Bug Summary

File:tools/lldb/source/Symbol/ClangASTContext.cpp
Warning:line 1916, column 32
Forming reference to null pointer

Annotated Source Code

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clang -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name ClangASTContext.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -mrelocation-model pic -pic-level 2 -mthread-model posix -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -momit-leaf-frame-pointer -ffunction-sections -fdata-sections -resource-dir /usr/lib/llvm-8/lib/clang/8.0.0 -D HAVE_ROUND -D LLDB_CONFIGURATION_RELEASE -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I /build/llvm-toolchain-snapshot-8~svn345461/build-llvm/tools/lldb/source/Symbol -I /build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol -I /build/llvm-toolchain-snapshot-8~svn345461/build-llvm/tools/lldb/include -I /build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/include -I /build/llvm-toolchain-snapshot-8~svn345461/build-llvm/include -I /build/llvm-toolchain-snapshot-8~svn345461/include -I /usr/include/python2.7 -I /build/llvm-toolchain-snapshot-8~svn345461/tools/clang/include -I /build/llvm-toolchain-snapshot-8~svn345461/build-llvm/tools/lldb/../clang/include -I /build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/. -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/x86_64-linux-gnu/c++/6.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0/backward -internal-isystem /usr/include/clang/8.0.0/include/ -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-8/lib/clang/8.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-comment -Wno-deprecated-declarations -Wno-unknown-pragmas -Wno-strict-aliasing -Wno-deprecated-register -Wno-vla-extension -std=c++11 -fdeprecated-macro -fdebug-compilation-dir /build/llvm-toolchain-snapshot-8~svn345461/build-llvm/tools/lldb/source/Symbol -ferror-limit 19 -fmessage-length 0 -fvisibility-inlines-hidden -fobjc-runtime=gcc -fdiagnostics-show-option -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -o /tmp/scan-build-2018-10-27-211344-32123-1 -x c++ /build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp -faddrsig

/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp

1//===-- ClangASTContext.cpp -------------------------------------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "lldb/Symbol/ClangASTContext.h"
11
12#include "llvm/Support/FormatAdapters.h"
13#include "llvm/Support/FormatVariadic.h"
14
15// C Includes
16// C++ Includes
17#include <mutex>
18#include <string>
19#include <vector>
20
21// Other libraries and framework includes
22
23// Clang headers like to use NDEBUG inside of them to enable/disable debug
24// related features using "#ifndef NDEBUG" preprocessor blocks to do one thing
25// or another. This is bad because it means that if clang was built in release
26// mode, it assumes that you are building in release mode which is not always
27// the case. You can end up with functions that are defined as empty in header
28// files when NDEBUG is not defined, and this can cause link errors with the
29// clang .a files that you have since you might be missing functions in the .a
30// file. So we have to define NDEBUG when including clang headers to avoid any
31// mismatches. This is covered by rdar://problem/8691220
32
33#if !defined(NDEBUG) && !defined(LLVM_NDEBUG_OFF)
34#define LLDB_DEFINED_NDEBUG_FOR_CLANG
35#define NDEBUG
36// Need to include assert.h so it is as clang would expect it to be (disabled)
37#include <assert.h>
38#endif
39
40#include "clang/AST/ASTContext.h"
41#include "clang/AST/ASTImporter.h"
42#include "clang/AST/Attr.h"
43#include "clang/AST/CXXInheritance.h"
44#include "clang/AST/DeclObjC.h"
45#include "clang/AST/DeclTemplate.h"
46#include "clang/AST/Mangle.h"
47#include "clang/AST/RecordLayout.h"
48#include "clang/AST/Type.h"
49#include "clang/AST/VTableBuilder.h"
50#include "clang/Basic/Builtins.h"
51#include "clang/Basic/Diagnostic.h"
52#include "clang/Basic/FileManager.h"
53#include "clang/Basic/FileSystemOptions.h"
54#include "clang/Basic/SourceManager.h"
55#include "clang/Basic/TargetInfo.h"
56#include "clang/Basic/TargetOptions.h"
57#include "clang/Frontend/FrontendOptions.h"
58#include "clang/Frontend/LangStandard.h"
59
60#ifdef LLDB_DEFINED_NDEBUG_FOR_CLANG
61#undef NDEBUG
62#undef LLDB_DEFINED_NDEBUG_FOR_CLANG
63// Need to re-include assert.h so it is as _we_ would expect it to be (enabled)
64#include <assert.h>
65#endif
66
67#include "llvm/Support/Signals.h"
68#include "llvm/Support/Threading.h"
69
70#include "Plugins/ExpressionParser/Clang/ClangFunctionCaller.h"
71#include "Plugins/ExpressionParser/Clang/ClangUserExpression.h"
72#include "Plugins/ExpressionParser/Clang/ClangUtilityFunction.h"
73#include "lldb/Utility/ArchSpec.h"
74#include "lldb/Utility/Flags.h"
75
76#include "lldb/Core/DumpDataExtractor.h"
77#include "lldb/Core/Module.h"
78#include "lldb/Core/PluginManager.h"
79#include "lldb/Core/StreamFile.h"
80#include "lldb/Core/ThreadSafeDenseMap.h"
81#include "lldb/Core/UniqueCStringMap.h"
82#include "lldb/Symbol/ClangASTContext.h"
83#include "lldb/Symbol/ClangASTImporter.h"
84#include "lldb/Symbol/ClangExternalASTSourceCallbacks.h"
85#include "lldb/Symbol/ClangExternalASTSourceCommon.h"
86#include "lldb/Symbol/ClangUtil.h"
87#include "lldb/Symbol/ObjectFile.h"
88#include "lldb/Symbol/SymbolFile.h"
89#include "lldb/Symbol/VerifyDecl.h"
90#include "lldb/Target/ExecutionContext.h"
91#include "lldb/Target/Language.h"
92#include "lldb/Target/ObjCLanguageRuntime.h"
93#include "lldb/Target/Process.h"
94#include "lldb/Target/Target.h"
95#include "lldb/Utility/DataExtractor.h"
96#include "lldb/Utility/LLDBAssert.h"
97#include "lldb/Utility/Log.h"
98#include "lldb/Utility/RegularExpression.h"
99#include "lldb/Utility/Scalar.h"
100
101#include "Plugins/SymbolFile/DWARF/DWARFASTParserClang.h"
102#include "Plugins/SymbolFile/PDB/PDBASTParser.h"
103
104#include <stdio.h>
105
106#include <mutex>
107
108using namespace lldb;
109using namespace lldb_private;
110using namespace llvm;
111using namespace clang;
112
113namespace {
114static inline bool
115ClangASTContextSupportsLanguage(lldb::LanguageType language) {
116 return language == eLanguageTypeUnknown || // Clang is the default type system
117 Language::LanguageIsC(language) ||
118 Language::LanguageIsCPlusPlus(language) ||
119 Language::LanguageIsObjC(language) ||
120 Language::LanguageIsPascal(language) ||
121 // Use Clang for Rust until there is a proper language plugin for it
122 language == eLanguageTypeRust ||
123 language == eLanguageTypeExtRenderScript ||
124 // Use Clang for D until there is a proper language plugin for it
125 language == eLanguageTypeD;
126}
127
128// Checks whether m1 is an overload of m2 (as opposed to an override). This is
129// called by addOverridesForMethod to distinguish overrides (which share a
130// vtable entry) from overloads (which require distinct entries).
131bool isOverload(clang::CXXMethodDecl *m1, clang::CXXMethodDecl *m2) {
132 // FIXME: This should detect covariant return types, but currently doesn't.
133 lldbassert(&m1->getASTContext() == &m2->getASTContext() &&lldb_private::lldb_assert(static_cast<bool>(&m1->
getASTContext() == &m2->getASTContext() && "Methods should have the same AST context"
), "&m1->getASTContext() == &m2->getASTContext() && \"Methods should have the same AST context\""
, __FUNCTION__, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 134)
134 "Methods should have the same AST context")lldb_private::lldb_assert(static_cast<bool>(&m1->
getASTContext() == &m2->getASTContext() && "Methods should have the same AST context"
), "&m1->getASTContext() == &m2->getASTContext() && \"Methods should have the same AST context\""
, __FUNCTION__, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 134)
;
135 clang::ASTContext &context = m1->getASTContext();
136
137 const auto *m1Type = llvm::cast<clang::FunctionProtoType>(
138 context.getCanonicalType(m1->getType()));
139
140 const auto *m2Type = llvm::cast<clang::FunctionProtoType>(
141 context.getCanonicalType(m2->getType()));
142
143 auto compareArgTypes = [&context](const clang::QualType &m1p,
144 const clang::QualType &m2p) {
145 return context.hasSameType(m1p.getUnqualifiedType(),
146 m2p.getUnqualifiedType());
147 };
148
149 // FIXME: In C++14 and later, we can just pass m2Type->param_type_end()
150 // as a fourth parameter to std::equal().
151 return (m1->getNumParams() != m2->getNumParams()) ||
152 !std::equal(m1Type->param_type_begin(), m1Type->param_type_end(),
153 m2Type->param_type_begin(), compareArgTypes);
154}
155
156// If decl is a virtual method, walk the base classes looking for methods that
157// decl overrides. This table of overridden methods is used by IRGen to
158// determine the vtable layout for decl's parent class.
159void addOverridesForMethod(clang::CXXMethodDecl *decl) {
160 if (!decl->isVirtual())
161 return;
162
163 clang::CXXBasePaths paths;
164
165 auto find_overridden_methods =
166 [decl](const clang::CXXBaseSpecifier *specifier,
167 clang::CXXBasePath &path) {
168 if (auto *base_record = llvm::dyn_cast<clang::CXXRecordDecl>(
169 specifier->getType()->getAs<clang::RecordType>()->getDecl())) {
170
171 clang::DeclarationName name = decl->getDeclName();
172
173 // If this is a destructor, check whether the base class destructor is
174 // virtual.
175 if (name.getNameKind() == clang::DeclarationName::CXXDestructorName)
176 if (auto *baseDtorDecl = base_record->getDestructor()) {
177 if (baseDtorDecl->isVirtual()) {
178 path.Decls = baseDtorDecl;
179 return true;
180 } else
181 return false;
182 }
183
184 // Otherwise, search for name in the base class.
185 for (path.Decls = base_record->lookup(name); !path.Decls.empty();
186 path.Decls = path.Decls.slice(1)) {
187 if (auto *method_decl =
188 llvm::dyn_cast<clang::CXXMethodDecl>(path.Decls.front()))
189 if (method_decl->isVirtual() && !isOverload(decl, method_decl)) {
190 path.Decls = method_decl;
191 return true;
192 }
193 }
194 }
195
196 return false;
197 };
198
199 if (decl->getParent()->lookupInBases(find_overridden_methods, paths)) {
200 for (auto *overridden_decl : paths.found_decls())
201 decl->addOverriddenMethod(
202 llvm::cast<clang::CXXMethodDecl>(overridden_decl));
203 }
204}
205}
206
207typedef lldb_private::ThreadSafeDenseMap<clang::ASTContext *, ClangASTContext *>
208 ClangASTMap;
209
210static ClangASTMap &GetASTMap() {
211 static ClangASTMap *g_map_ptr = nullptr;
212 static llvm::once_flag g_once_flag;
213 llvm::call_once(g_once_flag, []() {
214 g_map_ptr = new ClangASTMap(); // leaked on purpose to avoid spins
215 });
216 return *g_map_ptr;
217}
218
219bool ClangASTContext::IsOperator(const char *name,
220 clang::OverloadedOperatorKind &op_kind) {
221 if (name == nullptr || name[0] == '\0')
222 return false;
223
224#define OPERATOR_PREFIX "operator"
225#define OPERATOR_PREFIX_LENGTH (sizeof(OPERATOR_PREFIX) - 1)
226
227 const char *post_op_name = nullptr;
228
229 bool no_space = true;
230
231 if (::strncmp(name, OPERATOR_PREFIX, OPERATOR_PREFIX_LENGTH))
232 return false;
233
234 post_op_name = name + OPERATOR_PREFIX_LENGTH;
235
236 if (post_op_name[0] == ' ') {
237 post_op_name++;
238 no_space = false;
239 }
240
241#undef OPERATOR_PREFIX
242#undef OPERATOR_PREFIX_LENGTH
243
244 // This is an operator, set the overloaded operator kind to invalid in case
245 // this is a conversion operator...
246 op_kind = clang::NUM_OVERLOADED_OPERATORS;
247
248 switch (post_op_name[0]) {
249 default:
250 if (no_space)
251 return false;
252 break;
253 case 'n':
254 if (no_space)
255 return false;
256 if (strcmp(post_op_name, "new") == 0)
257 op_kind = clang::OO_New;
258 else if (strcmp(post_op_name, "new[]") == 0)
259 op_kind = clang::OO_Array_New;
260 break;
261
262 case 'd':
263 if (no_space)
264 return false;
265 if (strcmp(post_op_name, "delete") == 0)
266 op_kind = clang::OO_Delete;
267 else if (strcmp(post_op_name, "delete[]") == 0)
268 op_kind = clang::OO_Array_Delete;
269 break;
270
271 case '+':
272 if (post_op_name[1] == '\0')
273 op_kind = clang::OO_Plus;
274 else if (post_op_name[2] == '\0') {
275 if (post_op_name[1] == '=')
276 op_kind = clang::OO_PlusEqual;
277 else if (post_op_name[1] == '+')
278 op_kind = clang::OO_PlusPlus;
279 }
280 break;
281
282 case '-':
283 if (post_op_name[1] == '\0')
284 op_kind = clang::OO_Minus;
285 else if (post_op_name[2] == '\0') {
286 switch (post_op_name[1]) {
287 case '=':
288 op_kind = clang::OO_MinusEqual;
289 break;
290 case '-':
291 op_kind = clang::OO_MinusMinus;
292 break;
293 case '>':
294 op_kind = clang::OO_Arrow;
295 break;
296 }
297 } else if (post_op_name[3] == '\0') {
298 if (post_op_name[2] == '*')
299 op_kind = clang::OO_ArrowStar;
300 break;
301 }
302 break;
303
304 case '*':
305 if (post_op_name[1] == '\0')
306 op_kind = clang::OO_Star;
307 else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
308 op_kind = clang::OO_StarEqual;
309 break;
310
311 case '/':
312 if (post_op_name[1] == '\0')
313 op_kind = clang::OO_Slash;
314 else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
315 op_kind = clang::OO_SlashEqual;
316 break;
317
318 case '%':
319 if (post_op_name[1] == '\0')
320 op_kind = clang::OO_Percent;
321 else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
322 op_kind = clang::OO_PercentEqual;
323 break;
324
325 case '^':
326 if (post_op_name[1] == '\0')
327 op_kind = clang::OO_Caret;
328 else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
329 op_kind = clang::OO_CaretEqual;
330 break;
331
332 case '&':
333 if (post_op_name[1] == '\0')
334 op_kind = clang::OO_Amp;
335 else if (post_op_name[2] == '\0') {
336 switch (post_op_name[1]) {
337 case '=':
338 op_kind = clang::OO_AmpEqual;
339 break;
340 case '&':
341 op_kind = clang::OO_AmpAmp;
342 break;
343 }
344 }
345 break;
346
347 case '|':
348 if (post_op_name[1] == '\0')
349 op_kind = clang::OO_Pipe;
350 else if (post_op_name[2] == '\0') {
351 switch (post_op_name[1]) {
352 case '=':
353 op_kind = clang::OO_PipeEqual;
354 break;
355 case '|':
356 op_kind = clang::OO_PipePipe;
357 break;
358 }
359 }
360 break;
361
362 case '~':
363 if (post_op_name[1] == '\0')
364 op_kind = clang::OO_Tilde;
365 break;
366
367 case '!':
368 if (post_op_name[1] == '\0')
369 op_kind = clang::OO_Exclaim;
370 else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
371 op_kind = clang::OO_ExclaimEqual;
372 break;
373
374 case '=':
375 if (post_op_name[1] == '\0')
376 op_kind = clang::OO_Equal;
377 else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
378 op_kind = clang::OO_EqualEqual;
379 break;
380
381 case '<':
382 if (post_op_name[1] == '\0')
383 op_kind = clang::OO_Less;
384 else if (post_op_name[2] == '\0') {
385 switch (post_op_name[1]) {
386 case '<':
387 op_kind = clang::OO_LessLess;
388 break;
389 case '=':
390 op_kind = clang::OO_LessEqual;
391 break;
392 }
393 } else if (post_op_name[3] == '\0') {
394 if (post_op_name[2] == '=')
395 op_kind = clang::OO_LessLessEqual;
396 }
397 break;
398
399 case '>':
400 if (post_op_name[1] == '\0')
401 op_kind = clang::OO_Greater;
402 else if (post_op_name[2] == '\0') {
403 switch (post_op_name[1]) {
404 case '>':
405 op_kind = clang::OO_GreaterGreater;
406 break;
407 case '=':
408 op_kind = clang::OO_GreaterEqual;
409 break;
410 }
411 } else if (post_op_name[1] == '>' && post_op_name[2] == '=' &&
412 post_op_name[3] == '\0') {
413 op_kind = clang::OO_GreaterGreaterEqual;
414 }
415 break;
416
417 case ',':
418 if (post_op_name[1] == '\0')
419 op_kind = clang::OO_Comma;
420 break;
421
422 case '(':
423 if (post_op_name[1] == ')' && post_op_name[2] == '\0')
424 op_kind = clang::OO_Call;
425 break;
426
427 case '[':
428 if (post_op_name[1] == ']' && post_op_name[2] == '\0')
429 op_kind = clang::OO_Subscript;
430 break;
431 }
432
433 return true;
434}
435
436clang::AccessSpecifier
437ClangASTContext::ConvertAccessTypeToAccessSpecifier(AccessType access) {
438 switch (access) {
439 default:
440 break;
441 case eAccessNone:
442 return AS_none;
443 case eAccessPublic:
444 return AS_public;
445 case eAccessPrivate:
446 return AS_private;
447 case eAccessProtected:
448 return AS_protected;
449 }
450 return AS_none;
451}
452
453static void ParseLangArgs(LangOptions &Opts, InputKind IK, const char *triple) {
454 // FIXME: Cleanup per-file based stuff.
455
456 // Set some properties which depend solely on the input kind; it would be
457 // nice to move these to the language standard, and have the driver resolve
458 // the input kind + language standard.
459 if (IK.getLanguage() == InputKind::Asm) {
460 Opts.AsmPreprocessor = 1;
461 } else if (IK.isObjectiveC()) {
462 Opts.ObjC1 = Opts.ObjC2 = 1;
463 }
464
465 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
466
467 if (LangStd == LangStandard::lang_unspecified) {
468 // Based on the base language, pick one.
469 switch (IK.getLanguage()) {
470 case InputKind::Unknown:
471 case InputKind::LLVM_IR:
472 case InputKind::RenderScript:
473 llvm_unreachable("Invalid input kind!")::llvm::llvm_unreachable_internal("Invalid input kind!", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 473)
;
474 case InputKind::OpenCL:
475 LangStd = LangStandard::lang_opencl10;
476 break;
477 case InputKind::CUDA:
478 LangStd = LangStandard::lang_cuda;
479 break;
480 case InputKind::Asm:
481 case InputKind::C:
482 case InputKind::ObjC:
483 LangStd = LangStandard::lang_gnu99;
484 break;
485 case InputKind::CXX:
486 case InputKind::ObjCXX:
487 LangStd = LangStandard::lang_gnucxx98;
488 break;
489 case InputKind::HIP:
490 LangStd = LangStandard::lang_hip;
491 break;
492 }
493 }
494
495 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
496 Opts.LineComment = Std.hasLineComments();
497 Opts.C99 = Std.isC99();
498 Opts.CPlusPlus = Std.isCPlusPlus();
499 Opts.CPlusPlus11 = Std.isCPlusPlus11();
500 Opts.Digraphs = Std.hasDigraphs();
501 Opts.GNUMode = Std.isGNUMode();
502 Opts.GNUInline = !Std.isC99();
503 Opts.HexFloats = Std.hasHexFloats();
504 Opts.ImplicitInt = Std.hasImplicitInt();
505
506 Opts.WChar = true;
507
508 // OpenCL has some additional defaults.
509 if (LangStd == LangStandard::lang_opencl10) {
510 Opts.OpenCL = 1;
511 Opts.AltiVec = 1;
512 Opts.CXXOperatorNames = 1;
513 Opts.LaxVectorConversions = 1;
514 }
515
516 // OpenCL and C++ both have bool, true, false keywords.
517 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
518
519 Opts.setValueVisibilityMode(DefaultVisibility);
520
521 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs is
522 // specified, or -std is set to a conforming mode.
523 Opts.Trigraphs = !Opts.GNUMode;
524 Opts.CharIsSigned = ArchSpec(triple).CharIsSignedByDefault();
525 Opts.OptimizeSize = 0;
526
527 // FIXME: Eliminate this dependency.
528 // unsigned Opt =
529 // Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags);
530 // Opts.Optimize = Opt != 0;
531 unsigned Opt = 0;
532
533 // This is the __NO_INLINE__ define, which just depends on things like the
534 // optimization level and -fno-inline, not actually whether the backend has
535 // inlining enabled.
536 //
537 // FIXME: This is affected by other options (-fno-inline).
538 Opts.NoInlineDefine = !Opt;
539}
540
541ClangASTContext::ClangASTContext(const char *target_triple)
542 : TypeSystem(TypeSystem::eKindClang), m_target_triple(), m_ast_ap(),
543 m_language_options_ap(), m_source_manager_ap(), m_diagnostics_engine_ap(),
544 m_target_options_rp(), m_target_info_ap(), m_identifier_table_ap(),
545 m_selector_table_ap(), m_builtins_ap(), m_callback_tag_decl(nullptr),
546 m_callback_objc_decl(nullptr), m_callback_baton(nullptr),
547 m_pointer_byte_size(0), m_ast_owned(false) {
548 if (target_triple && target_triple[0])
549 SetTargetTriple(target_triple);
550}
551
552//----------------------------------------------------------------------
553// Destructor
554//----------------------------------------------------------------------
555ClangASTContext::~ClangASTContext() { Finalize(); }
556
557ConstString ClangASTContext::GetPluginNameStatic() {
558 return ConstString("clang");
559}
560
561ConstString ClangASTContext::GetPluginName() {
562 return ClangASTContext::GetPluginNameStatic();
563}
564
565uint32_t ClangASTContext::GetPluginVersion() { return 1; }
566
567lldb::TypeSystemSP ClangASTContext::CreateInstance(lldb::LanguageType language,
568 lldb_private::Module *module,
569 Target *target) {
570 if (ClangASTContextSupportsLanguage(language)) {
571 ArchSpec arch;
572 if (module)
573 arch = module->GetArchitecture();
574 else if (target)
575 arch = target->GetArchitecture();
576
577 if (arch.IsValid()) {
578 ArchSpec fixed_arch = arch;
579 // LLVM wants this to be set to iOS or MacOSX; if we're working on
580 // a bare-boards type image, change the triple for llvm's benefit.
581 if (fixed_arch.GetTriple().getVendor() == llvm::Triple::Apple &&
582 fixed_arch.GetTriple().getOS() == llvm::Triple::UnknownOS) {
583 if (fixed_arch.GetTriple().getArch() == llvm::Triple::arm ||
584 fixed_arch.GetTriple().getArch() == llvm::Triple::aarch64 ||
585 fixed_arch.GetTriple().getArch() == llvm::Triple::thumb) {
586 fixed_arch.GetTriple().setOS(llvm::Triple::IOS);
587 } else {
588 fixed_arch.GetTriple().setOS(llvm::Triple::MacOSX);
589 }
590 }
591
592 if (module) {
593 std::shared_ptr<ClangASTContext> ast_sp(new ClangASTContext);
594 if (ast_sp) {
595 ast_sp->SetArchitecture(fixed_arch);
596 }
597 return ast_sp;
598 } else if (target && target->IsValid()) {
599 std::shared_ptr<ClangASTContextForExpressions> ast_sp(
600 new ClangASTContextForExpressions(*target));
601 if (ast_sp) {
602 ast_sp->SetArchitecture(fixed_arch);
603 ast_sp->m_scratch_ast_source_ap.reset(
604 new ClangASTSource(target->shared_from_this()));
605 lldbassert(ast_sp->getFileManager())lldb_private::lldb_assert(static_cast<bool>(ast_sp->
getFileManager()), "ast_sp->getFileManager()", __FUNCTION__
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 605)
;
606 ast_sp->m_scratch_ast_source_ap->InstallASTContext(
607 *ast_sp->getASTContext(), *ast_sp->getFileManager(), true);
608 llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> proxy_ast_source(
609 ast_sp->m_scratch_ast_source_ap->CreateProxy());
610 ast_sp->SetExternalSource(proxy_ast_source);
611 return ast_sp;
612 }
613 }
614 }
615 }
616 return lldb::TypeSystemSP();
617}
618
619void ClangASTContext::EnumerateSupportedLanguages(
620 std::set<lldb::LanguageType> &languages_for_types,
621 std::set<lldb::LanguageType> &languages_for_expressions) {
622 static std::vector<lldb::LanguageType> s_supported_languages_for_types(
623 {lldb::eLanguageTypeC89, lldb::eLanguageTypeC, lldb::eLanguageTypeC11,
624 lldb::eLanguageTypeC_plus_plus, lldb::eLanguageTypeC99,
625 lldb::eLanguageTypeObjC, lldb::eLanguageTypeObjC_plus_plus,
626 lldb::eLanguageTypeC_plus_plus_03, lldb::eLanguageTypeC_plus_plus_11,
627 lldb::eLanguageTypeC11, lldb::eLanguageTypeC_plus_plus_14});
628
629 static std::vector<lldb::LanguageType> s_supported_languages_for_expressions(
630 {lldb::eLanguageTypeC_plus_plus, lldb::eLanguageTypeObjC_plus_plus,
631 lldb::eLanguageTypeC_plus_plus_03, lldb::eLanguageTypeC_plus_plus_11,
632 lldb::eLanguageTypeC_plus_plus_14});
633
634 languages_for_types.insert(s_supported_languages_for_types.begin(),
635 s_supported_languages_for_types.end());
636 languages_for_expressions.insert(
637 s_supported_languages_for_expressions.begin(),
638 s_supported_languages_for_expressions.end());
639}
640
641void ClangASTContext::Initialize() {
642 PluginManager::RegisterPlugin(GetPluginNameStatic(),
643 "clang base AST context plug-in",
644 CreateInstance, EnumerateSupportedLanguages);
645}
646
647void ClangASTContext::Terminate() {
648 PluginManager::UnregisterPlugin(CreateInstance);
649}
650
651void ClangASTContext::Finalize() {
652 if (m_ast_ap.get()) {
653 GetASTMap().Erase(m_ast_ap.get());
654 if (!m_ast_owned)
655 m_ast_ap.release();
656 }
657
658 m_builtins_ap.reset();
659 m_selector_table_ap.reset();
660 m_identifier_table_ap.reset();
661 m_target_info_ap.reset();
662 m_target_options_rp.reset();
663 m_diagnostics_engine_ap.reset();
664 m_source_manager_ap.reset();
665 m_language_options_ap.reset();
666 m_ast_ap.reset();
667 m_scratch_ast_source_ap.reset();
668}
669
670void ClangASTContext::Clear() {
671 m_ast_ap.reset();
672 m_language_options_ap.reset();
673 m_source_manager_ap.reset();
674 m_diagnostics_engine_ap.reset();
675 m_target_options_rp.reset();
676 m_target_info_ap.reset();
677 m_identifier_table_ap.reset();
678 m_selector_table_ap.reset();
679 m_builtins_ap.reset();
680 m_pointer_byte_size = 0;
681}
682
683const char *ClangASTContext::GetTargetTriple() {
684 return m_target_triple.c_str();
685}
686
687void ClangASTContext::SetTargetTriple(const char *target_triple) {
688 Clear();
689 m_target_triple.assign(target_triple);
690}
691
692void ClangASTContext::SetArchitecture(const ArchSpec &arch) {
693 SetTargetTriple(arch.GetTriple().str().c_str());
694}
695
696bool ClangASTContext::HasExternalSource() {
697 ASTContext *ast = getASTContext();
698 if (ast)
699 return ast->getExternalSource() != nullptr;
700 return false;
701}
702
703void ClangASTContext::SetExternalSource(
704 llvm::IntrusiveRefCntPtr<ExternalASTSource> &ast_source_ap) {
705 ASTContext *ast = getASTContext();
706 if (ast) {
10
Taking true branch
707 ast->setExternalSource(ast_source_ap);
11
Value assigned to field '_M_head_impl'
708 ast->getTranslationUnitDecl()->setHasExternalLexicalStorage(true);
709 }
710}
711
712void ClangASTContext::RemoveExternalSource() {
713 ASTContext *ast = getASTContext();
714
715 if (ast) {
716 llvm::IntrusiveRefCntPtr<ExternalASTSource> empty_ast_source_ap;
717 ast->setExternalSource(empty_ast_source_ap);
718 ast->getTranslationUnitDecl()->setHasExternalLexicalStorage(false);
719 }
720}
721
722void ClangASTContext::setASTContext(clang::ASTContext *ast_ctx) {
723 if (!m_ast_owned) {
724 m_ast_ap.release();
725 }
726 m_ast_owned = false;
727 m_ast_ap.reset(ast_ctx);
728 GetASTMap().Insert(ast_ctx, this);
729}
730
731ASTContext *ClangASTContext::getASTContext() {
732 if (m_ast_ap.get() == nullptr) {
4
Assuming the condition is true
5
Taking true branch
733 m_ast_owned = true;
734 m_ast_ap.reset(new ASTContext(*getLanguageOptions(), *getSourceManager(),
735 *getIdentifierTable(), *getSelectorTable(),
736 *getBuiltinContext()));
737
738 m_ast_ap->getDiagnostics().setClient(getDiagnosticConsumer(), false);
739
740 // This can be NULL if we don't know anything about the architecture or if
741 // the target for an architecture isn't enabled in the llvm/clang that we
742 // built
743 TargetInfo *target_info = getTargetInfo();
744 if (target_info)
6
Taking true branch
745 m_ast_ap->InitBuiltinTypes(*target_info);
746
747 if ((m_callback_tag_decl || m_callback_objc_decl) && m_callback_baton) {
7
Assuming the condition is false
8
Assuming the condition is false
748 m_ast_ap->getTranslationUnitDecl()->setHasExternalLexicalStorage();
749 // m_ast_ap->getTranslationUnitDecl()->setHasExternalVisibleStorage();
750 }
751
752 GetASTMap().Insert(m_ast_ap.get(), this);
753
754 llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_ap(
755 new ClangExternalASTSourceCallbacks(
756 ClangASTContext::CompleteTagDecl,
757 ClangASTContext::CompleteObjCInterfaceDecl, nullptr,
758 ClangASTContext::LayoutRecordType, this));
759 SetExternalSource(ast_source_ap);
9
Calling 'ClangASTContext::SetExternalSource'
12
Returning from 'ClangASTContext::SetExternalSource'
760 }
761 return m_ast_ap.get();
13
Calling 'unique_ptr::get'
28
Returning from 'unique_ptr::get'
29
Returning pointer
762}
763
764ClangASTContext *ClangASTContext::GetASTContext(clang::ASTContext *ast) {
765 ClangASTContext *clang_ast = GetASTMap().Lookup(ast);
766 return clang_ast;
767}
768
769Builtin::Context *ClangASTContext::getBuiltinContext() {
770 if (m_builtins_ap.get() == nullptr)
771 m_builtins_ap.reset(new Builtin::Context());
772 return m_builtins_ap.get();
773}
774
775IdentifierTable *ClangASTContext::getIdentifierTable() {
776 if (m_identifier_table_ap.get() == nullptr)
777 m_identifier_table_ap.reset(
778 new IdentifierTable(*ClangASTContext::getLanguageOptions(), nullptr));
779 return m_identifier_table_ap.get();
780}
781
782LangOptions *ClangASTContext::getLanguageOptions() {
783 if (m_language_options_ap.get() == nullptr) {
784 m_language_options_ap.reset(new LangOptions());
785 ParseLangArgs(*m_language_options_ap, InputKind::ObjCXX, GetTargetTriple());
786 // InitializeLangOptions(*m_language_options_ap, InputKind::ObjCXX);
787 }
788 return m_language_options_ap.get();
789}
790
791SelectorTable *ClangASTContext::getSelectorTable() {
792 if (m_selector_table_ap.get() == nullptr)
793 m_selector_table_ap.reset(new SelectorTable());
794 return m_selector_table_ap.get();
795}
796
797clang::FileManager *ClangASTContext::getFileManager() {
798 if (m_file_manager_ap.get() == nullptr) {
799 clang::FileSystemOptions file_system_options;
800 m_file_manager_ap.reset(new clang::FileManager(file_system_options));
801 }
802 return m_file_manager_ap.get();
803}
804
805clang::SourceManager *ClangASTContext::getSourceManager() {
806 if (m_source_manager_ap.get() == nullptr)
807 m_source_manager_ap.reset(
808 new clang::SourceManager(*getDiagnosticsEngine(), *getFileManager()));
809 return m_source_manager_ap.get();
810}
811
812clang::DiagnosticsEngine *ClangASTContext::getDiagnosticsEngine() {
813 if (m_diagnostics_engine_ap.get() == nullptr) {
814 llvm::IntrusiveRefCntPtr<DiagnosticIDs> diag_id_sp(new DiagnosticIDs());
815 m_diagnostics_engine_ap.reset(
816 new DiagnosticsEngine(diag_id_sp, new DiagnosticOptions()));
817 }
818 return m_diagnostics_engine_ap.get();
819}
820
821clang::MangleContext *ClangASTContext::getMangleContext() {
822 if (m_mangle_ctx_ap.get() == nullptr)
823 m_mangle_ctx_ap.reset(getASTContext()->createMangleContext());
824 return m_mangle_ctx_ap.get();
825}
826
827class NullDiagnosticConsumer : public DiagnosticConsumer {
828public:
829 NullDiagnosticConsumer() {
830 m_log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS(1u << 8));
831 }
832
833 void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
834 const clang::Diagnostic &info) {
835 if (m_log) {
836 llvm::SmallVector<char, 32> diag_str(10);
837 info.FormatDiagnostic(diag_str);
838 diag_str.push_back('\0');
839 m_log->Printf("Compiler diagnostic: %s\n", diag_str.data());
840 }
841 }
842
843 DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const {
844 return new NullDiagnosticConsumer();
845 }
846
847private:
848 Log *m_log;
849};
850
851DiagnosticConsumer *ClangASTContext::getDiagnosticConsumer() {
852 if (m_diagnostic_consumer_ap.get() == nullptr)
853 m_diagnostic_consumer_ap.reset(new NullDiagnosticConsumer);
854
855 return m_diagnostic_consumer_ap.get();
856}
857
858std::shared_ptr<clang::TargetOptions> &ClangASTContext::getTargetOptions() {
859 if (m_target_options_rp.get() == nullptr && !m_target_triple.empty()) {
860 m_target_options_rp = std::make_shared<clang::TargetOptions>();
861 if (m_target_options_rp.get() != nullptr)
862 m_target_options_rp->Triple = m_target_triple;
863 }
864 return m_target_options_rp;
865}
866
867TargetInfo *ClangASTContext::getTargetInfo() {
868 // target_triple should be something like "x86_64-apple-macosx"
869 if (m_target_info_ap.get() == nullptr && !m_target_triple.empty())
870 m_target_info_ap.reset(TargetInfo::CreateTargetInfo(*getDiagnosticsEngine(),
871 getTargetOptions()));
872 return m_target_info_ap.get();
873}
874
875#pragma mark Basic Types
876
877static inline bool QualTypeMatchesBitSize(const uint64_t bit_size,
878 ASTContext *ast, QualType qual_type) {
879 uint64_t qual_type_bit_size = ast->getTypeSize(qual_type);
880 if (qual_type_bit_size == bit_size)
881 return true;
882 return false;
883}
884
885CompilerType
886ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(Encoding encoding,
887 size_t bit_size) {
888 return ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(
889 getASTContext(), encoding, bit_size);
890}
891
892CompilerType ClangASTContext::GetBuiltinTypeForEncodingAndBitSize(
893 ASTContext *ast, Encoding encoding, uint32_t bit_size) {
894 if (!ast)
895 return CompilerType();
896 switch (encoding) {
897 case eEncodingInvalid:
898 if (QualTypeMatchesBitSize(bit_size, ast, ast->VoidPtrTy))
899 return CompilerType(ast, ast->VoidPtrTy);
900 break;
901
902 case eEncodingUint:
903 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
904 return CompilerType(ast, ast->UnsignedCharTy);
905 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
906 return CompilerType(ast, ast->UnsignedShortTy);
907 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
908 return CompilerType(ast, ast->UnsignedIntTy);
909 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy))
910 return CompilerType(ast, ast->UnsignedLongTy);
911 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy))
912 return CompilerType(ast, ast->UnsignedLongLongTy);
913 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty))
914 return CompilerType(ast, ast->UnsignedInt128Ty);
915 break;
916
917 case eEncodingSint:
918 if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy))
919 return CompilerType(ast, ast->SignedCharTy);
920 if (QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy))
921 return CompilerType(ast, ast->ShortTy);
922 if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy))
923 return CompilerType(ast, ast->IntTy);
924 if (QualTypeMatchesBitSize(bit_size, ast, ast->LongTy))
925 return CompilerType(ast, ast->LongTy);
926 if (QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy))
927 return CompilerType(ast, ast->LongLongTy);
928 if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty))
929 return CompilerType(ast, ast->Int128Ty);
930 break;
931
932 case eEncodingIEEE754:
933 if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy))
934 return CompilerType(ast, ast->FloatTy);
935 if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy))
936 return CompilerType(ast, ast->DoubleTy);
937 if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy))
938 return CompilerType(ast, ast->LongDoubleTy);
939 if (QualTypeMatchesBitSize(bit_size, ast, ast->HalfTy))
940 return CompilerType(ast, ast->HalfTy);
941 break;
942
943 case eEncodingVector:
944 // Sanity check that bit_size is a multiple of 8's.
945 if (bit_size && !(bit_size & 0x7u))
946 return CompilerType(
947 ast, ast->getExtVectorType(ast->UnsignedCharTy, bit_size / 8));
948 break;
949 }
950
951 return CompilerType();
952}
953
954lldb::BasicType
955ClangASTContext::GetBasicTypeEnumeration(const ConstString &name) {
956 if (name) {
957 typedef UniqueCStringMap<lldb::BasicType> TypeNameToBasicTypeMap;
958 static TypeNameToBasicTypeMap g_type_map;
959 static llvm::once_flag g_once_flag;
960 llvm::call_once(g_once_flag, []() {
961 // "void"
962 g_type_map.Append(ConstString("void"), eBasicTypeVoid);
963
964 // "char"
965 g_type_map.Append(ConstString("char"), eBasicTypeChar);
966 g_type_map.Append(ConstString("signed char"), eBasicTypeSignedChar);
967 g_type_map.Append(ConstString("unsigned char"), eBasicTypeUnsignedChar);
968 g_type_map.Append(ConstString("wchar_t"), eBasicTypeWChar);
969 g_type_map.Append(ConstString("signed wchar_t"), eBasicTypeSignedWChar);
970 g_type_map.Append(ConstString("unsigned wchar_t"),
971 eBasicTypeUnsignedWChar);
972 // "short"
973 g_type_map.Append(ConstString("short"), eBasicTypeShort);
974 g_type_map.Append(ConstString("short int"), eBasicTypeShort);
975 g_type_map.Append(ConstString("unsigned short"), eBasicTypeUnsignedShort);
976 g_type_map.Append(ConstString("unsigned short int"),
977 eBasicTypeUnsignedShort);
978
979 // "int"
980 g_type_map.Append(ConstString("int"), eBasicTypeInt);
981 g_type_map.Append(ConstString("signed int"), eBasicTypeInt);
982 g_type_map.Append(ConstString("unsigned int"), eBasicTypeUnsignedInt);
983 g_type_map.Append(ConstString("unsigned"), eBasicTypeUnsignedInt);
984
985 // "long"
986 g_type_map.Append(ConstString("long"), eBasicTypeLong);
987 g_type_map.Append(ConstString("long int"), eBasicTypeLong);
988 g_type_map.Append(ConstString("unsigned long"), eBasicTypeUnsignedLong);
989 g_type_map.Append(ConstString("unsigned long int"),
990 eBasicTypeUnsignedLong);
991
992 // "long long"
993 g_type_map.Append(ConstString("long long"), eBasicTypeLongLong);
994 g_type_map.Append(ConstString("long long int"), eBasicTypeLongLong);
995 g_type_map.Append(ConstString("unsigned long long"),
996 eBasicTypeUnsignedLongLong);
997 g_type_map.Append(ConstString("unsigned long long int"),
998 eBasicTypeUnsignedLongLong);
999
1000 // "int128"
1001 g_type_map.Append(ConstString("__int128_t"), eBasicTypeInt128);
1002 g_type_map.Append(ConstString("__uint128_t"), eBasicTypeUnsignedInt128);
1003
1004 // Miscellaneous
1005 g_type_map.Append(ConstString("bool"), eBasicTypeBool);
1006 g_type_map.Append(ConstString("float"), eBasicTypeFloat);
1007 g_type_map.Append(ConstString("double"), eBasicTypeDouble);
1008 g_type_map.Append(ConstString("long double"), eBasicTypeLongDouble);
1009 g_type_map.Append(ConstString("id"), eBasicTypeObjCID);
1010 g_type_map.Append(ConstString("SEL"), eBasicTypeObjCSel);
1011 g_type_map.Append(ConstString("nullptr"), eBasicTypeNullPtr);
1012 g_type_map.Sort();
1013 });
1014
1015 return g_type_map.Find(name, eBasicTypeInvalid);
1016 }
1017 return eBasicTypeInvalid;
1018}
1019
1020CompilerType ClangASTContext::GetBasicType(ASTContext *ast,
1021 const ConstString &name) {
1022 if (ast) {
1023 lldb::BasicType basic_type = ClangASTContext::GetBasicTypeEnumeration(name);
1024 return ClangASTContext::GetBasicType(ast, basic_type);
1025 }
1026 return CompilerType();
1027}
1028
1029uint32_t ClangASTContext::GetPointerByteSize() {
1030 if (m_pointer_byte_size == 0)
1031 m_pointer_byte_size = GetBasicType(lldb::eBasicTypeVoid)
1032 .GetPointerType()
1033 .GetByteSize(nullptr);
1034 return m_pointer_byte_size;
1035}
1036
1037CompilerType ClangASTContext::GetBasicType(lldb::BasicType basic_type) {
1038 return GetBasicType(getASTContext(), basic_type);
1039}
1040
1041CompilerType ClangASTContext::GetBasicType(ASTContext *ast,
1042 lldb::BasicType basic_type) {
1043 if (!ast)
1044 return CompilerType();
1045 lldb::opaque_compiler_type_t clang_type =
1046 GetOpaqueCompilerType(ast, basic_type);
1047
1048 if (clang_type)
1049 return CompilerType(GetASTContext(ast), clang_type);
1050 return CompilerType();
1051}
1052
1053CompilerType ClangASTContext::GetBuiltinTypeForDWARFEncodingAndBitSize(
1054 const char *type_name, uint32_t dw_ate, uint32_t bit_size) {
1055 ASTContext *ast = getASTContext();
1056
1057#define streq(a, b)strcmp(a, b) == 0 strcmp(a, b) == 0
1058 assert(ast != nullptr)((ast != nullptr) ? static_cast<void> (0) : __assert_fail
("ast != nullptr", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 1058, __PRETTY_FUNCTION__))
;
1059 if (ast) {
1060 switch (dw_ate) {
1061 default:
1062 break;
1063
1064 case DW_ATE_address:
1065 if (QualTypeMatchesBitSize(bit_size, ast, ast->VoidPtrTy))
1066 return CompilerType(ast, ast->VoidPtrTy);
1067 break;
1068
1069 case DW_ATE_boolean:
1070 if (QualTypeMatchesBitSize(bit_size, ast, ast->BoolTy))
1071 return CompilerType(ast, ast->BoolTy);
1072 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
1073 return CompilerType(ast, ast->UnsignedCharTy);
1074 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
1075 return CompilerType(ast, ast->UnsignedShortTy);
1076 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
1077 return CompilerType(ast, ast->UnsignedIntTy);
1078 break;
1079
1080 case DW_ATE_lo_user:
1081 // This has been seen to mean DW_AT_complex_integer
1082 if (type_name) {
1083 if (::strstr(type_name, "complex")) {
1084 CompilerType complex_int_clang_type =
1085 GetBuiltinTypeForDWARFEncodingAndBitSize("int", DW_ATE_signed,
1086 bit_size / 2);
1087 return CompilerType(ast, ast->getComplexType(ClangUtil::GetQualType(
1088 complex_int_clang_type)));
1089 }
1090 }
1091 break;
1092
1093 case DW_ATE_complex_float:
1094 if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatComplexTy))
1095 return CompilerType(ast, ast->FloatComplexTy);
1096 else if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleComplexTy))
1097 return CompilerType(ast, ast->DoubleComplexTy);
1098 else if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleComplexTy))
1099 return CompilerType(ast, ast->LongDoubleComplexTy);
1100 else {
1101 CompilerType complex_float_clang_type =
1102 GetBuiltinTypeForDWARFEncodingAndBitSize("float", DW_ATE_float,
1103 bit_size / 2);
1104 return CompilerType(ast, ast->getComplexType(ClangUtil::GetQualType(
1105 complex_float_clang_type)));
1106 }
1107 break;
1108
1109 case DW_ATE_float:
1110 if (streq(type_name, "float")strcmp(type_name, "float") == 0 &&
1111 QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy))
1112 return CompilerType(ast, ast->FloatTy);
1113 if (streq(type_name, "double")strcmp(type_name, "double") == 0 &&
1114 QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy))
1115 return CompilerType(ast, ast->DoubleTy);
1116 if (streq(type_name, "long double")strcmp(type_name, "long double") == 0 &&
1117 QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy))
1118 return CompilerType(ast, ast->LongDoubleTy);
1119 // Fall back to not requiring a name match
1120 if (QualTypeMatchesBitSize(bit_size, ast, ast->FloatTy))
1121 return CompilerType(ast, ast->FloatTy);
1122 if (QualTypeMatchesBitSize(bit_size, ast, ast->DoubleTy))
1123 return CompilerType(ast, ast->DoubleTy);
1124 if (QualTypeMatchesBitSize(bit_size, ast, ast->LongDoubleTy))
1125 return CompilerType(ast, ast->LongDoubleTy);
1126 if (QualTypeMatchesBitSize(bit_size, ast, ast->HalfTy))
1127 return CompilerType(ast, ast->HalfTy);
1128 break;
1129
1130 case DW_ATE_signed:
1131 if (type_name) {
1132 if (streq(type_name, "wchar_t")strcmp(type_name, "wchar_t") == 0 &&
1133 QualTypeMatchesBitSize(bit_size, ast, ast->WCharTy) &&
1134 (getTargetInfo() &&
1135 TargetInfo::isTypeSigned(getTargetInfo()->getWCharType())))
1136 return CompilerType(ast, ast->WCharTy);
1137 if (streq(type_name, "void")strcmp(type_name, "void") == 0 &&
1138 QualTypeMatchesBitSize(bit_size, ast, ast->VoidTy))
1139 return CompilerType(ast, ast->VoidTy);
1140 if (strstr(type_name, "long long") &&
1141 QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy))
1142 return CompilerType(ast, ast->LongLongTy);
1143 if (strstr(type_name, "long") &&
1144 QualTypeMatchesBitSize(bit_size, ast, ast->LongTy))
1145 return CompilerType(ast, ast->LongTy);
1146 if (strstr(type_name, "short") &&
1147 QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy))
1148 return CompilerType(ast, ast->ShortTy);
1149 if (strstr(type_name, "char")) {
1150 if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
1151 return CompilerType(ast, ast->CharTy);
1152 if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy))
1153 return CompilerType(ast, ast->SignedCharTy);
1154 }
1155 if (strstr(type_name, "int")) {
1156 if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy))
1157 return CompilerType(ast, ast->IntTy);
1158 if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty))
1159 return CompilerType(ast, ast->Int128Ty);
1160 }
1161 }
1162 // We weren't able to match up a type name, just search by size
1163 if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
1164 return CompilerType(ast, ast->CharTy);
1165 if (QualTypeMatchesBitSize(bit_size, ast, ast->ShortTy))
1166 return CompilerType(ast, ast->ShortTy);
1167 if (QualTypeMatchesBitSize(bit_size, ast, ast->IntTy))
1168 return CompilerType(ast, ast->IntTy);
1169 if (QualTypeMatchesBitSize(bit_size, ast, ast->LongTy))
1170 return CompilerType(ast, ast->LongTy);
1171 if (QualTypeMatchesBitSize(bit_size, ast, ast->LongLongTy))
1172 return CompilerType(ast, ast->LongLongTy);
1173 if (QualTypeMatchesBitSize(bit_size, ast, ast->Int128Ty))
1174 return CompilerType(ast, ast->Int128Ty);
1175 break;
1176
1177 case DW_ATE_signed_char:
1178 if (ast->getLangOpts().CharIsSigned && type_name &&
1179 streq(type_name, "char")strcmp(type_name, "char") == 0) {
1180 if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
1181 return CompilerType(ast, ast->CharTy);
1182 }
1183 if (QualTypeMatchesBitSize(bit_size, ast, ast->SignedCharTy))
1184 return CompilerType(ast, ast->SignedCharTy);
1185 break;
1186
1187 case DW_ATE_unsigned:
1188 if (type_name) {
1189 if (streq(type_name, "wchar_t")strcmp(type_name, "wchar_t") == 0) {
1190 if (QualTypeMatchesBitSize(bit_size, ast, ast->WCharTy)) {
1191 if (!(getTargetInfo() &&
1192 TargetInfo::isTypeSigned(getTargetInfo()->getWCharType())))
1193 return CompilerType(ast, ast->WCharTy);
1194 }
1195 }
1196 if (strstr(type_name, "long long")) {
1197 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy))
1198 return CompilerType(ast, ast->UnsignedLongLongTy);
1199 } else if (strstr(type_name, "long")) {
1200 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy))
1201 return CompilerType(ast, ast->UnsignedLongTy);
1202 } else if (strstr(type_name, "short")) {
1203 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
1204 return CompilerType(ast, ast->UnsignedShortTy);
1205 } else if (strstr(type_name, "char")) {
1206 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
1207 return CompilerType(ast, ast->UnsignedCharTy);
1208 } else if (strstr(type_name, "int")) {
1209 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
1210 return CompilerType(ast, ast->UnsignedIntTy);
1211 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty))
1212 return CompilerType(ast, ast->UnsignedInt128Ty);
1213 }
1214 }
1215 // We weren't able to match up a type name, just search by size
1216 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
1217 return CompilerType(ast, ast->UnsignedCharTy);
1218 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
1219 return CompilerType(ast, ast->UnsignedShortTy);
1220 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedIntTy))
1221 return CompilerType(ast, ast->UnsignedIntTy);
1222 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongTy))
1223 return CompilerType(ast, ast->UnsignedLongTy);
1224 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedLongLongTy))
1225 return CompilerType(ast, ast->UnsignedLongLongTy);
1226 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedInt128Ty))
1227 return CompilerType(ast, ast->UnsignedInt128Ty);
1228 break;
1229
1230 case DW_ATE_unsigned_char:
1231 if (!ast->getLangOpts().CharIsSigned && type_name &&
1232 streq(type_name, "char")strcmp(type_name, "char") == 0) {
1233 if (QualTypeMatchesBitSize(bit_size, ast, ast->CharTy))
1234 return CompilerType(ast, ast->CharTy);
1235 }
1236 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedCharTy))
1237 return CompilerType(ast, ast->UnsignedCharTy);
1238 if (QualTypeMatchesBitSize(bit_size, ast, ast->UnsignedShortTy))
1239 return CompilerType(ast, ast->UnsignedShortTy);
1240 break;
1241
1242 case DW_ATE_imaginary_float:
1243 break;
1244
1245 case DW_ATE_UTF:
1246 if (type_name) {
1247 if (streq(type_name, "char16_t")strcmp(type_name, "char16_t") == 0) {
1248 return CompilerType(ast, ast->Char16Ty);
1249 } else if (streq(type_name, "char32_t")strcmp(type_name, "char32_t") == 0) {
1250 return CompilerType(ast, ast->Char32Ty);
1251 }
1252 }
1253 break;
1254 }
1255 }
1256 // This assert should fire for anything that we don't catch above so we know
1257 // to fix any issues we run into.
1258 if (type_name) {
1259 Host::SystemLog(Host::eSystemLogError, "error: need to add support for "
1260 "DW_TAG_base_type '%s' encoded with "
1261 "DW_ATE = 0x%x, bit_size = %u\n",
1262 type_name, dw_ate, bit_size);
1263 } else {
1264 Host::SystemLog(Host::eSystemLogError, "error: need to add support for "
1265 "DW_TAG_base_type encoded with "
1266 "DW_ATE = 0x%x, bit_size = %u\n",
1267 dw_ate, bit_size);
1268 }
1269 return CompilerType();
1270}
1271
1272CompilerType ClangASTContext::GetUnknownAnyType(clang::ASTContext *ast) {
1273 if (ast)
1274 return CompilerType(ast, ast->UnknownAnyTy);
1275 return CompilerType();
1276}
1277
1278CompilerType ClangASTContext::GetCStringType(bool is_const) {
1279 ASTContext *ast = getASTContext();
1280 QualType char_type(ast->CharTy);
1281
1282 if (is_const)
1283 char_type.addConst();
1284
1285 return CompilerType(ast, ast->getPointerType(char_type));
1286}
1287
1288clang::DeclContext *
1289ClangASTContext::GetTranslationUnitDecl(clang::ASTContext *ast) {
1290 return ast->getTranslationUnitDecl();
1291}
1292
1293clang::Decl *ClangASTContext::CopyDecl(ASTContext *dst_ast, ASTContext *src_ast,
1294 clang::Decl *source_decl) {
1295 FileSystemOptions file_system_options;
1296 FileManager file_manager(file_system_options);
1297 ASTImporter importer(*dst_ast, file_manager, *src_ast, file_manager, false);
1298
1299 return importer.Import(source_decl);
1300}
1301
1302bool ClangASTContext::AreTypesSame(CompilerType type1, CompilerType type2,
1303 bool ignore_qualifiers) {
1304 ClangASTContext *ast =
1305 llvm::dyn_cast_or_null<ClangASTContext>(type1.GetTypeSystem());
1306 if (!ast || ast != type2.GetTypeSystem())
1307 return false;
1308
1309 if (type1.GetOpaqueQualType() == type2.GetOpaqueQualType())
1310 return true;
1311
1312 QualType type1_qual = ClangUtil::GetQualType(type1);
1313 QualType type2_qual = ClangUtil::GetQualType(type2);
1314
1315 if (ignore_qualifiers) {
1316 type1_qual = type1_qual.getUnqualifiedType();
1317 type2_qual = type2_qual.getUnqualifiedType();
1318 }
1319
1320 return ast->getASTContext()->hasSameType(type1_qual, type2_qual);
1321}
1322
1323CompilerType ClangASTContext::GetTypeForDecl(clang::NamedDecl *decl) {
1324 if (clang::ObjCInterfaceDecl *interface_decl =
1325 llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl))
1326 return GetTypeForDecl(interface_decl);
1327 if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl))
1328 return GetTypeForDecl(tag_decl);
1329 return CompilerType();
1330}
1331
1332CompilerType ClangASTContext::GetTypeForDecl(TagDecl *decl) {
1333 // No need to call the getASTContext() accessor (which can create the AST if
1334 // it isn't created yet, because we can't have created a decl in this
1335 // AST if our AST didn't already exist...
1336 ASTContext *ast = &decl->getASTContext();
1337 if (ast)
1338 return CompilerType(ast, ast->getTagDeclType(decl));
1339 return CompilerType();
1340}
1341
1342CompilerType ClangASTContext::GetTypeForDecl(ObjCInterfaceDecl *decl) {
1343 // No need to call the getASTContext() accessor (which can create the AST if
1344 // it isn't created yet, because we can't have created a decl in this
1345 // AST if our AST didn't already exist...
1346 ASTContext *ast = &decl->getASTContext();
1347 if (ast)
1348 return CompilerType(ast, ast->getObjCInterfaceType(decl));
1349 return CompilerType();
1350}
1351
1352#pragma mark Structure, Unions, Classes
1353
1354CompilerType ClangASTContext::CreateRecordType(DeclContext *decl_ctx,
1355 AccessType access_type,
1356 const char *name, int kind,
1357 LanguageType language,
1358 ClangASTMetadata *metadata) {
1359 ASTContext *ast = getASTContext();
1360 assert(ast != nullptr)((ast != nullptr) ? static_cast<void> (0) : __assert_fail
("ast != nullptr", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 1360, __PRETTY_FUNCTION__))
;
1361
1362 if (decl_ctx == nullptr)
1363 decl_ctx = ast->getTranslationUnitDecl();
1364
1365 if (language == eLanguageTypeObjC ||
1366 language == eLanguageTypeObjC_plus_plus) {
1367 bool isForwardDecl = true;
1368 bool isInternal = false;
1369 return CreateObjCClass(name, decl_ctx, isForwardDecl, isInternal, metadata);
1370 }
1371
1372 // NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and
1373 // we will need to update this code. I was told to currently always use the
1374 // CXXRecordDecl class since we often don't know from debug information if
1375 // something is struct or a class, so we default to always use the more
1376 // complete definition just in case.
1377
1378 bool is_anonymous = (!name) || (!name[0]);
1379
1380 CXXRecordDecl *decl = CXXRecordDecl::Create(
1381 *ast, (TagDecl::TagKind)kind, decl_ctx, SourceLocation(),
1382 SourceLocation(), is_anonymous ? nullptr : &ast->Idents.get(name));
1383
1384 if (is_anonymous)
1385 decl->setAnonymousStructOrUnion(true);
1386
1387 if (decl) {
1388 if (metadata)
1389 SetMetadata(ast, decl, *metadata);
1390
1391 if (access_type != eAccessNone)
1392 decl->setAccess(ConvertAccessTypeToAccessSpecifier(access_type));
1393
1394 if (decl_ctx)
1395 decl_ctx->addDecl(decl);
1396
1397 return CompilerType(ast, ast->getTagDeclType(decl));
1398 }
1399 return CompilerType();
1400}
1401
1402namespace {
1403 bool IsValueParam(const clang::TemplateArgument &argument) {
1404 return argument.getKind() == TemplateArgument::Integral;
1405 }
1406}
1407
1408static TemplateParameterList *CreateTemplateParameterList(
1409 ASTContext *ast,
1410 const ClangASTContext::TemplateParameterInfos &template_param_infos,
1411 llvm::SmallVector<NamedDecl *, 8> &template_param_decls) {
1412 const bool parameter_pack = false;
1413 const bool is_typename = false;
1414 const unsigned depth = 0;
1415 const size_t num_template_params = template_param_infos.args.size();
1416 DeclContext *const decl_context =
1417 ast->getTranslationUnitDecl(); // Is this the right decl context?,
1418 for (size_t i = 0; i < num_template_params; ++i) {
1419 const char *name = template_param_infos.names[i];
1420
1421 IdentifierInfo *identifier_info = nullptr;
1422 if (name && name[0])
1423 identifier_info = &ast->Idents.get(name);
1424 if (IsValueParam(template_param_infos.args[i])) {
1425 template_param_decls.push_back(NonTypeTemplateParmDecl::Create(
1426 *ast, decl_context,
1427 SourceLocation(), SourceLocation(), depth, i, identifier_info,
1428 template_param_infos.args[i].getIntegralType(), parameter_pack,
1429 nullptr));
1430
1431 } else {
1432 template_param_decls.push_back(TemplateTypeParmDecl::Create(
1433 *ast, decl_context,
1434 SourceLocation(), SourceLocation(), depth, i, identifier_info,
1435 is_typename, parameter_pack));
1436 }
1437 }
1438
1439 if (template_param_infos.packed_args &&
1440 template_param_infos.packed_args->args.size()) {
1441 IdentifierInfo *identifier_info = nullptr;
1442 if (template_param_infos.pack_name && template_param_infos.pack_name[0])
1443 identifier_info = &ast->Idents.get(template_param_infos.pack_name);
1444 const bool parameter_pack_true = true;
1445 if (IsValueParam(template_param_infos.packed_args->args[0])) {
1446 template_param_decls.push_back(NonTypeTemplateParmDecl::Create(
1447 *ast, decl_context,
1448 SourceLocation(), SourceLocation(), depth, num_template_params,
1449 identifier_info,
1450 template_param_infos.packed_args->args[0].getIntegralType(),
1451 parameter_pack_true, nullptr));
1452 } else {
1453 template_param_decls.push_back(TemplateTypeParmDecl::Create(
1454 *ast, decl_context,
1455 SourceLocation(), SourceLocation(), depth, num_template_params,
1456 identifier_info,
1457 is_typename, parameter_pack_true));
1458 }
1459 }
1460 clang::Expr *const requires_clause = nullptr; // TODO: Concepts
1461 TemplateParameterList *template_param_list = TemplateParameterList::Create(
1462 *ast, SourceLocation(), SourceLocation(), template_param_decls,
1463 SourceLocation(), requires_clause);
1464 return template_param_list;
1465}
1466
1467clang::FunctionTemplateDecl *ClangASTContext::CreateFunctionTemplateDecl(
1468 clang::DeclContext *decl_ctx, clang::FunctionDecl *func_decl,
1469 const char *name, const TemplateParameterInfos &template_param_infos) {
1470 // /// Create a function template node.
1471 ASTContext *ast = getASTContext();
1472
1473 llvm::SmallVector<NamedDecl *, 8> template_param_decls;
1474
1475 TemplateParameterList *template_param_list = CreateTemplateParameterList(
1476 ast, template_param_infos, template_param_decls);
1477 FunctionTemplateDecl *func_tmpl_decl = FunctionTemplateDecl::Create(
1478 *ast, decl_ctx, func_decl->getLocation(), func_decl->getDeclName(),
1479 template_param_list, func_decl);
1480
1481 for (size_t i = 0, template_param_decl_count = template_param_decls.size();
1482 i < template_param_decl_count; ++i) {
1483 // TODO: verify which decl context we should put template_param_decls into..
