File: | build/llvm-toolchain-snapshot-15~++20220420111733+e13d2efed663/lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp |
Warning: | line 9076, column 17 Although the value stored to 'bytes_read' is used in the enclosing expression, the value is never actually read from 'bytes_read' |
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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/Core/DumpDataExtractor.h" |
54 | #include "lldb/Core/Module.h" |
55 | #include "lldb/Core/PluginManager.h" |
56 | #include "lldb/Core/StreamFile.h" |
57 | #include "lldb/Core/ThreadSafeDenseMap.h" |
58 | #include "lldb/Core/UniqueCStringMap.h" |
59 | #include "lldb/Symbol/ObjectFile.h" |
60 | #include "lldb/Symbol/SymbolFile.h" |
61 | #include "lldb/Target/ExecutionContext.h" |
62 | #include "lldb/Target/Language.h" |
63 | #include "lldb/Target/Process.h" |
64 | #include "lldb/Target/Target.h" |
65 | #include "lldb/Utility/ArchSpec.h" |
66 | #include "lldb/Utility/DataExtractor.h" |
67 | #include "lldb/Utility/Flags.h" |
68 | #include "lldb/Utility/LLDBAssert.h" |
69 | #include "lldb/Utility/LLDBLog.h" |
70 | #include "lldb/Utility/RegularExpression.h" |
71 | #include "lldb/Utility/Scalar.h" |
72 | |
73 | #include "Plugins/LanguageRuntime/ObjC/ObjCLanguageRuntime.h" |
74 | #include "Plugins/SymbolFile/DWARF/DWARFASTParserClang.h" |
75 | #include "Plugins/SymbolFile/PDB/PDBASTParser.h" |
76 | |
77 | #include <cstdio> |
78 | |
79 | #include <mutex> |
80 | |
81 | using namespace lldb; |
82 | using namespace lldb_private; |
83 | using namespace lldb_private::dwarf; |
84 | using namespace clang; |
85 | using llvm::StringSwitch; |
86 | |
87 | LLDB_PLUGIN_DEFINE(TypeSystemClang)namespace lldb_private { void lldb_initialize_TypeSystemClang () { TypeSystemClang::Initialize(); } void lldb_terminate_TypeSystemClang () { TypeSystemClang::Terminate(); } } |
88 | |
89 | namespace { |
90 | static 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 | |
99 | static inline bool |
100 | TypeSystemClangSupportsLanguage(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). |
118 | bool 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. |
146 | void 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()->castAs<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 | |
195 | static 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 | |
252 | static 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 | |
285 | static 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 | |
311 | typedef lldb_private::ThreadSafeDenseMap<clang::ASTContext *, TypeSystemClang *> |
312 | ClangASTMap; |
313 | |
314 | static 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 | |
323 | TypePayloadClang::TypePayloadClang(OptionalClangModuleID owning_module, |
324 | bool is_complete_objc_class) |
325 | : m_payload(owning_module.GetValue()) { |
326 | SetIsCompleteObjCClass(is_complete_objc_class); |
327 | } |
328 | |
329 | void 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 | |
336 | static 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 | |
357 | char TypeSystemClang::ID; |
358 | |
359 | bool 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 | |
439 | clang::AccessSpecifier |
440 | TypeSystemClang::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 | |
456 | static 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 | case clang::Language::HLSL: |
499 | LangStd = LangStandard::lang_hlsl; |
500 | break; |
501 | } |
502 | } |
503 | |
504 | const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd); |
505 | Opts.LineComment = Std.hasLineComments(); |
506 | Opts.C99 = Std.isC99(); |
507 | Opts.CPlusPlus = Std.isCPlusPlus(); |
508 | Opts.CPlusPlus11 = Std.isCPlusPlus11(); |
509 | Opts.Digraphs = Std.hasDigraphs(); |
510 | Opts.GNUMode = Std.isGNUMode(); |
511 | Opts.GNUInline = !Std.isC99(); |
512 | Opts.HexFloats = Std.hasHexFloats(); |
513 | Opts.ImplicitInt = Std.hasImplicitInt(); |
514 | |
515 | Opts.WChar = true; |
516 | |
517 | // OpenCL has some additional defaults. |
518 | if (LangStd == LangStandard::lang_opencl10) { |
519 | Opts.OpenCL = 1; |
520 | Opts.AltiVec = 1; |
521 | Opts.CXXOperatorNames = 1; |
522 | Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::All); |
523 | } |
524 | |
525 | // OpenCL and C++ both have bool, true, false keywords. |
526 | Opts.Bool = Opts.OpenCL || Opts.CPlusPlus; |
527 | |
528 | Opts.setValueVisibilityMode(DefaultVisibility); |
529 | |
530 | // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs is |
531 | // specified, or -std is set to a conforming mode. |
532 | Opts.Trigraphs = !Opts.GNUMode; |
533 | Opts.CharIsSigned = ArchSpec(triple).CharIsSignedByDefault(); |
534 | Opts.OptimizeSize = 0; |
535 | |
536 | // FIXME: Eliminate this dependency. |
537 | // unsigned Opt = |
538 | // Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags); |
539 | // Opts.Optimize = Opt != 0; |
540 | unsigned Opt = 0; |
541 | |
542 | // This is the __NO_INLINE__ define, which just depends on things like the |
543 | // optimization level and -fno-inline, not actually whether the backend has |
544 | // inlining enabled. |
545 | // |
546 | // FIXME: This is affected by other options (-fno-inline). |
547 | Opts.NoInlineDefine = !Opt; |
548 | |
549 | // This is needed to allocate the extra space for the owning module |
550 | // on each decl. |
551 | Opts.ModulesLocalVisibility = 1; |
552 | } |
553 | |
554 | TypeSystemClang::TypeSystemClang(llvm::StringRef name, |
555 | llvm::Triple target_triple) { |
556 | m_display_name = name.str(); |
557 | if (!target_triple.str().empty()) |
558 | SetTargetTriple(target_triple.str()); |
559 | // The caller didn't pass an ASTContext so create a new one for this |
560 | // TypeSystemClang. |
561 | CreateASTContext(); |
562 | } |
563 | |
564 | TypeSystemClang::TypeSystemClang(llvm::StringRef name, |
565 | ASTContext &existing_ctxt) { |
566 | m_display_name = name.str(); |
567 | SetTargetTriple(existing_ctxt.getTargetInfo().getTriple().str()); |
568 | |
569 | m_ast_up.reset(&existing_ctxt); |
570 | GetASTMap().Insert(&existing_ctxt, this); |
571 | } |
572 | |
573 | // Destructor |
574 | TypeSystemClang::~TypeSystemClang() { Finalize(); } |
575 | |
576 | lldb::TypeSystemSP TypeSystemClang::CreateInstance(lldb::LanguageType language, |
577 | lldb_private::Module *module, |
578 | Target *target) { |
579 | if (!TypeSystemClangSupportsLanguage(language)) |
580 | return lldb::TypeSystemSP(); |
581 | ArchSpec arch; |
582 | if (module) |
583 | arch = module->GetArchitecture(); |
584 | else if (target) |
585 | arch = target->GetArchitecture(); |
586 | |
587 | if (!arch.IsValid()) |
588 | return lldb::TypeSystemSP(); |
589 | |
590 | llvm::Triple triple = arch.GetTriple(); |
591 | // LLVM wants this to be set to iOS or MacOSX; if we're working on |
592 | // a bare-boards type image, change the triple for llvm's benefit. |
593 | if (triple.getVendor() == llvm::Triple::Apple && |
594 | triple.getOS() == llvm::Triple::UnknownOS) { |
595 | if (triple.getArch() == llvm::Triple::arm || |
596 | triple.getArch() == llvm::Triple::aarch64 || |
597 | triple.getArch() == llvm::Triple::aarch64_32 || |
598 | triple.getArch() == llvm::Triple::thumb) { |
599 | triple.setOS(llvm::Triple::IOS); |
600 | } else { |
601 | triple.setOS(llvm::Triple::MacOSX); |
602 | } |
603 | } |
604 | |
605 | if (module) { |
606 | std::string ast_name = |
607 | "ASTContext for '" + module->GetFileSpec().GetPath() + "'"; |
608 | return std::make_shared<TypeSystemClang>(ast_name, triple); |
609 | } else if (target && target->IsValid()) |
610 | return std::make_shared<ScratchTypeSystemClang>(*target, triple); |
611 | return lldb::TypeSystemSP(); |
612 | } |
613 | |
614 | LanguageSet TypeSystemClang::GetSupportedLanguagesForTypes() { |
615 | LanguageSet languages; |
616 | languages.Insert(lldb::eLanguageTypeC89); |
617 | languages.Insert(lldb::eLanguageTypeC); |
618 | languages.Insert(lldb::eLanguageTypeC11); |
619 | languages.Insert(lldb::eLanguageTypeC_plus_plus); |
620 | languages.Insert(lldb::eLanguageTypeC99); |
621 | languages.Insert(lldb::eLanguageTypeObjC); |
622 | languages.Insert(lldb::eLanguageTypeObjC_plus_plus); |
623 | languages.Insert(lldb::eLanguageTypeC_plus_plus_03); |
624 | languages.Insert(lldb::eLanguageTypeC_plus_plus_11); |
625 | languages.Insert(lldb::eLanguageTypeC11); |
626 | languages.Insert(lldb::eLanguageTypeC_plus_plus_14); |
627 | return languages; |
628 | } |
629 | |
630 | LanguageSet TypeSystemClang::GetSupportedLanguagesForExpressions() { |
631 | LanguageSet languages; |
632 | languages.Insert(lldb::eLanguageTypeC_plus_plus); |
633 | languages.Insert(lldb::eLanguageTypeObjC_plus_plus); |
634 | languages.Insert(lldb::eLanguageTypeC_plus_plus_03); |
635 | languages.Insert(lldb::eLanguageTypeC_plus_plus_11); |
636 | languages.Insert(lldb::eLanguageTypeC_plus_plus_14); |
637 | return languages; |
638 | } |
639 | |
640 | void TypeSystemClang::Initialize() { |
641 | PluginManager::RegisterPlugin( |
642 | GetPluginNameStatic(), "clang base AST context plug-in", CreateInstance, |
643 | GetSupportedLanguagesForTypes(), GetSupportedLanguagesForExpressions()); |
644 | } |
645 | |
646 | void TypeSystemClang::Terminate() { |
647 | PluginManager::UnregisterPlugin(CreateInstance); |
648 | } |
649 | |
650 | void TypeSystemClang::Finalize() { |
651 | assert(m_ast_up)(static_cast <bool> (m_ast_up) ? void (0) : __assert_fail ("m_ast_up", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 651, __extension__ __PRETTY_FUNCTION__)); |
652 | GetASTMap().Erase(m_ast_up.get()); |
653 | if (!m_ast_owned) |
654 | m_ast_up.release(); |
655 | |
656 | m_builtins_up.reset(); |
657 | m_selector_table_up.reset(); |
658 | m_identifier_table_up.reset(); |
659 | m_target_info_up.reset(); |
660 | m_target_options_rp.reset(); |
661 | m_diagnostics_engine_up.reset(); |
662 | m_source_manager_up.reset(); |
663 | m_language_options_up.reset(); |
664 | } |
665 | |
666 | void TypeSystemClang::setSema(Sema *s) { |
667 | // Ensure that the new sema actually belongs to our ASTContext. |
668 | 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", 668, __extension__ __PRETTY_FUNCTION__)); |
669 | m_sema = s; |
670 | } |
671 | |
672 | const char *TypeSystemClang::GetTargetTriple() { |
673 | return m_target_triple.c_str(); |
674 | } |
675 | |
676 | void TypeSystemClang::SetTargetTriple(llvm::StringRef target_triple) { |
677 | m_target_triple = target_triple.str(); |
678 | } |
679 | |
680 | void TypeSystemClang::SetExternalSource( |
681 | llvm::IntrusiveRefCntPtr<ExternalASTSource> &ast_source_up) { |
682 | ASTContext &ast = getASTContext(); |
683 | ast.getTranslationUnitDecl()->setHasExternalLexicalStorage(true); |
684 | ast.setExternalSource(ast_source_up); |
685 | } |
686 | |
687 | ASTContext &TypeSystemClang::getASTContext() { |
688 | assert(m_ast_up)(static_cast <bool> (m_ast_up) ? void (0) : __assert_fail ("m_ast_up", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 688, __extension__ __PRETTY_FUNCTION__)); |
689 | return *m_ast_up; |
690 | } |
691 | |
692 | class NullDiagnosticConsumer : public DiagnosticConsumer { |
693 | public: |
694 | NullDiagnosticConsumer() { m_log = GetLog(LLDBLog::Expressions); } |
695 | |
696 | void HandleDiagnostic(DiagnosticsEngine::Level DiagLevel, |
697 | const clang::Diagnostic &info) override { |
698 | if (m_log) { |
699 | llvm::SmallVector<char, 32> diag_str(10); |
700 | info.FormatDiagnostic(diag_str); |
701 | diag_str.push_back('\0'); |
702 | 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); |
703 | } |
704 | } |
705 | |
706 | DiagnosticConsumer *clone(DiagnosticsEngine &Diags) const { |
707 | return new NullDiagnosticConsumer(); |
708 | } |
709 | |
710 | private: |
711 | Log *m_log; |
712 | }; |
713 | |
714 | void TypeSystemClang::CreateASTContext() { |
715 | assert(!m_ast_up)(static_cast <bool> (!m_ast_up) ? void (0) : __assert_fail ("!m_ast_up", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 715, __extension__ __PRETTY_FUNCTION__)); |
716 | m_ast_owned = true; |
717 | |
718 | m_language_options_up = std::make_unique<LangOptions>(); |
719 | ParseLangArgs(*m_language_options_up, clang::Language::ObjCXX, |
720 | GetTargetTriple()); |
721 | |
722 | m_identifier_table_up = |
723 | std::make_unique<IdentifierTable>(*m_language_options_up, nullptr); |
724 | m_builtins_up = std::make_unique<Builtin::Context>(); |
725 | |
726 | m_selector_table_up = std::make_unique<SelectorTable>(); |
727 | |
728 | clang::FileSystemOptions file_system_options; |
729 | m_file_manager_up = std::make_unique<clang::FileManager>( |
730 | file_system_options, FileSystem::Instance().GetVirtualFileSystem()); |
731 | |
732 | llvm::IntrusiveRefCntPtr<DiagnosticIDs> diag_id_sp(new DiagnosticIDs()); |
733 | m_diagnostics_engine_up = |
734 | std::make_unique<DiagnosticsEngine>(diag_id_sp, new DiagnosticOptions()); |
735 | |
736 | m_source_manager_up = std::make_unique<clang::SourceManager>( |
737 | *m_diagnostics_engine_up, *m_file_manager_up); |
738 | m_ast_up = std::make_unique<ASTContext>( |
739 | *m_language_options_up, *m_source_manager_up, *m_identifier_table_up, |
740 | *m_selector_table_up, *m_builtins_up, TU_Complete); |
741 | |
742 | m_diagnostic_consumer_up = std::make_unique<NullDiagnosticConsumer>(); |
743 | m_ast_up->getDiagnostics().setClient(m_diagnostic_consumer_up.get(), false); |
744 | |
745 | // This can be NULL if we don't know anything about the architecture or if |
746 | // the target for an architecture isn't enabled in the llvm/clang that we |
747 | // built |
748 | TargetInfo *target_info = getTargetInfo(); |
749 | if (target_info) |
750 | m_ast_up->InitBuiltinTypes(*target_info); |
751 | |
752 | GetASTMap().Insert(m_ast_up.get(), this); |
753 | |
754 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> ast_source_up( |
755 | new ClangExternalASTSourceCallbacks(*this)); |
756 | SetExternalSource(ast_source_up); |
757 | } |
758 | |
759 | TypeSystemClang *TypeSystemClang::GetASTContext(clang::ASTContext *ast) { |
760 | TypeSystemClang *clang_ast = GetASTMap().Lookup(ast); |
761 | return clang_ast; |
762 | } |
763 | |
764 | clang::MangleContext *TypeSystemClang::getMangleContext() { |
765 | if (m_mangle_ctx_up == nullptr) |
766 | m_mangle_ctx_up.reset(getASTContext().createMangleContext()); |
767 | return m_mangle_ctx_up.get(); |
768 | } |
769 | |
770 | std::shared_ptr<clang::TargetOptions> &TypeSystemClang::getTargetOptions() { |
771 | if (m_target_options_rp == nullptr && !m_target_triple.empty()) { |
772 | m_target_options_rp = std::make_shared<clang::TargetOptions>(); |
773 | if (m_target_options_rp != nullptr) |
774 | m_target_options_rp->Triple = m_target_triple; |
775 | } |
776 | return m_target_options_rp; |
777 | } |
778 | |
779 | TargetInfo *TypeSystemClang::getTargetInfo() { |
780 | // target_triple should be something like "x86_64-apple-macosx" |
781 | if (m_target_info_up == nullptr && !m_target_triple.empty()) |
782 | m_target_info_up.reset(TargetInfo::CreateTargetInfo( |
783 | getASTContext().getDiagnostics(), getTargetOptions())); |
784 | return m_target_info_up.get(); |
785 | } |
786 | |
787 | #pragma mark Basic Types |
788 | |
789 | static inline bool QualTypeMatchesBitSize(const uint64_t bit_size, |
790 | ASTContext &ast, QualType qual_type) { |
791 | uint64_t qual_type_bit_size = ast.getTypeSize(qual_type); |
792 | return qual_type_bit_size == bit_size; |
793 | } |
794 | |
795 | CompilerType |
796 | TypeSystemClang::GetBuiltinTypeForEncodingAndBitSize(Encoding encoding, |
797 | size_t bit_size) { |
798 | ASTContext &ast = getASTContext(); |
799 | switch (encoding) { |
800 | case eEncodingInvalid: |
801 | if (QualTypeMatchesBitSize(bit_size, ast, ast.VoidPtrTy)) |
802 | return GetType(ast.VoidPtrTy); |
803 | break; |
804 | |
805 | case eEncodingUint: |
806 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) |
807 | return GetType(ast.UnsignedCharTy); |
808 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) |
809 | return GetType(ast.UnsignedShortTy); |
810 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) |
811 | return GetType(ast.UnsignedIntTy); |
812 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy)) |
813 | return GetType(ast.UnsignedLongTy); |
814 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy)) |
815 | return GetType(ast.UnsignedLongLongTy); |
816 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty)) |
817 | return GetType(ast.UnsignedInt128Ty); |
818 | break; |
819 | |
820 | case eEncodingSint: |
821 | if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy)) |
822 | return GetType(ast.SignedCharTy); |
823 | if (QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy)) |
824 | return GetType(ast.ShortTy); |
825 | if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy)) |
826 | return GetType(ast.IntTy); |
827 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongTy)) |
828 | return GetType(ast.LongTy); |
829 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy)) |
830 | return GetType(ast.LongLongTy); |
831 | if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty)) |
832 | return GetType(ast.Int128Ty); |
833 | break; |
834 | |
835 | case eEncodingIEEE754: |
836 | if (QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy)) |
837 | return GetType(ast.FloatTy); |
838 | if (QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy)) |
839 | return GetType(ast.DoubleTy); |
840 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy)) |
841 | return GetType(ast.LongDoubleTy); |
842 | if (QualTypeMatchesBitSize(bit_size, ast, ast.HalfTy)) |
843 | return GetType(ast.HalfTy); |
844 | break; |
845 | |
846 | case eEncodingVector: |
847 | // Sanity check that bit_size is a multiple of 8's. |
848 | if (bit_size && !(bit_size & 0x7u)) |
849 | return GetType(ast.getExtVectorType(ast.UnsignedCharTy, bit_size / 8)); |
850 | break; |
851 | } |
852 | |
853 | return CompilerType(); |
854 | } |
855 | |
856 | lldb::BasicType |
857 | TypeSystemClang::GetBasicTypeEnumeration(ConstString name) { |
858 | if (name) { |
859 | typedef UniqueCStringMap<lldb::BasicType> TypeNameToBasicTypeMap; |
860 | static TypeNameToBasicTypeMap g_type_map; |
861 | static llvm::once_flag g_once_flag; |
862 | llvm::call_once(g_once_flag, []() { |
863 | // "void" |
864 | g_type_map.Append(ConstString("void"), eBasicTypeVoid); |
865 | |
866 | // "char" |
867 | g_type_map.Append(ConstString("char"), eBasicTypeChar); |
868 | g_type_map.Append(ConstString("signed char"), eBasicTypeSignedChar); |
869 | g_type_map.Append(ConstString("unsigned char"), eBasicTypeUnsignedChar); |
870 | g_type_map.Append(ConstString("wchar_t"), eBasicTypeWChar); |
871 | g_type_map.Append(ConstString("signed wchar_t"), eBasicTypeSignedWChar); |
872 | g_type_map.Append(ConstString("unsigned wchar_t"), |
873 | eBasicTypeUnsignedWChar); |
874 | // "short" |
875 | g_type_map.Append(ConstString("short"), eBasicTypeShort); |
876 | g_type_map.Append(ConstString("short int"), eBasicTypeShort); |
877 | g_type_map.Append(ConstString("unsigned short"), eBasicTypeUnsignedShort); |
878 | g_type_map.Append(ConstString("unsigned short int"), |
879 | eBasicTypeUnsignedShort); |
880 | |
881 | // "int" |
882 | g_type_map.Append(ConstString("int"), eBasicTypeInt); |
883 | g_type_map.Append(ConstString("signed int"), eBasicTypeInt); |
884 | g_type_map.Append(ConstString("unsigned int"), eBasicTypeUnsignedInt); |
885 | g_type_map.Append(ConstString("unsigned"), eBasicTypeUnsignedInt); |
886 | |
887 | // "long" |
888 | g_type_map.Append(ConstString("long"), eBasicTypeLong); |
889 | g_type_map.Append(ConstString("long int"), eBasicTypeLong); |
890 | g_type_map.Append(ConstString("unsigned long"), eBasicTypeUnsignedLong); |
891 | g_type_map.Append(ConstString("unsigned long int"), |
892 | eBasicTypeUnsignedLong); |
893 | |
894 | // "long long" |
895 | g_type_map.Append(ConstString("long long"), eBasicTypeLongLong); |
896 | g_type_map.Append(ConstString("long long int"), eBasicTypeLongLong); |
897 | g_type_map.Append(ConstString("unsigned long long"), |
898 | eBasicTypeUnsignedLongLong); |
899 | g_type_map.Append(ConstString("unsigned long long int"), |
900 | eBasicTypeUnsignedLongLong); |
901 | |
902 | // "int128" |
903 | g_type_map.Append(ConstString("__int128_t"), eBasicTypeInt128); |
904 | g_type_map.Append(ConstString("__uint128_t"), eBasicTypeUnsignedInt128); |
905 | |
906 | // Miscellaneous |
907 | g_type_map.Append(ConstString("bool"), eBasicTypeBool); |
908 | g_type_map.Append(ConstString("float"), eBasicTypeFloat); |
909 | g_type_map.Append(ConstString("double"), eBasicTypeDouble); |
910 | g_type_map.Append(ConstString("long double"), eBasicTypeLongDouble); |
911 | g_type_map.Append(ConstString("id"), eBasicTypeObjCID); |
912 | g_type_map.Append(ConstString("SEL"), eBasicTypeObjCSel); |
913 | g_type_map.Append(ConstString("nullptr"), eBasicTypeNullPtr); |
914 | g_type_map.Sort(); |
915 | }); |
916 | |
917 | return g_type_map.Find(name, eBasicTypeInvalid); |
918 | } |
919 | return eBasicTypeInvalid; |
920 | } |
921 | |
922 | uint32_t TypeSystemClang::GetPointerByteSize() { |
923 | if (m_pointer_byte_size == 0) |
924 | if (auto size = GetBasicType(lldb::eBasicTypeVoid) |
925 | .GetPointerType() |
926 | .GetByteSize(nullptr)) |
927 | m_pointer_byte_size = *size; |
928 | return m_pointer_byte_size; |
929 | } |
930 | |
931 | CompilerType TypeSystemClang::GetBasicType(lldb::BasicType basic_type) { |
932 | clang::ASTContext &ast = getASTContext(); |
933 | |
934 | lldb::opaque_compiler_type_t clang_type = |
935 | GetOpaqueCompilerType(&ast, basic_type); |
936 | |
937 | if (clang_type) |
938 | return CompilerType(this, clang_type); |
939 | return CompilerType(); |
940 | } |
941 | |
942 | CompilerType TypeSystemClang::GetBuiltinTypeForDWARFEncodingAndBitSize( |
943 | llvm::StringRef type_name, uint32_t dw_ate, uint32_t bit_size) { |
944 | ASTContext &ast = getASTContext(); |
945 | |
946 | switch (dw_ate) { |
947 | default: |
948 | break; |
949 | |
950 | case DW_ATE_address: |
951 | if (QualTypeMatchesBitSize(bit_size, ast, ast.VoidPtrTy)) |
952 | return GetType(ast.VoidPtrTy); |
953 | break; |
954 | |
955 | case DW_ATE_boolean: |
956 | if (QualTypeMatchesBitSize(bit_size, ast, ast.BoolTy)) |
957 | return GetType(ast.BoolTy); |
958 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) |
959 | return GetType(ast.UnsignedCharTy); |
960 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) |
961 | return GetType(ast.UnsignedShortTy); |
962 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) |
963 | return GetType(ast.UnsignedIntTy); |
964 | break; |
965 | |
966 | case DW_ATE_lo_user: |
967 | // This has been seen to mean DW_AT_complex_integer |
968 | if (type_name.contains("complex")) { |
969 | CompilerType complex_int_clang_type = |
970 | GetBuiltinTypeForDWARFEncodingAndBitSize("int", DW_ATE_signed, |
971 | bit_size / 2); |
972 | return GetType( |
973 | ast.getComplexType(ClangUtil::GetQualType(complex_int_clang_type))); |
974 | } |
975 | break; |
976 | |
977 | case DW_ATE_complex_float: { |
978 | CanQualType FloatComplexTy = ast.getComplexType(ast.FloatTy); |
979 | if (QualTypeMatchesBitSize(bit_size, ast, FloatComplexTy)) |
980 | return GetType(FloatComplexTy); |
981 | |
982 | CanQualType DoubleComplexTy = ast.getComplexType(ast.DoubleTy); |
983 | if (QualTypeMatchesBitSize(bit_size, ast, DoubleComplexTy)) |
984 | return GetType(DoubleComplexTy); |
985 | |
986 | CanQualType LongDoubleComplexTy = ast.getComplexType(ast.LongDoubleTy); |
987 | if (QualTypeMatchesBitSize(bit_size, ast, LongDoubleComplexTy)) |
988 | return GetType(LongDoubleComplexTy); |
989 | |
990 | CompilerType complex_float_clang_type = |
991 | GetBuiltinTypeForDWARFEncodingAndBitSize("float", DW_ATE_float, |
992 | bit_size / 2); |
993 | return GetType( |
994 | ast.getComplexType(ClangUtil::GetQualType(complex_float_clang_type))); |
995 | } |
996 | |
997 | case DW_ATE_float: |
998 | if (type_name == "float" && |
999 | QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy)) |
1000 | return GetType(ast.FloatTy); |
1001 | if (type_name == "double" && |
1002 | QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy)) |
1003 | return GetType(ast.DoubleTy); |
1004 | if (type_name == "long double" && |
1005 | QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy)) |
1006 | return GetType(ast.LongDoubleTy); |
1007 | // Fall back to not requiring a name match |
1008 | if (QualTypeMatchesBitSize(bit_size, ast, ast.FloatTy)) |
1009 | return GetType(ast.FloatTy); |
1010 | if (QualTypeMatchesBitSize(bit_size, ast, ast.DoubleTy)) |
1011 | return GetType(ast.DoubleTy); |
1012 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongDoubleTy)) |
1013 | return GetType(ast.LongDoubleTy); |
1014 | if (QualTypeMatchesBitSize(bit_size, ast, ast.HalfTy)) |
1015 | return GetType(ast.HalfTy); |
1016 | break; |
1017 | |
1018 | case DW_ATE_signed: |
1019 | if (!type_name.empty()) { |
1020 | if (type_name == "wchar_t" && |
1021 | QualTypeMatchesBitSize(bit_size, ast, ast.WCharTy) && |
1022 | (getTargetInfo() && |
1023 | TargetInfo::isTypeSigned(getTargetInfo()->getWCharType()))) |
1024 | return GetType(ast.WCharTy); |
1025 | if (type_name == "void" && |
1026 | QualTypeMatchesBitSize(bit_size, ast, ast.VoidTy)) |
1027 | return GetType(ast.VoidTy); |
1028 | if (type_name.contains("long long") && |
1029 | QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy)) |
1030 | return GetType(ast.LongLongTy); |
1031 | if (type_name.contains("long") && |
1032 | QualTypeMatchesBitSize(bit_size, ast, ast.LongTy)) |
1033 | return GetType(ast.LongTy); |
1034 | if (type_name.contains("short") && |
1035 | QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy)) |
1036 | return GetType(ast.ShortTy); |
1037 | if (type_name.contains("char")) { |
1038 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) |
1039 | return GetType(ast.CharTy); |
1040 | if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy)) |
1041 | return GetType(ast.SignedCharTy); |
1042 | } |
1043 | if (type_name.contains("int")) { |
1044 | if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy)) |
1045 | return GetType(ast.IntTy); |
1046 | if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty)) |
1047 | return GetType(ast.Int128Ty); |
1048 | } |
1049 | } |
1050 | // We weren't able to match up a type name, just search by size |
1051 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) |
1052 | return GetType(ast.CharTy); |
1053 | if (QualTypeMatchesBitSize(bit_size, ast, ast.ShortTy)) |
1054 | return GetType(ast.ShortTy); |
1055 | if (QualTypeMatchesBitSize(bit_size, ast, ast.IntTy)) |
1056 | return GetType(ast.IntTy); |
1057 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongTy)) |
1058 | return GetType(ast.LongTy); |
1059 | if (QualTypeMatchesBitSize(bit_size, ast, ast.LongLongTy)) |
1060 | return GetType(ast.LongLongTy); |
1061 | if (QualTypeMatchesBitSize(bit_size, ast, ast.Int128Ty)) |
1062 | return GetType(ast.Int128Ty); |
1063 | break; |
1064 | |
1065 | case DW_ATE_signed_char: |
1066 | if (ast.getLangOpts().CharIsSigned && type_name == "char") { |
1067 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) |
1068 | return GetType(ast.CharTy); |
1069 | } |
1070 | if (QualTypeMatchesBitSize(bit_size, ast, ast.SignedCharTy)) |
1071 | return GetType(ast.SignedCharTy); |
1072 | break; |
1073 | |
1074 | case DW_ATE_unsigned: |
1075 | if (!type_name.empty()) { |
1076 | if (type_name == "wchar_t") { |
1077 | if (QualTypeMatchesBitSize(bit_size, ast, ast.WCharTy)) { |
1078 | if (!(getTargetInfo() && |
1079 | TargetInfo::isTypeSigned(getTargetInfo()->getWCharType()))) |
1080 | return GetType(ast.WCharTy); |
1081 | } |
1082 | } |
1083 | if (type_name.contains("long long")) { |
1084 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy)) |
1085 | return GetType(ast.UnsignedLongLongTy); |
1086 | } else if (type_name.contains("long")) { |
1087 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy)) |
1088 | return GetType(ast.UnsignedLongTy); |
1089 | } else if (type_name.contains("short")) { |
1090 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) |
1091 | return GetType(ast.UnsignedShortTy); |
1092 | } else if (type_name.contains("char")) { |
1093 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) |
1094 | return GetType(ast.UnsignedCharTy); |
1095 | } else if (type_name.contains("int")) { |
1096 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) |
1097 | return GetType(ast.UnsignedIntTy); |
1098 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty)) |
1099 | return GetType(ast.UnsignedInt128Ty); |
1100 | } |
1101 | } |
1102 | // We weren't able to match up a type name, just search by size |
1103 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) |
1104 | return GetType(ast.UnsignedCharTy); |
1105 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) |
1106 | return GetType(ast.UnsignedShortTy); |
1107 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedIntTy)) |
1108 | return GetType(ast.UnsignedIntTy); |
1109 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongTy)) |
1110 | return GetType(ast.UnsignedLongTy); |
1111 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedLongLongTy)) |
1112 | return GetType(ast.UnsignedLongLongTy); |
1113 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedInt128Ty)) |
1114 | return GetType(ast.UnsignedInt128Ty); |
1115 | break; |
1116 | |
1117 | case DW_ATE_unsigned_char: |
1118 | if (!ast.getLangOpts().CharIsSigned && type_name == "char") { |
1119 | if (QualTypeMatchesBitSize(bit_size, ast, ast.CharTy)) |
1120 | return GetType(ast.CharTy); |
1121 | } |
1122 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedCharTy)) |
1123 | return GetType(ast.UnsignedCharTy); |
1124 | if (QualTypeMatchesBitSize(bit_size, ast, ast.UnsignedShortTy)) |
1125 | return GetType(ast.UnsignedShortTy); |
1126 | break; |
1127 | |
1128 | case DW_ATE_imaginary_float: |
1129 | break; |
1130 | |
1131 | case DW_ATE_UTF: |
1132 | switch (bit_size) { |
1133 | case 8: |
1134 | return GetType(ast.Char8Ty); |
1135 | case 16: |
1136 | return GetType(ast.Char16Ty); |
1137 | case 32: |
1138 | return GetType(ast.Char32Ty); |
1139 | default: |
1140 | if (!type_name.empty()) { |
1141 | if (type_name == "char16_t") |
1142 | return GetType(ast.Char16Ty); |
1143 | if (type_name == "char32_t") |
1144 | return GetType(ast.Char32Ty); |
1145 | if (type_name == "char8_t") |
1146 | return GetType(ast.Char8Ty); |
1147 | } |
1148 | } |
1149 | break; |
1150 | } |
1151 | |
1152 | Log *log = GetLog(LLDBLog::Types); |
1153 | 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) |
1154 | "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) |
1155 | "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) |
1156 | 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); |
1157 | return CompilerType(); |
1158 | } |
1159 | |
1160 | CompilerType TypeSystemClang::GetCStringType(bool is_const) { |
1161 | ASTContext &ast = getASTContext(); |
1162 | QualType char_type(ast.CharTy); |
1163 | |
1164 | if (is_const) |
1165 | char_type.addConst(); |
1166 | |
1167 | return GetType(ast.getPointerType(char_type)); |
1168 | } |
1169 | |
1170 | bool TypeSystemClang::AreTypesSame(CompilerType type1, CompilerType type2, |
1171 | bool ignore_qualifiers) { |
1172 | TypeSystemClang *ast = |
1173 | llvm::dyn_cast_or_null<TypeSystemClang>(type1.GetTypeSystem()); |
1174 | if (!ast || ast != type2.GetTypeSystem()) |
1175 | return false; |
1176 | |
1177 | if (type1.GetOpaqueQualType() == type2.GetOpaqueQualType()) |
1178 | return true; |
1179 | |
1180 | QualType type1_qual = ClangUtil::GetQualType(type1); |
1181 | QualType type2_qual = ClangUtil::GetQualType(type2); |
1182 | |
1183 | if (ignore_qualifiers) { |
1184 | type1_qual = type1_qual.getUnqualifiedType(); |
1185 | type2_qual = type2_qual.getUnqualifiedType(); |
1186 | } |
1187 | |
1188 | return ast->getASTContext().hasSameType(type1_qual, type2_qual); |
1189 | } |
1190 | |
1191 | CompilerType TypeSystemClang::GetTypeForDecl(void *opaque_decl) { |
1192 | if (!opaque_decl) |
1193 | return CompilerType(); |
1194 | |
1195 | clang::Decl *decl = static_cast<clang::Decl *>(opaque_decl); |
1196 | if (auto *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl)) |
1197 | return GetTypeForDecl(named_decl); |
1198 | return CompilerType(); |
1199 | } |
1200 | |
1201 | CompilerDeclContext TypeSystemClang::CreateDeclContext(DeclContext *ctx) { |
1202 | // Check that the DeclContext actually belongs to this ASTContext. |
1203 | assert(&ctx->getParentASTContext() == &getASTContext())(static_cast <bool> (&ctx->getParentASTContext() == &getASTContext()) ? void (0) : __assert_fail ("&ctx->getParentASTContext() == &getASTContext()" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 1203, __extension__ __PRETTY_FUNCTION__)); |
1204 | return CompilerDeclContext(this, ctx); |
1205 | } |
1206 | |
1207 | CompilerType TypeSystemClang::GetTypeForDecl(clang::NamedDecl *decl) { |
1208 | if (clang::ObjCInterfaceDecl *interface_decl = |
1209 | llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) |
1210 | return GetTypeForDecl(interface_decl); |
1211 | if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) |
1212 | return GetTypeForDecl(tag_decl); |
1213 | return CompilerType(); |
1214 | } |
1215 | |
1216 | CompilerType TypeSystemClang::GetTypeForDecl(TagDecl *decl) { |
1217 | return GetType(getASTContext().getTagDeclType(decl)); |
1218 | } |
1219 | |
1220 | CompilerType TypeSystemClang::GetTypeForDecl(ObjCInterfaceDecl *decl) { |
1221 | return GetType(getASTContext().getObjCInterfaceType(decl)); |
1222 | } |
1223 | |
1224 | #pragma mark Structure, Unions, Classes |
1225 | |
1226 | void TypeSystemClang::SetOwningModule(clang::Decl *decl, |
1227 | OptionalClangModuleID owning_module) { |
1228 | if (!decl || !owning_module.HasValue()) |
1229 | return; |
1230 | |
1231 | decl->setFromASTFile(); |
1232 | decl->setOwningModuleID(owning_module.GetValue()); |
1233 | decl->setModuleOwnershipKind(clang::Decl::ModuleOwnershipKind::Visible); |
1234 | } |
1235 | |
1236 | OptionalClangModuleID |
1237 | TypeSystemClang::GetOrCreateClangModule(llvm::StringRef name, |
1238 | OptionalClangModuleID parent, |
1239 | bool is_framework, bool is_explicit) { |
1240 | // Get the external AST source which holds the modules. |
1241 | auto *ast_source = llvm::dyn_cast_or_null<ClangExternalASTSourceCallbacks>( |
1242 | getASTContext().getExternalSource()); |
1243 | 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", 1243, __extension__ __PRETTY_FUNCTION__)); |
1244 | if (!ast_source) |
1245 | return {}; |
1246 | |
1247 | // Lazily initialize the module map. |
1248 | if (!m_header_search_up) { |
1249 | auto HSOpts = std::make_shared<clang::HeaderSearchOptions>(); |
1250 | m_header_search_up = std::make_unique<clang::HeaderSearch>( |
1251 | HSOpts, *m_source_manager_up, *m_diagnostics_engine_up, |
1252 | *m_language_options_up, m_target_info_up.get()); |
1253 | m_module_map_up = std::make_unique<clang::ModuleMap>( |
1254 | *m_source_manager_up, *m_diagnostics_engine_up, *m_language_options_up, |
1255 | m_target_info_up.get(), *m_header_search_up); |
1256 | } |
1257 | |
1258 | // Get or create the module context. |
1259 | bool created; |
1260 | clang::Module *module; |
1261 | auto parent_desc = ast_source->getSourceDescriptor(parent.GetValue()); |
1262 | std::tie(module, created) = m_module_map_up->findOrCreateModule( |
1263 | name, parent_desc ? parent_desc->getModuleOrNull() : nullptr, |
1264 | is_framework, is_explicit); |
1265 | if (!created) |
1266 | return ast_source->GetIDForModule(module); |
1267 | |
1268 | return ast_source->RegisterModule(module); |
1269 | } |
1270 | |
1271 | CompilerType TypeSystemClang::CreateRecordType( |
1272 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
1273 | AccessType access_type, llvm::StringRef name, int kind, |
1274 | LanguageType language, ClangASTMetadata *metadata, bool exports_symbols) { |
1275 | ASTContext &ast = getASTContext(); |
1276 | |
1277 | if (decl_ctx == nullptr) |
1278 | decl_ctx = ast.getTranslationUnitDecl(); |
1279 | |
1280 | if (language == eLanguageTypeObjC || |
1281 | language == eLanguageTypeObjC_plus_plus) { |
1282 | bool isForwardDecl = true; |
1283 | bool isInternal = false; |
1284 | return CreateObjCClass(name, decl_ctx, owning_module, isForwardDecl, |
1285 | isInternal, metadata); |
1286 | } |
1287 | |
1288 | // NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and |
1289 | // we will need to update this code. I was told to currently always use the |
1290 | // CXXRecordDecl class since we often don't know from debug information if |
1291 | // something is struct or a class, so we default to always use the more |
1292 | // complete definition just in case. |
1293 | |
1294 | bool has_name = !name.empty(); |
1295 | CXXRecordDecl *decl = CXXRecordDecl::CreateDeserialized(ast, 0); |
1296 | decl->setTagKind(static_cast<TagDecl::TagKind>(kind)); |
1297 | decl->setDeclContext(decl_ctx); |
1298 | if (has_name) |
1299 | decl->setDeclName(&ast.Idents.get(name)); |
1300 | SetOwningModule(decl, owning_module); |
1301 | |
1302 | if (!has_name) { |
1303 | // In C++ a lambda is also represented as an unnamed class. This is |
1304 | // different from an *anonymous class* that the user wrote: |
1305 | // |
1306 | // struct A { |
1307 | // // anonymous class (GNU/MSVC extension) |
1308 | // struct { |
1309 | // int x; |
1310 | // }; |
1311 | // // unnamed class within a class |
1312 | // struct { |
1313 | // int y; |
1314 | // } B; |
1315 | // }; |
1316 | // |
1317 | // void f() { |
1318 | // // unammed class outside of a class |
1319 | // struct { |
1320 | // int z; |
1321 | // } C; |
1322 | // } |
1323 | // |
1324 | // Anonymous classes is a GNU/MSVC extension that clang supports. It |
1325 | // requires the anonymous class be embedded within a class. So the new |
1326 | // heuristic verifies this condition. |
1327 | if (isa<CXXRecordDecl>(decl_ctx) && exports_symbols) |
1328 | decl->setAnonymousStructOrUnion(true); |
1329 | } |
1330 | |
1331 | if (metadata) |
1332 | SetMetadata(decl, *metadata); |
1333 | |
1334 | if (access_type != eAccessNone) |
1335 | decl->setAccess(ConvertAccessTypeToAccessSpecifier(access_type)); |
1336 | |
1337 | if (decl_ctx) |
1338 | decl_ctx->addDecl(decl); |
1339 | |
1340 | return GetType(ast.getTagDeclType(decl)); |
1341 | } |
1342 | |
1343 | namespace { |
1344 | /// Returns true iff the given TemplateArgument should be represented as an |
1345 | /// NonTypeTemplateParmDecl in the AST. |
1346 | bool IsValueParam(const clang::TemplateArgument &argument) { |
1347 | return argument.getKind() == TemplateArgument::Integral; |
1348 | } |
1349 | |
1350 | void AddAccessSpecifierDecl(clang::CXXRecordDecl *cxx_record_decl, |
1351 | ASTContext &ct, |
1352 | clang::AccessSpecifier previous_access, |
1353 | clang::AccessSpecifier access_specifier) { |
1354 | if (!cxx_record_decl->isClass() && !cxx_record_decl->isStruct()) |
1355 | return; |
1356 | if (previous_access != access_specifier) { |
1357 | // For struct, don't add AS_public if it's the first AccessSpecDecl. |
1358 | // For class, don't add AS_private if it's the first AccessSpecDecl. |
1359 | if ((cxx_record_decl->isStruct() && |
1360 | previous_access == clang::AccessSpecifier::AS_none && |
1361 | access_specifier == clang::AccessSpecifier::AS_public) || |
1362 | (cxx_record_decl->isClass() && |
1363 | previous_access == clang::AccessSpecifier::AS_none && |
1364 | access_specifier == clang::AccessSpecifier::AS_private)) { |
1365 | return; |
1366 | } |
1367 | cxx_record_decl->addDecl( |
1368 | AccessSpecDecl::Create(ct, access_specifier, cxx_record_decl, |
1369 | SourceLocation(), SourceLocation())); |
1370 | } |
1371 | } |
1372 | } // namespace |
1373 | |
1374 | static TemplateParameterList *CreateTemplateParameterList( |
1375 | ASTContext &ast, |
1376 | const TypeSystemClang::TemplateParameterInfos &template_param_infos, |
1377 | llvm::SmallVector<NamedDecl *, 8> &template_param_decls) { |
1378 | const bool parameter_pack = false; |
1379 | const bool is_typename = false; |
1380 | const unsigned depth = 0; |
1381 | const size_t num_template_params = template_param_infos.args.size(); |
1382 | DeclContext *const decl_context = |
1383 | ast.getTranslationUnitDecl(); // Is this the right decl context?, |
1384 | for (size_t i = 0; i < num_template_params; ++i) { |
1385 | const char *name = template_param_infos.names[i]; |
1386 | |
1387 | IdentifierInfo *identifier_info = nullptr; |
1388 | if (name && name[0]) |
1389 | identifier_info = &ast.Idents.get(name); |
1390 | if (IsValueParam(template_param_infos.args[i])) { |
1391 | QualType template_param_type = |
1392 | template_param_infos.args[i].getIntegralType(); |
1393 | template_param_decls.push_back(NonTypeTemplateParmDecl::Create( |
1394 | ast, decl_context, SourceLocation(), SourceLocation(), depth, i, |
1395 | identifier_info, template_param_type, parameter_pack, |
1396 | ast.getTrivialTypeSourceInfo(template_param_type))); |
1397 | } else { |
1398 | template_param_decls.push_back(TemplateTypeParmDecl::Create( |
1399 | ast, decl_context, SourceLocation(), SourceLocation(), depth, i, |
1400 | identifier_info, is_typename, parameter_pack)); |
1401 | } |
1402 | } |
1403 | |
1404 | if (template_param_infos.packed_args) { |
1405 | IdentifierInfo *identifier_info = nullptr; |
1406 | if (template_param_infos.pack_name && template_param_infos.pack_name[0]) |
1407 | identifier_info = &ast.Idents.get(template_param_infos.pack_name); |
1408 | const bool parameter_pack_true = true; |
1409 | |
1410 | if (!template_param_infos.packed_args->args.empty() && |
1411 | IsValueParam(template_param_infos.packed_args->args[0])) { |
1412 | QualType template_param_type = |
1413 | template_param_infos.packed_args->args[0].getIntegralType(); |
1414 | template_param_decls.push_back(NonTypeTemplateParmDecl::Create( |
1415 | ast, decl_context, SourceLocation(), SourceLocation(), depth, |
1416 | num_template_params, identifier_info, template_param_type, |
1417 | parameter_pack_true, |
1418 | ast.getTrivialTypeSourceInfo(template_param_type))); |
1419 | } else { |
1420 | template_param_decls.push_back(TemplateTypeParmDecl::Create( |
1421 | ast, decl_context, SourceLocation(), SourceLocation(), depth, |
1422 | num_template_params, identifier_info, is_typename, |
1423 | parameter_pack_true)); |
1424 | } |
1425 | } |
1426 | clang::Expr *const requires_clause = nullptr; // TODO: Concepts |
1427 | TemplateParameterList *template_param_list = TemplateParameterList::Create( |
1428 | ast, SourceLocation(), SourceLocation(), template_param_decls, |
1429 | SourceLocation(), requires_clause); |
1430 | return template_param_list; |
1431 | } |
1432 | |
1433 | clang::FunctionTemplateDecl *TypeSystemClang::CreateFunctionTemplateDecl( |
1434 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
1435 | clang::FunctionDecl *func_decl, |
1436 | const TemplateParameterInfos &template_param_infos) { |
1437 | // /// Create a function template node. |
1438 | ASTContext &ast = getASTContext(); |
1439 | |
1440 | llvm::SmallVector<NamedDecl *, 8> template_param_decls; |
1441 | TemplateParameterList *template_param_list = CreateTemplateParameterList( |
1442 | ast, template_param_infos, template_param_decls); |
1443 | FunctionTemplateDecl *func_tmpl_decl = |
1444 | FunctionTemplateDecl::CreateDeserialized(ast, 0); |
1445 | func_tmpl_decl->setDeclContext(decl_ctx); |
1446 | func_tmpl_decl->setLocation(func_decl->getLocation()); |
1447 | func_tmpl_decl->setDeclName(func_decl->getDeclName()); |
1448 | func_tmpl_decl->init(func_decl, template_param_list); |
1449 | SetOwningModule(func_tmpl_decl, owning_module); |
1450 | |
1451 | for (size_t i = 0, template_param_decl_count = template_param_decls.size(); |
1452 | i < template_param_decl_count; ++i) { |
1453 | // TODO: verify which decl context we should put template_param_decls into.. |
1454 | template_param_decls[i]->setDeclContext(func_decl); |
1455 | } |
1456 | // Function templates inside a record need to have an access specifier. |
1457 | // It doesn't matter what access specifier we give the template as LLDB |
1458 | // anyway allows accessing everything inside a record. |
1459 | if (decl_ctx->isRecord()) |
1460 | func_tmpl_decl->setAccess(clang::AccessSpecifier::AS_public); |
1461 | |
1462 | return func_tmpl_decl; |
1463 | } |
1464 | |
1465 | void TypeSystemClang::CreateFunctionTemplateSpecializationInfo( |
1466 | FunctionDecl *func_decl, clang::FunctionTemplateDecl *func_tmpl_decl, |
1467 | const TemplateParameterInfos &infos) { |
1468 | TemplateArgumentList *template_args_ptr = |
1469 | TemplateArgumentList::CreateCopy(func_decl->getASTContext(), infos.args); |
1470 | |
1471 | func_decl->setFunctionTemplateSpecialization(func_tmpl_decl, |
1472 | template_args_ptr, nullptr); |
1473 | } |
1474 | |
1475 | /// Returns true if the given template parameter can represent the given value. |
1476 | /// For example, `typename T` can represent `int` but not integral values such |
1477 | /// as `int I = 3`. |
1478 | static bool TemplateParameterAllowsValue(NamedDecl *param, |
1479 | const TemplateArgument &value) { |
1480 | if (llvm::isa<TemplateTypeParmDecl>(param)) { |
1481 | // Compare the argument kind, i.e. ensure that <typename> != <int>. |
1482 | if (value.getKind() != TemplateArgument::Type) |
1483 | return false; |
1484 | } else if (auto *type_param = |
1485 | llvm::dyn_cast<NonTypeTemplateParmDecl>(param)) { |
1486 | // Compare the argument kind, i.e. ensure that <typename> != <int>. |
1487 | if (!IsValueParam(value)) |
1488 | return false; |
1489 | // Compare the integral type, i.e. ensure that <int> != <char>. |
1490 | if (type_param->getType() != value.getIntegralType()) |
1491 | return false; |
1492 | } else { |
1493 | // There is no way to create other parameter decls at the moment, so we |
1494 | // can't reach this case during normal LLDB usage. Log that this happened |
1495 | // and assert. |
1496 | Log *log = GetLog(LLDBLog::Expressions); |
1497 | 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) |
1498 | "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) |
1499 | " 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) |
1500 | 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); |
1501 | 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" , 1501); |
1502 | // In release builds just fall back to marking the parameter as not |
1503 | // accepting the value so that we don't try to fit an instantiation to a |
1504 | // template that doesn't fit. E.g., avoid that `S<1>` is being connected to |
1505 | // `template<typename T> struct S;`. |
1506 | return false; |
1507 | } |
1508 | return true; |
1509 | } |
1510 | |
1511 | /// Returns true if the given class template declaration could produce an |
1512 | /// instantiation with the specified values. |
1513 | /// For example, `<typename T>` allows the arguments `float`, but not for |
1514 | /// example `bool, float` or `3` (as an integer parameter value). |
1515 | static bool ClassTemplateAllowsToInstantiationArgs( |
1516 | ClassTemplateDecl *class_template_decl, |
1517 | const TypeSystemClang::TemplateParameterInfos &instantiation_values) { |
1518 | |
1519 | TemplateParameterList ¶ms = *class_template_decl->getTemplateParameters(); |
1520 | |
1521 | // Save some work by iterating only once over the found parameters and |
1522 | // calculate the information related to parameter packs. |
1523 | |
1524 | // Contains the first pack parameter (or non if there are none). |
1525 | llvm::Optional<NamedDecl *> pack_parameter; |
1526 | // Contains the number of non-pack parameters. |
1527 | size_t non_pack_params = params.size(); |
1528 | for (size_t i = 0; i < params.size(); ++i) { |
1529 | NamedDecl *param = params.getParam(i); |
1530 | if (param->isParameterPack()) { |
1531 | pack_parameter = param; |
1532 | non_pack_params = i; |
