Bug Summary

File:lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
Warning:line 5979, column 23
Called C++ object pointer is null

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name TypeSystemClang.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 -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -mframe-pointer=none -fmath-errno -ffp-contract=on -fno-rounding-math -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -ffunction-sections -fdata-sections -fcoverage-compilation-dir=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/build-llvm/tools/clang/stage2-bins -resource-dir /usr/lib/llvm-14/lib/clang/14.0.0 -isystem /usr/include/libxml2 -D HAVE_ROUND -D _DEBUG -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I tools/lldb/source/Plugins/TypeSystem/Clang -I /build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/lldb/source/Plugins/TypeSystem/Clang -I /build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/lldb/include -I tools/lldb/include -I include -I /build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/llvm/include -I /usr/include/python3.9 -I /build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/clang/include -I tools/lldb/../clang/include -I /build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/lldb/source -I tools/lldb/source -D _FORTIFY_SOURCE=2 -D NDEBUG -U NDEBUG -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/backward -internal-isystem /usr/lib/llvm-14/lib/clang/14.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/build-llvm/tools/clang/stage2-bins=build-llvm/tools/clang/stage2-bins -fmacro-prefix-map=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/= -fcoverage-prefix-map=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/build-llvm/tools/clang/stage2-bins=build-llvm/tools/clang/stage2-bins -fcoverage-prefix-map=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/= -O3 -Wno-unused-command-line-argument -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-maybe-uninitialized -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wno-comment -Wno-deprecated-declarations -Wno-unknown-pragmas -Wno-strict-aliasing -Wno-deprecated-register -Wno-vla-extension -std=c++14 -fdeprecated-macro -fdebug-compilation-dir=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/build-llvm/tools/clang/stage2-bins -fdebug-prefix-map=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/build-llvm/tools/clang/stage2-bins=build-llvm/tools/clang/stage2-bins -fdebug-prefix-map=/build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/= -ferror-limit 19 -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcolor-diagnostics -vectorize-loops -vectorize-slp -analyzer-output=html -analyzer-config stable-report-filename=true -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/scan-build-2022-01-25-232935-20746-1 -x c++ /build/llvm-toolchain-snapshot-14~++20220125101009+ceec4383681c/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
1//===-- TypeSystemClang.cpp -----------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "TypeSystemClang.h"
10
11#include "llvm/Support/FormatAdapters.h"
12#include "llvm/Support/FormatVariadic.h"
13
14#include <mutex>
15#include <string>
16#include <vector>
17
18#include "clang/AST/ASTContext.h"
19#include "clang/AST/ASTImporter.h"
20#include "clang/AST/Attr.h"
21#include "clang/AST/CXXInheritance.h"
22#include "clang/AST/DeclObjC.h"
23#include "clang/AST/DeclTemplate.h"
24#include "clang/AST/Mangle.h"
25#include "clang/AST/RecordLayout.h"
26#include "clang/AST/Type.h"
27#include "clang/AST/VTableBuilder.h"
28#include "clang/Basic/Builtins.h"
29#include "clang/Basic/Diagnostic.h"
30#include "clang/Basic/FileManager.h"
31#include "clang/Basic/FileSystemOptions.h"
32#include "clang/Basic/LangStandard.h"
33#include "clang/Basic/SourceManager.h"
34#include "clang/Basic/TargetInfo.h"
35#include "clang/Basic/TargetOptions.h"
36#include "clang/Frontend/FrontendOptions.h"
37#include "clang/Lex/HeaderSearch.h"
38#include "clang/Lex/HeaderSearchOptions.h"
39#include "clang/Lex/ModuleMap.h"
40#include "clang/Sema/Sema.h"
41
42#include "llvm/Support/Signals.h"
43#include "llvm/Support/Threading.h"
44
45#include "Plugins/ExpressionParser/Clang/ClangASTImporter.h"
46#include "Plugins/ExpressionParser/Clang/ClangASTMetadata.h"
47#include "Plugins/ExpressionParser/Clang/ClangExternalASTSourceCallbacks.h"
48#include "Plugins/ExpressionParser/Clang/ClangFunctionCaller.h"
49#include "Plugins/ExpressionParser/Clang/ClangPersistentVariables.h"
50#include "Plugins/ExpressionParser/Clang/ClangUserExpression.h"
51#include "Plugins/ExpressionParser/Clang/ClangUtil.h"
52#include "Plugins/ExpressionParser/Clang/ClangUtilityFunction.h"
53#include "lldb/Utility/ArchSpec.h"
54#include "lldb/Utility/Flags.h"
55
56#include "lldb/Core/DumpDataExtractor.h"
57#include "lldb/Core/Module.h"
58#include "lldb/Core/PluginManager.h"
59#include "lldb/Core/StreamFile.h"
60#include "lldb/Core/ThreadSafeDenseMap.h"
61#include "lldb/Core/UniqueCStringMap.h"
62#include "lldb/Symbol/ObjectFile.h"
63#include "lldb/Symbol/SymbolFile.h"
64#include "lldb/Target/ExecutionContext.h"
65#include "lldb/Target/Language.h"
66#include "lldb/Target/Process.h"
67#include "lldb/Target/Target.h"
68#include "lldb/Utility/DataExtractor.h"
69#include "lldb/Utility/LLDBAssert.h"
70#include "lldb/Utility/Log.h"
71#include "lldb/Utility/RegularExpression.h"
72#include "lldb/Utility/Scalar.h"
73
74#include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h"
75#include "Plugins/SymbolFile/DWARF/DWARFASTParserClang.h"
76#include "Plugins/SymbolFile/PDB/PDBASTParser.h"
77
78#include <cstdio>
79
80#include <mutex>
81
82using namespace lldb;
83using namespace lldb_private;
84using namespace clang;
85using llvm::StringSwitch;
86
87LLDB_PLUGIN_DEFINE(TypeSystemClang)namespace lldb_private { void lldb_initialize_TypeSystemClang
() { TypeSystemClang::Initialize(); } void lldb_terminate_TypeSystemClang
() { TypeSystemClang::Terminate(); } }
88
89namespace {
90static void VerifyDecl(clang::Decl *decl) {
91 assert(decl && "VerifyDecl called with nullptr?")(static_cast <bool> (decl && "VerifyDecl called with nullptr?"
) ? void (0) : __assert_fail ("decl && \"VerifyDecl called with nullptr?\""
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
91, __extension__ __PRETTY_FUNCTION__))
;
92#ifndef NDEBUG
93 // We don't care about the actual access value here but only want to trigger
94 // that Clang calls its internal Decl::AccessDeclContextCheck validation.
95 decl->getAccess();
96#endif
97}
98
99static inline bool
100TypeSystemClangSupportsLanguage(lldb::LanguageType language) {
101 return language == eLanguageTypeUnknown || // Clang is the default type system
102 lldb_private::Language::LanguageIsC(language) ||
103 lldb_private::Language::LanguageIsCPlusPlus(language) ||
104 lldb_private::Language::LanguageIsObjC(language) ||
105 lldb_private::Language::LanguageIsPascal(language) ||
106 // Use Clang for Rust until there is a proper language plugin for it
107 language == eLanguageTypeRust ||
108 language == eLanguageTypeExtRenderScript ||
109 // Use Clang for D until there is a proper language plugin for it
110 language == eLanguageTypeD ||
111 // Open Dylan compiler debug info is designed to be Clang-compatible
112 language == eLanguageTypeDylan;
113}
114
115// Checks whether m1 is an overload of m2 (as opposed to an override). This is
116// called by addOverridesForMethod to distinguish overrides (which share a
117// vtable entry) from overloads (which require distinct entries).
118bool isOverload(clang::CXXMethodDecl *m1, clang::CXXMethodDecl *m2) {
119 // FIXME: This should detect covariant return types, but currently doesn't.
120 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__, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 121)
121 "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__, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 121)
;
122 clang::ASTContext &context = m1->getASTContext();
123
124 const auto *m1Type = llvm::cast<clang::FunctionProtoType>(
125 context.getCanonicalType(m1->getType()));
126
127 const auto *m2Type = llvm::cast<clang::FunctionProtoType>(
128 context.getCanonicalType(m2->getType()));
129
130 auto compareArgTypes = [&context](const clang::QualType &m1p,
131 const clang::QualType &m2p) {
132 return context.hasSameType(m1p.getUnqualifiedType(),
133 m2p.getUnqualifiedType());
134 };
135
136 // FIXME: In C++14 and later, we can just pass m2Type->param_type_end()
137 // as a fourth parameter to std::equal().
138 return (m1->getNumParams() != m2->getNumParams()) ||
139 !std::equal(m1Type->param_type_begin(), m1Type->param_type_end(),
140 m2Type->param_type_begin(), compareArgTypes);
141}
142
143// If decl is a virtual method, walk the base classes looking for methods that
144// decl overrides. This table of overridden methods is used by IRGen to
145// determine the vtable layout for decl's parent class.
146void addOverridesForMethod(clang::CXXMethodDecl *decl) {
147 if (!decl->isVirtual())
148 return;
149
150 clang::CXXBasePaths paths;
151 llvm::SmallVector<clang::NamedDecl *, 4> decls;
152
153 auto find_overridden_methods =
154 [&decls, decl](const clang::CXXBaseSpecifier *specifier,
155 clang::CXXBasePath &path) {
156 if (auto *base_record = llvm::dyn_cast<clang::CXXRecordDecl>(
157 specifier->getType()->getAs<clang::RecordType>()->getDecl())) {
158
159 clang::DeclarationName name = decl->getDeclName();
160
161 // If this is a destructor, check whether the base class destructor is
162 // virtual.
163 if (name.getNameKind() == clang::DeclarationName::CXXDestructorName)
164 if (auto *baseDtorDecl = base_record->getDestructor()) {
165 if (baseDtorDecl->isVirtual()) {
166 decls.push_back(baseDtorDecl);
167 return true;
168 } else
169 return false;
170 }
171
172 // Otherwise, search for name in the base class.
173 for (path.Decls = base_record->lookup(name).begin();
174 path.Decls != path.Decls.end(); ++path.Decls) {
175 if (auto *method_decl =
176 llvm::dyn_cast<clang::CXXMethodDecl>(*path.Decls))
177 if (method_decl->isVirtual() && !isOverload(decl, method_decl)) {
178 decls.push_back(method_decl);
179 return true;
180 }
181 }
182 }
183
184 return false;
185 };
186
187 if (decl->getParent()->lookupInBases(find_overridden_methods, paths)) {
188 for (auto *overridden_decl : decls)
189 decl->addOverriddenMethod(
190 llvm::cast<clang::CXXMethodDecl>(overridden_decl));
191 }
192}
193}
194
195static lldb::addr_t GetVTableAddress(Process &process,
196 VTableContextBase &vtable_ctx,
197 ValueObject &valobj,
198 const ASTRecordLayout &record_layout) {
199 // Retrieve type info
200 CompilerType pointee_type;
201 CompilerType this_type(valobj.GetCompilerType());
202 uint32_t type_info = this_type.GetTypeInfo(&pointee_type);
203 if (!type_info)
204 return LLDB_INVALID_ADDRESS(18446744073709551615UL);
205
206 // Check if it's a pointer or reference
207 bool ptr_or_ref = false;
208 if (type_info & (eTypeIsPointer | eTypeIsReference)) {
209 ptr_or_ref = true;
210 type_info = pointee_type.GetTypeInfo();
211 }
212
213 // We process only C++ classes
214 const uint32_t cpp_class = eTypeIsClass | eTypeIsCPlusPlus;
215 if ((type_info & cpp_class) != cpp_class)
216 return LLDB_INVALID_ADDRESS(18446744073709551615UL);
217
218 // Calculate offset to VTable pointer
219 lldb::offset_t vbtable_ptr_offset =
220 vtable_ctx.isMicrosoft() ? record_layout.getVBPtrOffset().getQuantity()
221 : 0;
222
223 if (ptr_or_ref) {
224 // We have a pointer / ref to object, so read
225 // VTable pointer from process memory
226
227 if (valobj.GetAddressTypeOfChildren() != eAddressTypeLoad)
228 return LLDB_INVALID_ADDRESS(18446744073709551615UL);
229
230 auto vbtable_ptr_addr = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS(18446744073709551615UL));
231 if (vbtable_ptr_addr == LLDB_INVALID_ADDRESS(18446744073709551615UL))
232 return LLDB_INVALID_ADDRESS(18446744073709551615UL);
233
234 vbtable_ptr_addr += vbtable_ptr_offset;
235
236 Status err;
237 return process.ReadPointerFromMemory(vbtable_ptr_addr, err);
238 }
239
240 // We have an object already read from process memory,
241 // so just extract VTable pointer from it
242
243 DataExtractor data;
244 Status err;
245 auto size = valobj.GetData(data, err);
246 if (err.Fail() || vbtable_ptr_offset + data.GetAddressByteSize() > size)
247 return LLDB_INVALID_ADDRESS(18446744073709551615UL);
248
249 return data.GetAddress(&vbtable_ptr_offset);
250}
251
252static int64_t ReadVBaseOffsetFromVTable(Process &process,
253 VTableContextBase &vtable_ctx,
254 lldb::addr_t vtable_ptr,
255 const CXXRecordDecl *cxx_record_decl,
256 const CXXRecordDecl *base_class_decl) {
257 if (vtable_ctx.isMicrosoft()) {
258 clang::MicrosoftVTableContext &msoft_vtable_ctx =
259 static_cast<clang::MicrosoftVTableContext &>(vtable_ctx);
260
261 // Get the index into the virtual base table. The
262 // index is the index in uint32_t from vbtable_ptr
263 const unsigned vbtable_index =
264 msoft_vtable_ctx.getVBTableIndex(cxx_record_decl, base_class_decl);
265 const lldb::addr_t base_offset_addr = vtable_ptr + vbtable_index * 4;
266 Status err;
267 return process.ReadSignedIntegerFromMemory(base_offset_addr, 4, INT64_MAX(9223372036854775807L),
268 err);
269 }
270
271 clang::ItaniumVTableContext &itanium_vtable_ctx =
272 static_cast<clang::ItaniumVTableContext &>(vtable_ctx);
273
274 clang::CharUnits base_offset_offset =
275 itanium_vtable_ctx.getVirtualBaseOffsetOffset(cxx_record_decl,
276 base_class_decl);
277 const lldb::addr_t base_offset_addr =
278 vtable_ptr + base_offset_offset.getQuantity();
279 const uint32_t base_offset_size = process.GetAddressByteSize();
280 Status err;
281 return process.ReadSignedIntegerFromMemory(base_offset_addr, base_offset_size,
282 INT64_MAX(9223372036854775807L), err);
283}
284
285static bool GetVBaseBitOffset(VTableContextBase &vtable_ctx,
286 ValueObject &valobj,
287 const ASTRecordLayout &record_layout,
288 const CXXRecordDecl *cxx_record_decl,
289 const CXXRecordDecl *base_class_decl,
290 int32_t &bit_offset) {
291 ExecutionContext exe_ctx(valobj.GetExecutionContextRef());
292 Process *process = exe_ctx.GetProcessPtr();
293 if (!process)
294 return false;
295
296 lldb::addr_t vtable_ptr =
297 GetVTableAddress(*process, vtable_ctx, valobj, record_layout);
298 if (vtable_ptr == LLDB_INVALID_ADDRESS(18446744073709551615UL))
299 return false;
300
301 auto base_offset = ReadVBaseOffsetFromVTable(
302 *process, vtable_ctx, vtable_ptr, cxx_record_decl, base_class_decl);
303 if (base_offset == INT64_MAX(9223372036854775807L))
304 return false;
305
306 bit_offset = base_offset * 8;
307
308 return true;
309}
310
311typedef lldb_private::ThreadSafeDenseMap<clang::ASTContext *, TypeSystemClang *>
312 ClangASTMap;
313
314static ClangASTMap &GetASTMap() {
315 static ClangASTMap *g_map_ptr = nullptr;
316 static llvm::once_flag g_once_flag;
317 llvm::call_once(g_once_flag, []() {
318 g_map_ptr = new ClangASTMap(); // leaked on purpose to avoid spins
319 });
320 return *g_map_ptr;
321}
322
323TypePayloadClang::TypePayloadClang(OptionalClangModuleID owning_module,
324 bool is_complete_objc_class)
325 : m_payload(owning_module.GetValue()) {
326 SetIsCompleteObjCClass(is_complete_objc_class);
327}
328
329void TypePayloadClang::SetOwningModule(OptionalClangModuleID id) {
330 assert(id.GetValue() < ObjCClassBit)(static_cast <bool> (id.GetValue() < ObjCClassBit) ?
void (0) : __assert_fail ("id.GetValue() < ObjCClassBit",
"lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 330
, __extension__ __PRETTY_FUNCTION__))
;
331 bool is_complete = IsCompleteObjCClass();
332 m_payload = id.GetValue();
333 SetIsCompleteObjCClass(is_complete);
334}
335
336static void SetMemberOwningModule(clang::Decl *member,
337 const clang::Decl *parent) {
338 if (!member || !parent)
339 return;
340
341 OptionalClangModuleID id(parent->getOwningModuleID());
342 if (!id.HasValue())
343 return;
344
345 member->setFromASTFile();
346 member->setOwningModuleID(id.GetValue());
347 member->setModuleOwnershipKind(clang::Decl::ModuleOwnershipKind::Visible);
348 if (llvm::isa<clang::NamedDecl>(member))
349 if (auto *dc = llvm::dyn_cast<clang::DeclContext>(parent)) {
350 dc->setHasExternalVisibleStorage(true);
351 // This triggers ExternalASTSource::FindExternalVisibleDeclsByName() to be
352 // called when searching for members.
353 dc->setHasExternalLexicalStorage(true);
354 }
355}
356
357char TypeSystemClang::ID;
358
359bool TypeSystemClang::IsOperator(llvm::StringRef name,
360 clang::OverloadedOperatorKind &op_kind) {
361 // All operators have to start with "operator".
362 if (!name.consume_front("operator"))
363 return false;
364
365 // Remember if there was a space after "operator". This is necessary to
366 // check for collisions with strangely named functions like "operatorint()".
367 bool space_after_operator = name.consume_front(" ");
368
369 op_kind = StringSwitch<clang::OverloadedOperatorKind>(name)
370 .Case("+", clang::OO_Plus)
371 .Case("+=", clang::OO_PlusEqual)
372 .Case("++", clang::OO_PlusPlus)
373 .Case("-", clang::OO_Minus)
374 .Case("-=", clang::OO_MinusEqual)
375 .Case("--", clang::OO_MinusMinus)
376 .Case("->", clang::OO_Arrow)
377 .Case("->*", clang::OO_ArrowStar)
378 .Case("*", clang::OO_Star)
379 .Case("*=", clang::OO_StarEqual)
380 .Case("/", clang::OO_Slash)
381 .Case("/=", clang::OO_SlashEqual)
382 .Case("%", clang::OO_Percent)
383 .Case("%=", clang::OO_PercentEqual)
384 .Case("^", clang::OO_Caret)
385 .Case("^=", clang::OO_CaretEqual)
386 .Case("&", clang::OO_Amp)
387 .Case("&=", clang::OO_AmpEqual)
388 .Case("&&", clang::OO_AmpAmp)
389 .Case("|", clang::OO_Pipe)
390 .Case("|=", clang::OO_PipeEqual)
391 .Case("||", clang::OO_PipePipe)
392 .Case("~", clang::OO_Tilde)
393 .Case("!", clang::OO_Exclaim)
394 .Case("!=", clang::OO_ExclaimEqual)
395 .Case("=", clang::OO_Equal)
396 .Case("==", clang::OO_EqualEqual)
397 .Case("<", clang::OO_Less)
398 .Case("<<", clang::OO_LessLess)
399 .Case("<<=", clang::OO_LessLessEqual)
400 .Case("<=", clang::OO_LessEqual)
401 .Case(">", clang::OO_Greater)
402 .Case(">>", clang::OO_GreaterGreater)
403 .Case(">>=", clang::OO_GreaterGreaterEqual)
404 .Case(">=", clang::OO_GreaterEqual)
405 .Case("()", clang::OO_Call)
406 .Case("[]", clang::OO_Subscript)
407 .Case(",", clang::OO_Comma)
408 .Default(clang::NUM_OVERLOADED_OPERATORS);
409
410 // We found a fitting operator, so we can exit now.
411 if (op_kind != clang::NUM_OVERLOADED_OPERATORS)
412 return true;
413
414 // After the "operator " or "operator" part is something unknown. This means
415 // it's either one of the named operators (new/delete), a conversion operator
416 // (e.g. operator bool) or a function which name starts with "operator"
417 // (e.g. void operatorbool).
418
419 // If it's a function that starts with operator it can't have a space after
420 // "operator" because identifiers can't contain spaces.
421 // E.g. "operator int" (conversion operator)
422 // vs. "operatorint" (function with colliding name).
423 if (!space_after_operator)
424 return false; // not an operator.
425
426 // Now the operator is either one of the named operators or a conversion
427 // operator.
428 op_kind = StringSwitch<clang::OverloadedOperatorKind>(name)
429 .Case("new", clang::OO_New)
430 .Case("new[]", clang::OO_Array_New)
431 .Case("delete", clang::OO_Delete)
432 .Case("delete[]", clang::OO_Array_Delete)
433 // conversion operators hit this case.
434 .Default(clang::NUM_OVERLOADED_OPERATORS);
435
436 return true;
437}
438
439clang::AccessSpecifier
440TypeSystemClang::ConvertAccessTypeToAccessSpecifier(AccessType access) {
441 switch (access) {
442 default:
443 break;
444 case eAccessNone:
445 return AS_none;
446 case eAccessPublic:
447 return AS_public;
448 case eAccessPrivate:
449 return AS_private;
450 case eAccessProtected:
451 return AS_protected;
452 }
453 return AS_none;
454}
455
456static void ParseLangArgs(LangOptions &Opts, InputKind IK, const char *triple) {
457 // FIXME: Cleanup per-file based stuff.
458
459 // Set some properties which depend solely on the input kind; it would be
460 // nice to move these to the language standard, and have the driver resolve
461 // the input kind + language standard.
462 if (IK.getLanguage() == clang::Language::Asm) {
463 Opts.AsmPreprocessor = 1;
464 } else if (IK.isObjectiveC()) {
465 Opts.ObjC = 1;
466 }
467
468 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
469
470 if (LangStd == LangStandard::lang_unspecified) {
471 // Based on the base language, pick one.
472 switch (IK.getLanguage()) {
473 case clang::Language::Unknown:
474 case clang::Language::LLVM_IR:
475 case clang::Language::RenderScript:
476 llvm_unreachable("Invalid input kind!")::llvm::llvm_unreachable_internal("Invalid input kind!", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 476)
;
477 case clang::Language::OpenCL:
478 LangStd = LangStandard::lang_opencl10;
479 break;
480 case clang::Language::OpenCLCXX:
481 LangStd = LangStandard::lang_openclcpp10;
482 break;
483 case clang::Language::CUDA:
484 LangStd = LangStandard::lang_cuda;
485 break;
486 case clang::Language::Asm:
487 case clang::Language::C:
488 case clang::Language::ObjC:
489 LangStd = LangStandard::lang_gnu99;
490 break;
491 case clang::Language::CXX:
492 case clang::Language::ObjCXX:
493 LangStd = LangStandard::lang_gnucxx98;
494 break;
495 case clang::Language::HIP:
496 LangStd = LangStandard::lang_hip;
497 break;
498 }
499 }
500
501 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
502 Opts.LineComment = Std.hasLineComments();
503 Opts.C99 = Std.isC99();
504 Opts.CPlusPlus = Std.isCPlusPlus();
505 Opts.CPlusPlus11 = Std.isCPlusPlus11();
506 Opts.Digraphs = Std.hasDigraphs();
507 Opts.GNUMode = Std.isGNUMode();
508 Opts.GNUInline = !Std.isC99();
509 Opts.HexFloats = Std.hasHexFloats();
510 Opts.ImplicitInt = Std.hasImplicitInt();
511
512 Opts.WChar = true;
513
514 // OpenCL has some additional defaults.
515 if (LangStd == LangStandard::lang_opencl10) {
516 Opts.OpenCL = 1;
517 Opts.AltiVec = 1;
518 Opts.CXXOperatorNames = 1;
519 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::All);
520 }
521
522 // OpenCL and C++ both have bool, true, false keywords.
523 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
524
525 Opts.setValueVisibilityMode(DefaultVisibility);
526
527 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs is
528 // specified, or -std is set to a conforming mode.
529 Opts.Trigraphs = !Opts.GNUMode;
530 Opts.CharIsSigned = ArchSpec(triple).CharIsSignedByDefault();
531 Opts.OptimizeSize = 0;
532
533 // FIXME: Eliminate this dependency.
534 // unsigned Opt =
535 // Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags);
536 // Opts.Optimize = Opt != 0;
537 unsigned Opt = 0;
538
539 // This is the __NO_INLINE__ define, which just depends on things like the
540 // optimization level and -fno-inline, not actually whether the backend has
541 // inlining enabled.
542 //
543 // FIXME: This is affected by other options (-fno-inline).
544 Opts.NoInlineDefine = !Opt;
545
546 // This is needed to allocate the extra space for the owning module
547 // on each decl.
548 Opts.ModulesLocalVisibility = 1;
549}
550
551TypeSystemClang::TypeSystemClang(llvm::StringRef name,
552 llvm::Triple target_triple) {
553 m_display_name = name.str();
554 if (!target_triple.str().empty())
555 SetTargetTriple(target_triple.str());
556 // The caller didn't pass an ASTContext so create a new one for this
557 // TypeSystemClang.
558 CreateASTContext();
559}
560
561TypeSystemClang::TypeSystemClang(llvm::StringRef name,
562 ASTContext &existing_ctxt) {
563 m_display_name = name.str();
564 SetTargetTriple(existing_ctxt.getTargetInfo().getTriple().str());
565
566 m_ast_up.reset(&existing_ctxt);
567 GetASTMap().Insert(&existing_ctxt, this);
568}
569
570// Destructor
571TypeSystemClang::~TypeSystemClang() { Finalize(); }
572
573lldb::TypeSystemSP TypeSystemClang::CreateInstance(lldb::LanguageType language,
574 lldb_private::Module *module,
575 Target *target) {
576 if (!TypeSystemClangSupportsLanguage(language))
577 return lldb::TypeSystemSP();
578 ArchSpec arch;
579 if (module)
580 arch = module->GetArchitecture();
581 else if (target)
582 arch = target->GetArchitecture();
583
584 if (!arch.IsValid())
585 return lldb::TypeSystemSP();
586
587 llvm::Triple triple = arch.GetTriple();
588 // LLVM wants this to be set to iOS or MacOSX; if we're working on
589 // a bare-boards type image, change the triple for llvm's benefit.
590 if (triple.getVendor() == llvm::Triple::Apple &&
591 triple.getOS() == llvm::Triple::UnknownOS) {
592 if (triple.getArch() == llvm::Triple::arm ||
593 triple.getArch() == llvm::Triple::aarch64 ||
594 triple.getArch() == llvm::Triple::aarch64_32 ||
595 triple.getArch() == llvm::Triple::thumb) {
596 triple.setOS(llvm::Triple::IOS);
597 } else {
598 triple.setOS(llvm::Triple::MacOSX);
599 }
600 }
601
602 if (module) {
603 std::string ast_name =
604 "ASTContext for '" + module->GetFileSpec().GetPath() + "'";
605 return std::make_shared<TypeSystemClang>(ast_name, triple);
606 } else if (target && target->IsValid())
607 return std::make_shared<ScratchTypeSystemClang>(*target, triple);
608 return lldb::TypeSystemSP();
609}
610
611LanguageSet TypeSystemClang::GetSupportedLanguagesForTypes() {
612 LanguageSet languages;
613 languages.Insert(lldb::eLanguageTypeC89);
614 languages.Insert(lldb::eLanguageTypeC);
615 languages.Insert(lldb::eLanguageTypeC11);
616 languages.Insert(lldb::eLanguageTypeC_plus_plus);
617 languages.Insert(lldb::eLanguageTypeC99);
618 languages.Insert(lldb::eLanguageTypeObjC);
619 languages.Insert(lldb::eLanguageTypeObjC_plus_plus);
620 languages.Insert(lldb::eLanguageTypeC_plus_plus_03);
621 languages.Insert(lldb::eLanguageTypeC_plus_plus_11);
622 languages.Insert(lldb::eLanguageTypeC11);
623 languages.Insert(lldb::eLanguageTypeC_plus_plus_14);
624 return languages;
625}
626
627LanguageSet TypeSystemClang::GetSupportedLanguagesForExpressions() {
628 LanguageSet languages;
629 languages.Insert(lldb::eLanguageTypeC_plus_plus);
630 languages.Insert(lldb::eLanguageTypeObjC_plus_plus);
631 languages.Insert(lldb::eLanguageTypeC_plus_plus_03);
632 languages.Insert(lldb::eLanguageTypeC_plus_plus_11);
633 languages.Insert(lldb::eLanguageTypeC_plus_plus_14);
634 return languages;
635}
636
637void TypeSystemClang::Initialize() {
638 PluginManager::RegisterPlugin(
639 GetPluginNameStatic(), "clang base AST context plug-in", CreateInstance,
640 GetSupportedLanguagesForTypes(), GetSupportedLanguagesForExpressions());
641}
642
643void TypeSystemClang::Terminate() {
644 PluginManager::UnregisterPlugin(CreateInstance);
645}
646
647void TypeSystemClang::Finalize() {
648 assert(m_ast_up)(static_cast <bool> (m_ast_up) ? void (0) : __assert_fail
("m_ast_up", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 648, __extension__ __PRETTY_FUNCTION__))
;
649 GetASTMap().Erase(m_ast_up.get());
650 if (!m_ast_owned)
651 m_ast_up.release();
652
653 m_builtins_up.reset();
654 m_selector_table_up.reset();
655 m_identifier_table_up.reset();
656 m_target_info_up.reset();
657 m_target_options_rp.reset();
658 m_diagnostics_engine_up.reset();
659 m_source_manager_up.reset();
660 m_language_options_up.reset();
661}
662
663void TypeSystemClang::setSema(Sema *s) {
664 // Ensure that the new sema actually belongs to our ASTContext.