1484 template_param_decls[i]->setDeclContext(func_decl);
1485 }
1486
1487 return func_tmpl_decl;
1488}
1489
1490void ClangASTContext::CreateFunctionTemplateSpecializationInfo(
1491 FunctionDecl *func_decl, clang::FunctionTemplateDecl *func_tmpl_decl,
1492 const TemplateParameterInfos &infos) {
1493 TemplateArgumentList template_args(TemplateArgumentList::OnStack, infos.args);
1494
1495 func_decl->setFunctionTemplateSpecialization(func_tmpl_decl, &template_args,
1496 nullptr);
1497}
1498
1499ClassTemplateDecl *ClangASTContext::CreateClassTemplateDecl(
1500 DeclContext *decl_ctx, lldb::AccessType access_type, const char *class_name,
1501 int kind, const TemplateParameterInfos &template_param_infos) {
1502 ASTContext *ast = getASTContext();
1503
1504 ClassTemplateDecl *class_template_decl = nullptr;
1505 if (decl_ctx == nullptr)
1506 decl_ctx = ast->getTranslationUnitDecl();
1507
1508 IdentifierInfo &identifier_info = ast->Idents.get(class_name);
1509 DeclarationName decl_name(&identifier_info);
1510
1511 clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name);
1512
1513 for (NamedDecl *decl : result) {
1514 class_template_decl = dyn_cast<clang::ClassTemplateDecl>(decl);
1515 if (class_template_decl)
1516 return class_template_decl;
1517 }
1518
1519 llvm::SmallVector<NamedDecl *, 8> template_param_decls;
1520
1521 TemplateParameterList *template_param_list = CreateTemplateParameterList(
1522 ast, template_param_infos, template_param_decls);
1523
1524 CXXRecordDecl *template_cxx_decl = CXXRecordDecl::Create(
1525 *ast, (TagDecl::TagKind)kind,
1526 decl_ctx, // What decl context do we use here? TU? The actual decl
1527 // context?
1528 SourceLocation(), SourceLocation(), &identifier_info);
1529
1530 for (size_t i = 0, template_param_decl_count = template_param_decls.size();
1531 i < template_param_decl_count; ++i) {
1532 template_param_decls[i]->setDeclContext(template_cxx_decl);
1533 }
1534
1535 // With templated classes, we say that a class is templated with
1536 // specializations, but that the bare class has no functions.
1537 // template_cxx_decl->startDefinition();
1538 // template_cxx_decl->completeDefinition();
1539
1540 class_template_decl = ClassTemplateDecl::Create(
1541 *ast,
1542 decl_ctx, // What decl context do we use here? TU? The actual decl
1543 // context?
1544 SourceLocation(), decl_name, template_param_list, template_cxx_decl);
1545
1546 if (class_template_decl) {
1547 if (access_type != eAccessNone)
1548 class_template_decl->setAccess(
1549 ConvertAccessTypeToAccessSpecifier(access_type));
1550
1551 // if (TagDecl *ctx_tag_decl = dyn_cast<TagDecl>(decl_ctx))
1552 // CompleteTagDeclarationDefinition(GetTypeForDecl(ctx_tag_decl));
1553
1554 decl_ctx->addDecl(class_template_decl);
1555
1556#ifdef LLDB_CONFIGURATION_DEBUG
1557 VerifyDecl(class_template_decl);
1558#endif
1559 }
1560
1561 return class_template_decl;
1562}
1563
1564TemplateTemplateParmDecl *
1565ClangASTContext::CreateTemplateTemplateParmDecl(const char *template_name) {
1566 ASTContext *ast = getASTContext();
1567
1568 auto *decl_ctx = ast->getTranslationUnitDecl();
1569
1570 IdentifierInfo &identifier_info = ast->Idents.get(template_name);
1571 llvm::SmallVector<NamedDecl *, 8> template_param_decls;
1572
1573 ClangASTContext::TemplateParameterInfos template_param_infos;
1574 TemplateParameterList *template_param_list = CreateTemplateParameterList(
1575 ast, template_param_infos, template_param_decls);
1576
1577 // LLDB needs to create those decls only to be able to display a
1578 // type that includes a template template argument. Only the name matters for
1579 // this purpose, so we use dummy values for the other characterisitcs of the
1580 // type.
1581 return TemplateTemplateParmDecl::Create(
1582 *ast, decl_ctx, SourceLocation(),
1583 /*Depth*/ 0, /*Position*/ 0,
1584 /*IsParameterPack*/ false, &identifier_info, template_param_list);
1585}
1586
1587ClassTemplateSpecializationDecl *
1588ClangASTContext::CreateClassTemplateSpecializationDecl(
1589 DeclContext *decl_ctx, ClassTemplateDecl *class_template_decl, int kind,
1590 const TemplateParameterInfos &template_param_infos) {
1591 ASTContext *ast = getASTContext();
1592 llvm::SmallVector<clang::TemplateArgument, 2> args(
1593 template_param_infos.args.size() +
1594 (template_param_infos.packed_args ? 1 : 0));
1595 std::copy(template_param_infos.args.begin(), template_param_infos.args.end(),
1596 args.begin());
1597 if (template_param_infos.packed_args) {
1598 args[args.size() - 1] = TemplateArgument::CreatePackCopy(
1599 *ast, template_param_infos.packed_args->args);
1600 }
1601 ClassTemplateSpecializationDecl *class_template_specialization_decl =
1602 ClassTemplateSpecializationDecl::Create(
1603 *ast, (TagDecl::TagKind)kind, decl_ctx, SourceLocation(),
1604 SourceLocation(), class_template_decl, args,
1605 nullptr);
1606
1607 class_template_specialization_decl->setSpecializationKind(
1608 TSK_ExplicitSpecialization);
1609
1610 return class_template_specialization_decl;
1611}
1612
1613CompilerType ClangASTContext::CreateClassTemplateSpecializationType(
1614 ClassTemplateSpecializationDecl *class_template_specialization_decl) {
1615 if (class_template_specialization_decl) {
1616 ASTContext *ast = getASTContext();
1617 if (ast)
1618 return CompilerType(
1619 ast, ast->getTagDeclType(class_template_specialization_decl));
1620 }
1621 return CompilerType();
1622}
1623
1624static inline bool check_op_param(bool is_method,
1625 clang::OverloadedOperatorKind op_kind,
1626 bool unary, bool binary,
1627 uint32_t num_params) {
1628 // Special-case call since it can take any number of operands
1629 if (op_kind == OO_Call)
1630 return true;
1631
1632 // The parameter count doesn't include "this"
1633 if (is_method)
1634 ++num_params;
1635 if (num_params == 1)
1636 return unary;
1637 if (num_params == 2)
1638 return binary;
1639 else
1640 return false;
1641}
1642
1643bool ClangASTContext::CheckOverloadedOperatorKindParameterCount(
1644 bool is_method, clang::OverloadedOperatorKind op_kind,
1645 uint32_t num_params) {
1646 switch (op_kind) {
1647 default:
1648 break;
1649 // C++ standard allows any number of arguments to new/delete
1650 case OO_New:
1651 case OO_Array_New:
1652 case OO_Delete:
1653 case OO_Array_Delete:
1654 return true;
1655 }
1656
1657#define OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly) \
1658 case OO_##Name: \
1659 return check_op_param(is_method, op_kind, Unary, Binary, num_params);
1660 switch (op_kind) {
1661#include "clang/Basic/OperatorKinds.def"
1662 default:
1663 break;
1664 }
1665 return false;
1666}
1667
1668clang::AccessSpecifier
1669ClangASTContext::UnifyAccessSpecifiers(clang::AccessSpecifier lhs,
1670 clang::AccessSpecifier rhs) {
1671 // Make the access equal to the stricter of the field and the nested field's
1672 // access
1673 if (lhs == AS_none || rhs == AS_none)
1674 return AS_none;
1675 if (lhs == AS_private || rhs == AS_private)
1676 return AS_private;
1677 if (lhs == AS_protected || rhs == AS_protected)
1678 return AS_protected;
1679 return AS_public;
1680}
1681
1682bool ClangASTContext::FieldIsBitfield(FieldDecl *field,
1683 uint32_t &bitfield_bit_size) {
1684 return FieldIsBitfield(getASTContext(), field, bitfield_bit_size);
1685}
1686
1687bool ClangASTContext::FieldIsBitfield(ASTContext *ast, FieldDecl *field,
1688 uint32_t &bitfield_bit_size) {
1689 if (ast == nullptr || field == nullptr)
1690 return false;
1691
1692 if (field->isBitField()) {
1693 Expr *bit_width_expr = field->getBitWidth();
1694 if (bit_width_expr) {
1695 llvm::APSInt bit_width_apsint;
1696 if (bit_width_expr->isIntegerConstantExpr(bit_width_apsint, *ast)) {
1697 bitfield_bit_size = bit_width_apsint.getLimitedValue(UINT32_MAX(4294967295U));
1698 return true;
1699 }
1700 }
1701 }
1702 return false;
1703}
1704
1705bool ClangASTContext::RecordHasFields(const RecordDecl *record_decl) {
1706 if (record_decl == nullptr)
1707 return false;
1708
1709 if (!record_decl->field_empty())
1710 return true;
1711
1712 // No fields, lets check this is a CXX record and check the base classes
1713 const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
1714 if (cxx_record_decl) {
1715 CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
1716 for (base_class = cxx_record_decl->bases_begin(),
1717 base_class_end = cxx_record_decl->bases_end();
1718 base_class != base_class_end; ++base_class) {
1719 const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>(
1720 base_class->getType()->getAs<RecordType>()->getDecl());
1721 if (RecordHasFields(base_class_decl))
1722 return true;
1723 }
1724 }
1725 return false;
1726}
1727
1728#pragma mark Objective-C Classes
1729
1730CompilerType ClangASTContext::CreateObjCClass(const char *name,
1731 DeclContext *decl_ctx,
1732 bool isForwardDecl,
1733 bool isInternal,
1734 ClangASTMetadata *metadata) {
1735 ASTContext *ast = getASTContext();
1736 assert(ast != nullptr)((ast != nullptr) ? static_cast<void> (0) : __assert_fail
("ast != nullptr", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 1736, __PRETTY_FUNCTION__))
;
1737 assert(name && name[0])((name && name[0]) ? static_cast<void> (0) : __assert_fail
("name && name[0]", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 1737, __PRETTY_FUNCTION__))
;
1738 if (decl_ctx == nullptr)
1739 decl_ctx = ast->getTranslationUnitDecl();
1740
1741 ObjCInterfaceDecl *decl = ObjCInterfaceDecl::Create(
1742 *ast, decl_ctx, SourceLocation(), &ast->Idents.get(name), nullptr,
1743 nullptr, SourceLocation(),
1744 /*isForwardDecl,*/
1745 isInternal);
1746
1747 if (decl && metadata)
1748 SetMetadata(ast, decl, *metadata);
1749
1750 return CompilerType(ast, ast->getObjCInterfaceType(decl));
1751}
1752
1753static inline bool BaseSpecifierIsEmpty(const CXXBaseSpecifier *b) {
1754 return ClangASTContext::RecordHasFields(b->getType()->getAsCXXRecordDecl()) ==
1755 false;
1756}
1757
1758uint32_t
1759ClangASTContext::GetNumBaseClasses(const CXXRecordDecl *cxx_record_decl,
1760 bool omit_empty_base_classes) {
1761 uint32_t num_bases = 0;
1762 if (cxx_record_decl) {
1763 if (omit_empty_base_classes) {
1764 CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
1765 for (base_class = cxx_record_decl->bases_begin(),
1766 base_class_end = cxx_record_decl->bases_end();
1767 base_class != base_class_end; ++base_class) {
1768 // Skip empty base classes
1769 if (omit_empty_base_classes) {
1770 if (BaseSpecifierIsEmpty(base_class))
1771 continue;
1772 }
1773 ++num_bases;
1774 }
1775 } else
1776 num_bases = cxx_record_decl->getNumBases();
1777 }
1778 return num_bases;
1779}
1780
1781#pragma mark Namespace Declarations
1782
1783NamespaceDecl *
1784ClangASTContext::GetUniqueNamespaceDeclaration(const char *name,
1785 DeclContext *decl_ctx) {
1786 NamespaceDecl *namespace_decl = nullptr;
1787 ASTContext *ast = getASTContext();
1788 TranslationUnitDecl *translation_unit_decl = ast->getTranslationUnitDecl();
1789 if (decl_ctx == nullptr)
1790 decl_ctx = translation_unit_decl;
1791
1792 if (name) {
1793 IdentifierInfo &identifier_info = ast->Idents.get(name);
1794 DeclarationName decl_name(&identifier_info);
1795 clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name);
1796 for (NamedDecl *decl : result) {
1797 namespace_decl = dyn_cast<clang::NamespaceDecl>(decl);
1798 if (namespace_decl)
1799 return namespace_decl;
1800 }
1801
1802 namespace_decl =
1803 NamespaceDecl::Create(*ast, decl_ctx, false, SourceLocation(),
1804 SourceLocation(), &identifier_info, nullptr);
1805
1806 decl_ctx->addDecl(namespace_decl);
1807 } else {
1808 if (decl_ctx == translation_unit_decl) {
1809 namespace_decl = translation_unit_decl->getAnonymousNamespace();
1810 if (namespace_decl)
1811 return namespace_decl;
1812
1813 namespace_decl =
1814 NamespaceDecl::Create(*ast, decl_ctx, false, SourceLocation(),
1815 SourceLocation(), nullptr, nullptr);
1816 translation_unit_decl->setAnonymousNamespace(namespace_decl);
1817 translation_unit_decl->addDecl(namespace_decl);
1818 assert(namespace_decl == translation_unit_decl->getAnonymousNamespace())((namespace_decl == translation_unit_decl->getAnonymousNamespace
()) ? static_cast<void> (0) : __assert_fail ("namespace_decl == translation_unit_decl->getAnonymousNamespace()"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 1818, __PRETTY_FUNCTION__))
;
1819 } else {
1820 NamespaceDecl *parent_namespace_decl = cast<NamespaceDecl>(decl_ctx);
1821 if (parent_namespace_decl) {
1822 namespace_decl = parent_namespace_decl->getAnonymousNamespace();
1823 if (namespace_decl)
1824 return namespace_decl;
1825 namespace_decl =
1826 NamespaceDecl::Create(*ast, decl_ctx, false, SourceLocation(),
1827 SourceLocation(), nullptr, nullptr);
1828 parent_namespace_decl->setAnonymousNamespace(namespace_decl);
1829 parent_namespace_decl->addDecl(namespace_decl);
1830 assert(namespace_decl ==((namespace_decl == parent_namespace_decl->getAnonymousNamespace
()) ? static_cast<void> (0) : __assert_fail ("namespace_decl == parent_namespace_decl->getAnonymousNamespace()"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 1831, __PRETTY_FUNCTION__))
1831 parent_namespace_decl->getAnonymousNamespace())((namespace_decl == parent_namespace_decl->getAnonymousNamespace
()) ? static_cast<void> (0) : __assert_fail ("namespace_decl == parent_namespace_decl->getAnonymousNamespace()"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 1831, __PRETTY_FUNCTION__))
;
1832 } else {
1833 // BAD!!!
1834 }
1835 }
1836 }
1837#ifdef LLDB_CONFIGURATION_DEBUG
1838 VerifyDecl(namespace_decl);
1839#endif
1840 return namespace_decl;
1841}
1842
1843NamespaceDecl *ClangASTContext::GetUniqueNamespaceDeclaration(
1844 clang::ASTContext *ast, const char *name, clang::DeclContext *decl_ctx) {
1845 ClangASTContext *ast_ctx = ClangASTContext::GetASTContext(ast);
1846 if (ast_ctx == nullptr)
1847 return nullptr;
1848
1849 return ast_ctx->GetUniqueNamespaceDeclaration(name, decl_ctx);
1850}
1851
1852clang::BlockDecl *
1853ClangASTContext::CreateBlockDeclaration(clang::DeclContext *ctx) {
1854 if (ctx != nullptr) {
1855 clang::BlockDecl *decl = clang::BlockDecl::Create(*getASTContext(), ctx,
1856 clang::SourceLocation());
1857 ctx->addDecl(decl);
1858 return decl;
1859 }
1860 return nullptr;
1861}
1862
1863clang::DeclContext *FindLCABetweenDecls(clang::DeclContext *left,
1864 clang::DeclContext *right,
1865 clang::DeclContext *root) {
1866 if (root == nullptr)
1867 return nullptr;
1868
1869 std::set<clang::DeclContext *> path_left;
1870 for (clang::DeclContext *d = left; d != nullptr; d = d->getParent())
1871 path_left.insert(d);
1872
1873 for (clang::DeclContext *d = right; d != nullptr; d = d->getParent())
1874 if (path_left.find(d) != path_left.end())
1875 return d;
1876
1877 return nullptr;
1878}
1879
1880clang::UsingDirectiveDecl *ClangASTContext::CreateUsingDirectiveDeclaration(
1881 clang::DeclContext *decl_ctx, clang::NamespaceDecl *ns_decl) {
1882 if (decl_ctx != nullptr && ns_decl != nullptr) {
1883 clang::TranslationUnitDecl *translation_unit =
1884 (clang::TranslationUnitDecl *)GetTranslationUnitDecl(getASTContext());
1885 clang::UsingDirectiveDecl *using_decl = clang::UsingDirectiveDecl::Create(
1886 *getASTContext(), decl_ctx, clang::SourceLocation(),
1887 clang::SourceLocation(), clang::NestedNameSpecifierLoc(),
1888 clang::SourceLocation(), ns_decl,
1889 FindLCABetweenDecls(decl_ctx, ns_decl, translation_unit));
1890 decl_ctx->addDecl(using_decl);
1891 return using_decl;
1892 }
1893 return nullptr;
1894}
1895
1896clang::UsingDecl *
1897ClangASTContext::CreateUsingDeclaration(clang::DeclContext *current_decl_ctx,
1898 clang::NamedDecl *target) {
1899 if (current_decl_ctx != nullptr && target != nullptr) {
1900 clang::UsingDecl *using_decl = clang::UsingDecl::Create(
1901 *getASTContext(), current_decl_ctx, clang::SourceLocation(),
1902 clang::NestedNameSpecifierLoc(), clang::DeclarationNameInfo(), false);
1903 clang::UsingShadowDecl *shadow_decl = clang::UsingShadowDecl::Create(
1904 *getASTContext(), current_decl_ctx, clang::SourceLocation(), using_decl,
1905 target);
1906 using_decl->addShadowDecl(shadow_decl);
1907 current_decl_ctx->addDecl(using_decl);
1908 return using_decl;
1909 }
1910 return nullptr;
1911}
1912
1913clang::VarDecl *ClangASTContext::CreateVariableDeclaration(
1914 clang::DeclContext *decl_context, const char *name, clang::QualType type) {
1915 if (decl_context != nullptr) {
1
Assuming the condition is true
2
Taking true branch
1916 clang::VarDecl *var_decl = clang::VarDecl::Create(
35
Forming reference to null pointer
1917 *getASTContext(), decl_context, clang::SourceLocation(),
3
Calling 'ClangASTContext::getASTContext'
30
Returning from 'ClangASTContext::getASTContext'
1918 clang::SourceLocation(),
1919 name && name[0] ? &getASTContext()->Idents.getOwn(name) : nullptr, type,
31
Assuming 'name' is non-null
32
Assigning value
33
Assuming the condition is true
34
'?' condition is true
1920 nullptr, clang::SC_None);
1921 var_decl->setAccess(clang::AS_public);
1922 decl_context->addDecl(var_decl);
1923 return var_decl;
1924 }
1925 return nullptr;
1926}
1927
1928lldb::opaque_compiler_type_t
1929ClangASTContext::GetOpaqueCompilerType(clang::ASTContext *ast,
1930 lldb::BasicType basic_type) {
1931 switch (basic_type) {
1932 case eBasicTypeVoid:
1933 return ast->VoidTy.getAsOpaquePtr();
1934 case eBasicTypeChar:
1935 return ast->CharTy.getAsOpaquePtr();
1936 case eBasicTypeSignedChar:
1937 return ast->SignedCharTy.getAsOpaquePtr();
1938 case eBasicTypeUnsignedChar:
1939 return ast->UnsignedCharTy.getAsOpaquePtr();
1940 case eBasicTypeWChar:
1941 return ast->getWCharType().getAsOpaquePtr();
1942 case eBasicTypeSignedWChar:
1943 return ast->getSignedWCharType().getAsOpaquePtr();
1944 case eBasicTypeUnsignedWChar:
1945 return ast->getUnsignedWCharType().getAsOpaquePtr();
1946 case eBasicTypeChar16:
1947 return ast->Char16Ty.getAsOpaquePtr();
1948 case eBasicTypeChar32:
1949 return ast->Char32Ty.getAsOpaquePtr();
1950 case eBasicTypeShort:
1951 return ast->ShortTy.getAsOpaquePtr();
1952 case eBasicTypeUnsignedShort:
1953 return ast->UnsignedShortTy.getAsOpaquePtr();
1954 case eBasicTypeInt:
1955 return ast->IntTy.getAsOpaquePtr();
1956 case eBasicTypeUnsignedInt:
1957 return ast->UnsignedIntTy.getAsOpaquePtr();
1958 case eBasicTypeLong:
1959 return ast->LongTy.getAsOpaquePtr();
1960 case eBasicTypeUnsignedLong:
1961 return ast->UnsignedLongTy.getAsOpaquePtr();
1962 case eBasicTypeLongLong:
1963 return ast->LongLongTy.getAsOpaquePtr();
1964 case eBasicTypeUnsignedLongLong:
1965 return ast->UnsignedLongLongTy.getAsOpaquePtr();
1966 case eBasicTypeInt128:
1967 return ast->Int128Ty.getAsOpaquePtr();
1968 case eBasicTypeUnsignedInt128:
1969 return ast->UnsignedInt128Ty.getAsOpaquePtr();
1970 case eBasicTypeBool:
1971 return ast->BoolTy.getAsOpaquePtr();
1972 case eBasicTypeHalf:
1973 return ast->HalfTy.getAsOpaquePtr();
1974 case eBasicTypeFloat:
1975 return ast->FloatTy.getAsOpaquePtr();
1976 case eBasicTypeDouble:
1977 return ast->DoubleTy.getAsOpaquePtr();
1978 case eBasicTypeLongDouble:
1979 return ast->LongDoubleTy.getAsOpaquePtr();
1980 case eBasicTypeFloatComplex:
1981 return ast->FloatComplexTy.getAsOpaquePtr();
1982 case eBasicTypeDoubleComplex:
1983 return ast->DoubleComplexTy.getAsOpaquePtr();
1984 case eBasicTypeLongDoubleComplex:
1985 return ast->LongDoubleComplexTy.getAsOpaquePtr();
1986 case eBasicTypeObjCID:
1987 return ast->getObjCIdType().getAsOpaquePtr();
1988 case eBasicTypeObjCClass:
1989 return ast->getObjCClassType().getAsOpaquePtr();
1990 case eBasicTypeObjCSel:
1991 return ast->getObjCSelType().getAsOpaquePtr();
1992 case eBasicTypeNullPtr:
1993 return ast->NullPtrTy.getAsOpaquePtr();
1994 default:
1995 return nullptr;
1996 }
1997}
1998
1999#pragma mark Function Types
2000
2001clang::DeclarationName
2002ClangASTContext::GetDeclarationName(const char *name,
2003 const CompilerType &function_clang_type) {
2004 if (!name || !name[0])
2005 return clang::DeclarationName();
2006
2007 clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS;
2008 if (!IsOperator(name, op_kind) || op_kind == clang::NUM_OVERLOADED_OPERATORS)
2009 return DeclarationName(&getASTContext()->Idents.get(
2010 name)); // Not operator, but a regular function.
2011
2012 // Check the number of operator parameters. Sometimes we have seen bad DWARF
2013 // that doesn't correctly describe operators and if we try to create a method
2014 // and add it to the class, clang will assert and crash, so we need to make
2015 // sure things are acceptable.
2016 clang::QualType method_qual_type(ClangUtil::GetQualType(function_clang_type));
2017 const clang::FunctionProtoType *function_type =
2018 llvm::dyn_cast<clang::FunctionProtoType>(method_qual_type.getTypePtr());
2019 if (function_type == nullptr)
2020 return clang::DeclarationName();
2021
2022 const bool is_method = false;
2023 const unsigned int num_params = function_type->getNumParams();
2024 if (!ClangASTContext::CheckOverloadedOperatorKindParameterCount(
2025 is_method, op_kind, num_params))
2026 return clang::DeclarationName();
2027
2028 return getASTContext()->DeclarationNames.getCXXOperatorName(op_kind);
2029}
2030
2031FunctionDecl *ClangASTContext::CreateFunctionDeclaration(
2032 DeclContext *decl_ctx, const char *name,
2033 const CompilerType &function_clang_type, int storage, bool is_inline) {
2034 FunctionDecl *func_decl = nullptr;
2035 ASTContext *ast = getASTContext();
2036 if (decl_ctx == nullptr)
2037 decl_ctx = ast->getTranslationUnitDecl();
2038
2039 const bool hasWrittenPrototype = true;
2040 const bool isConstexprSpecified = false;
2041
2042 clang::DeclarationName declarationName =
2043 GetDeclarationName(name, function_clang_type);
2044 func_decl = FunctionDecl::Create(
2045 *ast, decl_ctx, SourceLocation(), SourceLocation(), declarationName,
2046 ClangUtil::GetQualType(function_clang_type), nullptr,
2047 (clang::StorageClass)storage, is_inline, hasWrittenPrototype,
2048 isConstexprSpecified);
2049 if (func_decl)
2050 decl_ctx->addDecl(func_decl);
2051
2052#ifdef LLDB_CONFIGURATION_DEBUG
2053 VerifyDecl(func_decl);
2054#endif
2055
2056 return func_decl;
2057}
2058
2059CompilerType ClangASTContext::CreateFunctionType(
2060 ASTContext *ast, const CompilerType &result_type, const CompilerType *args,
2061 unsigned num_args, bool is_variadic, unsigned type_quals,
2062 clang::CallingConv cc) {
2063 if (ast == nullptr)
2064 return CompilerType(); // invalid AST
2065
2066 if (!result_type || !ClangUtil::IsClangType(result_type))
2067 return CompilerType(); // invalid return type
2068
2069 std::vector<QualType> qual_type_args;
2070 if (num_args > 0 && args == nullptr)
2071 return CompilerType(); // invalid argument array passed in
2072
2073 // Verify that all arguments are valid and the right type
2074 for (unsigned i = 0; i < num_args; ++i) {
2075 if (args[i]) {
2076 // Make sure we have a clang type in args[i] and not a type from another
2077 // language whose name might match
2078 const bool is_clang_type = ClangUtil::IsClangType(args[i]);
2079 lldbassert(is_clang_type)lldb_private::lldb_assert(static_cast<bool>(is_clang_type
), "is_clang_type", __FUNCTION__, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 2079)
;
2080 if (is_clang_type)
2081 qual_type_args.push_back(ClangUtil::GetQualType(args[i]));
2082 else
2083 return CompilerType(); // invalid argument type (must be a clang type)
2084 } else
2085 return CompilerType(); // invalid argument type (empty)
2086 }
2087
2088 // TODO: Detect calling convention in DWARF?
2089 FunctionProtoType::ExtProtoInfo proto_info;
2090 proto_info.ExtInfo = cc;
2091 proto_info.Variadic = is_variadic;
2092 proto_info.ExceptionSpec = EST_None;
2093 proto_info.TypeQuals = type_quals;
2094 proto_info.RefQualifier = RQ_None;
2095
2096 return CompilerType(ast,
2097 ast->getFunctionType(ClangUtil::GetQualType(result_type),
2098 qual_type_args, proto_info));
2099}
2100
2101ParmVarDecl *ClangASTContext::CreateParameterDeclaration(
2102 const char *name, const CompilerType &param_type, int storage) {
2103 ASTContext *ast = getASTContext();
2104 assert(ast != nullptr)((ast != nullptr) ? static_cast<void> (0) : __assert_fail
("ast != nullptr", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 2104, __PRETTY_FUNCTION__))
;
2105 return ParmVarDecl::Create(*ast, ast->getTranslationUnitDecl(),
2106 SourceLocation(), SourceLocation(),
2107 name && name[0] ? &ast->Idents.get(name) : nullptr,
2108 ClangUtil::GetQualType(param_type), nullptr,
2109 (clang::StorageClass)storage, nullptr);
2110}
2111
2112void ClangASTContext::SetFunctionParameters(FunctionDecl *function_decl,
2113 ParmVarDecl **params,
2114 unsigned num_params) {
2115 if (function_decl)
2116 function_decl->setParams(ArrayRef<ParmVarDecl *>(params, num_params));
2117}
2118
2119CompilerType
2120ClangASTContext::CreateBlockPointerType(const CompilerType &function_type) {
2121 QualType block_type = m_ast_ap->getBlockPointerType(
2122 clang::QualType::getFromOpaquePtr(function_type.GetOpaqueQualType()));
2123
2124 return CompilerType(this, block_type.getAsOpaquePtr());
2125}
2126
2127#pragma mark Array Types
2128
2129CompilerType ClangASTContext::CreateArrayType(const CompilerType &element_type,
2130 size_t element_count,
2131 bool is_vector) {
2132 if (element_type.IsValid()) {
2133 ASTContext *ast = getASTContext();
2134 assert(ast != nullptr)((ast != nullptr) ? static_cast<void> (0) : __assert_fail
("ast != nullptr", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 2134, __PRETTY_FUNCTION__))
;
2135
2136 if (is_vector) {
2137 return CompilerType(
2138 ast, ast->getExtVectorType(ClangUtil::GetQualType(element_type),
2139 element_count));
2140 } else {
2141
2142 llvm::APInt ap_element_count(64, element_count);
2143 if (element_count == 0) {
2144 return CompilerType(ast, ast->getIncompleteArrayType(
2145 ClangUtil::GetQualType(element_type),
2146 clang::ArrayType::Normal, 0));
2147 } else {
2148 return CompilerType(
2149 ast, ast->getConstantArrayType(ClangUtil::GetQualType(element_type),
2150 ap_element_count,
2151 clang::ArrayType::Normal, 0));
2152 }
2153 }
2154 }
2155 return CompilerType();
2156}
2157
2158CompilerType ClangASTContext::CreateStructForIdentifier(
2159 const ConstString &type_name,
2160 const std::initializer_list<std::pair<const char *, CompilerType>>
2161 &type_fields,
2162 bool packed) {
2163 CompilerType type;
2164 if (!type_name.IsEmpty() &&
2165 (type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name))
2166 .IsValid()) {
2167 lldbassert(0 && "Trying to create a type for an existing name")lldb_private::lldb_assert(static_cast<bool>(0 &&
"Trying to create a type for an existing name"), "0 && \"Trying to create a type for an existing name\""
, __FUNCTION__, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 2167)
;
2168 return type;
2169 }
2170
2171 type = CreateRecordType(nullptr, lldb::eAccessPublic, type_name.GetCString(),
2172 clang::TTK_Struct, lldb::eLanguageTypeC);
2173 StartTagDeclarationDefinition(type);
2174 for (const auto &field : type_fields)
2175 AddFieldToRecordType(type, field.first, field.second, lldb::eAccessPublic,
2176 0);
2177 if (packed)
2178 SetIsPacked(type);
2179 CompleteTagDeclarationDefinition(type);
2180 return type;
2181}
2182
2183CompilerType ClangASTContext::GetOrCreateStructForIdentifier(
2184 const ConstString &type_name,
2185 const std::initializer_list<std::pair<const char *, CompilerType>>
2186 &type_fields,
2187 bool packed) {
2188 CompilerType type;
2189 if ((type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)).IsValid())
2190 return type;
2191
2192 return CreateStructForIdentifier(type_name, type_fields, packed);
2193}
2194
2195#pragma mark Enumeration Types
2196
2197CompilerType
2198ClangASTContext::CreateEnumerationType(const char *name, DeclContext *decl_ctx,
2199 const Declaration &decl,
2200 const CompilerType &integer_clang_type,
2201 bool is_scoped) {
2202 // TODO: Do something intelligent with the Declaration object passed in
2203 // like maybe filling in the SourceLocation with it...
2204 ASTContext *ast = getASTContext();
2205
2206 // TODO: ask about these...
2207 // const bool IsFixed = false;
2208
2209 EnumDecl *enum_decl = EnumDecl::Create(
2210 *ast, decl_ctx, SourceLocation(), SourceLocation(),
2211 name && name[0] ? &ast->Idents.get(name) : nullptr, nullptr,
2212 is_scoped, // IsScoped
2213 is_scoped, // IsScopedUsingClassTag
2214 false); // IsFixed
2215
2216 if (enum_decl) {
2217 if (decl_ctx)
2218 decl_ctx->addDecl(enum_decl);
2219
2220 // TODO: check if we should be setting the promotion type too?
2221 enum_decl->setIntegerType(ClangUtil::GetQualType(integer_clang_type));
2222
2223 enum_decl->setAccess(AS_public); // TODO respect what's in the debug info
2224
2225 return CompilerType(ast, ast->getTagDeclType(enum_decl));
2226 }
2227 return CompilerType();
2228}
2229
2230CompilerType ClangASTContext::GetIntTypeFromBitSize(clang::ASTContext *ast,
2231 size_t bit_size,
2232 bool is_signed) {
2233 if (ast) {
2234 if (is_signed) {
2235 if (bit_size == ast->getTypeSize(ast->SignedCharTy))
2236 return CompilerType(ast, ast->SignedCharTy);
2237
2238 if (bit_size == ast->getTypeSize(ast->ShortTy))
2239 return CompilerType(ast, ast->ShortTy);
2240
2241 if (bit_size == ast->getTypeSize(ast->IntTy))
2242 return CompilerType(ast, ast->IntTy);
2243
2244 if (bit_size == ast->getTypeSize(ast->LongTy))
2245 return CompilerType(ast, ast->LongTy);
2246
2247 if (bit_size == ast->getTypeSize(ast->LongLongTy))
2248 return CompilerType(ast, ast->LongLongTy);
2249
2250 if (bit_size == ast->getTypeSize(ast->Int128Ty))
2251 return CompilerType(ast, ast->Int128Ty);
2252 } else {
2253 if (bit_size == ast->getTypeSize(ast->UnsignedCharTy))
2254 return CompilerType(ast, ast->UnsignedCharTy);
2255
2256 if (bit_size == ast->getTypeSize(ast->UnsignedShortTy))
2257 return CompilerType(ast, ast->UnsignedShortTy);
2258
2259 if (bit_size == ast->getTypeSize(ast->UnsignedIntTy))
2260 return CompilerType(ast, ast->UnsignedIntTy);
2261
2262 if (bit_size == ast->getTypeSize(ast->UnsignedLongTy))
2263 return CompilerType(ast, ast->UnsignedLongTy);
2264
2265 if (bit_size == ast->getTypeSize(ast->UnsignedLongLongTy))
2266 return CompilerType(ast, ast->UnsignedLongLongTy);
2267
2268 if (bit_size == ast->getTypeSize(ast->UnsignedInt128Ty))
2269 return CompilerType(ast, ast->UnsignedInt128Ty);
2270 }
2271 }
2272 return CompilerType();
2273}
2274
2275CompilerType ClangASTContext::GetPointerSizedIntType(clang::ASTContext *ast,
2276 bool is_signed) {
2277 if (ast)
2278 return GetIntTypeFromBitSize(ast, ast->getTypeSize(ast->VoidPtrTy),
2279 is_signed);
2280 return CompilerType();
2281}
2282
2283void ClangASTContext::DumpDeclContextHiearchy(clang::DeclContext *decl_ctx) {
2284 if (decl_ctx) {
2285 DumpDeclContextHiearchy(decl_ctx->getParent());
2286
2287 clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl_ctx);
2288 if (named_decl) {
2289 printf("%20s: %s\n", decl_ctx->getDeclKindName(),
2290 named_decl->getDeclName().getAsString().c_str());
2291 } else {
2292 printf("%20s\n", decl_ctx->getDeclKindName());
2293 }
2294 }
2295}
2296
2297void ClangASTContext::DumpDeclHiearchy(clang::Decl *decl) {
2298 if (decl == nullptr)
2299 return;
2300 DumpDeclContextHiearchy(decl->getDeclContext());
2301
2302 clang::RecordDecl *record_decl = llvm::dyn_cast<clang::RecordDecl>(decl);
2303 if (record_decl) {
2304 printf("%20s: %s%s\n", decl->getDeclKindName(),
2305 record_decl->getDeclName().getAsString().c_str(),
2306 record_decl->isInjectedClassName() ? " (injected class name)" : "");
2307
2308 } else {
2309 clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl);
2310 if (named_decl) {
2311 printf("%20s: %s\n", decl->getDeclKindName(),
2312 named_decl->getDeclName().getAsString().c_str());
2313 } else {
2314 printf("%20s\n", decl->getDeclKindName());
2315 }
2316 }
2317}
2318
2319bool ClangASTContext::DeclsAreEquivalent(clang::Decl *lhs_decl,
2320 clang::Decl *rhs_decl) {
2321 if (lhs_decl && rhs_decl) {
2322 //----------------------------------------------------------------------
2323 // Make sure the decl kinds match first
2324 //----------------------------------------------------------------------
2325 const clang::Decl::Kind lhs_decl_kind = lhs_decl->getKind();
2326 const clang::Decl::Kind rhs_decl_kind = rhs_decl->getKind();
2327
2328 if (lhs_decl_kind == rhs_decl_kind) {
2329 //------------------------------------------------------------------
2330 // Now check that the decl contexts kinds are all equivalent before we
2331 // have to check any names of the decl contexts...
2332 //------------------------------------------------------------------
2333 clang::DeclContext *lhs_decl_ctx = lhs_decl->getDeclContext();
2334 clang::DeclContext *rhs_decl_ctx = rhs_decl->getDeclContext();
2335 if (lhs_decl_ctx && rhs_decl_ctx) {
2336 while (1) {
2337 if (lhs_decl_ctx && rhs_decl_ctx) {
2338 const clang::Decl::Kind lhs_decl_ctx_kind =
2339 lhs_decl_ctx->getDeclKind();
2340 const clang::Decl::Kind rhs_decl_ctx_kind =
2341 rhs_decl_ctx->getDeclKind();
2342 if (lhs_decl_ctx_kind == rhs_decl_ctx_kind) {
2343 lhs_decl_ctx = lhs_decl_ctx->getParent();
2344 rhs_decl_ctx = rhs_decl_ctx->getParent();
2345
2346 if (lhs_decl_ctx == nullptr && rhs_decl_ctx == nullptr)
2347 break;
2348 } else
2349 return false;
2350 } else
2351 return false;
2352 }
2353
2354 //--------------------------------------------------------------
2355 // Now make sure the name of the decls match
2356 //--------------------------------------------------------------
2357 clang::NamedDecl *lhs_named_decl =
2358 llvm::dyn_cast<clang::NamedDecl>(lhs_decl);
2359 clang::NamedDecl *rhs_named_decl =
2360 llvm::dyn_cast<clang::NamedDecl>(rhs_decl);
2361 if (lhs_named_decl && rhs_named_decl) {
2362 clang::DeclarationName lhs_decl_name = lhs_named_decl->getDeclName();
2363 clang::DeclarationName rhs_decl_name = rhs_named_decl->getDeclName();
2364 if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) {
2365 if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString())
2366 return false;
2367 } else
2368 return false;
2369 } else
2370 return false;
2371
2372 //--------------------------------------------------------------
2373 // We know that the decl context kinds all match, so now we need to
2374 // make sure the names match as well
2375 //--------------------------------------------------------------
2376 lhs_decl_ctx = lhs_decl->getDeclContext();
2377 rhs_decl_ctx = rhs_decl->getDeclContext();
2378 while (1) {
2379 switch (lhs_decl_ctx->getDeclKind()) {
2380 case clang::Decl::TranslationUnit:
2381 // We don't care about the translation unit names
2382 return true;
2383 default: {
2384 clang::NamedDecl *lhs_named_decl =
2385 llvm::dyn_cast<clang::NamedDecl>(lhs_decl_ctx);
2386 clang::NamedDecl *rhs_named_decl =
2387 llvm::dyn_cast<clang::NamedDecl>(rhs_decl_ctx);
2388 if (lhs_named_decl && rhs_named_decl) {
2389 clang::DeclarationName lhs_decl_name =
2390 lhs_named_decl->getDeclName();
2391 clang::DeclarationName rhs_decl_name =
2392 rhs_named_decl->getDeclName();
2393 if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) {
2394 if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString())
2395 return false;
2396 } else
2397 return false;
2398 } else
2399 return false;
2400 } break;
2401 }
2402 lhs_decl_ctx = lhs_decl_ctx->getParent();
2403 rhs_decl_ctx = rhs_decl_ctx->getParent();
2404 }
2405 }
2406 }
2407 }
2408 return false;
2409}
2410bool ClangASTContext::GetCompleteDecl(clang::ASTContext *ast,
2411 clang::Decl *decl) {
2412 if (!decl)
2413 return false;
2414
2415 ExternalASTSource *ast_source = ast->getExternalSource();
2416
2417 if (!ast_source)
2418 return false;
2419
2420 if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) {
2421 if (tag_decl->isCompleteDefinition())
2422 return true;
2423
2424 if (!tag_decl->hasExternalLexicalStorage())
2425 return false;
2426
2427 ast_source->CompleteType(tag_decl);
2428
2429 return !tag_decl->getTypeForDecl()->isIncompleteType();
2430 } else if (clang::ObjCInterfaceDecl *objc_interface_decl =
2431 llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) {
2432 if (objc_interface_decl->getDefinition())
2433 return true;
2434
2435 if (!objc_interface_decl->hasExternalLexicalStorage())
2436 return false;
2437
2438 ast_source->CompleteType(objc_interface_decl);
2439
2440 return !objc_interface_decl->getTypeForDecl()->isIncompleteType();
2441 } else {
2442 return false;
2443 }
2444}
2445
2446void ClangASTContext::SetMetadataAsUserID(const void *object,
2447 user_id_t user_id) {
2448 ClangASTMetadata meta_data;
2449 meta_data.SetUserID(user_id);
2450 SetMetadata(object, meta_data);
2451}
2452
2453void ClangASTContext::SetMetadata(clang::ASTContext *ast, const void *object,
2454 ClangASTMetadata &metadata) {
2455 ClangExternalASTSourceCommon *external_source =
2456 ClangExternalASTSourceCommon::Lookup(ast->getExternalSource());
2457
2458 if (external_source)
2459 external_source->SetMetadata(object, metadata);
2460}
2461
2462ClangASTMetadata *ClangASTContext::GetMetadata(clang::ASTContext *ast,
2463 const void *object) {
2464 ClangExternalASTSourceCommon *external_source =
2465 ClangExternalASTSourceCommon::Lookup(ast->getExternalSource());
2466
2467 if (external_source && external_source->HasMetadata(object))
2468 return external_source->GetMetadata(object);
2469 else
2470 return nullptr;
2471}
2472
2473clang::DeclContext *
2474ClangASTContext::GetAsDeclContext(clang::CXXMethodDecl *cxx_method_decl) {
2475 return llvm::dyn_cast<clang::DeclContext>(cxx_method_decl);
2476}
2477
2478clang::DeclContext *
2479ClangASTContext::GetAsDeclContext(clang::ObjCMethodDecl *objc_method_decl) {
2480 return llvm::dyn_cast<clang::DeclContext>(objc_method_decl);
2481}
2482
2483bool ClangASTContext::SetTagTypeKind(clang::QualType tag_qual_type,
2484 int kind) const {
2485 const clang::Type *clang_type = tag_qual_type.getTypePtr();
2486 if (clang_type) {
2487 const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(clang_type);
2488 if (tag_type) {
2489 clang::TagDecl *tag_decl =
2490 llvm::dyn_cast<clang::TagDecl>(tag_type->getDecl());
2491 if (tag_decl) {
2492 tag_decl->setTagKind((clang::TagDecl::TagKind)kind);
2493 return true;
2494 }
2495 }
2496 }
2497 return false;
2498}
2499
2500bool ClangASTContext::SetDefaultAccessForRecordFields(
2501 clang::RecordDecl *record_decl, int default_accessibility,
2502 int *assigned_accessibilities, size_t num_assigned_accessibilities) {
2503 if (record_decl) {
2504 uint32_t field_idx;
2505 clang::RecordDecl::field_iterator field, field_end;
2506 for (field = record_decl->field_begin(),
2507 field_end = record_decl->field_end(), field_idx = 0;
2508 field != field_end; ++field, ++field_idx) {
2509 // If no accessibility was assigned, assign the correct one
2510 if (field_idx < num_assigned_accessibilities &&
2511 assigned_accessibilities[field_idx] == clang::AS_none)
2512 field->setAccess((clang::AccessSpecifier)default_accessibility);
2513 }
2514 return true;
2515 }
2516 return false;
2517}
2518
2519clang::DeclContext *
2520ClangASTContext::GetDeclContextForType(const CompilerType &type) {
2521 return GetDeclContextForType(ClangUtil::GetQualType(type));
2522}
2523
2524clang::DeclContext *
2525ClangASTContext::GetDeclContextForType(clang::QualType type) {
2526 if (type.isNull())
2527 return nullptr;
2528
2529 clang::QualType qual_type = type.getCanonicalType();
2530 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2531 switch (type_class) {
2532 case clang::Type::ObjCInterface:
2533 return llvm::cast<clang::ObjCObjectType>(qual_type.getTypePtr())
2534 ->getInterface();
2535 case clang::Type::ObjCObjectPointer:
2536 return GetDeclContextForType(
2537 llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
2538 ->getPointeeType());
2539 case clang::Type::Record:
2540 return llvm::cast<clang::RecordType>(qual_type)->getDecl();
2541 case clang::Type::Enum:
2542 return llvm::cast<clang::EnumType>(qual_type)->getDecl();
2543 case clang::Type::Typedef:
2544 return GetDeclContextForType(llvm::cast<clang::TypedefType>(qual_type)
2545 ->getDecl()
2546 ->getUnderlyingType());
2547 case clang::Type::Auto:
2548 return GetDeclContextForType(
2549 llvm::cast<clang::AutoType>(qual_type)->getDeducedType());
2550 case clang::Type::Elaborated:
2551 return GetDeclContextForType(
2552 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType());
2553 case clang::Type::Paren:
2554 return GetDeclContextForType(
2555 llvm::cast<clang::ParenType>(qual_type)->desugar());
2556 default:
2557 break;
2558 }
2559 // No DeclContext in this type...
2560 return nullptr;
2561}
2562
2563static bool GetCompleteQualType(clang::ASTContext *ast,
2564 clang::QualType qual_type,
2565 bool allow_completion = true) {
2566 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2567 switch (type_class) {
2568 case clang::Type::ConstantArray:
2569 case clang::Type::IncompleteArray:
2570 case clang::Type::VariableArray: {
2571 const clang::ArrayType *array_type =
2572 llvm::dyn_cast<clang::ArrayType>(qual_type.getTypePtr());
2573
2574 if (array_type)
2575 return GetCompleteQualType(ast, array_type->getElementType(),
2576 allow_completion);
2577 } break;
2578 case clang::Type::Record: {
2579 clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
2580 if (cxx_record_decl) {
2581 if (cxx_record_decl->hasExternalLexicalStorage()) {
2582 const bool is_complete = cxx_record_decl->isCompleteDefinition();
2583 const bool fields_loaded =
2584 cxx_record_decl->hasLoadedFieldsFromExternalStorage();
2585 if (is_complete && fields_loaded)
2586 return true;
2587
2588 if (!allow_completion)
2589 return false;
2590
2591 // Call the field_begin() accessor to for it to use the external source
2592 // to load the fields...
2593 clang::ExternalASTSource *external_ast_source =
2594 ast->getExternalSource();
2595 if (external_ast_source) {
2596 external_ast_source->CompleteType(cxx_record_decl);
2597 if (cxx_record_decl->isCompleteDefinition()) {
2598 cxx_record_decl->field_begin();
2599 cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true);
2600 }
2601 }
2602 }
2603 }
2604 const clang::TagType *tag_type =
2605 llvm::cast<clang::TagType>(qual_type.getTypePtr());
2606 return !tag_type->isIncompleteType();
2607 } break;
2608
2609 case clang::Type::Enum: {
2610 const clang::TagType *tag_type =
2611 llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr());
2612 if (tag_type) {
2613 clang::TagDecl *tag_decl = tag_type->getDecl();
2614 if (tag_decl) {
2615 if (tag_decl->getDefinition())
2616 return true;
2617
2618 if (!allow_completion)
2619 return false;
2620
2621 if (tag_decl->hasExternalLexicalStorage()) {
2622 if (ast) {
2623 clang::ExternalASTSource *external_ast_source =
2624 ast->getExternalSource();
2625 if (external_ast_source) {
2626 external_ast_source->CompleteType(tag_decl);
2627 return !tag_type->isIncompleteType();
2628 }
2629 }
2630 }
2631 return false;
2632 }
2633 }
2634
2635 } break;
2636 case clang::Type::ObjCObject:
2637 case clang::Type::ObjCInterface: {
2638 const clang::ObjCObjectType *objc_class_type =
2639 llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
2640 if (objc_class_type) {
2641 clang::ObjCInterfaceDecl *class_interface_decl =
2642 objc_class_type->getInterface();
2643 // We currently can't complete objective C types through the newly added
2644 // ASTContext because it only supports TagDecl objects right now...
