clang -cc1 -cc1 -triple amd64-unknown-openbsd7.0 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name SemaCast.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model static -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/usr/src/gnu/usr.bin/clang/libclangSema/obj -resource-dir /usr/local/lib/clang/13.0.0 -I /usr/src/gnu/usr.bin/clang/libclangSema/obj/../include/clang/Sema -I /usr/src/gnu/usr.bin/clang/libclangSema/../../../llvm/clang/include -I /usr/src/gnu/usr.bin/clang/libclangSema/../../../llvm/llvm/include -I /usr/src/gnu/usr.bin/clang/libclangSema/../include -I /usr/src/gnu/usr.bin/clang/libclangSema/obj -I /usr/src/gnu/usr.bin/clang/libclangSema/obj/../include -D NDEBUG -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -D __STDC_FORMAT_MACROS -D LLVM_PREFIX="/usr" -internal-isystem /usr/include/c++/v1 -internal-isystem /usr/local/lib/clang/13.0.0/include -internal-externc-isystem /usr/include -O2 -Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -Wno-comment -std=c++14 -fdeprecated-macro -fdebug-compilation-dir=/usr/src/gnu/usr.bin/clang/libclangSema/obj -ferror-limit 19 -fvisibility-inlines-hidden -fwrapv -stack-protector 2 -fno-rtti -fgnuc-version=4.2.1 -vectorize-loops -vectorize-slp -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /home/ben/Projects/vmm/scan-build/2022-01-12-194120-40624-1 -x c++ /usr/src/gnu/usr.bin/clang/libclangSema/../../../llvm/clang/lib/Sema/SemaCast.cpp
1 | |
2 | |
3 | |
4 | |
5 | |
6 | |
7 | |
8 | |
9 | |
10 | |
11 | |
12 | |
13 | |
14 | |
15 | |
16 | #include "clang/AST/ASTContext.h" |
17 | #include "clang/AST/ASTStructuralEquivalence.h" |
18 | #include "clang/AST/CXXInheritance.h" |
19 | #include "clang/AST/ExprCXX.h" |
20 | #include "clang/AST/ExprObjC.h" |
21 | #include "clang/AST/RecordLayout.h" |
22 | #include "clang/Basic/PartialDiagnostic.h" |
23 | #include "clang/Basic/TargetInfo.h" |
24 | #include "clang/Lex/Preprocessor.h" |
25 | #include "clang/Sema/Initialization.h" |
26 | #include "clang/Sema/SemaInternal.h" |
27 | #include "llvm/ADT/SmallVector.h" |
28 | #include <set> |
29 | using namespace clang; |
30 | |
31 | |
32 | |
33 | enum TryCastResult { |
34 | TC_NotApplicable, |
35 | TC_Success, |
36 | TC_Extension, |
37 | |
38 | TC_Failed |
39 | |
40 | }; |
41 | |
42 | static bool isValidCast(TryCastResult TCR) { |
43 | return TCR == TC_Success || TCR == TC_Extension; |
44 | } |
45 | |
46 | enum CastType { |
47 | CT_Const, |
48 | CT_Static, |
49 | CT_Reinterpret, |
50 | CT_Dynamic, |
51 | CT_CStyle, |
52 | CT_Functional, |
53 | CT_Addrspace |
54 | }; |
55 | |
56 | namespace { |
57 | struct CastOperation { |
58 | CastOperation(Sema &S, QualType destType, ExprResult src) |
59 | : Self(S), SrcExpr(src), DestType(destType), |
60 | ResultType(destType.getNonLValueExprType(S.Context)), |
61 | ValueKind(Expr::getValueKindForType(destType)), |
62 | Kind(CK_Dependent), IsARCUnbridgedCast(false) { |
63 | |
64 | |
65 | |
66 | |
67 | |
68 | if (!S.Context.getLangOpts().ObjC && !DestType->isRecordType() && |
69 | !DestType->isArrayType()) { |
70 | DestType = DestType.getUnqualifiedType(); |
71 | } |
72 | |
73 | if (const BuiltinType *placeholder = |
74 | src.get()->getType()->getAsPlaceholderType()) { |
75 | PlaceholderKind = placeholder->getKind(); |
76 | } else { |
77 | PlaceholderKind = (BuiltinType::Kind) 0; |
78 | } |
79 | } |
80 | |
81 | Sema &Self; |
82 | ExprResult SrcExpr; |
83 | QualType DestType; |
84 | QualType ResultType; |
85 | ExprValueKind ValueKind; |
86 | CastKind Kind; |
87 | BuiltinType::Kind PlaceholderKind; |
88 | CXXCastPath BasePath; |
89 | bool IsARCUnbridgedCast; |
90 | |
91 | SourceRange OpRange; |
92 | SourceRange DestRange; |
93 | |
94 | |
95 | void CheckConstCast(); |
96 | void CheckReinterpretCast(); |
97 | void CheckStaticCast(); |
98 | void CheckDynamicCast(); |
99 | void CheckCXXCStyleCast(bool FunctionalCast, bool ListInitialization); |
100 | void CheckCStyleCast(); |
101 | void CheckBuiltinBitCast(); |
102 | void CheckAddrspaceCast(); |
103 | |
104 | void updatePartOfExplicitCastFlags(CastExpr *CE) { |
105 | |
106 | |
107 | |
108 | for (; auto *ICE = dyn_cast<ImplicitCastExpr>(CE->getSubExpr()); CE = ICE) |
109 | ICE->setIsPartOfExplicitCast(true); |
110 | } |
111 | |
112 | |
113 | |
114 | ExprResult complete(CastExpr *castExpr) { |
115 | |
116 | |
117 | if (IsARCUnbridgedCast) { |
118 | castExpr = ImplicitCastExpr::Create( |
119 | Self.Context, Self.Context.ARCUnbridgedCastTy, CK_Dependent, |
120 | castExpr, nullptr, castExpr->getValueKind(), |
121 | Self.CurFPFeatureOverrides()); |
122 | } |
123 | updatePartOfExplicitCastFlags(castExpr); |
124 | return castExpr; |
125 | } |
126 | |
127 | |
128 | |
129 | |
130 | |
131 | |
132 | bool claimPlaceholder(BuiltinType::Kind K) { |
133 | if (PlaceholderKind != K) return false; |
134 | |
135 | PlaceholderKind = (BuiltinType::Kind) 0; |
136 | return true; |
137 | } |
138 | |
139 | bool isPlaceholder() const { |
140 | return PlaceholderKind != 0; |
141 | } |
142 | bool isPlaceholder(BuiltinType::Kind K) const { |
143 | return PlaceholderKind == K; |
144 | } |
145 | |
146 | |
147 | void checkAddressSpaceCast(QualType SrcType, QualType DestType); |
148 | |
149 | void checkCastAlign() { |
150 | Self.CheckCastAlign(SrcExpr.get(), DestType, OpRange); |
151 | } |
152 | |
153 | void checkObjCConversion(Sema::CheckedConversionKind CCK) { |
154 | assert(Self.getLangOpts().allowsNonTrivialObjCLifetimeQualifiers()); |
155 | |
156 | Expr *src = SrcExpr.get(); |
157 | if (Self.CheckObjCConversion(OpRange, DestType, src, CCK) == |
158 | Sema::ACR_unbridged) |
159 | IsARCUnbridgedCast = true; |
160 | SrcExpr = src; |
161 | } |
162 | |
163 | |
164 | void checkNonOverloadPlaceholders() { |
165 | if (!isPlaceholder() || isPlaceholder(BuiltinType::Overload)) |
166 | return; |
167 | |
168 | SrcExpr = Self.CheckPlaceholderExpr(SrcExpr.get()); |
169 | if (SrcExpr.isInvalid()) |
170 | return; |
171 | PlaceholderKind = (BuiltinType::Kind) 0; |
172 | } |
173 | }; |
174 | |
175 | void CheckNoDeref(Sema &S, const QualType FromType, const QualType ToType, |
176 | SourceLocation OpLoc) { |
177 | if (const auto *PtrType = dyn_cast<PointerType>(FromType)) { |
178 | if (PtrType->getPointeeType()->hasAttr(attr::NoDeref)) { |
179 | if (const auto *DestType = dyn_cast<PointerType>(ToType)) { |
180 | if (!DestType->getPointeeType()->hasAttr(attr::NoDeref)) { |
181 | S.Diag(OpLoc, diag::warn_noderef_to_dereferenceable_pointer); |
182 | } |
183 | } |
184 | } |
185 | } |
186 | } |
187 | |
188 | struct CheckNoDerefRAII { |
189 | CheckNoDerefRAII(CastOperation &Op) : Op(Op) {} |
190 | ~CheckNoDerefRAII() { |
191 | if (!Op.SrcExpr.isInvalid()) |
192 | CheckNoDeref(Op.Self, Op.SrcExpr.get()->getType(), Op.ResultType, |
193 | Op.OpRange.getBegin()); |
194 | } |
195 | |
196 | CastOperation &Op; |
197 | }; |
198 | } |
199 | |
200 | static void DiagnoseCastQual(Sema &Self, const ExprResult &SrcExpr, |
201 | QualType DestType); |
202 | |
203 | |
204 | |
205 | |
206 | |
207 | |
208 | |
209 | |
210 | |
211 | |
212 | |
213 | |
214 | static TryCastResult TryLValueToRValueCast(Sema &Self, Expr *SrcExpr, |
215 | QualType DestType, bool CStyle, |
216 | CastKind &Kind, |
217 | CXXCastPath &BasePath, |
218 | unsigned &msg); |
219 | static TryCastResult TryStaticReferenceDowncast(Sema &Self, Expr *SrcExpr, |
220 | QualType DestType, bool CStyle, |
221 | SourceRange OpRange, |
222 | unsigned &msg, |
223 | CastKind &Kind, |
224 | CXXCastPath &BasePath); |
225 | static TryCastResult TryStaticPointerDowncast(Sema &Self, QualType SrcType, |
226 | QualType DestType, bool CStyle, |
227 | SourceRange OpRange, |
228 | unsigned &msg, |
229 | CastKind &Kind, |
230 | CXXCastPath &BasePath); |
231 | static TryCastResult TryStaticDowncast(Sema &Self, CanQualType SrcType, |
232 | CanQualType DestType, bool CStyle, |
233 | SourceRange OpRange, |
234 | QualType OrigSrcType, |
235 | QualType OrigDestType, unsigned &msg, |
236 | CastKind &Kind, |
237 | CXXCastPath &BasePath); |
238 | static TryCastResult TryStaticMemberPointerUpcast(Sema &Self, ExprResult &SrcExpr, |
239 | QualType SrcType, |
240 | QualType DestType,bool CStyle, |
241 | SourceRange OpRange, |
242 | unsigned &msg, |
243 | CastKind &Kind, |
244 | CXXCastPath &BasePath); |
245 | |
246 | static TryCastResult TryStaticImplicitCast(Sema &Self, ExprResult &SrcExpr, |
247 | QualType DestType, |
248 | Sema::CheckedConversionKind CCK, |
249 | SourceRange OpRange, |
250 | unsigned &msg, CastKind &Kind, |
251 | bool ListInitialization); |
252 | static TryCastResult TryStaticCast(Sema &Self, ExprResult &SrcExpr, |
253 | QualType DestType, |
254 | Sema::CheckedConversionKind CCK, |
255 | SourceRange OpRange, |
256 | unsigned &msg, CastKind &Kind, |
257 | CXXCastPath &BasePath, |
258 | bool ListInitialization); |
259 | static TryCastResult TryConstCast(Sema &Self, ExprResult &SrcExpr, |
260 | QualType DestType, bool CStyle, |
261 | unsigned &msg); |
262 | static TryCastResult TryReinterpretCast(Sema &Self, ExprResult &SrcExpr, |
263 | QualType DestType, bool CStyle, |
264 | SourceRange OpRange, unsigned &msg, |
265 | CastKind &Kind); |
266 | static TryCastResult TryAddressSpaceCast(Sema &Self, ExprResult &SrcExpr, |
267 | QualType DestType, bool CStyle, |
268 | unsigned &msg, CastKind &Kind); |
269 | |
270 | |
271 | |
272 | ExprResult |
273 | Sema::ActOnCXXNamedCast(SourceLocation OpLoc, tok::TokenKind Kind, |
274 | SourceLocation LAngleBracketLoc, Declarator &D, |
275 | SourceLocation RAngleBracketLoc, |
276 | SourceLocation LParenLoc, Expr *E, |
277 | SourceLocation RParenLoc) { |
278 | |
279 | assert(!D.isInvalidType()); |
280 | |
281 | TypeSourceInfo *TInfo = GetTypeForDeclaratorCast(D, E->getType()); |
282 | if (D.isInvalidType()) |
| |
283 | return ExprError(); |
284 | |
285 | if (getLangOpts().CPlusPlus) { |
| 2 | | Assuming field 'CPlusPlus' is 0 | |
|
| |
286 | |
287 | CheckExtraCXXDefaultArguments(D); |
288 | } |
289 | |
290 | return BuildCXXNamedCast(OpLoc, Kind, TInfo, E, |
| 4 | | Calling 'Sema::BuildCXXNamedCast' | |
|
291 | SourceRange(LAngleBracketLoc, RAngleBracketLoc), |
292 | SourceRange(LParenLoc, RParenLoc)); |
293 | } |
294 | |
295 | ExprResult |
296 | Sema::BuildCXXNamedCast(SourceLocation OpLoc, tok::TokenKind Kind, |
297 | TypeSourceInfo *DestTInfo, Expr *E, |
298 | SourceRange AngleBrackets, SourceRange Parens) { |
299 | ExprResult Ex = E; |
300 | QualType DestType = DestTInfo->getType(); |
301 | |
302 | |
303 | bool TypeDependent = |
304 | DestType->isDependentType() || Ex.get()->isTypeDependent(); |
| 5 | | Assuming the condition is false | |
|
305 | |
306 | CastOperation Op(*this, DestType, E); |
307 | Op.OpRange = SourceRange(OpLoc, Parens.getEnd()); |
308 | Op.DestRange = AngleBrackets; |
309 | |
310 | switch (Kind) { |
| 6 | | Control jumps to 'case kw_static_cast:' at line 366 | |
|
311 | default: llvm_unreachable("Unknown C++ cast!"); |
312 | |
313 | case tok::kw_addrspace_cast: |
314 | if (!TypeDependent) { |
315 | Op.CheckAddrspaceCast(); |
316 | if (Op.SrcExpr.isInvalid()) |
317 | return ExprError(); |
318 | } |
319 | return Op.complete(CXXAddrspaceCastExpr::Create( |
320 | Context, Op.ResultType, Op.ValueKind, Op.Kind, Op.SrcExpr.get(), |
321 | DestTInfo, OpLoc, Parens.getEnd(), AngleBrackets)); |
322 | |
323 | case tok::kw_const_cast: |
324 | if (!TypeDependent) { |
325 | Op.CheckConstCast(); |
326 | if (Op.SrcExpr.isInvalid()) |
327 | return ExprError(); |
328 | DiscardMisalignedMemberAddress(DestType.getTypePtr(), E); |
329 | } |
330 | return Op.complete(CXXConstCastExpr::Create(Context, Op.ResultType, |
331 | Op.ValueKind, Op.SrcExpr.get(), DestTInfo, |
332 | OpLoc, Parens.getEnd(), |
333 | AngleBrackets)); |
334 | |
335 | case tok::kw_dynamic_cast: { |
336 | |
337 | if (getLangOpts().OpenCLCPlusPlus) { |
338 | return ExprError(Diag(OpLoc, diag::err_openclcxx_not_supported) |
339 | << "dynamic_cast"); |
340 | } |
341 | |
342 | if (!TypeDependent) { |
343 | Op.CheckDynamicCast(); |
344 | if (Op.SrcExpr.isInvalid()) |
345 | return ExprError(); |
346 | } |
347 | return Op.complete(CXXDynamicCastExpr::Create(Context, Op.ResultType, |
348 | Op.ValueKind, Op.Kind, Op.SrcExpr.get(), |
349 | &Op.BasePath, DestTInfo, |
350 | OpLoc, Parens.getEnd(), |
351 | AngleBrackets)); |
352 | } |
353 | case tok::kw_reinterpret_cast: { |
354 | if (!TypeDependent) { |
355 | Op.CheckReinterpretCast(); |
356 | if (Op.SrcExpr.isInvalid()) |
357 | return ExprError(); |
358 | DiscardMisalignedMemberAddress(DestType.getTypePtr(), E); |
359 | } |
360 | return Op.complete(CXXReinterpretCastExpr::Create(Context, Op.ResultType, |
361 | Op.ValueKind, Op.Kind, Op.SrcExpr.get(), |
362 | nullptr, DestTInfo, OpLoc, |
363 | Parens.getEnd(), |
364 | AngleBrackets)); |
365 | } |
366 | case tok::kw_static_cast: { |
367 | if (!TypeDependent) { |
| 7 | | Assuming 'TypeDependent' is false | |
|
| |
368 | Op.CheckStaticCast(); |
| 9 | | Calling 'CastOperation::CheckStaticCast' | |
|
369 | if (Op.SrcExpr.isInvalid()) |
370 | return ExprError(); |
371 | DiscardMisalignedMemberAddress(DestType.getTypePtr(), E); |
372 | } |
373 | |
374 | return Op.complete(CXXStaticCastExpr::Create( |
375 | Context, Op.ResultType, Op.ValueKind, Op.Kind, Op.SrcExpr.get(), |
376 | &Op.BasePath, DestTInfo, CurFPFeatureOverrides(), OpLoc, |
377 | Parens.getEnd(), AngleBrackets)); |
378 | } |
379 | } |
380 | } |
381 | |
382 | ExprResult Sema::ActOnBuiltinBitCastExpr(SourceLocation KWLoc, Declarator &D, |
383 | ExprResult Operand, |
384 | SourceLocation RParenLoc) { |
385 | assert(!D.isInvalidType()); |
386 | |
387 | TypeSourceInfo *TInfo = GetTypeForDeclaratorCast(D, Operand.get()->getType()); |
388 | if (D.isInvalidType()) |
389 | return ExprError(); |
390 | |
391 | return BuildBuiltinBitCastExpr(KWLoc, TInfo, Operand.get(), RParenLoc); |
392 | } |
393 | |
394 | ExprResult Sema::BuildBuiltinBitCastExpr(SourceLocation KWLoc, |
395 | TypeSourceInfo *TSI, Expr *Operand, |