665 assert(s == nullptr || &s->getASTContext() == m_ast_up.get())(static_cast <bool> (s == nullptr || &s->getASTContext
() == m_ast_up.get()) ? void (0) : __assert_fail ("s == nullptr || &s->getASTContext() == m_ast_up.get()"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
665, __extension__ __PRETTY_FUNCTION__))
;
666 m_sema = s;
667}
668
669const char *TypeSystemClang::GetTargetTriple() {
670 return m_target_triple.c_str();
671}
672
673void TypeSystemClang::SetTargetTriple(llvm::StringRef target_triple) {
674 m_target_triple = target_triple.str();
675}
676
677void TypeSystemClang::SetExternalSource(
678 llvm::IntrusiveRefCntPtr<ExternalASTSource> &ast_source_up) {
679 ASTContext &ast = getASTContext();
680 ast.getTranslationUnitDecl()->setHasExternalLexicalStorage(true);
681 ast.setExternalSource(ast_source_up);
682}
683
684ASTContext &TypeSystemClang::getASTContext() {
685 assert(m_ast_up)(static_cast <bool> (m_ast_up) ? void (0) : __assert_fail
("m_ast_up", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 685, __extension__ __PRETTY_FUNCTION__))
;
686 return *m_ast_up;
687}
688
689class NullDiagnosticConsumer : public DiagnosticConsumer {
690public:
691 NullDiagnosticConsumer() {
692 m_log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS::lldb_private::LLDBLog::Expressions);
693 }
694
695 void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel,
696 const clang::Diagnostic &info) override {
697 if (m_log) {
698 llvm::SmallVector<char, 32> diag_str(10);
699 info.FormatDiagnostic(diag_str);
700 diag_str.push_back('\0');
701 LLDB_LOGF(m_log, "Compiler diagnostic: %s\n", diag_str.data())do { ::lldb_private::Log *log_private = (m_log); if (log_private
) log_private->Printf("Compiler diagnostic: %s\n", diag_str
.data()); } while (0)
;
702 }
703 }
704
705 DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const {
706 return new NullDiagnosticConsumer();
707 }
708
709private:
710 Log *m_log;
711};
712
713void TypeSystemClang::CreateASTContext() {
714 assert(!m_ast_up)(static_cast <bool> (!m_ast_up) ? void (0) : __assert_fail
("!m_ast_up", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 714, __extension__ __PRETTY_FUNCTION__))
;
715 m_ast_owned = true;
716
717 m_language_options_up = std::make_unique<LangOptions>();
718 ParseLangArgs(*m_language_options_up, clang::Language::ObjCXX,
719 GetTargetTriple());
720
721 m_identifier_table_up =
722 std::make_unique<IdentifierTable>(*m_language_options_up, nullptr);
723 m_builtins_up = std::make_unique<Builtin::Context>();
724
725 m_selector_table_up = std::make_unique<SelectorTable>();
726
727 clang::FileSystemOptions file_system_options;
728 m_file_manager_up = std::make_unique<clang::FileManager>(
729 file_system_options, FileSystem::Instance().GetVirtualFileSystem());
730
731 llvm::IntrusiveRefCntPtr<DiagnosticIDs> diag_id_sp(new DiagnosticIDs());
732 m_diagnostics_engine_up =
733 std::make_unique<DiagnosticsEngine>(diag_id_sp, new DiagnosticOptions());
734
735 m_source_manager_up = std::make_unique<clang::SourceManager>(
736 *m_diagnostics_engine_up, *m_file_manager_up);
737 m_ast_up = std::make_unique<ASTContext>(
738 *m_language_options_up, *m_source_manager_up, *m_identifier_table_up,
739 *m_selector_table_up, *m_builtins_up, TU_Complete);
740
741 m_diagnostic_consumer_up = std::make_unique<NullDiagnosticConsumer>();
742 m_ast_up->getDiagnostics().setClient(m_diagnostic_consumer_up.get(), false);
743
744 // This can be NULL if we don't know anything about the architecture or if
745 // the target for an architecture isn't enabled in the llvm/clang that we
746 // built
747 TargetInfo *target_info = getTargetInfo();
748 if (target_info)
749 m_ast_up->InitBuiltinTypes(*target_info);
750
751 GetASTMap().Insert(m_ast_up.get(), this);
752
753 llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_up(
754 new ClangExternalASTSourceCallbacks(*this));
755 SetExternalSource(ast_source_up);
756}
757
758TypeSystemClang *TypeSystemClang::GetASTContext(clang::ASTContext *ast) {
759 TypeSystemClang *clang_ast = GetASTMap().Lookup(ast);
760 return clang_ast;
761}
762
763clang::MangleContext *TypeSystemClang::getMangleContext() {
764 if (m_mangle_ctx_up == nullptr)
765 m_mangle_ctx_up.reset(getASTContext().createMangleContext());
766 return m_mangle_ctx_up.get();
767}
768
769std::shared_ptr<clang::TargetOptions> &TypeSystemClang::getTargetOptions() {
770 if (m_target_options_rp == nullptr && !m_target_triple.empty()) {
771 m_target_options_rp = std::make_shared<clang::TargetOptions>();
772 if (m_target_options_rp != nullptr)
773 m_target_options_rp->Triple = m_target_triple;
774 }
775 return m_target_options_rp;
776}
777
778TargetInfo *TypeSystemClang::getTargetInfo() {
779 // target_triple should be something like "x86_64-apple-macosx"
780 if (m_target_info_up == nullptr && !m_target_triple.empty())
781 m_target_info_up.reset(TargetInfo::CreateTargetInfo(
782 getASTContext().getDiagnostics(), getTargetOptions()));
783 return m_target_info_up.get();
784}
785
786#pragma mark Basic Types
787
788static inline bool QualTypeMatchesBitSize(const uint64_t bit_size,
789 ASTContext &ast, QualType qual_type) {
790 uint64_t qual_type_bit_size = ast.getTypeSize(qual_type);
791 return qual_type_bit_size == bit_size;
792}
793
794CompilerType
795TypeSystemClang::GetBuiltinTypeForEncodingAndBitSize(Encoding encoding,
796 size_t bit_size) {
797 ASTContext &ast = getASTContext();
798 switch (encoding) {
799 case eEncodingInvalid:
800 if (QualTypeMatchesBitSize(bit_size, ast, ast.VoidPtrTy))
801 return GetType(ast.VoidPtrTy);
802 break;
803
804 case eEncodingUint:
805 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy))
806 return GetType(ast.UnsignedCharTy);
807 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy))
808 return GetType(ast.UnsignedShortTy);
809 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy))
810 return GetType(ast.UnsignedIntTy);
811 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy))
812 return GetType(ast.UnsignedLongTy);
813 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy))
814 return GetType(ast.UnsignedLongLongTy);
815 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty))
816 return GetType(ast.UnsignedInt128Ty);
817 break;
818
819 case eEncodingSint:
820 if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy))
821 return GetType(ast.SignedCharTy);
822 if (QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy))
823 return GetType(ast.ShortTy);
824 if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy))
825 return GetType(ast.IntTy);
826 if (QualTypeMatchesBitSize(bit_size, ast, ast.LongTy))
827 return GetType(ast.LongTy);
828 if (QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy))
829 return GetType(ast.LongLongTy);
830 if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty))
831 return GetType(ast.Int128Ty);
832 break;
833
834 case eEncodingIEEE754:
835 if (QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy))
836 return GetType(ast.FloatTy);
837 if (QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy))
838 return GetType(ast.DoubleTy);
839 if (QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy))
840 return GetType(ast.LongDoubleTy);
841 if (QualTypeMatchesBitSize(bit_size, ast, ast.HalfTy))
842 return GetType(ast.HalfTy);
843 break;
844
845 case eEncodingVector:
846 // Sanity check that bit_size is a multiple of 8's.
847 if (bit_size && !(bit_size & 0x7u))
848 return GetType(ast.getExtVectorType(ast.UnsignedCharTy, bit_size / 8));
849 break;
850 }
851
852 return CompilerType();
853}
854
855lldb::BasicType
856TypeSystemClang::GetBasicTypeEnumeration(ConstString name) {
857 if (name) {
858 typedef UniqueCStringMap<lldb::BasicType> TypeNameToBasicTypeMap;
859 static TypeNameToBasicTypeMap g_type_map;
860 static llvm::once_flag g_once_flag;
861 llvm::call_once(g_once_flag, []() {
862 // "void"
863 g_type_map.Append(ConstString("void"), eBasicTypeVoid);
864
865 // "char"
866 g_type_map.Append(ConstString("char"), eBasicTypeChar);
867 g_type_map.Append(ConstString("signed char"), eBasicTypeSignedChar);
868 g_type_map.Append(ConstString("unsigned char"), eBasicTypeUnsignedChar);
869 g_type_map.Append(ConstString("wchar_t"), eBasicTypeWChar);
870 g_type_map.Append(ConstString("signed wchar_t"), eBasicTypeSignedWChar);
871 g_type_map.Append(ConstString("unsigned wchar_t"),
872 eBasicTypeUnsignedWChar);
873 // "short"
874 g_type_map.Append(ConstString("short"), eBasicTypeShort);
875 g_type_map.Append(ConstString("short int"), eBasicTypeShort);
876 g_type_map.Append(ConstString("unsigned short"), eBasicTypeUnsignedShort);
877 g_type_map.Append(ConstString("unsigned short int"),
878 eBasicTypeUnsignedShort);
879
880 // "int"
881 g_type_map.Append(ConstString("int"), eBasicTypeInt);
882 g_type_map.Append(ConstString("signed int"), eBasicTypeInt);
883 g_type_map.Append(ConstString("unsigned int"), eBasicTypeUnsignedInt);
884 g_type_map.Append(ConstString("unsigned"), eBasicTypeUnsignedInt);
885
886 // "long"
887 g_type_map.Append(ConstString("long"), eBasicTypeLong);
888 g_type_map.Append(ConstString("long int"), eBasicTypeLong);
889 g_type_map.Append(ConstString("unsigned long"), eBasicTypeUnsignedLong);
890 g_type_map.Append(ConstString("unsigned long int"),
891 eBasicTypeUnsignedLong);
892
893 // "long long"
894 g_type_map.Append(ConstString("long long"), eBasicTypeLongLong);
895 g_type_map.Append(ConstString("long long int"), eBasicTypeLongLong);
896 g_type_map.Append(ConstString("unsigned long long"),
897 eBasicTypeUnsignedLongLong);
898 g_type_map.Append(ConstString("unsigned long long int"),
899 eBasicTypeUnsignedLongLong);
900
901 // "int128"
902 g_type_map.Append(ConstString("__int128_t"), eBasicTypeInt128);
903 g_type_map.Append(ConstString("__uint128_t"), eBasicTypeUnsignedInt128);
904
905 // Miscellaneous
906 g_type_map.Append(ConstString("bool"), eBasicTypeBool);
907 g_type_map.Append(ConstString("float"), eBasicTypeFloat);
908 g_type_map.Append(ConstString("double"), eBasicTypeDouble);
909 g_type_map.Append(ConstString("long double"), eBasicTypeLongDouble);
910 g_type_map.Append(ConstString("id"), eBasicTypeObjCID);
911 g_type_map.Append(ConstString("SEL"), eBasicTypeObjCSel);
912 g_type_map.Append(ConstString("nullptr"), eBasicTypeNullPtr);
913 g_type_map.Sort();
914 });
915
916 return g_type_map.Find(name, eBasicTypeInvalid);
917 }
918 return eBasicTypeInvalid;
919}
920
921uint32_t TypeSystemClang::GetPointerByteSize() {
922 if (m_pointer_byte_size == 0)
923 if (auto size = GetBasicType(lldb::eBasicTypeVoid)
924 .GetPointerType()
925 .GetByteSize(nullptr))
926 m_pointer_byte_size = *size;
927 return m_pointer_byte_size;
928}
929
930CompilerType TypeSystemClang::GetBasicType(lldb::BasicType basic_type) {
931 clang::ASTContext &ast = getASTContext();
932
933 lldb::opaque_compiler_type_t clang_type =
934 GetOpaqueCompilerType(&ast, basic_type);
935
936 if (clang_type)
937 return CompilerType(this, clang_type);
938 return CompilerType();
939}
940
941CompilerType TypeSystemClang::GetBuiltinTypeForDWARFEncodingAndBitSize(
942 llvm::StringRef type_name, uint32_t dw_ate, uint32_t bit_size) {
943 ASTContext &ast = getASTContext();
944
945 switch (dw_ate) {
946 default:
947 break;
948
949 case DW_ATE_address:
950 if (QualTypeMatchesBitSize(bit_size, ast, ast.VoidPtrTy))
951 return GetType(ast.VoidPtrTy);
952 break;
953
954 case DW_ATE_boolean:
955 if (QualTypeMatchesBitSize(bit_size, ast, ast.BoolTy))
956 return GetType(ast.BoolTy);
957 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy))
958 return GetType(ast.UnsignedCharTy);
959 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy))
960 return GetType(ast.UnsignedShortTy);
961 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy))
962 return GetType(ast.UnsignedIntTy);
963 break;
964
965 case DW_ATE_lo_user:
966 // This has been seen to mean DW_AT_complex_integer
967 if (type_name.contains("complex")) {
968 CompilerType complex_int_clang_type =
969 GetBuiltinTypeForDWARFEncodingAndBitSize("int", DW_ATE_signed,
970 bit_size / 2);
971 return GetType(
972 ast.getComplexType(ClangUtil::GetQualType(complex_int_clang_type)));
973 }
974 break;
975
976 case DW_ATE_complex_float: {
977 CanQualType FloatComplexTy = ast.getComplexType(ast.FloatTy);
978 if (QualTypeMatchesBitSize(bit_size, ast, FloatComplexTy))
979 return GetType(FloatComplexTy);
980
981 CanQualType DoubleComplexTy = ast.getComplexType(ast.DoubleTy);
982 if (QualTypeMatchesBitSize(bit_size, ast, DoubleComplexTy))
983 return GetType(DoubleComplexTy);
984
985 CanQualType LongDoubleComplexTy = ast.getComplexType(ast.LongDoubleTy);
986 if (QualTypeMatchesBitSize(bit_size, ast, LongDoubleComplexTy))
987 return GetType(LongDoubleComplexTy);
988
989 CompilerType complex_float_clang_type =
990 GetBuiltinTypeForDWARFEncodingAndBitSize("float", DW_ATE_float,
991 bit_size / 2);
992 return GetType(
993 ast.getComplexType(ClangUtil::GetQualType(complex_float_clang_type)));
994 }
995
996 case DW_ATE_float:
997 if (type_name == "float" &&
998 QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy))
999 return GetType(ast.FloatTy);
1000 if (type_name == "double" &&
1001 QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy))
1002 return GetType(ast.DoubleTy);
1003 if (type_name == "long double" &&
1004 QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy))
1005 return GetType(ast.LongDoubleTy);
1006 // Fall back to not requiring a name match
1007 if (QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy))
1008 return GetType(ast.FloatTy);
1009 if (QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy))
1010 return GetType(ast.DoubleTy);
1011 if (QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy))
1012 return GetType(ast.LongDoubleTy);
1013 if (QualTypeMatchesBitSize(bit_size, ast, ast.HalfTy))
1014 return GetType(ast.HalfTy);
1015 break;
1016
1017 case DW_ATE_signed:
1018 if (!type_name.empty()) {
1019 if (type_name == "wchar_t" &&
1020 QualTypeMatchesBitSize(bit_size, ast, ast.WCharTy) &&
1021 (getTargetInfo() &&
1022 TargetInfo::isTypeSigned(getTargetInfo()->getWCharType())))
1023 return GetType(ast.WCharTy);
1024 if (type_name == "void" &&
1025 QualTypeMatchesBitSize(bit_size, ast, ast.VoidTy))
1026 return GetType(ast.VoidTy);
1027 if (type_name.contains("long long") &&
1028 QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy))
1029 return GetType(ast.LongLongTy);
1030 if (type_name.contains("long") &&
1031 QualTypeMatchesBitSize(bit_size, ast, ast.LongTy))
1032 return GetType(ast.LongTy);
1033 if (type_name.contains("short") &&
1034 QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy))
1035 return GetType(ast.ShortTy);
1036 if (type_name.contains("char")) {
1037 if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy))
1038 return GetType(ast.CharTy);
1039 if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy))
1040 return GetType(ast.SignedCharTy);
1041 }
1042 if (type_name.contains("int")) {
1043 if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy))
1044 return GetType(ast.IntTy);
1045 if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty))
1046 return GetType(ast.Int128Ty);
1047 }
1048 }
1049 // We weren't able to match up a type name, just search by size
1050 if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy))
1051 return GetType(ast.CharTy);
1052 if (QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy))
1053 return GetType(ast.ShortTy);
1054 if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy))
1055 return GetType(ast.IntTy);
1056 if (QualTypeMatchesBitSize(bit_size, ast, ast.LongTy))
1057 return GetType(ast.LongTy);
1058 if (QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy))
1059 return GetType(ast.LongLongTy);
1060 if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty))
1061 return GetType(ast.Int128Ty);
1062 break;
1063
1064 case DW_ATE_signed_char:
1065 if (ast.getLangOpts().CharIsSigned && type_name == "char") {
1066 if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy))
1067 return GetType(ast.CharTy);
1068 }
1069 if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy))
1070 return GetType(ast.SignedCharTy);
1071 break;
1072
1073 case DW_ATE_unsigned:
1074 if (!type_name.empty()) {
1075 if (type_name == "wchar_t") {
1076 if (QualTypeMatchesBitSize(bit_size, ast, ast.WCharTy)) {
1077 if (!(getTargetInfo() &&
1078 TargetInfo::isTypeSigned(getTargetInfo()->getWCharType())))
1079 return GetType(ast.WCharTy);
1080 }
1081 }
1082 if (type_name.contains("long long")) {
1083 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy))
1084 return GetType(ast.UnsignedLongLongTy);
1085 } else if (type_name.contains("long")) {
1086 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy))
1087 return GetType(ast.UnsignedLongTy);
1088 } else if (type_name.contains("short")) {
1089 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy))
1090 return GetType(ast.UnsignedShortTy);
1091 } else if (type_name.contains("char")) {
1092 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy))
1093 return GetType(ast.UnsignedCharTy);
1094 } else if (type_name.contains("int")) {
1095 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy))
1096 return GetType(ast.UnsignedIntTy);
1097 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty))
1098 return GetType(ast.UnsignedInt128Ty);
1099 }
1100 }
1101 // We weren't able to match up a type name, just search by size
1102 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy))
1103 return GetType(ast.UnsignedCharTy);
1104 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy))
1105 return GetType(ast.UnsignedShortTy);
1106 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy))
1107 return GetType(ast.UnsignedIntTy);
1108 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy))
1109 return GetType(ast.UnsignedLongTy);
1110 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy))
1111 return GetType(ast.UnsignedLongLongTy);
1112 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty))
1113 return GetType(ast.UnsignedInt128Ty);
1114 break;
1115
1116 case DW_ATE_unsigned_char:
1117 if (!ast.getLangOpts().CharIsSigned && type_name == "char") {
1118 if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy))
1119 return GetType(ast.CharTy);
1120 }
1121 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy))
1122 return GetType(ast.UnsignedCharTy);
1123 if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy))
1124 return GetType(ast.UnsignedShortTy);
1125 break;
1126
1127 case DW_ATE_imaginary_float:
1128 break;
1129
1130 case DW_ATE_UTF:
1131 switch (bit_size) {
1132 case 8:
1133 return GetType(ast.Char8Ty);
1134 case 16:
1135 return GetType(ast.Char16Ty);
1136 case 32:
1137 return GetType(ast.Char32Ty);
1138 default:
1139 if (!type_name.empty()) {
1140 if (type_name == "char16_t")
1141 return GetType(ast.Char16Ty);
1142 if (type_name == "char32_t")
1143 return GetType(ast.Char32Ty);
1144 if (type_name == "char8_t")
1145 return GetType(ast.Char8Ty);
1146 }
1147 }
1148 break;
1149 }
1150
1151 Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_TYPES::lldb_private::LLDBLog::Types);
1152 LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "error: need to add support for DW_TAG_base_type '{0}' "
"encoded with DW_ATE = {1:x}, bit_size = {2}", type_name, dw_ate
, bit_size); } while (0)
1153 "error: need to add support for DW_TAG_base_type '{0}' "do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "error: need to add support for DW_TAG_base_type '{0}' "
"encoded with DW_ATE = {1:x}, bit_size = {2}", type_name, dw_ate
, bit_size); } while (0)
1154 "encoded with DW_ATE = {1:x}, bit_size = {2}",do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "error: need to add support for DW_TAG_base_type '{0}' "
"encoded with DW_ATE = {1:x}, bit_size = {2}", type_name, dw_ate
, bit_size); } while (0)
1155 type_name, dw_ate, bit_size)do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "error: need to add support for DW_TAG_base_type '{0}' "
"encoded with DW_ATE = {1:x}, bit_size = {2}", type_name, dw_ate
, bit_size); } while (0)
;
1156 return CompilerType();
1157}
1158
1159CompilerType TypeSystemClang::GetCStringType(bool is_const) {
1160 ASTContext &ast = getASTContext();
1161 QualType char_type(ast.CharTy);
1162
1163 if (is_const)
1164 char_type.addConst();
1165
1166 return GetType(ast.getPointerType(char_type));
1167}
1168
1169bool TypeSystemClang::AreTypesSame(CompilerType type1, CompilerType type2,
1170 bool ignore_qualifiers) {
1171 TypeSystemClang *ast =
1172 llvm::dyn_cast_or_null<TypeSystemClang>(type1.GetTypeSystem());
1173 if (!ast || ast != type2.GetTypeSystem())
1174 return false;
1175
1176 if (type1.GetOpaqueQualType() == type2.GetOpaqueQualType())
1177 return true;
1178
1179 QualType type1_qual = ClangUtil::GetQualType(type1);
1180 QualType type2_qual = ClangUtil::GetQualType(type2);
1181
1182 if (ignore_qualifiers) {
1183 type1_qual = type1_qual.getUnqualifiedType();
1184 type2_qual = type2_qual.getUnqualifiedType();
1185 }
1186
1187 return ast->getASTContext().hasSameType(type1_qual, type2_qual);
1188}
1189
1190CompilerType TypeSystemClang::GetTypeForDecl(void *opaque_decl) {
1191 if (!opaque_decl)
1192 return CompilerType();
1193
1194 clang::Decl *decl = static_cast<clang::Decl *>(opaque_decl);
1195 if (auto *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl))
1196 return GetTypeForDecl(named_decl);
1197 return CompilerType();
1198}
1199
1200CompilerDeclContext TypeSystemClang::CreateDeclContext(DeclContext *ctx) {
1201 // Check that the DeclContext actually belongs to this ASTContext.
1202 assert(&ctx->getParentASTContext() == &getASTContext())(static_cast <bool> (&ctx->getParentASTContext()
== &getASTContext()) ? void (0) : __assert_fail ("&ctx->getParentASTContext() == &getASTContext()"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
1202, __extension__ __PRETTY_FUNCTION__))
;
1203 return CompilerDeclContext(this, ctx);
1204}
1205
1206CompilerType TypeSystemClang::GetTypeForDecl(clang::NamedDecl *decl) {
1207 if (clang::ObjCInterfaceDecl *interface_decl =
1208 llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl))
1209 return GetTypeForDecl(interface_decl);
1210 if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl))
1211 return GetTypeForDecl(tag_decl);
1212 return CompilerType();
1213}
1214
1215CompilerType TypeSystemClang::GetTypeForDecl(TagDecl *decl) {
1216 return GetType(getASTContext().getTagDeclType(decl));
1217}
1218
1219CompilerType TypeSystemClang::GetTypeForDecl(ObjCInterfaceDecl *decl) {
1220 return GetType(getASTContext().getObjCInterfaceType(decl));
1221}
1222
1223#pragma mark Structure, Unions, Classes
1224
1225void TypeSystemClang::SetOwningModule(clang::Decl *decl,
1226 OptionalClangModuleID owning_module) {
1227 if (!decl || !owning_module.HasValue())
1228 return;
1229
1230 decl->setFromASTFile();
1231 decl->setOwningModuleID(owning_module.GetValue());
1232 decl->setModuleOwnershipKind(clang::Decl::ModuleOwnershipKind::Visible);
1233}
1234
1235OptionalClangModuleID
1236TypeSystemClang::GetOrCreateClangModule(llvm::StringRef name,
1237 OptionalClangModuleID parent,
1238 bool is_framework, bool is_explicit) {
1239 // Get the external AST source which holds the modules.
1240 auto *ast_source = llvm::dyn_cast_or_null<ClangExternalASTSourceCallbacks>(
1241 getASTContext().getExternalSource());
1242 assert(ast_source && "external ast source was lost")(static_cast <bool> (ast_source && "external ast source was lost"
) ? void (0) : __assert_fail ("ast_source && \"external ast source was lost\""
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
1242, __extension__ __PRETTY_FUNCTION__))
;
1243 if (!ast_source)
1244 return {};
1245
1246 // Lazily initialize the module map.
1247 if (!m_header_search_up) {
1248 auto HSOpts = std::make_shared<clang::HeaderSearchOptions>();
1249 m_header_search_up = std::make_unique<clang::HeaderSearch>(
1250 HSOpts, *m_source_manager_up, *m_diagnostics_engine_up,
1251 *m_language_options_up, m_target_info_up.get());
1252 m_module_map_up = std::make_unique<clang::ModuleMap>(
1253 *m_source_manager_up, *m_diagnostics_engine_up, *m_language_options_up,
1254 m_target_info_up.get(), *m_header_search_up);
1255 }
1256
1257 // Get or create the module context.
1258 bool created;
1259 clang::Module *module;
1260 auto parent_desc = ast_source->getSourceDescriptor(parent.GetValue());
1261 std::tie(module, created) = m_module_map_up->findOrCreateModule(
1262 name, parent_desc ? parent_desc->getModuleOrNull() : nullptr,
1263 is_framework, is_explicit);
1264 if (!created)
1265 return ast_source->GetIDForModule(module);
1266
1267 return ast_source->RegisterModule(module);
1268}
1269
1270CompilerType TypeSystemClang::CreateRecordType(
1271 clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module,
1272 AccessType access_type, llvm::StringRef name, int kind,
1273 LanguageType language, ClangASTMetadata *metadata, bool exports_symbols) {
1274 ASTContext &ast = getASTContext();
1275
1276 if (decl_ctx == nullptr)
1277 decl_ctx = ast.getTranslationUnitDecl();
1278
1279 if (language == eLanguageTypeObjC ||
1280 language == eLanguageTypeObjC_plus_plus) {
1281 bool isForwardDecl = true;
1282 bool isInternal = false;
1283 return CreateObjCClass(name, decl_ctx, owning_module, isForwardDecl,
1284 isInternal, metadata);
1285 }
1286
1287 // NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and
1288 // we will need to update this code. I was told to currently always use the
1289 // CXXRecordDecl class since we often don't know from debug information if
1290 // something is struct or a class, so we default to always use the more
1291 // complete definition just in case.
1292
1293 bool has_name = !name.empty();
1294 CXXRecordDecl *decl = CXXRecordDecl::CreateDeserialized(ast, 0);
1295 decl->setTagKind(static_cast<TagDecl::TagKind>(kind));
1296 decl->setDeclContext(decl_ctx);
1297 if (has_name)
1298 decl->setDeclName(&ast.Idents.get(name));
1299 SetOwningModule(decl, owning_module);
1300
1301 if (!has_name) {
1302 // In C++ a lambda is also represented as an unnamed class. This is
1303 // different from an *anonymous class* that the user wrote:
1304 //
1305 // struct A {
1306 // // anonymous class (GNU/MSVC extension)
1307 // struct {
1308 // int x;
1309 // };
1310 // // unnamed class within a class
1311 // struct {
1312 // int y;
1313 // } B;
1314 // };
1315 //
1316 // void f() {
1317 // // unammed class outside of a class
1318 // struct {
1319 // int z;
1320 // } C;
1321 // }
1322 //
1323 // Anonymous classes is a GNU/MSVC extension that clang supports. It
1324 // requires the anonymous class be embedded within a class. So the new
1325 // heuristic verifies this condition.
1326 if (isa<CXXRecordDecl>(decl_ctx) && exports_symbols)
1327 decl->setAnonymousStructOrUnion(true);
1328 }
1329
1330 if (metadata)
1331 SetMetadata(decl, *metadata);
1332
1333 if (access_type != eAccessNone)
1334 decl->setAccess(ConvertAccessTypeToAccessSpecifier(access_type));
1335
1336 if (decl_ctx)
1337 decl_ctx->addDecl(decl);
1338
1339 return GetType(ast.getTagDeclType(decl));
1340}
1341
1342namespace {
1343/// Returns true iff the given TemplateArgument should be represented as an
1344/// NonTypeTemplateParmDecl in the AST.
1345bool IsValueParam(const clang::TemplateArgument &argument) {
1346 return argument.getKind() == TemplateArgument::Integral;
1347}
1348
1349void AddAccessSpecifierDecl(clang::CXXRecordDecl *cxx_record_decl,
1350 ASTContext &ct,
1351 clang::AccessSpecifier previous_access,
1352 clang::AccessSpecifier access_specifier) {
1353 if (!cxx_record_decl->isClass() && !cxx_record_decl->isStruct())
1354 return;
1355 if (previous_access != access_specifier) {
1356 // For struct, don't add AS_public if it's the first AccessSpecDecl.
1357 // For class, don't add AS_private if it's the first AccessSpecDecl.
1358 if ((cxx_record_decl->isStruct() &&
1359 previous_access == clang::AccessSpecifier::AS_none &&
1360 access_specifier == clang::AccessSpecifier::AS_public) ||
1361 (cxx_record_decl->isClass() &&
1362 previous_access == clang::AccessSpecifier::AS_none &&
1363 access_specifier == clang::AccessSpecifier::AS_private)) {
1364 return;
1365 }
1366 cxx_record_decl->addDecl(
1367 AccessSpecDecl::Create(ct, access_specifier, cxx_record_decl,
1368 SourceLocation(), SourceLocation()));
1369 }
1370}
1371} // namespace
1372
1373static TemplateParameterList *CreateTemplateParameterList(
1374 ASTContext &ast,
1375 const TypeSystemClang::TemplateParameterInfos &template_param_infos,
1376 llvm::SmallVector<NamedDecl *, 8> &template_param_decls) {
1377 const bool parameter_pack = false;
1378 const bool is_typename = false;
1379 const unsigned depth = 0;
1380 const size_t num_template_params = template_param_infos.args.size();
1381 DeclContext *const decl_context =
1382 ast.getTranslationUnitDecl(); // Is this the right decl context?,
1383 for (size_t i = 0; i < num_template_params; ++i) {
1384 const char *name = template_param_infos.names[i];
1385
1386 IdentifierInfo *identifier_info = nullptr;
1387 if (name && name[0])
1388 identifier_info = &ast.Idents.get(name);
1389 if (IsValueParam(template_param_infos.args[i])) {
1390 QualType template_param_type =
1391 template_param_infos.args[i].getIntegralType();
1392 template_param_decls.push_back(NonTypeTemplateParmDecl::Create(
1393 ast, decl_context, SourceLocation(), SourceLocation(), depth, i,
1394 identifier_info, template_param_type, parameter_pack,
1395 ast.getTrivialTypeSourceInfo(template_param_type)));
1396 } else {
1397 template_param_decls.push_back(TemplateTypeParmDecl::Create(
1398 ast, decl_context, SourceLocation(), SourceLocation(), depth, i,
1399 identifier_info, is_typename, parameter_pack));
1400 }
1401 }
1402
1403 if (template_param_infos.packed_args) {
1404 IdentifierInfo *identifier_info = nullptr;
1405 if (template_param_infos.pack_name && template_param_infos.pack_name[0])
1406 identifier_info = &ast.Idents.get(template_param_infos.pack_name);
1407 const bool parameter_pack_true = true;
1408
1409 if (!template_param_infos.packed_args->args.empty() &&
1410 IsValueParam(template_param_infos.packed_args->args[0])) {
1411 QualType template_param_type =
1412 template_param_infos.packed_args->args[0].getIntegralType();
1413 template_param_decls.push_back(NonTypeTemplateParmDecl::Create(
1414 ast, decl_context, SourceLocation(), SourceLocation(), depth,
1415 num_template_params, identifier_info, template_param_type,
1416 parameter_pack_true,
1417 ast.getTrivialTypeSourceInfo(template_param_type)));
1418 } else {
1419 template_param_decls.push_back(TemplateTypeParmDecl::Create(
1420 ast, decl_context, SourceLocation(), SourceLocation(), depth,
1421 num_template_params, identifier_info, is_typename,
1422 parameter_pack_true));
1423 }
1424 }
1425 clang::Expr *const requires_clause = nullptr; // TODO: Concepts
1426 TemplateParameterList *template_param_list = TemplateParameterList::Create(
1427 ast, SourceLocation(), SourceLocation(), template_param_decls,
1428 SourceLocation(), requires_clause);
1429 return template_param_list;
1430}
1431
1432clang::FunctionTemplateDecl *TypeSystemClang::CreateFunctionTemplateDecl(
1433 clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module,
1434 clang::FunctionDecl *func_decl,
1435 const TemplateParameterInfos &template_param_infos) {
1436 // /// Create a function template node.