1533 | break; |
1534 | } |
1535 | } |
1536 | |
1537 | // The found template needs to have compatible non-pack template arguments. |
1538 | // E.g., ensure that <typename, typename> != <typename>. |
1539 | // The pack parameters are compared later. |
1540 | if (non_pack_params != instantiation_values.args.size()) |
1541 | return false; |
1542 | |
1543 | // Ensure that <typename...> != <typename>. |
1544 | if (pack_parameter.hasValue() != instantiation_values.hasParameterPack()) |
1545 | return false; |
1546 | |
1547 | // Compare the first pack parameter that was found with the first pack |
1548 | // parameter value. The special case of having an empty parameter pack value |
1549 | // always fits to a pack parameter. |
1550 | // E.g., ensure that <int...> != <typename...>. |
1551 | if (pack_parameter && !instantiation_values.packed_args->args.empty() && |
1552 | !TemplateParameterAllowsValue( |
1553 | *pack_parameter, instantiation_values.packed_args->args.front())) |
1554 | return false; |
1555 | |
1556 | // Compare all the non-pack parameters now. |
1557 | // E.g., ensure that <int> != <long>. |
1558 | for (const auto pair : llvm::zip_first(instantiation_values.args, params)) { |
1559 | const TemplateArgument &passed_arg = std::get<0>(pair); |
1560 | NamedDecl *found_param = std::get<1>(pair); |
1561 | if (!TemplateParameterAllowsValue(found_param, passed_arg)) |
1562 | return false; |
1563 | } |
1564 | |
1565 | return class_template_decl; |
1566 | } |
1567 | |
1568 | ClassTemplateDecl *TypeSystemClang::CreateClassTemplateDecl( |
1569 | DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
1570 | lldb::AccessType access_type, llvm::StringRef class_name, int kind, |
1571 | const TemplateParameterInfos &template_param_infos) { |
1572 | ASTContext &ast = getASTContext(); |
1573 | |
1574 | ClassTemplateDecl *class_template_decl = nullptr; |
1575 | if (decl_ctx == nullptr) |
1576 | decl_ctx = ast.getTranslationUnitDecl(); |
1577 | |
1578 | IdentifierInfo &identifier_info = ast.Idents.get(class_name); |
1579 | DeclarationName decl_name(&identifier_info); |
1580 | |
1581 | // Search the AST for an existing ClassTemplateDecl that could be reused. |
1582 | clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name); |
1583 | for (NamedDecl *decl : result) { |
1584 | class_template_decl = dyn_cast<clang::ClassTemplateDecl>(decl); |
1585 | if (!class_template_decl) |
1586 | continue; |
1587 | // The class template has to be able to represents the instantiation |
1588 | // values we received. Without this we might end up putting an instantiation |
1589 | // with arguments such as <int, int> to a template such as: |
1590 | // template<typename T> struct S; |
1591 | // Connecting the instantiation to an incompatible template could cause |
1592 | // problems later on. |
1593 | if (!ClassTemplateAllowsToInstantiationArgs(class_template_decl, |
1594 | template_param_infos)) |
1595 | continue; |
1596 | return class_template_decl; |
1597 | } |
1598 | |
1599 | llvm::SmallVector<NamedDecl *, 8> template_param_decls; |
1600 | |
1601 | TemplateParameterList *template_param_list = CreateTemplateParameterList( |
1602 | ast, template_param_infos, template_param_decls); |
1603 | |
1604 | CXXRecordDecl *template_cxx_decl = CXXRecordDecl::CreateDeserialized(ast, 0); |
1605 | template_cxx_decl->setTagKind(static_cast<TagDecl::TagKind>(kind)); |
1606 | // What decl context do we use here? TU? The actual decl context? |
1607 | template_cxx_decl->setDeclContext(decl_ctx); |
1608 | template_cxx_decl->setDeclName(decl_name); |
1609 | SetOwningModule(template_cxx_decl, owning_module); |
1610 | |
1611 | for (size_t i = 0, template_param_decl_count = template_param_decls.size(); |
1612 | i < template_param_decl_count; ++i) { |
1613 | template_param_decls[i]->setDeclContext(template_cxx_decl); |
1614 | } |
1615 | |
1616 | // With templated classes, we say that a class is templated with |
1617 | // specializations, but that the bare class has no functions. |
1618 | // template_cxx_decl->startDefinition(); |
1619 | // template_cxx_decl->completeDefinition(); |
1620 | |
1621 | class_template_decl = ClassTemplateDecl::CreateDeserialized(ast, 0); |
1622 | // What decl context do we use here? TU? The actual decl context? |
1623 | class_template_decl->setDeclContext(decl_ctx); |
1624 | class_template_decl->setDeclName(decl_name); |
1625 | class_template_decl->init(template_cxx_decl, template_param_list); |
1626 | template_cxx_decl->setDescribedClassTemplate(class_template_decl); |
1627 | SetOwningModule(class_template_decl, owning_module); |
1628 | |
1629 | if (access_type != eAccessNone) |
1630 | class_template_decl->setAccess( |
1631 | ConvertAccessTypeToAccessSpecifier(access_type)); |
1632 | |
1633 | decl_ctx->addDecl(class_template_decl); |
1634 | |
1635 | VerifyDecl(class_template_decl); |
1636 | |
1637 | return class_template_decl; |
1638 | } |
1639 | |
1640 | TemplateTemplateParmDecl * |
1641 | TypeSystemClang::CreateTemplateTemplateParmDecl(const char *template_name) { |
1642 | ASTContext &ast = getASTContext(); |
1643 | |
1644 | auto *decl_ctx = ast.getTranslationUnitDecl(); |
1645 | |
1646 | IdentifierInfo &identifier_info = ast.Idents.get(template_name); |
1647 | llvm::SmallVector<NamedDecl *, 8> template_param_decls; |
1648 | |
1649 | TypeSystemClang::TemplateParameterInfos template_param_infos; |
1650 | TemplateParameterList *template_param_list = CreateTemplateParameterList( |
1651 | ast, template_param_infos, template_param_decls); |
1652 | |
1653 | // LLDB needs to create those decls only to be able to display a |
1654 | // type that includes a template template argument. Only the name matters for |
1655 | // this purpose, so we use dummy values for the other characteristics of the |
1656 | // type. |
1657 | return TemplateTemplateParmDecl::Create( |
1658 | ast, decl_ctx, SourceLocation(), |
1659 | /*Depth*/ 0, /*Position*/ 0, |
1660 | /*IsParameterPack*/ false, &identifier_info, template_param_list); |
1661 | } |
1662 | |
1663 | ClassTemplateSpecializationDecl * |
1664 | TypeSystemClang::CreateClassTemplateSpecializationDecl( |
1665 | DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
1666 | ClassTemplateDecl *class_template_decl, int kind, |
1667 | const TemplateParameterInfos &template_param_infos) { |
1668 | ASTContext &ast = getASTContext(); |
1669 | llvm::SmallVector<clang::TemplateArgument, 2> args( |
1670 | template_param_infos.args.size() + |
1671 | (template_param_infos.packed_args ? 1 : 0)); |
1672 | std::copy(template_param_infos.args.begin(), template_param_infos.args.end(), |
1673 | args.begin()); |
1674 | if (template_param_infos.packed_args) { |
1675 | args[args.size() - 1] = TemplateArgument::CreatePackCopy( |
1676 | ast, template_param_infos.packed_args->args); |
1677 | } |
1678 | ClassTemplateSpecializationDecl *class_template_specialization_decl = |
1679 | ClassTemplateSpecializationDecl::CreateDeserialized(ast, 0); |
1680 | class_template_specialization_decl->setTagKind( |
1681 | static_cast<TagDecl::TagKind>(kind)); |
1682 | class_template_specialization_decl->setDeclContext(decl_ctx); |
1683 | class_template_specialization_decl->setInstantiationOf(class_template_decl); |
1684 | class_template_specialization_decl->setTemplateArgs( |
1685 | TemplateArgumentList::CreateCopy(ast, args)); |
1686 | ast.getTypeDeclType(class_template_specialization_decl, nullptr); |
1687 | class_template_specialization_decl->setDeclName( |
1688 | class_template_decl->getDeclName()); |
1689 | SetOwningModule(class_template_specialization_decl, owning_module); |
1690 | decl_ctx->addDecl(class_template_specialization_decl); |
1691 | |
1692 | class_template_specialization_decl->setSpecializationKind( |
1693 | TSK_ExplicitSpecialization); |
1694 | |
1695 | return class_template_specialization_decl; |
1696 | } |
1697 | |
1698 | CompilerType TypeSystemClang::CreateClassTemplateSpecializationType( |
1699 | ClassTemplateSpecializationDecl *class_template_specialization_decl) { |
1700 | if (class_template_specialization_decl) { |
1701 | ASTContext &ast = getASTContext(); |
1702 | return GetType(ast.getTagDeclType(class_template_specialization_decl)); |
1703 | } |
1704 | return CompilerType(); |
1705 | } |
1706 | |
1707 | static inline bool check_op_param(bool is_method, |
1708 | clang::OverloadedOperatorKind op_kind, |
1709 | bool unary, bool binary, |
1710 | uint32_t num_params) { |
1711 | // Special-case call since it can take any number of operands |
1712 | if (op_kind == OO_Call) |
1713 | return true; |
1714 | |
1715 | // The parameter count doesn't include "this" |
1716 | if (is_method) |
1717 | ++num_params; |
1718 | if (num_params == 1) |
1719 | return unary; |
1720 | if (num_params == 2) |
1721 | return binary; |
1722 | else |
1723 | return false; |
1724 | } |
1725 | |
1726 | bool TypeSystemClang::CheckOverloadedOperatorKindParameterCount( |
1727 | bool is_method, clang::OverloadedOperatorKind op_kind, |
1728 | uint32_t num_params) { |
1729 | switch (op_kind) { |
1730 | default: |
1731 | break; |
1732 | // C++ standard allows any number of arguments to new/delete |
1733 | case OO_New: |
1734 | case OO_Array_New: |
1735 | case OO_Delete: |
1736 | case OO_Array_Delete: |
1737 | return true; |
1738 | } |
1739 | |
1740 | #define OVERLOADED_OPERATOR(Name, Spelling, Token, Unary, Binary, MemberOnly) \ |
1741 | case OO_##Name: \ |
1742 | return check_op_param(is_method, op_kind, Unary, Binary, num_params); |
1743 | switch (op_kind) { |
1744 | #include "clang/Basic/OperatorKinds.def" |
1745 | default: |
1746 | break; |
1747 | } |
1748 | return false; |
1749 | } |
1750 | |
1751 | clang::AccessSpecifier |
1752 | TypeSystemClang::UnifyAccessSpecifiers(clang::AccessSpecifier lhs, |
1753 | clang::AccessSpecifier rhs) { |
1754 | // Make the access equal to the stricter of the field and the nested field's |
1755 | // access |
1756 | if (lhs == AS_none || rhs == AS_none) |
1757 | return AS_none; |
1758 | if (lhs == AS_private || rhs == AS_private) |
1759 | return AS_private; |
1760 | if (lhs == AS_protected || rhs == AS_protected) |
1761 | return AS_protected; |
1762 | return AS_public; |
1763 | } |
1764 | |
1765 | bool TypeSystemClang::FieldIsBitfield(FieldDecl *field, |
1766 | uint32_t &bitfield_bit_size) { |
1767 | ASTContext &ast = getASTContext(); |
1768 | if (field == nullptr) |
1769 | return false; |
1770 | |
1771 | if (field->isBitField()) { |
1772 | Expr *bit_width_expr = field->getBitWidth(); |
1773 | if (bit_width_expr) { |
1774 | if (Optional<llvm::APSInt> bit_width_apsint = |
1775 | bit_width_expr->getIntegerConstantExpr(ast)) { |
1776 | bitfield_bit_size = bit_width_apsint->getLimitedValue(UINT32_MAX(4294967295U)); |
1777 | return true; |
1778 | } |
1779 | } |
1780 | } |
1781 | return false; |
1782 | } |
1783 | |
1784 | bool TypeSystemClang::RecordHasFields(const RecordDecl *record_decl) { |
1785 | if (record_decl == nullptr) |
1786 | return false; |
1787 | |
1788 | if (!record_decl->field_empty()) |
1789 | return true; |
1790 | |
1791 | // No fields, lets check this is a CXX record and check the base classes |
1792 | const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl); |
1793 | if (cxx_record_decl) { |
1794 | CXXRecordDecl::base_class_const_iterator base_class, base_class_end; |
1795 | for (base_class = cxx_record_decl->bases_begin(), |
1796 | base_class_end = cxx_record_decl->bases_end(); |
1797 | base_class != base_class_end; ++base_class) { |
1798 | const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>( |
1799 | base_class->getType()->getAs<RecordType>()->getDecl()); |
1800 | if (RecordHasFields(base_class_decl)) |
1801 | return true; |
1802 | } |
1803 | } |
1804 | return false; |
1805 | } |
1806 | |
1807 | #pragma mark Objective-C Classes |
1808 | |
1809 | CompilerType TypeSystemClang::CreateObjCClass( |
1810 | llvm::StringRef name, clang::DeclContext *decl_ctx, |
1811 | OptionalClangModuleID owning_module, bool isForwardDecl, bool isInternal, |
1812 | ClangASTMetadata *metadata) { |
1813 | ASTContext &ast = getASTContext(); |
1814 | assert(!name.empty())(static_cast <bool> (!name.empty()) ? void (0) : __assert_fail ("!name.empty()", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 1814, __extension__ __PRETTY_FUNCTION__)); |
1815 | if (!decl_ctx) |
1816 | decl_ctx = ast.getTranslationUnitDecl(); |
1817 | |
1818 | ObjCInterfaceDecl *decl = ObjCInterfaceDecl::CreateDeserialized(ast, 0); |
1819 | decl->setDeclContext(decl_ctx); |
1820 | decl->setDeclName(&ast.Idents.get(name)); |
1821 | /*isForwardDecl,*/ |
1822 | decl->setImplicit(isInternal); |
1823 | SetOwningModule(decl, owning_module); |
1824 | |
1825 | if (metadata) |
1826 | SetMetadata(decl, *metadata); |
1827 | |
1828 | return GetType(ast.getObjCInterfaceType(decl)); |
1829 | } |
1830 | |
1831 | static inline bool BaseSpecifierIsEmpty(const CXXBaseSpecifier *b) { |
1832 | return !TypeSystemClang::RecordHasFields(b->getType()->getAsCXXRecordDecl()); |
1833 | } |
1834 | |
1835 | uint32_t |
1836 | TypeSystemClang::GetNumBaseClasses(const CXXRecordDecl *cxx_record_decl, |
1837 | bool omit_empty_base_classes) { |
1838 | uint32_t num_bases = 0; |
1839 | if (cxx_record_decl) { |
1840 | if (omit_empty_base_classes) { |
1841 | CXXRecordDecl::base_class_const_iterator base_class, base_class_end; |
1842 | for (base_class = cxx_record_decl->bases_begin(), |
1843 | base_class_end = cxx_record_decl->bases_end(); |
1844 | base_class != base_class_end; ++base_class) { |
1845 | // Skip empty base classes |
1846 | if (BaseSpecifierIsEmpty(base_class)) |
1847 | continue; |
1848 | ++num_bases; |
1849 | } |
1850 | } else |
1851 | num_bases = cxx_record_decl->getNumBases(); |
1852 | } |
1853 | return num_bases; |
1854 | } |
1855 | |
1856 | #pragma mark Namespace Declarations |
1857 | |
1858 | NamespaceDecl *TypeSystemClang::GetUniqueNamespaceDeclaration( |
1859 | const char *name, clang::DeclContext *decl_ctx, |
1860 | OptionalClangModuleID owning_module, bool is_inline) { |
1861 | NamespaceDecl *namespace_decl = nullptr; |
1862 | ASTContext &ast = getASTContext(); |
1863 | TranslationUnitDecl *translation_unit_decl = ast.getTranslationUnitDecl(); |
1864 | if (!decl_ctx) |
1865 | decl_ctx = translation_unit_decl; |
1866 | |
1867 | if (name) { |
1868 | IdentifierInfo &identifier_info = ast.Idents.get(name); |
1869 | DeclarationName decl_name(&identifier_info); |
1870 | clang::DeclContext::lookup_result result = decl_ctx->lookup(decl_name); |
1871 | for (NamedDecl *decl : result) { |
1872 | namespace_decl = dyn_cast<clang::NamespaceDecl>(decl); |
1873 | if (namespace_decl) |
1874 | return namespace_decl; |
1875 | } |
1876 | |
1877 | namespace_decl = |
1878 | NamespaceDecl::Create(ast, decl_ctx, is_inline, SourceLocation(), |
1879 | SourceLocation(), &identifier_info, nullptr); |
1880 | |
1881 | decl_ctx->addDecl(namespace_decl); |
1882 | } else { |
1883 | if (decl_ctx == translation_unit_decl) { |
1884 | namespace_decl = translation_unit_decl->getAnonymousNamespace(); |
1885 | if (namespace_decl) |
1886 | return namespace_decl; |
1887 | |
1888 | namespace_decl = |
1889 | NamespaceDecl::Create(ast, decl_ctx, false, SourceLocation(), |
1890 | SourceLocation(), nullptr, nullptr); |
1891 | translation_unit_decl->setAnonymousNamespace(namespace_decl); |
1892 | translation_unit_decl->addDecl(namespace_decl); |
1893 | 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", 1893, __extension__ __PRETTY_FUNCTION__)); |
1894 | } else { |
1895 | NamespaceDecl *parent_namespace_decl = cast<NamespaceDecl>(decl_ctx); |
1896 | if (parent_namespace_decl) { |
1897 | namespace_decl = parent_namespace_decl->getAnonymousNamespace(); |
1898 | if (namespace_decl) |
1899 | return namespace_decl; |
1900 | namespace_decl = |
1901 | NamespaceDecl::Create(ast, decl_ctx, false, SourceLocation(), |
1902 | SourceLocation(), nullptr, nullptr); |
1903 | parent_namespace_decl->setAnonymousNamespace(namespace_decl); |
1904 | parent_namespace_decl->addDecl(namespace_decl); |
1905 | 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", 1906, __extension__ __PRETTY_FUNCTION__)) |
1906 | 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", 1906, __extension__ __PRETTY_FUNCTION__)); |
1907 | } else { |
1908 | 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", 1909, __extension__ __PRETTY_FUNCTION__)) |
1909 | "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", 1909, __extension__ __PRETTY_FUNCTION__)); |
1910 | } |
1911 | } |
1912 | } |
1913 | // Note: namespaces can span multiple modules, so perhaps this isn't a good |
1914 | // idea. |
1915 | SetOwningModule(namespace_decl, owning_module); |
1916 | |
1917 | VerifyDecl(namespace_decl); |
1918 | return namespace_decl; |
1919 | } |
1920 | |
1921 | clang::BlockDecl * |
1922 | TypeSystemClang::CreateBlockDeclaration(clang::DeclContext *ctx, |
1923 | OptionalClangModuleID owning_module) { |
1924 | if (ctx) { |
1925 | clang::BlockDecl *decl = |
1926 | clang::BlockDecl::CreateDeserialized(getASTContext(), 0); |
1927 | decl->setDeclContext(ctx); |
1928 | ctx->addDecl(decl); |
1929 | SetOwningModule(decl, owning_module); |
1930 | return decl; |
1931 | } |
1932 | return nullptr; |
1933 | } |
1934 | |
1935 | clang::DeclContext *FindLCABetweenDecls(clang::DeclContext *left, |
1936 | clang::DeclContext *right, |
1937 | clang::DeclContext *root) { |
1938 | if (root == nullptr) |
1939 | return nullptr; |
1940 | |
1941 | std::set<clang::DeclContext *> path_left; |
1942 | for (clang::DeclContext *d = left; d != nullptr; d = d->getParent()) |
1943 | path_left.insert(d); |
1944 | |
1945 | for (clang::DeclContext *d = right; d != nullptr; d = d->getParent()) |
1946 | if (path_left.find(d) != path_left.end()) |
1947 | return d; |
1948 | |
1949 | return nullptr; |
1950 | } |
1951 | |
1952 | clang::UsingDirectiveDecl *TypeSystemClang::CreateUsingDirectiveDeclaration( |
1953 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
1954 | clang::NamespaceDecl *ns_decl) { |
1955 | if (decl_ctx && ns_decl) { |
1956 | auto *translation_unit = getASTContext().getTranslationUnitDecl(); |
1957 | clang::UsingDirectiveDecl *using_decl = clang::UsingDirectiveDecl::Create( |
1958 | getASTContext(), decl_ctx, clang::SourceLocation(), |
1959 | clang::SourceLocation(), clang::NestedNameSpecifierLoc(), |
1960 | clang::SourceLocation(), ns_decl, |
1961 | FindLCABetweenDecls(decl_ctx, ns_decl, |
1962 | translation_unit)); |
1963 | decl_ctx->addDecl(using_decl); |
1964 | SetOwningModule(using_decl, owning_module); |
1965 | return using_decl; |
1966 | } |
1967 | return nullptr; |
1968 | } |
1969 | |
1970 | clang::UsingDecl * |
1971 | TypeSystemClang::CreateUsingDeclaration(clang::DeclContext *current_decl_ctx, |
1972 | OptionalClangModuleID owning_module, |
1973 | clang::NamedDecl *target) { |
1974 | if (current_decl_ctx && target) { |
1975 | clang::UsingDecl *using_decl = clang::UsingDecl::Create( |
1976 | getASTContext(), current_decl_ctx, clang::SourceLocation(), |
1977 | clang::NestedNameSpecifierLoc(), clang::DeclarationNameInfo(), false); |
1978 | SetOwningModule(using_decl, owning_module); |
1979 | clang::UsingShadowDecl *shadow_decl = clang::UsingShadowDecl::Create( |
1980 | getASTContext(), current_decl_ctx, clang::SourceLocation(), |
1981 | target->getDeclName(), using_decl, target); |
1982 | SetOwningModule(shadow_decl, owning_module); |
1983 | using_decl->addShadowDecl(shadow_decl); |
1984 | current_decl_ctx->addDecl(using_decl); |
1985 | return using_decl; |
1986 | } |
1987 | return nullptr; |
1988 | } |
1989 | |
1990 | clang::VarDecl *TypeSystemClang::CreateVariableDeclaration( |
1991 | clang::DeclContext *decl_context, OptionalClangModuleID owning_module, |
1992 | const char *name, clang::QualType type) { |
1993 | if (decl_context) { |
1994 | clang::VarDecl *var_decl = |
1995 | clang::VarDecl::CreateDeserialized(getASTContext(), 0); |
1996 | var_decl->setDeclContext(decl_context); |
1997 | if (name && name[0]) |
1998 | var_decl->setDeclName(&getASTContext().Idents.getOwn(name)); |
1999 | var_decl->setType(type); |
2000 | SetOwningModule(var_decl, owning_module); |
2001 | var_decl->setAccess(clang::AS_public); |
2002 | decl_context->addDecl(var_decl); |
2003 | return var_decl; |
2004 | } |
2005 | return nullptr; |
2006 | } |
2007 | |
2008 | lldb::opaque_compiler_type_t |
2009 | TypeSystemClang::GetOpaqueCompilerType(clang::ASTContext *ast, |
2010 | lldb::BasicType basic_type) { |
2011 | switch (basic_type) { |
2012 | case eBasicTypeVoid: |
2013 | return ast->VoidTy.getAsOpaquePtr(); |
2014 | case eBasicTypeChar: |
2015 | return ast->CharTy.getAsOpaquePtr(); |
2016 | case eBasicTypeSignedChar: |
2017 | return ast->SignedCharTy.getAsOpaquePtr(); |
2018 | case eBasicTypeUnsignedChar: |
2019 | return ast->UnsignedCharTy.getAsOpaquePtr(); |
2020 | case eBasicTypeWChar: |
2021 | return ast->getWCharType().getAsOpaquePtr(); |
2022 | case eBasicTypeSignedWChar: |
2023 | return ast->getSignedWCharType().getAsOpaquePtr(); |
2024 | case eBasicTypeUnsignedWChar: |
2025 | return ast->getUnsignedWCharType().getAsOpaquePtr(); |
2026 | case eBasicTypeChar8: |
2027 | return ast->Char8Ty.getAsOpaquePtr(); |
2028 | case eBasicTypeChar16: |
2029 | return ast->Char16Ty.getAsOpaquePtr(); |
2030 | case eBasicTypeChar32: |
2031 | return ast->Char32Ty.getAsOpaquePtr(); |
2032 | case eBasicTypeShort: |
2033 | return ast->ShortTy.getAsOpaquePtr(); |
2034 | case eBasicTypeUnsignedShort: |
2035 | return ast->UnsignedShortTy.getAsOpaquePtr(); |
2036 | case eBasicTypeInt: |
2037 | return ast->IntTy.getAsOpaquePtr(); |
2038 | case eBasicTypeUnsignedInt: |
2039 | return ast->UnsignedIntTy.getAsOpaquePtr(); |
2040 | case eBasicTypeLong: |
2041 | return ast->LongTy.getAsOpaquePtr(); |
2042 | case eBasicTypeUnsignedLong: |
2043 | return ast->UnsignedLongTy.getAsOpaquePtr(); |
2044 | case eBasicTypeLongLong: |
2045 | return ast->LongLongTy.getAsOpaquePtr(); |
2046 | case eBasicTypeUnsignedLongLong: |
2047 | return ast->UnsignedLongLongTy.getAsOpaquePtr(); |
2048 | case eBasicTypeInt128: |
2049 | return ast->Int128Ty.getAsOpaquePtr(); |
2050 | case eBasicTypeUnsignedInt128: |
2051 | return ast->UnsignedInt128Ty.getAsOpaquePtr(); |
2052 | case eBasicTypeBool: |
2053 | return ast->BoolTy.getAsOpaquePtr(); |
2054 | case eBasicTypeHalf: |
2055 | return ast->HalfTy.getAsOpaquePtr(); |
2056 | case eBasicTypeFloat: |
2057 | return ast->FloatTy.getAsOpaquePtr(); |
2058 | case eBasicTypeDouble: |
2059 | return ast->DoubleTy.getAsOpaquePtr(); |
2060 | case eBasicTypeLongDouble: |
2061 | return ast->LongDoubleTy.getAsOpaquePtr(); |
2062 | case eBasicTypeFloatComplex: |
2063 | return ast->getComplexType(ast->FloatTy).getAsOpaquePtr(); |
2064 | case eBasicTypeDoubleComplex: |
2065 | return ast->getComplexType(ast->DoubleTy).getAsOpaquePtr(); |
2066 | case eBasicTypeLongDoubleComplex: |
2067 | return ast->getComplexType(ast->LongDoubleTy).getAsOpaquePtr(); |
2068 | case eBasicTypeObjCID: |
2069 | return ast->getObjCIdType().getAsOpaquePtr(); |
2070 | case eBasicTypeObjCClass: |
2071 | return ast->getObjCClassType().getAsOpaquePtr(); |
2072 | case eBasicTypeObjCSel: |
2073 | return ast->getObjCSelType().getAsOpaquePtr(); |
2074 | case eBasicTypeNullPtr: |
2075 | return ast->NullPtrTy.getAsOpaquePtr(); |
2076 | default: |
2077 | return nullptr; |
2078 | } |
2079 | } |
2080 | |
2081 | #pragma mark Function Types |
2082 | |
2083 | clang::DeclarationName |
2084 | TypeSystemClang::GetDeclarationName(llvm::StringRef name, |
2085 | const CompilerType &function_clang_type) { |
2086 | clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS; |
2087 | if (!IsOperator(name, op_kind) || op_kind == clang::NUM_OVERLOADED_OPERATORS) |
2088 | return DeclarationName(&getASTContext().Idents.get( |
2089 | name)); // Not operator, but a regular function. |
2090 | |
2091 | // Check the number of operator parameters. Sometimes we have seen bad DWARF |
2092 | // that doesn't correctly describe operators and if we try to create a method |
2093 | // and add it to the class, clang will assert and crash, so we need to make |
2094 | // sure things are acceptable. |
2095 | clang::QualType method_qual_type(ClangUtil::GetQualType(function_clang_type)); |
2096 | const clang::FunctionProtoType *function_type = |
2097 | llvm::dyn_cast<clang::FunctionProtoType>(method_qual_type.getTypePtr()); |
2098 | if (function_type == nullptr) |
2099 | return clang::DeclarationName(); |
2100 | |
2101 | const bool is_method = false; |
2102 | const unsigned int num_params = function_type->getNumParams(); |
2103 | if (!TypeSystemClang::CheckOverloadedOperatorKindParameterCount( |
2104 | is_method, op_kind, num_params)) |
2105 | return clang::DeclarationName(); |
2106 | |
2107 | return getASTContext().DeclarationNames.getCXXOperatorName(op_kind); |
2108 | } |
2109 | |
2110 | PrintingPolicy TypeSystemClang::GetTypePrintingPolicy() { |
2111 | clang::PrintingPolicy printing_policy(getASTContext().getPrintingPolicy()); |
2112 | printing_policy.SuppressTagKeyword = true; |
2113 | // Inline namespaces are important for some type formatters (e.g., libc++ |
2114 | // and libstdc++ are differentiated by their inline namespaces). |
2115 | printing_policy.SuppressInlineNamespace = false; |
2116 | printing_policy.SuppressUnwrittenScope = false; |
2117 | // Default arguments are also always important for type formatters. Otherwise |
2118 | // we would need to always specify two type names for the setups where we do |
2119 | // know the default arguments and where we don't know default arguments. |
2120 | // |
2121 | // For example, without this we would need to have formatters for both: |
2122 | // std::basic_string<char> |
2123 | // and |
2124 | // std::basic_string<char, std::char_traits<char>, std::allocator<char> > |
2125 | // to support setups where LLDB was able to reconstruct default arguments |
2126 | // (and we then would have suppressed them from the type name) and also setups |
2127 | // where LLDB wasn't able to reconstruct the default arguments. |
2128 | printing_policy.SuppressDefaultTemplateArgs = false; |
2129 | return printing_policy; |
2130 | } |
2131 | |
2132 | std::string TypeSystemClang::GetTypeNameForDecl(const NamedDecl *named_decl) { |
2133 | clang::PrintingPolicy printing_policy = GetTypePrintingPolicy(); |
2134 | std::string result; |
2135 | llvm::raw_string_ostream os(result); |
2136 | named_decl->printQualifiedName(os, printing_policy); |
2137 | return result; |
2138 | } |
2139 | |
2140 | FunctionDecl *TypeSystemClang::CreateFunctionDeclaration( |
2141 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
2142 | llvm::StringRef name, const CompilerType &function_clang_type, |
2143 | clang::StorageClass storage, bool is_inline) { |
2144 | FunctionDecl *func_decl = nullptr; |
2145 | ASTContext &ast = getASTContext(); |
2146 | if (!decl_ctx) |
2147 | decl_ctx = ast.getTranslationUnitDecl(); |
2148 | |
2149 | const bool hasWrittenPrototype = true; |
2150 | const bool isConstexprSpecified = false; |
2151 | |
2152 | clang::DeclarationName declarationName = |
2153 | GetDeclarationName(name, function_clang_type); |
2154 | func_decl = FunctionDecl::CreateDeserialized(ast, 0); |
2155 | func_decl->setDeclContext(decl_ctx); |
2156 | func_decl->setDeclName(declarationName); |
2157 | func_decl->setType(ClangUtil::GetQualType(function_clang_type)); |
2158 | func_decl->setStorageClass(storage); |
2159 | func_decl->setInlineSpecified(is_inline); |
2160 | func_decl->setHasWrittenPrototype(hasWrittenPrototype); |
2161 | func_decl->setConstexprKind(isConstexprSpecified |
2162 | ? ConstexprSpecKind::Constexpr |
2163 | : ConstexprSpecKind::Unspecified); |
2164 | SetOwningModule(func_decl, owning_module); |
2165 | decl_ctx->addDecl(func_decl); |
2166 | |
2167 | VerifyDecl(func_decl); |
2168 | |
2169 | return func_decl; |
2170 | } |
2171 | |
2172 | CompilerType |
2173 | TypeSystemClang::CreateFunctionType(const CompilerType &result_type, |
2174 | const CompilerType *args, unsigned num_args, |
2175 | bool is_variadic, unsigned type_quals, |
2176 | clang::CallingConv cc) { |
2177 | if (!result_type || !ClangUtil::IsClangType(result_type)) |
2178 | return CompilerType(); // invalid return type |
2179 | |
2180 | std::vector<QualType> qual_type_args; |
2181 | if (num_args > 0 && args == nullptr) |
2182 | return CompilerType(); // invalid argument array passed in |
2183 | |
2184 | // Verify that all arguments are valid and the right type |
2185 | for (unsigned i = 0; i < num_args; ++i) { |
2186 | if (args[i]) { |
2187 | // Make sure we have a clang type in args[i] and not a type from another |
2188 | // language whose name might match |
2189 | const bool is_clang_type = ClangUtil::IsClangType(args[i]); |
2190 | 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" , 2190); |
2191 | if (is_clang_type) |
2192 | qual_type_args.push_back(ClangUtil::GetQualType(args[i])); |
2193 | else |
2194 | return CompilerType(); // invalid argument type (must be a clang type) |
2195 | } else |
2196 | return CompilerType(); // invalid argument type (empty) |
2197 | } |
2198 | |
2199 | // TODO: Detect calling convention in DWARF? |
2200 | FunctionProtoType::ExtProtoInfo proto_info; |
2201 | proto_info.ExtInfo = cc; |
2202 | proto_info.Variadic = is_variadic; |
2203 | proto_info.ExceptionSpec = EST_None; |
2204 | proto_info.TypeQuals = clang::Qualifiers::fromFastMask(type_quals); |
2205 | proto_info.RefQualifier = RQ_None; |
2206 | |
2207 | return GetType(getASTContext().getFunctionType( |
2208 | ClangUtil::GetQualType(result_type), qual_type_args, proto_info)); |
2209 | } |
2210 | |
2211 | ParmVarDecl *TypeSystemClang::CreateParameterDeclaration( |
2212 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
2213 | const char *name, const CompilerType ¶m_type, int storage, |
2214 | bool add_decl) { |
2215 | ASTContext &ast = getASTContext(); |
2216 | auto *decl = ParmVarDecl::CreateDeserialized(ast, 0); |
2217 | decl->setDeclContext(decl_ctx); |
2218 | if (name && name[0]) |
2219 | decl->setDeclName(&ast.Idents.get(name)); |
2220 | decl->setType(ClangUtil::GetQualType(param_type)); |
2221 | decl->setStorageClass(static_cast<clang::StorageClass>(storage)); |
2222 | SetOwningModule(decl, owning_module); |
2223 | if (add_decl) |
2224 | decl_ctx->addDecl(decl); |
2225 | |
2226 | return decl; |
2227 | } |
2228 | |
2229 | void TypeSystemClang::SetFunctionParameters( |
2230 | FunctionDecl *function_decl, llvm::ArrayRef<ParmVarDecl *> params) { |
2231 | if (function_decl) |
2232 | function_decl->setParams(params); |
2233 | } |
2234 | |
2235 | CompilerType |
2236 | TypeSystemClang::CreateBlockPointerType(const CompilerType &function_type) { |
2237 | QualType block_type = m_ast_up->getBlockPointerType( |
2238 | clang::QualType::getFromOpaquePtr(function_type.GetOpaqueQualType())); |
2239 | |
2240 | return GetType(block_type); |
2241 | } |
2242 | |
2243 | #pragma mark Array Types |
2244 | |
2245 | CompilerType TypeSystemClang::CreateArrayType(const CompilerType &element_type, |
2246 | size_t element_count, |
2247 | bool is_vector) { |
2248 | if (element_type.IsValid()) { |
2249 | ASTContext &ast = getASTContext(); |
2250 | |
2251 | if (is_vector) { |
2252 | return GetType(ast.getExtVectorType(ClangUtil::GetQualType(element_type), |
2253 | element_count)); |
2254 | } else { |
2255 | |
2256 | llvm::APInt ap_element_count(64, element_count); |
2257 | if (element_count == 0) { |
2258 | return GetType(ast.getIncompleteArrayType( |
2259 | ClangUtil::GetQualType(element_type), clang::ArrayType::Normal, 0)); |
2260 | } else { |
2261 | return GetType(ast.getConstantArrayType( |
2262 | ClangUtil::GetQualType(element_type), ap_element_count, nullptr, |
2263 | clang::ArrayType::Normal, 0)); |
2264 | } |
2265 | } |
2266 | } |
2267 | return CompilerType(); |
2268 | } |
2269 | |
2270 | CompilerType TypeSystemClang::CreateStructForIdentifier( |
2271 | ConstString type_name, |
2272 | const std::initializer_list<std::pair<const char *, CompilerType>> |
2273 | &type_fields, |
2274 | bool packed) { |
2275 | CompilerType type; |
2276 | if (!type_name.IsEmpty() && |
2277 | (type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)) |
2278 | .IsValid()) { |
2279 | 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" , 2279); |
2280 | return type; |
2281 | } |
2282 | |
2283 | type = CreateRecordType(nullptr, OptionalClangModuleID(), lldb::eAccessPublic, |
2284 | type_name.GetCString(), clang::TTK_Struct, |
2285 | lldb::eLanguageTypeC); |
2286 | StartTagDeclarationDefinition(type); |
2287 | for (const auto &field : type_fields) |
2288 | AddFieldToRecordType(type, field.first, field.second, lldb::eAccessPublic, |
2289 | 0); |
2290 | if (packed) |
2291 | SetIsPacked(type); |
2292 | CompleteTagDeclarationDefinition(type); |
2293 | return type; |
2294 | } |
2295 | |
2296 | CompilerType TypeSystemClang::GetOrCreateStructForIdentifier( |
2297 | ConstString type_name, |
2298 | const std::initializer_list<std::pair<const char *, CompilerType>> |
2299 | &type_fields, |
2300 | bool packed) { |
2301 | CompilerType type; |
2302 | if ((type = GetTypeForIdentifier<clang::CXXRecordDecl>(type_name)).IsValid()) |
2303 | return type; |
2304 | |
2305 | return CreateStructForIdentifier(type_name, type_fields, packed); |
2306 | } |
2307 | |
2308 | #pragma mark Enumeration Types |
2309 | |
2310 | CompilerType TypeSystemClang::CreateEnumerationType( |
2311 | llvm::StringRef name, clang::DeclContext *decl_ctx, |
2312 | OptionalClangModuleID owning_module, const Declaration &decl, |
2313 | const CompilerType &integer_clang_type, bool is_scoped) { |
2314 | // TODO: Do something intelligent with the Declaration object passed in |
2315 | // like maybe filling in the SourceLocation with it... |
2316 | ASTContext &ast = getASTContext(); |
2317 | |
2318 | // TODO: ask about these... |
2319 | // const bool IsFixed = false; |
2320 | EnumDecl *enum_decl = EnumDecl::CreateDeserialized(ast, 0); |
2321 | enum_decl->setDeclContext(decl_ctx); |
2322 | if (!name.empty()) |
2323 | enum_decl->setDeclName(&ast.Idents.get(name)); |
2324 | enum_decl->setScoped(is_scoped); |
2325 | enum_decl->setScopedUsingClassTag(is_scoped); |
2326 | enum_decl->setFixed(false); |
2327 | SetOwningModule(enum_decl, owning_module); |
2328 | if (decl_ctx) |
2329 | decl_ctx->addDecl(enum_decl); |
2330 | |
2331 | // TODO: check if we should be setting the promotion type too? |
2332 | enum_decl->setIntegerType(ClangUtil::GetQualType(integer_clang_type)); |
2333 | |
2334 | enum_decl->setAccess(AS_public); // TODO respect what's in the debug info |
2335 | |
2336 | return GetType(ast.getTagDeclType(enum_decl)); |
2337 | } |
2338 | |
2339 | CompilerType TypeSystemClang::GetIntTypeFromBitSize(size_t bit_size, |
2340 | bool is_signed) { |
2341 | clang::ASTContext &ast = getASTContext(); |
2342 | |
2343 | if (is_signed) { |
2344 | if (bit_size == ast.getTypeSize(ast.SignedCharTy)) |
2345 | return GetType(ast.SignedCharTy); |
2346 | |
2347 | if (bit_size == ast.getTypeSize(ast.ShortTy)) |
2348 | return GetType(ast.ShortTy); |
2349 | |
2350 | if (bit_size == ast.getTypeSize(ast.IntTy)) |
2351 | return GetType(ast.IntTy); |
2352 | |
2353 | if (bit_size == ast.getTypeSize(ast.LongTy)) |
2354 | return GetType(ast.LongTy); |
2355 | |
2356 | if (bit_size == ast.getTypeSize(ast.LongLongTy)) |
2357 | return GetType(ast.LongLongTy); |
2358 | |
2359 | if (bit_size == ast.getTypeSize(ast.Int128Ty)) |
2360 | return GetType(ast.Int128Ty); |
2361 | } else { |
2362 | if (bit_size == ast.getTypeSize(ast.UnsignedCharTy)) |
2363 | return GetType(ast.UnsignedCharTy); |
2364 | |
2365 | if (bit_size == ast.getTypeSize(ast.UnsignedShortTy)) |
2366 | return GetType(ast.UnsignedShortTy); |
2367 | |
2368 | if (bit_size == ast.getTypeSize(ast.UnsignedIntTy)) |
2369 | return GetType(ast.UnsignedIntTy); |
2370 | |
2371 | if (bit_size == ast.getTypeSize(ast.UnsignedLongTy)) |
2372 | return GetType(ast.UnsignedLongTy); |
2373 | |
2374 | if (bit_size == ast.getTypeSize(ast.UnsignedLongLongTy)) |
2375 | return GetType(ast.UnsignedLongLongTy); |
2376 | |
2377 | if (bit_size == ast.getTypeSize(ast.UnsignedInt128Ty)) |
2378 | return GetType(ast.UnsignedInt128Ty); |
2379 | } |
2380 | return CompilerType(); |
2381 | } |
2382 | |
2383 | CompilerType TypeSystemClang::GetPointerSizedIntType(bool is_signed) { |
2384 | return GetIntTypeFromBitSize( |
2385 | getASTContext().getTypeSize(getASTContext().VoidPtrTy), is_signed); |
2386 | } |
2387 | |
2388 | void TypeSystemClang::DumpDeclContextHiearchy(clang::DeclContext *decl_ctx) { |
2389 | if (decl_ctx) { |
2390 | DumpDeclContextHiearchy(decl_ctx->getParent()); |
2391 | |
2392 | clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl_ctx); |
2393 | if (named_decl) { |
2394 | printf("%20s: %s\n", decl_ctx->getDeclKindName(), |
2395 | named_decl->getDeclName().getAsString().c_str()); |
2396 | } else { |
2397 | printf("%20s\n", decl_ctx->getDeclKindName()); |
2398 | } |
2399 | } |
2400 | } |
2401 | |
2402 | void TypeSystemClang::DumpDeclHiearchy(clang::Decl *decl) { |
2403 | if (decl == nullptr) |
2404 | return; |
2405 | DumpDeclContextHiearchy(decl->getDeclContext()); |
2406 | |
2407 | clang::RecordDecl *record_decl = llvm::dyn_cast<clang::RecordDecl>(decl); |
2408 | if (record_decl) { |
2409 | printf("%20s: %s%s\n", decl->getDeclKindName(), |
2410 | record_decl->getDeclName().getAsString().c_str(), |
2411 | record_decl->isInjectedClassName() ? " (injected class name)" : ""); |
2412 | |
2413 | } else { |
2414 | clang::NamedDecl *named_decl = llvm::dyn_cast<clang::NamedDecl>(decl); |
2415 | if (named_decl) { |
2416 | printf("%20s: %s\n", decl->getDeclKindName(), |
2417 | named_decl->getDeclName().getAsString().c_str()); |
2418 | } else { |
2419 | printf("%20s\n", decl->getDeclKindName()); |
2420 | } |
2421 | } |
2422 | } |
2423 | |
2424 | bool TypeSystemClang::DeclsAreEquivalent(clang::Decl *lhs_decl, |
2425 | clang::Decl *rhs_decl) { |
2426 | if (lhs_decl && rhs_decl) { |
2427 | // Make sure the decl kinds match first |
2428 | const clang::Decl::Kind lhs_decl_kind = lhs_decl->getKind(); |
2429 | const clang::Decl::Kind rhs_decl_kind = rhs_decl->getKind(); |
2430 | |
2431 | if (lhs_decl_kind == rhs_decl_kind) { |
2432 | // Now check that the decl contexts kinds are all equivalent before we |
2433 | // have to check any names of the decl contexts... |
2434 | clang::DeclContext *lhs_decl_ctx = lhs_decl->getDeclContext(); |
2435 | clang::DeclContext *rhs_decl_ctx = rhs_decl->getDeclContext(); |
2436 | if (lhs_decl_ctx && rhs_decl_ctx) { |
2437 | while (true) { |
2438 | if (lhs_decl_ctx && rhs_decl_ctx) { |
2439 | const clang::Decl::Kind lhs_decl_ctx_kind = |
2440 | lhs_decl_ctx->getDeclKind(); |
2441 | const clang::Decl::Kind rhs_decl_ctx_kind = |
2442 | rhs_decl_ctx->getDeclKind(); |
2443 | if (lhs_decl_ctx_kind == rhs_decl_ctx_kind) { |
2444 | lhs_decl_ctx = lhs_decl_ctx->getParent(); |
2445 | rhs_decl_ctx = rhs_decl_ctx->getParent(); |
2446 | |
2447 | if (lhs_decl_ctx == nullptr && rhs_decl_ctx == nullptr) |
2448 | break; |
2449 | } else |
2450 | return false; |
2451 | } else |
2452 | return false; |
2453 | } |
2454 | |
2455 | // Now make sure the name of the decls match |
2456 | clang::NamedDecl *lhs_named_decl = |
2457 | llvm::dyn_cast<clang::NamedDecl>(lhs_decl); |
2458 | clang::NamedDecl *rhs_named_decl = |
2459 | llvm::dyn_cast<clang::NamedDecl>(rhs_decl); |
2460 | if (lhs_named_decl && rhs_named_decl) { |
2461 | clang::DeclarationName lhs_decl_name = lhs_named_decl->getDeclName(); |
2462 | clang::DeclarationName rhs_decl_name = rhs_named_decl->getDeclName(); |
2463 | if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) { |
2464 | if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString()) |
2465 | return false; |
2466 | } else |
2467 | return false; |
2468 | } else |
2469 | return false; |
2470 | |
2471 | // We know that the decl context kinds all match, so now we need to |
2472 | // make sure the names match as well |
2473 | lhs_decl_ctx = lhs_decl->getDeclContext(); |
2474 | rhs_decl_ctx = rhs_decl->getDeclContext(); |
2475 | while (true) { |
2476 | switch (lhs_decl_ctx->getDeclKind()) { |
2477 | case clang::Decl::TranslationUnit: |
2478 | // We don't care about the translation unit names |
2479 | return true; |
2480 | default: { |
2481 | clang::NamedDecl *lhs_named_decl = |
2482 | llvm::dyn_cast<clang::NamedDecl>(lhs_decl_ctx); |
2483 | clang::NamedDecl *rhs_named_decl = |
2484 | llvm::dyn_cast<clang::NamedDecl>(rhs_decl_ctx); |
2485 | if (lhs_named_decl && rhs_named_decl) { |
2486 | clang::DeclarationName lhs_decl_name = |
2487 | lhs_named_decl->getDeclName(); |
2488 | clang::DeclarationName rhs_decl_name = |
2489 | rhs_named_decl->getDeclName(); |
2490 | if (lhs_decl_name.getNameKind() == rhs_decl_name.getNameKind()) { |
2491 | if (lhs_decl_name.getAsString() != rhs_decl_name.getAsString()) |
2492 | return false; |
2493 | } else |
2494 | return false; |
2495 | } else |
2496 | return false; |
2497 | } break; |
2498 | } |
2499 | lhs_decl_ctx = lhs_decl_ctx->getParent(); |
2500 | rhs_decl_ctx = rhs_decl_ctx->getParent(); |
2501 | } |
2502 | } |
2503 | } |
2504 | } |
2505 | return false; |
2506 | } |
2507 | bool TypeSystemClang::GetCompleteDecl(clang::ASTContext *ast, |
2508 | clang::Decl *decl) { |
2509 | if (!decl) |
2510 | return false; |
2511 | |
2512 | ExternalASTSource *ast_source = ast->getExternalSource(); |
2513 | |
2514 | if (!ast_source) |
2515 | return false; |
2516 | |
2517 | if (clang::TagDecl *tag_decl = llvm::dyn_cast<clang::TagDecl>(decl)) { |
2518 | if (tag_decl->isCompleteDefinition()) |
2519 | return true; |
2520 | |
2521 | if (!tag_decl->hasExternalLexicalStorage()) |
2522 | return false; |
2523 | |
2524 | ast_source->CompleteType(tag_decl); |
2525 | |
2526 | return !tag_decl->getTypeForDecl()->isIncompleteType(); |
2527 | } else if (clang::ObjCInterfaceDecl *objc_interface_decl = |
2528 | llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl)) { |
2529 | if (objc_interface_decl->getDefinition()) |
2530 | return true; |
2531 | |
2532 | if (!objc_interface_decl->hasExternalLexicalStorage()) |
2533 | return false; |
2534 | |
2535 | ast_source->CompleteType(objc_interface_decl); |
2536 | |
2537 | return !objc_interface_decl->getTypeForDecl()->isIncompleteType(); |
2538 | } else { |
2539 | return false; |
2540 | } |
2541 | } |
2542 | |
2543 | void TypeSystemClang::SetMetadataAsUserID(const clang::Decl *decl, |
2544 | user_id_t user_id) { |
2545 | ClangASTMetadata meta_data; |
2546 | meta_data.SetUserID(user_id); |
2547 | SetMetadata(decl, meta_data); |
2548 | } |
2549 | |
2550 | void TypeSystemClang::SetMetadataAsUserID(const clang::Type *type, |
2551 | user_id_t user_id) { |
2552 | ClangASTMetadata meta_data; |
2553 | meta_data.SetUserID(user_id); |
2554 | SetMetadata(type, meta_data); |
2555 | } |
2556 | |
2557 | void TypeSystemClang::SetMetadata(const clang::Decl *object, |
2558 | ClangASTMetadata &metadata) { |
2559 | m_decl_metadata[object] = metadata; |
2560 | } |
2561 | |
2562 | void TypeSystemClang::SetMetadata(const clang::Type *object, |
2563 | ClangASTMetadata &metadata) { |
2564 | m_type_metadata[object] = metadata; |
2565 | } |
2566 | |
2567 | ClangASTMetadata *TypeSystemClang::GetMetadata(const clang::Decl *object) { |
2568 | auto It = m_decl_metadata.find(object); |
2569 | if (It != m_decl_metadata.end()) |
2570 | return &It->second; |
2571 | return nullptr; |
2572 | } |
2573 | |
2574 | ClangASTMetadata *TypeSystemClang::GetMetadata(const clang::Type *object) { |
2575 | auto It = m_type_metadata.find(object); |
2576 | if (It != m_type_metadata.end()) |
2577 | return &It->second; |
2578 | return nullptr; |
2579 | } |
2580 | |
2581 | void TypeSystemClang::SetCXXRecordDeclAccess(const clang::CXXRecordDecl *object, |
2582 | clang::AccessSpecifier access) { |
2583 | if (access == clang::AccessSpecifier::AS_none) |
2584 | m_cxx_record_decl_access.erase(object); |
2585 | else |
2586 | m_cxx_record_decl_access[object] = access; |
2587 | } |
2588 | |
2589 | clang::AccessSpecifier |
2590 | TypeSystemClang::GetCXXRecordDeclAccess(const clang::CXXRecordDecl *object) { |
2591 | auto It = m_cxx_record_decl_access.find(object); |
2592 | if (It != m_cxx_record_decl_access.end()) |
2593 | return It->second; |
2594 | return clang::AccessSpecifier::AS_none; |
2595 | } |
2596 | |
2597 | clang::DeclContext * |
2598 | TypeSystemClang::GetDeclContextForType(const CompilerType &type) { |
2599 | return GetDeclContextForType(ClangUtil::GetQualType(type)); |
2600 | } |
2601 | |
2602 | /// Aggressively desugar the provided type, skipping past various kinds of |
2603 | /// syntactic sugar and other constructs one typically wants to ignore. |
2604 | /// The \p mask argument allows one to skip certain kinds of simplifications, |
2605 | /// when one wishes to handle a certain kind of type directly. |
2606 | static QualType |
2607 | RemoveWrappingTypes(QualType type, ArrayRef<clang::Type::TypeClass> mask = {}) { |
2608 | while (true) { |
2609 | if (find(mask, type->getTypeClass()) != mask.end()) |
2610 | return type; |
2611 | switch (type->getTypeClass()) { |
2612 | // This is not fully correct as _Atomic is more than sugar, but it is |
2613 | // sufficient for the purposes we care about. |
2614 | case clang::Type::Atomic: |
2615 | type = cast<clang::AtomicType>(type)->getValueType(); |
2616 | break; |
2617 | case clang::Type::Auto: |
2618 | case clang::Type::Decltype: |
2619 | case clang::Type::Elaborated: |
2620 | case clang::Type::Paren: |
2621 | case clang::Type::SubstTemplateTypeParm: |
2622 | case clang::Type::TemplateSpecialization: |
2623 | case clang::Type::Typedef: |
2624 | case clang::Type::TypeOf: |
2625 | case clang::Type::TypeOfExpr: |
2626 | case clang::Type::Using: |
2627 | type = type->getLocallyUnqualifiedSingleStepDesugaredType(); |
2628 | break; |
2629 | default: |
2630 | return type; |
2631 | } |
2632 | } |
2633 | } |
2634 | |
2635 | clang::DeclContext * |
2636 | TypeSystemClang::GetDeclContextForType(clang::QualType type) { |
2637 | if (type.isNull()) |
2638 | return nullptr; |
2639 | |
2640 | clang::QualType qual_type = RemoveWrappingTypes(type.getCanonicalType()); |
2641 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
2642 | switch (type_class) { |
2643 | case clang::Type::ObjCInterface: |
2644 | return llvm::cast<clang::ObjCObjectType>(qual_type.getTypePtr()) |
2645 | ->getInterface(); |
2646 | case clang::Type::ObjCObjectPointer: |
2647 | return GetDeclContextForType( |
2648 | llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) |
2649 | ->getPointeeType()); |
2650 | case clang::Type::Record: |
2651 | return llvm::cast<clang::RecordType>(qual_type)->getDecl(); |
2652 | case clang::Type::Enum: |
2653 | return llvm::cast<clang::EnumType>(qual_type)->getDecl(); |
2654 | default: |
2655 | break; |
2656 | } |
2657 | // No DeclContext in this type... |
2658 | return nullptr; |
2659 | } |
2660 | |
2661 | static bool GetCompleteQualType(clang::ASTContext *ast, |
2662 | clang::QualType qual_type, |
2663 | bool allow_completion = true) { |
2664 | qual_type = RemoveWrappingTypes(qual_type); |
2665 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
2666 | switch (type_class) { |
2667 | case clang::Type::ConstantArray: |
2668 | case clang::Type::IncompleteArray: |
2669 | case clang::Type::VariableArray: { |
2670 | const clang::ArrayType *array_type = |
2671 | llvm::dyn_cast<clang::ArrayType>(qual_type.getTypePtr()); |
2672 | |
2673 | if (array_type) |
2674 | return GetCompleteQualType(ast, array_type->getElementType(), |
2675 | allow_completion); |
2676 | } break; |
2677 | case clang::Type::Record: { |
2678 | clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); |
2679 | if (cxx_record_decl) { |
2680 | if (cxx_record_decl->hasExternalLexicalStorage()) { |
2681 | const bool is_complete = cxx_record_decl->isCompleteDefinition(); |
2682 | const bool fields_loaded = |
2683 | cxx_record_decl->hasLoadedFieldsFromExternalStorage(); |