396 | SourceLocation RParenLoc) { |
397 | CastOperation Op(*this, TSI->getType(), Operand); |
398 | Op.OpRange = SourceRange(KWLoc, RParenLoc); |
399 | TypeLoc TL = TSI->getTypeLoc(); |
400 | Op.DestRange = SourceRange(TL.getBeginLoc(), TL.getEndLoc()); |
401 | |
402 | if (!Operand->isTypeDependent() && !TSI->getType()->isDependentType()) { |
403 | Op.CheckBuiltinBitCast(); |
404 | if (Op.SrcExpr.isInvalid()) |
405 | return ExprError(); |
406 | } |
407 | |
408 | BuiltinBitCastExpr *BCE = |
409 | new (Context) BuiltinBitCastExpr(Op.ResultType, Op.ValueKind, Op.Kind, |
410 | Op.SrcExpr.get(), TSI, KWLoc, RParenLoc); |
411 | return Op.complete(BCE); |
412 | } |
413 | |
414 | |
415 | |
416 | static bool tryDiagnoseOverloadedCast(Sema &S, CastType CT, |
417 | SourceRange range, Expr *src, |
418 | QualType destType, |
419 | bool listInitialization) { |
420 | switch (CT) { |
421 | |
422 | case CT_Const: |
423 | case CT_Reinterpret: |
424 | case CT_Dynamic: |
425 | case CT_Addrspace: |
426 | return false; |
427 | |
428 | |
429 | case CT_Static: |
430 | case CT_CStyle: |
431 | case CT_Functional: |
432 | break; |
433 | } |
434 | |
435 | QualType srcType = src->getType(); |
436 | if (!destType->isRecordType() && !srcType->isRecordType()) |
437 | return false; |
438 | |
439 | InitializedEntity entity = InitializedEntity::InitializeTemporary(destType); |
440 | InitializationKind initKind |
441 | = (CT == CT_CStyle)? InitializationKind::CreateCStyleCast(range.getBegin(), |
442 | range, listInitialization) |
443 | : (CT == CT_Functional)? InitializationKind::CreateFunctionalCast(range, |
444 | listInitialization) |
445 | : InitializationKind::CreateCast( range); |
446 | InitializationSequence sequence(S, entity, initKind, src); |
447 | |
448 | assert(sequence.Failed() && "initialization succeeded on second try?"); |
449 | switch (sequence.getFailureKind()) { |
450 | default: return false; |
451 | |
452 | case InitializationSequence::FK_ConstructorOverloadFailed: |
453 | case InitializationSequence::FK_UserConversionOverloadFailed: |
454 | break; |
455 | } |
456 | |
457 | OverloadCandidateSet &candidates = sequence.getFailedCandidateSet(); |
458 | |
459 | unsigned msg = 0; |
460 | OverloadCandidateDisplayKind howManyCandidates = OCD_AllCandidates; |
461 | |
462 | switch (sequence.getFailedOverloadResult()) { |
463 | case OR_Success: llvm_unreachable("successful failed overload"); |
464 | case OR_No_Viable_Function: |
465 | if (candidates.empty()) |
466 | msg = diag::err_ovl_no_conversion_in_cast; |
467 | else |
468 | msg = diag::err_ovl_no_viable_conversion_in_cast; |
469 | howManyCandidates = OCD_AllCandidates; |
470 | break; |
471 | |
472 | case OR_Ambiguous: |
473 | msg = diag::err_ovl_ambiguous_conversion_in_cast; |
474 | howManyCandidates = OCD_AmbiguousCandidates; |
475 | break; |
476 | |
477 | case OR_Deleted: |
478 | msg = diag::err_ovl_deleted_conversion_in_cast; |
479 | howManyCandidates = OCD_ViableCandidates; |
480 | break; |
481 | } |
482 | |
483 | candidates.NoteCandidates( |
484 | PartialDiagnosticAt(range.getBegin(), |
485 | S.PDiag(msg) << CT << srcType << destType << range |
486 | << src->getSourceRange()), |
487 | S, howManyCandidates, src); |
488 | |
489 | return true; |
490 | } |
491 | |
492 | |
493 | static void diagnoseBadCast(Sema &S, unsigned msg, CastType castType, |
494 | SourceRange opRange, Expr *src, QualType destType, |
495 | bool listInitialization) { |
496 | if (msg == diag::err_bad_cxx_cast_generic && |
497 | tryDiagnoseOverloadedCast(S, castType, opRange, src, destType, |
498 | listInitialization)) |
499 | return; |
500 | |
501 | S.Diag(opRange.getBegin(), msg) << castType |
502 | << src->getType() << destType << opRange << src->getSourceRange(); |
503 | |
504 | |
505 | int DifferentPtrness = 0; |
506 | QualType From = destType; |
507 | if (auto Ptr = From->getAs<PointerType>()) { |
508 | From = Ptr->getPointeeType(); |
509 | DifferentPtrness++; |
510 | } |
511 | QualType To = src->getType(); |
512 | if (auto Ptr = To->getAs<PointerType>()) { |
513 | To = Ptr->getPointeeType(); |
514 | DifferentPtrness--; |
515 | } |
516 | if (!DifferentPtrness) { |
517 | auto RecFrom = From->getAs<RecordType>(); |
518 | auto RecTo = To->getAs<RecordType>(); |
519 | if (RecFrom && RecTo) { |
520 | auto DeclFrom = RecFrom->getAsCXXRecordDecl(); |
521 | if (!DeclFrom->isCompleteDefinition()) |
522 | S.Diag(DeclFrom->getLocation(), diag::note_type_incomplete) << DeclFrom; |
523 | auto DeclTo = RecTo->getAsCXXRecordDecl(); |
524 | if (!DeclTo->isCompleteDefinition()) |
525 | S.Diag(DeclTo->getLocation(), diag::note_type_incomplete) << DeclTo; |
526 | } |
527 | } |
528 | } |
529 | |
530 | namespace { |
531 | |
532 | |
533 | enum CastAwayConstnessKind { |
534 | |
535 | CACK_None = 0, |
536 | |
537 | CACK_Similar = 1, |
538 | |
539 | |
540 | CACK_SimilarKind = 2, |
541 | |
542 | |
543 | CACK_Incoherent = 3, |
544 | }; |
545 | } |
546 | |
547 | |
548 | |
549 | |
550 | |
551 | |
552 | |
553 | |
554 | |
555 | |
556 | |
557 | |
558 | |
559 | static CastAwayConstnessKind |
560 | unwrapCastAwayConstnessLevel(ASTContext &Context, QualType &T1, QualType &T2) { |
561 | enum { None, Ptr, MemPtr, BlockPtr, Array }; |
562 | auto Classify = [](QualType T) { |
563 | if (T->isAnyPointerType()) return Ptr; |
564 | if (T->isMemberPointerType()) return MemPtr; |
565 | if (T->isBlockPointerType()) return BlockPtr; |
566 | |
567 | |
568 | if (T->isConstantArrayType() || T->isIncompleteArrayType()) return Array; |
569 | return None; |
570 | }; |
571 | |
572 | auto Unwrap = [&](QualType T) { |
573 | if (auto *AT = Context.getAsArrayType(T)) |
574 | return AT->getElementType(); |
575 | return T->getPointeeType(); |
576 | }; |
577 | |
578 | CastAwayConstnessKind Kind; |
579 | |
580 | if (T2->isReferenceType()) { |
581 | |
582 | |
583 | |
584 | |
585 | T2 = T2->getPointeeType(); |
586 | Kind = CastAwayConstnessKind::CACK_Similar; |
587 | } else if (Context.UnwrapSimilarTypes(T1, T2)) { |
588 | Kind = CastAwayConstnessKind::CACK_Similar; |
589 | } else { |
590 | |
591 | int T1Class = Classify(T1); |
592 | if (T1Class == None) |
593 | return CastAwayConstnessKind::CACK_None; |
594 | |
595 | int T2Class = Classify(T2); |
596 | if (T2Class == None) |
597 | return CastAwayConstnessKind::CACK_None; |
598 | |
599 | T1 = Unwrap(T1); |
600 | T2 = Unwrap(T2); |
601 | Kind = T1Class == T2Class ? CastAwayConstnessKind::CACK_SimilarKind |
602 | : CastAwayConstnessKind::CACK_Incoherent; |
603 | } |
604 | |
605 | |
606 | |
607 | |
608 | |
609 | while (true) { |
610 | Context.UnwrapSimilarArrayTypes(T1, T2); |
611 | |
612 | if (Classify(T1) != Array) |
613 | break; |
614 | |
615 | auto T2Class = Classify(T2); |
616 | if (T2Class == None) |
617 | break; |
618 | |
619 | if (T2Class != Array) |
620 | Kind = CastAwayConstnessKind::CACK_Incoherent; |
621 | else if (Kind != CastAwayConstnessKind::CACK_Incoherent) |
622 | Kind = CastAwayConstnessKind::CACK_SimilarKind; |
623 | |
624 | T1 = Unwrap(T1); |
625 | T2 = Unwrap(T2).withCVRQualifiers(T2.getCVRQualifiers()); |
626 | } |
627 | |
628 | return Kind; |
629 | } |
630 | |
631 | |
632 | |
633 | |
634 | |
635 | |
636 | |
637 | static CastAwayConstnessKind |
638 | CastsAwayConstness(Sema &Self, QualType SrcType, QualType DestType, |
639 | bool CheckCVR, bool CheckObjCLifetime, |
640 | QualType *TheOffendingSrcType = nullptr, |
641 | QualType *TheOffendingDestType = nullptr, |
642 | Qualifiers *CastAwayQualifiers = nullptr) { |
643 | |
644 | |
645 | if (!CheckCVR && CheckObjCLifetime && !Self.Context.getLangOpts().ObjC) |
646 | return CastAwayConstnessKind::CACK_None; |
647 | |
648 | if (!DestType->isReferenceType()) { |
649 | assert((SrcType->isAnyPointerType() || SrcType->isMemberPointerType() || |
650 | SrcType->isBlockPointerType()) && |
651 | "Source type is not pointer or pointer to member."); |
652 | assert((DestType->isAnyPointerType() || DestType->isMemberPointerType() || |
653 | DestType->isBlockPointerType()) && |
654 | "Destination type is not pointer or pointer to member."); |
655 | } |
656 | |
657 | QualType UnwrappedSrcType = Self.Context.getCanonicalType(SrcType), |
658 | UnwrappedDestType = Self.Context.getCanonicalType(DestType); |
659 | |
660 | |
661 | |
662 | |
663 | QualType PrevUnwrappedSrcType = UnwrappedSrcType; |
664 | QualType PrevUnwrappedDestType = UnwrappedDestType; |
665 | auto WorstKind = CastAwayConstnessKind::CACK_Similar; |
666 | bool AllConstSoFar = true; |
667 | while (auto Kind = unwrapCastAwayConstnessLevel( |
668 | Self.Context, UnwrappedSrcType, UnwrappedDestType)) { |
669 | |
670 | |
671 | if (Kind > WorstKind) |
672 | WorstKind = Kind; |
673 | |
674 | |
675 | Qualifiers SrcQuals, DestQuals; |
676 | Self.Context.getUnqualifiedArrayType(UnwrappedSrcType, SrcQuals); |
677 | Self.Context.getUnqualifiedArrayType(UnwrappedDestType, DestQuals); |
678 | |
679 | |
680 | |
681 | |
682 | if (UnwrappedSrcType->isObjCObjectType() || |
683 | UnwrappedDestType->isObjCObjectType()) |
684 | SrcQuals.removeConst(); |
685 | |
686 | if (CheckCVR) { |
687 | Qualifiers SrcCvrQuals = |
688 | Qualifiers::fromCVRMask(SrcQuals.getCVRQualifiers()); |
689 | Qualifiers DestCvrQuals = |
690 | Qualifiers::fromCVRMask(DestQuals.getCVRQualifiers()); |
691 | |
692 | if (SrcCvrQuals != DestCvrQuals) { |
693 | if (CastAwayQualifiers) |
694 | *CastAwayQualifiers = SrcCvrQuals - DestCvrQuals; |
695 | |
696 | |
697 | if (!DestCvrQuals.compatiblyIncludes(SrcCvrQuals)) { |
698 | if (TheOffendingSrcType) |
699 | *TheOffendingSrcType = PrevUnwrappedSrcType; |
700 | if (TheOffendingDestType) |
701 | *TheOffendingDestType = PrevUnwrappedDestType; |
702 | return WorstKind; |
703 | } |
704 | |
705 | |
706 | |
707 | if (!AllConstSoFar) |
708 | return WorstKind; |
709 | } |
710 | } |
711 | |
712 | if (CheckObjCLifetime && |
713 | !DestQuals.compatiblyIncludesObjCLifetime(SrcQuals)) |
714 | return WorstKind; |
715 | |
716 | |
717 | |
718 | if (AllConstSoFar && !DestQuals.hasConst()) { |
719 | AllConstSoFar = false; |
720 | if (TheOffendingSrcType) |
721 | *TheOffendingSrcType = PrevUnwrappedSrcType; |
722 | if (TheOffendingDestType) |
723 | *TheOffendingDestType = PrevUnwrappedDestType; |
724 | } |
725 | |
726 | PrevUnwrappedSrcType = UnwrappedSrcType; |
727 | PrevUnwrappedDestType = UnwrappedDestType; |
728 | } |
729 | |
730 | return CastAwayConstnessKind::CACK_None; |
731 | } |
732 | |
733 | static TryCastResult getCastAwayConstnessCastKind(CastAwayConstnessKind CACK, |
734 | unsigned &DiagID) { |
735 | switch (CACK) { |
736 | case CastAwayConstnessKind::CACK_None: |
737 | llvm_unreachable("did not cast away constness"); |
738 | |
739 | case CastAwayConstnessKind::CACK_Similar: |
740 | |
741 | case CastAwayConstnessKind::CACK_SimilarKind: |
742 | DiagID = diag::err_bad_cxx_cast_qualifiers_away; |
743 | return TC_Failed; |
744 | |
745 | case CastAwayConstnessKind::CACK_Incoherent: |
746 | DiagID = diag::ext_bad_cxx_cast_qualifiers_away_incoherent; |
747 | return TC_Extension; |
748 | } |
749 | |
750 | llvm_unreachable("unexpected cast away constness kind"); |
751 | } |
752 | |
753 | |
754 | |
755 | |
756 | void CastOperation::CheckDynamicCast() { |
757 | CheckNoDerefRAII NoderefCheck(*this); |
758 | |
759 | if (ValueKind == VK_PRValue) |
760 | SrcExpr = Self.DefaultFunctionArrayLvalueConversion(SrcExpr.get()); |
761 | else if (isPlaceholder()) |
762 | SrcExpr = Self.CheckPlaceholderExpr(SrcExpr.get()); |
763 | if (SrcExpr.isInvalid()) |
764 | return; |
765 | |
766 | QualType OrigSrcType = SrcExpr.get()->getType(); |
767 | QualType DestType = Self.Context.getCanonicalType(this->DestType); |
768 | |
769 | |
770 | |
771 | |
772 | QualType DestPointee; |
773 | const PointerType *DestPointer = DestType->getAs<PointerType>(); |
774 | const ReferenceType *DestReference = nullptr; |
775 | if (DestPointer) { |
776 | DestPointee = DestPointer->getPointeeType(); |
777 | } else if ((DestReference = DestType->getAs<ReferenceType>())) { |
778 | DestPointee = DestReference->getPointeeType(); |
779 | } else { |
780 | Self.Diag(OpRange.getBegin(), diag::err_bad_dynamic_cast_not_ref_or_ptr) |
781 | << this->DestType << DestRange; |
782 | SrcExpr = ExprError(); |
783 | return; |
784 | } |
785 | |
786 | const RecordType *DestRecord = DestPointee->getAs<RecordType>(); |
787 | if (DestPointee->isVoidType()) { |
788 | assert(DestPointer && "Reference to void is not possible"); |
789 | } else if (DestRecord) { |
790 | if (Self.RequireCompleteType(OpRange.getBegin(), DestPointee, |
791 | diag::err_bad_cast_incomplete, |
792 | DestRange)) { |
793 | SrcExpr = ExprError(); |
794 | return; |
795 | } |
796 | } else { |
797 | Self.Diag(OpRange.getBegin(), diag::err_bad_dynamic_cast_not_class) |
798 | << DestPointee.getUnqualifiedType() << DestRange; |
799 | SrcExpr = ExprError(); |
800 | return; |
801 | } |
802 | |
803 | |
804 | |
805 | |
806 | |
807 | QualType SrcType = Self.Context.getCanonicalType(OrigSrcType); |
808 | QualType SrcPointee; |
809 | if (DestPointer) { |
810 | if (const PointerType *SrcPointer = SrcType->getAs<PointerType>()) { |
811 | SrcPointee = SrcPointer->getPointeeType(); |
812 | } else { |
813 | Self.Diag(OpRange.getBegin(), diag::err_bad_dynamic_cast_not_ptr) |
814 | << OrigSrcType << this->DestType << SrcExpr.get()->getSourceRange(); |
815 | SrcExpr = ExprError(); |
816 | return; |
817 | } |
818 | } else if (DestReference->isLValueReferenceType()) { |
819 | if (!SrcExpr.get()->isLValue()) { |
820 | Self.Diag(OpRange.getBegin(), diag::err_bad_cxx_cast_rvalue) |
821 | << CT_Dynamic << OrigSrcType << this->DestType << OpRange; |
822 | } |
823 | SrcPointee = SrcType; |
824 | } else { |
825 | |
826 | |
827 | if (SrcExpr.get()->isPRValue()) |
828 | SrcExpr = Self.CreateMaterializeTemporaryExpr( |
829 | SrcType, SrcExpr.get(), false); |
830 | SrcPointee = SrcType; |
831 | } |
832 | |
833 | const RecordType *SrcRecord = SrcPointee->getAs<RecordType>(); |