2645 if (class_interface_decl) {
2646 if (class_interface_decl->getDefinition())
2647 return true;
2648
2649 if (!allow_completion)
2650 return false;
2651
2652 if (class_interface_decl->hasExternalLexicalStorage()) {
2653 if (ast) {
2654 clang::ExternalASTSource *external_ast_source =
2655 ast->getExternalSource();
2656 if (external_ast_source) {
2657 external_ast_source->CompleteType(class_interface_decl);
2658 return !objc_class_type->isIncompleteType();
2659 }
2660 }
2661 }
2662 return false;
2663 }
2664 }
2665 } break;
2666
2667 case clang::Type::Typedef:
2668 return GetCompleteQualType(ast, llvm::cast<clang::TypedefType>(qual_type)
2669 ->getDecl()
2670 ->getUnderlyingType(),
2671 allow_completion);
2672
2673 case clang::Type::Auto:
2674 return GetCompleteQualType(
2675 ast, llvm::cast<clang::AutoType>(qual_type)->getDeducedType(),
2676 allow_completion);
2677
2678 case clang::Type::Elaborated:
2679 return GetCompleteQualType(
2680 ast, llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(),
2681 allow_completion);
2682
2683 case clang::Type::Paren:
2684 return GetCompleteQualType(
2685 ast, llvm::cast<clang::ParenType>(qual_type)->desugar(),
2686 allow_completion);
2687
2688 case clang::Type::Attributed:
2689 return GetCompleteQualType(
2690 ast, llvm::cast<clang::AttributedType>(qual_type)->getModifiedType(),
2691 allow_completion);
2692
2693 default:
2694 break;
2695 }
2696
2697 return true;
2698}
2699
2700static clang::ObjCIvarDecl::AccessControl
2701ConvertAccessTypeToObjCIvarAccessControl(AccessType access) {
2702 switch (access) {
2703 case eAccessNone:
2704 return clang::ObjCIvarDecl::None;
2705 case eAccessPublic:
2706 return clang::ObjCIvarDecl::Public;
2707 case eAccessPrivate:
2708 return clang::ObjCIvarDecl::Private;
2709 case eAccessProtected:
2710 return clang::ObjCIvarDecl::Protected;
2711 case eAccessPackage:
2712 return clang::ObjCIvarDecl::Package;
2713 }
2714 return clang::ObjCIvarDecl::None;
2715}
2716
2717//----------------------------------------------------------------------
2718// Tests
2719//----------------------------------------------------------------------
2720
2721bool ClangASTContext::IsAggregateType(lldb::opaque_compiler_type_t type) {
2722 clang::QualType qual_type(GetCanonicalQualType(type));
2723
2724 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2725 switch (type_class) {
2726 case clang::Type::IncompleteArray:
2727 case clang::Type::VariableArray:
2728 case clang::Type::ConstantArray:
2729 case clang::Type::ExtVector:
2730 case clang::Type::Vector:
2731 case clang::Type::Record:
2732 case clang::Type::ObjCObject:
2733 case clang::Type::ObjCInterface:
2734 return true;
2735 case clang::Type::Auto:
2736 return IsAggregateType(llvm::cast<clang::AutoType>(qual_type)
2737 ->getDeducedType()
2738 .getAsOpaquePtr());
2739 case clang::Type::Elaborated:
2740 return IsAggregateType(llvm::cast<clang::ElaboratedType>(qual_type)
2741 ->getNamedType()
2742 .getAsOpaquePtr());
2743 case clang::Type::Typedef:
2744 return IsAggregateType(llvm::cast<clang::TypedefType>(qual_type)
2745 ->getDecl()
2746 ->getUnderlyingType()
2747 .getAsOpaquePtr());
2748 case clang::Type::Paren:
2749 return IsAggregateType(
2750 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr());
2751 default:
2752 break;
2753 }
2754 // The clang type does have a value
2755 return false;
2756}
2757
2758bool ClangASTContext::IsAnonymousType(lldb::opaque_compiler_type_t type) {
2759 clang::QualType qual_type(GetCanonicalQualType(type));
2760
2761 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2762 switch (type_class) {
2763 case clang::Type::Record: {
2764 if (const clang::RecordType *record_type =
2765 llvm::dyn_cast_or_null<clang::RecordType>(
2766 qual_type.getTypePtrOrNull())) {
2767 if (const clang::RecordDecl *record_decl = record_type->getDecl()) {
2768 return record_decl->isAnonymousStructOrUnion();
2769 }
2770 }
2771 break;
2772 }
2773 case clang::Type::Auto:
2774 return IsAnonymousType(llvm::cast<clang::AutoType>(qual_type)
2775 ->getDeducedType()
2776 .getAsOpaquePtr());
2777 case clang::Type::Elaborated:
2778 return IsAnonymousType(llvm::cast<clang::ElaboratedType>(qual_type)
2779 ->getNamedType()
2780 .getAsOpaquePtr());
2781 case clang::Type::Typedef:
2782 return IsAnonymousType(llvm::cast<clang::TypedefType>(qual_type)
2783 ->getDecl()
2784 ->getUnderlyingType()
2785 .getAsOpaquePtr());
2786 case clang::Type::Paren:
2787 return IsAnonymousType(
2788 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr());
2789 default:
2790 break;
2791 }
2792 // The clang type does have a value
2793 return false;
2794}
2795
2796bool ClangASTContext::IsArrayType(lldb::opaque_compiler_type_t type,
2797 CompilerType *element_type_ptr,
2798 uint64_t *size, bool *is_incomplete) {
2799 clang::QualType qual_type(GetCanonicalQualType(type));
2800
2801 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2802 switch (type_class) {
2803 default:
2804 break;
2805
2806 case clang::Type::ConstantArray:
2807 if (element_type_ptr)
2808 element_type_ptr->SetCompilerType(
2809 getASTContext(),
2810 llvm::cast<clang::ConstantArrayType>(qual_type)->getElementType());
2811 if (size)
2812 *size = llvm::cast<clang::ConstantArrayType>(qual_type)
2813 ->getSize()
2814 .getLimitedValue(ULLONG_MAX(9223372036854775807LL*2ULL+1ULL));
2815 if (is_incomplete)
2816 *is_incomplete = false;
2817 return true;
2818
2819 case clang::Type::IncompleteArray:
2820 if (element_type_ptr)
2821 element_type_ptr->SetCompilerType(
2822 getASTContext(),
2823 llvm::cast<clang::IncompleteArrayType>(qual_type)->getElementType());
2824 if (size)
2825 *size = 0;
2826 if (is_incomplete)
2827 *is_incomplete = true;
2828 return true;
2829
2830 case clang::Type::VariableArray:
2831 if (element_type_ptr)
2832 element_type_ptr->SetCompilerType(
2833 getASTContext(),
2834 llvm::cast<clang::VariableArrayType>(qual_type)->getElementType());
2835 if (size)
2836 *size = 0;
2837 if (is_incomplete)
2838 *is_incomplete = false;
2839 return true;
2840
2841 case clang::Type::DependentSizedArray:
2842 if (element_type_ptr)
2843 element_type_ptr->SetCompilerType(
2844 getASTContext(), llvm::cast<clang::DependentSizedArrayType>(qual_type)
2845 ->getElementType());
2846 if (size)
2847 *size = 0;
2848 if (is_incomplete)
2849 *is_incomplete = false;
2850 return true;
2851
2852 case clang::Type::Typedef:
2853 return IsArrayType(llvm::cast<clang::TypedefType>(qual_type)
2854 ->getDecl()
2855 ->getUnderlyingType()
2856 .getAsOpaquePtr(),
2857 element_type_ptr, size, is_incomplete);
2858 case clang::Type::Auto:
2859 return IsArrayType(llvm::cast<clang::AutoType>(qual_type)
2860 ->getDeducedType()
2861 .getAsOpaquePtr(),
2862 element_type_ptr, size, is_incomplete);
2863 case clang::Type::Elaborated:
2864 return IsArrayType(llvm::cast<clang::ElaboratedType>(qual_type)
2865 ->getNamedType()
2866 .getAsOpaquePtr(),
2867 element_type_ptr, size, is_incomplete);
2868 case clang::Type::Paren:
2869 return IsArrayType(
2870 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
2871 element_type_ptr, size, is_incomplete);
2872 }
2873 if (element_type_ptr)
2874 element_type_ptr->Clear();
2875 if (size)
2876 *size = 0;
2877 if (is_incomplete)
2878 *is_incomplete = false;
2879 return false;
2880}
2881
2882bool ClangASTContext::IsVectorType(lldb::opaque_compiler_type_t type,
2883 CompilerType *element_type, uint64_t *size) {
2884 clang::QualType qual_type(GetCanonicalQualType(type));
2885
2886 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2887 switch (type_class) {
2888 case clang::Type::Vector: {
2889 const clang::VectorType *vector_type =
2890 qual_type->getAs<clang::VectorType>();
2891 if (vector_type) {
2892 if (size)
2893 *size = vector_type->getNumElements();
2894 if (element_type)
2895 *element_type =
2896 CompilerType(getASTContext(), vector_type->getElementType());
2897 }
2898 return true;
2899 } break;
2900 case clang::Type::ExtVector: {
2901 const clang::ExtVectorType *ext_vector_type =
2902 qual_type->getAs<clang::ExtVectorType>();
2903 if (ext_vector_type) {
2904 if (size)
2905 *size = ext_vector_type->getNumElements();
2906 if (element_type)
2907 *element_type =
2908 CompilerType(getASTContext(), ext_vector_type->getElementType());
2909 }
2910 return true;
2911 }
2912 default:
2913 break;
2914 }
2915 return false;
2916}
2917
2918bool ClangASTContext::IsRuntimeGeneratedType(
2919 lldb::opaque_compiler_type_t type) {
2920 clang::DeclContext *decl_ctx = ClangASTContext::GetASTContext(getASTContext())
2921 ->GetDeclContextForType(GetQualType(type));
2922 if (!decl_ctx)
2923 return false;
2924
2925 if (!llvm::isa<clang::ObjCInterfaceDecl>(decl_ctx))
2926 return false;
2927
2928 clang::ObjCInterfaceDecl *result_iface_decl =
2929 llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl_ctx);
2930
2931 ClangASTMetadata *ast_metadata =
2932 ClangASTContext::GetMetadata(getASTContext(), result_iface_decl);
2933 if (!ast_metadata)
2934 return false;
2935 return (ast_metadata->GetISAPtr() != 0);
2936}
2937
2938bool ClangASTContext::IsCharType(lldb::opaque_compiler_type_t type) {
2939 return GetQualType(type).getUnqualifiedType()->isCharType();
2940}
2941
2942bool ClangASTContext::IsCompleteType(lldb::opaque_compiler_type_t type) {
2943 const bool allow_completion = false;
2944 return GetCompleteQualType(getASTContext(), GetQualType(type),
2945 allow_completion);
2946}
2947
2948bool ClangASTContext::IsConst(lldb::opaque_compiler_type_t type) {
2949 return GetQualType(type).isConstQualified();
2950}
2951
2952bool ClangASTContext::IsCStringType(lldb::opaque_compiler_type_t type,
2953 uint32_t &length) {
2954 CompilerType pointee_or_element_clang_type;
2955 length = 0;
2956 Flags type_flags(GetTypeInfo(type, &pointee_or_element_clang_type));
2957
2958 if (!pointee_or_element_clang_type.IsValid())
2959 return false;
2960
2961 if (type_flags.AnySet(eTypeIsArray | eTypeIsPointer)) {
2962 if (pointee_or_element_clang_type.IsCharType()) {
2963 if (type_flags.Test(eTypeIsArray)) {
2964 // We know the size of the array and it could be a C string since it is
2965 // an array of characters
2966 length = llvm::cast<clang::ConstantArrayType>(
2967 GetCanonicalQualType(type).getTypePtr())
2968 ->getSize()
2969 .getLimitedValue();
2970 }
2971 return true;
2972 }
2973 }
2974 return false;
2975}
2976
2977bool ClangASTContext::IsFunctionType(lldb::opaque_compiler_type_t type,
2978 bool *is_variadic_ptr) {
2979 if (type) {
2980 clang::QualType qual_type(GetCanonicalQualType(type));
2981
2982 if (qual_type->isFunctionType()) {
2983 if (is_variadic_ptr) {
2984 const clang::FunctionProtoType *function_proto_type =
2985 llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
2986 if (function_proto_type)
2987 *is_variadic_ptr = function_proto_type->isVariadic();
2988 else
2989 *is_variadic_ptr = false;
2990 }
2991 return true;
2992 }
2993
2994 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2995 switch (type_class) {
2996 default:
2997 break;
2998 case clang::Type::Typedef:
2999 return IsFunctionType(llvm::cast<clang::TypedefType>(qual_type)
3000 ->getDecl()
3001 ->getUnderlyingType()
3002 .getAsOpaquePtr(),
3003 nullptr);
3004 case clang::Type::Auto:
3005 return IsFunctionType(llvm::cast<clang::AutoType>(qual_type)
3006 ->getDeducedType()
3007 .getAsOpaquePtr(),
3008 nullptr);
3009 case clang::Type::Elaborated:
3010 return IsFunctionType(llvm::cast<clang::ElaboratedType>(qual_type)
3011 ->getNamedType()
3012 .getAsOpaquePtr(),
3013 nullptr);
3014 case clang::Type::Paren:
3015 return IsFunctionType(
3016 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
3017 nullptr);
3018 case clang::Type::LValueReference:
3019 case clang::Type::RValueReference: {
3020 const clang::ReferenceType *reference_type =
3021 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
3022 if (reference_type)
3023 return IsFunctionType(reference_type->getPointeeType().getAsOpaquePtr(),
3024 nullptr);
3025 } break;
3026 }
3027 }
3028 return false;
3029}
3030
3031// Used to detect "Homogeneous Floating-point Aggregates"
3032uint32_t
3033ClangASTContext::IsHomogeneousAggregate(lldb::opaque_compiler_type_t type,
3034 CompilerType *base_type_ptr) {
3035 if (!type)
3036 return 0;
3037
3038 clang::QualType qual_type(GetCanonicalQualType(type));
3039 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3040 switch (type_class) {
3041 case clang::Type::Record:
3042 if (GetCompleteType(type)) {
3043 const clang::CXXRecordDecl *cxx_record_decl =
3044 qual_type->getAsCXXRecordDecl();
3045 if (cxx_record_decl) {
3046 if (cxx_record_decl->getNumBases() || cxx_record_decl->isDynamicClass())
3047 return 0;
3048 }
3049 const clang::RecordType *record_type =
3050 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
3051 if (record_type) {
3052 const clang::RecordDecl *record_decl = record_type->getDecl();
3053 if (record_decl) {
3054 // We are looking for a structure that contains only floating point
3055 // types
3056 clang::RecordDecl::field_iterator field_pos,
3057 field_end = record_decl->field_end();
3058 uint32_t num_fields = 0;
3059 bool is_hva = false;
3060 bool is_hfa = false;
3061 clang::QualType base_qual_type;
3062 uint64_t base_bitwidth = 0;
3063 for (field_pos = record_decl->field_begin(); field_pos != field_end;
3064 ++field_pos) {
3065 clang::QualType field_qual_type = field_pos->getType();
3066 uint64_t field_bitwidth = getASTContext()->getTypeSize(qual_type);
3067 if (field_qual_type->isFloatingType()) {
3068 if (field_qual_type->isComplexType())
3069 return 0;
3070 else {
3071 if (num_fields == 0)
3072 base_qual_type = field_qual_type;
3073 else {
3074 if (is_hva)
3075 return 0;
3076 is_hfa = true;
3077 if (field_qual_type.getTypePtr() !=
3078 base_qual_type.getTypePtr())
3079 return 0;
3080 }
3081 }
3082 } else if (field_qual_type->isVectorType() ||
3083 field_qual_type->isExtVectorType()) {
3084 if (num_fields == 0) {
3085 base_qual_type = field_qual_type;
3086 base_bitwidth = field_bitwidth;
3087 } else {
3088 if (is_hfa)
3089 return 0;
3090 is_hva = true;
3091 if (base_bitwidth != field_bitwidth)
3092 return 0;
3093 if (field_qual_type.getTypePtr() != base_qual_type.getTypePtr())
3094 return 0;
3095 }
3096 } else
3097 return 0;
3098 ++num_fields;
3099 }
3100 if (base_type_ptr)
3101 *base_type_ptr = CompilerType(getASTContext(), base_qual_type);
3102 return num_fields;
3103 }
3104 }
3105 }
3106 break;
3107
3108 case clang::Type::Typedef:
3109 return IsHomogeneousAggregate(llvm::cast<clang::TypedefType>(qual_type)
3110 ->getDecl()
3111 ->getUnderlyingType()
3112 .getAsOpaquePtr(),
3113 base_type_ptr);
3114
3115 case clang::Type::Auto:
3116 return IsHomogeneousAggregate(llvm::cast<clang::AutoType>(qual_type)
3117 ->getDeducedType()
3118 .getAsOpaquePtr(),
3119 base_type_ptr);
3120
3121 case clang::Type::Elaborated:
3122 return IsHomogeneousAggregate(llvm::cast<clang::ElaboratedType>(qual_type)
3123 ->getNamedType()
3124 .getAsOpaquePtr(),
3125 base_type_ptr);
3126 default:
3127 break;
3128 }
3129 return 0;
3130}
3131
3132size_t ClangASTContext::GetNumberOfFunctionArguments(
3133 lldb::opaque_compiler_type_t type) {
3134 if (type) {
3135 clang::QualType qual_type(GetCanonicalQualType(type));
3136 const clang::FunctionProtoType *func =
3137 llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
3138 if (func)
3139 return func->getNumParams();
3140 }
3141 return 0;
3142}
3143
3144CompilerType
3145ClangASTContext::GetFunctionArgumentAtIndex(lldb::opaque_compiler_type_t type,
3146 const size_t index) {
3147 if (type) {
3148 clang::QualType qual_type(GetQualType(type));
3149 const clang::FunctionProtoType *func =
3150 llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
3151 if (func) {
3152 if (index < func->getNumParams())
3153 return CompilerType(getASTContext(), func->getParamType(index));
3154 }
3155 }
3156 return CompilerType();
3157}
3158
3159bool ClangASTContext::IsFunctionPointerType(lldb::opaque_compiler_type_t type) {
3160 if (type) {
3161 clang::QualType qual_type(GetCanonicalQualType(type));
3162
3163 if (qual_type->isFunctionPointerType())
3164 return true;
3165
3166 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3167 switch (type_class) {
3168 default:
3169 break;
3170 case clang::Type::Typedef:
3171 return IsFunctionPointerType(llvm::cast<clang::TypedefType>(qual_type)
3172 ->getDecl()
3173 ->getUnderlyingType()
3174 .getAsOpaquePtr());
3175 case clang::Type::Auto:
3176 return IsFunctionPointerType(llvm::cast<clang::AutoType>(qual_type)
3177 ->getDeducedType()
3178 .getAsOpaquePtr());
3179 case clang::Type::Elaborated:
3180 return IsFunctionPointerType(llvm::cast<clang::ElaboratedType>(qual_type)
3181 ->getNamedType()
3182 .getAsOpaquePtr());
3183 case clang::Type::Paren:
3184 return IsFunctionPointerType(
3185 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr());
3186
3187 case clang::Type::LValueReference:
3188 case clang::Type::RValueReference: {
3189 const clang::ReferenceType *reference_type =
3190 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
3191 if (reference_type)
3192 return IsFunctionPointerType(
3193 reference_type->getPointeeType().getAsOpaquePtr());
3194 } break;
3195 }
3196 }
3197 return false;
3198}
3199
3200bool ClangASTContext::IsBlockPointerType(
3201 lldb::opaque_compiler_type_t type,
3202 CompilerType *function_pointer_type_ptr) {
3203 if (type) {
3204 clang::QualType qual_type(GetCanonicalQualType(type));
3205
3206 if (qual_type->isBlockPointerType()) {
3207 if (function_pointer_type_ptr) {
3208 const clang::BlockPointerType *block_pointer_type =
3209 qual_type->getAs<clang::BlockPointerType>();
3210 QualType pointee_type = block_pointer_type->getPointeeType();
3211 QualType function_pointer_type = m_ast_ap->getPointerType(pointee_type);
3212 *function_pointer_type_ptr =
3213 CompilerType(getASTContext(), function_pointer_type);
3214 }
3215 return true;
3216 }
3217
3218 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3219 switch (type_class) {
3220 default:
3221 break;
3222 case clang::Type::Typedef:
3223 return IsBlockPointerType(llvm::cast<clang::TypedefType>(qual_type)
3224 ->getDecl()
3225 ->getUnderlyingType()
3226 .getAsOpaquePtr(),
3227 function_pointer_type_ptr);
3228 case clang::Type::Auto:
3229 return IsBlockPointerType(llvm::cast<clang::AutoType>(qual_type)
3230 ->getDeducedType()
3231 .getAsOpaquePtr(),
3232 function_pointer_type_ptr);
3233 case clang::Type::Elaborated:
3234 return IsBlockPointerType(llvm::cast<clang::ElaboratedType>(qual_type)
3235 ->getNamedType()
3236 .getAsOpaquePtr(),
3237 function_pointer_type_ptr);
3238 case clang::Type::Paren:
3239 return IsBlockPointerType(
3240 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
3241 function_pointer_type_ptr);
3242
3243 case clang::Type::LValueReference:
3244 case clang::Type::RValueReference: {
3245 const clang::ReferenceType *reference_type =
3246 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
3247 if (reference_type)
3248 return IsBlockPointerType(
3249 reference_type->getPointeeType().getAsOpaquePtr(),
3250 function_pointer_type_ptr);
3251 } break;
3252 }
3253 }
3254 return false;
3255}
3256
3257bool ClangASTContext::IsIntegerType(lldb::opaque_compiler_type_t type,
3258 bool &is_signed) {
3259 if (!type)
3260 return false;
3261
3262 clang::QualType qual_type(GetCanonicalQualType(type));
3263 const clang::BuiltinType *builtin_type =
3264 llvm::dyn_cast<clang::BuiltinType>(qual_type->getCanonicalTypeInternal());
3265
3266 if (builtin_type) {
3267 if (builtin_type->isInteger()) {
3268 is_signed = builtin_type->isSignedInteger();
3269 return true;
3270 }
3271 }
3272
3273 return false;
3274}
3275
3276bool ClangASTContext::IsEnumerationType(lldb::opaque_compiler_type_t type,
3277 bool &is_signed) {
3278 if (type) {
3279 const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>(
3280 GetCanonicalQualType(type)->getCanonicalTypeInternal());
3281
3282 if (enum_type) {
3283 IsIntegerType(enum_type->getDecl()->getIntegerType().getAsOpaquePtr(),
3284 is_signed);
3285 return true;
3286 }
3287 }
3288
3289 return false;
3290}
3291
3292bool ClangASTContext::IsPointerType(lldb::opaque_compiler_type_t type,
3293 CompilerType *pointee_type) {
3294 if (type) {
3295 clang::QualType qual_type(GetCanonicalQualType(type));
3296 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3297 switch (type_class) {
3298 case clang::Type::Builtin:
3299 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
3300 default:
3301 break;
3302 case clang::BuiltinType::ObjCId:
3303 case clang::BuiltinType::ObjCClass:
3304 return true;
3305 }
3306 return false;
3307 case clang::Type::ObjCObjectPointer:
3308 if (pointee_type)
3309 pointee_type->SetCompilerType(
3310 getASTContext(), llvm::cast<clang::ObjCObjectPointerType>(qual_type)
3311 ->getPointeeType());
3312 return true;
3313 case clang::Type::BlockPointer:
3314 if (pointee_type)
3315 pointee_type->SetCompilerType(
3316 getASTContext(),
3317 llvm::cast<clang::BlockPointerType>(qual_type)->getPointeeType());
3318 return true;
3319 case clang::Type::Pointer:
3320 if (pointee_type)
3321 pointee_type->SetCompilerType(
3322 getASTContext(),
3323 llvm::cast<clang::PointerType>(qual_type)->getPointeeType());
3324 return true;
3325 case clang::Type::MemberPointer:
3326 if (pointee_type)
3327 pointee_type->SetCompilerType(
3328 getASTContext(),
3329 llvm::cast<clang::MemberPointerType>(qual_type)->getPointeeType());
3330 return true;
3331 case clang::Type::Typedef:
3332 return IsPointerType(llvm::cast<clang::TypedefType>(qual_type)
3333 ->getDecl()
3334 ->getUnderlyingType()
3335 .getAsOpaquePtr(),
3336 pointee_type);
3337 case clang::Type::Auto:
3338 return IsPointerType(llvm::cast<clang::AutoType>(qual_type)
3339 ->getDeducedType()
3340 .getAsOpaquePtr(),
3341 pointee_type);
3342 case clang::Type::Elaborated:
3343 return IsPointerType(llvm::cast<clang::ElaboratedType>(qual_type)
3344 ->getNamedType()
3345 .getAsOpaquePtr(),
3346 pointee_type);
3347 case clang::Type::Paren:
3348 return IsPointerType(
3349 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
3350 pointee_type);
3351 default:
3352 break;
3353 }
3354 }
3355 if (pointee_type)
3356 pointee_type->Clear();
3357 return false;
3358}
3359
3360bool ClangASTContext::IsPointerOrReferenceType(
3361 lldb::opaque_compiler_type_t type, CompilerType *pointee_type) {
3362 if (type) {
3363 clang::QualType qual_type(GetCanonicalQualType(type));
3364 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3365 switch (type_class) {
3366 case clang::Type::Builtin:
3367 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
3368 default:
3369 break;
3370 case clang::BuiltinType::ObjCId:
3371 case clang::BuiltinType::ObjCClass:
3372 return true;
3373 }
3374 return false;
3375 case clang::Type::ObjCObjectPointer:
3376 if (pointee_type)
3377 pointee_type->SetCompilerType(
3378 getASTContext(), llvm::cast<clang::ObjCObjectPointerType>(qual_type)
3379 ->getPointeeType());
3380 return true;
3381 case clang::Type::BlockPointer:
3382 if (pointee_type)
3383 pointee_type->SetCompilerType(
3384 getASTContext(),
3385 llvm::cast<clang::BlockPointerType>(qual_type)->getPointeeType());
3386 return true;
3387 case clang::Type::Pointer:
3388 if (pointee_type)
3389 pointee_type->SetCompilerType(
3390 getASTContext(),
3391 llvm::cast<clang::PointerType>(qual_type)->getPointeeType());
3392 return true;
3393 case clang::Type::MemberPointer:
3394 if (pointee_type)
3395 pointee_type->SetCompilerType(
3396 getASTContext(),
3397 llvm::cast<clang::MemberPointerType>(qual_type)->getPointeeType());
3398 return true;
3399 case clang::Type::LValueReference:
3400 if (pointee_type)
3401 pointee_type->SetCompilerType(
3402 getASTContext(),
3403 llvm::cast<clang::LValueReferenceType>(qual_type)->desugar());
3404 return true;
3405 case clang::Type::RValueReference:
3406 if (pointee_type)
3407 pointee_type->SetCompilerType(
3408 getASTContext(),
3409 llvm::cast<clang::RValueReferenceType>(qual_type)->desugar());
3410 return true;
3411 case clang::Type::Typedef:
3412 return IsPointerOrReferenceType(llvm::cast<clang::TypedefType>(qual_type)
3413 ->getDecl()
3414 ->getUnderlyingType()
3415 .getAsOpaquePtr(),
3416 pointee_type);
3417 case clang::Type::Auto:
3418 return IsPointerOrReferenceType(llvm::cast<clang::AutoType>(qual_type)
3419 ->getDeducedType()
3420 .getAsOpaquePtr(),
3421 pointee_type);
3422 case clang::Type::Elaborated:
3423 return IsPointerOrReferenceType(
3424 llvm::cast<clang::ElaboratedType>(qual_type)
3425 ->getNamedType()
3426 .getAsOpaquePtr(),
3427 pointee_type);
3428 case clang::Type::Paren:
3429 return IsPointerOrReferenceType(
3430 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
3431 pointee_type);
3432 default:
3433 break;
3434 }
3435 }
3436 if (pointee_type)
3437 pointee_type->Clear();
3438 return false;
3439}
3440
3441bool ClangASTContext::IsReferenceType(lldb::opaque_compiler_type_t type,
3442 CompilerType *pointee_type,
3443 bool *is_rvalue) {
3444 if (type) {
3445 clang::QualType qual_type(GetCanonicalQualType(type));
3446 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3447
3448 switch (type_class) {
3449 case clang::Type::LValueReference:
3450 if (pointee_type)
3451 pointee_type->SetCompilerType(
3452 getASTContext(),
3453 llvm::cast<clang::LValueReferenceType>(qual_type)->desugar());
3454 if (is_rvalue)
3455 *is_rvalue = false;
3456 return true;
3457 case clang::Type::RValueReference:
3458 if (pointee_type)
3459 pointee_type->SetCompilerType(
3460 getASTContext(),
3461 llvm::cast<clang::RValueReferenceType>(qual_type)->desugar());
3462 if (is_rvalue)
3463 *is_rvalue = true;
3464 return true;
3465 case clang::Type::Typedef:
3466 return IsReferenceType(llvm::cast<clang::TypedefType>(qual_type)
3467 ->getDecl()
3468 ->getUnderlyingType()
3469 .getAsOpaquePtr(),
3470 pointee_type, is_rvalue);
3471 case clang::Type::Auto:
3472 return IsReferenceType(llvm::cast<clang::AutoType>(qual_type)
3473 ->getDeducedType()
3474 .getAsOpaquePtr(),
3475 pointee_type, is_rvalue);
3476 case clang::Type::Elaborated:
3477 return IsReferenceType(llvm::cast<clang::ElaboratedType>(qual_type)
3478 ->getNamedType()
3479 .getAsOpaquePtr(),
3480 pointee_type, is_rvalue);
3481 case clang::Type::Paren:
3482 return IsReferenceType(
3483 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
3484 pointee_type, is_rvalue);
3485
3486 default:
3487 break;
3488 }
3489 }
3490 if (pointee_type)
3491 pointee_type->Clear();
3492 return false;
3493}
3494
3495bool ClangASTContext::IsFloatingPointType(lldb::opaque_compiler_type_t type,
3496 uint32_t &count, bool &is_complex) {
3497 if (type) {
3498 clang::QualType qual_type(GetCanonicalQualType(type));
3499
3500 if (const clang::BuiltinType *BT = llvm::dyn_cast<clang::BuiltinType>(
3501 qual_type->getCanonicalTypeInternal())) {
3502 clang::BuiltinType::Kind kind = BT->getKind();
3503 if (kind >= clang::BuiltinType::Float &&
3504 kind <= clang::BuiltinType::LongDouble) {
3505 count = 1;
3506 is_complex = false;
3507 return true;
3508 }
3509 } else if (const clang::ComplexType *CT =
3510 llvm::dyn_cast<clang::ComplexType>(
3511 qual_type->getCanonicalTypeInternal())) {
3512 if (IsFloatingPointType(CT->getElementType().getAsOpaquePtr(), count,
3513 is_complex)) {
3514 count = 2;
3515 is_complex = true;
3516 return true;
3517 }
3518 } else if (const clang::VectorType *VT = llvm::dyn_cast<clang::VectorType>(
3519 qual_type->getCanonicalTypeInternal())) {
3520 if (IsFloatingPointType(VT->getElementType().getAsOpaquePtr(), count,
3521 is_complex)) {
3522 count = VT->getNumElements();
3523 is_complex = false;
3524 return true;
3525 }
3526 }
3527 }
3528 count = 0;
3529 is_complex = false;
3530 return false;
3531}
3532
3533bool ClangASTContext::IsDefined(lldb::opaque_compiler_type_t type) {
3534 if (!type)
3535 return false;
3536
3537 clang::QualType qual_type(GetQualType(type));
3538 const clang::TagType *tag_type =
3539 llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr());
3540 if (tag_type) {
3541 clang::TagDecl *tag_decl = tag_type->getDecl();
3542 if (tag_decl)
3543 return tag_decl->isCompleteDefinition();
3544 return false;
3545 } else {
3546 const clang::ObjCObjectType *objc_class_type =
3547 llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
3548 if (objc_class_type) {
3549 clang::ObjCInterfaceDecl *class_interface_decl =
3550 objc_class_type->getInterface();
3551 if (class_interface_decl)
3552 return class_interface_decl->getDefinition() != nullptr;
3553 return false;
3554 }
3555 }
3556 return true;
3557}
3558
3559bool ClangASTContext::IsObjCClassType(const CompilerType &type) {
3560 if (type) {
3561 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3562
3563 const clang::ObjCObjectPointerType *obj_pointer_type =
3564 llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type);
3565
3566 if (obj_pointer_type)
3567 return obj_pointer_type->isObjCClassType();
3568 }
3569 return false;
3570}
3571
3572bool ClangASTContext::IsObjCObjectOrInterfaceType(const CompilerType &type) {
3573 if (ClangUtil::IsClangType(type))
3574 return ClangUtil::GetCanonicalQualType(type)->isObjCObjectOrInterfaceType();
3575 return false;
3576}
3577
3578bool ClangASTContext::IsClassType(lldb::opaque_compiler_type_t type) {
3579 if (!type)
3580 return false;
3581 clang::QualType qual_type(GetCanonicalQualType(type));
3582 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3583 return (type_class == clang::Type::Record);
3584}
3585
3586bool ClangASTContext::IsEnumType(lldb::opaque_compiler_type_t type) {
3587 if (!type)
3588 return false;
3589 clang::QualType qual_type(GetCanonicalQualType(type));
3590 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3591 return (type_class == clang::Type::Enum);
3592}
3593
3594bool ClangASTContext::IsPolymorphicClass(lldb::opaque_compiler_type_t type) {
3595 if (type) {
3596 clang::QualType qual_type(GetCanonicalQualType(type));
3597 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3598 switch (type_class) {
3599 case clang::Type::Record:
3600 if (GetCompleteType(type)) {
3601 const clang::RecordType *record_type =
3602 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
3603 const clang::RecordDecl *record_decl = record_type->getDecl();
3604 if (record_decl) {
3605 const clang::CXXRecordDecl *cxx_record_decl =
3606 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
3607 if (cxx_record_decl)
3608 return cxx_record_decl->isPolymorphic();
3609 }
3610 }
3611 break;
3612
3613 default:
3614 break;
3615 }
3616 }
3617 return false;
3618}
3619
3620bool ClangASTContext::IsPossibleDynamicType(lldb::opaque_compiler_type_t type,
3621 CompilerType *dynamic_pointee_type,
3622 bool check_cplusplus,
3623 bool check_objc) {
3624 clang::QualType pointee_qual_type;
3625 if (type) {
3626 clang::QualType qual_type(GetCanonicalQualType(type));
3627 bool success = false;
3628 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3629 switch (type_class) {
3630 case clang::Type::Builtin:
3631 if (check_objc &&
3632 llvm::cast<clang::BuiltinType>(qual_type)->getKind() ==
3633 clang::BuiltinType::ObjCId) {
3634 if (dynamic_pointee_type)
3635 dynamic_pointee_type->SetCompilerType(this, type);
3636 return true;
3637 }
3638 break;
3639
3640 case clang::Type::ObjCObjectPointer:
3641 if (check_objc) {
3642 if (auto objc_pointee_type =
3643 qual_type->getPointeeType().getTypePtrOrNull()) {
3644 if (auto objc_object_type =
3645 llvm::dyn_cast_or_null<clang::ObjCObjectType>(
3646 objc_pointee_type)) {
3647 if (objc_object_type->isObjCClass())
3648 return false;
3649 }
3650 }
3651 if (dynamic_pointee_type)
3652 dynamic_pointee_type->SetCompilerType(
3653 getASTContext(),
3654 llvm::cast<clang::ObjCObjectPointerType>(qual_type)
3655 ->getPointeeType());
3656 return true;
3657 }
3658 break;
3659
3660 case clang::Type::Pointer:
3661 pointee_qual_type =
3662 llvm::cast<clang::PointerType>(qual_type)->getPointeeType();
3663 success = true;
3664 break;
3665
3666 case clang::Type::LValueReference:
3667 case clang::Type::RValueReference:
3668 pointee_qual_type =
3669 llvm::cast<clang::ReferenceType>(qual_type)->getPointeeType();
3670 success = true;
3671 break;
3672
3673 case clang::Type::Typedef:
3674 return IsPossibleDynamicType(llvm::cast<clang::TypedefType>(qual_type)
3675 ->getDecl()
3676 ->getUnderlyingType()
3677 .getAsOpaquePtr(),
3678 dynamic_pointee_type, check_cplusplus,
3679 check_objc);
3680
3681 case clang::Type::Auto:
3682 return IsPossibleDynamicType(llvm::cast<clang::AutoType>(qual_type)
3683 ->getDeducedType()
3684 .getAsOpaquePtr(),
3685 dynamic_pointee_type, check_cplusplus,
3686 check_objc);
3687
3688 case clang::Type::Elaborated:
3689 return IsPossibleDynamicType(llvm::cast<clang::ElaboratedType>(qual_type)
3690 ->getNamedType()
3691 .getAsOpaquePtr(),
3692 dynamic_pointee_type, check_cplusplus,
3693 check_objc);
3694
3695 case clang::Type::Paren:
3696 return IsPossibleDynamicType(
3697 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
3698 dynamic_pointee_type, check_cplusplus, check_objc);
3699 default:
3700 break;
3701 }
3702
3703 if (success) {
3704 // Check to make sure what we are pointing too is a possible dynamic C++
3705 // type We currently accept any "void *" (in case we have a class that
3706 // has been watered down to an opaque pointer) and virtual C++ classes.
3707 const clang::Type::TypeClass pointee_type_class =
3708 pointee_qual_type.getCanonicalType()->getTypeClass();
3709 switch (pointee_type_class) {
3710 case clang::Type::Builtin:
3711 switch (llvm::cast<clang::BuiltinType>(pointee_qual_type)->getKind()) {
3712 case clang::BuiltinType::UnknownAny:
3713 case clang::BuiltinType::Void:
3714 if (dynamic_pointee_type)
3715 dynamic_pointee_type->SetCompilerType(getASTContext(),
3716 pointee_qual_type);
3717 return true;
3718 default:
3719 break;
3720 }
3721 break;
3722
3723 case clang::Type::Record:
3724 if (check_cplusplus) {
3725 clang::CXXRecordDecl *cxx_record_decl =
3726 pointee_qual_type->getAsCXXRecordDecl();
3727 if (cxx_record_decl) {
3728 bool is_complete = cxx_record_decl->isCompleteDefinition();
3729
3730 if (is_complete)
3731 success = cxx_record_decl->isDynamicClass();
3732 else {
3733 ClangASTMetadata *metadata = ClangASTContext::GetMetadata(
3734 getASTContext(), cxx_record_decl);
3735 if (metadata)
3736 success = metadata->GetIsDynamicCXXType();
3737 else {
3738 is_complete = CompilerType(getASTContext(), pointee_qual_type)
3739 .GetCompleteType();
3740 if (is_complete)
3741 success = cxx_record_decl->isDynamicClass();
3742 else
3743 success = false;
3744 }
3745 }
3746
3747 if (success) {
3748 if (dynamic_pointee_type)
3749 dynamic_pointee_type->SetCompilerType(getASTContext(),
3750 pointee_qual_type);
3751 return true;
3752 }
3753 }
3754 }
3755 break;
3756
3757 case clang::Type::ObjCObject:
3758 case clang::Type::ObjCInterface:
3759 if (check_objc) {
3760 if (dynamic_pointee_type)
3761 dynamic_pointee_type->SetCompilerType(getASTContext(),
3762 pointee_qual_type);
3763 return true;
3764 }
3765 break;
3766
3767 default:
3768 break;
3769 }
3770 }
3771 }
3772 if (dynamic_pointee_type)
3773 dynamic_pointee_type->Clear();
3774 return false;
3775}
3776
3777bool ClangASTContext::IsScalarType(lldb::opaque_compiler_type_t type) {
3778 if (!type)
3779 return false;
3780
3781 return (GetTypeInfo(type, nullptr) & eTypeIsScalar) != 0;
3782}
3783
3784bool ClangASTContext::IsTypedefType(lldb::opaque_compiler_type_t type) {
3785 if (!type)
3786 return false;
3787 return GetQualType(type)->getTypeClass() == clang::Type::Typedef;
3788}
3789
3790bool ClangASTContext::IsVoidType(lldb::opaque_compiler_type_t type) {
3791 if (!type)
3792 return false;
3793 return GetCanonicalQualType(type)->isVoidType();
3794}
3795
3796bool ClangASTContext::SupportsLanguage(lldb::LanguageType language) {
3797 return ClangASTContextSupportsLanguage(language);
3798}
3799
3800bool ClangASTContext::GetCXXClassName(const CompilerType &type,
3801 std::string &class_name) {
3802 if (type) {
3803 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3804 if (!qual_type.isNull()) {
3805 clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
3806 if (cxx_record_decl) {
3807 class_name.assign(cxx_record_decl->getIdentifier()->getNameStart());
3808 return true;
3809 }
3810 }
3811 }
3812 class_name.clear();
3813 return false;
3814}
3815
3816bool ClangASTContext::IsCXXClassType(const CompilerType &type) {
3817 if (!type)
3818 return false;
3819
3820 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3821 if (!qual_type.isNull() && qual_type->getAsCXXRecordDecl() != nullptr)
3822 return true;
3823 return false;
3824}
3825
3826bool ClangASTContext::IsBeingDefined(lldb::opaque_compiler_type_t type) {
3827 if (!type)
3828 return false;
3829 clang::QualType qual_type(GetCanonicalQualType(type));
3830 const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type);
3831 if (tag_type)
3832 return tag_type->isBeingDefined();
3833 return false;
3834}
3835
3836bool ClangASTContext::IsObjCObjectPointerType(const CompilerType &type,
3837 CompilerType *class_type_ptr) {
3838 if (!type)
3839 return false;
3840
3841 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3842
3843 if (!qual_type.isNull() && qual_type->isObjCObjectPointerType()) {
3844 if (class_type_ptr) {
3845 if (!qual_type->isObjCClassType() && !qual_type->isObjCIdType()) {
3846 const clang::ObjCObjectPointerType *obj_pointer_type =
3847 llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type);
3848 if (obj_pointer_type == nullptr)
3849 class_type_ptr->Clear();
3850 else
3851 class_type_ptr->SetCompilerType(
3852 type.GetTypeSystem(),
3853 clang::QualType(obj_pointer_type->getInterfaceType(), 0)
3854 .getAsOpaquePtr());
3855 }
3856 }
3857 return true;
3858 }
3859 if (class_type_ptr)
3860 class_type_ptr->Clear();
3861 return false;
3862}
3863
3864bool ClangASTContext::GetObjCClassName(const CompilerType &type,
3865 std::string &class_name) {
3866 if (!type)
3867 return false;
3868
3869 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3870
3871 const clang::ObjCObjectType *object_type =
3872 llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
3873 if (object_type) {
3874 const clang::ObjCInterfaceDecl *interface = object_type->getInterface();
3875 if (interface) {
3876 class_name = interface->getNameAsString();
3877 return true;
3878 }
3879 }
3880 return false;
3881}
3882
3883//----------------------------------------------------------------------
3884// Type Completion
3885//----------------------------------------------------------------------
3886
3887bool ClangASTContext::GetCompleteType(lldb::opaque_compiler_type_t type) {
3888 if (!type)
3889 return false;
3890 const bool allow_completion = true;
3891 return GetCompleteQualType(getASTContext(), GetQualType(type),
3892 allow_completion);
3893}
3894
3895ConstString ClangASTContext::GetTypeName(lldb::opaque_compiler_type_t type) {
3896 std::string type_name;
3897 if (type) {
3898 clang::PrintingPolicy printing_policy(getASTContext()->getPrintingPolicy());
3899 clang::QualType qual_type(GetQualType(type));
3900 printing_policy.SuppressTagKeyword = true;
3901 const clang::TypedefType *typedef_type =
3902 qual_type->getAs<clang::TypedefType>();
3903 if (typedef_type) {
3904 const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl();
3905 type_name = typedef_decl->getQualifiedNameAsString();
3906 } else {
3907 type_name = qual_type.getAsString(printing_policy);
3908 }
3909 }
3910 return ConstString(type_name);
3911}
3912
3913uint32_t
3914ClangASTContext::GetTypeInfo(lldb::opaque_compiler_type_t type,
3915 CompilerType *pointee_or_element_clang_type) {
3916 if (!type)
3917 return 0;
3918
3919 if (pointee_or_element_clang_type)
3920 pointee_or_element_clang_type->Clear();
3921
3922 clang::QualType qual_type(GetQualType(type));
3923
3924 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3925 switch (type_class) {
3926 case clang::Type::Attributed:
3927 return GetTypeInfo(
3928 qual_type->getAs<clang::AttributedType>()
3929 ->getModifiedType().getAsOpaquePtr(),
3930 pointee_or_element_clang_type);
3931 case clang::Type::Builtin: {
3932 const clang::BuiltinType *builtin_type = llvm::dyn_cast<clang::BuiltinType>(
3933 qual_type->getCanonicalTypeInternal());
3934
3935 uint32_t builtin_type_flags = eTypeIsBuiltIn | eTypeHasValue;
3936 switch (builtin_type->getKind()) {
3937 case clang::BuiltinType::ObjCId:
3938 case clang::BuiltinType::ObjCClass:
3939 if (pointee_or_element_clang_type)
3940 pointee_or_element_clang_type->SetCompilerType(
3941 getASTContext(), getASTContext()->ObjCBuiltinClassTy);
3942 builtin_type_flags |= eTypeIsPointer | eTypeIsObjC;
3943 break;
3944
3945 case clang::BuiltinType::ObjCSel:
3946 if (pointee_or_element_clang_type)
3947 pointee_or_element_clang_type->SetCompilerType(getASTContext(),
3948 getASTContext()->CharTy);
3949 builtin_type_flags |= eTypeIsPointer | eTypeIsObjC;
3950 break;
3951
3952 case clang::BuiltinType::Bool:
3953 case clang::BuiltinType::Char_U:
3954 case clang::BuiltinType::UChar:
3955 case clang::BuiltinType::WChar_U:
3956 case clang::BuiltinType::Char16:
3957 case clang::BuiltinType::Char32:
3958 case clang::BuiltinType::UShort:
3959 case clang::BuiltinType::UInt:
3960 case clang::BuiltinType::ULong:
3961 case clang::BuiltinType::ULongLong:
3962 case clang::BuiltinType::UInt128:
3963 case clang::BuiltinType::Char_S:
3964 case clang::BuiltinType::SChar:
3965 case clang::BuiltinType::WChar_S:
3966 case clang::BuiltinType::Short:
3967 case clang::BuiltinType::Int:
3968 case clang::BuiltinType::Long:
3969 case clang::BuiltinType::LongLong:
3970 case clang::BuiltinType::Int128:
3971 case clang::BuiltinType::Float:
3972 case clang::BuiltinType::Double:
3973 case clang::BuiltinType::LongDouble:
3974 builtin_type_flags |= eTypeIsScalar;
3975 if (builtin_type->isInteger()) {
3976 builtin_type_flags |= eTypeIsInteger;
3977 if (builtin_type->isSignedInteger())
3978 builtin_type_flags |= eTypeIsSigned;
3979 } else if (builtin_type->isFloatingPoint())
3980 builtin_type_flags |= eTypeIsFloat;
3981 break;
3982 default:
3983 break;
3984 }
3985 return builtin_type_flags;
3986 }
3987
3988 case clang::Type::BlockPointer:
3989 if (pointee_or_element_clang_type)
3990 pointee_or_element_clang_type->SetCompilerType(
3991 getASTContext(), qual_type->getPointeeType());
3992 return eTypeIsPointer | eTypeHasChildren | eTypeIsBlock;
3993
3994 case clang::Type::Complex: {
3995 uint32_t complex_type_flags =
3996 eTypeIsBuiltIn | eTypeHasValue | eTypeIsComplex;
3997 const clang::ComplexType *complex_type = llvm::dyn_cast<clang::ComplexType>(
3998 qual_type->getCanonicalTypeInternal());
3999 if (complex_type) {
4000 clang::QualType complex_element_type(complex_type->getElementType());
4001 if (complex_element_type->isIntegerType())
4002 complex_type_flags |= eTypeIsFloat;
4003 else if (complex_element_type->isFloatingType())
4004 complex_type_flags |= eTypeIsInteger;
4005 }
4006 return complex_type_flags;
4007 } break;
4008
4009 case clang::Type::ConstantArray:
4010 case clang::Type::DependentSizedArray:
4011 case clang::Type::IncompleteArray:
4012 case clang::Type::VariableArray:
4013 if (pointee_or_element_clang_type)
4014 pointee_or_element_clang_type->SetCompilerType(
4015 getASTContext(), llvm::cast<clang::ArrayType>(qual_type.getTypePtr())
4016 ->getElementType());
4017 return eTypeHasChildren | eTypeIsArray;
4018
4019 case clang::Type::DependentName:
4020 return 0;
4021 case clang::Type::DependentSizedExtVector:
4022 return eTypeHasChildren | eTypeIsVector;
4023 case clang::Type::DependentTemplateSpecialization:
4024 return eTypeIsTemplate;
4025 case clang::Type::Decltype:
4026 return CompilerType(
4027 getASTContext(),
4028 llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType())
4029 .GetTypeInfo(pointee_or_element_clang_type);
4030
4031 case clang::Type::Enum:
4032 if (pointee_or_element_clang_type)
4033 pointee_or_element_clang_type->SetCompilerType(
4034 getASTContext(),
4035 llvm::cast<clang::EnumType>(qual_type)->getDecl()->getIntegerType());
4036 return eTypeIsEnumeration | eTypeHasValue;
4037
4038 case clang::Type::Auto:
4039 return CompilerType(
4040 getASTContext(),
4041 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
4042 .GetTypeInfo(pointee_or_element_clang_type);
4043 case clang::Type::Elaborated:
4044 return CompilerType(
4045 getASTContext(),
4046 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
4047 .GetTypeInfo(pointee_or_element_clang_type);
4048 case clang::Type::Paren:
4049 return CompilerType(getASTContext(),
4050 llvm::cast<clang::ParenType>(qual_type)->desugar())
4051 .GetTypeInfo(pointee_or_element_clang_type);
4052
4053 case clang::Type::FunctionProto:
4054 return eTypeIsFuncPrototype | eTypeHasValue;
4055 case clang::Type::FunctionNoProto:
4056 return eTypeIsFuncPrototype | eTypeHasValue;
4057 case clang::Type::InjectedClassName:
4058 return 0;
4059
4060 case clang::Type::LValueReference:
4061 case clang::Type::RValueReference:
4062 if (pointee_or_element_clang_type)
4063 pointee_or_element_clang_type->SetCompilerType(
4064 getASTContext(),
4065 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr())
4066 ->getPointeeType());
4067 return eTypeHasChildren | eTypeIsReference | eTypeHasValue;
4068
4069 case clang::Type::MemberPointer:
4070 return eTypeIsPointer | eTypeIsMember | eTypeHasValue;
4071
4072 case clang::Type::ObjCObjectPointer:
4073 if (pointee_or_element_clang_type)
4074 pointee_or_element_clang_type->SetCompilerType(
4075 getASTContext(), qual_type->getPointeeType());
4076 return eTypeHasChildren | eTypeIsObjC | eTypeIsClass | eTypeIsPointer |
4077 eTypeHasValue;
4078
4079 case clang::Type::ObjCObject:
4080 return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
4081 case clang::Type::ObjCInterface:
4082 return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
4083
4084 case clang::Type::Pointer:
4085 if (pointee_or_element_clang_type)
4086 pointee_or_element_clang_type->SetCompilerType(
4087 getASTContext(), qual_type->getPointeeType());
4088 return eTypeHasChildren | eTypeIsPointer | eTypeHasValue;
4089
4090 case clang::Type::Record:
4091 if (qual_type->getAsCXXRecordDecl())
4092 return eTypeHasChildren | eTypeIsClass | eTypeIsCPlusPlus;
4093 else
4094 return eTypeHasChildren | eTypeIsStructUnion;
4095 break;
4096 case clang::Type::SubstTemplateTypeParm:
4097 return eTypeIsTemplate;
4098 case clang::Type::TemplateTypeParm:
4099 return eTypeIsTemplate;
4100 case clang::Type::TemplateSpecialization:
4101 return eTypeIsTemplate;
4102
4103 case clang::Type::Typedef:
4104 return eTypeIsTypedef |
4105 CompilerType(getASTContext(),
4106 llvm::cast<clang::TypedefType>(qual_type)
4107 ->getDecl()
4108 ->getUnderlyingType())
4109 .GetTypeInfo(pointee_or_element_clang_type);
4110 case clang::Type::TypeOfExpr:
4111 return CompilerType(getASTContext(),
4112 llvm::cast<clang::TypeOfExprType>(qual_type)
4113 ->getUnderlyingExpr()
4114 ->getType())
4115 .GetTypeInfo(pointee_or_element_clang_type);
4116 case clang::Type::TypeOf:
4117 return CompilerType(
4118 getASTContext(),
4119 llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
4120 .GetTypeInfo(pointee_or_element_clang_type);
4121 case clang::Type::UnresolvedUsing:
4122 return 0;
4123
4124 case clang::Type::ExtVector:
4125 case clang::Type::Vector: {
4126 uint32_t vector_type_flags = eTypeHasChildren | eTypeIsVector;
4127 const clang::VectorType *vector_type = llvm::dyn_cast<clang::VectorType>(
4128 qual_type->getCanonicalTypeInternal());
4129 if (vector_type) {
4130 if (vector_type->isIntegerType())
4131 vector_type_flags |= eTypeIsFloat;
4132 else if (vector_type->isFloatingType())
4133 vector_type_flags |= eTypeIsInteger;
4134 }
4135 return vector_type_flags;
4136 }
4137 default:
4138 return 0;
4139 }
4140 return 0;
4141}
4142
4143lldb::LanguageType
4144ClangASTContext::GetMinimumLanguage(lldb::opaque_compiler_type_t type) {
4145 if (!type)
4146 return lldb::eLanguageTypeC;
4147
4148 // If the type is a reference, then resolve it to what it refers to first:
4149 clang::QualType qual_type(GetCanonicalQualType(type).getNonReferenceType());
4150 if (qual_type->isAnyPointerType()) {
4151 if (qual_type->isObjCObjectPointerType())
4152 return lldb::eLanguageTypeObjC;
4153
4154 clang::QualType pointee_type(qual_type->getPointeeType());
4155 if (pointee_type->getPointeeCXXRecordDecl() != nullptr)
4156 return lldb::eLanguageTypeC_plus_plus;
4157 if (pointee_type->isObjCObjectOrInterfaceType())
4158 return lldb::eLanguageTypeObjC;
4159 if (pointee_type->isObjCClassType())
4160 return lldb::eLanguageTypeObjC;
4161 if (pointee_type.getTypePtr() ==
4162 getASTContext()->ObjCBuiltinIdTy.getTypePtr())
4163 return lldb::eLanguageTypeObjC;
4164 } else {
4165 if (qual_type->isObjCObjectOrInterfaceType())
4166 return lldb::eLanguageTypeObjC;
4167 if (qual_type->getAsCXXRecordDecl())
4168 return lldb::eLanguageTypeC_plus_plus;
4169 switch (qual_type->getTypeClass()) {
4170 default:
4171 break;
4172 case clang::Type::Builtin:
4173 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
4174 default:
4175 case clang::BuiltinType::Void:
4176 case clang::BuiltinType::Bool:
4177 case clang::BuiltinType::Char_U:
4178 case clang::BuiltinType::UChar:
4179 case clang::BuiltinType::WChar_U:
4180 case clang::BuiltinType::Char16:
4181 case clang::BuiltinType::Char32:
4182 case clang::BuiltinType::UShort:
4183 case clang::BuiltinType::UInt:
4184 case clang::BuiltinType::ULong:
4185 case clang::BuiltinType::ULongLong:
4186 case clang::BuiltinType::UInt128:
4187 case clang::BuiltinType::Char_S:
4188 case clang::BuiltinType::SChar:
4189 case clang::BuiltinType::WChar_S:
4190 case clang::BuiltinType::Short:
4191 case clang::BuiltinType::Int:
4192 case clang::BuiltinType::Long:
4193 case clang::BuiltinType::LongLong:
4194 case clang::BuiltinType::Int128:
4195 case clang::BuiltinType::Float:
4196 case clang::BuiltinType::Double:
4197 case clang::BuiltinType::LongDouble:
4198 break;
4199
4200 case clang::BuiltinType::NullPtr:
4201 return eLanguageTypeC_plus_plus;
4202
4203 case clang::BuiltinType::ObjCId:
4204 case clang::BuiltinType::ObjCClass:
4205 case clang::BuiltinType::ObjCSel:
4206 return eLanguageTypeObjC;
4207
4208 case clang::BuiltinType::Dependent:
4209 case clang::BuiltinType::Overload:
4210 case clang::BuiltinType::BoundMember:
4211 case clang::BuiltinType::UnknownAny:
4212 break;
4213 }
4214 break;
4215 case clang::Type::Typedef:
4216 return CompilerType(getASTContext(),
4217 llvm::cast<clang::TypedefType>(qual_type)
4218 ->getDecl()
4219 ->getUnderlyingType())
4220 .GetMinimumLanguage();
4221 }
4222 }
4223 return lldb::eLanguageTypeC;
4224}
4225
4226lldb::TypeClass
4227ClangASTContext::GetTypeClass(lldb::opaque_compiler_type_t type) {
4228 if (!type)
4229 return lldb::eTypeClassInvalid;
4230
4231 clang::QualType qual_type(GetQualType(type));
4232
4233 switch (qual_type->getTypeClass()) {
4234 case clang::Type::UnaryTransform:
4235 break;
4236 case clang::Type::FunctionNoProto:
4237 return lldb::eTypeClassFunction;
4238 case clang::Type::FunctionProto:
4239 return lldb::eTypeClassFunction;
4240 case clang::Type::IncompleteArray:
4241 return lldb::eTypeClassArray;
4242 case clang::Type::VariableArray:
4243 return lldb::eTypeClassArray;
4244 case clang::Type::ConstantArray:
4245 return lldb::eTypeClassArray;
4246 case clang::Type::DependentSizedArray:
4247 return lldb::eTypeClassArray;
4248 case clang::Type::DependentSizedExtVector:
4249 return lldb::eTypeClassVector;
4250 case clang::Type::DependentVector:
4251 return lldb::eTypeClassVector;
4252 case clang::Type::ExtVector:
4253 return lldb::eTypeClassVector;
4254 case clang::Type::Vector:
4255 return lldb::eTypeClassVector;
4256 case clang::Type::Builtin:
4257 return lldb::eTypeClassBuiltin;
4258 case clang::Type::ObjCObjectPointer:
4259 return lldb::eTypeClassObjCObjectPointer;
4260 case clang::Type::BlockPointer:
4261 return lldb::eTypeClassBlockPointer;
4262 case clang::Type::Pointer:
4263 return lldb::eTypeClassPointer;
4264 case clang::Type::LValueReference:
4265 return lldb::eTypeClassReference;
4266 case clang::Type::RValueReference:
4267 return lldb::eTypeClassReference;
4268 case clang::Type::MemberPointer:
4269 return lldb::eTypeClassMemberPointer;
4270 case clang::Type::Complex:
4271 if (qual_type->isComplexType())
4272 return lldb::eTypeClassComplexFloat;
4273 else
4274 return lldb::eTypeClassComplexInteger;
4275 case clang::Type::ObjCObject:
4276 return lldb::eTypeClassObjCObject;
4277 case clang::Type::ObjCInterface:
4278 return lldb::eTypeClassObjCInterface;
4279 case clang::Type::Record: {
4280 const clang::RecordType *record_type =
4281 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
4282 const clang::RecordDecl *record_decl = record_type->getDecl();
4283 if (record_decl->isUnion())
4284 return lldb::eTypeClassUnion;
4285 else if (record_decl->isStruct())
4286 return lldb::eTypeClassStruct;
4287 else
4288 return lldb::eTypeClassClass;
4289 } break;
4290 case clang::Type::Enum:
4291 return lldb::eTypeClassEnumeration;
4292 case clang::Type::Typedef:
4293 return lldb::eTypeClassTypedef;
4294 case clang::Type::UnresolvedUsing:
4295 break;
4296 case clang::Type::Paren:
4297 return CompilerType(getASTContext(),
4298 llvm::cast<clang::ParenType>(qual_type)->desugar())
4299 .GetTypeClass();
4300 case clang::Type::Auto:
4301 return CompilerType(
4302 getASTContext(),
4303 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
4304 .GetTypeClass();
4305 case clang::Type::Elaborated:
4306 return CompilerType(
4307 getASTContext(),
4308 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
4309 .GetTypeClass();
4310
4311 case clang::Type::Attributed:
4312 break;
4313 case clang::Type::TemplateTypeParm:
4314 break;
4315 case clang::Type::SubstTemplateTypeParm:
4316 break;
4317 case clang::Type::SubstTemplateTypeParmPack:
4318 break;
4319 case clang::Type::InjectedClassName:
4320 break;
4321 case clang::Type::DependentName:
4322 break;
4323 case clang::Type::DependentTemplateSpecialization:
4324 break;
4325 case clang::Type::PackExpansion:
4326 break;
4327
4328 case clang::Type::TypeOfExpr:
4329 return CompilerType(getASTContext(),
4330 llvm::cast<clang::TypeOfExprType>(qual_type)
4331 ->getUnderlyingExpr()
4332 ->getType())
4333 .GetTypeClass();
4334 case clang::Type::TypeOf:
4335 return CompilerType(
4336 getASTContext(),
4337 llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
4338 .GetTypeClass();
4339 case clang::Type::Decltype:
4340 return CompilerType(
4341 getASTContext(),
4342 llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
4343 .GetTypeClass();
4344 case clang::Type::TemplateSpecialization:
4345 break;
4346 case clang::Type::DeducedTemplateSpecialization:
4347 break;
4348 case clang::Type::Atomic:
4349 break;
4350 case clang::Type::Pipe:
4351 break;
4352
4353 // pointer type decayed from an array or function type.
4354 case clang::Type::Decayed:
4355 break;
4356 case clang::Type::Adjusted:
4357 break;
4358 case clang::Type::ObjCTypeParam:
4359 break;
4360
4361 case clang::Type::DependentAddressSpace:
4362 break;
4363 }
4364 // We don't know hot to display this type...
4365 return lldb::eTypeClassOther;
4366}
4367
4368unsigned ClangASTContext::GetTypeQualifiers(lldb::opaque_compiler_type_t type) {
4369 if (type)
4370 return GetQualType(type).getQualifiers().getCVRQualifiers();
4371 return 0;
4372}
4373
4374//----------------------------------------------------------------------
4375// Creating related types
4376//----------------------------------------------------------------------
4377
4378CompilerType
4379ClangASTContext::GetArrayElementType(lldb::opaque_compiler_type_t type,
4380 uint64_t *stride) {
4381 if (type) {
4382 clang::QualType qual_type(GetCanonicalQualType(type));
4383
4384 const clang::Type *array_eletype =
4385 qual_type.getTypePtr()->getArrayElementTypeNoTypeQual();
4386
4387 if (!array_eletype)
4388 return CompilerType();
4389
4390 CompilerType element_type(getASTContext(),
4391 array_eletype->getCanonicalTypeUnqualified());
4392
4393 // TODO: the real stride will be >= this value.. find the real one!