2684 | if (is_complete && fields_loaded) |
2685 | return true; |
2686 | |
2687 | if (!allow_completion) |
2688 | return false; |
2689 | |
2690 | // Call the field_begin() accessor to for it to use the external source |
2691 | // to load the fields... |
2692 | clang::ExternalASTSource *external_ast_source = |
2693 | ast->getExternalSource(); |
2694 | if (external_ast_source) { |
2695 | external_ast_source->CompleteType(cxx_record_decl); |
2696 | if (cxx_record_decl->isCompleteDefinition()) { |
2697 | cxx_record_decl->field_begin(); |
2698 | cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true); |
2699 | } |
2700 | } |
2701 | } |
2702 | } |
2703 | const clang::TagType *tag_type = |
2704 | llvm::cast<clang::TagType>(qual_type.getTypePtr()); |
2705 | return !tag_type->isIncompleteType(); |
2706 | } break; |
2707 | |
2708 | case clang::Type::Enum: { |
2709 | const clang::TagType *tag_type = |
2710 | llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()); |
2711 | if (tag_type) { |
2712 | clang::TagDecl *tag_decl = tag_type->getDecl(); |
2713 | if (tag_decl) { |
2714 | if (tag_decl->getDefinition()) |
2715 | return true; |
2716 | |
2717 | if (!allow_completion) |
2718 | return false; |
2719 | |
2720 | if (tag_decl->hasExternalLexicalStorage()) { |
2721 | if (ast) { |
2722 | clang::ExternalASTSource *external_ast_source = |
2723 | ast->getExternalSource(); |
2724 | if (external_ast_source) { |
2725 | external_ast_source->CompleteType(tag_decl); |
2726 | return !tag_type->isIncompleteType(); |
2727 | } |
2728 | } |
2729 | } |
2730 | return false; |
2731 | } |
2732 | } |
2733 | |
2734 | } break; |
2735 | case clang::Type::ObjCObject: |
2736 | case clang::Type::ObjCInterface: { |
2737 | const clang::ObjCObjectType *objc_class_type = |
2738 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); |
2739 | if (objc_class_type) { |
2740 | clang::ObjCInterfaceDecl *class_interface_decl = |
2741 | objc_class_type->getInterface(); |
2742 | // We currently can't complete objective C types through the newly added |
2743 | // ASTContext because it only supports TagDecl objects right now... |
2744 | if (class_interface_decl) { |
2745 | if (class_interface_decl->getDefinition()) |
2746 | return true; |
2747 | |
2748 | if (!allow_completion) |
2749 | return false; |
2750 | |
2751 | if (class_interface_decl->hasExternalLexicalStorage()) { |
2752 | if (ast) { |
2753 | clang::ExternalASTSource *external_ast_source = |
2754 | ast->getExternalSource(); |
2755 | if (external_ast_source) { |
2756 | external_ast_source->CompleteType(class_interface_decl); |
2757 | return !objc_class_type->isIncompleteType(); |
2758 | } |
2759 | } |
2760 | } |
2761 | return false; |
2762 | } |
2763 | } |
2764 | } break; |
2765 | |
2766 | case clang::Type::Attributed: |
2767 | return GetCompleteQualType( |
2768 | ast, llvm::cast<clang::AttributedType>(qual_type)->getModifiedType(), |
2769 | allow_completion); |
2770 | |
2771 | default: |
2772 | break; |
2773 | } |
2774 | |
2775 | return true; |
2776 | } |
2777 | |
2778 | static clang::ObjCIvarDecl::AccessControl |
2779 | ConvertAccessTypeToObjCIvarAccessControl(AccessType access) { |
2780 | switch (access) { |
2781 | case eAccessNone: |
2782 | return clang::ObjCIvarDecl::None; |
2783 | case eAccessPublic: |
2784 | return clang::ObjCIvarDecl::Public; |
2785 | case eAccessPrivate: |
2786 | return clang::ObjCIvarDecl::Private; |
2787 | case eAccessProtected: |
2788 | return clang::ObjCIvarDecl::Protected; |
2789 | case eAccessPackage: |
2790 | return clang::ObjCIvarDecl::Package; |
2791 | } |
2792 | return clang::ObjCIvarDecl::None; |
2793 | } |
2794 | |
2795 | // Tests |
2796 | |
2797 | #ifndef NDEBUG |
2798 | bool TypeSystemClang::Verify(lldb::opaque_compiler_type_t type) { |
2799 | return !type || llvm::isa<clang::Type>(GetQualType(type).getTypePtr()); |
2800 | } |
2801 | #endif |
2802 | |
2803 | bool TypeSystemClang::IsAggregateType(lldb::opaque_compiler_type_t type) { |
2804 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
2805 | |
2806 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
2807 | switch (type_class) { |
2808 | case clang::Type::IncompleteArray: |
2809 | case clang::Type::VariableArray: |
2810 | case clang::Type::ConstantArray: |
2811 | case clang::Type::ExtVector: |
2812 | case clang::Type::Vector: |
2813 | case clang::Type::Record: |
2814 | case clang::Type::ObjCObject: |
2815 | case clang::Type::ObjCInterface: |
2816 | return true; |
2817 | default: |
2818 | break; |
2819 | } |
2820 | // The clang type does have a value |
2821 | return false; |
2822 | } |
2823 | |
2824 | bool TypeSystemClang::IsAnonymousType(lldb::opaque_compiler_type_t type) { |
2825 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
2826 | |
2827 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
2828 | switch (type_class) { |
2829 | case clang::Type::Record: { |
2830 | if (const clang::RecordType *record_type = |
2831 | llvm::dyn_cast_or_null<clang::RecordType>( |
2832 | qual_type.getTypePtrOrNull())) { |
2833 | if (const clang::RecordDecl *record_decl = record_type->getDecl()) { |
2834 | return record_decl->isAnonymousStructOrUnion(); |
2835 | } |
2836 | } |
2837 | break; |
2838 | } |
2839 | default: |
2840 | break; |
2841 | } |
2842 | // The clang type does have a value |
2843 | return false; |
2844 | } |
2845 | |
2846 | bool TypeSystemClang::IsArrayType(lldb::opaque_compiler_type_t type, |
2847 | CompilerType *element_type_ptr, |
2848 | uint64_t *size, bool *is_incomplete) { |
2849 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
2850 | |
2851 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
2852 | switch (type_class) { |
2853 | default: |
2854 | break; |
2855 | |
2856 | case clang::Type::ConstantArray: |
2857 | if (element_type_ptr) |
2858 | element_type_ptr->SetCompilerType( |
2859 | this, llvm::cast<clang::ConstantArrayType>(qual_type) |
2860 | ->getElementType() |
2861 | .getAsOpaquePtr()); |
2862 | if (size) |
2863 | *size = llvm::cast<clang::ConstantArrayType>(qual_type) |
2864 | ->getSize() |
2865 | .getLimitedValue(ULLONG_MAX(9223372036854775807LL*2ULL+1ULL)); |
2866 | if (is_incomplete) |
2867 | *is_incomplete = false; |
2868 | return true; |
2869 | |
2870 | case clang::Type::IncompleteArray: |
2871 | if (element_type_ptr) |
2872 | element_type_ptr->SetCompilerType( |
2873 | this, llvm::cast<clang::IncompleteArrayType>(qual_type) |
2874 | ->getElementType() |
2875 | .getAsOpaquePtr()); |
2876 | if (size) |
2877 | *size = 0; |
2878 | if (is_incomplete) |
2879 | *is_incomplete = true; |
2880 | return true; |
2881 | |
2882 | case clang::Type::VariableArray: |
2883 | if (element_type_ptr) |
2884 | element_type_ptr->SetCompilerType( |
2885 | this, llvm::cast<clang::VariableArrayType>(qual_type) |
2886 | ->getElementType() |
2887 | .getAsOpaquePtr()); |
2888 | if (size) |
2889 | *size = 0; |
2890 | if (is_incomplete) |
2891 | *is_incomplete = false; |
2892 | return true; |
2893 | |
2894 | case clang::Type::DependentSizedArray: |
2895 | if (element_type_ptr) |
2896 | element_type_ptr->SetCompilerType( |
2897 | this, llvm::cast<clang::DependentSizedArrayType>(qual_type) |
2898 | ->getElementType() |
2899 | .getAsOpaquePtr()); |
2900 | if (size) |
2901 | *size = 0; |
2902 | if (is_incomplete) |
2903 | *is_incomplete = false; |
2904 | return true; |
2905 | } |
2906 | if (element_type_ptr) |
2907 | element_type_ptr->Clear(); |
2908 | if (size) |
2909 | *size = 0; |
2910 | if (is_incomplete) |
2911 | *is_incomplete = false; |
2912 | return false; |
2913 | } |
2914 | |
2915 | bool TypeSystemClang::IsVectorType(lldb::opaque_compiler_type_t type, |
2916 | CompilerType *element_type, uint64_t *size) { |
2917 | clang::QualType qual_type(GetCanonicalQualType(type)); |
2918 | |
2919 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
2920 | switch (type_class) { |
2921 | case clang::Type::Vector: { |
2922 | const clang::VectorType *vector_type = |
2923 | qual_type->getAs<clang::VectorType>(); |
2924 | if (vector_type) { |
2925 | if (size) |
2926 | *size = vector_type->getNumElements(); |
2927 | if (element_type) |
2928 | *element_type = GetType(vector_type->getElementType()); |
2929 | } |
2930 | return true; |
2931 | } break; |
2932 | case clang::Type::ExtVector: { |
2933 | const clang::ExtVectorType *ext_vector_type = |
2934 | qual_type->getAs<clang::ExtVectorType>(); |
2935 | if (ext_vector_type) { |
2936 | if (size) |
2937 | *size = ext_vector_type->getNumElements(); |
2938 | if (element_type) |
2939 | *element_type = |
2940 | CompilerType(this, ext_vector_type->getElementType().getAsOpaquePtr()); |
2941 | } |
2942 | return true; |
2943 | } |
2944 | default: |
2945 | break; |
2946 | } |
2947 | return false; |
2948 | } |
2949 | |
2950 | bool TypeSystemClang::IsRuntimeGeneratedType( |
2951 | lldb::opaque_compiler_type_t type) { |
2952 | clang::DeclContext *decl_ctx = GetDeclContextForType(GetQualType(type)); |
2953 | if (!decl_ctx) |
2954 | return false; |
2955 | |
2956 | if (!llvm::isa<clang::ObjCInterfaceDecl>(decl_ctx)) |
2957 | return false; |
2958 | |
2959 | clang::ObjCInterfaceDecl *result_iface_decl = |
2960 | llvm::dyn_cast<clang::ObjCInterfaceDecl>(decl_ctx); |
2961 | |
2962 | ClangASTMetadata *ast_metadata = GetMetadata(result_iface_decl); |
2963 | if (!ast_metadata) |
2964 | return false; |
2965 | return (ast_metadata->GetISAPtr() != 0); |
2966 | } |
2967 | |
2968 | bool TypeSystemClang::IsCharType(lldb::opaque_compiler_type_t type) { |
2969 | return GetQualType(type).getUnqualifiedType()->isCharType(); |
2970 | } |
2971 | |
2972 | bool TypeSystemClang::IsCompleteType(lldb::opaque_compiler_type_t type) { |
2973 | // If the type hasn't been lazily completed yet, complete it now so that we |
2974 | // can give the caller an accurate answer whether the type actually has a |
2975 | // definition. Without completing the type now we would just tell the user |
2976 | // the current (internal) completeness state of the type and most users don't |
2977 | // care (or even know) about this behavior. |
2978 | const bool allow_completion = true; |
2979 | return GetCompleteQualType(&getASTContext(), GetQualType(type), |
2980 | allow_completion); |
2981 | } |
2982 | |
2983 | bool TypeSystemClang::IsConst(lldb::opaque_compiler_type_t type) { |
2984 | return GetQualType(type).isConstQualified(); |
2985 | } |
2986 | |
2987 | bool TypeSystemClang::IsCStringType(lldb::opaque_compiler_type_t type, |
2988 | uint32_t &length) { |
2989 | CompilerType pointee_or_element_clang_type; |
2990 | length = 0; |
2991 | Flags type_flags(GetTypeInfo(type, &pointee_or_element_clang_type)); |
2992 | |
2993 | if (!pointee_or_element_clang_type.IsValid()) |
2994 | return false; |
2995 | |
2996 | if (type_flags.AnySet(eTypeIsArray | eTypeIsPointer)) { |
2997 | if (pointee_or_element_clang_type.IsCharType()) { |
2998 | if (type_flags.Test(eTypeIsArray)) { |
2999 | // We know the size of the array and it could be a C string since it is |
3000 | // an array of characters |
3001 | length = llvm::cast<clang::ConstantArrayType>( |
3002 | GetCanonicalQualType(type).getTypePtr()) |
3003 | ->getSize() |
3004 | .getLimitedValue(); |
3005 | } |
3006 | return true; |
3007 | } |
3008 | } |
3009 | return false; |
3010 | } |
3011 | |
3012 | bool TypeSystemClang::IsFunctionType(lldb::opaque_compiler_type_t type) { |
3013 | if (type) { |
3014 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
3015 | |
3016 | if (qual_type->isFunctionType()) { |
3017 | return true; |
3018 | } |
3019 | |
3020 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3021 | switch (type_class) { |
3022 | default: |
3023 | break; |
3024 | case clang::Type::LValueReference: |
3025 | case clang::Type::RValueReference: { |
3026 | const clang::ReferenceType *reference_type = |
3027 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); |
3028 | if (reference_type) |
3029 | return IsFunctionType( |
3030 | reference_type->getPointeeType().getAsOpaquePtr()); |
3031 | } break; |
3032 | } |
3033 | } |
3034 | return false; |
3035 | } |
3036 | |
3037 | // Used to detect "Homogeneous Floating-point Aggregates" |
3038 | uint32_t |
3039 | TypeSystemClang::IsHomogeneousAggregate(lldb::opaque_compiler_type_t type, |
3040 | CompilerType *base_type_ptr) { |
3041 | if (!type) |
3042 | return 0; |
3043 | |
3044 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
3045 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3046 | switch (type_class) { |
3047 | case clang::Type::Record: |
3048 | if (GetCompleteType(type)) { |
3049 | const clang::CXXRecordDecl *cxx_record_decl = |
3050 | qual_type->getAsCXXRecordDecl(); |
3051 | if (cxx_record_decl) { |
3052 | if (cxx_record_decl->getNumBases() || cxx_record_decl->isDynamicClass()) |
3053 | return 0; |
3054 | } |
3055 | const clang::RecordType *record_type = |
3056 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
3057 | if (record_type) { |
3058 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
3059 | if (record_decl) { |
3060 | // We are looking for a structure that contains only floating point |
3061 | // types |
3062 | clang::RecordDecl::field_iterator field_pos, |
3063 | field_end = record_decl->field_end(); |
3064 | uint32_t num_fields = 0; |
3065 | bool is_hva = false; |
3066 | bool is_hfa = false; |
3067 | clang::QualType base_qual_type; |
3068 | uint64_t base_bitwidth = 0; |
3069 | for (field_pos = record_decl->field_begin(); field_pos != field_end; |
3070 | ++field_pos) { |
3071 | clang::QualType field_qual_type = field_pos->getType(); |
3072 | uint64_t field_bitwidth = getASTContext().getTypeSize(qual_type); |
3073 | if (field_qual_type->isFloatingType()) { |
3074 | if (field_qual_type->isComplexType()) |
3075 | return 0; |
3076 | else { |
3077 | if (num_fields == 0) |
3078 | base_qual_type = field_qual_type; |
3079 | else { |
3080 | if (is_hva) |
3081 | return 0; |
3082 | is_hfa = true; |
3083 | if (field_qual_type.getTypePtr() != |
3084 | base_qual_type.getTypePtr()) |
3085 | return 0; |
3086 | } |
3087 | } |
3088 | } else if (field_qual_type->isVectorType() || |
3089 | field_qual_type->isExtVectorType()) { |
3090 | if (num_fields == 0) { |
3091 | base_qual_type = field_qual_type; |
3092 | base_bitwidth = field_bitwidth; |
3093 | } else { |
3094 | if (is_hfa) |
3095 | return 0; |
3096 | is_hva = true; |
3097 | if (base_bitwidth != field_bitwidth) |
3098 | return 0; |
3099 | if (field_qual_type.getTypePtr() != base_qual_type.getTypePtr()) |
3100 | return 0; |
3101 | } |
3102 | } else |
3103 | return 0; |
3104 | ++num_fields; |
3105 | } |
3106 | if (base_type_ptr) |
3107 | *base_type_ptr = CompilerType(this, base_qual_type.getAsOpaquePtr()); |
3108 | return num_fields; |
3109 | } |
3110 | } |
3111 | } |
3112 | break; |
3113 | |
3114 | default: |
3115 | break; |
3116 | } |
3117 | return 0; |
3118 | } |
3119 | |
3120 | size_t TypeSystemClang::GetNumberOfFunctionArguments( |
3121 | lldb::opaque_compiler_type_t type) { |
3122 | if (type) { |
3123 | clang::QualType qual_type(GetCanonicalQualType(type)); |
3124 | const clang::FunctionProtoType *func = |
3125 | llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); |
3126 | if (func) |
3127 | return func->getNumParams(); |
3128 | } |
3129 | return 0; |
3130 | } |
3131 | |
3132 | CompilerType |
3133 | TypeSystemClang::GetFunctionArgumentAtIndex(lldb::opaque_compiler_type_t type, |
3134 | const size_t index) { |
3135 | if (type) { |
3136 | clang::QualType qual_type(GetQualType(type)); |
3137 | const clang::FunctionProtoType *func = |
3138 | llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); |
3139 | if (func) { |
3140 | if (index < func->getNumParams()) |
3141 | return CompilerType(this, func->getParamType(index).getAsOpaquePtr()); |
3142 | } |
3143 | } |
3144 | return CompilerType(); |
3145 | } |
3146 | |
3147 | bool TypeSystemClang::IsFunctionPointerType(lldb::opaque_compiler_type_t type) { |
3148 | if (type) { |
3149 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
3150 | |
3151 | if (qual_type->isFunctionPointerType()) |
3152 | return true; |
3153 | |
3154 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3155 | switch (type_class) { |
3156 | default: |
3157 | break; |
3158 | |
3159 | case clang::Type::LValueReference: |
3160 | case clang::Type::RValueReference: { |
3161 | const clang::ReferenceType *reference_type = |
3162 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); |
3163 | if (reference_type) |
3164 | return IsFunctionPointerType( |
3165 | reference_type->getPointeeType().getAsOpaquePtr()); |
3166 | } break; |
3167 | } |
3168 | } |
3169 | return false; |
3170 | } |
3171 | |
3172 | bool TypeSystemClang::IsBlockPointerType( |
3173 | lldb::opaque_compiler_type_t type, |
3174 | CompilerType *function_pointer_type_ptr) { |
3175 | if (type) { |
3176 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
3177 | |
3178 | if (qual_type->isBlockPointerType()) { |
3179 | if (function_pointer_type_ptr) { |
3180 | const clang::BlockPointerType *block_pointer_type = |
3181 | qual_type->castAs<clang::BlockPointerType>(); |
3182 | QualType pointee_type = block_pointer_type->getPointeeType(); |
3183 | QualType function_pointer_type = m_ast_up->getPointerType(pointee_type); |
3184 | *function_pointer_type_ptr = |
3185 | CompilerType(this, function_pointer_type.getAsOpaquePtr()); |
3186 | } |
3187 | return true; |
3188 | } |
3189 | |
3190 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3191 | switch (type_class) { |
3192 | default: |
3193 | break; |
3194 | |
3195 | case clang::Type::LValueReference: |
3196 | case clang::Type::RValueReference: { |
3197 | const clang::ReferenceType *reference_type = |
3198 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); |
3199 | if (reference_type) |
3200 | return IsBlockPointerType( |
3201 | reference_type->getPointeeType().getAsOpaquePtr(), |
3202 | function_pointer_type_ptr); |
3203 | } break; |
3204 | } |
3205 | } |
3206 | return false; |
3207 | } |
3208 | |
3209 | bool TypeSystemClang::IsIntegerType(lldb::opaque_compiler_type_t type, |
3210 | bool &is_signed) { |
3211 | if (!type) |
3212 | return false; |
3213 | |
3214 | clang::QualType qual_type(GetCanonicalQualType(type)); |
3215 | const clang::BuiltinType *builtin_type = |
3216 | llvm::dyn_cast<clang::BuiltinType>(qual_type->getCanonicalTypeInternal()); |
3217 | |
3218 | if (builtin_type) { |
3219 | if (builtin_type->isInteger()) { |
3220 | is_signed = builtin_type->isSignedInteger(); |
3221 | return true; |
3222 | } |
3223 | } |
3224 | |
3225 | return false; |
3226 | } |
3227 | |
3228 | bool TypeSystemClang::IsEnumerationType(lldb::opaque_compiler_type_t type, |
3229 | bool &is_signed) { |
3230 | if (type) { |
3231 | const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>( |
3232 | GetCanonicalQualType(type)->getCanonicalTypeInternal()); |
3233 | |
3234 | if (enum_type) { |
3235 | IsIntegerType(enum_type->getDecl()->getIntegerType().getAsOpaquePtr(), |
3236 | is_signed); |
3237 | return true; |
3238 | } |
3239 | } |
3240 | |
3241 | return false; |
3242 | } |
3243 | |
3244 | bool TypeSystemClang::IsScopedEnumerationType( |
3245 | lldb::opaque_compiler_type_t type) { |
3246 | if (type) { |
3247 | const clang::EnumType *enum_type = llvm::dyn_cast<clang::EnumType>( |
3248 | GetCanonicalQualType(type)->getCanonicalTypeInternal()); |
3249 | |
3250 | if (enum_type) { |
3251 | return enum_type->isScopedEnumeralType(); |
3252 | } |
3253 | } |
3254 | |
3255 | return false; |
3256 | } |
3257 | |
3258 | bool TypeSystemClang::IsPointerType(lldb::opaque_compiler_type_t type, |
3259 | CompilerType *pointee_type) { |
3260 | if (type) { |
3261 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
3262 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3263 | switch (type_class) { |
3264 | case clang::Type::Builtin: |
3265 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
3266 | default: |
3267 | break; |
3268 | case clang::BuiltinType::ObjCId: |
3269 | case clang::BuiltinType::ObjCClass: |
3270 | return true; |
3271 | } |
3272 | return false; |
3273 | case clang::Type::ObjCObjectPointer: |
3274 | if (pointee_type) |
3275 | pointee_type->SetCompilerType( |
3276 | this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) |
3277 | ->getPointeeType() |
3278 | .getAsOpaquePtr()); |
3279 | return true; |
3280 | case clang::Type::BlockPointer: |
3281 | if (pointee_type) |
3282 | pointee_type->SetCompilerType( |
3283 | this, llvm::cast<clang::BlockPointerType>(qual_type) |
3284 | ->getPointeeType() |
3285 | .getAsOpaquePtr()); |
3286 | return true; |
3287 | case clang::Type::Pointer: |
3288 | if (pointee_type) |
3289 | pointee_type->SetCompilerType(this, |
3290 | llvm::cast<clang::PointerType>(qual_type) |
3291 | ->getPointeeType() |
3292 | .getAsOpaquePtr()); |
3293 | return true; |
3294 | case clang::Type::MemberPointer: |
3295 | if (pointee_type) |
3296 | pointee_type->SetCompilerType( |
3297 | this, llvm::cast<clang::MemberPointerType>(qual_type) |
3298 | ->getPointeeType() |
3299 | .getAsOpaquePtr()); |
3300 | return true; |
3301 | default: |
3302 | break; |
3303 | } |
3304 | } |
3305 | if (pointee_type) |
3306 | pointee_type->Clear(); |
3307 | return false; |
3308 | } |
3309 | |
3310 | bool TypeSystemClang::IsPointerOrReferenceType( |
3311 | lldb::opaque_compiler_type_t type, CompilerType *pointee_type) { |
3312 | if (type) { |
3313 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
3314 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3315 | switch (type_class) { |
3316 | case clang::Type::Builtin: |
3317 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
3318 | default: |
3319 | break; |
3320 | case clang::BuiltinType::ObjCId: |
3321 | case clang::BuiltinType::ObjCClass: |
3322 | return true; |
3323 | } |
3324 | return false; |
3325 | case clang::Type::ObjCObjectPointer: |
3326 | if (pointee_type) |
3327 | pointee_type->SetCompilerType( |
3328 | this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) |
3329 | ->getPointeeType().getAsOpaquePtr()); |
3330 | return true; |
3331 | case clang::Type::BlockPointer: |
3332 | if (pointee_type) |
3333 | pointee_type->SetCompilerType( |
3334 | this, llvm::cast<clang::BlockPointerType>(qual_type) |
3335 | ->getPointeeType() |
3336 | .getAsOpaquePtr()); |
3337 | return true; |
3338 | case clang::Type::Pointer: |
3339 | if (pointee_type) |
3340 | pointee_type->SetCompilerType(this, |
3341 | llvm::cast<clang::PointerType>(qual_type) |
3342 | ->getPointeeType() |
3343 | .getAsOpaquePtr()); |
3344 | return true; |
3345 | case clang::Type::MemberPointer: |
3346 | if (pointee_type) |
3347 | pointee_type->SetCompilerType( |
3348 | this, llvm::cast<clang::MemberPointerType>(qual_type) |
3349 | ->getPointeeType() |
3350 | .getAsOpaquePtr()); |
3351 | return true; |
3352 | case clang::Type::LValueReference: |
3353 | if (pointee_type) |
3354 | pointee_type->SetCompilerType( |
3355 | this, llvm::cast<clang::LValueReferenceType>(qual_type) |
3356 | ->desugar() |
3357 | .getAsOpaquePtr()); |
3358 | return true; |
3359 | case clang::Type::RValueReference: |
3360 | if (pointee_type) |
3361 | pointee_type->SetCompilerType( |
3362 | this, llvm::cast<clang::RValueReferenceType>(qual_type) |
3363 | ->desugar() |
3364 | .getAsOpaquePtr()); |
3365 | return true; |
3366 | default: |
3367 | break; |
3368 | } |
3369 | } |
3370 | if (pointee_type) |
3371 | pointee_type->Clear(); |
3372 | return false; |
3373 | } |
3374 | |
3375 | bool TypeSystemClang::IsReferenceType(lldb::opaque_compiler_type_t type, |
3376 | CompilerType *pointee_type, |
3377 | bool *is_rvalue) { |
3378 | if (type) { |
3379 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
3380 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3381 | |
3382 | switch (type_class) { |
3383 | case clang::Type::LValueReference: |
3384 | if (pointee_type) |
3385 | pointee_type->SetCompilerType( |
3386 | this, llvm::cast<clang::LValueReferenceType>(qual_type) |
3387 | ->desugar() |
3388 | .getAsOpaquePtr()); |
3389 | if (is_rvalue) |
3390 | *is_rvalue = false; |
3391 | return true; |
3392 | case clang::Type::RValueReference: |
3393 | if (pointee_type) |
3394 | pointee_type->SetCompilerType( |
3395 | this, llvm::cast<clang::RValueReferenceType>(qual_type) |
3396 | ->desugar() |
3397 | .getAsOpaquePtr()); |
3398 | if (is_rvalue) |
3399 | *is_rvalue = true; |
3400 | return true; |
3401 | |
3402 | default: |
3403 | break; |
3404 | } |
3405 | } |
3406 | if (pointee_type) |
3407 | pointee_type->Clear(); |
3408 | return false; |
3409 | } |
3410 | |
3411 | bool TypeSystemClang::IsFloatingPointType(lldb::opaque_compiler_type_t type, |
3412 | uint32_t &count, bool &is_complex) { |
3413 | if (type) { |
3414 | clang::QualType qual_type(GetCanonicalQualType(type)); |
3415 | |
3416 | if (const clang::BuiltinType *BT = llvm::dyn_cast<clang::BuiltinType>( |
3417 | qual_type->getCanonicalTypeInternal())) { |
3418 | clang::BuiltinType::Kind kind = BT->getKind(); |
3419 | if (kind >= clang::BuiltinType::Float && |
3420 | kind <= clang::BuiltinType::LongDouble) { |
3421 | count = 1; |
3422 | is_complex = false; |
3423 | return true; |
3424 | } |
3425 | } else if (const clang::ComplexType *CT = |
3426 | llvm::dyn_cast<clang::ComplexType>( |
3427 | qual_type->getCanonicalTypeInternal())) { |
3428 | if (IsFloatingPointType(CT->getElementType().getAsOpaquePtr(), count, |
3429 | is_complex)) { |
3430 | count = 2; |
3431 | is_complex = true; |
3432 | return true; |
3433 | } |
3434 | } else if (const clang::VectorType *VT = llvm::dyn_cast<clang::VectorType>( |
3435 | qual_type->getCanonicalTypeInternal())) { |
3436 | if (IsFloatingPointType(VT->getElementType().getAsOpaquePtr(), count, |
3437 | is_complex)) { |
3438 | count = VT->getNumElements(); |
3439 | is_complex = false; |
3440 | return true; |
3441 | } |
3442 | } |
3443 | } |
3444 | count = 0; |
3445 | is_complex = false; |
3446 | return false; |
3447 | } |
3448 | |
3449 | bool TypeSystemClang::IsDefined(lldb::opaque_compiler_type_t type) { |
3450 | if (!type) |
3451 | return false; |
3452 | |
3453 | clang::QualType qual_type(GetQualType(type)); |
3454 | const clang::TagType *tag_type = |
3455 | llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr()); |
3456 | if (tag_type) { |
3457 | clang::TagDecl *tag_decl = tag_type->getDecl(); |
3458 | if (tag_decl) |
3459 | return tag_decl->isCompleteDefinition(); |
3460 | return false; |
3461 | } else { |
3462 | const clang::ObjCObjectType *objc_class_type = |
3463 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); |
3464 | if (objc_class_type) { |
3465 | clang::ObjCInterfaceDecl *class_interface_decl = |
3466 | objc_class_type->getInterface(); |
3467 | if (class_interface_decl) |
3468 | return class_interface_decl->getDefinition() != nullptr; |
3469 | return false; |
3470 | } |
3471 | } |
3472 | return true; |
3473 | } |
3474 | |
3475 | bool TypeSystemClang::IsObjCClassType(const CompilerType &type) { |
3476 | if (ClangUtil::IsClangType(type)) { |
3477 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); |
3478 | |
3479 | const clang::ObjCObjectPointerType *obj_pointer_type = |
3480 | llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type); |
3481 | |
3482 | if (obj_pointer_type) |
3483 | return obj_pointer_type->isObjCClassType(); |
3484 | } |
3485 | return false; |
3486 | } |
3487 | |
3488 | bool TypeSystemClang::IsObjCObjectOrInterfaceType(const CompilerType &type) { |
3489 | if (ClangUtil::IsClangType(type)) |
3490 | return ClangUtil::GetCanonicalQualType(type)->isObjCObjectOrInterfaceType(); |
3491 | return false; |
3492 | } |
3493 | |
3494 | bool TypeSystemClang::IsClassType(lldb::opaque_compiler_type_t type) { |
3495 | if (!type) |
3496 | return false; |
3497 | clang::QualType qual_type(GetCanonicalQualType(type)); |
3498 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3499 | return (type_class == clang::Type::Record); |
3500 | } |
3501 | |
3502 | bool TypeSystemClang::IsEnumType(lldb::opaque_compiler_type_t type) { |
3503 | if (!type) |
3504 | return false; |
3505 | clang::QualType qual_type(GetCanonicalQualType(type)); |
3506 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3507 | return (type_class == clang::Type::Enum); |
3508 | } |
3509 | |
3510 | bool TypeSystemClang::IsPolymorphicClass(lldb::opaque_compiler_type_t type) { |
3511 | if (type) { |
3512 | clang::QualType qual_type(GetCanonicalQualType(type)); |
3513 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3514 | switch (type_class) { |
3515 | case clang::Type::Record: |
3516 | if (GetCompleteType(type)) { |
3517 | const clang::RecordType *record_type = |
3518 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
3519 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
3520 | if (record_decl) { |
3521 | const clang::CXXRecordDecl *cxx_record_decl = |
3522 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
3523 | if (cxx_record_decl) |
3524 | return cxx_record_decl->isPolymorphic(); |
3525 | } |
3526 | } |
3527 | break; |
3528 | |
3529 | default: |
3530 | break; |
3531 | } |
3532 | } |
3533 | return false; |
3534 | } |
3535 | |
3536 | bool TypeSystemClang::IsPossibleDynamicType(lldb::opaque_compiler_type_t type, |
3537 | CompilerType *dynamic_pointee_type, |
3538 | bool check_cplusplus, |
3539 | bool check_objc) { |
3540 | clang::QualType pointee_qual_type; |
3541 | if (type) { |
3542 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
3543 | bool success = false; |
3544 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3545 | switch (type_class) { |
3546 | case clang::Type::Builtin: |
3547 | if (check_objc && |
3548 | llvm::cast<clang::BuiltinType>(qual_type)->getKind() == |
3549 | clang::BuiltinType::ObjCId) { |
3550 | if (dynamic_pointee_type) |
3551 | dynamic_pointee_type->SetCompilerType(this, type); |
3552 | return true; |
3553 | } |
3554 | break; |
3555 | |
3556 | case clang::Type::ObjCObjectPointer: |
3557 | if (check_objc) { |
3558 | if (const auto *objc_pointee_type = |
3559 | qual_type->getPointeeType().getTypePtrOrNull()) { |
3560 | if (const auto *objc_object_type = |
3561 | llvm::dyn_cast_or_null<clang::ObjCObjectType>( |
3562 | objc_pointee_type)) { |
3563 | if (objc_object_type->isObjCClass()) |
3564 | return false; |
3565 | } |
3566 | } |
3567 | if (dynamic_pointee_type) |
3568 | dynamic_pointee_type->SetCompilerType( |
3569 | this, llvm::cast<clang::ObjCObjectPointerType>(qual_type) |
3570 | ->getPointeeType() |
3571 | .getAsOpaquePtr()); |
3572 | return true; |
3573 | } |
3574 | break; |
3575 | |
3576 | case clang::Type::Pointer: |
3577 | pointee_qual_type = |
3578 | llvm::cast<clang::PointerType>(qual_type)->getPointeeType(); |
3579 | success = true; |
3580 | break; |
3581 | |
3582 | case clang::Type::LValueReference: |
3583 | case clang::Type::RValueReference: |
3584 | pointee_qual_type = |
3585 | llvm::cast<clang::ReferenceType>(qual_type)->getPointeeType(); |
3586 | success = true; |
3587 | break; |
3588 | |
3589 | default: |
3590 | break; |
3591 | } |
3592 | |
3593 | if (success) { |
3594 | // Check to make sure what we are pointing too is a possible dynamic C++ |
3595 | // type We currently accept any "void *" (in case we have a class that |
3596 | // has been watered down to an opaque pointer) and virtual C++ classes. |
3597 | const clang::Type::TypeClass pointee_type_class = |
3598 | pointee_qual_type.getCanonicalType()->getTypeClass(); |
3599 | switch (pointee_type_class) { |
3600 | case clang::Type::Builtin: |
3601 | switch (llvm::cast<clang::BuiltinType>(pointee_qual_type)->getKind()) { |
3602 | case clang::BuiltinType::UnknownAny: |
3603 | case clang::BuiltinType::Void: |
3604 | if (dynamic_pointee_type) |
3605 | dynamic_pointee_type->SetCompilerType( |
3606 | this, pointee_qual_type.getAsOpaquePtr()); |
3607 | return true; |
3608 | default: |
3609 | break; |
3610 | } |
3611 | break; |
3612 | |
3613 | case clang::Type::Record: |
3614 | if (check_cplusplus) { |
3615 | clang::CXXRecordDecl *cxx_record_decl = |
3616 | pointee_qual_type->getAsCXXRecordDecl(); |
3617 | if (cxx_record_decl) { |
3618 | bool is_complete = cxx_record_decl->isCompleteDefinition(); |
3619 | |
3620 | if (is_complete) |
3621 | success = cxx_record_decl->isDynamicClass(); |
3622 | else { |
3623 | ClangASTMetadata *metadata = GetMetadata(cxx_record_decl); |
3624 | if (metadata) |
3625 | success = metadata->GetIsDynamicCXXType(); |
3626 | else { |
3627 | is_complete = GetType(pointee_qual_type).GetCompleteType(); |
3628 | if (is_complete) |
3629 | success = cxx_record_decl->isDynamicClass(); |
3630 | else |
3631 | success = false; |
3632 | } |
3633 | } |
3634 | |
3635 | if (success) { |
3636 | if (dynamic_pointee_type) |
3637 | dynamic_pointee_type->SetCompilerType( |
3638 | this, pointee_qual_type.getAsOpaquePtr()); |
3639 | return true; |
3640 | } |
3641 | } |
3642 | } |
3643 | break; |
3644 | |
3645 | case clang::Type::ObjCObject: |
3646 | case clang::Type::ObjCInterface: |
3647 | if (check_objc) { |
3648 | if (dynamic_pointee_type) |
3649 | dynamic_pointee_type->SetCompilerType( |
3650 | this, pointee_qual_type.getAsOpaquePtr()); |
3651 | return true; |
3652 | } |
3653 | break; |
3654 | |
3655 | default: |
3656 | break; |
3657 | } |
3658 | } |
3659 | } |
3660 | if (dynamic_pointee_type) |
3661 | dynamic_pointee_type->Clear(); |
3662 | return false; |
3663 | } |
3664 | |
3665 | bool TypeSystemClang::IsScalarType(lldb::opaque_compiler_type_t type) { |
3666 | if (!type) |
3667 | return false; |
3668 | |
3669 | return (GetTypeInfo(type, nullptr) & eTypeIsScalar) != 0; |
3670 | } |
3671 | |
3672 | bool TypeSystemClang::IsTypedefType(lldb::opaque_compiler_type_t type) { |
3673 | if (!type) |
3674 | return false; |
3675 | return RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}) |
3676 | ->getTypeClass() == clang::Type::Typedef; |
3677 | } |
3678 | |
3679 | bool TypeSystemClang::IsVoidType(lldb::opaque_compiler_type_t type) { |
3680 | if (!type) |
3681 | return false; |
3682 | return GetCanonicalQualType(type)->isVoidType(); |
3683 | } |
3684 | |
3685 | bool TypeSystemClang::CanPassInRegisters(const CompilerType &type) { |
3686 | if (auto *record_decl = |
3687 | TypeSystemClang::GetAsRecordDecl(type)) { |
3688 | return record_decl->canPassInRegisters(); |
3689 | } |
3690 | return false; |
3691 | } |
3692 | |
3693 | bool TypeSystemClang::SupportsLanguage(lldb::LanguageType language) { |
3694 | return TypeSystemClangSupportsLanguage(language); |
3695 | } |
3696 | |
3697 | Optional<std::string> |
3698 | TypeSystemClang::GetCXXClassName(const CompilerType &type) { |
3699 | if (!type) |
3700 | return llvm::None; |
3701 | |
3702 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); |
3703 | if (qual_type.isNull()) |
3704 | return llvm::None; |
3705 | |
3706 | clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); |
3707 | if (!cxx_record_decl) |
3708 | return llvm::None; |
3709 | |
3710 | return std::string(cxx_record_decl->getIdentifier()->getNameStart()); |
3711 | } |
3712 | |
3713 | bool TypeSystemClang::IsCXXClassType(const CompilerType &type) { |
3714 | if (!type) |
3715 | return false; |
3716 | |
3717 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); |
3718 | return !qual_type.isNull() && qual_type->getAsCXXRecordDecl() != nullptr; |
3719 | } |
3720 | |
3721 | bool TypeSystemClang::IsBeingDefined(lldb::opaque_compiler_type_t type) { |
3722 | if (!type) |
3723 | return false; |
3724 | clang::QualType qual_type(GetCanonicalQualType(type)); |
3725 | const clang::TagType *tag_type = llvm::dyn_cast<clang::TagType>(qual_type); |
3726 | if (tag_type) |
3727 | return tag_type->isBeingDefined(); |
3728 | return false; |
3729 | } |
3730 | |
3731 | bool TypeSystemClang::IsObjCObjectPointerType(const CompilerType &type, |
3732 | CompilerType *class_type_ptr) { |
3733 | if (!ClangUtil::IsClangType(type)) |
3734 | return false; |
3735 | |
3736 | clang::QualType qual_type(ClangUtil::GetCanonicalQualType(type)); |
3737 | |
3738 | if (!qual_type.isNull() && qual_type->isObjCObjectPointerType()) { |
3739 | if (class_type_ptr) { |
3740 | if (!qual_type->isObjCClassType() && !qual_type->isObjCIdType()) { |
3741 | const clang::ObjCObjectPointerType *obj_pointer_type = |
3742 | llvm::dyn_cast<clang::ObjCObjectPointerType>(qual_type); |
3743 | if (obj_pointer_type == nullptr) |
3744 | class_type_ptr->Clear(); |
3745 | else |
3746 | class_type_ptr->SetCompilerType( |
3747 | type.GetTypeSystem(), |
3748 | clang::QualType(obj_pointer_type->getInterfaceType(), 0) |
3749 | .getAsOpaquePtr()); |
3750 | } |
3751 | } |
3752 | return true; |
3753 | } |
3754 | if (class_type_ptr) |
3755 | class_type_ptr->Clear(); |
3756 | return false; |
3757 | } |
3758 | |
3759 | // Type Completion |
3760 | |
3761 | bool TypeSystemClang::GetCompleteType(lldb::opaque_compiler_type_t type) { |
3762 | if (!type) |
3763 | return false; |
3764 | const bool allow_completion = true; |
3765 | return GetCompleteQualType(&getASTContext(), GetQualType(type), |
3766 | allow_completion); |
3767 | } |
3768 | |
3769 | ConstString TypeSystemClang::GetTypeName(lldb::opaque_compiler_type_t type) { |
3770 | if (!type) |
3771 | return ConstString(); |
3772 | |
3773 | clang::QualType qual_type(GetQualType(type)); |
3774 | |
3775 | // Remove certain type sugar from the name. Sugar such as elaborated types |
3776 | // or template types which only serve to improve diagnostics shouldn't |
3777 | // act as their own types from the user's perspective (e.g., formatter |
3778 | // shouldn't format a variable differently depending on how the ser has |
3779 | // specified the type. '::Type' and 'Type' should behave the same). |
3780 | // Typedefs and atomic derived types are not removed as they are actually |
3781 | // useful for identifiying specific types. |
3782 | qual_type = RemoveWrappingTypes(qual_type, |
3783 | {clang::Type::Typedef, clang::Type::Atomic}); |
3784 | |
3785 | // For a typedef just return the qualified name. |
3786 | if (const auto *typedef_type = qual_type->getAs<clang::TypedefType>()) { |
3787 | const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); |
3788 | return ConstString(GetTypeNameForDecl(typedef_decl)); |
3789 | } |
3790 | |
3791 | return ConstString(qual_type.getAsString(GetTypePrintingPolicy())); |
3792 | } |
3793 | |
3794 | ConstString |
3795 | TypeSystemClang::GetDisplayTypeName(lldb::opaque_compiler_type_t type) { |
3796 | if (!type) |
3797 | return ConstString(); |
3798 | |
3799 | clang::QualType qual_type(GetQualType(type)); |
3800 | clang::PrintingPolicy printing_policy(getASTContext().getPrintingPolicy()); |
3801 | printing_policy.SuppressTagKeyword = true; |
3802 | printing_policy.SuppressScope = false; |
3803 | printing_policy.SuppressUnwrittenScope = true; |
3804 | printing_policy.SuppressInlineNamespace = true; |
3805 | return ConstString(qual_type.getAsString(printing_policy)); |
3806 | } |
3807 | |
3808 | uint32_t |
3809 | TypeSystemClang::GetTypeInfo(lldb::opaque_compiler_type_t type, |
3810 | CompilerType *pointee_or_element_clang_type) { |
3811 | if (!type) |
3812 | return 0; |
3813 | |
3814 | if (pointee_or_element_clang_type) |
3815 | pointee_or_element_clang_type->Clear(); |
3816 | |
3817 | clang::QualType qual_type = |
3818 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}); |
3819 | |
3820 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
3821 | switch (type_class) { |
3822 | case clang::Type::Attributed: |
3823 | return GetTypeInfo(qual_type->castAs<clang::AttributedType>() |
3824 | ->getModifiedType() |
3825 | .getAsOpaquePtr(), |
3826 | pointee_or_element_clang_type); |
3827 | case clang::Type::Builtin: { |
3828 | const clang::BuiltinType *builtin_type = |
3829 | llvm::cast<clang::BuiltinType>(qual_type->getCanonicalTypeInternal()); |
3830 | |
3831 | uint32_t builtin_type_flags = eTypeIsBuiltIn | eTypeHasValue; |
3832 | switch (builtin_type->getKind()) { |
3833 | case clang::BuiltinType::ObjCId: |
3834 | case clang::BuiltinType::ObjCClass: |
3835 | if (pointee_or_element_clang_type) |
3836 | pointee_or_element_clang_type->SetCompilerType( |
3837 | this, getASTContext().ObjCBuiltinClassTy.getAsOpaquePtr()); |
3838 | builtin_type_flags |= eTypeIsPointer | eTypeIsObjC; |
3839 | break; |
3840 | |
3841 | case clang::BuiltinType::ObjCSel: |
3842 | if (pointee_or_element_clang_type) |
3843 | pointee_or_element_clang_type->SetCompilerType( |
3844 | this, getASTContext().CharTy.getAsOpaquePtr()); |
3845 | builtin_type_flags |= eTypeIsPointer | eTypeIsObjC; |
3846 | break; |
3847 | |
3848 | case clang::BuiltinType::Bool: |
3849 | case clang::BuiltinType::Char_U: |
3850 | case clang::BuiltinType::UChar: |
3851 | case clang::BuiltinType::WChar_U: |
3852 | case clang::BuiltinType::Char16: |
3853 | case clang::BuiltinType::Char32: |
3854 | case clang::BuiltinType::UShort: |
3855 | case clang::BuiltinType::UInt: |
3856 | case clang::BuiltinType::ULong: |
3857 | case clang::BuiltinType::ULongLong: |
3858 | case clang::BuiltinType::UInt128: |
3859 | case clang::BuiltinType::Char_S: |
3860 | case clang::BuiltinType::SChar: |
3861 | case clang::BuiltinType::WChar_S: |
3862 | case clang::BuiltinType::Short: |
3863 | case clang::BuiltinType::Int: |
3864 | case clang::BuiltinType::Long: |
3865 | case clang::BuiltinType::LongLong: |
3866 | case clang::BuiltinType::Int128: |
3867 | case clang::BuiltinType::Float: |
3868 | case clang::BuiltinType::Double: |
3869 | case clang::BuiltinType::LongDouble: |
3870 | builtin_type_flags |= eTypeIsScalar; |
3871 | if (builtin_type->isInteger()) { |
3872 | builtin_type_flags |= eTypeIsInteger; |
3873 | if (builtin_type->isSignedInteger()) |
3874 | builtin_type_flags |= eTypeIsSigned; |
3875 | } else if (builtin_type->isFloatingPoint()) |
3876 | builtin_type_flags |= eTypeIsFloat; |
3877 | break; |
3878 | default: |
3879 | break; |
3880 | } |
3881 | return builtin_type_flags; |
3882 | } |
3883 | |
3884 | case clang::Type::BlockPointer: |
3885 | if (pointee_or_element_clang_type) |
3886 | pointee_or_element_clang_type->SetCompilerType( |
3887 | this, qual_type->getPointeeType().getAsOpaquePtr()); |
3888 | return eTypeIsPointer | eTypeHasChildren | eTypeIsBlock; |
3889 | |
3890 | case clang::Type::Complex: { |
3891 | uint32_t complex_type_flags = |
3892 | eTypeIsBuiltIn | eTypeHasValue | eTypeIsComplex; |
3893 | const clang::ComplexType *complex_type = llvm::dyn_cast<clang::ComplexType>( |
3894 | qual_type->getCanonicalTypeInternal()); |
3895 | if (complex_type) { |
3896 | clang::QualType complex_element_type(complex_type->getElementType()); |
3897 | if (complex_element_type->isIntegerType()) |
3898 | complex_type_flags |= eTypeIsFloat; |
3899 | else if (complex_element_type->isFloatingType()) |
3900 | complex_type_flags |= eTypeIsInteger; |
3901 | } |
3902 | return complex_type_flags; |
3903 | } break; |
3904 | |
3905 | case clang::Type::ConstantArray: |
3906 | case clang::Type::DependentSizedArray: |
3907 | case clang::Type::IncompleteArray: |
3908 | case clang::Type::VariableArray: |
3909 | if (pointee_or_element_clang_type) |
3910 | pointee_or_element_clang_type->SetCompilerType( |
3911 | this, llvm::cast<clang::ArrayType>(qual_type.getTypePtr()) |
3912 | ->getElementType() |
3913 | .getAsOpaquePtr()); |
3914 | return eTypeHasChildren | eTypeIsArray; |
3915 | |
3916 | case clang::Type::DependentName: |
3917 | return 0; |
3918 | case clang::Type::DependentSizedExtVector: |
3919 | return eTypeHasChildren | eTypeIsVector; |
3920 | case clang::Type::DependentTemplateSpecialization: |
3921 | return eTypeIsTemplate; |
3922 | |
3923 | case clang::Type::Enum: |
3924 | if (pointee_or_element_clang_type) |
3925 | pointee_or_element_clang_type->SetCompilerType( |
3926 | this, llvm::cast<clang::EnumType>(qual_type) |
3927 | ->getDecl() |
3928 | ->getIntegerType() |
3929 | .getAsOpaquePtr()); |
3930 | return eTypeIsEnumeration | eTypeHasValue; |
3931 | |
3932 | case clang::Type::FunctionProto: |
3933 | return eTypeIsFuncPrototype | eTypeHasValue; |
3934 | case clang::Type::FunctionNoProto: |
3935 | return eTypeIsFuncPrototype | eTypeHasValue; |
3936 | case clang::Type::InjectedClassName: |
3937 | return 0; |
3938 | |
3939 | case clang::Type::LValueReference: |
3940 | case clang::Type::RValueReference: |
3941 | if (pointee_or_element_clang_type) |
3942 | pointee_or_element_clang_type->SetCompilerType( |
3943 | this, llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()) |
3944 | ->getPointeeType() |
3945 | .getAsOpaquePtr()); |
3946 | return eTypeHasChildren | eTypeIsReference | eTypeHasValue; |
3947 | |
3948 | case clang::Type::MemberPointer: |
3949 | return eTypeIsPointer | eTypeIsMember | eTypeHasValue; |
3950 | |
3951 | case clang::Type::ObjCObjectPointer: |
3952 | if (pointee_or_element_clang_type) |
3953 | pointee_or_element_clang_type->SetCompilerType( |
3954 | this, qual_type->getPointeeType().getAsOpaquePtr()); |
3955 | return eTypeHasChildren | eTypeIsObjC | eTypeIsClass | eTypeIsPointer | |
3956 | eTypeHasValue; |
3957 | |
3958 | case clang::Type::ObjCObject: |
3959 | return eTypeHasChildren | eTypeIsObjC | eTypeIsClass; |
3960 | case clang::Type::ObjCInterface: |
3961 | return eTypeHasChildren | eTypeIsObjC | eTypeIsClass; |
3962 | |
3963 | case clang::Type::Pointer: |
3964 | if (pointee_or_element_clang_type) |
3965 | pointee_or_element_clang_type->SetCompilerType( |
3966 | this, qual_type->getPointeeType().getAsOpaquePtr()); |
3967 | return eTypeHasChildren | eTypeIsPointer | eTypeHasValue; |
3968 | |
3969 | case clang::Type::Record: |
3970 | if (qual_type->getAsCXXRecordDecl()) |
3971 | return eTypeHasChildren | eTypeIsClass | eTypeIsCPlusPlus; |
3972 | else |
3973 | return eTypeHasChildren | eTypeIsStructUnion; |
3974 | break; |
3975 | case clang::Type::SubstTemplateTypeParm: |
3976 | return eTypeIsTemplate; |
3977 | case clang::Type::TemplateTypeParm: |
3978 | return eTypeIsTemplate; |
3979 | case clang::Type::TemplateSpecialization: |
3980 | return eTypeIsTemplate; |
3981 | |
3982 | case clang::Type::Typedef: |
3983 | return eTypeIsTypedef | GetType(llvm::cast<clang::TypedefType>(qual_type) |
3984 | ->getDecl() |
3985 | ->getUnderlyingType()) |
3986 | .GetTypeInfo(pointee_or_element_clang_type); |
3987 | case clang::Type::UnresolvedUsing: |
3988 | return 0; |
3989 | |
3990 | case clang::Type::ExtVector: |
3991 | case clang::Type::Vector: { |
3992 | uint32_t vector_type_flags = eTypeHasChildren | eTypeIsVector; |
3993 | const clang::VectorType *vector_type = llvm::dyn_cast<clang::VectorType>( |
3994 | qual_type->getCanonicalTypeInternal()); |
3995 | if (vector_type) { |
3996 | if (vector_type->isIntegerType()) |
3997 | vector_type_flags |= eTypeIsFloat; |
3998 | else if (vector_type->isFloatingType()) |
3999 | vector_type_flags |= eTypeIsInteger; |
4000 | } |
4001 | return vector_type_flags; |
4002 | } |
4003 | default: |
4004 | return 0; |
4005 | } |
4006 | return 0; |
4007 | } |
4008 | |
4009 | lldb::LanguageType |
4010 | TypeSystemClang::GetMinimumLanguage(lldb::opaque_compiler_type_t type) { |
4011 | if (!type) |
4012 | return lldb::eLanguageTypeC; |
4013 | |
4014 | // If the type is a reference, then resolve it to what it refers to first: |
4015 | clang::QualType qual_type(GetCanonicalQualType(type).getNonReferenceType()); |
4016 | if (qual_type->isAnyPointerType()) { |
4017 | if (qual_type->isObjCObjectPointerType()) |
4018 | return lldb::eLanguageTypeObjC; |
4019 | if (qual_type->getPointeeCXXRecordDecl()) |
4020 | return lldb::eLanguageTypeC_plus_plus; |
4021 | |
4022 | clang::QualType pointee_type(qual_type->getPointeeType()); |
4023 | if (pointee_type->getPointeeCXXRecordDecl()) |
4024 | return lldb::eLanguageTypeC_plus_plus; |
4025 | if (pointee_type->isObjCObjectOrInterfaceType()) |
4026 | return lldb::eLanguageTypeObjC; |
4027 | if (pointee_type->isObjCClassType()) |
4028 | return lldb::eLanguageTypeObjC; |
4029 | if (pointee_type.getTypePtr() == |
4030 | getASTContext().ObjCBuiltinIdTy.getTypePtr()) |
4031 | return lldb::eLanguageTypeObjC; |
4032 | } else { |