834 | if (SrcRecord) { |
835 | if (Self.RequireCompleteType(OpRange.getBegin(), SrcPointee, |
836 | diag::err_bad_cast_incomplete, |
837 | SrcExpr.get())) { |
838 | SrcExpr = ExprError(); |
839 | return; |
840 | } |
841 | } else { |
842 | Self.Diag(OpRange.getBegin(), diag::err_bad_dynamic_cast_not_class) |
843 | << SrcPointee.getUnqualifiedType() << SrcExpr.get()->getSourceRange(); |
844 | SrcExpr = ExprError(); |
845 | return; |
846 | } |
847 | |
848 | assert((DestPointer || DestReference) && |
849 | "Bad destination non-ptr/ref slipped through."); |
850 | assert((DestRecord || DestPointee->isVoidType()) && |
851 | "Bad destination pointee slipped through."); |
852 | assert(SrcRecord && "Bad source pointee slipped through."); |
853 | |
854 | |
855 | if (!DestPointee.isAtLeastAsQualifiedAs(SrcPointee)) { |
856 | Self.Diag(OpRange.getBegin(), diag::err_bad_cxx_cast_qualifiers_away) |
857 | << CT_Dynamic << OrigSrcType << this->DestType << OpRange; |
858 | SrcExpr = ExprError(); |
859 | return; |
860 | } |
861 | |
862 | |
863 | |
864 | if (DestRecord == SrcRecord) { |
865 | Kind = CK_NoOp; |
866 | return; |
867 | } |
868 | |
869 | |
870 | |
871 | if (DestRecord && |
872 | Self.IsDerivedFrom(OpRange.getBegin(), SrcPointee, DestPointee)) { |
873 | if (Self.CheckDerivedToBaseConversion(SrcPointee, DestPointee, |
874 | OpRange.getBegin(), OpRange, |
875 | &BasePath)) { |
876 | SrcExpr = ExprError(); |
877 | return; |
878 | } |
879 | |
880 | Kind = CK_DerivedToBase; |
881 | return; |
882 | } |
883 | |
884 | |
885 | const RecordDecl *SrcDecl = SrcRecord->getDecl()->getDefinition(); |
886 | assert(SrcDecl && "Definition missing"); |
887 | if (!cast<CXXRecordDecl>(SrcDecl)->isPolymorphic()) { |
888 | Self.Diag(OpRange.getBegin(), diag::err_bad_dynamic_cast_not_polymorphic) |
889 | << SrcPointee.getUnqualifiedType() << SrcExpr.get()->getSourceRange(); |
890 | SrcExpr = ExprError(); |
891 | } |
892 | |
893 | |
894 | |
895 | |
896 | if (!Self.getLangOpts().RTTI && !DestPointee->isVoidType()) { |
897 | Self.Diag(OpRange.getBegin(), diag::err_no_dynamic_cast_with_fno_rtti); |
898 | SrcExpr = ExprError(); |
899 | return; |
900 | } |
901 | |
902 | |
903 | if (!Self.getLangOpts().RTTIData) { |
904 | bool MicrosoftABI = |
905 | Self.getASTContext().getTargetInfo().getCXXABI().isMicrosoft(); |
906 | bool isClangCL = Self.getDiagnostics().getDiagnosticOptions().getFormat() == |
907 | DiagnosticOptions::MSVC; |
908 | if (MicrosoftABI || !DestPointee->isVoidType()) |
909 | Self.Diag(OpRange.getBegin(), |
910 | diag::warn_no_dynamic_cast_with_rtti_disabled) |
911 | << isClangCL; |
912 | } |
913 | |
914 | |
915 | Kind = CK_Dynamic; |
916 | } |
917 | |
918 | |
919 | |
920 | |
921 | |
922 | |
923 | void CastOperation::CheckConstCast() { |
924 | CheckNoDerefRAII NoderefCheck(*this); |
925 | |
926 | if (ValueKind == VK_PRValue) |
927 | SrcExpr = Self.DefaultFunctionArrayLvalueConversion(SrcExpr.get()); |
928 | else if (isPlaceholder()) |
929 | SrcExpr = Self.CheckPlaceholderExpr(SrcExpr.get()); |
930 | if (SrcExpr.isInvalid()) |
931 | return; |
932 | |
933 | unsigned msg = diag::err_bad_cxx_cast_generic; |
934 | auto TCR = TryConstCast(Self, SrcExpr, DestType, false, msg); |
935 | if (TCR != TC_Success && msg != 0) { |
936 | Self.Diag(OpRange.getBegin(), msg) << CT_Const |
937 | << SrcExpr.get()->getType() << DestType << OpRange; |
938 | } |
939 | if (!isValidCast(TCR)) |
940 | SrcExpr = ExprError(); |
941 | } |
942 | |
943 | void CastOperation::CheckAddrspaceCast() { |
944 | unsigned msg = diag::err_bad_cxx_cast_generic; |
945 | auto TCR = |
946 | TryAddressSpaceCast(Self, SrcExpr, DestType, false, msg, Kind); |
947 | if (TCR != TC_Success && msg != 0) { |
948 | Self.Diag(OpRange.getBegin(), msg) |
949 | << CT_Addrspace << SrcExpr.get()->getType() << DestType << OpRange; |
950 | } |
951 | if (!isValidCast(TCR)) |
952 | SrcExpr = ExprError(); |
953 | } |
954 | |
955 | |
956 | |
957 | static void DiagnoseReinterpretUpDownCast(Sema &Self, const Expr *SrcExpr, |
958 | QualType DestType, |
959 | SourceRange OpRange) { |
960 | QualType SrcType = SrcExpr->getType(); |
961 | |
962 | |
963 | const CXXRecordDecl *SrcPointeeRD = SrcType->getPointeeCXXRecordDecl(); |
964 | const CXXRecordDecl *SrcRD = |
965 | SrcPointeeRD ? SrcPointeeRD : SrcType->getAsCXXRecordDecl(); |
966 | |
967 | |
968 | |
969 | |
970 | if (!SrcRD || !SrcRD->isCompleteDefinition() || SrcRD->isInvalidDecl()) |
971 | return; |
972 | |
973 | const CXXRecordDecl *DestRD = DestType->getPointeeCXXRecordDecl(); |
974 | |
975 | if (!DestRD || !DestRD->isCompleteDefinition() || DestRD->isInvalidDecl()) |
976 | return; |
977 | |
978 | enum { |
979 | ReinterpretUpcast, |
980 | ReinterpretDowncast |
981 | } ReinterpretKind; |
982 | |
983 | CXXBasePaths BasePaths; |
984 | |
985 | if (SrcRD->isDerivedFrom(DestRD, BasePaths)) |
986 | ReinterpretKind = ReinterpretUpcast; |
987 | else if (DestRD->isDerivedFrom(SrcRD, BasePaths)) |
988 | ReinterpretKind = ReinterpretDowncast; |
989 | else |
990 | return; |
991 | |
992 | bool VirtualBase = true; |
993 | bool NonZeroOffset = false; |
994 | for (CXXBasePaths::const_paths_iterator I = BasePaths.begin(), |
995 | E = BasePaths.end(); |
996 | I != E; ++I) { |
997 | const CXXBasePath &Path = *I; |
998 | CharUnits Offset = CharUnits::Zero(); |
999 | bool IsVirtual = false; |
1000 | for (CXXBasePath::const_iterator IElem = Path.begin(), EElem = Path.end(); |
1001 | IElem != EElem; ++IElem) { |
1002 | IsVirtual = IElem->Base->isVirtual(); |
1003 | if (IsVirtual) |
1004 | break; |
1005 | const CXXRecordDecl *BaseRD = IElem->Base->getType()->getAsCXXRecordDecl(); |
1006 | assert(BaseRD && "Base type should be a valid unqualified class type"); |
1007 | |
1008 | |
1009 | const CXXRecordDecl *Class = IElem->Class, |
1010 | *ClassDefinition = Class->getDefinition(); |
1011 | if (Class->isInvalidDecl() || !ClassDefinition || |
1012 | !ClassDefinition->isCompleteDefinition()) |
1013 | return; |
1014 | |
1015 | const ASTRecordLayout &DerivedLayout = |
1016 | Self.Context.getASTRecordLayout(Class); |
1017 | Offset += DerivedLayout.getBaseClassOffset(BaseRD); |
1018 | } |
1019 | if (!IsVirtual) { |
1020 | |
1021 | if (Offset.isZero()) |
1022 | return; |
1023 | |
1024 | else |
1025 | NonZeroOffset = true; |
1026 | } |
1027 | VirtualBase = VirtualBase && IsVirtual; |
1028 | } |
1029 | |
1030 | (void) NonZeroOffset; |
1031 | assert((VirtualBase || NonZeroOffset) && |
1032 | "Should have returned if has non-virtual base with zero offset"); |
1033 | |
1034 | QualType BaseType = |
1035 | ReinterpretKind == ReinterpretUpcast? DestType : SrcType; |
1036 | QualType DerivedType = |
1037 | ReinterpretKind == ReinterpretUpcast? SrcType : DestType; |
1038 | |
1039 | SourceLocation BeginLoc = OpRange.getBegin(); |
1040 | Self.Diag(BeginLoc, diag::warn_reinterpret_different_from_static) |
1041 | << DerivedType << BaseType << !VirtualBase << int(ReinterpretKind) |
1042 | << OpRange; |
1043 | Self.Diag(BeginLoc, diag::note_reinterpret_updowncast_use_static) |
1044 | << int(ReinterpretKind) |
1045 | << FixItHint::CreateReplacement(BeginLoc, "static_cast"); |
1046 | } |
1047 | |
1048 | static bool argTypeIsABIEquivalent(QualType SrcType, QualType DestType, |
1049 | ASTContext &Context) { |
1050 | if (SrcType->isPointerType() && DestType->isPointerType()) |
1051 | return true; |
1052 | |
1053 | |
1054 | if (SrcType->isIntegralType(Context) && DestType->isIntegralType(Context)) |
1055 | if (Context.getTypeInfoInChars(SrcType).Width == |
1056 | Context.getTypeInfoInChars(DestType).Width) |
1057 | return true; |
1058 | |
1059 | return Context.hasSameUnqualifiedType(SrcType, DestType); |
1060 | } |
1061 | |
1062 | static bool checkCastFunctionType(Sema &Self, const ExprResult &SrcExpr, |
1063 | QualType DestType) { |
1064 | if (Self.Diags.isIgnored(diag::warn_cast_function_type, |
1065 | SrcExpr.get()->getExprLoc())) |
1066 | return true; |
1067 | |
1068 | QualType SrcType = SrcExpr.get()->getType(); |
1069 | const FunctionType *SrcFTy = nullptr; |
1070 | const FunctionType *DstFTy = nullptr; |
1071 | if (((SrcType->isBlockPointerType() || SrcType->isFunctionPointerType()) && |
1072 | DestType->isFunctionPointerType()) || |
1073 | (SrcType->isMemberFunctionPointerType() && |
1074 | DestType->isMemberFunctionPointerType())) { |
1075 | SrcFTy = SrcType->getPointeeType()->castAs<FunctionType>(); |
1076 | DstFTy = DestType->getPointeeType()->castAs<FunctionType>(); |
1077 | } else if (SrcType->isFunctionType() && DestType->isFunctionReferenceType()) { |
1078 | SrcFTy = SrcType->castAs<FunctionType>(); |
1079 | DstFTy = DestType.getNonReferenceType()->castAs<FunctionType>(); |
1080 | } else { |
1081 | return true; |
1082 | } |
1083 | assert(SrcFTy && DstFTy); |
1084 | |
1085 | auto IsVoidVoid = [](const FunctionType *T) { |
1086 | if (!T->getReturnType()->isVoidType()) |
1087 | return false; |
1088 | if (const auto *PT = T->getAs<FunctionProtoType>()) |
1089 | return !PT->isVariadic() && PT->getNumParams() == 0; |
1090 | return false; |
1091 | }; |
1092 | |
1093 | |
1094 | if (IsVoidVoid(SrcFTy) || IsVoidVoid(DstFTy)) |
1095 | return true; |
1096 | |
1097 | |
1098 | if (!argTypeIsABIEquivalent(SrcFTy->getReturnType(), DstFTy->getReturnType(), |
1099 | Self.Context)) |
1100 | return false; |
1101 | |
1102 | |
1103 | if (SrcFTy->isFunctionNoProtoType() || DstFTy->isFunctionNoProtoType()) |
1104 | return true; |
1105 | |
1106 | |
1107 | |
1108 | const auto *SrcFPTy = cast<FunctionProtoType>(SrcFTy); |
1109 | const auto *DstFPTy = cast<FunctionProtoType>(DstFTy); |
1110 | |
1111 | |
1112 | |
1113 | unsigned NumParams = SrcFPTy->getNumParams(); |
1114 | unsigned DstNumParams = DstFPTy->getNumParams(); |
1115 | if (NumParams > DstNumParams) { |
1116 | if (!DstFPTy->isVariadic()) |
1117 | return false; |
1118 | NumParams = DstNumParams; |
1119 | } else if (NumParams < DstNumParams) { |
1120 | if (!SrcFPTy->isVariadic()) |
1121 | return false; |
1122 | } |
1123 | |
1124 | for (unsigned i = 0; i < NumParams; ++i) |
1125 | if (!argTypeIsABIEquivalent(SrcFPTy->getParamType(i), |
1126 | DstFPTy->getParamType(i), Self.Context)) |
1127 | return false; |
1128 | |
1129 | return true; |
1130 | } |
1131 | |
1132 | |
1133 | |
1134 | |
1135 | |
1136 | |
1137 | void CastOperation::CheckReinterpretCast() { |
1138 | if (ValueKind == VK_PRValue && !isPlaceholder(BuiltinType::Overload)) |
1139 | SrcExpr = Self.DefaultFunctionArrayLvalueConversion(SrcExpr.get()); |
1140 | else |
1141 | checkNonOverloadPlaceholders(); |
1142 | if (SrcExpr.isInvalid()) |
1143 | return; |
1144 | |
1145 | unsigned msg = diag::err_bad_cxx_cast_generic; |
1146 | TryCastResult tcr = |
1147 | TryReinterpretCast(Self, SrcExpr, DestType, |
1148 | false, OpRange, msg, Kind); |
1149 | if (tcr != TC_Success && msg != 0) { |
1150 | if (SrcExpr.isInvalid()) |
1151 | return; |
1152 | if (SrcExpr.get()->getType() == Self.Context.OverloadTy) { |
1153 | |
1154 | Self.Diag(OpRange.getBegin(), diag::err_bad_reinterpret_cast_overload) |
1155 | << OverloadExpr::find(SrcExpr.get()).Expression->getName() |
1156 | << DestType << OpRange; |
1157 | Self.NoteAllOverloadCandidates(SrcExpr.get()); |
1158 | |
1159 | } else { |
1160 | diagnoseBadCast(Self, msg, CT_Reinterpret, OpRange, SrcExpr.get(), |
1161 | DestType, false); |
1162 | } |
1163 | } |
1164 | |
1165 | if (isValidCast(tcr)) { |
1166 | if (Self.getLangOpts().allowsNonTrivialObjCLifetimeQualifiers()) |
1167 | checkObjCConversion(Sema::CCK_OtherCast); |
1168 | DiagnoseReinterpretUpDownCast(Self, SrcExpr.get(), DestType, OpRange); |
1169 | |
1170 | if (!checkCastFunctionType(Self, SrcExpr, DestType)) |
1171 | Self.Diag(OpRange.getBegin(), diag::warn_cast_function_type) |
1172 | << SrcExpr.get()->getType() << DestType << OpRange; |
1173 | } else { |
1174 | SrcExpr = ExprError(); |
1175 | } |
1176 | } |
1177 | |
1178 | |
1179 | |
1180 | |
1181 | |
1182 | void CastOperation::CheckStaticCast() { |
1183 | CheckNoDerefRAII NoderefCheck(*this); |
1184 | |
1185 | if (isPlaceholder()) { |
| |
1186 | checkNonOverloadPlaceholders(); |
1187 | if (SrcExpr.isInvalid()) |
1188 | return; |
1189 | } |
1190 | |
1191 | |
1192 | |
1193 | |
1194 | if (DestType->isVoidType()) { |
| |
1195 | Kind = CK_ToVoid; |
1196 | |
1197 | if (claimPlaceholder(BuiltinType::Overload)) { |
1198 | Self.ResolveAndFixSingleFunctionTemplateSpecialization(SrcExpr, |
1199 | false, |
1200 | true, |
1201 | OpRange, DestType, diag::err_bad_static_cast_overload); |
1202 | if (SrcExpr.isInvalid()) |
1203 | return; |
1204 | } |
1205 | |
1206 | SrcExpr = Self.IgnoredValueConversions(SrcExpr.get()); |
1207 | return; |
1208 | } |
1209 | |
1210 | if (ValueKind == VK_PRValue && !DestType->isRecordType() && |
| 12 | | Assuming field 'ValueKind' is not equal to VK_PRValue | |
|
1211 | !isPlaceholder(BuiltinType::Overload)) { |
1212 | SrcExpr = Self.DefaultFunctionArrayLvalueConversion(SrcExpr.get()); |
1213 | if (SrcExpr.isInvalid()) |
1214 | return; |
1215 | } |
1216 | |
1217 | unsigned msg = diag::err_bad_cxx_cast_generic; |
1218 | TryCastResult tcr |
1219 | = TryStaticCast(Self, SrcExpr, DestType, Sema::CCK_OtherCast, OpRange, msg, |
| 13 | | Calling 'TryStaticCast' | |
|
1220 | Kind, BasePath, false); |
1221 | if (tcr != TC_Success && msg != 0) { |
1222 | if (SrcExpr.isInvalid()) |
1223 | return; |
1224 | if (SrcExpr.get()->getType() == Self.Context.OverloadTy) { |
1225 | OverloadExpr* oe = OverloadExpr::find(SrcExpr.get()).Expression; |
1226 | Self.Diag(OpRange.getBegin(), diag::err_bad_static_cast_overload) |
1227 | << oe->getName() << DestType << OpRange |
1228 | << oe->getQualifierLoc().getSourceRange(); |
1229 | Self.NoteAllOverloadCandidates(SrcExpr.get()); |
1230 | } else { |
1231 | diagnoseBadCast(Self, msg, CT_Static, OpRange, SrcExpr.get(), DestType, |
1232 | false); |
1233 | } |
1234 | } |
1235 | |
1236 | if (isValidCast(tcr)) { |
1237 | if (Kind == CK_BitCast) |