4394 if (stride)
4395 *stride = element_type.GetByteSize(nullptr);
4396
4397 return element_type;
4398 }
4399 return CompilerType();
4400}
4401
4402CompilerType ClangASTContext::GetArrayType(lldb::opaque_compiler_type_t type,
4403 uint64_t size) {
4404 if (type) {
4405 clang::QualType qual_type(GetCanonicalQualType(type));
4406 if (clang::ASTContext *ast_ctx = getASTContext()) {
4407 if (size != 0)
4408 return CompilerType(
4409 ast_ctx, ast_ctx->getConstantArrayType(
4410 qual_type, llvm::APInt(64, size),
4411 clang::ArrayType::ArraySizeModifier::Normal, 0));
4412 else
4413 return CompilerType(
4414 ast_ctx,
4415 ast_ctx->getIncompleteArrayType(
4416 qual_type, clang::ArrayType::ArraySizeModifier::Normal, 0));
4417 }
4418 }
4419
4420 return CompilerType();
4421}
4422
4423CompilerType
4424ClangASTContext::GetCanonicalType(lldb::opaque_compiler_type_t type) {
4425 if (type)
4426 return CompilerType(getASTContext(), GetCanonicalQualType(type));
4427 return CompilerType();
4428}
4429
4430static clang::QualType GetFullyUnqualifiedType_Impl(clang::ASTContext *ast,
4431 clang::QualType qual_type) {
4432 if (qual_type->isPointerType())
4433 qual_type = ast->getPointerType(
4434 GetFullyUnqualifiedType_Impl(ast, qual_type->getPointeeType()));
4435 else
4436 qual_type = qual_type.getUnqualifiedType();
4437 qual_type.removeLocalConst();
4438 qual_type.removeLocalRestrict();
4439 qual_type.removeLocalVolatile();
4440 return qual_type;
4441}
4442
4443CompilerType
4444ClangASTContext::GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) {
4445 if (type)
4446 return CompilerType(
4447 getASTContext(),
4448 GetFullyUnqualifiedType_Impl(getASTContext(), GetQualType(type)));
4449 return CompilerType();
4450}
4451
4452int ClangASTContext::GetFunctionArgumentCount(
4453 lldb::opaque_compiler_type_t type) {
4454 if (type) {
4455 const clang::FunctionProtoType *func =
4456 llvm::dyn_cast<clang::FunctionProtoType>(GetCanonicalQualType(type));
4457 if (func)
4458 return func->getNumParams();
4459 }
4460 return -1;
4461}
4462
4463CompilerType ClangASTContext::GetFunctionArgumentTypeAtIndex(
4464 lldb::opaque_compiler_type_t type, size_t idx) {
4465 if (type) {
4466 const clang::FunctionProtoType *func =
4467 llvm::dyn_cast<clang::FunctionProtoType>(GetQualType(type));
4468 if (func) {
4469 const uint32_t num_args = func->getNumParams();
4470 if (idx < num_args)
4471 return CompilerType(getASTContext(), func->getParamType(idx));
4472 }
4473 }
4474 return CompilerType();
4475}
4476
4477CompilerType
4478ClangASTContext::GetFunctionReturnType(lldb::opaque_compiler_type_t type) {
4479 if (type) {
4480 clang::QualType qual_type(GetQualType(type));
4481 const clang::FunctionProtoType *func =
4482 llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
4483 if (func)
4484 return CompilerType(getASTContext(), func->getReturnType());
4485 }
4486 return CompilerType();
4487}
4488
4489size_t
4490ClangASTContext::GetNumMemberFunctions(lldb::opaque_compiler_type_t type) {
4491 size_t num_functions = 0;
4492 if (type) {
4493 clang::QualType qual_type(GetCanonicalQualType(type));
4494 switch (qual_type->getTypeClass()) {
4495 case clang::Type::Record:
4496 if (GetCompleteQualType(getASTContext(), qual_type)) {
4497 const clang::RecordType *record_type =
4498 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
4499 const clang::RecordDecl *record_decl = record_type->getDecl();
4500 assert(record_decl)((record_decl) ? static_cast<void> (0) : __assert_fail (
"record_decl", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 4500, __PRETTY_FUNCTION__))
;
4501 const clang::CXXRecordDecl *cxx_record_decl =
4502 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
4503 if (cxx_record_decl)
4504 num_functions = std::distance(cxx_record_decl->method_begin(),
4505 cxx_record_decl->method_end());
4506 }
4507 break;
4508
4509 case clang::Type::ObjCObjectPointer: {
4510 const clang::ObjCObjectPointerType *objc_class_type =
4511 qual_type->getAs<clang::ObjCObjectPointerType>();
4512 const clang::ObjCInterfaceType *objc_interface_type =
4513 objc_class_type->getInterfaceType();
4514 if (objc_interface_type &&
4515 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
4516 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
4517 clang::ObjCInterfaceDecl *class_interface_decl =
4518 objc_interface_type->getDecl();
4519 if (class_interface_decl) {
4520 num_functions = std::distance(class_interface_decl->meth_begin(),
4521 class_interface_decl->meth_end());
4522 }
4523 }
4524 break;
4525 }
4526
4527 case clang::Type::ObjCObject:
4528 case clang::Type::ObjCInterface:
4529 if (GetCompleteType(type)) {
4530 const clang::ObjCObjectType *objc_class_type =
4531 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
4532 if (objc_class_type) {
4533 clang::ObjCInterfaceDecl *class_interface_decl =
4534 objc_class_type->getInterface();
4535 if (class_interface_decl)
4536 num_functions = std::distance(class_interface_decl->meth_begin(),
4537 class_interface_decl->meth_end());
4538 }
4539 }
4540 break;
4541
4542 case clang::Type::Typedef:
4543 return CompilerType(getASTContext(),
4544 llvm::cast<clang::TypedefType>(qual_type)
4545 ->getDecl()
4546 ->getUnderlyingType())
4547 .GetNumMemberFunctions();
4548
4549 case clang::Type::Auto:
4550 return CompilerType(
4551 getASTContext(),
4552 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
4553 .GetNumMemberFunctions();
4554
4555 case clang::Type::Elaborated:
4556 return CompilerType(
4557 getASTContext(),
4558 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
4559 .GetNumMemberFunctions();
4560
4561 case clang::Type::Paren:
4562 return CompilerType(getASTContext(),
4563 llvm::cast<clang::ParenType>(qual_type)->desugar())
4564 .GetNumMemberFunctions();
4565
4566 default:
4567 break;
4568 }
4569 }
4570 return num_functions;
4571}
4572
4573TypeMemberFunctionImpl
4574ClangASTContext::GetMemberFunctionAtIndex(lldb::opaque_compiler_type_t type,
4575 size_t idx) {
4576 std::string name;
4577 MemberFunctionKind kind(MemberFunctionKind::eMemberFunctionKindUnknown);
4578 CompilerType clang_type;
4579 CompilerDecl clang_decl;
4580 if (type) {
4581 clang::QualType qual_type(GetCanonicalQualType(type));
4582 switch (qual_type->getTypeClass()) {
4583 case clang::Type::Record:
4584 if (GetCompleteQualType(getASTContext(), qual_type)) {
4585 const clang::RecordType *record_type =
4586 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
4587 const clang::RecordDecl *record_decl = record_type->getDecl();
4588 assert(record_decl)((record_decl) ? static_cast<void> (0) : __assert_fail (
"record_decl", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 4588, __PRETTY_FUNCTION__))
;
4589 const clang::CXXRecordDecl *cxx_record_decl =
4590 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
4591 if (cxx_record_decl) {
4592 auto method_iter = cxx_record_decl->method_begin();
4593 auto method_end = cxx_record_decl->method_end();
4594 if (idx <
4595 static_cast<size_t>(std::distance(method_iter, method_end))) {
4596 std::advance(method_iter, idx);
4597 clang::CXXMethodDecl *cxx_method_decl =
4598 method_iter->getCanonicalDecl();
4599 if (cxx_method_decl) {
4600 name = cxx_method_decl->getDeclName().getAsString();
4601 if (cxx_method_decl->isStatic())
4602 kind = lldb::eMemberFunctionKindStaticMethod;
4603 else if (llvm::isa<clang::CXXConstructorDecl>(cxx_method_decl))
4604 kind = lldb::eMemberFunctionKindConstructor;
4605 else if (llvm::isa<clang::CXXDestructorDecl>(cxx_method_decl))
4606 kind = lldb::eMemberFunctionKindDestructor;
4607 else
4608 kind = lldb::eMemberFunctionKindInstanceMethod;
4609 clang_type = CompilerType(
4610 this, cxx_method_decl->getType().getAsOpaquePtr());
4611 clang_decl = CompilerDecl(this, cxx_method_decl);
4612 }
4613 }
4614 }
4615 }
4616 break;
4617
4618 case clang::Type::ObjCObjectPointer: {
4619 const clang::ObjCObjectPointerType *objc_class_type =
4620 qual_type->getAs<clang::ObjCObjectPointerType>();
4621 const clang::ObjCInterfaceType *objc_interface_type =
4622 objc_class_type->getInterfaceType();
4623 if (objc_interface_type &&
4624 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
4625 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
4626 clang::ObjCInterfaceDecl *class_interface_decl =
4627 objc_interface_type->getDecl();
4628 if (class_interface_decl) {
4629 auto method_iter = class_interface_decl->meth_begin();
4630 auto method_end = class_interface_decl->meth_end();
4631 if (idx <
4632 static_cast<size_t>(std::distance(method_iter, method_end))) {
4633 std::advance(method_iter, idx);
4634 clang::ObjCMethodDecl *objc_method_decl =
4635 method_iter->getCanonicalDecl();
4636 if (objc_method_decl) {
4637 clang_decl = CompilerDecl(this, objc_method_decl);
4638 name = objc_method_decl->getSelector().getAsString();
4639 if (objc_method_decl->isClassMethod())
4640 kind = lldb::eMemberFunctionKindStaticMethod;
4641 else
4642 kind = lldb::eMemberFunctionKindInstanceMethod;
4643 }
4644 }
4645 }
4646 }
4647 break;
4648 }
4649
4650 case clang::Type::ObjCObject:
4651 case clang::Type::ObjCInterface:
4652 if (GetCompleteType(type)) {
4653 const clang::ObjCObjectType *objc_class_type =
4654 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
4655 if (objc_class_type) {
4656 clang::ObjCInterfaceDecl *class_interface_decl =
4657 objc_class_type->getInterface();
4658 if (class_interface_decl) {
4659 auto method_iter = class_interface_decl->meth_begin();
4660 auto method_end = class_interface_decl->meth_end();
4661 if (idx <
4662 static_cast<size_t>(std::distance(method_iter, method_end))) {
4663 std::advance(method_iter, idx);
4664 clang::ObjCMethodDecl *objc_method_decl =
4665 method_iter->getCanonicalDecl();
4666 if (objc_method_decl) {
4667 clang_decl = CompilerDecl(this, objc_method_decl);
4668 name = objc_method_decl->getSelector().getAsString();
4669 if (objc_method_decl->isClassMethod())
4670 kind = lldb::eMemberFunctionKindStaticMethod;
4671 else
4672 kind = lldb::eMemberFunctionKindInstanceMethod;
4673 }
4674 }
4675 }
4676 }
4677 }
4678 break;
4679
4680 case clang::Type::Typedef:
4681 return GetMemberFunctionAtIndex(llvm::cast<clang::TypedefType>(qual_type)
4682 ->getDecl()
4683 ->getUnderlyingType()
4684 .getAsOpaquePtr(),
4685 idx);
4686
4687 case clang::Type::Auto:
4688 return GetMemberFunctionAtIndex(llvm::cast<clang::AutoType>(qual_type)
4689 ->getDeducedType()
4690 .getAsOpaquePtr(),
4691 idx);
4692
4693 case clang::Type::Elaborated:
4694 return GetMemberFunctionAtIndex(
4695 llvm::cast<clang::ElaboratedType>(qual_type)
4696 ->getNamedType()
4697 .getAsOpaquePtr(),
4698 idx);
4699
4700 case clang::Type::Paren:
4701 return GetMemberFunctionAtIndex(
4702 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
4703 idx);
4704
4705 default:
4706 break;
4707 }
4708 }
4709
4710 if (kind == eMemberFunctionKindUnknown)
4711 return TypeMemberFunctionImpl();
4712 else
4713 return TypeMemberFunctionImpl(clang_type, clang_decl, name, kind);
4714}
4715
4716CompilerType
4717ClangASTContext::GetNonReferenceType(lldb::opaque_compiler_type_t type) {
4718 if (type)
4719 return CompilerType(getASTContext(),
4720 GetQualType(type).getNonReferenceType());
4721 return CompilerType();
4722}
4723
4724CompilerType ClangASTContext::CreateTypedefType(
4725 const CompilerType &type, const char *typedef_name,
4726 const CompilerDeclContext &compiler_decl_ctx) {
4727 if (type && typedef_name && typedef_name[0]) {
4728 ClangASTContext *ast =
4729 llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
4730 if (!ast)
4731 return CompilerType();
4732 clang::ASTContext *clang_ast = ast->getASTContext();
4733 clang::QualType qual_type(ClangUtil::GetQualType(type));
4734
4735 clang::DeclContext *decl_ctx =
4736 ClangASTContext::DeclContextGetAsDeclContext(compiler_decl_ctx);
4737 if (decl_ctx == nullptr)
4738 decl_ctx = ast->getASTContext()->getTranslationUnitDecl();
4739
4740 clang::TypedefDecl *decl = clang::TypedefDecl::Create(
4741 *clang_ast, decl_ctx, clang::SourceLocation(), clang::SourceLocation(),
4742 &clang_ast->Idents.get(typedef_name),
4743 clang_ast->getTrivialTypeSourceInfo(qual_type));
4744
4745 decl->setAccess(clang::AS_public); // TODO respect proper access specifier
4746
4747 decl_ctx->addDecl(decl);
4748
4749 // Get a uniqued clang::QualType for the typedef decl type
4750 return CompilerType(clang_ast, clang_ast->getTypedefType(decl));
4751 }
4752 return CompilerType();
4753}
4754
4755CompilerType
4756ClangASTContext::GetPointeeType(lldb::opaque_compiler_type_t type) {
4757 if (type) {
4758 clang::QualType qual_type(GetQualType(type));
4759 return CompilerType(getASTContext(),
4760 qual_type.getTypePtr()->getPointeeType());
4761 }
4762 return CompilerType();
4763}
4764
4765CompilerType
4766ClangASTContext::GetPointerType(lldb::opaque_compiler_type_t type) {
4767 if (type) {
4768 clang::QualType qual_type(GetQualType(type));
4769
4770 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
4771 switch (type_class) {
4772 case clang::Type::ObjCObject:
4773 case clang::Type::ObjCInterface:
4774 return CompilerType(getASTContext(),
4775 getASTContext()->getObjCObjectPointerType(qual_type));
4776
4777 default:
4778 return CompilerType(getASTContext(),
4779 getASTContext()->getPointerType(qual_type));
4780 }
4781 }
4782 return CompilerType();
4783}
4784
4785CompilerType
4786ClangASTContext::GetLValueReferenceType(lldb::opaque_compiler_type_t type) {
4787 if (type)
4788 return CompilerType(this, getASTContext()
4789 ->getLValueReferenceType(GetQualType(type))
4790 .getAsOpaquePtr());
4791 else
4792 return CompilerType();
4793}
4794
4795CompilerType
4796ClangASTContext::GetRValueReferenceType(lldb::opaque_compiler_type_t type) {
4797 if (type)
4798 return CompilerType(this, getASTContext()
4799 ->getRValueReferenceType(GetQualType(type))
4800 .getAsOpaquePtr());
4801 else
4802 return CompilerType();
4803}
4804
4805CompilerType
4806ClangASTContext::AddConstModifier(lldb::opaque_compiler_type_t type) {
4807 if (type) {
4808 clang::QualType result(GetQualType(type));
4809 result.addConst();
4810 return CompilerType(this, result.getAsOpaquePtr());
4811 }
4812 return CompilerType();
4813}
4814
4815CompilerType
4816ClangASTContext::AddVolatileModifier(lldb::opaque_compiler_type_t type) {
4817 if (type) {
4818 clang::QualType result(GetQualType(type));
4819 result.addVolatile();
4820 return CompilerType(this, result.getAsOpaquePtr());
4821 }
4822 return CompilerType();
4823}
4824
4825CompilerType
4826ClangASTContext::AddRestrictModifier(lldb::opaque_compiler_type_t type) {
4827 if (type) {
4828 clang::QualType result(GetQualType(type));
4829 result.addRestrict();
4830 return CompilerType(this, result.getAsOpaquePtr());
4831 }
4832 return CompilerType();
4833}
4834
4835CompilerType
4836ClangASTContext::CreateTypedef(lldb::opaque_compiler_type_t type,
4837 const char *typedef_name,
4838 const CompilerDeclContext &compiler_decl_ctx) {
4839 if (type) {
4840 clang::ASTContext *clang_ast = getASTContext();
4841 clang::QualType qual_type(GetQualType(type));
4842
4843 clang::DeclContext *decl_ctx =
4844 ClangASTContext::DeclContextGetAsDeclContext(compiler_decl_ctx);
4845 if (decl_ctx == nullptr)
4846 decl_ctx = getASTContext()->getTranslationUnitDecl();
4847
4848 clang::TypedefDecl *decl = clang::TypedefDecl::Create(
4849 *clang_ast, decl_ctx, clang::SourceLocation(), clang::SourceLocation(),
4850 &clang_ast->Idents.get(typedef_name),
4851 clang_ast->getTrivialTypeSourceInfo(qual_type));
4852
4853 clang::TagDecl *tdecl = nullptr;
4854 if (!qual_type.isNull()) {
4855 if (const clang::RecordType *rt = qual_type->getAs<clang::RecordType>())
4856 tdecl = rt->getDecl();
4857 if (const clang::EnumType *et = qual_type->getAs<clang::EnumType>())
4858 tdecl = et->getDecl();
4859 }
4860
4861 // Check whether this declaration is an anonymous struct, union, or enum,
4862 // hidden behind a typedef. If so, we try to check whether we have a
4863 // typedef tag to attach to the original record declaration
4864 if (tdecl && !tdecl->getIdentifier() && !tdecl->getTypedefNameForAnonDecl())
4865 tdecl->setTypedefNameForAnonDecl(decl);
4866
4867 decl->setAccess(clang::AS_public); // TODO respect proper access specifier
4868
4869 // Get a uniqued clang::QualType for the typedef decl type
4870 return CompilerType(this, clang_ast->getTypedefType(decl).getAsOpaquePtr());
4871 }
4872 return CompilerType();
4873}
4874
4875CompilerType
4876ClangASTContext::GetTypedefedType(lldb::opaque_compiler_type_t type) {
4877 if (type) {
4878 const clang::TypedefType *typedef_type =
4879 llvm::dyn_cast<clang::TypedefType>(GetQualType(type));
4880 if (typedef_type)
4881 return CompilerType(getASTContext(),
4882 typedef_type->getDecl()->getUnderlyingType());
4883 }
4884 return CompilerType();
4885}
4886
4887//----------------------------------------------------------------------
4888// Create related types using the current type's AST
4889//----------------------------------------------------------------------
4890
4891CompilerType ClangASTContext::GetBasicTypeFromAST(lldb::BasicType basic_type) {
4892 return ClangASTContext::GetBasicType(getASTContext(), basic_type);
4893}
4894//----------------------------------------------------------------------
4895// Exploring the type
4896//----------------------------------------------------------------------
4897
4898uint64_t ClangASTContext::GetBitSize(lldb::opaque_compiler_type_t type,
4899 ExecutionContextScope *exe_scope) {
4900 if (GetCompleteType(type)) {
4901 clang::QualType qual_type(GetCanonicalQualType(type));
4902 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
4903 switch (type_class) {
4904 case clang::Type::Record:
4905 if (GetCompleteType(type))
4906 return getASTContext()->getTypeSize(qual_type);
4907 else
4908 return 0;
4909 break;
4910
4911 case clang::Type::ObjCInterface:
4912 case clang::Type::ObjCObject: {
4913 ExecutionContext exe_ctx(exe_scope);
4914 Process *process = exe_ctx.GetProcessPtr();
4915 if (process) {
4916 ObjCLanguageRuntime *objc_runtime = process->GetObjCLanguageRuntime();
4917 if (objc_runtime) {
4918 uint64_t bit_size = 0;
4919 if (objc_runtime->GetTypeBitSize(
4920 CompilerType(getASTContext(), qual_type), bit_size))
4921 return bit_size;
4922 }
4923 } else {
4924 static bool g_printed = false;
4925 if (!g_printed) {
4926 StreamString s;
4927 DumpTypeDescription(type, &s);
4928
4929 llvm::outs() << "warning: trying to determine the size of type ";
4930 llvm::outs() << s.GetString() << "\n";
4931 llvm::outs() << "without a valid ExecutionContext. this is not "
4932 "reliable. please file a bug against LLDB.\n";
4933 llvm::outs() << "backtrace:\n";
4934 llvm::sys::PrintStackTrace(llvm::outs());
4935 llvm::outs() << "\n";
4936 g_printed = true;
4937 }
4938 }
4939 }
4940 LLVM_FALLTHROUGH[[clang::fallthrough]];
4941 default:
4942 const uint32_t bit_size = getASTContext()->getTypeSize(qual_type);
4943 if (bit_size == 0) {
4944 if (qual_type->isIncompleteArrayType())
4945 return getASTContext()->getTypeSize(
4946 qual_type->getArrayElementTypeNoTypeQual()
4947 ->getCanonicalTypeUnqualified());
4948 }
4949 if (qual_type->isObjCObjectOrInterfaceType())
4950 return bit_size +
4951 getASTContext()->getTypeSize(
4952 getASTContext()->ObjCBuiltinClassTy);
4953 return bit_size;
4954 }
4955 }
4956 return 0;
4957}
4958
4959size_t ClangASTContext::GetTypeBitAlign(lldb::opaque_compiler_type_t type) {
4960 if (GetCompleteType(type))
4961 return getASTContext()->getTypeAlign(GetQualType(type));
4962 return 0;
4963}
4964
4965lldb::Encoding ClangASTContext::GetEncoding(lldb::opaque_compiler_type_t type,
4966 uint64_t &count) {
4967 if (!type)
4968 return lldb::eEncodingInvalid;
4969
4970 count = 1;
4971 clang::QualType qual_type(GetCanonicalQualType(type));
4972
4973 switch (qual_type->getTypeClass()) {
4974 case clang::Type::UnaryTransform:
4975 break;
4976
4977 case clang::Type::FunctionNoProto:
4978 case clang::Type::FunctionProto:
4979 break;
4980
4981 case clang::Type::IncompleteArray:
4982 case clang::Type::VariableArray:
4983 break;
4984
4985 case clang::Type::ConstantArray:
4986 break;
4987
4988 case clang::Type::DependentVector:
4989 case clang::Type::ExtVector:
4990 case clang::Type::Vector:
4991 // TODO: Set this to more than one???
4992 break;
4993
4994 case clang::Type::Builtin:
4995 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
4996 case clang::BuiltinType::Void:
4997 break;
4998
4999 case clang::BuiltinType::Bool:
5000 case clang::BuiltinType::Char_S:
5001 case clang::BuiltinType::SChar:
5002 case clang::BuiltinType::WChar_S:
5003 case clang::BuiltinType::Short:
5004 case clang::BuiltinType::Int:
5005 case clang::BuiltinType::Long:
5006 case clang::BuiltinType::LongLong:
5007 case clang::BuiltinType::Int128:
5008 return lldb::eEncodingSint;
5009
5010 case clang::BuiltinType::Char_U:
5011 case clang::BuiltinType::UChar:
5012 case clang::BuiltinType::WChar_U:
5013 case clang::BuiltinType::Char8:
5014 case clang::BuiltinType::Char16:
5015 case clang::BuiltinType::Char32:
5016 case clang::BuiltinType::UShort:
5017 case clang::BuiltinType::UInt:
5018 case clang::BuiltinType::ULong:
5019 case clang::BuiltinType::ULongLong:
5020 case clang::BuiltinType::UInt128:
5021 return lldb::eEncodingUint;
5022
5023 // Fixed point types. Note that they are currently ignored.
5024 case clang::BuiltinType::ShortAccum:
5025 case clang::BuiltinType::Accum:
5026 case clang::BuiltinType::LongAccum:
5027 case clang::BuiltinType::UShortAccum:
5028 case clang::BuiltinType::UAccum:
5029 case clang::BuiltinType::ULongAccum:
5030 case clang::BuiltinType::ShortFract:
5031 case clang::BuiltinType::Fract:
5032 case clang::BuiltinType::LongFract:
5033 case clang::BuiltinType::UShortFract:
5034 case clang::BuiltinType::UFract:
5035 case clang::BuiltinType::ULongFract:
5036 case clang::BuiltinType::SatShortAccum:
5037 case clang::BuiltinType::SatAccum:
5038 case clang::BuiltinType::SatLongAccum:
5039 case clang::BuiltinType::SatUShortAccum:
5040 case clang::BuiltinType::SatUAccum:
5041 case clang::BuiltinType::SatULongAccum:
5042 case clang::BuiltinType::SatShortFract:
5043 case clang::BuiltinType::SatFract:
5044 case clang::BuiltinType::SatLongFract:
5045 case clang::BuiltinType::SatUShortFract:
5046 case clang::BuiltinType::SatUFract:
5047 case clang::BuiltinType::SatULongFract:
5048 break;
5049
5050 case clang::BuiltinType::Half:
5051 case clang::BuiltinType::Float:
5052 case clang::BuiltinType::Float16:
5053 case clang::BuiltinType::Float128:
5054 case clang::BuiltinType::Double:
5055 case clang::BuiltinType::LongDouble:
5056 return lldb::eEncodingIEEE754;
5057
5058 case clang::BuiltinType::ObjCClass:
5059 case clang::BuiltinType::ObjCId:
5060 case clang::BuiltinType::ObjCSel:
5061 return lldb::eEncodingUint;
5062
5063 case clang::BuiltinType::NullPtr:
5064 return lldb::eEncodingUint;
5065
5066 case clang::BuiltinType::Kind::ARCUnbridgedCast:
5067 case clang::BuiltinType::Kind::BoundMember:
5068 case clang::BuiltinType::Kind::BuiltinFn:
5069 case clang::BuiltinType::Kind::Dependent:
5070 case clang::BuiltinType::Kind::OCLClkEvent:
5071 case clang::BuiltinType::Kind::OCLEvent:
5072 case clang::BuiltinType::Kind::OCLImage1dRO:
5073 case clang::BuiltinType::Kind::OCLImage1dWO:
5074 case clang::BuiltinType::Kind::OCLImage1dRW:
5075 case clang::BuiltinType::Kind::OCLImage1dArrayRO:
5076 case clang::BuiltinType::Kind::OCLImage1dArrayWO:
5077 case clang::BuiltinType::Kind::OCLImage1dArrayRW:
5078 case clang::BuiltinType::Kind::OCLImage1dBufferRO:
5079 case clang::BuiltinType::Kind::OCLImage1dBufferWO:
5080 case clang::BuiltinType::Kind::OCLImage1dBufferRW:
5081 case clang::BuiltinType::Kind::OCLImage2dRO:
5082 case clang::BuiltinType::Kind::OCLImage2dWO:
5083 case clang::BuiltinType::Kind::OCLImage2dRW:
5084 case clang::BuiltinType::Kind::OCLImage2dArrayRO:
5085 case clang::BuiltinType::Kind::OCLImage2dArrayWO:
5086 case clang::BuiltinType::Kind::OCLImage2dArrayRW:
5087 case clang::BuiltinType::Kind::OCLImage2dArrayDepthRO:
5088 case clang::BuiltinType::Kind::OCLImage2dArrayDepthWO:
5089 case clang::BuiltinType::Kind::OCLImage2dArrayDepthRW:
5090 case clang::BuiltinType::Kind::OCLImage2dArrayMSAARO:
5091 case clang::BuiltinType::Kind::OCLImage2dArrayMSAAWO:
5092 case clang::BuiltinType::Kind::OCLImage2dArrayMSAARW:
5093 case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRO:
5094 case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthWO:
5095 case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRW:
5096 case clang::BuiltinType::Kind::OCLImage2dDepthRO:
5097 case clang::BuiltinType::Kind::OCLImage2dDepthWO:
5098 case clang::BuiltinType::Kind::OCLImage2dDepthRW:
5099 case clang::BuiltinType::Kind::OCLImage2dMSAARO:
5100 case clang::BuiltinType::Kind::OCLImage2dMSAAWO:
5101 case clang::BuiltinType::Kind::OCLImage2dMSAARW:
5102 case clang::BuiltinType::Kind::OCLImage2dMSAADepthRO:
5103 case clang::BuiltinType::Kind::OCLImage2dMSAADepthWO:
5104 case clang::BuiltinType::Kind::OCLImage2dMSAADepthRW:
5105 case clang::BuiltinType::Kind::OCLImage3dRO:
5106 case clang::BuiltinType::Kind::OCLImage3dWO:
5107 case clang::BuiltinType::Kind::OCLImage3dRW:
5108 case clang::BuiltinType::Kind::OCLQueue:
5109 case clang::BuiltinType::Kind::OCLReserveID:
5110 case clang::BuiltinType::Kind::OCLSampler:
5111 case clang::BuiltinType::Kind::OMPArraySection:
5112 case clang::BuiltinType::Kind::Overload:
5113 case clang::BuiltinType::Kind::PseudoObject:
5114 case clang::BuiltinType::Kind::UnknownAny:
5115 break;
5116 }
5117 break;
5118 // All pointer types are represented as unsigned integer encodings. We may
5119 // nee to add a eEncodingPointer if we ever need to know the difference
5120 case clang::Type::ObjCObjectPointer:
5121 case clang::Type::BlockPointer:
5122 case clang::Type::Pointer:
5123 case clang::Type::LValueReference:
5124 case clang::Type::RValueReference:
5125 case clang::Type::MemberPointer:
5126 return lldb::eEncodingUint;
5127 case clang::Type::Complex: {
5128 lldb::Encoding encoding = lldb::eEncodingIEEE754;
5129 if (qual_type->isComplexType())
5130 encoding = lldb::eEncodingIEEE754;
5131 else {
5132 const clang::ComplexType *complex_type =
5133 qual_type->getAsComplexIntegerType();
5134 if (complex_type)
5135 encoding = CompilerType(getASTContext(), complex_type->getElementType())
5136 .GetEncoding(count);
5137 else
5138 encoding = lldb::eEncodingSint;
5139 }
5140 count = 2;
5141 return encoding;
5142 }
5143
5144 case clang::Type::ObjCInterface:
5145 break;
5146 case clang::Type::Record:
5147 break;
5148 case clang::Type::Enum:
5149 return lldb::eEncodingSint;
5150 case clang::Type::Typedef:
5151 return CompilerType(getASTContext(),
5152 llvm::cast<clang::TypedefType>(qual_type)
5153 ->getDecl()
5154 ->getUnderlyingType())
5155 .GetEncoding(count);
5156
5157 case clang::Type::Auto:
5158 return CompilerType(
5159 getASTContext(),
5160 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
5161 .GetEncoding(count);
5162
5163 case clang::Type::Elaborated:
5164 return CompilerType(
5165 getASTContext(),
5166 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
5167 .GetEncoding(count);
5168
5169 case clang::Type::Paren:
5170 return CompilerType(getASTContext(),
5171 llvm::cast<clang::ParenType>(qual_type)->desugar())
5172 .GetEncoding(count);
5173 case clang::Type::TypeOfExpr:
5174 return CompilerType(getASTContext(),
5175 llvm::cast<clang::TypeOfExprType>(qual_type)
5176 ->getUnderlyingExpr()
5177 ->getType())
5178 .GetEncoding(count);
5179 case clang::Type::TypeOf:
5180 return CompilerType(
5181 getASTContext(),
5182 llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
5183 .GetEncoding(count);
5184 case clang::Type::Decltype:
5185 return CompilerType(
5186 getASTContext(),
5187 llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType())
5188 .GetEncoding(count);
5189 case clang::Type::DependentSizedArray:
5190 case clang::Type::DependentSizedExtVector:
5191 case clang::Type::UnresolvedUsing:
5192 case clang::Type::Attributed:
5193 case clang::Type::TemplateTypeParm:
5194 case clang::Type::SubstTemplateTypeParm:
5195 case clang::Type::SubstTemplateTypeParmPack:
5196 case clang::Type::InjectedClassName:
5197 case clang::Type::DependentName:
5198 case clang::Type::DependentTemplateSpecialization:
5199 case clang::Type::PackExpansion:
5200 case clang::Type::ObjCObject:
5201
5202 case clang::Type::TemplateSpecialization:
5203 case clang::Type::DeducedTemplateSpecialization:
5204 case clang::Type::Atomic:
5205 case clang::Type::Adjusted:
5206 case clang::Type::Pipe:
5207 break;
5208
5209 // pointer type decayed from an array or function type.
5210 case clang::Type::Decayed:
5211 break;
5212 case clang::Type::ObjCTypeParam:
5213 break;
5214
5215 case clang::Type::DependentAddressSpace:
5216 break;
5217 }
5218 count = 0;
5219 return lldb::eEncodingInvalid;
5220}
5221
5222lldb::Format ClangASTContext::GetFormat(lldb::opaque_compiler_type_t type) {
5223 if (!type)
5224 return lldb::eFormatDefault;
5225
5226 clang::QualType qual_type(GetCanonicalQualType(type));
5227
5228 switch (qual_type->getTypeClass()) {
5229 case clang::Type::UnaryTransform:
5230 break;
5231
5232 case clang::Type::FunctionNoProto:
5233 case clang::Type::FunctionProto:
5234 break;
5235
5236 case clang::Type::IncompleteArray:
5237 case clang::Type::VariableArray:
5238 break;
5239
5240 case clang::Type::ConstantArray:
5241 return lldb::eFormatVoid; // no value
5242
5243 case clang::Type::DependentVector:
5244 case clang::Type::ExtVector:
5245 case clang::Type::Vector:
5246 break;
5247
5248 case clang::Type::Builtin:
5249 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
5250 // default: assert(0 && "Unknown builtin type!");
5251 case clang::BuiltinType::UnknownAny:
5252 case clang::BuiltinType::Void:
5253 case clang::BuiltinType::BoundMember:
5254 break;
5255
5256 case clang::BuiltinType::Bool:
5257 return lldb::eFormatBoolean;
5258 case clang::BuiltinType::Char_S:
5259 case clang::BuiltinType::SChar:
5260 case clang::BuiltinType::WChar_S:
5261 case clang::BuiltinType::Char_U:
5262 case clang::BuiltinType::UChar:
5263 case clang::BuiltinType::WChar_U:
5264 return lldb::eFormatChar;
5265 case clang::BuiltinType::Char16:
5266 return lldb::eFormatUnicode16;
5267 case clang::BuiltinType::Char32:
5268 return lldb::eFormatUnicode32;
5269 case clang::BuiltinType::UShort:
5270 return lldb::eFormatUnsigned;
5271 case clang::BuiltinType::Short:
5272 return lldb::eFormatDecimal;
5273 case clang::BuiltinType::UInt:
5274 return lldb::eFormatUnsigned;
5275 case clang::BuiltinType::Int:
5276 return lldb::eFormatDecimal;
5277 case clang::BuiltinType::ULong:
5278 return lldb::eFormatUnsigned;
5279 case clang::BuiltinType::Long:
5280 return lldb::eFormatDecimal;
5281 case clang::BuiltinType::ULongLong:
5282 return lldb::eFormatUnsigned;
5283 case clang::BuiltinType::LongLong:
5284 return lldb::eFormatDecimal;
5285 case clang::BuiltinType::UInt128:
5286 return lldb::eFormatUnsigned;
5287 case clang::BuiltinType::Int128:
5288 return lldb::eFormatDecimal;
5289 case clang::BuiltinType::Half:
5290 case clang::BuiltinType::Float:
5291 case clang::BuiltinType::Double:
5292 case clang::BuiltinType::LongDouble:
5293 return lldb::eFormatFloat;
5294 default:
5295 return lldb::eFormatHex;
5296 }
5297 break;
5298 case clang::Type::ObjCObjectPointer:
5299 return lldb::eFormatHex;
5300 case clang::Type::BlockPointer:
5301 return lldb::eFormatHex;
5302 case clang::Type::Pointer:
5303 return lldb::eFormatHex;
5304 case clang::Type::LValueReference:
5305 case clang::Type::RValueReference:
5306 return lldb::eFormatHex;
5307 case clang::Type::MemberPointer:
5308 break;
5309 case clang::Type::Complex: {
5310 if (qual_type->isComplexType())
5311 return lldb::eFormatComplex;
5312 else
5313 return lldb::eFormatComplexInteger;
5314 }
5315 case clang::Type::ObjCInterface:
5316 break;
5317 case clang::Type::Record:
5318 break;
5319 case clang::Type::Enum:
5320 return lldb::eFormatEnum;
5321 case clang::Type::Typedef:
5322 return CompilerType(getASTContext(),
5323 llvm::cast<clang::TypedefType>(qual_type)
5324 ->getDecl()
5325 ->getUnderlyingType())
5326 .GetFormat();
5327 case clang::Type::Auto:
5328 return CompilerType(getASTContext(),
5329 llvm::cast<clang::AutoType>(qual_type)->desugar())
5330 .GetFormat();
5331 case clang::Type::Paren:
5332 return CompilerType(getASTContext(),
5333 llvm::cast<clang::ParenType>(qual_type)->desugar())
5334 .GetFormat();
5335 case clang::Type::Elaborated:
5336 return CompilerType(
5337 getASTContext(),
5338 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
5339 .GetFormat();
5340 case clang::Type::TypeOfExpr:
5341 return CompilerType(getASTContext(),
5342 llvm::cast<clang::TypeOfExprType>(qual_type)
5343 ->getUnderlyingExpr()
5344 ->getType())
5345 .GetFormat();
5346 case clang::Type::TypeOf:
5347 return CompilerType(
5348 getASTContext(),
5349 llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType())
5350 .GetFormat();
5351 case clang::Type::Decltype:
5352 return CompilerType(
5353 getASTContext(),
5354 llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType())
5355 .GetFormat();
5356 case clang::Type::DependentSizedArray:
5357 case clang::Type::DependentSizedExtVector:
5358 case clang::Type::UnresolvedUsing:
5359 case clang::Type::Attributed:
5360 case clang::Type::TemplateTypeParm:
5361 case clang::Type::SubstTemplateTypeParm:
5362 case clang::Type::SubstTemplateTypeParmPack:
5363 case clang::Type::InjectedClassName:
5364 case clang::Type::DependentName:
5365 case clang::Type::DependentTemplateSpecialization:
5366 case clang::Type::PackExpansion:
5367 case clang::Type::ObjCObject:
5368
5369 case clang::Type::TemplateSpecialization:
5370 case clang::Type::DeducedTemplateSpecialization:
5371 case clang::Type::Atomic:
5372 case clang::Type::Adjusted:
5373 case clang::Type::Pipe:
5374 break;
5375
5376 // pointer type decayed from an array or function type.
5377 case clang::Type::Decayed:
5378 break;
5379 case clang::Type::ObjCTypeParam:
5380 break;
5381
5382 case clang::Type::DependentAddressSpace:
5383 break;
5384 }
5385 // We don't know hot to display this type...
5386 return lldb::eFormatBytes;
5387}
5388
5389static bool ObjCDeclHasIVars(clang::ObjCInterfaceDecl *class_interface_decl,
5390 bool check_superclass) {
5391 while (class_interface_decl) {
5392 if (class_interface_decl->ivar_size() > 0)
5393 return true;
5394
5395 if (check_superclass)
5396 class_interface_decl = class_interface_decl->getSuperClass();
5397 else
5398 break;
5399 }
5400 return false;
5401}
5402
5403uint32_t ClangASTContext::GetNumChildren(lldb::opaque_compiler_type_t type,
5404 bool omit_empty_base_classes) {
5405 if (!type)
5406 return 0;
5407
5408 uint32_t num_children = 0;
5409 clang::QualType qual_type(GetQualType(type));
5410 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5411 switch (type_class) {
5412 case clang::Type::Builtin:
5413 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
5414 case clang::BuiltinType::ObjCId: // child is Class
5415 case clang::BuiltinType::ObjCClass: // child is Class
5416 num_children = 1;
5417 break;
5418
5419 default:
5420 break;
5421 }
5422 break;
5423
5424 case clang::Type::Complex:
5425 return 0;
5426
5427 case clang::Type::Record:
5428 if (GetCompleteQualType(getASTContext(), qual_type)) {
5429 const clang::RecordType *record_type =
5430 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
5431 const clang::RecordDecl *record_decl = record_type->getDecl();
5432 assert(record_decl)((record_decl) ? static_cast<void> (0) : __assert_fail (
"record_decl", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 5432, __PRETTY_FUNCTION__))
;
5433 const clang::CXXRecordDecl *cxx_record_decl =
5434 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
5435 if (cxx_record_decl) {
5436 if (omit_empty_base_classes) {
5437 // Check each base classes to see if it or any of its base classes
5438 // contain any fields. This can help limit the noise in variable
5439 // views by not having to show base classes that contain no members.
5440 clang::CXXRecordDecl::base_class_const_iterator base_class,
5441 base_class_end;
5442 for (base_class = cxx_record_decl->bases_begin(),
5443 base_class_end = cxx_record_decl->bases_end();
5444 base_class != base_class_end; ++base_class) {
5445 const clang::CXXRecordDecl *base_class_decl =
5446 llvm::cast<clang::CXXRecordDecl>(
5447 base_class->getType()
5448 ->getAs<clang::RecordType>()
5449 ->getDecl());
5450
5451 // Skip empty base classes
5452 if (ClangASTContext::RecordHasFields(base_class_decl) == false)
5453 continue;
5454
5455 num_children++;
5456 }
5457 } else {
5458 // Include all base classes
5459 num_children += cxx_record_decl->getNumBases();
5460 }
5461 }
5462 clang::RecordDecl::field_iterator field, field_end;
5463 for (field = record_decl->field_begin(),
5464 field_end = record_decl->field_end();
5465 field != field_end; ++field)
5466 ++num_children;
5467 }
5468 break;
5469
5470 case clang::Type::ObjCObject:
5471 case clang::Type::ObjCInterface:
5472 if (GetCompleteQualType(getASTContext(), qual_type)) {
5473 const clang::ObjCObjectType *objc_class_type =
5474 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
5475 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 5475, __PRETTY_FUNCTION__))
;
5476 if (objc_class_type) {
5477 clang::ObjCInterfaceDecl *class_interface_decl =
5478 objc_class_type->getInterface();
5479
5480 if (class_interface_decl) {
5481
5482 clang::ObjCInterfaceDecl *superclass_interface_decl =
5483 class_interface_decl->getSuperClass();
5484 if (superclass_interface_decl) {
5485 if (omit_empty_base_classes) {
5486 if (ObjCDeclHasIVars(superclass_interface_decl, true))
5487 ++num_children;
5488 } else
5489 ++num_children;
5490 }
5491
5492 num_children += class_interface_decl->ivar_size();
5493 }
5494 }
5495 }
5496 break;
5497
5498 case clang::Type::ObjCObjectPointer: {
5499 const clang::ObjCObjectPointerType *pointer_type =
5500 llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr());
5501 clang::QualType pointee_type = pointer_type->getPointeeType();
5502 uint32_t num_pointee_children =
5503 CompilerType(getASTContext(), pointee_type)
5504 .GetNumChildren(omit_empty_base_classes);
5505 // If this type points to a simple type, then it has 1 child
5506 if (num_pointee_children == 0)
5507 num_children = 1;
5508 else
5509 num_children = num_pointee_children;
5510 } break;
5511
5512 case clang::Type::Vector:
5513 case clang::Type::ExtVector:
5514 num_children =
5515 llvm::cast<clang::VectorType>(qual_type.getTypePtr())->getNumElements();
5516 break;
5517
5518 case clang::Type::ConstantArray:
5519 num_children = llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr())
5520 ->getSize()
5521 .getLimitedValue();
5522 break;
5523
5524 case clang::Type::Pointer: {
5525 const clang::PointerType *pointer_type =
5526 llvm::cast<clang::PointerType>(qual_type.getTypePtr());
5527 clang::QualType pointee_type(pointer_type->getPointeeType());
5528 uint32_t num_pointee_children =
5529 CompilerType(getASTContext(), pointee_type)
5530 .GetNumChildren(omit_empty_base_classes);
5531 if (num_pointee_children == 0) {
5532 // We have a pointer to a pointee type that claims it has no children. We
5533 // will want to look at
5534 num_children = GetNumPointeeChildren(pointee_type);
5535 } else
5536 num_children = num_pointee_children;
5537 } break;
5538
5539 case clang::Type::LValueReference:
5540 case clang::Type::RValueReference: {
5541 const clang::ReferenceType *reference_type =
5542 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
5543 clang::QualType pointee_type = reference_type->getPointeeType();
5544 uint32_t num_pointee_children =
5545 CompilerType(getASTContext(), pointee_type)
5546 .GetNumChildren(omit_empty_base_classes);
5547 // If this type points to a simple type, then it has 1 child
5548 if (num_pointee_children == 0)
5549 num_children = 1;
5550 else
5551 num_children = num_pointee_children;
5552 } break;
5553
5554 case clang::Type::Typedef:
5555 num_children =
5556 CompilerType(getASTContext(), llvm::cast<clang::TypedefType>(qual_type)
5557 ->getDecl()
5558 ->getUnderlyingType())
5559 .GetNumChildren(omit_empty_base_classes);
5560 break;
5561
5562 case clang::Type::Auto:
5563 num_children =
5564 CompilerType(getASTContext(),
5565 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
5566 .GetNumChildren(omit_empty_base_classes);
5567 break;
5568
5569 case clang::Type::Elaborated:
5570 num_children =
5571 CompilerType(
5572 getASTContext(),
5573 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
5574 .GetNumChildren(omit_empty_base_classes);
5575 break;
5576
5577 case clang::Type::Paren:
5578 num_children =
5579 CompilerType(getASTContext(),
5580 llvm::cast<clang::ParenType>(qual_type)->desugar())
5581 .GetNumChildren(omit_empty_base_classes);
5582 break;
5583 default:
5584 break;
5585 }
5586 return num_children;
5587}
5588
5589CompilerType ClangASTContext::GetBuiltinTypeByName(const ConstString &name) {
5590 return GetBasicType(GetBasicTypeEnumeration(name));
5591}
5592
5593lldb::BasicType
5594ClangASTContext::GetBasicTypeEnumeration(lldb::opaque_compiler_type_t type) {
5595 if (type) {
5596 clang::QualType qual_type(GetQualType(type));
5597 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5598 if (type_class == clang::Type::Builtin) {
5599 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
5600 case clang::BuiltinType::Void:
5601 return eBasicTypeVoid;
5602 case clang::BuiltinType::Bool:
5603 return eBasicTypeBool;
5604 case clang::BuiltinType::Char_S:
5605 return eBasicTypeSignedChar;
5606 case clang::BuiltinType::Char_U:
5607 return eBasicTypeUnsignedChar;
5608 case clang::BuiltinType::Char16:
5609 return eBasicTypeChar16;
5610 case clang::BuiltinType::Char32:
5611 return eBasicTypeChar32;
5612 case clang::BuiltinType::UChar:
5613 return eBasicTypeUnsignedChar;
5614 case clang::BuiltinType::SChar:
5615 return eBasicTypeSignedChar;
5616 case clang::BuiltinType::WChar_S:
5617 return eBasicTypeSignedWChar;
5618 case clang::BuiltinType::WChar_U:
5619 return eBasicTypeUnsignedWChar;
5620 case clang::BuiltinType::Short:
5621 return eBasicTypeShort;
5622 case clang::BuiltinType::UShort:
5623 return eBasicTypeUnsignedShort;
5624 case clang::BuiltinType::Int:
5625 return eBasicTypeInt;
5626 case clang::BuiltinType::UInt:
5627 return eBasicTypeUnsignedInt;
5628 case clang::BuiltinType::Long:
5629 return eBasicTypeLong;
5630 case clang::BuiltinType::ULong:
5631 return eBasicTypeUnsignedLong;
5632 case clang::BuiltinType::LongLong:
5633 return eBasicTypeLongLong;
5634 case clang::BuiltinType::ULongLong:
5635 return eBasicTypeUnsignedLongLong;
5636 case clang::BuiltinType::Int128:
5637 return eBasicTypeInt128;
5638 case clang::BuiltinType::UInt128:
5639 return eBasicTypeUnsignedInt128;
5640
5641 case clang::BuiltinType::Half:
5642 return eBasicTypeHalf;
5643 case clang::BuiltinType::Float:
5644 return eBasicTypeFloat;
5645 case clang::BuiltinType::Double:
5646 return eBasicTypeDouble;
5647 case clang::BuiltinType::LongDouble:
5648 return eBasicTypeLongDouble;
5649
5650 case clang::BuiltinType::NullPtr:
5651 return eBasicTypeNullPtr;
5652 case clang::BuiltinType::ObjCId:
5653 return eBasicTypeObjCID;
5654 case clang::BuiltinType::ObjCClass:
5655 return eBasicTypeObjCClass;
5656 case clang::BuiltinType::ObjCSel:
5657 return eBasicTypeObjCSel;
5658 default:
5659 return eBasicTypeOther;
5660 }
5661 }
5662 }
5663 return eBasicTypeInvalid;
5664}
5665
5666void ClangASTContext::ForEachEnumerator(
5667 lldb::opaque_compiler_type_t type,
5668 std::function<bool(const CompilerType &integer_type,
5669 const ConstString &name,
5670 const llvm::APSInt &value)> const &callback) {
5671 const clang::EnumType *enum_type =
5672 llvm::dyn_cast<clang::EnumType>(GetCanonicalQualType(type));
5673 if (enum_type) {
5674 const clang::EnumDecl *enum_decl = enum_type->getDecl();
5675 if (enum_decl) {
5676 CompilerType integer_type(this,
5677 enum_decl->getIntegerType().getAsOpaquePtr());
5678
5679 clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos;
5680 for (enum_pos = enum_decl->enumerator_begin(),
5681 enum_end_pos = enum_decl->enumerator_end();
5682 enum_pos != enum_end_pos; ++enum_pos) {
5683 ConstString name(enum_pos->getNameAsString().c_str());
5684 if (!callback(integer_type, name, enum_pos->getInitVal()))
5685 break;
5686 }
5687 }
5688 }
5689}
5690
5691#pragma mark Aggregate Types
5692
5693uint32_t ClangASTContext::GetNumFields(lldb::opaque_compiler_type_t type) {
5694 if (!type)
5695 return 0;
5696
5697 uint32_t count = 0;
5698 clang::QualType qual_type(GetCanonicalQualType(type));
5699 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5700 switch (type_class) {
5701 case clang::Type::Record:
5702 if (GetCompleteType(type)) {
5703 const clang::RecordType *record_type =
5704 llvm::dyn_cast<clang::RecordType>(qual_type.getTypePtr());
5705 if (record_type) {
5706 clang::RecordDecl *record_decl = record_type->getDecl();
5707 if (record_decl) {
5708 uint32_t field_idx = 0;
5709 clang::RecordDecl::field_iterator field, field_end;
5710 for (field = record_decl->field_begin(),
5711 field_end = record_decl->field_end();
5712 field != field_end; ++field)
5713 ++field_idx;
5714 count = field_idx;
5715 }
5716 }
5717 }
5718 break;
5719
5720 case clang::Type::Typedef:
5721 count =
5722 CompilerType(getASTContext(), llvm::cast<clang::TypedefType>(qual_type)
5723 ->getDecl()
5724 ->getUnderlyingType())
5725 .GetNumFields();
5726 break;
5727
5728 case clang::Type::Auto:
5729 count =
5730 CompilerType(getASTContext(),
5731 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
5732 .GetNumFields();
5733 break;
5734
5735 case clang::Type::Elaborated:
5736 count = CompilerType(
5737 getASTContext(),
5738 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
5739 .GetNumFields();
5740 break;
5741
5742 case clang::Type::Paren:
5743 count = CompilerType(getASTContext(),
5744 llvm::cast<clang::ParenType>(qual_type)->desugar())
5745 .GetNumFields();
5746 break;
5747
5748 case clang::Type::ObjCObjectPointer: {
5749 const clang::ObjCObjectPointerType *objc_class_type =
5750 qual_type->getAs<clang::ObjCObjectPointerType>();
5751 const clang::ObjCInterfaceType *objc_interface_type =
5752 objc_class_type->getInterfaceType();
5753 if (objc_interface_type &&
5754 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
5755 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
5756 clang::ObjCInterfaceDecl *class_interface_decl =
5757 objc_interface_type->getDecl();
5758 if (class_interface_decl) {
5759 count = class_interface_decl->ivar_size();
5760 }
5761 }
5762 break;
5763 }
5764
5765 case clang::Type::ObjCObject:
5766 case clang::Type::ObjCInterface:
5767 if (GetCompleteType(type)) {
5768 const clang::ObjCObjectType *objc_class_type =
5769 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
5770 if (objc_class_type) {
5771 clang::ObjCInterfaceDecl *class_interface_decl =
5772 objc_class_type->getInterface();
5773
5774 if (class_interface_decl)
5775 count = class_interface_decl->ivar_size();
5776 }
5777 }
5778 break;
5779
5780 default:
5781 break;
5782 }
5783 return count;
5784}
5785
5786static lldb::opaque_compiler_type_t
5787GetObjCFieldAtIndex(clang::ASTContext *ast,
5788 clang::ObjCInterfaceDecl *class_interface_decl, size_t idx,
5789 std::string &name, uint64_t *bit_offset_ptr,
5790 uint32_t *bitfield_bit_size_ptr, bool *is_bitfield_ptr) {
5791 if (class_interface_decl) {
5792 if (idx < (class_interface_decl->ivar_size())) {
5793 clang::ObjCInterfaceDecl::ivar_iterator ivar_pos,
5794 ivar_end = class_interface_decl->ivar_end();
5795 uint32_t ivar_idx = 0;
5796
5797 for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end;
5798 ++ivar_pos, ++ivar_idx) {
5799 if (ivar_idx == idx) {
5800 const clang::ObjCIvarDecl *ivar_decl = *ivar_pos;
5801
5802 clang::QualType ivar_qual_type(ivar_decl->getType());
5803
5804 name.assign(ivar_decl->getNameAsString());
5805
5806 if (bit_offset_ptr) {
5807 const clang::ASTRecordLayout &interface_layout =
5808 ast->getASTObjCInterfaceLayout(class_interface_decl);
5809 *bit_offset_ptr = interface_layout.getFieldOffset(ivar_idx);
5810 }
5811
5812 const bool is_bitfield = ivar_pos->isBitField();
5813
5814 if (bitfield_bit_size_ptr) {
5815 *bitfield_bit_size_ptr = 0;
5816
5817 if (is_bitfield && ast) {
5818 clang::Expr *bitfield_bit_size_expr = ivar_pos->getBitWidth();
5819 llvm::APSInt bitfield_apsint;
5820 if (bitfield_bit_size_expr &&
5821 bitfield_bit_size_expr->EvaluateAsInt(bitfield_apsint,
5822 *ast)) {
5823 *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue();
5824 }
5825 }
5826 }
5827 if (is_bitfield_ptr)
5828 *is_bitfield_ptr = is_bitfield;
5829
5830 return ivar_qual_type.getAsOpaquePtr();
5831 }
5832 }
5833 }
5834 }
5835 return nullptr;
5836}
5837
5838CompilerType ClangASTContext::GetFieldAtIndex(lldb::opaque_compiler_type_t type,
5839 size_t idx, std::string &name,
5840 uint64_t *bit_offset_ptr,
5841 uint32_t *bitfield_bit_size_ptr,
5842 bool *is_bitfield_ptr) {
5843 if (!type)
5844 return CompilerType();
5845
5846 clang::QualType qual_type(GetCanonicalQualType(type));
5847 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5848 switch (type_class) {
5849 case clang::Type::Record:
5850 if (GetCompleteType(type)) {
5851 const clang::RecordType *record_type =
5852 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
5853 const clang::RecordDecl *record_decl = record_type->getDecl();
5854 uint32_t field_idx = 0;
5855 clang::RecordDecl::field_iterator field, field_end;
5856 for (field = record_decl->field_begin(),
5857 field_end = record_decl->field_end();
5858 field != field_end; ++field, ++field_idx) {
5859 if (idx == field_idx) {
5860 // Print the member type if requested
5861 // Print the member name and equal sign
5862 name.assign(field->getNameAsString());
5863
5864 // Figure out the type byte size (field_type_info.first) and
5865 // alignment (field_type_info.second) from the AST context.
5866 if (bit_offset_ptr) {
5867 const clang::ASTRecordLayout &record_layout =
5868 getASTContext()->getASTRecordLayout(record_decl);
5869 *bit_offset_ptr = record_layout.getFieldOffset(field_idx);
5870 }
5871
5872 const bool is_bitfield = field->isBitField();
5873
5874 if (bitfield_bit_size_ptr) {
5875 *bitfield_bit_size_ptr = 0;
5876
5877 if (is_bitfield) {
5878 clang::Expr *bitfield_bit_size_expr = field->getBitWidth();
5879 llvm::APSInt bitfield_apsint;
5880 if (bitfield_bit_size_expr &&
5881 bitfield_bit_size_expr->EvaluateAsInt(bitfield_apsint,
5882 *getASTContext())) {
5883 *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue();
5884 }
5885 }
5886 }
5887 if (is_bitfield_ptr)
5888 *is_bitfield_ptr = is_bitfield;
5889
5890 return CompilerType(getASTContext(), field->getType());
5891 }
5892 }
5893 }
5894 break;
5895
5896 case clang::Type::ObjCObjectPointer: {
5897 const clang::ObjCObjectPointerType *objc_class_type =
5898 qual_type->getAs<clang::ObjCObjectPointerType>();
5899 const clang::ObjCInterfaceType *objc_interface_type =
5900 objc_class_type->getInterfaceType();
5901 if (objc_interface_type &&
5902 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
5903 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
5904 clang::ObjCInterfaceDecl *class_interface_decl =
5905 objc_interface_type->getDecl();
5906 if (class_interface_decl) {
5907 return CompilerType(
5908 this, GetObjCFieldAtIndex(getASTContext(), class_interface_decl,
5909 idx, name, bit_offset_ptr,
5910 bitfield_bit_size_ptr, is_bitfield_ptr));
5911 }
5912 }
5913 break;
5914 }
5915
5916 case clang::Type::ObjCObject:
5917 case clang::Type::ObjCInterface:
5918 if (GetCompleteType(type)) {
5919 const clang::ObjCObjectType *objc_class_type =
5920 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
5921 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 5921, __PRETTY_FUNCTION__))
;
5922 if (objc_class_type) {
5923 clang::ObjCInterfaceDecl *class_interface_decl =
5924 objc_class_type->getInterface();
5925 return CompilerType(
5926 this, GetObjCFieldAtIndex(getASTContext(), class_interface_decl,
5927 idx, name, bit_offset_ptr,
5928 bitfield_bit_size_ptr, is_bitfield_ptr));
5929 }
5930 }
5931 break;
5932
5933 case clang::Type::Typedef:
5934 return CompilerType(getASTContext(),
5935 llvm::cast<clang::TypedefType>(qual_type)
5936 ->getDecl()
5937 ->getUnderlyingType())
5938 .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
5939 is_bitfield_ptr);
5940
5941 case clang::Type::Auto:
5942 return CompilerType(
5943 getASTContext(),
5944 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
5945 .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
5946 is_bitfield_ptr);
5947
5948 case clang::Type::Elaborated:
5949 return CompilerType(
5950 getASTContext(),
5951 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
5952 .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
5953 is_bitfield_ptr);
5954
5955 case clang::Type::Paren:
5956 return CompilerType(getASTContext(),
5957 llvm::cast<clang::ParenType>(qual_type)->desugar())
5958 .GetFieldAtIndex(idx, name, bit_offset_ptr, bitfield_bit_size_ptr,
5959 is_bitfield_ptr);
5960
5961 default:
5962 break;
5963 }
5964 return CompilerType();
5965}
5966
5967uint32_t
5968ClangASTContext::GetNumDirectBaseClasses(lldb::opaque_compiler_type_t type) {
5969 uint32_t count = 0;
5970 clang::QualType qual_type(GetCanonicalQualType(type));
5971 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5972 switch (type_class) {
5973 case clang::Type::Record:
5974 if (GetCompleteType(type)) {
5975 const clang::CXXRecordDecl *cxx_record_decl =
5976 qual_type->getAsCXXRecordDecl();
5977 if (cxx_record_decl)
5978 count = cxx_record_decl->getNumBases();
5979 }
5980 break;
5981
5982 case clang::Type::ObjCObjectPointer:
5983 count = GetPointeeType(type).GetNumDirectBaseClasses();
5984 break;
5985
5986 case clang::Type::ObjCObject:
5987 if (GetCompleteType(type)) {
5988 const clang::ObjCObjectType *objc_class_type =
5989 qual_type->getAsObjCQualifiedInterfaceType();
5990 if (objc_class_type) {
5991 clang::ObjCInterfaceDecl *class_interface_decl =
5992 objc_class_type->getInterface();
5993
5994 if (class_interface_decl && class_interface_decl->getSuperClass())
5995 count = 1;
5996 }
5997 }
5998 break;
5999 case clang::Type::ObjCInterface:
6000 if (GetCompleteType(type)) {
6001 const clang::ObjCInterfaceType *objc_interface_type =
6002 qual_type->getAs<clang::ObjCInterfaceType>();
6003 if (objc_interface_type) {
6004 clang::ObjCInterfaceDecl *class_interface_decl =
6005 objc_interface_type->getInterface();
6006
6007 if (class_interface_decl && class_interface_decl->getSuperClass())
6008 count = 1;
6009 }
6010 }
6011 break;
6012
6013 case clang::Type::Typedef:
6014 count = GetNumDirectBaseClasses(llvm::cast<clang::TypedefType>(qual_type)
6015 ->getDecl()
6016 ->getUnderlyingType()
6017 .getAsOpaquePtr());
6018 break;
6019
6020 case clang::Type::Auto:
6021 count = GetNumDirectBaseClasses(llvm::cast<clang::AutoType>(qual_type)
6022 ->getDeducedType()
6023 .getAsOpaquePtr());
6024 break;
6025
6026 case clang::Type::Elaborated:
6027 count = GetNumDirectBaseClasses(llvm::cast<clang::ElaboratedType>(qual_type)
6028 ->getNamedType()
6029 .getAsOpaquePtr());
6030 break;
6031
6032 case clang::Type::Paren:
6033 return GetNumDirectBaseClasses(
6034 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr());
6035
6036 default:
6037 break;
6038 }
6039 return count;
6040}
6041
6042uint32_t
6043ClangASTContext::GetNumVirtualBaseClasses(lldb::opaque_compiler_type_t type) {
6044 uint32_t count = 0;
6045 clang::QualType qual_type(GetCanonicalQualType(type));
6046 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
6047 switch (type_class) {
6048 case clang::Type::Record:
6049 if (GetCompleteType(type)) {
6050 const clang::CXXRecordDecl *cxx_record_decl =
6051 qual_type->getAsCXXRecordDecl();
6052 if (cxx_record_decl)
6053 count = cxx_record_decl->getNumVBases();
6054 }
6055 break;
6056
6057 case clang::Type::Typedef:
6058 count = GetNumVirtualBaseClasses(llvm::cast<clang::TypedefType>(qual_type)
6059 ->getDecl()
6060 ->getUnderlyingType()
6061 .getAsOpaquePtr());
6062 break;
6063
6064 case clang::Type::Auto:
6065 count = GetNumVirtualBaseClasses(llvm::cast<clang::AutoType>(qual_type)
6066 ->getDeducedType()
6067 .getAsOpaquePtr());
6068 break;
6069
6070 case clang::Type::Elaborated:
6071 count =
6072 GetNumVirtualBaseClasses(llvm::cast<clang::ElaboratedType>(qual_type)
6073 ->getNamedType()
6074 .getAsOpaquePtr());
6075 break;
6076
6077 case clang::Type::Paren:
6078 count = GetNumVirtualBaseClasses(
6079 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr());
6080 break;
6081
6082 default:
6083 break;
6084 }
6085 return count;
6086}
6087
6088CompilerType ClangASTContext::GetDirectBaseClassAtIndex(
6089 lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) {
6090 clang::QualType qual_type(GetCanonicalQualType(type));
6091 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
6092 switch (type_class) {
6093 case clang::Type::Record:
6094 if (GetCompleteType(type)) {
6095 const clang::CXXRecordDecl *cxx_record_decl =
6096 qual_type->getAsCXXRecordDecl();
6097 if (cxx_record_decl) {
6098 uint32_t curr_idx = 0;
6099 clang::CXXRecordDecl::base_class_const_iterator base_class,
6100 base_class_end;
6101 for (base_class = cxx_record_decl->bases_begin(),
6102 base_class_end = cxx_record_decl->bases_end();
6103 base_class != base_class_end; ++base_class, ++curr_idx) {
6104 if (curr_idx == idx) {
6105 if (bit_offset_ptr) {
6106 const clang::ASTRecordLayout &record_layout =
6107 getASTContext()->getASTRecordLayout(cxx_record_decl);
6108 const clang::CXXRecordDecl *base_class_decl =
6109 llvm::cast<clang::CXXRecordDecl>(
6110 base_class->getType()
6111 ->getAs<clang::RecordType>()
6112 ->getDecl());
6113 if (base_class->isVirtual())
6114 *bit_offset_ptr =
6115 record_layout.getVBaseClassOffset(base_class_decl)
6116 .getQuantity() *
6117 8;
6118 else
6119 *bit_offset_ptr =
6120 record_layout.getBaseClassOffset(base_class_decl)
6121 .getQuantity() *
6122 8;
6123 }
6124 return CompilerType(this, base_class->getType().getAsOpaquePtr());
6125 }
6126 }
6127 }
6128 }
6129 break;
6130
6131 case clang::Type::ObjCObjectPointer:
6132 return GetPointeeType(type).GetDirectBaseClassAtIndex(idx, bit_offset_ptr);
6133
6134 case clang::Type::ObjCObject:
6135 if (idx == 0 && GetCompleteType(type)) {
6136 const clang::ObjCObjectType *objc_class_type =
6137 qual_type->getAsObjCQualifiedInterfaceType();
6138 if (objc_class_type) {
6139 clang::ObjCInterfaceDecl *class_interface_decl =
6140 objc_class_type->getInterface();
6141
6142 if (class_interface_decl) {
6143 clang::ObjCInterfaceDecl *superclass_interface_decl =
6144 class_interface_decl->getSuperClass();
6145 if (superclass_interface_decl) {
6146 if (bit_offset_ptr)
6147 *bit_offset_ptr = 0;
6148 return CompilerType(getASTContext(),
6149 getASTContext()->getObjCInterfaceType(
6150 superclass_interface_decl));
6151 }
6152 }
6153 }
6154 }
6155 break;
6156 case clang::Type::ObjCInterface:
6157 if (idx == 0 && GetCompleteType(type)) {
6158 const clang::ObjCObjectType *objc_interface_type =
6159 qual_type->getAs<clang::ObjCInterfaceType>();
6160 if (objc_interface_type) {
6161 clang::ObjCInterfaceDecl *class_interface_decl =
6162 objc_interface_type->getInterface();
6163
6164 if (class_interface_decl) {
6165 clang::ObjCInterfaceDecl *superclass_interface_decl =
6166 class_interface_decl->getSuperClass();
6167 if (superclass_interface_decl) {
6168 if (bit_offset_ptr)
6169 *bit_offset_ptr = 0;
6170 return CompilerType(getASTContext(),
6171 getASTContext()->getObjCInterfaceType(
6172 superclass_interface_decl));
6173 }
6174 }
6175 }
6176 }
6177 break;
6178
6179 case clang::Type::Typedef:
6180 return GetDirectBaseClassAtIndex(llvm::cast<clang::TypedefType>(qual_type)
6181 ->getDecl()
6182 ->getUnderlyingType()
6183 .getAsOpaquePtr(),
6184 idx, bit_offset_ptr);
6185
6186 case clang::Type::Auto:
6187 return GetDirectBaseClassAtIndex(llvm::cast<clang::AutoType>(qual_type)
6188 ->getDeducedType()
6189 .getAsOpaquePtr(),
6190 idx, bit_offset_ptr);
6191
6192 case clang::Type::Elaborated:
6193 return GetDirectBaseClassAtIndex(
6194 llvm::cast<clang::ElaboratedType>(qual_type)
6195 ->getNamedType()
6196 .getAsOpaquePtr(),
6197 idx, bit_offset_ptr);
6198
6199 case clang::Type::Paren:
6200 return GetDirectBaseClassAtIndex(
6201 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
6202 idx, bit_offset_ptr);
6203
6204 default:
6205 break;
6206 }
6207 return CompilerType();
6208}
6209
6210CompilerType ClangASTContext::GetVirtualBaseClassAtIndex(
6211 lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) {
6212 clang::QualType qual_type(GetCanonicalQualType(type));
6213 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
6214 switch (type_class) {
6215 case clang::Type::Record:
6216 if (GetCompleteType(type)) {
6217 const clang::CXXRecordDecl *cxx_record_decl =
6218 qual_type->getAsCXXRecordDecl();
6219 if (cxx_record_decl) {
6220 uint32_t curr_idx = 0;
6221 clang::CXXRecordDecl::base_class_const_iterator base_class,
6222 base_class_end;
6223 for (base_class = cxx_record_decl->vbases_begin(),
6224 base_class_end = cxx_record_decl->vbases_end();
6225 base_class != base_class_end; ++base_class, ++curr_idx) {
6226 if (curr_idx == idx) {
6227 if (bit_offset_ptr) {
6228 const clang::ASTRecordLayout &record_layout =
6229 getASTContext()->getASTRecordLayout(cxx_record_decl);
6230 const clang::CXXRecordDecl *base_class_decl =
6231 llvm::cast<clang::CXXRecordDecl>(
6232 base_class->getType()
6233 ->getAs<clang::RecordType>()
6234 ->getDecl());
6235 *bit_offset_ptr =
6236 record_layout.getVBaseClassOffset(base_class_decl)
6237 .getQuantity() *
6238 8;
6239 }
6240 return CompilerType(this, base_class->getType().getAsOpaquePtr());
6241 }
6242 }
6243 }
6244 }
6245 break;
6246
6247 case clang::Type::Typedef:
6248 return GetVirtualBaseClassAtIndex(llvm::cast<clang::TypedefType>(qual_type)
6249 ->getDecl()
6250 ->getUnderlyingType()
6251 .getAsOpaquePtr(),
6252 idx, bit_offset_ptr);
6253
6254 case clang::Type::Auto:
6255 return GetVirtualBaseClassAtIndex(llvm::cast<clang::AutoType>(qual_type)
6256 ->getDeducedType()
6257 .getAsOpaquePtr(),
6258 idx, bit_offset_ptr);
6259
6260 case clang::Type::Elaborated:
6261 return GetVirtualBaseClassAtIndex(
6262 llvm::cast<clang::ElaboratedType>(qual_type)
6263 ->getNamedType()
6264 .getAsOpaquePtr(),
6265 idx, bit_offset_ptr);
6266
6267 case clang::Type::Paren:
6268 return GetVirtualBaseClassAtIndex(
6269 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
6270 idx, bit_offset_ptr);
6271
6272 default:
6273 break;
6274 }
6275 return CompilerType();
6276}
6277
6278// If a pointer to a pointee type (the clang_type arg) says that it has no
6279// children, then we either need to trust it, or override it and return a
6280// different result. For example, an "int *" has one child that is an integer,
6281// but a function pointer doesn't have any children. Likewise if a Record type
6282// claims it has no children, then there really is nothing to show.