4033 | if (qual_type->isObjCObjectOrInterfaceType()) |
4034 | return lldb::eLanguageTypeObjC; |
4035 | if (qual_type->getAsCXXRecordDecl()) |
4036 | return lldb::eLanguageTypeC_plus_plus; |
4037 | switch (qual_type->getTypeClass()) { |
4038 | default: |
4039 | break; |
4040 | case clang::Type::Builtin: |
4041 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
4042 | default: |
4043 | case clang::BuiltinType::Void: |
4044 | case clang::BuiltinType::Bool: |
4045 | case clang::BuiltinType::Char_U: |
4046 | case clang::BuiltinType::UChar: |
4047 | case clang::BuiltinType::WChar_U: |
4048 | case clang::BuiltinType::Char16: |
4049 | case clang::BuiltinType::Char32: |
4050 | case clang::BuiltinType::UShort: |
4051 | case clang::BuiltinType::UInt: |
4052 | case clang::BuiltinType::ULong: |
4053 | case clang::BuiltinType::ULongLong: |
4054 | case clang::BuiltinType::UInt128: |
4055 | case clang::BuiltinType::Char_S: |
4056 | case clang::BuiltinType::SChar: |
4057 | case clang::BuiltinType::WChar_S: |
4058 | case clang::BuiltinType::Short: |
4059 | case clang::BuiltinType::Int: |
4060 | case clang::BuiltinType::Long: |
4061 | case clang::BuiltinType::LongLong: |
4062 | case clang::BuiltinType::Int128: |
4063 | case clang::BuiltinType::Float: |
4064 | case clang::BuiltinType::Double: |
4065 | case clang::BuiltinType::LongDouble: |
4066 | break; |
4067 | |
4068 | case clang::BuiltinType::NullPtr: |
4069 | return eLanguageTypeC_plus_plus; |
4070 | |
4071 | case clang::BuiltinType::ObjCId: |
4072 | case clang::BuiltinType::ObjCClass: |
4073 | case clang::BuiltinType::ObjCSel: |
4074 | return eLanguageTypeObjC; |
4075 | |
4076 | case clang::BuiltinType::Dependent: |
4077 | case clang::BuiltinType::Overload: |
4078 | case clang::BuiltinType::BoundMember: |
4079 | case clang::BuiltinType::UnknownAny: |
4080 | break; |
4081 | } |
4082 | break; |
4083 | case clang::Type::Typedef: |
4084 | return GetType(llvm::cast<clang::TypedefType>(qual_type) |
4085 | ->getDecl() |
4086 | ->getUnderlyingType()) |
4087 | .GetMinimumLanguage(); |
4088 | } |
4089 | } |
4090 | return lldb::eLanguageTypeC; |
4091 | } |
4092 | |
4093 | lldb::TypeClass |
4094 | TypeSystemClang::GetTypeClass(lldb::opaque_compiler_type_t type) { |
4095 | if (!type) |
4096 | return lldb::eTypeClassInvalid; |
4097 | |
4098 | clang::QualType qual_type = |
4099 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}); |
4100 | |
4101 | switch (qual_type->getTypeClass()) { |
4102 | case clang::Type::Atomic: |
4103 | case clang::Type::Auto: |
4104 | case clang::Type::Decltype: |
4105 | case clang::Type::Elaborated: |
4106 | case clang::Type::Paren: |
4107 | case clang::Type::TypeOf: |
4108 | case clang::Type::TypeOfExpr: |
4109 | case clang::Type::Using: |
4110 | llvm_unreachable("Handled in RemoveWrappingTypes!")::llvm::llvm_unreachable_internal("Handled in RemoveWrappingTypes!" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 4110); |
4111 | case clang::Type::UnaryTransform: |
4112 | break; |
4113 | case clang::Type::FunctionNoProto: |
4114 | return lldb::eTypeClassFunction; |
4115 | case clang::Type::FunctionProto: |
4116 | return lldb::eTypeClassFunction; |
4117 | case clang::Type::IncompleteArray: |
4118 | return lldb::eTypeClassArray; |
4119 | case clang::Type::VariableArray: |
4120 | return lldb::eTypeClassArray; |
4121 | case clang::Type::ConstantArray: |
4122 | return lldb::eTypeClassArray; |
4123 | case clang::Type::DependentSizedArray: |
4124 | return lldb::eTypeClassArray; |
4125 | case clang::Type::DependentSizedExtVector: |
4126 | return lldb::eTypeClassVector; |
4127 | case clang::Type::DependentVector: |
4128 | return lldb::eTypeClassVector; |
4129 | case clang::Type::ExtVector: |
4130 | return lldb::eTypeClassVector; |
4131 | case clang::Type::Vector: |
4132 | return lldb::eTypeClassVector; |
4133 | case clang::Type::Builtin: |
4134 | // Ext-Int is just an integer type. |
4135 | case clang::Type::BitInt: |
4136 | case clang::Type::DependentBitInt: |
4137 | return lldb::eTypeClassBuiltin; |
4138 | case clang::Type::ObjCObjectPointer: |
4139 | return lldb::eTypeClassObjCObjectPointer; |
4140 | case clang::Type::BlockPointer: |
4141 | return lldb::eTypeClassBlockPointer; |
4142 | case clang::Type::Pointer: |
4143 | return lldb::eTypeClassPointer; |
4144 | case clang::Type::LValueReference: |
4145 | return lldb::eTypeClassReference; |
4146 | case clang::Type::RValueReference: |
4147 | return lldb::eTypeClassReference; |
4148 | case clang::Type::MemberPointer: |
4149 | return lldb::eTypeClassMemberPointer; |
4150 | case clang::Type::Complex: |
4151 | if (qual_type->isComplexType()) |
4152 | return lldb::eTypeClassComplexFloat; |
4153 | else |
4154 | return lldb::eTypeClassComplexInteger; |
4155 | case clang::Type::ObjCObject: |
4156 | return lldb::eTypeClassObjCObject; |
4157 | case clang::Type::ObjCInterface: |
4158 | return lldb::eTypeClassObjCInterface; |
4159 | case clang::Type::Record: { |
4160 | const clang::RecordType *record_type = |
4161 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
4162 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
4163 | if (record_decl->isUnion()) |
4164 | return lldb::eTypeClassUnion; |
4165 | else if (record_decl->isStruct()) |
4166 | return lldb::eTypeClassStruct; |
4167 | else |
4168 | return lldb::eTypeClassClass; |
4169 | } break; |
4170 | case clang::Type::Enum: |
4171 | return lldb::eTypeClassEnumeration; |
4172 | case clang::Type::Typedef: |
4173 | return lldb::eTypeClassTypedef; |
4174 | case clang::Type::UnresolvedUsing: |
4175 | break; |
4176 | |
4177 | case clang::Type::Attributed: |
4178 | case clang::Type::BTFTagAttributed: |
4179 | break; |
4180 | case clang::Type::TemplateTypeParm: |
4181 | break; |
4182 | case clang::Type::SubstTemplateTypeParm: |
4183 | break; |
4184 | case clang::Type::SubstTemplateTypeParmPack: |
4185 | break; |
4186 | case clang::Type::InjectedClassName: |
4187 | break; |
4188 | case clang::Type::DependentName: |
4189 | break; |
4190 | case clang::Type::DependentTemplateSpecialization: |
4191 | break; |
4192 | case clang::Type::PackExpansion: |
4193 | break; |
4194 | |
4195 | case clang::Type::TemplateSpecialization: |
4196 | break; |
4197 | case clang::Type::DeducedTemplateSpecialization: |
4198 | break; |
4199 | case clang::Type::Pipe: |
4200 | break; |
4201 | |
4202 | // pointer type decayed from an array or function type. |
4203 | case clang::Type::Decayed: |
4204 | break; |
4205 | case clang::Type::Adjusted: |
4206 | break; |
4207 | case clang::Type::ObjCTypeParam: |
4208 | break; |
4209 | |
4210 | case clang::Type::DependentAddressSpace: |
4211 | break; |
4212 | case clang::Type::MacroQualified: |
4213 | break; |
4214 | |
4215 | // Matrix types that we're not sure how to display at the moment. |
4216 | case clang::Type::ConstantMatrix: |
4217 | case clang::Type::DependentSizedMatrix: |
4218 | break; |
4219 | } |
4220 | // We don't know hot to display this type... |
4221 | return lldb::eTypeClassOther; |
4222 | } |
4223 | |
4224 | unsigned TypeSystemClang::GetTypeQualifiers(lldb::opaque_compiler_type_t type) { |
4225 | if (type) |
4226 | return GetQualType(type).getQualifiers().getCVRQualifiers(); |
4227 | return 0; |
4228 | } |
4229 | |
4230 | // Creating related types |
4231 | |
4232 | CompilerType |
4233 | TypeSystemClang::GetArrayElementType(lldb::opaque_compiler_type_t type, |
4234 | ExecutionContextScope *exe_scope) { |
4235 | if (type) { |
4236 | clang::QualType qual_type(GetQualType(type)); |
4237 | |
4238 | const clang::Type *array_eletype = |
4239 | qual_type.getTypePtr()->getArrayElementTypeNoTypeQual(); |
4240 | |
4241 | if (!array_eletype) |
4242 | return CompilerType(); |
4243 | |
4244 | return GetType(clang::QualType(array_eletype, 0)); |
4245 | } |
4246 | return CompilerType(); |
4247 | } |
4248 | |
4249 | CompilerType TypeSystemClang::GetArrayType(lldb::opaque_compiler_type_t type, |
4250 | uint64_t size) { |
4251 | if (type) { |
4252 | clang::QualType qual_type(GetCanonicalQualType(type)); |
4253 | clang::ASTContext &ast_ctx = getASTContext(); |
4254 | if (size != 0) |
4255 | return GetType(ast_ctx.getConstantArrayType( |
4256 | qual_type, llvm::APInt(64, size), nullptr, |
4257 | clang::ArrayType::ArraySizeModifier::Normal, 0)); |
4258 | else |
4259 | return GetType(ast_ctx.getIncompleteArrayType( |
4260 | qual_type, clang::ArrayType::ArraySizeModifier::Normal, 0)); |
4261 | } |
4262 | |
4263 | return CompilerType(); |
4264 | } |
4265 | |
4266 | CompilerType |
4267 | TypeSystemClang::GetCanonicalType(lldb::opaque_compiler_type_t type) { |
4268 | if (type) |
4269 | return GetType(GetCanonicalQualType(type)); |
4270 | return CompilerType(); |
4271 | } |
4272 | |
4273 | static clang::QualType GetFullyUnqualifiedType_Impl(clang::ASTContext *ast, |
4274 | clang::QualType qual_type) { |
4275 | if (qual_type->isPointerType()) |
4276 | qual_type = ast->getPointerType( |
4277 | GetFullyUnqualifiedType_Impl(ast, qual_type->getPointeeType())); |
4278 | else if (const ConstantArrayType *arr = |
4279 | ast->getAsConstantArrayType(qual_type)) { |
4280 | qual_type = ast->getConstantArrayType( |
4281 | GetFullyUnqualifiedType_Impl(ast, arr->getElementType()), |
4282 | arr->getSize(), arr->getSizeExpr(), arr->getSizeModifier(), |
4283 | arr->getIndexTypeQualifiers().getAsOpaqueValue()); |
4284 | } else |
4285 | qual_type = qual_type.getUnqualifiedType(); |
4286 | qual_type.removeLocalConst(); |
4287 | qual_type.removeLocalRestrict(); |
4288 | qual_type.removeLocalVolatile(); |
4289 | return qual_type; |
4290 | } |
4291 | |
4292 | CompilerType |
4293 | TypeSystemClang::GetFullyUnqualifiedType(lldb::opaque_compiler_type_t type) { |
4294 | if (type) |
4295 | return GetType( |
4296 | GetFullyUnqualifiedType_Impl(&getASTContext(), GetQualType(type))); |
4297 | return CompilerType(); |
4298 | } |
4299 | |
4300 | CompilerType |
4301 | TypeSystemClang::GetEnumerationIntegerType(lldb::opaque_compiler_type_t type) { |
4302 | if (type) |
4303 | return GetEnumerationIntegerType(GetType(GetCanonicalQualType(type))); |
4304 | return CompilerType(); |
4305 | } |
4306 | |
4307 | int TypeSystemClang::GetFunctionArgumentCount( |
4308 | lldb::opaque_compiler_type_t type) { |
4309 | if (type) { |
4310 | const clang::FunctionProtoType *func = |
4311 | llvm::dyn_cast<clang::FunctionProtoType>(GetCanonicalQualType(type)); |
4312 | if (func) |
4313 | return func->getNumParams(); |
4314 | } |
4315 | return -1; |
4316 | } |
4317 | |
4318 | CompilerType TypeSystemClang::GetFunctionArgumentTypeAtIndex( |
4319 | lldb::opaque_compiler_type_t type, size_t idx) { |
4320 | if (type) { |
4321 | const clang::FunctionProtoType *func = |
4322 | llvm::dyn_cast<clang::FunctionProtoType>(GetQualType(type)); |
4323 | if (func) { |
4324 | const uint32_t num_args = func->getNumParams(); |
4325 | if (idx < num_args) |
4326 | return GetType(func->getParamType(idx)); |
4327 | } |
4328 | } |
4329 | return CompilerType(); |
4330 | } |
4331 | |
4332 | CompilerType |
4333 | TypeSystemClang::GetFunctionReturnType(lldb::opaque_compiler_type_t type) { |
4334 | if (type) { |
4335 | clang::QualType qual_type(GetQualType(type)); |
4336 | const clang::FunctionProtoType *func = |
4337 | llvm::dyn_cast<clang::FunctionProtoType>(qual_type.getTypePtr()); |
4338 | if (func) |
4339 | return GetType(func->getReturnType()); |
4340 | } |
4341 | return CompilerType(); |
4342 | } |
4343 | |
4344 | size_t |
4345 | TypeSystemClang::GetNumMemberFunctions(lldb::opaque_compiler_type_t type) { |
4346 | size_t num_functions = 0; |
4347 | if (type) { |
4348 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
4349 | switch (qual_type->getTypeClass()) { |
4350 | case clang::Type::Record: |
4351 | if (GetCompleteQualType(&getASTContext(), qual_type)) { |
4352 | const clang::RecordType *record_type = |
4353 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
4354 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
4355 | assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail ("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 4355, __extension__ __PRETTY_FUNCTION__)); |
4356 | const clang::CXXRecordDecl *cxx_record_decl = |
4357 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
4358 | if (cxx_record_decl) |
4359 | num_functions = std::distance(cxx_record_decl->method_begin(), |
4360 | cxx_record_decl->method_end()); |
4361 | } |
4362 | break; |
4363 | |
4364 | case clang::Type::ObjCObjectPointer: { |
4365 | const clang::ObjCObjectPointerType *objc_class_type = |
4366 | qual_type->castAs<clang::ObjCObjectPointerType>(); |
4367 | const clang::ObjCInterfaceType *objc_interface_type = |
4368 | objc_class_type->getInterfaceType(); |
4369 | if (objc_interface_type && |
4370 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( |
4371 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { |
4372 | clang::ObjCInterfaceDecl *class_interface_decl = |
4373 | objc_interface_type->getDecl(); |
4374 | if (class_interface_decl) { |
4375 | num_functions = std::distance(class_interface_decl->meth_begin(), |
4376 | class_interface_decl->meth_end()); |
4377 | } |
4378 | } |
4379 | break; |
4380 | } |
4381 | |
4382 | case clang::Type::ObjCObject: |
4383 | case clang::Type::ObjCInterface: |
4384 | if (GetCompleteType(type)) { |
4385 | const clang::ObjCObjectType *objc_class_type = |
4386 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
4387 | if (objc_class_type) { |
4388 | clang::ObjCInterfaceDecl *class_interface_decl = |
4389 | objc_class_type->getInterface(); |
4390 | if (class_interface_decl) |
4391 | num_functions = std::distance(class_interface_decl->meth_begin(), |
4392 | class_interface_decl->meth_end()); |
4393 | } |
4394 | } |
4395 | break; |
4396 | |
4397 | default: |
4398 | break; |
4399 | } |
4400 | } |
4401 | return num_functions; |
4402 | } |
4403 | |
4404 | TypeMemberFunctionImpl |
4405 | TypeSystemClang::GetMemberFunctionAtIndex(lldb::opaque_compiler_type_t type, |
4406 | size_t idx) { |
4407 | std::string name; |
4408 | MemberFunctionKind kind(MemberFunctionKind::eMemberFunctionKindUnknown); |
4409 | CompilerType clang_type; |
4410 | CompilerDecl clang_decl; |
4411 | if (type) { |
4412 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
4413 | switch (qual_type->getTypeClass()) { |
4414 | case clang::Type::Record: |
4415 | if (GetCompleteQualType(&getASTContext(), qual_type)) { |
4416 | const clang::RecordType *record_type = |
4417 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
4418 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
4419 | assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail ("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 4419, __extension__ __PRETTY_FUNCTION__)); |
4420 | const clang::CXXRecordDecl *cxx_record_decl = |
4421 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
4422 | if (cxx_record_decl) { |
4423 | auto method_iter = cxx_record_decl->method_begin(); |
4424 | auto method_end = cxx_record_decl->method_end(); |
4425 | if (idx < |
4426 | static_cast<size_t>(std::distance(method_iter, method_end))) { |
4427 | std::advance(method_iter, idx); |
4428 | clang::CXXMethodDecl *cxx_method_decl = |
4429 | method_iter->getCanonicalDecl(); |
4430 | if (cxx_method_decl) { |
4431 | name = cxx_method_decl->getDeclName().getAsString(); |
4432 | if (cxx_method_decl->isStatic()) |
4433 | kind = lldb::eMemberFunctionKindStaticMethod; |
4434 | else if (llvm::isa<clang::CXXConstructorDecl>(cxx_method_decl)) |
4435 | kind = lldb::eMemberFunctionKindConstructor; |
4436 | else if (llvm::isa<clang::CXXDestructorDecl>(cxx_method_decl)) |
4437 | kind = lldb::eMemberFunctionKindDestructor; |
4438 | else |
4439 | kind = lldb::eMemberFunctionKindInstanceMethod; |
4440 | clang_type = GetType(cxx_method_decl->getType()); |
4441 | clang_decl = GetCompilerDecl(cxx_method_decl); |
4442 | } |
4443 | } |
4444 | } |
4445 | } |
4446 | break; |
4447 | |
4448 | case clang::Type::ObjCObjectPointer: { |
4449 | const clang::ObjCObjectPointerType *objc_class_type = |
4450 | qual_type->castAs<clang::ObjCObjectPointerType>(); |
4451 | const clang::ObjCInterfaceType *objc_interface_type = |
4452 | objc_class_type->getInterfaceType(); |
4453 | if (objc_interface_type && |
4454 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( |
4455 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { |
4456 | clang::ObjCInterfaceDecl *class_interface_decl = |
4457 | objc_interface_type->getDecl(); |
4458 | if (class_interface_decl) { |
4459 | auto method_iter = class_interface_decl->meth_begin(); |
4460 | auto method_end = class_interface_decl->meth_end(); |
4461 | if (idx < |
4462 | static_cast<size_t>(std::distance(method_iter, method_end))) { |
4463 | std::advance(method_iter, idx); |
4464 | clang::ObjCMethodDecl *objc_method_decl = |
4465 | method_iter->getCanonicalDecl(); |
4466 | if (objc_method_decl) { |
4467 | clang_decl = GetCompilerDecl(objc_method_decl); |
4468 | name = objc_method_decl->getSelector().getAsString(); |
4469 | if (objc_method_decl->isClassMethod()) |
4470 | kind = lldb::eMemberFunctionKindStaticMethod; |
4471 | else |
4472 | kind = lldb::eMemberFunctionKindInstanceMethod; |
4473 | } |
4474 | } |
4475 | } |
4476 | } |
4477 | break; |
4478 | } |
4479 | |
4480 | case clang::Type::ObjCObject: |
4481 | case clang::Type::ObjCInterface: |
4482 | if (GetCompleteType(type)) { |
4483 | const clang::ObjCObjectType *objc_class_type = |
4484 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
4485 | if (objc_class_type) { |
4486 | clang::ObjCInterfaceDecl *class_interface_decl = |
4487 | objc_class_type->getInterface(); |
4488 | if (class_interface_decl) { |
4489 | auto method_iter = class_interface_decl->meth_begin(); |
4490 | auto method_end = class_interface_decl->meth_end(); |
4491 | if (idx < |
4492 | static_cast<size_t>(std::distance(method_iter, method_end))) { |
4493 | std::advance(method_iter, idx); |
4494 | clang::ObjCMethodDecl *objc_method_decl = |
4495 | method_iter->getCanonicalDecl(); |
4496 | if (objc_method_decl) { |
4497 | clang_decl = GetCompilerDecl(objc_method_decl); |
4498 | name = objc_method_decl->getSelector().getAsString(); |
4499 | if (objc_method_decl->isClassMethod()) |
4500 | kind = lldb::eMemberFunctionKindStaticMethod; |
4501 | else |
4502 | kind = lldb::eMemberFunctionKindInstanceMethod; |
4503 | } |
4504 | } |
4505 | } |
4506 | } |
4507 | } |
4508 | break; |
4509 | |
4510 | default: |
4511 | break; |
4512 | } |
4513 | } |
4514 | |
4515 | if (kind == eMemberFunctionKindUnknown) |
4516 | return TypeMemberFunctionImpl(); |
4517 | else |
4518 | return TypeMemberFunctionImpl(clang_type, clang_decl, name, kind); |
4519 | } |
4520 | |
4521 | CompilerType |
4522 | TypeSystemClang::GetNonReferenceType(lldb::opaque_compiler_type_t type) { |
4523 | if (type) |
4524 | return GetType(GetQualType(type).getNonReferenceType()); |
4525 | return CompilerType(); |
4526 | } |
4527 | |
4528 | CompilerType |
4529 | TypeSystemClang::GetPointeeType(lldb::opaque_compiler_type_t type) { |
4530 | if (type) { |
4531 | clang::QualType qual_type(GetQualType(type)); |
4532 | return GetType(qual_type.getTypePtr()->getPointeeType()); |
4533 | } |
4534 | return CompilerType(); |
4535 | } |
4536 | |
4537 | CompilerType |
4538 | TypeSystemClang::GetPointerType(lldb::opaque_compiler_type_t type) { |
4539 | if (type) { |
4540 | clang::QualType qual_type(GetQualType(type)); |
4541 | |
4542 | switch (qual_type.getDesugaredType(getASTContext())->getTypeClass()) { |
4543 | case clang::Type::ObjCObject: |
4544 | case clang::Type::ObjCInterface: |
4545 | return GetType(getASTContext().getObjCObjectPointerType(qual_type)); |
4546 | |
4547 | default: |
4548 | return GetType(getASTContext().getPointerType(qual_type)); |
4549 | } |
4550 | } |
4551 | return CompilerType(); |
4552 | } |
4553 | |
4554 | CompilerType |
4555 | TypeSystemClang::GetLValueReferenceType(lldb::opaque_compiler_type_t type) { |
4556 | if (type) |
4557 | return GetType(getASTContext().getLValueReferenceType(GetQualType(type))); |
4558 | else |
4559 | return CompilerType(); |
4560 | } |
4561 | |
4562 | CompilerType |
4563 | TypeSystemClang::GetRValueReferenceType(lldb::opaque_compiler_type_t type) { |
4564 | if (type) |
4565 | return GetType(getASTContext().getRValueReferenceType(GetQualType(type))); |
4566 | else |
4567 | return CompilerType(); |
4568 | } |
4569 | |
4570 | CompilerType TypeSystemClang::GetAtomicType(lldb::opaque_compiler_type_t type) { |
4571 | if (!type) |
4572 | return CompilerType(); |
4573 | return GetType(getASTContext().getAtomicType(GetQualType(type))); |
4574 | } |
4575 | |
4576 | CompilerType |
4577 | TypeSystemClang::AddConstModifier(lldb::opaque_compiler_type_t type) { |
4578 | if (type) { |
4579 | clang::QualType result(GetQualType(type)); |
4580 | result.addConst(); |
4581 | return GetType(result); |
4582 | } |
4583 | return CompilerType(); |
4584 | } |
4585 | |
4586 | CompilerType |
4587 | TypeSystemClang::AddVolatileModifier(lldb::opaque_compiler_type_t type) { |
4588 | if (type) { |
4589 | clang::QualType result(GetQualType(type)); |
4590 | result.addVolatile(); |
4591 | return GetType(result); |
4592 | } |
4593 | return CompilerType(); |
4594 | } |
4595 | |
4596 | CompilerType |
4597 | TypeSystemClang::AddRestrictModifier(lldb::opaque_compiler_type_t type) { |
4598 | if (type) { |
4599 | clang::QualType result(GetQualType(type)); |
4600 | result.addRestrict(); |
4601 | return GetType(result); |
4602 | } |
4603 | return CompilerType(); |
4604 | } |
4605 | |
4606 | CompilerType TypeSystemClang::CreateTypedef( |
4607 | lldb::opaque_compiler_type_t type, const char *typedef_name, |
4608 | const CompilerDeclContext &compiler_decl_ctx, uint32_t payload) { |
4609 | if (type && typedef_name && typedef_name[0]) { |
4610 | clang::ASTContext &clang_ast = getASTContext(); |
4611 | clang::QualType qual_type(GetQualType(type)); |
4612 | |
4613 | clang::DeclContext *decl_ctx = |
4614 | TypeSystemClang::DeclContextGetAsDeclContext(compiler_decl_ctx); |
4615 | if (!decl_ctx) |
4616 | decl_ctx = getASTContext().getTranslationUnitDecl(); |
4617 | |
4618 | clang::TypedefDecl *decl = |
4619 | clang::TypedefDecl::CreateDeserialized(clang_ast, 0); |
4620 | decl->setDeclContext(decl_ctx); |
4621 | decl->setDeclName(&clang_ast.Idents.get(typedef_name)); |
4622 | decl->setTypeSourceInfo(clang_ast.getTrivialTypeSourceInfo(qual_type)); |
4623 | decl_ctx->addDecl(decl); |
4624 | SetOwningModule(decl, TypePayloadClang(payload).GetOwningModule()); |
4625 | |
4626 | clang::TagDecl *tdecl = nullptr; |
4627 | if (!qual_type.isNull()) { |
4628 | if (const clang::RecordType *rt = qual_type->getAs<clang::RecordType>()) |
4629 | tdecl = rt->getDecl(); |
4630 | if (const clang::EnumType *et = qual_type->getAs<clang::EnumType>()) |
4631 | tdecl = et->getDecl(); |
4632 | } |
4633 | |
4634 | // Check whether this declaration is an anonymous struct, union, or enum, |
4635 | // hidden behind a typedef. If so, we try to check whether we have a |
4636 | // typedef tag to attach to the original record declaration |
4637 | if (tdecl && !tdecl->getIdentifier() && !tdecl->getTypedefNameForAnonDecl()) |
4638 | tdecl->setTypedefNameForAnonDecl(decl); |
4639 | |
4640 | decl->setAccess(clang::AS_public); // TODO respect proper access specifier |
4641 | |
4642 | // Get a uniqued clang::QualType for the typedef decl type |
4643 | return GetType(clang_ast.getTypedefType(decl)); |
4644 | } |
4645 | return CompilerType(); |
4646 | } |
4647 | |
4648 | CompilerType |
4649 | TypeSystemClang::GetTypedefedType(lldb::opaque_compiler_type_t type) { |
4650 | if (type) { |
4651 | const clang::TypedefType *typedef_type = llvm::dyn_cast<clang::TypedefType>( |
4652 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef})); |
4653 | if (typedef_type) |
4654 | return GetType(typedef_type->getDecl()->getUnderlyingType()); |
4655 | } |
4656 | return CompilerType(); |
4657 | } |
4658 | |
4659 | // Create related types using the current type's AST |
4660 | |
4661 | CompilerType TypeSystemClang::GetBasicTypeFromAST(lldb::BasicType basic_type) { |
4662 | return TypeSystemClang::GetBasicType(basic_type); |
4663 | } |
4664 | // Exploring the type |
4665 | |
4666 | const llvm::fltSemantics & |
4667 | TypeSystemClang::GetFloatTypeSemantics(size_t byte_size) { |
4668 | clang::ASTContext &ast = getASTContext(); |
4669 | const size_t bit_size = byte_size * 8; |
4670 | if (bit_size == ast.getTypeSize(ast.FloatTy)) |
4671 | return ast.getFloatTypeSemantics(ast.FloatTy); |
4672 | else if (bit_size == ast.getTypeSize(ast.DoubleTy)) |
4673 | return ast.getFloatTypeSemantics(ast.DoubleTy); |
4674 | else if (bit_size == ast.getTypeSize(ast.LongDoubleTy)) |
4675 | return ast.getFloatTypeSemantics(ast.LongDoubleTy); |
4676 | else if (bit_size == ast.getTypeSize(ast.HalfTy)) |
4677 | return ast.getFloatTypeSemantics(ast.HalfTy); |
4678 | return llvm::APFloatBase::Bogus(); |
4679 | } |
4680 | |
4681 | Optional<uint64_t> |
4682 | TypeSystemClang::GetBitSize(lldb::opaque_compiler_type_t type, |
4683 | ExecutionContextScope *exe_scope) { |
4684 | if (GetCompleteType(type)) { |
4685 | clang::QualType qual_type(GetCanonicalQualType(type)); |
4686 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
4687 | switch (type_class) { |
4688 | case clang::Type::Record: |
4689 | if (GetCompleteType(type)) |
4690 | return getASTContext().getTypeSize(qual_type); |
4691 | else |
4692 | return None; |
4693 | break; |
4694 | |
4695 | case clang::Type::ObjCInterface: |
4696 | case clang::Type::ObjCObject: { |
4697 | ExecutionContext exe_ctx(exe_scope); |
4698 | Process *process = exe_ctx.GetProcessPtr(); |
4699 | if (process) { |
4700 | ObjCLanguageRuntime *objc_runtime = ObjCLanguageRuntime::Get(*process); |
4701 | if (objc_runtime) { |
4702 | uint64_t bit_size = 0; |
4703 | if (objc_runtime->GetTypeBitSize(GetType(qual_type), bit_size)) |
4704 | return bit_size; |
4705 | } |
4706 | } else { |
4707 | static bool g_printed = false; |
4708 | if (!g_printed) { |
4709 | StreamString s; |
4710 | DumpTypeDescription(type, &s); |
4711 | |
4712 | llvm::outs() << "warning: trying to determine the size of type "; |
4713 | llvm::outs() << s.GetString() << "\n"; |
4714 | llvm::outs() << "without a valid ExecutionContext. this is not " |
4715 | "reliable. please file a bug against LLDB.\n"; |
4716 | llvm::outs() << "backtrace:\n"; |
4717 | llvm::sys::PrintStackTrace(llvm::outs()); |
4718 | llvm::outs() << "\n"; |
4719 | g_printed = true; |
4720 | } |
4721 | } |
4722 | } |
4723 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; |
4724 | default: |
4725 | const uint32_t bit_size = getASTContext().getTypeSize(qual_type); |
4726 | if (bit_size == 0) { |
4727 | if (qual_type->isIncompleteArrayType()) |
4728 | return getASTContext().getTypeSize( |
4729 | qual_type->getArrayElementTypeNoTypeQual() |
4730 | ->getCanonicalTypeUnqualified()); |
4731 | } |
4732 | if (qual_type->isObjCObjectOrInterfaceType()) |
4733 | return bit_size + |
4734 | getASTContext().getTypeSize(getASTContext().ObjCBuiltinClassTy); |
4735 | // Function types actually have a size of 0, that's not an error. |
4736 | if (qual_type->isFunctionProtoType()) |
4737 | return bit_size; |
4738 | if (bit_size) |
4739 | return bit_size; |
4740 | } |
4741 | } |
4742 | return None; |
4743 | } |
4744 | |
4745 | llvm::Optional<size_t> |
4746 | TypeSystemClang::GetTypeBitAlign(lldb::opaque_compiler_type_t type, |
4747 | ExecutionContextScope *exe_scope) { |
4748 | if (GetCompleteType(type)) |
4749 | return getASTContext().getTypeAlign(GetQualType(type)); |
4750 | return {}; |
4751 | } |
4752 | |
4753 | lldb::Encoding TypeSystemClang::GetEncoding(lldb::opaque_compiler_type_t type, |
4754 | uint64_t &count) { |
4755 | if (!type) |
4756 | return lldb::eEncodingInvalid; |
4757 | |
4758 | count = 1; |
4759 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
4760 | |
4761 | switch (qual_type->getTypeClass()) { |
4762 | case clang::Type::Atomic: |
4763 | case clang::Type::Auto: |
4764 | case clang::Type::Decltype: |
4765 | case clang::Type::Elaborated: |
4766 | case clang::Type::Paren: |
4767 | case clang::Type::Typedef: |
4768 | case clang::Type::TypeOf: |
4769 | case clang::Type::TypeOfExpr: |
4770 | case clang::Type::Using: |
4771 | llvm_unreachable("Handled in RemoveWrappingTypes!")::llvm::llvm_unreachable_internal("Handled in RemoveWrappingTypes!" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 4771); |
4772 | |
4773 | case clang::Type::UnaryTransform: |
4774 | break; |
4775 | |
4776 | case clang::Type::FunctionNoProto: |
4777 | case clang::Type::FunctionProto: |
4778 | break; |
4779 | |
4780 | case clang::Type::IncompleteArray: |
4781 | case clang::Type::VariableArray: |
4782 | break; |
4783 | |
4784 | case clang::Type::ConstantArray: |
4785 | break; |
4786 | |
4787 | case clang::Type::DependentVector: |
4788 | case clang::Type::ExtVector: |
4789 | case clang::Type::Vector: |
4790 | // TODO: Set this to more than one??? |
4791 | break; |
4792 | |
4793 | case clang::Type::BitInt: |
4794 | case clang::Type::DependentBitInt: |
4795 | return qual_type->isUnsignedIntegerType() ? lldb::eEncodingUint |
4796 | : lldb::eEncodingSint; |
4797 | |
4798 | case clang::Type::Builtin: |
4799 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
4800 | case clang::BuiltinType::Void: |
4801 | break; |
4802 | |
4803 | case clang::BuiltinType::Char_S: |
4804 | case clang::BuiltinType::SChar: |
4805 | case clang::BuiltinType::WChar_S: |
4806 | case clang::BuiltinType::Short: |
4807 | case clang::BuiltinType::Int: |
4808 | case clang::BuiltinType::Long: |
4809 | case clang::BuiltinType::LongLong: |
4810 | case clang::BuiltinType::Int128: |
4811 | return lldb::eEncodingSint; |
4812 | |
4813 | case clang::BuiltinType::Bool: |
4814 | case clang::BuiltinType::Char_U: |
4815 | case clang::BuiltinType::UChar: |
4816 | case clang::BuiltinType::WChar_U: |
4817 | case clang::BuiltinType::Char8: |
4818 | case clang::BuiltinType::Char16: |
4819 | case clang::BuiltinType::Char32: |
4820 | case clang::BuiltinType::UShort: |
4821 | case clang::BuiltinType::UInt: |
4822 | case clang::BuiltinType::ULong: |
4823 | case clang::BuiltinType::ULongLong: |
4824 | case clang::BuiltinType::UInt128: |
4825 | return lldb::eEncodingUint; |
4826 | |
4827 | // Fixed point types. Note that they are currently ignored. |
4828 | case clang::BuiltinType::ShortAccum: |
4829 | case clang::BuiltinType::Accum: |
4830 | case clang::BuiltinType::LongAccum: |
4831 | case clang::BuiltinType::UShortAccum: |
4832 | case clang::BuiltinType::UAccum: |
4833 | case clang::BuiltinType::ULongAccum: |
4834 | case clang::BuiltinType::ShortFract: |
4835 | case clang::BuiltinType::Fract: |
4836 | case clang::BuiltinType::LongFract: |
4837 | case clang::BuiltinType::UShortFract: |
4838 | case clang::BuiltinType::UFract: |
4839 | case clang::BuiltinType::ULongFract: |
4840 | case clang::BuiltinType::SatShortAccum: |
4841 | case clang::BuiltinType::SatAccum: |
4842 | case clang::BuiltinType::SatLongAccum: |
4843 | case clang::BuiltinType::SatUShortAccum: |
4844 | case clang::BuiltinType::SatUAccum: |
4845 | case clang::BuiltinType::SatULongAccum: |
4846 | case clang::BuiltinType::SatShortFract: |
4847 | case clang::BuiltinType::SatFract: |
4848 | case clang::BuiltinType::SatLongFract: |
4849 | case clang::BuiltinType::SatUShortFract: |
4850 | case clang::BuiltinType::SatUFract: |
4851 | case clang::BuiltinType::SatULongFract: |
4852 | break; |
4853 | |
4854 | case clang::BuiltinType::Half: |
4855 | case clang::BuiltinType::Float: |
4856 | case clang::BuiltinType::Float16: |
4857 | case clang::BuiltinType::Float128: |
4858 | case clang::BuiltinType::Double: |
4859 | case clang::BuiltinType::LongDouble: |
4860 | case clang::BuiltinType::BFloat16: |
4861 | case clang::BuiltinType::Ibm128: |
4862 | return lldb::eEncodingIEEE754; |
4863 | |
4864 | case clang::BuiltinType::ObjCClass: |
4865 | case clang::BuiltinType::ObjCId: |
4866 | case clang::BuiltinType::ObjCSel: |
4867 | return lldb::eEncodingUint; |
4868 | |
4869 | case clang::BuiltinType::NullPtr: |
4870 | return lldb::eEncodingUint; |
4871 | |
4872 | case clang::BuiltinType::Kind::ARCUnbridgedCast: |
4873 | case clang::BuiltinType::Kind::BoundMember: |
4874 | case clang::BuiltinType::Kind::BuiltinFn: |
4875 | case clang::BuiltinType::Kind::Dependent: |
4876 | case clang::BuiltinType::Kind::OCLClkEvent: |
4877 | case clang::BuiltinType::Kind::OCLEvent: |
4878 | case clang::BuiltinType::Kind::OCLImage1dRO: |
4879 | case clang::BuiltinType::Kind::OCLImage1dWO: |
4880 | case clang::BuiltinType::Kind::OCLImage1dRW: |
4881 | case clang::BuiltinType::Kind::OCLImage1dArrayRO: |
4882 | case clang::BuiltinType::Kind::OCLImage1dArrayWO: |
4883 | case clang::BuiltinType::Kind::OCLImage1dArrayRW: |
4884 | case clang::BuiltinType::Kind::OCLImage1dBufferRO: |
4885 | case clang::BuiltinType::Kind::OCLImage1dBufferWO: |
4886 | case clang::BuiltinType::Kind::OCLImage1dBufferRW: |
4887 | case clang::BuiltinType::Kind::OCLImage2dRO: |
4888 | case clang::BuiltinType::Kind::OCLImage2dWO: |
4889 | case clang::BuiltinType::Kind::OCLImage2dRW: |
4890 | case clang::BuiltinType::Kind::OCLImage2dArrayRO: |
4891 | case clang::BuiltinType::Kind::OCLImage2dArrayWO: |
4892 | case clang::BuiltinType::Kind::OCLImage2dArrayRW: |
4893 | case clang::BuiltinType::Kind::OCLImage2dArrayDepthRO: |
4894 | case clang::BuiltinType::Kind::OCLImage2dArrayDepthWO: |
4895 | case clang::BuiltinType::Kind::OCLImage2dArrayDepthRW: |
4896 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAARO: |
4897 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAAWO: |
4898 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAARW: |
4899 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRO: |
4900 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthWO: |
4901 | case clang::BuiltinType::Kind::OCLImage2dArrayMSAADepthRW: |
4902 | case clang::BuiltinType::Kind::OCLImage2dDepthRO: |
4903 | case clang::BuiltinType::Kind::OCLImage2dDepthWO: |
4904 | case clang::BuiltinType::Kind::OCLImage2dDepthRW: |
4905 | case clang::BuiltinType::Kind::OCLImage2dMSAARO: |
4906 | case clang::BuiltinType::Kind::OCLImage2dMSAAWO: |
4907 | case clang::BuiltinType::Kind::OCLImage2dMSAARW: |
4908 | case clang::BuiltinType::Kind::OCLImage2dMSAADepthRO: |
4909 | case clang::BuiltinType::Kind::OCLImage2dMSAADepthWO: |
4910 | case clang::BuiltinType::Kind::OCLImage2dMSAADepthRW: |
4911 | case clang::BuiltinType::Kind::OCLImage3dRO: |
4912 | case clang::BuiltinType::Kind::OCLImage3dWO: |
4913 | case clang::BuiltinType::Kind::OCLImage3dRW: |
4914 | case clang::BuiltinType::Kind::OCLQueue: |
4915 | case clang::BuiltinType::Kind::OCLReserveID: |
4916 | case clang::BuiltinType::Kind::OCLSampler: |
4917 | case clang::BuiltinType::Kind::OMPArraySection: |
4918 | case clang::BuiltinType::Kind::OMPArrayShaping: |
4919 | case clang::BuiltinType::Kind::OMPIterator: |
4920 | case clang::BuiltinType::Kind::Overload: |
4921 | case clang::BuiltinType::Kind::PseudoObject: |
4922 | case clang::BuiltinType::Kind::UnknownAny: |
4923 | break; |
4924 | |
4925 | case clang::BuiltinType::OCLIntelSubgroupAVCMcePayload: |
4926 | case clang::BuiltinType::OCLIntelSubgroupAVCImePayload: |
4927 | case clang::BuiltinType::OCLIntelSubgroupAVCRefPayload: |
4928 | case clang::BuiltinType::OCLIntelSubgroupAVCSicPayload: |
4929 | case clang::BuiltinType::OCLIntelSubgroupAVCMceResult: |
4930 | case clang::BuiltinType::OCLIntelSubgroupAVCImeResult: |
4931 | case clang::BuiltinType::OCLIntelSubgroupAVCRefResult: |
4932 | case clang::BuiltinType::OCLIntelSubgroupAVCSicResult: |
4933 | case clang::BuiltinType::OCLIntelSubgroupAVCImeResultSingleRefStreamout: |
4934 | case clang::BuiltinType::OCLIntelSubgroupAVCImeResultDualRefStreamout: |
4935 | case clang::BuiltinType::OCLIntelSubgroupAVCImeSingleRefStreamin: |
4936 | case clang::BuiltinType::OCLIntelSubgroupAVCImeDualRefStreamin: |
4937 | break; |
4938 | |
4939 | // PowerPC -- Matrix Multiply Assist |
4940 | case clang::BuiltinType::VectorPair: |
4941 | case clang::BuiltinType::VectorQuad: |
4942 | break; |
4943 | |
4944 | // ARM -- Scalable Vector Extension |
4945 | case clang::BuiltinType::SveBool: |
4946 | case clang::BuiltinType::SveInt8: |
4947 | case clang::BuiltinType::SveInt8x2: |
4948 | case clang::BuiltinType::SveInt8x3: |
4949 | case clang::BuiltinType::SveInt8x4: |
4950 | case clang::BuiltinType::SveInt16: |
4951 | case clang::BuiltinType::SveInt16x2: |
4952 | case clang::BuiltinType::SveInt16x3: |
4953 | case clang::BuiltinType::SveInt16x4: |
4954 | case clang::BuiltinType::SveInt32: |
4955 | case clang::BuiltinType::SveInt32x2: |
4956 | case clang::BuiltinType::SveInt32x3: |
4957 | case clang::BuiltinType::SveInt32x4: |
4958 | case clang::BuiltinType::SveInt64: |
4959 | case clang::BuiltinType::SveInt64x2: |
4960 | case clang::BuiltinType::SveInt64x3: |
4961 | case clang::BuiltinType::SveInt64x4: |
4962 | case clang::BuiltinType::SveUint8: |
4963 | case clang::BuiltinType::SveUint8x2: |
4964 | case clang::BuiltinType::SveUint8x3: |
4965 | case clang::BuiltinType::SveUint8x4: |
4966 | case clang::BuiltinType::SveUint16: |
4967 | case clang::BuiltinType::SveUint16x2: |
4968 | case clang::BuiltinType::SveUint16x3: |
4969 | case clang::BuiltinType::SveUint16x4: |
4970 | case clang::BuiltinType::SveUint32: |
4971 | case clang::BuiltinType::SveUint32x2: |
4972 | case clang::BuiltinType::SveUint32x3: |
4973 | case clang::BuiltinType::SveUint32x4: |
4974 | case clang::BuiltinType::SveUint64: |
4975 | case clang::BuiltinType::SveUint64x2: |
4976 | case clang::BuiltinType::SveUint64x3: |
4977 | case clang::BuiltinType::SveUint64x4: |
4978 | case clang::BuiltinType::SveFloat16: |
4979 | case clang::BuiltinType::SveBFloat16: |
4980 | case clang::BuiltinType::SveBFloat16x2: |
4981 | case clang::BuiltinType::SveBFloat16x3: |
4982 | case clang::BuiltinType::SveBFloat16x4: |
4983 | case clang::BuiltinType::SveFloat16x2: |
4984 | case clang::BuiltinType::SveFloat16x3: |
4985 | case clang::BuiltinType::SveFloat16x4: |
4986 | case clang::BuiltinType::SveFloat32: |
4987 | case clang::BuiltinType::SveFloat32x2: |
4988 | case clang::BuiltinType::SveFloat32x3: |
4989 | case clang::BuiltinType::SveFloat32x4: |
4990 | case clang::BuiltinType::SveFloat64: |
4991 | case clang::BuiltinType::SveFloat64x2: |
4992 | case clang::BuiltinType::SveFloat64x3: |
4993 | case clang::BuiltinType::SveFloat64x4: |
4994 | break; |
4995 | |
4996 | // RISC-V V builtin types. |
4997 | case clang::BuiltinType::RvvInt8mf8: |
4998 | case clang::BuiltinType::RvvInt8mf4: |
4999 | case clang::BuiltinType::RvvInt8mf2: |
5000 | case clang::BuiltinType::RvvInt8m1: |
5001 | case clang::BuiltinType::RvvInt8m2: |
5002 | case clang::BuiltinType::RvvInt8m4: |
5003 | case clang::BuiltinType::RvvInt8m8: |
5004 | case clang::BuiltinType::RvvUint8mf8: |
5005 | case clang::BuiltinType::RvvUint8mf4: |
5006 | case clang::BuiltinType::RvvUint8mf2: |
5007 | case clang::BuiltinType::RvvUint8m1: |
5008 | case clang::BuiltinType::RvvUint8m2: |
5009 | case clang::BuiltinType::RvvUint8m4: |
5010 | case clang::BuiltinType::RvvUint8m8: |
5011 | case clang::BuiltinType::RvvInt16mf4: |
5012 | case clang::BuiltinType::RvvInt16mf2: |
5013 | case clang::BuiltinType::RvvInt16m1: |
5014 | case clang::BuiltinType::RvvInt16m2: |
5015 | case clang::BuiltinType::RvvInt16m4: |
5016 | case clang::BuiltinType::RvvInt16m8: |
5017 | case clang::BuiltinType::RvvUint16mf4: |
5018 | case clang::BuiltinType::RvvUint16mf2: |
5019 | case clang::BuiltinType::RvvUint16m1: |
5020 | case clang::BuiltinType::RvvUint16m2: |
5021 | case clang::BuiltinType::RvvUint16m4: |
5022 | case clang::BuiltinType::RvvUint16m8: |
5023 | case clang::BuiltinType::RvvInt32mf2: |
5024 | case clang::BuiltinType::RvvInt32m1: |
5025 | case clang::BuiltinType::RvvInt32m2: |
5026 | case clang::BuiltinType::RvvInt32m4: |
5027 | case clang::BuiltinType::RvvInt32m8: |
5028 | case clang::BuiltinType::RvvUint32mf2: |
5029 | case clang::BuiltinType::RvvUint32m1: |
5030 | case clang::BuiltinType::RvvUint32m2: |
5031 | case clang::BuiltinType::RvvUint32m4: |
5032 | case clang::BuiltinType::RvvUint32m8: |
5033 | case clang::BuiltinType::RvvInt64m1: |
5034 | case clang::BuiltinType::RvvInt64m2: |
5035 | case clang::BuiltinType::RvvInt64m4: |
5036 | case clang::BuiltinType::RvvInt64m8: |
5037 | case clang::BuiltinType::RvvUint64m1: |
5038 | case clang::BuiltinType::RvvUint64m2: |
5039 | case clang::BuiltinType::RvvUint64m4: |
5040 | case clang::BuiltinType::RvvUint64m8: |
5041 | case clang::BuiltinType::RvvFloat16mf4: |
5042 | case clang::BuiltinType::RvvFloat16mf2: |
5043 | case clang::BuiltinType::RvvFloat16m1: |
5044 | case clang::BuiltinType::RvvFloat16m2: |
5045 | case clang::BuiltinType::RvvFloat16m4: |
5046 | case clang::BuiltinType::RvvFloat16m8: |
5047 | case clang::BuiltinType::RvvFloat32mf2: |
5048 | case clang::BuiltinType::RvvFloat32m1: |
5049 | case clang::BuiltinType::RvvFloat32m2: |
5050 | case clang::BuiltinType::RvvFloat32m4: |
5051 | case clang::BuiltinType::RvvFloat32m8: |
5052 | case clang::BuiltinType::RvvFloat64m1: |
5053 | case clang::BuiltinType::RvvFloat64m2: |
5054 | case clang::BuiltinType::RvvFloat64m4: |
5055 | case clang::BuiltinType::RvvFloat64m8: |
5056 | case clang::BuiltinType::RvvBool1: |
5057 | case clang::BuiltinType::RvvBool2: |
5058 | case clang::BuiltinType::RvvBool4: |
5059 | case clang::BuiltinType::RvvBool8: |
5060 | case clang::BuiltinType::RvvBool16: |
5061 | case clang::BuiltinType::RvvBool32: |
5062 | case clang::BuiltinType::RvvBool64: |
5063 | break; |
5064 | |
5065 | case clang::BuiltinType::IncompleteMatrixIdx: |
5066 | break; |
5067 | } |
5068 | break; |
5069 | // All pointer types are represented as unsigned integer encodings. We may |
5070 | // nee to add a eEncodingPointer if we ever need to know the difference |
5071 | case clang::Type::ObjCObjectPointer: |
5072 | case clang::Type::BlockPointer: |
5073 | case clang::Type::Pointer: |
5074 | case clang::Type::LValueReference: |
5075 | case clang::Type::RValueReference: |
5076 | case clang::Type::MemberPointer: |
5077 | return lldb::eEncodingUint; |
5078 | case clang::Type::Complex: { |
5079 | lldb::Encoding encoding = lldb::eEncodingIEEE754; |
5080 | if (qual_type->isComplexType()) |
5081 | encoding = lldb::eEncodingIEEE754; |
5082 | else { |
5083 | const clang::ComplexType *complex_type = |
5084 | qual_type->getAsComplexIntegerType(); |
5085 | if (complex_type) |
5086 | encoding = GetType(complex_type->getElementType()).GetEncoding(count); |
5087 | else |
5088 | encoding = lldb::eEncodingSint; |
5089 | } |
5090 | count = 2; |
5091 | return encoding; |
5092 | } |
5093 | |
5094 | case clang::Type::ObjCInterface: |
5095 | break; |
5096 | case clang::Type::Record: |
5097 | break; |
5098 | case clang::Type::Enum: |
5099 | return lldb::eEncodingSint; |
5100 | case clang::Type::DependentSizedArray: |
5101 | case clang::Type::DependentSizedExtVector: |
5102 | case clang::Type::UnresolvedUsing: |
5103 | case clang::Type::Attributed: |
5104 | case clang::Type::BTFTagAttributed: |
5105 | case clang::Type::TemplateTypeParm: |
5106 | case clang::Type::SubstTemplateTypeParm: |
5107 | case clang::Type::SubstTemplateTypeParmPack: |
5108 | case clang::Type::InjectedClassName: |
5109 | case clang::Type::DependentName: |
5110 | case clang::Type::DependentTemplateSpecialization: |
5111 | case clang::Type::PackExpansion: |
5112 | case clang::Type::ObjCObject: |
5113 | |
5114 | case clang::Type::TemplateSpecialization: |
5115 | case clang::Type::DeducedTemplateSpecialization: |
5116 | case clang::Type::Adjusted: |
5117 | case clang::Type::Pipe: |
5118 | break; |
5119 | |
5120 | // pointer type decayed from an array or function type. |
5121 | case clang::Type::Decayed: |
5122 | break; |
5123 | case clang::Type::ObjCTypeParam: |
5124 | break; |
5125 | |
5126 | case clang::Type::DependentAddressSpace: |
5127 | break; |
5128 | case clang::Type::MacroQualified: |
5129 | break; |
5130 | |
5131 | case clang::Type::ConstantMatrix: |
5132 | case clang::Type::DependentSizedMatrix: |
5133 | break; |
5134 | } |
5135 | count = 0; |
5136 | return lldb::eEncodingInvalid; |
5137 | } |
5138 | |
5139 | lldb::Format TypeSystemClang::GetFormat(lldb::opaque_compiler_type_t type) { |
5140 | if (!type) |
5141 | return lldb::eFormatDefault; |
5142 | |
5143 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
5144 | |
5145 | switch (qual_type->getTypeClass()) { |
5146 | case clang::Type::Atomic: |
5147 | case clang::Type::Auto: |
5148 | case clang::Type::Decltype: |
5149 | case clang::Type::Elaborated: |
5150 | case clang::Type::Paren: |
5151 | case clang::Type::Typedef: |
5152 | case clang::Type::TypeOf: |
5153 | case clang::Type::TypeOfExpr: |
5154 | case clang::Type::Using: |
5155 | llvm_unreachable("Handled in RemoveWrappingTypes!")::llvm::llvm_unreachable_internal("Handled in RemoveWrappingTypes!" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 5155); |
5156 | case clang::Type::UnaryTransform: |
5157 | break; |
5158 | |
5159 | case clang::Type::FunctionNoProto: |
5160 | case clang::Type::FunctionProto: |
5161 | break; |
5162 | |
5163 | case clang::Type::IncompleteArray: |
5164 | case clang::Type::VariableArray: |
5165 | break; |
5166 | |
5167 | case clang::Type::ConstantArray: |
5168 | return lldb::eFormatVoid; // no value |
5169 | |
5170 | case clang::Type::DependentVector: |
5171 | case clang::Type::ExtVector: |
5172 | case clang::Type::Vector: |
5173 | break; |
5174 | |
5175 | case clang::Type::BitInt: |
5176 | case clang::Type::DependentBitInt: |
5177 | return qual_type->isUnsignedIntegerType() ? lldb::eFormatUnsigned |
5178 | : lldb::eFormatDecimal; |
5179 | |
5180 | case clang::Type::Builtin: |
5181 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
5182 | case clang::BuiltinType::UnknownAny: |
5183 | case clang::BuiltinType::Void: |
5184 | case clang::BuiltinType::BoundMember: |
5185 | break; |
5186 | |
5187 | case clang::BuiltinType::Bool: |
5188 | return lldb::eFormatBoolean; |
5189 | case clang::BuiltinType::Char_S: |
5190 | case clang::BuiltinType::SChar: |
5191 | case clang::BuiltinType::WChar_S: |
5192 | case clang::BuiltinType::Char_U: |
5193 | case clang::BuiltinType::UChar: |
5194 | case clang::BuiltinType::WChar_U: |
5195 | return lldb::eFormatChar; |
5196 | case clang::BuiltinType::Char8: |
5197 | return lldb::eFormatUnicode8; |
5198 | case clang::BuiltinType::Char16: |
5199 | return lldb::eFormatUnicode16; |
5200 | case clang::BuiltinType::Char32: |
5201 | return lldb::eFormatUnicode32; |
5202 | case clang::BuiltinType::UShort: |
5203 | return lldb::eFormatUnsigned; |
5204 | case clang::BuiltinType::Short: |
5205 | return lldb::eFormatDecimal; |
5206 | case clang::BuiltinType::UInt: |
5207 | return lldb::eFormatUnsigned; |
5208 | case clang::BuiltinType::Int: |
5209 | return lldb::eFormatDecimal; |
5210 | case clang::BuiltinType::ULong: |
5211 | return lldb::eFormatUnsigned; |
5212 | case clang::BuiltinType::Long: |
5213 | return lldb::eFormatDecimal; |
5214 | case clang::BuiltinType::ULongLong: |
5215 | return lldb::eFormatUnsigned; |
5216 | case clang::BuiltinType::LongLong: |
5217 | return lldb::eFormatDecimal; |
5218 | case clang::BuiltinType::UInt128: |
5219 | return lldb::eFormatUnsigned; |
5220 | case clang::BuiltinType::Int128: |
5221 | return lldb::eFormatDecimal; |
5222 | case clang::BuiltinType::Half: |
5223 | case clang::BuiltinType::Float: |
5224 | case clang::BuiltinType::Double: |
5225 | case clang::BuiltinType::LongDouble: |
5226 | return lldb::eFormatFloat; |
5227 | default: |
5228 | return lldb::eFormatHex; |
5229 | } |
5230 | break; |
5231 | case clang::Type::ObjCObjectPointer: |
5232 | return lldb::eFormatHex; |
5233 | case clang::Type::BlockPointer: |
5234 | return lldb::eFormatHex; |
5235 | case clang::Type::Pointer: |
5236 | return lldb::eFormatHex; |
5237 | case clang::Type::LValueReference: |
5238 | case clang::Type::RValueReference: |