1238 | checkCastAlign(); |
1239 | if (Self.getLangOpts().allowsNonTrivialObjCLifetimeQualifiers()) |
1240 | checkObjCConversion(Sema::CCK_OtherCast); |
1241 | } else { |
1242 | SrcExpr = ExprError(); |
1243 | } |
1244 | } |
1245 | |
1246 | static bool IsAddressSpaceConversion(QualType SrcType, QualType DestType) { |
1247 | auto *SrcPtrType = SrcType->getAs<PointerType>(); |
1248 | if (!SrcPtrType) |
1249 | return false; |
1250 | auto *DestPtrType = DestType->getAs<PointerType>(); |
1251 | if (!DestPtrType) |
1252 | return false; |
1253 | return SrcPtrType->getPointeeType().getAddressSpace() != |
1254 | DestPtrType->getPointeeType().getAddressSpace(); |
1255 | } |
1256 | |
1257 | |
1258 | |
1259 | |
1260 | static TryCastResult TryStaticCast(Sema &Self, ExprResult &SrcExpr, |
1261 | QualType DestType, |
1262 | Sema::CheckedConversionKind CCK, |
1263 | SourceRange OpRange, unsigned &msg, |
1264 | CastKind &Kind, CXXCastPath &BasePath, |
1265 | bool ListInitialization) { |
1266 | |
1267 | bool CStyle |
1268 | = (CCK == Sema::CCK_CStyleCast || CCK == Sema::CCK_FunctionalCast); |
1269 | |
1270 | |
1271 | |
1272 | |
1273 | |
1274 | |
1275 | |
1276 | |
1277 | |
1278 | |
1279 | |
1280 | |
1281 | |
1282 | |
1283 | |
1284 | |
1285 | TryCastResult tcr; |
1286 | |
1287 | |
1288 | |
1289 | |
1290 | tcr = TryStaticReferenceDowncast(Self, SrcExpr.get(), DestType, CStyle, |
1291 | OpRange, msg, Kind, BasePath); |
1292 | if (tcr != TC_NotApplicable) |
| |
1293 | return tcr; |
1294 | |
1295 | |
1296 | |
1297 | |
1298 | tcr = TryLValueToRValueCast(Self, SrcExpr.get(), DestType, CStyle, Kind, |
1299 | BasePath, msg); |
1300 | if (tcr != TC_NotApplicable) |
| |
1301 | return tcr; |
1302 | |
1303 | |
1304 | |
1305 | tcr = TryStaticImplicitCast(Self, SrcExpr, DestType, CCK, OpRange, msg, |
1306 | Kind, ListInitialization); |
1307 | if (SrcExpr.isInvalid()) |
| 16 | | Assuming the condition is false | |
|
| |
1308 | return TC_Failed; |
1309 | if (tcr != TC_NotApplicable) |
| |
1310 | return tcr; |
1311 | |
1312 | |
1313 | |
1314 | |
1315 | |
1316 | |
1317 | |
1318 | |
1319 | |
1320 | QualType SrcType = Self.Context.getCanonicalType(SrcExpr.get()->getType()); |
1321 | |
1322 | |
1323 | |
1324 | |
1325 | if (const EnumType *Enum = SrcType->getAs<EnumType>()) { |
| 19 | | Assuming the object is not a 'EnumType' | |
|
| |
1326 | if (Enum->getDecl()->isScoped()) { |
1327 | if (DestType->isBooleanType()) { |
1328 | Kind = CK_IntegralToBoolean; |
1329 | return TC_Success; |
1330 | } else if (DestType->isIntegralType(Self.Context)) { |
1331 | Kind = CK_IntegralCast; |
1332 | return TC_Success; |
1333 | } else if (DestType->isRealFloatingType()) { |
1334 | Kind = CK_IntegralToFloating; |
1335 | return TC_Success; |
1336 | } |
1337 | } |
1338 | } |
1339 | |
1340 | |
1341 | |
1342 | |
1343 | |
1344 | |
1345 | |
1346 | |
1347 | |
1348 | if (DestType->isEnumeralType()) { |
| 21 | | Calling 'Type::isEnumeralType' | |
|
| 24 | | Returning from 'Type::isEnumeralType' | |
|
| |
1349 | if (Self.RequireCompleteType(OpRange.getBegin(), DestType, |
| 26 | | Assuming the condition is false | |
|
| |
1350 | diag::err_bad_cast_incomplete)) { |
1351 | SrcExpr = ExprError(); |
1352 | return TC_Failed; |
1353 | } |
1354 | if (SrcType->isIntegralOrEnumerationType()) { |
| 28 | | Calling 'Type::isIntegralOrEnumerationType' | |
|
| 38 | | Returning from 'Type::isIntegralOrEnumerationType' | |
|
| |
1355 | |
1356 | |
1357 | const EnumType *Enum = DestType->getAs<EnumType>(); |
| 40 | | Assuming the object is not a 'EnumType' | |
|
| 41 | | 'Enum' initialized to a null pointer value | |
|
1358 | Kind = Enum->getDecl()->isFixed() && |
| 42 | | Called C++ object pointer is null |
|
1359 | Enum->getDecl()->getIntegerType()->isBooleanType() |
1360 | ? CK_IntegralToBoolean |
1361 | : CK_IntegralCast; |
1362 | return TC_Success; |
1363 | } else if (SrcType->isRealFloatingType()) { |
1364 | Kind = CK_FloatingToIntegral; |
1365 | return TC_Success; |
1366 | } |
1367 | } |
1368 | |
1369 | |
1370 | |
1371 | tcr = TryStaticPointerDowncast(Self, SrcType, DestType, CStyle, OpRange, msg, |
1372 | Kind, BasePath); |
1373 | if (tcr != TC_NotApplicable) |
1374 | return tcr; |
1375 | |
1376 | |
1377 | |
1378 | |
1379 | tcr = TryStaticMemberPointerUpcast(Self, SrcExpr, SrcType, DestType, CStyle, |
1380 | OpRange, msg, Kind, BasePath); |
1381 | if (tcr != TC_NotApplicable) |
1382 | return tcr; |
1383 | |
1384 | |
1385 | |
1386 | |
1387 | if (const PointerType *SrcPointer = SrcType->getAs<PointerType>()) { |
1388 | QualType SrcPointee = SrcPointer->getPointeeType(); |
1389 | if (SrcPointee->isVoidType()) { |
1390 | if (const PointerType *DestPointer = DestType->getAs<PointerType>()) { |
1391 | QualType DestPointee = DestPointer->getPointeeType(); |
1392 | if (DestPointee->isIncompleteOrObjectType()) { |
1393 | |
1394 | |
1395 | |
1396 | if (!CStyle) { |
1397 | Qualifiers DestPointeeQuals = DestPointee.getQualifiers(); |
1398 | Qualifiers SrcPointeeQuals = SrcPointee.getQualifiers(); |
1399 | DestPointeeQuals.removeObjCGCAttr(); |
1400 | DestPointeeQuals.removeObjCLifetime(); |
1401 | SrcPointeeQuals.removeObjCGCAttr(); |
1402 | SrcPointeeQuals.removeObjCLifetime(); |
1403 | if (DestPointeeQuals != SrcPointeeQuals && |
1404 | !DestPointeeQuals.compatiblyIncludes(SrcPointeeQuals)) { |
1405 | msg = diag::err_bad_cxx_cast_qualifiers_away; |
1406 | return TC_Failed; |
1407 | } |
1408 | } |
1409 | Kind = IsAddressSpaceConversion(SrcType, DestType) |
1410 | ? CK_AddressSpaceConversion |
1411 | : CK_BitCast; |
1412 | return TC_Success; |
1413 | } |
1414 | |
1415 | |
1416 | |
1417 | if (!CStyle && Self.getLangOpts().MSVCCompat && |
1418 | DestPointee->isFunctionType()) { |
1419 | Self.Diag(OpRange.getBegin(), diag::ext_ms_cast_fn_obj) << OpRange; |
1420 | Kind = CK_BitCast; |
1421 | return TC_Success; |
1422 | } |
1423 | } |
1424 | else if (DestType->isObjCObjectPointerType()) { |
1425 | |
1426 | |
1427 | Kind = CK_CPointerToObjCPointerCast; |
1428 | return TC_Success; |
1429 | } |
1430 | else if (CStyle && DestType->isBlockPointerType()) { |
1431 | |
1432 | Kind = CK_AnyPointerToBlockPointerCast; |
1433 | return TC_Success; |
1434 | } |
1435 | } |
1436 | } |
1437 | |
1438 | if (SrcType->isObjCObjectPointerType() && |
1439 | DestType->isObjCObjectPointerType()) { |
1440 | Kind = CK_BitCast; |
1441 | return TC_Success; |
1442 | } |
1443 | |
1444 | |
1445 | if (!CStyle && |
1446 | Self.CheckTollFreeBridgeStaticCast(DestType, SrcExpr.get(), Kind)) |
1447 | return TC_Success; |
1448 | |
1449 | |
1450 | |
1451 | if (auto SrcPointer = SrcType->getAs<PointerType>()) |
1452 | if (auto DestPointer = DestType->getAs<PointerType>()) |
1453 | if (SrcPointer->getPointeeType()->getAs<RecordType>() && |
1454 | DestPointer->getPointeeType()->getAs<RecordType>()) |
1455 | msg = diag::err_bad_cxx_cast_unrelated_class; |
1456 | |
1457 | if (SrcType->isMatrixType() && DestType->isMatrixType()) { |
1458 | if (Self.CheckMatrixCast(OpRange, DestType, SrcType, Kind)) { |
1459 | SrcExpr = ExprError(); |
1460 | return TC_Failed; |
1461 | } |
1462 | return TC_Success; |
1463 | } |
1464 | |
1465 | |
1466 | return TC_NotApplicable; |
1467 | } |
1468 | |
1469 | |
1470 | TryCastResult TryLValueToRValueCast(Sema &Self, Expr *SrcExpr, |
1471 | QualType DestType, bool CStyle, |
1472 | CastKind &Kind, CXXCastPath &BasePath, |
1473 | unsigned &msg) { |
1474 | |
1475 | |
1476 | |
1477 | const RValueReferenceType *R = DestType->getAs<RValueReferenceType>(); |
1478 | if (!R) |
1479 | return TC_NotApplicable; |
1480 | |
1481 | if (!SrcExpr->isGLValue()) |
1482 | return TC_NotApplicable; |
1483 | |
1484 | |
1485 | |
1486 | |
1487 | QualType FromType = SrcExpr->getType(); |
1488 | QualType ToType = R->getPointeeType(); |
1489 | if (CStyle) { |
1490 | FromType = FromType.getUnqualifiedType(); |
1491 | ToType = ToType.getUnqualifiedType(); |
1492 | } |
1493 | |
1494 | Sema::ReferenceConversions RefConv; |
1495 | Sema::ReferenceCompareResult RefResult = Self.CompareReferenceRelationship( |
1496 | SrcExpr->getBeginLoc(), ToType, FromType, &RefConv); |
1497 | if (RefResult != Sema::Ref_Compatible) { |
1498 | if (CStyle || RefResult == Sema::Ref_Incompatible) |
1499 | return TC_NotApplicable; |
1500 | |
1501 | |
1502 | |
1503 | msg = SrcExpr->isLValue() ? diag::err_bad_lvalue_to_rvalue_cast |
1504 | : diag::err_bad_rvalue_to_rvalue_cast; |
1505 | return TC_Failed; |
1506 | } |
1507 | |
1508 | if (RefConv & Sema::ReferenceConversions::DerivedToBase) { |
1509 | Kind = CK_DerivedToBase; |
1510 | CXXBasePaths Paths(true, true, |
1511 | true); |
1512 | if (!Self.IsDerivedFrom(SrcExpr->getBeginLoc(), SrcExpr->getType(), |
1513 | R->getPointeeType(), Paths)) |
1514 | return TC_NotApplicable; |
1515 | |
1516 | Self.BuildBasePathArray(Paths, BasePath); |
1517 | } else |
1518 | Kind = CK_NoOp; |
1519 | |
1520 | return TC_Success; |
1521 | } |
1522 | |
1523 | |
1524 | TryCastResult |
1525 | TryStaticReferenceDowncast(Sema &Self, Expr *SrcExpr, QualType DestType, |
1526 | bool CStyle, SourceRange OpRange, |
1527 | unsigned &msg, CastKind &Kind, |
1528 | CXXCastPath &BasePath) { |
1529 | |
1530 | |
1531 | |
1532 | |
1533 | |
1534 | |
1535 | |
1536 | |
1537 | |
1538 | const ReferenceType *DestReference = DestType->getAs<ReferenceType>(); |
1539 | if (!DestReference) { |
1540 | return TC_NotApplicable; |
1541 | } |
1542 | bool RValueRef = DestReference->isRValueReferenceType(); |
1543 | if (!RValueRef && !SrcExpr->isLValue()) { |
1544 | |
1545 | msg = diag::err_bad_cxx_cast_rvalue; |
1546 | return TC_NotApplicable; |
1547 | } |
1548 | |
1549 | QualType DestPointee = DestReference->getPointeeType(); |
1550 | |
1551 | |
1552 | |
1553 | |
1554 | return TryStaticDowncast(Self, |
1555 | Self.Context.getCanonicalType(SrcExpr->getType()), |
1556 | Self.Context.getCanonicalType(DestPointee), CStyle, |
1557 | OpRange, SrcExpr->getType(), DestType, msg, Kind, |
1558 | BasePath); |
1559 | } |
1560 | |
1561 | |
1562 | TryCastResult |
1563 | TryStaticPointerDowncast(Sema &Self, QualType SrcType, QualType DestType, |
1564 | bool CStyle, SourceRange OpRange, |
1565 | unsigned &msg, CastKind &Kind, |
1566 | CXXCastPath &BasePath) { |
1567 | |
1568 | |
1569 | |
1570 | |
1571 | |
1572 | |
1573 | |
1574 | |
1575 | const PointerType *DestPointer = DestType->getAs<PointerType>(); |
1576 | if (!DestPointer) { |
1577 | return TC_NotApplicable; |
1578 | } |
1579 | |
1580 | const PointerType *SrcPointer = SrcType->getAs<PointerType>(); |
1581 | if (!SrcPointer) { |
1582 | msg = diag::err_bad_static_cast_pointer_nonpointer; |
1583 | return TC_NotApplicable; |
1584 | } |
1585 | |
1586 | return TryStaticDowncast(Self, |
1587 | Self.Context.getCanonicalType(SrcPointer->getPointeeType()), |
1588 | Self.Context.getCanonicalType(DestPointer->getPointeeType()), |
1589 | CStyle, OpRange, SrcType, DestType, msg, Kind, |
1590 | BasePath); |
1591 | } |
1592 | |
1593 | |
1594 | |
1595 | |
1596 | TryCastResult |
1597 | TryStaticDowncast(Sema &Self, CanQualType SrcType, CanQualType DestType, |
1598 | bool CStyle, SourceRange OpRange, QualType OrigSrcType, |
1599 | QualType OrigDestType, unsigned &msg, |
1600 | CastKind &Kind, CXXCastPath &BasePath) { |
1601 | |
1602 | if (!Self.isCompleteType(OpRange.getBegin(), SrcType) || |
1603 | !Self.isCompleteType(OpRange.getBegin(), DestType)) |
1604 | return TC_NotApplicable; |
1605 | |
1606 | |
1607 | if (!DestType->getAs<RecordType>() || !SrcType->getAs<RecordType>()) { |
1608 | return TC_NotApplicable; |
1609 | } |
1610 | |
1611 | CXXBasePaths Paths(true, true, |
1612 | true); |
1613 | if (!Self.IsDerivedFrom(OpRange.getBegin(), DestType, SrcType, Paths)) { |
1614 | return TC_NotApplicable; |
1615 | } |
1616 | |
1617 | |
1618 | |
1619 | |
1620 | |
1621 | |
1622 | |
1623 | |
1624 | |
1625 | |
1626 | |
1627 | |
1628 | |
1629 | |
1630 | |
1631 | |
1632 | |
1633 | |
1634 | |
1635 | |
1636 | if (!CStyle && !DestType.isAtLeastAsQualifiedAs(SrcType)) { |
1637 | msg = diag::err_bad_cxx_cast_qualifiers_away; |
1638 | return TC_Failed; |
1639 | } |
1640 | |
1641 | if (Paths.isAmbiguous(SrcType.getUnqualifiedType())) { |
1642 | |
1643 | |
1644 | |
1645 | |
1646 | if (!Paths.isRecordingPaths()) { |
1647 | Paths.clear(); |
1648 | Paths.setRecordingPaths(true); |
1649 | Self.IsDerivedFrom(OpRange.getBegin(), DestType, SrcType, Paths); |
1650 | } |
1651 | std::string PathDisplayStr; |
1652 | std::set<unsigned> DisplayedPaths; |
1653 | for (clang::CXXBasePath &Path : Paths) { |
1654 | if (DisplayedPaths.insert(Path.back().SubobjectNumber).second) { |
1655 | |
1656 | |
1657 | PathDisplayStr += "\n "; |
1658 | for (CXXBasePathElement &PE : llvm::reverse(Path)) |
1659 | PathDisplayStr += PE.Base->getType().getAsString() + " -> "; |
1660 | PathDisplayStr += QualType(DestType).getAsString(); |
1661 | } |
1662 | } |
1663 | |
1664 | Self.Diag(OpRange.getBegin(), diag::err_ambiguous_base_to_derived_cast) |
1665 | << QualType(SrcType).getUnqualifiedType() |
1666 | << QualType(DestType).getUnqualifiedType() |
1667 | << PathDisplayStr << OpRange; |
1668 | msg = 0; |
1669 | return TC_Failed; |
1670 | } |
1671 | |
1672 | if (Paths.getDetectedVirtual() != nullptr) { |
1673 | QualType VirtualBase(Paths.getDetectedVirtual(), 0); |
1674 | Self.Diag(OpRange.getBegin(), diag::err_static_downcast_via_virtual) |
1675 | << OrigSrcType << OrigDestType << VirtualBase << OpRange; |
1676 | msg = 0; |
1677 | return TC_Failed; |
1678 | } |
1679 | |
1680 | if (!CStyle) { |
1681 | switch (Self.CheckBaseClassAccess(OpRange.getBegin(), |
1682 | SrcType, DestType, |
1683 | Paths.front(), |
1684 | diag::err_downcast_from_inaccessible_base)) { |
1685 | case Sema::AR_accessible: |
1686 | case Sema::AR_delayed: |
1687 | case Sema::AR_dependent: |
1688 | break; |
1689 | |
1690 | case Sema::AR_inaccessible: |
1691 | msg = 0; |
1692 | return TC_Failed; |
1693 | } |
1694 | } |
1695 | |
1696 | Self.BuildBasePathArray(Paths, BasePath); |