6283uint32_t ClangASTContext::GetNumPointeeChildren(clang::QualType type) {
6284 if (type.isNull())
6285 return 0;
6286
6287 clang::QualType qual_type(type.getCanonicalType());
6288 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
6289 switch (type_class) {
6290 case clang::Type::Builtin:
6291 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
6292 case clang::BuiltinType::UnknownAny:
6293 case clang::BuiltinType::Void:
6294 case clang::BuiltinType::NullPtr:
6295 case clang::BuiltinType::OCLEvent:
6296 case clang::BuiltinType::OCLImage1dRO:
6297 case clang::BuiltinType::OCLImage1dWO:
6298 case clang::BuiltinType::OCLImage1dRW:
6299 case clang::BuiltinType::OCLImage1dArrayRO:
6300 case clang::BuiltinType::OCLImage1dArrayWO:
6301 case clang::BuiltinType::OCLImage1dArrayRW:
6302 case clang::BuiltinType::OCLImage1dBufferRO:
6303 case clang::BuiltinType::OCLImage1dBufferWO:
6304 case clang::BuiltinType::OCLImage1dBufferRW:
6305 case clang::BuiltinType::OCLImage2dRO:
6306 case clang::BuiltinType::OCLImage2dWO:
6307 case clang::BuiltinType::OCLImage2dRW:
6308 case clang::BuiltinType::OCLImage2dArrayRO:
6309 case clang::BuiltinType::OCLImage2dArrayWO:
6310 case clang::BuiltinType::OCLImage2dArrayRW:
6311 case clang::BuiltinType::OCLImage3dRO:
6312 case clang::BuiltinType::OCLImage3dWO:
6313 case clang::BuiltinType::OCLImage3dRW:
6314 case clang::BuiltinType::OCLSampler:
6315 return 0;
6316 case clang::BuiltinType::Bool:
6317 case clang::BuiltinType::Char_U:
6318 case clang::BuiltinType::UChar:
6319 case clang::BuiltinType::WChar_U:
6320 case clang::BuiltinType::Char16:
6321 case clang::BuiltinType::Char32:
6322 case clang::BuiltinType::UShort:
6323 case clang::BuiltinType::UInt:
6324 case clang::BuiltinType::ULong:
6325 case clang::BuiltinType::ULongLong:
6326 case clang::BuiltinType::UInt128:
6327 case clang::BuiltinType::Char_S:
6328 case clang::BuiltinType::SChar:
6329 case clang::BuiltinType::WChar_S:
6330 case clang::BuiltinType::Short:
6331 case clang::BuiltinType::Int:
6332 case clang::BuiltinType::Long:
6333 case clang::BuiltinType::LongLong:
6334 case clang::BuiltinType::Int128:
6335 case clang::BuiltinType::Float:
6336 case clang::BuiltinType::Double:
6337 case clang::BuiltinType::LongDouble:
6338 case clang::BuiltinType::Dependent:
6339 case clang::BuiltinType::Overload:
6340 case clang::BuiltinType::ObjCId:
6341 case clang::BuiltinType::ObjCClass:
6342 case clang::BuiltinType::ObjCSel:
6343 case clang::BuiltinType::BoundMember:
6344 case clang::BuiltinType::Half:
6345 case clang::BuiltinType::ARCUnbridgedCast:
6346 case clang::BuiltinType::PseudoObject:
6347 case clang::BuiltinType::BuiltinFn:
6348 case clang::BuiltinType::OMPArraySection:
6349 return 1;
6350 default:
6351 return 0;
6352 }
6353 break;
6354
6355 case clang::Type::Complex:
6356 return 1;
6357 case clang::Type::Pointer:
6358 return 1;
6359 case clang::Type::BlockPointer:
6360 return 0; // If block pointers don't have debug info, then no children for
6361 // them
6362 case clang::Type::LValueReference:
6363 return 1;
6364 case clang::Type::RValueReference:
6365 return 1;
6366 case clang::Type::MemberPointer:
6367 return 0;
6368 case clang::Type::ConstantArray:
6369 return 0;
6370 case clang::Type::IncompleteArray:
6371 return 0;
6372 case clang::Type::VariableArray:
6373 return 0;
6374 case clang::Type::DependentSizedArray:
6375 return 0;
6376 case clang::Type::DependentSizedExtVector:
6377 return 0;
6378 case clang::Type::Vector:
6379 return 0;
6380 case clang::Type::ExtVector:
6381 return 0;
6382 case clang::Type::FunctionProto:
6383 return 0; // When we function pointers, they have no children...
6384 case clang::Type::FunctionNoProto:
6385 return 0; // When we function pointers, they have no children...
6386 case clang::Type::UnresolvedUsing:
6387 return 0;
6388 case clang::Type::Paren:
6389 return GetNumPointeeChildren(
6390 llvm::cast<clang::ParenType>(qual_type)->desugar());
6391 case clang::Type::Typedef:
6392 return GetNumPointeeChildren(llvm::cast<clang::TypedefType>(qual_type)
6393 ->getDecl()
6394 ->getUnderlyingType());
6395 case clang::Type::Auto:
6396 return GetNumPointeeChildren(
6397 llvm::cast<clang::AutoType>(qual_type)->getDeducedType());
6398 case clang::Type::Elaborated:
6399 return GetNumPointeeChildren(
6400 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType());
6401 case clang::Type::TypeOfExpr:
6402 return GetNumPointeeChildren(llvm::cast<clang::TypeOfExprType>(qual_type)
6403 ->getUnderlyingExpr()
6404 ->getType());
6405 case clang::Type::TypeOf:
6406 return GetNumPointeeChildren(
6407 llvm::cast<clang::TypeOfType>(qual_type)->getUnderlyingType());
6408 case clang::Type::Decltype:
6409 return GetNumPointeeChildren(
6410 llvm::cast<clang::DecltypeType>(qual_type)->getUnderlyingType());
6411 case clang::Type::Record:
6412 return 0;
6413 case clang::Type::Enum:
6414 return 1;
6415 case clang::Type::TemplateTypeParm:
6416 return 1;
6417 case clang::Type::SubstTemplateTypeParm:
6418 return 1;
6419 case clang::Type::TemplateSpecialization:
6420 return 1;
6421 case clang::Type::InjectedClassName:
6422 return 0;
6423 case clang::Type::DependentName:
6424 return 1;
6425 case clang::Type::DependentTemplateSpecialization:
6426 return 1;
6427 case clang::Type::ObjCObject:
6428 return 0;
6429 case clang::Type::ObjCInterface:
6430 return 0;
6431 case clang::Type::ObjCObjectPointer:
6432 return 1;
6433 default:
6434 break;
6435 }
6436 return 0;
6437}
6438
6439CompilerType ClangASTContext::GetChildCompilerTypeAtIndex(
6440 lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, size_t idx,
6441 bool transparent_pointers, bool omit_empty_base_classes,
6442 bool ignore_array_bounds, std::string &child_name,
6443 uint32_t &child_byte_size, int32_t &child_byte_offset,
6444 uint32_t &child_bitfield_bit_size, uint32_t &child_bitfield_bit_offset,
6445 bool &child_is_base_class, bool &child_is_deref_of_parent,
6446 ValueObject *valobj, uint64_t &language_flags) {
6447 if (!type)
6448 return CompilerType();
6449
6450 clang::QualType parent_qual_type(GetCanonicalQualType(type));
6451 const clang::Type::TypeClass parent_type_class =
6452 parent_qual_type->getTypeClass();
6453 child_bitfield_bit_size = 0;
6454 child_bitfield_bit_offset = 0;
6455 child_is_base_class = false;
6456 language_flags = 0;
6457
6458 const bool idx_is_valid = idx < GetNumChildren(type, omit_empty_base_classes);
6459 int32_t bit_offset;
6460 switch (parent_type_class) {
6461 case clang::Type::Builtin:
6462 if (idx_is_valid) {
6463 switch (llvm::cast<clang::BuiltinType>(parent_qual_type)->getKind()) {
6464 case clang::BuiltinType::ObjCId:
6465 case clang::BuiltinType::ObjCClass:
6466 child_name = "isa";
6467 child_byte_size =
6468 getASTContext()->getTypeSize(getASTContext()->ObjCBuiltinClassTy) /
6469 CHAR_BIT8;
6470 return CompilerType(getASTContext(),
6471 getASTContext()->ObjCBuiltinClassTy);
6472
6473 default:
6474 break;
6475 }
6476 }
6477 break;
6478
6479 case clang::Type::Record:
6480 if (idx_is_valid && GetCompleteType(type)) {
6481 const clang::RecordType *record_type =
6482 llvm::cast<clang::RecordType>(parent_qual_type.getTypePtr());
6483 const clang::RecordDecl *record_decl = record_type->getDecl();
6484 assert(record_decl)((record_decl) ? static_cast<void> (0) : __assert_fail (
"record_decl", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 6484, __PRETTY_FUNCTION__))
;
6485 const clang::ASTRecordLayout &record_layout =
6486 getASTContext()->getASTRecordLayout(record_decl);
6487 uint32_t child_idx = 0;
6488
6489 const clang::CXXRecordDecl *cxx_record_decl =
6490 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
6491 if (cxx_record_decl) {
6492 // We might have base classes to print out first
6493 clang::CXXRecordDecl::base_class_const_iterator base_class,
6494 base_class_end;
6495 for (base_class = cxx_record_decl->bases_begin(),
6496 base_class_end = cxx_record_decl->bases_end();
6497 base_class != base_class_end; ++base_class) {
6498 const clang::CXXRecordDecl *base_class_decl = nullptr;
6499
6500 // Skip empty base classes
6501 if (omit_empty_base_classes) {
6502 base_class_decl = llvm::cast<clang::CXXRecordDecl>(
6503 base_class->getType()->getAs<clang::RecordType>()->getDecl());
6504 if (ClangASTContext::RecordHasFields(base_class_decl) == false)
6505 continue;
6506 }
6507
6508 if (idx == child_idx) {
6509 if (base_class_decl == nullptr)
6510 base_class_decl = llvm::cast<clang::CXXRecordDecl>(
6511 base_class->getType()->getAs<clang::RecordType>()->getDecl());
6512
6513 if (base_class->isVirtual()) {
6514 bool handled = false;
6515 if (valobj) {
6516 Status err;
6517 AddressType addr_type = eAddressTypeInvalid;
6518 lldb::addr_t vtable_ptr_addr =
6519 valobj->GetCPPVTableAddress(addr_type);
6520
6521 if (vtable_ptr_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL) &&
6522 addr_type == eAddressTypeLoad) {
6523
6524 ExecutionContext exe_ctx(valobj->GetExecutionContextRef());
6525 Process *process = exe_ctx.GetProcessPtr();
6526 if (process) {
6527 clang::VTableContextBase *vtable_ctx =
6528 getASTContext()->getVTableContext();
6529 if (vtable_ctx) {
6530 if (vtable_ctx->isMicrosoft()) {
6531 clang::MicrosoftVTableContext *msoft_vtable_ctx =
6532 static_cast<clang::MicrosoftVTableContext *>(
6533 vtable_ctx);
6534
6535 if (vtable_ptr_addr) {
6536 const lldb::addr_t vbtable_ptr_addr =
6537 vtable_ptr_addr +
6538 record_layout.getVBPtrOffset().getQuantity();
6539
6540 const lldb::addr_t vbtable_ptr =
6541 process->ReadPointerFromMemory(vbtable_ptr_addr,
6542 err);
6543 if (vbtable_ptr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) {
6544 // Get the index into the virtual base table. The
6545 // index is the index in uint32_t from vbtable_ptr
6546 const unsigned vbtable_index =
6547 msoft_vtable_ctx->getVBTableIndex(
6548 cxx_record_decl, base_class_decl);
6549 const lldb::addr_t base_offset_addr =
6550 vbtable_ptr + vbtable_index * 4;
6551 const int32_t base_offset =
6552 process->ReadSignedIntegerFromMemory(
6553 base_offset_addr, 4, INT32_MAX(2147483647), err);
6554 if (base_offset != INT32_MAX(2147483647)) {
6555 handled = true;
6556 bit_offset = base_offset * 8;
6557 }
6558 }
6559 }
6560 } else {
6561 clang::ItaniumVTableContext *itanium_vtable_ctx =
6562 static_cast<clang::ItaniumVTableContext *>(
6563 vtable_ctx);
6564 if (vtable_ptr_addr) {
6565 const lldb::addr_t vtable_ptr =
6566 process->ReadPointerFromMemory(vtable_ptr_addr,
6567 err);
6568 if (vtable_ptr != LLDB_INVALID_ADDRESS(18446744073709551615UL)) {
6569 clang::CharUnits base_offset_offset =
6570 itanium_vtable_ctx->getVirtualBaseOffsetOffset(
6571 cxx_record_decl, base_class_decl);
6572 const lldb::addr_t base_offset_addr =
6573 vtable_ptr + base_offset_offset.getQuantity();
6574 const uint32_t base_offset_size =
6575 process->GetAddressByteSize();
6576 const int64_t base_offset =
6577 process->ReadSignedIntegerFromMemory(
6578 base_offset_addr, base_offset_size,
6579 UINT32_MAX(4294967295U), err);
6580 if (base_offset < UINT32_MAX(4294967295U)) {
6581 handled = true;
6582 bit_offset = base_offset * 8;
6583 }
6584 }
6585 }
6586 }
6587 }
6588 }
6589 }
6590 }
6591 if (!handled)
6592 bit_offset = record_layout.getVBaseClassOffset(base_class_decl)
6593 .getQuantity() *
6594 8;
6595 } else
6596 bit_offset = record_layout.getBaseClassOffset(base_class_decl)
6597 .getQuantity() *
6598 8;
6599
6600 // Base classes should be a multiple of 8 bits in size
6601 child_byte_offset = bit_offset / 8;
6602 CompilerType base_class_clang_type(getASTContext(),
6603 base_class->getType());
6604 child_name = base_class_clang_type.GetTypeName().AsCString("");
6605 uint64_t base_class_clang_type_bit_size =
6606 base_class_clang_type.GetBitSize(
6607 exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL__null);
6608
6609 // Base classes bit sizes should be a multiple of 8 bits in size
6610 assert(base_class_clang_type_bit_size % 8 == 0)((base_class_clang_type_bit_size % 8 == 0) ? static_cast<void
> (0) : __assert_fail ("base_class_clang_type_bit_size % 8 == 0"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 6610, __PRETTY_FUNCTION__))
;
6611 child_byte_size = base_class_clang_type_bit_size / 8;
6612 child_is_base_class = true;
6613 return base_class_clang_type;
6614 }
6615 // We don't increment the child index in the for loop since we might
6616 // be skipping empty base classes
6617 ++child_idx;
6618 }
6619 }
6620 // Make sure index is in range...
6621 uint32_t field_idx = 0;
6622 clang::RecordDecl::field_iterator field, field_end;
6623 for (field = record_decl->field_begin(),
6624 field_end = record_decl->field_end();
6625 field != field_end; ++field, ++field_idx, ++child_idx) {
6626 if (idx == child_idx) {
6627 // Print the member type if requested
6628 // Print the member name and equal sign
6629 child_name.assign(field->getNameAsString());
6630
6631 // Figure out the type byte size (field_type_info.first) and
6632 // alignment (field_type_info.second) from the AST context.
6633 CompilerType field_clang_type(getASTContext(), field->getType());
6634 assert(field_idx < record_layout.getFieldCount())((field_idx < record_layout.getFieldCount()) ? static_cast
<void> (0) : __assert_fail ("field_idx < record_layout.getFieldCount()"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 6634, __PRETTY_FUNCTION__))
;
6635 child_byte_size = field_clang_type.GetByteSize(
6636 exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL__null);
6637 const uint32_t child_bit_size = child_byte_size * 8;
6638
6639 // Figure out the field offset within the current struct/union/class
6640 // type
6641 bit_offset = record_layout.getFieldOffset(field_idx);
6642 if (ClangASTContext::FieldIsBitfield(getASTContext(), *field,
6643 child_bitfield_bit_size)) {
6644 child_bitfield_bit_offset = bit_offset % child_bit_size;
6645 const uint32_t child_bit_offset =
6646 bit_offset - child_bitfield_bit_offset;
6647 child_byte_offset = child_bit_offset / 8;
6648 } else {
6649 child_byte_offset = bit_offset / 8;
6650 }
6651
6652 return field_clang_type;
6653 }
6654 }
6655 }
6656 break;
6657
6658 case clang::Type::ObjCObject:
6659 case clang::Type::ObjCInterface:
6660 if (idx_is_valid && GetCompleteType(type)) {
6661 const clang::ObjCObjectType *objc_class_type =
6662 llvm::dyn_cast<clang::ObjCObjectType>(parent_qual_type.getTypePtr());
6663 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 6663, __PRETTY_FUNCTION__))
;
6664 if (objc_class_type) {
6665 uint32_t child_idx = 0;
6666 clang::ObjCInterfaceDecl *class_interface_decl =
6667 objc_class_type->getInterface();
6668
6669 if (class_interface_decl) {
6670
6671 const clang::ASTRecordLayout &interface_layout =
6672 getASTContext()->getASTObjCInterfaceLayout(class_interface_decl);
6673 clang::ObjCInterfaceDecl *superclass_interface_decl =
6674 class_interface_decl->getSuperClass();
6675 if (superclass_interface_decl) {
6676 if (omit_empty_base_classes) {
6677 CompilerType base_class_clang_type(
6678 getASTContext(), getASTContext()->getObjCInterfaceType(
6679 superclass_interface_decl));
6680 if (base_class_clang_type.GetNumChildren(
6681 omit_empty_base_classes) > 0) {
6682 if (idx == 0) {
6683 clang::QualType ivar_qual_type(
6684 getASTContext()->getObjCInterfaceType(
6685 superclass_interface_decl));
6686
6687 child_name.assign(
6688 superclass_interface_decl->getNameAsString());
6689
6690 clang::TypeInfo ivar_type_info =
6691 getASTContext()->getTypeInfo(ivar_qual_type.getTypePtr());
6692
6693 child_byte_size = ivar_type_info.Width / 8;
6694 child_byte_offset = 0;
6695 child_is_base_class = true;
6696
6697 return CompilerType(getASTContext(), ivar_qual_type);
6698 }
6699
6700 ++child_idx;
6701 }
6702 } else
6703 ++child_idx;
6704 }
6705
6706 const uint32_t superclass_idx = child_idx;
6707
6708 if (idx < (child_idx + class_interface_decl->ivar_size())) {
6709 clang::ObjCInterfaceDecl::ivar_iterator ivar_pos,
6710 ivar_end = class_interface_decl->ivar_end();
6711
6712 for (ivar_pos = class_interface_decl->ivar_begin();
6713 ivar_pos != ivar_end; ++ivar_pos) {
6714 if (child_idx == idx) {
6715 clang::ObjCIvarDecl *ivar_decl = *ivar_pos;
6716
6717 clang::QualType ivar_qual_type(ivar_decl->getType());
6718
6719 child_name.assign(ivar_decl->getNameAsString());
6720
6721 clang::TypeInfo ivar_type_info =
6722 getASTContext()->getTypeInfo(ivar_qual_type.getTypePtr());
6723
6724 child_byte_size = ivar_type_info.Width / 8;
6725
6726 // Figure out the field offset within the current
6727 // struct/union/class type For ObjC objects, we can't trust the
6728 // bit offset we get from the Clang AST, since that doesn't
6729 // account for the space taken up by unbacked properties, or
6730 // from the changing size of base classes that are newer than
6731 // this class. So if we have a process around that we can ask
6732 // about this object, do so.
6733 child_byte_offset = LLDB_INVALID_IVAR_OFFSET(4294967295U);
6734 Process *process = nullptr;
6735 if (exe_ctx)
6736 process = exe_ctx->GetProcessPtr();
6737 if (process) {
6738 ObjCLanguageRuntime *objc_runtime =
6739 process->GetObjCLanguageRuntime();
6740 if (objc_runtime != nullptr) {
6741 CompilerType parent_ast_type(getASTContext(),
6742 parent_qual_type);
6743 child_byte_offset = objc_runtime->GetByteOffsetForIvar(
6744 parent_ast_type, ivar_decl->getNameAsString().c_str());
6745 }
6746 }
6747
6748 // Setting this to INT32_MAX to make sure we don't compute it
6749 // twice...
6750 bit_offset = INT32_MAX(2147483647);
6751
6752 if (child_byte_offset ==
6753 static_cast<int32_t>(LLDB_INVALID_IVAR_OFFSET(4294967295U))) {
6754 bit_offset = interface_layout.getFieldOffset(child_idx -
6755 superclass_idx);
6756 child_byte_offset = bit_offset / 8;
6757 }
6758
6759 // Note, the ObjC Ivar Byte offset is just that, it doesn't
6760 // account for the bit offset of a bitfield within its
6761 // containing object. So regardless of where we get the byte
6762 // offset from, we still need to get the bit offset for
6763 // bitfields from the layout.
6764
6765 if (ClangASTContext::FieldIsBitfield(getASTContext(), ivar_decl,
6766 child_bitfield_bit_size)) {
6767 if (bit_offset == INT32_MAX(2147483647))
6768 bit_offset = interface_layout.getFieldOffset(
6769 child_idx - superclass_idx);
6770
6771 child_bitfield_bit_offset = bit_offset % 8;
6772 }
6773 return CompilerType(getASTContext(), ivar_qual_type);
6774 }
6775 ++child_idx;
6776 }
6777 }
6778 }
6779 }
6780 }
6781 break;
6782
6783 case clang::Type::ObjCObjectPointer:
6784 if (idx_is_valid) {
6785 CompilerType pointee_clang_type(GetPointeeType(type));
6786
6787 if (transparent_pointers && pointee_clang_type.IsAggregateType()) {
6788 child_is_deref_of_parent = false;
6789 bool tmp_child_is_deref_of_parent = false;
6790 return pointee_clang_type.GetChildCompilerTypeAtIndex(
6791 exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
6792 ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
6793 child_bitfield_bit_size, child_bitfield_bit_offset,
6794 child_is_base_class, tmp_child_is_deref_of_parent, valobj,
6795 language_flags);
6796 } else {
6797 child_is_deref_of_parent = true;
6798 const char *parent_name =
6799 valobj ? valobj->GetName().GetCString() : NULL__null;
6800 if (parent_name) {
6801 child_name.assign(1, '*');
6802 child_name += parent_name;
6803 }
6804
6805 // We have a pointer to an simple type
6806 if (idx == 0 && pointee_clang_type.GetCompleteType()) {
6807 child_byte_size = pointee_clang_type.GetByteSize(
6808 exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL__null);
6809 child_byte_offset = 0;
6810 return pointee_clang_type;
6811 }
6812 }
6813 }
6814 break;
6815
6816 case clang::Type::Vector:
6817 case clang::Type::ExtVector:
6818 if (idx_is_valid) {
6819 const clang::VectorType *array =
6820 llvm::cast<clang::VectorType>(parent_qual_type.getTypePtr());
6821 if (array) {
6822 CompilerType element_type(getASTContext(), array->getElementType());
6823 if (element_type.GetCompleteType()) {
6824 char element_name[64];
6825 ::snprintf(element_name, sizeof(element_name), "[%" PRIu64"l" "u" "]",
6826 static_cast<uint64_t>(idx));
6827 child_name.assign(element_name);
6828 child_byte_size = element_type.GetByteSize(
6829 exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL__null);
6830 child_byte_offset = (int32_t)idx * (int32_t)child_byte_size;
6831 return element_type;
6832 }
6833 }
6834 }
6835 break;
6836
6837 case clang::Type::ConstantArray:
6838 case clang::Type::IncompleteArray:
6839 if (ignore_array_bounds || idx_is_valid) {
6840 const clang::ArrayType *array = GetQualType(type)->getAsArrayTypeUnsafe();
6841 if (array) {
6842 CompilerType element_type(getASTContext(), array->getElementType());
6843 if (element_type.GetCompleteType()) {
6844 child_name = llvm::formatv("[{0}]", idx);
6845 child_byte_size = element_type.GetByteSize(
6846 exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL__null);
6847 child_byte_offset = (int32_t)idx * (int32_t)child_byte_size;
6848 return element_type;
6849 }
6850 }
6851 }
6852 break;
6853
6854 case clang::Type::Pointer: {
6855 CompilerType pointee_clang_type(GetPointeeType(type));
6856
6857 // Don't dereference "void *" pointers
6858 if (pointee_clang_type.IsVoidType())
6859 return CompilerType();
6860
6861 if (transparent_pointers && pointee_clang_type.IsAggregateType()) {
6862 child_is_deref_of_parent = false;
6863 bool tmp_child_is_deref_of_parent = false;
6864 return pointee_clang_type.GetChildCompilerTypeAtIndex(
6865 exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
6866 ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
6867 child_bitfield_bit_size, child_bitfield_bit_offset,
6868 child_is_base_class, tmp_child_is_deref_of_parent, valobj,
6869 language_flags);
6870 } else {
6871 child_is_deref_of_parent = true;
6872
6873 const char *parent_name =
6874 valobj ? valobj->GetName().GetCString() : NULL__null;
6875 if (parent_name) {
6876 child_name.assign(1, '*');
6877 child_name += parent_name;
6878 }
6879
6880 // We have a pointer to an simple type
6881 if (idx == 0) {
6882 child_byte_size = pointee_clang_type.GetByteSize(
6883 exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL__null);
6884 child_byte_offset = 0;
6885 return pointee_clang_type;
6886 }
6887 }
6888 break;
6889 }
6890
6891 case clang::Type::LValueReference:
6892 case clang::Type::RValueReference:
6893 if (idx_is_valid) {
6894 const clang::ReferenceType *reference_type =
6895 llvm::cast<clang::ReferenceType>(parent_qual_type.getTypePtr());
6896 CompilerType pointee_clang_type(getASTContext(),
6897 reference_type->getPointeeType());
6898 if (transparent_pointers && pointee_clang_type.IsAggregateType()) {
6899 child_is_deref_of_parent = false;
6900 bool tmp_child_is_deref_of_parent = false;
6901 return pointee_clang_type.GetChildCompilerTypeAtIndex(
6902 exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
6903 ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
6904 child_bitfield_bit_size, child_bitfield_bit_offset,
6905 child_is_base_class, tmp_child_is_deref_of_parent, valobj,
6906 language_flags);
6907 } else {
6908 const char *parent_name =
6909 valobj ? valobj->GetName().GetCString() : NULL__null;
6910 if (parent_name) {
6911 child_name.assign(1, '&');
6912 child_name += parent_name;
6913 }
6914
6915 // We have a pointer to an simple type
6916 if (idx == 0) {
6917 child_byte_size = pointee_clang_type.GetByteSize(
6918 exe_ctx ? exe_ctx->GetBestExecutionContextScope() : NULL__null);
6919 child_byte_offset = 0;
6920 return pointee_clang_type;
6921 }
6922 }
6923 }
6924 break;
6925
6926 case clang::Type::Typedef: {
6927 CompilerType typedefed_clang_type(
6928 getASTContext(), llvm::cast<clang::TypedefType>(parent_qual_type)
6929 ->getDecl()
6930 ->getUnderlyingType());
6931 return typedefed_clang_type.GetChildCompilerTypeAtIndex(
6932 exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
6933 ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
6934 child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
6935 child_is_deref_of_parent, valobj, language_flags);
6936 } break;
6937
6938 case clang::Type::Auto: {
6939 CompilerType elaborated_clang_type(
6940 getASTContext(),
6941 llvm::cast<clang::AutoType>(parent_qual_type)->getDeducedType());
6942 return elaborated_clang_type.GetChildCompilerTypeAtIndex(
6943 exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
6944 ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
6945 child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
6946 child_is_deref_of_parent, valobj, language_flags);
6947 }
6948
6949 case clang::Type::Elaborated: {
6950 CompilerType elaborated_clang_type(
6951 getASTContext(),
6952 llvm::cast<clang::ElaboratedType>(parent_qual_type)->getNamedType());
6953 return elaborated_clang_type.GetChildCompilerTypeAtIndex(
6954 exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
6955 ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
6956 child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
6957 child_is_deref_of_parent, valobj, language_flags);
6958 }
6959
6960 case clang::Type::Paren: {
6961 CompilerType paren_clang_type(
6962 getASTContext(),
6963 llvm::cast<clang::ParenType>(parent_qual_type)->desugar());
6964 return paren_clang_type.GetChildCompilerTypeAtIndex(
6965 exe_ctx, idx, transparent_pointers, omit_empty_base_classes,
6966 ignore_array_bounds, child_name, child_byte_size, child_byte_offset,
6967 child_bitfield_bit_size, child_bitfield_bit_offset, child_is_base_class,
6968 child_is_deref_of_parent, valobj, language_flags);
6969 }
6970
6971 default:
6972 break;
6973 }
6974 return CompilerType();
6975}
6976
6977static uint32_t GetIndexForRecordBase(const clang::RecordDecl *record_decl,
6978 const clang::CXXBaseSpecifier *base_spec,
6979 bool omit_empty_base_classes) {
6980 uint32_t child_idx = 0;
6981
6982 const clang::CXXRecordDecl *cxx_record_decl =
6983 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
6984
6985 // const char *super_name = record_decl->getNameAsCString();
6986 // const char *base_name =
6987 // base_spec->getType()->getAs<clang::RecordType>()->getDecl()->getNameAsCString();
6988 // printf ("GetIndexForRecordChild (%s, %s)\n", super_name, base_name);
6989 //
6990 if (cxx_record_decl) {
6991 clang::CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
6992 for (base_class = cxx_record_decl->bases_begin(),
6993 base_class_end = cxx_record_decl->bases_end();
6994 base_class != base_class_end; ++base_class) {
6995 if (omit_empty_base_classes) {
6996 if (BaseSpecifierIsEmpty(base_class))
6997 continue;
6998 }
6999
7000 // printf ("GetIndexForRecordChild (%s, %s) base[%u] = %s\n",
7001 // super_name, base_name,
7002 // child_idx,
7003 // base_class->getType()->getAs<clang::RecordType>()->getDecl()->getNameAsCString());
7004 //
7005 //
7006 if (base_class == base_spec)
7007 return child_idx;
7008 ++child_idx;
7009 }
7010 }
7011
7012 return UINT32_MAX(4294967295U);
7013}
7014
7015static uint32_t GetIndexForRecordChild(const clang::RecordDecl *record_decl,
7016 clang::NamedDecl *canonical_decl,
7017 bool omit_empty_base_classes) {
7018 uint32_t child_idx = ClangASTContext::GetNumBaseClasses(
7019 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl),
7020 omit_empty_base_classes);
7021
7022 clang::RecordDecl::field_iterator field, field_end;
7023 for (field = record_decl->field_begin(), field_end = record_decl->field_end();
7024 field != field_end; ++field, ++child_idx) {
7025 if (field->getCanonicalDecl() == canonical_decl)
7026 return child_idx;
7027 }
7028
7029 return UINT32_MAX(4294967295U);
7030}
7031
7032// Look for a child member (doesn't include base classes, but it does include
7033// their members) in the type hierarchy. Returns an index path into
7034// "clang_type" on how to reach the appropriate member.
7035//
7036// class A
7037// {
7038// public:
7039// int m_a;
7040// int m_b;
7041// };
7042//
7043// class B
7044// {
7045// };
7046//
7047// class C :
7048// public B,
7049// public A
7050// {
7051// };
7052//
7053// If we have a clang type that describes "class C", and we wanted to looked
7054// "m_b" in it:
7055//
7056// With omit_empty_base_classes == false we would get an integer array back
7057// with: { 1, 1 } The first index 1 is the child index for "class A" within
7058// class C The second index 1 is the child index for "m_b" within class A
7059//
7060// With omit_empty_base_classes == true we would get an integer array back
7061// with: { 0, 1 } The first index 0 is the child index for "class A" within
7062// class C (since class B doesn't have any members it doesn't count) The second
7063// index 1 is the child index for "m_b" within class A
7064
7065size_t ClangASTContext::GetIndexOfChildMemberWithName(
7066 lldb::opaque_compiler_type_t type, const char *name,
7067 bool omit_empty_base_classes, std::vector<uint32_t> &child_indexes) {
7068 if (type && name && name[0]) {
7069 clang::QualType qual_type(GetCanonicalQualType(type));
7070 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
7071 switch (type_class) {
7072 case clang::Type::Record:
7073 if (GetCompleteType(type)) {
7074 const clang::RecordType *record_type =
7075 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
7076 const clang::RecordDecl *record_decl = record_type->getDecl();
7077
7078 assert(record_decl)((record_decl) ? static_cast<void> (0) : __assert_fail (
"record_decl", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 7078, __PRETTY_FUNCTION__))
;
7079 uint32_t child_idx = 0;
7080
7081 const clang::CXXRecordDecl *cxx_record_decl =
7082 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
7083
7084 // Try and find a field that matches NAME
7085 clang::RecordDecl::field_iterator field, field_end;
7086 llvm::StringRef name_sref(name);
7087 for (field = record_decl->field_begin(),
7088 field_end = record_decl->field_end();
7089 field != field_end; ++field, ++child_idx) {
7090 llvm::StringRef field_name = field->getName();
7091 if (field_name.empty()) {
7092 CompilerType field_type(getASTContext(), field->getType());
7093 child_indexes.push_back(child_idx);
7094 if (field_type.GetIndexOfChildMemberWithName(
7095 name, omit_empty_base_classes, child_indexes))
7096 return child_indexes.size();
7097 child_indexes.pop_back();
7098
7099 } else if (field_name.equals(name_sref)) {
7100 // We have to add on the number of base classes to this index!
7101 child_indexes.push_back(
7102 child_idx + ClangASTContext::GetNumBaseClasses(
7103 cxx_record_decl, omit_empty_base_classes));
7104 return child_indexes.size();
7105 }
7106 }
7107
7108 if (cxx_record_decl) {
7109 const clang::RecordDecl *parent_record_decl = cxx_record_decl;
7110
7111 // printf ("parent = %s\n", parent_record_decl->getNameAsCString());
7112
7113 // const Decl *root_cdecl = cxx_record_decl->getCanonicalDecl();
7114 // Didn't find things easily, lets let clang do its thang...
7115 clang::IdentifierInfo &ident_ref =
7116 getASTContext()->Idents.get(name_sref);
7117 clang::DeclarationName decl_name(&ident_ref);
7118
7119 clang::CXXBasePaths paths;
7120 if (cxx_record_decl->lookupInBases(
7121 [decl_name](const clang::CXXBaseSpecifier *specifier,
7122 clang::CXXBasePath &path) {
7123 return clang::CXXRecordDecl::FindOrdinaryMember(
7124 specifier, path, decl_name);
7125 },
7126 paths)) {
7127 clang::CXXBasePaths::const_paths_iterator path,
7128 path_end = paths.end();
7129 for (path = paths.begin(); path != path_end; ++path) {
7130 const size_t num_path_elements = path->size();
7131 for (size_t e = 0; e < num_path_elements; ++e) {
7132 clang::CXXBasePathElement elem = (*path)[e];
7133
7134 child_idx = GetIndexForRecordBase(parent_record_decl, elem.Base,
7135 omit_empty_base_classes);
7136 if (child_idx == UINT32_MAX(4294967295U)) {
7137 child_indexes.clear();
7138 return 0;
7139 } else {
7140 child_indexes.push_back(child_idx);
7141 parent_record_decl = llvm::cast<clang::RecordDecl>(
7142 elem.Base->getType()
7143 ->getAs<clang::RecordType>()
7144 ->getDecl());
7145 }
7146 }
7147 for (clang::NamedDecl *path_decl : path->Decls) {
7148 child_idx = GetIndexForRecordChild(
7149 parent_record_decl, path_decl, omit_empty_base_classes);
7150 if (child_idx == UINT32_MAX(4294967295U)) {
7151 child_indexes.clear();
7152 return 0;
7153 } else {
7154 child_indexes.push_back(child_idx);
7155 }
7156 }
7157 }
7158 return child_indexes.size();
7159 }
7160 }
7161 }
7162 break;
7163
7164 case clang::Type::ObjCObject:
7165 case clang::Type::ObjCInterface:
7166 if (GetCompleteType(type)) {
7167 llvm::StringRef name_sref(name);
7168 const clang::ObjCObjectType *objc_class_type =
7169 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
7170 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 7170, __PRETTY_FUNCTION__))
;
7171 if (objc_class_type) {
7172 uint32_t child_idx = 0;
7173 clang::ObjCInterfaceDecl *class_interface_decl =
7174 objc_class_type->getInterface();
7175
7176 if (class_interface_decl) {
7177 clang::ObjCInterfaceDecl::ivar_iterator ivar_pos,
7178 ivar_end = class_interface_decl->ivar_end();
7179 clang::ObjCInterfaceDecl *superclass_interface_decl =
7180 class_interface_decl->getSuperClass();
7181
7182 for (ivar_pos = class_interface_decl->ivar_begin();
7183 ivar_pos != ivar_end; ++ivar_pos, ++child_idx) {
7184 const clang::ObjCIvarDecl *ivar_decl = *ivar_pos;
7185
7186 if (ivar_decl->getName().equals(name_sref)) {
7187 if ((!omit_empty_base_classes && superclass_interface_decl) ||
7188 (omit_empty_base_classes &&
7189 ObjCDeclHasIVars(superclass_interface_decl, true)))
7190 ++child_idx;
7191
7192 child_indexes.push_back(child_idx);
7193 return child_indexes.size();
7194 }
7195 }
7196
7197 if (superclass_interface_decl) {
7198 // The super class index is always zero for ObjC classes, so we
7199 // push it onto the child indexes in case we find an ivar in our
7200 // superclass...
7201 child_indexes.push_back(0);
7202
7203 CompilerType superclass_clang_type(
7204 getASTContext(), getASTContext()->getObjCInterfaceType(
7205 superclass_interface_decl));
7206 if (superclass_clang_type.GetIndexOfChildMemberWithName(
7207 name, omit_empty_base_classes, child_indexes)) {
7208 // We did find an ivar in a superclass so just return the
7209 // results!
7210 return child_indexes.size();
7211 }
7212
7213 // We didn't find an ivar matching "name" in our superclass, pop
7214 // the superclass zero index that we pushed on above.
7215 child_indexes.pop_back();
7216 }
7217 }
7218 }
7219 }
7220 break;
7221
7222 case clang::Type::ObjCObjectPointer: {
7223 CompilerType objc_object_clang_type(
7224 getASTContext(),
7225 llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
7226 ->getPointeeType());
7227 return objc_object_clang_type.GetIndexOfChildMemberWithName(
7228 name, omit_empty_base_classes, child_indexes);
7229 } break;
7230
7231 case clang::Type::ConstantArray: {
7232 // const clang::ConstantArrayType *array =
7233 // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr());
7234 // const uint64_t element_count =
7235 // array->getSize().getLimitedValue();
7236 //
7237 // if (idx < element_count)
7238 // {
7239 // std::pair<uint64_t, unsigned> field_type_info =
7240 // ast->getTypeInfo(array->getElementType());
7241 //
7242 // char element_name[32];
7243 // ::snprintf (element_name, sizeof (element_name),
7244 // "%s[%u]", parent_name ? parent_name : "", idx);
7245 //
7246 // child_name.assign(element_name);
7247 // assert(field_type_info.first % 8 == 0);
7248 // child_byte_size = field_type_info.first / 8;
7249 // child_byte_offset = idx * child_byte_size;
7250 // return array->getElementType().getAsOpaquePtr();
7251 // }
7252 } break;
7253
7254 // case clang::Type::MemberPointerType:
7255 // {
7256 // MemberPointerType *mem_ptr_type =
7257 // llvm::cast<MemberPointerType>(qual_type.getTypePtr());
7258 // clang::QualType pointee_type =
7259 // mem_ptr_type->getPointeeType();
7260 //
7261 // if (ClangASTContext::IsAggregateType
7262 // (pointee_type.getAsOpaquePtr()))
7263 // {
7264 // return GetIndexOfChildWithName (ast,
7265 // mem_ptr_type->getPointeeType().getAsOpaquePtr(),
7266 // name);
7267 // }
7268 // }
7269 // break;
7270 //
7271 case clang::Type::LValueReference:
7272 case clang::Type::RValueReference: {
7273 const clang::ReferenceType *reference_type =
7274 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
7275 clang::QualType pointee_type(reference_type->getPointeeType());
7276 CompilerType pointee_clang_type(getASTContext(), pointee_type);
7277
7278 if (pointee_clang_type.IsAggregateType()) {
7279 return pointee_clang_type.GetIndexOfChildMemberWithName(
7280 name, omit_empty_base_classes, child_indexes);
7281 }
7282 } break;
7283
7284 case clang::Type::Pointer: {
7285 CompilerType pointee_clang_type(GetPointeeType(type));
7286
7287 if (pointee_clang_type.IsAggregateType()) {
7288 return pointee_clang_type.GetIndexOfChildMemberWithName(
7289 name, omit_empty_base_classes, child_indexes);
7290 }
7291 } break;
7292
7293 case clang::Type::Typedef:
7294 return CompilerType(getASTContext(),
7295 llvm::cast<clang::TypedefType>(qual_type)
7296 ->getDecl()
7297 ->getUnderlyingType())
7298 .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
7299 child_indexes);
7300
7301 case clang::Type::Auto:
7302 return CompilerType(
7303 getASTContext(),
7304 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
7305 .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
7306 child_indexes);
7307
7308 case clang::Type::Elaborated:
7309 return CompilerType(
7310 getASTContext(),
7311 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
7312 .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
7313 child_indexes);
7314
7315 case clang::Type::Paren:
7316 return CompilerType(getASTContext(),
7317 llvm::cast<clang::ParenType>(qual_type)->desugar())
7318 .GetIndexOfChildMemberWithName(name, omit_empty_base_classes,
7319 child_indexes);
7320
7321 default:
7322 break;
7323 }
7324 }
7325 return 0;
7326}
7327
7328// Get the index of the child of "clang_type" whose name matches. This function
7329// doesn't descend into the children, but only looks one level deep and name
7330// matches can include base class names.
7331
7332uint32_t
7333ClangASTContext::GetIndexOfChildWithName(lldb::opaque_compiler_type_t type,
7334 const char *name,
7335 bool omit_empty_base_classes) {
7336 if (type && name && name[0]) {
7337 clang::QualType qual_type(GetCanonicalQualType(type));
7338
7339 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
7340
7341 switch (type_class) {
7342 case clang::Type::Record:
7343 if (GetCompleteType(type)) {
7344 const clang::RecordType *record_type =
7345 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
7346 const clang::RecordDecl *record_decl = record_type->getDecl();
7347
7348 assert(record_decl)((record_decl) ? static_cast<void> (0) : __assert_fail (
"record_decl", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 7348, __PRETTY_FUNCTION__))
;
7349 uint32_t child_idx = 0;
7350
7351 const clang::CXXRecordDecl *cxx_record_decl =
7352 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
7353
7354 if (cxx_record_decl) {
7355 clang::CXXRecordDecl::base_class_const_iterator base_class,
7356 base_class_end;
7357 for (base_class = cxx_record_decl->bases_begin(),
7358 base_class_end = cxx_record_decl->bases_end();
7359 base_class != base_class_end; ++base_class) {
7360 // Skip empty base classes
7361 clang::CXXRecordDecl *base_class_decl =
7362 llvm::cast<clang::CXXRecordDecl>(
7363 base_class->getType()
7364 ->getAs<clang::RecordType>()
7365 ->getDecl());
7366 if (omit_empty_base_classes &&
7367 ClangASTContext::RecordHasFields(base_class_decl) == false)
7368 continue;
7369
7370 CompilerType base_class_clang_type(getASTContext(),
7371 base_class->getType());
7372 std::string base_class_type_name(
7373 base_class_clang_type.GetTypeName().AsCString(""));
7374 if (base_class_type_name.compare(name) == 0)
7375 return child_idx;
7376 ++child_idx;
7377 }
7378 }
7379
7380 // Try and find a field that matches NAME
7381 clang::RecordDecl::field_iterator field, field_end;
7382 llvm::StringRef name_sref(name);
7383 for (field = record_decl->field_begin(),
7384 field_end = record_decl->field_end();
7385 field != field_end; ++field, ++child_idx) {
7386 if (field->getName().equals(name_sref))
7387 return child_idx;
7388 }
7389 }
7390 break;
7391
7392 case clang::Type::ObjCObject:
7393 case clang::Type::ObjCInterface:
7394 if (GetCompleteType(type)) {
7395 llvm::StringRef name_sref(name);
7396 const clang::ObjCObjectType *objc_class_type =
7397 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
7398 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 7398, __PRETTY_FUNCTION__))
;
7399 if (objc_class_type) {
7400 uint32_t child_idx = 0;
7401 clang::ObjCInterfaceDecl *class_interface_decl =
7402 objc_class_type->getInterface();
7403
7404 if (class_interface_decl) {
7405 clang::ObjCInterfaceDecl::ivar_iterator ivar_pos,
7406 ivar_end = class_interface_decl->ivar_end();
7407 clang::ObjCInterfaceDecl *superclass_interface_decl =
7408 class_interface_decl->getSuperClass();
7409
7410 for (ivar_pos = class_interface_decl->ivar_begin();
7411 ivar_pos != ivar_end; ++ivar_pos, ++child_idx) {
7412 const clang::ObjCIvarDecl *ivar_decl = *ivar_pos;
7413
7414 if (ivar_decl->getName().equals(name_sref)) {
7415 if ((!omit_empty_base_classes && superclass_interface_decl) ||
7416 (omit_empty_base_classes &&
7417 ObjCDeclHasIVars(superclass_interface_decl, true)))
7418 ++child_idx;
7419
7420 return child_idx;
7421 }
7422 }
7423
7424 if (superclass_interface_decl) {
7425 if (superclass_interface_decl->getName().equals(name_sref))
7426 return 0;
7427 }
7428 }
7429 }
7430 }
7431 break;
7432
7433 case clang::Type::ObjCObjectPointer: {
7434 CompilerType pointee_clang_type(
7435 getASTContext(),
7436 llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
7437 ->getPointeeType());
7438 return pointee_clang_type.GetIndexOfChildWithName(
7439 name, omit_empty_base_classes);
7440 } break;
7441
7442 case clang::Type::ConstantArray: {
7443 // const clang::ConstantArrayType *array =
7444 // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr());
7445 // const uint64_t element_count =
7446 // array->getSize().getLimitedValue();
7447 //
7448 // if (idx < element_count)
7449 // {
7450 // std::pair<uint64_t, unsigned> field_type_info =
7451 // ast->getTypeInfo(array->getElementType());
7452 //
7453 // char element_name[32];
7454 // ::snprintf (element_name, sizeof (element_name),
7455 // "%s[%u]", parent_name ? parent_name : "", idx);
7456 //
7457 // child_name.assign(element_name);
7458 // assert(field_type_info.first % 8 == 0);
7459 // child_byte_size = field_type_info.first / 8;
7460 // child_byte_offset = idx * child_byte_size;
7461 // return array->getElementType().getAsOpaquePtr();
7462 // }
7463 } break;
7464
7465 // case clang::Type::MemberPointerType:
7466 // {
7467 // MemberPointerType *mem_ptr_type =
7468 // llvm::cast<MemberPointerType>(qual_type.getTypePtr());
7469 // clang::QualType pointee_type =
7470 // mem_ptr_type->getPointeeType();
7471 //
7472 // if (ClangASTContext::IsAggregateType
7473 // (pointee_type.getAsOpaquePtr()))
7474 // {
7475 // return GetIndexOfChildWithName (ast,
7476 // mem_ptr_type->getPointeeType().getAsOpaquePtr(),
7477 // name);
7478 // }
7479 // }
7480 // break;
7481 //
7482 case clang::Type::LValueReference:
7483 case clang::Type::RValueReference: {
7484 const clang::ReferenceType *reference_type =
7485 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
7486 CompilerType pointee_type(getASTContext(),
7487 reference_type->getPointeeType());
7488
7489 if (pointee_type.IsAggregateType()) {
7490 return pointee_type.GetIndexOfChildWithName(name,
7491 omit_empty_base_classes);
7492 }
7493 } break;
7494
7495 case clang::Type::Pointer: {
7496 const clang::PointerType *pointer_type =
7497 llvm::cast<clang::PointerType>(qual_type.getTypePtr());
7498 CompilerType pointee_type(getASTContext(),
7499 pointer_type->getPointeeType());
7500
7501 if (pointee_type.IsAggregateType()) {
7502 return pointee_type.GetIndexOfChildWithName(name,
7503 omit_empty_base_classes);
7504 } else {
7505 // if (parent_name)
7506 // {
7507 // child_name.assign(1, '*');
7508 // child_name += parent_name;
7509 // }
7510 //
7511 // // We have a pointer to an simple type
7512 // if (idx == 0)
7513 // {
7514 // std::pair<uint64_t, unsigned> clang_type_info
7515 // = ast->getTypeInfo(pointee_type);
7516 // assert(clang_type_info.first % 8 == 0);
7517 // child_byte_size = clang_type_info.first / 8;
7518 // child_byte_offset = 0;
7519 // return pointee_type.getAsOpaquePtr();
7520 // }
7521 }
7522 } break;
7523
7524 case clang::Type::Auto:
7525 return CompilerType(
7526 getASTContext(),
7527 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
7528 .GetIndexOfChildWithName(name, omit_empty_base_classes);
7529
7530 case clang::Type::Elaborated:
7531 return CompilerType(
7532 getASTContext(),
7533 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
7534 .GetIndexOfChildWithName(name, omit_empty_base_classes);
7535
7536 case clang::Type::Paren:
7537 return CompilerType(getASTContext(),
7538 llvm::cast<clang::ParenType>(qual_type)->desugar())
7539 .GetIndexOfChildWithName(name, omit_empty_base_classes);
7540
7541 case clang::Type::Typedef:
7542 return CompilerType(getASTContext(),
7543 llvm::cast<clang::TypedefType>(qual_type)
7544 ->getDecl()
7545 ->getUnderlyingType())
7546 .GetIndexOfChildWithName(name, omit_empty_base_classes);
7547
7548 default:
7549 break;
7550 }
7551 }
7552 return UINT32_MAX(4294967295U);
7553}
7554
7555size_t
7556ClangASTContext::GetNumTemplateArguments(lldb::opaque_compiler_type_t type) {
7557 if (!type)
7558 return 0;
7559
7560 clang::QualType qual_type(GetCanonicalQualType(type));
7561 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
7562 switch (type_class) {
7563 case clang::Type::Record:
7564 if (GetCompleteType(type)) {
7565 const clang::CXXRecordDecl *cxx_record_decl =
7566 qual_type->getAsCXXRecordDecl();
7567 if (cxx_record_decl) {
7568 const clang::ClassTemplateSpecializationDecl *template_decl =
7569 llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>(
7570 cxx_record_decl);
7571 if (template_decl)
7572 return template_decl->getTemplateArgs().size();
7573 }
7574 }
7575 break;
7576
7577 case clang::Type::Typedef:
7578 return (CompilerType(getASTContext(),
7579 llvm::cast<clang::TypedefType>(qual_type)
7580 ->getDecl()
7581 ->getUnderlyingType()))
7582 .GetNumTemplateArguments();
7583
7584 case clang::Type::Auto:
7585 return (CompilerType(
7586 getASTContext(),
7587 llvm::cast<clang::AutoType>(qual_type)->getDeducedType()))
7588 .GetNumTemplateArguments();
7589
7590 case clang::Type::Elaborated:
7591 return (CompilerType(
7592 getASTContext(),
7593 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType()))
7594 .GetNumTemplateArguments();
7595
7596 case clang::Type::Paren:
7597 return (CompilerType(getASTContext(),
7598 llvm::cast<clang::ParenType>(qual_type)->desugar()))
7599 .GetNumTemplateArguments();
7600
7601 default:
7602 break;
7603 }
7604
7605 return 0;
7606}
7607
7608const clang::ClassTemplateSpecializationDecl *
7609ClangASTContext::GetAsTemplateSpecialization(
7610 lldb::opaque_compiler_type_t type) {
7611 if (!type)
7612 return nullptr;
7613
7614 clang::QualType qual_type(GetCanonicalQualType(type));
7615 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
7616 switch (type_class) {
7617 case clang::Type::Record: {
7618 if (! GetCompleteType(type))
7619 return nullptr;
7620 const clang::CXXRecordDecl *cxx_record_decl =
7621 qual_type->getAsCXXRecordDecl();
7622 if (!cxx_record_decl)
7623 return nullptr;
7624 return llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>(
7625 cxx_record_decl);
7626 }
7627
7628 case clang::Type::Typedef:
7629 return GetAsTemplateSpecialization(llvm::cast<clang::TypedefType>(qual_type)
7630 ->getDecl()
7631 ->getUnderlyingType()
7632 .getAsOpaquePtr());
7633
7634 case clang::Type::Auto:
7635 return GetAsTemplateSpecialization(llvm::cast<clang::AutoType>(qual_type)
7636 ->getDeducedType()
7637 .getAsOpaquePtr());
7638
7639 case clang::Type::Elaborated:
7640 return GetAsTemplateSpecialization(
7641 llvm::cast<clang::ElaboratedType>(qual_type)
7642 ->getNamedType()
7643 .getAsOpaquePtr());
7644
7645 case clang::Type::Paren:
7646 return GetAsTemplateSpecialization(
7647 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr());
7648
7649 default:
7650 return nullptr;
7651 }
7652}
7653
7654lldb::TemplateArgumentKind
7655ClangASTContext::GetTemplateArgumentKind(lldb::opaque_compiler_type_t type,
7656 size_t arg_idx) {
7657 const clang::ClassTemplateSpecializationDecl *template_decl =
7658 GetAsTemplateSpecialization(type);
7659 if (! template_decl || arg_idx >= template_decl->getTemplateArgs().size())
7660 return eTemplateArgumentKindNull;
7661
7662 switch (template_decl->getTemplateArgs()[arg_idx].getKind()) {
7663 case clang::TemplateArgument::Null:
7664 return eTemplateArgumentKindNull;
7665
7666 case clang::TemplateArgument::NullPtr:
7667 return eTemplateArgumentKindNullPtr;
7668
7669 case clang::TemplateArgument::Type:
7670 return eTemplateArgumentKindType;
7671
7672 case clang::TemplateArgument::Declaration:
7673 return eTemplateArgumentKindDeclaration;
7674
7675 case clang::TemplateArgument::Integral:
7676 return eTemplateArgumentKindIntegral;
7677
7678 case clang::TemplateArgument::Template:
7679 return eTemplateArgumentKindTemplate;
7680
7681 case clang::TemplateArgument::TemplateExpansion:
7682 return eTemplateArgumentKindTemplateExpansion;
7683
7684 case clang::TemplateArgument::Expression:
7685 return eTemplateArgumentKindExpression;
7686
7687 case clang::TemplateArgument::Pack:
7688 return eTemplateArgumentKindPack;
7689 }
7690 llvm_unreachable("Unhandled clang::TemplateArgument::ArgKind")::llvm::llvm_unreachable_internal("Unhandled clang::TemplateArgument::ArgKind"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 7690)
;
7691}
7692
7693CompilerType
7694ClangASTContext::GetTypeTemplateArgument(lldb::opaque_compiler_type_t type,
7695 size_t idx) {
7696 const clang::ClassTemplateSpecializationDecl *template_decl =
7697 GetAsTemplateSpecialization(type);
7698 if (!template_decl || idx >= template_decl->getTemplateArgs().size())
7699 return CompilerType();
7700
7701 const clang::TemplateArgument &template_arg =
7702 template_decl->getTemplateArgs()[idx];
7703 if (template_arg.getKind() != clang::TemplateArgument::Type)
7704 return CompilerType();
7705
7706 return CompilerType(getASTContext(), template_arg.getAsType());
7707}
7708
7709llvm::Optional<CompilerType::IntegralTemplateArgument>
7710ClangASTContext::GetIntegralTemplateArgument(lldb::opaque_compiler_type_t type,
7711 size_t idx) {
7712 const clang::ClassTemplateSpecializationDecl *template_decl =
7713 GetAsTemplateSpecialization(type);
7714 if (! template_decl || idx >= template_decl->getTemplateArgs().size())
7715 return llvm::None;
7716
7717 const clang::TemplateArgument &template_arg =
7718 template_decl->getTemplateArgs()[idx];
7719 if (template_arg.getKind() != clang::TemplateArgument::Integral)
7720 return llvm::None;
7721
7722 return {{template_arg.getAsIntegral(),
7723 CompilerType(getASTContext(), template_arg.getIntegralType())}};
7724}
7725
7726CompilerType ClangASTContext::GetTypeForFormatters(void *type) {
7727 if (type)
7728 return ClangUtil::RemoveFastQualifiers(CompilerType(this, type));
7729 return CompilerType();
7730}
7731
7732clang::EnumDecl *ClangASTContext::GetAsEnumDecl(const CompilerType &type) {
7733 const clang::EnumType *enutype =
7734 llvm::dyn_cast<clang::EnumType>(ClangUtil::GetCanonicalQualType(type));
7735 if (enutype)
7736 return enutype->getDecl();
7737 return NULL__null;
7738}
7739
7740clang::RecordDecl *ClangASTContext::GetAsRecordDecl(const CompilerType &type) {
7741 const clang::RecordType *record_type =
7742 llvm::dyn_cast<clang::RecordType>(ClangUtil::GetCanonicalQualType(type));
7743 if (record_type)
7744 return record_type->getDecl();
7745 return nullptr;
7746}
7747
7748clang::TagDecl *ClangASTContext::GetAsTagDecl(const CompilerType &type) {
7749 clang::QualType qual_type = ClangUtil::GetCanonicalQualType(type);
7750 if (qual_type.isNull())
7751 return nullptr;
7752 else
7753 return qual_type->getAsTagDecl();
7754}
7755
7756clang::TypedefNameDecl *
7757ClangASTContext::GetAsTypedefDecl(const CompilerType &type) {
7758 const clang::TypedefType *typedef_type =
7759 llvm::dyn_cast<clang::TypedefType>(ClangUtil::GetQualType(type));
7760 if (typedef_type)
7761 return typedef_type->getDecl();
7762 return nullptr;
7763}
7764
7765clang::CXXRecordDecl *
7766ClangASTContext::GetAsCXXRecordDecl(lldb::opaque_compiler_type_t type) {
7767 return GetCanonicalQualType(type)->getAsCXXRecordDecl();
7768}
7769
7770clang::ObjCInterfaceDecl *
7771ClangASTContext::GetAsObjCInterfaceDecl(const CompilerType &type) {
7772 const clang::ObjCObjectType *objc_class_type =
7773 llvm::dyn_cast<clang::ObjCObjectType>(
7774 ClangUtil::GetCanonicalQualType(type));
7775 if (objc_class_type)
7776 return objc_class_type->getInterface();
7777 return nullptr;
7778}
7779
7780clang::FieldDecl *ClangASTContext::AddFieldToRecordType(
7781 const CompilerType &type, llvm::StringRef name,
7782 const CompilerType &field_clang_type, AccessType access,
7783 uint32_t bitfield_bit_size) {
7784 if (!type.IsValid() || !field_clang_type.IsValid())
7785 return nullptr;
7786 ClangASTContext *ast =
7787 llvm::dyn_cast_or_null<ClangASTContext>(type.GetTypeSystem());
7788 if (!ast)
7789 return nullptr;
7790 clang::ASTContext *clang_ast = ast->getASTContext();
7791 clang::IdentifierInfo *ident = nullptr;
7792 if (!name.empty())
7793 ident = &clang_ast->Idents.get(name);
7794
7795 clang::FieldDecl *field = nullptr;
7796
7797 clang::Expr *bit_width = nullptr;
7798 if (bitfield_bit_size != 0) {
7799 llvm::APInt bitfield_bit_size_apint(
7800 clang_ast->getTypeSize(clang_ast->IntTy), bitfield_bit_size);
7801 bit_width = new (*clang_ast)
7802 clang::IntegerLiteral(*clang_ast, bitfield_bit_size_apint,
7803 clang_ast->IntTy, clang::SourceLocation());
7804 }
7805
7806 clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type);
7807 if (record_decl) {
7808 field = clang::FieldDecl::Create(
7809 *clang_ast, record_decl, clang::SourceLocation(),
7810 clang::SourceLocation(),
7811 ident, // Identifier
7812 ClangUtil::GetQualType(field_clang_type), // Field type
7813 nullptr, // TInfo *
7814 bit_width, // BitWidth
7815 false, // Mutable
7816 clang::ICIS_NoInit); // HasInit
7817
7818 if (name.empty()) {
7819 // Determine whether this field corresponds to an anonymous struct or
7820 // union.