5239 | return lldb::eFormatHex; |
5240 | case clang::Type::MemberPointer: |
5241 | break; |
5242 | case clang::Type::Complex: { |
5243 | if (qual_type->isComplexType()) |
5244 | return lldb::eFormatComplex; |
5245 | else |
5246 | return lldb::eFormatComplexInteger; |
5247 | } |
5248 | case clang::Type::ObjCInterface: |
5249 | break; |
5250 | case clang::Type::Record: |
5251 | break; |
5252 | case clang::Type::Enum: |
5253 | return lldb::eFormatEnum; |
5254 | case clang::Type::DependentSizedArray: |
5255 | case clang::Type::DependentSizedExtVector: |
5256 | case clang::Type::UnresolvedUsing: |
5257 | case clang::Type::Attributed: |
5258 | case clang::Type::BTFTagAttributed: |
5259 | case clang::Type::TemplateTypeParm: |
5260 | case clang::Type::SubstTemplateTypeParm: |
5261 | case clang::Type::SubstTemplateTypeParmPack: |
5262 | case clang::Type::InjectedClassName: |
5263 | case clang::Type::DependentName: |
5264 | case clang::Type::DependentTemplateSpecialization: |
5265 | case clang::Type::PackExpansion: |
5266 | case clang::Type::ObjCObject: |
5267 | |
5268 | case clang::Type::TemplateSpecialization: |
5269 | case clang::Type::DeducedTemplateSpecialization: |
5270 | case clang::Type::Adjusted: |
5271 | case clang::Type::Pipe: |
5272 | break; |
5273 | |
5274 | // pointer type decayed from an array or function type. |
5275 | case clang::Type::Decayed: |
5276 | break; |
5277 | case clang::Type::ObjCTypeParam: |
5278 | break; |
5279 | |
5280 | case clang::Type::DependentAddressSpace: |
5281 | break; |
5282 | case clang::Type::MacroQualified: |
5283 | break; |
5284 | |
5285 | // Matrix types we're not sure how to display yet. |
5286 | case clang::Type::ConstantMatrix: |
5287 | case clang::Type::DependentSizedMatrix: |
5288 | break; |
5289 | } |
5290 | // We don't know hot to display this type... |
5291 | return lldb::eFormatBytes; |
5292 | } |
5293 | |
5294 | static bool ObjCDeclHasIVars(clang::ObjCInterfaceDecl *class_interface_decl, |
5295 | bool check_superclass) { |
5296 | while (class_interface_decl) { |
5297 | if (class_interface_decl->ivar_size() > 0) |
5298 | return true; |
5299 | |
5300 | if (check_superclass) |
5301 | class_interface_decl = class_interface_decl->getSuperClass(); |
5302 | else |
5303 | break; |
5304 | } |
5305 | return false; |
5306 | } |
5307 | |
5308 | static Optional<SymbolFile::ArrayInfo> |
5309 | GetDynamicArrayInfo(TypeSystemClang &ast, SymbolFile *sym_file, |
5310 | clang::QualType qual_type, |
5311 | const ExecutionContext *exe_ctx) { |
5312 | if (qual_type->isIncompleteArrayType()) |
5313 | if (auto *metadata = ast.GetMetadata(qual_type.getTypePtr())) |
5314 | return sym_file->GetDynamicArrayInfoForUID(metadata->GetUserID(), |
5315 | exe_ctx); |
5316 | return llvm::None; |
5317 | } |
5318 | |
5319 | uint32_t TypeSystemClang::GetNumChildren(lldb::opaque_compiler_type_t type, |
5320 | bool omit_empty_base_classes, |
5321 | const ExecutionContext *exe_ctx) { |
5322 | if (!type) |
5323 | return 0; |
5324 | |
5325 | uint32_t num_children = 0; |
5326 | clang::QualType qual_type(RemoveWrappingTypes(GetQualType(type))); |
5327 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5328 | switch (type_class) { |
5329 | case clang::Type::Builtin: |
5330 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
5331 | case clang::BuiltinType::ObjCId: // child is Class |
5332 | case clang::BuiltinType::ObjCClass: // child is Class |
5333 | num_children = 1; |
5334 | break; |
5335 | |
5336 | default: |
5337 | break; |
5338 | } |
5339 | break; |
5340 | |
5341 | case clang::Type::Complex: |
5342 | return 0; |
5343 | case clang::Type::Record: |
5344 | if (GetCompleteQualType(&getASTContext(), qual_type)) { |
5345 | const clang::RecordType *record_type = |
5346 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
5347 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
5348 | assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail ("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 5348, __extension__ __PRETTY_FUNCTION__)); |
5349 | const clang::CXXRecordDecl *cxx_record_decl = |
5350 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
5351 | if (cxx_record_decl) { |
5352 | if (omit_empty_base_classes) { |
5353 | // Check each base classes to see if it or any of its base classes |
5354 | // contain any fields. This can help limit the noise in variable |
5355 | // views by not having to show base classes that contain no members. |
5356 | clang::CXXRecordDecl::base_class_const_iterator base_class, |
5357 | base_class_end; |
5358 | for (base_class = cxx_record_decl->bases_begin(), |
5359 | base_class_end = cxx_record_decl->bases_end(); |
5360 | base_class != base_class_end; ++base_class) { |
5361 | const clang::CXXRecordDecl *base_class_decl = |
5362 | llvm::cast<clang::CXXRecordDecl>( |
5363 | base_class->getType() |
5364 | ->getAs<clang::RecordType>() |
5365 | ->getDecl()); |
5366 | |
5367 | // Skip empty base classes |
5368 | if (!TypeSystemClang::RecordHasFields(base_class_decl)) |
5369 | continue; |
5370 | |
5371 | num_children++; |
5372 | } |
5373 | } else { |
5374 | // Include all base classes |
5375 | num_children += cxx_record_decl->getNumBases(); |
5376 | } |
5377 | } |
5378 | clang::RecordDecl::field_iterator field, field_end; |
5379 | for (field = record_decl->field_begin(), |
5380 | field_end = record_decl->field_end(); |
5381 | field != field_end; ++field) |
5382 | ++num_children; |
5383 | } |
5384 | break; |
5385 | |
5386 | case clang::Type::ObjCObject: |
5387 | case clang::Type::ObjCInterface: |
5388 | if (GetCompleteQualType(&getASTContext(), qual_type)) { |
5389 | const clang::ObjCObjectType *objc_class_type = |
5390 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
5391 | assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail ("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 5391, __extension__ __PRETTY_FUNCTION__)); |
5392 | if (objc_class_type) { |
5393 | clang::ObjCInterfaceDecl *class_interface_decl = |
5394 | objc_class_type->getInterface(); |
5395 | |
5396 | if (class_interface_decl) { |
5397 | |
5398 | clang::ObjCInterfaceDecl *superclass_interface_decl = |
5399 | class_interface_decl->getSuperClass(); |
5400 | if (superclass_interface_decl) { |
5401 | if (omit_empty_base_classes) { |
5402 | if (ObjCDeclHasIVars(superclass_interface_decl, true)) |
5403 | ++num_children; |
5404 | } else |
5405 | ++num_children; |
5406 | } |
5407 | |
5408 | num_children += class_interface_decl->ivar_size(); |
5409 | } |
5410 | } |
5411 | } |
5412 | break; |
5413 | |
5414 | case clang::Type::LValueReference: |
5415 | case clang::Type::RValueReference: |
5416 | case clang::Type::ObjCObjectPointer: { |
5417 | CompilerType pointee_clang_type(GetPointeeType(type)); |
5418 | |
5419 | uint32_t num_pointee_children = 0; |
5420 | if (pointee_clang_type.IsAggregateType()) |
5421 | num_pointee_children = |
5422 | pointee_clang_type.GetNumChildren(omit_empty_base_classes, exe_ctx); |
5423 | // If this type points to a simple type, then it has 1 child |
5424 | if (num_pointee_children == 0) |
5425 | num_children = 1; |
5426 | else |
5427 | num_children = num_pointee_children; |
5428 | } break; |
5429 | |
5430 | case clang::Type::Vector: |
5431 | case clang::Type::ExtVector: |
5432 | num_children = |
5433 | llvm::cast<clang::VectorType>(qual_type.getTypePtr())->getNumElements(); |
5434 | break; |
5435 | |
5436 | case clang::Type::ConstantArray: |
5437 | num_children = llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr()) |
5438 | ->getSize() |
5439 | .getLimitedValue(); |
5440 | break; |
5441 | case clang::Type::IncompleteArray: |
5442 | if (auto array_info = |
5443 | GetDynamicArrayInfo(*this, GetSymbolFile(), qual_type, exe_ctx)) |
5444 | // Only 1-dimensional arrays are supported. |
5445 | num_children = array_info->element_orders.size() |
5446 | ? array_info->element_orders.back() |
5447 | : 0; |
5448 | break; |
5449 | |
5450 | case clang::Type::Pointer: { |
5451 | const clang::PointerType *pointer_type = |
5452 | llvm::cast<clang::PointerType>(qual_type.getTypePtr()); |
5453 | clang::QualType pointee_type(pointer_type->getPointeeType()); |
5454 | CompilerType pointee_clang_type(GetType(pointee_type)); |
5455 | uint32_t num_pointee_children = 0; |
5456 | if (pointee_clang_type.IsAggregateType()) |
5457 | num_pointee_children = |
5458 | pointee_clang_type.GetNumChildren(omit_empty_base_classes, exe_ctx); |
5459 | if (num_pointee_children == 0) { |
5460 | // We have a pointer to a pointee type that claims it has no children. We |
5461 | // will want to look at |
5462 | num_children = GetNumPointeeChildren(pointee_type); |
5463 | } else |
5464 | num_children = num_pointee_children; |
5465 | } break; |
5466 | |
5467 | default: |
5468 | break; |
5469 | } |
5470 | return num_children; |
5471 | } |
5472 | |
5473 | CompilerType TypeSystemClang::GetBuiltinTypeByName(ConstString name) { |
5474 | return GetBasicType(GetBasicTypeEnumeration(name)); |
5475 | } |
5476 | |
5477 | lldb::BasicType |
5478 | TypeSystemClang::GetBasicTypeEnumeration(lldb::opaque_compiler_type_t type) { |
5479 | if (type) { |
5480 | clang::QualType qual_type(GetQualType(type)); |
5481 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5482 | if (type_class == clang::Type::Builtin) { |
5483 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
5484 | case clang::BuiltinType::Void: |
5485 | return eBasicTypeVoid; |
5486 | case clang::BuiltinType::Bool: |
5487 | return eBasicTypeBool; |
5488 | case clang::BuiltinType::Char_S: |
5489 | return eBasicTypeSignedChar; |
5490 | case clang::BuiltinType::Char_U: |
5491 | return eBasicTypeUnsignedChar; |
5492 | case clang::BuiltinType::Char8: |
5493 | return eBasicTypeChar8; |
5494 | case clang::BuiltinType::Char16: |
5495 | return eBasicTypeChar16; |
5496 | case clang::BuiltinType::Char32: |
5497 | return eBasicTypeChar32; |
5498 | case clang::BuiltinType::UChar: |
5499 | return eBasicTypeUnsignedChar; |
5500 | case clang::BuiltinType::SChar: |
5501 | return eBasicTypeSignedChar; |
5502 | case clang::BuiltinType::WChar_S: |
5503 | return eBasicTypeSignedWChar; |
5504 | case clang::BuiltinType::WChar_U: |
5505 | return eBasicTypeUnsignedWChar; |
5506 | case clang::BuiltinType::Short: |
5507 | return eBasicTypeShort; |
5508 | case clang::BuiltinType::UShort: |
5509 | return eBasicTypeUnsignedShort; |
5510 | case clang::BuiltinType::Int: |
5511 | return eBasicTypeInt; |
5512 | case clang::BuiltinType::UInt: |
5513 | return eBasicTypeUnsignedInt; |
5514 | case clang::BuiltinType::Long: |
5515 | return eBasicTypeLong; |
5516 | case clang::BuiltinType::ULong: |
5517 | return eBasicTypeUnsignedLong; |
5518 | case clang::BuiltinType::LongLong: |
5519 | return eBasicTypeLongLong; |
5520 | case clang::BuiltinType::ULongLong: |
5521 | return eBasicTypeUnsignedLongLong; |
5522 | case clang::BuiltinType::Int128: |
5523 | return eBasicTypeInt128; |
5524 | case clang::BuiltinType::UInt128: |
5525 | return eBasicTypeUnsignedInt128; |
5526 | |
5527 | case clang::BuiltinType::Half: |
5528 | return eBasicTypeHalf; |
5529 | case clang::BuiltinType::Float: |
5530 | return eBasicTypeFloat; |
5531 | case clang::BuiltinType::Double: |
5532 | return eBasicTypeDouble; |
5533 | case clang::BuiltinType::LongDouble: |
5534 | return eBasicTypeLongDouble; |
5535 | |
5536 | case clang::BuiltinType::NullPtr: |
5537 | return eBasicTypeNullPtr; |
5538 | case clang::BuiltinType::ObjCId: |
5539 | return eBasicTypeObjCID; |
5540 | case clang::BuiltinType::ObjCClass: |
5541 | return eBasicTypeObjCClass; |
5542 | case clang::BuiltinType::ObjCSel: |
5543 | return eBasicTypeObjCSel; |
5544 | default: |
5545 | return eBasicTypeOther; |
5546 | } |
5547 | } |
5548 | } |
5549 | return eBasicTypeInvalid; |
5550 | } |
5551 | |
5552 | void TypeSystemClang::ForEachEnumerator( |
5553 | lldb::opaque_compiler_type_t type, |
5554 | std::function<bool(const CompilerType &integer_type, |
5555 | ConstString name, |
5556 | const llvm::APSInt &value)> const &callback) { |
5557 | const clang::EnumType *enum_type = |
5558 | llvm::dyn_cast<clang::EnumType>(GetCanonicalQualType(type)); |
5559 | if (enum_type) { |
5560 | const clang::EnumDecl *enum_decl = enum_type->getDecl(); |
5561 | if (enum_decl) { |
5562 | CompilerType integer_type = GetType(enum_decl->getIntegerType()); |
5563 | |
5564 | clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos; |
5565 | for (enum_pos = enum_decl->enumerator_begin(), |
5566 | enum_end_pos = enum_decl->enumerator_end(); |
5567 | enum_pos != enum_end_pos; ++enum_pos) { |
5568 | ConstString name(enum_pos->getNameAsString().c_str()); |
5569 | if (!callback(integer_type, name, enum_pos->getInitVal())) |
5570 | break; |
5571 | } |
5572 | } |
5573 | } |
5574 | } |
5575 | |
5576 | #pragma mark Aggregate Types |
5577 | |
5578 | uint32_t TypeSystemClang::GetNumFields(lldb::opaque_compiler_type_t type) { |
5579 | if (!type) |
5580 | return 0; |
5581 | |
5582 | uint32_t count = 0; |
5583 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
5584 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5585 | switch (type_class) { |
5586 | case clang::Type::Record: |
5587 | if (GetCompleteType(type)) { |
5588 | const clang::RecordType *record_type = |
5589 | llvm::dyn_cast<clang::RecordType>(qual_type.getTypePtr()); |
5590 | if (record_type) { |
5591 | clang::RecordDecl *record_decl = record_type->getDecl(); |
5592 | if (record_decl) { |
5593 | uint32_t field_idx = 0; |
5594 | clang::RecordDecl::field_iterator field, field_end; |
5595 | for (field = record_decl->field_begin(), |
5596 | field_end = record_decl->field_end(); |
5597 | field != field_end; ++field) |
5598 | ++field_idx; |
5599 | count = field_idx; |
5600 | } |
5601 | } |
5602 | } |
5603 | break; |
5604 | |
5605 | case clang::Type::ObjCObjectPointer: { |
5606 | const clang::ObjCObjectPointerType *objc_class_type = |
5607 | qual_type->castAs<clang::ObjCObjectPointerType>(); |
5608 | const clang::ObjCInterfaceType *objc_interface_type = |
5609 | objc_class_type->getInterfaceType(); |
5610 | if (objc_interface_type && |
5611 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( |
5612 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { |
5613 | clang::ObjCInterfaceDecl *class_interface_decl = |
5614 | objc_interface_type->getDecl(); |
5615 | if (class_interface_decl) { |
5616 | count = class_interface_decl->ivar_size(); |
5617 | } |
5618 | } |
5619 | break; |
5620 | } |
5621 | |
5622 | case clang::Type::ObjCObject: |
5623 | case clang::Type::ObjCInterface: |
5624 | if (GetCompleteType(type)) { |
5625 | const clang::ObjCObjectType *objc_class_type = |
5626 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
5627 | if (objc_class_type) { |
5628 | clang::ObjCInterfaceDecl *class_interface_decl = |
5629 | objc_class_type->getInterface(); |
5630 | |
5631 | if (class_interface_decl) |
5632 | count = class_interface_decl->ivar_size(); |
5633 | } |
5634 | } |
5635 | break; |
5636 | |
5637 | default: |
5638 | break; |
5639 | } |
5640 | return count; |
5641 | } |
5642 | |
5643 | static lldb::opaque_compiler_type_t |
5644 | GetObjCFieldAtIndex(clang::ASTContext *ast, |
5645 | clang::ObjCInterfaceDecl *class_interface_decl, size_t idx, |
5646 | std::string &name, uint64_t *bit_offset_ptr, |
5647 | uint32_t *bitfield_bit_size_ptr, bool *is_bitfield_ptr) { |
5648 | if (class_interface_decl) { |
5649 | if (idx < (class_interface_decl->ivar_size())) { |
5650 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, |
5651 | ivar_end = class_interface_decl->ivar_end(); |
5652 | uint32_t ivar_idx = 0; |
5653 | |
5654 | for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end; |
5655 | ++ivar_pos, ++ivar_idx) { |
5656 | if (ivar_idx == idx) { |
5657 | const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; |
5658 | |
5659 | clang::QualType ivar_qual_type(ivar_decl->getType()); |
5660 | |
5661 | name.assign(ivar_decl->getNameAsString()); |
5662 | |
5663 | if (bit_offset_ptr) { |
5664 | const clang::ASTRecordLayout &interface_layout = |
5665 | ast->getASTObjCInterfaceLayout(class_interface_decl); |
5666 | *bit_offset_ptr = interface_layout.getFieldOffset(ivar_idx); |
5667 | } |
5668 | |
5669 | const bool is_bitfield = ivar_pos->isBitField(); |
5670 | |
5671 | if (bitfield_bit_size_ptr) { |
5672 | *bitfield_bit_size_ptr = 0; |
5673 | |
5674 | if (is_bitfield && ast) { |
5675 | clang::Expr *bitfield_bit_size_expr = ivar_pos->getBitWidth(); |
5676 | clang::Expr::EvalResult result; |
5677 | if (bitfield_bit_size_expr && |
5678 | bitfield_bit_size_expr->EvaluateAsInt(result, *ast)) { |
5679 | llvm::APSInt bitfield_apsint = result.Val.getInt(); |
5680 | *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue(); |
5681 | } |
5682 | } |
5683 | } |
5684 | if (is_bitfield_ptr) |
5685 | *is_bitfield_ptr = is_bitfield; |
5686 | |
5687 | return ivar_qual_type.getAsOpaquePtr(); |
5688 | } |
5689 | } |
5690 | } |
5691 | } |
5692 | return nullptr; |
5693 | } |
5694 | |
5695 | CompilerType TypeSystemClang::GetFieldAtIndex(lldb::opaque_compiler_type_t type, |
5696 | size_t idx, std::string &name, |
5697 | uint64_t *bit_offset_ptr, |
5698 | uint32_t *bitfield_bit_size_ptr, |
5699 | bool *is_bitfield_ptr) { |
5700 | if (!type) |
5701 | return CompilerType(); |
5702 | |
5703 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
5704 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5705 | switch (type_class) { |
5706 | case clang::Type::Record: |
5707 | if (GetCompleteType(type)) { |
5708 | const clang::RecordType *record_type = |
5709 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
5710 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
5711 | uint32_t field_idx = 0; |
5712 | clang::RecordDecl::field_iterator field, field_end; |
5713 | for (field = record_decl->field_begin(), |
5714 | field_end = record_decl->field_end(); |
5715 | field != field_end; ++field, ++field_idx) { |
5716 | if (idx == field_idx) { |
5717 | // Print the member type if requested |
5718 | // Print the member name and equal sign |
5719 | name.assign(field->getNameAsString()); |
5720 | |
5721 | // Figure out the type byte size (field_type_info.first) and |
5722 | // alignment (field_type_info.second) from the AST context. |
5723 | if (bit_offset_ptr) { |
5724 | const clang::ASTRecordLayout &record_layout = |
5725 | getASTContext().getASTRecordLayout(record_decl); |
5726 | *bit_offset_ptr = record_layout.getFieldOffset(field_idx); |
5727 | } |
5728 | |
5729 | const bool is_bitfield = field->isBitField(); |
5730 | |
5731 | if (bitfield_bit_size_ptr) { |
5732 | *bitfield_bit_size_ptr = 0; |
5733 | |
5734 | if (is_bitfield) { |
5735 | clang::Expr *bitfield_bit_size_expr = field->getBitWidth(); |
5736 | clang::Expr::EvalResult result; |
5737 | if (bitfield_bit_size_expr && |
5738 | bitfield_bit_size_expr->EvaluateAsInt(result, |
5739 | getASTContext())) { |
5740 | llvm::APSInt bitfield_apsint = result.Val.getInt(); |
5741 | *bitfield_bit_size_ptr = bitfield_apsint.getLimitedValue(); |
5742 | } |
5743 | } |
5744 | } |
5745 | if (is_bitfield_ptr) |
5746 | *is_bitfield_ptr = is_bitfield; |
5747 | |
5748 | return GetType(field->getType()); |
5749 | } |
5750 | } |
5751 | } |
5752 | break; |
5753 | |
5754 | case clang::Type::ObjCObjectPointer: { |
5755 | const clang::ObjCObjectPointerType *objc_class_type = |
5756 | qual_type->castAs<clang::ObjCObjectPointerType>(); |
5757 | const clang::ObjCInterfaceType *objc_interface_type = |
5758 | objc_class_type->getInterfaceType(); |
5759 | if (objc_interface_type && |
5760 | GetCompleteType(static_cast<lldb::opaque_compiler_type_t>( |
5761 | const_cast<clang::ObjCInterfaceType *>(objc_interface_type)))) { |
5762 | clang::ObjCInterfaceDecl *class_interface_decl = |
5763 | objc_interface_type->getDecl(); |
5764 | if (class_interface_decl) { |
5765 | return CompilerType( |
5766 | this, GetObjCFieldAtIndex(&getASTContext(), class_interface_decl, |
5767 | idx, name, bit_offset_ptr, |
5768 | bitfield_bit_size_ptr, is_bitfield_ptr)); |
5769 | } |
5770 | } |
5771 | break; |
5772 | } |
5773 | |
5774 | case clang::Type::ObjCObject: |
5775 | case clang::Type::ObjCInterface: |
5776 | if (GetCompleteType(type)) { |
5777 | const clang::ObjCObjectType *objc_class_type = |
5778 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
5779 | assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail ("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 5779, __extension__ __PRETTY_FUNCTION__)); |
5780 | if (objc_class_type) { |
5781 | clang::ObjCInterfaceDecl *class_interface_decl = |
5782 | objc_class_type->getInterface(); |
5783 | return CompilerType( |
5784 | this, GetObjCFieldAtIndex(&getASTContext(), class_interface_decl, |
5785 | idx, name, bit_offset_ptr, |
5786 | bitfield_bit_size_ptr, is_bitfield_ptr)); |
5787 | } |
5788 | } |
5789 | break; |
5790 | |
5791 | default: |
5792 | break; |
5793 | } |
5794 | return CompilerType(); |
5795 | } |
5796 | |
5797 | uint32_t |
5798 | TypeSystemClang::GetNumDirectBaseClasses(lldb::opaque_compiler_type_t type) { |
5799 | uint32_t count = 0; |
5800 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
5801 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5802 | switch (type_class) { |
5803 | case clang::Type::Record: |
5804 | if (GetCompleteType(type)) { |
5805 | const clang::CXXRecordDecl *cxx_record_decl = |
5806 | qual_type->getAsCXXRecordDecl(); |
5807 | if (cxx_record_decl) |
5808 | count = cxx_record_decl->getNumBases(); |
5809 | } |
5810 | break; |
5811 | |
5812 | case clang::Type::ObjCObjectPointer: |
5813 | count = GetPointeeType(type).GetNumDirectBaseClasses(); |
5814 | break; |
5815 | |
5816 | case clang::Type::ObjCObject: |
5817 | if (GetCompleteType(type)) { |
5818 | const clang::ObjCObjectType *objc_class_type = |
5819 | qual_type->getAsObjCQualifiedInterfaceType(); |
5820 | if (objc_class_type) { |
5821 | clang::ObjCInterfaceDecl *class_interface_decl = |
5822 | objc_class_type->getInterface(); |
5823 | |
5824 | if (class_interface_decl && class_interface_decl->getSuperClass()) |
5825 | count = 1; |
5826 | } |
5827 | } |
5828 | break; |
5829 | case clang::Type::ObjCInterface: |
5830 | if (GetCompleteType(type)) { |
5831 | const clang::ObjCInterfaceType *objc_interface_type = |
5832 | qual_type->getAs<clang::ObjCInterfaceType>(); |
5833 | if (objc_interface_type) { |
5834 | clang::ObjCInterfaceDecl *class_interface_decl = |
5835 | objc_interface_type->getInterface(); |
5836 | |
5837 | if (class_interface_decl && class_interface_decl->getSuperClass()) |
5838 | count = 1; |
5839 | } |
5840 | } |
5841 | break; |
5842 | |
5843 | default: |
5844 | break; |
5845 | } |
5846 | return count; |
5847 | } |
5848 | |
5849 | uint32_t |
5850 | TypeSystemClang::GetNumVirtualBaseClasses(lldb::opaque_compiler_type_t type) { |
5851 | uint32_t count = 0; |
5852 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
5853 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5854 | switch (type_class) { |
5855 | case clang::Type::Record: |
5856 | if (GetCompleteType(type)) { |
5857 | const clang::CXXRecordDecl *cxx_record_decl = |
5858 | qual_type->getAsCXXRecordDecl(); |
5859 | if (cxx_record_decl) |
5860 | count = cxx_record_decl->getNumVBases(); |
5861 | } |
5862 | break; |
5863 | |
5864 | default: |
5865 | break; |
5866 | } |
5867 | return count; |
5868 | } |
5869 | |
5870 | CompilerType TypeSystemClang::GetDirectBaseClassAtIndex( |
5871 | lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) { |
5872 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
5873 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5874 | switch (type_class) { |
5875 | case clang::Type::Record: |
5876 | if (GetCompleteType(type)) { |
5877 | const clang::CXXRecordDecl *cxx_record_decl = |
5878 | qual_type->getAsCXXRecordDecl(); |
5879 | if (cxx_record_decl) { |
5880 | uint32_t curr_idx = 0; |
5881 | clang::CXXRecordDecl::base_class_const_iterator base_class, |
5882 | base_class_end; |
5883 | for (base_class = cxx_record_decl->bases_begin(), |
5884 | base_class_end = cxx_record_decl->bases_end(); |
5885 | base_class != base_class_end; ++base_class, ++curr_idx) { |
5886 | if (curr_idx == idx) { |
5887 | if (bit_offset_ptr) { |
5888 | const clang::ASTRecordLayout &record_layout = |
5889 | getASTContext().getASTRecordLayout(cxx_record_decl); |
5890 | const clang::CXXRecordDecl *base_class_decl = |
5891 | llvm::cast<clang::CXXRecordDecl>( |
5892 | base_class->getType() |
5893 | ->castAs<clang::RecordType>() |
5894 | ->getDecl()); |
5895 | if (base_class->isVirtual()) |
5896 | *bit_offset_ptr = |
5897 | record_layout.getVBaseClassOffset(base_class_decl) |
5898 | .getQuantity() * |
5899 | 8; |
5900 | else |
5901 | *bit_offset_ptr = |
5902 | record_layout.getBaseClassOffset(base_class_decl) |
5903 | .getQuantity() * |
5904 | 8; |
5905 | } |
5906 | return GetType(base_class->getType()); |
5907 | } |
5908 | } |
5909 | } |
5910 | } |
5911 | break; |
5912 | |
5913 | case clang::Type::ObjCObjectPointer: |
5914 | return GetPointeeType(type).GetDirectBaseClassAtIndex(idx, bit_offset_ptr); |
5915 | |
5916 | case clang::Type::ObjCObject: |
5917 | if (idx == 0 && GetCompleteType(type)) { |
5918 | const clang::ObjCObjectType *objc_class_type = |
5919 | qual_type->getAsObjCQualifiedInterfaceType(); |
5920 | if (objc_class_type) { |
5921 | clang::ObjCInterfaceDecl *class_interface_decl = |
5922 | objc_class_type->getInterface(); |
5923 | |
5924 | if (class_interface_decl) { |
5925 | clang::ObjCInterfaceDecl *superclass_interface_decl = |
5926 | class_interface_decl->getSuperClass(); |
5927 | if (superclass_interface_decl) { |
5928 | if (bit_offset_ptr) |
5929 | *bit_offset_ptr = 0; |
5930 | return GetType(getASTContext().getObjCInterfaceType( |
5931 | superclass_interface_decl)); |
5932 | } |
5933 | } |
5934 | } |
5935 | } |
5936 | break; |
5937 | case clang::Type::ObjCInterface: |
5938 | if (idx == 0 && GetCompleteType(type)) { |
5939 | const clang::ObjCObjectType *objc_interface_type = |
5940 | qual_type->getAs<clang::ObjCInterfaceType>(); |
5941 | if (objc_interface_type) { |
5942 | clang::ObjCInterfaceDecl *class_interface_decl = |
5943 | objc_interface_type->getInterface(); |
5944 | |
5945 | if (class_interface_decl) { |
5946 | clang::ObjCInterfaceDecl *superclass_interface_decl = |
5947 | class_interface_decl->getSuperClass(); |
5948 | if (superclass_interface_decl) { |
5949 | if (bit_offset_ptr) |
5950 | *bit_offset_ptr = 0; |
5951 | return GetType(getASTContext().getObjCInterfaceType( |
5952 | superclass_interface_decl)); |
5953 | } |
5954 | } |
5955 | } |
5956 | } |
5957 | break; |
5958 | |
5959 | default: |
5960 | break; |
5961 | } |
5962 | return CompilerType(); |
5963 | } |
5964 | |
5965 | CompilerType TypeSystemClang::GetVirtualBaseClassAtIndex( |
5966 | lldb::opaque_compiler_type_t type, size_t idx, uint32_t *bit_offset_ptr) { |
5967 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
5968 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
5969 | switch (type_class) { |
5970 | case clang::Type::Record: |
5971 | if (GetCompleteType(type)) { |
5972 | const clang::CXXRecordDecl *cxx_record_decl = |
5973 | qual_type->getAsCXXRecordDecl(); |
5974 | if (cxx_record_decl) { |
5975 | uint32_t curr_idx = 0; |
5976 | clang::CXXRecordDecl::base_class_const_iterator base_class, |
5977 | base_class_end; |
5978 | for (base_class = cxx_record_decl->vbases_begin(), |
5979 | base_class_end = cxx_record_decl->vbases_end(); |
5980 | base_class != base_class_end; ++base_class, ++curr_idx) { |
5981 | if (curr_idx == idx) { |
5982 | if (bit_offset_ptr) { |
5983 | const clang::ASTRecordLayout &record_layout = |
5984 | getASTContext().getASTRecordLayout(cxx_record_decl); |
5985 | const clang::CXXRecordDecl *base_class_decl = |
5986 | llvm::cast<clang::CXXRecordDecl>( |
5987 | base_class->getType() |
5988 | ->castAs<clang::RecordType>() |
5989 | ->getDecl()); |
5990 | *bit_offset_ptr = |
5991 | record_layout.getVBaseClassOffset(base_class_decl) |
5992 | .getQuantity() * |
5993 | 8; |
5994 | } |
5995 | return GetType(base_class->getType()); |
5996 | } |
5997 | } |
5998 | } |
5999 | } |
6000 | break; |
6001 | |
6002 | default: |
6003 | break; |
6004 | } |
6005 | return CompilerType(); |
6006 | } |
6007 | |
6008 | // If a pointer to a pointee type (the clang_type arg) says that it has no |
6009 | // children, then we either need to trust it, or override it and return a |
6010 | // different result. For example, an "int *" has one child that is an integer, |
6011 | // but a function pointer doesn't have any children. Likewise if a Record type |
6012 | // claims it has no children, then there really is nothing to show. |
6013 | uint32_t TypeSystemClang::GetNumPointeeChildren(clang::QualType type) { |
6014 | if (type.isNull()) |
6015 | return 0; |
6016 | |
6017 | clang::QualType qual_type = RemoveWrappingTypes(type.getCanonicalType()); |
6018 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
6019 | switch (type_class) { |
6020 | case clang::Type::Builtin: |
6021 | switch (llvm::cast<clang::BuiltinType>(qual_type)->getKind()) { |
6022 | case clang::BuiltinType::UnknownAny: |
6023 | case clang::BuiltinType::Void: |
6024 | case clang::BuiltinType::NullPtr: |
6025 | case clang::BuiltinType::OCLEvent: |
6026 | case clang::BuiltinType::OCLImage1dRO: |
6027 | case clang::BuiltinType::OCLImage1dWO: |
6028 | case clang::BuiltinType::OCLImage1dRW: |
6029 | case clang::BuiltinType::OCLImage1dArrayRO: |
6030 | case clang::BuiltinType::OCLImage1dArrayWO: |
6031 | case clang::BuiltinType::OCLImage1dArrayRW: |
6032 | case clang::BuiltinType::OCLImage1dBufferRO: |
6033 | case clang::BuiltinType::OCLImage1dBufferWO: |
6034 | case clang::BuiltinType::OCLImage1dBufferRW: |
6035 | case clang::BuiltinType::OCLImage2dRO: |
6036 | case clang::BuiltinType::OCLImage2dWO: |
6037 | case clang::BuiltinType::OCLImage2dRW: |
6038 | case clang::BuiltinType::OCLImage2dArrayRO: |
6039 | case clang::BuiltinType::OCLImage2dArrayWO: |
6040 | case clang::BuiltinType::OCLImage2dArrayRW: |
6041 | case clang::BuiltinType::OCLImage3dRO: |
6042 | case clang::BuiltinType::OCLImage3dWO: |
6043 | case clang::BuiltinType::OCLImage3dRW: |
6044 | case clang::BuiltinType::OCLSampler: |
6045 | return 0; |
6046 | case clang::BuiltinType::Bool: |
6047 | case clang::BuiltinType::Char_U: |
6048 | case clang::BuiltinType::UChar: |
6049 | case clang::BuiltinType::WChar_U: |
6050 | case clang::BuiltinType::Char16: |
6051 | case clang::BuiltinType::Char32: |
6052 | case clang::BuiltinType::UShort: |
6053 | case clang::BuiltinType::UInt: |
6054 | case clang::BuiltinType::ULong: |
6055 | case clang::BuiltinType::ULongLong: |
6056 | case clang::BuiltinType::UInt128: |
6057 | case clang::BuiltinType::Char_S: |
6058 | case clang::BuiltinType::SChar: |
6059 | case clang::BuiltinType::WChar_S: |
6060 | case clang::BuiltinType::Short: |
6061 | case clang::BuiltinType::Int: |
6062 | case clang::BuiltinType::Long: |
6063 | case clang::BuiltinType::LongLong: |
6064 | case clang::BuiltinType::Int128: |
6065 | case clang::BuiltinType::Float: |
6066 | case clang::BuiltinType::Double: |
6067 | case clang::BuiltinType::LongDouble: |
6068 | case clang::BuiltinType::Dependent: |
6069 | case clang::BuiltinType::Overload: |
6070 | case clang::BuiltinType::ObjCId: |
6071 | case clang::BuiltinType::ObjCClass: |
6072 | case clang::BuiltinType::ObjCSel: |
6073 | case clang::BuiltinType::BoundMember: |
6074 | case clang::BuiltinType::Half: |
6075 | case clang::BuiltinType::ARCUnbridgedCast: |
6076 | case clang::BuiltinType::PseudoObject: |
6077 | case clang::BuiltinType::BuiltinFn: |
6078 | case clang::BuiltinType::OMPArraySection: |
6079 | return 1; |
6080 | default: |
6081 | return 0; |
6082 | } |
6083 | break; |
6084 | |
6085 | case clang::Type::Complex: |
6086 | return 1; |
6087 | case clang::Type::Pointer: |
6088 | return 1; |
6089 | case clang::Type::BlockPointer: |
6090 | return 0; // If block pointers don't have debug info, then no children for |
6091 | // them |
6092 | case clang::Type::LValueReference: |
6093 | return 1; |
6094 | case clang::Type::RValueReference: |
6095 | return 1; |
6096 | case clang::Type::MemberPointer: |
6097 | return 0; |
6098 | case clang::Type::ConstantArray: |
6099 | return 0; |
6100 | case clang::Type::IncompleteArray: |
6101 | return 0; |
6102 | case clang::Type::VariableArray: |
6103 | return 0; |
6104 | case clang::Type::DependentSizedArray: |
6105 | return 0; |
6106 | case clang::Type::DependentSizedExtVector: |
6107 | return 0; |
6108 | case clang::Type::Vector: |
6109 | return 0; |
6110 | case clang::Type::ExtVector: |
6111 | return 0; |
6112 | case clang::Type::FunctionProto: |
6113 | return 0; // When we function pointers, they have no children... |
6114 | case clang::Type::FunctionNoProto: |
6115 | return 0; // When we function pointers, they have no children... |
6116 | case clang::Type::UnresolvedUsing: |
6117 | return 0; |
6118 | case clang::Type::Record: |
6119 | return 0; |
6120 | case clang::Type::Enum: |
6121 | return 1; |
6122 | case clang::Type::TemplateTypeParm: |
6123 | return 1; |
6124 | case clang::Type::SubstTemplateTypeParm: |
6125 | return 1; |
6126 | case clang::Type::TemplateSpecialization: |
6127 | return 1; |
6128 | case clang::Type::InjectedClassName: |
6129 | return 0; |
6130 | case clang::Type::DependentName: |
6131 | return 1; |
6132 | case clang::Type::DependentTemplateSpecialization: |
6133 | return 1; |
6134 | case clang::Type::ObjCObject: |
6135 | return 0; |
6136 | case clang::Type::ObjCInterface: |
6137 | return 0; |
6138 | case clang::Type::ObjCObjectPointer: |
6139 | return 1; |
6140 | default: |
6141 | break; |
6142 | } |
6143 | return 0; |
6144 | } |
6145 | |
6146 | CompilerType TypeSystemClang::GetChildCompilerTypeAtIndex( |
6147 | lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, size_t idx, |
6148 | bool transparent_pointers, bool omit_empty_base_classes, |
6149 | bool ignore_array_bounds, std::string &child_name, |
6150 | uint32_t &child_byte_size, int32_t &child_byte_offset, |
6151 | uint32_t &child_bitfield_bit_size, uint32_t &child_bitfield_bit_offset, |
6152 | bool &child_is_base_class, bool &child_is_deref_of_parent, |
6153 | ValueObject *valobj, uint64_t &language_flags) { |
6154 | if (!type) |
6155 | return CompilerType(); |
6156 | |
6157 | auto get_exe_scope = [&exe_ctx]() { |
6158 | return exe_ctx ? exe_ctx->GetBestExecutionContextScope() : nullptr; |
6159 | }; |
6160 | |
6161 | clang::QualType parent_qual_type( |
6162 | RemoveWrappingTypes(GetCanonicalQualType(type))); |
6163 | const clang::Type::TypeClass parent_type_class = |
6164 | parent_qual_type->getTypeClass(); |
6165 | child_bitfield_bit_size = 0; |
6166 | child_bitfield_bit_offset = 0; |
6167 | child_is_base_class = false; |
6168 | language_flags = 0; |
6169 | |
6170 | const bool idx_is_valid = |
6171 | idx < GetNumChildren(type, omit_empty_base_classes, exe_ctx); |
6172 | int32_t bit_offset; |
6173 | switch (parent_type_class) { |
6174 | case clang::Type::Builtin: |
6175 | if (idx_is_valid) { |
6176 | switch (llvm::cast<clang::BuiltinType>(parent_qual_type)->getKind()) { |
6177 | case clang::BuiltinType::ObjCId: |
6178 | case clang::BuiltinType::ObjCClass: |
6179 | child_name = "isa"; |
6180 | child_byte_size = |
6181 | getASTContext().getTypeSize(getASTContext().ObjCBuiltinClassTy) / |
6182 | CHAR_BIT8; |
6183 | return GetType(getASTContext().ObjCBuiltinClassTy); |
6184 | |
6185 | default: |
6186 | break; |
6187 | } |
6188 | } |
6189 | break; |
6190 | |
6191 | case clang::Type::Record: |
6192 | if (idx_is_valid && GetCompleteType(type)) { |
6193 | const clang::RecordType *record_type = |
6194 | llvm::cast<clang::RecordType>(parent_qual_type.getTypePtr()); |
6195 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
6196 | assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail ("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 6196, __extension__ __PRETTY_FUNCTION__)); |
6197 | const clang::ASTRecordLayout &record_layout = |
6198 | getASTContext().getASTRecordLayout(record_decl); |
6199 | uint32_t child_idx = 0; |
6200 | |
6201 | const clang::CXXRecordDecl *cxx_record_decl = |
6202 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
6203 | if (cxx_record_decl) { |
6204 | // We might have base classes to print out first |
6205 | clang::CXXRecordDecl::base_class_const_iterator base_class, |
6206 | base_class_end; |
6207 | for (base_class = cxx_record_decl->bases_begin(), |
6208 | base_class_end = cxx_record_decl->bases_end(); |
6209 | base_class != base_class_end; ++base_class) { |
6210 | const clang::CXXRecordDecl *base_class_decl = nullptr; |
6211 | |
6212 | // Skip empty base classes |
6213 | if (omit_empty_base_classes) { |
6214 | base_class_decl = llvm::cast<clang::CXXRecordDecl>( |
6215 | base_class->getType()->getAs<clang::RecordType>()->getDecl()); |
6216 | if (!TypeSystemClang::RecordHasFields(base_class_decl)) |
6217 | continue; |
6218 | } |
6219 | |
6220 | if (idx == child_idx) { |
6221 | if (base_class_decl == nullptr) |
6222 | base_class_decl = llvm::cast<clang::CXXRecordDecl>( |
6223 | base_class->getType()->getAs<clang::RecordType>()->getDecl()); |
6224 | |
6225 | if (base_class->isVirtual()) { |
6226 | bool handled = false; |
6227 | if (valobj) { |
6228 | clang::VTableContextBase *vtable_ctx = |
6229 | getASTContext().getVTableContext(); |
6230 | if (vtable_ctx) |
6231 | handled = GetVBaseBitOffset(*vtable_ctx, *valobj, |
6232 | record_layout, cxx_record_decl, |
6233 | base_class_decl, bit_offset); |
6234 | } |
6235 | if (!handled) |
6236 | bit_offset = record_layout.getVBaseClassOffset(base_class_decl) |
6237 | .getQuantity() * |
6238 | 8; |
6239 | } else |
6240 | bit_offset = record_layout.getBaseClassOffset(base_class_decl) |
6241 | .getQuantity() * |
6242 | 8; |
6243 | |
6244 | // Base classes should be a multiple of 8 bits in size |
6245 | child_byte_offset = bit_offset / 8; |
6246 | CompilerType base_class_clang_type = GetType(base_class->getType()); |
6247 | child_name = base_class_clang_type.GetTypeName().AsCString(""); |
6248 | Optional<uint64_t> size = |
6249 | base_class_clang_type.GetBitSize(get_exe_scope()); |
6250 | if (!size) |
6251 | return {}; |
6252 | uint64_t base_class_clang_type_bit_size = *size; |
6253 | |
6254 | // Base classes bit sizes should be a multiple of 8 bits in size |
6255 | assert(base_class_clang_type_bit_size % 8 == 0)(static_cast <bool> (base_class_clang_type_bit_size % 8 == 0) ? void (0) : __assert_fail ("base_class_clang_type_bit_size % 8 == 0" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 6255, __extension__ __PRETTY_FUNCTION__)); |
6256 | child_byte_size = base_class_clang_type_bit_size / 8; |
6257 | child_is_base_class = true; |
6258 | return base_class_clang_type; |
6259 | } |
6260 | // We don't increment the child index in the for loop since we might |
6261 | // be skipping empty base classes |
6262 | ++child_idx; |
6263 | } |
6264 | } |
6265 | // Make sure index is in range... |
6266 | uint32_t field_idx = 0; |
6267 | clang::RecordDecl::field_iterator field, field_end; |
6268 | for (field = record_decl->field_begin(), |
6269 | field_end = record_decl->field_end(); |
6270 | field != field_end; ++field, ++field_idx, ++child_idx) { |
6271 | if (idx == child_idx) { |
6272 | // Print the member type if requested |
6273 | // Print the member name and equal sign |
6274 | child_name.assign(field->getNameAsString()); |
6275 | |
6276 | // Figure out the type byte size (field_type_info.first) and |
6277 | // alignment (field_type_info.second) from the AST context. |
6278 | CompilerType field_clang_type = GetType(field->getType()); |
6279 | assert(field_idx < record_layout.getFieldCount())(static_cast <bool> (field_idx < record_layout.getFieldCount ()) ? void (0) : __assert_fail ("field_idx < record_layout.getFieldCount()" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 6279, __extension__ __PRETTY_FUNCTION__)); |
6280 | Optional<uint64_t> size = |
6281 | field_clang_type.GetByteSize(get_exe_scope()); |
6282 | if (!size) |
6283 | return {}; |
6284 | child_byte_size = *size; |
6285 | const uint32_t child_bit_size = child_byte_size * 8; |
6286 | |
6287 | // Figure out the field offset within the current struct/union/class |
6288 | // type |
6289 | bit_offset = record_layout.getFieldOffset(field_idx); |
6290 | if (FieldIsBitfield(*field, child_bitfield_bit_size)) { |
6291 | child_bitfield_bit_offset = bit_offset % child_bit_size; |
6292 | const uint32_t child_bit_offset = |
6293 | bit_offset - child_bitfield_bit_offset; |
6294 | child_byte_offset = child_bit_offset / 8; |
6295 | } else { |
6296 | child_byte_offset = bit_offset / 8; |
6297 | } |
6298 | |
6299 | return field_clang_type; |
6300 | } |
6301 | } |
6302 | } |
6303 | break; |
6304 | |
6305 | case clang::Type::ObjCObject: |
6306 | case clang::Type::ObjCInterface: |
6307 | if (idx_is_valid && GetCompleteType(type)) { |
6308 | const clang::ObjCObjectType *objc_class_type = |
6309 | llvm::dyn_cast<clang::ObjCObjectType>(parent_qual_type.getTypePtr()); |
6310 | assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail ("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 6310, __extension__ __PRETTY_FUNCTION__)); |
6311 | if (objc_class_type) { |
6312 | uint32_t child_idx = 0; |
6313 | clang::ObjCInterfaceDecl *class_interface_decl = |
6314 | objc_class_type->getInterface(); |
6315 | |
6316 | if (class_interface_decl) { |
6317 | |
6318 | const clang::ASTRecordLayout &interface_layout = |
6319 | getASTContext().getASTObjCInterfaceLayout(class_interface_decl); |
6320 | clang::ObjCInterfaceDecl *superclass_interface_decl = |
6321 | class_interface_decl->getSuperClass(); |
6322 | if (superclass_interface_decl) { |
6323 | if (omit_empty_base_classes) { |
6324 | CompilerType base_class_clang_type = |
6325 | GetType(getASTContext().getObjCInterfaceType( |
6326 | superclass_interface_decl)); |
6327 | if (base_class_clang_type.GetNumChildren(omit_empty_base_classes, |
6328 | exe_ctx) > 0) { |
6329 | if (idx == 0) { |
6330 | clang::QualType ivar_qual_type( |
6331 | getASTContext().getObjCInterfaceType( |
6332 | superclass_interface_decl)); |
6333 | |
6334 | child_name.assign( |
6335 | superclass_interface_decl->getNameAsString()); |
6336 | |
6337 | clang::TypeInfo ivar_type_info = |
6338 | getASTContext().getTypeInfo(ivar_qual_type.getTypePtr()); |
6339 | |
6340 | child_byte_size = ivar_type_info.Width / 8; |
6341 | child_byte_offset = 0; |
6342 | child_is_base_class = true; |
6343 | |
6344 | return GetType(ivar_qual_type); |
6345 | } |
6346 | |
6347 | ++child_idx; |
6348 | } |
6349 | } else |
6350 | ++child_idx; |
6351 | } |
6352 | |
6353 | const uint32_t superclass_idx = child_idx; |
6354 | |
6355 | if (idx < (child_idx + class_interface_decl->ivar_size())) { |
6356 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, |
6357 | ivar_end = class_interface_decl->ivar_end(); |
6358 | |
6359 | for (ivar_pos = class_interface_decl->ivar_begin(); |
6360 | ivar_pos != ivar_end; ++ivar_pos) { |
6361 | if (child_idx == idx) { |
6362 | clang::ObjCIvarDecl *ivar_decl = *ivar_pos; |
6363 | |
6364 | clang::QualType ivar_qual_type(ivar_decl->getType()); |
6365 | |
6366 | child_name.assign(ivar_decl->getNameAsString()); |
6367 | |
6368 | clang::TypeInfo ivar_type_info = |
6369 | getASTContext().getTypeInfo(ivar_qual_type.getTypePtr()); |
6370 | |
6371 | child_byte_size = ivar_type_info.Width / 8; |
6372 | |
6373 | // Figure out the field offset within the current |
6374 | // struct/union/class type For ObjC objects, we can't trust the |
6375 | // bit offset we get from the Clang AST, since that doesn't |
6376 | // account for the space taken up by unbacked properties, or |
6377 | // from the changing size of base classes that are newer than |
6378 | // this class. So if we have a process around that we can ask |
6379 | // about this object, do so. |
6380 | child_byte_offset = LLDB_INVALID_IVAR_OFFSET(4294967295U); |
6381 | Process *process = nullptr; |
6382 | if (exe_ctx) |
6383 | process = exe_ctx->GetProcessPtr(); |
6384 | if (process) { |
6385 | ObjCLanguageRuntime *objc_runtime = |
6386 | ObjCLanguageRuntime::Get(*process); |
6387 | if (objc_runtime != nullptr) { |
6388 | CompilerType parent_ast_type = GetType(parent_qual_type); |
6389 | child_byte_offset = objc_runtime->GetByteOffsetForIvar( |
6390 | parent_ast_type, ivar_decl->getNameAsString().c_str()); |
6391 | } |
6392 | } |
6393 | |
6394 | // Setting this to INT32_MAX to make sure we don't compute it |
6395 | // twice... |
6396 | bit_offset = INT32_MAX(2147483647); |
6397 | |
6398 | if (child_byte_offset == |
6399 | static_cast<int32_t>(LLDB_INVALID_IVAR_OFFSET(4294967295U))) { |
6400 | bit_offset = interface_layout.getFieldOffset(child_idx - |
6401 | superclass_idx); |
6402 | child_byte_offset = bit_offset / 8; |
6403 | } |
6404 | |
6405 | // Note, the ObjC Ivar Byte offset is just that, it doesn't |
6406 | // account for the bit offset of a bitfield within its |
6407 | // containing object. So regardless of where we get the byte |
6408 | // offset from, we still need to get the bit offset for |
6409 | // bitfields from the layout. |
6410 | |
6411 | if (FieldIsBitfield(ivar_decl, child_bitfield_bit_size)) { |
6412 | if (bit_offset == INT32_MAX(2147483647)) |
6413 | bit_offset = interface_layout.getFieldOffset( |
6414 | child_idx - superclass_idx); |
6415 | |
6416 | child_bitfield_bit_offset = bit_offset % 8; |
6417 | } |
6418 | return GetType(ivar_qual_type); |
6419 | } |
6420 | ++child_idx; |
6421 | } |
6422 | } |
6423 | } |
6424 | } |
6425 | } |
6426 | break; |
6427 | |
6428 | case clang::Type::ObjCObjectPointer: |
6429 | if (idx_is_valid) { |
6430 | CompilerType pointee_clang_type(GetPointeeType(type)); |
6431 | |
6432 | if (transparent_pointers && pointee_clang_type.IsAggregateType()) { |
6433 | child_is_deref_of_parent = false; |
6434 | bool tmp_child_is_deref_of_parent = false; |
6435 | return pointee_clang_type.GetChildCompilerTypeAtIndex( |
6436 | exe_ctx, idx, transparent_pointers, omit_empty_base_classes, |
6437 | ignore_array_bounds, child_name, child_byte_size, child_byte_offset, |
6438 | child_bitfield_bit_size, child_bitfield_bit_offset, |
6439 | child_is_base_class, tmp_child_is_deref_of_parent, valobj, |
6440 | language_flags); |
6441 | } else { |
6442 | child_is_deref_of_parent = true; |
6443 | const char *parent_name = |
6444 | valobj ? valobj->GetName().GetCString() : nullptr; |
6445 | if (parent_name) { |
6446 | child_name.assign(1, '*'); |
6447 | child_name += parent_name; |
6448 | } |
6449 | |
6450 | // We have a pointer to an simple type |
6451 | if (idx == 0 && pointee_clang_type.GetCompleteType()) { |
6452 | if (Optional<uint64_t> size = |
6453 | pointee_clang_type.GetByteSize(get_exe_scope())) { |
6454 | child_byte_size = *size; |
6455 | child_byte_offset = 0; |
6456 | return pointee_clang_type; |
6457 | } |
6458 | } |
6459 | } |
6460 | } |
6461 | break; |
6462 | |
6463 | case clang::Type::Vector: |
6464 | case clang::Type::ExtVector: |
6465 | if (idx_is_valid) { |
6466 | const clang::VectorType *array = |
6467 | llvm::cast<clang::VectorType>(parent_qual_type.getTypePtr()); |
6468 | if (array) { |
6469 | CompilerType element_type = GetType(array->getElementType()); |
6470 | if (element_type.GetCompleteType()) { |
6471 | char element_name[64]; |
6472 | ::snprintf(element_name, sizeof(element_name), "[%" PRIu64"l" "u" "]", |
6473 | static_cast<uint64_t>(idx)); |
6474 | child_name.assign(element_name); |
6475 | if (Optional<uint64_t> size = |
6476 | element_type.GetByteSize(get_exe_scope())) { |
6477 | child_byte_size = *size; |
6478 | child_byte_offset = (int32_t)idx * (int32_t)child_byte_size; |
6479 | return element_type; |
6480 | } |
6481 | } |
6482 | } |
6483 | } |
6484 | break; |
6485 | |
6486 | case clang::Type::ConstantArray: |
6487 | case clang::Type::IncompleteArray: |
6488 | if (ignore_array_bounds || idx_is_valid) { |