1697 | Kind = CK_BaseToDerived; |
1698 | return TC_Success; |
1699 | } |
1700 | |
1701 | |
1702 | |
1703 | |
1704 | |
1705 | |
1706 | |
1707 | |
1708 | TryCastResult |
1709 | TryStaticMemberPointerUpcast(Sema &Self, ExprResult &SrcExpr, QualType SrcType, |
1710 | QualType DestType, bool CStyle, |
1711 | SourceRange OpRange, |
1712 | unsigned &msg, CastKind &Kind, |
1713 | CXXCastPath &BasePath) { |
1714 | const MemberPointerType *DestMemPtr = DestType->getAs<MemberPointerType>(); |
1715 | if (!DestMemPtr) |
1716 | return TC_NotApplicable; |
1717 | |
1718 | bool WasOverloadedFunction = false; |
1719 | DeclAccessPair FoundOverload; |
1720 | if (SrcExpr.get()->getType() == Self.Context.OverloadTy) { |
1721 | if (FunctionDecl *Fn |
1722 | = Self.ResolveAddressOfOverloadedFunction(SrcExpr.get(), DestType, false, |
1723 | FoundOverload)) { |
1724 | CXXMethodDecl *M = cast<CXXMethodDecl>(Fn); |
1725 | SrcType = Self.Context.getMemberPointerType(Fn->getType(), |
1726 | Self.Context.getTypeDeclType(M->getParent()).getTypePtr()); |
1727 | WasOverloadedFunction = true; |
1728 | } |
1729 | } |
1730 | |
1731 | const MemberPointerType *SrcMemPtr = SrcType->getAs<MemberPointerType>(); |
1732 | if (!SrcMemPtr) { |
1733 | msg = diag::err_bad_static_cast_member_pointer_nonmp; |
1734 | return TC_NotApplicable; |
1735 | } |
1736 | |
1737 | |
1738 | |
1739 | if (Self.Context.getTargetInfo().getCXXABI().isMicrosoft()) { |
1740 | (void)Self.isCompleteType(OpRange.getBegin(), SrcType); |
1741 | (void)Self.isCompleteType(OpRange.getBegin(), DestType); |
1742 | } |
1743 | |
1744 | |
1745 | if (!Self.Context.hasSameUnqualifiedType(SrcMemPtr->getPointeeType(), |
1746 | DestMemPtr->getPointeeType())) |
1747 | return TC_NotApplicable; |
1748 | |
1749 | |
1750 | QualType SrcClass(SrcMemPtr->getClass(), 0); |
1751 | QualType DestClass(DestMemPtr->getClass(), 0); |
1752 | CXXBasePaths Paths(true, true, |
1753 | true); |
1754 | if (!Self.IsDerivedFrom(OpRange.getBegin(), SrcClass, DestClass, Paths)) |
1755 | return TC_NotApplicable; |
1756 | |
1757 | |
1758 | if (Paths.isAmbiguous(Self.Context.getCanonicalType(DestClass))) { |
1759 | Paths.clear(); |
1760 | Paths.setRecordingPaths(true); |
1761 | bool StillOkay = |
1762 | Self.IsDerivedFrom(OpRange.getBegin(), SrcClass, DestClass, Paths); |
1763 | assert(StillOkay); |
1764 | (void)StillOkay; |
1765 | std::string PathDisplayStr = Self.getAmbiguousPathsDisplayString(Paths); |
1766 | Self.Diag(OpRange.getBegin(), diag::err_ambiguous_memptr_conv) |
1767 | << 1 << SrcClass << DestClass << PathDisplayStr << OpRange; |
1768 | msg = 0; |
1769 | return TC_Failed; |
1770 | } |
1771 | |
1772 | if (const RecordType *VBase = Paths.getDetectedVirtual()) { |
1773 | Self.Diag(OpRange.getBegin(), diag::err_memptr_conv_via_virtual) |
1774 | << SrcClass << DestClass << QualType(VBase, 0) << OpRange; |
1775 | msg = 0; |
1776 | return TC_Failed; |
1777 | } |
1778 | |
1779 | if (!CStyle) { |
1780 | switch (Self.CheckBaseClassAccess(OpRange.getBegin(), |
1781 | DestClass, SrcClass, |
1782 | Paths.front(), |
1783 | diag::err_upcast_to_inaccessible_base)) { |
1784 | case Sema::AR_accessible: |
1785 | case Sema::AR_delayed: |
1786 | case Sema::AR_dependent: |
1787 | |
1788 | |
1789 | break; |
1790 | |
1791 | case Sema::AR_inaccessible: |
1792 | msg = 0; |
1793 | return TC_Failed; |
1794 | } |
1795 | } |
1796 | |
1797 | if (WasOverloadedFunction) { |
1798 | |
1799 | |
1800 | FunctionDecl *Fn = Self.ResolveAddressOfOverloadedFunction(SrcExpr.get(), |
1801 | DestType, |
1802 | true, |
1803 | FoundOverload); |
1804 | if (!Fn) { |
1805 | msg = 0; |
1806 | return TC_Failed; |
1807 | } |
1808 | |
1809 | SrcExpr = Self.FixOverloadedFunctionReference(SrcExpr, FoundOverload, Fn); |
1810 | if (!SrcExpr.isUsable()) { |
1811 | msg = 0; |
1812 | return TC_Failed; |
1813 | } |
1814 | } |
1815 | |
1816 | Self.BuildBasePathArray(Paths, BasePath); |
1817 | Kind = CK_DerivedToBaseMemberPointer; |
1818 | return TC_Success; |
1819 | } |
1820 | |
1821 | |
1822 | |
1823 | |
1824 | |
1825 | |
1826 | TryCastResult |
1827 | TryStaticImplicitCast(Sema &Self, ExprResult &SrcExpr, QualType DestType, |
1828 | Sema::CheckedConversionKind CCK, |
1829 | SourceRange OpRange, unsigned &msg, |
1830 | CastKind &Kind, bool ListInitialization) { |
1831 | if (DestType->isRecordType()) { |
1832 | if (Self.RequireCompleteType(OpRange.getBegin(), DestType, |
1833 | diag::err_bad_cast_incomplete) || |
1834 | Self.RequireNonAbstractType(OpRange.getBegin(), DestType, |
1835 | diag::err_allocation_of_abstract_type)) { |
1836 | msg = 0; |
1837 | return TC_Failed; |
1838 | } |
1839 | } |
1840 | |
1841 | InitializedEntity Entity = InitializedEntity::InitializeTemporary(DestType); |
1842 | InitializationKind InitKind |
1843 | = (CCK == Sema::CCK_CStyleCast) |
1844 | ? InitializationKind::CreateCStyleCast(OpRange.getBegin(), OpRange, |
1845 | ListInitialization) |
1846 | : (CCK == Sema::CCK_FunctionalCast) |
1847 | ? InitializationKind::CreateFunctionalCast(OpRange, ListInitialization) |
1848 | : InitializationKind::CreateCast(OpRange); |
1849 | Expr *SrcExprRaw = SrcExpr.get(); |
1850 | |
1851 | |
1852 | |
1853 | InitializationSequence InitSeq(Self, Entity, InitKind, SrcExprRaw); |
1854 | |
1855 | |
1856 | |
1857 | |
1858 | |
1859 | |
1860 | bool CStyle |
1861 | = (CCK == Sema::CCK_CStyleCast || CCK == Sema::CCK_FunctionalCast); |
1862 | if (InitSeq.Failed() && (CStyle || !DestType->isReferenceType())) |
1863 | return TC_NotApplicable; |
1864 | |
1865 | ExprResult Result = InitSeq.Perform(Self, Entity, InitKind, SrcExprRaw); |
1866 | if (Result.isInvalid()) { |
1867 | msg = 0; |
1868 | return TC_Failed; |
1869 | } |
1870 | |
1871 | if (InitSeq.isConstructorInitialization()) |
1872 | Kind = CK_ConstructorConversion; |
1873 | else |
1874 | Kind = CK_NoOp; |
1875 | |
1876 | SrcExpr = Result; |
1877 | return TC_Success; |
1878 | } |
1879 | |
1880 | |
1881 | |
1882 | static TryCastResult TryConstCast(Sema &Self, ExprResult &SrcExpr, |
1883 | QualType DestType, bool CStyle, |
1884 | unsigned &msg) { |
1885 | DestType = Self.Context.getCanonicalType(DestType); |
1886 | QualType SrcType = SrcExpr.get()->getType(); |
1887 | bool NeedToMaterializeTemporary = false; |
1888 | |
1889 | if (const ReferenceType *DestTypeTmp =DestType->getAs<ReferenceType>()) { |
1890 | |
1891 | |
1892 | |
1893 | |
1894 | |
1895 | |
1896 | |
1897 | |
1898 | |
1899 | |
1900 | |
1901 | if (isa<LValueReferenceType>(DestTypeTmp) && !SrcExpr.get()->isLValue()) { |
1902 | |
1903 | |
1904 | |
1905 | msg = diag::err_bad_cxx_cast_rvalue; |
1906 | return TC_NotApplicable; |
1907 | } |
1908 | |
1909 | if (isa<RValueReferenceType>(DestTypeTmp) && SrcExpr.get()->isPRValue()) { |
1910 | if (!SrcType->isRecordType()) { |
1911 | |
1912 | |
1913 | msg = diag::err_bad_cxx_cast_rvalue; |
1914 | return TC_NotApplicable; |
1915 | } |
1916 | |
1917 | |
1918 | |
1919 | NeedToMaterializeTemporary = true; |
1920 | } |
1921 | |
1922 | |
1923 | |
1924 | |
1925 | |
1926 | |
1927 | if (SrcExpr.get()->refersToBitField()) { |
1928 | msg = diag::err_bad_cxx_cast_bitfield; |
1929 | return TC_NotApplicable; |
1930 | } |
1931 | |
1932 | DestType = Self.Context.getPointerType(DestTypeTmp->getPointeeType()); |
1933 | SrcType = Self.Context.getPointerType(SrcType); |
1934 | } |
1935 | |
1936 | |
1937 | |
1938 | |
1939 | if (!DestType->isPointerType() && |
1940 | !DestType->isMemberPointerType() && |
1941 | !DestType->isObjCObjectPointerType()) { |
1942 | |
1943 | |
1944 | |
1945 | |
1946 | |
1947 | if (!CStyle) |
1948 | msg = diag::err_bad_const_cast_dest; |
1949 | return TC_NotApplicable; |
1950 | } |
1951 | if (DestType->isFunctionPointerType() || |
1952 | DestType->isMemberFunctionPointerType()) { |
1953 | |
1954 | |
1955 | |
1956 | if (!CStyle) |
1957 | msg = diag::err_bad_const_cast_dest; |
1958 | return TC_NotApplicable; |
1959 | } |
1960 | |
1961 | |
1962 | |
1963 | |
1964 | |
1965 | |
1966 | |
1967 | if (!Self.Context.hasCvrSimilarType(SrcType, DestType)) |
1968 | return TC_NotApplicable; |
1969 | |
1970 | if (NeedToMaterializeTemporary) |
1971 | |
1972 | |
1973 | SrcExpr = Self.CreateMaterializeTemporaryExpr(SrcExpr.get()->getType(), |
1974 | SrcExpr.get(), |
1975 | false); |
1976 | |
1977 | return TC_Success; |
1978 | } |
1979 | |
1980 | |
1981 | |
1982 | |
1983 | |
1984 | |
1985 | void Sema::CheckCompatibleReinterpretCast(QualType SrcType, QualType DestType, |
1986 | bool IsDereference, |
1987 | SourceRange Range) { |
1988 | unsigned DiagID = IsDereference ? |
1989 | diag::warn_pointer_indirection_from_incompatible_type : |
1990 | diag::warn_undefined_reinterpret_cast; |
1991 | |
1992 | if (Diags.isIgnored(DiagID, Range.getBegin())) |
1993 | return; |
1994 | |
1995 | QualType SrcTy, DestTy; |
1996 | if (IsDereference) { |
1997 | if (!SrcType->getAs<PointerType>() || !DestType->getAs<PointerType>()) { |
1998 | return; |
1999 | } |
2000 | SrcTy = SrcType->getPointeeType(); |
2001 | DestTy = DestType->getPointeeType(); |
2002 | } else { |
2003 | if (!DestType->getAs<ReferenceType>()) { |
2004 | return; |
2005 | } |
2006 | SrcTy = SrcType; |
2007 | DestTy = DestType->getPointeeType(); |
2008 | } |
2009 | |
2010 | |
2011 | if (Context.hasSameUnqualifiedType(DestTy, SrcTy)) { |
2012 | return; |
2013 | } |
2014 | |
2015 | if (DestTy->isAnyCharacterType() || DestTy->isVoidType() || |
2016 | SrcTy->isAnyCharacterType() || SrcTy->isVoidType()) { |
2017 | return; |
2018 | } |
2019 | |
2020 | if (SrcTy->getAs<TagType>() || DestTy->getAs<TagType>()) { |
2021 | return; |
2022 | } |
2023 | |
2024 | |
2025 | if ((SrcTy->isUnsignedIntegerType() && DestTy->isSignedIntegerType()) || |
2026 | (SrcTy->isSignedIntegerType() && DestTy->isUnsignedIntegerType())) { |
2027 | if (Context.getTypeSize(DestTy) == Context.getTypeSize(SrcTy)) { |
2028 | return; |
2029 | } |
2030 | } |
2031 | |
2032 | Diag(Range.getBegin(), DiagID) << SrcType << DestType << Range; |
2033 | } |
2034 | |
2035 | static void DiagnoseCastOfObjCSEL(Sema &Self, const ExprResult &SrcExpr, |
2036 | QualType DestType) { |
2037 | QualType SrcType = SrcExpr.get()->getType(); |
2038 | if (Self.Context.hasSameType(SrcType, DestType)) |
2039 | return; |
2040 | if (const PointerType *SrcPtrTy = SrcType->getAs<PointerType>()) |
2041 | if (SrcPtrTy->isObjCSelType()) { |
2042 | QualType DT = DestType; |
2043 | if (isa<PointerType>(DestType)) |
2044 | DT = DestType->getPointeeType(); |
2045 | if (!DT.getUnqualifiedType()->isVoidType()) |
2046 | Self.Diag(SrcExpr.get()->getExprLoc(), |
2047 | diag::warn_cast_pointer_from_sel) |
2048 | << SrcType << DestType << SrcExpr.get()->getSourceRange(); |
2049 | } |
2050 | } |
2051 | |
2052 | |
2053 | |
2054 | static void DiagnoseCallingConvCast(Sema &Self, const ExprResult &SrcExpr, |
2055 | QualType DstType, SourceRange OpRange) { |
2056 | |
2057 | |
2058 | QualType SrcType = SrcExpr.get()->getType(); |
2059 | if (Self.Context.hasSameType(SrcType, DstType) || |
2060 | !SrcType->isFunctionPointerType() || !DstType->isFunctionPointerType()) |
2061 | return; |
2062 | const auto *SrcFTy = |
2063 | SrcType->castAs<PointerType>()->getPointeeType()->castAs<FunctionType>(); |
2064 | const auto *DstFTy = |
2065 | DstType->castAs<PointerType>()->getPointeeType()->castAs<FunctionType>(); |
2066 | CallingConv SrcCC = SrcFTy->getCallConv(); |
2067 | CallingConv DstCC = DstFTy->getCallConv(); |
2068 | if (SrcCC == DstCC) |
2069 | return; |
2070 | |
2071 | |
2072 | |
2073 | Expr *Src = SrcExpr.get()->IgnoreParenImpCasts(); |
2074 | if (auto *UO = dyn_cast<UnaryOperator>(Src)) |
2075 | if (UO->getOpcode() == UO_AddrOf) |
2076 | Src = UO->getSubExpr()->IgnoreParenImpCasts(); |
2077 | auto *DRE = dyn_cast<DeclRefExpr>(Src); |
2078 | if (!DRE) |
2079 | return; |
2080 | auto *FD = dyn_cast<FunctionDecl>(DRE->getDecl()); |
2081 | if (!FD) |
2082 | return; |
2083 | |
2084 | |
2085 | |
2086 | |
2087 | |
2088 | CallingConv DefaultCC = Self.getASTContext().getDefaultCallingConvention( |
2089 | FD->isVariadic(), FD->isCXXInstanceMember()); |
2090 | if (DstCC == DefaultCC || SrcCC != DefaultCC) |
2091 | return; |
2092 | |
2093 | |
2094 | StringRef SrcCCName = FunctionType::getNameForCallConv(SrcCC); |
2095 | StringRef DstCCName = FunctionType::getNameForCallConv(DstCC); |
2096 | Self.Diag(OpRange.getBegin(), diag::warn_cast_calling_conv) |
2097 | << SrcCCName << DstCCName << OpRange; |
2098 | |
2099 | |
2100 | |
2101 | |
2102 | if (Self.Diags.isIgnored(diag::warn_cast_calling_conv, OpRange.getBegin())) |
2103 | return; |
2104 | |
2105 | |
2106 | |
2107 | |
2108 | |
2109 | SourceLocation NameLoc = FD->getFirstDecl()->getNameInfo().getLoc(); |
2110 | Preprocessor &PP = Self.getPreprocessor(); |
2111 | SmallVector<TokenValue, 6> AttrTokens; |
2112 | SmallString<64> CCAttrText; |
2113 | llvm::raw_svector_ostream OS(CCAttrText); |
2114 | if (Self.getLangOpts().MicrosoftExt) { |
2115 | |
2116 | OS << "__" << DstCCName; |
2117 | IdentifierInfo *II = PP.getIdentifierInfo(OS.str()); |
2118 | AttrTokens.push_back(II->isKeyword(Self.getLangOpts()) |
2119 | ? TokenValue(II->getTokenID()) |
2120 | : TokenValue(II)); |
2121 | } else { |
2122 | |
2123 | OS << "__attribute__((" << DstCCName << "))"; |
2124 | AttrTokens.push_back(tok::kw___attribute); |
2125 | AttrTokens.push_back(tok::l_paren); |
2126 | AttrTokens.push_back(tok::l_paren); |
2127 | IdentifierInfo *II = PP.getIdentifierInfo(DstCCName); |
2128 | AttrTokens.push_back(II->isKeyword(Self.getLangOpts()) |
2129 | ? TokenValue(II->getTokenID()) |
2130 | : TokenValue(II)); |
2131 | AttrTokens.push_back(tok::r_paren); |
2132 | AttrTokens.push_back(tok::r_paren); |
2133 | } |
2134 | StringRef AttrSpelling = PP.getLastMacroWithSpelling(NameLoc, AttrTokens); |
2135 | if (!AttrSpelling.empty()) |
2136 | CCAttrText = AttrSpelling; |
2137 | OS << ' '; |
2138 | Self.Diag(NameLoc, diag::note_change_calling_conv_fixit) |
2139 | << FD << DstCCName << FixItHint::CreateInsertion(NameLoc, CCAttrText); |