7821 if (const clang::TagType *TagT =
7822 field->getType()->getAs<clang::TagType>()) {
7823 if (clang::RecordDecl *Rec =
7824 llvm::dyn_cast<clang::RecordDecl>(TagT->getDecl()))
7825 if (!Rec->getDeclName()) {
7826 Rec->setAnonymousStructOrUnion(true);
7827 field->setImplicit();
7828 }
7829 }
7830 }
7831
7832 if (field) {
7833 field->setAccess(
7834 ClangASTContext::ConvertAccessTypeToAccessSpecifier(access));
7835
7836 record_decl->addDecl(field);
7837
7838#ifdef LLDB_CONFIGURATION_DEBUG
7839 VerifyDecl(field);
7840#endif
7841 }
7842 } else {
7843 clang::ObjCInterfaceDecl *class_interface_decl =
7844 ast->GetAsObjCInterfaceDecl(type);
7845
7846 if (class_interface_decl) {
7847 const bool is_synthesized = false;
7848
7849 field_clang_type.GetCompleteType();
7850
7851 field = clang::ObjCIvarDecl::Create(
7852 *clang_ast, class_interface_decl, clang::SourceLocation(),
7853 clang::SourceLocation(),
7854 ident, // Identifier
7855 ClangUtil::GetQualType(field_clang_type), // Field type
7856 nullptr, // TypeSourceInfo *
7857 ConvertAccessTypeToObjCIvarAccessControl(access), bit_width,
7858 is_synthesized);
7859
7860 if (field) {
7861 class_interface_decl->addDecl(field);
7862
7863#ifdef LLDB_CONFIGURATION_DEBUG
7864 VerifyDecl(field);
7865#endif
7866 }
7867 }
7868 }
7869 return field;
7870}
7871
7872void ClangASTContext::BuildIndirectFields(const CompilerType &type) {
7873 if (!type)
7874 return;
7875
7876 ClangASTContext *ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
7877 if (!ast)
7878 return;
7879
7880 clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type);
7881
7882 if (!record_decl)
7883 return;
7884
7885 typedef llvm::SmallVector<clang::IndirectFieldDecl *, 1> IndirectFieldVector;
7886
7887 IndirectFieldVector indirect_fields;
7888 clang::RecordDecl::field_iterator field_pos;
7889 clang::RecordDecl::field_iterator field_end_pos = record_decl->field_end();
7890 clang::RecordDecl::field_iterator last_field_pos = field_end_pos;
7891 for (field_pos = record_decl->field_begin(); field_pos != field_end_pos;
7892 last_field_pos = field_pos++) {
7893 if (field_pos->isAnonymousStructOrUnion()) {
7894 clang::QualType field_qual_type = field_pos->getType();
7895
7896 const clang::RecordType *field_record_type =
7897 field_qual_type->getAs<clang::RecordType>();
7898
7899 if (!field_record_type)
7900 continue;
7901
7902 clang::RecordDecl *field_record_decl = field_record_type->getDecl();
7903
7904 if (!field_record_decl)
7905 continue;
7906
7907 for (clang::RecordDecl::decl_iterator
7908 di = field_record_decl->decls_begin(),
7909 de = field_record_decl->decls_end();
7910 di != de; ++di) {
7911 if (clang::FieldDecl *nested_field_decl =
7912 llvm::dyn_cast<clang::FieldDecl>(*di)) {
7913 clang::NamedDecl **chain =
7914 new (*ast->getASTContext()) clang::NamedDecl *[2];
7915 chain[0] = *field_pos;
7916 chain[1] = nested_field_decl;
7917 clang::IndirectFieldDecl *indirect_field =
7918 clang::IndirectFieldDecl::Create(
7919 *ast->getASTContext(), record_decl, clang::SourceLocation(),
7920 nested_field_decl->getIdentifier(),
7921 nested_field_decl->getType(), {chain, 2});
7922
7923 indirect_field->setImplicit();
7924
7925 indirect_field->setAccess(ClangASTContext::UnifyAccessSpecifiers(
7926 field_pos->getAccess(), nested_field_decl->getAccess()));
7927
7928 indirect_fields.push_back(indirect_field);
7929 } else if (clang::IndirectFieldDecl *nested_indirect_field_decl =
7930 llvm::dyn_cast<clang::IndirectFieldDecl>(*di)) {
7931 size_t nested_chain_size =
7932 nested_indirect_field_decl->getChainingSize();
7933 clang::NamedDecl **chain = new (*ast->getASTContext())
7934 clang::NamedDecl *[nested_chain_size + 1];
7935 chain[0] = *field_pos;
7936
7937 int chain_index = 1;
7938 for (clang::IndirectFieldDecl::chain_iterator
7939 nci = nested_indirect_field_decl->chain_begin(),
7940 nce = nested_indirect_field_decl->chain_end();
7941 nci < nce; ++nci) {
7942 chain[chain_index] = *nci;
7943 chain_index++;
7944 }
7945
7946 clang::IndirectFieldDecl *indirect_field =
7947 clang::IndirectFieldDecl::Create(
7948 *ast->getASTContext(), record_decl, clang::SourceLocation(),
7949 nested_indirect_field_decl->getIdentifier(),
7950 nested_indirect_field_decl->getType(),
7951 {chain, nested_chain_size + 1});
7952
7953 indirect_field->setImplicit();
7954
7955 indirect_field->setAccess(ClangASTContext::UnifyAccessSpecifiers(
7956 field_pos->getAccess(), nested_indirect_field_decl->getAccess()));
7957
7958 indirect_fields.push_back(indirect_field);
7959 }
7960 }
7961 }
7962 }
7963
7964 // Check the last field to see if it has an incomplete array type as its last
7965 // member and if it does, the tell the record decl about it
7966 if (last_field_pos != field_end_pos) {
7967 if (last_field_pos->getType()->isIncompleteArrayType())
7968 record_decl->hasFlexibleArrayMember();
7969 }
7970
7971 for (IndirectFieldVector::iterator ifi = indirect_fields.begin(),
7972 ife = indirect_fields.end();
7973 ifi < ife; ++ifi) {
7974 record_decl->addDecl(*ifi);
7975 }
7976}
7977
7978void ClangASTContext::SetIsPacked(const CompilerType &type) {
7979 if (type) {
7980 ClangASTContext *ast =
7981 llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
7982 if (ast) {
7983 clang::RecordDecl *record_decl = GetAsRecordDecl(type);
7984
7985 if (!record_decl)
7986 return;
7987
7988 record_decl->addAttr(
7989 clang::PackedAttr::CreateImplicit(*ast->getASTContext()));
7990 }
7991 }
7992}
7993
7994clang::VarDecl *ClangASTContext::AddVariableToRecordType(
7995 const CompilerType &type, llvm::StringRef name,
7996 const CompilerType &var_type, AccessType access) {
7997 if (!type.IsValid() || !var_type.IsValid())
7998 return nullptr;
7999
8000 ClangASTContext *ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
8001 if (!ast)
8002 return nullptr;
8003
8004 clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type);
8005 if (!record_decl)
8006 return nullptr;
8007
8008 clang::VarDecl *var_decl = nullptr;
8009 clang::IdentifierInfo *ident = nullptr;
8010 if (!name.empty())
8011 ident = &ast->getASTContext()->Idents.get(name);
8012
8013 var_decl = clang::VarDecl::Create(
8014 *ast->getASTContext(), // ASTContext &
8015 record_decl, // DeclContext *
8016 clang::SourceLocation(), // clang::SourceLocation StartLoc
8017 clang::SourceLocation(), // clang::SourceLocation IdLoc
8018 ident, // clang::IdentifierInfo *
8019 ClangUtil::GetQualType(var_type), // Variable clang::QualType
8020 nullptr, // TypeSourceInfo *
8021 clang::SC_Static); // StorageClass
8022 if (!var_decl)
8023 return nullptr;
8024
8025 var_decl->setAccess(
8026 ClangASTContext::ConvertAccessTypeToAccessSpecifier(access));
8027 record_decl->addDecl(var_decl);
8028
8029#ifdef LLDB_CONFIGURATION_DEBUG
8030 VerifyDecl(var_decl);
8031#endif
8032
8033 return var_decl;
8034}
8035
8036clang::CXXMethodDecl *ClangASTContext::AddMethodToCXXRecordType(
8037 lldb::opaque_compiler_type_t type, const char *name, const char *mangled_name,
8038 const CompilerType &method_clang_type, lldb::AccessType access,
8039 bool is_virtual, bool is_static, bool is_inline, bool is_explicit,
8040 bool is_attr_used, bool is_artificial) {
8041 if (!type || !method_clang_type.IsValid() || name == nullptr ||
8042 name[0] == '\0')
8043 return nullptr;
8044
8045 clang::QualType record_qual_type(GetCanonicalQualType(type));
8046
8047 clang::CXXRecordDecl *cxx_record_decl =
8048 record_qual_type->getAsCXXRecordDecl();
8049
8050 if (cxx_record_decl == nullptr)
8051 return nullptr;
8052
8053 clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type));
8054
8055 clang::CXXMethodDecl *cxx_method_decl = nullptr;
8056
8057 clang::DeclarationName decl_name(&getASTContext()->Idents.get(name));
8058
8059 const clang::FunctionType *function_type =
8060 llvm::dyn_cast<clang::FunctionType>(method_qual_type.getTypePtr());
8061
8062 if (function_type == nullptr)
8063 return nullptr;
8064
8065 const clang::FunctionProtoType *method_function_prototype(
8066 llvm::dyn_cast<clang::FunctionProtoType>(function_type));
8067
8068 if (!method_function_prototype)
8069 return nullptr;
8070
8071 unsigned int num_params = method_function_prototype->getNumParams();
8072
8073 clang::CXXDestructorDecl *cxx_dtor_decl(nullptr);
8074 clang::CXXConstructorDecl *cxx_ctor_decl(nullptr);
8075
8076 if (is_artificial)
8077 return nullptr; // skip everything artificial
8078
8079 if (name[0] == '~') {
8080 cxx_dtor_decl = clang::CXXDestructorDecl::Create(
8081 *getASTContext(), cxx_record_decl, clang::SourceLocation(),
8082 clang::DeclarationNameInfo(
8083 getASTContext()->DeclarationNames.getCXXDestructorName(
8084 getASTContext()->getCanonicalType(record_qual_type)),
8085 clang::SourceLocation()),
8086 method_qual_type, nullptr, is_inline, is_artificial);
8087 cxx_method_decl = cxx_dtor_decl;
8088 } else if (decl_name == cxx_record_decl->getDeclName()) {
8089 cxx_ctor_decl = clang::CXXConstructorDecl::Create(
8090 *getASTContext(), cxx_record_decl, clang::SourceLocation(),
8091 clang::DeclarationNameInfo(
8092 getASTContext()->DeclarationNames.getCXXConstructorName(
8093 getASTContext()->getCanonicalType(record_qual_type)),
8094 clang::SourceLocation()),
8095 method_qual_type,
8096 nullptr, // TypeSourceInfo *
8097 is_explicit, is_inline, is_artificial, false /*is_constexpr*/);
8098 cxx_method_decl = cxx_ctor_decl;
8099 } else {
8100 clang::StorageClass SC = is_static ? clang::SC_Static : clang::SC_None;
8101 clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS;
8102
8103 if (IsOperator(name, op_kind)) {
8104 if (op_kind != clang::NUM_OVERLOADED_OPERATORS) {
8105 // Check the number of operator parameters. Sometimes we have seen bad
8106 // DWARF that doesn't correctly describe operators and if we try to
8107 // create a method and add it to the class, clang will assert and
8108 // crash, so we need to make sure things are acceptable.
8109 const bool is_method = true;
8110 if (!ClangASTContext::CheckOverloadedOperatorKindParameterCount(
8111 is_method, op_kind, num_params))
8112 return nullptr;
8113 cxx_method_decl = clang::CXXMethodDecl::Create(
8114 *getASTContext(), cxx_record_decl, clang::SourceLocation(),
8115 clang::DeclarationNameInfo(
8116 getASTContext()->DeclarationNames.getCXXOperatorName(op_kind),
8117 clang::SourceLocation()),
8118 method_qual_type,
8119 nullptr, // TypeSourceInfo *
8120 SC, is_inline, false /*is_constexpr*/, clang::SourceLocation());
8121 } else if (num_params == 0) {
8122 // Conversion operators don't take params...
8123 cxx_method_decl = clang::CXXConversionDecl::Create(
8124 *getASTContext(), cxx_record_decl, clang::SourceLocation(),
8125 clang::DeclarationNameInfo(
8126 getASTContext()->DeclarationNames.getCXXConversionFunctionName(
8127 getASTContext()->getCanonicalType(
8128 function_type->getReturnType())),
8129 clang::SourceLocation()),
8130 method_qual_type,
8131 nullptr, // TypeSourceInfo *
8132 is_inline, is_explicit, false /*is_constexpr*/,
8133 clang::SourceLocation());
8134 }
8135 }
8136
8137 if (cxx_method_decl == nullptr) {
8138 cxx_method_decl = clang::CXXMethodDecl::Create(
8139 *getASTContext(), cxx_record_decl, clang::SourceLocation(),
8140 clang::DeclarationNameInfo(decl_name, clang::SourceLocation()),
8141 method_qual_type,
8142 nullptr, // TypeSourceInfo *
8143 SC, is_inline, false /*is_constexpr*/, clang::SourceLocation());
8144 }
8145 }
8146
8147 clang::AccessSpecifier access_specifier =
8148 ClangASTContext::ConvertAccessTypeToAccessSpecifier(access);
8149
8150 cxx_method_decl->setAccess(access_specifier);
8151 cxx_method_decl->setVirtualAsWritten(is_virtual);
8152
8153 if (is_attr_used)
8154 cxx_method_decl->addAttr(clang::UsedAttr::CreateImplicit(*getASTContext()));
8155
8156 if (mangled_name != NULL__null) {
8157 cxx_method_decl->addAttr(
8158 clang::AsmLabelAttr::CreateImplicit(*getASTContext(), mangled_name));
8159 }
8160
8161 // Populate the method decl with parameter decls
8162
8163 llvm::SmallVector<clang::ParmVarDecl *, 12> params;
8164
8165 for (unsigned param_index = 0; param_index < num_params; ++param_index) {
8166 params.push_back(clang::ParmVarDecl::Create(
8167 *getASTContext(), cxx_method_decl, clang::SourceLocation(),
8168 clang::SourceLocation(),
8169 nullptr, // anonymous
8170 method_function_prototype->getParamType(param_index), nullptr,
8171 clang::SC_None, nullptr));
8172 }
8173
8174 cxx_method_decl->setParams(llvm::ArrayRef<clang::ParmVarDecl *>(params));
8175
8176 cxx_record_decl->addDecl(cxx_method_decl);
8177
8178 // Sometimes the debug info will mention a constructor (default/copy/move),
8179 // destructor, or assignment operator (copy/move) but there won't be any
8180 // version of this in the code. So we check if the function was artificially
8181 // generated and if it is trivial and this lets the compiler/backend know
8182 // that it can inline the IR for these when it needs to and we can avoid a
8183 // "missing function" error when running expressions.
8184
8185 if (is_artificial) {
8186 if (cxx_ctor_decl && ((cxx_ctor_decl->isDefaultConstructor() &&
8187 cxx_record_decl->hasTrivialDefaultConstructor()) ||
8188 (cxx_ctor_decl->isCopyConstructor() &&
8189 cxx_record_decl->hasTrivialCopyConstructor()) ||
8190 (cxx_ctor_decl->isMoveConstructor() &&
8191 cxx_record_decl->hasTrivialMoveConstructor()))) {
8192 cxx_ctor_decl->setDefaulted();
8193 cxx_ctor_decl->setTrivial(true);
8194 } else if (cxx_dtor_decl) {
8195 if (cxx_record_decl->hasTrivialDestructor()) {
8196 cxx_dtor_decl->setDefaulted();
8197 cxx_dtor_decl->setTrivial(true);
8198 }
8199 } else if ((cxx_method_decl->isCopyAssignmentOperator() &&
8200 cxx_record_decl->hasTrivialCopyAssignment()) ||
8201 (cxx_method_decl->isMoveAssignmentOperator() &&
8202 cxx_record_decl->hasTrivialMoveAssignment())) {
8203 cxx_method_decl->setDefaulted();
8204 cxx_method_decl->setTrivial(true);
8205 }
8206 }
8207
8208#ifdef LLDB_CONFIGURATION_DEBUG
8209 VerifyDecl(cxx_method_decl);
8210#endif
8211
8212 // printf ("decl->isPolymorphic() = %i\n",
8213 // cxx_record_decl->isPolymorphic());
8214 // printf ("decl->isAggregate() = %i\n",
8215 // cxx_record_decl->isAggregate());
8216 // printf ("decl->isPOD() = %i\n",
8217 // cxx_record_decl->isPOD());
8218 // printf ("decl->isEmpty() = %i\n",
8219 // cxx_record_decl->isEmpty());
8220 // printf ("decl->isAbstract() = %i\n",
8221 // cxx_record_decl->isAbstract());
8222 // printf ("decl->hasTrivialConstructor() = %i\n",
8223 // cxx_record_decl->hasTrivialConstructor());
8224 // printf ("decl->hasTrivialCopyConstructor() = %i\n",
8225 // cxx_record_decl->hasTrivialCopyConstructor());
8226 // printf ("decl->hasTrivialCopyAssignment() = %i\n",
8227 // cxx_record_decl->hasTrivialCopyAssignment());
8228 // printf ("decl->hasTrivialDestructor() = %i\n",
8229 // cxx_record_decl->hasTrivialDestructor());
8230 return cxx_method_decl;
8231}
8232
8233void ClangASTContext::AddMethodOverridesForCXXRecordType(
8234 lldb::opaque_compiler_type_t type) {
8235 if (auto *record = GetAsCXXRecordDecl(type))
8236 for (auto *method : record->methods())
8237 addOverridesForMethod(method);
8238}
8239
8240#pragma mark C++ Base Classes
8241
8242std::unique_ptr<clang::CXXBaseSpecifier>
8243ClangASTContext::CreateBaseClassSpecifier(lldb::opaque_compiler_type_t type,
8244 AccessType access, bool is_virtual,
8245 bool base_of_class) {
8246 if (!type)
8247 return nullptr;
8248
8249 return llvm::make_unique<clang::CXXBaseSpecifier>(
8250 clang::SourceRange(), is_virtual, base_of_class,
8251 ClangASTContext::ConvertAccessTypeToAccessSpecifier(access),
8252 getASTContext()->getTrivialTypeSourceInfo(GetQualType(type)),
8253 clang::SourceLocation());
8254}
8255
8256bool ClangASTContext::TransferBaseClasses(
8257 lldb::opaque_compiler_type_t type,
8258 std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> bases) {
8259 if (!type)
8260 return false;
8261 clang::CXXRecordDecl *cxx_record_decl = GetAsCXXRecordDecl(type);
8262 if (!cxx_record_decl)
8263 return false;
8264 std::vector<clang::CXXBaseSpecifier *> raw_bases;
8265 raw_bases.reserve(bases.size());
8266
8267 // Clang will make a copy of them, so it's ok that we pass pointers that we're
8268 // about to destroy.
8269 for (auto &b : bases)
8270 raw_bases.push_back(b.get());
8271 cxx_record_decl->setBases(raw_bases.data(), raw_bases.size());
8272 return true;
8273}
8274
8275bool ClangASTContext::SetObjCSuperClass(
8276 const CompilerType &type, const CompilerType &superclass_clang_type) {
8277 ClangASTContext *ast =
8278 llvm::dyn_cast_or_null<ClangASTContext>(type.GetTypeSystem());
8279 if (!ast)
8280 return false;
8281 clang::ASTContext *clang_ast = ast->getASTContext();
8282
8283 if (type && superclass_clang_type.IsValid() &&
8284 superclass_clang_type.GetTypeSystem() == type.GetTypeSystem()) {
8285 clang::ObjCInterfaceDecl *class_interface_decl =
8286 GetAsObjCInterfaceDecl(type);
8287 clang::ObjCInterfaceDecl *super_interface_decl =
8288 GetAsObjCInterfaceDecl(superclass_clang_type);
8289 if (class_interface_decl && super_interface_decl) {
8290 class_interface_decl->setSuperClass(clang_ast->getTrivialTypeSourceInfo(
8291 clang_ast->getObjCInterfaceType(super_interface_decl)));
8292 return true;
8293 }
8294 }
8295 return false;
8296}
8297
8298bool ClangASTContext::AddObjCClassProperty(
8299 const CompilerType &type, const char *property_name,
8300 const CompilerType &property_clang_type, clang::ObjCIvarDecl *ivar_decl,
8301 const char *property_setter_name, const char *property_getter_name,
8302 uint32_t property_attributes, ClangASTMetadata *metadata) {
8303 if (!type || !property_clang_type.IsValid() || property_name == nullptr ||
8304 property_name[0] == '\0')
8305 return false;
8306 ClangASTContext *ast = llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
8307 if (!ast)
8308 return false;
8309 clang::ASTContext *clang_ast = ast->getASTContext();
8310
8311 clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type);
8312
8313 if (class_interface_decl) {
8314 CompilerType property_clang_type_to_access;
8315
8316 if (property_clang_type.IsValid())
8317 property_clang_type_to_access = property_clang_type;
8318 else if (ivar_decl)
8319 property_clang_type_to_access =
8320 CompilerType(clang_ast, ivar_decl->getType());
8321
8322 if (class_interface_decl && property_clang_type_to_access.IsValid()) {
8323 clang::TypeSourceInfo *prop_type_source;
8324 if (ivar_decl)
8325 prop_type_source =
8326 clang_ast->getTrivialTypeSourceInfo(ivar_decl->getType());
8327 else
8328 prop_type_source = clang_ast->getTrivialTypeSourceInfo(
8329 ClangUtil::GetQualType(property_clang_type));
8330
8331 clang::ObjCPropertyDecl *property_decl = clang::ObjCPropertyDecl::Create(
8332 *clang_ast, class_interface_decl,
8333 clang::SourceLocation(), // Source Location
8334 &clang_ast->Idents.get(property_name),
8335 clang::SourceLocation(), // Source Location for AT
8336 clang::SourceLocation(), // Source location for (
8337 ivar_decl ? ivar_decl->getType()
8338 : ClangUtil::GetQualType(property_clang_type),
8339 prop_type_source);
8340
8341 if (property_decl) {
8342 if (metadata)
8343 ClangASTContext::SetMetadata(clang_ast, property_decl, *metadata);
8344
8345 class_interface_decl->addDecl(property_decl);
8346
8347 clang::Selector setter_sel, getter_sel;
8348
8349 if (property_setter_name != nullptr) {
8350 std::string property_setter_no_colon(
8351 property_setter_name, strlen(property_setter_name) - 1);
8352 clang::IdentifierInfo *setter_ident =
8353 &clang_ast->Idents.get(property_setter_no_colon);
8354 setter_sel = clang_ast->Selectors.getSelector(1, &setter_ident);
8355 } else if (!(property_attributes & DW_APPLE_PROPERTY_readonly)) {
8356 std::string setter_sel_string("set");
8357 setter_sel_string.push_back(::toupper(property_name[0]));
8358 setter_sel_string.append(&property_name[1]);
8359 clang::IdentifierInfo *setter_ident =
8360 &clang_ast->Idents.get(setter_sel_string);
8361 setter_sel = clang_ast->Selectors.getSelector(1, &setter_ident);
8362 }
8363 property_decl->setSetterName(setter_sel);
8364 property_decl->setPropertyAttributes(
8365 clang::ObjCPropertyDecl::OBJC_PR_setter);
8366
8367 if (property_getter_name != nullptr) {
8368 clang::IdentifierInfo *getter_ident =
8369 &clang_ast->Idents.get(property_getter_name);
8370 getter_sel = clang_ast->Selectors.getSelector(0, &getter_ident);
8371 } else {
8372 clang::IdentifierInfo *getter_ident =
8373 &clang_ast->Idents.get(property_name);
8374 getter_sel = clang_ast->Selectors.getSelector(0, &getter_ident);
8375 }
8376 property_decl->setGetterName(getter_sel);
8377 property_decl->setPropertyAttributes(
8378 clang::ObjCPropertyDecl::OBJC_PR_getter);
8379
8380 if (ivar_decl)
8381 property_decl->setPropertyIvarDecl(ivar_decl);
8382
8383 if (property_attributes & DW_APPLE_PROPERTY_readonly)
8384 property_decl->setPropertyAttributes(
8385 clang::ObjCPropertyDecl::OBJC_PR_readonly);
8386 if (property_attributes & DW_APPLE_PROPERTY_readwrite)
8387 property_decl->setPropertyAttributes(
8388 clang::ObjCPropertyDecl::OBJC_PR_readwrite);
8389 if (property_attributes & DW_APPLE_PROPERTY_assign)
8390 property_decl->setPropertyAttributes(
8391 clang::ObjCPropertyDecl::OBJC_PR_assign);
8392 if (property_attributes & DW_APPLE_PROPERTY_retain)
8393 property_decl->setPropertyAttributes(
8394 clang::ObjCPropertyDecl::OBJC_PR_retain);
8395 if (property_attributes & DW_APPLE_PROPERTY_copy)
8396 property_decl->setPropertyAttributes(
8397 clang::ObjCPropertyDecl::OBJC_PR_copy);
8398 if (property_attributes & DW_APPLE_PROPERTY_nonatomic)
8399 property_decl->setPropertyAttributes(
8400 clang::ObjCPropertyDecl::OBJC_PR_nonatomic);
8401 if (property_attributes & clang::ObjCPropertyDecl::OBJC_PR_nullability)
8402 property_decl->setPropertyAttributes(
8403 clang::ObjCPropertyDecl::OBJC_PR_nullability);
8404 if (property_attributes &
8405 clang::ObjCPropertyDecl::OBJC_PR_null_resettable)
8406 property_decl->setPropertyAttributes(
8407 clang::ObjCPropertyDecl::OBJC_PR_null_resettable);
8408 if (property_attributes & clang::ObjCPropertyDecl::OBJC_PR_class)
8409 property_decl->setPropertyAttributes(
8410 clang::ObjCPropertyDecl::OBJC_PR_class);
8411
8412 const bool isInstance =
8413 (property_attributes & clang::ObjCPropertyDecl::OBJC_PR_class) == 0;
8414
8415 if (!getter_sel.isNull() &&
8416 !(isInstance
8417 ? class_interface_decl->lookupInstanceMethod(getter_sel)
8418 : class_interface_decl->lookupClassMethod(getter_sel))) {
8419 const bool isVariadic = false;
8420 const bool isSynthesized = false;
8421 const bool isImplicitlyDeclared = true;
8422 const bool isDefined = false;
8423 const clang::ObjCMethodDecl::ImplementationControl impControl =
8424 clang::ObjCMethodDecl::None;
8425 const bool HasRelatedResultType = false;
8426
8427 clang::ObjCMethodDecl *getter = clang::ObjCMethodDecl::Create(
8428 *clang_ast, clang::SourceLocation(), clang::SourceLocation(),
8429 getter_sel, ClangUtil::GetQualType(property_clang_type_to_access),
8430 nullptr, class_interface_decl, isInstance, isVariadic,
8431 isSynthesized, isImplicitlyDeclared, isDefined, impControl,
8432 HasRelatedResultType);
8433
8434 if (getter && metadata)
8435 ClangASTContext::SetMetadata(clang_ast, getter, *metadata);
8436
8437 if (getter) {
8438 getter->setMethodParams(*clang_ast,
8439 llvm::ArrayRef<clang::ParmVarDecl *>(),
8440 llvm::ArrayRef<clang::SourceLocation>());
8441
8442 class_interface_decl->addDecl(getter);
8443 }
8444 }
8445
8446 if (!setter_sel.isNull() &&
8447 !(isInstance
8448 ? class_interface_decl->lookupInstanceMethod(setter_sel)
8449 : class_interface_decl->lookupClassMethod(setter_sel))) {
8450 clang::QualType result_type = clang_ast->VoidTy;
8451 const bool isVariadic = false;
8452 const bool isSynthesized = false;
8453 const bool isImplicitlyDeclared = true;
8454 const bool isDefined = false;
8455 const clang::ObjCMethodDecl::ImplementationControl impControl =
8456 clang::ObjCMethodDecl::None;
8457 const bool HasRelatedResultType = false;
8458
8459 clang::ObjCMethodDecl *setter = clang::ObjCMethodDecl::Create(
8460 *clang_ast, clang::SourceLocation(), clang::SourceLocation(),
8461 setter_sel, result_type, nullptr, class_interface_decl,
8462 isInstance, isVariadic, isSynthesized, isImplicitlyDeclared,
8463 isDefined, impControl, HasRelatedResultType);
8464
8465 if (setter && metadata)
8466 ClangASTContext::SetMetadata(clang_ast, setter, *metadata);
8467
8468 llvm::SmallVector<clang::ParmVarDecl *, 1> params;
8469
8470 params.push_back(clang::ParmVarDecl::Create(
8471 *clang_ast, setter, clang::SourceLocation(),
8472 clang::SourceLocation(),
8473 nullptr, // anonymous
8474 ClangUtil::GetQualType(property_clang_type_to_access), nullptr,
8475 clang::SC_Auto, nullptr));
8476
8477 if (setter) {
8478 setter->setMethodParams(
8479 *clang_ast, llvm::ArrayRef<clang::ParmVarDecl *>(params),
8480 llvm::ArrayRef<clang::SourceLocation>());
8481
8482 class_interface_decl->addDecl(setter);
8483 }
8484 }
8485
8486 return true;
8487 }
8488 }
8489 }
8490 return false;
8491}
8492
8493bool ClangASTContext::IsObjCClassTypeAndHasIVars(const CompilerType &type,
8494 bool check_superclass) {
8495 clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type);
8496 if (class_interface_decl)
8497 return ObjCDeclHasIVars(class_interface_decl, check_superclass);
8498 return false;
8499}
8500
8501clang::ObjCMethodDecl *ClangASTContext::AddMethodToObjCObjectType(
8502 const CompilerType &type,
8503 const char *name, // the full symbol name as seen in the symbol table
8504 // (lldb::opaque_compiler_type_t type, "-[NString
8505 // stringWithCString:]")
8506 const CompilerType &method_clang_type, lldb::AccessType access,
8507 bool is_artificial, bool is_variadic) {
8508 if (!type || !method_clang_type.IsValid())
8509 return nullptr;
8510
8511 clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type);
8512
8513 if (class_interface_decl == nullptr)
8514 return nullptr;
8515 ClangASTContext *lldb_ast =
8516 llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
8517 if (lldb_ast == nullptr)
8518 return nullptr;
8519 clang::ASTContext *ast = lldb_ast->getASTContext();
8520
8521 const char *selector_start = ::strchr(name, ' ');
8522 if (selector_start == nullptr)
8523 return nullptr;
8524
8525 selector_start++;
8526 llvm::SmallVector<clang::IdentifierInfo *, 12> selector_idents;
8527
8528 size_t len = 0;
8529 const char *start;
8530 // printf ("name = '%s'\n", name);
8531
8532 unsigned num_selectors_with_args = 0;
8533 for (start = selector_start; start && *start != '\0' && *start != ']';
8534 start += len) {
8535 len = ::strcspn(start, ":]");
8536 bool has_arg = (start[len] == ':');
8537 if (has_arg)
8538 ++num_selectors_with_args;
8539 selector_idents.push_back(&ast->Idents.get(llvm::StringRef(start, len)));
8540 if (has_arg)
8541 len += 1;
8542 }
8543
8544 if (selector_idents.size() == 0)
8545 return nullptr;
8546
8547 clang::Selector method_selector = ast->Selectors.getSelector(
8548 num_selectors_with_args ? selector_idents.size() : 0,
8549 selector_idents.data());
8550
8551 clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type));
8552
8553 // Populate the method decl with parameter decls
8554 const clang::Type *method_type(method_qual_type.getTypePtr());
8555
8556 if (method_type == nullptr)
8557 return nullptr;
8558
8559 const clang::FunctionProtoType *method_function_prototype(
8560 llvm::dyn_cast<clang::FunctionProtoType>(method_type));
8561
8562 if (!method_function_prototype)
8563 return nullptr;
8564
8565 bool is_synthesized = false;
8566 bool is_defined = false;
8567 clang::ObjCMethodDecl::ImplementationControl imp_control =
8568 clang::ObjCMethodDecl::None;
8569
8570 const unsigned num_args = method_function_prototype->getNumParams();
8571
8572 if (num_args != num_selectors_with_args)
8573 return nullptr; // some debug information is corrupt. We are not going to
8574 // deal with it.
8575
8576 clang::ObjCMethodDecl *objc_method_decl = clang::ObjCMethodDecl::Create(
8577 *ast,
8578 clang::SourceLocation(), // beginLoc,
8579 clang::SourceLocation(), // endLoc,
8580 method_selector, method_function_prototype->getReturnType(),
8581 nullptr, // TypeSourceInfo *ResultTInfo,
8582 ClangASTContext::GetASTContext(ast)->GetDeclContextForType(
8583 ClangUtil::GetQualType(type)),
8584 name[0] == '-', is_variadic, is_synthesized,
8585 true, // is_implicitly_declared; we force this to true because we don't
8586 // have source locations
8587 is_defined, imp_control, false /*has_related_result_type*/);
8588
8589 if (objc_method_decl == nullptr)
8590 return nullptr;
8591
8592 if (num_args > 0) {
8593 llvm::SmallVector<clang::ParmVarDecl *, 12> params;
8594
8595 for (unsigned param_index = 0; param_index < num_args; ++param_index) {
8596 params.push_back(clang::ParmVarDecl::Create(
8597 *ast, objc_method_decl, clang::SourceLocation(),
8598 clang::SourceLocation(),
8599 nullptr, // anonymous
8600 method_function_prototype->getParamType(param_index), nullptr,
8601 clang::SC_Auto, nullptr));
8602 }
8603
8604 objc_method_decl->setMethodParams(
8605 *ast, llvm::ArrayRef<clang::ParmVarDecl *>(params),
8606 llvm::ArrayRef<clang::SourceLocation>());
8607 }
8608
8609 class_interface_decl->addDecl(objc_method_decl);
8610
8611#ifdef LLDB_CONFIGURATION_DEBUG
8612 VerifyDecl(objc_method_decl);
8613#endif
8614
8615 return objc_method_decl;
8616}
8617
8618bool ClangASTContext::GetHasExternalStorage(const CompilerType &type) {
8619 if (ClangUtil::IsClangType(type))
8620 return false;
8621
8622 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
8623
8624 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
8625 switch (type_class) {
8626 case clang::Type::Record: {
8627 clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
8628 if (cxx_record_decl)
8629 return cxx_record_decl->hasExternalLexicalStorage() ||
8630 cxx_record_decl->hasExternalVisibleStorage();
8631 } break;
8632
8633 case clang::Type::Enum: {
8634 clang::EnumDecl *enum_decl =
8635 llvm::cast<clang::EnumType>(qual_type)->getDecl();
8636 if (enum_decl)
8637 return enum_decl->hasExternalLexicalStorage() ||
8638 enum_decl->hasExternalVisibleStorage();
8639 } break;
8640
8641 case clang::Type::ObjCObject:
8642 case clang::Type::ObjCInterface: {
8643 const clang::ObjCObjectType *objc_class_type =
8644 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
8645 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 8645, __PRETTY_FUNCTION__))
;
8646 if (objc_class_type) {
8647 clang::ObjCInterfaceDecl *class_interface_decl =
8648 objc_class_type->getInterface();
8649
8650 if (class_interface_decl)
8651 return class_interface_decl->hasExternalLexicalStorage() ||
8652 class_interface_decl->hasExternalVisibleStorage();
8653 }
8654 } break;
8655
8656 case clang::Type::Typedef:
8657 return GetHasExternalStorage(CompilerType(
8658 type.GetTypeSystem(), llvm::cast<clang::TypedefType>(qual_type)
8659 ->getDecl()
8660 ->getUnderlyingType()
8661 .getAsOpaquePtr()));
8662
8663 case clang::Type::Auto:
8664 return GetHasExternalStorage(CompilerType(
8665 type.GetTypeSystem(), llvm::cast<clang::AutoType>(qual_type)
8666 ->getDeducedType()
8667 .getAsOpaquePtr()));
8668
8669 case clang::Type::Elaborated:
8670 return GetHasExternalStorage(CompilerType(
8671 type.GetTypeSystem(), llvm::cast<clang::ElaboratedType>(qual_type)
8672 ->getNamedType()
8673 .getAsOpaquePtr()));
8674
8675 case clang::Type::Paren:
8676 return GetHasExternalStorage(CompilerType(
8677 type.GetTypeSystem(),
8678 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()));
8679
8680 default:
8681 break;
8682 }
8683 return false;
8684}
8685
8686bool ClangASTContext::SetHasExternalStorage(lldb::opaque_compiler_type_t type,
8687 bool has_extern) {
8688 if (!type)
8689 return false;
8690
8691 clang::QualType qual_type(GetCanonicalQualType(type));
8692
8693 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
8694 switch (type_class) {
8695 case clang::Type::Record: {
8696 clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
8697 if (cxx_record_decl) {
8698 cxx_record_decl->setHasExternalLexicalStorage(has_extern);
8699 cxx_record_decl->setHasExternalVisibleStorage(has_extern);
8700 return true;
8701 }
8702 } break;
8703
8704 case clang::Type::Enum: {
8705 clang::EnumDecl *enum_decl =
8706 llvm::cast<clang::EnumType>(qual_type)->getDecl();
8707 if (enum_decl) {
8708 enum_decl->setHasExternalLexicalStorage(has_extern);
8709 enum_decl->setHasExternalVisibleStorage(has_extern);
8710 return true;
8711 }
8712 } break;
8713
8714 case clang::Type::ObjCObject:
8715 case clang::Type::ObjCInterface: {
8716 const clang::ObjCObjectType *objc_class_type =
8717 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
8718 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 8718, __PRETTY_FUNCTION__))
;
8719 if (objc_class_type) {
8720 clang::ObjCInterfaceDecl *class_interface_decl =
8721 objc_class_type->getInterface();
8722
8723 if (class_interface_decl) {
8724 class_interface_decl->setHasExternalLexicalStorage(has_extern);
8725 class_interface_decl->setHasExternalVisibleStorage(has_extern);
8726 return true;
8727 }
8728 }
8729 } break;
8730
8731 case clang::Type::Typedef:
8732 return SetHasExternalStorage(llvm::cast<clang::TypedefType>(qual_type)
8733 ->getDecl()
8734 ->getUnderlyingType()
8735 .getAsOpaquePtr(),
8736 has_extern);
8737
8738 case clang::Type::Auto:
8739 return SetHasExternalStorage(llvm::cast<clang::AutoType>(qual_type)
8740 ->getDeducedType()
8741 .getAsOpaquePtr(),
8742 has_extern);
8743
8744 case clang::Type::Elaborated:
8745 return SetHasExternalStorage(llvm::cast<clang::ElaboratedType>(qual_type)
8746 ->getNamedType()
8747 .getAsOpaquePtr(),
8748 has_extern);
8749
8750 case clang::Type::Paren:
8751 return SetHasExternalStorage(
8752 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr(),
8753 has_extern);
8754
8755 default:
8756 break;
8757 }
8758 return false;
8759}
8760
8761#pragma mark TagDecl
8762
8763bool ClangASTContext::StartTagDeclarationDefinition(const CompilerType &type) {
8764 clang::QualType qual_type(ClangUtil::GetQualType(type));
8765 if (!qual_type.isNull()) {
8766 const clang::TagType *tag_type = qual_type->getAs<clang::TagType>();
8767 if (tag_type) {
8768 clang::TagDecl *tag_decl = tag_type->getDecl();
8769 if (tag_decl) {
8770 tag_decl->startDefinition();
8771 return true;
8772 }
8773 }
8774
8775 const clang::ObjCObjectType *object_type =
8776 qual_type->getAs<clang::ObjCObjectType>();
8777 if (object_type) {
8778 clang::ObjCInterfaceDecl *interface_decl = object_type->getInterface();
8779 if (interface_decl) {
8780 interface_decl->startDefinition();
8781 return true;
8782 }
8783 }
8784 }
8785 return false;
8786}
8787
8788bool ClangASTContext::CompleteTagDeclarationDefinition(
8789 const CompilerType &type) {
8790 clang::QualType qual_type(ClangUtil::GetQualType(type));
8791 if (!qual_type.isNull()) {
8792 // Make sure we use the same methodology as
8793 // ClangASTContext::StartTagDeclarationDefinition() as to how we start/end
8794 // the definition. Previously we were calling
8795 const clang::TagType *tag_type = qual_type->getAs<clang::TagType>();
8796 if (tag_type) {
8797 clang::TagDecl *tag_decl = tag_type->getDecl();
8798 if (tag_decl) {
8799 clang::CXXRecordDecl *cxx_record_decl =
8800 llvm::dyn_cast_or_null<clang::CXXRecordDecl>(tag_decl);
8801
8802 if (cxx_record_decl) {
8803 if (!cxx_record_decl->isCompleteDefinition())
8804 cxx_record_decl->completeDefinition();
8805 cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true);
8806 cxx_record_decl->setHasExternalLexicalStorage(false);
8807 cxx_record_decl->setHasExternalVisibleStorage(false);
8808 return true;
8809 }
8810 }
8811 }
8812
8813 const clang::EnumType *enutype = qual_type->getAs<clang::EnumType>();
8814
8815 if (enutype) {
8816 clang::EnumDecl *enum_decl = enutype->getDecl();
8817
8818 if (enum_decl) {
8819 if (!enum_decl->isCompleteDefinition()) {
8820 ClangASTContext *lldb_ast =
8821 llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
8822 if (lldb_ast == nullptr)
8823 return false;
8824 clang::ASTContext *ast = lldb_ast->getASTContext();
8825
8826 /// TODO This really needs to be fixed.
8827
8828 QualType integer_type(enum_decl->getIntegerType());
8829 if (!integer_type.isNull()) {
8830 unsigned NumPositiveBits = 1;
8831 unsigned NumNegativeBits = 0;
8832
8833 clang::QualType promotion_qual_type;
8834 // If the enum integer type is less than an integer in bit width,
8835 // then we must promote it to an integer size.
8836 if (ast->getTypeSize(enum_decl->getIntegerType()) <
8837 ast->getTypeSize(ast->IntTy)) {
8838 if (enum_decl->getIntegerType()->isSignedIntegerType())
8839 promotion_qual_type = ast->IntTy;
8840 else
8841 promotion_qual_type = ast->UnsignedIntTy;
8842 } else
8843 promotion_qual_type = enum_decl->getIntegerType();
8844
8845 enum_decl->completeDefinition(enum_decl->getIntegerType(),
8846 promotion_qual_type, NumPositiveBits,
8847 NumNegativeBits);
8848 }
8849 }
8850 return true;
8851 }
8852 }
8853 }
8854 return false;
8855}
8856
8857clang::EnumConstantDecl *ClangASTContext::AddEnumerationValueToEnumerationType(
8858 lldb::opaque_compiler_type_t type,
8859 const CompilerType &enumerator_clang_type, const Declaration &decl,
8860 const char *name, int64_t enum_value, uint32_t enum_value_bit_size) {
8861 if (type && enumerator_clang_type.IsValid() && name && name[0]) {
8862 clang::QualType enum_qual_type(GetCanonicalQualType(type));
8863
8864 bool is_signed = false;
8865 enumerator_clang_type.IsIntegerType(is_signed);
8866 const clang::Type *clang_type = enum_qual_type.getTypePtr();
8867 if (clang_type) {
8868 const clang::EnumType *enutype =
8869 llvm::dyn_cast<clang::EnumType>(clang_type);
8870
8871 if (enutype) {
8872 llvm::APSInt enum_llvm_apsint(enum_value_bit_size, is_signed);
8873 enum_llvm_apsint = enum_value;
8874 clang::EnumConstantDecl *enumerator_decl =
8875 clang::EnumConstantDecl::Create(
8876 *getASTContext(), enutype->getDecl(), clang::SourceLocation(),
8877 name ? &getASTContext()->Idents.get(name)
8878 : nullptr, // Identifier
8879 ClangUtil::GetQualType(enumerator_clang_type),
8880 nullptr, enum_llvm_apsint);
8881
8882 if (enumerator_decl) {
8883 enutype->getDecl()->addDecl(enumerator_decl);
8884
8885#ifdef LLDB_CONFIGURATION_DEBUG
8886 VerifyDecl(enumerator_decl);
8887#endif
8888
8889 return enumerator_decl;
8890 }
8891 }
8892 }
8893 }
8894 return nullptr;
8895}
8896
8897CompilerType
8898ClangASTContext::GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) {
8899 clang::QualType enum_qual_type(GetCanonicalQualType(type));
8900 const clang::Type *clang_type = enum_qual_type.getTypePtr();
8901 if (clang_type) {
8902 const clang::EnumType *enutype =
8903 llvm::dyn_cast<clang::EnumType>(clang_type);
8904 if (enutype) {
8905 clang::EnumDecl *enum_decl = enutype->getDecl();
8906 if (enum_decl)
8907 return CompilerType(getASTContext(), enum_decl->getIntegerType());
8908 }
8909 }
8910 return CompilerType();
8911}
8912
8913CompilerType
8914ClangASTContext::CreateMemberPointerType(const CompilerType &type,
8915 const CompilerType &pointee_type) {
8916 if (type && pointee_type.IsValid() &&
8917 type.GetTypeSystem() == pointee_type.GetTypeSystem()) {
8918 ClangASTContext *ast =
8919 llvm::dyn_cast<ClangASTContext>(type.GetTypeSystem());
8920 if (!ast)
8921 return CompilerType();
8922 return CompilerType(ast->getASTContext(),
8923 ast->getASTContext()->getMemberPointerType(
8924 ClangUtil::GetQualType(pointee_type),
8925 ClangUtil::GetQualType(type).getTypePtr()));
8926 }
8927 return CompilerType();
8928}
8929
8930size_t
8931ClangASTContext::ConvertStringToFloatValue(lldb::opaque_compiler_type_t type,
8932 const char *s, uint8_t *dst,
8933 size_t dst_size) {
8934 if (type) {
8935 clang::QualType qual_type(GetCanonicalQualType(type));
8936 uint32_t count = 0;
8937 bool is_complex = false;
8938 if (IsFloatingPointType(type, count, is_complex)) {
8939 // TODO: handle complex and vector types
8940 if (count != 1)
8941 return false;
8942
8943 llvm::StringRef s_sref(s);
8944 llvm::APFloat ap_float(getASTContext()->getFloatTypeSemantics(qual_type),
8945 s_sref);
8946
8947 const uint64_t bit_size = getASTContext()->getTypeSize(qual_type);
8948 const uint64_t byte_size = bit_size / 8;
8949 if (dst_size >= byte_size) {
8950 Scalar scalar = ap_float.bitcastToAPInt().zextOrTrunc(
8951 llvm::NextPowerOf2(byte_size) * 8);
8952 lldb_private::Status get_data_error;
8953 if (scalar.GetAsMemoryData(dst, byte_size,
8954 lldb_private::endian::InlHostByteOrder(),
8955 get_data_error))
8956 return byte_size;
8957 }
8958 }
8959 }
8960 return 0;
8961}
8962
8963//----------------------------------------------------------------------
8964// Dumping types
8965//----------------------------------------------------------------------
8966#define DEPTH_INCREMENT2 2
8967
8968void ClangASTContext::DumpValue(
8969 lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, Stream *s,
8970 lldb::Format format, const DataExtractor &data,
8971 lldb::offset_t data_byte_offset, size_t data_byte_size,
8972 uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset, bool show_types,
8973 bool show_summary, bool verbose, uint32_t depth) {
8974 if (!type)
8975 return;
8976
8977 clang::QualType qual_type(GetQualType(type));
8978 switch (qual_type->getTypeClass()) {
8979 case clang::Type::Record:
8980 if (GetCompleteType(type)) {
8981 const clang::RecordType *record_type =
8982 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
8983 const clang::RecordDecl *record_decl = record_type->getDecl();
8984 assert(record_decl)((record_decl) ? static_cast<void> (0) : __assert_fail (
"record_decl", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 8984, __PRETTY_FUNCTION__))
;
8985 uint32_t field_bit_offset = 0;
8986 uint32_t field_byte_offset = 0;
8987 const clang::ASTRecordLayout &record_layout =
8988 getASTContext()->getASTRecordLayout(record_decl);
8989 uint32_t child_idx = 0;
8990
8991 const clang::CXXRecordDecl *cxx_record_decl =
8992 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
8993 if (cxx_record_decl) {
8994 // We might have base classes to print out first
8995 clang::CXXRecordDecl::base_class_const_iterator base_class,
8996 base_class_end;
8997 for (base_class = cxx_record_decl->bases_begin(),
8998 base_class_end = cxx_record_decl->bases_end();
8999 base_class != base_class_end; ++base_class) {
9000 const clang::CXXRecordDecl *base_class_decl =
9001 llvm::cast<clang::CXXRecordDecl>(
9002 base_class->getType()->getAs<clang::RecordType>()->getDecl());
9003
9004 // Skip empty base classes
9005 if (verbose == false &&
9006 ClangASTContext::RecordHasFields(base_class_decl) == false)
9007 continue;
9008
9009 if (base_class->isVirtual())
9010 field_bit_offset =
9011 record_layout.getVBaseClassOffset(base_class_decl)
9012 .getQuantity() *
9013 8;
9014 else
9015 field_bit_offset = record_layout.getBaseClassOffset(base_class_decl)
9016 .getQuantity() *
9017 8;
9018 field_byte_offset = field_bit_offset / 8;
9019 assert(field_bit_offset % 8 == 0)((field_bit_offset % 8 == 0) ? static_cast<void> (0) : __assert_fail
("field_bit_offset % 8 == 0", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 9019, __PRETTY_FUNCTION__))
;
9020 if (child_idx == 0)
9021 s->PutChar('{');
9022 else
9023 s->PutChar(',');
9024
9025 clang::QualType base_class_qual_type = base_class->getType();
9026 std::string base_class_type_name(base_class_qual_type.getAsString());
9027
9028 // Indent and print the base class type name
9029 s->Format("\n{0}{1}", llvm::fmt_repeat(" ", depth + DEPTH_INCREMENT2),
9030 base_class_type_name);
9031
9032 clang::TypeInfo base_class_type_info =
9033 getASTContext()->getTypeInfo(base_class_qual_type);
9034
9035 // Dump the value of the member
9036 CompilerType base_clang_type(getASTContext(), base_class_qual_type);
9037 base_clang_type.DumpValue(
9038 exe_ctx,
9039 s, // Stream to dump to
9040 base_clang_type
9041 .GetFormat(), // The format with which to display the member
9042 data, // Data buffer containing all bytes for this type
9043 data_byte_offset + field_byte_offset, // Offset into "data" where
9044 // to grab value from
9045 base_class_type_info.Width / 8, // Size of this type in bytes
9046 0, // Bitfield bit size
9047 0, // Bitfield bit offset
9048 show_types, // Boolean indicating if we should show the variable
9049 // types
9050 show_summary, // Boolean indicating if we should show a summary
9051 // for the current type
9052 verbose, // Verbose output?
9053 depth + DEPTH_INCREMENT2); // Scope depth for any types that have
9054 // children
9055
9056 ++child_idx;
9057 }
9058 }
9059 uint32_t field_idx = 0;
9060 clang::RecordDecl::field_iterator field, field_end;
9061 for (field = record_decl->field_begin(),
9062 field_end = record_decl->field_end();
9063 field != field_end; ++field, ++field_idx, ++child_idx) {
9064 // Print the starting squiggly bracket (if this is the first member) or
9065 // comma (for member 2 and beyond) for the struct/union/class member.
9066 if (child_idx == 0)
9067 s->PutChar('{');
9068 else
9069 s->PutChar(',');
9070
9071 // Indent
9072 s->Printf("\n%*s", depth + DEPTH_INCREMENT2, "");
9073
9074 clang::QualType field_type = field->getType();
9075 // Print the member type if requested
9076 // Figure out the type byte size (field_type_info.first) and alignment
9077 // (field_type_info.second) from the AST context.
9078 clang::TypeInfo field_type_info =
9079 getASTContext()->getTypeInfo(field_type);
9080 assert(field_idx < record_layout.getFieldCount())((field_idx < record_layout.getFieldCount()) ? static_cast
<void> (0) : __assert_fail ("field_idx < record_layout.getFieldCount()"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 9080, __PRETTY_FUNCTION__))
;
9081 // Figure out the field offset within the current struct/union/class
9082 // type
9083 field_bit_offset = record_layout.getFieldOffset(field_idx);
9084 field_byte_offset = field_bit_offset / 8;
9085 uint32_t field_bitfield_bit_size = 0;
9086 uint32_t field_bitfield_bit_offset = 0;
9087 if (ClangASTContext::FieldIsBitfield(getASTContext(), *field,
9088 field_bitfield_bit_size))
9089 field_bitfield_bit_offset = field_bit_offset % 8;
9090
9091 if (show_types) {
9092 std::string field_type_name(field_type.getAsString());
9093 if (field_bitfield_bit_size > 0)
9094 s->Printf("(%s:%u) ", field_type_name.c_str(),
9095 field_bitfield_bit_size);
9096 else
9097 s->Printf("(%s) ", field_type_name.c_str());
9098 }
9099 // Print the member name and equal sign
9100 s->Printf("%s = ", field->getNameAsString().c_str());
9101
9102 // Dump the value of the member
9103 CompilerType field_clang_type(getASTContext(), field_type);
9104 field_clang_type.DumpValue(
9105 exe_ctx,
9106 s, // Stream to dump to
9107 field_clang_type
9108 .GetFormat(), // The format with which to display the member
9109 data, // Data buffer containing all bytes for this type
9110 data_byte_offset + field_byte_offset, // Offset into "data" where to
9111 // grab value from
9112 field_type_info.Width / 8, // Size of this type in bytes
9113 field_bitfield_bit_size, // Bitfield bit size
9114 field_bitfield_bit_offset, // Bitfield bit offset
9115 show_types, // Boolean indicating if we should show the variable
9116 // types
9117 show_summary, // Boolean indicating if we should show a summary for
9118 // the current type
9119 verbose, // Verbose output?
9120 depth + DEPTH_INCREMENT2); // Scope depth for any types that have
9121 // children
9122 }
9123
9124 // Indent the trailing squiggly bracket
9125 if (child_idx > 0)
9126 s->Printf("\n%*s}", depth, "");
9127 }
9128 return;
9129
9130 case clang::Type::Enum:
9131 if (GetCompleteType(type)) {
9132 const clang::EnumType *enutype =
9133 llvm::cast<clang::EnumType>(qual_type.getTypePtr());
9134 const clang::EnumDecl *enum_decl = enutype->getDecl();
9135 assert(enum_decl)((enum_decl) ? static_cast<void> (0) : __assert_fail ("enum_decl"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 9135, __PRETTY_FUNCTION__))
;
9136 clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos;
9137 lldb::offset_t offset = data_byte_offset;
9138 const int64_t enum_value = data.GetMaxU64Bitfield(
9139 &offset, data_byte_size, bitfield_bit_size, bitfield_bit_offset);
9140 for (enum_pos = enum_decl->enumerator_begin(),
9141 enum_end_pos = enum_decl->enumerator_end();
9142 enum_pos != enum_end_pos; ++enum_pos) {
9143 if (enum_pos->getInitVal() == enum_value) {
9144 s->Printf("%s", enum_pos->getNameAsString().c_str());
9145 return;
9146 }
9147 }
9148 // If we have gotten here we didn't get find the enumerator in the enum
9149 // decl, so just print the integer.
9150 s->Printf("%" PRIi64"l" "i", enum_value);
9151 }
9152 return;
9153
9154 case clang::Type::ConstantArray: {
9155 const clang::ConstantArrayType *array =
9156 llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr());
9157 bool is_array_of_characters = false;
9158 clang::QualType element_qual_type = array->getElementType();
9159
9160 const clang::Type *canonical_type =
9161 element_qual_type->getCanonicalTypeInternal().getTypePtr();
9162 if (canonical_type)
9163 is_array_of_characters = canonical_type->isCharType();
9164
9165 const uint64_t element_count = array->getSize().getLimitedValue();
9166
9167 clang::TypeInfo field_type_info =
9168 getASTContext()->getTypeInfo(element_qual_type);
9169
9170 uint32_t element_idx = 0;
9171 uint32_t element_offset = 0;
9172 uint64_t element_byte_size = field_type_info.Width / 8;
9173 uint32_t element_stride = element_byte_size;
9174
9175 if (is_array_of_characters) {
9176 s->PutChar('"');
9177 DumpDataExtractor(data, s, data_byte_offset, lldb::eFormatChar,
9178 element_byte_size, element_count, UINT32_MAX(4294967295U),
9179 LLDB_INVALID_ADDRESS(18446744073709551615UL), 0, 0);
9180 s->PutChar('"');
9181 return;
9182 } else {
9183 CompilerType element_clang_type(getASTContext(), element_qual_type);
9184 lldb::Format element_format = element_clang_type.GetFormat();
9185
9186 for (element_idx = 0; element_idx < element_count; ++element_idx) {
9187 // Print the starting squiggly bracket (if this is the first member) or
9188 // comman (for member 2 and beyong) for the struct/union/class member.
9189 if (element_idx == 0)
9190 s->PutChar('{');
9191 else
9192 s->PutChar(',');
9193
9194 // Indent and print the index
9195 s->Printf("\n%*s[%u] ", depth + DEPTH_INCREMENT2, "", element_idx);
9196
9197 // Figure out the field offset within the current struct/union/class
9198 // type
9199 element_offset = element_idx * element_stride;
9200
9201 // Dump the value of the member
9202 element_clang_type.DumpValue(
9203 exe_ctx,
9204 s, // Stream to dump to
9205 element_format, // The format with which to display the element
9206 data, // Data buffer containing all bytes for this type
9207 data_byte_offset +
9208 element_offset, // Offset into "data" where to grab value from
9209 element_byte_size, // Size of this type in bytes
9210 0, // Bitfield bit size
9211 0, // Bitfield bit offset
9212 show_types, // Boolean indicating if we should show the variable
9213 // types
9214 show_summary, // Boolean indicating if we should show a summary for
9215 // the current type
9216 verbose, // Verbose output?
9217 depth + DEPTH_INCREMENT2); // Scope depth for any types that have
9218 // children
9219 }
9220
9221 // Indent the trailing squiggly bracket
9222 if (element_idx > 0)
9223 s->Printf("\n%*s}", depth, "");
9224 }
9225 }
9226 return;
9227
9228 case clang::Type::Typedef: {
9229 clang::QualType typedef_qual_type =
9230 llvm::cast<clang::TypedefType>(qual_type)
9231 ->getDecl()
9232 ->getUnderlyingType();
9233
9234 CompilerType typedef_clang_type(getASTContext(), typedef_qual_type);
9235 lldb::Format typedef_format = typedef_clang_type.GetFormat();
9236 clang::TypeInfo typedef_type_info =
9237 getASTContext()->getTypeInfo(typedef_qual_type);
9238 uint64_t typedef_byte_size = typedef_type_info.Width / 8;
9239
9240 return typedef_clang_type.DumpValue(
9241 exe_ctx,
9242 s, // Stream to dump to
9243 typedef_format, // The format with which to display the element
9244 data, // Data buffer containing all bytes for this type
9245 data_byte_offset, // Offset into "data" where to grab value from
9246 typedef_byte_size, // Size of this type in bytes
9247 bitfield_bit_size, // Bitfield bit size
9248 bitfield_bit_offset, // Bitfield bit offset
9249 show_types, // Boolean indicating if we should show the variable types
9250 show_summary, // Boolean indicating if we should show a summary for the
9251 // current type
9252 verbose, // Verbose output?
9253 depth); // Scope depth for any types that have children
9254 } break;
9255
9256 case clang::Type::Auto: {
9257 clang::QualType elaborated_qual_type =
9258 llvm::cast<clang::AutoType>(qual_type)->getDeducedType();
9259 CompilerType elaborated_clang_type(getASTContext(), elaborated_qual_type);
9260 lldb::Format elaborated_format = elaborated_clang_type.GetFormat();
9261 clang::TypeInfo elaborated_type_info =
9262 getASTContext()->getTypeInfo(elaborated_qual_type);
9263 uint64_t elaborated_byte_size = elaborated_type_info.Width / 8;
9264
9265 return elaborated_clang_type.DumpValue(
9266 exe_ctx,
9267 s, // Stream to dump to
9268 elaborated_format, // The format with which to display the element
9269 data, // Data buffer containing all bytes for this type
9270 data_byte_offset, // Offset into "data" where to grab value from
9271 elaborated_byte_size, // Size of this type in bytes
9272 bitfield_bit_size, // Bitfield bit size
9273 bitfield_bit_offset, // Bitfield bit offset
9274 show_types, // Boolean indicating if we should show the variable types
9275 show_summary, // Boolean indicating if we should show a summary for the
9276 // current type
9277 verbose, // Verbose output?
9278 depth); // Scope depth for any types that have children
9279 } break;
9280
9281 case clang::Type::Elaborated: {
9282 clang::QualType elaborated_qual_type =
9283 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType();
9284 CompilerType elaborated_clang_type(getASTContext(), elaborated_qual_type);
9285 lldb::Format elaborated_format = elaborated_clang_type.GetFormat();
9286 clang::TypeInfo elaborated_type_info =
9287 getASTContext()->getTypeInfo(elaborated_qual_type);
9288 uint64_t elaborated_byte_size = elaborated_type_info.Width / 8;
9289
9290 return elaborated_clang_type.DumpValue(
9291 exe_ctx,
9292 s, // Stream to dump to
9293 elaborated_format, // The format with which to display the element
9294 data, // Data buffer containing all bytes for this type
9295 data_byte_offset, // Offset into "data" where to grab value from
9296 elaborated_byte_size, // Size of this type in bytes
9297 bitfield_bit_size, // Bitfield bit size
9298 bitfield_bit_offset, // Bitfield bit offset
9299 show_types, // Boolean indicating if we should show the variable types
9300 show_summary, // Boolean indicating if we should show a summary for the
9301 // current type
9302 verbose, // Verbose output?
9303 depth); // Scope depth for any types that have children
9304 } break;
9305
9306 case clang::Type::Paren: {
9307 clang::QualType desugar_qual_type =
9308 llvm::cast<clang::ParenType>(qual_type)->desugar();
9309 CompilerType desugar_clang_type(getASTContext(), desugar_qual_type);
9310
9311 lldb::Format desugar_format = desugar_clang_type.GetFormat();
9312 clang::TypeInfo desugar_type_info =
9313 getASTContext()->getTypeInfo(desugar_qual_type);
9314 uint64_t desugar_byte_size = desugar_type_info.Width / 8;
9315
9316 return desugar_clang_type.DumpValue(
9317 exe_ctx,
9318 s, // Stream to dump to
9319 desugar_format, // The format with which to display the element
9320 data, // Data buffer containing all bytes for this type
9321 data_byte_offset, // Offset into "data" where to grab value from
9322 desugar_byte_size, // Size of this type in bytes
9323 bitfield_bit_size, // Bitfield bit size
9324 bitfield_bit_offset, // Bitfield bit offset
9325 show_types, // Boolean indicating if we should show the variable types
9326 show_summary, // Boolean indicating if we should show a summary for the
9327 // current type
9328 verbose, // Verbose output?
9329 depth); // Scope depth for any types that have children
9330 } break;
9331
9332 default:
9333 // We are down to a scalar type that we just need to display.
9334 DumpDataExtractor(data, s, data_byte_offset, format, data_byte_size, 1,
9335 UINT32_MAX(4294967295U), LLDB_INVALID_ADDRESS(18446744073709551615UL), bitfield_bit_size,
9336 bitfield_bit_offset);
9337
9338 if (show_summary)
9339 DumpSummary(type, exe_ctx, s, data, data_byte_offset, data_byte_size);
9340 break;
9341 }
9342}
9343
9344bool ClangASTContext::DumpTypeValue(
9345 lldb::opaque_compiler_type_t type, Stream *s, lldb::Format format,
9346 const DataExtractor &data, lldb::offset_t byte_offset, size_t byte_size,
9347 uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset,
9348 ExecutionContextScope *exe_scope) {
9349 if (!type)
9350 return false;
9351 if (IsAggregateType(type)) {
9352 return false;
9353 } else {
9354 clang::QualType qual_type(GetQualType(type));
9355
9356 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
9357 switch (type_class) {
9358 case clang::Type::Typedef: {
9359 clang::QualType typedef_qual_type =
9360 llvm::cast<clang::TypedefType>(qual_type)
9361 ->getDecl()
9362 ->getUnderlyingType();
9363 CompilerType typedef_clang_type(getASTContext(), typedef_qual_type);
9364 if (format == eFormatDefault)
9365 format = typedef_clang_type.GetFormat();
9366 clang::TypeInfo typedef_type_info =
9367 getASTContext()->getTypeInfo(typedef_qual_type);
9368 uint64_t typedef_byte_size = typedef_type_info.Width / 8;
9369
9370 return typedef_clang_type.DumpTypeValue(
9371 s,
9372 format, // The format with which to display the element
9373 data, // Data buffer containing all bytes for this type
9374 byte_offset, // Offset into "data" where to grab value from
9375 typedef_byte_size, // Size of this type in bytes
9376 bitfield_bit_size, // Size in bits of a bitfield value, if zero don't
9377 // treat as a bitfield
9378 bitfield_bit_offset, // Offset in bits of a bitfield value if
9379 // bitfield_bit_size != 0
9380 exe_scope);
9381 } break;
9382
9383 case clang::Type::Enum:
9384 // If our format is enum or default, show the enumeration value as its
9385 // enumeration string value, else just display it as requested.