6489 | const clang::ArrayType *array = GetQualType(type)->getAsArrayTypeUnsafe(); |
6490 | if (array) { |
6491 | CompilerType element_type = GetType(array->getElementType()); |
6492 | if (element_type.GetCompleteType()) { |
6493 | child_name = std::string(llvm::formatv("[{0}]", idx)); |
6494 | if (Optional<uint64_t> size = |
6495 | element_type.GetByteSize(get_exe_scope())) { |
6496 | child_byte_size = *size; |
6497 | child_byte_offset = (int32_t)idx * (int32_t)child_byte_size; |
6498 | return element_type; |
6499 | } |
6500 | } |
6501 | } |
6502 | } |
6503 | break; |
6504 | |
6505 | case clang::Type::Pointer: { |
6506 | CompilerType pointee_clang_type(GetPointeeType(type)); |
6507 | |
6508 | // Don't dereference "void *" pointers |
6509 | if (pointee_clang_type.IsVoidType()) |
6510 | return CompilerType(); |
6511 | |
6512 | if (transparent_pointers && pointee_clang_type.IsAggregateType()) { |
6513 | child_is_deref_of_parent = false; |
6514 | bool tmp_child_is_deref_of_parent = false; |
6515 | return pointee_clang_type.GetChildCompilerTypeAtIndex( |
6516 | exe_ctx, idx, transparent_pointers, omit_empty_base_classes, |
6517 | ignore_array_bounds, child_name, child_byte_size, child_byte_offset, |
6518 | child_bitfield_bit_size, child_bitfield_bit_offset, |
6519 | child_is_base_class, tmp_child_is_deref_of_parent, valobj, |
6520 | language_flags); |
6521 | } else { |
6522 | child_is_deref_of_parent = true; |
6523 | |
6524 | const char *parent_name = |
6525 | valobj ? valobj->GetName().GetCString() : nullptr; |
6526 | if (parent_name) { |
6527 | child_name.assign(1, '*'); |
6528 | child_name += parent_name; |
6529 | } |
6530 | |
6531 | // We have a pointer to an simple type |
6532 | if (idx == 0) { |
6533 | if (Optional<uint64_t> size = |
6534 | pointee_clang_type.GetByteSize(get_exe_scope())) { |
6535 | child_byte_size = *size; |
6536 | child_byte_offset = 0; |
6537 | return pointee_clang_type; |
6538 | } |
6539 | } |
6540 | } |
6541 | break; |
6542 | } |
6543 | |
6544 | case clang::Type::LValueReference: |
6545 | case clang::Type::RValueReference: |
6546 | if (idx_is_valid) { |
6547 | const clang::ReferenceType *reference_type = |
6548 | llvm::cast<clang::ReferenceType>( |
6549 | RemoveWrappingTypes(GetQualType(type)).getTypePtr()); |
6550 | CompilerType pointee_clang_type = |
6551 | GetType(reference_type->getPointeeType()); |
6552 | if (transparent_pointers && pointee_clang_type.IsAggregateType()) { |
6553 | child_is_deref_of_parent = false; |
6554 | bool tmp_child_is_deref_of_parent = false; |
6555 | return pointee_clang_type.GetChildCompilerTypeAtIndex( |
6556 | exe_ctx, idx, transparent_pointers, omit_empty_base_classes, |
6557 | ignore_array_bounds, child_name, child_byte_size, child_byte_offset, |
6558 | child_bitfield_bit_size, child_bitfield_bit_offset, |
6559 | child_is_base_class, tmp_child_is_deref_of_parent, valobj, |
6560 | language_flags); |
6561 | } else { |
6562 | const char *parent_name = |
6563 | valobj ? valobj->GetName().GetCString() : nullptr; |
6564 | if (parent_name) { |
6565 | child_name.assign(1, '&'); |
6566 | child_name += parent_name; |
6567 | } |
6568 | |
6569 | // We have a pointer to an simple type |
6570 | if (idx == 0) { |
6571 | if (Optional<uint64_t> size = |
6572 | pointee_clang_type.GetByteSize(get_exe_scope())) { |
6573 | child_byte_size = *size; |
6574 | child_byte_offset = 0; |
6575 | return pointee_clang_type; |
6576 | } |
6577 | } |
6578 | } |
6579 | } |
6580 | break; |
6581 | |
6582 | default: |
6583 | break; |
6584 | } |
6585 | return CompilerType(); |
6586 | } |
6587 | |
6588 | static uint32_t GetIndexForRecordBase(const clang::RecordDecl *record_decl, |
6589 | const clang::CXXBaseSpecifier *base_spec, |
6590 | bool omit_empty_base_classes) { |
6591 | uint32_t child_idx = 0; |
6592 | |
6593 | const clang::CXXRecordDecl *cxx_record_decl = |
6594 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
6595 | |
6596 | if (cxx_record_decl) { |
6597 | clang::CXXRecordDecl::base_class_const_iterator base_class, base_class_end; |
6598 | for (base_class = cxx_record_decl->bases_begin(), |
6599 | base_class_end = cxx_record_decl->bases_end(); |
6600 | base_class != base_class_end; ++base_class) { |
6601 | if (omit_empty_base_classes) { |
6602 | if (BaseSpecifierIsEmpty(base_class)) |
6603 | continue; |
6604 | } |
6605 | |
6606 | if (base_class == base_spec) |
6607 | return child_idx; |
6608 | ++child_idx; |
6609 | } |
6610 | } |
6611 | |
6612 | return UINT32_MAX(4294967295U); |
6613 | } |
6614 | |
6615 | static uint32_t GetIndexForRecordChild(const clang::RecordDecl *record_decl, |
6616 | clang::NamedDecl *canonical_decl, |
6617 | bool omit_empty_base_classes) { |
6618 | uint32_t child_idx = TypeSystemClang::GetNumBaseClasses( |
6619 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl), |
6620 | omit_empty_base_classes); |
6621 | |
6622 | clang::RecordDecl::field_iterator field, field_end; |
6623 | for (field = record_decl->field_begin(), field_end = record_decl->field_end(); |
6624 | field != field_end; ++field, ++child_idx) { |
6625 | if (field->getCanonicalDecl() == canonical_decl) |
6626 | return child_idx; |
6627 | } |
6628 | |
6629 | return UINT32_MAX(4294967295U); |
6630 | } |
6631 | |
6632 | // Look for a child member (doesn't include base classes, but it does include |
6633 | // their members) in the type hierarchy. Returns an index path into |
6634 | // "clang_type" on how to reach the appropriate member. |
6635 | // |
6636 | // class A |
6637 | // { |
6638 | // public: |
6639 | // int m_a; |
6640 | // int m_b; |
6641 | // }; |
6642 | // |
6643 | // class B |
6644 | // { |
6645 | // }; |
6646 | // |
6647 | // class C : |
6648 | // public B, |
6649 | // public A |
6650 | // { |
6651 | // }; |
6652 | // |
6653 | // If we have a clang type that describes "class C", and we wanted to looked |
6654 | // "m_b" in it: |
6655 | // |
6656 | // With omit_empty_base_classes == false we would get an integer array back |
6657 | // with: { 1, 1 } The first index 1 is the child index for "class A" within |
6658 | // class C The second index 1 is the child index for "m_b" within class A |
6659 | // |
6660 | // With omit_empty_base_classes == true we would get an integer array back |
6661 | // with: { 0, 1 } The first index 0 is the child index for "class A" within |
6662 | // class C (since class B doesn't have any members it doesn't count) The second |
6663 | // index 1 is the child index for "m_b" within class A |
6664 | |
6665 | size_t TypeSystemClang::GetIndexOfChildMemberWithName( |
6666 | lldb::opaque_compiler_type_t type, const char *name, |
6667 | bool omit_empty_base_classes, std::vector<uint32_t> &child_indexes) { |
6668 | if (type && name && name[0]) { |
6669 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
6670 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
6671 | switch (type_class) { |
6672 | case clang::Type::Record: |
6673 | if (GetCompleteType(type)) { |
6674 | const clang::RecordType *record_type = |
6675 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
6676 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
6677 | |
6678 | assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail ("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 6678, __extension__ __PRETTY_FUNCTION__)); |
6679 | uint32_t child_idx = 0; |
6680 | |
6681 | const clang::CXXRecordDecl *cxx_record_decl = |
6682 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
6683 | |
6684 | // Try and find a field that matches NAME |
6685 | clang::RecordDecl::field_iterator field, field_end; |
6686 | llvm::StringRef name_sref(name); |
6687 | for (field = record_decl->field_begin(), |
6688 | field_end = record_decl->field_end(); |
6689 | field != field_end; ++field, ++child_idx) { |
6690 | llvm::StringRef field_name = field->getName(); |
6691 | if (field_name.empty()) { |
6692 | CompilerType field_type = GetType(field->getType()); |
6693 | child_indexes.push_back(child_idx); |
6694 | if (field_type.GetIndexOfChildMemberWithName( |
6695 | name, omit_empty_base_classes, child_indexes)) |
6696 | return child_indexes.size(); |
6697 | child_indexes.pop_back(); |
6698 | |
6699 | } else if (field_name.equals(name_sref)) { |
6700 | // We have to add on the number of base classes to this index! |
6701 | child_indexes.push_back( |
6702 | child_idx + TypeSystemClang::GetNumBaseClasses( |
6703 | cxx_record_decl, omit_empty_base_classes)); |
6704 | return child_indexes.size(); |
6705 | } |
6706 | } |
6707 | |
6708 | if (cxx_record_decl) { |
6709 | const clang::RecordDecl *parent_record_decl = cxx_record_decl; |
6710 | |
6711 | // Didn't find things easily, lets let clang do its thang... |
6712 | clang::IdentifierInfo &ident_ref = |
6713 | getASTContext().Idents.get(name_sref); |
6714 | clang::DeclarationName decl_name(&ident_ref); |
6715 | |
6716 | clang::CXXBasePaths paths; |
6717 | if (cxx_record_decl->lookupInBases( |
6718 | [decl_name](const clang::CXXBaseSpecifier *specifier, |
6719 | clang::CXXBasePath &path) { |
6720 | CXXRecordDecl *record = |
6721 | specifier->getType()->getAsCXXRecordDecl(); |
6722 | auto r = record->lookup(decl_name); |
6723 | path.Decls = r.begin(); |
6724 | return !r.empty(); |
6725 | }, |
6726 | paths)) { |
6727 | clang::CXXBasePaths::const_paths_iterator path, |
6728 | path_end = paths.end(); |
6729 | for (path = paths.begin(); path != path_end; ++path) { |
6730 | const size_t num_path_elements = path->size(); |
6731 | for (size_t e = 0; e < num_path_elements; ++e) { |
6732 | clang::CXXBasePathElement elem = (*path)[e]; |
6733 | |
6734 | child_idx = GetIndexForRecordBase(parent_record_decl, elem.Base, |
6735 | omit_empty_base_classes); |
6736 | if (child_idx == UINT32_MAX(4294967295U)) { |
6737 | child_indexes.clear(); |
6738 | return 0; |
6739 | } else { |
6740 | child_indexes.push_back(child_idx); |
6741 | parent_record_decl = llvm::cast<clang::RecordDecl>( |
6742 | elem.Base->getType() |
6743 | ->castAs<clang::RecordType>() |
6744 | ->getDecl()); |
6745 | } |
6746 | } |
6747 | for (clang::DeclContext::lookup_iterator I = path->Decls, E; |
6748 | I != E; ++I) { |
6749 | child_idx = GetIndexForRecordChild( |
6750 | parent_record_decl, *I, omit_empty_base_classes); |
6751 | if (child_idx == UINT32_MAX(4294967295U)) { |
6752 | child_indexes.clear(); |
6753 | return 0; |
6754 | } else { |
6755 | child_indexes.push_back(child_idx); |
6756 | } |
6757 | } |
6758 | } |
6759 | return child_indexes.size(); |
6760 | } |
6761 | } |
6762 | } |
6763 | break; |
6764 | |
6765 | case clang::Type::ObjCObject: |
6766 | case clang::Type::ObjCInterface: |
6767 | if (GetCompleteType(type)) { |
6768 | llvm::StringRef name_sref(name); |
6769 | const clang::ObjCObjectType *objc_class_type = |
6770 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
6771 | assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail ("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 6771, __extension__ __PRETTY_FUNCTION__)); |
6772 | if (objc_class_type) { |
6773 | uint32_t child_idx = 0; |
6774 | clang::ObjCInterfaceDecl *class_interface_decl = |
6775 | objc_class_type->getInterface(); |
6776 | |
6777 | if (class_interface_decl) { |
6778 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, |
6779 | ivar_end = class_interface_decl->ivar_end(); |
6780 | clang::ObjCInterfaceDecl *superclass_interface_decl = |
6781 | class_interface_decl->getSuperClass(); |
6782 | |
6783 | for (ivar_pos = class_interface_decl->ivar_begin(); |
6784 | ivar_pos != ivar_end; ++ivar_pos, ++child_idx) { |
6785 | const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; |
6786 | |
6787 | if (ivar_decl->getName().equals(name_sref)) { |
6788 | if ((!omit_empty_base_classes && superclass_interface_decl) || |
6789 | (omit_empty_base_classes && |
6790 | ObjCDeclHasIVars(superclass_interface_decl, true))) |
6791 | ++child_idx; |
6792 | |
6793 | child_indexes.push_back(child_idx); |
6794 | return child_indexes.size(); |
6795 | } |
6796 | } |
6797 | |
6798 | if (superclass_interface_decl) { |
6799 | // The super class index is always zero for ObjC classes, so we |
6800 | // push it onto the child indexes in case we find an ivar in our |
6801 | // superclass... |
6802 | child_indexes.push_back(0); |
6803 | |
6804 | CompilerType superclass_clang_type = |
6805 | GetType(getASTContext().getObjCInterfaceType( |
6806 | superclass_interface_decl)); |
6807 | if (superclass_clang_type.GetIndexOfChildMemberWithName( |
6808 | name, omit_empty_base_classes, child_indexes)) { |
6809 | // We did find an ivar in a superclass so just return the |
6810 | // results! |
6811 | return child_indexes.size(); |
6812 | } |
6813 | |
6814 | // We didn't find an ivar matching "name" in our superclass, pop |
6815 | // the superclass zero index that we pushed on above. |
6816 | child_indexes.pop_back(); |
6817 | } |
6818 | } |
6819 | } |
6820 | } |
6821 | break; |
6822 | |
6823 | case clang::Type::ObjCObjectPointer: { |
6824 | CompilerType objc_object_clang_type = GetType( |
6825 | llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) |
6826 | ->getPointeeType()); |
6827 | return objc_object_clang_type.GetIndexOfChildMemberWithName( |
6828 | name, omit_empty_base_classes, child_indexes); |
6829 | } break; |
6830 | |
6831 | case clang::Type::ConstantArray: { |
6832 | // const clang::ConstantArrayType *array = |
6833 | // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr()); |
6834 | // const uint64_t element_count = |
6835 | // array->getSize().getLimitedValue(); |
6836 | // |
6837 | // if (idx < element_count) |
6838 | // { |
6839 | // std::pair<uint64_t, unsigned> field_type_info = |
6840 | // ast->getTypeInfo(array->getElementType()); |
6841 | // |
6842 | // char element_name[32]; |
6843 | // ::snprintf (element_name, sizeof (element_name), |
6844 | // "%s[%u]", parent_name ? parent_name : "", idx); |
6845 | // |
6846 | // child_name.assign(element_name); |
6847 | // assert(field_type_info.first % 8 == 0); |
6848 | // child_byte_size = field_type_info.first / 8; |
6849 | // child_byte_offset = idx * child_byte_size; |
6850 | // return array->getElementType().getAsOpaquePtr(); |
6851 | // } |
6852 | } break; |
6853 | |
6854 | // case clang::Type::MemberPointerType: |
6855 | // { |
6856 | // MemberPointerType *mem_ptr_type = |
6857 | // llvm::cast<MemberPointerType>(qual_type.getTypePtr()); |
6858 | // clang::QualType pointee_type = |
6859 | // mem_ptr_type->getPointeeType(); |
6860 | // |
6861 | // if (TypeSystemClang::IsAggregateType |
6862 | // (pointee_type.getAsOpaquePtr())) |
6863 | // { |
6864 | // return GetIndexOfChildWithName (ast, |
6865 | // mem_ptr_type->getPointeeType().getAsOpaquePtr(), |
6866 | // name); |
6867 | // } |
6868 | // } |
6869 | // break; |
6870 | // |
6871 | case clang::Type::LValueReference: |
6872 | case clang::Type::RValueReference: { |
6873 | const clang::ReferenceType *reference_type = |
6874 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); |
6875 | clang::QualType pointee_type(reference_type->getPointeeType()); |
6876 | CompilerType pointee_clang_type = GetType(pointee_type); |
6877 | |
6878 | if (pointee_clang_type.IsAggregateType()) { |
6879 | return pointee_clang_type.GetIndexOfChildMemberWithName( |
6880 | name, omit_empty_base_classes, child_indexes); |
6881 | } |
6882 | } break; |
6883 | |
6884 | case clang::Type::Pointer: { |
6885 | CompilerType pointee_clang_type(GetPointeeType(type)); |
6886 | |
6887 | if (pointee_clang_type.IsAggregateType()) { |
6888 | return pointee_clang_type.GetIndexOfChildMemberWithName( |
6889 | name, omit_empty_base_classes, child_indexes); |
6890 | } |
6891 | } break; |
6892 | |
6893 | default: |
6894 | break; |
6895 | } |
6896 | } |
6897 | return 0; |
6898 | } |
6899 | |
6900 | // Get the index of the child of "clang_type" whose name matches. This function |
6901 | // doesn't descend into the children, but only looks one level deep and name |
6902 | // matches can include base class names. |
6903 | |
6904 | uint32_t |
6905 | TypeSystemClang::GetIndexOfChildWithName(lldb::opaque_compiler_type_t type, |
6906 | const char *name, |
6907 | bool omit_empty_base_classes) { |
6908 | if (type && name && name[0]) { |
6909 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
6910 | |
6911 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
6912 | |
6913 | switch (type_class) { |
6914 | case clang::Type::Record: |
6915 | if (GetCompleteType(type)) { |
6916 | const clang::RecordType *record_type = |
6917 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
6918 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
6919 | |
6920 | assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail ("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 6920, __extension__ __PRETTY_FUNCTION__)); |
6921 | uint32_t child_idx = 0; |
6922 | |
6923 | const clang::CXXRecordDecl *cxx_record_decl = |
6924 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
6925 | |
6926 | if (cxx_record_decl) { |
6927 | clang::CXXRecordDecl::base_class_const_iterator base_class, |
6928 | base_class_end; |
6929 | for (base_class = cxx_record_decl->bases_begin(), |
6930 | base_class_end = cxx_record_decl->bases_end(); |
6931 | base_class != base_class_end; ++base_class) { |
6932 | // Skip empty base classes |
6933 | clang::CXXRecordDecl *base_class_decl = |
6934 | llvm::cast<clang::CXXRecordDecl>( |
6935 | base_class->getType() |
6936 | ->castAs<clang::RecordType>() |
6937 | ->getDecl()); |
6938 | if (omit_empty_base_classes && |
6939 | !TypeSystemClang::RecordHasFields(base_class_decl)) |
6940 | continue; |
6941 | |
6942 | CompilerType base_class_clang_type = GetType(base_class->getType()); |
6943 | std::string base_class_type_name( |
6944 | base_class_clang_type.GetTypeName().AsCString("")); |
6945 | if (base_class_type_name == name) |
6946 | return child_idx; |
6947 | ++child_idx; |
6948 | } |
6949 | } |
6950 | |
6951 | // Try and find a field that matches NAME |
6952 | clang::RecordDecl::field_iterator field, field_end; |
6953 | llvm::StringRef name_sref(name); |
6954 | for (field = record_decl->field_begin(), |
6955 | field_end = record_decl->field_end(); |
6956 | field != field_end; ++field, ++child_idx) { |
6957 | if (field->getName().equals(name_sref)) |
6958 | return child_idx; |
6959 | } |
6960 | } |
6961 | break; |
6962 | |
6963 | case clang::Type::ObjCObject: |
6964 | case clang::Type::ObjCInterface: |
6965 | if (GetCompleteType(type)) { |
6966 | llvm::StringRef name_sref(name); |
6967 | const clang::ObjCObjectType *objc_class_type = |
6968 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
6969 | assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail ("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 6969, __extension__ __PRETTY_FUNCTION__)); |
6970 | if (objc_class_type) { |
6971 | uint32_t child_idx = 0; |
6972 | clang::ObjCInterfaceDecl *class_interface_decl = |
6973 | objc_class_type->getInterface(); |
6974 | |
6975 | if (class_interface_decl) { |
6976 | clang::ObjCInterfaceDecl::ivar_iterator ivar_pos, |
6977 | ivar_end = class_interface_decl->ivar_end(); |
6978 | clang::ObjCInterfaceDecl *superclass_interface_decl = |
6979 | class_interface_decl->getSuperClass(); |
6980 | |
6981 | for (ivar_pos = class_interface_decl->ivar_begin(); |
6982 | ivar_pos != ivar_end; ++ivar_pos, ++child_idx) { |
6983 | const clang::ObjCIvarDecl *ivar_decl = *ivar_pos; |
6984 | |
6985 | if (ivar_decl->getName().equals(name_sref)) { |
6986 | if ((!omit_empty_base_classes && superclass_interface_decl) || |
6987 | (omit_empty_base_classes && |
6988 | ObjCDeclHasIVars(superclass_interface_decl, true))) |
6989 | ++child_idx; |
6990 | |
6991 | return child_idx; |
6992 | } |
6993 | } |
6994 | |
6995 | if (superclass_interface_decl) { |
6996 | if (superclass_interface_decl->getName().equals(name_sref)) |
6997 | return 0; |
6998 | } |
6999 | } |
7000 | } |
7001 | } |
7002 | break; |
7003 | |
7004 | case clang::Type::ObjCObjectPointer: { |
7005 | CompilerType pointee_clang_type = GetType( |
7006 | llvm::cast<clang::ObjCObjectPointerType>(qual_type.getTypePtr()) |
7007 | ->getPointeeType()); |
7008 | return pointee_clang_type.GetIndexOfChildWithName( |
7009 | name, omit_empty_base_classes); |
7010 | } break; |
7011 | |
7012 | case clang::Type::ConstantArray: { |
7013 | // const clang::ConstantArrayType *array = |
7014 | // llvm::cast<clang::ConstantArrayType>(parent_qual_type.getTypePtr()); |
7015 | // const uint64_t element_count = |
7016 | // array->getSize().getLimitedValue(); |
7017 | // |
7018 | // if (idx < element_count) |
7019 | // { |
7020 | // std::pair<uint64_t, unsigned> field_type_info = |
7021 | // ast->getTypeInfo(array->getElementType()); |
7022 | // |
7023 | // char element_name[32]; |
7024 | // ::snprintf (element_name, sizeof (element_name), |
7025 | // "%s[%u]", parent_name ? parent_name : "", idx); |
7026 | // |
7027 | // child_name.assign(element_name); |
7028 | // assert(field_type_info.first % 8 == 0); |
7029 | // child_byte_size = field_type_info.first / 8; |
7030 | // child_byte_offset = idx * child_byte_size; |
7031 | // return array->getElementType().getAsOpaquePtr(); |
7032 | // } |
7033 | } break; |
7034 | |
7035 | // case clang::Type::MemberPointerType: |
7036 | // { |
7037 | // MemberPointerType *mem_ptr_type = |
7038 | // llvm::cast<MemberPointerType>(qual_type.getTypePtr()); |
7039 | // clang::QualType pointee_type = |
7040 | // mem_ptr_type->getPointeeType(); |
7041 | // |
7042 | // if (TypeSystemClang::IsAggregateType |
7043 | // (pointee_type.getAsOpaquePtr())) |
7044 | // { |
7045 | // return GetIndexOfChildWithName (ast, |
7046 | // mem_ptr_type->getPointeeType().getAsOpaquePtr(), |
7047 | // name); |
7048 | // } |
7049 | // } |
7050 | // break; |
7051 | // |
7052 | case clang::Type::LValueReference: |
7053 | case clang::Type::RValueReference: { |
7054 | const clang::ReferenceType *reference_type = |
7055 | llvm::cast<clang::ReferenceType>(qual_type.getTypePtr()); |
7056 | CompilerType pointee_type = GetType(reference_type->getPointeeType()); |
7057 | |
7058 | if (pointee_type.IsAggregateType()) { |
7059 | return pointee_type.GetIndexOfChildWithName(name, |
7060 | omit_empty_base_classes); |
7061 | } |
7062 | } break; |
7063 | |
7064 | case clang::Type::Pointer: { |
7065 | const clang::PointerType *pointer_type = |
7066 | llvm::cast<clang::PointerType>(qual_type.getTypePtr()); |
7067 | CompilerType pointee_type = GetType(pointer_type->getPointeeType()); |
7068 | |
7069 | if (pointee_type.IsAggregateType()) { |
7070 | return pointee_type.GetIndexOfChildWithName(name, |
7071 | omit_empty_base_classes); |
7072 | } else { |
7073 | // if (parent_name) |
7074 | // { |
7075 | // child_name.assign(1, '*'); |
7076 | // child_name += parent_name; |
7077 | // } |
7078 | // |
7079 | // // We have a pointer to an simple type |
7080 | // if (idx == 0) |
7081 | // { |
7082 | // std::pair<uint64_t, unsigned> clang_type_info |
7083 | // = ast->getTypeInfo(pointee_type); |
7084 | // assert(clang_type_info.first % 8 == 0); |
7085 | // child_byte_size = clang_type_info.first / 8; |
7086 | // child_byte_offset = 0; |
7087 | // return pointee_type.getAsOpaquePtr(); |
7088 | // } |
7089 | } |
7090 | } break; |
7091 | |
7092 | default: |
7093 | break; |
7094 | } |
7095 | } |
7096 | return UINT32_MAX(4294967295U); |
7097 | } |
7098 | |
7099 | size_t |
7100 | TypeSystemClang::GetNumTemplateArguments(lldb::opaque_compiler_type_t type) { |
7101 | if (!type) |
7102 | return 0; |
7103 | |
7104 | clang::QualType qual_type = RemoveWrappingTypes(GetCanonicalQualType(type)); |
7105 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
7106 | switch (type_class) { |
7107 | case clang::Type::Record: |
7108 | if (GetCompleteType(type)) { |
7109 | const clang::CXXRecordDecl *cxx_record_decl = |
7110 | qual_type->getAsCXXRecordDecl(); |
7111 | if (cxx_record_decl) { |
7112 | const clang::ClassTemplateSpecializationDecl *template_decl = |
7113 | llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>( |
7114 | cxx_record_decl); |
7115 | if (template_decl) |
7116 | return template_decl->getTemplateArgs().size(); |
7117 | } |
7118 | } |
7119 | break; |
7120 | |
7121 | default: |
7122 | break; |
7123 | } |
7124 | |
7125 | return 0; |
7126 | } |
7127 | |
7128 | const clang::ClassTemplateSpecializationDecl * |
7129 | TypeSystemClang::GetAsTemplateSpecialization( |
7130 | lldb::opaque_compiler_type_t type) { |
7131 | if (!type) |
7132 | return nullptr; |
7133 | |
7134 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
7135 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
7136 | switch (type_class) { |
7137 | case clang::Type::Record: { |
7138 | if (! GetCompleteType(type)) |
7139 | return nullptr; |
7140 | const clang::CXXRecordDecl *cxx_record_decl = |
7141 | qual_type->getAsCXXRecordDecl(); |
7142 | if (!cxx_record_decl) |
7143 | return nullptr; |
7144 | return llvm::dyn_cast<clang::ClassTemplateSpecializationDecl>( |
7145 | cxx_record_decl); |
7146 | } |
7147 | |
7148 | default: |
7149 | return nullptr; |
7150 | } |
7151 | } |
7152 | |
7153 | lldb::TemplateArgumentKind |
7154 | TypeSystemClang::GetTemplateArgumentKind(lldb::opaque_compiler_type_t type, |
7155 | size_t arg_idx) { |
7156 | const clang::ClassTemplateSpecializationDecl *template_decl = |
7157 | GetAsTemplateSpecialization(type); |
7158 | if (! template_decl || arg_idx >= template_decl->getTemplateArgs().size()) |
7159 | return eTemplateArgumentKindNull; |
7160 | |
7161 | switch (template_decl->getTemplateArgs()[arg_idx].getKind()) { |
7162 | case clang::TemplateArgument::Null: |
7163 | return eTemplateArgumentKindNull; |
7164 | |
7165 | case clang::TemplateArgument::NullPtr: |
7166 | return eTemplateArgumentKindNullPtr; |
7167 | |
7168 | case clang::TemplateArgument::Type: |
7169 | return eTemplateArgumentKindType; |
7170 | |
7171 | case clang::TemplateArgument::Declaration: |
7172 | return eTemplateArgumentKindDeclaration; |
7173 | |
7174 | case clang::TemplateArgument::Integral: |
7175 | return eTemplateArgumentKindIntegral; |
7176 | |
7177 | case clang::TemplateArgument::Template: |
7178 | return eTemplateArgumentKindTemplate; |
7179 | |
7180 | case clang::TemplateArgument::TemplateExpansion: |
7181 | return eTemplateArgumentKindTemplateExpansion; |
7182 | |
7183 | case clang::TemplateArgument::Expression: |
7184 | return eTemplateArgumentKindExpression; |
7185 | |
7186 | case clang::TemplateArgument::Pack: |
7187 | return eTemplateArgumentKindPack; |
7188 | } |
7189 | llvm_unreachable("Unhandled clang::TemplateArgument::ArgKind")::llvm::llvm_unreachable_internal("Unhandled clang::TemplateArgument::ArgKind" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 7189); |
7190 | } |
7191 | |
7192 | CompilerType |
7193 | TypeSystemClang::GetTypeTemplateArgument(lldb::opaque_compiler_type_t type, |
7194 | size_t idx) { |
7195 | const clang::ClassTemplateSpecializationDecl *template_decl = |
7196 | GetAsTemplateSpecialization(type); |
7197 | if (!template_decl || idx >= template_decl->getTemplateArgs().size()) |
7198 | return CompilerType(); |
7199 | |
7200 | const clang::TemplateArgument &template_arg = |
7201 | template_decl->getTemplateArgs()[idx]; |
7202 | if (template_arg.getKind() != clang::TemplateArgument::Type) |
7203 | return CompilerType(); |
7204 | |
7205 | return GetType(template_arg.getAsType()); |
7206 | } |
7207 | |
7208 | Optional<CompilerType::IntegralTemplateArgument> |
7209 | TypeSystemClang::GetIntegralTemplateArgument(lldb::opaque_compiler_type_t type, |
7210 | size_t idx) { |
7211 | const clang::ClassTemplateSpecializationDecl *template_decl = |
7212 | GetAsTemplateSpecialization(type); |
7213 | if (! template_decl || idx >= template_decl->getTemplateArgs().size()) |
7214 | return llvm::None; |
7215 | |
7216 | const clang::TemplateArgument &template_arg = |
7217 | template_decl->getTemplateArgs()[idx]; |
7218 | if (template_arg.getKind() != clang::TemplateArgument::Integral) |
7219 | return llvm::None; |
7220 | |
7221 | return { |
7222 | {template_arg.getAsIntegral(), GetType(template_arg.getIntegralType())}}; |
7223 | } |
7224 | |
7225 | CompilerType TypeSystemClang::GetTypeForFormatters(void *type) { |
7226 | if (type) |
7227 | return ClangUtil::RemoveFastQualifiers(CompilerType(this, type)); |
7228 | return CompilerType(); |
7229 | } |
7230 | |
7231 | clang::EnumDecl *TypeSystemClang::GetAsEnumDecl(const CompilerType &type) { |
7232 | const clang::EnumType *enutype = |
7233 | llvm::dyn_cast<clang::EnumType>(ClangUtil::GetCanonicalQualType(type)); |
7234 | if (enutype) |
7235 | return enutype->getDecl(); |
7236 | return nullptr; |
7237 | } |
7238 | |
7239 | clang::RecordDecl *TypeSystemClang::GetAsRecordDecl(const CompilerType &type) { |
7240 | const clang::RecordType *record_type = |
7241 | llvm::dyn_cast<clang::RecordType>(ClangUtil::GetCanonicalQualType(type)); |
7242 | if (record_type) |
7243 | return record_type->getDecl(); |
7244 | return nullptr; |
7245 | } |
7246 | |
7247 | clang::TagDecl *TypeSystemClang::GetAsTagDecl(const CompilerType &type) { |
7248 | return ClangUtil::GetAsTagDecl(type); |
7249 | } |
7250 | |
7251 | clang::TypedefNameDecl * |
7252 | TypeSystemClang::GetAsTypedefDecl(const CompilerType &type) { |
7253 | const clang::TypedefType *typedef_type = |
7254 | llvm::dyn_cast<clang::TypedefType>(ClangUtil::GetQualType(type)); |
7255 | if (typedef_type) |
7256 | return typedef_type->getDecl(); |
7257 | return nullptr; |
7258 | } |
7259 | |
7260 | clang::CXXRecordDecl * |
7261 | TypeSystemClang::GetAsCXXRecordDecl(lldb::opaque_compiler_type_t type) { |
7262 | return GetCanonicalQualType(type)->getAsCXXRecordDecl(); |
7263 | } |
7264 | |
7265 | clang::ObjCInterfaceDecl * |
7266 | TypeSystemClang::GetAsObjCInterfaceDecl(const CompilerType &type) { |
7267 | const clang::ObjCObjectType *objc_class_type = |
7268 | llvm::dyn_cast<clang::ObjCObjectType>( |
7269 | ClangUtil::GetCanonicalQualType(type)); |
7270 | if (objc_class_type) |
7271 | return objc_class_type->getInterface(); |
7272 | return nullptr; |
7273 | } |
7274 | |
7275 | clang::FieldDecl *TypeSystemClang::AddFieldToRecordType( |
7276 | const CompilerType &type, llvm::StringRef name, |
7277 | const CompilerType &field_clang_type, AccessType access, |
7278 | uint32_t bitfield_bit_size) { |
7279 | if (!type.IsValid() || !field_clang_type.IsValid()) |
7280 | return nullptr; |
7281 | TypeSystemClang *ast = |
7282 | llvm::dyn_cast_or_null<TypeSystemClang>(type.GetTypeSystem()); |
7283 | if (!ast) |
7284 | return nullptr; |
7285 | clang::ASTContext &clang_ast = ast->getASTContext(); |
7286 | clang::IdentifierInfo *ident = nullptr; |
7287 | if (!name.empty()) |
7288 | ident = &clang_ast.Idents.get(name); |
7289 | |
7290 | clang::FieldDecl *field = nullptr; |
7291 | |
7292 | clang::Expr *bit_width = nullptr; |
7293 | if (bitfield_bit_size != 0) { |
7294 | llvm::APInt bitfield_bit_size_apint(clang_ast.getTypeSize(clang_ast.IntTy), |
7295 | bitfield_bit_size); |
7296 | bit_width = new (clang_ast) |
7297 | clang::IntegerLiteral(clang_ast, bitfield_bit_size_apint, |
7298 | clang_ast.IntTy, clang::SourceLocation()); |
7299 | } |
7300 | |
7301 | clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); |
7302 | if (record_decl) { |
7303 | field = clang::FieldDecl::CreateDeserialized(clang_ast, 0); |
7304 | field->setDeclContext(record_decl); |
7305 | field->setDeclName(ident); |
7306 | field->setType(ClangUtil::GetQualType(field_clang_type)); |
7307 | if (bit_width) |
7308 | field->setBitWidth(bit_width); |
7309 | SetMemberOwningModule(field, record_decl); |
7310 | |
7311 | if (name.empty()) { |
7312 | // Determine whether this field corresponds to an anonymous struct or |
7313 | // union. |
7314 | if (const clang::TagType *TagT = |
7315 | field->getType()->getAs<clang::TagType>()) { |
7316 | if (clang::RecordDecl *Rec = |
7317 | llvm::dyn_cast<clang::RecordDecl>(TagT->getDecl())) |
7318 | if (!Rec->getDeclName()) { |
7319 | Rec->setAnonymousStructOrUnion(true); |
7320 | field->setImplicit(); |
7321 | } |
7322 | } |
7323 | } |
7324 | |
7325 | if (field) { |
7326 | clang::AccessSpecifier access_specifier = |
7327 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access); |
7328 | field->setAccess(access_specifier); |
7329 | |
7330 | if (clang::CXXRecordDecl *cxx_record_decl = |
7331 | llvm::dyn_cast<CXXRecordDecl>(record_decl)) { |
7332 | AddAccessSpecifierDecl(cxx_record_decl, ast->getASTContext(), |
7333 | ast->GetCXXRecordDeclAccess(cxx_record_decl), |
7334 | access_specifier); |
7335 | ast->SetCXXRecordDeclAccess(cxx_record_decl, access_specifier); |
7336 | } |
7337 | record_decl->addDecl(field); |
7338 | |
7339 | VerifyDecl(field); |
7340 | } |
7341 | } else { |
7342 | clang::ObjCInterfaceDecl *class_interface_decl = |
7343 | ast->GetAsObjCInterfaceDecl(type); |
7344 | |
7345 | if (class_interface_decl) { |
7346 | const bool is_synthesized = false; |
7347 | |
7348 | field_clang_type.GetCompleteType(); |
7349 | |
7350 | auto *ivar = clang::ObjCIvarDecl::CreateDeserialized(clang_ast, 0); |
7351 | ivar->setDeclContext(class_interface_decl); |
7352 | ivar->setDeclName(ident); |
7353 | ivar->setType(ClangUtil::GetQualType(field_clang_type)); |
7354 | ivar->setAccessControl(ConvertAccessTypeToObjCIvarAccessControl(access)); |
7355 | if (bit_width) |
7356 | ivar->setBitWidth(bit_width); |
7357 | ivar->setSynthesize(is_synthesized); |
7358 | field = ivar; |
7359 | SetMemberOwningModule(field, class_interface_decl); |
7360 | |
7361 | if (field) { |
7362 | class_interface_decl->addDecl(field); |
7363 | |
7364 | VerifyDecl(field); |
7365 | } |
7366 | } |
7367 | } |
7368 | return field; |
7369 | } |
7370 | |
7371 | void TypeSystemClang::BuildIndirectFields(const CompilerType &type) { |
7372 | if (!type) |
7373 | return; |
7374 | |
7375 | TypeSystemClang *ast = llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); |
7376 | if (!ast) |
7377 | return; |
7378 | |
7379 | clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); |
7380 | |
7381 | if (!record_decl) |
7382 | return; |
7383 | |
7384 | typedef llvm::SmallVector<clang::IndirectFieldDecl *, 1> IndirectFieldVector; |
7385 | |
7386 | IndirectFieldVector indirect_fields; |
7387 | clang::RecordDecl::field_iterator field_pos; |
7388 | clang::RecordDecl::field_iterator field_end_pos = record_decl->field_end(); |
7389 | clang::RecordDecl::field_iterator last_field_pos = field_end_pos; |
7390 | for (field_pos = record_decl->field_begin(); field_pos != field_end_pos; |
7391 | last_field_pos = field_pos++) { |
7392 | if (field_pos->isAnonymousStructOrUnion()) { |
7393 | clang::QualType field_qual_type = field_pos->getType(); |
7394 | |
7395 | const clang::RecordType *field_record_type = |
7396 | field_qual_type->getAs<clang::RecordType>(); |
7397 | |
7398 | if (!field_record_type) |
7399 | continue; |
7400 | |
7401 | clang::RecordDecl *field_record_decl = field_record_type->getDecl(); |
7402 | |
7403 | if (!field_record_decl) |
7404 | continue; |
7405 | |
7406 | for (clang::RecordDecl::decl_iterator |
7407 | di = field_record_decl->decls_begin(), |
7408 | de = field_record_decl->decls_end(); |
7409 | di != de; ++di) { |
7410 | if (clang::FieldDecl *nested_field_decl = |
7411 | llvm::dyn_cast<clang::FieldDecl>(*di)) { |
7412 | clang::NamedDecl **chain = |
7413 | new (ast->getASTContext()) clang::NamedDecl *[2]; |
7414 | chain[0] = *field_pos; |
7415 | chain[1] = nested_field_decl; |
7416 | clang::IndirectFieldDecl *indirect_field = |
7417 | clang::IndirectFieldDecl::Create( |
7418 | ast->getASTContext(), record_decl, clang::SourceLocation(), |
7419 | nested_field_decl->getIdentifier(), |
7420 | nested_field_decl->getType(), {chain, 2}); |
7421 | SetMemberOwningModule(indirect_field, record_decl); |
7422 | |
7423 | indirect_field->setImplicit(); |
7424 | |
7425 | indirect_field->setAccess(TypeSystemClang::UnifyAccessSpecifiers( |
7426 | field_pos->getAccess(), nested_field_decl->getAccess())); |
7427 | |
7428 | indirect_fields.push_back(indirect_field); |
7429 | } else if (clang::IndirectFieldDecl *nested_indirect_field_decl = |
7430 | llvm::dyn_cast<clang::IndirectFieldDecl>(*di)) { |
7431 | size_t nested_chain_size = |
7432 | nested_indirect_field_decl->getChainingSize(); |
7433 | clang::NamedDecl **chain = new (ast->getASTContext()) |
7434 | clang::NamedDecl *[nested_chain_size + 1]; |
7435 | chain[0] = *field_pos; |
7436 | |
7437 | int chain_index = 1; |
7438 | for (clang::IndirectFieldDecl::chain_iterator |
7439 | nci = nested_indirect_field_decl->chain_begin(), |
7440 | nce = nested_indirect_field_decl->chain_end(); |
7441 | nci < nce; ++nci) { |
7442 | chain[chain_index] = *nci; |
7443 | chain_index++; |
7444 | } |
7445 | |
7446 | clang::IndirectFieldDecl *indirect_field = |
7447 | clang::IndirectFieldDecl::Create( |
7448 | ast->getASTContext(), record_decl, clang::SourceLocation(), |
7449 | nested_indirect_field_decl->getIdentifier(), |
7450 | nested_indirect_field_decl->getType(), |
7451 | {chain, nested_chain_size + 1}); |
7452 | SetMemberOwningModule(indirect_field, record_decl); |
7453 | |
7454 | indirect_field->setImplicit(); |
7455 | |
7456 | indirect_field->setAccess(TypeSystemClang::UnifyAccessSpecifiers( |
7457 | field_pos->getAccess(), nested_indirect_field_decl->getAccess())); |
7458 | |
7459 | indirect_fields.push_back(indirect_field); |
7460 | } |
7461 | } |
7462 | } |
7463 | } |
7464 | |
7465 | // Check the last field to see if it has an incomplete array type as its last |
7466 | // member and if it does, the tell the record decl about it |
7467 | if (last_field_pos != field_end_pos) { |
7468 | if (last_field_pos->getType()->isIncompleteArrayType()) |
7469 | record_decl->hasFlexibleArrayMember(); |
7470 | } |
7471 | |
7472 | for (IndirectFieldVector::iterator ifi = indirect_fields.begin(), |
7473 | ife = indirect_fields.end(); |
7474 | ifi < ife; ++ifi) { |
7475 | record_decl->addDecl(*ifi); |
7476 | } |
7477 | } |
7478 | |
7479 | void TypeSystemClang::SetIsPacked(const CompilerType &type) { |
7480 | if (type) { |
7481 | TypeSystemClang *ast = |
7482 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); |
7483 | if (ast) { |
7484 | clang::RecordDecl *record_decl = GetAsRecordDecl(type); |
7485 | |
7486 | if (!record_decl) |
7487 | return; |
7488 | |
7489 | record_decl->addAttr( |
7490 | clang::PackedAttr::CreateImplicit(ast->getASTContext())); |
7491 | } |
7492 | } |
7493 | } |
7494 | |
7495 | clang::VarDecl *TypeSystemClang::AddVariableToRecordType( |
7496 | const CompilerType &type, llvm::StringRef name, |
7497 | const CompilerType &var_type, AccessType access) { |
7498 | if (!type.IsValid() || !var_type.IsValid()) |
7499 | return nullptr; |
7500 | |
7501 | TypeSystemClang *ast = llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); |
7502 | if (!ast) |
7503 | return nullptr; |
7504 | |
7505 | clang::RecordDecl *record_decl = ast->GetAsRecordDecl(type); |
7506 | if (!record_decl) |
7507 | return nullptr; |
7508 | |
7509 | clang::VarDecl *var_decl = nullptr; |
7510 | clang::IdentifierInfo *ident = nullptr; |
7511 | if (!name.empty()) |
7512 | ident = &ast->getASTContext().Idents.get(name); |
7513 | |
7514 | var_decl = clang::VarDecl::CreateDeserialized(ast->getASTContext(), 0); |
7515 | var_decl->setDeclContext(record_decl); |
7516 | var_decl->setDeclName(ident); |
7517 | var_decl->setType(ClangUtil::GetQualType(var_type)); |
7518 | var_decl->setStorageClass(clang::SC_Static); |
7519 | SetMemberOwningModule(var_decl, record_decl); |
7520 | if (!var_decl) |
7521 | return nullptr; |
7522 | |
7523 | var_decl->setAccess( |
7524 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access)); |
7525 | record_decl->addDecl(var_decl); |
7526 | |
7527 | VerifyDecl(var_decl); |
7528 | |
7529 | return var_decl; |
7530 | } |
7531 | |
7532 | void TypeSystemClang::SetIntegerInitializerForVariable( |
7533 | VarDecl *var, const llvm::APInt &init_value) { |
7534 | assert(!var->hasInit() && "variable already initialized")(static_cast <bool> (!var->hasInit() && "variable already initialized" ) ? void (0) : __assert_fail ("!var->hasInit() && \"variable already initialized\"" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 7534, __extension__ __PRETTY_FUNCTION__)); |
7535 | |
7536 | clang::ASTContext &ast = var->getASTContext(); |
7537 | QualType qt = var->getType(); |
7538 | assert(qt->isIntegralOrEnumerationType() &&(static_cast <bool> (qt->isIntegralOrEnumerationType () && "only integer or enum types supported") ? void ( 0) : __assert_fail ("qt->isIntegralOrEnumerationType() && \"only integer or enum types supported\"" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 7539, __extension__ __PRETTY_FUNCTION__)) |
7539 | "only integer or enum types supported")(static_cast <bool> (qt->isIntegralOrEnumerationType () && "only integer or enum types supported") ? void ( 0) : __assert_fail ("qt->isIntegralOrEnumerationType() && \"only integer or enum types supported\"" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 7539, __extension__ __PRETTY_FUNCTION__)); |
7540 | // If the variable is an enum type, take the underlying integer type as |
7541 | // the type of the integer literal. |
7542 | if (const EnumType *enum_type = llvm::dyn_cast<EnumType>(qt.getTypePtr())) { |
7543 | const EnumDecl *enum_decl = enum_type->getDecl(); |
7544 | qt = enum_decl->getIntegerType(); |
7545 | } |
7546 | var->setInit(IntegerLiteral::Create(ast, init_value, qt.getUnqualifiedType(), |
7547 | SourceLocation())); |
7548 | } |
7549 | |
7550 | void TypeSystemClang::SetFloatingInitializerForVariable( |
7551 | clang::VarDecl *var, const llvm::APFloat &init_value) { |
7552 | assert(!var->hasInit() && "variable already initialized")(static_cast <bool> (!var->hasInit() && "variable already initialized" ) ? void (0) : __assert_fail ("!var->hasInit() && \"variable already initialized\"" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 7552, __extension__ __PRETTY_FUNCTION__)); |
7553 | |
7554 | clang::ASTContext &ast = var->getASTContext(); |
7555 | QualType qt = var->getType(); |
7556 | assert(qt->isFloatingType() && "only floating point types supported")(static_cast <bool> (qt->isFloatingType() && "only floating point types supported") ? void (0) : __assert_fail ("qt->isFloatingType() && \"only floating point types supported\"" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 7556, __extension__ __PRETTY_FUNCTION__)); |
7557 | var->setInit(FloatingLiteral::Create( |
7558 | ast, init_value, true, qt.getUnqualifiedType(), SourceLocation())); |
7559 | } |
7560 | |
7561 | clang::CXXMethodDecl *TypeSystemClang::AddMethodToCXXRecordType( |
7562 | lldb::opaque_compiler_type_t type, llvm::StringRef name, |
7563 | const char *mangled_name, const CompilerType &method_clang_type, |
7564 | lldb::AccessType access, bool is_virtual, bool is_static, bool is_inline, |
7565 | bool is_explicit, bool is_attr_used, bool is_artificial) { |
7566 | if (!type || !method_clang_type.IsValid() || name.empty()) |
7567 | return nullptr; |
7568 | |
7569 | clang::QualType record_qual_type(GetCanonicalQualType(type)); |
7570 | |
7571 | clang::CXXRecordDecl *cxx_record_decl = |
7572 | record_qual_type->getAsCXXRecordDecl(); |
7573 | |
7574 | if (cxx_record_decl == nullptr) |
7575 | return nullptr; |
7576 | |
7577 | clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type)); |
7578 | |
7579 | clang::CXXMethodDecl *cxx_method_decl = nullptr; |
7580 | |
7581 | clang::DeclarationName decl_name(&getASTContext().Idents.get(name)); |
7582 | |
7583 | const clang::FunctionType *function_type = |
7584 | llvm::dyn_cast<clang::FunctionType>(method_qual_type.getTypePtr()); |
7585 | |
7586 | if (function_type == nullptr) |
7587 | return nullptr; |
7588 | |
7589 | const clang::FunctionProtoType *method_function_prototype( |
7590 | llvm::dyn_cast<clang::FunctionProtoType>(function_type)); |
7591 | |
7592 | if (!method_function_prototype) |
7593 | return nullptr; |
7594 | |
7595 | unsigned int num_params = method_function_prototype->getNumParams(); |
7596 | |
7597 | clang::CXXDestructorDecl *cxx_dtor_decl(nullptr); |
7598 | clang::CXXConstructorDecl *cxx_ctor_decl(nullptr); |
7599 | |
7600 | if (is_artificial) |
7601 | return nullptr; // skip everything artificial |
7602 | |
7603 | const clang::ExplicitSpecifier explicit_spec( |
7604 | nullptr /*expr*/, is_explicit ? clang::ExplicitSpecKind::ResolvedTrue |
7605 | : clang::ExplicitSpecKind::ResolvedFalse); |
7606 | |
7607 | if (name.startswith("~")) { |
7608 | cxx_dtor_decl = |
7609 | clang::CXXDestructorDecl::CreateDeserialized(getASTContext(), 0); |
7610 | cxx_dtor_decl->setDeclContext(cxx_record_decl); |
7611 | cxx_dtor_decl->setDeclName( |
7612 | getASTContext().DeclarationNames.getCXXDestructorName( |
7613 | getASTContext().getCanonicalType(record_qual_type))); |
7614 | cxx_dtor_decl->setType(method_qual_type); |
7615 | cxx_dtor_decl->setImplicit(is_artificial); |
7616 | cxx_dtor_decl->setInlineSpecified(is_inline); |
7617 | cxx_dtor_decl->setConstexprKind(ConstexprSpecKind::Unspecified); |
7618 | cxx_method_decl = cxx_dtor_decl; |
7619 | } else if (decl_name == cxx_record_decl->getDeclName()) { |
7620 | cxx_ctor_decl = clang::CXXConstructorDecl::CreateDeserialized( |
7621 | getASTContext(), 0, 0); |
7622 | cxx_ctor_decl->setDeclContext(cxx_record_decl); |
7623 | cxx_ctor_decl->setDeclName( |
7624 | getASTContext().DeclarationNames.getCXXConstructorName( |
7625 | getASTContext().getCanonicalType(record_qual_type))); |
7626 | cxx_ctor_decl->setType(method_qual_type); |
7627 | cxx_ctor_decl->setImplicit(is_artificial); |
7628 | cxx_ctor_decl->setInlineSpecified(is_inline); |
7629 | cxx_ctor_decl->setConstexprKind(ConstexprSpecKind::Unspecified); |
7630 | cxx_ctor_decl->setNumCtorInitializers(0); |
7631 | cxx_ctor_decl->setExplicitSpecifier(explicit_spec); |
7632 | cxx_method_decl = cxx_ctor_decl; |
7633 | } else { |
7634 | clang::StorageClass SC = is_static ? clang::SC_Static : clang::SC_None; |
7635 | clang::OverloadedOperatorKind op_kind = clang::NUM_OVERLOADED_OPERATORS; |
7636 | |
7637 | if (IsOperator(name, op_kind)) { |
7638 | if (op_kind != clang::NUM_OVERLOADED_OPERATORS) { |
7639 | // Check the number of operator parameters. Sometimes we have seen bad |
7640 | // DWARF that doesn't correctly describe operators and if we try to |
7641 | // create a method and add it to the class, clang will assert and |
7642 | // crash, so we need to make sure things are acceptable. |
7643 | const bool is_method = true; |
7644 | if (!TypeSystemClang::CheckOverloadedOperatorKindParameterCount( |
7645 | is_method, op_kind, num_params)) |
7646 | return nullptr; |
7647 | cxx_method_decl = |
7648 | clang::CXXMethodDecl::CreateDeserialized(getASTContext(), 0); |
7649 | cxx_method_decl->setDeclContext(cxx_record_decl); |
7650 | cxx_method_decl->setDeclName( |
7651 | getASTContext().DeclarationNames.getCXXOperatorName(op_kind)); |
7652 | cxx_method_decl->setType(method_qual_type); |
7653 | cxx_method_decl->setStorageClass(SC); |
7654 | cxx_method_decl->setInlineSpecified(is_inline); |
7655 | cxx_method_decl->setConstexprKind(ConstexprSpecKind::Unspecified); |
7656 | } else if (num_params == 0) { |
7657 | // Conversion operators don't take params... |
7658 | auto *cxx_conversion_decl = |
7659 | clang::CXXConversionDecl::CreateDeserialized(getASTContext(), 0); |
7660 | cxx_conversion_decl->setDeclContext(cxx_record_decl); |
7661 | cxx_conversion_decl->setDeclName( |
7662 | getASTContext().DeclarationNames.getCXXConversionFunctionName( |
7663 | getASTContext().getCanonicalType( |
7664 | function_type->getReturnType()))); |
7665 | cxx_conversion_decl->setType(method_qual_type); |
7666 | cxx_conversion_decl->setInlineSpecified(is_inline); |
7667 | cxx_conversion_decl->setExplicitSpecifier(explicit_spec); |
7668 | cxx_conversion_decl->setConstexprKind(ConstexprSpecKind::Unspecified); |
7669 | cxx_method_decl = cxx_conversion_decl; |
7670 | } |
7671 | } |
7672 | |
7673 | if (cxx_method_decl == nullptr) { |