2140 | } |
2141 | |
2142 | static void checkIntToPointerCast(bool CStyle, const SourceRange &OpRange, |
2143 | const Expr *SrcExpr, QualType DestType, |
2144 | Sema &Self) { |
2145 | QualType SrcType = SrcExpr->getType(); |
2146 | |
2147 | |
2148 | |
2149 | |
2150 | if (CStyle && SrcType->isIntegralType(Self.Context) |
2151 | && !SrcType->isBooleanType() |
2152 | && !SrcType->isEnumeralType() |
2153 | && !SrcExpr->isIntegerConstantExpr(Self.Context) |
2154 | && Self.Context.getTypeSize(DestType) > |
2155 | Self.Context.getTypeSize(SrcType)) { |
2156 | |
2157 | |
2158 | |
2159 | |
2160 | |
2161 | unsigned Diag = DestType->isVoidPointerType() ? |
2162 | diag::warn_int_to_void_pointer_cast |
2163 | : diag::warn_int_to_pointer_cast; |
2164 | Self.Diag(OpRange.getBegin(), Diag) << SrcType << DestType << OpRange; |
2165 | } |
2166 | } |
2167 | |
2168 | static bool fixOverloadedReinterpretCastExpr(Sema &Self, QualType DestType, |
2169 | ExprResult &Result) { |
2170 | |
2171 | |
2172 | |
2173 | |
2174 | |
2175 | |
2176 | Expr *E = Result.get(); |
2177 | |
2178 | |
2179 | if (Self.ResolveAndFixSingleFunctionTemplateSpecialization( |
2180 | Result, |
2181 | Expr::getValueKindForType(DestType) == |
2182 | VK_PRValue |
2183 | ) && |
2184 | Result.isUsable()) |
2185 | return true; |
2186 | |
2187 | |
2188 | |
2189 | Result = E; |
2190 | if (!Self.resolveAndFixAddressOfSingleOverloadCandidate( |
2191 | Result, true)) |
2192 | return false; |
2193 | return Result.isUsable(); |
2194 | } |
2195 | |
2196 | static TryCastResult TryReinterpretCast(Sema &Self, ExprResult &SrcExpr, |
2197 | QualType DestType, bool CStyle, |
2198 | SourceRange OpRange, |
2199 | unsigned &msg, |
2200 | CastKind &Kind) { |
2201 | bool IsLValueCast = false; |
2202 | |
2203 | DestType = Self.Context.getCanonicalType(DestType); |
2204 | QualType SrcType = SrcExpr.get()->getType(); |
2205 | |
2206 | |
2207 | |
2208 | if (SrcType == Self.Context.OverloadTy) { |
2209 | ExprResult FixedExpr = SrcExpr; |
2210 | if (!fixOverloadedReinterpretCastExpr(Self, DestType, FixedExpr)) |
2211 | return TC_NotApplicable; |
2212 | |
2213 | assert(FixedExpr.isUsable() && "Invalid result fixing overloaded expr"); |
2214 | SrcExpr = FixedExpr; |
2215 | SrcType = SrcExpr.get()->getType(); |
2216 | } |
2217 | |
2218 | if (const ReferenceType *DestTypeTmp = DestType->getAs<ReferenceType>()) { |
2219 | if (!SrcExpr.get()->isGLValue()) { |
2220 | |
2221 | |
2222 | msg = diag::err_bad_cxx_cast_rvalue; |
2223 | return TC_NotApplicable; |
2224 | } |
2225 | |
2226 | if (!CStyle) { |
2227 | Self.CheckCompatibleReinterpretCast(SrcType, DestType, |
2228 | false, OpRange); |
2229 | } |
2230 | |
2231 | |
2232 | |
2233 | |
2234 | |
2235 | const char *inappropriate = nullptr; |
2236 | switch (SrcExpr.get()->getObjectKind()) { |
2237 | case OK_Ordinary: |
2238 | break; |
2239 | case OK_BitField: |
2240 | msg = diag::err_bad_cxx_cast_bitfield; |
2241 | return TC_NotApplicable; |
2242 | |
2243 | case OK_VectorComponent: inappropriate = "vector element"; break; |
2244 | case OK_MatrixComponent: |
2245 | inappropriate = "matrix element"; |
2246 | break; |
2247 | case OK_ObjCProperty: inappropriate = "property expression"; break; |
2248 | case OK_ObjCSubscript: inappropriate = "container subscripting expression"; |
2249 | break; |
2250 | } |
2251 | if (inappropriate) { |
2252 | Self.Diag(OpRange.getBegin(), diag::err_bad_reinterpret_cast_reference) |
2253 | << inappropriate << DestType |
2254 | << OpRange << SrcExpr.get()->getSourceRange(); |
2255 | msg = 0; SrcExpr = ExprError(); |
2256 | return TC_NotApplicable; |
2257 | } |
2258 | |
2259 | |
2260 | DestType = Self.Context.getPointerType(DestTypeTmp->getPointeeType()); |
2261 | SrcType = Self.Context.getPointerType(SrcType); |
2262 | |
2263 | IsLValueCast = true; |
2264 | } |
2265 | |
2266 | |
2267 | SrcType = Self.Context.getCanonicalType(SrcType); |
2268 | |
2269 | const MemberPointerType *DestMemPtr = DestType->getAs<MemberPointerType>(), |
2270 | *SrcMemPtr = SrcType->getAs<MemberPointerType>(); |
2271 | if (DestMemPtr && SrcMemPtr) { |
2272 | |
2273 | |
2274 | |
2275 | |
2276 | if (DestMemPtr->isMemberFunctionPointer() != |
2277 | SrcMemPtr->isMemberFunctionPointer()) |
2278 | return TC_NotApplicable; |
2279 | |
2280 | if (Self.Context.getTargetInfo().getCXXABI().isMicrosoft()) { |
2281 | |
2282 | |
2283 | (void)Self.isCompleteType(OpRange.getBegin(), SrcType); |
2284 | (void)Self.isCompleteType(OpRange.getBegin(), DestType); |
2285 | } |
2286 | |
2287 | |
2288 | if (Self.Context.getTypeSize(DestMemPtr) != |
2289 | Self.Context.getTypeSize(SrcMemPtr)) { |
2290 | msg = diag::err_bad_cxx_cast_member_pointer_size; |
2291 | return TC_Failed; |
2292 | } |
2293 | |
2294 | |
2295 | |
2296 | |
2297 | |
2298 | if (auto CACK = |
2299 | CastsAwayConstness(Self, SrcType, DestType, !CStyle, |
2300 | CStyle)) |
2301 | return getCastAwayConstnessCastKind(CACK, msg); |
2302 | |
2303 | |
2304 | assert(!IsLValueCast); |
2305 | Kind = CK_ReinterpretMemberPointer; |
2306 | return TC_Success; |
2307 | } |
2308 | |
2309 | |
2310 | if (SrcType->isNullPtrType() && DestType->isIntegralType(Self.Context)) { |
2311 | |
2312 | |
2313 | |
2314 | |
2315 | if (Self.Context.getTypeSize(SrcType) > |
2316 | Self.Context.getTypeSize(DestType)) { |
2317 | msg = diag::err_bad_reinterpret_cast_small_int; |
2318 | return TC_Failed; |
2319 | } |
2320 | Kind = CK_PointerToIntegral; |
2321 | return TC_Success; |
2322 | } |
2323 | |
2324 | |
2325 | |
2326 | bool destIsVector = DestType->isVectorType(); |
2327 | bool srcIsVector = SrcType->isVectorType(); |
2328 | if (srcIsVector || destIsVector) { |
2329 | |
2330 | if (Self.isValidSveBitcast(SrcType, DestType)) { |
2331 | Kind = CK_BitCast; |
2332 | return TC_Success; |
2333 | } |
2334 | |
2335 | |
2336 | |
2337 | |
2338 | if ((!destIsVector && !DestType->isIntegralType(Self.Context)) || |
2339 | (!srcIsVector && !SrcType->isIntegralType(Self.Context))) |
2340 | return TC_NotApplicable; |
2341 | |
2342 | |
2343 | |
2344 | if (Self.areLaxCompatibleVectorTypes(SrcType, DestType)) { |
2345 | Kind = CK_BitCast; |
2346 | return TC_Success; |
2347 | } |
2348 | |
2349 | if (Self.LangOpts.OpenCL && !CStyle) { |
2350 | if (DestType->isExtVectorType() || SrcType->isExtVectorType()) { |
2351 | |
2352 | if (Self.areVectorTypesSameSize(SrcType, DestType)) { |
2353 | Kind = CK_BitCast; |
2354 | return TC_Success; |
2355 | } |
2356 | } |
2357 | } |
2358 | |
2359 | |
2360 | if (!destIsVector) |
2361 | msg = diag::err_bad_cxx_cast_vector_to_scalar_different_size; |
2362 | else if (!srcIsVector) |
2363 | msg = diag::err_bad_cxx_cast_scalar_to_vector_different_size; |
2364 | else |
2365 | msg = diag::err_bad_cxx_cast_vector_to_vector_different_size; |
2366 | |
2367 | return TC_Failed; |
2368 | } |
2369 | |
2370 | if (SrcType == DestType) { |
2371 | |
2372 | |
2373 | |
2374 | |
2375 | |
2376 | |
2377 | |
2378 | |
2379 | Kind = CK_NoOp; |
2380 | TryCastResult Result = TC_NotApplicable; |
2381 | if (SrcType->isIntegralOrEnumerationType() || |
2382 | SrcType->isAnyPointerType() || |
2383 | SrcType->isMemberPointerType() || |
2384 | SrcType->isBlockPointerType()) { |
2385 | Result = TC_Success; |
2386 | } |
2387 | return Result; |
2388 | } |
2389 | |
2390 | bool destIsPtr = DestType->isAnyPointerType() || |
2391 | DestType->isBlockPointerType(); |
2392 | bool srcIsPtr = SrcType->isAnyPointerType() || |
2393 | SrcType->isBlockPointerType(); |
2394 | if (!destIsPtr && !srcIsPtr) { |
2395 | |
2396 | |
2397 | return TC_NotApplicable; |
2398 | } |
2399 | |
2400 | if (DestType->isIntegralType(Self.Context)) { |
2401 | assert(srcIsPtr && "One type must be a pointer"); |
2402 | |
2403 | |
2404 | |
2405 | if ((Self.Context.getTypeSize(SrcType) > |
2406 | Self.Context.getTypeSize(DestType))) { |
2407 | bool MicrosoftException = |
2408 | Self.getLangOpts().MicrosoftExt && !DestType->isBooleanType(); |
2409 | if (MicrosoftException) { |
2410 | unsigned Diag = SrcType->isVoidPointerType() |
2411 | ? diag::warn_void_pointer_to_int_cast |
2412 | : diag::warn_pointer_to_int_cast; |
2413 | Self.Diag(OpRange.getBegin(), Diag) << SrcType << DestType << OpRange; |
2414 | } else { |
2415 | msg = diag::err_bad_reinterpret_cast_small_int; |
2416 | return TC_Failed; |
2417 | } |
2418 | } |
2419 | Kind = CK_PointerToIntegral; |
2420 | return TC_Success; |
2421 | } |
2422 | |
2423 | if (SrcType->isIntegralOrEnumerationType()) { |
2424 | assert(destIsPtr && "One type must be a pointer"); |
2425 | checkIntToPointerCast(CStyle, OpRange, SrcExpr.get(), DestType, Self); |
2426 | |
2427 | |
2428 | |
2429 | |
2430 | Kind = CK_IntegralToPointer; |
2431 | return TC_Success; |
2432 | } |
2433 | |
2434 | if (!destIsPtr || !srcIsPtr) { |
2435 | |
2436 | |
2437 | return TC_NotApplicable; |
2438 | } |
2439 | |
2440 | |
2441 | if ((SrcType->isBlockPointerType() && DestType->isObjCObjectPointerType()) || |
2442 | (DestType->isBlockPointerType() && SrcType->isObjCObjectPointerType())) |
2443 | return TC_NotApplicable; |
2444 | |
2445 | |
2446 | |
2447 | TryCastResult SuccessResult = TC_Success; |
2448 | if (auto CACK = |
2449 | CastsAwayConstness(Self, SrcType, DestType, !CStyle, |
2450 | CStyle)) |
2451 | SuccessResult = getCastAwayConstnessCastKind(CACK, msg); |
2452 | |
2453 | if (IsAddressSpaceConversion(SrcType, DestType)) { |
2454 | Kind = CK_AddressSpaceConversion; |
2455 | assert(SrcType->isPointerType() && DestType->isPointerType()); |
2456 | if (!CStyle && |
2457 | !DestType->getPointeeType().getQualifiers().isAddressSpaceSupersetOf( |
2458 | SrcType->getPointeeType().getQualifiers())) { |
2459 | SuccessResult = TC_Failed; |
2460 | } |
2461 | } else if (IsLValueCast) { |
2462 | Kind = CK_LValueBitCast; |
2463 | } else if (DestType->isObjCObjectPointerType()) { |
2464 | Kind = Self.PrepareCastToObjCObjectPointer(SrcExpr); |
2465 | } else if (DestType->isBlockPointerType()) { |
2466 | if (!SrcType->isBlockPointerType()) { |
2467 | Kind = CK_AnyPointerToBlockPointerCast; |
2468 | } else { |
2469 | Kind = CK_BitCast; |
2470 | } |
2471 | } else { |
2472 | Kind = CK_BitCast; |
2473 | } |
2474 | |
2475 | |
2476 | |
2477 | if (CStyle && DestType->isObjCObjectPointerType()) { |
2478 | return SuccessResult; |
2479 | } |
2480 | if (CStyle) |
2481 | DiagnoseCastOfObjCSEL(Self, SrcExpr, DestType); |
2482 | |
2483 | DiagnoseCallingConvCast(Self, SrcExpr, DestType, OpRange); |
2484 | |
2485 | |
2486 | |
2487 | |
2488 | if (SrcType->isFunctionPointerType()) { |
2489 | if (DestType->isFunctionPointerType()) { |
2490 | |
2491 | |
2492 | return SuccessResult; |
2493 | } |
2494 | |
2495 | |
2496 | |
2497 | |
2498 | |
2499 | |
2500 | |
2501 | Self.Diag(OpRange.getBegin(), |
2502 | Self.getLangOpts().CPlusPlus11 ? |
2503 | diag::warn_cxx98_compat_cast_fn_obj : diag::ext_cast_fn_obj) |
2504 | << OpRange; |
2505 | return SuccessResult; |
2506 | } |
2507 | |
2508 | if (DestType->isFunctionPointerType()) { |
2509 | |
2510 | Self.Diag(OpRange.getBegin(), |
2511 | Self.getLangOpts().CPlusPlus11 ? |
2512 | diag::warn_cxx98_compat_cast_fn_obj : diag::ext_cast_fn_obj) |
2513 | << OpRange; |
2514 | return SuccessResult; |
2515 | } |
2516 | |
2517 | |
2518 | QualType DestPtee = DestType->getPointeeType().isNull() |
2519 | ? DestType->getPointeeType() |
2520 | : DestType->getPointeeType()->getPointeeType(); |
2521 | QualType SrcPtee = SrcType->getPointeeType().isNull() |
2522 | ? SrcType->getPointeeType() |
2523 | : SrcType->getPointeeType()->getPointeeType(); |
2524 | while (!DestPtee.isNull() && !SrcPtee.isNull()) { |
2525 | if (DestPtee.getAddressSpace() != SrcPtee.getAddressSpace()) { |
2526 | Self.Diag(OpRange.getBegin(), |
2527 | diag::warn_bad_cxx_cast_nested_pointer_addr_space) |
2528 | << CStyle << SrcType << DestType << SrcExpr.get()->getSourceRange(); |
2529 | break; |
2530 | } |
2531 | DestPtee = DestPtee->getPointeeType(); |
2532 | SrcPtee = SrcPtee->getPointeeType(); |
2533 | } |
2534 | |
2535 | |
2536 | |
2537 | |
2538 | |
2539 | |
2540 | return SuccessResult; |
2541 | } |
2542 | |
2543 | static TryCastResult TryAddressSpaceCast(Sema &Self, ExprResult &SrcExpr, |
2544 | QualType DestType, bool CStyle, |
2545 | unsigned &msg, CastKind &Kind) { |
2546 | if (!Self.getLangOpts().OpenCL) |
2547 | |
2548 | |
2549 | return TC_NotApplicable; |
2550 | |
2551 | |
2552 | |
2553 | auto SrcType = SrcExpr.get()->getType(); |
2554 | |
2555 | |
2556 | |
2557 | auto SrcPtrType = SrcType->getAs<PointerType>(); |
2558 | if (!SrcPtrType) |
2559 | return TC_NotApplicable; |
2560 | auto DestPtrType = DestType->getAs<PointerType>(); |
2561 | if (!DestPtrType) |
2562 | return TC_NotApplicable; |
2563 | auto SrcPointeeType = SrcPtrType->getPointeeType(); |
2564 | auto DestPointeeType = DestPtrType->getPointeeType(); |
2565 | if (!DestPointeeType.isAddressSpaceOverlapping(SrcPointeeType)) { |
2566 | msg = diag::err_bad_cxx_cast_addr_space_mismatch; |
2567 | return TC_Failed; |
2568 | } |
2569 | auto SrcPointeeTypeWithoutAS = |
2570 | Self.Context.removeAddrSpaceQualType(SrcPointeeType.getCanonicalType()); |
2571 | auto DestPointeeTypeWithoutAS = |
2572 | Self.Context.removeAddrSpaceQualType(DestPointeeType.getCanonicalType()); |
2573 | if (Self.Context.hasSameType(SrcPointeeTypeWithoutAS, |
2574 | DestPointeeTypeWithoutAS)) { |
2575 | Kind = SrcPointeeType.getAddressSpace() == DestPointeeType.getAddressSpace() |
2576 | ? CK_NoOp |
2577 | : CK_AddressSpaceConversion; |
2578 | return TC_Success; |
2579 | } else { |
2580 | return TC_NotApplicable; |
2581 | } |
2582 | } |
2583 | |
2584 | void CastOperation::checkAddressSpaceCast(QualType SrcType, QualType DestType) { |
2585 | |
2586 | |
2587 | |
2588 | |
2589 | |
2590 | |
2591 | |
2592 | |
2593 | |
2594 | |
2595 | |
2596 | if (Self.getLangOpts().OpenCL) { |
2597 | const Type *DestPtr, *SrcPtr; |
2598 | bool Nested = false; |
2599 | unsigned DiagID = diag::err_typecheck_incompatible_address_space; |