9386 if ((format == eFormatEnum || format == eFormatDefault) &&
9387 GetCompleteType(type)) {
9388 const clang::EnumType *enutype =
9389 llvm::cast<clang::EnumType>(qual_type.getTypePtr());
9390 const clang::EnumDecl *enum_decl = enutype->getDecl();
9391 assert(enum_decl)((enum_decl) ? static_cast<void> (0) : __assert_fail ("enum_decl"
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 9391, __PRETTY_FUNCTION__))
;
9392 clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos;
9393 const bool is_signed = qual_type->isSignedIntegerOrEnumerationType();
9394 lldb::offset_t offset = byte_offset;
9395 if (is_signed) {
9396 const int64_t enum_svalue = data.GetMaxS64Bitfield(
9397 &offset, byte_size, bitfield_bit_size, bitfield_bit_offset);
9398 for (enum_pos = enum_decl->enumerator_begin(),
9399 enum_end_pos = enum_decl->enumerator_end();
9400 enum_pos != enum_end_pos; ++enum_pos) {
9401 if (enum_pos->getInitVal().getSExtValue() == enum_svalue) {
9402 s->PutCString(enum_pos->getNameAsString());
9403 return true;
9404 }
9405 }
9406 // If we have gotten here we didn't get find the enumerator in the
9407 // enum decl, so just print the integer.
9408 s->Printf("%" PRIi64"l" "i", enum_svalue);
9409 } else {
9410 const uint64_t enum_uvalue = data.GetMaxU64Bitfield(
9411 &offset, byte_size, bitfield_bit_size, bitfield_bit_offset);
9412 for (enum_pos = enum_decl->enumerator_begin(),
9413 enum_end_pos = enum_decl->enumerator_end();
9414 enum_pos != enum_end_pos; ++enum_pos) {
9415 if (enum_pos->getInitVal().getZExtValue() == enum_uvalue) {
9416 s->PutCString(enum_pos->getNameAsString());
9417 return true;
9418 }
9419 }
9420 // If we have gotten here we didn't get find the enumerator in the
9421 // enum decl, so just print the integer.
9422 s->Printf("%" PRIu64"l" "u", enum_uvalue);
9423 }
9424 return true;
9425 }
9426 // format was not enum, just fall through and dump the value as
9427 // requested....
9428 LLVM_FALLTHROUGH[[clang::fallthrough]];
9429
9430 default:
9431 // We are down to a scalar type that we just need to display.
9432 {
9433 uint32_t item_count = 1;
9434 // A few formats, we might need to modify our size and count for
9435 // depending
9436 // on how we are trying to display the value...
9437 switch (format) {
9438 default:
9439 case eFormatBoolean:
9440 case eFormatBinary:
9441 case eFormatComplex:
9442 case eFormatCString: // NULL terminated C strings
9443 case eFormatDecimal:
9444 case eFormatEnum:
9445 case eFormatHex:
9446 case eFormatHexUppercase:
9447 case eFormatFloat:
9448 case eFormatOctal:
9449 case eFormatOSType:
9450 case eFormatUnsigned:
9451 case eFormatPointer:
9452 case eFormatVectorOfChar:
9453 case eFormatVectorOfSInt8:
9454 case eFormatVectorOfUInt8:
9455 case eFormatVectorOfSInt16:
9456 case eFormatVectorOfUInt16:
9457 case eFormatVectorOfSInt32:
9458 case eFormatVectorOfUInt32:
9459 case eFormatVectorOfSInt64:
9460 case eFormatVectorOfUInt64:
9461 case eFormatVectorOfFloat32:
9462 case eFormatVectorOfFloat64:
9463 case eFormatVectorOfUInt128:
9464 break;
9465
9466 case eFormatChar:
9467 case eFormatCharPrintable:
9468 case eFormatCharArray:
9469 case eFormatBytes:
9470 case eFormatBytesWithASCII:
9471 item_count = byte_size;
9472 byte_size = 1;
9473 break;
9474
9475 case eFormatUnicode16:
9476 item_count = byte_size / 2;
9477 byte_size = 2;
9478 break;
9479
9480 case eFormatUnicode32:
9481 item_count = byte_size / 4;
9482 byte_size = 4;
9483 break;
9484 }
9485 return DumpDataExtractor(data, s, byte_offset, format, byte_size,
9486 item_count, UINT32_MAX(4294967295U), LLDB_INVALID_ADDRESS(18446744073709551615UL),
9487 bitfield_bit_size, bitfield_bit_offset,
9488 exe_scope);
9489 }
9490 break;
9491 }
9492 }
9493 return 0;
9494}
9495
9496void ClangASTContext::DumpSummary(lldb::opaque_compiler_type_t type,
9497 ExecutionContext *exe_ctx, Stream *s,
9498 const lldb_private::DataExtractor &data,
9499 lldb::offset_t data_byte_offset,
9500 size_t data_byte_size) {
9501 uint32_t length = 0;
9502 if (IsCStringType(type, length)) {
9503 if (exe_ctx) {
9504 Process *process = exe_ctx->GetProcessPtr();
9505 if (process) {
9506 lldb::offset_t offset = data_byte_offset;
9507 lldb::addr_t pointer_address = data.GetMaxU64(&offset, data_byte_size);
9508 std::vector<uint8_t> buf;
9509 if (length > 0)
9510 buf.resize(length);
9511 else
9512 buf.resize(256);
9513
9514 DataExtractor cstr_data(&buf.front(), buf.size(),
9515 process->GetByteOrder(), 4);
9516 buf.back() = '\0';
9517 size_t bytes_read;
9518 size_t total_cstr_len = 0;
9519 Status error;
9520 while ((bytes_read = process->ReadMemory(pointer_address, &buf.front(),
9521 buf.size(), error)) > 0) {
9522 const size_t len = strlen((const char *)&buf.front());
9523 if (len == 0)
9524 break;
9525 if (total_cstr_len == 0)
9526 s->PutCString(" \"");
9527 DumpDataExtractor(cstr_data, s, 0, lldb::eFormatChar, 1, len,
9528 UINT32_MAX(4294967295U), LLDB_INVALID_ADDRESS(18446744073709551615UL), 0, 0);
9529 total_cstr_len += len;
9530 if (len < buf.size())
9531 break;
9532 pointer_address += total_cstr_len;
9533 }
9534 if (total_cstr_len > 0)
9535 s->PutChar('"');
9536 }
9537 }
9538 }
9539}
9540
9541void ClangASTContext::DumpTypeDescription(lldb::opaque_compiler_type_t type) {
9542 StreamFile s(stdoutstdout, false);
9543 DumpTypeDescription(type, &s);
9544 ClangASTMetadata *metadata =
9545 ClangASTContext::GetMetadata(getASTContext(), type);
9546 if (metadata) {
9547 metadata->Dump(&s);
9548 }
9549}
9550
9551void ClangASTContext::DumpTypeDescription(lldb::opaque_compiler_type_t type,
9552 Stream *s) {
9553 if (type) {
9554 clang::QualType qual_type(GetQualType(type));
9555
9556 llvm::SmallVector<char, 1024> buf;
9557 llvm::raw_svector_ostream llvm_ostrm(buf);
9558
9559 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
9560 switch (type_class) {
9561 case clang::Type::ObjCObject:
9562 case clang::Type::ObjCInterface: {
9563 GetCompleteType(type);
9564
9565 const clang::ObjCObjectType *objc_class_type =
9566 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
9567 assert(objc_class_type)((objc_class_type) ? static_cast<void> (0) : __assert_fail
("objc_class_type", "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 9567, __PRETTY_FUNCTION__))
;
9568 if (objc_class_type) {
9569 clang::ObjCInterfaceDecl *class_interface_decl =
9570 objc_class_type->getInterface();
9571 if (class_interface_decl) {
9572 clang::PrintingPolicy policy = getASTContext()->getPrintingPolicy();
9573 class_interface_decl->print(llvm_ostrm, policy, s->GetIndentLevel());
9574 }
9575 }
9576 } break;
9577
9578 case clang::Type::Typedef: {
9579 const clang::TypedefType *typedef_type =
9580 qual_type->getAs<clang::TypedefType>();
9581 if (typedef_type) {
9582 const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl();
9583 std::string clang_typedef_name(
9584 typedef_decl->getQualifiedNameAsString());
9585 if (!clang_typedef_name.empty()) {
9586 s->PutCString("typedef ");
9587 s->PutCString(clang_typedef_name);
9588 }
9589 }
9590 } break;
9591
9592 case clang::Type::Auto:
9593 CompilerType(getASTContext(),
9594 llvm::cast<clang::AutoType>(qual_type)->getDeducedType())
9595 .DumpTypeDescription(s);
9596 return;
9597
9598 case clang::Type::Elaborated:
9599 CompilerType(getASTContext(),
9600 llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType())
9601 .DumpTypeDescription(s);
9602 return;
9603
9604 case clang::Type::Paren:
9605 CompilerType(getASTContext(),
9606 llvm::cast<clang::ParenType>(qual_type)->desugar())
9607 .DumpTypeDescription(s);
9608 return;
9609
9610 case clang::Type::Record: {
9611 GetCompleteType(type);
9612
9613 const clang::RecordType *record_type =
9614 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
9615 const clang::RecordDecl *record_decl = record_type->getDecl();
9616 const clang::CXXRecordDecl *cxx_record_decl =
9617 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
9618
9619 if (cxx_record_decl)
9620 cxx_record_decl->print(llvm_ostrm, getASTContext()->getPrintingPolicy(),
9621 s->GetIndentLevel());
9622 else
9623 record_decl->print(llvm_ostrm, getASTContext()->getPrintingPolicy(),
9624 s->GetIndentLevel());
9625 } break;
9626
9627 default: {
9628 const clang::TagType *tag_type =
9629 llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr());
9630 if (tag_type) {
9631 clang::TagDecl *tag_decl = tag_type->getDecl();
9632 if (tag_decl)
9633 tag_decl->print(llvm_ostrm, 0);
9634 } else {
9635 std::string clang_type_name(qual_type.getAsString());
9636 if (!clang_type_name.empty())
9637 s->PutCString(clang_type_name);
9638 }
9639 }
9640 }
9641
9642 if (buf.size() > 0) {
9643 s->Write(buf.data(), buf.size());
9644 }
9645 }
9646}
9647
9648void ClangASTContext::DumpTypeName(const CompilerType &type) {
9649 if (ClangUtil::IsClangType(type)) {
9650 clang::QualType qual_type(
9651 ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type)));
9652
9653 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
9654 switch (type_class) {
9655 case clang::Type::Record: {
9656 const clang::CXXRecordDecl *cxx_record_decl =
9657 qual_type->getAsCXXRecordDecl();
9658 if (cxx_record_decl)
9659 printf("class %s", cxx_record_decl->getName().str().c_str());
9660 } break;
9661
9662 case clang::Type::Enum: {
9663 clang::EnumDecl *enum_decl =
9664 llvm::cast<clang::EnumType>(qual_type)->getDecl();
9665 if (enum_decl) {
9666 printf("enum %s", enum_decl->getName().str().c_str());
9667 }
9668 } break;
9669
9670 case clang::Type::ObjCObject:
9671 case clang::Type::ObjCInterface: {
9672 const clang::ObjCObjectType *objc_class_type =
9673 llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
9674 if (objc_class_type) {
9675 clang::ObjCInterfaceDecl *class_interface_decl =
9676 objc_class_type->getInterface();
9677 // We currently can't complete objective C types through the newly
9678 // added ASTContext because it only supports TagDecl objects right
9679 // now...
9680 if (class_interface_decl)
9681 printf("@class %s", class_interface_decl->getName().str().c_str());
9682 }
9683 } break;
9684
9685 case clang::Type::Typedef:
9686 printf("typedef %s", llvm::cast<clang::TypedefType>(qual_type)
9687 ->getDecl()
9688 ->getName()
9689 .str()
9690 .c_str());
9691 break;
9692
9693 case clang::Type::Auto:
9694 printf("auto ");
9695 return DumpTypeName(CompilerType(type.GetTypeSystem(),
9696 llvm::cast<clang::AutoType>(qual_type)
9697 ->getDeducedType()
9698 .getAsOpaquePtr()));
9699
9700 case clang::Type::Elaborated:
9701 printf("elaborated ");
9702 return DumpTypeName(CompilerType(
9703 type.GetTypeSystem(), llvm::cast<clang::ElaboratedType>(qual_type)
9704 ->getNamedType()
9705 .getAsOpaquePtr()));
9706
9707 case clang::Type::Paren:
9708 printf("paren ");
9709 return DumpTypeName(CompilerType(
9710 type.GetTypeSystem(),
9711 llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr()));
9712
9713 default:
9714 printf("ClangASTContext::DumpTypeName() type_class = %u", type_class);
9715 break;
9716 }
9717 }
9718}
9719
9720clang::ClassTemplateDecl *ClangASTContext::ParseClassTemplateDecl(
9721 clang::DeclContext *decl_ctx, lldb::AccessType access_type,
9722 const char *parent_name, int tag_decl_kind,
9723 const ClangASTContext::TemplateParameterInfos &template_param_infos) {
9724 if (template_param_infos.IsValid()) {
9725 std::string template_basename(parent_name);
9726 template_basename.erase(template_basename.find('<'));
9727
9728 return CreateClassTemplateDecl(decl_ctx, access_type,
9729 template_basename.c_str(), tag_decl_kind,
9730 template_param_infos);
9731 }
9732 return NULL__null;
9733}
9734
9735void ClangASTContext::CompleteTagDecl(void *baton, clang::TagDecl *decl) {
9736 ClangASTContext *ast = (ClangASTContext *)baton;
9737 SymbolFile *sym_file = ast->GetSymbolFile();
9738 if (sym_file) {
9739 CompilerType clang_type = GetTypeForDecl(decl);
9740 if (clang_type)
9741 sym_file->CompleteType(clang_type);
9742 }
9743}
9744
9745void ClangASTContext::CompleteObjCInterfaceDecl(
9746 void *baton, clang::ObjCInterfaceDecl *decl) {
9747 ClangASTContext *ast = (ClangASTContext *)baton;
9748 SymbolFile *sym_file = ast->GetSymbolFile();
9749 if (sym_file) {
9750 CompilerType clang_type = GetTypeForDecl(decl);
9751 if (clang_type)
9752 sym_file->CompleteType(clang_type);
9753 }
9754}
9755
9756DWARFASTParser *ClangASTContext::GetDWARFParser() {
9757 if (!m_dwarf_ast_parser_ap)
9758 m_dwarf_ast_parser_ap.reset(new DWARFASTParserClang(*this));
9759 return m_dwarf_ast_parser_ap.get();
9760}
9761
9762PDBASTParser *ClangASTContext::GetPDBParser() {
9763 if (!m_pdb_ast_parser_ap)
9764 m_pdb_ast_parser_ap.reset(new PDBASTParser(*this));
9765 return m_pdb_ast_parser_ap.get();
9766}
9767
9768bool ClangASTContext::LayoutRecordType(
9769 void *baton, const clang::RecordDecl *record_decl, uint64_t &bit_size,
9770 uint64_t &alignment,
9771 llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets,
9772 llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>
9773 &base_offsets,
9774 llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits>
9775 &vbase_offsets) {
9776 ClangASTContext *ast = (ClangASTContext *)baton;
9777 lldb_private::ClangASTImporter *importer = nullptr;
9778 if (ast->m_dwarf_ast_parser_ap)
9779 importer = &ast->m_dwarf_ast_parser_ap->GetClangASTImporter();
9780 if (!importer && ast->m_pdb_ast_parser_ap)
9781 importer = &ast->m_pdb_ast_parser_ap->GetClangASTImporter();
9782 if (!importer)
9783 return false;
9784
9785 return importer->LayoutRecordType(record_decl, bit_size, alignment,
9786 field_offsets, base_offsets, vbase_offsets);
9787}
9788
9789//----------------------------------------------------------------------
9790// CompilerDecl override functions
9791//----------------------------------------------------------------------
9792
9793ConstString ClangASTContext::DeclGetName(void *opaque_decl) {
9794 if (opaque_decl) {
9795 clang::NamedDecl *nd =
9796 llvm::dyn_cast<NamedDecl>((clang::Decl *)opaque_decl);
9797 if (nd != nullptr)
9798 return ConstString(nd->getDeclName().getAsString());
9799 }
9800 return ConstString();
9801}
9802
9803ConstString ClangASTContext::DeclGetMangledName(void *opaque_decl) {
9804 if (opaque_decl) {
9805 clang::NamedDecl *nd =
9806 llvm::dyn_cast<clang::NamedDecl>((clang::Decl *)opaque_decl);
9807 if (nd != nullptr && !llvm::isa<clang::ObjCMethodDecl>(nd)) {
9808 clang::MangleContext *mc = getMangleContext();
9809 if (mc && mc->shouldMangleCXXName(nd)) {
9810 llvm::SmallVector<char, 1024> buf;
9811 llvm::raw_svector_ostream llvm_ostrm(buf);
9812 if (llvm::isa<clang::CXXConstructorDecl>(nd)) {
9813 mc->mangleCXXCtor(llvm::dyn_cast<clang::CXXConstructorDecl>(nd),
9814 Ctor_Complete, llvm_ostrm);
9815 } else if (llvm::isa<clang::CXXDestructorDecl>(nd)) {
9816 mc->mangleCXXDtor(llvm::dyn_cast<clang::CXXDestructorDecl>(nd),
9817 Dtor_Complete, llvm_ostrm);
9818 } else {
9819 mc->mangleName(nd, llvm_ostrm);
9820 }
9821 if (buf.size() > 0)
9822 return ConstString(buf.data(), buf.size());
9823 }
9824 }
9825 }
9826 return ConstString();
9827}
9828
9829CompilerDeclContext ClangASTContext::DeclGetDeclContext(void *opaque_decl) {
9830 if (opaque_decl)
9831 return CompilerDeclContext(this,
9832 ((clang::Decl *)opaque_decl)->getDeclContext());
9833 else
9834 return CompilerDeclContext();
9835}
9836
9837CompilerType ClangASTContext::DeclGetFunctionReturnType(void *opaque_decl) {
9838 if (clang::FunctionDecl *func_decl =
9839 llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl))
9840 return CompilerType(this, func_decl->getReturnType().getAsOpaquePtr());
9841 if (clang::ObjCMethodDecl *objc_method =
9842 llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl))
9843 return CompilerType(this, objc_method->getReturnType().getAsOpaquePtr());
9844 else
9845 return CompilerType();
9846}
9847
9848size_t ClangASTContext::DeclGetFunctionNumArguments(void *opaque_decl) {
9849 if (clang::FunctionDecl *func_decl =
9850 llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl))
9851 return func_decl->param_size();
9852 if (clang::ObjCMethodDecl *objc_method =
9853 llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl))
9854 return objc_method->param_size();
9855 else
9856 return 0;
9857}
9858
9859CompilerType ClangASTContext::DeclGetFunctionArgumentType(void *opaque_decl,
9860 size_t idx) {
9861 if (clang::FunctionDecl *func_decl =
9862 llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) {
9863 if (idx < func_decl->param_size()) {
9864 ParmVarDecl *var_decl = func_decl->getParamDecl(idx);
9865 if (var_decl)
9866 return CompilerType(this, var_decl->getOriginalType().getAsOpaquePtr());
9867 }
9868 } else if (clang::ObjCMethodDecl *objc_method =
9869 llvm::dyn_cast<clang::ObjCMethodDecl>(
9870 (clang::Decl *)opaque_decl)) {
9871 if (idx < objc_method->param_size())
9872 return CompilerType(
9873 this,
9874 objc_method->parameters()[idx]->getOriginalType().getAsOpaquePtr());
9875 }
9876 return CompilerType();
9877}
9878
9879//----------------------------------------------------------------------
9880// CompilerDeclContext functions
9881//----------------------------------------------------------------------
9882
9883std::vector<CompilerDecl> ClangASTContext::DeclContextFindDeclByName(
9884 void *opaque_decl_ctx, ConstString name, const bool ignore_using_decls) {
9885 std::vector<CompilerDecl> found_decls;
9886 if (opaque_decl_ctx) {
9887 DeclContext *root_decl_ctx = (DeclContext *)opaque_decl_ctx;
9888 std::set<DeclContext *> searched;
9889 std::multimap<DeclContext *, DeclContext *> search_queue;
9890 SymbolFile *symbol_file = GetSymbolFile();
9891
9892 for (clang::DeclContext *decl_context = root_decl_ctx;
9893 decl_context != nullptr && found_decls.empty();
9894 decl_context = decl_context->getParent()) {
9895 search_queue.insert(std::make_pair(decl_context, decl_context));
9896
9897 for (auto it = search_queue.find(decl_context); it != search_queue.end();
9898 it++) {
9899 if (!searched.insert(it->second).second)
9900 continue;
9901 symbol_file->ParseDeclsForContext(
9902 CompilerDeclContext(this, it->second));
9903
9904 for (clang::Decl *child : it->second->decls()) {
9905 if (clang::UsingDirectiveDecl *ud =
9906 llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) {
9907 if (ignore_using_decls)
9908 continue;
9909 clang::DeclContext *from = ud->getCommonAncestor();
9910 if (searched.find(ud->getNominatedNamespace()) == searched.end())
9911 search_queue.insert(
9912 std::make_pair(from, ud->getNominatedNamespace()));
9913 } else if (clang::UsingDecl *ud =
9914 llvm::dyn_cast<clang::UsingDecl>(child)) {
9915 if (ignore_using_decls)
9916 continue;
9917 for (clang::UsingShadowDecl *usd : ud->shadows()) {
9918 clang::Decl *target = usd->getTargetDecl();
9919 if (clang::NamedDecl *nd =
9920 llvm::dyn_cast<clang::NamedDecl>(target)) {
9921 IdentifierInfo *ii = nd->getIdentifier();
9922 if (ii != nullptr &&
9923 ii->getName().equals(name.AsCString(nullptr)))
9924 found_decls.push_back(CompilerDecl(this, nd));
9925 }
9926 }
9927 } else if (clang::NamedDecl *nd =
9928 llvm::dyn_cast<clang::NamedDecl>(child)) {
9929 IdentifierInfo *ii = nd->getIdentifier();
9930 if (ii != nullptr && ii->getName().equals(name.AsCString(nullptr)))
9931 found_decls.push_back(CompilerDecl(this, nd));
9932 }
9933 }
9934 }
9935 }
9936 }
9937 return found_decls;
9938}
9939
9940// Look for child_decl_ctx's lookup scope in frame_decl_ctx and its parents,
9941// and return the number of levels it took to find it, or
9942// LLDB_INVALID_DECL_LEVEL if not found. If the decl was imported via a using
9943// declaration, its name and/or type, if set, will be used to check that the
9944// decl found in the scope is a match.
9945//
9946// The optional name is required by languages (like C++) to handle using
9947// declarations like:
9948//
9949// void poo();
9950// namespace ns {
9951// void foo();
9952// void goo();
9953// }
9954// void bar() {
9955// using ns::foo;
9956// // CountDeclLevels returns 0 for 'foo', 1 for 'poo', and
9957// // LLDB_INVALID_DECL_LEVEL for 'goo'.
9958// }
9959//
9960// The optional type is useful in the case that there's a specific overload
9961// that we're looking for that might otherwise be shadowed, like:
9962//
9963// void foo(int);
9964// namespace ns {
9965// void foo();
9966// }
9967// void bar() {
9968// using ns::foo;
9969// // CountDeclLevels returns 0 for { 'foo', void() },
9970// // 1 for { 'foo', void(int) }, and
9971// // LLDB_INVALID_DECL_LEVEL for { 'foo', void(int, int) }.
9972// }
9973//
9974// NOTE: Because file statics are at the TranslationUnit along with globals, a
9975// function at file scope will return the same level as a function at global
9976// scope. Ideally we'd like to treat the file scope as an additional scope just
9977// below the global scope. More work needs to be done to recognise that, if
9978// the decl we're trying to look up is static, we should compare its source
9979// file with that of the current scope and return a lower number for it.
9980uint32_t ClangASTContext::CountDeclLevels(clang::DeclContext *frame_decl_ctx,
9981 clang::DeclContext *child_decl_ctx,
9982 ConstString *child_name,
9983 CompilerType *child_type) {
9984 if (frame_decl_ctx) {
9985 std::set<DeclContext *> searched;
9986 std::multimap<DeclContext *, DeclContext *> search_queue;
9987 SymbolFile *symbol_file = GetSymbolFile();
9988
9989 // Get the lookup scope for the decl we're trying to find.
9990 clang::DeclContext *parent_decl_ctx = child_decl_ctx->getParent();
9991
9992 // Look for it in our scope's decl context and its parents.
9993 uint32_t level = 0;
9994 for (clang::DeclContext *decl_ctx = frame_decl_ctx; decl_ctx != nullptr;
9995 decl_ctx = decl_ctx->getParent()) {
9996 if (!decl_ctx->isLookupContext())
9997 continue;
9998 if (decl_ctx == parent_decl_ctx)
9999 // Found it!
10000 return level;
10001 search_queue.insert(std::make_pair(decl_ctx, decl_ctx));
10002 for (auto it = search_queue.find(decl_ctx); it != search_queue.end();
10003 it++) {
10004 if (searched.find(it->second) != searched.end())
10005 continue;
10006
10007 // Currently DWARF has one shared translation unit for all Decls at top
10008 // level, so this would erroneously find using statements anywhere. So
10009 // don't look at the top-level translation unit.
10010 // TODO fix this and add a testcase that depends on it.
10011
10012 if (llvm::isa<clang::TranslationUnitDecl>(it->second))
10013 continue;
10014
10015 searched.insert(it->second);
10016 symbol_file->ParseDeclsForContext(
10017 CompilerDeclContext(this, it->second));
10018
10019 for (clang::Decl *child : it->second->decls()) {
10020 if (clang::UsingDirectiveDecl *ud =
10021 llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) {
10022 clang::DeclContext *ns = ud->getNominatedNamespace();
10023 if (ns == parent_decl_ctx)
10024 // Found it!
10025 return level;
10026 clang::DeclContext *from = ud->getCommonAncestor();
10027 if (searched.find(ns) == searched.end())
10028 search_queue.insert(std::make_pair(from, ns));
10029 } else if (child_name) {
10030 if (clang::UsingDecl *ud =
10031 llvm::dyn_cast<clang::UsingDecl>(child)) {
10032 for (clang::UsingShadowDecl *usd : ud->shadows()) {
10033 clang::Decl *target = usd->getTargetDecl();
10034 clang::NamedDecl *nd = llvm::dyn_cast<clang::NamedDecl>(target);
10035 if (!nd)
10036 continue;
10037 // Check names.
10038 IdentifierInfo *ii = nd->getIdentifier();
10039 if (ii == nullptr ||
10040 !ii->getName().equals(child_name->AsCString(nullptr)))
10041 continue;
10042 // Check types, if one was provided.
10043 if (child_type) {
10044 CompilerType clang_type = ClangASTContext::GetTypeForDecl(nd);
10045 if (!AreTypesSame(clang_type, *child_type,
10046 /*ignore_qualifiers=*/true))
10047 continue;
10048 }
10049 // Found it!
10050 return level;
10051 }
10052 }
10053 }
10054 }
10055 }
10056 ++level;
10057 }
10058 }
10059 return LLDB_INVALID_DECL_LEVEL(4294967295U);
10060}
10061
10062bool ClangASTContext::DeclContextIsStructUnionOrClass(void *opaque_decl_ctx) {
10063 if (opaque_decl_ctx)
10064 return ((clang::DeclContext *)opaque_decl_ctx)->isRecord();
10065 else
10066 return false;
10067}
10068
10069ConstString ClangASTContext::DeclContextGetName(void *opaque_decl_ctx) {
10070 if (opaque_decl_ctx) {
10071 clang::NamedDecl *named_decl =
10072 llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx);
10073 if (named_decl)
10074 return ConstString(named_decl->getName());
10075 }
10076 return ConstString();
10077}
10078
10079ConstString
10080ClangASTContext::DeclContextGetScopeQualifiedName(void *opaque_decl_ctx) {
10081 if (opaque_decl_ctx) {
10082 clang::NamedDecl *named_decl =
10083 llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx);
10084 if (named_decl)
10085 return ConstString(
10086 llvm::StringRef(named_decl->getQualifiedNameAsString()));
10087 }
10088 return ConstString();
10089}
10090
10091bool ClangASTContext::DeclContextIsClassMethod(
10092 void *opaque_decl_ctx, lldb::LanguageType *language_ptr,
10093 bool *is_instance_method_ptr, ConstString *language_object_name_ptr) {
10094 if (opaque_decl_ctx) {
10095 clang::DeclContext *decl_ctx = (clang::DeclContext *)opaque_decl_ctx;
10096 if (ObjCMethodDecl *objc_method =
10097 llvm::dyn_cast<clang::ObjCMethodDecl>(decl_ctx)) {
10098 if (is_instance_method_ptr)
10099 *is_instance_method_ptr = objc_method->isInstanceMethod();
10100 if (language_ptr)
10101 *language_ptr = eLanguageTypeObjC;
10102 if (language_object_name_ptr)
10103 language_object_name_ptr->SetCString("self");
10104 return true;
10105 } else if (CXXMethodDecl *cxx_method =
10106 llvm::dyn_cast<clang::CXXMethodDecl>(decl_ctx)) {
10107 if (is_instance_method_ptr)
10108 *is_instance_method_ptr = cxx_method->isInstance();
10109 if (language_ptr)
10110 *language_ptr = eLanguageTypeC_plus_plus;
10111 if (language_object_name_ptr)
10112 language_object_name_ptr->SetCString("this");
10113 return true;
10114 } else if (clang::FunctionDecl *function_decl =
10115 llvm::dyn_cast<clang::FunctionDecl>(decl_ctx)) {
10116 ClangASTMetadata *metadata =
10117 GetMetadata(&decl_ctx->getParentASTContext(), function_decl);
10118 if (metadata && metadata->HasObjectPtr()) {
10119 if (is_instance_method_ptr)
10120 *is_instance_method_ptr = true;
10121 if (language_ptr)
10122 *language_ptr = eLanguageTypeObjC;
10123 if (language_object_name_ptr)
10124 language_object_name_ptr->SetCString(metadata->GetObjectPtrName());
10125 return true;
10126 }
10127 }
10128 }
10129 return false;
10130}
10131
10132clang::DeclContext *
10133ClangASTContext::DeclContextGetAsDeclContext(const CompilerDeclContext &dc) {
10134 if (dc.IsClang())
10135 return (clang::DeclContext *)dc.GetOpaqueDeclContext();
10136 return nullptr;
10137}
10138
10139ObjCMethodDecl *
10140ClangASTContext::DeclContextGetAsObjCMethodDecl(const CompilerDeclContext &dc) {
10141 if (dc.IsClang())
10142 return llvm::dyn_cast<clang::ObjCMethodDecl>(
10143 (clang::DeclContext *)dc.GetOpaqueDeclContext());
10144 return nullptr;
10145}
10146
10147CXXMethodDecl *
10148ClangASTContext::DeclContextGetAsCXXMethodDecl(const CompilerDeclContext &dc) {
10149 if (dc.IsClang())
10150 return llvm::dyn_cast<clang::CXXMethodDecl>(
10151 (clang::DeclContext *)dc.GetOpaqueDeclContext());
10152 return nullptr;
10153}
10154
10155clang::FunctionDecl *
10156ClangASTContext::DeclContextGetAsFunctionDecl(const CompilerDeclContext &dc) {
10157 if (dc.IsClang())
10158 return llvm::dyn_cast<clang::FunctionDecl>(
10159 (clang::DeclContext *)dc.GetOpaqueDeclContext());
10160 return nullptr;
10161}
10162
10163clang::NamespaceDecl *
10164ClangASTContext::DeclContextGetAsNamespaceDecl(const CompilerDeclContext &dc) {
10165 if (dc.IsClang())
10166 return llvm::dyn_cast<clang::NamespaceDecl>(
10167 (clang::DeclContext *)dc.GetOpaqueDeclContext());
10168 return nullptr;
10169}
10170
10171ClangASTMetadata *
10172ClangASTContext::DeclContextGetMetaData(const CompilerDeclContext &dc,
10173 const void *object) {
10174 clang::ASTContext *ast = DeclContextGetClangASTContext(dc);
10175 if (ast)
10176 return ClangASTContext::GetMetadata(ast, object);
10177 return nullptr;
10178}
10179
10180clang::ASTContext *
10181ClangASTContext::DeclContextGetClangASTContext(const CompilerDeclContext &dc) {
10182 ClangASTContext *ast =
10183 llvm::dyn_cast_or_null<ClangASTContext>(dc.GetTypeSystem());
10184 if (ast)
10185 return ast->getASTContext();
10186 return nullptr;
10187}
10188
10189ClangASTContextForExpressions::ClangASTContextForExpressions(Target &target)
10190 : ClangASTContext(target.GetArchitecture().GetTriple().getTriple().c_str()),
10191 m_target_wp(target.shared_from_this()),
10192 m_persistent_variables(new ClangPersistentVariables) {}
10193
10194UserExpression *ClangASTContextForExpressions::GetUserExpression(
10195 llvm::StringRef expr, llvm::StringRef prefix, lldb::LanguageType language,
10196 Expression::ResultType desired_type,
10197 const EvaluateExpressionOptions &options) {
10198 TargetSP target_sp = m_target_wp.lock();
10199 if (!target_sp)
10200 return nullptr;
10201
10202 return new ClangUserExpression(*target_sp.get(), expr, prefix, language,
10203 desired_type, options);
10204}
10205
10206FunctionCaller *ClangASTContextForExpressions::GetFunctionCaller(
10207 const CompilerType &return_type, const Address &function_address,
10208 const ValueList &arg_value_list, const char *name) {
10209 TargetSP target_sp = m_target_wp.lock();
10210 if (!target_sp)
10211 return nullptr;
10212
10213 Process *process = target_sp->GetProcessSP().get();
10214 if (!process)
10215 return nullptr;
10216
10217 return new ClangFunctionCaller(*process, return_type, function_address,
10218 arg_value_list, name);
10219}
10220
10221UtilityFunction *
10222ClangASTContextForExpressions::GetUtilityFunction(const char *text,
10223 const char *name) {
10224 TargetSP target_sp = m_target_wp.lock();
10225 if (!target_sp)
10226 return nullptr;
10227
10228 return new ClangUtilityFunction(*target_sp.get(), text, name);
10229}
10230
10231PersistentExpressionState *
10232ClangASTContextForExpressions::GetPersistentExpressionState() {
10233 return m_persistent_variables.get();
10234}
10235
10236clang::ExternalASTMerger &
10237ClangASTContextForExpressions::GetMergerUnchecked() {
10238 lldbassert(m_scratch_ast_source_ap != nullptr)lldb_private::lldb_assert(static_cast<bool>(m_scratch_ast_source_ap
!= nullptr), "m_scratch_ast_source_ap != nullptr", __FUNCTION__
, "/build/llvm-toolchain-snapshot-8~svn345461/tools/lldb/source/Symbol/ClangASTContext.cpp"
, 10238)
;
10239 return m_scratch_ast_source_ap->GetMergerUnchecked();
10240}

/usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0/bits/unique_ptr.h

1// unique_ptr implementation -*- C++ -*-
2
3// Copyright (C) 2008-2016 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file bits/unique_ptr.h
26 * This is an internal header file, included by other library headers.
27 * Do not attempt to use it directly. @headername{memory}
28 */
29
30#ifndef _UNIQUE_PTR_H1
31#define _UNIQUE_PTR_H1 1
32
33#include <bits/c++config.h>
34#include <debug/assertions.h>
35#include <type_traits>
36#include <utility>
37#include <tuple>
38
39namespace std _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default")))
40{
41_GLIBCXX_BEGIN_NAMESPACE_VERSION
42
43 /**
44 * @addtogroup pointer_abstractions
45 * @{
46 */
47
48#if _GLIBCXX_USE_DEPRECATED1
49 template<typename> class auto_ptr;
50#endif
51
52 /// Primary template of default_delete, used by unique_ptr
53 template<typename _Tp>
54 struct default_delete
55 {
56 /// Default constructor
57 constexpr default_delete() noexcept = default;
58
59 /** @brief Converting constructor.
60 *
61 * Allows conversion from a deleter for arrays of another type, @p _Up,
62 * only if @p _Up* is convertible to @p _Tp*.
63 */
64 template<typename _Up, typename = typename
65 enable_if<is_convertible<_Up*, _Tp*>::value>::type>
66 default_delete(const default_delete<_Up>&) noexcept { }
67
68 /// Calls @c delete @p __ptr
69 void
70 operator()(_Tp* __ptr) const
71 {
72 static_assert(!is_void<_Tp>::value,
73 "can't delete pointer to incomplete type");
74 static_assert(sizeof(_Tp)>0,
75 "can't delete pointer to incomplete type");
76 delete __ptr;
77 }
78 };
79
80 // _GLIBCXX_RESOLVE_LIB_DEFECTS
81 // DR 740 - omit specialization for array objects with a compile time length
82 /// Specialization for arrays, default_delete.
83 template<typename _Tp>
84 struct default_delete<_Tp[]>
85 {
86 public:
87 /// Default constructor
88 constexpr default_delete() noexcept = default;
89
90 /** @brief Converting constructor.
91 *
92 * Allows conversion from a deleter for arrays of another type, such as
93 * a const-qualified version of @p _Tp.
94 *
95 * Conversions from types derived from @c _Tp are not allowed because
96 * it is unsafe to @c delete[] an array of derived types through a
97 * pointer to the base type.
98 */
99 template<typename _Up, typename = typename
100 enable_if<is_convertible<_Up(*)[], _Tp(*)[]>::value>::type>
101 default_delete(const default_delete<_Up[]>&) noexcept { }
102
103 /// Calls @c delete[] @p __ptr
104 template<typename _Up>
105 typename enable_if<is_convertible<_Up(*)[], _Tp(*)[]>::value>::type
106 operator()(_Up* __ptr) const
107 {
108 static_assert(sizeof(_Tp)>0,
109 "can't delete pointer to incomplete type");
110 delete [] __ptr;
111 }
112 };
113
114 /// 20.7.1.2 unique_ptr for single objects.
115 template <typename _Tp, typename _Dp = default_delete<_Tp> >
116 class unique_ptr
117 {
118 // use SFINAE to determine whether _Del::pointer exists
119 class _Pointer
120 {
121 template<typename _Up>
122 static typename _Up::pointer __test(typename _Up::pointer*);
123
124 template<typename _Up>
125 static _Tp* __test(...);
126
127 typedef typename remove_reference<_Dp>::type _Del;
128
129 public:
130 typedef decltype(__test<_Del>(0)) type;
131 };
132
133 typedef std::tuple<typename _Pointer::type, _Dp> __tuple_type;
134 __tuple_type _M_t;
135
136 public:
137 typedef typename _Pointer::type pointer;
138 typedef _Tp element_type;
139 typedef _Dp deleter_type;
140
141
142 // helper template for detecting a safe conversion from another
143 // unique_ptr
144 template<typename _Up, typename _Ep>
145 using __safe_conversion_up = __and_<
146 is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>,
147 __not_<is_array<_Up>>,
148 __or_<__and_<is_reference<deleter_type>,
149 is_same<deleter_type, _Ep>>,
150 __and_<__not_<is_reference<deleter_type>>,
151 is_convertible<_Ep, deleter_type>>
152 >
153 >;
154
155 // Constructors.
156
157 /// Default constructor, creates a unique_ptr that owns nothing.
158 constexpr unique_ptr() noexcept
159 : _M_t()
160 { static_assert(!is_pointer<deleter_type>::value,
161 "constructed with null function pointer deleter"); }
162
163 /** Takes ownership of a pointer.
164 *
165 * @param __p A pointer to an object of @c element_type
166 *
167 * The deleter will be value-initialized.
168 */
169 explicit
170 unique_ptr(pointer __p) noexcept
171 : _M_t()
172 {
173 std::get<0>(_M_t) = __p;
174 static_assert(!is_pointer<deleter_type>::value,
175 "constructed with null function pointer deleter");
176 }
177
178 /** Takes ownership of a pointer.
179 *
180 * @param __p A pointer to an object of @c element_type
181 * @param __d A reference to a deleter.
182 *
183 * The deleter will be initialized with @p __d
184 */
185 unique_ptr(pointer __p,
186 typename conditional<is_reference<deleter_type>::value,
187 deleter_type, const deleter_type&>::type __d) noexcept
188 : _M_t(__p, __d) { }
189
190 /** Takes ownership of a pointer.
191 *
192 * @param __p A pointer to an object of @c element_type
193 * @param __d An rvalue reference to a deleter.
194 *
195 * The deleter will be initialized with @p std::move(__d)
196 */
197 unique_ptr(pointer __p,
198 typename remove_reference<deleter_type>::type&& __d) noexcept
199 : _M_t(std::move(__p), std::move(__d))
200 { static_assert(!std::is_reference<deleter_type>::value,
201 "rvalue deleter bound to reference"); }
202
203 /// Creates a unique_ptr that owns nothing.
204 constexpr unique_ptr(nullptr_t) noexcept : unique_ptr() { }
205
206 // Move constructors.
207
208 /// Move constructor.
209 unique_ptr(unique_ptr&& __u) noexcept
210 : _M_t(__u.release(), std::forward<deleter_type>(__u.get_deleter())) { }
211
212 /** @brief Converting constructor from another type
213 *
214 * Requires that the pointer owned by @p __u is convertible to the
215 * type of pointer owned by this object, @p __u does not own an array,
216 * and @p __u has a compatible deleter type.
217 */
218 template<typename _Up, typename _Ep, typename = _Require<
219 __safe_conversion_up<_Up, _Ep>,
220 typename conditional<is_reference<_Dp>::value,
221 is_same<_Ep, _Dp>,
222 is_convertible<_Ep, _Dp>>::type>>
223 unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept
224 : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter()))
225 { }
226
227#if _GLIBCXX_USE_DEPRECATED1
228 /// Converting constructor from @c auto_ptr
229 template<typename _Up, typename = _Require<
230 is_convertible<_Up*, _Tp*>, is_same<_Dp, default_delete<_Tp>>>>
231 unique_ptr(auto_ptr<_Up>&& __u) noexcept;
232#endif
233
234 /// Destructor, invokes the deleter if the stored pointer is not null.
235 ~unique_ptr() noexcept
236 {
237 auto& __ptr = std::get<0>(_M_t);
238 if (__ptr != nullptr)
239 get_deleter()(__ptr);
240 __ptr = pointer();
241 }
242
243 // Assignment.
244
245 /** @brief Move assignment operator.
246 *
247 * @param __u The object to transfer ownership from.
248 *
249 * Invokes the deleter first if this object owns a pointer.
250 */
251 unique_ptr&
252 operator=(unique_ptr&& __u) noexcept
253 {
254 reset(__u.release());
255 get_deleter() = std::forward<deleter_type>(__u.get_deleter());
256 return *this;
257 }
258
259 /** @brief Assignment from another type.
260 *
261 * @param __u The object to transfer ownership from, which owns a
262 * convertible pointer to a non-array object.
263 *
264 * Invokes the deleter first if this object owns a pointer.
265 */
266 template<typename _Up, typename _Ep>
267 typename enable_if< __and_<
268 __safe_conversion_up<_Up, _Ep>,
269 is_assignable<deleter_type&, _Ep&&>
270 >::value,
271 unique_ptr&>::type
272 operator=(unique_ptr<_Up, _Ep>&& __u) noexcept
273 {
274 reset(__u.release());
275 get_deleter() = std::forward<_Ep>(__u.get_deleter());
276 return *this;
277 }
278
279 /// Reset the %unique_ptr to empty, invoking the deleter if necessary.
280 unique_ptr&
281 operator=(nullptr_t) noexcept
282 {
283 reset();
284 return *this;
285 }
286
287 // Observers.
288
289 /// Dereference the stored pointer.
290 typename add_lvalue_reference<element_type>::type
291 operator*() const
292 {
293 __glibcxx_assert(get() != pointer());
294 return *get();
295 }
296
297 /// Return the stored pointer.
298 pointer
299 operator->() const noexcept
300 {
301 _GLIBCXX_DEBUG_PEDASSERT(get() != pointer());
302 return get();
303 }
304
305 /// Return the stored pointer.
306 pointer
307 get() const noexcept
308 { return std::get<0>(_M_t); }
14
Calling 'get<0, clang::ASTContext *, std::default_delete<clang::ASTContext>>'
25
Returning from 'get<0, clang::ASTContext *, std::default_delete<clang::ASTContext>>'
26
Returning pointer
27
Assigning value
309
310 /// Return a reference to the stored deleter.
311 deleter_type&
312 get_deleter() noexcept
313 { return std::get<1>(_M_t); }
314
315 /// Return a reference to the stored deleter.
316 const deleter_type&
317 get_deleter() const noexcept
318 { return std::get<1>(_M_t); }
319
320 /// Return @c true if the stored pointer is not null.
321 explicit operator bool() const noexcept
322 { return get() == pointer() ? false : true; }
323
324 // Modifiers.
325
326 /// Release ownership of any stored pointer.
327 pointer
328 release() noexcept
329 {
330 pointer __p = get();
331 std::get<0>(_M_t) = pointer();
332 return __p;
333 }
334
335 /** @brief Replace the stored pointer.
336 *
337 * @param __p The new pointer to store.
338 *
339 * The deleter will be invoked if a pointer is already owned.
340 */
341 void
342 reset(pointer __p = pointer()) noexcept
343 {
344 using std::swap;
345 swap(std::get<0>(_M_t), __p);
346 if (__p != pointer())
347 get_deleter()(__p);
348 }
349
350 /// Exchange the pointer and deleter with another object.
351 void
352 swap(unique_ptr& __u) noexcept
353 {
354 using std::swap;
355 swap(_M_t, __u._M_t);
356 }
357
358 // Disable copy from lvalue.
359 unique_ptr(const unique_ptr&) = delete;
360 unique_ptr& operator=(const unique_ptr&) = delete;
361 };
362
363 /// 20.7.1.3 unique_ptr for array objects with a runtime length
364 // [unique.ptr.runtime]
365 // _GLIBCXX_RESOLVE_LIB_DEFECTS
366 // DR 740 - omit specialization for array objects with a compile time length
367 template<typename _Tp, typename _Dp>
368 class unique_ptr<_Tp[], _Dp>
369 {
370 // use SFINAE to determine whether _Del::pointer exists
371 class _Pointer
372 {
373 template<typename _Up>
374 static typename _Up::pointer __test(typename _Up::pointer*);
375
376 template<typename _Up>
377 static _Tp* __test(...);
378
379 typedef typename remove_reference<_Dp>::type _Del;
380
381 public:
382 typedef decltype(__test<_Del>(0)) type;
383 };
384
385 typedef std::tuple<typename _Pointer::type, _Dp> __tuple_type;
386 __tuple_type _M_t;
387
388 template<typename _Up>
389 using __remove_cv = typename remove_cv<_Up>::type;
390
391 // like is_base_of<_Tp, _Up> but false if unqualified types are the same
392 template<typename _Up>
393 using __is_derived_Tp
394 = __and_< is_base_of<_Tp, _Up>,
395 __not_<is_same<__remove_cv<_Tp>, __remove_cv<_Up>>> >;
396
397
398 public:
399 typedef typename _Pointer::type pointer;
400 typedef _Tp element_type;
401 typedef _Dp deleter_type;
402
403 // helper template for detecting a safe conversion from another
404 // unique_ptr
405 template<typename _Up, typename _Ep,
406 typename _Up_up = unique_ptr<_Up, _Ep>,
407 typename _Up_element_type = typename _Up_up::element_type>
408 using __safe_conversion_up = __and_<
409 is_array<_Up>,
410 is_same<pointer, element_type*>,
411 is_same<typename _Up_up::pointer, _Up_element_type*>,
412 is_convertible<_Up_element_type(*)[], element_type(*)[]>,
413 __or_<__and_<is_reference<deleter_type>, is_same<deleter_type, _Ep>>,
414 __and_<__not_<is_reference<deleter_type>>,
415 is_convertible<_Ep, deleter_type>>>
416 >;
417
418 // helper template for detecting a safe conversion from a raw pointer
419 template<typename _Up>
420 using __safe_conversion_raw = __and_<
421 __or_<__or_<is_same<_Up, pointer>,
422 is_same<_Up, nullptr_t>>,
423 __and_<is_pointer<_Up>,
424 is_same<pointer, element_type*>,
425 is_convertible<
426 typename remove_pointer<_Up>::type(*)[],
427 element_type(*)[]>
428 >
429 >
430 >;
431
432 // Constructors.
433
434 /// Default constructor, creates a unique_ptr that owns nothing.
435 constexpr unique_ptr() noexcept
436 : _M_t()
437 { static_assert(!std::is_pointer<deleter_type>::value,
438 "constructed with null function pointer deleter"); }
439
440 /** Takes ownership of a pointer.
441 *
442 * @param __p A pointer to an array of a type safely convertible
443 * to an array of @c element_type
444 *
445 * The deleter will be value-initialized.
446 */
447 template<typename _Up,
448 typename = typename enable_if<
449 __safe_conversion_raw<_Up>::value, bool>::type>
450 explicit
451 unique_ptr(_Up __p) noexcept
452 : _M_t(__p, deleter_type())
453 { static_assert(!is_pointer<deleter_type>::value,
454 "constructed with null function pointer deleter"); }
455
456 /** Takes ownership of a pointer.
457 *
458 * @param __p A pointer to an array of a type safely convertible
459 * to an array of @c element_type
460 * @param __d A reference to a deleter.
461 *
462 * The deleter will be initialized with @p __d
463 */
464 template<typename _Up,
465 typename = typename enable_if<
466 __safe_conversion_raw<_Up>::value, bool>::type>
467 unique_ptr(_Up __p,
468 typename conditional<is_reference<deleter_type>::value,
469 deleter_type, const deleter_type&>::type __d) noexcept
470 : _M_t(__p, __d) { }
471
472 /** Takes ownership of a pointer.
473 *
474 * @param __p A pointer to an array of a type safely convertible
475 * to an array of @c element_type
476 * @param __d A reference to a deleter.
477 *
478 * The deleter will be initialized with @p std::move(__d)
479 */
480 template<typename _Up,
481 typename = typename enable_if<
482 __safe_conversion_raw<_Up>::value, bool>::type>
483 unique_ptr(_Up __p, typename
484 remove_reference<deleter_type>::type&& __d) noexcept
485 : _M_t(std::move(__p), std::move(__d))
486 { static_assert(!is_reference<deleter_type>::value,
487 "rvalue deleter bound to reference"); }
488
489 /// Move constructor.
490 unique_ptr(unique_ptr&& __u) noexcept
491 : _M_t(__u.release(), std::forward<deleter_type>(__u.get_deleter())) { }
492
493 /// Creates a unique_ptr that owns nothing.
494 constexpr unique_ptr(nullptr_t) noexcept : unique_ptr() { }
495
496 template<typename _Up, typename _Ep,
497 typename = _Require<__safe_conversion_up<_Up, _Ep>>>
498 unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept
499 : _M_t(__u.release(), std::forward<_Ep>(__u.get_deleter()))
500 { }
501
502 /// Destructor, invokes the deleter if the stored pointer is not null.
503 ~unique_ptr()
504 {
505 auto& __ptr = std::get<0>(_M_t);
506 if (__ptr != nullptr)
507 get_deleter()(__ptr);
508 __ptr = pointer();
509 }
510
511 // Assignment.
512
513 /** @brief Move assignment operator.
514 *
515 * @param __u The object to transfer ownership from.
516 *
517 * Invokes the deleter first if this object owns a pointer.
518 */
519 unique_ptr&
520 operator=(unique_ptr&& __u) noexcept
521 {
522 reset(__u.release());
523 get_deleter() = std::forward<deleter_type>(__u.get_deleter());
524 return *this;
525 }
526
527 /** @brief Assignment from another type.
528 *
529 * @param __u The object to transfer ownership from, which owns a
530 * convertible pointer to an array object.
531 *
532 * Invokes the deleter first if this object owns a pointer.
533 */
534 template<typename _Up, typename _Ep>
535 typename
536 enable_if<__and_<__safe_conversion_up<_Up, _Ep>,
537 is_assignable<deleter_type&, _Ep&&>
538 >::value,
539 unique_ptr&>::type
540 operator=(unique_ptr<_Up, _Ep>&& __u) noexcept
541 {
542 reset(__u.release());
543 get_deleter() = std::forward<_Ep>(__u.get_deleter());
544 return *this;
545 }
546
547 /// Reset the %unique_ptr to empty, invoking the deleter if necessary.
548 unique_ptr&
549 operator=(nullptr_t) noexcept
550 {
551 reset();
552 return *this;
553 }
554
555 // Observers.
556
557 /// Access an element of owned array.
558 typename std::add_lvalue_reference<element_type>::type
559 operator[](size_t __i) const
560 {
561 __glibcxx_assert(get() != pointer());
562 return get()[__i];
563 }
564
565 /// Return the stored pointer.
566 pointer
567 get() const noexcept
568 { return std::get<0>(_M_t); }
569
570 /// Return a reference to the stored deleter.
571 deleter_type&
572 get_deleter() noexcept
573 { return std::get<1>(_M_t); }
574
575 /// Return a reference to the stored deleter.
576 const deleter_type&
577 get_deleter() const noexcept
578 { return std::get<1>(_M_t); }
579
580 /// Return @c true if the stored pointer is not null.
581 explicit operator bool() const noexcept
582 { return get() == pointer() ? false : true; }
583
584 // Modifiers.
585
586 /// Release ownership of any stored pointer.
587 pointer
588 release() noexcept
589 {
590 pointer __p = get();
591 std::get<0>(_M_t) = pointer();
592 return __p;
593 }
594
595 /** @brief Replace the stored pointer.
596 *
597 * @param __p The new pointer to store.
598 *
599 * The deleter will be invoked if a pointer is already owned.
600 */
601 template <typename _Up,
602 typename = _Require<
603 __or_<is_same<_Up, pointer>,
604 __and_<is_same<pointer, element_type*>,
605 is_pointer<_Up>,
606 is_convertible<
607 typename remove_pointer<_Up>::type(*)[],
608 element_type(*)[]
609 >
610 >
611 >
612 >>
613 void
614 reset(_Up __p) noexcept
615 {
616 pointer __ptr = __p;
617 using std::swap;
618 swap(std::get<0>(_M_t), __ptr);
619 if (__ptr != nullptr)
620 get_deleter()(__ptr);
621 }
622
623 void reset(nullptr_t = nullptr) noexcept
624 {
625 reset(pointer());
626 }
627
628 /// Exchange the pointer and deleter with another object.
629 void
630 swap(unique_ptr& __u) noexcept
631 {
632 using std::swap;
633 swap(_M_t, __u._M_t);
634 }
635
636 // Disable copy from lvalue.
637 unique_ptr(const unique_ptr&) = delete;
638 unique_ptr& operator=(const unique_ptr&) = delete;
639 };
640
641 template<typename _Tp, typename _Dp>
642 inline void
643 swap(unique_ptr<_Tp, _Dp>& __x,
644 unique_ptr<_Tp, _Dp>& __y) noexcept
645 { __x.swap(__y); }
646
647 template<typename _Tp, typename _Dp,
648 typename _Up, typename _Ep>
649 inline bool
650 operator==(const unique_ptr<_Tp, _Dp>& __x,
651 const unique_ptr<_Up, _Ep>& __y)
652 { return __x.get() == __y.get(); }
653
654 template<typename _Tp, typename _Dp>
655 inline bool
656 operator==(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept
657 { return !__x; }
658
659 template<typename _Tp, typename _Dp>
660 inline bool
661 operator==(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept
662 { return !__x; }
663
664 template<typename _Tp, typename _Dp,
665 typename _Up, typename _Ep>
666 inline bool
667 operator!=(const unique_ptr<_Tp, _Dp>& __x,
668 const unique_ptr<_Up, _Ep>& __y)
669 { return __x.get() != __y.get(); }
670
671 template<typename _Tp, typename _Dp>
672 inline bool
673 operator!=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t) noexcept
674 { return (bool)__x; }
675
676 template<typename _Tp, typename _Dp>
677 inline bool
678 operator!=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x) noexcept
679 { return (bool)__x; }
680
681 template<typename _Tp, typename _Dp,
682 typename _Up, typename _Ep>
683 inline bool
684 operator<(const unique_ptr<_Tp, _Dp>& __x,
685 const unique_ptr<_Up, _Ep>& __y)
686 {
687 typedef typename
688 std::common_type<typename unique_ptr<_Tp, _Dp>::pointer,
689 typename unique_ptr<_Up, _Ep>::pointer>::type _CT;
690 return std::less<_CT>()(__x.get(), __y.get());
691 }
692
693 template<typename _Tp, typename _Dp>
694 inline bool
695 operator<(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
696 { return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(__x.get(),
697 nullptr); }
698
699 template<typename _Tp, typename _Dp>
700 inline bool
701 operator<(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
702 { return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(nullptr,
703 __x.get()); }
704
705 template<typename _Tp, typename _Dp,
706 typename _Up, typename _Ep>
707 inline bool
708 operator<=(const unique_ptr<_Tp, _Dp>& __x,
709 const unique_ptr<_Up, _Ep>& __y)
710 { return !(__y < __x); }
711
712 template<typename _Tp, typename _Dp>
713 inline bool
714 operator<=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
715 { return !(nullptr < __x); }
716
717 template<typename _Tp, typename _Dp>
718 inline bool
719 operator<=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
720 { return !(__x < nullptr); }
721
722 template<typename _Tp, typename _Dp,
723 typename _Up, typename _Ep>
724 inline bool
725 operator>(const unique_ptr<_Tp, _Dp>& __x,
726 const unique_ptr<_Up, _Ep>& __y)
727 { return (__y < __x); }
728
729 template<typename _Tp, typename _Dp>
730 inline bool
731 operator>(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
732 { return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(nullptr,
733 __x.get()); }
734
735 template<typename _Tp, typename _Dp>
736 inline bool
737 operator>(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
738 { return std::less<typename unique_ptr<_Tp, _Dp>::pointer>()(__x.get(),
739 nullptr); }
740
741 template<typename _Tp, typename _Dp,
742 typename _Up, typename _Ep>
743 inline bool
744 operator>=(const unique_ptr<_Tp, _Dp>& __x,
745 const unique_ptr<_Up, _Ep>& __y)
746 { return !(__x < __y); }
747
748 template<typename _Tp, typename _Dp>
749 inline bool
750 operator>=(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
751 { return !(__x < nullptr); }
752
753 template<typename _Tp, typename _Dp>
754 inline bool
755 operator>=(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
756 { return !(nullptr < __x); }
757
758 /// std::hash specialization for unique_ptr.
759 template<typename _Tp, typename _Dp>
760 struct hash<unique_ptr<_Tp, _Dp>>
761 : public __hash_base<size_t, unique_ptr<_Tp, _Dp>>
762 {
763 size_t
764 operator()(const unique_ptr<_Tp, _Dp>& __u) const noexcept
765 {
766 typedef unique_ptr<_Tp, _Dp> _UP;
767 return std::hash<typename _UP::pointer>()(__u.get());
768 }
769 };
770
771#if __cplusplus201103L > 201103L
772
773#define __cpp_lib_make_unique 201304
774
775 template<typename _Tp>
776 struct _MakeUniq
777 { typedef unique_ptr<_Tp> __single_object; };
778
779 template<typename _Tp>
780 struct _MakeUniq<_Tp[]>
781 { typedef unique_ptr<_Tp[]> __array; };
782
783 template<typename _Tp, size_t _Bound>
784 struct _MakeUniq<_Tp[_Bound]>
785 { struct __invalid_type { }; };
786
787 /// std::make_unique for single objects
788 template<typename _Tp, typename... _Args>
789 inline typename _MakeUniq<_Tp>::__single_object
790 make_unique(_Args&&... __args)
791 { return unique_ptr<_Tp>(new _Tp(std::forward<_Args>(__args)...)); }
792
793 /// std::make_unique for arrays of unknown bound
794 template<typename _Tp>
795 inline typename _MakeUniq<_Tp>::__array
796 make_unique(size_t __num)
797 { return unique_ptr<_Tp>(new remove_extent_t<_Tp>[__num]()); }
798
799 /// Disable std::make_unique for arrays of known bound
800 template<typename _Tp, typename... _Args>
801 inline typename _MakeUniq<_Tp>::__invalid_type
802 make_unique(_Args&&...) = delete;
803#endif
804
805 // @} group pointer_abstractions
806
807_GLIBCXX_END_NAMESPACE_VERSION
808} // namespace
809
810#endif /* _UNIQUE_PTR_H */

/usr/lib/gcc/x86_64-linux-gnu/6.3.0/../../../../include/c++/6.3.0/tuple

1// <tuple> -*- C++ -*-
2
3// Copyright (C) 2007-2016 Free Software Foundation, Inc.
4//
5// This file is part of the GNU ISO C++ Library. This library is free
6// software; you can redistribute it and/or modify it under the
7// terms of the GNU General Public License as published by the
8// Free Software Foundation; either version 3, or (at your option)
9// any later version.
10
11// This library is distributed in the hope that it will be useful,
12// but WITHOUT ANY WARRANTY; without even the implied warranty of
13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14// GNU General Public License for more details.