7674 | cxx_method_decl = |
7675 | clang::CXXMethodDecl::CreateDeserialized(getASTContext(), 0); |
7676 | cxx_method_decl->setDeclContext(cxx_record_decl); |
7677 | cxx_method_decl->setDeclName(decl_name); |
7678 | cxx_method_decl->setType(method_qual_type); |
7679 | cxx_method_decl->setInlineSpecified(is_inline); |
7680 | cxx_method_decl->setStorageClass(SC); |
7681 | cxx_method_decl->setConstexprKind(ConstexprSpecKind::Unspecified); |
7682 | } |
7683 | } |
7684 | SetMemberOwningModule(cxx_method_decl, cxx_record_decl); |
7685 | |
7686 | clang::AccessSpecifier access_specifier = |
7687 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access); |
7688 | |
7689 | cxx_method_decl->setAccess(access_specifier); |
7690 | cxx_method_decl->setVirtualAsWritten(is_virtual); |
7691 | |
7692 | if (is_attr_used) |
7693 | cxx_method_decl->addAttr(clang::UsedAttr::CreateImplicit(getASTContext())); |
7694 | |
7695 | if (mangled_name != nullptr) { |
7696 | cxx_method_decl->addAttr(clang::AsmLabelAttr::CreateImplicit( |
7697 | getASTContext(), mangled_name, /*literal=*/false)); |
7698 | } |
7699 | |
7700 | // Populate the method decl with parameter decls |
7701 | |
7702 | llvm::SmallVector<clang::ParmVarDecl *, 12> params; |
7703 | |
7704 | for (unsigned param_index = 0; param_index < num_params; ++param_index) { |
7705 | params.push_back(clang::ParmVarDecl::Create( |
7706 | getASTContext(), cxx_method_decl, clang::SourceLocation(), |
7707 | clang::SourceLocation(), |
7708 | nullptr, // anonymous |
7709 | method_function_prototype->getParamType(param_index), nullptr, |
7710 | clang::SC_None, nullptr)); |
7711 | } |
7712 | |
7713 | cxx_method_decl->setParams(llvm::ArrayRef<clang::ParmVarDecl *>(params)); |
7714 | |
7715 | AddAccessSpecifierDecl(cxx_record_decl, getASTContext(), |
7716 | GetCXXRecordDeclAccess(cxx_record_decl), |
7717 | access_specifier); |
7718 | SetCXXRecordDeclAccess(cxx_record_decl, access_specifier); |
7719 | |
7720 | cxx_record_decl->addDecl(cxx_method_decl); |
7721 | |
7722 | // Sometimes the debug info will mention a constructor (default/copy/move), |
7723 | // destructor, or assignment operator (copy/move) but there won't be any |
7724 | // version of this in the code. So we check if the function was artificially |
7725 | // generated and if it is trivial and this lets the compiler/backend know |
7726 | // that it can inline the IR for these when it needs to and we can avoid a |
7727 | // "missing function" error when running expressions. |
7728 | |
7729 | if (is_artificial) { |
7730 | if (cxx_ctor_decl && ((cxx_ctor_decl->isDefaultConstructor() && |
7731 | cxx_record_decl->hasTrivialDefaultConstructor()) || |
7732 | (cxx_ctor_decl->isCopyConstructor() && |
7733 | cxx_record_decl->hasTrivialCopyConstructor()) || |
7734 | (cxx_ctor_decl->isMoveConstructor() && |
7735 | cxx_record_decl->hasTrivialMoveConstructor()))) { |
7736 | cxx_ctor_decl->setDefaulted(); |
7737 | cxx_ctor_decl->setTrivial(true); |
7738 | } else if (cxx_dtor_decl) { |
7739 | if (cxx_record_decl->hasTrivialDestructor()) { |
7740 | cxx_dtor_decl->setDefaulted(); |
7741 | cxx_dtor_decl->setTrivial(true); |
7742 | } |
7743 | } else if ((cxx_method_decl->isCopyAssignmentOperator() && |
7744 | cxx_record_decl->hasTrivialCopyAssignment()) || |
7745 | (cxx_method_decl->isMoveAssignmentOperator() && |
7746 | cxx_record_decl->hasTrivialMoveAssignment())) { |
7747 | cxx_method_decl->setDefaulted(); |
7748 | cxx_method_decl->setTrivial(true); |
7749 | } |
7750 | } |
7751 | |
7752 | VerifyDecl(cxx_method_decl); |
7753 | |
7754 | return cxx_method_decl; |
7755 | } |
7756 | |
7757 | void TypeSystemClang::AddMethodOverridesForCXXRecordType( |
7758 | lldb::opaque_compiler_type_t type) { |
7759 | if (auto *record = GetAsCXXRecordDecl(type)) |
7760 | for (auto *method : record->methods()) |
7761 | addOverridesForMethod(method); |
7762 | } |
7763 | |
7764 | #pragma mark C++ Base Classes |
7765 | |
7766 | std::unique_ptr<clang::CXXBaseSpecifier> |
7767 | TypeSystemClang::CreateBaseClassSpecifier(lldb::opaque_compiler_type_t type, |
7768 | AccessType access, bool is_virtual, |
7769 | bool base_of_class) { |
7770 | if (!type) |
7771 | return nullptr; |
7772 | |
7773 | return std::make_unique<clang::CXXBaseSpecifier>( |
7774 | clang::SourceRange(), is_virtual, base_of_class, |
7775 | TypeSystemClang::ConvertAccessTypeToAccessSpecifier(access), |
7776 | getASTContext().getTrivialTypeSourceInfo(GetQualType(type)), |
7777 | clang::SourceLocation()); |
7778 | } |
7779 | |
7780 | bool TypeSystemClang::TransferBaseClasses( |
7781 | lldb::opaque_compiler_type_t type, |
7782 | std::vector<std::unique_ptr<clang::CXXBaseSpecifier>> bases) { |
7783 | if (!type) |
7784 | return false; |
7785 | clang::CXXRecordDecl *cxx_record_decl = GetAsCXXRecordDecl(type); |
7786 | if (!cxx_record_decl) |
7787 | return false; |
7788 | std::vector<clang::CXXBaseSpecifier *> raw_bases; |
7789 | raw_bases.reserve(bases.size()); |
7790 | |
7791 | // Clang will make a copy of them, so it's ok that we pass pointers that we're |
7792 | // about to destroy. |
7793 | for (auto &b : bases) |
7794 | raw_bases.push_back(b.get()); |
7795 | cxx_record_decl->setBases(raw_bases.data(), raw_bases.size()); |
7796 | return true; |
7797 | } |
7798 | |
7799 | bool TypeSystemClang::SetObjCSuperClass( |
7800 | const CompilerType &type, const CompilerType &superclass_clang_type) { |
7801 | TypeSystemClang *ast = |
7802 | llvm::dyn_cast_or_null<TypeSystemClang>(type.GetTypeSystem()); |
7803 | if (!ast) |
7804 | return false; |
7805 | clang::ASTContext &clang_ast = ast->getASTContext(); |
7806 | |
7807 | if (type && superclass_clang_type.IsValid() && |
7808 | superclass_clang_type.GetTypeSystem() == type.GetTypeSystem()) { |
7809 | clang::ObjCInterfaceDecl *class_interface_decl = |
7810 | GetAsObjCInterfaceDecl(type); |
7811 | clang::ObjCInterfaceDecl *super_interface_decl = |
7812 | GetAsObjCInterfaceDecl(superclass_clang_type); |
7813 | if (class_interface_decl && super_interface_decl) { |
7814 | class_interface_decl->setSuperClass(clang_ast.getTrivialTypeSourceInfo( |
7815 | clang_ast.getObjCInterfaceType(super_interface_decl))); |
7816 | return true; |
7817 | } |
7818 | } |
7819 | return false; |
7820 | } |
7821 | |
7822 | bool TypeSystemClang::AddObjCClassProperty( |
7823 | const CompilerType &type, const char *property_name, |
7824 | const CompilerType &property_clang_type, clang::ObjCIvarDecl *ivar_decl, |
7825 | const char *property_setter_name, const char *property_getter_name, |
7826 | uint32_t property_attributes, ClangASTMetadata *metadata) { |
7827 | if (!type || !property_clang_type.IsValid() || property_name == nullptr || |
7828 | property_name[0] == '\0') |
7829 | return false; |
7830 | TypeSystemClang *ast = llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); |
7831 | if (!ast) |
7832 | return false; |
7833 | clang::ASTContext &clang_ast = ast->getASTContext(); |
7834 | |
7835 | clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); |
7836 | if (!class_interface_decl) |
7837 | return false; |
7838 | |
7839 | CompilerType property_clang_type_to_access; |
7840 | |
7841 | if (property_clang_type.IsValid()) |
7842 | property_clang_type_to_access = property_clang_type; |
7843 | else if (ivar_decl) |
7844 | property_clang_type_to_access = ast->GetType(ivar_decl->getType()); |
7845 | |
7846 | if (!class_interface_decl || !property_clang_type_to_access.IsValid()) |
7847 | return false; |
7848 | |
7849 | clang::TypeSourceInfo *prop_type_source; |
7850 | if (ivar_decl) |
7851 | prop_type_source = clang_ast.getTrivialTypeSourceInfo(ivar_decl->getType()); |
7852 | else |
7853 | prop_type_source = clang_ast.getTrivialTypeSourceInfo( |
7854 | ClangUtil::GetQualType(property_clang_type)); |
7855 | |
7856 | clang::ObjCPropertyDecl *property_decl = |
7857 | clang::ObjCPropertyDecl::CreateDeserialized(clang_ast, 0); |
7858 | property_decl->setDeclContext(class_interface_decl); |
7859 | property_decl->setDeclName(&clang_ast.Idents.get(property_name)); |
7860 | property_decl->setType(ivar_decl |
7861 | ? ivar_decl->getType() |
7862 | : ClangUtil::GetQualType(property_clang_type), |
7863 | prop_type_source); |
7864 | SetMemberOwningModule(property_decl, class_interface_decl); |
7865 | |
7866 | if (!property_decl) |
7867 | return false; |
7868 | |
7869 | if (metadata) |
7870 | ast->SetMetadata(property_decl, *metadata); |
7871 | |
7872 | class_interface_decl->addDecl(property_decl); |
7873 | |
7874 | clang::Selector setter_sel, getter_sel; |
7875 | |
7876 | if (property_setter_name) { |
7877 | std::string property_setter_no_colon(property_setter_name, |
7878 | strlen(property_setter_name) - 1); |
7879 | clang::IdentifierInfo *setter_ident = |
7880 | &clang_ast.Idents.get(property_setter_no_colon); |
7881 | setter_sel = clang_ast.Selectors.getSelector(1, &setter_ident); |
7882 | } else if (!(property_attributes & DW_APPLE_PROPERTY_readonly)) { |
7883 | std::string setter_sel_string("set"); |
7884 | setter_sel_string.push_back(::toupper(property_name[0])); |
7885 | setter_sel_string.append(&property_name[1]); |
7886 | clang::IdentifierInfo *setter_ident = |
7887 | &clang_ast.Idents.get(setter_sel_string); |
7888 | setter_sel = clang_ast.Selectors.getSelector(1, &setter_ident); |
7889 | } |
7890 | property_decl->setSetterName(setter_sel); |
7891 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_setter); |
7892 | |
7893 | if (property_getter_name != nullptr) { |
7894 | clang::IdentifierInfo *getter_ident = |
7895 | &clang_ast.Idents.get(property_getter_name); |
7896 | getter_sel = clang_ast.Selectors.getSelector(0, &getter_ident); |
7897 | } else { |
7898 | clang::IdentifierInfo *getter_ident = &clang_ast.Idents.get(property_name); |
7899 | getter_sel = clang_ast.Selectors.getSelector(0, &getter_ident); |
7900 | } |
7901 | property_decl->setGetterName(getter_sel); |
7902 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_getter); |
7903 | |
7904 | if (ivar_decl) |
7905 | property_decl->setPropertyIvarDecl(ivar_decl); |
7906 | |
7907 | if (property_attributes & DW_APPLE_PROPERTY_readonly) |
7908 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_readonly); |
7909 | if (property_attributes & DW_APPLE_PROPERTY_readwrite) |
7910 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_readwrite); |
7911 | if (property_attributes & DW_APPLE_PROPERTY_assign) |
7912 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_assign); |
7913 | if (property_attributes & DW_APPLE_PROPERTY_retain) |
7914 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_retain); |
7915 | if (property_attributes & DW_APPLE_PROPERTY_copy) |
7916 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_copy); |
7917 | if (property_attributes & DW_APPLE_PROPERTY_nonatomic) |
7918 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_nonatomic); |
7919 | if (property_attributes & ObjCPropertyAttribute::kind_nullability) |
7920 | property_decl->setPropertyAttributes( |
7921 | ObjCPropertyAttribute::kind_nullability); |
7922 | if (property_attributes & ObjCPropertyAttribute::kind_null_resettable) |
7923 | property_decl->setPropertyAttributes( |
7924 | ObjCPropertyAttribute::kind_null_resettable); |
7925 | if (property_attributes & ObjCPropertyAttribute::kind_class) |
7926 | property_decl->setPropertyAttributes(ObjCPropertyAttribute::kind_class); |
7927 | |
7928 | const bool isInstance = |
7929 | (property_attributes & ObjCPropertyAttribute::kind_class) == 0; |
7930 | |
7931 | clang::ObjCMethodDecl *getter = nullptr; |
7932 | if (!getter_sel.isNull()) |
7933 | getter = isInstance ? class_interface_decl->lookupInstanceMethod(getter_sel) |
7934 | : class_interface_decl->lookupClassMethod(getter_sel); |
7935 | if (!getter_sel.isNull() && !getter) { |
7936 | const bool isVariadic = false; |
7937 | const bool isPropertyAccessor = true; |
7938 | const bool isSynthesizedAccessorStub = false; |
7939 | const bool isImplicitlyDeclared = true; |
7940 | const bool isDefined = false; |
7941 | const clang::ObjCMethodDecl::ImplementationControl impControl = |
7942 | clang::ObjCMethodDecl::None; |
7943 | const bool HasRelatedResultType = false; |
7944 | |
7945 | getter = clang::ObjCMethodDecl::CreateDeserialized(clang_ast, 0); |
7946 | getter->setDeclName(getter_sel); |
7947 | getter->setReturnType(ClangUtil::GetQualType(property_clang_type_to_access)); |
7948 | getter->setDeclContext(class_interface_decl); |
7949 | getter->setInstanceMethod(isInstance); |
7950 | getter->setVariadic(isVariadic); |
7951 | getter->setPropertyAccessor(isPropertyAccessor); |
7952 | getter->setSynthesizedAccessorStub(isSynthesizedAccessorStub); |
7953 | getter->setImplicit(isImplicitlyDeclared); |
7954 | getter->setDefined(isDefined); |
7955 | getter->setDeclImplementation(impControl); |
7956 | getter->setRelatedResultType(HasRelatedResultType); |
7957 | SetMemberOwningModule(getter, class_interface_decl); |
7958 | |
7959 | if (getter) { |
7960 | if (metadata) |
7961 | ast->SetMetadata(getter, *metadata); |
7962 | |
7963 | getter->setMethodParams(clang_ast, llvm::ArrayRef<clang::ParmVarDecl *>(), |
7964 | llvm::ArrayRef<clang::SourceLocation>()); |
7965 | class_interface_decl->addDecl(getter); |
7966 | } |
7967 | } |
7968 | if (getter) { |
7969 | getter->setPropertyAccessor(true); |
7970 | property_decl->setGetterMethodDecl(getter); |
7971 | } |
7972 | |
7973 | clang::ObjCMethodDecl *setter = nullptr; |
7974 | setter = isInstance ? class_interface_decl->lookupInstanceMethod(setter_sel) |
7975 | : class_interface_decl->lookupClassMethod(setter_sel); |
7976 | if (!setter_sel.isNull() && !setter) { |
7977 | clang::QualType result_type = clang_ast.VoidTy; |
7978 | const bool isVariadic = false; |
7979 | const bool isPropertyAccessor = true; |
7980 | const bool isSynthesizedAccessorStub = false; |
7981 | const bool isImplicitlyDeclared = true; |
7982 | const bool isDefined = false; |
7983 | const clang::ObjCMethodDecl::ImplementationControl impControl = |
7984 | clang::ObjCMethodDecl::None; |
7985 | const bool HasRelatedResultType = false; |
7986 | |
7987 | setter = clang::ObjCMethodDecl::CreateDeserialized(clang_ast, 0); |
7988 | setter->setDeclName(setter_sel); |
7989 | setter->setReturnType(result_type); |
7990 | setter->setDeclContext(class_interface_decl); |
7991 | setter->setInstanceMethod(isInstance); |
7992 | setter->setVariadic(isVariadic); |
7993 | setter->setPropertyAccessor(isPropertyAccessor); |
7994 | setter->setSynthesizedAccessorStub(isSynthesizedAccessorStub); |
7995 | setter->setImplicit(isImplicitlyDeclared); |
7996 | setter->setDefined(isDefined); |
7997 | setter->setDeclImplementation(impControl); |
7998 | setter->setRelatedResultType(HasRelatedResultType); |
7999 | SetMemberOwningModule(setter, class_interface_decl); |
8000 | |
8001 | if (setter) { |
8002 | if (metadata) |
8003 | ast->SetMetadata(setter, *metadata); |
8004 | |
8005 | llvm::SmallVector<clang::ParmVarDecl *, 1> params; |
8006 | params.push_back(clang::ParmVarDecl::Create( |
8007 | clang_ast, setter, clang::SourceLocation(), clang::SourceLocation(), |
8008 | nullptr, // anonymous |
8009 | ClangUtil::GetQualType(property_clang_type_to_access), nullptr, |
8010 | clang::SC_Auto, nullptr)); |
8011 | |
8012 | setter->setMethodParams(clang_ast, |
8013 | llvm::ArrayRef<clang::ParmVarDecl *>(params), |
8014 | llvm::ArrayRef<clang::SourceLocation>()); |
8015 | |
8016 | class_interface_decl->addDecl(setter); |
8017 | } |
8018 | } |
8019 | if (setter) { |
8020 | setter->setPropertyAccessor(true); |
8021 | property_decl->setSetterMethodDecl(setter); |
8022 | } |
8023 | |
8024 | return true; |
8025 | } |
8026 | |
8027 | bool TypeSystemClang::IsObjCClassTypeAndHasIVars(const CompilerType &type, |
8028 | bool check_superclass) { |
8029 | clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); |
8030 | if (class_interface_decl) |
8031 | return ObjCDeclHasIVars(class_interface_decl, check_superclass); |
8032 | return false; |
8033 | } |
8034 | |
8035 | clang::ObjCMethodDecl *TypeSystemClang::AddMethodToObjCObjectType( |
8036 | const CompilerType &type, |
8037 | const char *name, // the full symbol name as seen in the symbol table |
8038 | // (lldb::opaque_compiler_type_t type, "-[NString |
8039 | // stringWithCString:]") |
8040 | const CompilerType &method_clang_type, lldb::AccessType access, |
8041 | bool is_artificial, bool is_variadic, bool is_objc_direct_call) { |
8042 | if (!type || !method_clang_type.IsValid()) |
8043 | return nullptr; |
8044 | |
8045 | clang::ObjCInterfaceDecl *class_interface_decl = GetAsObjCInterfaceDecl(type); |
8046 | |
8047 | if (class_interface_decl == nullptr) |
8048 | return nullptr; |
8049 | TypeSystemClang *lldb_ast = |
8050 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); |
8051 | if (lldb_ast == nullptr) |
8052 | return nullptr; |
8053 | clang::ASTContext &ast = lldb_ast->getASTContext(); |
8054 | |
8055 | const char *selector_start = ::strchr(name, ' '); |
8056 | if (selector_start == nullptr) |
8057 | return nullptr; |
8058 | |
8059 | selector_start++; |
8060 | llvm::SmallVector<clang::IdentifierInfo *, 12> selector_idents; |
8061 | |
8062 | size_t len = 0; |
8063 | const char *start; |
8064 | |
8065 | unsigned num_selectors_with_args = 0; |
8066 | for (start = selector_start; start && *start != '\0' && *start != ']'; |
8067 | start += len) { |
8068 | len = ::strcspn(start, ":]"); |
8069 | bool has_arg = (start[len] == ':'); |
8070 | if (has_arg) |
8071 | ++num_selectors_with_args; |
8072 | selector_idents.push_back(&ast.Idents.get(llvm::StringRef(start, len))); |
8073 | if (has_arg) |
8074 | len += 1; |
8075 | } |
8076 | |
8077 | if (selector_idents.size() == 0) |
8078 | return nullptr; |
8079 | |
8080 | clang::Selector method_selector = ast.Selectors.getSelector( |
8081 | num_selectors_with_args ? selector_idents.size() : 0, |
8082 | selector_idents.data()); |
8083 | |
8084 | clang::QualType method_qual_type(ClangUtil::GetQualType(method_clang_type)); |
8085 | |
8086 | // Populate the method decl with parameter decls |
8087 | const clang::Type *method_type(method_qual_type.getTypePtr()); |
8088 | |
8089 | if (method_type == nullptr) |
8090 | return nullptr; |
8091 | |
8092 | const clang::FunctionProtoType *method_function_prototype( |
8093 | llvm::dyn_cast<clang::FunctionProtoType>(method_type)); |
8094 | |
8095 | if (!method_function_prototype) |
8096 | return nullptr; |
8097 | |
8098 | const bool isInstance = (name[0] == '-'); |
8099 | const bool isVariadic = is_variadic; |
8100 | const bool isPropertyAccessor = false; |
8101 | const bool isSynthesizedAccessorStub = false; |
8102 | /// Force this to true because we don't have source locations. |
8103 | const bool isImplicitlyDeclared = true; |
8104 | const bool isDefined = false; |
8105 | const clang::ObjCMethodDecl::ImplementationControl impControl = |
8106 | clang::ObjCMethodDecl::None; |
8107 | const bool HasRelatedResultType = false; |
8108 | |
8109 | const unsigned num_args = method_function_prototype->getNumParams(); |
8110 | |
8111 | if (num_args != num_selectors_with_args) |
8112 | return nullptr; // some debug information is corrupt. We are not going to |
8113 | // deal with it. |
8114 | |
8115 | auto *objc_method_decl = clang::ObjCMethodDecl::CreateDeserialized(ast, 0); |
8116 | objc_method_decl->setDeclName(method_selector); |
8117 | objc_method_decl->setReturnType(method_function_prototype->getReturnType()); |
8118 | objc_method_decl->setDeclContext( |
8119 | lldb_ast->GetDeclContextForType(ClangUtil::GetQualType(type))); |
8120 | objc_method_decl->setInstanceMethod(isInstance); |
8121 | objc_method_decl->setVariadic(isVariadic); |
8122 | objc_method_decl->setPropertyAccessor(isPropertyAccessor); |
8123 | objc_method_decl->setSynthesizedAccessorStub(isSynthesizedAccessorStub); |
8124 | objc_method_decl->setImplicit(isImplicitlyDeclared); |
8125 | objc_method_decl->setDefined(isDefined); |
8126 | objc_method_decl->setDeclImplementation(impControl); |
8127 | objc_method_decl->setRelatedResultType(HasRelatedResultType); |
8128 | SetMemberOwningModule(objc_method_decl, class_interface_decl); |
8129 | |
8130 | if (objc_method_decl == nullptr) |
8131 | return nullptr; |
8132 | |
8133 | if (num_args > 0) { |
8134 | llvm::SmallVector<clang::ParmVarDecl *, 12> params; |
8135 | |
8136 | for (unsigned param_index = 0; param_index < num_args; ++param_index) { |
8137 | params.push_back(clang::ParmVarDecl::Create( |
8138 | ast, objc_method_decl, clang::SourceLocation(), |
8139 | clang::SourceLocation(), |
8140 | nullptr, // anonymous |
8141 | method_function_prototype->getParamType(param_index), nullptr, |
8142 | clang::SC_Auto, nullptr)); |
8143 | } |
8144 | |
8145 | objc_method_decl->setMethodParams( |
8146 | ast, llvm::ArrayRef<clang::ParmVarDecl *>(params), |
8147 | llvm::ArrayRef<clang::SourceLocation>()); |
8148 | } |
8149 | |
8150 | if (is_objc_direct_call) { |
8151 | // Add a the objc_direct attribute to the declaration we generate that |
8152 | // we generate a direct method call for this ObjCMethodDecl. |
8153 | objc_method_decl->addAttr( |
8154 | clang::ObjCDirectAttr::CreateImplicit(ast, SourceLocation())); |
8155 | // Usually Sema is creating implicit parameters (e.g., self) when it |
8156 | // parses the method. We don't have a parsing Sema when we build our own |
8157 | // AST here so we manually need to create these implicit parameters to |
8158 | // make the direct call code generation happy. |
8159 | objc_method_decl->createImplicitParams(ast, class_interface_decl); |
8160 | } |
8161 | |
8162 | class_interface_decl->addDecl(objc_method_decl); |
8163 | |
8164 | VerifyDecl(objc_method_decl); |
8165 | |
8166 | return objc_method_decl; |
8167 | } |
8168 | |
8169 | bool TypeSystemClang::SetHasExternalStorage(lldb::opaque_compiler_type_t type, |
8170 | bool has_extern) { |
8171 | if (!type) |
8172 | return false; |
8173 | |
8174 | clang::QualType qual_type(RemoveWrappingTypes(GetCanonicalQualType(type))); |
8175 | |
8176 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
8177 | switch (type_class) { |
8178 | case clang::Type::Record: { |
8179 | clang::CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl(); |
8180 | if (cxx_record_decl) { |
8181 | cxx_record_decl->setHasExternalLexicalStorage(has_extern); |
8182 | cxx_record_decl->setHasExternalVisibleStorage(has_extern); |
8183 | return true; |
8184 | } |
8185 | } break; |
8186 | |
8187 | case clang::Type::Enum: { |
8188 | clang::EnumDecl *enum_decl = |
8189 | llvm::cast<clang::EnumType>(qual_type)->getDecl(); |
8190 | if (enum_decl) { |
8191 | enum_decl->setHasExternalLexicalStorage(has_extern); |
8192 | enum_decl->setHasExternalVisibleStorage(has_extern); |
8193 | return true; |
8194 | } |
8195 | } break; |
8196 | |
8197 | case clang::Type::ObjCObject: |
8198 | case clang::Type::ObjCInterface: { |
8199 | const clang::ObjCObjectType *objc_class_type = |
8200 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
8201 | assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail ("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 8201, __extension__ __PRETTY_FUNCTION__)); |
8202 | if (objc_class_type) { |
8203 | clang::ObjCInterfaceDecl *class_interface_decl = |
8204 | objc_class_type->getInterface(); |
8205 | |
8206 | if (class_interface_decl) { |
8207 | class_interface_decl->setHasExternalLexicalStorage(has_extern); |
8208 | class_interface_decl->setHasExternalVisibleStorage(has_extern); |
8209 | return true; |
8210 | } |
8211 | } |
8212 | } break; |
8213 | |
8214 | default: |
8215 | break; |
8216 | } |
8217 | return false; |
8218 | } |
8219 | |
8220 | #pragma mark TagDecl |
8221 | |
8222 | bool TypeSystemClang::StartTagDeclarationDefinition(const CompilerType &type) { |
8223 | clang::QualType qual_type(ClangUtil::GetQualType(type)); |
8224 | if (!qual_type.isNull()) { |
8225 | const clang::TagType *tag_type = qual_type->getAs<clang::TagType>(); |
8226 | if (tag_type) { |
8227 | clang::TagDecl *tag_decl = tag_type->getDecl(); |
8228 | if (tag_decl) { |
8229 | tag_decl->startDefinition(); |
8230 | return true; |
8231 | } |
8232 | } |
8233 | |
8234 | const clang::ObjCObjectType *object_type = |
8235 | qual_type->getAs<clang::ObjCObjectType>(); |
8236 | if (object_type) { |
8237 | clang::ObjCInterfaceDecl *interface_decl = object_type->getInterface(); |
8238 | if (interface_decl) { |
8239 | interface_decl->startDefinition(); |
8240 | return true; |
8241 | } |
8242 | } |
8243 | } |
8244 | return false; |
8245 | } |
8246 | |
8247 | bool TypeSystemClang::CompleteTagDeclarationDefinition( |
8248 | const CompilerType &type) { |
8249 | clang::QualType qual_type(ClangUtil::GetQualType(type)); |
8250 | if (qual_type.isNull()) |
8251 | return false; |
8252 | |
8253 | TypeSystemClang *lldb_ast = |
8254 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); |
8255 | if (lldb_ast == nullptr) |
8256 | return false; |
8257 | |
8258 | // Make sure we use the same methodology as |
8259 | // TypeSystemClang::StartTagDeclarationDefinition() as to how we start/end |
8260 | // the definition. |
8261 | const clang::TagType *tag_type = qual_type->getAs<clang::TagType>(); |
8262 | if (tag_type) { |
8263 | clang::TagDecl *tag_decl = tag_type->getDecl(); |
8264 | |
8265 | if (auto *cxx_record_decl = llvm::dyn_cast<CXXRecordDecl>(tag_decl)) { |
8266 | // If we have a move constructor declared but no copy constructor we |
8267 | // need to explicitly mark it as deleted. Usually Sema would do this for |
8268 | // us in Sema::DeclareImplicitCopyConstructor but we don't have a Sema |
8269 | // when building an AST from debug information. |
8270 | // See also: |
8271 | // C++11 [class.copy]p7, p18: |
8272 | // If the class definition declares a move constructor or move assignment |
8273 | // operator, an implicitly declared copy constructor or copy assignment |
8274 | // operator is defined as deleted. |
8275 | if (cxx_record_decl->hasUserDeclaredMoveConstructor() || |
8276 | cxx_record_decl->hasUserDeclaredMoveAssignment()) { |
8277 | if (cxx_record_decl->needsImplicitCopyConstructor()) |
8278 | cxx_record_decl->setImplicitCopyConstructorIsDeleted(); |
8279 | if (cxx_record_decl->needsImplicitCopyAssignment()) |
8280 | cxx_record_decl->setImplicitCopyAssignmentIsDeleted(); |
8281 | } |
8282 | |
8283 | if (!cxx_record_decl->isCompleteDefinition()) |
8284 | cxx_record_decl->completeDefinition(); |
8285 | cxx_record_decl->setHasLoadedFieldsFromExternalStorage(true); |
8286 | cxx_record_decl->setHasExternalLexicalStorage(false); |
8287 | cxx_record_decl->setHasExternalVisibleStorage(false); |
8288 | lldb_ast->SetCXXRecordDeclAccess(cxx_record_decl, |
8289 | clang::AccessSpecifier::AS_none); |
8290 | return true; |
8291 | } |
8292 | } |
8293 | |
8294 | const clang::EnumType *enutype = qual_type->getAs<clang::EnumType>(); |
8295 | |
8296 | if (!enutype) |
8297 | return false; |
8298 | clang::EnumDecl *enum_decl = enutype->getDecl(); |
8299 | |
8300 | if (enum_decl->isCompleteDefinition()) |
8301 | return true; |
8302 | |
8303 | clang::ASTContext &ast = lldb_ast->getASTContext(); |
8304 | |
8305 | /// TODO This really needs to be fixed. |
8306 | |
8307 | QualType integer_type(enum_decl->getIntegerType()); |
8308 | if (!integer_type.isNull()) { |
8309 | unsigned NumPositiveBits = 1; |
8310 | unsigned NumNegativeBits = 0; |
8311 | |
8312 | clang::QualType promotion_qual_type; |
8313 | // If the enum integer type is less than an integer in bit width, |
8314 | // then we must promote it to an integer size. |
8315 | if (ast.getTypeSize(enum_decl->getIntegerType()) < |
8316 | ast.getTypeSize(ast.IntTy)) { |
8317 | if (enum_decl->getIntegerType()->isSignedIntegerType()) |
8318 | promotion_qual_type = ast.IntTy; |
8319 | else |
8320 | promotion_qual_type = ast.UnsignedIntTy; |
8321 | } else |
8322 | promotion_qual_type = enum_decl->getIntegerType(); |
8323 | |
8324 | enum_decl->completeDefinition(enum_decl->getIntegerType(), |
8325 | promotion_qual_type, NumPositiveBits, |
8326 | NumNegativeBits); |
8327 | } |
8328 | return true; |
8329 | } |
8330 | |
8331 | clang::EnumConstantDecl *TypeSystemClang::AddEnumerationValueToEnumerationType( |
8332 | const CompilerType &enum_type, const Declaration &decl, const char *name, |
8333 | const llvm::APSInt &value) { |
8334 | |
8335 | if (!enum_type || ConstString(name).IsEmpty()) |
8336 | return nullptr; |
8337 | |
8338 | lldbassert(enum_type.GetTypeSystem() == static_cast<TypeSystem *>(this))lldb_private::lldb_assert(static_cast<bool>(enum_type.GetTypeSystem () == static_cast<TypeSystem *>(this)), "enum_type.GetTypeSystem() == static_cast<TypeSystem *>(this)" , __FUNCTION__, "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 8338); |
8339 | |
8340 | lldb::opaque_compiler_type_t enum_opaque_compiler_type = |
8341 | enum_type.GetOpaqueQualType(); |
8342 | |
8343 | if (!enum_opaque_compiler_type) |
8344 | return nullptr; |
8345 | |
8346 | clang::QualType enum_qual_type( |
8347 | GetCanonicalQualType(enum_opaque_compiler_type)); |
8348 | |
8349 | const clang::Type *clang_type = enum_qual_type.getTypePtr(); |
8350 | |
8351 | if (!clang_type) |
8352 | return nullptr; |
8353 | |
8354 | const clang::EnumType *enutype = llvm::dyn_cast<clang::EnumType>(clang_type); |
8355 | |
8356 | if (!enutype) |
8357 | return nullptr; |
8358 | |
8359 | clang::EnumConstantDecl *enumerator_decl = |
8360 | clang::EnumConstantDecl::CreateDeserialized(getASTContext(), 0); |
8361 | enumerator_decl->setDeclContext(enutype->getDecl()); |
8362 | if (name && name[0]) |
8363 | enumerator_decl->setDeclName(&getASTContext().Idents.get(name)); |
8364 | enumerator_decl->setType(clang::QualType(enutype, 0)); |
8365 | enumerator_decl->setInitVal(value); |
8366 | SetMemberOwningModule(enumerator_decl, enutype->getDecl()); |
8367 | |
8368 | if (!enumerator_decl) |
8369 | return nullptr; |
8370 | |
8371 | enutype->getDecl()->addDecl(enumerator_decl); |
8372 | |
8373 | VerifyDecl(enumerator_decl); |
8374 | return enumerator_decl; |
8375 | } |
8376 | |
8377 | clang::EnumConstantDecl *TypeSystemClang::AddEnumerationValueToEnumerationType( |
8378 | const CompilerType &enum_type, const Declaration &decl, const char *name, |
8379 | int64_t enum_value, uint32_t enum_value_bit_size) { |
8380 | CompilerType underlying_type = GetEnumerationIntegerType(enum_type); |
8381 | bool is_signed = false; |
8382 | underlying_type.IsIntegerType(is_signed); |
8383 | |
8384 | llvm::APSInt value(enum_value_bit_size, is_signed); |
8385 | value = enum_value; |
8386 | |
8387 | return AddEnumerationValueToEnumerationType(enum_type, decl, name, value); |
8388 | } |
8389 | |
8390 | CompilerType TypeSystemClang::GetEnumerationIntegerType(CompilerType type) { |
8391 | clang::QualType qt(ClangUtil::GetQualType(type)); |
8392 | const clang::Type *clang_type = qt.getTypePtrOrNull(); |
8393 | const auto *enum_type = llvm::dyn_cast_or_null<clang::EnumType>(clang_type); |
8394 | if (!enum_type) |
8395 | return CompilerType(); |
8396 | |
8397 | return GetType(enum_type->getDecl()->getIntegerType()); |
8398 | } |
8399 | |
8400 | CompilerType |
8401 | TypeSystemClang::CreateMemberPointerType(const CompilerType &type, |
8402 | const CompilerType &pointee_type) { |
8403 | if (type && pointee_type.IsValid() && |
8404 | type.GetTypeSystem() == pointee_type.GetTypeSystem()) { |
8405 | TypeSystemClang *ast = |
8406 | llvm::dyn_cast<TypeSystemClang>(type.GetTypeSystem()); |
8407 | if (!ast) |
8408 | return CompilerType(); |
8409 | return ast->GetType(ast->getASTContext().getMemberPointerType( |
8410 | ClangUtil::GetQualType(pointee_type), |
8411 | ClangUtil::GetQualType(type).getTypePtr())); |
8412 | } |
8413 | return CompilerType(); |
8414 | } |
8415 | |
8416 | // Dumping types |
8417 | #define DEPTH_INCREMENT2 2 |
8418 | |
8419 | #ifndef NDEBUG |
8420 | LLVM_DUMP_METHOD__attribute__((noinline)) __attribute__((__used__)) void |
8421 | TypeSystemClang::dump(lldb::opaque_compiler_type_t type) const { |
8422 | if (!type) |
8423 | return; |
8424 | clang::QualType qual_type(GetQualType(type)); |
8425 | qual_type.dump(); |
8426 | } |
8427 | #endif |
8428 | |
8429 | void TypeSystemClang::Dump(llvm::raw_ostream &output) { |
8430 | GetTranslationUnitDecl()->dump(output); |
8431 | } |
8432 | |
8433 | void TypeSystemClang::DumpFromSymbolFile(Stream &s, |
8434 | llvm::StringRef symbol_name) { |
8435 | SymbolFile *symfile = GetSymbolFile(); |
8436 | |
8437 | if (!symfile) |
8438 | return; |
8439 | |
8440 | lldb_private::TypeList type_list; |
8441 | symfile->GetTypes(nullptr, eTypeClassAny, type_list); |
8442 | size_t ntypes = type_list.GetSize(); |
8443 | |
8444 | for (size_t i = 0; i < ntypes; ++i) { |
8445 | TypeSP type = type_list.GetTypeAtIndex(i); |
8446 | |
8447 | if (!symbol_name.empty()) |
8448 | if (symbol_name != type->GetName().GetStringRef()) |
8449 | continue; |
8450 | |
8451 | s << type->GetName().AsCString() << "\n"; |
8452 | |
8453 | CompilerType full_type = type->GetFullCompilerType(); |
8454 | if (clang::TagDecl *tag_decl = GetAsTagDecl(full_type)) { |
8455 | tag_decl->dump(s.AsRawOstream()); |
8456 | continue; |
8457 | } |
8458 | if (clang::TypedefNameDecl *typedef_decl = GetAsTypedefDecl(full_type)) { |
8459 | typedef_decl->dump(s.AsRawOstream()); |
8460 | continue; |
8461 | } |
8462 | if (auto *objc_obj = llvm::dyn_cast<clang::ObjCObjectType>( |
8463 | ClangUtil::GetQualType(full_type).getTypePtr())) { |
8464 | if (clang::ObjCInterfaceDecl *interface_decl = objc_obj->getInterface()) { |
8465 | interface_decl->dump(s.AsRawOstream()); |
8466 | continue; |
8467 | } |
8468 | } |
8469 | GetCanonicalQualType(full_type.GetOpaqueQualType()) |
8470 | .dump(s.AsRawOstream(), getASTContext()); |
8471 | } |
8472 | } |
8473 | |
8474 | void TypeSystemClang::DumpValue( |
8475 | lldb::opaque_compiler_type_t type, ExecutionContext *exe_ctx, Stream *s, |
8476 | lldb::Format format, const lldb_private::DataExtractor &data, |
8477 | lldb::offset_t data_byte_offset, size_t data_byte_size, |
8478 | uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset, bool show_types, |
8479 | bool show_summary, bool verbose, uint32_t depth) { |
8480 | if (!type) |
8481 | return; |
8482 | |
8483 | clang::QualType qual_type(GetQualType(type)); |
8484 | switch (qual_type->getTypeClass()) { |
8485 | case clang::Type::Record: |
8486 | if (GetCompleteType(type)) { |
8487 | const clang::RecordType *record_type = |
8488 | llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
8489 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
8490 | assert(record_decl)(static_cast <bool> (record_decl) ? void (0) : __assert_fail ("record_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 8490, __extension__ __PRETTY_FUNCTION__)); |
8491 | uint32_t field_bit_offset = 0; |
8492 | uint32_t field_byte_offset = 0; |
8493 | const clang::ASTRecordLayout &record_layout = |
8494 | getASTContext().getASTRecordLayout(record_decl); |
8495 | uint32_t child_idx = 0; |
8496 | |
8497 | const clang::CXXRecordDecl *cxx_record_decl = |
8498 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl); |
8499 | if (cxx_record_decl) { |
8500 | // We might have base classes to print out first |
8501 | clang::CXXRecordDecl::base_class_const_iterator base_class, |
8502 | base_class_end; |
8503 | for (base_class = cxx_record_decl->bases_begin(), |
8504 | base_class_end = cxx_record_decl->bases_end(); |
8505 | base_class != base_class_end; ++base_class) { |
8506 | const clang::CXXRecordDecl *base_class_decl = |
8507 | llvm::cast<clang::CXXRecordDecl>( |
8508 | base_class->getType()->getAs<clang::RecordType>()->getDecl()); |
8509 | |
8510 | // Skip empty base classes |
8511 | if (!verbose && !TypeSystemClang::RecordHasFields(base_class_decl)) |
8512 | continue; |
8513 | |
8514 | if (base_class->isVirtual()) |
8515 | field_bit_offset = |
8516 | record_layout.getVBaseClassOffset(base_class_decl) |
8517 | .getQuantity() * |
8518 | 8; |
8519 | else |
8520 | field_bit_offset = record_layout.getBaseClassOffset(base_class_decl) |
8521 | .getQuantity() * |
8522 | 8; |
8523 | field_byte_offset = field_bit_offset / 8; |
8524 | assert(field_bit_offset % 8 == 0)(static_cast <bool> (field_bit_offset % 8 == 0) ? void ( 0) : __assert_fail ("field_bit_offset % 8 == 0", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 8524, __extension__ __PRETTY_FUNCTION__)); |
8525 | if (child_idx == 0) |
8526 | s->PutChar('{'); |
8527 | else |
8528 | s->PutChar(','); |
8529 | |
8530 | clang::QualType base_class_qual_type = base_class->getType(); |
8531 | std::string base_class_type_name(base_class_qual_type.getAsString()); |
8532 | |
8533 | // Indent and print the base class type name |
8534 | s->Format("\n{0}{1}", llvm::fmt_repeat(" ", depth + DEPTH_INCREMENT2), |
8535 | base_class_type_name); |
8536 | |
8537 | clang::TypeInfo base_class_type_info = |
8538 | getASTContext().getTypeInfo(base_class_qual_type); |
8539 | |
8540 | // Dump the value of the member |
8541 | CompilerType base_clang_type = GetType(base_class_qual_type); |
8542 | base_clang_type.DumpValue( |
8543 | exe_ctx, |
8544 | s, // Stream to dump to |
8545 | base_clang_type |
8546 | .GetFormat(), // The format with which to display the member |
8547 | data, // Data buffer containing all bytes for this type |
8548 | data_byte_offset + field_byte_offset, // Offset into "data" where |
8549 | // to grab value from |
8550 | base_class_type_info.Width / 8, // Size of this type in bytes |
8551 | 0, // Bitfield bit size |
8552 | 0, // Bitfield bit offset |
8553 | show_types, // Boolean indicating if we should show the variable |
8554 | // types |
8555 | show_summary, // Boolean indicating if we should show a summary |
8556 | // for the current type |
8557 | verbose, // Verbose output? |
8558 | depth + DEPTH_INCREMENT2); // Scope depth for any types that have |
8559 | // children |
8560 | |
8561 | ++child_idx; |
8562 | } |
8563 | } |
8564 | uint32_t field_idx = 0; |
8565 | clang::RecordDecl::field_iterator field, field_end; |
8566 | for (field = record_decl->field_begin(), |
8567 | field_end = record_decl->field_end(); |
8568 | field != field_end; ++field, ++field_idx, ++child_idx) { |
8569 | // Print the starting squiggly bracket (if this is the first member) or |
8570 | // comma (for member 2 and beyond) for the struct/union/class member. |
8571 | if (child_idx == 0) |
8572 | s->PutChar('{'); |
8573 | else |
8574 | s->PutChar(','); |
8575 | |
8576 | // Indent |
8577 | s->Printf("\n%*s", depth + DEPTH_INCREMENT2, ""); |
8578 | |
8579 | clang::QualType field_type = field->getType(); |
8580 | // Print the member type if requested |
8581 | // Figure out the type byte size (field_type_info.first) and alignment |
8582 | // (field_type_info.second) from the AST context. |
8583 | clang::TypeInfo field_type_info = |
8584 | getASTContext().getTypeInfo(field_type); |
8585 | assert(field_idx < record_layout.getFieldCount())(static_cast <bool> (field_idx < record_layout.getFieldCount ()) ? void (0) : __assert_fail ("field_idx < record_layout.getFieldCount()" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 8585, __extension__ __PRETTY_FUNCTION__)); |
8586 | // Figure out the field offset within the current struct/union/class |
8587 | // type |
8588 | field_bit_offset = record_layout.getFieldOffset(field_idx); |
8589 | field_byte_offset = field_bit_offset / 8; |
8590 | uint32_t field_bitfield_bit_size = 0; |
8591 | uint32_t field_bitfield_bit_offset = 0; |
8592 | if (FieldIsBitfield(*field, field_bitfield_bit_size)) |
8593 | field_bitfield_bit_offset = field_bit_offset % 8; |
8594 | |
8595 | if (show_types) { |
8596 | std::string field_type_name(field_type.getAsString()); |
8597 | if (field_bitfield_bit_size > 0) |
8598 | s->Printf("(%s:%u) ", field_type_name.c_str(), |
8599 | field_bitfield_bit_size); |
8600 | else |
8601 | s->Printf("(%s) ", field_type_name.c_str()); |
8602 | } |
8603 | // Print the member name and equal sign |
8604 | s->Printf("%s = ", field->getNameAsString().c_str()); |
8605 | |
8606 | // Dump the value of the member |
8607 | CompilerType field_clang_type = GetType(field_type); |
8608 | field_clang_type.DumpValue( |
8609 | exe_ctx, |
8610 | s, // Stream to dump to |
8611 | field_clang_type |
8612 | .GetFormat(), // The format with which to display the member |
8613 | data, // Data buffer containing all bytes for this type |
8614 | data_byte_offset + field_byte_offset, // Offset into "data" where to |
8615 | // grab value from |
8616 | field_type_info.Width / 8, // Size of this type in bytes |
8617 | field_bitfield_bit_size, // Bitfield bit size |
8618 | field_bitfield_bit_offset, // Bitfield bit offset |
8619 | show_types, // Boolean indicating if we should show the variable |
8620 | // types |
8621 | show_summary, // Boolean indicating if we should show a summary for |
8622 | // the current type |
8623 | verbose, // Verbose output? |
8624 | depth + DEPTH_INCREMENT2); // Scope depth for any types that have |
8625 | // children |
8626 | } |
8627 | |
8628 | // Indent the trailing squiggly bracket |
8629 | if (child_idx > 0) |
8630 | s->Printf("\n%*s}", depth, ""); |
8631 | } |
8632 | return; |
8633 | |
8634 | case clang::Type::Enum: |
8635 | if (GetCompleteType(type)) { |
8636 | const clang::EnumType *enutype = |
8637 | llvm::cast<clang::EnumType>(qual_type.getTypePtr()); |
8638 | const clang::EnumDecl *enum_decl = enutype->getDecl(); |
8639 | assert(enum_decl)(static_cast <bool> (enum_decl) ? void (0) : __assert_fail ("enum_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 8639, __extension__ __PRETTY_FUNCTION__)); |
8640 | clang::EnumDecl::enumerator_iterator enum_pos, enum_end_pos; |
8641 | lldb::offset_t offset = data_byte_offset; |
8642 | const int64_t enum_value = data.GetMaxU64Bitfield( |
8643 | &offset, data_byte_size, bitfield_bit_size, bitfield_bit_offset); |
8644 | for (enum_pos = enum_decl->enumerator_begin(), |
8645 | enum_end_pos = enum_decl->enumerator_end(); |
8646 | enum_pos != enum_end_pos; ++enum_pos) { |
8647 | if (enum_pos->getInitVal() == enum_value) { |
8648 | s->Printf("%s", enum_pos->getNameAsString().c_str()); |
8649 | return; |
8650 | } |
8651 | } |
8652 | // If we have gotten here we didn't get find the enumerator in the enum |
8653 | // decl, so just print the integer. |
8654 | s->Printf("%" PRIi64"l" "i", enum_value); |
8655 | } |
8656 | return; |
8657 | |
8658 | case clang::Type::ConstantArray: { |
8659 | const clang::ConstantArrayType *array = |
8660 | llvm::cast<clang::ConstantArrayType>(qual_type.getTypePtr()); |
8661 | bool is_array_of_characters = false; |
8662 | clang::QualType element_qual_type = array->getElementType(); |
8663 | |
8664 | const clang::Type *canonical_type = |
8665 | element_qual_type->getCanonicalTypeInternal().getTypePtr(); |
8666 | if (canonical_type) |
8667 | is_array_of_characters = canonical_type->isCharType(); |
8668 | |
8669 | const uint64_t element_count = array->getSize().getLimitedValue(); |
8670 | |
8671 | clang::TypeInfo field_type_info = |
8672 | getASTContext().getTypeInfo(element_qual_type); |
8673 | |
8674 | uint32_t element_idx = 0; |
8675 | uint32_t element_offset = 0; |
8676 | uint64_t element_byte_size = field_type_info.Width / 8; |
8677 | uint32_t element_stride = element_byte_size; |
8678 | |
8679 | if (is_array_of_characters) { |
8680 | s->PutChar('"'); |
8681 | DumpDataExtractor(data, s, data_byte_offset, lldb::eFormatChar, |
8682 | element_byte_size, element_count, UINT32_MAX(4294967295U), |
8683 | LLDB_INVALID_ADDRESS(18446744073709551615UL), 0, 0); |
8684 | s->PutChar('"'); |
8685 | return; |
8686 | } else { |
8687 | CompilerType element_clang_type = GetType(element_qual_type); |
8688 | lldb::Format element_format = element_clang_type.GetFormat(); |
8689 | |
8690 | for (element_idx = 0; element_idx < element_count; ++element_idx) { |
8691 | // Print the starting squiggly bracket (if this is the first member) or |
8692 | // comman (for member 2 and beyong) for the struct/union/class member. |
8693 | if (element_idx == 0) |
8694 | s->PutChar('{'); |
8695 | else |
8696 | s->PutChar(','); |
8697 | |
8698 | // Indent and print the index |
8699 | s->Printf("\n%*s[%u] ", depth + DEPTH_INCREMENT2, "", element_idx); |
8700 | |
8701 | // Figure out the field offset within the current struct/union/class |
8702 | // type |
8703 | element_offset = element_idx * element_stride; |
8704 | |
8705 | // Dump the value of the member |
8706 | element_clang_type.DumpValue( |
8707 | exe_ctx, |
8708 | s, // Stream to dump to |
8709 | element_format, // The format with which to display the element |
8710 | data, // Data buffer containing all bytes for this type |
8711 | data_byte_offset + |
8712 | element_offset, // Offset into "data" where to grab value from |
8713 | element_byte_size, // Size of this type in bytes |
8714 | 0, // Bitfield bit size |
8715 | 0, // Bitfield bit offset |
8716 | show_types, // Boolean indicating if we should show the variable |
8717 | // types |
8718 | show_summary, // Boolean indicating if we should show a summary for |
8719 | // the current type |
8720 | verbose, // Verbose output? |
8721 | depth + DEPTH_INCREMENT2); // Scope depth for any types that have |
8722 | // children |
8723 | } |
8724 | |
8725 | // Indent the trailing squiggly bracket |
8726 | if (element_idx > 0) |
8727 | s->Printf("\n%*s}", depth, ""); |
8728 | } |
8729 | } |
8730 | return; |
8731 | |
8732 | case clang::Type::Typedef: { |
8733 | clang::QualType typedef_qual_type = |
8734 | llvm::cast<clang::TypedefType>(qual_type) |
8735 | ->getDecl() |
8736 | ->getUnderlyingType(); |
8737 | |
8738 | CompilerType typedef_clang_type = GetType(typedef_qual_type); |
8739 | lldb::Format typedef_format = typedef_clang_type.GetFormat(); |
8740 | clang::TypeInfo typedef_type_info = |
8741 | getASTContext().getTypeInfo(typedef_qual_type); |
8742 | uint64_t typedef_byte_size = typedef_type_info.Width / 8; |
8743 | |
8744 | return typedef_clang_type.DumpValue( |
8745 | exe_ctx, |
8746 | s, // Stream to dump to |
8747 | typedef_format, // The format with which to display the element |
8748 | data, // Data buffer containing all bytes for this type |
8749 | data_byte_offset, // Offset into "data" where to grab value from |
8750 | typedef_byte_size, // Size of this type in bytes |
8751 | bitfield_bit_size, // Bitfield bit size |
8752 | bitfield_bit_offset, // Bitfield bit offset |
8753 | show_types, // Boolean indicating if we should show the variable types |
8754 | show_summary, // Boolean indicating if we should show a summary for the |
8755 | // current type |
8756 | verbose, // Verbose output? |
8757 | depth); // Scope depth for any types that have children |
8758 | } break; |
8759 | |
8760 | case clang::Type::Auto: { |
8761 | clang::QualType elaborated_qual_type = |
8762 | llvm::cast<clang::AutoType>(qual_type)->getDeducedType(); |
8763 | CompilerType elaborated_clang_type = GetType(elaborated_qual_type); |
8764 | lldb::Format elaborated_format = elaborated_clang_type.GetFormat(); |
8765 | clang::TypeInfo elaborated_type_info = |
8766 | getASTContext().getTypeInfo(elaborated_qual_type); |
8767 | uint64_t elaborated_byte_size = elaborated_type_info.Width / 8; |
8768 | |
8769 | return elaborated_clang_type.DumpValue( |
8770 | exe_ctx, |
8771 | s, // Stream to dump to |
8772 | elaborated_format, // The format with which to display the element |
8773 | data, // Data buffer containing all bytes for this type |
8774 | data_byte_offset, // Offset into "data" where to grab value from |
8775 | elaborated_byte_size, // Size of this type in bytes |
8776 | bitfield_bit_size, // Bitfield bit size |
8777 | bitfield_bit_offset, // Bitfield bit offset |
8778 | show_types, // Boolean indicating if we should show the variable types |
8779 | show_summary, // Boolean indicating if we should show a summary for the |
8780 | // current type |
8781 | verbose, // Verbose output? |
8782 | depth); // Scope depth for any types that have children |
8783 | } break; |
8784 | |