1437 ASTContext &ast = getASTContext();
1438
1439 llvm::SmallVector<NamedDecl *, 8> template_param_decls;
1440 TemplateParameterList *template_param_list = CreateTemplateParameterList(
1441 ast, template_param_infos, template_param_decls);
1442 FunctionTemplateDecl *func_tmpl_decl =
1443 FunctionTemplateDecl::CreateDeserialized(ast, 0);
1444 func_tmpl_decl->setDeclContext(decl_ctx);
1445 func_tmpl_decl->setLocation(func_decl->getLocation());
1446 func_tmpl_decl->setDeclName(func_decl->getDeclName());
1447 func_tmpl_decl->init(func_decl, template_param_list);
1448 SetOwningModule(func_tmpl_decl, owning_module);
1449
1450 for (size_t i = 0, template_param_decl_count = template_param_decls.size();
1451 i < template_param_decl_count; ++i) {
1452 // TODO: verify which decl context we should put template_param_decls into..
1453 template_param_decls[i]->setDeclContext(func_decl);
1454 }
1455 // Function templates inside a record need to have an access specifier.
1456 // It doesn't matter what access specifier we give the template as LLDB
1457 // anyway allows accessing everything inside a record.
1458 if (decl_ctx->isRecord())
1459 func_tmpl_decl->setAccess(clang::AccessSpecifier::AS_public);
1460
1461 return func_tmpl_decl;
1462}
1463
1464void TypeSystemClang::CreateFunctionTemplateSpecializationInfo(
1465 FunctionDecl *func_decl, clang::FunctionTemplateDecl *func_tmpl_decl,
1466 const TemplateParameterInfos &infos) {
1467 TemplateArgumentList *template_args_ptr =
1468 TemplateArgumentList::CreateCopy(func_decl->getASTContext(), infos.args);
1469
1470 func_decl->setFunctionTemplateSpecialization(func_tmpl_decl,
1471 template_args_ptr, nullptr);
1472}
1473
1474/// Returns true if the given template parameter can represent the given value.
1475/// For example, `typename T` can represent `int` but not integral values such
1476/// as `int I = 3`.
1477static bool TemplateParameterAllowsValue(NamedDecl *param,
1478 const TemplateArgument &value) {
1479 if (llvm::isa<TemplateTypeParmDecl>(param)) {
1480 // Compare the argument kind, i.e. ensure that <typename> != <int>.
1481 if (value.getKind() != TemplateArgument::Type)
1482 return false;
1483 } else if (auto *type_param =
1484 llvm::dyn_cast<NonTypeTemplateParmDecl>(param)) {
1485 // Compare the argument kind, i.e. ensure that <typename> != <int>.
1486 if (!IsValueParam(value))
1487 return false;
1488 // Compare the integral type, i.e. ensure that <int> != <char>.
1489 if (type_param->getType() != value.getIntegralType())
1490 return false;
1491 } else {
1492 // There is no way to create other parameter decls at the moment, so we
1493 // can't reach this case during normal LLDB usage. Log that this happened
1494 // and assert.
1495 Log *log = lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EXPRESSIONS::lldb_private::LLDBLog::Expressions);
1496 LLDB_LOG(log,do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "Don't know how to compare template parameter to passed"
" value. Decl kind of parameter is: {0}", param->getDeclKindName
()); } while (0)
1497 "Don't know how to compare template parameter to passed"do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "Don't know how to compare template parameter to passed"
" value. Decl kind of parameter is: {0}", param->getDeclKindName
()); } while (0)
1498 " value. Decl kind of parameter is: {0}",do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "Don't know how to compare template parameter to passed"
" value. Decl kind of parameter is: {0}", param->getDeclKindName
()); } while (0)
1499 param->getDeclKindName())do { ::lldb_private::Log *log_private = (log); if (log_private
) log_private->Format("lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, __func__, "Don't know how to compare template parameter to passed"
" value. Decl kind of parameter is: {0}", param->getDeclKindName
()); } while (0)
;
1500 lldbassert(false && "Can't compare this TemplateParmDecl subclass")lldb_private::lldb_assert(static_cast<bool>(false &&
"Can't compare this TemplateParmDecl subclass"), "false && \"Can't compare this TemplateParmDecl subclass\""
, __FUNCTION__, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 1500)
;
1501 // In release builds just fall back to marking the parameter as not
1502 // accepting the value so that we don't try to fit an instantiation to a
1503 // template that doesn't fit. E.g., avoid that `S<1>` is being connected to
1504 // `template<typename T> struct S;`.
1505 return false;
1506 }
1507 return true;
1508}
1509
1510/// Returns true if the given class template declaration could produce an
1511/// instantiation with the specified values.
1512/// For example, `<typename T>` allows the arguments `float`, but not for
1513/// example `bool, float` or `3` (as an integer parameter value).
1514static bool ClassTemplateAllowsToInstantiationArgs(
1515 ClassTemplateDecl *class_template_decl,
1516 const TypeSystemClang::TemplateParameterInfos &instantiation_values) {
1517
1518 TemplateParameterList &params = *class_template_decl->getTemplateParameters();
1519
1520 // Save some work by iterating only once over the found parameters and
1521 // calculate the information related to parameter packs.
1522
1523 // Contains the first pack parameter (or non if there are none).
1524 llvm::Optional<NamedDecl *> pack_parameter;
1525 // Contains the number of non-pack parameters.
1526 size_t non_pack_params = params.size();
1527 for (size_t i = 0; i < params.size(); ++i) {
1528 NamedDecl *param = params.getParam(i);
1529 if (param->isParameterPack()) {
1530 pack_parameter = param;
1531 non_pack_params = i;
1532 break;
1533 }
1534 }
1535
1536 // The found template needs to have compatible non-pack template arguments.
1537 // E.g., ensure that <typename, typename> != <typename>.
1538 // The pack parameters are compared later.
1539 if (non_pack_params != instantiation_values.args.size())
1540 return false;
1541
1542 // Ensure that <typename...> != <typename>.
1543 if (pack_parameter.hasValue() != instantiation_values.hasParameterPack())
1544 return false;
1545
1546 // Compare the first pack parameter that was found with the first pack
1547 // parameter value. The special case of having an empty parameter pack value
1548 // always fits to a pack parameter.
1549 // E.g., ensure that <int...> != <typename...>.
1550 if (pack_parameter && !instantiation_values.packed_args->args.empty() &&
1551 !TemplateParameterAllowsValue(
1552 *pack_parameter, instantiation_values.packed_args->args.front()))
1553 return false;
1554
1555 // Compare all the non-pack parameters now.
1556 // E.g., ensure that <int> != <long>.
1557 for (const auto pair : llvm::zip_first(instantiation_values.args, params)) {
1558 const TemplateArgument &passed_arg = std::get<0>(pair);
1559 NamedDecl *found_param = std::get<1>(pair);
1560 if (!TemplateParameterAllowsValue(found_param, passed_arg))
1561 return false;
1562 }
1563
1564 return class_template_decl;
1565}
1566
1567ClassTemplateDecl *TypeSystemClang::CreateClassTemplateDecl(
1568 DeclContext *decl_ctx, OptionalClangModuleID owning_module,
1569 lldb::AccessType access_type, llvm::StringRef class_name, int kind,
1570 const TemplateParameterInfos &template_param_infos) {
1571 ASTContext &ast = getASTContext();
1572
1573 ClassTemplateDecl *class_template_decl = nullptr;
1574 if (decl_ctx == nullptr)
1575 decl_ctx = ast.getTranslationUnitDecl();
1576
1577 IdentifierInfo &identifier_info = ast.Idents.get(class_name);
1578 DeclarationName decl_name(&identifier_info);
1579
1580 // Search the AST for an existing ClassTemplateDecl that could be reused.
1581 clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name);
1582 for (NamedDecl *decl : result) {
1583 class_template_decl = dyn_cast<clang::ClassTemplateDecl>(decl);
1584 if (!class_template_decl)
1585 continue;
1586 // The class template has to be able to represents the instantiation
1587 // values we received. Without this we might end up putting an instantiation
1588 // with arguments such as <int, int> to a template such as:
1589 // template<typename T> struct S;
1590 // Connecting the instantiation to an incompatible template could cause
1591 // problems later on.
1592 if (!ClassTemplateAllowsToInstantiationArgs(class_template_decl,
1593 template_param_infos))
1594 continue;
1595 return class_template_decl;
1596 }
1597
1598 llvm::SmallVector<NamedDecl *, 8> template_param_decls;
1599
1600 TemplateParameterList *template_param_list = CreateTemplateParameterList(
1601 ast, template_param_infos, template_param_decls);
1602
1603 CXXRecordDecl *template_cxx_decl = CXXRecordDecl::CreateDeserialized(ast, 0);
1604 template_cxx_decl->setTagKind(static_cast<TagDecl::TagKind>(kind));
1605 // What decl context do we use here? TU? The actual decl context?
1606 template_cxx_decl->setDeclContext(decl_ctx);
1607 template_cxx_decl->setDeclName(decl_name);
1608 SetOwningModule(template_cxx_decl, owning_module);
1609
1610 for (size_t i = 0, template_param_decl_count = template_param_decls.size();
1611 i < template_param_decl_count; ++i) {
1612 template_param_decls[i]->setDeclContext(template_cxx_decl);
1613 }
1614
1615 // With templated classes, we say that a class is templated with
1616 // specializations, but that the bare class has no functions.
1617 // template_cxx_decl->startDefinition();
1618 // template_cxx_decl->completeDefinition();
1619
1620 class_template_decl = ClassTemplateDecl::CreateDeserialized(ast, 0);
1621 // What decl context do we use here? TU? The actual decl context?
1622 class_template_decl->setDeclContext(decl_ctx);
1623 class_template_decl->setDeclName(decl_name);
1624 class_template_decl->init(template_cxx_decl, template_param_list);
1625 template_cxx_decl->setDescribedClassTemplate(class_template_decl);
1626 SetOwningModule(class_template_decl, owning_module);
1627
1628 if (access_type != eAccessNone)
1629 class_template_decl->setAccess(
1630 ConvertAccessTypeToAccessSpecifier(access_type));
1631
1632 decl_ctx->addDecl(class_template_decl);
1633
1634 VerifyDecl(class_template_decl);
1635
1636 return class_template_decl;
1637}
1638
1639TemplateTemplateParmDecl *
1640TypeSystemClang::CreateTemplateTemplateParmDecl(const char *template_name) {
1641 ASTContext &ast = getASTContext();
1642
1643 auto *decl_ctx = ast.getTranslationUnitDecl();
1644
1645 IdentifierInfo &identifier_info = ast.Idents.get(template_name);
1646 llvm::SmallVector<NamedDecl *, 8> template_param_decls;
1647
1648 TypeSystemClang::TemplateParameterInfos template_param_infos;
1649 TemplateParameterList *template_param_list = CreateTemplateParameterList(
1650 ast, template_param_infos, template_param_decls);
1651
1652 // LLDB needs to create those decls only to be able to display a
1653 // type that includes a template template argument. Only the name matters for
1654 // this purpose, so we use dummy values for the other characteristics of the
1655 // type.
1656 return TemplateTemplateParmDecl::Create(
1657 ast, decl_ctx, SourceLocation(),
1658 /*Depth*/ 0, /*Position*/ 0,
1659 /*IsParameterPack*/ false, &identifier_info, template_param_list);
1660}
1661
1662ClassTemplateSpecializationDecl *
1663TypeSystemClang::CreateClassTemplateSpecializationDecl(
1664 DeclContext *decl_ctx, OptionalClangModuleID owning_module,
1665 ClassTemplateDecl *class_template_decl, int kind,
1666 const TemplateParameterInfos &template_param_infos) {
1667 ASTContext &ast = getASTContext();
1668 llvm::SmallVector<clang::TemplateArgument, 2> args(
1669 template_param_infos.args.size() +
1670 (template_param_infos.packed_args ? 1 : 0));
1671 std::copy(template_param_infos.args.begin(), template_param_infos.args.end(),
1672 args.begin());
1673 if (template_param_infos.packed_args) {
1674 args[args.size() - 1] = TemplateArgument::CreatePackCopy(
1675 ast, template_param_infos.packed_args->args);
1676 }
1677 ClassTemplateSpecializationDecl *class_template_specialization_decl =
1678 ClassTemplateSpecializationDecl::CreateDeserialized(ast, 0);
1679 class_template_specialization_decl->setTagKind(
1680 static_cast<TagDecl::TagKind>(kind));
1681 class_template_specialization_decl->setDeclContext(decl_ctx);
1682 class_template_specialization_decl->setInstantiationOf(class_template_decl);
1683 class_template_specialization_decl->setTemplateArgs(
1684 TemplateArgumentList::CreateCopy(ast, args));
1685 ast.getTypeDeclType(class_template_specialization_decl, nullptr);
1686 class_template_specialization_decl->setDeclName(
1687 class_template_decl->getDeclName());
1688 SetOwningModule(class_template_specialization_decl, owning_module);
1689 decl_ctx->addDecl(class_template_specialization_decl);
1690
1691 class_template_specialization_decl->setSpecializationKind(
1692 TSK_ExplicitSpecialization);
1693
1694 return class_template_specialization_decl;
1695}
1696
1697CompilerType TypeSystemClang::CreateClassTemplateSpecializationType(
1698 ClassTemplateSpecializationDecl *class_template_specialization_decl) {
1699 if (class_template_specialization_decl) {
1700 ASTContext &ast = getASTContext();
1701 return GetType(ast.getTagDeclType(class_template_specialization_decl));
1702 }
1703 return CompilerType();
1704}
1705
1706static inline bool check_op_param(bool is_method,
1707 clang::OverloadedOperatorKind op_kind,
1708 bool unary, bool binary,
1709 uint32_t num_params) {
1710 // Special-case call since it can take any number of operands
1711 if (op_kind == OO_Call)
1712 return true;
1713
1714 // The parameter count doesn't include "this"
1715 if (is_method)
1716 ++num_params;
1717 if (num_params == 1)
1718 return unary;
1719 if (num_params == 2)
1720 return binary;
1721 else
1722 return false;
1723}
1724
1725bool TypeSystemClang::CheckOverloadedOperatorKindParameterCount(
1726 bool is_method, clang::OverloadedOperatorKind op_kind,
1727 uint32_t num_params) {
1728 switch (op_kind) {
1729 default:
1730 break;
1731 // C++ standard allows any number of arguments to new/delete
1732 case OO_New:
1733 case OO_Array_New:
1734 case OO_Delete:
1735 case OO_Array_Delete:
1736 return true;
1737 }
1738
1739#define OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly) \
1740 case OO_##Name: \
1741 return check_op_param(is_method, op_kind, Unary, Binary, num_params);
1742 switch (op_kind) {
1743#include "clang/Basic/OperatorKinds.def"
1744 default:
1745 break;
1746 }
1747 return false;
1748}
1749
1750clang::AccessSpecifier
1751TypeSystemClang::UnifyAccessSpecifiers(clang::AccessSpecifier lhs,
1752 clang::AccessSpecifier rhs) {
1753 // Make the access equal to the stricter of the field and the nested field's
1754 // access
1755 if (lhs == AS_none || rhs == AS_none)
1756 return AS_none;
1757 if (lhs == AS_private || rhs == AS_private)
1758 return AS_private;
1759 if (lhs == AS_protected || rhs == AS_protected)
1760 return AS_protected;
1761 return AS_public;
1762}
1763
1764bool TypeSystemClang::FieldIsBitfield(FieldDecl *field,
1765 uint32_t &bitfield_bit_size) {
1766 ASTContext &ast = getASTContext();
1767 if (field == nullptr)
1768 return false;
1769
1770 if (field->isBitField()) {
1771 Expr *bit_width_expr = field->getBitWidth();
1772 if (bit_width_expr) {
1773 if (Optional<llvm::APSInt> bit_width_apsint =
1774 bit_width_expr->getIntegerConstantExpr(ast)) {
1775 bitfield_bit_size = bit_width_apsint->getLimitedValue(UINT32_MAX(4294967295U));
1776 return true;
1777 }
1778 }
1779 }
1780 return false;
1781}
1782
1783bool TypeSystemClang::RecordHasFields(const RecordDecl *record_decl) {
1784 if (record_decl == nullptr)
1785 return false;
1786
1787 if (!record_decl->field_empty())
1788 return true;
1789
1790 // No fields, lets check this is a CXX record and check the base classes
1791 const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
1792 if (cxx_record_decl) {
1793 CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
1794 for (base_class = cxx_record_decl->bases_begin(),
1795 base_class_end = cxx_record_decl->bases_end();
1796 base_class != base_class_end; ++base_class) {
1797 const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>(
1798 base_class->getType()->getAs<RecordType>()->getDecl());
1799 if (RecordHasFields(base_class_decl))
1800 return true;
1801 }
1802 }
1803 return false;
1804}
1805
1806#pragma mark Objective-C Classes
1807
1808CompilerType TypeSystemClang::CreateObjCClass(
1809 llvm::StringRef name, clang::DeclContext *decl_ctx,
1810 OptionalClangModuleID owning_module, bool isForwardDecl, bool isInternal,
1811 ClangASTMetadata *metadata) {
1812 ASTContext &ast = getASTContext();
1813 assert(!name.empty())(static_cast <bool> (!name.empty()) ? void (0) : __assert_fail
("!name.empty()", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 1813, __extension__ __PRETTY_FUNCTION__))
;
1814 if (!decl_ctx)
1815 decl_ctx = ast.getTranslationUnitDecl();
1816
1817 ObjCInterfaceDecl *decl = ObjCInterfaceDecl::CreateDeserialized(ast, 0);
1818 decl->setDeclContext(decl_ctx);
1819 decl->setDeclName(&ast.Idents.get(name));
1820 /*isForwardDecl,*/
1821 decl->setImplicit(isInternal);
1822 SetOwningModule(decl, owning_module);
1823
1824 if (metadata)
1825 SetMetadata(decl, *metadata);
1826
1827 return GetType(ast.getObjCInterfaceType(decl));
1828}
1829
1830static inline bool BaseSpecifierIsEmpty(const CXXBaseSpecifier *b) {
1831 return !TypeSystemClang::RecordHasFields(b->getType()->getAsCXXRecordDecl());
1832}
1833
1834uint32_t
1835TypeSystemClang::GetNumBaseClasses(const CXXRecordDecl *cxx_record_decl,
1836 bool omit_empty_base_classes) {
1837 uint32_t num_bases = 0;
1838 if (cxx_record_decl) {
1839 if (omit_empty_base_classes) {
1840 CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
1841 for (base_class = cxx_record_decl->bases_begin(),
1842 base_class_end = cxx_record_decl->bases_end();
1843 base_class != base_class_end; ++base_class) {
1844 // Skip empty base classes
1845 if (BaseSpecifierIsEmpty(base_class))
1846 continue;
1847 ++num_bases;
1848 }
1849 } else
1850 num_bases = cxx_record_decl->getNumBases();
1851 }
1852 return num_bases;
1853}
1854
1855#pragma mark Namespace Declarations
1856
1857NamespaceDecl *TypeSystemClang::GetUniqueNamespaceDeclaration(
1858 const char *name, clang::DeclContext *decl_ctx,
1859 OptionalClangModuleID owning_module, bool is_inline) {
1860 NamespaceDecl *namespace_decl = nullptr;
1861 ASTContext &ast = getASTContext();
1862 TranslationUnitDecl *translation_unit_decl = ast.getTranslationUnitDecl();
1863 if (!decl_ctx)
1864 decl_ctx = translation_unit_decl;
1865
1866 if (name) {
1867 IdentifierInfo &identifier_info = ast.Idents.get(name);
1868 DeclarationName decl_name(&identifier_info);
1869 clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name);
1870 for (NamedDecl *decl : result) {
1871 namespace_decl = dyn_cast<clang::NamespaceDecl>(decl);
1872 if (namespace_decl)
1873 return namespace_decl;
1874 }
1875
1876 namespace_decl =
1877 NamespaceDecl::Create(ast, decl_ctx, is_inline, SourceLocation(),
1878 SourceLocation(), &identifier_info, nullptr);
1879
1880 decl_ctx->addDecl(namespace_decl);
1881 } else {
1882 if (decl_ctx == translation_unit_decl) {
1883 namespace_decl = translation_unit_decl->getAnonymousNamespace();
1884 if (namespace_decl)
1885 return namespace_decl;
1886
1887 namespace_decl =
1888 NamespaceDecl::Create(ast, decl_ctx, false, SourceLocation(),
1889 SourceLocation(), nullptr, nullptr);
1890 translation_unit_decl->setAnonymousNamespace(namespace_decl);
1891 translation_unit_decl->addDecl(namespace_decl);
1892 assert(namespace_decl == translation_unit_decl->getAnonymousNamespace())(static_cast <bool> (namespace_decl == translation_unit_decl
->getAnonymousNamespace()) ? void (0) : __assert_fail ("namespace_decl == translation_unit_decl->getAnonymousNamespace()"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
1892, __extension__ __PRETTY_FUNCTION__))
;
1893 } else {
1894 NamespaceDecl *parent_namespace_decl = cast<NamespaceDecl>(decl_ctx);
1895 if (parent_namespace_decl) {
1896 namespace_decl = parent_namespace_decl->getAnonymousNamespace();
1897 if (namespace_decl)
1898 return namespace_decl;
1899 namespace_decl =
1900 NamespaceDecl::Create(ast, decl_ctx, false, SourceLocation(),
1901 SourceLocation(), nullptr, nullptr);
1902 parent_namespace_decl->setAnonymousNamespace(namespace_decl);
1903 parent_namespace_decl->addDecl(namespace_decl);
1904 assert(namespace_decl ==(static_cast <bool> (namespace_decl == parent_namespace_decl
->getAnonymousNamespace()) ? void (0) : __assert_fail ("namespace_decl == parent_namespace_decl->getAnonymousNamespace()"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
1905, __extension__ __PRETTY_FUNCTION__))
1905 parent_namespace_decl->getAnonymousNamespace())(static_cast <bool> (namespace_decl == parent_namespace_decl
->getAnonymousNamespace()) ? void (0) : __assert_fail ("namespace_decl == parent_namespace_decl->getAnonymousNamespace()"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
1905, __extension__ __PRETTY_FUNCTION__))
;
1906 } else {
1907 assert(false && "GetUniqueNamespaceDeclaration called with no name and "(static_cast <bool> (false && "GetUniqueNamespaceDeclaration called with no name and "
"no namespace as decl_ctx") ? void (0) : __assert_fail ("false && \"GetUniqueNamespaceDeclaration called with no name and \" \"no namespace as decl_ctx\""
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
1908, __extension__ __PRETTY_FUNCTION__))
1908 "no namespace as decl_ctx")(static_cast <bool> (false && "GetUniqueNamespaceDeclaration called with no name and "
"no namespace as decl_ctx") ? void (0) : __assert_fail ("false && \"GetUniqueNamespaceDeclaration called with no name and \" \"no namespace as decl_ctx\""
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
1908, __extension__ __PRETTY_FUNCTION__))
;
1909 }
1910 }
1911 }
1912 // Note: namespaces can span multiple modules, so perhaps this isn't a good
1913 // idea.
1914 SetOwningModule(namespace_decl, owning_module);
1915
1916 VerifyDecl(namespace_decl);
1917 return namespace_decl;
1918}
1919
1920clang::BlockDecl *
1921TypeSystemClang::CreateBlockDeclaration(clang::DeclContext *ctx,
1922 OptionalClangModuleID owning_module) {
1923 if (ctx) {
1924 clang::BlockDecl *decl =
1925 clang::BlockDecl::CreateDeserialized(getASTContext(), 0);
1926 decl->setDeclContext(ctx);
1927 ctx->addDecl(decl);
1928 SetOwningModule(decl, owning_module);
1929 return decl;
1930 }
1931 return nullptr;
1932}
1933
1934clang::DeclContext *FindLCABetweenDecls(clang::DeclContext *left,
1935 clang::DeclContext *right,
1936 clang::DeclContext *root) {
1937 if (root == nullptr)
1938 return nullptr;
1939
1940 std::set<clang::DeclContext *> path_left;
1941 for (clang::DeclContext *d = left; d != nullptr; d = d->getParent())
1942 path_left.insert(d);
1943
1944 for (clang::DeclContext *d = right; d != nullptr; d = d->getParent())
1945 if (path_left.find(d) != path_left.end())
1946 return d;
1947
1948 return nullptr;
1949}
1950
1951clang::UsingDirectiveDecl *TypeSystemClang::CreateUsingDirectiveDeclaration(
1952 clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module,
1953 clang::NamespaceDecl *ns_decl) {
1954 if (decl_ctx && ns_decl) {
1955 auto *translation_unit = getASTContext().getTranslationUnitDecl();
1956 clang::UsingDirectiveDecl *using_decl = clang::UsingDirectiveDecl::Create(
1957 getASTContext(), decl_ctx, clang::SourceLocation(),
1958 clang::SourceLocation(), clang::NestedNameSpecifierLoc(),
1959 clang::SourceLocation(), ns_decl,
1960 FindLCABetweenDecls(decl_ctx, ns_decl,
1961 translation_unit));
1962 decl_ctx->addDecl(using_decl);
1963 SetOwningModule(using_decl, owning_module);
1964 return using_decl;
1965 }
1966 return nullptr;
1967}
1968
1969clang::UsingDecl *
1970TypeSystemClang::CreateUsingDeclaration(clang::DeclContext *current_decl_ctx,
1971 OptionalClangModuleID owning_module,
1972 clang::NamedDecl *target) {
1973 if (current_decl_ctx && target) {
1974 clang::UsingDecl *using_decl = clang::UsingDecl::Create(
1975 getASTContext(), current_decl_ctx, clang::SourceLocation(),
1976 clang::NestedNameSpecifierLoc(), clang::DeclarationNameInfo(), false);
1977 SetOwningModule(using_decl, owning_module);
1978 clang::UsingShadowDecl *shadow_decl = clang::UsingShadowDecl::Create(
1979 getASTContext(), current_decl_ctx, clang::SourceLocation(),
1980 target->getDeclName(), using_decl, target);
1981 SetOwningModule(shadow_decl, owning_module);
1982 using_decl->addShadowDecl(shadow_decl);
1983 current_decl_ctx->addDecl(using_decl);
1984 return using_decl;
1985 }
1986 return nullptr;
1987}
1988
1989clang::VarDecl *TypeSystemClang::CreateVariableDeclaration(
1990 clang::DeclContext *decl_context, OptionalClangModuleID owning_module,
1991 const char *name, clang::QualType type) {
1992 if (decl_context) {
1993 clang::VarDecl *var_decl =
1994 clang::VarDecl::CreateDeserialized(getASTContext(), 0);
1995 var_decl->setDeclContext(decl_context);
1996 if (name && name[0])
1997 var_decl->setDeclName(&getASTContext().Idents.getOwn(name));
1998 var_decl->setType(type);
1999 SetOwningModule(var_decl, owning_module);
2000 var_decl->setAccess(clang::AS_public);
2001 decl_context->addDecl(var_decl);
2002 return var_decl;
2003 }
2004 return nullptr;
2005}
2006
2007lldb::opaque_compiler_type_t
2008TypeSystemClang::GetOpaqueCompilerType(clang::ASTContext *ast,
2009 lldb::BasicType basic_type) {
2010 switch (basic_type) {
2011 case eBasicTypeVoid:
2012 return ast->VoidTy.getAsOpaquePtr();
2013 case eBasicTypeChar:
2014 return ast->CharTy.getAsOpaquePtr();
2015 case eBasicTypeSignedChar:
2016 return ast->SignedCharTy.getAsOpaquePtr();
2017 case eBasicTypeUnsignedChar:
2018 return ast->UnsignedCharTy.getAsOpaquePtr();
2019 case eBasicTypeWChar:
2020 return ast->getWCharType().getAsOpaquePtr();
2021 case eBasicTypeSignedWChar:
2022 return ast->getSignedWCharType().getAsOpaquePtr();
2023 case eBasicTypeUnsignedWChar:
2024 return ast->getUnsignedWCharType().getAsOpaquePtr();
2025 case eBasicTypeChar16:
2026 return ast->Char16Ty.getAsOpaquePtr();
2027 case eBasicTypeChar32:
2028 return ast->Char32Ty.getAsOpaquePtr();
2029 case eBasicTypeShort:
2030 return ast->ShortTy.getAsOpaquePtr();
2031 case eBasicTypeUnsignedShort:
2032 return ast->UnsignedShortTy.getAsOpaquePtr();
2033 case eBasicTypeInt:
2034 return ast->IntTy.getAsOpaquePtr();
2035 case eBasicTypeUnsignedInt:
2036 return ast->UnsignedIntTy.getAsOpaquePtr();
2037 case eBasicTypeLong:
2038 return ast->LongTy.getAsOpaquePtr();
2039 case eBasicTypeUnsignedLong:
2040 return ast->UnsignedLongTy.getAsOpaquePtr();
2041 case eBasicTypeLongLong:
2042 return ast->LongLongTy.getAsOpaquePtr();
2043 case eBasicTypeUnsignedLongLong:
2044 return ast->UnsignedLongLongTy.getAsOpaquePtr();
2045 case eBasicTypeInt128:
2046 return ast->Int128Ty.getAsOpaquePtr();
2047 case eBasicTypeUnsignedInt128:
2048 return ast->UnsignedInt128Ty.getAsOpaquePtr();
2049 case eBasicTypeBool:
2050 return ast->BoolTy.getAsOpaquePtr();
2051 case eBasicTypeHalf:
2052 return ast->HalfTy.getAsOpaquePtr();
2053 case eBasicTypeFloat:
2054 return ast->FloatTy.getAsOpaquePtr();
2055 case eBasicTypeDouble:
2056 return ast->DoubleTy.getAsOpaquePtr();
2057 case eBasicTypeLongDouble:
2058 return ast->LongDoubleTy.getAsOpaquePtr();
2059 case eBasicTypeFloatComplex:
2060 return ast->getComplexType(ast->FloatTy).getAsOpaquePtr();
2061 case eBasicTypeDoubleComplex:
2062 return ast->getComplexType(ast->DoubleTy).getAsOpaquePtr();
2063 case eBasicTypeLongDoubleComplex:
2064 return ast->getComplexType(ast->LongDoubleTy).getAsOpaquePtr();
2065 case eBasicTypeObjCID:
2066 return ast->getObjCIdType().getAsOpaquePtr();
2067 case eBasicTypeObjCClass:
2068 return ast->getObjCClassType().getAsOpaquePtr();
2069 case eBasicTypeObjCSel:
2070 return ast->getObjCSelType().getAsOpaquePtr();
2071 case eBasicTypeNullPtr:
2072 return ast->NullPtrTy.getAsOpaquePtr();
2073 default:
2074 return nullptr;
2075 }
2076}
2077
2078#pragma mark Function Types
2079
2080clang::DeclarationName
2081TypeSystemClang::GetDeclarationName(llvm::StringRef name,
2082 const CompilerType &function_clang_type) {
2083 clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS;
2084 if (!IsOperator(name, op_kind) || op_kind == clang::NUM_OVERLOADED_OPERATORS)
2085 return DeclarationName(&getASTContext().Idents.get(
2086 name)); // Not operator, but a regular function.
2087
2088 // Check the number of operator parameters. Sometimes we have seen bad DWARF
2089 // that doesn't correctly describe operators and if we try to create a method
2090 // and add it to the class, clang will assert and crash, so we need to make
2091 // sure things are acceptable.