2600 | DestPtr = Self.getASTContext().getCanonicalType(DestType.getTypePtr()), |
2601 | SrcPtr = Self.getASTContext().getCanonicalType(SrcType.getTypePtr()); |
2602 | |
2603 | while (isa<PointerType>(DestPtr) && isa<PointerType>(SrcPtr)) { |
2604 | const PointerType *DestPPtr = cast<PointerType>(DestPtr); |
2605 | const PointerType *SrcPPtr = cast<PointerType>(SrcPtr); |
2606 | QualType DestPPointee = DestPPtr->getPointeeType(); |
2607 | QualType SrcPPointee = SrcPPtr->getPointeeType(); |
2608 | if (Nested |
2609 | ? DestPPointee.getAddressSpace() != SrcPPointee.getAddressSpace() |
2610 | : !DestPPointee.isAddressSpaceOverlapping(SrcPPointee)) { |
2611 | Self.Diag(OpRange.getBegin(), DiagID) |
2612 | << SrcType << DestType << Sema::AA_Casting |
2613 | << SrcExpr.get()->getSourceRange(); |
2614 | if (!Nested) |
2615 | SrcExpr = ExprError(); |
2616 | return; |
2617 | } |
2618 | |
2619 | DestPtr = DestPPtr->getPointeeType().getTypePtr(); |
2620 | SrcPtr = SrcPPtr->getPointeeType().getTypePtr(); |
2621 | Nested = true; |
2622 | DiagID = diag::ext_nested_pointer_qualifier_mismatch; |
2623 | } |
2624 | } |
2625 | } |
2626 | |
2627 | bool Sema::ShouldSplatAltivecScalarInCast(const VectorType *VecTy) { |
2628 | bool SrcCompatXL = this->getLangOpts().getAltivecSrcCompat() == |
2629 | LangOptions::AltivecSrcCompatKind::XL; |
2630 | VectorType::VectorKind VKind = VecTy->getVectorKind(); |
2631 | |
2632 | if ((VKind == VectorType::AltiVecVector) || |
2633 | (SrcCompatXL && ((VKind == VectorType::AltiVecBool) || |
2634 | (VKind == VectorType::AltiVecPixel)))) { |
2635 | return true; |
2636 | } |
2637 | return false; |
2638 | } |
2639 | |
2640 | void CastOperation::CheckCXXCStyleCast(bool FunctionalStyle, |
2641 | bool ListInitialization) { |
2642 | assert(Self.getLangOpts().CPlusPlus); |
2643 | |
2644 | |
2645 | if (isPlaceholder()) { |
2646 | |
2647 | if (claimPlaceholder(BuiltinType::UnknownAny)) { |
2648 | SrcExpr = Self.checkUnknownAnyCast(DestRange, DestType, |
2649 | SrcExpr.get(), Kind, |
2650 | ValueKind, BasePath); |
2651 | return; |
2652 | } |
2653 | |
2654 | checkNonOverloadPlaceholders(); |
2655 | if (SrcExpr.isInvalid()) |
2656 | return; |
2657 | } |
2658 | |
2659 | |
2660 | |
2661 | |
2662 | if (DestType->isVoidType()) { |
2663 | Kind = CK_ToVoid; |
2664 | |
2665 | if (claimPlaceholder(BuiltinType::Overload)) { |
2666 | Self.ResolveAndFixSingleFunctionTemplateSpecialization( |
2667 | SrcExpr, false, |
2668 | true, DestRange, DestType, |
2669 | diag::err_bad_cstyle_cast_overload); |
2670 | if (SrcExpr.isInvalid()) |
2671 | return; |
2672 | } |
2673 | |
2674 | SrcExpr = Self.IgnoredValueConversions(SrcExpr.get()); |
2675 | return; |
2676 | } |
2677 | |
2678 | |
2679 | if (DestType->isDependentType() || SrcExpr.get()->isTypeDependent() || |
2680 | SrcExpr.get()->isValueDependent()) { |
2681 | assert(Kind == CK_Dependent); |
2682 | return; |
2683 | } |
2684 | |
2685 | if (ValueKind == VK_PRValue && !DestType->isRecordType() && |
2686 | !isPlaceholder(BuiltinType::Overload)) { |
2687 | SrcExpr = Self.DefaultFunctionArrayLvalueConversion(SrcExpr.get()); |
2688 | if (SrcExpr.isInvalid()) |
2689 | return; |
2690 | } |
2691 | |
2692 | |
2693 | if (const VectorType *vecTy = DestType->getAs<VectorType>()) |
2694 | if (Self.ShouldSplatAltivecScalarInCast(vecTy) && |
2695 | (SrcExpr.get()->getType()->isIntegerType() || |
2696 | SrcExpr.get()->getType()->isFloatingType())) { |
2697 | Kind = CK_VectorSplat; |
2698 | SrcExpr = Self.prepareVectorSplat(DestType, SrcExpr.get()); |
2699 | return; |
2700 | } |
2701 | |
2702 | |
2703 | |
2704 | |
2705 | |
2706 | |
2707 | |
2708 | |
2709 | |
2710 | |
2711 | |
2712 | |
2713 | |
2714 | unsigned msg = diag::err_bad_cxx_cast_generic; |
2715 | TryCastResult tcr = TryConstCast(Self, SrcExpr, DestType, |
2716 | true, msg); |
2717 | if (SrcExpr.isInvalid()) |
2718 | return; |
2719 | if (isValidCast(tcr)) |
2720 | Kind = CK_NoOp; |
2721 | |
2722 | Sema::CheckedConversionKind CCK = |
2723 | FunctionalStyle ? Sema::CCK_FunctionalCast : Sema::CCK_CStyleCast; |
2724 | if (tcr == TC_NotApplicable) { |
2725 | tcr = TryAddressSpaceCast(Self, SrcExpr, DestType, true, msg, |
2726 | Kind); |
2727 | if (SrcExpr.isInvalid()) |
2728 | return; |
2729 | |
2730 | if (tcr == TC_NotApplicable) { |
2731 | |
2732 | |
2733 | tcr = TryStaticCast(Self, SrcExpr, DestType, CCK, OpRange, msg, Kind, |
2734 | BasePath, ListInitialization); |
2735 | if (SrcExpr.isInvalid()) |
2736 | return; |
2737 | |
2738 | if (tcr == TC_NotApplicable) { |
2739 | |
2740 | tcr = TryReinterpretCast(Self, SrcExpr, DestType, true, |
2741 | OpRange, msg, Kind); |
2742 | if (SrcExpr.isInvalid()) |
2743 | return; |
2744 | } |
2745 | } |
2746 | } |
2747 | |
2748 | if (Self.getLangOpts().allowsNonTrivialObjCLifetimeQualifiers() && |
2749 | isValidCast(tcr)) |
2750 | checkObjCConversion(CCK); |
2751 | |
2752 | if (tcr != TC_Success && msg != 0) { |
2753 | if (SrcExpr.get()->getType() == Self.Context.OverloadTy) { |
2754 | DeclAccessPair Found; |
2755 | FunctionDecl *Fn = Self.ResolveAddressOfOverloadedFunction(SrcExpr.get(), |
2756 | DestType, |
2757 | true, |
2758 | Found); |
2759 | if (Fn) { |
2760 | |
2761 | |
2762 | |
2763 | OverloadExpr *OE = OverloadExpr::find(SrcExpr.get()).Expression; |
2764 | Self.Diag(OpRange.getBegin(), diag::err_bad_cstyle_cast_overload) |
2765 | << OE->getName() << DestType << OpRange |
2766 | << OE->getQualifierLoc().getSourceRange(); |
2767 | Self.NoteAllOverloadCandidates(SrcExpr.get()); |
2768 | } |
2769 | } else { |
2770 | diagnoseBadCast(Self, msg, (FunctionalStyle ? CT_Functional : CT_CStyle), |
2771 | OpRange, SrcExpr.get(), DestType, ListInitialization); |
2772 | } |
2773 | } |
2774 | |
2775 | if (isValidCast(tcr)) { |
2776 | if (Kind == CK_BitCast) |
2777 | checkCastAlign(); |
2778 | |
2779 | if (!checkCastFunctionType(Self, SrcExpr, DestType)) |
2780 | Self.Diag(OpRange.getBegin(), diag::warn_cast_function_type) |
2781 | << SrcExpr.get()->getType() << DestType << OpRange; |
2782 | |
2783 | } else { |
2784 | SrcExpr = ExprError(); |
2785 | } |
2786 | } |
2787 | |
2788 | |
2789 | |
2790 | |
2791 | static void DiagnoseBadFunctionCast(Sema &Self, const ExprResult &SrcExpr, |
2792 | QualType DestType) { |
2793 | if (Self.Diags.isIgnored(diag::warn_bad_function_cast, |
2794 | SrcExpr.get()->getExprLoc())) |
2795 | return; |
2796 | |
2797 | if (!isa<CallExpr>(SrcExpr.get())) |
2798 | return; |
2799 | |
2800 | QualType SrcType = SrcExpr.get()->getType(); |
2801 | if (DestType.getUnqualifiedType()->isVoidType()) |
2802 | return; |
2803 | if ((SrcType->isAnyPointerType() || SrcType->isBlockPointerType()) |
2804 | && (DestType->isAnyPointerType() || DestType->isBlockPointerType())) |
2805 | return; |
2806 | if (SrcType->isIntegerType() && DestType->isIntegerType() && |
2807 | (SrcType->isBooleanType() == DestType->isBooleanType()) && |
2808 | (SrcType->isEnumeralType() == DestType->isEnumeralType())) |
2809 | return; |
2810 | if (SrcType->isRealFloatingType() && DestType->isRealFloatingType()) |
2811 | return; |
2812 | if (SrcType->isEnumeralType() && DestType->isEnumeralType()) |
2813 | return; |
2814 | if (SrcType->isComplexType() && DestType->isComplexType()) |
2815 | return; |
2816 | if (SrcType->isComplexIntegerType() && DestType->isComplexIntegerType()) |
2817 | return; |
2818 | if (SrcType->isFixedPointType() && DestType->isFixedPointType()) |
2819 | return; |
2820 | |
2821 | Self.Diag(SrcExpr.get()->getExprLoc(), |
2822 | diag::warn_bad_function_cast) |
2823 | << SrcType << DestType << SrcExpr.get()->getSourceRange(); |
2824 | } |
2825 | |
2826 | |
2827 | void CastOperation::CheckCStyleCast() { |
2828 | assert(!Self.getLangOpts().CPlusPlus); |
2829 | |
2830 | |
2831 | if (claimPlaceholder(BuiltinType::UnknownAny)) { |
2832 | SrcExpr = Self.checkUnknownAnyCast(DestRange, DestType, |
2833 | SrcExpr.get(), Kind, |
2834 | ValueKind, BasePath); |
2835 | return; |
2836 | } |
2837 | |
2838 | |
2839 | |
2840 | if (DestType->isVoidType()) { |
2841 | |
2842 | SrcExpr = Self.IgnoredValueConversions(SrcExpr.get()); |
2843 | if (SrcExpr.isInvalid()) |
2844 | return; |
2845 | |
2846 | |
2847 | Kind = CK_ToVoid; |
2848 | return; |
2849 | } |
2850 | |
2851 | |
2852 | if (Self.getASTContext().isDependenceAllowed() && |
2853 | (DestType->isDependentType() || SrcExpr.get()->isTypeDependent() || |
2854 | SrcExpr.get()->isValueDependent())) { |
2855 | assert((DestType->containsErrors() || SrcExpr.get()->containsErrors() || |
2856 | SrcExpr.get()->containsErrors()) && |
2857 | "should only occur in error-recovery path."); |
2858 | assert(Kind == CK_Dependent); |
2859 | return; |
2860 | } |
2861 | |
2862 | |
2863 | if (SrcExpr.get()->getType() == Self.Context.OverloadTy) { |
2864 | DeclAccessPair DAP; |
2865 | if (FunctionDecl *FD = Self.ResolveAddressOfOverloadedFunction( |
2866 | SrcExpr.get(), DestType, true, DAP)) |
2867 | SrcExpr = Self.FixOverloadedFunctionReference(SrcExpr.get(), DAP, FD); |
2868 | else |
2869 | return; |
2870 | assert(SrcExpr.isUsable()); |
2871 | } |
2872 | SrcExpr = Self.DefaultFunctionArrayLvalueConversion(SrcExpr.get()); |
2873 | if (SrcExpr.isInvalid()) |
2874 | return; |
2875 | QualType SrcType = SrcExpr.get()->getType(); |
2876 | |
2877 | assert(!SrcType->isPlaceholderType()); |
2878 | |
2879 | checkAddressSpaceCast(SrcType, DestType); |
2880 | if (SrcExpr.isInvalid()) |
2881 | return; |
2882 | |
2883 | if (Self.RequireCompleteType(OpRange.getBegin(), DestType, |
2884 | diag::err_typecheck_cast_to_incomplete)) { |
2885 | SrcExpr = ExprError(); |
2886 | return; |
2887 | } |
2888 | |
2889 | |
2890 | if (DestType->isSizelessBuiltinType() && |
2891 | Self.Context.hasSameUnqualifiedType(DestType, SrcType)) { |
2892 | Kind = CK_NoOp; |
2893 | return; |
2894 | } |
2895 | |
2896 | |
2897 | if ((SrcType->isVectorType() || DestType->isVectorType()) && |
2898 | Self.isValidSveBitcast(SrcType, DestType)) { |
2899 | Kind = CK_BitCast; |
2900 | return; |
2901 | } |
2902 | |
2903 | if (!DestType->isScalarType() && !DestType->isVectorType() && |
2904 | !DestType->isMatrixType()) { |
2905 | const RecordType *DestRecordTy = DestType->getAs<RecordType>(); |
2906 | |
2907 | if (DestRecordTy && Self.Context.hasSameUnqualifiedType(DestType, SrcType)){ |
2908 | |
2909 | Self.Diag(OpRange.getBegin(), diag::ext_typecheck_cast_nonscalar) |
2910 | << DestType << SrcExpr.get()->getSourceRange(); |
2911 | Kind = CK_NoOp; |
2912 | return; |
2913 | } |
2914 | |
2915 | |
2916 | if (DestRecordTy && DestRecordTy->getDecl()->isUnion()) { |
2917 | RecordDecl *RD = DestRecordTy->getDecl(); |
2918 | if (CastExpr::getTargetFieldForToUnionCast(RD, SrcType)) { |
2919 | Self.Diag(OpRange.getBegin(), diag::ext_typecheck_cast_to_union) |
2920 | << SrcExpr.get()->getSourceRange(); |
2921 | Kind = CK_ToUnion; |
2922 | return; |
2923 | } else { |
2924 | Self.Diag(OpRange.getBegin(), diag::err_typecheck_cast_to_union_no_type) |
2925 | << SrcType << SrcExpr.get()->getSourceRange(); |
2926 | SrcExpr = ExprError(); |
2927 | return; |
2928 | } |
2929 | } |
2930 | |
2931 | |
2932 | if (Self.getLangOpts().OpenCL && DestType->isEventT()) { |
2933 | Expr::EvalResult Result; |
2934 | if (SrcExpr.get()->EvaluateAsInt(Result, Self.Context)) { |
2935 | llvm::APSInt CastInt = Result.Val.getInt(); |
2936 | if (0 == CastInt) { |
2937 | Kind = CK_ZeroToOCLOpaqueType; |
2938 | return; |
2939 | } |
2940 | Self.Diag(OpRange.getBegin(), |
2941 | diag::err_opencl_cast_non_zero_to_event_t) |
2942 | << toString(CastInt, 10) << SrcExpr.get()->getSourceRange(); |
2943 | SrcExpr = ExprError(); |
2944 | return; |
2945 | } |
2946 | } |
2947 | |
2948 | |
2949 | Self.Diag(OpRange.getBegin(), diag::err_typecheck_cond_expect_scalar) |
2950 | << DestType << SrcExpr.get()->getSourceRange(); |
2951 | SrcExpr = ExprError(); |
2952 | return; |
2953 | } |
2954 | |
2955 | |
2956 | |
2957 | |
2958 | if (!SrcType->isScalarType() && !SrcType->isVectorType() && |
2959 | !SrcType->isMatrixType()) { |
2960 | Self.Diag(SrcExpr.get()->getExprLoc(), |
2961 | diag::err_typecheck_expect_scalar_operand) |
2962 | << SrcType << SrcExpr.get()->getSourceRange(); |
2963 | SrcExpr = ExprError(); |
2964 | return; |
2965 | } |
2966 | |
2967 | if (DestType->isExtVectorType()) { |
2968 | SrcExpr = Self.CheckExtVectorCast(OpRange, DestType, SrcExpr.get(), Kind); |
2969 | return; |
2970 | } |
2971 | |
2972 | if (DestType->getAs<MatrixType>() || SrcType->getAs<MatrixType>()) { |
2973 | if (Self.CheckMatrixCast(OpRange, DestType, SrcType, Kind)) |
2974 | SrcExpr = ExprError(); |
2975 | return; |
2976 | } |
2977 | |
2978 | if (const VectorType *DestVecTy = DestType->getAs<VectorType>()) { |
2979 | if (Self.ShouldSplatAltivecScalarInCast(DestVecTy) && |
2980 | (SrcType->isIntegerType() || SrcType->isFloatingType())) { |
2981 | Kind = CK_VectorSplat; |
2982 | SrcExpr = Self.prepareVectorSplat(DestType, SrcExpr.get()); |
2983 | } else if (Self.CheckVectorCast(OpRange, DestType, SrcType, Kind)) { |
2984 | SrcExpr = ExprError(); |
2985 | } |
2986 | return; |
2987 | } |
2988 | |
2989 | if (SrcType->isVectorType()) { |
2990 | if (Self.CheckVectorCast(OpRange, SrcType, DestType, Kind)) |
2991 | SrcExpr = ExprError(); |
2992 | return; |
2993 | } |
2994 | |
2995 | |
2996 | |
2997 | |
2998 | |
2999 | |
3000 | if (isa<ObjCSelectorExpr>(SrcExpr.get())) { |
3001 | Self.Diag(SrcExpr.get()->getExprLoc(), diag::err_cast_selector_expr); |
3002 | SrcExpr = ExprError(); |
3003 | return; |
3004 | } |
3005 | |
3006 | |
3007 | if (DestType->isBFloat16Type() && !SrcType->isBFloat16Type()) { |
3008 | Self.Diag(SrcExpr.get()->getExprLoc(), diag::err_cast_to_bfloat16) |
3009 | << SrcExpr.get()->getSourceRange(); |
3010 | SrcExpr = ExprError(); |
3011 | return; |
3012 | } |
3013 | if (SrcType->isBFloat16Type() && !DestType->isBFloat16Type()) { |
3014 | Self.Diag(SrcExpr.get()->getExprLoc(), diag::err_cast_from_bfloat16) |
3015 | << SrcExpr.get()->getSourceRange(); |