8785 | case clang::Type::Elaborated: { |
8786 | clang::QualType elaborated_qual_type = |
8787 | llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(); |
8788 | CompilerType elaborated_clang_type = GetType(elaborated_qual_type); |
8789 | lldb::Format elaborated_format = elaborated_clang_type.GetFormat(); |
8790 | clang::TypeInfo elaborated_type_info = |
8791 | getASTContext().getTypeInfo(elaborated_qual_type); |
8792 | uint64_t elaborated_byte_size = elaborated_type_info.Width / 8; |
8793 | |
8794 | return elaborated_clang_type.DumpValue( |
8795 | exe_ctx, |
8796 | s, // Stream to dump to |
8797 | elaborated_format, // The format with which to display the element |
8798 | data, // Data buffer containing all bytes for this type |
8799 | data_byte_offset, // Offset into "data" where to grab value from |
8800 | elaborated_byte_size, // Size of this type in bytes |
8801 | bitfield_bit_size, // Bitfield bit size |
8802 | bitfield_bit_offset, // Bitfield bit offset |
8803 | show_types, // Boolean indicating if we should show the variable types |
8804 | show_summary, // Boolean indicating if we should show a summary for the |
8805 | // current type |
8806 | verbose, // Verbose output? |
8807 | depth); // Scope depth for any types that have children |
8808 | } break; |
8809 | |
8810 | case clang::Type::Paren: { |
8811 | clang::QualType desugar_qual_type = |
8812 | llvm::cast<clang::ParenType>(qual_type)->desugar(); |
8813 | CompilerType desugar_clang_type = GetType(desugar_qual_type); |
8814 | |
8815 | lldb::Format desugar_format = desugar_clang_type.GetFormat(); |
8816 | clang::TypeInfo desugar_type_info = |
8817 | getASTContext().getTypeInfo(desugar_qual_type); |
8818 | uint64_t desugar_byte_size = desugar_type_info.Width / 8; |
8819 | |
8820 | return desugar_clang_type.DumpValue( |
8821 | exe_ctx, |
8822 | s, // Stream to dump to |
8823 | desugar_format, // The format with which to display the element |
8824 | data, // Data buffer containing all bytes for this type |
8825 | data_byte_offset, // Offset into "data" where to grab value from |
8826 | desugar_byte_size, // Size of this type in bytes |
8827 | bitfield_bit_size, // Bitfield bit size |
8828 | bitfield_bit_offset, // Bitfield bit offset |
8829 | show_types, // Boolean indicating if we should show the variable types |
8830 | show_summary, // Boolean indicating if we should show a summary for the |
8831 | // current type |
8832 | verbose, // Verbose output? |
8833 | depth); // Scope depth for any types that have children |
8834 | } break; |
8835 | |
8836 | default: |
8837 | // We are down to a scalar type that we just need to display. |
8838 | DumpDataExtractor(data, s, data_byte_offset, format, data_byte_size, 1, |
8839 | UINT32_MAX(4294967295U), LLDB_INVALID_ADDRESS(18446744073709551615UL), bitfield_bit_size, |
8840 | bitfield_bit_offset); |
8841 | |
8842 | if (show_summary) |
8843 | DumpSummary(type, exe_ctx, s, data, data_byte_offset, data_byte_size); |
8844 | break; |
8845 | } |
8846 | } |
8847 | |
8848 | static bool DumpEnumValue(const clang::QualType &qual_type, Stream *s, |
8849 | const DataExtractor &data, lldb::offset_t byte_offset, |
8850 | size_t byte_size, uint32_t bitfield_bit_offset, |
8851 | uint32_t bitfield_bit_size) { |
8852 | const clang::EnumType *enutype = |
8853 | llvm::cast<clang::EnumType>(qual_type.getTypePtr()); |
8854 | const clang::EnumDecl *enum_decl = enutype->getDecl(); |
8855 | assert(enum_decl)(static_cast <bool> (enum_decl) ? void (0) : __assert_fail ("enum_decl", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 8855, __extension__ __PRETTY_FUNCTION__)); |
8856 | lldb::offset_t offset = byte_offset; |
8857 | const uint64_t enum_svalue = data.GetMaxS64Bitfield( |
8858 | &offset, byte_size, bitfield_bit_size, bitfield_bit_offset); |
8859 | bool can_be_bitfield = true; |
8860 | uint64_t covered_bits = 0; |
8861 | int num_enumerators = 0; |
8862 | |
8863 | // Try to find an exact match for the value. |
8864 | // At the same time, we're applying a heuristic to determine whether we want |
8865 | // to print this enum as a bitfield. We're likely dealing with a bitfield if |
8866 | // every enumerator is either a one bit value or a superset of the previous |
8867 | // enumerators. Also 0 doesn't make sense when the enumerators are used as |
8868 | // flags. |
8869 | for (auto *enumerator : enum_decl->enumerators()) { |
8870 | uint64_t val = enumerator->getInitVal().getSExtValue(); |
8871 | val = llvm::SignExtend64(val, 8*byte_size); |
8872 | if (llvm::countPopulation(val) != 1 && (val & ~covered_bits) != 0) |
8873 | can_be_bitfield = false; |
8874 | covered_bits |= val; |
8875 | ++num_enumerators; |
8876 | if (val == enum_svalue) { |
8877 | // Found an exact match, that's all we need to do. |
8878 | s->PutCString(enumerator->getNameAsString()); |
8879 | return true; |
8880 | } |
8881 | } |
8882 | |
8883 | // Unsigned values make more sense for flags. |
8884 | offset = byte_offset; |
8885 | const uint64_t enum_uvalue = data.GetMaxU64Bitfield( |
8886 | &offset, byte_size, bitfield_bit_size, bitfield_bit_offset); |
8887 | |
8888 | // No exact match, but we don't think this is a bitfield. Print the value as |
8889 | // decimal. |
8890 | if (!can_be_bitfield) { |
8891 | if (qual_type->isSignedIntegerOrEnumerationType()) |
8892 | s->Printf("%" PRIi64"l" "i", enum_svalue); |
8893 | else |
8894 | s->Printf("%" PRIu64"l" "u", enum_uvalue); |
8895 | return true; |
8896 | } |
8897 | |
8898 | uint64_t remaining_value = enum_uvalue; |
8899 | std::vector<std::pair<uint64_t, llvm::StringRef>> values; |
8900 | values.reserve(num_enumerators); |
8901 | for (auto *enumerator : enum_decl->enumerators()) |
8902 | if (auto val = enumerator->getInitVal().getZExtValue()) |
8903 | values.emplace_back(val, enumerator->getName()); |
8904 | |
8905 | // Sort in reverse order of the number of the population count, so that in |
8906 | // `enum {A, B, ALL = A|B }` we visit ALL first. Use a stable sort so that |
8907 | // A | C where A is declared before C is displayed in this order. |
8908 | std::stable_sort(values.begin(), values.end(), [](const auto &a, const auto &b) { |
8909 | return llvm::countPopulation(a.first) > llvm::countPopulation(b.first); |
8910 | }); |
8911 | |
8912 | for (const auto &val : values) { |
8913 | if ((remaining_value & val.first) != val.first) |
8914 | continue; |
8915 | remaining_value &= ~val.first; |
8916 | s->PutCString(val.second); |
8917 | if (remaining_value) |
8918 | s->PutCString(" | "); |
8919 | } |
8920 | |
8921 | // If there is a remainder that is not covered by the value, print it as hex. |
8922 | if (remaining_value) |
8923 | s->Printf("0x%" PRIx64"l" "x", remaining_value); |
8924 | |
8925 | return true; |
8926 | } |
8927 | |
8928 | bool TypeSystemClang::DumpTypeValue( |
8929 | lldb::opaque_compiler_type_t type, Stream *s, lldb::Format format, |
8930 | const lldb_private::DataExtractor &data, lldb::offset_t byte_offset, |
8931 | size_t byte_size, uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset, |
8932 | ExecutionContextScope *exe_scope) { |
8933 | if (!type) |
8934 | return false; |
8935 | if (IsAggregateType(type)) { |
8936 | return false; |
8937 | } else { |
8938 | clang::QualType qual_type(GetQualType(type)); |
8939 | |
8940 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
8941 | |
8942 | if (type_class == clang::Type::Elaborated) { |
8943 | qual_type = llvm::cast<clang::ElaboratedType>(qual_type)->getNamedType(); |
8944 | return DumpTypeValue(qual_type.getAsOpaquePtr(), s, format, data, byte_offset, byte_size, |
8945 | bitfield_bit_size, bitfield_bit_offset, exe_scope); |
8946 | } |
8947 | |
8948 | switch (type_class) { |
8949 | case clang::Type::Typedef: { |
8950 | clang::QualType typedef_qual_type = |
8951 | llvm::cast<clang::TypedefType>(qual_type) |
8952 | ->getDecl() |
8953 | ->getUnderlyingType(); |
8954 | CompilerType typedef_clang_type = GetType(typedef_qual_type); |
8955 | if (format == eFormatDefault) |
8956 | format = typedef_clang_type.GetFormat(); |
8957 | clang::TypeInfo typedef_type_info = |
8958 | getASTContext().getTypeInfo(typedef_qual_type); |
8959 | uint64_t typedef_byte_size = typedef_type_info.Width / 8; |
8960 | |
8961 | return typedef_clang_type.DumpTypeValue( |
8962 | s, |
8963 | format, // The format with which to display the element |
8964 | data, // Data buffer containing all bytes for this type |
8965 | byte_offset, // Offset into "data" where to grab value from |
8966 | typedef_byte_size, // Size of this type in bytes |
8967 | bitfield_bit_size, // Size in bits of a bitfield value, if zero don't |
8968 | // treat as a bitfield |
8969 | bitfield_bit_offset, // Offset in bits of a bitfield value if |
8970 | // bitfield_bit_size != 0 |
8971 | exe_scope); |
8972 | } break; |
8973 | |
8974 | case clang::Type::Enum: |
8975 | // If our format is enum or default, show the enumeration value as its |
8976 | // enumeration string value, else just display it as requested. |
8977 | if ((format == eFormatEnum || format == eFormatDefault) && |
8978 | GetCompleteType(type)) |
8979 | return DumpEnumValue(qual_type, s, data, byte_offset, byte_size, |
8980 | bitfield_bit_offset, bitfield_bit_size); |
8981 | // format was not enum, just fall through and dump the value as |
8982 | // requested.... |
8983 | LLVM_FALLTHROUGH[[gnu::fallthrough]]; |
8984 | |
8985 | default: |
8986 | // We are down to a scalar type that we just need to display. |
8987 | { |
8988 | uint32_t item_count = 1; |
8989 | // A few formats, we might need to modify our size and count for |
8990 | // depending |
8991 | // on how we are trying to display the value... |
8992 | switch (format) { |
8993 | default: |
8994 | case eFormatBoolean: |
8995 | case eFormatBinary: |
8996 | case eFormatComplex: |
8997 | case eFormatCString: // NULL terminated C strings |
8998 | case eFormatDecimal: |
8999 | case eFormatEnum: |
9000 | case eFormatHex: |
9001 | case eFormatHexUppercase: |
9002 | case eFormatFloat: |
9003 | case eFormatOctal: |
9004 | case eFormatOSType: |
9005 | case eFormatUnsigned: |
9006 | case eFormatPointer: |
9007 | case eFormatVectorOfChar: |
9008 | case eFormatVectorOfSInt8: |
9009 | case eFormatVectorOfUInt8: |
9010 | case eFormatVectorOfSInt16: |
9011 | case eFormatVectorOfUInt16: |
9012 | case eFormatVectorOfSInt32: |
9013 | case eFormatVectorOfUInt32: |
9014 | case eFormatVectorOfSInt64: |
9015 | case eFormatVectorOfUInt64: |
9016 | case eFormatVectorOfFloat32: |
9017 | case eFormatVectorOfFloat64: |
9018 | case eFormatVectorOfUInt128: |
9019 | break; |
9020 | |
9021 | case eFormatChar: |
9022 | case eFormatCharPrintable: |
9023 | case eFormatCharArray: |
9024 | case eFormatBytes: |
9025 | case eFormatUnicode8: |
9026 | case eFormatBytesWithASCII: |
9027 | item_count = byte_size; |
9028 | byte_size = 1; |
9029 | break; |
9030 | |
9031 | case eFormatUnicode16: |
9032 | item_count = byte_size / 2; |
9033 | byte_size = 2; |
9034 | break; |
9035 | |
9036 | case eFormatUnicode32: |
9037 | item_count = byte_size / 4; |
9038 | byte_size = 4; |
9039 | break; |
9040 | } |
9041 | return DumpDataExtractor(data, s, byte_offset, format, byte_size, |
9042 | item_count, UINT32_MAX(4294967295U), LLDB_INVALID_ADDRESS(18446744073709551615UL), |
9043 | bitfield_bit_size, bitfield_bit_offset, |
9044 | exe_scope); |
9045 | } |
9046 | break; |
9047 | } |
9048 | } |
9049 | return false; |
9050 | } |
9051 | |
9052 | void TypeSystemClang::DumpSummary(lldb::opaque_compiler_type_t type, |
9053 | ExecutionContext *exe_ctx, Stream *s, |
9054 | const lldb_private::DataExtractor &data, |
9055 | lldb::offset_t data_byte_offset, |
9056 | size_t data_byte_size) { |
9057 | uint32_t length = 0; |
9058 | if (IsCStringType(type, length)) { |
9059 | if (exe_ctx) { |
9060 | Process *process = exe_ctx->GetProcessPtr(); |
9061 | if (process) { |
9062 | lldb::offset_t offset = data_byte_offset; |
9063 | lldb::addr_t pointer_address = data.GetMaxU64(&offset, data_byte_size); |
9064 | std::vector<uint8_t> buf; |
9065 | if (length > 0) |
9066 | buf.resize(length); |
9067 | else |
9068 | buf.resize(256); |
9069 | |
9070 | DataExtractor cstr_data(&buf.front(), buf.size(), |
9071 | process->GetByteOrder(), 4); |
9072 | buf.back() = '\0'; |
9073 | size_t bytes_read; |
9074 | size_t total_cstr_len = 0; |
9075 | Status error; |
9076 | while ((bytes_read = process->ReadMemory(pointer_address, &buf.front(), |
Although the value stored to 'bytes_read' is used in the enclosing expression, the value is never actually read from 'bytes_read' | |
9077 | buf.size(), error)) > 0) { |
9078 | const size_t len = strlen((const char *)&buf.front()); |
9079 | if (len == 0) |
9080 | break; |
9081 | if (total_cstr_len == 0) |
9082 | s->PutCString(" \""); |
9083 | DumpDataExtractor(cstr_data, s, 0, lldb::eFormatChar, 1, len, |
9084 | UINT32_MAX(4294967295U), LLDB_INVALID_ADDRESS(18446744073709551615UL), 0, 0); |
9085 | total_cstr_len += len; |
9086 | if (len < buf.size()) |
9087 | break; |
9088 | pointer_address += total_cstr_len; |
9089 | } |
9090 | if (total_cstr_len > 0) |
9091 | s->PutChar('"'); |
9092 | } |
9093 | } |
9094 | } |
9095 | } |
9096 | |
9097 | void TypeSystemClang::DumpTypeDescription(lldb::opaque_compiler_type_t type, |
9098 | lldb::DescriptionLevel level) { |
9099 | StreamFile s(stdoutstdout, false); |
9100 | DumpTypeDescription(type, &s, level); |
9101 | |
9102 | CompilerType ct(this, type); |
9103 | const clang::Type *clang_type = ClangUtil::GetQualType(ct).getTypePtr(); |
9104 | ClangASTMetadata *metadata = GetMetadata(clang_type); |
9105 | if (metadata) { |
9106 | metadata->Dump(&s); |
9107 | } |
9108 | } |
9109 | |
9110 | void TypeSystemClang::DumpTypeDescription(lldb::opaque_compiler_type_t type, |
9111 | Stream *s, |
9112 | lldb::DescriptionLevel level) { |
9113 | if (type) { |
9114 | clang::QualType qual_type = |
9115 | RemoveWrappingTypes(GetQualType(type), {clang::Type::Typedef}); |
9116 | |
9117 | llvm::SmallVector<char, 1024> buf; |
9118 | llvm::raw_svector_ostream llvm_ostrm(buf); |
9119 | |
9120 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
9121 | switch (type_class) { |
9122 | case clang::Type::ObjCObject: |
9123 | case clang::Type::ObjCInterface: { |
9124 | GetCompleteType(type); |
9125 | |
9126 | auto *objc_class_type = |
9127 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type.getTypePtr()); |
9128 | assert(objc_class_type)(static_cast <bool> (objc_class_type) ? void (0) : __assert_fail ("objc_class_type", "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , 9128, __extension__ __PRETTY_FUNCTION__)); |
9129 | if (!objc_class_type) |
9130 | break; |
9131 | clang::ObjCInterfaceDecl *class_interface_decl = |
9132 | objc_class_type->getInterface(); |
9133 | if (!class_interface_decl) |
9134 | break; |
9135 | if (level == eDescriptionLevelVerbose) |
9136 | class_interface_decl->dump(llvm_ostrm); |
9137 | else |
9138 | class_interface_decl->print(llvm_ostrm, |
9139 | getASTContext().getPrintingPolicy(), |
9140 | s->GetIndentLevel()); |
9141 | } break; |
9142 | |
9143 | case clang::Type::Typedef: { |
9144 | auto *typedef_type = qual_type->getAs<clang::TypedefType>(); |
9145 | if (!typedef_type) |
9146 | break; |
9147 | const clang::TypedefNameDecl *typedef_decl = typedef_type->getDecl(); |
9148 | if (level == eDescriptionLevelVerbose) |
9149 | typedef_decl->dump(llvm_ostrm); |
9150 | else { |
9151 | std::string clang_typedef_name(GetTypeNameForDecl(typedef_decl)); |
9152 | if (!clang_typedef_name.empty()) { |
9153 | s->PutCString("typedef "); |
9154 | s->PutCString(clang_typedef_name); |
9155 | } |
9156 | } |
9157 | } break; |
9158 | |
9159 | case clang::Type::Record: { |
9160 | GetCompleteType(type); |
9161 | |
9162 | auto *record_type = llvm::cast<clang::RecordType>(qual_type.getTypePtr()); |
9163 | const clang::RecordDecl *record_decl = record_type->getDecl(); |
9164 | if (level == eDescriptionLevelVerbose) |
9165 | record_decl->dump(llvm_ostrm); |
9166 | else { |
9167 | if (auto *cxx_record_decl = |
9168 | llvm::dyn_cast<clang::CXXRecordDecl>(record_decl)) |
9169 | cxx_record_decl->print(llvm_ostrm, |
9170 | getASTContext().getPrintingPolicy(), |
9171 | s->GetIndentLevel()); |
9172 | else |
9173 | record_decl->print(llvm_ostrm, getASTContext().getPrintingPolicy(), |
9174 | s->GetIndentLevel()); |
9175 | } |
9176 | } break; |
9177 | |
9178 | default: { |
9179 | if (auto *tag_type = |
9180 | llvm::dyn_cast<clang::TagType>(qual_type.getTypePtr())) { |
9181 | if (clang::TagDecl *tag_decl = tag_type->getDecl()) { |
9182 | if (level == eDescriptionLevelVerbose) |
9183 | tag_decl->dump(llvm_ostrm); |
9184 | else |
9185 | tag_decl->print(llvm_ostrm, 0); |
9186 | } |
9187 | } else { |
9188 | if (level == eDescriptionLevelVerbose) |
9189 | qual_type->dump(llvm_ostrm, getASTContext()); |
9190 | else { |
9191 | std::string clang_type_name(qual_type.getAsString()); |
9192 | if (!clang_type_name.empty()) |
9193 | s->PutCString(clang_type_name); |
9194 | } |
9195 | } |
9196 | } |
9197 | } |
9198 | |
9199 | if (buf.size() > 0) { |
9200 | s->Write(buf.data(), buf.size()); |
9201 | } |
9202 | } |
9203 | } |
9204 | |
9205 | void TypeSystemClang::DumpTypeName(const CompilerType &type) { |
9206 | if (ClangUtil::IsClangType(type)) { |
9207 | clang::QualType qual_type( |
9208 | ClangUtil::GetCanonicalQualType(ClangUtil::RemoveFastQualifiers(type))); |
9209 | |
9210 | const clang::Type::TypeClass type_class = qual_type->getTypeClass(); |
9211 | switch (type_class) { |
9212 | case clang::Type::Record: { |
9213 | const clang::CXXRecordDecl *cxx_record_decl = |
9214 | qual_type->getAsCXXRecordDecl(); |
9215 | if (cxx_record_decl) |
9216 | printf("class %s", cxx_record_decl->getName().str().c_str()); |
9217 | } break; |
9218 | |
9219 | case clang::Type::Enum: { |
9220 | clang::EnumDecl *enum_decl = |
9221 | llvm::cast<clang::EnumType>(qual_type)->getDecl(); |
9222 | if (enum_decl) { |
9223 | printf("enum %s", enum_decl->getName().str().c_str()); |
9224 | } |
9225 | } break; |
9226 | |
9227 | case clang::Type::ObjCObject: |
9228 | case clang::Type::ObjCInterface: { |
9229 | const clang::ObjCObjectType *objc_class_type = |
9230 | llvm::dyn_cast<clang::ObjCObjectType>(qual_type); |
9231 | if (objc_class_type) { |
9232 | clang::ObjCInterfaceDecl *class_interface_decl = |
9233 | objc_class_type->getInterface(); |
9234 | // We currently can't complete objective C types through the newly |
9235 | // added ASTContext because it only supports TagDecl objects right |
9236 | // now... |
9237 | if (class_interface_decl) |
9238 | printf("@class %s", class_interface_decl->getName().str().c_str()); |
9239 | } |
9240 | } break; |
9241 | |
9242 | case clang::Type::Typedef: |
9243 | printf("typedef %s", llvm::cast<clang::TypedefType>(qual_type) |
9244 | ->getDecl() |
9245 | ->getName() |
9246 | .str() |
9247 | .c_str()); |
9248 | break; |
9249 | |
9250 | case clang::Type::Auto: |
9251 | printf("auto "); |
9252 | return DumpTypeName(CompilerType(type.GetTypeSystem(), |
9253 | llvm::cast<clang::AutoType>(qual_type) |
9254 | ->getDeducedType() |
9255 | .getAsOpaquePtr())); |
9256 | |
9257 | case clang::Type::Elaborated: |
9258 | printf("elaborated "); |
9259 | return DumpTypeName(CompilerType( |
9260 | type.GetTypeSystem(), llvm::cast<clang::ElaboratedType>(qual_type) |
9261 | ->getNamedType() |
9262 | .getAsOpaquePtr())); |
9263 | |
9264 | case clang::Type::Paren: |
9265 | printf("paren "); |
9266 | return DumpTypeName(CompilerType( |
9267 | type.GetTypeSystem(), |
9268 | llvm::cast<clang::ParenType>(qual_type)->desugar().getAsOpaquePtr())); |
9269 | |
9270 | default: |
9271 | printf("TypeSystemClang::DumpTypeName() type_class = %u", type_class); |
9272 | break; |
9273 | } |
9274 | } |
9275 | } |
9276 | |
9277 | clang::ClassTemplateDecl *TypeSystemClang::ParseClassTemplateDecl( |
9278 | clang::DeclContext *decl_ctx, OptionalClangModuleID owning_module, |
9279 | lldb::AccessType access_type, const char *parent_name, int tag_decl_kind, |
9280 | const TypeSystemClang::TemplateParameterInfos &template_param_infos) { |
9281 | if (template_param_infos.IsValid()) { |
9282 | std::string template_basename(parent_name); |
9283 | template_basename.erase(template_basename.find('<')); |
9284 | |
9285 | return CreateClassTemplateDecl(decl_ctx, owning_module, access_type, |
9286 | template_basename.c_str(), tag_decl_kind, |
9287 | template_param_infos); |
9288 | } |
9289 | return nullptr; |
9290 | } |
9291 | |
9292 | void TypeSystemClang::CompleteTagDecl(clang::TagDecl *decl) { |
9293 | SymbolFile *sym_file = GetSymbolFile(); |
9294 | if (sym_file) { |
9295 | CompilerType clang_type = GetTypeForDecl(decl); |
9296 | if (clang_type) |
9297 | sym_file->CompleteType(clang_type); |
9298 | } |
9299 | } |
9300 | |
9301 | void TypeSystemClang::CompleteObjCInterfaceDecl( |
9302 | clang::ObjCInterfaceDecl *decl) { |
9303 | SymbolFile *sym_file = GetSymbolFile(); |
9304 | if (sym_file) { |
9305 | CompilerType clang_type = GetTypeForDecl(decl); |
9306 | if (clang_type) |
9307 | sym_file->CompleteType(clang_type); |
9308 | } |
9309 | } |
9310 | |
9311 | DWARFASTParser *TypeSystemClang::GetDWARFParser() { |
9312 | if (!m_dwarf_ast_parser_up) |
9313 | m_dwarf_ast_parser_up = std::make_unique<DWARFASTParserClang>(*this); |
9314 | return m_dwarf_ast_parser_up.get(); |
9315 | } |
9316 | |
9317 | PDBASTParser *TypeSystemClang::GetPDBParser() { |
9318 | if (!m_pdb_ast_parser_up) |
9319 | m_pdb_ast_parser_up = std::make_unique<PDBASTParser>(*this); |
9320 | return m_pdb_ast_parser_up.get(); |
9321 | } |
9322 | |
9323 | bool TypeSystemClang::LayoutRecordType( |
9324 | const clang::RecordDecl *record_decl, uint64_t &bit_size, |
9325 | uint64_t &alignment, |
9326 | llvm::DenseMap<const clang::FieldDecl *, uint64_t> &field_offsets, |
9327 | llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> |
9328 | &base_offsets, |
9329 | llvm::DenseMap<const clang::CXXRecordDecl *, clang::CharUnits> |
9330 | &vbase_offsets) { |
9331 | lldb_private::ClangASTImporter *importer = nullptr; |
9332 | if (m_dwarf_ast_parser_up) |
9333 | importer = &m_dwarf_ast_parser_up->GetClangASTImporter(); |
9334 | if (!importer && m_pdb_ast_parser_up) |
9335 | importer = &m_pdb_ast_parser_up->GetClangASTImporter(); |
9336 | if (!importer) |
9337 | return false; |
9338 | |
9339 | return importer->LayoutRecordType(record_decl, bit_size, alignment, |
9340 | field_offsets, base_offsets, vbase_offsets); |
9341 | } |
9342 | |
9343 | // CompilerDecl override functions |
9344 | |
9345 | ConstString TypeSystemClang::DeclGetName(void *opaque_decl) { |
9346 | if (opaque_decl) { |
9347 | clang::NamedDecl *nd = |
9348 | llvm::dyn_cast<NamedDecl>((clang::Decl *)opaque_decl); |
9349 | if (nd != nullptr) |
9350 | return ConstString(nd->getDeclName().getAsString()); |
9351 | } |
9352 | return ConstString(); |
9353 | } |
9354 | |
9355 | ConstString TypeSystemClang::DeclGetMangledName(void *opaque_decl) { |
9356 | if (opaque_decl) { |
9357 | clang::NamedDecl *nd = |
9358 | llvm::dyn_cast<clang::NamedDecl>((clang::Decl *)opaque_decl); |
9359 | if (nd != nullptr && !llvm::isa<clang::ObjCMethodDecl>(nd)) { |
9360 | clang::MangleContext *mc = getMangleContext(); |
9361 | if (mc && mc->shouldMangleCXXName(nd)) { |
9362 | llvm::SmallVector<char, 1024> buf; |
9363 | llvm::raw_svector_ostream llvm_ostrm(buf); |
9364 | if (llvm::isa<clang::CXXConstructorDecl>(nd)) { |
9365 | mc->mangleName( |
9366 | clang::GlobalDecl(llvm::dyn_cast<clang::CXXConstructorDecl>(nd), |
9367 | Ctor_Complete), |
9368 | llvm_ostrm); |
9369 | } else if (llvm::isa<clang::CXXDestructorDecl>(nd)) { |
9370 | mc->mangleName( |
9371 | clang::GlobalDecl(llvm::dyn_cast<clang::CXXDestructorDecl>(nd), |
9372 | Dtor_Complete), |
9373 | llvm_ostrm); |
9374 | } else { |
9375 | mc->mangleName(nd, llvm_ostrm); |
9376 | } |
9377 | if (buf.size() > 0) |
9378 | return ConstString(buf.data(), buf.size()); |
9379 | } |
9380 | } |
9381 | } |
9382 | return ConstString(); |
9383 | } |
9384 | |
9385 | CompilerDeclContext TypeSystemClang::DeclGetDeclContext(void *opaque_decl) { |
9386 | if (opaque_decl) |
9387 | return CreateDeclContext(((clang::Decl *)opaque_decl)->getDeclContext()); |
9388 | return CompilerDeclContext(); |
9389 | } |
9390 | |
9391 | CompilerType TypeSystemClang::DeclGetFunctionReturnType(void *opaque_decl) { |
9392 | if (clang::FunctionDecl *func_decl = |
9393 | llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) |
9394 | return GetType(func_decl->getReturnType()); |
9395 | if (clang::ObjCMethodDecl *objc_method = |
9396 | llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl)) |
9397 | return GetType(objc_method->getReturnType()); |
9398 | else |
9399 | return CompilerType(); |
9400 | } |
9401 | |
9402 | size_t TypeSystemClang::DeclGetFunctionNumArguments(void *opaque_decl) { |
9403 | if (clang::FunctionDecl *func_decl = |
9404 | llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) |
9405 | return func_decl->param_size(); |
9406 | if (clang::ObjCMethodDecl *objc_method = |
9407 | llvm::dyn_cast<clang::ObjCMethodDecl>((clang::Decl *)opaque_decl)) |
9408 | return objc_method->param_size(); |
9409 | else |
9410 | return 0; |
9411 | } |
9412 | |
9413 | CompilerType TypeSystemClang::DeclGetFunctionArgumentType(void *opaque_decl, |
9414 | size_t idx) { |
9415 | if (clang::FunctionDecl *func_decl = |
9416 | llvm::dyn_cast<clang::FunctionDecl>((clang::Decl *)opaque_decl)) { |
9417 | if (idx < func_decl->param_size()) { |
9418 | ParmVarDecl *var_decl = func_decl->getParamDecl(idx); |
9419 | if (var_decl) |
9420 | return GetType(var_decl->getOriginalType()); |
9421 | } |
9422 | } else if (clang::ObjCMethodDecl *objc_method = |
9423 | llvm::dyn_cast<clang::ObjCMethodDecl>( |
9424 | (clang::Decl *)opaque_decl)) { |
9425 | if (idx < objc_method->param_size()) |
9426 | return GetType(objc_method->parameters()[idx]->getOriginalType()); |
9427 | } |
9428 | return CompilerType(); |
9429 | } |
9430 | |
9431 | // CompilerDeclContext functions |
9432 | |
9433 | std::vector<CompilerDecl> TypeSystemClang::DeclContextFindDeclByName( |
9434 | void *opaque_decl_ctx, ConstString name, const bool ignore_using_decls) { |
9435 | std::vector<CompilerDecl> found_decls; |
9436 | SymbolFile *symbol_file = GetSymbolFile(); |
9437 | if (opaque_decl_ctx && symbol_file) { |
9438 | DeclContext *root_decl_ctx = (DeclContext *)opaque_decl_ctx; |
9439 | std::set<DeclContext *> searched; |
9440 | std::multimap<DeclContext *, DeclContext *> search_queue; |
9441 | |
9442 | for (clang::DeclContext *decl_context = root_decl_ctx; |
9443 | decl_context != nullptr && found_decls.empty(); |
9444 | decl_context = decl_context->getParent()) { |
9445 | search_queue.insert(std::make_pair(decl_context, decl_context)); |
9446 | |
9447 | for (auto it = search_queue.find(decl_context); it != search_queue.end(); |
9448 | it++) { |
9449 | if (!searched.insert(it->second).second) |
9450 | continue; |
9451 | symbol_file->ParseDeclsForContext( |
9452 | CreateDeclContext(it->second)); |
9453 | |
9454 | for (clang::Decl *child : it->second->decls()) { |
9455 | if (clang::UsingDirectiveDecl *ud = |
9456 | llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) { |
9457 | if (ignore_using_decls) |
9458 | continue; |
9459 | clang::DeclContext *from = ud->getCommonAncestor(); |
9460 | if (searched.find(ud->getNominatedNamespace()) == searched.end()) |
9461 | search_queue.insert( |
9462 | std::make_pair(from, ud->getNominatedNamespace())); |
9463 | } else if (clang::UsingDecl *ud = |
9464 | llvm::dyn_cast<clang::UsingDecl>(child)) { |
9465 | if (ignore_using_decls) |
9466 | continue; |
9467 | for (clang::UsingShadowDecl *usd : ud->shadows()) { |
9468 | clang::Decl *target = usd->getTargetDecl(); |
9469 | if (clang::NamedDecl *nd = |
9470 | llvm::dyn_cast<clang::NamedDecl>(target)) { |
9471 | IdentifierInfo *ii = nd->getIdentifier(); |
9472 | if (ii != nullptr && |
9473 | ii->getName().equals(name.AsCString(nullptr))) |
9474 | found_decls.push_back(GetCompilerDecl(nd)); |
9475 | } |
9476 | } |
9477 | } else if (clang::NamedDecl *nd = |
9478 | llvm::dyn_cast<clang::NamedDecl>(child)) { |
9479 | IdentifierInfo *ii = nd->getIdentifier(); |
9480 | if (ii != nullptr && ii->getName().equals(name.AsCString(nullptr))) |
9481 | found_decls.push_back(GetCompilerDecl(nd)); |
9482 | } |
9483 | } |
9484 | } |
9485 | } |
9486 | } |
9487 | return found_decls; |
9488 | } |
9489 | |
9490 | // Look for child_decl_ctx's lookup scope in frame_decl_ctx and its parents, |
9491 | // and return the number of levels it took to find it, or |
9492 | // LLDB_INVALID_DECL_LEVEL if not found. If the decl was imported via a using |
9493 | // declaration, its name and/or type, if set, will be used to check that the |
9494 | // decl found in the scope is a match. |
9495 | // |
9496 | // The optional name is required by languages (like C++) to handle using |
9497 | // declarations like: |
9498 | // |
9499 | // void poo(); |
9500 | // namespace ns { |
9501 | // void foo(); |
9502 | // void goo(); |
9503 | // } |
9504 | // void bar() { |
9505 | // using ns::foo; |
9506 | // // CountDeclLevels returns 0 for 'foo', 1 for 'poo', and |
9507 | // // LLDB_INVALID_DECL_LEVEL for 'goo'. |
9508 | // } |
9509 | // |
9510 | // The optional type is useful in the case that there's a specific overload |
9511 | // that we're looking for that might otherwise be shadowed, like: |
9512 | // |
9513 | // void foo(int); |
9514 | // namespace ns { |
9515 | // void foo(); |
9516 | // } |
9517 | // void bar() { |
9518 | // using ns::foo; |
9519 | // // CountDeclLevels returns 0 for { 'foo', void() }, |
9520 | // // 1 for { 'foo', void(int) }, and |
9521 | // // LLDB_INVALID_DECL_LEVEL for { 'foo', void(int, int) }. |
9522 | // } |
9523 | // |
9524 | // NOTE: Because file statics are at the TranslationUnit along with globals, a |
9525 | // function at file scope will return the same level as a function at global |
9526 | // scope. Ideally we'd like to treat the file scope as an additional scope just |
9527 | // below the global scope. More work needs to be done to recognise that, if |
9528 | // the decl we're trying to look up is static, we should compare its source |
9529 | // file with that of the current scope and return a lower number for it. |
9530 | uint32_t TypeSystemClang::CountDeclLevels(clang::DeclContext *frame_decl_ctx, |
9531 | clang::DeclContext *child_decl_ctx, |
9532 | ConstString *child_name, |
9533 | CompilerType *child_type) { |
9534 | SymbolFile *symbol_file = GetSymbolFile(); |
9535 | if (frame_decl_ctx && symbol_file) { |
9536 | std::set<DeclContext *> searched; |
9537 | std::multimap<DeclContext *, DeclContext *> search_queue; |
9538 | |
9539 | // Get the lookup scope for the decl we're trying to find. |
9540 | clang::DeclContext *parent_decl_ctx = child_decl_ctx->getParent(); |
9541 | |
9542 | // Look for it in our scope's decl context and its parents. |
9543 | uint32_t level = 0; |
9544 | for (clang::DeclContext *decl_ctx = frame_decl_ctx; decl_ctx != nullptr; |
9545 | decl_ctx = decl_ctx->getParent()) { |
9546 | if (!decl_ctx->isLookupContext()) |
9547 | continue; |
9548 | if (decl_ctx == parent_decl_ctx) |
9549 | // Found it! |
9550 | return level; |
9551 | search_queue.insert(std::make_pair(decl_ctx, decl_ctx)); |
9552 | for (auto it = search_queue.find(decl_ctx); it != search_queue.end(); |
9553 | it++) { |
9554 | if (searched.find(it->second) != searched.end()) |
9555 | continue; |
9556 | |
9557 | // Currently DWARF has one shared translation unit for all Decls at top |
9558 | // level, so this would erroneously find using statements anywhere. So |
9559 | // don't look at the top-level translation unit. |
9560 | // TODO fix this and add a testcase that depends on it. |
9561 | |
9562 | if (llvm::isa<clang::TranslationUnitDecl>(it->second)) |
9563 | continue; |
9564 | |
9565 | searched.insert(it->second); |
9566 | symbol_file->ParseDeclsForContext( |
9567 | CreateDeclContext(it->second)); |
9568 | |
9569 | for (clang::Decl *child : it->second->decls()) { |
9570 | if (clang::UsingDirectiveDecl *ud = |
9571 | llvm::dyn_cast<clang::UsingDirectiveDecl>(child)) { |
9572 | clang::DeclContext *ns = ud->getNominatedNamespace(); |
9573 | if (ns == parent_decl_ctx) |
9574 | // Found it! |
9575 | return level; |
9576 | clang::DeclContext *from = ud->getCommonAncestor(); |
9577 | if (searched.find(ns) == searched.end()) |
9578 | search_queue.insert(std::make_pair(from, ns)); |
9579 | } else if (child_name) { |
9580 | if (clang::UsingDecl *ud = |
9581 | llvm::dyn_cast<clang::UsingDecl>(child)) { |
9582 | for (clang::UsingShadowDecl *usd : ud->shadows()) { |
9583 | clang::Decl *target = usd->getTargetDecl(); |
9584 | clang::NamedDecl *nd = llvm::dyn_cast<clang::NamedDecl>(target); |
9585 | if (!nd) |
9586 | continue; |
9587 | // Check names. |
9588 | IdentifierInfo *ii = nd->getIdentifier(); |
9589 | if (ii == nullptr || |
9590 | !ii->getName().equals(child_name->AsCString(nullptr))) |
9591 | continue; |
9592 | // Check types, if one was provided. |
9593 | if (child_type) { |
9594 | CompilerType clang_type = GetTypeForDecl(nd); |
9595 | if (!AreTypesSame(clang_type, *child_type, |
9596 | /*ignore_qualifiers=*/true)) |
9597 | continue; |
9598 | } |
9599 | // Found it! |
9600 | return level; |
9601 | } |
9602 | } |
9603 | } |
9604 | } |
9605 | } |
9606 | ++level; |
9607 | } |
9608 | } |
9609 | return LLDB_INVALID_DECL_LEVEL(4294967295U); |
9610 | } |
9611 | |
9612 | ConstString TypeSystemClang::DeclContextGetName(void *opaque_decl_ctx) { |
9613 | if (opaque_decl_ctx) { |
9614 | clang::NamedDecl *named_decl = |
9615 | llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx); |
9616 | if (named_decl) |
9617 | return ConstString(named_decl->getName()); |
9618 | } |
9619 | return ConstString(); |
9620 | } |
9621 | |
9622 | ConstString |
9623 | TypeSystemClang::DeclContextGetScopeQualifiedName(void *opaque_decl_ctx) { |
9624 | if (opaque_decl_ctx) { |
9625 | clang::NamedDecl *named_decl = |
9626 | llvm::dyn_cast<clang::NamedDecl>((clang::DeclContext *)opaque_decl_ctx); |
9627 | if (named_decl) |
9628 | return ConstString(GetTypeNameForDecl(named_decl)); |
9629 | } |
9630 | return ConstString(); |
9631 | } |
9632 | |
9633 | bool TypeSystemClang::DeclContextIsClassMethod( |
9634 | void *opaque_decl_ctx, lldb::LanguageType *language_ptr, |
9635 | bool *is_instance_method_ptr, ConstString *language_object_name_ptr) { |
9636 | if (opaque_decl_ctx) { |
9637 | clang::DeclContext *decl_ctx = (clang::DeclContext *)opaque_decl_ctx; |
9638 | if (ObjCMethodDecl *objc_method = |
9639 | llvm::dyn_cast<clang::ObjCMethodDecl>(decl_ctx)) { |
9640 | if (is_instance_method_ptr) |
9641 | *is_instance_method_ptr = objc_method->isInstanceMethod(); |
9642 | if (language_ptr) |
9643 | *language_ptr = eLanguageTypeObjC; |
9644 | if (language_object_name_ptr) |
9645 | language_object_name_ptr->SetCString("self"); |
9646 | return true; |
9647 | } else if (CXXMethodDecl *cxx_method = |
9648 | llvm::dyn_cast<clang::CXXMethodDecl>(decl_ctx)) { |
9649 | if (is_instance_method_ptr) |
9650 | *is_instance_method_ptr = cxx_method->isInstance(); |
9651 | if (language_ptr) |
9652 | *language_ptr = eLanguageTypeC_plus_plus; |
9653 | if (language_object_name_ptr) |
9654 | language_object_name_ptr->SetCString("this"); |
9655 | return true; |
9656 | } else if (clang::FunctionDecl *function_decl = |
9657 | llvm::dyn_cast<clang::FunctionDecl>(decl_ctx)) { |
9658 | ClangASTMetadata *metadata = GetMetadata(function_decl); |
9659 | if (metadata && metadata->HasObjectPtr()) { |
9660 | if (is_instance_method_ptr) |
9661 | *is_instance_method_ptr = true; |
9662 | if (language_ptr) |
9663 | *language_ptr = eLanguageTypeObjC; |
9664 | if (language_object_name_ptr) |
9665 | language_object_name_ptr->SetCString(metadata->GetObjectPtrName()); |
9666 | return true; |
9667 | } |
9668 | } |
9669 | } |
9670 | return false; |
9671 | } |
9672 | |
9673 | bool TypeSystemClang::DeclContextIsContainedInLookup( |
9674 | void *opaque_decl_ctx, void *other_opaque_decl_ctx) { |
9675 | auto *decl_ctx = (clang::DeclContext *)opaque_decl_ctx; |
9676 | auto *other = (clang::DeclContext *)other_opaque_decl_ctx; |
9677 | |
9678 | do { |
9679 | // A decl context always includes its own contents in its lookup. |
9680 | if (decl_ctx == other) |
9681 | return true; |
9682 | |
9683 | // If we have an inline namespace, then the lookup of the parent context |
9684 | // also includes the inline namespace contents. |
9685 | } while (other->isInlineNamespace() && (other = other->getParent())); |
9686 | |
9687 | return false; |
9688 | } |
9689 | |
9690 | static bool IsClangDeclContext(const CompilerDeclContext &dc) { |
9691 | return dc.IsValid() && isa<TypeSystemClang>(dc.GetTypeSystem()); |
9692 | } |
9693 | |
9694 | clang::DeclContext * |
9695 | TypeSystemClang::DeclContextGetAsDeclContext(const CompilerDeclContext &dc) { |
9696 | if (IsClangDeclContext(dc)) |
9697 | return (clang::DeclContext *)dc.GetOpaqueDeclContext(); |
9698 | return nullptr; |
9699 | } |
9700 | |
9701 | ObjCMethodDecl * |
9702 | TypeSystemClang::DeclContextGetAsObjCMethodDecl(const CompilerDeclContext &dc) { |
9703 | if (IsClangDeclContext(dc)) |
9704 | return llvm::dyn_cast<clang::ObjCMethodDecl>( |
9705 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); |
9706 | return nullptr; |
9707 | } |
9708 | |
9709 | CXXMethodDecl * |
9710 | TypeSystemClang::DeclContextGetAsCXXMethodDecl(const CompilerDeclContext &dc) { |
9711 | if (IsClangDeclContext(dc)) |
9712 | return llvm::dyn_cast<clang::CXXMethodDecl>( |
9713 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); |
9714 | return nullptr; |
9715 | } |
9716 | |
9717 | clang::FunctionDecl * |
9718 | TypeSystemClang::DeclContextGetAsFunctionDecl(const CompilerDeclContext &dc) { |
9719 | if (IsClangDeclContext(dc)) |
9720 | return llvm::dyn_cast<clang::FunctionDecl>( |
9721 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); |
9722 | return nullptr; |
9723 | } |
9724 | |
9725 | clang::NamespaceDecl * |
9726 | TypeSystemClang::DeclContextGetAsNamespaceDecl(const CompilerDeclContext &dc) { |
9727 | if (IsClangDeclContext(dc)) |
9728 | return llvm::dyn_cast<clang::NamespaceDecl>( |
9729 | (clang::DeclContext *)dc.GetOpaqueDeclContext()); |
9730 | return nullptr; |
9731 | } |
9732 | |
9733 | ClangASTMetadata * |
9734 | TypeSystemClang::DeclContextGetMetaData(const CompilerDeclContext &dc, |
9735 | const Decl *object) { |
9736 | TypeSystemClang *ast = llvm::cast<TypeSystemClang>(dc.GetTypeSystem()); |
9737 | return ast->GetMetadata(object); |
9738 | } |
9739 | |
9740 | clang::ASTContext * |
9741 | TypeSystemClang::DeclContextGetTypeSystemClang(const CompilerDeclContext &dc) { |
9742 | TypeSystemClang *ast = |
9743 | llvm::dyn_cast_or_null<TypeSystemClang>(dc.GetTypeSystem()); |
9744 | if (ast) |
9745 | return &ast->getASTContext(); |
9746 | return nullptr; |
9747 | } |
9748 | |
9749 | namespace { |
9750 | /// A specialized scratch AST used within ScratchTypeSystemClang. |
9751 | /// These are the ASTs backing the different IsolatedASTKinds. They behave |
9752 | /// like a normal ScratchTypeSystemClang but they don't own their own |
9753 | /// persistent storage or target reference. |
9754 | class SpecializedScratchAST : public TypeSystemClang { |
9755 | public: |
9756 | /// \param name The display name of the TypeSystemClang instance. |
9757 | /// \param triple The triple used for the TypeSystemClang instance. |
9758 | /// \param ast_source The ClangASTSource that should be used to complete |
9759 | /// type information. |
9760 | SpecializedScratchAST(llvm::StringRef name, llvm::Triple triple, |
9761 | std::unique_ptr<ClangASTSource> ast_source) |
9762 | : TypeSystemClang(name, triple), |
9763 | m_scratch_ast_source_up(std::move(ast_source)) { |
9764 | // Setup the ClangASTSource to complete this AST. |
9765 | m_scratch_ast_source_up->InstallASTContext(*this); |
9766 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> proxy_ast_source( |
9767 | m_scratch_ast_source_up->CreateProxy()); |
9768 | SetExternalSource(proxy_ast_source); |
9769 | } |
9770 | |
9771 | /// The ExternalASTSource that performs lookups and completes types. |
9772 | std::unique_ptr<ClangASTSource> m_scratch_ast_source_up; |
9773 | }; |
9774 | } // namespace |
9775 | |
9776 | char ScratchTypeSystemClang::ID; |
9777 | const llvm::NoneType ScratchTypeSystemClang::DefaultAST = llvm::None; |
9778 | |
9779 | ScratchTypeSystemClang::ScratchTypeSystemClang(Target &target, |
9780 | llvm::Triple triple) |
9781 | : TypeSystemClang("scratch ASTContext", triple), m_triple(triple), |
9782 | m_target_wp(target.shared_from_this()), |
9783 | m_persistent_variables( |
9784 | new ClangPersistentVariables(target.shared_from_this())) { |
9785 | m_scratch_ast_source_up = CreateASTSource(); |
9786 | m_scratch_ast_source_up->InstallASTContext(*this); |
9787 | llvm::IntrusiveRefCntPtr<clang::ExternalASTSource> proxy_ast_source( |
9788 | m_scratch_ast_source_up->CreateProxy()); |
9789 | SetExternalSource(proxy_ast_source); |
9790 | } |
9791 | |
9792 | void ScratchTypeSystemClang::Finalize() { |
9793 | TypeSystemClang::Finalize(); |
9794 | m_scratch_ast_source_up.reset(); |
9795 | } |
9796 | |
9797 | TypeSystemClang * |
9798 | ScratchTypeSystemClang::GetForTarget(Target &target, |
9799 | llvm::Optional<IsolatedASTKind> ast_kind, |
9800 | bool create_on_demand) { |
9801 | auto type_system_or_err = target.GetScratchTypeSystemForLanguage( |
9802 | lldb::eLanguageTypeC, create_on_demand); |
9803 | if (auto err = type_system_or_err.takeError()) { |
9804 | LLDB_LOG_ERROR(GetLog(LLDBLog::Target), std::move(err),do { ::lldb_private::Log *log_private = (GetLog(LLDBLog::Target )); ::llvm::Error error_private = (std::move(err)); if (log_private && error_private) { log_private->FormatError(::std ::move(error_private), "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Couldn't get scratch TypeSystemClang"); } else :: llvm::consumeError(::std::move(error_private)); } while (0) |
9805 | "Couldn't get scratch TypeSystemClang")do { ::lldb_private::Log *log_private = (GetLog(LLDBLog::Target )); ::llvm::Error error_private = (std::move(err)); if (log_private && error_private) { log_private->FormatError(::std ::move(error_private), "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp" , __func__, "Couldn't get scratch TypeSystemClang"); } else :: llvm::consumeError(::std::move(error_private)); } while (0); |
9806 | return nullptr; |
9807 | } |
9808 | ScratchTypeSystemClang &scratch_ast = |
9809 | llvm::cast<ScratchTypeSystemClang>(type_system_or_err.get()); |
9810 | // If no dedicated sub-AST was requested, just return the main AST. |
9811 | if (ast_kind == DefaultAST) |
9812 | return &scratch_ast; |
9813 | // Search the sub-ASTs. |
9814 | return &scratch_ast.GetIsolatedAST(*ast_kind); |
9815 | } |
9816 | |
9817 | /// Returns a human-readable name that uniquely identifiers the sub-AST kind. |
9818 | static llvm::StringRef |
9819 | GetNameForIsolatedASTKind(ScratchTypeSystemClang::IsolatedASTKind kind) { |
9820 | switch (kind) { |
9821 | case ScratchTypeSystemClang::IsolatedASTKind::CppModules: |
9822 | return "C++ modules"; |
9823 | } |
9824 | llvm_unreachable("Unimplemented IsolatedASTKind?")::llvm::llvm_unreachable_internal("Unimplemented IsolatedASTKind?" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 9824); |
9825 | } |
9826 | |
9827 | void ScratchTypeSystemClang::Dump(llvm::raw_ostream &output) { |
9828 | // First dump the main scratch AST. |
9829 | output << "State of scratch Clang type system:\n"; |
9830 | TypeSystemClang::Dump(output); |
9831 | |
9832 | // Now sort the isolated sub-ASTs. |
9833 | typedef std::pair<IsolatedASTKey, TypeSystem *> KeyAndTS; |
9834 | std::vector<KeyAndTS> sorted_typesystems; |
9835 | for (const auto &a : m_isolated_asts) |
9836 | sorted_typesystems.emplace_back(a.first, a.second.get()); |
9837 | llvm::stable_sort(sorted_typesystems, |
9838 | [](const KeyAndTS &lhs, const KeyAndTS &rhs) { |
9839 | return lhs.first < rhs.first; |
9840 | }); |
9841 | |
9842 | // Dump each sub-AST too. |
9843 | for (const auto &a : sorted_typesystems) { |
9844 | IsolatedASTKind kind = |
9845 | static_cast<ScratchTypeSystemClang::IsolatedASTKind>(a.first); |
9846 | output << "State of scratch Clang type subsystem " |
9847 | << GetNameForIsolatedASTKind(kind) << ":\n"; |
9848 | a.second->Dump(output); |
9849 | } |
9850 | } |
9851 | |
9852 | UserExpression *ScratchTypeSystemClang::GetUserExpression( |
9853 | llvm::StringRef expr, llvm::StringRef prefix, lldb::LanguageType language, |
9854 | Expression::ResultType desired_type, |
9855 | const EvaluateExpressionOptions &options, ValueObject *ctx_obj) { |
9856 | TargetSP target_sp = m_target_wp.lock(); |
9857 | if (!target_sp) |
9858 | return nullptr; |
9859 | |
9860 | return new ClangUserExpression(*target_sp.get(), expr, prefix, language, |
9861 | desired_type, options, ctx_obj); |
9862 | } |
9863 | |
9864 | FunctionCaller *ScratchTypeSystemClang::GetFunctionCaller( |
9865 | const CompilerType &return_type, const Address &function_address, |
9866 | const ValueList &arg_value_list, const char *name) { |
9867 | TargetSP target_sp = m_target_wp.lock(); |
9868 | if (!target_sp) |
9869 | return nullptr; |
9870 | |
9871 | Process *process = target_sp->GetProcessSP().get(); |
9872 | if (!process) |
9873 | return nullptr; |
9874 | |
9875 | return new ClangFunctionCaller(*process, return_type, function_address, |
9876 | arg_value_list, name); |
9877 | } |
9878 | |
9879 | std::unique_ptr<UtilityFunction> |
9880 | ScratchTypeSystemClang::CreateUtilityFunction(std::string text, |
9881 | std::string name) { |
9882 | TargetSP target_sp = m_target_wp.lock(); |
9883 | if (!target_sp) |
9884 | return {}; |
9885 | |
9886 | return std::make_unique<ClangUtilityFunction>( |
9887 | *target_sp.get(), std::move(text), std::move(name), |
9888 | target_sp->GetDebugUtilityExpression()); |
9889 | } |
9890 | |
9891 | PersistentExpressionState * |
9892 | ScratchTypeSystemClang::GetPersistentExpressionState() { |
9893 | return m_persistent_variables.get(); |
9894 | } |
9895 | |
9896 | void ScratchTypeSystemClang::ForgetSource(ASTContext *src_ctx, |
9897 | ClangASTImporter &importer) { |
9898 | // Remove it as a source from the main AST. |
9899 | importer.ForgetSource(&getASTContext(), src_ctx); |
9900 | // Remove it as a source from all created sub-ASTs. |
9901 | for (const auto &a : m_isolated_asts) |
9902 | importer.ForgetSource(&a.second->getASTContext(), src_ctx); |
9903 | } |
9904 | |
9905 | std::unique_ptr<ClangASTSource> ScratchTypeSystemClang::CreateASTSource() { |
9906 | return std::make_unique<ClangASTSource>( |
9907 | m_target_wp.lock()->shared_from_this(), |
9908 | m_persistent_variables->GetClangASTImporter()); |
9909 | } |
9910 | |
9911 | static llvm::StringRef |
9912 | GetSpecializedASTName(ScratchTypeSystemClang::IsolatedASTKind feature) { |
9913 | switch (feature) { |
9914 | case ScratchTypeSystemClang::IsolatedASTKind::CppModules: |
9915 | return "scratch ASTContext for C++ module types"; |
9916 | } |
9917 | llvm_unreachable("Unimplemented ASTFeature kind?")::llvm::llvm_unreachable_internal("Unimplemented ASTFeature kind?" , "lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp", 9917); |
9918 | } |
9919 | |
9920 | TypeSystemClang &ScratchTypeSystemClang::GetIsolatedAST( |
9921 | ScratchTypeSystemClang::IsolatedASTKind feature) { |
9922 | auto found_ast = m_isolated_asts.find(feature); |
9923 | if (found_ast != m_isolated_asts.end()) |
9924 | return *found_ast->second; |
9925 | |
9926 | // Couldn't find the requested sub-AST, so create it now. |
9927 | std::unique_ptr<TypeSystemClang> new_ast; |
9928 | new_ast.reset(new SpecializedScratchAST(GetSpecializedASTName(feature), |
9929 | m_triple, CreateASTSource())); |
9930 | m_isolated_asts[feature] = std::move(new_ast); |
9931 | return *m_isolated_asts[feature]; |
9932 | } |