2092 clang::QualType method_qual_type(ClangUtil::GetQualType(function_clang_type));
2093 const clang::FunctionProtoType *function_type =
2094 llvm::dyn_cast<clang::FunctionProtoType>(method_qual_type.getTypePtr());
2095 if (function_type == nullptr)
2096 return clang::DeclarationName();
2097
2098 const bool is_method = false;
2099 const unsigned int num_params = function_type->getNumParams();
2100 if (!TypeSystemClang::CheckOverloadedOperatorKindParameterCount(
2101 is_method, op_kind, num_params))
2102 return clang::DeclarationName();
2103
2104 return getASTContext().DeclarationNames.getCXXOperatorName(op_kind);
2105}
2106
2107PrintingPolicy TypeSystemClang::GetTypePrintingPolicy() {
2108 clang::PrintingPolicy printing_policy(getASTContext().getPrintingPolicy());
2109 printing_policy.SuppressTagKeyword = true;
2110 // Inline namespaces are important for some type formatters (e.g., libc++
2111 // and libstdc++ are differentiated by their inline namespaces).
2112 printing_policy.SuppressInlineNamespace = false;
2113 printing_policy.SuppressUnwrittenScope = false;
2114 // Default arguments are also always important for type formatters. Otherwise
2115 // we would need to always specify two type names for the setups where we do
2116 // know the default arguments and where we don't know default arguments.
2117 //
2118 // For example, without this we would need to have formatters for both:
2119 // std::basic_string<char>
2120 // and
2121 // std::basic_string<char, std::char_traits<char>, std::allocator<char> >
2122 // to support setups where LLDB was able to reconstruct default arguments
2123 // (and we then would have suppressed them from the type name) and also setups
2124 // where LLDB wasn't able to reconstruct the default arguments.
2125 printing_policy.SuppressDefaultTemplateArgs = false;
2126 return printing_policy;
2127}
2128
2129std::string TypeSystemClang::GetTypeNameForDecl(const NamedDecl *named_decl) {
2130 clang::PrintingPolicy printing_policy = GetTypePrintingPolicy();
2131 std::string result;
2132 llvm::raw_string_ostream os(result);
2133 named_decl->printQualifiedName(os, printing_policy);
2134 return result;
2135}
2136
2137FunctionDecl *TypeSystemClang::CreateFunctionDeclaration(
2138 clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module,
2139 llvm::StringRef name, const CompilerType &function_clang_type,
2140 clang::StorageClass storage, bool is_inline) {
2141 FunctionDecl *func_decl = nullptr;
2142 ASTContext &ast = getASTContext();
2143 if (!decl_ctx)
2144 decl_ctx = ast.getTranslationUnitDecl();
2145
2146 const bool hasWrittenPrototype = true;
2147 const bool isConstexprSpecified = false;
2148
2149 clang::DeclarationName declarationName =
2150 GetDeclarationName(name, function_clang_type);
2151 func_decl = FunctionDecl::CreateDeserialized(ast, 0);
2152 func_decl->setDeclContext(decl_ctx);
2153 func_decl->setDeclName(declarationName);
2154 func_decl->setType(ClangUtil::GetQualType(function_clang_type));
2155 func_decl->setStorageClass(storage);
2156 func_decl->setInlineSpecified(is_inline);
2157 func_decl->setHasWrittenPrototype(hasWrittenPrototype);
2158 func_decl->setConstexprKind(isConstexprSpecified
2159 ? ConstexprSpecKind::Constexpr
2160 : ConstexprSpecKind::Unspecified);
2161 SetOwningModule(func_decl, owning_module);
2162 decl_ctx->addDecl(func_decl);
2163
2164 VerifyDecl(func_decl);
2165
2166 return func_decl;
2167}
2168
2169CompilerType
2170TypeSystemClang::CreateFunctionType(const CompilerType &result_type,
2171 const CompilerType *args, unsigned num_args,
2172 bool is_variadic, unsigned type_quals,
2173 clang::CallingConv cc) {
2174 if (!result_type || !ClangUtil::IsClangType(result_type))
2175 return CompilerType(); // invalid return type
2176
2177 std::vector<QualType> qual_type_args;
2178 if (num_args > 0 && args == nullptr)
2179 return CompilerType(); // invalid argument array passed in
2180
2181 // Verify that all arguments are valid and the right type
2182 for (unsigned i = 0; i < num_args; ++i) {
2183 if (args[i]) {
2184 // Make sure we have a clang type in args[i] and not a type from another
2185 // language whose name might match
2186 const bool is_clang_type = ClangUtil::IsClangType(args[i]);
2187 lldbassert(is_clang_type)lldb_private::lldb_assert(static_cast<bool>(is_clang_type
), "is_clang_type", __FUNCTION__, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 2187)
;
2188 if (is_clang_type)
2189 qual_type_args.push_back(ClangUtil::GetQualType(args[i]));
2190 else
2191 return CompilerType(); // invalid argument type (must be a clang type)
2192 } else
2193 return CompilerType(); // invalid argument type (empty)
2194 }
2195
2196 // TODO: Detect calling convention in DWARF?
2197 FunctionProtoType::ExtProtoInfo proto_info;
2198 proto_info.ExtInfo = cc;
2199 proto_info.Variadic = is_variadic;
2200 proto_info.ExceptionSpec = EST_None;
2201 proto_info.TypeQuals = clang::Qualifiers::fromFastMask(type_quals);
2202 proto_info.RefQualifier = RQ_None;
2203
2204 return GetType(getASTContext().getFunctionType(
2205 ClangUtil::GetQualType(result_type), qual_type_args, proto_info));
2206}
2207
2208ParmVarDecl *TypeSystemClang::CreateParameterDeclaration(
2209 clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module,
2210 const char *name, const CompilerType &param_type, int storage,
2211 bool add_decl) {
2212 ASTContext &ast = getASTContext();
2213 auto *decl = ParmVarDecl::CreateDeserialized(ast, 0);
2214 decl->setDeclContext(decl_ctx);
2215 if (name && name[0])
2216 decl->setDeclName(&ast.Idents.get(name));
2217 decl->setType(ClangUtil::GetQualType(param_type));
2218 decl->setStorageClass(static_cast<clang::StorageClass>(storage));
2219 SetOwningModule(decl, owning_module);
2220 if (add_decl)
2221 decl_ctx->addDecl(decl);
2222
2223 return decl;
2224}
2225
2226void TypeSystemClang::SetFunctionParameters(
2227 FunctionDecl *function_decl, llvm::ArrayRef<ParmVarDecl *> params) {
2228 if (function_decl)
2229 function_decl->setParams(params);
2230}
2231
2232CompilerType
2233TypeSystemClang::CreateBlockPointerType(const CompilerType &function_type) {
2234 QualType block_type = m_ast_up->getBlockPointerType(
2235 clang::QualType::getFromOpaquePtr(function_type.GetOpaqueQualType()));
2236
2237 return GetType(block_type);
2238}
2239
2240#pragma mark Array Types
2241
2242CompilerType TypeSystemClang::CreateArrayType(const CompilerType &element_type,
2243 size_t element_count,
2244 bool is_vector) {
2245 if (element_type.IsValid()) {
2246 ASTContext &ast = getASTContext();
2247
2248 if (is_vector) {
2249 return GetType(ast.getExtVectorType(ClangUtil::GetQualType(element_type),
2250 element_count));
2251 } else {
2252
2253 llvm::APInt ap_element_count(64, element_count);
2254 if (element_count == 0) {
2255 return GetType(ast.getIncompleteArrayType(
2256 ClangUtil::GetQualType(element_type), clang::ArrayType::Normal, 0));
2257 } else {
2258 return GetType(ast.getConstantArrayType(
2259 ClangUtil::GetQualType(element_type), ap_element_count, nullptr,
2260 clang::ArrayType::Normal, 0));
2261 }
2262 }
2263 }
2264 return CompilerType();
2265}
2266
2267CompilerType TypeSystemClang::CreateStructForIdentifier(
2268 ConstString type_name,
2269 const std::initializer_list<std::pair<const char *, CompilerType>>
2270 &type_fields,
2271 bool packed) {
2272 CompilerType type;
2273 if (!type_name.IsEmpty() &&
2274 (type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name))
2275 .IsValid()) {
2276 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__, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 2276)
;
2277 return type;
2278 }
2279
2280 type = CreateRecordType(nullptr, OptionalClangModuleID(), lldb::eAccessPublic,
2281 type_name.GetCString(), clang::TTK_Struct,
2282 lldb::eLanguageTypeC);
2283 StartTagDeclarationDefinition(type);
2284 for (const auto &field : type_fields)
2285 AddFieldToRecordType(type, field.first, field.second, lldb::eAccessPublic,
2286 0);
2287 if (packed)
2288 SetIsPacked(type);
2289 CompleteTagDeclarationDefinition(type);
2290 return type;
2291}
2292
2293CompilerType TypeSystemClang::GetOrCreateStructForIdentifier(
2294 ConstString type_name,
2295 const std::initializer_list<std::pair<const char *, CompilerType>>
2296 &type_fields,
2297 bool packed) {
2298 CompilerType type;
2299 if ((type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)).IsValid())
2300 return type;
2301
2302 return CreateStructForIdentifier(type_name, type_fields, packed);
2303}
2304
2305#pragma mark Enumeration Types
2306
2307CompilerType TypeSystemClang::CreateEnumerationType(
2308 llvm::StringRef name, clang::DeclContext *decl_ctx,
2309 OptionalClangModuleID owning_module, const Declaration &decl,
2310 const CompilerType &integer_clang_type, bool is_scoped) {
2311 // TODO: Do something intelligent with the Declaration object passed in
2312 // like maybe filling in the SourceLocation with it...
2313 ASTContext &ast = getASTContext();
2314
2315 // TODO: ask about these...
2316 // const bool IsFixed = false;
2317 EnumDecl *enum_decl = EnumDecl::CreateDeserialized(ast, 0);
2318 enum_decl->setDeclContext(decl_ctx);
2319 if (!name.empty())
2320 enum_decl->setDeclName(&ast.Idents.get(name));
2321 enum_decl->setScoped(is_scoped);
2322 enum_decl->setScopedUsingClassTag(is_scoped);
2323 enum_decl->setFixed(false);
2324 SetOwningModule(enum_decl, owning_module);
2325 if (decl_ctx)
2326 decl_ctx->addDecl(enum_decl);
2327
2328 // TODO: check if we should be setting the promotion type too?
2329 enum_decl->setIntegerType(ClangUtil::GetQualType(integer_clang_type));
2330
2331 enum_decl->setAccess(AS_public); // TODO respect what's in the debug info
2332
2333 return GetType(ast.getTagDeclType(enum_decl));
2334}
2335
2336CompilerType TypeSystemClang::GetIntTypeFromBitSize(size_t bit_size,
2337 bool is_signed) {
2338 clang::ASTContext &ast = getASTContext();
2339
2340 if (is_signed) {
2341 if (bit_size == ast.getTypeSize(ast.SignedCharTy))
2342 return GetType(ast.SignedCharTy);
2343
2344 if (bit_size == ast.getTypeSize(ast.ShortTy))
2345 return GetType(ast.ShortTy);
2346
2347 if (bit_size == ast.getTypeSize(ast.IntTy))
2348 return GetType(ast.IntTy);
2349
2350 if (bit_size == ast.getTypeSize(ast.LongTy))
2351 return GetType(ast.LongTy);
2352
2353 if (bit_size == ast.getTypeSize(ast.LongLongTy))
2354 return GetType(ast.LongLongTy);
2355
2356 if (bit_size == ast.getTypeSize(ast.Int128Ty))
2357 return GetType(ast.Int128Ty);
2358 } else {
2359 if (bit_size == ast.getTypeSize(ast.UnsignedCharTy))
2360 return GetType(ast.UnsignedCharTy);
2361
2362 if (bit_size == ast.getTypeSize(ast.UnsignedShortTy))
2363 return GetType(ast.UnsignedShortTy);
2364
2365 if (bit_size == ast.getTypeSize(ast.UnsignedIntTy))
2366 return GetType(ast.UnsignedIntTy);
2367
2368 if (bit_size == ast.getTypeSize(ast.UnsignedLongTy))
2369 return GetType(ast.UnsignedLongTy);
2370
2371 if (bit_size == ast.getTypeSize(ast.UnsignedLongLongTy))
2372 return GetType(ast.UnsignedLongLongTy);
2373
2374 if (bit_size == ast.getTypeSize(ast.UnsignedInt128Ty))
2375 return GetType(ast.UnsignedInt128Ty);
2376 }
2377 return CompilerType();
2378}
2379
2380CompilerType TypeSystemClang::GetPointerSizedIntType(bool is_signed) {
2381 return GetIntTypeFromBitSize(
2382 getASTContext().getTypeSize(getASTContext().VoidPtrTy), is_signed);
2383}
2384
2385void TypeSystemClang::DumpDeclContextHiearchy(clang::DeclContext *decl_ctx) {
2386 if (decl_ctx) {
2387 DumpDeclContextHiearchy(decl_ctx->getParent());
2388
2389 clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl_ctx);
2390 if (named_decl) {
2391 printf("%20s: %s\n", decl_ctx->getDeclKindName(),
2392 named_decl->getDeclName().getAsString().c_str());
2393 } else {
2394 printf("%20s\n", decl_ctx->getDeclKindName());
2395 }
2396 }
2397}
2398
2399void TypeSystemClang::DumpDeclHiearchy(clang::Decl *decl) {
2400 if (decl == nullptr)
2401 return;
2402 DumpDeclContextHiearchy(decl->getDeclContext());
2403
2404 clang::RecordDecl *record_decl = llvm::dyn_cast<clang::RecordDecl>(decl);
2405 if (record_decl) {
2406 printf("%20s: %s%s\n", decl->getDeclKindName(),
2407 record_decl->getDeclName().getAsString().c_str(),
2408 record_decl->isInjectedClassName() ? " (injected class name)" : "");
2409
2410 } else {
2411 clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl);
2412 if (named_decl) {
2413 printf("%20s: %s\n", decl->getDeclKindName(),
2414 named_decl->getDeclName().getAsString().c_str());
2415 } else {
2416 printf("%20s\n", decl->getDeclKindName());
2417 }
2418 }
2419}
2420
2421bool TypeSystemClang::DeclsAreEquivalent(clang::Decl *lhs_decl,
2422 clang::Decl *rhs_decl) {
2423 if (lhs_decl && rhs_decl) {
2424 // Make sure the decl kinds match first
2425 const clang::Decl::Kind lhs_decl_kind = lhs_decl->getKind();
2426 const clang::Decl::Kind rhs_decl_kind = rhs_decl->getKind();
2427
2428 if (lhs_decl_kind == rhs_decl_kind) {
2429 // Now check that the decl contexts kinds are all equivalent before we
2430 // have to check any names of the decl contexts...
2431 clang::DeclContext *lhs_decl_ctx = lhs_decl->getDeclContext();
2432 clang::DeclContext *rhs_decl_ctx = rhs_decl->getDeclContext();
2433 if (lhs_decl_ctx && rhs_decl_ctx) {
2434 while (true) {
2435 if (lhs_decl_ctx && rhs_decl_ctx) {
2436 const clang::Decl::Kind lhs_decl_ctx_kind =
2437 lhs_decl_ctx->getDeclKind();
2438 const clang::Decl::Kind rhs_decl_ctx_kind =
2439 rhs_decl_ctx->getDeclKind();
2440 if (lhs_decl_ctx_kind == rhs_decl_ctx_kind) {
2441 lhs_decl_ctx = lhs_decl_ctx->getParent();
2442 rhs_decl_ctx = rhs_decl_ctx->getParent();
2443
2444 if (lhs_decl_ctx == nullptr && rhs_decl_ctx == nullptr)
2445 break;
2446 } else
2447 return false;
2448 } else
2449 return false;
2450 }
2451
2452 // Now make sure the name of the decls match
2453 clang::NamedDecl *lhs_named_decl =
2454 llvm::dyn_cast<clang::NamedDecl>(lhs_decl);
2455 clang::NamedDecl *rhs_named_decl =
2456 llvm::dyn_cast<clang::NamedDecl>(rhs_decl);
2457 if (lhs_named_decl && rhs_named_decl) {
2458 clang::DeclarationName lhs_decl_name = lhs_named_decl->getDeclName();
2459 clang::DeclarationName rhs_decl_name = rhs_named_decl->getDeclName();
2460 if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) {
2461 if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString())
2462 return false;
2463 } else
2464 return false;
2465 } else
2466 return false;
2467
2468 // We know that the decl context kinds all match, so now we need to
2469 // make sure the names match as well
2470 lhs_decl_ctx = lhs_decl->getDeclContext();
2471 rhs_decl_ctx = rhs_decl->getDeclContext();
2472 while (true) {
2473 switch (lhs_decl_ctx->getDeclKind()) {
2474 case clang::Decl::TranslationUnit:
2475 // We don't care about the translation unit names
2476 return true;
2477 default: {
2478 clang::NamedDecl *lhs_named_decl =
2479 llvm::dyn_cast<clang::NamedDecl>(lhs_decl_ctx);
2480 clang::NamedDecl *rhs_named_decl =
2481 llvm::dyn_cast<clang::NamedDecl>(rhs_decl_ctx);
2482 if (lhs_named_decl && rhs_named_decl) {
2483 clang::DeclarationName lhs_decl_name =
2484 lhs_named_decl->getDeclName();
2485 clang::DeclarationName rhs_decl_name =
2486 rhs_named_decl->getDeclName();
2487 if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) {
2488 if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString())
2489 return false;
2490 } else
2491 return false;
2492 } else
2493 return false;
2494 } break;
2495 }
2496 lhs_decl_ctx = lhs_decl_ctx->getParent();
2497 rhs_decl_ctx = rhs_decl_ctx->getParent();
2498 }
2499 }
2500 }
2501 }
2502 return false;
2503}
2504bool TypeSystemClang::GetCompleteDecl(clang::ASTContext *ast,
2505 clang::Decl *decl) {
2506 if (!decl)
2507 return false;
2508
2509 ExternalASTSource *ast_source = ast->getExternalSource();
2510
2511 if (!ast_source)
2512 return false;
2513
2514 if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) {
2515 if (tag_decl->isCompleteDefinition())
2516 return true;
2517
2518 if (!tag_decl->hasExternalLexicalStorage())
2519 return false;
2520
2521 ast_source->CompleteType(tag_decl);
2522
2523 return !tag_decl->getTypeForDecl()->isIncompleteType();
2524 } else if (clang::ObjCInterfaceDecl *objc_interface_decl =
2525 llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) {
2526 if (objc_interface_decl->getDefinition())
2527 return true;
2528
2529 if (!objc_interface_decl->hasExternalLexicalStorage())
2530 return false;
2531
2532 ast_source->CompleteType(objc_interface_decl);
2533
2534 return !objc_interface_decl->getTypeForDecl()->isIncompleteType();
2535 } else {
2536 return false;
2537 }
2538}
2539
2540void TypeSystemClang::SetMetadataAsUserID(const clang::Decl *decl,
2541 user_id_t user_id) {
2542 ClangASTMetadata meta_data;
2543 meta_data.SetUserID(user_id);
2544 SetMetadata(decl, meta_data);
2545}
2546
2547void TypeSystemClang::SetMetadataAsUserID(const clang::Type *type,
2548 user_id_t user_id) {
2549 ClangASTMetadata meta_data;
2550 meta_data.SetUserID(user_id);
2551 SetMetadata(type, meta_data);
2552}
2553
2554void TypeSystemClang::SetMetadata(const clang::Decl *object,
2555 ClangASTMetadata &metadata) {
2556 m_decl_metadata[object] = metadata;
2557}
2558
2559void TypeSystemClang::SetMetadata(const clang::Type *object,
2560 ClangASTMetadata &metadata) {
2561 m_type_metadata[object] = metadata;
2562}
2563
2564ClangASTMetadata *TypeSystemClang::GetMetadata(const clang::Decl *object) {
2565 auto It = m_decl_metadata.find(object);
2566 if (It != m_decl_metadata.end())
2567 return &It->second;
2568 return nullptr;
2569}
2570
2571ClangASTMetadata *TypeSystemClang::GetMetadata(const clang::Type *object) {
2572 auto It = m_type_metadata.find(object);
2573 if (It != m_type_metadata.end())
2574 return &It->second;
2575 return nullptr;
2576}
2577
2578void TypeSystemClang::SetCXXRecordDeclAccess(const clang::CXXRecordDecl *object,
2579 clang::AccessSpecifier access) {
2580 if (access == clang::AccessSpecifier::AS_none)
2581 m_cxx_record_decl_access.erase(object);
2582 else
2583 m_cxx_record_decl_access[object] = access;
2584}
2585
2586clang::AccessSpecifier
2587TypeSystemClang::GetCXXRecordDeclAccess(const clang::CXXRecordDecl *object) {
2588 auto It = m_cxx_record_decl_access.find(object);
2589 if (It != m_cxx_record_decl_access.end())
2590 return It->second;
2591 return clang::AccessSpecifier::AS_none;
2592}
2593
2594clang::DeclContext *
2595TypeSystemClang::GetDeclContextForType(const CompilerType &type) {
2596 return GetDeclContextForType(ClangUtil::GetQualType(type));
2597}
2598
2599/// Aggressively desugar the provided type, skipping past various kinds of
2600/// syntactic sugar and other constructs one typically wants to ignore.
2601/// The \p mask argument allows one to skip certain kinds of simplifications,
2602/// when one wishes to handle a certain kind of type directly.
2603static QualType
2604RemoveWrappingTypes(QualType type, ArrayRef<clang::Type::TypeClass> mask = {}) {
2605 while (true) {
2606 if (find(mask, type->getTypeClass()) != mask.end())
2607 return type;
2608 switch (type->getTypeClass()) {
2609 // This is not fully correct as _Atomic is more than sugar, but it is
2610 // sufficient for the purposes we care about.
2611 case clang::Type::Atomic:
2612 type = cast<clang::AtomicType>(type)->getValueType();
2613 break;
2614 case clang::Type::Auto:
2615 case clang::Type::Decltype:
2616 case clang::Type::Elaborated:
2617 case clang::Type::Paren:
2618 case clang::Type::SubstTemplateTypeParm:
2619 case clang::Type::TemplateSpecialization:
2620 case clang::Type::Typedef:
2621 case clang::Type::TypeOf:
2622 case clang::Type::TypeOfExpr:
2623 case clang::Type::Using:
2624 type = type->getLocallyUnqualifiedSingleStepDesugaredType();
2625 break;
2626 default:
2627 return type;
2628 }
2629 }
2630}
2631
2632clang::DeclContext *
2633TypeSystemClang::GetDeclContextForType(clang::QualType type) {
2634 if (type.isNull())
2635 return nullptr;
2636
2637 clang::QualType qual_type = RemoveWrappingTypes(type.getCanonicalType());
2638 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2639 switch (type_class) {
2640 case clang::Type::ObjCInterface:
2641 return llvm::cast<clang::ObjCObjectType>(qual_type.getTypePtr())
2642 ->getInterface();
2643 case clang::Type::ObjCObjectPointer:
2644 return GetDeclContextForType(
2645 llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr())
2646 ->getPointeeType());
2647 case clang::Type::Record:
2648 return llvm::cast<clang::RecordType>(qual_type)->getDecl();
2649 case clang::Type::Enum:
2650 return llvm::cast<clang::EnumType>(qual_type)->getDecl();
2651 default:
2652 break;
2653 }
2654 // No DeclContext in this type...
2655 return nullptr;
2656}
2657
2658static bool GetCompleteQualType(clang::ASTContext *ast,
2659 clang::QualType qual_type,
2660 bool allow_completion = true) {
2661 qual_type = RemoveWrappingTypes(qual_type);
2662 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2663 switch (type_class) {
2664 case clang::Type::ConstantArray:
2665 case clang::Type::IncompleteArray:
2666 case clang::Type::VariableArray: {
2667 const clang::ArrayType *array_type =
2668 llvm::dyn_cast<clang::ArrayType>(qual_type.getTypePtr());
2669
2670 if (array_type)
2671 return GetCompleteQualType(ast, array_type->getElementType(),
2672 allow_completion);
2673 } break;
2674 case clang::Type::Record: {
2675 clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
2676 if (cxx_record_decl) {
2677 if (cxx_record_decl->hasExternalLexicalStorage()) {
2678 const bool is_complete = cxx_record_decl->isCompleteDefinition();
2679 const bool fields_loaded =
2680 cxx_record_decl->hasLoadedFieldsFromExternalStorage();
2681 if (is_complete && fields_loaded)
2682 return true;
2683
2684 if (!allow_completion)
2685 return false;
2686
2687 // Call the field_begin() accessor to for it to use the external source
2688 // to load the fields...
2689 clang::ExternalASTSource *external_ast_source =
2690 ast->getExternalSource();
2691 if (external_ast_source) {
2692 external_ast_source->CompleteType(cxx_record_decl);
2693 if (cxx_record_decl->isCompleteDefinition()) {
2694 cxx_record_decl->field_begin();
2695 cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true);
2696 }
2697 }
2698 }
2699 }
2700 const clang::TagType *tag_type =
2701 llvm::cast<clang::TagType>(qual_type.getTypePtr());
2702 return !tag_type->isIncompleteType();
2703 } break;
2704
2705 case clang::Type::Enum: {
2706 const clang::TagType *tag_type =
2707 llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr());
2708 if (tag_type) {
2709 clang::TagDecl *tag_decl = tag_type->getDecl();
2710 if (tag_decl) {
2711 if (tag_decl->getDefinition())
2712 return true;
2713
2714 if (!allow_completion)
2715 return false;
2716
2717 if (tag_decl->hasExternalLexicalStorage()) {
2718 if (ast) {
2719 clang::ExternalASTSource *external_ast_source =
2720 ast->getExternalSource();
2721 if (external_ast_source) {
2722 external_ast_source->CompleteType(tag_decl);
2723 return !tag_type->isIncompleteType();
2724 }
2725 }
2726 }
2727 return false;
2728 }
2729 }
2730
2731 } break;
2732 case clang::Type::ObjCObject:
2733 case clang::Type::ObjCInterface: {
2734 const clang::ObjCObjectType *objc_class_type =
2735 llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
2736 if (objc_class_type) {
2737 clang::ObjCInterfaceDecl *class_interface_decl =
2738 objc_class_type->getInterface();
2739 // We currently can't complete objective C types through the newly added
2740 // ASTContext because it only supports TagDecl objects right now...
2741 if (class_interface_decl) {
2742 if (class_interface_decl->getDefinition())
2743 return true;
2744
2745 if (!allow_completion)
2746 return false;
2747
2748 if (class_interface_decl->hasExternalLexicalStorage()) {
2749 if (ast) {
2750 clang::ExternalASTSource *external_ast_source =
2751 ast->getExternalSource();
2752 if (external_ast_source) {
2753 external_ast_source->CompleteType(class_interface_decl);
2754 return !objc_class_type->isIncompleteType();
2755 }
2756 }
2757 }
2758 return false;
2759 }
2760 }
2761 } break;
2762
2763 case clang::Type::Attributed:
2764 return GetCompleteQualType(
2765 ast, llvm::cast<clang::AttributedType>(qual_type)->getModifiedType(),
2766 allow_completion);
2767
2768 default:
2769 break;
2770 }
2771
2772 return true;
2773}
2774
2775static clang::ObjCIvarDecl::AccessControl
2776ConvertAccessTypeToObjCIvarAccessControl(AccessType access) {
2777 switch (access) {
2778 case eAccessNone:
2779 return clang::ObjCIvarDecl::None;
2780 case eAccessPublic:
2781 return clang::ObjCIvarDecl::Public;
2782 case eAccessPrivate:
2783 return clang::ObjCIvarDecl::Private;
2784 case eAccessProtected:
2785 return clang::ObjCIvarDecl::Protected;
2786 case eAccessPackage:
2787 return clang::ObjCIvarDecl::Package;
2788 }
2789 return clang::ObjCIvarDecl::None;
2790}
2791
2792// Tests
2793
2794#ifndef NDEBUG
2795bool TypeSystemClang::Verify(lldb::opaque_compiler_type_t type) {
2796 return !type || llvm::isa<clang::Type>(GetQualType(type).getTypePtr());
2797}
2798#endif
2799
2800bool TypeSystemClang::IsAggregateType(lldb::opaque_compiler_type_t type) {
2801 clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type)));
2802
2803 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2804 switch (type_class) {
2805 case clang::Type::IncompleteArray:
2806 case clang::Type::VariableArray:
2807 case clang::Type::ConstantArray:
2808 case clang::Type::ExtVector:
2809 case clang::Type::Vector:
2810 case clang::Type::Record:
2811 case clang::Type::ObjCObject:
2812 case clang::Type::ObjCInterface:
2813 return true;
2814 default:
2815 break;
2816 }
2817 // The clang type does have a value
2818 return false;
2819}
2820
2821bool TypeSystemClang::IsAnonymousType(lldb::opaque_compiler_type_t type) {
2822 clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type)));
2823
2824 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2825 switch (type_class) {
2826 case clang::Type::Record: {
2827 if (const clang::RecordType *record_type =
2828 llvm::dyn_cast_or_null<clang::RecordType>(
2829 qual_type.getTypePtrOrNull())) {
2830 if (const clang::RecordDecl *record_decl = record_type->getDecl()) {
2831 return record_decl->isAnonymousStructOrUnion();
2832 }
2833 }
2834 break;
2835 }
2836 default:
2837 break;
2838 }
2839 // The clang type does have a value
2840 return false;
2841}
2842
2843bool TypeSystemClang::IsArrayType(lldb::opaque_compiler_type_t type,
2844 CompilerType *element_type_ptr,
2845 uint64_t *size, bool *is_incomplete) {
2846 clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type)));
2847
2848 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2849 switch (type_class) {
2850 default:
2851 break;
2852
2853 case clang::Type::ConstantArray:
2854 if (element_type_ptr)
2855 element_type_ptr->SetCompilerType(
2856 this, llvm::cast<clang::ConstantArrayType>(qual_type)
2857 ->getElementType()
2858 .getAsOpaquePtr());
2859 if (size)
2860 *size = llvm::cast<clang::ConstantArrayType>(qual_type)
2861 ->getSize()
2862 .getLimitedValue(ULLONG_MAX(9223372036854775807LL*2ULL+1ULL));
2863 if (is_incomplete)
2864 *is_incomplete = false;
2865 return true;
2866
2867 case clang::Type::IncompleteArray:
2868 if (element_type_ptr)
2869 element_type_ptr->SetCompilerType(
2870 this, llvm::cast<clang::IncompleteArrayType>(qual_type)
2871 ->getElementType()
2872 .getAsOpaquePtr());
2873 if (size)
2874 *size = 0;
2875 if (is_incomplete)
2876 *is_incomplete = true;
2877 return true;
2878
2879 case clang::Type::VariableArray:
2880 if (element_type_ptr)
2881 element_type_ptr->SetCompilerType(
2882 this, llvm::cast<clang::VariableArrayType>(qual_type)
2883 ->getElementType()
2884 .getAsOpaquePtr());
2885 if (size)
2886 *size = 0;
2887 if (is_incomplete)
2888 *is_incomplete = false;
2889 return true;
2890
2891 case clang::Type::DependentSizedArray:
2892 if (element_type_ptr)
2893 element_type_ptr->SetCompilerType(
2894 this, llvm::cast<clang::DependentSizedArrayType>(qual_type)
2895 ->getElementType()
2896 .getAsOpaquePtr());
2897 if (size)
2898 *size = 0;
2899 if (is_incomplete)
2900 *is_incomplete = false;
2901 return true;
2902 }
2903 if (element_type_ptr)
2904 element_type_ptr->Clear();
2905 if (size)
2906 *size = 0;
2907 if (is_incomplete)
2908 *is_incomplete = false;
2909 return false;
2910}
2911
2912bool TypeSystemClang::IsVectorType(lldb::opaque_compiler_type_t type,
2913 CompilerType *element_type, uint64_t *size) {
2914 clang::QualType qual_type(GetCanonicalQualType(type));
2915
2916 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2917 switch (type_class) {
2918 case clang::Type::Vector: {
2919 const clang::VectorType *vector_type =
2920 qual_type->getAs<clang::VectorType>();
2921 if (vector_type) {
2922 if (size)
2923 *size = vector_type->getNumElements();
2924 if (element_type)
2925 *element_type = GetType(vector_type->getElementType());
2926 }
2927 return true;
2928 } break;
2929 case clang::Type::ExtVector: {
2930 const clang::ExtVectorType *ext_vector_type =
2931 qual_type->getAs<clang::ExtVectorType>();
2932 if (ext_vector_type) {
2933 if (size)
2934 *size = ext_vector_type->getNumElements();
2935 if (element_type)
2936 *element_type =
2937 CompilerType(this, ext_vector_type->getElementType().getAsOpaquePtr());
2938 }
2939 return true;
2940 }
2941 default:
2942 break;
2943 }
2944 return false;
2945}
2946
2947bool TypeSystemClang::IsRuntimeGeneratedType(
2948 lldb::opaque_compiler_type_t type) {
2949 clang::DeclContext *decl_ctx = GetDeclContextForType(GetQualType(type));
2950 if (!decl_ctx)
2951 return false;
2952
2953 if (!llvm::isa<clang::ObjCInterfaceDecl>(decl_ctx))
2954 return false;
2955
2956 clang::ObjCInterfaceDecl *result_iface_decl =
2957 llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl_ctx);
2958
2959 ClangASTMetadata *ast_metadata = GetMetadata(result_iface_decl);
2960 if (!ast_metadata)
2961 return false;
2962 return (ast_metadata->GetISAPtr() != 0);
2963}
2964
2965bool TypeSystemClang::IsCharType(lldb::opaque_compiler_type_t type) {
2966 return GetQualType(type).getUnqualifiedType()->isCharType();
2967}
2968
2969bool TypeSystemClang::IsCompleteType(lldb::opaque_compiler_type_t type) {
2970 // If the type hasn't been lazily completed yet, complete it now so that we
2971 // can give the caller an accurate answer whether the type actually has a
2972 // definition. Without completing the type now we would just tell the user
2973 // the current (internal) completeness state of the type and most users don't
2974 // care (or even know) about this behavior.