15
16// Under Section 7 of GPL version 3, you are granted additional
17// permissions described in the GCC Runtime Library Exception, version
18// 3.1, as published by the Free Software Foundation.
19
20// You should have received a copy of the GNU General Public License and
21// a copy of the GCC Runtime Library Exception along with this program;
22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23// <http://www.gnu.org/licenses/>.
24
25/** @file include/tuple
26 * This is a Standard C++ Library header.
27 */
28
29#ifndef _GLIBCXX_TUPLE1
30#define _GLIBCXX_TUPLE1 1
31
32#pragma GCC system_header
33
34#if __cplusplus201103L < 201103L
35# include <bits/c++0x_warning.h>
36#else
37
38#include <utility>
39#include <array>
40#include <bits/uses_allocator.h>
41
42namespace std _GLIBCXX_VISIBILITY(default)__attribute__ ((__visibility__ ("default")))
43{
44_GLIBCXX_BEGIN_NAMESPACE_VERSION
45
46 /**
47 * @addtogroup utilities
48 * @{
49 */
50
51 template<std::size_t _Idx, typename _Head, bool _IsEmptyNotFinal>
52 struct _Head_base;
53
54 template<std::size_t _Idx, typename _Head>
55 struct _Head_base<_Idx, _Head, true>
56 : public _Head
57 {
58 constexpr _Head_base()
59 : _Head() { }
60
61 constexpr _Head_base(const _Head& __h)
62 : _Head(__h) { }
63
64 constexpr _Head_base(const _Head_base&) = default;
65 constexpr _Head_base(_Head_base&&) = default;
66
67 template<typename _UHead>
68 constexpr _Head_base(_UHead&& __h)
69 : _Head(std::forward<_UHead>(__h)) { }
70
71 _Head_base(allocator_arg_t, __uses_alloc0)
72 : _Head() { }
73
74 template<typename _Alloc>
75 _Head_base(allocator_arg_t, __uses_alloc1<_Alloc> __a)
76 : _Head(allocator_arg, *__a._M_a) { }
77
78 template<typename _Alloc>
79 _Head_base(allocator_arg_t, __uses_alloc2<_Alloc> __a)
80 : _Head(*__a._M_a) { }
81
82 template<typename _UHead>
83 _Head_base(__uses_alloc0, _UHead&& __uhead)
84 : _Head(std::forward<_UHead>(__uhead)) { }
85
86 template<typename _Alloc, typename _UHead>
87 _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead)
88 : _Head(allocator_arg, *__a._M_a, std::forward<_UHead>(__uhead)) { }
89
90 template<typename _Alloc, typename _UHead>
91 _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead)
92 : _Head(std::forward<_UHead>(__uhead), *__a._M_a) { }
93
94 static constexpr _Head&
95 _M_head(_Head_base& __b) noexcept { return __b; }
96
97 static constexpr const _Head&
98 _M_head(const _Head_base& __b) noexcept { return __b; }
99 };
100
101 template<std::size_t _Idx, typename _Head>
102 struct _Head_base<_Idx, _Head, false>
103 {
104 constexpr _Head_base()
105 : _M_head_impl() { }
106
107 constexpr _Head_base(const _Head& __h)
108 : _M_head_impl(__h) { }
109
110 constexpr _Head_base(const _Head_base&) = default;
111 constexpr _Head_base(_Head_base&&) = default;
112
113 template<typename _UHead>
114 constexpr _Head_base(_UHead&& __h)
115 : _M_head_impl(std::forward<_UHead>(__h)) { }
116
117 _Head_base(allocator_arg_t, __uses_alloc0)
118 : _M_head_impl() { }
119
120 template<typename _Alloc>
121 _Head_base(allocator_arg_t, __uses_alloc1<_Alloc> __a)
122 : _M_head_impl(allocator_arg, *__a._M_a) { }
123
124 template<typename _Alloc>
125 _Head_base(allocator_arg_t, __uses_alloc2<_Alloc> __a)
126 : _M_head_impl(*__a._M_a) { }
127
128 template<typename _UHead>
129 _Head_base(__uses_alloc0, _UHead&& __uhead)
130 : _M_head_impl(std::forward<_UHead>(__uhead)) { }
131
132 template<typename _Alloc, typename _UHead>
133 _Head_base(__uses_alloc1<_Alloc> __a, _UHead&& __uhead)
134 : _M_head_impl(allocator_arg, *__a._M_a, std::forward<_UHead>(__uhead))
135 { }
136
137 template<typename _Alloc, typename _UHead>
138 _Head_base(__uses_alloc2<_Alloc> __a, _UHead&& __uhead)
139 : _M_head_impl(std::forward<_UHead>(__uhead), *__a._M_a) { }
140
141 static constexpr _Head&
142 _M_head(_Head_base& __b) noexcept { return __b._M_head_impl; }
143
144 static constexpr const _Head&
145 _M_head(const _Head_base& __b) noexcept { return __b._M_head_impl; }
18
Returning pointer (reference to field '_M_head_impl')
146
147 _Head _M_head_impl;
148 };
149
150 /**
151 * Contains the actual implementation of the @c tuple template, stored
152 * as a recursive inheritance hierarchy from the first element (most
153 * derived class) to the last (least derived class). The @c Idx
154 * parameter gives the 0-based index of the element stored at this
155 * point in the hierarchy; we use it to implement a constant-time
156 * get() operation.
157 */
158 template<std::size_t _Idx, typename... _Elements>
159 struct _Tuple_impl;
160
161 template<typename _Tp>
162 struct __is_empty_non_tuple : is_empty<_Tp> { };
163
164 // Using EBO for elements that are tuples causes ambiguous base errors.
165 template<typename _El0, typename... _El>
166 struct __is_empty_non_tuple<tuple<_El0, _El...>> : false_type { };
167
168 // Use the Empty Base-class Optimization for empty, non-final types.
169 template<typename _Tp>
170 using __empty_not_final
171 = typename conditional<__is_final(_Tp), false_type,
172 __is_empty_non_tuple<_Tp>>::type;
173
174 /**
175 * Recursive tuple implementation. Here we store the @c Head element
176 * and derive from a @c Tuple_impl containing the remaining elements
177 * (which contains the @c Tail).
178 */
179 template<std::size_t _Idx, typename _Head, typename... _Tail>
180 struct _Tuple_impl<_Idx, _Head, _Tail...>
181 : public _Tuple_impl<_Idx + 1, _Tail...>,
182 private _Head_base<_Idx, _Head, __empty_not_final<_Head>::value>
183 {
184 template<std::size_t, typename...> friend class _Tuple_impl;
185
186 typedef _Tuple_impl<_Idx + 1, _Tail...> _Inherited;
187 typedef _Head_base<_Idx, _Head, __empty_not_final<_Head>::value> _Base;
188
189 static constexpr _Head&
190 _M_head(_Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }
191
192 static constexpr const _Head&
193 _M_head(const _Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }
17
Calling '_Head_base::_M_head'
19
Returning from '_Head_base::_M_head'
20
Returning pointer (reference to field '_M_head_impl')
194
195 static constexpr _Inherited&
196 _M_tail(_Tuple_impl& __t) noexcept { return __t; }
197
198 static constexpr const _Inherited&
199 _M_tail(const _Tuple_impl& __t) noexcept { return __t; }
200
201 constexpr _Tuple_impl()
202 : _Inherited(), _Base() { }
203
204 explicit
205 constexpr _Tuple_impl(const _Head& __head, const _Tail&... __tail)
206 : _Inherited(__tail...), _Base(__head) { }
207
208 template<typename _UHead, typename... _UTail, typename = typename
209 enable_if<sizeof...(_Tail) == sizeof...(_UTail)>::type>
210 explicit
211 constexpr _Tuple_impl(_UHead&& __head, _UTail&&... __tail)
212 : _Inherited(std::forward<_UTail>(__tail)...),
213 _Base(std::forward<_UHead>(__head)) { }
214
215 constexpr _Tuple_impl(const _Tuple_impl&) = default;
216
217 constexpr
218 _Tuple_impl(_Tuple_impl&& __in)
219 noexcept(__and_<is_nothrow_move_constructible<_Head>,
220 is_nothrow_move_constructible<_Inherited>>::value)
221 : _Inherited(std::move(_M_tail(__in))),
222 _Base(std::forward<_Head>(_M_head(__in))) { }
223
224 template<typename... _UElements>
225 constexpr _Tuple_impl(const _Tuple_impl<_Idx, _UElements...>& __in)
226 : _Inherited(_Tuple_impl<_Idx, _UElements...>::_M_tail(__in)),
227 _Base(_Tuple_impl<_Idx, _UElements...>::_M_head(__in)) { }
228
229 template<typename _UHead, typename... _UTails>
230 constexpr _Tuple_impl(_Tuple_impl<_Idx, _UHead, _UTails...>&& __in)
231 : _Inherited(std::move
232 (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in))),
233 _Base(std::forward<_UHead>
234 (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in))) { }
235
236 template<typename _Alloc>
237 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a)
238 : _Inherited(__tag, __a),
239 _Base(__tag, __use_alloc<_Head>(__a)) { }
240
241 template<typename _Alloc>
242 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
243 const _Head& __head, const _Tail&... __tail)
244 : _Inherited(__tag, __a, __tail...),
245 _Base(__use_alloc<_Head, _Alloc, _Head>(__a), __head) { }
246
247 template<typename _Alloc, typename _UHead, typename... _UTail,
248 typename = typename enable_if<sizeof...(_Tail)
249 == sizeof...(_UTail)>::type>
250 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
251 _UHead&& __head, _UTail&&... __tail)
252 : _Inherited(__tag, __a, std::forward<_UTail>(__tail)...),
253 _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
254 std::forward<_UHead>(__head)) { }
255
256 template<typename _Alloc>
257 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
258 const _Tuple_impl& __in)
259 : _Inherited(__tag, __a, _M_tail(__in)),
260 _Base(__use_alloc<_Head, _Alloc, _Head>(__a), _M_head(__in)) { }
261
262 template<typename _Alloc>
263 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
264 _Tuple_impl&& __in)
265 : _Inherited(__tag, __a, std::move(_M_tail(__in))),
266 _Base(__use_alloc<_Head, _Alloc, _Head>(__a),
267 std::forward<_Head>(_M_head(__in))) { }
268
269 template<typename _Alloc, typename... _UElements>
270 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
271 const _Tuple_impl<_Idx, _UElements...>& __in)
272 : _Inherited(__tag, __a,
273 _Tuple_impl<_Idx, _UElements...>::_M_tail(__in)),
274 _Base(__use_alloc<_Head, _Alloc, _Head>(__a),
275 _Tuple_impl<_Idx, _UElements...>::_M_head(__in)) { }
276
277 template<typename _Alloc, typename _UHead, typename... _UTails>
278 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
279 _Tuple_impl<_Idx, _UHead, _UTails...>&& __in)
280 : _Inherited(__tag, __a, std::move
281 (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in))),
282 _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
283 std::forward<_UHead>
284 (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in))) { }
285
286 _Tuple_impl&
287 operator=(const _Tuple_impl& __in)
288 {
289 _M_head(*this) = _M_head(__in);
290 _M_tail(*this) = _M_tail(__in);
291 return *this;
292 }
293
294 _Tuple_impl&
295 operator=(_Tuple_impl&& __in)
296 noexcept(__and_<is_nothrow_move_assignable<_Head>,
297 is_nothrow_move_assignable<_Inherited>>::value)
298 {
299 _M_head(*this) = std::forward<_Head>(_M_head(__in));
300 _M_tail(*this) = std::move(_M_tail(__in));
301 return *this;
302 }
303
304 template<typename... _UElements>
305 _Tuple_impl&
306 operator=(const _Tuple_impl<_Idx, _UElements...>& __in)
307 {
308 _M_head(*this) = _Tuple_impl<_Idx, _UElements...>::_M_head(__in);
309 _M_tail(*this) = _Tuple_impl<_Idx, _UElements...>::_M_tail(__in);
310 return *this;
311 }
312
313 template<typename _UHead, typename... _UTails>
314 _Tuple_impl&
315 operator=(_Tuple_impl<_Idx, _UHead, _UTails...>&& __in)
316 {
317 _M_head(*this) = std::forward<_UHead>
318 (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_head(__in));
319 _M_tail(*this) = std::move
320 (_Tuple_impl<_Idx, _UHead, _UTails...>::_M_tail(__in));
321 return *this;
322 }
323
324 protected:
325 void
326 _M_swap(_Tuple_impl& __in)
327 noexcept(__is_nothrow_swappable<_Head>::value
328 && noexcept(_M_tail(__in)._M_swap(_M_tail(__in))))
329 {
330 using std::swap;
331 swap(_M_head(*this), _M_head(__in));
332 _Inherited::_M_swap(_M_tail(__in));
333 }
334 };
335
336 // Basis case of inheritance recursion.
337 template<std::size_t _Idx, typename _Head>
338 struct _Tuple_impl<_Idx, _Head>
339 : private _Head_base<_Idx, _Head, __empty_not_final<_Head>::value>
340 {
341 template<std::size_t, typename...> friend class _Tuple_impl;
342
343 typedef _Head_base<_Idx, _Head, __empty_not_final<_Head>::value> _Base;
344
345 static constexpr _Head&
346 _M_head(_Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }
347
348 static constexpr const _Head&
349 _M_head(const _Tuple_impl& __t) noexcept { return _Base::_M_head(__t); }
350
351 constexpr _Tuple_impl()
352 : _Base() { }
353
354 explicit
355 constexpr _Tuple_impl(const _Head& __head)
356 : _Base(__head) { }
357
358 template<typename _UHead>
359 explicit
360 constexpr _Tuple_impl(_UHead&& __head)
361 : _Base(std::forward<_UHead>(__head)) { }
362
363 constexpr _Tuple_impl(const _Tuple_impl&) = default;
364
365 constexpr
366 _Tuple_impl(_Tuple_impl&& __in)
367 noexcept(is_nothrow_move_constructible<_Head>::value)
368 : _Base(std::forward<_Head>(_M_head(__in))) { }
369
370 template<typename _UHead>
371 constexpr _Tuple_impl(const _Tuple_impl<_Idx, _UHead>& __in)
372 : _Base(_Tuple_impl<_Idx, _UHead>::_M_head(__in)) { }
373
374 template<typename _UHead>
375 constexpr _Tuple_impl(_Tuple_impl<_Idx, _UHead>&& __in)
376 : _Base(std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in)))
377 { }
378
379 template<typename _Alloc>
380 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a)
381 : _Base(__tag, __use_alloc<_Head>(__a)) { }
382
383 template<typename _Alloc>
384 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
385 const _Head& __head)
386 : _Base(__use_alloc<_Head, _Alloc, _Head>(__a), __head) { }
387
388 template<typename _Alloc, typename _UHead>
389 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
390 _UHead&& __head)
391 : _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
392 std::forward<_UHead>(__head)) { }
393
394 template<typename _Alloc>
395 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
396 const _Tuple_impl& __in)
397 : _Base(__use_alloc<_Head, _Alloc, _Head>(__a), _M_head(__in)) { }
398
399 template<typename _Alloc>
400 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
401 _Tuple_impl&& __in)
402 : _Base(__use_alloc<_Head, _Alloc, _Head>(__a),
403 std::forward<_Head>(_M_head(__in))) { }
404
405 template<typename _Alloc, typename _UHead>
406 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
407 const _Tuple_impl<_Idx, _UHead>& __in)
408 : _Base(__use_alloc<_Head, _Alloc, _Head>(__a),
409 _Tuple_impl<_Idx, _UHead>::_M_head(__in)) { }
410
411 template<typename _Alloc, typename _UHead>
412 _Tuple_impl(allocator_arg_t __tag, const _Alloc& __a,
413 _Tuple_impl<_Idx, _UHead>&& __in)
414 : _Base(__use_alloc<_Head, _Alloc, _UHead>(__a),
415 std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in)))
416 { }
417
418 _Tuple_impl&
419 operator=(const _Tuple_impl& __in)
420 {
421 _M_head(*this) = _M_head(__in);
422 return *this;
423 }
424
425 _Tuple_impl&
426 operator=(_Tuple_impl&& __in)
427 noexcept(is_nothrow_move_assignable<_Head>::value)
428 {
429 _M_head(*this) = std::forward<_Head>(_M_head(__in));
430 return *this;
431 }
432
433 template<typename _UHead>
434 _Tuple_impl&
435 operator=(const _Tuple_impl<_Idx, _UHead>& __in)
436 {
437 _M_head(*this) = _Tuple_impl<_Idx, _UHead>::_M_head(__in);
438 return *this;
439 }
440
441 template<typename _UHead>
442 _Tuple_impl&
443 operator=(_Tuple_impl<_Idx, _UHead>&& __in)
444 {
445 _M_head(*this)
446 = std::forward<_UHead>(_Tuple_impl<_Idx, _UHead>::_M_head(__in));
447 return *this;
448 }
449
450 protected:
451 void
452 _M_swap(_Tuple_impl& __in)
453 noexcept(__is_nothrow_swappable<_Head>::value)
454 {
455 using std::swap;
456 swap(_M_head(*this), _M_head(__in));
457 }
458 };
459
460 template<typename... _Elements>
461 class tuple;
462
463 // Concept utility functions, reused in conditionally-explicit
464 // constructors.
465 template<bool, typename... _Elements>
466 struct _TC
467 {
468 template<typename... _UElements>
469 static constexpr bool _ConstructibleTuple()
470 {
471 return __and_<is_constructible<_Elements, const _UElements&>...>::value;
472 }
473
474 template<typename... _UElements>
475 static constexpr bool _ImplicitlyConvertibleTuple()
476 {
477 return __and_<is_convertible<const _UElements&, _Elements>...>::value;
478 }
479
480 template<typename... _UElements>
481 static constexpr bool _MoveConstructibleTuple()
482 {
483 return __and_<is_constructible<_Elements, _UElements&&>...>::value;
484 }
485
486 template<typename... _UElements>
487 static constexpr bool _ImplicitlyMoveConvertibleTuple()
488 {
489 return __and_<is_convertible<_UElements&&, _Elements>...>::value;
490 }
491
492 template<typename _SrcTuple>
493 static constexpr bool _NonNestedTuple()
494 {
495 return __and_<__not_<is_same<tuple<_Elements...>,
496 typename remove_cv<
497 typename remove_reference<_SrcTuple>::type
498 >::type>>,
499 __not_<is_convertible<_SrcTuple, _Elements...>>,
500 __not_<is_constructible<_Elements..., _SrcTuple>>
501 >::value;
502 }
503 template<typename... _UElements>
504 static constexpr bool _NotSameTuple()
505 {
506 return __not_<is_same<tuple<_Elements...>,
507 typename remove_const<
508 typename remove_reference<_UElements...>::type
509 >::type>>::value;
510 }
511 };
512
513 template<typename... _Elements>
514 struct _TC<false, _Elements...>
515 {
516 template<typename... _UElements>
517 static constexpr bool _ConstructibleTuple()
518 {
519 return false;
520 }
521
522 template<typename... _UElements>
523 static constexpr bool _ImplicitlyConvertibleTuple()
524 {
525 return false;
526 }
527
528 template<typename... _UElements>
529 static constexpr bool _MoveConstructibleTuple()
530 {
531 return false;
532 }
533
534 template<typename... _UElements>
535 static constexpr bool _ImplicitlyMoveConvertibleTuple()
536 {
537 return false;
538 }
539
540 template<typename... _UElements>
541 static constexpr bool _NonNestedTuple()
542 {
543 return true;
544 }
545 template<typename... _UElements>
546 static constexpr bool _NotSameTuple()
547 {
548 return true;
549 }
550 };
551
552 /// Primary class template, tuple
553 template<typename... _Elements>
554 class tuple : public _Tuple_impl<0, _Elements...>
555 {
556 typedef _Tuple_impl<0, _Elements...> _Inherited;
557
558 // Used for constraining the default constructor so
559 // that it becomes dependent on the constraints.
560 template<typename _Dummy>
561 struct _TC2
562 {
563 static constexpr bool _DefaultConstructibleTuple()
564 {
565 return __and_<is_default_constructible<_Elements>...>::value;
566 }
567 static constexpr bool _ImplicitlyDefaultConstructibleTuple()
568 {
569 return __and_<__is_implicitly_default_constructible<_Elements>...>
570 ::value;
571 }
572 };
573
574 public:
575 template<typename _Dummy = void,
576 typename enable_if<_TC2<_Dummy>::
577 _ImplicitlyDefaultConstructibleTuple(),
578 bool>::type = true>
579 constexpr tuple()
580 : _Inherited() { }
581
582 template<typename _Dummy = void,
583 typename enable_if<_TC2<_Dummy>::
584 _DefaultConstructibleTuple()
585 &&
586 !_TC2<_Dummy>::
587 _ImplicitlyDefaultConstructibleTuple(),
588 bool>::type = false>
589 explicit constexpr tuple()
590 : _Inherited() { }
591
592 // Shortcut for the cases where constructors taking _Elements...
593 // need to be constrained.
594 template<typename _Dummy> using _TCC =
595 _TC<is_same<_Dummy, void>::value,
596 _Elements...>;
597
598 template<typename _Dummy = void,
599 typename enable_if<
600 _TCC<_Dummy>::template
601 _ConstructibleTuple<_Elements...>()
602 && _TCC<_Dummy>::template
603 _ImplicitlyConvertibleTuple<_Elements...>()
604 && (sizeof...(_Elements) >= 1),
605 bool>::type=true>
606 constexpr tuple(const _Elements&... __elements)
607 : _Inherited(__elements...) { }
608
609 template<typename _Dummy = void,
610 typename enable_if<
611 _TCC<_Dummy>::template
612 _ConstructibleTuple<_Elements...>()
613 && !_TCC<_Dummy>::template
614 _ImplicitlyConvertibleTuple<_Elements...>()
615 && (sizeof...(_Elements) >= 1),
616 bool>::type=false>
617 explicit constexpr tuple(const _Elements&... __elements)
618 : _Inherited(__elements...) { }
619
620 // Shortcut for the cases where constructors taking _UElements...
621 // need to be constrained.
622 template<typename... _UElements> using _TMC =
623 _TC<(sizeof...(_Elements) == sizeof...(_UElements)),
624 _Elements...>;
625
626 template<typename... _UElements, typename
627 enable_if<
628 _TC<sizeof...(_UElements) == 1, _Elements...>::template
629 _NotSameTuple<_UElements...>()
630 && _TMC<_UElements...>::template
631 _MoveConstructibleTuple<_UElements...>()
632 && _TMC<_UElements...>::template
633 _ImplicitlyMoveConvertibleTuple<_UElements...>()
634 && (sizeof...(_Elements) >= 1),
635 bool>::type=true>
636 constexpr tuple(_UElements&&... __elements)
637 : _Inherited(std::forward<_UElements>(__elements)...) { }
638
639 template<typename... _UElements, typename
640 enable_if<
641 _TC<sizeof...(_UElements) == 1, _Elements...>::template
642 _NotSameTuple<_UElements...>()
643 && _TMC<_UElements...>::template
644 _MoveConstructibleTuple<_UElements...>()
645 && !_TMC<_UElements...>::template
646 _ImplicitlyMoveConvertibleTuple<_UElements...>()
647 && (sizeof...(_Elements) >= 1),
648 bool>::type=false>
649 explicit constexpr tuple(_UElements&&... __elements)
650 : _Inherited(std::forward<_UElements>(__elements)...) { }
651
652 constexpr tuple(const tuple&) = default;
653
654 constexpr tuple(tuple&&) = default;
655
656 // Shortcut for the cases where constructors taking tuples
657 // must avoid creating temporaries.
658 template<typename _Dummy> using _TNTC =
659 _TC<is_same<_Dummy, void>::value && sizeof...(_Elements) == 1,
660 _Elements...>;
661
662 template<typename... _UElements, typename _Dummy = void, typename
663 enable_if<_TMC<_UElements...>::template
664 _ConstructibleTuple<_UElements...>()
665 && _TMC<_UElements...>::template
666 _ImplicitlyConvertibleTuple<_UElements...>()
667 && _TNTC<_Dummy>::template
668 _NonNestedTuple<const tuple<_UElements...>&>(),
669 bool>::type=true>
670 constexpr tuple(const tuple<_UElements...>& __in)
671 : _Inherited(static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
672 { }
673
674 template<typename... _UElements, typename _Dummy = void, typename
675 enable_if<_TMC<_UElements...>::template
676 _ConstructibleTuple<_UElements...>()
677 && !_TMC<_UElements...>::template
678 _ImplicitlyConvertibleTuple<_UElements...>()
679 && _TNTC<_Dummy>::template
680 _NonNestedTuple<const tuple<_UElements...>&>(),
681 bool>::type=false>
682 explicit constexpr tuple(const tuple<_UElements...>& __in)
683 : _Inherited(static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
684 { }
685
686 template<typename... _UElements, typename _Dummy = void, typename
687 enable_if<_TMC<_UElements...>::template
688 _MoveConstructibleTuple<_UElements...>()
689 && _TMC<_UElements...>::template
690 _ImplicitlyMoveConvertibleTuple<_UElements...>()
691 && _TNTC<_Dummy>::template
692 _NonNestedTuple<tuple<_UElements...>&&>(),
693 bool>::type=true>
694 constexpr tuple(tuple<_UElements...>&& __in)
695 : _Inherited(static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) { }
696
697 template<typename... _UElements, typename _Dummy = void, typename
698 enable_if<_TMC<_UElements...>::template
699 _MoveConstructibleTuple<_UElements...>()
700 && !_TMC<_UElements...>::template
701 _ImplicitlyMoveConvertibleTuple<_UElements...>()
702 && _TNTC<_Dummy>::template
703 _NonNestedTuple<tuple<_UElements...>&&>(),
704 bool>::type=false>
705 explicit constexpr tuple(tuple<_UElements...>&& __in)
706 : _Inherited(static_cast<_Tuple_impl<0, _UElements...>&&>(__in)) { }
707
708 // Allocator-extended constructors.
709
710 template<typename _Alloc>
711 tuple(allocator_arg_t __tag, const _Alloc& __a)
712 : _Inherited(__tag, __a) { }
713
714 template<typename _Alloc, typename _Dummy = void,
715 typename enable_if<
716 _TCC<_Dummy>::template
717 _ConstructibleTuple<_Elements...>()
718 && _TCC<_Dummy>::template
719 _ImplicitlyConvertibleTuple<_Elements...>(),
720 bool>::type=true>
721 tuple(allocator_arg_t __tag, const _Alloc& __a,
722 const _Elements&... __elements)
723 : _Inherited(__tag, __a, __elements...) { }
724
725 template<typename _Alloc, typename _Dummy = void,
726 typename enable_if<
727 _TCC<_Dummy>::template
728 _ConstructibleTuple<_Elements...>()
729 && !_TCC<_Dummy>::template
730 _ImplicitlyConvertibleTuple<_Elements...>(),
731 bool>::type=false>
732 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
733 const _Elements&... __elements)
734 : _Inherited(__tag, __a, __elements...) { }
735
736 template<typename _Alloc, typename... _UElements, typename
737 enable_if<_TMC<_UElements...>::template
738 _MoveConstructibleTuple<_UElements...>()
739 && _TMC<_UElements...>::template
740 _ImplicitlyMoveConvertibleTuple<_UElements...>(),
741 bool>::type=true>
742 tuple(allocator_arg_t __tag, const _Alloc& __a,
743 _UElements&&... __elements)
744 : _Inherited(__tag, __a, std::forward<_UElements>(__elements)...)
745 { }
746
747 template<typename _Alloc, typename... _UElements, typename
748 enable_if<_TMC<_UElements...>::template
749 _MoveConstructibleTuple<_UElements...>()
750 && !_TMC<_UElements...>::template
751 _ImplicitlyMoveConvertibleTuple<_UElements...>(),
752 bool>::type=false>
753 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
754 _UElements&&... __elements)
755 : _Inherited(__tag, __a, std::forward<_UElements>(__elements)...)
756 { }
757
758 template<typename _Alloc>
759 tuple(allocator_arg_t __tag, const _Alloc& __a, const tuple& __in)
760 : _Inherited(__tag, __a, static_cast<const _Inherited&>(__in)) { }
761
762 template<typename _Alloc>
763 tuple(allocator_arg_t __tag, const _Alloc& __a, tuple&& __in)
764 : _Inherited(__tag, __a, static_cast<_Inherited&&>(__in)) { }
765
766 template<typename _Alloc, typename... _UElements, typename
767 enable_if<_TMC<_UElements...>::template
768 _ConstructibleTuple<_UElements...>()
769 && _TMC<_UElements...>::template
770 _ImplicitlyConvertibleTuple<_UElements...>(),
771 bool>::type=true>
772 tuple(allocator_arg_t __tag, const _Alloc& __a,
773 const tuple<_UElements...>& __in)
774 : _Inherited(__tag, __a,
775 static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
776 { }
777
778 template<typename _Alloc, typename... _UElements, typename
779 enable_if<_TMC<_UElements...>::template
780 _ConstructibleTuple<_UElements...>()
781 && !_TMC<_UElements...>::template
782 _ImplicitlyConvertibleTuple<_UElements...>(),
783 bool>::type=false>
784 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
785 const tuple<_UElements...>& __in)
786 : _Inherited(__tag, __a,
787 static_cast<const _Tuple_impl<0, _UElements...>&>(__in))
788 { }
789
790 template<typename _Alloc, typename... _UElements, typename
791 enable_if<_TMC<_UElements...>::template
792 _MoveConstructibleTuple<_UElements...>()
793 && _TMC<_UElements...>::template
794 _ImplicitlyMoveConvertibleTuple<_UElements...>(),
795 bool>::type=true>
796 tuple(allocator_arg_t __tag, const _Alloc& __a,
797 tuple<_UElements...>&& __in)
798 : _Inherited(__tag, __a,
799 static_cast<_Tuple_impl<0, _UElements...>&&>(__in))
800 { }
801
802 template<typename _Alloc, typename... _UElements, typename
803 enable_if<_TMC<_UElements...>::template
804 _MoveConstructibleTuple<_UElements...>()
805 && !_TMC<_UElements...>::template
806 _ImplicitlyMoveConvertibleTuple<_UElements...>(),
807 bool>::type=false>
808 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
809 tuple<_UElements...>&& __in)
810 : _Inherited(__tag, __a,
811 static_cast<_Tuple_impl<0, _UElements...>&&>(__in))
812 { }
813
814 tuple&
815 operator=(const tuple& __in)
816 {
817 static_cast<_Inherited&>(*this) = __in;
818 return *this;
819 }
820
821 tuple&
822 operator=(tuple&& __in)
823 noexcept(is_nothrow_move_assignable<_Inherited>::value)
824 {
825 static_cast<_Inherited&>(*this) = std::move(__in);
826 return *this;
827 }
828
829 template<typename... _UElements, typename = typename
830 enable_if<sizeof...(_UElements)
831 == sizeof...(_Elements)>::type>
832 tuple&
833 operator=(const tuple<_UElements...>& __in)
834 {
835 static_cast<_Inherited&>(*this) = __in;
836 return *this;
837 }
838
839 template<typename... _UElements, typename = typename
840 enable_if<sizeof...(_UElements)
841 == sizeof...(_Elements)>::type>
842 tuple&
843 operator=(tuple<_UElements...>&& __in)
844 {
845 static_cast<_Inherited&>(*this) = std::move(__in);
846 return *this;
847 }
848
849 void
850 swap(tuple& __in)
851 noexcept(noexcept(__in._M_swap(__in)))
852 { _Inherited::_M_swap(__in); }
853 };
854
855 // Explicit specialization, zero-element tuple.
856 template<>
857 class tuple<>
858 {
859 public:
860 void swap(tuple&) noexcept { /* no-op */ }
861 };
862
863 /// Partial specialization, 2-element tuple.
864 /// Includes construction and assignment from a pair.
865 template<typename _T1, typename _T2>
866 class tuple<_T1, _T2> : public _Tuple_impl<0, _T1, _T2>
867 {
868 typedef _Tuple_impl<0, _T1, _T2> _Inherited;
869
870 public:
871 template <typename _U1 = _T1,
872 typename _U2 = _T2,
873 typename enable_if<__and_<
874 __is_implicitly_default_constructible<_U1>,
875 __is_implicitly_default_constructible<_U2>>
876 ::value, bool>::type = true>
877
878 constexpr tuple()
879 : _Inherited() { }
880
881 template <typename _U1 = _T1,
882 typename _U2 = _T2,
883 typename enable_if<
884 __and_<
885 is_default_constructible<_U1>,
886 is_default_constructible<_U2>,
887 __not_<
888 __and_<__is_implicitly_default_constructible<_U1>,
889 __is_implicitly_default_constructible<_U2>>>>
890 ::value, bool>::type = false>
891
892 explicit constexpr tuple()
893 : _Inherited() { }
894
895 // Shortcut for the cases where constructors taking _T1, _T2
896 // need to be constrained.
897 template<typename _Dummy> using _TCC =
898 _TC<is_same<_Dummy, void>::value, _T1, _T2>;
899
900 template<typename _Dummy = void, typename
901 enable_if<_TCC<_Dummy>::template
902 _ConstructibleTuple<_T1, _T2>()
903 && _TCC<_Dummy>::template
904 _ImplicitlyConvertibleTuple<_T1, _T2>(),
905 bool>::type = true>
906 constexpr tuple(const _T1& __a1, const _T2& __a2)
907 : _Inherited(__a1, __a2) { }
908
909 template<typename _Dummy = void, typename
910 enable_if<_TCC<_Dummy>::template
911 _ConstructibleTuple<_T1, _T2>()
912 && !_TCC<_Dummy>::template
913 _ImplicitlyConvertibleTuple<_T1, _T2>(),
914 bool>::type = false>
915 explicit constexpr tuple(const _T1& __a1, const _T2& __a2)
916 : _Inherited(__a1, __a2) { }
917
918 // Shortcut for the cases where constructors taking _U1, _U2
919 // need to be constrained.
920 using _TMC = _TC<true, _T1, _T2>;
921
922 template<typename _U1, typename _U2, typename
923 enable_if<_TMC::template
924 _MoveConstructibleTuple<_U1, _U2>()
925 && _TMC::template
926 _ImplicitlyMoveConvertibleTuple<_U1, _U2>()
927 && !is_same<typename decay<_U1>::type,
928 allocator_arg_t>::value,
929 bool>::type = true>
930 constexpr tuple(_U1&& __a1, _U2&& __a2)
931 : _Inherited(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { }
932
933 template<typename _U1, typename _U2, typename
934 enable_if<_TMC::template
935 _MoveConstructibleTuple<_U1, _U2>()
936 && !_TMC::template
937 _ImplicitlyMoveConvertibleTuple<_U1, _U2>()
938 && !is_same<typename decay<_U1>::type,
939 allocator_arg_t>::value,
940 bool>::type = false>
941 explicit constexpr tuple(_U1&& __a1, _U2&& __a2)
942 : _Inherited(std::forward<_U1>(__a1), std::forward<_U2>(__a2)) { }
943
944 constexpr tuple(const tuple&) = default;
945
946 constexpr tuple(tuple&&) = default;
947
948 template<typename _U1, typename _U2, typename
949 enable_if<_TMC::template
950 _ConstructibleTuple<_U1, _U2>()
951 && _TMC::template
952 _ImplicitlyConvertibleTuple<_U1, _U2>(),
953 bool>::type = true>
954 constexpr tuple(const tuple<_U1, _U2>& __in)
955 : _Inherited(static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in)) { }
956
957 template<typename _U1, typename _U2, typename
958 enable_if<_TMC::template
959 _ConstructibleTuple<_U1, _U2>()
960 && !_TMC::template
961 _ImplicitlyConvertibleTuple<_U1, _U2>(),
962 bool>::type = false>
963 explicit constexpr tuple(const tuple<_U1, _U2>& __in)
964 : _Inherited(static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in)) { }
965
966 template<typename _U1, typename _U2, typename
967 enable_if<_TMC::template
968 _MoveConstructibleTuple<_U1, _U2>()
969 && _TMC::template
970 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
971 bool>::type = true>
972 constexpr tuple(tuple<_U1, _U2>&& __in)
973 : _Inherited(static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) { }
974
975 template<typename _U1, typename _U2, typename
976 enable_if<_TMC::template
977 _MoveConstructibleTuple<_U1, _U2>()
978 && !_TMC::template
979 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
980 bool>::type = false>
981 explicit constexpr tuple(tuple<_U1, _U2>&& __in)
982 : _Inherited(static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in)) { }
983
984 template<typename _U1, typename _U2, typename
985 enable_if<_TMC::template
986 _ConstructibleTuple<_U1, _U2>()
987 && _TMC::template
988 _ImplicitlyConvertibleTuple<_U1, _U2>(),
989 bool>::type = true>
990 constexpr tuple(const pair<_U1, _U2>& __in)
991 : _Inherited(__in.first, __in.second) { }
992
993 template<typename _U1, typename _U2, typename
994 enable_if<_TMC::template
995 _ConstructibleTuple<_U1, _U2>()
996 && !_TMC::template
997 _ImplicitlyConvertibleTuple<_U1, _U2>(),
998 bool>::type = false>
999 explicit constexpr tuple(const pair<_U1, _U2>& __in)
1000 : _Inherited(__in.first, __in.second) { }
1001
1002 template<typename _U1, typename _U2, typename
1003 enable_if<_TMC::template
1004 _MoveConstructibleTuple<_U1, _U2>()
1005 && _TMC::template
1006 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1007 bool>::type = true>
1008 constexpr tuple(pair<_U1, _U2>&& __in)
1009 : _Inherited(std::forward<_U1>(__in.first),
1010 std::forward<_U2>(__in.second)) { }
1011
1012 template<typename _U1, typename _U2, typename
1013 enable_if<_TMC::template
1014 _MoveConstructibleTuple<_U1, _U2>()
1015 && !_TMC::template
1016 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1017 bool>::type = false>
1018 explicit constexpr tuple(pair<_U1, _U2>&& __in)
1019 : _Inherited(std::forward<_U1>(__in.first),
1020 std::forward<_U2>(__in.second)) { }
1021
1022 // Allocator-extended constructors.
1023
1024 template<typename _Alloc>
1025 tuple(allocator_arg_t __tag, const _Alloc& __a)
1026 : _Inherited(__tag, __a) { }
1027
1028 template<typename _Alloc, typename _Dummy = void,
1029 typename enable_if<
1030 _TCC<_Dummy>::template
1031 _ConstructibleTuple<_T1, _T2>()
1032 && _TCC<_Dummy>::template
1033 _ImplicitlyConvertibleTuple<_T1, _T2>(),
1034 bool>::type=true>
1035
1036 tuple(allocator_arg_t __tag, const _Alloc& __a,
1037 const _T1& __a1, const _T2& __a2)
1038 : _Inherited(__tag, __a, __a1, __a2) { }
1039
1040 template<typename _Alloc, typename _Dummy = void,
1041 typename enable_if<
1042 _TCC<_Dummy>::template
1043 _ConstructibleTuple<_T1, _T2>()
1044 && !_TCC<_Dummy>::template
1045 _ImplicitlyConvertibleTuple<_T1, _T2>(),
1046 bool>::type=false>
1047
1048 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
1049 const _T1& __a1, const _T2& __a2)
1050 : _Inherited(__tag, __a, __a1, __a2) { }
1051
1052 template<typename _Alloc, typename _U1, typename _U2, typename
1053 enable_if<_TMC::template
1054 _MoveConstructibleTuple<_U1, _U2>()
1055 && _TMC::template
1056 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1057 bool>::type = true>
1058 tuple(allocator_arg_t __tag, const _Alloc& __a, _U1&& __a1, _U2&& __a2)
1059 : _Inherited(__tag, __a, std::forward<_U1>(__a1),
1060 std::forward<_U2>(__a2)) { }
1061
1062 template<typename _Alloc, typename _U1, typename _U2, typename
1063 enable_if<_TMC::template
1064 _MoveConstructibleTuple<_U1, _U2>()
1065 && !_TMC::template
1066 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1067 bool>::type = false>
1068 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
1069 _U1&& __a1, _U2&& __a2)
1070 : _Inherited(__tag, __a, std::forward<_U1>(__a1),
1071 std::forward<_U2>(__a2)) { }
1072
1073 template<typename _Alloc>
1074 tuple(allocator_arg_t __tag, const _Alloc& __a, const tuple& __in)
1075 : _Inherited(__tag, __a, static_cast<const _Inherited&>(__in)) { }
1076
1077 template<typename _Alloc>
1078 tuple(allocator_arg_t __tag, const _Alloc& __a, tuple&& __in)
1079 : _Inherited(__tag, __a, static_cast<_Inherited&&>(__in)) { }
1080
1081 template<typename _Alloc, typename _U1, typename _U2, typename
1082 enable_if<_TMC::template
1083 _ConstructibleTuple<_U1, _U2>()
1084 && _TMC::template
1085 _ImplicitlyConvertibleTuple<_U1, _U2>(),
1086 bool>::type = true>
1087 tuple(allocator_arg_t __tag, const _Alloc& __a,
1088 const tuple<_U1, _U2>& __in)
1089 : _Inherited(__tag, __a,
1090 static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in))
1091 { }
1092
1093 template<typename _Alloc, typename _U1, typename _U2, typename
1094 enable_if<_TMC::template
1095 _ConstructibleTuple<_U1, _U2>()
1096 && !_TMC::template
1097 _ImplicitlyConvertibleTuple<_U1, _U2>(),
1098 bool>::type = false>
1099 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
1100 const tuple<_U1, _U2>& __in)
1101 : _Inherited(__tag, __a,
1102 static_cast<const _Tuple_impl<0, _U1, _U2>&>(__in))
1103 { }
1104
1105 template<typename _Alloc, typename _U1, typename _U2, typename
1106 enable_if<_TMC::template
1107 _MoveConstructibleTuple<_U1, _U2>()
1108 && _TMC::template
1109 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1110 bool>::type = true>
1111 tuple(allocator_arg_t __tag, const _Alloc& __a, tuple<_U1, _U2>&& __in)
1112 : _Inherited(__tag, __a, static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in))
1113 { }
1114
1115 template<typename _Alloc, typename _U1, typename _U2, typename
1116 enable_if<_TMC::template
1117 _MoveConstructibleTuple<_U1, _U2>()
1118 && !_TMC::template
1119 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1120 bool>::type = false>
1121 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
1122 tuple<_U1, _U2>&& __in)
1123 : _Inherited(__tag, __a, static_cast<_Tuple_impl<0, _U1, _U2>&&>(__in))
1124 { }
1125
1126 template<typename _Alloc, typename _U1, typename _U2, typename
1127 enable_if<_TMC::template
1128 _ConstructibleTuple<_U1, _U2>()
1129 && _TMC::template
1130 _ImplicitlyConvertibleTuple<_U1, _U2>(),
1131 bool>::type = true>
1132 tuple(allocator_arg_t __tag, const _Alloc& __a,
1133 const pair<_U1, _U2>& __in)
1134 : _Inherited(__tag, __a, __in.first, __in.second) { }
1135
1136 template<typename _Alloc, typename _U1, typename _U2, typename
1137 enable_if<_TMC::template
1138 _ConstructibleTuple<_U1, _U2>()
1139 && !_TMC::template
1140 _ImplicitlyConvertibleTuple<_U1, _U2>(),
1141 bool>::type = false>
1142 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
1143 const pair<_U1, _U2>& __in)
1144 : _Inherited(__tag, __a, __in.first, __in.second) { }
1145
1146 template<typename _Alloc, typename _U1, typename _U2, typename
1147 enable_if<_TMC::template
1148 _MoveConstructibleTuple<_U1, _U2>()
1149 && _TMC::template
1150 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1151 bool>::type = true>
1152 tuple(allocator_arg_t __tag, const _Alloc& __a, pair<_U1, _U2>&& __in)
1153 : _Inherited(__tag, __a, std::forward<_U1>(__in.first),
1154 std::forward<_U2>(__in.second)) { }
1155
1156 template<typename _Alloc, typename _U1, typename _U2, typename
1157 enable_if<_TMC::template
1158 _MoveConstructibleTuple<_U1, _U2>()
1159 && !_TMC::template
1160 _ImplicitlyMoveConvertibleTuple<_U1, _U2>(),
1161 bool>::type = false>
1162 explicit tuple(allocator_arg_t __tag, const _Alloc& __a,
1163 pair<_U1, _U2>&& __in)
1164 : _Inherited(__tag, __a, std::forward<_U1>(__in.first),
1165 std::forward<_U2>(__in.second)) { }
1166
1167 tuple&
1168 operator=(const tuple& __in)
1169 {
1170 static_cast<_Inherited&>(*this) = __in;
1171 return *this;
1172 }
1173
1174 tuple&
1175 operator=(tuple&& __in)
1176 noexcept(is_nothrow_move_assignable<_Inherited>::value)
1177 {
1178 static_cast<_Inherited&>(*this) = std::move(__in);
1179 return *this;
1180 }
1181
1182 template<typename _U1, typename _U2>
1183 tuple&
1184 operator=(const tuple<_U1, _U2>& __in)
1185 {
1186 static_cast<_Inherited&>(*this) = __in;
1187 return *this;
1188 }
1189
1190 template<typename _U1, typename _U2>
1191 tuple&
1192 operator=(tuple<_U1, _U2>&& __in)
1193 {
1194 static_cast<_Inherited&>(*this) = std::move(__in);
1195 return *this;
1196 }
1197
1198 template<typename _U1, typename _U2>
1199 tuple&
1200 operator=(const pair<_U1, _U2>& __in)
1201 {
1202 this->_M_head(*this) = __in.first;
1203 this->_M_tail(*this)._M_head(*this) = __in.second;
1204 return *this;
1205 }
1206
1207 template<typename _U1, typename _U2>
1208 tuple&
1209 operator=(pair<_U1, _U2>&& __in)
1210 {
1211 this->_M_head(*this) = std::forward<_U1>(__in.first);
1212 this->_M_tail(*this)._M_head(*this) = std::forward<_U2>(__in.second);
1213 return *this;
1214 }
1215
1216 void
1217 swap(tuple& __in)
1218 noexcept(noexcept(__in._M_swap(__in)))
1219 { _Inherited::_M_swap(__in); }
1220 };
1221
1222
1223 /**
1224 * Recursive case for tuple_element: strip off the first element in
1225 * the tuple and retrieve the (i-1)th element of the remaining tuple.
1226 */
1227 template<std::size_t __i, typename _Head, typename... _Tail>
1228 struct tuple_element<__i, tuple<_Head, _Tail...> >
1229 : tuple_element<__i - 1, tuple<_Tail...> > { };
1230
1231 /**
1232 * Basis case for tuple_element: The first element is the one we're seeking.
1233 */
1234 template<typename _Head, typename... _Tail>
1235 struct tuple_element<0, tuple<_Head, _Tail...> >
1236 {
1237 typedef _Head type;
1238 };
1239
1240 /// class tuple_size
1241 template<typename... _Elements>
1242 struct tuple_size<tuple<_Elements...>>
1243 : public integral_constant<std::size_t, sizeof...(_Elements)> { };
1244
1245 template<std::size_t __i, typename _Head, typename... _Tail>
1246 constexpr _Head&
1247 __get_helper(_Tuple_impl<__i, _Head, _Tail...>& __t) noexcept
1248 { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); }
1249
1250 template<std::size_t __i, typename _Head, typename... _Tail>
1251 constexpr const _Head&
1252 __get_helper(const _Tuple_impl<__i, _Head, _Tail...>& __t) noexcept
1253 { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); }
16
Calling '_Tuple_impl::_M_head'
21
Returning from '_Tuple_impl::_M_head'
22
Returning pointer (reference to field '_M_head_impl')
1254
1255 /// Return a reference to the ith element of a tuple.
1256 template<std::size_t __i, typename... _Elements>
1257 constexpr __tuple_element_t<__i, tuple<_Elements...>>&
1258 get(tuple<_Elements...>& __t) noexcept
1259 { return std::__get_helper<__i>(__t); }
1260
1261 /// Return a const reference to the ith element of a const tuple.
1262 template<std::size_t __i, typename... _Elements>
1263 constexpr const __tuple_element_t<__i, tuple<_Elements...>>&
1264 get(const tuple<_Elements...>& __t) noexcept
1265 { return std::__get_helper<__i>(__t); }
15
Calling '__get_helper<0, clang::ASTContext *, std::default_delete<clang::ASTContext>>'
23
Returning from '__get_helper<0, clang::ASTContext *, std::default_delete<clang::ASTContext>>'
24
Returning pointer (reference to field '_M_head_impl')
1266
1267 /// Return an rvalue reference to the ith element of a tuple rvalue.
1268 template<std::size_t __i, typename... _Elements>
1269 constexpr __tuple_element_t<__i, tuple<_Elements...>>&&
1270 get(tuple<_Elements...>&& __t) noexcept
1271 {
1272 typedef __tuple_element_t<__i, tuple<_Elements...>> __element_type;
1273 return std::forward<__element_type&&>(std::get<__i>(__t));
1274 }
1275
1276#if __cplusplus201103L > 201103L
1277
1278#define __cpp_lib_tuples_by_type 201304
1279
1280 template<typename _Head, size_t __i, typename... _Tail>
1281 constexpr _Head&
1282 __get_helper2(_Tuple_impl<__i, _Head, _Tail...>& __t) noexcept
1283 { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); }
1284
1285 template<typename _Head, size_t __i, typename... _Tail>
1286 constexpr const _Head&
1287 __get_helper2(const _Tuple_impl<__i, _Head, _Tail...>& __t) noexcept
1288 { return _Tuple_impl<__i, _Head, _Tail...>::_M_head(__t); }
1289
1290 /// Return a reference to the unique element of type _Tp of a tuple.
1291 template <typename _Tp, typename... _Types>
1292 constexpr _Tp&
1293 get(tuple<_Types...>& __t) noexcept
1294 { return std::__get_helper2<_Tp>(__t); }
1295
1296 /// Return a reference to the unique element of type _Tp of a tuple rvalue.
1297 template <typename _Tp, typename... _Types>
1298 constexpr _Tp&&
1299 get(tuple<_Types...>&& __t) noexcept
1300 { return std::forward<_Tp&&>(std::__get_helper2<_Tp>(__t)); }
1301
1302 /// Return a const reference to the unique element of type _Tp of a tuple.
1303 template <typename _Tp, typename... _Types>
1304 constexpr const _Tp&
1305 get(const tuple<_Types...>& __t) noexcept
1306 { return std::__get_helper2<_Tp>(__t); }
1307#endif
1308
1309 // This class performs the comparison operations on tuples
1310 template<typename _Tp, typename _Up, size_t __i, size_t __size>
1311 struct __tuple_compare
1312 {
1313 static constexpr bool
1314 __eq(const _Tp& __t, const _Up& __u)
1315 {
1316 return bool(std::get<__i>(__t) == std::get<__i>(__u))
1317 && __tuple_compare<_Tp, _Up, __i + 1, __size>::__eq(__t, __u);
1318 }
1319
1320 static constexpr bool
1321 __less(const _Tp& __t, const _Up& __u)
1322 {
1323 return bool(std::get<__i>(__t) < std::get<__i>(__u))
1324 || (!bool(std::get<__i>(__u) < std::get<__i>(__t))
1325 && __tuple_compare<_Tp, _Up, __i + 1, __size>::__less(__t, __u));
1326 }
1327 };
1328
1329 template<typename _Tp, typename _Up, size_t __size>
1330 struct __tuple_compare<_Tp, _Up, __size, __size>
1331 {
1332 static constexpr bool
1333 __eq(const _Tp&, const _Up&) { return true; }
1334
1335 static constexpr bool
1336 __less(const _Tp&, const _Up&) { return false; }
1337 };
1338
1339 template<typename... _TElements, typename... _UElements>
1340 constexpr bool
1341 operator==(const tuple<_TElements...>& __t,
1342 const tuple<_UElements...>& __u)
1343 {
1344 static_assert(sizeof...(_TElements) == sizeof...(_UElements),
1345 "tuple objects can only be compared if they have equal sizes.");
1346 using __compare = __tuple_compare<tuple<_TElements...>,
1347 tuple<_UElements...>,
1348 0, sizeof...(_TElements)>;
1349 return __compare::__eq(__t, __u);
1350 }
1351
1352 template<typename... _TElements, typename... _UElements>
1353 constexpr bool
1354 operator<(const tuple<_TElements...>& __t,
1355 const tuple<_UElements...>& __u)
1356 {
1357 static_assert(sizeof...(_TElements) == sizeof...(_UElements),
1358 "tuple objects can only be compared if they have equal sizes.");
1359 using __compare = __tuple_compare<tuple<_TElements...>,
1360 tuple<_UElements...>,
1361 0, sizeof...(_TElements)>;
1362 return __compare::__less(__t, __u);
1363 }
1364
1365 template<typename... _TElements, typename... _UElements>
1366 constexpr bool
1367 operator!=(const tuple<_TElements...>& __t,
1368 const tuple<_UElements...>& __u)
1369 { return !(__t == __u); }
1370
1371 template<typename... _TElements, typename... _UElements>
1372 constexpr bool
1373 operator>(const tuple<_TElements...>& __t,
1374 const tuple<_UElements...>& __u)
1375 { return __u < __t; }
1376
1377 template<typename... _TElements, typename... _UElements>
1378 constexpr bool
1379 operator<=(const tuple<_TElements...>& __t,
1380 const tuple<_UElements...>& __u)
1381 { return !(__u < __t); }
1382
1383 template<typename... _TElements, typename... _UElements>
1384 constexpr bool
1385 operator>=(const tuple<_TElements...>& __t,
1386 const tuple<_UElements...>& __u)
1387 { return !(__t < __u); }
1388
1389 // NB: DR 705.
1390 template<typename... _Elements>
1391 constexpr tuple<typename __decay_and_strip<_Elements>::__type...>
1392 make_tuple(_Elements&&... __args)
1393 {
1394 typedef tuple<typename __decay_and_strip<_Elements>::__type...>
1395 __result_type;
1396 return __result_type(std::forward<_Elements>(__args)...);
1397 }
1398
1399 // _GLIBCXX_RESOLVE_LIB_DEFECTS
1400 // 2275. Why is forward_as_tuple not constexpr?
1401 template<typename... _Elements>
1402 constexpr tuple<_Elements&&...>
1403 forward_as_tuple(_Elements&&... __args) noexcept
1404 { return tuple<_Elements&&...>(std::forward<_Elements>(__args)...); }
1405
1406 template<typename... _Tps>
1407 struct __is_tuple_like_impl<tuple<_Tps...>> : true_type
1408 { };
1409
1410 // Internal type trait that allows us to sfinae-protect tuple_cat.
1411 template<typename _Tp>
1412 struct __is_tuple_like
1413 : public __is_tuple_like_impl<typename std::remove_cv
1414 <typename std::remove_reference<_Tp>::type>::type>::type
1415 { };
1416
1417 template<size_t, typename, typename, size_t>
1418 struct __make_tuple_impl;
1419
1420 template<size_t _Idx, typename _Tuple, typename... _Tp, size_t _Nm>
1421 struct __make_tuple_impl<_Idx, tuple<_Tp...>, _Tuple, _Nm>
1422 : __make_tuple_impl<_Idx + 1,
1423 tuple<_Tp..., __tuple_element_t<_Idx, _Tuple>>,
1424 _Tuple, _Nm>
1425 { };
1426
1427 template<std::size_t _Nm, typename _Tuple, typename... _Tp>
1428 struct __make_tuple_impl<_Nm, tuple<_Tp...>, _Tuple, _Nm>
1429 {
1430 typedef tuple<_Tp...> __type;
1431 };
1432
1433 template<typename _Tuple>
1434 struct __do_make_tuple
1435 : __make_tuple_impl<0, tuple<>, _Tuple, std::tuple_size<_Tuple>::value>
1436 { };
1437
1438 // Returns the std::tuple equivalent of a tuple-like type.
1439 template<typename _Tuple>
1440 struct __make_tuple
1441 : public __do_make_tuple<typename std::remove_cv
1442 <typename std::remove_reference<_Tuple>::type>::type>
1443 { };
1444
1445 // Combines several std::tuple's into a single one.
1446 template<typename...>
1447 struct __combine_tuples;
1448
1449 template<>
1450 struct __combine_tuples<>
1451 {
1452 typedef tuple<> __type;
1453 };
1454
1455 template<typename... _Ts>
1456 struct __combine_tuples<tuple<_Ts...>>
1457 {
1458 typedef tuple<_Ts...> __type;
1459 };
1460
1461 template<typename... _T1s, typename... _T2s, typename... _Rem>
1462 struct __combine_tuples<tuple<_T1s...>, tuple<_T2s...>, _Rem...>
1463 {
1464 typedef typename __combine_tuples<tuple<_T1s..., _T2s...>,
1465 _Rem...>::__type __type;
1466 };
1467
1468 // Computes the result type of tuple_cat given a set of tuple-like types.
1469 template<typename... _Tpls>
1470 struct __tuple_cat_result
1471 {
1472 typedef typename __combine_tuples
1473 <typename __make_tuple<_Tpls>::__type...>::__type __type;
1474 };
1475
1476 // Helper to determine the index set for the first tuple-like
1477 // type of a given set.
1478 template<typename...>
1479 struct __make_1st_indices;
1480
1481 template<>
1482 struct __make_1st_indices<>
1483 {
1484 typedef std::_Index_tuple<> __type;
1485 };
1486
1487 template<typename _Tp, typename... _Tpls>
1488 struct __make_1st_indices<_Tp, _Tpls...>
1489 {
1490 typedef typename std::_Build_index_tuple<std::tuple_size<
1491 typename std::remove_reference<_Tp>::type>::value>::__type __type;
1492 };
1493
1494 // Performs the actual concatenation by step-wise expanding tuple-like
1495 // objects into the elements, which are finally forwarded into the
1496 // result tuple.
1497 template<typename _Ret, typename _Indices, typename... _Tpls>
1498 struct __tuple_concater;
1499
1500 template<typename _Ret, std::size_t... _Is, typename _Tp, typename... _Tpls>
1501 struct __tuple_concater<_Ret, std::_Index_tuple<_Is...>, _Tp, _Tpls...>
1502 {
1503 template<typename... _Us>
1504 static constexpr _Ret
1505 _S_do(_Tp&& __tp, _Tpls&&... __tps, _Us&&... __us)
1506 {
1507 typedef typename __make_1st_indices<_Tpls...>::__type __idx;
1508 typedef __tuple_concater<_Ret, __idx, _Tpls...> __next;
1509 return __next::_S_do(std::forward<_Tpls>(__tps)...,
1510 std::forward<_Us>(__us)...,
1511 std::get<_Is>(std::forward<_Tp>(__tp))...);
1512 }
1513 };
1514
1515 template<typename _Ret>
1516 struct __tuple_concater<_Ret, std::_Index_tuple<>>
1517 {
1518 template<typename... _Us>
1519 static constexpr _Ret
1520 _S_do(_Us&&... __us)
1521 {
1522 return _Ret(std::forward<_Us>(__us)...);
1523 }
1524 };
1525
1526 /// tuple_cat
1527 template<typename... _Tpls, typename = typename
1528 enable_if<__and_<__is_tuple_like<_Tpls>...>::value>::type>
1529 constexpr auto
1530 tuple_cat(_Tpls&&... __tpls)
1531 -> typename __tuple_cat_result<_Tpls...>::__type
1532 {
1533 typedef typename __tuple_cat_result<_Tpls...>::__type __ret;
1534 typedef typename __make_1st_indices<_Tpls...>::__type __idx;
1535 typedef __tuple_concater<__ret, __idx, _Tpls...> __concater;
1536 return __concater::_S_do(std::forward<_Tpls>(__tpls)...);
1537 }
1538
1539 // _GLIBCXX_RESOLVE_LIB_DEFECTS
1540 // 2301. Why is tie not constexpr?
1541 /// tie
1542 template<typename... _Elements>
1543 constexpr tuple<_Elements&...>
1544 tie(_Elements&... __args) noexcept
1545 { return tuple<_Elements&...>(__args...); }
1546
1547 /// swap
1548 template<typename... _Elements>
1549 inline void
1550 swap(tuple<_Elements...>& __x, tuple<_Elements...>& __y)
1551 noexcept(noexcept(__x.swap(__y)))
1552 { __x.swap(__y); }
1553
1554 // A class (and instance) which can be used in 'tie' when an element
1555 // of a tuple is not required
1556 struct _Swallow_assign
1557 {
1558 template<class _Tp>
1559 const _Swallow_assign&
1560 operator=(const _Tp&) const
1561 { return *this; }
1562 };
1563
1564 const _Swallow_assign ignore{};
1565
1566 /// Partial specialization for tuples
1567 template<typename... _Types, typename _Alloc>
1568 struct uses_allocator<tuple<_Types...>, _Alloc> : true_type { };
1569
1570 // See stl_pair.h...
1571 template<class _T1, class _T2>
1572 template<typename... _Args1, typename... _Args2>
1573 inline
1574 pair<_T1, _T2>::
1575 pair(piecewise_construct_t,
1576 tuple<_Args1...> __first, tuple<_Args2...> __second)
1577 : pair(__first, __second,
1578 typename _Build_index_tuple<sizeof...(_Args1)>::__type(),
1579 typename _Build_index_tuple<sizeof...(_Args2)>::__type())
1580 { }
1581
1582 template<class _T1, class _T2>
1583 template<typename... _Args1, std::size_t... _Indexes1,
1584 typename... _Args2, std::size_t... _Indexes2>
1585 inline
1586 pair<_T1, _T2>::
1587 pair(tuple<_Args1...>& __tuple1, tuple<_Args2...>& __tuple2,
1588 _Index_tuple<_Indexes1...>, _Index_tuple<_Indexes2...>)
1589 : first(std::forward<_Args1>(std::get<_Indexes1>(__tuple1))...),
1590 second(std::forward<_Args2>(std::get<_Indexes2>(__tuple2))...)
1591 { }
1592
1593 /// @}
1594
1595_GLIBCXX_END_NAMESPACE_VERSION
1596} // namespace std
1597
1598#endif // C++11
1599
1600#endif // _GLIBCXX_TUPLE