2975 const bool allow_completion = true;
2976 return GetCompleteQualType(&getASTContext(), GetQualType(type),
2977 allow_completion);
2978}
2979
2980bool TypeSystemClang::IsConst(lldb::opaque_compiler_type_t type) {
2981 return GetQualType(type).isConstQualified();
2982}
2983
2984bool TypeSystemClang::IsCStringType(lldb::opaque_compiler_type_t type,
2985 uint32_t &length) {
2986 CompilerType pointee_or_element_clang_type;
2987 length = 0;
2988 Flags type_flags(GetTypeInfo(type, &pointee_or_element_clang_type));
2989
2990 if (!pointee_or_element_clang_type.IsValid())
2991 return false;
2992
2993 if (type_flags.AnySet(eTypeIsArray | eTypeIsPointer)) {
2994 if (pointee_or_element_clang_type.IsCharType()) {
2995 if (type_flags.Test(eTypeIsArray)) {
2996 // We know the size of the array and it could be a C string since it is
2997 // an array of characters
2998 length = llvm::cast<clang::ConstantArrayType>(
2999 GetCanonicalQualType(type).getTypePtr())
3000 ->getSize()
3001 .getLimitedValue();
3002 }
3003 return true;
3004 }
3005 }
3006 return false;
3007}
3008
3009bool TypeSystemClang::IsFunctionType(lldb::opaque_compiler_type_t type) {
3010 if (type) {
3011 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
3012
3013 if (qual_type->isFunctionType()) {
3014 return true;
3015 }
3016
3017 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3018 switch (type_class) {
3019 default:
3020 break;
3021 case clang::Type::LValueReference:
3022 case clang::Type::RValueReference: {
3023 const clang::ReferenceType *reference_type =
3024 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
3025 if (reference_type)
3026 return IsFunctionType(
3027 reference_type->getPointeeType().getAsOpaquePtr());
3028 } break;
3029 }
3030 }
3031 return false;
3032}
3033
3034// Used to detect "Homogeneous Floating-point Aggregates"
3035uint32_t
3036TypeSystemClang::IsHomogeneousAggregate(lldb::opaque_compiler_type_t type,
3037 CompilerType *base_type_ptr) {
3038 if (!type)
3039 return 0;
3040
3041 clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type)));
3042 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3043 switch (type_class) {
3044 case clang::Type::Record:
3045 if (GetCompleteType(type)) {
3046 const clang::CXXRecordDecl *cxx_record_decl =
3047 qual_type->getAsCXXRecordDecl();
3048 if (cxx_record_decl) {
3049 if (cxx_record_decl->getNumBases() || cxx_record_decl->isDynamicClass())
3050 return 0;
3051 }
3052 const clang::RecordType *record_type =
3053 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
3054 if (record_type) {
3055 const clang::RecordDecl *record_decl = record_type->getDecl();
3056 if (record_decl) {
3057 // We are looking for a structure that contains only floating point
3058 // types
3059 clang::RecordDecl::field_iterator field_pos,
3060 field_end = record_decl->field_end();
3061 uint32_t num_fields = 0;
3062 bool is_hva = false;
3063 bool is_hfa = false;
3064 clang::QualType base_qual_type;
3065 uint64_t base_bitwidth = 0;
3066 for (field_pos = record_decl->field_begin(); field_pos != field_end;
3067 ++field_pos) {
3068 clang::QualType field_qual_type = field_pos->getType();
3069 uint64_t field_bitwidth = getASTContext().getTypeSize(qual_type);
3070 if (field_qual_type->isFloatingType()) {
3071 if (field_qual_type->isComplexType())
3072 return 0;
3073 else {
3074 if (num_fields == 0)
3075 base_qual_type = field_qual_type;
3076 else {
3077 if (is_hva)
3078 return 0;
3079 is_hfa = true;
3080 if (field_qual_type.getTypePtr() !=
3081 base_qual_type.getTypePtr())
3082 return 0;
3083 }
3084 }
3085 } else if (field_qual_type->isVectorType() ||
3086 field_qual_type->isExtVectorType()) {
3087 if (num_fields == 0) {
3088 base_qual_type = field_qual_type;
3089 base_bitwidth = field_bitwidth;
3090 } else {
3091 if (is_hfa)
3092 return 0;
3093 is_hva = true;
3094 if (base_bitwidth != field_bitwidth)
3095 return 0;
3096 if (field_qual_type.getTypePtr() != base_qual_type.getTypePtr())
3097 return 0;
3098 }
3099 } else
3100 return 0;
3101 ++num_fields;
3102 }
3103 if (base_type_ptr)
3104 *base_type_ptr = CompilerType(this, base_qual_type.getAsOpaquePtr());
3105 return num_fields;
3106 }
3107 }
3108 }
3109 break;
3110
3111 default:
3112 break;
3113 }
3114 return 0;
3115}
3116
3117size_t TypeSystemClang::GetNumberOfFunctionArguments(
3118 lldb::opaque_compiler_type_t type) {
3119 if (type) {
3120 clang::QualType qual_type(GetCanonicalQualType(type));
3121 const clang::FunctionProtoType *func =
3122 llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
3123 if (func)
3124 return func->getNumParams();
3125 }
3126 return 0;
3127}
3128
3129CompilerType
3130TypeSystemClang::GetFunctionArgumentAtIndex(lldb::opaque_compiler_type_t type,
3131 const size_t index) {
3132 if (type) {
3133 clang::QualType qual_type(GetQualType(type));
3134 const clang::FunctionProtoType *func =
3135 llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
3136 if (func) {
3137 if (index < func->getNumParams())
3138 return CompilerType(this, func->getParamType(index).getAsOpaquePtr());
3139 }
3140 }
3141 return CompilerType();
3142}
3143
3144bool TypeSystemClang::IsFunctionPointerType(lldb::opaque_compiler_type_t type) {
3145 if (type) {
3146 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
3147
3148 if (qual_type->isFunctionPointerType())
3149 return true;
3150
3151 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3152 switch (type_class) {
3153 default:
3154 break;
3155
3156 case clang::Type::LValueReference:
3157 case clang::Type::RValueReference: {
3158 const clang::ReferenceType *reference_type =
3159 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
3160 if (reference_type)
3161 return IsFunctionPointerType(
3162 reference_type->getPointeeType().getAsOpaquePtr());
3163 } break;
3164 }
3165 }
3166 return false;
3167}
3168
3169bool TypeSystemClang::IsBlockPointerType(
3170 lldb::opaque_compiler_type_t type,
3171 CompilerType *function_pointer_type_ptr) {
3172 if (type) {
3173 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
3174
3175 if (qual_type->isBlockPointerType()) {
3176 if (function_pointer_type_ptr) {
3177 const clang::BlockPointerType *block_pointer_type =
3178 qual_type->getAs<clang::BlockPointerType>();
3179 QualType pointee_type = block_pointer_type->getPointeeType();
3180 QualType function_pointer_type = m_ast_up->getPointerType(pointee_type);
3181 *function_pointer_type_ptr =
3182 CompilerType(this, function_pointer_type.getAsOpaquePtr());
3183 }
3184 return true;
3185 }
3186
3187 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3188 switch (type_class) {
3189 default:
3190 break;
3191
3192 case clang::Type::LValueReference:
3193 case clang::Type::RValueReference: {
3194 const clang::ReferenceType *reference_type =
3195 llvm::cast<clang::ReferenceType>(qual_type.getTypePtr());
3196 if (reference_type)
3197 return IsBlockPointerType(
3198 reference_type->getPointeeType().getAsOpaquePtr(),
3199 function_pointer_type_ptr);
3200 } break;
3201 }
3202 }
3203 return false;
3204}
3205
3206bool TypeSystemClang::IsIntegerType(lldb::opaque_compiler_type_t type,
3207 bool &is_signed) {
3208 if (!type)
3209 return false;
3210
3211 clang::QualType qual_type(GetCanonicalQualType(type));
3212 const clang::BuiltinType *builtin_type =
3213 llvm::dyn_cast<clang::BuiltinType>(qual_type->getCanonicalTypeInternal());
3214
3215 if (builtin_type) {
3216 if (builtin_type->isInteger()) {
3217 is_signed = builtin_type->isSignedInteger();
3218 return true;
3219 }
3220 }
3221
3222 return false;
3223}
3224
3225bool TypeSystemClang::IsEnumerationType(lldb::opaque_compiler_type_t type,
3226 bool &is_signed) {
3227 if (type) {
3228 const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>(
3229 GetCanonicalQualType(type)->getCanonicalTypeInternal());
3230
3231 if (enum_type) {
3232 IsIntegerType(enum_type->getDecl()->getIntegerType().getAsOpaquePtr(),
3233 is_signed);
3234 return true;
3235 }
3236 }
3237
3238 return false;
3239}
3240
3241bool TypeSystemClang::IsScopedEnumerationType(
3242 lldb::opaque_compiler_type_t type) {
3243 if (type) {
3244 const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>(
3245 GetCanonicalQualType(type)->getCanonicalTypeInternal());
3246
3247 if (enum_type) {
3248 return enum_type->isScopedEnumeralType();
3249 }
3250 }
3251
3252 return false;
3253}
3254
3255bool TypeSystemClang::IsPointerType(lldb::opaque_compiler_type_t type,
3256 CompilerType *pointee_type) {
3257 if (type) {
3258 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
3259 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3260 switch (type_class) {
3261 case clang::Type::Builtin:
3262 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
3263 default:
3264 break;
3265 case clang::BuiltinType::ObjCId:
3266 case clang::BuiltinType::ObjCClass:
3267 return true;
3268 }
3269 return false;
3270 case clang::Type::ObjCObjectPointer:
3271 if (pointee_type)
3272 pointee_type->SetCompilerType(
3273 this, llvm::cast<clang::ObjCObjectPointerType>(qual_type)
3274 ->getPointeeType()
3275 .getAsOpaquePtr());
3276 return true;
3277 case clang::Type::BlockPointer:
3278 if (pointee_type)
3279 pointee_type->SetCompilerType(
3280 this, llvm::cast<clang::BlockPointerType>(qual_type)
3281 ->getPointeeType()
3282 .getAsOpaquePtr());
3283 return true;
3284 case clang::Type::Pointer:
3285 if (pointee_type)
3286 pointee_type->SetCompilerType(this,
3287 llvm::cast<clang::PointerType>(qual_type)
3288 ->getPointeeType()
3289 .getAsOpaquePtr());
3290 return true;
3291 case clang::Type::MemberPointer:
3292 if (pointee_type)
3293 pointee_type->SetCompilerType(
3294 this, llvm::cast<clang::MemberPointerType>(qual_type)
3295 ->getPointeeType()
3296 .getAsOpaquePtr());
3297 return true;
3298 default:
3299 break;
3300 }
3301 }
3302 if (pointee_type)
3303 pointee_type->Clear();
3304 return false;
3305}
3306
3307bool TypeSystemClang::IsPointerOrReferenceType(
3308 lldb::opaque_compiler_type_t type, CompilerType *pointee_type) {
3309 if (type) {
3310 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
3311 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3312 switch (type_class) {
3313 case clang::Type::Builtin:
3314 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
3315 default:
3316 break;
3317 case clang::BuiltinType::ObjCId:
3318 case clang::BuiltinType::ObjCClass:
3319 return true;
3320 }
3321 return false;
3322 case clang::Type::ObjCObjectPointer:
3323 if (pointee_type)
3324 pointee_type->SetCompilerType(
3325 this, llvm::cast<clang::ObjCObjectPointerType>(qual_type)
3326 ->getPointeeType().getAsOpaquePtr());
3327 return true;
3328 case clang::Type::BlockPointer:
3329 if (pointee_type)
3330 pointee_type->SetCompilerType(
3331 this, llvm::cast<clang::BlockPointerType>(qual_type)
3332 ->getPointeeType()
3333 .getAsOpaquePtr());
3334 return true;
3335 case clang::Type::Pointer:
3336 if (pointee_type)
3337 pointee_type->SetCompilerType(this,
3338 llvm::cast<clang::PointerType>(qual_type)
3339 ->getPointeeType()
3340 .getAsOpaquePtr());
3341 return true;
3342 case clang::Type::MemberPointer:
3343 if (pointee_type)
3344 pointee_type->SetCompilerType(
3345 this, llvm::cast<clang::MemberPointerType>(qual_type)
3346 ->getPointeeType()
3347 .getAsOpaquePtr());
3348 return true;
3349 case clang::Type::LValueReference:
3350 if (pointee_type)
3351 pointee_type->SetCompilerType(
3352 this, llvm::cast<clang::LValueReferenceType>(qual_type)
3353 ->desugar()
3354 .getAsOpaquePtr());
3355 return true;
3356 case clang::Type::RValueReference:
3357 if (pointee_type)
3358 pointee_type->SetCompilerType(
3359 this, llvm::cast<clang::RValueReferenceType>(qual_type)
3360 ->desugar()
3361 .getAsOpaquePtr());
3362 return true;
3363 default:
3364 break;
3365 }
3366 }
3367 if (pointee_type)
3368 pointee_type->Clear();
3369 return false;
3370}
3371
3372bool TypeSystemClang::IsReferenceType(lldb::opaque_compiler_type_t type,
3373 CompilerType *pointee_type,
3374 bool *is_rvalue) {
3375 if (type) {
3376 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
3377 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3378
3379 switch (type_class) {
3380 case clang::Type::LValueReference:
3381 if (pointee_type)
3382 pointee_type->SetCompilerType(
3383 this, llvm::cast<clang::LValueReferenceType>(qual_type)
3384 ->desugar()
3385 .getAsOpaquePtr());
3386 if (is_rvalue)
3387 *is_rvalue = false;
3388 return true;
3389 case clang::Type::RValueReference:
3390 if (pointee_type)
3391 pointee_type->SetCompilerType(
3392 this, llvm::cast<clang::RValueReferenceType>(qual_type)
3393 ->desugar()
3394 .getAsOpaquePtr());
3395 if (is_rvalue)
3396 *is_rvalue = true;
3397 return true;
3398
3399 default:
3400 break;
3401 }
3402 }
3403 if (pointee_type)
3404 pointee_type->Clear();
3405 return false;
3406}
3407
3408bool TypeSystemClang::IsFloatingPointType(lldb::opaque_compiler_type_t type,
3409 uint32_t &count, bool &is_complex) {
3410 if (type) {
3411 clang::QualType qual_type(GetCanonicalQualType(type));
3412
3413 if (const clang::BuiltinType *BT = llvm::dyn_cast<clang::BuiltinType>(
3414 qual_type->getCanonicalTypeInternal())) {
3415 clang::BuiltinType::Kind kind = BT->getKind();
3416 if (kind >= clang::BuiltinType::Float &&
3417 kind <= clang::BuiltinType::LongDouble) {
3418 count = 1;
3419 is_complex = false;
3420 return true;
3421 }
3422 } else if (const clang::ComplexType *CT =
3423 llvm::dyn_cast<clang::ComplexType>(
3424 qual_type->getCanonicalTypeInternal())) {
3425 if (IsFloatingPointType(CT->getElementType().getAsOpaquePtr(), count,
3426 is_complex)) {
3427 count = 2;
3428 is_complex = true;
3429 return true;
3430 }
3431 } else if (const clang::VectorType *VT = llvm::dyn_cast<clang::VectorType>(
3432 qual_type->getCanonicalTypeInternal())) {
3433 if (IsFloatingPointType(VT->getElementType().getAsOpaquePtr(), count,
3434 is_complex)) {
3435 count = VT->getNumElements();
3436 is_complex = false;
3437 return true;
3438 }
3439 }
3440 }
3441 count = 0;
3442 is_complex = false;
3443 return false;
3444}
3445
3446bool TypeSystemClang::IsDefined(lldb::opaque_compiler_type_t type) {
3447 if (!type)
3448 return false;
3449
3450 clang::QualType qual_type(GetQualType(type));
3451 const clang::TagType *tag_type =
3452 llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr());
3453 if (tag_type) {
3454 clang::TagDecl *tag_decl = tag_type->getDecl();
3455 if (tag_decl)
3456 return tag_decl->isCompleteDefinition();
3457 return false;
3458 } else {
3459 const clang::ObjCObjectType *objc_class_type =
3460 llvm::dyn_cast<clang::ObjCObjectType>(qual_type);
3461 if (objc_class_type) {
3462 clang::ObjCInterfaceDecl *class_interface_decl =
3463 objc_class_type->getInterface();
3464 if (class_interface_decl)
3465 return class_interface_decl->getDefinition() != nullptr;
3466 return false;
3467 }
3468 }
3469 return true;
3470}
3471
3472bool TypeSystemClang::IsObjCClassType(const CompilerType &type) {
3473 if (ClangUtil::IsClangType(type)) {
3474 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3475
3476 const clang::ObjCObjectPointerType *obj_pointer_type =
3477 llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type);
3478
3479 if (obj_pointer_type)
3480 return obj_pointer_type->isObjCClassType();
3481 }
3482 return false;
3483}
3484
3485bool TypeSystemClang::IsObjCObjectOrInterfaceType(const CompilerType &type) {
3486 if (ClangUtil::IsClangType(type))
3487 return ClangUtil::GetCanonicalQualType(type)->isObjCObjectOrInterfaceType();
3488 return false;
3489}
3490
3491bool TypeSystemClang::IsClassType(lldb::opaque_compiler_type_t type) {
3492 if (!type)
3493 return false;
3494 clang::QualType qual_type(GetCanonicalQualType(type));
3495 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3496 return (type_class == clang::Type::Record);
3497}
3498
3499bool TypeSystemClang::IsEnumType(lldb::opaque_compiler_type_t type) {
3500 if (!type)
3501 return false;
3502 clang::QualType qual_type(GetCanonicalQualType(type));
3503 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3504 return (type_class == clang::Type::Enum);
3505}
3506
3507bool TypeSystemClang::IsPolymorphicClass(lldb::opaque_compiler_type_t type) {
3508 if (type) {
3509 clang::QualType qual_type(GetCanonicalQualType(type));
3510 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3511 switch (type_class) {
3512 case clang::Type::Record:
3513 if (GetCompleteType(type)) {
3514 const clang::RecordType *record_type =
3515 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
3516 const clang::RecordDecl *record_decl = record_type->getDecl();
3517 if (record_decl) {
3518 const clang::CXXRecordDecl *cxx_record_decl =
3519 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
3520 if (cxx_record_decl)
3521 return cxx_record_decl->isPolymorphic();
3522 }
3523 }
3524 break;
3525
3526 default:
3527 break;
3528 }
3529 }
3530 return false;
3531}
3532
3533bool TypeSystemClang::IsPossibleDynamicType(lldb::opaque_compiler_type_t type,
3534 CompilerType *dynamic_pointee_type,
3535 bool check_cplusplus,
3536 bool check_objc) {
3537 clang::QualType pointee_qual_type;
3538 if (type) {
3539 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
3540 bool success = false;
3541 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3542 switch (type_class) {
3543 case clang::Type::Builtin:
3544 if (check_objc &&
3545 llvm::cast<clang::BuiltinType>(qual_type)->getKind() ==
3546 clang::BuiltinType::ObjCId) {
3547 if (dynamic_pointee_type)
3548 dynamic_pointee_type->SetCompilerType(this, type);
3549 return true;
3550 }
3551 break;
3552
3553 case clang::Type::ObjCObjectPointer:
3554 if (check_objc) {
3555 if (const auto *objc_pointee_type =
3556 qual_type->getPointeeType().getTypePtrOrNull()) {
3557 if (const auto *objc_object_type =
3558 llvm::dyn_cast_or_null<clang::ObjCObjectType>(
3559 objc_pointee_type)) {
3560 if (objc_object_type->isObjCClass())
3561 return false;
3562 }
3563 }
3564 if (dynamic_pointee_type)
3565 dynamic_pointee_type->SetCompilerType(
3566 this, llvm::cast<clang::ObjCObjectPointerType>(qual_type)
3567 ->getPointeeType()
3568 .getAsOpaquePtr());
3569 return true;
3570 }
3571 break;
3572
3573 case clang::Type::Pointer:
3574 pointee_qual_type =
3575 llvm::cast<clang::PointerType>(qual_type)->getPointeeType();
3576 success = true;
3577 break;
3578
3579 case clang::Type::LValueReference:
3580 case clang::Type::RValueReference:
3581 pointee_qual_type =
3582 llvm::cast<clang::ReferenceType>(qual_type)->getPointeeType();
3583 success = true;
3584 break;
3585
3586 default:
3587 break;
3588 }
3589
3590 if (success) {
3591 // Check to make sure what we are pointing too is a possible dynamic C++
3592 // type We currently accept any "void *" (in case we have a class that
3593 // has been watered down to an opaque pointer) and virtual C++ classes.
3594 const clang::Type::TypeClass pointee_type_class =
3595 pointee_qual_type.getCanonicalType()->getTypeClass();
3596 switch (pointee_type_class) {
3597 case clang::Type::Builtin:
3598 switch (llvm::cast<clang::BuiltinType>(pointee_qual_type)->getKind()) {
3599 case clang::BuiltinType::UnknownAny:
3600 case clang::BuiltinType::Void:
3601 if (dynamic_pointee_type)
3602 dynamic_pointee_type->SetCompilerType(
3603 this, pointee_qual_type.getAsOpaquePtr());
3604 return true;
3605 default:
3606 break;
3607 }
3608 break;
3609
3610 case clang::Type::Record:
3611 if (check_cplusplus) {
3612 clang::CXXRecordDecl *cxx_record_decl =
3613 pointee_qual_type->getAsCXXRecordDecl();
3614 if (cxx_record_decl) {
3615 bool is_complete = cxx_record_decl->isCompleteDefinition();
3616
3617 if (is_complete)
3618 success = cxx_record_decl->isDynamicClass();
3619 else {
3620 ClangASTMetadata *metadata = GetMetadata(cxx_record_decl);
3621 if (metadata)
3622 success = metadata->GetIsDynamicCXXType();
3623 else {
3624 is_complete = GetType(pointee_qual_type).GetCompleteType();
3625 if (is_complete)
3626 success = cxx_record_decl->isDynamicClass();
3627 else
3628 success = false;
3629 }
3630 }
3631
3632 if (success) {
3633 if (dynamic_pointee_type)
3634 dynamic_pointee_type->SetCompilerType(
3635 this, pointee_qual_type.getAsOpaquePtr());
3636 return true;
3637 }
3638 }
3639 }
3640 break;
3641
3642 case clang::Type::ObjCObject:
3643 case clang::Type::ObjCInterface:
3644 if (check_objc) {
3645 if (dynamic_pointee_type)
3646 dynamic_pointee_type->SetCompilerType(
3647 this, pointee_qual_type.getAsOpaquePtr());
3648 return true;
3649 }
3650 break;
3651
3652 default:
3653 break;
3654 }
3655 }
3656 }
3657 if (dynamic_pointee_type)
3658 dynamic_pointee_type->Clear();
3659 return false;
3660}
3661
3662bool TypeSystemClang::IsScalarType(lldb::opaque_compiler_type_t type) {
3663 if (!type)
3664 return false;
3665
3666 return (GetTypeInfo(type, nullptr) & eTypeIsScalar) != 0;
3667}
3668
3669bool TypeSystemClang::IsTypedefType(lldb::opaque_compiler_type_t type) {
3670 if (!type)
3671 return false;
3672 return RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef})
3673 ->getTypeClass() == clang::Type::Typedef;
3674}
3675
3676bool TypeSystemClang::IsVoidType(lldb::opaque_compiler_type_t type) {
3677 if (!type)
3678 return false;
3679 return GetCanonicalQualType(type)->isVoidType();
3680}
3681
3682bool TypeSystemClang::CanPassInRegisters(const CompilerType &type) {
3683 if (auto *record_decl =
3684 TypeSystemClang::GetAsRecordDecl(type)) {
3685 return record_decl->canPassInRegisters();
3686 }
3687 return false;
3688}
3689
3690bool TypeSystemClang::SupportsLanguage(lldb::LanguageType language) {
3691 return TypeSystemClangSupportsLanguage(language);
3692}
3693
3694Optional<std::string>
3695TypeSystemClang::GetCXXClassName(const CompilerType &type) {
3696 if (!type)
3697 return llvm::None;
3698
3699 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3700 if (qual_type.isNull())
3701 return llvm::None;
3702
3703 clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
3704 if (!cxx_record_decl)
3705 return llvm::None;
3706
3707 return std::string(cxx_record_decl->getIdentifier()->getNameStart());
3708}
3709
3710bool TypeSystemClang::IsCXXClassType(const CompilerType &type) {
3711 if (!type)
3712 return false;
3713
3714 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3715 return !qual_type.isNull() && qual_type->getAsCXXRecordDecl() != nullptr;
3716}
3717
3718bool TypeSystemClang::IsBeingDefined(lldb::opaque_compiler_type_t type) {
3719 if (!type)
3720 return false;
3721 clang::QualType qual_type(GetCanonicalQualType(type));
3722 const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type);
3723 if (tag_type)
3724 return tag_type->isBeingDefined();
3725 return false;
3726}
3727
3728bool TypeSystemClang::IsObjCObjectPointerType(const CompilerType &type,
3729 CompilerType *class_type_ptr) {
3730 if (!ClangUtil::IsClangType(type))
3731 return false;
3732
3733 clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type));
3734
3735 if (!qual_type.isNull() && qual_type->isObjCObjectPointerType()) {
3736 if (class_type_ptr) {
3737 if (!qual_type->isObjCClassType() && !qual_type->isObjCIdType()) {
3738 const clang::ObjCObjectPointerType *obj_pointer_type =
3739 llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type);
3740 if (obj_pointer_type == nullptr)
3741 class_type_ptr->Clear();
3742 else
3743 class_type_ptr->SetCompilerType(
3744 type.GetTypeSystem(),
3745 clang::QualType(obj_pointer_type->getInterfaceType(), 0)
3746 .getAsOpaquePtr());
3747 }
3748 }
3749 return true;
3750 }
3751 if (class_type_ptr)
3752 class_type_ptr->Clear();
3753 return false;
3754}
3755
3756// Type Completion
3757
3758bool TypeSystemClang::GetCompleteType(lldb::opaque_compiler_type_t type) {
3759 if (!type)
3760 return false;
3761 const bool allow_completion = true;
3762 return GetCompleteQualType(&getASTContext(), GetQualType(type),
3763 allow_completion);
3764}
3765
3766ConstString TypeSystemClang::GetTypeName(lldb::opaque_compiler_type_t type) {
3767 if (!type)
3768 return ConstString();
3769
3770 clang::QualType qual_type(GetQualType(type));
3771
3772 // Remove certain type sugar from the name. Sugar such as elaborated types
3773 // or template types which only serve to improve diagnostics shouldn't
3774 // act as their own types from the user's perspective (e.g., formatter
3775 // shouldn't format a variable differently depending on how the ser has
3776 // specified the type. '::Type' and 'Type' should behave the same).
3777 // Typedefs and atomic derived types are not removed as they are actually
3778 // useful for identifiying specific types.
3779 qual_type = RemoveWrappingTypes(qual_type,
3780 {clang::Type::Typedef, clang::Type::Atomic});
3781
3782 // For a typedef just return the qualified name.
3783 if (const auto *typedef_type = qual_type->getAs<clang::TypedefType>()) {
3784 const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl();
3785 return ConstString(GetTypeNameForDecl(typedef_decl));
3786 }
3787
3788 return ConstString(qual_type.getAsString(GetTypePrintingPolicy()));
3789}
3790
3791ConstString
3792TypeSystemClang::GetDisplayTypeName(lldb::opaque_compiler_type_t type) {
3793 if (!type)
3794 return ConstString();
3795
3796 clang::QualType qual_type(GetQualType(type));
3797 clang::PrintingPolicy printing_policy(getASTContext().getPrintingPolicy());
3798 printing_policy.SuppressTagKeyword = true;
3799 printing_policy.SuppressScope = false;
3800 printing_policy.SuppressUnwrittenScope = true;
3801 printing_policy.SuppressInlineNamespace = true;
3802 return ConstString(qual_type.getAsString(printing_policy));
3803}
3804
3805uint32_t
3806TypeSystemClang::GetTypeInfo(lldb::opaque_compiler_type_t type,
3807 CompilerType *pointee_or_element_clang_type) {
3808 if (!type)
3809 return 0;
3810
3811 if (pointee_or_element_clang_type)
3812 pointee_or_element_clang_type->Clear();
3813
3814 clang::QualType qual_type =
3815 RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef});
3816
3817 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3818 switch (type_class) {
3819 case clang::Type::Attributed:
3820 return GetTypeInfo(
3821 qual_type->getAs<clang::AttributedType>()
3822 ->getModifiedType().getAsOpaquePtr(),
3823 pointee_or_element_clang_type);
3824 case clang::Type::Builtin: {
3825 const clang::BuiltinType *builtin_type = llvm::dyn_cast<clang::BuiltinType>(
3826 qual_type->getCanonicalTypeInternal());
3827
3828 uint32_t builtin_type_flags = eTypeIsBuiltIn | eTypeHasValue;
3829 switch (builtin_type->getKind()) {
3830 case clang::BuiltinType::ObjCId:
3831 case clang::BuiltinType::ObjCClass:
3832 if (pointee_or_element_clang_type)
3833 pointee_or_element_clang_type->SetCompilerType(
3834 this, getASTContext().ObjCBuiltinClassTy.getAsOpaquePtr());
3835 builtin_type_flags |= eTypeIsPointer | eTypeIsObjC;
3836 break;
3837
3838 case clang::BuiltinType::ObjCSel:
3839 if (pointee_or_element_clang_type)
3840 pointee_or_element_clang_type->SetCompilerType(
3841 this, getASTContext().CharTy.getAsOpaquePtr());
3842 builtin_type_flags |= eTypeIsPointer | eTypeIsObjC;
3843 break;
3844
3845 case clang::BuiltinType::Bool:
3846 case clang::BuiltinType::Char_U:
3847 case clang::BuiltinType::UChar:
3848 case clang::BuiltinType::WChar_U:
3849 case clang::BuiltinType::Char16:
3850 case clang::BuiltinType::Char32:
3851 case clang::BuiltinType::UShort:
3852 case clang::BuiltinType::UInt:
3853 case clang::BuiltinType::ULong:
3854 case clang::BuiltinType::ULongLong:
3855 case clang::BuiltinType::UInt128:
3856 case clang::BuiltinType::Char_S:
3857 case clang::BuiltinType::SChar:
3858 case clang::BuiltinType::WChar_S:
3859 case clang::BuiltinType::Short:
3860 case clang::BuiltinType::Int:
3861 case clang::BuiltinType::Long:
3862 case clang::BuiltinType::LongLong:
3863 case clang::BuiltinType::Int128:
3864 case clang::BuiltinType::Float:
3865 case clang::BuiltinType::Double:
3866 case clang::BuiltinType::LongDouble:
3867 builtin_type_flags |= eTypeIsScalar;
3868 if (builtin_type->isInteger()) {
3869 builtin_type_flags |= eTypeIsInteger;
3870 if (builtin_type->isSignedInteger())
3871 builtin_type_flags |= eTypeIsSigned;
3872 } else if (builtin_type->isFloatingPoint())
3873 builtin_type_flags |= eTypeIsFloat;
3874 break;
3875 default:
3876 break;
3877 }
3878 return builtin_type_flags;
3879 }
3880
3881 case clang::Type::BlockPointer:
3882 if (pointee_or_element_clang_type)
3883 pointee_or_element_clang_type->SetCompilerType(
3884 this, qual_type->getPointeeType().getAsOpaquePtr());
3885 return eTypeIsPointer | eTypeHasChildren | eTypeIsBlock;
3886
3887 case clang::Type::Complex: {
3888 uint32_t complex_type_flags =
3889 eTypeIsBuiltIn | eTypeHasValue | eTypeIsComplex;
3890 const clang::ComplexType *complex_type = llvm::dyn_cast<clang::ComplexType>(
3891 qual_type->getCanonicalTypeInternal());
3892 if (complex_type) {
3893 clang::QualType complex_element_type(complex_type->getElementType());
3894 if (complex_element_type->isIntegerType())
3895 complex_type_flags |= eTypeIsFloat;
3896 else if (complex_element_type->isFloatingType())
3897 complex_type_flags |= eTypeIsInteger;
3898 }
3899 return complex_type_flags;
3900 } break;
3901
3902 case clang::Type::ConstantArray:
3903 case clang::Type::DependentSizedArray:
3904 case clang::Type::IncompleteArray:
3905 case clang::Type::VariableArray:
3906 if (pointee_or_element_clang_type)
3907 pointee_or_element_clang_type->SetCompilerType(
3908 this, llvm::cast<clang::ArrayType>(qual_type.getTypePtr())
3909 ->getElementType()
3910 .getAsOpaquePtr());
3911 return eTypeHasChildren | eTypeIsArray;
3912
3913 case clang::Type::DependentName:
3914 return 0;
3915 case clang::Type::DependentSizedExtVector:
3916 return eTypeHasChildren | eTypeIsVector;
3917 case clang::Type::DependentTemplateSpecialization:
3918 return eTypeIsTemplate;
3919
3920 case clang::Type::Enum:
3921 if (pointee_or_element_clang_type)
3922 pointee_or_element_clang_type->SetCompilerType(
3923 this, llvm::cast<clang::EnumType>(qual_type)
3924 ->getDecl()
3925 ->getIntegerType()
3926 .getAsOpaquePtr());
3927 return eTypeIsEnumeration | eTypeHasValue;
3928
3929 case clang::Type::FunctionProto:
3930 return eTypeIsFuncPrototype | eTypeHasValue;
3931 case clang::Type::FunctionNoProto:
3932 return eTypeIsFuncPrototype | eTypeHasValue;
3933 case clang::Type::InjectedClassName:
3934 return 0;
3935
3936 case clang::Type::LValueReference:
3937 case clang::Type::RValueReference:
3938 if (pointee_or_element_clang_type)
3939 pointee_or_element_clang_type->SetCompilerType(
3940 this, llvm::cast<clang::ReferenceType>(qual_type.getTypePtr())
3941 ->getPointeeType()
3942 .getAsOpaquePtr());
3943 return eTypeHasChildren | eTypeIsReference | eTypeHasValue;
3944
3945 case clang::Type::MemberPointer:
3946 return eTypeIsPointer | eTypeIsMember | eTypeHasValue;
3947
3948 case clang::Type::ObjCObjectPointer:
3949 if (pointee_or_element_clang_type)
3950 pointee_or_element_clang_type->SetCompilerType(
3951 this, qual_type->getPointeeType().getAsOpaquePtr());
3952 return eTypeHasChildren | eTypeIsObjC | eTypeIsClass | eTypeIsPointer |
3953 eTypeHasValue;
3954
3955 case clang::Type::ObjCObject:
3956 return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
3957 case clang::Type::ObjCInterface:
3958 return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
3959
3960 case clang::Type::Pointer:
3961 if (pointee_or_element_clang_type)
3962 pointee_or_element_clang_type->SetCompilerType(
3963 this, qual_type->getPointeeType().getAsOpaquePtr());
3964 return eTypeHasChildren | eTypeIsPointer | eTypeHasValue;
3965
3966 case clang::Type::Record:
3967 if (qual_type->getAsCXXRecordDecl())
3968 return eTypeHasChildren | eTypeIsClass | eTypeIsCPlusPlus;
3969 else
3970 return eTypeHasChildren | eTypeIsStructUnion;
3971 break;
3972 case clang::Type::SubstTemplateTypeParm:
3973 return eTypeIsTemplate;
3974 case clang::Type::TemplateTypeParm:
3975 return eTypeIsTemplate;
3976 case clang::Type::TemplateSpecialization:
3977 return eTypeIsTemplate;
3978
3979 case clang::Type::Typedef:
3980 return eTypeIsTypedef | GetType(llvm::cast<clang::TypedefType>(qual_type)
3981 ->getDecl()
3982 ->getUnderlyingType())
3983 .GetTypeInfo(pointee_or_element_clang_type);
3984 case clang::Type::UnresolvedUsing:
3985 return 0;
3986
3987 case clang::Type::ExtVector:
3988 case clang::Type::Vector: {
3989 uint32_t vector_type_flags = eTypeHasChildren | eTypeIsVector;
3990 const clang::VectorType *vector_type = llvm::dyn_cast<clang::VectorType>(
3991 qual_type->getCanonicalTypeInternal());
3992 if (vector_type) {
3993 if (vector_type->isIntegerType())
3994 vector_type_flags |= eTypeIsFloat;
3995 else if (vector_type->isFloatingType())
3996 vector_type_flags |= eTypeIsInteger;
3997 }
3998 return vector_type_flags;
3999 }
4000 default:
4001 return 0;
4002 }
4003 return 0;
4004}
4005
4006lldb::LanguageType
4007TypeSystemClang::GetMinimumLanguage(lldb::opaque_compiler_type_t type) {
4008 if (!type)
4009 return lldb::eLanguageTypeC;
4010
4011 // If the type is a reference, then resolve it to what it refers to first:
4012 clang::QualType qual_type(GetCanonicalQualType(type).getNonReferenceType());
4013 if (qual_type->isAnyPointerType()) {
4014 if (qual_type->isObjCObjectPointerType())
4015 return lldb::eLanguageTypeObjC;
4016 if (qual_type->getPointeeCXXRecordDecl())
4017 return lldb::eLanguageTypeC_plus_plus;
4018
4019 clang::QualType pointee_type(qual_type->getPointeeType());
4020 if (pointee_type->getPointeeCXXRecordDecl())
4021 return lldb::eLanguageTypeC_plus_plus;
4022 if (pointee_type->isObjCObjectOrInterfaceType())
4023 return lldb::eLanguageTypeObjC;
4024 if (pointee_type->isObjCClassType())
4025 return lldb::eLanguageTypeObjC;
4026 if (pointee_type.getTypePtr() ==
4027 getASTContext().ObjCBuiltinIdTy.getTypePtr())
4028 return lldb::eLanguageTypeObjC;
4029 } else {
4030 if (qual_type->isObjCObjectOrInterfaceType())
4031 return lldb::eLanguageTypeObjC;
4032 if (qual_type->getAsCXXRecordDecl())
4033 return lldb::eLanguageTypeC_plus_plus;
4034 switch (qual_type->getTypeClass()) {
4035 default:
4036 break;
4037 case clang::Type::Builtin:
4038 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
4039 default:
4040 case clang::BuiltinType::Void:
4041 case clang::BuiltinType::Bool:
4042 case clang::BuiltinType::Char_U:
4043 case clang::BuiltinType::UChar:
4044 case clang::BuiltinType::WChar_U:
4045 case clang::BuiltinType::Char16:
4046 case clang::BuiltinType::Char32:
4047 case clang::BuiltinType::UShort:
4048 case clang::BuiltinType::UInt:
4049 case clang::BuiltinType::ULong:
4050 case clang::BuiltinType::ULongLong:
4051 case clang::BuiltinType::UInt128:
4052 case clang::BuiltinType::Char_S:
4053 case clang::BuiltinType::SChar:
4054 case clang::BuiltinType::WChar_S:
4055 case clang::BuiltinType::Short:
4056 case clang::BuiltinType::Int:
4057 case clang::BuiltinType::Long:
4058 case clang::BuiltinType::LongLong:
4059 case clang::BuiltinType::Int128:
4060 case clang::BuiltinType::Float:
4061 case clang::BuiltinType::Double:
4062 case clang::BuiltinType::LongDouble:
4063 break;
4064
4065 case clang::BuiltinType::NullPtr:
4066 return eLanguageTypeC_plus_plus;
4067
4068 case clang::BuiltinType::ObjCId:
4069 case clang::BuiltinType::ObjCClass:
4070 case clang::BuiltinType::ObjCSel:
4071 return eLanguageTypeObjC;
4072
4073 case clang::BuiltinType::Dependent:
4074 case clang::BuiltinType::Overload:
4075 case clang::BuiltinType::BoundMember:
4076 case clang::BuiltinType::UnknownAny:
4077 break;
4078 }
4079 break;
4080 case clang::Type::Typedef:
4081 return GetType(llvm::cast<clang::TypedefType>(qual_type)
4082 ->getDecl()
4083 ->getUnderlyingType())
4084 .GetMinimumLanguage();
4085 }
4086 }
4087 return lldb::eLanguageTypeC;
4088}
4089
4090lldb::TypeClass
4091TypeSystemClang::GetTypeClass(lldb::opaque_compiler_type_t type) {
4092 if (!type)
4093 return lldb::eTypeClassInvalid;
4094
4095 clang::QualType qual_type =
4096 RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef});
4097
4098 switch (qual_type->getTypeClass()) {
4099 case clang::Type::Atomic:
4100 case clang::Type::Auto:
4101 case clang::Type::Decltype:
4102 case clang::Type::Elaborated:
4103 case clang::Type::Paren:
4104 case clang::Type::TypeOf:
4105 case clang::Type::TypeOfExpr:
4106 case clang::Type::Using:
4107 llvm_unreachable("Handled in RemoveWrappingTypes!")::llvm::llvm_unreachable_internal("Handled in RemoveWrappingTypes!"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
4107)
;
4108 case clang::Type::UnaryTransform:
4109 break;
4110 case clang::Type::FunctionNoProto:
4111 return lldb::eTypeClassFunction;
4112 case clang::Type::FunctionProto:
4113 return lldb::eTypeClassFunction;
4114 case clang::Type::IncompleteArray:
4115 return lldb::eTypeClassArray;
4116 case clang::Type::VariableArray:
4117 return lldb::eTypeClassArray;
4118 case clang::Type::ConstantArray:
4119 return lldb::eTypeClassArray;
4120 case clang::Type::DependentSizedArray:
4121 return lldb::eTypeClassArray;
4122 case clang::Type::DependentSizedExtVector:
4123 return lldb::eTypeClassVector;
4124 case clang::Type::DependentVector:
4125 return lldb::eTypeClassVector;
4126 case clang::Type::ExtVector:
4127 return lldb::eTypeClassVector;
4128 case clang::Type::Vector:
4129 return lldb::eTypeClassVector;
4130 case clang::Type::Builtin:
4131 // Ext-Int is just an integer type.
4132 case clang::Type::BitInt:
4133 case clang::Type::DependentBitInt:
4134 return lldb::eTypeClassBuiltin;
4135 case clang::Type::ObjCObjectPointer:
4136 return lldb::eTypeClassObjCObjectPointer;
4137 case clang::Type::BlockPointer:
4138 return lldb::eTypeClassBlockPointer;
4139 case clang::Type::Pointer:
4140 return lldb::eTypeClassPointer;
4141 case clang::Type::LValueReference:
4142 return lldb::eTypeClassReference;
4143 case clang::Type::RValueReference:
4144 return lldb::eTypeClassReference;
4145 case clang::Type::MemberPointer:
4146 return lldb::eTypeClassMemberPointer;
4147 case clang::Type::Complex:
4148 if (qual_type->isComplexType())
4149 return lldb::eTypeClassComplexFloat;
4150 else
4151 return lldb::eTypeClassComplexInteger;
4152 case clang::Type::ObjCObject:
4153 return lldb::eTypeClassObjCObject;
4154 case clang::Type::ObjCInterface:
4155 return lldb::eTypeClassObjCInterface;
4156 case clang::Type::Record: {
4157 const clang::RecordType *record_type =
4158 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
4159 const clang::RecordDecl *record_decl = record_type->getDecl();
4160 if (record_decl->isUnion())
4161 return lldb::eTypeClassUnion;
4162 else if (record_decl->isStruct())
4163 return lldb::eTypeClassStruct;
4164 else
4165 return lldb::eTypeClassClass;
4166 } break;
4167 case clang::Type::Enum:
4168 return lldb::eTypeClassEnumeration;
4169 case clang::Type::Typedef:
4170 return lldb::eTypeClassTypedef;
4171 case clang::Type::UnresolvedUsing:
4172 break;
4173
4174 case clang::Type::Attributed:
4175 break;
4176 case clang::Type::TemplateTypeParm:
4177 break;
4178 case clang::Type::SubstTemplateTypeParm:
4179 break;
4180 case clang::Type::SubstTemplateTypeParmPack:
4181 break;
4182 case clang::Type::InjectedClassName:
4183 break;
4184 case clang::Type::DependentName:
4185 break;
4186 case clang::Type::DependentTemplateSpecialization:
4187 break;
4188 case clang::Type::PackExpansion:
4189 break;
4190
4191 case clang::Type::TemplateSpecialization:
4192 break;
4193 case clang::Type::DeducedTemplateSpecialization:
4194 break;
4195 case clang::Type::Pipe:
4196 break;
4197
4198 // pointer type decayed from an array or function type.
4199 case clang::Type::Decayed:
4200 break;
4201 case clang::Type::Adjusted:
4202 break;
4203 case clang::Type::ObjCTypeParam:
4204 break;
4205
4206 case clang::Type::DependentAddressSpace:
4207 break;
4208 case clang::Type::MacroQualified:
4209 break;
4210
4211 // Matrix types that we're not sure how to display at the moment.
4212 case clang::Type::ConstantMatrix:
4213 case clang::Type::DependentSizedMatrix:
4214 break;
4215 }
4216 // We don't know hot to display this type...
4217 return lldb::eTypeClassOther;
4218}
4219
4220unsigned TypeSystemClang::GetTypeQualifiers(lldb::opaque_compiler_type_t type) {
4221 if (type)
4222 return GetQualType(type).getQualifiers().getCVRQualifiers();
4223 return 0;
4224}
4225
4226// Creating related types
4227
4228CompilerType
4229TypeSystemClang::GetArrayElementType(lldb::opaque_compiler_type_t type,
4230 ExecutionContextScope *exe_scope) {
4231 if (type) {
4232 clang::QualType qual_type(GetQualType(type));
4233
4234 const clang::Type *array_eletype =
4235 qual_type.getTypePtr()->getArrayElementTypeNoTypeQual();
4236
4237 if (!array_eletype)
4238 return CompilerType();
4239
4240 return GetType(clang::QualType(array_eletype, 0));
4241 }
4242 return CompilerType();
4243}
4244
4245CompilerType TypeSystemClang::GetArrayType(lldb::opaque_compiler_type_t type,
4246 uint64_t size) {
4247 if (type) {
4248 clang::QualType qual_type(GetCanonicalQualType(type));
4249 clang::ASTContext &ast_ctx = getASTContext();
4250 if (size != 0)
4251 return GetType(ast_ctx.getConstantArrayType(
4252 qual_type, llvm::APInt(64, size), nullptr,
4253 clang::ArrayType::ArraySizeModifier::Normal, 0));
4254 else
4255 return GetType(ast_ctx.getIncompleteArrayType(
4256 qual_type, clang::ArrayType::ArraySizeModifier::Normal, 0));
4257 }
4258
4259 return CompilerType();
4260}
4261
4262CompilerType
4263TypeSystemClang::GetCanonicalType(lldb::opaque_compiler_type_t type) {
4264 if (type)
4265 return GetType(GetCanonicalQualType(type));
4266 return CompilerType();
4267}
4268
4269static clang::QualType GetFullyUnqualifiedType_Impl(clang::ASTContext *ast,
4270 clang::QualType qual_type) {
4271 if (qual_type->isPointerType())
4272 qual_type = ast->getPointerType(
4273 GetFullyUnqualifiedType_Impl(ast, qual_type->getPointeeType()));
4274 else if (const ConstantArrayType *arr =
4275 ast->getAsConstantArrayType(qual_type)) {
4276 qual_type = ast->getConstantArrayType(
4277 GetFullyUnqualifiedType_Impl(ast, arr->getElementType()),
4278 arr->getSize(), arr->getSizeExpr(), arr->getSizeModifier(),
4279 arr->getIndexTypeQualifiers().getAsOpaqueValue());
4280 } else
4281 qual_type = qual_type.getUnqualifiedType();
4282 qual_type.removeLocalConst();
4283 qual_type.removeLocalRestrict();
4284 qual_type.removeLocalVolatile();
4285 return qual_type;
4286}
4287
4288CompilerType
4289TypeSystemClang::GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) {
4290 if (type)
4291 return GetType(
4292 GetFullyUnqualifiedType_Impl(&getASTContext(), GetQualType(type)));
4293 return CompilerType();
4294}
4295
4296CompilerType
4297TypeSystemClang::GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) {
4298 if (type)
4299 return GetEnumerationIntegerType(GetType(GetCanonicalQualType(type)));
4300 return CompilerType();
4301}
4302
4303int TypeSystemClang::GetFunctionArgumentCount(
4304 lldb::opaque_compiler_type_t type) {
4305 if (type) {
4306 const clang::FunctionProtoType *func =
4307 llvm::dyn_cast<clang::FunctionProtoType>(GetCanonicalQualType(type));
4308 if (func)
4309 return func->getNumParams();
4310 }
4311 return -1;
4312}
4313
4314CompilerType TypeSystemClang::GetFunctionArgumentTypeAtIndex(
4315 lldb::opaque_compiler_type_t type, size_t idx) {
4316 if (type) {
4317 const clang::FunctionProtoType *func =
4318 llvm::dyn_cast<clang::FunctionProtoType>(GetQualType(type));
4319 if (func) {
4320 const uint32_t num_args = func->getNumParams();
4321 if (idx < num_args)
4322 return GetType(func->getParamType(idx));
4323 }
4324 }
4325 return CompilerType();
4326}
4327
4328CompilerType
4329TypeSystemClang::GetFunctionReturnType(lldb::opaque_compiler_type_t type) {
4330 if (type) {
4331 clang::QualType qual_type(GetQualType(type));
4332 const clang::FunctionProtoType *func =
4333 llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr());
4334 if (func)
4335 return GetType(func->getReturnType());
4336 }
4337 return CompilerType();
4338}
4339
4340size_t
4341TypeSystemClang::GetNumMemberFunctions(lldb::opaque_compiler_type_t type) {
4342 size_t num_functions = 0;
4343 if (type) {
4344 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
4345 switch (qual_type->getTypeClass()) {
4346 case clang::Type::Record:
4347 if (GetCompleteQualType(&getASTContext(), qual_type)) {
4348 const clang::RecordType *record_type =
4349 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
4350 const clang::RecordDecl *record_decl = record_type->getDecl();
4351 assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail
("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 4351, __extension__ __PRETTY_FUNCTION__))
;
4352 const clang::CXXRecordDecl *cxx_record_decl =
4353 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
4354 if (cxx_record_decl)
4355 num_functions = std::distance(cxx_record_decl->method_begin(),
4356 cxx_record_decl->method_end());
4357 }
4358 break;
4359
4360 case clang::Type::ObjCObjectPointer: {
4361 const clang::ObjCObjectPointerType *objc_class_type =
4362 qual_type->getAs<clang::ObjCObjectPointerType>();
4363 const clang::ObjCInterfaceType *objc_interface_type =
4364 objc_class_type->getInterfaceType();
4365 if (objc_interface_type &&
4366 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
4367 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
4368 clang::ObjCInterfaceDecl *class_interface_decl =
4369 objc_interface_type->getDecl();
4370 if (class_interface_decl) {
4371 num_functions = std::distance(class_interface_decl->meth_begin(),
4372 class_interface_decl->meth_end());
4373 }
4374 }
4375 break;
4376 }
4377
4378 case clang::Type::ObjCObject:
4379 case clang::Type::ObjCInterface:
4380 if (GetCompleteType(type)) {
4381 const clang::ObjCObjectType *objc_class_type =
4382 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
4383 if (objc_class_type) {
4384 clang::ObjCInterfaceDecl *class_interface_decl =
4385 objc_class_type->getInterface();
4386 if (class_interface_decl)
4387 num_functions = std::distance(class_interface_decl->meth_begin(),
4388 class_interface_decl->meth_end());
4389 }
4390 }
4391 break;
4392
4393 default:
4394 break;
4395 }
4396 }
4397 return num_functions;
4398}
4399
4400TypeMemberFunctionImpl
4401TypeSystemClang::GetMemberFunctionAtIndex(lldb::opaque_compiler_type_t type,
4402 size_t idx) {
4403 std::string name;
4404 MemberFunctionKind kind(MemberFunctionKind::eMemberFunctionKindUnknown);
4405 CompilerType clang_type;
4406 CompilerDecl clang_decl;
4407 if (type) {
4408 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
4409 switch (qual_type->getTypeClass()) {
4410 case clang::Type::Record:
4411 if (GetCompleteQualType(&getASTContext(), qual_type)) {
4412 const clang::RecordType *record_type =
4413 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
4414 const clang::RecordDecl *record_decl = record_type->getDecl();
4415 assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail
("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 4415, __extension__ __PRETTY_FUNCTION__))
;
4416 const clang::CXXRecordDecl *cxx_record_decl =
4417 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
4418 if (cxx_record_decl) {
4419 auto method_iter = cxx_record_decl->method_begin();
4420 auto method_end = cxx_record_decl->method_end();
4421 if (idx <
4422 static_cast<size_t>(std::distance(method_iter, method_end))) {
4423 std::advance(method_iter, idx);
4424 clang::CXXMethodDecl *cxx_method_decl =
4425 method_iter->getCanonicalDecl();
4426 if (cxx_method_decl) {
4427 name = cxx_method_decl->getDeclName().getAsString();
4428 if (cxx_method_decl->isStatic())
4429 kind = lldb::eMemberFunctionKindStaticMethod;
4430 else if (llvm::isa<clang::CXXConstructorDecl>(cxx_method_decl))
4431 kind = lldb::eMemberFunctionKindConstructor;
4432 else if (llvm::isa<clang::CXXDestructorDecl>(cxx_method_decl))
4433 kind = lldb::eMemberFunctionKindDestructor;
4434 else
4435 kind = lldb::eMemberFunctionKindInstanceMethod;
4436 clang_type = GetType(cxx_method_decl->getType());
4437 clang_decl = GetCompilerDecl(cxx_method_decl);
4438 }
4439 }
4440 }
4441 }
4442 break;
4443
4444 case clang::Type::ObjCObjectPointer: {
4445 const clang::ObjCObjectPointerType *objc_class_type =
4446 qual_type->getAs<clang::ObjCObjectPointerType>();
4447 const clang::ObjCInterfaceType *objc_interface_type =
4448 objc_class_type->getInterfaceType();
4449 if (objc_interface_type &&
4450 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
4451 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
4452 clang::ObjCInterfaceDecl *class_interface_decl =
4453 objc_interface_type->getDecl();
4454 if (class_interface_decl) {
4455 auto method_iter = class_interface_decl->meth_begin();
4456 auto method_end = class_interface_decl->meth_end();
4457 if (idx <
4458 static_cast<size_t>(std::distance(method_iter, method_end))) {
4459 std::advance(method_iter, idx);
4460 clang::ObjCMethodDecl *objc_method_decl =
4461 method_iter->getCanonicalDecl();
4462 if (objc_method_decl) {
4463 clang_decl = GetCompilerDecl(objc_method_decl);
4464 name = objc_method_decl->getSelector().getAsString();
4465 if (objc_method_decl->isClassMethod())
4466 kind = lldb::eMemberFunctionKindStaticMethod;
4467 else
4468 kind = lldb::eMemberFunctionKindInstanceMethod;
4469 }
4470 }
4471 }
4472 }
4473 break;
4474 }
4475
4476 case clang::Type::ObjCObject:
4477 case clang::Type::ObjCInterface:
4478 if (GetCompleteType(type)) {
4479 const clang::ObjCObjectType *objc_class_type =
4480 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
4481 if (objc_class_type) {
4482 clang::ObjCInterfaceDecl *class_interface_decl =
4483 objc_class_type->getInterface();
4484 if (class_interface_decl) {
4485 auto method_iter = class_interface_decl->meth_begin();
4486 auto method_end = class_interface_decl->meth_end();
4487 if (idx <
4488 static_cast<size_t>(std::distance(method_iter, method_end))) {
4489 std::advance(method_iter, idx);
4490 clang::ObjCMethodDecl *objc_method_decl =
4491 method_iter->getCanonicalDecl();
4492 if (objc_method_decl) {
4493 clang_decl = GetCompilerDecl(objc_method_decl);
4494 name = objc_method_decl->getSelector().getAsString();
4495 if (objc_method_decl->isClassMethod())
4496 kind = lldb::eMemberFunctionKindStaticMethod;
4497 else
4498 kind = lldb::eMemberFunctionKindInstanceMethod;
4499 }
4500 }
4501 }
4502 }
4503 }
4504 break;
4505
4506 default:
4507 break;
4508 }
4509 }
4510
4511 if (kind == eMemberFunctionKindUnknown)
4512 return TypeMemberFunctionImpl();
4513 else
4514 return TypeMemberFunctionImpl(clang_type, clang_decl, name, kind);
4515}
4516
4517CompilerType
4518TypeSystemClang::GetNonReferenceType(lldb::opaque_compiler_type_t type) {
4519 if (type)
4520 return GetType(GetQualType(type).getNonReferenceType());
4521 return CompilerType();
4522}
4523
4524CompilerType
4525TypeSystemClang::GetPointeeType(lldb::opaque_compiler_type_t type) {
4526 if (type) {
4527 clang::QualType qual_type(GetQualType(type));
4528 return GetType(qual_type.getTypePtr()->getPointeeType());
4529 }
4530 return CompilerType();
4531}
4532
4533CompilerType
4534TypeSystemClang::GetPointerType(lldb::opaque_compiler_type_t type) {
4535 if (type) {
4536 clang::QualType qual_type(GetQualType(type));
4537
4538 switch (qual_type.getDesugaredType(getASTContext())->getTypeClass()) {
4539 case clang::Type::ObjCObject:
4540 case clang::Type::ObjCInterface:
4541 return GetType(getASTContext().getObjCObjectPointerType(qual_type));
4542
4543 default:
4544 return GetType(getASTContext().getPointerType(qual_type));
4545 }
4546 }
4547 return CompilerType();
4548}
4549
4550CompilerType
4551TypeSystemClang::GetLValueReferenceType(lldb::opaque_compiler_type_t type) {
4552 if (type)
4553 return GetType(getASTContext().getLValueReferenceType(GetQualType(type)));
4554 else
4555 return CompilerType();
4556}
4557
4558CompilerType
4559TypeSystemClang::GetRValueReferenceType(lldb::opaque_compiler_type_t type) {
4560 if (type)
4561 return GetType(getASTContext().getRValueReferenceType(GetQualType(type)));
4562 else
4563 return CompilerType();
4564}
4565
4566CompilerType TypeSystemClang::GetAtomicType(lldb::opaque_compiler_type_t type) {
4567 if (!type)
4568 return CompilerType();
4569 return GetType(getASTContext().getAtomicType(GetQualType(type)));
4570}
4571
4572CompilerType
4573TypeSystemClang::AddConstModifier(lldb::opaque_compiler_type_t type) {
4574 if (type) {
4575 clang::QualType result(GetQualType(type));
4576 result.addConst();
4577 return GetType(result);
4578 }
4579 return CompilerType();
4580}
4581
4582CompilerType
4583TypeSystemClang::AddVolatileModifier(lldb::opaque_compiler_type_t type) {
4584 if (type) {
4585 clang::QualType result(GetQualType(type));
4586 result.addVolatile();
4587 return GetType(result);
4588 }
4589 return CompilerType();
4590}
4591
4592CompilerType
4593TypeSystemClang::AddRestrictModifier(lldb::opaque_compiler_type_t type) {
4594 if (type) {
4595 clang::QualType result(GetQualType(type));
4596 result.addRestrict();
4597 return GetType(result);
4598 }
4599 return CompilerType();
4600}
4601
4602CompilerType TypeSystemClang::CreateTypedef(
4603 lldb::opaque_compiler_type_t type, const char *typedef_name,
4604 const CompilerDeclContext &compiler_decl_ctx, uint32_t payload) {
4605 if (type && typedef_name && typedef_name[0]) {
4606 clang::ASTContext &clang_ast = getASTContext();
4607 clang::QualType qual_type(GetQualType(type));
4608
4609 clang::DeclContext *decl_ctx =
4610 TypeSystemClang::DeclContextGetAsDeclContext(compiler_decl_ctx);
4611 if (!decl_ctx)
4612 decl_ctx = getASTContext().getTranslationUnitDecl();
4613
4614 clang::TypedefDecl *decl =
4615 clang::TypedefDecl::CreateDeserialized(clang_ast, 0);
4616 decl->setDeclContext(decl_ctx);
4617 decl->setDeclName(&clang_ast.Idents.get(typedef_name));
4618 decl->setTypeSourceInfo(clang_ast.getTrivialTypeSourceInfo(qual_type));
4619 decl_ctx->addDecl(decl);
4620 SetOwningModule(decl, TypePayloadClang(payload).GetOwningModule());
4621
4622 clang::TagDecl *tdecl = nullptr;
4623 if (!qual_type.isNull()) {
4624 if (const clang::RecordType *rt = qual_type->getAs<clang::RecordType>())
4625 tdecl = rt->getDecl();
4626 if (const clang::EnumType *et = qual_type->getAs<clang::EnumType>())
4627 tdecl = et->getDecl();
4628 }
4629
4630 // Check whether this declaration is an anonymous struct, union, or enum,
4631 // hidden behind a typedef. If so, we try to check whether we have a
4632 // typedef tag to attach to the original record declaration
4633 if (tdecl && !tdecl->getIdentifier() && !tdecl->getTypedefNameForAnonDecl())
4634 tdecl->setTypedefNameForAnonDecl(decl);
4635
4636 decl->setAccess(clang::AS_public); // TODO respect proper access specifier
4637
4638 // Get a uniqued clang::QualType for the typedef decl type
4639 return GetType(clang_ast.getTypedefType(decl));
4640 }
4641 return CompilerType();
4642}
4643
4644CompilerType
4645TypeSystemClang::GetTypedefedType(lldb::opaque_compiler_type_t type) {
4646 if (type) {
4647 const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>(
4648 RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}));
4649 if (typedef_type)
4650 return GetType(typedef_type->getDecl()->getUnderlyingType());
4651 }
4652 return CompilerType();
4653}
4654
4655// Create related types using the current type's AST
4656
4657CompilerType TypeSystemClang::GetBasicTypeFromAST(lldb::BasicType basic_type) {
4658 return TypeSystemClang::GetBasicType(basic_type);
4659}
4660// Exploring the type
4661
4662const llvm::fltSemantics &
4663TypeSystemClang::GetFloatTypeSemantics(size_t byte_size) {
4664 clang::ASTContext &ast = getASTContext();
4665 const size_t bit_size = byte_size * 8;
4666 if (bit_size == ast.getTypeSize(ast.FloatTy))
4667 return ast.getFloatTypeSemantics(ast.FloatTy);
4668 else if (bit_size == ast.getTypeSize(ast.DoubleTy))
4669 return ast.getFloatTypeSemantics(ast.DoubleTy);
4670 else if (bit_size == ast.getTypeSize(ast.LongDoubleTy))
4671 return ast.getFloatTypeSemantics(ast.LongDoubleTy);
4672 else if (bit_size == ast.getTypeSize(ast.HalfTy))
4673 return ast.getFloatTypeSemantics(ast.HalfTy);
4674 return llvm::APFloatBase::Bogus();
4675}
4676
4677Optional<uint64_t>
4678TypeSystemClang::GetBitSize(lldb::opaque_compiler_type_t type,
4679 ExecutionContextScope *exe_scope) {
4680 if (GetCompleteType(type)) {
4681 clang::QualType qual_type(GetCanonicalQualType(type));
4682 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
4683 switch (type_class) {
4684 case clang::Type::Record:
4685 if (GetCompleteType(type))
4686 return getASTContext().getTypeSize(qual_type);
4687 else
4688 return None;
4689 break;
4690
4691 case clang::Type::ObjCInterface:
4692 case clang::Type::ObjCObject: {
4693 ExecutionContext exe_ctx(exe_scope);
4694 Process *process = exe_ctx.GetProcessPtr();
4695 if (process) {
4696 ObjCLanguageRuntime *objc_runtime = ObjCLanguageRuntime::Get(*process);
4697 if (objc_runtime) {
4698 uint64_t bit_size = 0;
4699 if (objc_runtime->GetTypeBitSize(GetType(qual_type), bit_size))
4700 return bit_size;
4701 }
4702 } else {
4703 static bool g_printed = false;
4704 if (!g_printed) {
4705 StreamString s;
4706 DumpTypeDescription(type, &s);
4707
4708 llvm::outs() << "warning: trying to determine the size of type ";
4709 llvm::outs() << s.GetString() << "\n";
4710 llvm::outs() << "without a valid ExecutionContext. this is not "
4711 "reliable. please file a bug against LLDB.\n";
4712 llvm::outs() << "backtrace:\n";
4713 llvm::sys::PrintStackTrace(llvm::outs());
4714 llvm::outs() << "\n";
4715 g_printed = true;
4716 }
4717 }
4718 }
4719 LLVM_FALLTHROUGH[[gnu::fallthrough]];
4720 default:
4721 const uint32_t bit_size = getASTContext().getTypeSize(qual_type);
4722 if (bit_size == 0) {
4723 if (qual_type->isIncompleteArrayType())
4724 return getASTContext().getTypeSize(
4725 qual_type->getArrayElementTypeNoTypeQual()
4726 ->getCanonicalTypeUnqualified());
4727 }
4728 if (qual_type->isObjCObjectOrInterfaceType())
4729 return bit_size +
4730 getASTContext().getTypeSize(getASTContext().ObjCBuiltinClassTy);
4731 // Function types actually have a size of 0, that's not an error.
4732 if (qual_type->isFunctionProtoType())
4733 return bit_size;
4734 if (bit_size)
4735 return bit_size;
4736 }
4737 }
4738 return None;
4739}
4740
4741llvm::Optional<size_t>
4742TypeSystemClang::GetTypeBitAlign(lldb::opaque_compiler_type_t type,
4743 ExecutionContextScope *exe_scope) {
4744 if (GetCompleteType(type))
4745 return getASTContext().getTypeAlign(GetQualType(type));
4746 return {};
4747}
4748
4749lldb::Encoding TypeSystemClang::GetEncoding(lldb::opaque_compiler_type_t type,
4750 uint64_t &count) {
4751 if (!type)
4752 return lldb::eEncodingInvalid;
4753
4754 count = 1;
4755 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
4756
4757 switch (qual_type->getTypeClass()) {
4758 case clang::Type::Atomic:
4759 case clang::Type::Auto:
4760 case clang::Type::Decltype:
4761 case clang::Type::Elaborated:
4762 case clang::Type::Paren:
4763 case clang::Type::Typedef:
4764 case clang::Type::TypeOf:
4765 case clang::Type::TypeOfExpr:
4766 case clang::Type::Using:
4767 llvm_unreachable("Handled in RemoveWrappingTypes!")::llvm::llvm_unreachable_internal("Handled in RemoveWrappingTypes!"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
4767)
;
4768
4769 case clang::Type::UnaryTransform:
4770 break;
4771
4772 case clang::Type::FunctionNoProto:
4773 case clang::Type::FunctionProto:
4774 break;
4775
4776 case clang::Type::IncompleteArray:
4777 case clang::Type::VariableArray:
4778 break;
4779
4780 case clang::Type::ConstantArray:
4781 break;
4782
4783 case clang::Type::DependentVector:
4784 case clang::Type::ExtVector:
4785 case clang::Type::Vector:
4786 // TODO: Set this to more than one???
4787 break;
4788
4789 case clang::Type::BitInt:
4790 case clang::Type::DependentBitInt:
4791 return qual_type->isUnsignedIntegerType() ? lldb::eEncodingUint
4792 : lldb::eEncodingSint;
4793
4794 case clang::Type::Builtin:
4795 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
4796 case clang::BuiltinType::Void:
4797 break;
4798
4799 case clang::BuiltinType::Char_S:
4800 case clang::BuiltinType::SChar:
4801 case clang::BuiltinType::WChar_S:
4802 case clang::BuiltinType::Short:
4803 case clang::BuiltinType::Int:
4804 case clang::BuiltinType::Long:
4805 case clang::BuiltinType::LongLong:
4806 case clang::BuiltinType::Int128:
4807 return lldb::eEncodingSint;
4808
4809 case clang::BuiltinType::Bool:
4810 case clang::BuiltinType::Char_U:
4811 case clang::BuiltinType::UChar:
4812 case clang::BuiltinType::WChar_U:
4813 case clang::BuiltinType::Char8:
4814 case clang::BuiltinType::Char16:
4815 case clang::BuiltinType::Char32:
4816 case clang::BuiltinType::UShort:
4817 case clang::BuiltinType::UInt:
4818 case clang::BuiltinType::ULong:
4819 case clang::BuiltinType::ULongLong:
4820 case clang::BuiltinType::UInt128:
4821 return lldb::eEncodingUint;
4822
4823 // Fixed point types. Note that they are currently ignored.
4824 case clang::BuiltinType::ShortAccum:
4825 case clang::BuiltinType::Accum:
4826 case clang::BuiltinType::LongAccum:
4827 case clang::BuiltinType::UShortAccum:
4828 case clang::BuiltinType::UAccum:
4829 case clang::BuiltinType::ULongAccum:
4830 case clang::BuiltinType::ShortFract:
4831 case clang::BuiltinType::Fract:
4832 case clang::BuiltinType::LongFract:
4833 case clang::BuiltinType::UShortFract:
4834 case clang::BuiltinType::UFract:
4835 case clang::BuiltinType::ULongFract:
4836 case clang::BuiltinType::SatShortAccum:
4837 case clang::BuiltinType::SatAccum:
4838 case clang::BuiltinType::SatLongAccum:
4839 case clang::BuiltinType::SatUShortAccum:
4840 case clang::BuiltinType::SatUAccum:
4841 case clang::BuiltinType::SatULongAccum:
4842 case clang::BuiltinType::SatShortFract:
4843 case clang::BuiltinType::SatFract:
4844 case clang::BuiltinType::SatLongFract:
4845 case clang::BuiltinType::SatUShortFract:
4846 case clang::BuiltinType::SatUFract:
4847 case clang::BuiltinType::SatULongFract:
4848 break;
4849
4850 case clang::BuiltinType::Half:
4851 case clang::BuiltinType::Float:
4852 case clang::BuiltinType::Float16:
4853 case clang::BuiltinType::Float128:
4854 case clang::BuiltinType::Double:
4855 case clang::BuiltinType::LongDouble:
4856 case clang::BuiltinType::BFloat16:
4857 case clang::BuiltinType::Ibm128:
4858 return lldb::eEncodingIEEE754;
4859
4860 case clang::BuiltinType::ObjCClass:
4861 case clang::BuiltinType::ObjCId:
4862 case clang::BuiltinType::ObjCSel:
4863 return lldb::eEncodingUint;
4864
4865 case clang::BuiltinType::NullPtr:
4866 return lldb::eEncodingUint;
4867
4868 case clang::BuiltinType::Kind::ARCUnbridgedCast:
4869 case clang::BuiltinType::Kind::BoundMember:
4870 case clang::BuiltinType::Kind::BuiltinFn:
4871 case clang::BuiltinType::Kind::Dependent:
4872 case clang::BuiltinType::Kind::OCLClkEvent:
4873 case clang::BuiltinType::Kind::OCLEvent:
4874 case clang::BuiltinType::Kind::OCLImage1dRO:
4875 case clang::BuiltinType::Kind::OCLImage1dWO:
4876 case clang::BuiltinType::Kind::OCLImage1dRW:
4877 case clang::BuiltinType::Kind::OCLImage1dArrayRO:
4878 case clang::BuiltinType::Kind::OCLImage1dArrayWO:
4879 case clang::BuiltinType::Kind::OCLImage1dArrayRW:
4880 case clang::BuiltinType::Kind::OCLImage1dBufferRO:
4881 case clang::BuiltinType::Kind::OCLImage1dBufferWO:
4882 case clang::BuiltinType::Kind::OCLImage1dBufferRW:
4883 case clang::BuiltinType::Kind::OCLImage2dRO:
4884 case clang::BuiltinType::Kind::OCLImage2dWO:
4885 case clang::BuiltinType::Kind::OCLImage2dRW:
4886 case clang::BuiltinType::Kind::OCLImage2dArrayRO:
4887 case clang::BuiltinType::Kind::OCLImage2dArrayWO:
4888 case clang::BuiltinType::Kind::OCLImage2dArrayRW:
4889 case clang::BuiltinType::Kind::OCLImage2dArrayDepthRO:
4890 case clang::BuiltinType::Kind::OCLImage2dArrayDepthWO:
4891 case clang::BuiltinType::Kind::OCLImage2dArrayDepthRW:
4892 case clang::BuiltinType::Kind::OCLImage2dArrayMSAARO:
4893 case clang::BuiltinType::Kind::OCLImage2dArrayMSAAWO:
4894 case clang::BuiltinType::Kind::OCLImage2dArrayMSAARW:
4895 case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRO:
4896 case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthWO:
4897 case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRW:
4898 case clang::BuiltinType::Kind::OCLImage2dDepthRO:
4899 case clang::BuiltinType::Kind::OCLImage2dDepthWO:
4900 case clang::BuiltinType::Kind::OCLImage2dDepthRW:
4901 case clang::BuiltinType::Kind::OCLImage2dMSAARO:
4902 case clang::BuiltinType::Kind::OCLImage2dMSAAWO:
4903 case clang::BuiltinType::Kind::OCLImage2dMSAARW:
4904 case clang::BuiltinType::Kind::OCLImage2dMSAADepthRO:
4905 case clang::BuiltinType::Kind::OCLImage2dMSAADepthWO:
4906 case clang::BuiltinType::Kind::OCLImage2dMSAADepthRW:
4907 case clang::BuiltinType::Kind::OCLImage3dRO:
4908 case clang::BuiltinType::Kind::OCLImage3dWO:
4909 case clang::BuiltinType::Kind::OCLImage3dRW:
4910 case clang::BuiltinType::Kind::OCLQueue:
4911 case clang::BuiltinType::Kind::OCLReserveID:
4912 case clang::BuiltinType::Kind::OCLSampler:
4913 case clang::BuiltinType::Kind::OMPArraySection:
4914 case clang::BuiltinType::Kind::OMPArrayShaping:
4915 case clang::BuiltinType::Kind::OMPIterator:
4916 case clang::BuiltinType::Kind::Overload:
4917 case clang::BuiltinType::Kind::PseudoObject:
4918 case clang::BuiltinType::Kind::UnknownAny:
4919 break;
4920
4921 case clang::BuiltinType::OCLIntelSubgroupAVCMcePayload:
4922 case clang::BuiltinType::OCLIntelSubgroupAVCImePayload:
4923 case clang::BuiltinType::OCLIntelSubgroupAVCRefPayload:
4924 case clang::BuiltinType::OCLIntelSubgroupAVCSicPayload:
4925 case clang::BuiltinType::OCLIntelSubgroupAVCMceResult:
4926 case clang::BuiltinType::OCLIntelSubgroupAVCImeResult:
4927 case clang::BuiltinType::OCLIntelSubgroupAVCRefResult:
4928 case clang::BuiltinType::OCLIntelSubgroupAVCSicResult:
4929 case clang::BuiltinType::OCLIntelSubgroupAVCImeResultSingleRefStreamout:
4930 case clang::BuiltinType::OCLIntelSubgroupAVCImeResultDualRefStreamout:
4931 case clang::BuiltinType::OCLIntelSubgroupAVCImeSingleRefStreamin:
4932 case clang::BuiltinType::OCLIntelSubgroupAVCImeDualRefStreamin:
4933 break;
4934
4935 // PowerPC -- Matrix Multiply Assist
4936 case clang::BuiltinType::VectorPair:
4937 case clang::BuiltinType::VectorQuad:
4938 break;
4939
4940 // ARM -- Scalable Vector Extension
4941 case clang::BuiltinType::SveBool:
4942 case clang::BuiltinType::SveInt8:
4943 case clang::BuiltinType::SveInt8x2:
4944 case clang::BuiltinType::SveInt8x3:
4945 case clang::BuiltinType::SveInt8x4:
4946 case clang::BuiltinType::SveInt16:
4947 case clang::BuiltinType::SveInt16x2:
4948 case clang::BuiltinType::SveInt16x3:
4949 case clang::BuiltinType::SveInt16x4:
4950 case clang::BuiltinType::SveInt32:
4951 case clang::BuiltinType::SveInt32x2:
4952 case clang::BuiltinType::SveInt32x3:
4953 case clang::BuiltinType::SveInt32x4:
4954 case clang::BuiltinType::SveInt64:
4955 case clang::BuiltinType::SveInt64x2:
4956 case clang::BuiltinType::SveInt64x3:
4957 case clang::BuiltinType::SveInt64x4:
4958 case clang::BuiltinType::SveUint8:
4959 case clang::BuiltinType::SveUint8x2:
4960 case clang::BuiltinType::SveUint8x3:
4961 case clang::BuiltinType::SveUint8x4:
4962 case clang::BuiltinType::SveUint16:
4963 case clang::BuiltinType::SveUint16x2:
4964 case clang::BuiltinType::SveUint16x3:
4965 case clang::BuiltinType::SveUint16x4:
4966 case clang::BuiltinType::SveUint32:
4967 case clang::BuiltinType::SveUint32x2:
4968 case clang::BuiltinType::SveUint32x3:
4969 case clang::BuiltinType::SveUint32x4:
4970 case clang::BuiltinType::SveUint64:
4971 case clang::BuiltinType::SveUint64x2:
4972 case clang::BuiltinType::SveUint64x3:
4973 case clang::BuiltinType::SveUint64x4:
4974 case clang::BuiltinType::SveFloat16:
4975 case clang::BuiltinType::SveBFloat16:
4976 case clang::BuiltinType::SveBFloat16x2:
4977 case clang::BuiltinType::SveBFloat16x3:
4978 case clang::BuiltinType::SveBFloat16x4:
4979 case clang::BuiltinType::SveFloat16x2:
4980 case clang::BuiltinType::SveFloat16x3:
4981 case clang::BuiltinType::SveFloat16x4:
4982 case clang::BuiltinType::SveFloat32:
4983 case clang::BuiltinType::SveFloat32x2:
4984 case clang::BuiltinType::SveFloat32x3:
4985 case clang::BuiltinType::SveFloat32x4:
4986 case clang::BuiltinType::SveFloat64:
4987 case clang::BuiltinType::SveFloat64x2:
4988 case clang::BuiltinType::SveFloat64x3:
4989 case clang::BuiltinType::SveFloat64x4:
4990 break;
4991
4992 // RISC-V V builtin types.
4993 case clang::BuiltinType::RvvInt8mf8:
4994 case clang::BuiltinType::RvvInt8mf4:
4995 case clang::BuiltinType::RvvInt8mf2:
4996 case clang::BuiltinType::RvvInt8m1:
4997 case clang::BuiltinType::RvvInt8m2:
4998 case clang::BuiltinType::RvvInt8m4:
4999 case clang::BuiltinType::RvvInt8m8:
5000 case clang::BuiltinType::RvvUint8mf8:
5001 case clang::BuiltinType::RvvUint8mf4:
5002 case clang::BuiltinType::RvvUint8mf2:
5003 case clang::BuiltinType::RvvUint8m1:
5004 case clang::BuiltinType::RvvUint8m2:
5005 case clang::BuiltinType::RvvUint8m4:
5006 case clang::BuiltinType::RvvUint8m8:
5007 case clang::BuiltinType::RvvInt16mf4:
5008 case clang::BuiltinType::RvvInt16mf2:
5009 case clang::BuiltinType::RvvInt16m1:
5010 case clang::BuiltinType::RvvInt16m2:
5011 case clang::BuiltinType::RvvInt16m4:
5012 case clang::BuiltinType::RvvInt16m8:
5013 case clang::BuiltinType::RvvUint16mf4:
5014 case clang::BuiltinType::RvvUint16mf2:
5015 case clang::BuiltinType::RvvUint16m1:
5016 case clang::BuiltinType::RvvUint16m2:
5017 case clang::BuiltinType::RvvUint16m4:
5018 case clang::BuiltinType::RvvUint16m8:
5019 case clang::BuiltinType::RvvInt32mf2:
5020 case clang::BuiltinType::RvvInt32m1:
5021 case clang::BuiltinType::RvvInt32m2:
5022 case clang::BuiltinType::RvvInt32m4:
5023 case clang::BuiltinType::RvvInt32m8:
5024 case clang::BuiltinType::RvvUint32mf2:
5025 case clang::BuiltinType::RvvUint32m1:
5026 case clang::BuiltinType::RvvUint32m2:
5027 case clang::BuiltinType::RvvUint32m4:
5028 case clang::BuiltinType::RvvUint32m8:
5029 case clang::BuiltinType::RvvInt64m1:
5030 case clang::BuiltinType::RvvInt64m2:
5031 case clang::BuiltinType::RvvInt64m4:
5032 case clang::BuiltinType::RvvInt64m8:
5033 case clang::BuiltinType::RvvUint64m1:
5034 case clang::BuiltinType::RvvUint64m2:
5035 case clang::BuiltinType::RvvUint64m4:
5036 case clang::BuiltinType::RvvUint64m8:
5037 case clang::BuiltinType::RvvFloat16mf4:
5038 case clang::BuiltinType::RvvFloat16mf2:
5039 case clang::BuiltinType::RvvFloat16m1:
5040 case clang::BuiltinType::RvvFloat16m2:
5041 case clang::BuiltinType::RvvFloat16m4:
5042 case clang::BuiltinType::RvvFloat16m8:
5043 case clang::BuiltinType::RvvFloat32mf2:
5044 case clang::BuiltinType::RvvFloat32m1:
5045 case clang::BuiltinType::RvvFloat32m2:
5046 case clang::BuiltinType::RvvFloat32m4:
5047 case clang::BuiltinType::RvvFloat32m8:
5048 case clang::BuiltinType::RvvFloat64m1:
5049 case clang::BuiltinType::RvvFloat64m2:
5050 case clang::BuiltinType::RvvFloat64m4:
5051 case clang::BuiltinType::RvvFloat64m8:
5052 case clang::BuiltinType::RvvBool1:
5053 case clang::BuiltinType::RvvBool2:
5054 case clang::BuiltinType::RvvBool4:
5055 case clang::BuiltinType::RvvBool8:
5056 case clang::BuiltinType::RvvBool16:
5057 case clang::BuiltinType::RvvBool32:
5058 case clang::BuiltinType::RvvBool64:
5059 break;
5060
5061 case clang::BuiltinType::IncompleteMatrixIdx:
5062 break;
5063 }
5064 break;
5065 // All pointer types are represented as unsigned integer encodings. We may
5066 // nee to add a eEncodingPointer if we ever need to know the difference
5067 case clang::Type::ObjCObjectPointer:
5068 case clang::Type::BlockPointer:
5069 case clang::Type::Pointer:
5070 case clang::Type::LValueReference:
5071 case clang::Type::RValueReference:
5072 case clang::Type::MemberPointer:
5073 return lldb::eEncodingUint;
5074 case clang::Type::Complex: {
5075 lldb::Encoding encoding = lldb::eEncodingIEEE754;
5076 if (qual_type->isComplexType())
5077 encoding = lldb::eEncodingIEEE754;
5078 else {
5079 const clang::ComplexType *complex_type =
5080 qual_type->getAsComplexIntegerType();
5081 if (complex_type)
5082 encoding = GetType(complex_type->getElementType()).GetEncoding(count);
5083 else
5084 encoding = lldb::eEncodingSint;
5085 }
5086 count = 2;
5087 return encoding;
5088 }
5089
5090 case clang::Type::ObjCInterface:
5091 break;
5092 case clang::Type::Record:
5093 break;
5094 case clang::Type::Enum:
5095 return lldb::eEncodingSint;
5096 case clang::Type::DependentSizedArray:
5097 case clang::Type::DependentSizedExtVector:
5098 case clang::Type::UnresolvedUsing:
5099 case clang::Type::Attributed:
5100 case clang::Type::TemplateTypeParm:
5101 case clang::Type::SubstTemplateTypeParm:
5102 case clang::Type::SubstTemplateTypeParmPack:
5103 case clang::Type::InjectedClassName:
5104 case clang::Type::DependentName:
5105 case clang::Type::DependentTemplateSpecialization:
5106 case clang::Type::PackExpansion:
5107 case clang::Type::ObjCObject:
5108
5109 case clang::Type::TemplateSpecialization:
5110 case clang::Type::DeducedTemplateSpecialization:
5111 case clang::Type::Adjusted:
5112 case clang::Type::Pipe:
5113 break;
5114
5115 // pointer type decayed from an array or function type.
5116 case clang::Type::Decayed:
5117 break;
5118 case clang::Type::ObjCTypeParam:
5119 break;
5120
5121 case clang::Type::DependentAddressSpace:
5122 break;
5123 case clang::Type::MacroQualified:
5124 break;
5125
5126 case clang::Type::ConstantMatrix:
5127 case clang::Type::DependentSizedMatrix:
5128 break;
5129 }
5130 count = 0;
5131 return lldb::eEncodingInvalid;
5132}
5133
5134lldb::Format TypeSystemClang::GetFormat(lldb::opaque_compiler_type_t type) {
5135 if (!type)
5136 return lldb::eFormatDefault;
5137
5138 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
5139
5140 switch (qual_type->getTypeClass()) {
5141 case clang::Type::Atomic:
5142 case clang::Type::Auto:
5143 case clang::Type::Decltype:
5144 case clang::Type::Elaborated:
5145 case clang::Type::Paren:
5146 case clang::Type::Typedef:
5147 case clang::Type::TypeOf:
5148 case clang::Type::TypeOfExpr:
5149 case clang::Type::Using:
5150 llvm_unreachable("Handled in RemoveWrappingTypes!")::llvm::llvm_unreachable_internal("Handled in RemoveWrappingTypes!"
, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp",
5150)
;
5151 case clang::Type::UnaryTransform:
5152 break;
5153
5154 case clang::Type::FunctionNoProto:
5155 case clang::Type::FunctionProto:
5156 break;
5157
5158 case clang::Type::IncompleteArray:
5159 case clang::Type::VariableArray:
5160 break;
5161
5162 case clang::Type::ConstantArray:
5163 return lldb::eFormatVoid; // no value
5164
5165 case clang::Type::DependentVector:
5166 case clang::Type::ExtVector:
5167 case clang::Type::Vector:
5168 break;
5169
5170 case clang::Type::BitInt:
5171 case clang::Type::DependentBitInt:
5172 return qual_type->isUnsignedIntegerType() ? lldb::eFormatUnsigned
5173 : lldb::eFormatDecimal;
5174
5175 case clang::Type::Builtin:
5176 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
5177 case clang::BuiltinType::UnknownAny:
5178 case clang::BuiltinType::Void:
5179 case clang::BuiltinType::BoundMember:
5180 break;
5181
5182 case clang::BuiltinType::Bool:
5183 return lldb::eFormatBoolean;
5184 case clang::BuiltinType::Char_S:
5185 case clang::BuiltinType::SChar:
5186 case clang::BuiltinType::WChar_S:
5187 case clang::BuiltinType::Char_U:
5188 case clang::BuiltinType::UChar:
5189 case clang::BuiltinType::WChar_U:
5190 return lldb::eFormatChar;
5191 case clang::BuiltinType::Char8:
5192 return lldb::eFormatUnicode8;
5193 case clang::BuiltinType::Char16:
5194 return lldb::eFormatUnicode16;
5195 case clang::BuiltinType::Char32:
5196 return lldb::eFormatUnicode32;
5197 case clang::BuiltinType::UShort:
5198 return lldb::eFormatUnsigned;
5199 case clang::BuiltinType::Short:
5200 return lldb::eFormatDecimal;
5201 case clang::BuiltinType::UInt:
5202 return lldb::eFormatUnsigned;
5203 case clang::BuiltinType::Int:
5204 return lldb::eFormatDecimal;
5205 case clang::BuiltinType::ULong:
5206 return lldb::eFormatUnsigned;
5207 case clang::BuiltinType::Long:
5208 return lldb::eFormatDecimal;
5209 case clang::BuiltinType::ULongLong:
5210 return lldb::eFormatUnsigned;
5211 case clang::BuiltinType::LongLong:
5212 return lldb::eFormatDecimal;
5213 case clang::BuiltinType::UInt128:
5214 return lldb::eFormatUnsigned;
5215 case clang::BuiltinType::Int128:
5216 return lldb::eFormatDecimal;
5217 case clang::BuiltinType::Half:
5218 case clang::BuiltinType::Float:
5219 case clang::BuiltinType::Double:
5220 case clang::BuiltinType::LongDouble:
5221 return lldb::eFormatFloat;
5222 default:
5223 return lldb::eFormatHex;
5224 }
5225 break;
5226 case clang::Type::ObjCObjectPointer:
5227 return lldb::eFormatHex;
5228 case clang::Type::BlockPointer:
5229 return lldb::eFormatHex;
5230 case clang::Type::Pointer:
5231 return lldb::eFormatHex;
5232 case clang::Type::LValueReference:
5233 case clang::Type::RValueReference:
5234 return lldb::eFormatHex;
5235 case clang::Type::MemberPointer:
5236 break;
5237 case clang::Type::Complex: {
5238 if (qual_type->isComplexType())
5239 return lldb::eFormatComplex;
5240 else
5241 return lldb::eFormatComplexInteger;
5242 }
5243 case clang::Type::ObjCInterface:
5244 break;
5245 case clang::Type::Record:
5246 break;
5247 case clang::Type::Enum:
5248 return lldb::eFormatEnum;
5249 case clang::Type::DependentSizedArray:
5250 case clang::Type::DependentSizedExtVector:
5251 case clang::Type::UnresolvedUsing:
5252 case clang::Type::Attributed:
5253 case clang::Type::TemplateTypeParm:
5254 case clang::Type::SubstTemplateTypeParm:
5255 case clang::Type::SubstTemplateTypeParmPack:
5256 case clang::Type::InjectedClassName:
5257 case clang::Type::DependentName:
5258 case clang::Type::DependentTemplateSpecialization:
5259 case clang::Type::PackExpansion:
5260 case clang::Type::ObjCObject:
5261
5262 case clang::Type::TemplateSpecialization:
5263 case clang::Type::DeducedTemplateSpecialization:
5264 case clang::Type::Adjusted:
5265 case clang::Type::Pipe:
5266 break;
5267
5268 // pointer type decayed from an array or function type.
5269 case clang::Type::Decayed:
5270 break;
5271 case clang::Type::ObjCTypeParam:
5272 break;
5273
5274 case clang::Type::DependentAddressSpace:
5275 break;
5276 case clang::Type::MacroQualified:
5277 break;
5278
5279 // Matrix types we're not sure how to display yet.
5280 case clang::Type::ConstantMatrix:
5281 case clang::Type::DependentSizedMatrix:
5282 break;
5283 }
5284 // We don't know hot to display this type...
5285 return lldb::eFormatBytes;
5286}
5287
5288static bool ObjCDeclHasIVars(clang::ObjCInterfaceDecl *class_interface_decl,
5289 bool check_superclass) {
5290 while (class_interface_decl) {
5291 if (class_interface_decl->ivar_size() > 0)
5292 return true;
5293
5294 if (check_superclass)
5295 class_interface_decl = class_interface_decl->getSuperClass();
5296 else
5297 break;
5298 }
5299 return false;
5300}
5301
5302static Optional<SymbolFile::ArrayInfo>
5303GetDynamicArrayInfo(TypeSystemClang &ast, SymbolFile *sym_file,
5304 clang::QualType qual_type,
5305 const ExecutionContext *exe_ctx) {
5306 if (qual_type->isIncompleteArrayType())
5307 if (auto *metadata = ast.GetMetadata(qual_type.getTypePtr()))
5308 return sym_file->GetDynamicArrayInfoForUID(metadata->GetUserID(),
5309 exe_ctx);
5310 return llvm::None;
5311}
5312
5313uint32_t TypeSystemClang::GetNumChildren(lldb::opaque_compiler_type_t type,
5314 bool omit_empty_base_classes,
5315 const ExecutionContext *exe_ctx) {
5316 if (!type)
5317 return 0;
5318
5319 uint32_t num_children = 0;
5320 clang::QualType qual_type(RemoveWrappingTypes(GetQualType(type)));
5321 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5322 switch (type_class) {
5323 case clang::Type::Builtin:
5324 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
5325 case clang::BuiltinType::ObjCId: // child is Class
5326 case clang::BuiltinType::ObjCClass: // child is Class
5327 num_children = 1;
5328 break;
5329
5330 default:
5331 break;
5332 }
5333 break;
5334
5335 case clang::Type::Complex:
5336 return 0;
5337 case clang::Type::Record:
5338 if (GetCompleteQualType(&getASTContext(), qual_type)) {
5339 const clang::RecordType *record_type =
5340 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
5341 const clang::RecordDecl *record_decl = record_type->getDecl();
5342 assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail
("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 5342, __extension__ __PRETTY_FUNCTION__))
;
5343 const clang::CXXRecordDecl *cxx_record_decl =
5344 llvm::dyn_cast<clang::CXXRecordDecl>(record_decl);
5345 if (cxx_record_decl) {
5346 if (omit_empty_base_classes) {
5347 // Check each base classes to see if it or any of its base classes
5348 // contain any fields. This can help limit the noise in variable
5349 // views by not having to show base classes that contain no members.
5350 clang::CXXRecordDecl::base_class_const_iterator base_class,
5351 base_class_end;
5352 for (base_class = cxx_record_decl->bases_begin(),
5353 base_class_end = cxx_record_decl->bases_end();
5354 base_class != base_class_end; ++base_class) {
5355 const clang::CXXRecordDecl *base_class_decl =
5356 llvm::cast<clang::CXXRecordDecl>(
5357 base_class->getType()
5358 ->getAs<clang::RecordType>()
5359 ->getDecl());
5360
5361 // Skip empty base classes
5362 if (!TypeSystemClang::RecordHasFields(base_class_decl))
5363 continue;
5364
5365 num_children++;
5366 }
5367 } else {
5368 // Include all base classes
5369 num_children += cxx_record_decl->getNumBases();
5370 }
5371 }
5372 clang::RecordDecl::field_iterator field, field_end;
5373 for (field = record_decl->field_begin(),
5374 field_end = record_decl->field_end();
5375 field != field_end; ++field)
5376 ++num_children;
5377 }
5378 break;
5379
5380 case clang::Type::ObjCObject:
5381 case clang::Type::ObjCInterface:
5382 if (GetCompleteQualType(&getASTContext(), qual_type)) {
5383 const clang::ObjCObjectType *objc_class_type =
5384 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
5385 assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail
("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 5385, __extension__ __PRETTY_FUNCTION__))
;
5386 if (objc_class_type) {
5387 clang::ObjCInterfaceDecl *class_interface_decl =
5388 objc_class_type->getInterface();
5389
5390 if (class_interface_decl) {
5391
5392 clang::ObjCInterfaceDecl *superclass_interface_decl =
5393 class_interface_decl->getSuperClass();
5394 if (superclass_interface_decl) {
5395 if (omit_empty_base_classes) {
5396 if (ObjCDeclHasIVars(superclass_interface_decl, true))
5397 ++num_children;
5398 } else
5399 ++num_children;
5400 }
5401
5402 num_children += class_interface_decl->ivar_size();
5403 }
5404 }
5405 }
5406 break;
5407
5408 case clang::Type::LValueReference:
5409 case clang::Type::RValueReference:
5410 case clang::Type::ObjCObjectPointer: {
5411 CompilerType pointee_clang_type(GetPointeeType(type));
5412
5413 uint32_t num_pointee_children = 0;
5414 if (pointee_clang_type.IsAggregateType())
5415 num_pointee_children =
5416 pointee_clang_type.GetNumChildren(omit_empty_base_classes, exe_ctx);
5417 // If this type points to a simple type, then it has 1 child
5418 if (num_pointee_children == 0)
5419 num_children = 1;
5420 else
5421 num_children = num_pointee_children;
5422 } break;
5423
5424 case clang::Type::Vector:
5425 case clang::Type::ExtVector:
5426 num_children =
5427 llvm::cast<clang::VectorType>(qual_type.getTypePtr())->getNumElements();
5428 break;
5429
5430 case clang::Type::ConstantArray:
5431 num_children = llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr())
5432 ->getSize()
5433 .getLimitedValue();
5434 break;
5435 case clang::Type::IncompleteArray:
5436 if (auto array_info =
5437 GetDynamicArrayInfo(*this, GetSymbolFile(), qual_type, exe_ctx))
5438 // Only 1-dimensional arrays are supported.
5439 num_children = array_info->element_orders.size()
5440 ? array_info->element_orders.back()
5441 : 0;
5442 break;
5443
5444 case clang::Type::Pointer: {
5445 const clang::PointerType *pointer_type =
5446 llvm::cast<clang::PointerType>(qual_type.getTypePtr());
5447 clang::QualType pointee_type(pointer_type->getPointeeType());
5448 CompilerType pointee_clang_type(GetType(pointee_type));
5449 uint32_t num_pointee_children = 0;
5450 if (pointee_clang_type.IsAggregateType())
5451 num_pointee_children =
5452 pointee_clang_type.GetNumChildren(omit_empty_base_classes, exe_ctx);
5453 if (num_pointee_children == 0) {
5454 // We have a pointer to a pointee type that claims it has no children. We
5455 // will want to look at
5456 num_children = GetNumPointeeChildren(pointee_type);
5457 } else
5458 num_children = num_pointee_children;
5459 } break;
5460
5461 default:
5462 break;
5463 }
5464 return num_children;
5465}
5466
5467CompilerType TypeSystemClang::GetBuiltinTypeByName(ConstString name) {
5468 return GetBasicType(GetBasicTypeEnumeration(name));
5469}
5470
5471lldb::BasicType
5472TypeSystemClang::GetBasicTypeEnumeration(lldb::opaque_compiler_type_t type) {
5473 if (type) {
5474 clang::QualType qual_type(GetQualType(type));
5475 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5476 if (type_class == clang::Type::Builtin) {
5477 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
5478 case clang::BuiltinType::Void:
5479 return eBasicTypeVoid;
5480 case clang::BuiltinType::Bool:
5481 return eBasicTypeBool;
5482 case clang::BuiltinType::Char_S:
5483 return eBasicTypeSignedChar;
5484 case clang::BuiltinType::Char_U:
5485 return eBasicTypeUnsignedChar;
5486 case clang::BuiltinType::Char16:
5487 return eBasicTypeChar16;
5488 case clang::BuiltinType::Char32:
5489 return eBasicTypeChar32;
5490 case clang::BuiltinType::UChar:
5491 return eBasicTypeUnsignedChar;
5492 case clang::BuiltinType::SChar:
5493 return eBasicTypeSignedChar;
5494 case clang::BuiltinType::WChar_S:
5495 return eBasicTypeSignedWChar;
5496 case clang::BuiltinType::WChar_U:
5497 return eBasicTypeUnsignedWChar;
5498 case clang::BuiltinType::Short:
5499 return eBasicTypeShort;
5500 case clang::BuiltinType::UShort:
5501 return eBasicTypeUnsignedShort;
5502 case clang::BuiltinType::Int:
5503 return eBasicTypeInt;
5504 case clang::BuiltinType::UInt:
5505 return eBasicTypeUnsignedInt;
5506 case clang::BuiltinType::Long:
5507 return eBasicTypeLong;
5508 case clang::BuiltinType::ULong:
5509 return eBasicTypeUnsignedLong;
5510 case clang::BuiltinType::LongLong:
5511 return eBasicTypeLongLong;
5512 case clang::BuiltinType::ULongLong:
5513 return eBasicTypeUnsignedLongLong;
5514 case clang::BuiltinType::Int128:
5515 return eBasicTypeInt128;
5516 case clang::BuiltinType::UInt128:
5517 return eBasicTypeUnsignedInt128;
5518
5519 case clang::BuiltinType::Half:
5520 return eBasicTypeHalf;
5521 case clang::BuiltinType::Float:
5522 return eBasicTypeFloat;
5523 case clang::BuiltinType::Double:
5524 return eBasicTypeDouble;
5525 case clang::BuiltinType::LongDouble:
5526 return eBasicTypeLongDouble;
5527
5528 case clang::BuiltinType::NullPtr:
5529 return eBasicTypeNullPtr;
5530 case clang::BuiltinType::ObjCId:
5531 return eBasicTypeObjCID;
5532 case clang::BuiltinType::ObjCClass:
5533 return eBasicTypeObjCClass;
5534 case clang::BuiltinType::ObjCSel:
5535 return eBasicTypeObjCSel;
5536 default:
5537 return eBasicTypeOther;
5538 }
5539 }
5540 }
5541 return eBasicTypeInvalid;
5542}
5543
5544void TypeSystemClang::ForEachEnumerator(
5545 lldb::opaque_compiler_type_t type,
5546 std::function<bool(const CompilerType &integer_type,
5547 ConstString name,
5548 const llvm::APSInt &value)> const &callback) {
5549 const clang::EnumType *enum_type =
5550 llvm::dyn_cast<clang::EnumType>(GetCanonicalQualType(type));
5551 if (enum_type) {
5552 const clang::EnumDecl *enum_decl = enum_type->getDecl();
5553 if (enum_decl) {
5554 CompilerType integer_type = GetType(enum_decl->getIntegerType());
5555
5556 clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos;
5557 for (enum_pos = enum_decl->enumerator_begin(),
5558 enum_end_pos = enum_decl->enumerator_end();
5559 enum_pos != enum_end_pos; ++enum_pos) {
5560 ConstString name(enum_pos->getNameAsString().c_str());
5561 if (!callback(integer_type, name, enum_pos->getInitVal()))
5562 break;
5563 }
5564 }
5565 }
5566}
5567
5568#pragma mark Aggregate Types
5569
5570uint32_t TypeSystemClang::GetNumFields(lldb::opaque_compiler_type_t type) {
5571 if (!type)
5572 return 0;
5573
5574 uint32_t count = 0;
5575 clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type)));
5576 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5577 switch (type_class) {
5578 case clang::Type::Record:
5579 if (GetCompleteType(type)) {
5580 const clang::RecordType *record_type =
5581 llvm::dyn_cast<clang::RecordType>(qual_type.getTypePtr());
5582 if (record_type) {
5583 clang::RecordDecl *record_decl = record_type->getDecl();
5584 if (record_decl) {
5585 uint32_t field_idx = 0;
5586 clang::RecordDecl::field_iterator field, field_end;
5587 for (field = record_decl->field_begin(),
5588 field_end = record_decl->field_end();
5589 field != field_end; ++field)
5590 ++field_idx;
5591 count = field_idx;
5592 }
5593 }
5594 }
5595 break;
5596
5597 case clang::Type::ObjCObjectPointer: {
5598 const clang::ObjCObjectPointerType *objc_class_type =
5599 qual_type->getAs<clang::ObjCObjectPointerType>();
5600 const clang::ObjCInterfaceType *objc_interface_type =
5601 objc_class_type->getInterfaceType();
5602 if (objc_interface_type &&
5603 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
5604 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
5605 clang::ObjCInterfaceDecl *class_interface_decl =
5606 objc_interface_type->getDecl();
5607 if (class_interface_decl) {
5608 count = class_interface_decl->ivar_size();
5609 }
5610 }
5611 break;
5612 }
5613
5614 case clang::Type::ObjCObject:
5615 case clang::Type::ObjCInterface:
5616 if (GetCompleteType(type)) {
5617 const clang::ObjCObjectType *objc_class_type =
5618 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
5619 if (objc_class_type) {
5620 clang::ObjCInterfaceDecl *class_interface_decl =
5621 objc_class_type->getInterface();
5622
5623 if (class_interface_decl)
5624 count = class_interface_decl->ivar_size();
5625 }
5626 }
5627 break;
5628
5629 default:
5630 break;
5631 }
5632 return count;
5633}
5634
5635static lldb::opaque_compiler_type_t
5636GetObjCFieldAtIndex(clang::ASTContext *ast,
5637 clang::ObjCInterfaceDecl *class_interface_decl, size_t idx,
5638 std::string &name, uint64_t *bit_offset_ptr,
5639 uint32_t *bitfield_bit_size_ptr, bool *is_bitfield_ptr) {
5640 if (class_interface_decl) {
5641 if (idx < (class_interface_decl->ivar_size())) {
5642 clang::ObjCInterfaceDecl::ivar_iterator ivar_pos,
5643 ivar_end = class_interface_decl->ivar_end();
5644 uint32_t ivar_idx = 0;
5645
5646 for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end;
5647 ++ivar_pos, ++ivar_idx) {
5648 if (ivar_idx == idx) {
5649 const clang::ObjCIvarDecl *ivar_decl = *ivar_pos;
5650
5651 clang::QualType ivar_qual_type(ivar_decl->getType());
5652
5653 name.assign(ivar_decl->getNameAsString());
5654
5655 if (bit_offset_ptr) {
5656 const clang::ASTRecordLayout &interface_layout =
5657 ast->getASTObjCInterfaceLayout(class_interface_decl);
5658 *bit_offset_ptr = interface_layout.getFieldOffset(ivar_idx);
5659 }
5660
5661 const bool is_bitfield = ivar_pos->isBitField();
5662
5663 if (bitfield_bit_size_ptr) {
5664 *bitfield_bit_size_ptr = 0;
5665
5666 if (is_bitfield && ast) {
5667 clang::Expr *bitfield_bit_size_expr = ivar_pos->getBitWidth();
5668 clang::Expr::EvalResult result;
5669 if (bitfield_bit_size_expr &&
5670 bitfield_bit_size_expr->EvaluateAsInt(result, *ast)) {
5671 llvm::APSInt bitfield_apsint = result.Val.getInt();
5672 *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue();
5673 }
5674 }
5675 }
5676 if (is_bitfield_ptr)
5677 *is_bitfield_ptr = is_bitfield;
5678
5679 return ivar_qual_type.getAsOpaquePtr();
5680 }
5681 }
5682 }
5683 }
5684 return nullptr;
5685}
5686
5687CompilerType TypeSystemClang::GetFieldAtIndex(lldb::opaque_compiler_type_t type,
5688 size_t idx, std::string &name,
5689 uint64_t *bit_offset_ptr,
5690 uint32_t *bitfield_bit_size_ptr,
5691 bool *is_bitfield_ptr) {
5692 if (!type)
5693 return CompilerType();
5694
5695 clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type)));
5696 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5697 switch (type_class) {
5698 case clang::Type::Record:
5699 if (GetCompleteType(type)) {
5700 const clang::RecordType *record_type =
5701 llvm::cast<clang::RecordType>(qual_type.getTypePtr());
5702 const clang::RecordDecl *record_decl = record_type->getDecl();
5703 uint32_t field_idx = 0;
5704 clang::RecordDecl::field_iterator field, field_end;
5705 for (field = record_decl->field_begin(),
5706 field_end = record_decl->field_end();
5707 field != field_end; ++field, ++field_idx) {
5708 if (idx == field_idx) {
5709 // Print the member type if requested
5710 // Print the member name and equal sign
5711 name.assign(field->getNameAsString());
5712
5713 // Figure out the type byte size (field_type_info.first) and
5714 // alignment (field_type_info.second) from the AST context.
5715 if (bit_offset_ptr) {
5716 const clang::ASTRecordLayout &record_layout =
5717 getASTContext().getASTRecordLayout(record_decl);
5718 *bit_offset_ptr = record_layout.getFieldOffset(field_idx);
5719 }
5720
5721 const bool is_bitfield = field->isBitField();
5722
5723 if (bitfield_bit_size_ptr) {
5724 *bitfield_bit_size_ptr = 0;
5725
5726 if (is_bitfield) {
5727 clang::Expr *bitfield_bit_size_expr = field->getBitWidth();
5728 clang::Expr::EvalResult result;
5729 if (bitfield_bit_size_expr &&
5730 bitfield_bit_size_expr->EvaluateAsInt(result,
5731 getASTContext())) {
5732 llvm::APSInt bitfield_apsint = result.Val.getInt();
5733 *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue();
5734 }
5735 }
5736 }
5737 if (is_bitfield_ptr)
5738 *is_bitfield_ptr = is_bitfield;
5739
5740 return GetType(field->getType());
5741 }
5742 }
5743 }
5744 break;
5745
5746 case clang::Type::ObjCObjectPointer: {
5747 const clang::ObjCObjectPointerType *objc_class_type =
5748 qual_type->getAs<clang::ObjCObjectPointerType>();
5749 const clang::ObjCInterfaceType *objc_interface_type =
5750 objc_class_type->getInterfaceType();
5751 if (objc_interface_type &&
5752 GetCompleteType(static_cast<lldb::opaque_compiler_type_t>(
5753 const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) {
5754 clang::ObjCInterfaceDecl *class_interface_decl =
5755 objc_interface_type->getDecl();
5756 if (class_interface_decl) {
5757 return CompilerType(
5758 this, GetObjCFieldAtIndex(&getASTContext(), class_interface_decl,
5759 idx, name, bit_offset_ptr,
5760 bitfield_bit_size_ptr, is_bitfield_ptr));
5761 }
5762 }
5763 break;
5764 }
5765
5766 case clang::Type::ObjCObject:
5767 case clang::Type::ObjCInterface:
5768 if (GetCompleteType(type)) {
5769 const clang::ObjCObjectType *objc_class_type =
5770 llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr());
5771 assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail
("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp"
, 5771, __extension__ __PRETTY_FUNCTION__))
;
5772 if (objc_class_type) {
5773 clang::ObjCInterfaceDecl *class_interface_decl =
5774 objc_class_type->getInterface();
5775 return CompilerType(
5776 this, GetObjCFieldAtIndex(&getASTContext(), class_interface_decl,
5777 idx, name, bit_offset_ptr,
5778 bitfield_bit_size_ptr, is_bitfield_ptr));
5779 }
5780 }
5781 break;
5782
5783 default:
5784 break;
5785 }
5786 return CompilerType();
5787}
5788
5789uint32_t
5790TypeSystemClang::GetNumDirectBaseClasses(lldb::opaque_compiler_type_t type) {
5791 uint32_t count = 0;
5792 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
5793 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5794 switch (type_class) {
5795 case clang::Type::Record:
5796 if (GetCompleteType(type)) {
5797 const clang::CXXRecordDecl *cxx_record_decl =
5798 qual_type->getAsCXXRecordDecl();
5799 if (cxx_record_decl)
5800 count = cxx_record_decl->getNumBases();
5801 }
5802 break;
5803
5804 case clang::Type::ObjCObjectPointer:
5805 count = GetPointeeType(type).GetNumDirectBaseClasses();
5806 break;
5807
5808 case clang::Type::ObjCObject:
5809 if (GetCompleteType(type)) {
5810 const clang::ObjCObjectType *objc_class_type =
5811 qual_type->getAsObjCQualifiedInterfaceType();
5812 if (objc_class_type) {
5813 clang::ObjCInterfaceDecl *class_interface_decl =
5814 objc_class_type->getInterface();
5815
5816 if (class_interface_decl && class_interface_decl->getSuperClass())
5817 count = 1;
5818 }
5819 }
5820 break;
5821 case clang::Type::ObjCInterface:
5822 if (GetCompleteType(type)) {
5823 const clang::ObjCInterfaceType *objc_interface_type =
5824 qual_type->getAs<clang::ObjCInterfaceType>();
5825 if (objc_interface_type) {
5826 clang::ObjCInterfaceDecl *class_interface_decl =
5827 objc_interface_type->getInterface();
5828
5829 if (class_interface_decl && class_interface_decl->getSuperClass())
5830 count = 1;
5831 }
5832 }
5833 break;
5834
5835 default:
5836 break;
5837 }
5838 return count;
5839}
5840
5841uint32_t
5842TypeSystemClang::GetNumVirtualBaseClasses(lldb::opaque_compiler_type_t type) {
5843 uint32_t count = 0;
5844 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
5845 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5846 switch (type_class) {
5847 case clang::Type::Record:
5848 if (GetCompleteType(type)) {
5849 const clang::CXXRecordDecl *cxx_record_decl =
5850 qual_type->getAsCXXRecordDecl();
5851 if (cxx_record_decl)
5852 count = cxx_record_decl->getNumVBases();
5853 }
5854 break;
5855
5856 default:
5857 break;
5858 }
5859 return count;
5860}
5861
5862CompilerType TypeSystemClang::GetDirectBaseClassAtIndex(
5863 lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) {
5864 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
5865 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5866 switch (type_class) {
5867 case clang::Type::Record:
5868 if (GetCompleteType(type)) {
5869 const clang::CXXRecordDecl *cxx_record_decl =
5870 qual_type->getAsCXXRecordDecl();
5871 if (cxx_record_decl) {
5872 uint32_t curr_idx = 0;
5873 clang::CXXRecordDecl::base_class_const_iterator base_class,
5874 base_class_end;
5875 for (base_class = cxx_record_decl->bases_begin(),
5876 base_class_end = cxx_record_decl->bases_end();
5877 base_class != base_class_end; ++base_class, ++curr_idx) {
5878 if (curr_idx == idx) {
5879 if (bit_offset_ptr) {
5880 const clang::ASTRecordLayout &record_layout =
5881 getASTContext().getASTRecordLayout(cxx_record_decl);
5882 const clang::CXXRecordDecl *base_class_decl =
5883 llvm::cast<clang::CXXRecordDecl>(
5884 base_class->getType()
5885 ->getAs<clang::RecordType>()
5886 ->getDecl());
5887 if (base_class->isVirtual())
5888 *bit_offset_ptr =
5889 record_layout.getVBaseClassOffset(base_class_decl)
5890 .getQuantity() *
5891 8;
5892 else
5893 *bit_offset_ptr =
5894 record_layout.getBaseClassOffset(base_class_decl)
5895 .getQuantity() *
5896 8;
5897 }
5898 return GetType(base_class->getType());
5899 }
5900 }
5901 }
5902 }
5903 break;
5904
5905 case clang::Type::ObjCObjectPointer:
5906 return GetPointeeType(type).GetDirectBaseClassAtIndex(idx, bit_offset_ptr);
5907
5908 case clang::Type::ObjCObject:
5909 if (idx == 0 && GetCompleteType(type)) {
5910 const clang::ObjCObjectType *objc_class_type =
5911 qual_type->getAsObjCQualifiedInterfaceType();
5912 if (objc_class_type) {
5913 clang::ObjCInterfaceDecl *class_interface_decl =
5914 objc_class_type->getInterface();
5915
5916 if (class_interface_decl) {
5917 clang::ObjCInterfaceDecl *superclass_interface_decl =
5918 class_interface_decl->getSuperClass();
5919 if (superclass_interface_decl) {
5920 if (bit_offset_ptr)
5921 *bit_offset_ptr = 0;
5922 return GetType(getASTContext().getObjCInterfaceType(
5923 superclass_interface_decl));
5924 }
5925 }
5926 }
5927 }
5928 break;
5929 case clang::Type::ObjCInterface:
5930 if (idx == 0 && GetCompleteType(type)) {
5931 const clang::ObjCObjectType *objc_interface_type =
5932 qual_type->getAs<clang::ObjCInterfaceType>();
5933 if (objc_interface_type) {
5934 clang::ObjCInterfaceDecl *class_interface_decl =
5935 objc_interface_type->getInterface();
5936
5937 if (class_interface_decl) {
5938 clang::ObjCInterfaceDecl *superclass_interface_decl =
5939 class_interface_decl->getSuperClass();
5940 if (superclass_interface_decl) {
5941 if (bit_offset_ptr)
5942 *bit_offset_ptr = 0;
5943 return GetType(getASTContext().getObjCInterfaceType(
5944 superclass_interface_decl));
5945 }
5946 }
5947 }
5948 }
5949 break;
5950
5951 default:
5952 break;
5953 }
5954 return CompilerType();
5955}
5956
5957CompilerType TypeSystemClang::GetVirtualBaseClassAtIndex(
5958 lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) {
5959 clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type));
5960 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
5961 switch (type_class) {
1
Control jumps to 'case Record:' at line 5962
5962 case clang::Type::Record:
5963 if (GetCompleteType(type)) {
2
Assuming the condition is true
3
Taking true branch
5964 const clang::CXXRecordDecl *cxx_record_decl =
5965 qual_type->getAsCXXRecordDecl();
5966 if (cxx_record_decl) {
4
Assuming 'cxx_record_decl' is non-null
5
Taking true branch
5967 uint32_t curr_idx = 0;
5968 clang::CXXRecordDecl::base_class_const_iterator base_class,
5969 base_class_end;
5970 for (base_class = cxx_record_decl->vbases_begin(),
6
Loop condition is true. Entering loop body
5971 base_class_end = cxx_record_decl->vbases_end();
5972 base_class != base_class_end; ++base_class, ++curr_idx) {
5973 if (curr_idx == idx) {
7
Assuming 'curr_idx' is equal to 'idx'
8
Taking true branch
5974 if (bit_offset_ptr) {
9
Assuming 'bit_offset_ptr' is non-null
10
Taking true branch
5975 const clang::ASTRecordLayout &record_layout =
5976 getASTContext().getASTRecordLayout(cxx_record_decl);
5977 const clang::CXXRecordDecl *base_class_decl =
5978 llvm::cast<clang::CXXRecordDecl>(
5979 base_class->getType()
11
Assuming the object is not a 'RecordType'
12
Called C++ object pointer is null
5980 ->getAs<clang::RecordType>()
5981 ->getDecl());
5982 *bit_offset_ptr =
5983 record_layout.getVBaseClassOffset(base_class_decl)
5984 .getQuantity() *
5985 8;
5986 }
5987 return GetType(base_class->getType());
5988 }
5989 }
5990 }
5991 }
5992 break;
5993
5994 default:
5995 break;
5996 }
5997 return CompilerType();
5998}
5999
6000// If a pointer to a pointee type (the clang_type arg) says that it has no
6001// children, then we either need to trust it, or override it and return a
6002// different result. For example, an "int *" has one child that is an integer,
6003// but a function pointer doesn't have any children. Likewise if a Record type
6004// claims it has no children, then there really is nothing to show.
6005uint32_t TypeSystemClang::GetNumPointeeChildren(clang::QualType type) {
6006 if (type.isNull())
6007 return 0;
6008
6009 clang::QualType qual_type = RemoveWrappingTypes(type.getCanonicalType());
6010 const clang::Type::TypeClass type_class = qual_type->getTypeClass();
6011 switch (type_class) {
6012 case clang::Type::Builtin:
6013 switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) {
6014 case clang::BuiltinType::UnknownAny:
6015 case clang::BuiltinType::Void:
6016 case clang::BuiltinType::NullPtr:
6017 case clang::BuiltinType::OCLEvent:
6018 case clang::BuiltinType::OCLImage1dRO:
6019 case clang::BuiltinType::OCLImage1dWO:
6020 case clang::BuiltinType::OCLImage1dRW:
6021 case clang::BuiltinType::OCLImage1dArrayRO:
6022 case clang::BuiltinType::OCLImage1dArrayWO:
6023 case clang::BuiltinType::OCLImage1dArrayRW:
6024 case clang::BuiltinType::OCLImage1dBufferRO:
6025 case clang::BuiltinType::OCLImage1dBufferWO:
6026 case clang::BuiltinType::OCLImage1dBufferRW:
6027 case clang::BuiltinType::OCLImage2dRO:
6028 case clang::BuiltinType::OCLImage2dWO:
6029 case clang::BuiltinType::OCLImage2dRW:
6030 case clang::BuiltinType::OCLImage2dArrayRO:
6031 case clang::BuiltinType::OCLImage2dArrayWO:
6032 case clang::BuiltinType::OCLImage2dArrayRW:
6033 case clang::BuiltinType::OCLImage3dRO:
6034 case clang::BuiltinType::OCLImage3dWO:
6035 case clang::BuiltinType::OCLImage3dRW:
6036 case clang::BuiltinType::OCLSampler:
6037 return 0;
6038 case clang::BuiltinType::Bool:
6039 case clang::BuiltinType::Char_U:
6040 case clang::BuiltinType::UChar:
6041 case clang::BuiltinType::WChar_U:
6042 case clang::BuiltinType::Char16:
6043 case clang::BuiltinType::Char32:
6044 case clang::BuiltinType::UShort:
6045 case clang::BuiltinType::UInt:
6046 case clang::BuiltinType::ULong:
6047 case clang::BuiltinType::ULongLong:
6048 case clang::BuiltinType::UInt128:
6049 case clang::BuiltinType::Char_S:
6050 case clang::BuiltinType::SChar:
6051 case clang::BuiltinType::WChar_S:
6052 case clang::BuiltinType::Short:
6053 case clang::BuiltinType::Int:
6054 case clang::BuiltinType::Long:
6055 case clang::BuiltinType::LongLong:
6056 case clang::BuiltinType::Int128:
6057 case clang::BuiltinType::Float:
6058 case clang::BuiltinType::Double:
6059 case clang::BuiltinType::LongDouble:
6060 case clang::BuiltinType::Dependent:
6061 case clang::BuiltinType::Overload:
6062 case clang::BuiltinType::ObjCId:
6063 case clang::BuiltinType::ObjCClass:
6064 case clang::BuiltinType::ObjCSel:
6065 case clang::BuiltinType::BoundMember:
6066 case clang::BuiltinType::Half:
6067 case clang::BuiltinType::ARCUnbridgedCast:
6068 case clang::BuiltinType::PseudoObject:
6069 case clang::BuiltinType::BuiltinFn:
6070 case clang::BuiltinType::OMPArraySection:
6071 return 1;
6072 default:
6073 return 0;
6074 }
6075 break;
6076
6077 case clang::Type::Complex:
6078 return 1;
6079 case clang::Type::Pointer:
6080 return 1;
6081 case clang::Type::BlockPointer:
6082 return 0; // If block pointers don't have debug info, then no children for
6083 // them
6084 case clang::Type::LValueReference:
6085 return 1;
6086 case clang::Type::RValueReference:
6087 return 1;
6088 case clang::Type::MemberPointer:
6089 return 0;
6090 case clang::Type::ConstantArray:
6091 return 0;
6092 case clang::Type::IncompleteArray:
6093 return 0;
6094 case clang::Type::VariableArray:
6095 return 0;
6096 case clang::Type::DependentSizedArray:
6097 return 0;
6098 case clang::Type::DependentSizedExtVector:
6099 return 0;
6100 case clang::Type::Vector:
6101 return 0;
6102 case clang::Type::ExtVector:
6103 return 0;
6104 case clang::Type::FunctionProto:
6105 return 0; // When we function pointers, they have no children...
6106 case clang::Type::FunctionNoProto:
6107 return 0; // When we function pointers, they have no children...
6108 case clang::Type::UnresolvedUsing:
6109 return 0;
6110 case clang::Type::Record:
6111 return 0;
6112 case clang::Type::Enum:
6113 return 1;
6114 case clang::Type::TemplateTypeParm:
6115 return 1;
6116 case clang::Type::SubstTemplateTypeParm:
6117 return 1;
6118 case clang::Type::TemplateSpecialization:
6119 return 1;
6120 case clang::Type::InjectedClassName:
6121 return 0;
6122 case clang::Type::DependentName:
6123 return 1;
6124 case clang::Type::DependentTemplateSpecialization:
6125 return 1;
6126 case clang::Type::ObjCObject:
6127 return 0;
6128 case clang::Type::ObjCInterface:
6129 return 0;
6130 case clang::Type::ObjCObjectPointer:
6131 return 1;
6132 default:
6133 break;
6134 }
6135 return 0;
6136}
6137
6138CompilerType TypeSystemClang::GetChildCompilerTypeAtIndex(
6139 lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, size_t idx,
6140 bool transparent_pointers, bool omit_empty_base_classes,
6141 bool ignore_array_bounds, std::string &child_name,
6142 uint32_t &child_byte_size, int32_t &child_byte_offset,
6143 uint32_t &child_bitfield_bit_size, uint32_t &child_bitfield_bit_offset,
6144 bool &child_is_base_class, bool &child_is_deref_of_parent,
6145 ValueObject *valobj, uint64_t &language_flags) {
6146 if (!type)
6147 return CompilerType();
6148
6149 auto get_exe_scope = [&exe_ctx]() {
6150 return exe_ctx ? exe_ctx->GetBestExecutionContextScope() : nullptr;
6151 };
6152
6153 clang::QualType parent_qual_type(
6154 RemoveWrappingTypes(GetCanonicalQualType(type)));
6155 const clang::Type::TypeClass parent_type_class =
6156 parent_qual_type->getTypeClass();
6157 child_bitfield_bit_size = 0;
6158 child_bitfield_bit_offset = 0;
6159 child_is_base_class = false;
6160 language_flags = 0;