3016 | SrcExpr = ExprError(); |
3017 | return; |
3018 | } |
3019 | |
3020 | |
3021 | |
3022 | if (!DestType->isArithmeticType()) { |
3023 | if (!SrcType->isIntegralType(Self.Context) && SrcType->isArithmeticType()) { |
3024 | Self.Diag(SrcExpr.get()->getExprLoc(), |
3025 | diag::err_cast_pointer_from_non_pointer_int) |
3026 | << SrcType << SrcExpr.get()->getSourceRange(); |
3027 | SrcExpr = ExprError(); |
3028 | return; |
3029 | } |
3030 | checkIntToPointerCast( true, OpRange, SrcExpr.get(), DestType, |
3031 | Self); |
3032 | } else if (!SrcType->isArithmeticType()) { |
3033 | if (!DestType->isIntegralType(Self.Context) && |
3034 | DestType->isArithmeticType()) { |
3035 | Self.Diag(SrcExpr.get()->getBeginLoc(), |
3036 | diag::err_cast_pointer_to_non_pointer_int) |
3037 | << DestType << SrcExpr.get()->getSourceRange(); |
3038 | SrcExpr = ExprError(); |
3039 | return; |
3040 | } |
3041 | |
3042 | if ((Self.Context.getTypeSize(SrcType) > |
3043 | Self.Context.getTypeSize(DestType)) && |
3044 | !DestType->isBooleanType()) { |
3045 | |
3046 | |
3047 | |
3048 | |
3049 | |
3050 | unsigned Diag; |
3051 | if (SrcType->isVoidPointerType()) |
3052 | Diag = DestType->isEnumeralType() ? diag::warn_void_pointer_to_enum_cast |
3053 | : diag::warn_void_pointer_to_int_cast; |
3054 | else if (DestType->isEnumeralType()) |
3055 | Diag = diag::warn_pointer_to_enum_cast; |
3056 | else |
3057 | Diag = diag::warn_pointer_to_int_cast; |
3058 | Self.Diag(OpRange.getBegin(), Diag) << SrcType << DestType << OpRange; |
3059 | } |
3060 | } |
3061 | |
3062 | if (Self.getLangOpts().OpenCL && !Self.getOpenCLOptions().isAvailableOption( |
3063 | "cl_khr_fp16", Self.getLangOpts())) { |
3064 | if (DestType->isHalfType()) { |
3065 | Self.Diag(SrcExpr.get()->getBeginLoc(), diag::err_opencl_cast_to_half) |
3066 | << DestType << SrcExpr.get()->getSourceRange(); |
3067 | SrcExpr = ExprError(); |
3068 | return; |
3069 | } |
3070 | } |
3071 | |
3072 | |
3073 | if (Self.getLangOpts().allowsNonTrivialObjCLifetimeQualifiers()) { |
3074 | checkObjCConversion(Sema::CCK_CStyleCast); |
3075 | if (SrcExpr.isInvalid()) |
3076 | return; |
3077 | |
3078 | const PointerType *CastPtr = DestType->getAs<PointerType>(); |
3079 | if (Self.getLangOpts().ObjCAutoRefCount && CastPtr) { |
3080 | if (const PointerType *ExprPtr = SrcType->getAs<PointerType>()) { |
3081 | Qualifiers CastQuals = CastPtr->getPointeeType().getQualifiers(); |
3082 | Qualifiers ExprQuals = ExprPtr->getPointeeType().getQualifiers(); |
3083 | if (CastPtr->getPointeeType()->isObjCLifetimeType() && |
3084 | ExprPtr->getPointeeType()->isObjCLifetimeType() && |
3085 | !CastQuals.compatiblyIncludesObjCLifetime(ExprQuals)) { |
3086 | Self.Diag(SrcExpr.get()->getBeginLoc(), |
3087 | diag::err_typecheck_incompatible_ownership) |
3088 | << SrcType << DestType << Sema::AA_Casting |
3089 | << SrcExpr.get()->getSourceRange(); |
3090 | return; |
3091 | } |
3092 | } |
3093 | } |
3094 | else if (!Self.CheckObjCARCUnavailableWeakConversion(DestType, SrcType)) { |
3095 | Self.Diag(SrcExpr.get()->getBeginLoc(), |
3096 | diag::err_arc_convesion_of_weak_unavailable) |
3097 | << 1 << SrcType << DestType << SrcExpr.get()->getSourceRange(); |
3098 | SrcExpr = ExprError(); |
3099 | return; |
3100 | } |
3101 | } |
3102 | |
3103 | if (!checkCastFunctionType(Self, SrcExpr, DestType)) |
3104 | Self.Diag(OpRange.getBegin(), diag::warn_cast_function_type) |
3105 | << SrcType << DestType << OpRange; |
3106 | |
3107 | DiagnoseCastOfObjCSEL(Self, SrcExpr, DestType); |
3108 | DiagnoseCallingConvCast(Self, SrcExpr, DestType, OpRange); |
3109 | DiagnoseBadFunctionCast(Self, SrcExpr, DestType); |
3110 | Kind = Self.PrepareScalarCast(SrcExpr, DestType); |
3111 | if (SrcExpr.isInvalid()) |
3112 | return; |
3113 | |
3114 | if (Kind == CK_BitCast) |
3115 | checkCastAlign(); |
3116 | } |
3117 | |
3118 | void CastOperation::CheckBuiltinBitCast() { |
3119 | QualType SrcType = SrcExpr.get()->getType(); |
3120 | |
3121 | if (Self.RequireCompleteType(OpRange.getBegin(), DestType, |
3122 | diag::err_typecheck_cast_to_incomplete) || |
3123 | Self.RequireCompleteType(OpRange.getBegin(), SrcType, |
3124 | diag::err_incomplete_type)) { |
3125 | SrcExpr = ExprError(); |
3126 | return; |
3127 | } |
3128 | |
3129 | if (SrcExpr.get()->isPRValue()) |
3130 | SrcExpr = Self.CreateMaterializeTemporaryExpr(SrcType, SrcExpr.get(), |
3131 | false); |
3132 | |
3133 | CharUnits DestSize = Self.Context.getTypeSizeInChars(DestType); |
3134 | CharUnits SourceSize = Self.Context.getTypeSizeInChars(SrcType); |
3135 | if (DestSize != SourceSize) { |
3136 | Self.Diag(OpRange.getBegin(), diag::err_bit_cast_type_size_mismatch) |
3137 | << (int)SourceSize.getQuantity() << (int)DestSize.getQuantity(); |
3138 | SrcExpr = ExprError(); |
3139 | return; |
3140 | } |
3141 | |
3142 | if (!DestType.isTriviallyCopyableType(Self.Context)) { |
3143 | Self.Diag(OpRange.getBegin(), diag::err_bit_cast_non_trivially_copyable) |
3144 | << 1; |
3145 | SrcExpr = ExprError(); |
3146 | return; |
3147 | } |
3148 | |
3149 | if (!SrcType.isTriviallyCopyableType(Self.Context)) { |
3150 | Self.Diag(OpRange.getBegin(), diag::err_bit_cast_non_trivially_copyable) |
3151 | << 0; |
3152 | SrcExpr = ExprError(); |
3153 | return; |
3154 | } |
3155 | |
3156 | Kind = CK_LValueToRValueBitCast; |
3157 | } |
3158 | |
3159 | |
3160 | |
3161 | static void DiagnoseCastQual(Sema &Self, const ExprResult &SrcExpr, |
3162 | QualType DestType) { |
3163 | if (SrcExpr.isInvalid()) |
3164 | return; |
3165 | |
3166 | QualType SrcType = SrcExpr.get()->getType(); |
3167 | if (!((SrcType->isAnyPointerType() && DestType->isAnyPointerType()) || |
3168 | DestType->isLValueReferenceType())) |
3169 | return; |
3170 | |
3171 | QualType TheOffendingSrcType, TheOffendingDestType; |
3172 | Qualifiers CastAwayQualifiers; |
3173 | if (CastsAwayConstness(Self, SrcType, DestType, true, false, |
3174 | &TheOffendingSrcType, &TheOffendingDestType, |
3175 | &CastAwayQualifiers) != |
3176 | CastAwayConstnessKind::CACK_Similar) |
3177 | return; |
3178 | |
3179 | |
3180 | int qualifiers = -1; |
3181 | if (CastAwayQualifiers.hasConst() && CastAwayQualifiers.hasVolatile()) { |
3182 | qualifiers = 0; |
3183 | } else if (CastAwayQualifiers.hasConst()) { |
3184 | qualifiers = 1; |
3185 | } else if (CastAwayQualifiers.hasVolatile()) { |
3186 | qualifiers = 2; |
3187 | } |
3188 | |
3189 | if (qualifiers == -1) |
3190 | Self.Diag(SrcExpr.get()->getBeginLoc(), diag::warn_cast_qual2) |
3191 | << SrcType << DestType; |
3192 | else |
3193 | Self.Diag(SrcExpr.get()->getBeginLoc(), diag::warn_cast_qual) |
3194 | << TheOffendingSrcType << TheOffendingDestType << qualifiers; |
3195 | } |
3196 | |
3197 | ExprResult Sema::BuildCStyleCastExpr(SourceLocation LPLoc, |
3198 | TypeSourceInfo *CastTypeInfo, |
3199 | SourceLocation RPLoc, |
3200 | Expr *CastExpr) { |
3201 | CastOperation Op(*this, CastTypeInfo->getType(), CastExpr); |
3202 | Op.DestRange = CastTypeInfo->getTypeLoc().getSourceRange(); |
3203 | Op.OpRange = SourceRange(LPLoc, CastExpr->getEndLoc()); |
3204 | |
3205 | if (getLangOpts().CPlusPlus) { |
3206 | Op.CheckCXXCStyleCast( false, |
3207 | isa<InitListExpr>(CastExpr)); |
3208 | } else { |
3209 | Op.CheckCStyleCast(); |
3210 | } |
3211 | |
3212 | if (Op.SrcExpr.isInvalid()) |
3213 | return ExprError(); |
3214 | |
3215 | |
3216 | DiagnoseCastQual(Op.Self, Op.SrcExpr, Op.DestType); |
3217 | |
3218 | return Op.complete(CStyleCastExpr::Create( |
3219 | Context, Op.ResultType, Op.ValueKind, Op.Kind, Op.SrcExpr.get(), |
3220 | &Op.BasePath, CurFPFeatureOverrides(), CastTypeInfo, LPLoc, RPLoc)); |
3221 | } |
3222 | |
3223 | ExprResult Sema::BuildCXXFunctionalCastExpr(TypeSourceInfo *CastTypeInfo, |
3224 | QualType Type, |
3225 | SourceLocation LPLoc, |
3226 | Expr *CastExpr, |
3227 | SourceLocation RPLoc) { |
3228 | assert(LPLoc.isValid() && "List-initialization shouldn't get here."); |
3229 | CastOperation Op(*this, Type, CastExpr); |
3230 | Op.DestRange = CastTypeInfo->getTypeLoc().getSourceRange(); |
3231 | Op.OpRange = SourceRange(Op.DestRange.getBegin(), CastExpr->getEndLoc()); |
3232 | |
3233 | Op.CheckCXXCStyleCast(true, false); |
3234 | if (Op.SrcExpr.isInvalid()) |
3235 | return ExprError(); |
3236 | |
3237 | auto *SubExpr = Op.SrcExpr.get(); |
3238 | if (auto *BindExpr = dyn_cast<CXXBindTemporaryExpr>(SubExpr)) |
3239 | SubExpr = BindExpr->getSubExpr(); |
3240 | if (auto *ConstructExpr = dyn_cast<CXXConstructExpr>(SubExpr)) |
3241 | ConstructExpr->setParenOrBraceRange(SourceRange(LPLoc, RPLoc)); |
3242 | |
3243 | return Op.complete(CXXFunctionalCastExpr::Create( |
3244 | Context, Op.ResultType, Op.ValueKind, CastTypeInfo, Op.Kind, |
3245 | Op.SrcExpr.get(), &Op.BasePath, CurFPFeatureOverrides(), LPLoc, RPLoc)); |
3246 | } |
1 | |
2 | |
3 | |
4 | |
5 | |
6 | |
7 | |
8 | |
9 | |
10 | |
11 | |
12 | |
13 | |
14 | |
15 | |
16 | |
17 | #ifndef LLVM_CLANG_AST_TYPE_H |
18 | #define LLVM_CLANG_AST_TYPE_H |
19 | |
20 | #include "clang/AST/DependenceFlags.h" |
21 | #include "clang/AST/NestedNameSpecifier.h" |
22 | #include "clang/AST/TemplateName.h" |
23 | #include "clang/Basic/AddressSpaces.h" |
24 | #include "clang/Basic/AttrKinds.h" |
25 | #include "clang/Basic/Diagnostic.h" |
26 | #include "clang/Basic/ExceptionSpecificationType.h" |
27 | #include "clang/Basic/LLVM.h" |
28 | #include "clang/Basic/Linkage.h" |
29 | #include "clang/Basic/PartialDiagnostic.h" |
30 | #include "clang/Basic/SourceLocation.h" |
31 | #include "clang/Basic/Specifiers.h" |
32 | #include "clang/Basic/Visibility.h" |
33 | #include "llvm/ADT/APInt.h" |
34 | #include "llvm/ADT/APSInt.h" |
35 | #include "llvm/ADT/ArrayRef.h" |
36 | #include "llvm/ADT/FoldingSet.h" |
37 | #include "llvm/ADT/None.h" |
38 | #include "llvm/ADT/Optional.h" |
39 | #include "llvm/ADT/PointerIntPair.h" |
40 | #include "llvm/ADT/PointerUnion.h" |
41 | #include "llvm/ADT/StringRef.h" |
42 | #include "llvm/ADT/Twine.h" |
43 | #include "llvm/ADT/iterator_range.h" |
44 | #include "llvm/Support/Casting.h" |
45 | #include "llvm/Support/Compiler.h" |
46 | #include "llvm/Support/ErrorHandling.h" |
47 | #include "llvm/Support/PointerLikeTypeTraits.h" |
48 | #include "llvm/Support/TrailingObjects.h" |
49 | #include "llvm/Support/type_traits.h" |
50 | #include <cassert> |
51 | #include <cstddef> |
52 | #include <cstdint> |
53 | #include <cstring> |
54 | #include <string> |
55 | #include <type_traits> |
56 | #include <utility> |
57 | |
58 | namespace clang { |
59 | |
60 | class ExtQuals; |
61 | class QualType; |
62 | class ConceptDecl; |
63 | class TagDecl; |
64 | class TemplateParameterList; |
65 | class Type; |
66 | |
67 | enum { |
68 | TypeAlignmentInBits = 4, |
69 | TypeAlignment = 1 << TypeAlignmentInBits |
70 | }; |
71 | |
72 | namespace serialization { |
73 | template <class T> class AbstractTypeReader; |
74 | template <class T> class AbstractTypeWriter; |
75 | } |
76 | |
77 | } |
78 | |
79 | namespace llvm { |
80 | |
81 | template <typename T> |
82 | struct PointerLikeTypeTraits; |
83 | template<> |
84 | struct PointerLikeTypeTraits< ::clang::Type*> { |
85 | static inline void *getAsVoidPointer(::clang::Type *P) { return P; } |
86 | |
87 | static inline ::clang::Type *getFromVoidPointer(void *P) { |
88 | return static_cast< ::clang::Type*>(P); |
89 | } |
90 | |
91 | static constexpr int NumLowBitsAvailable = clang::TypeAlignmentInBits; |
92 | }; |
93 | |
94 | template<> |
95 | struct PointerLikeTypeTraits< ::clang::ExtQuals*> { |
96 | static inline void *getAsVoidPointer(::clang::ExtQuals *P) { return P; } |
97 | |
98 | static inline ::clang::ExtQuals *getFromVoidPointer(void *P) { |
99 | return static_cast< ::clang::ExtQuals*>(P); |
100 | } |
101 | |
102 | static constexpr int NumLowBitsAvailable = clang::TypeAlignmentInBits; |
103 | }; |
104 | |
105 | } |
106 | |
107 | namespace clang { |
108 | |
109 | class ASTContext; |
110 | template <typename> class CanQual; |
111 | class CXXRecordDecl; |
112 | class DeclContext; |
113 | class EnumDecl; |
114 | class Expr; |
115 | class ExtQualsTypeCommonBase; |
116 | class FunctionDecl; |
117 | class IdentifierInfo; |
118 | class NamedDecl; |
119 | class ObjCInterfaceDecl; |
120 | class ObjCProtocolDecl; |
121 | class ObjCTypeParamDecl; |
122 | struct PrintingPolicy; |
123 | class RecordDecl; |
124 | class Stmt; |
125 | class TagDecl; |
126 | class TemplateArgument; |
127 | class TemplateArgumentListInfo; |
128 | class TemplateArgumentLoc; |
129 | class TemplateTypeParmDecl; |
130 | class TypedefNameDecl; |
131 | class UnresolvedUsingTypenameDecl; |
132 | |
133 | using CanQualType = CanQual<Type>; |
134 | |
135 | |
136 | #define TYPE(Class, Base) class Class##Type; |
137 | #include "clang/AST/TypeNodes.inc" |
138 | |
139 | |
140 | |
141 | |
142 | |
143 | |
144 | |
145 | class Qualifiers { |
146 | public: |
147 | enum TQ { |
148 | Const = 0x1, |
149 | Restrict = 0x2, |
150 | Volatile = 0x4, |
151 | CVRMask = Const | Volatile | Restrict |
152 | }; |
153 | |
154 | enum GC { |
155 | GCNone = 0, |
156 | Weak, |
157 | Strong |
158 | }; |
159 | |
160 | enum ObjCLifetime { |
161 | |
162 | OCL_None, |
163 | |
164 | |
165 | |
166 | OCL_ExplicitNone, |
167 | |
168 | |
169 | |
170 | |
171 | |
172 | |
173 | OCL_Strong, |
174 | |
175 | |
176 | OCL_Weak, |
177 | |
178 | |
179 | OCL_Autoreleasing |
180 | }; |
181 | |
182 | enum { |
183 | |
184 | |
185 | MaxAddressSpace = 0x7fffffu, |
186 | |
187 | |
188 | FastWidth = 3, |
189 | |
190 | |
191 | FastMask = (1 << FastWidth) - 1 |
192 | }; |
193 | |
194 | |
195 | |
196 | static Qualifiers removeCommonQualifiers(Qualifiers &L, Qualifiers &R) { |
197 | |
198 | if (!(L.Mask & ~CVRMask) && !(R.Mask & ~CVRMask)) { |
199 | Qualifiers Q; |
200 | Q.Mask = L.Mask & R.Mask; |
201 | L.Mask &= ~Q.Mask; |
202 | R.Mask &= ~Q.Mask; |
203 | return Q; |
204 | } |
205 | |
206 | Qualifiers Q; |
207 | unsigned CommonCRV = L.getCVRQualifiers() & R.getCVRQualifiers(); |
208 | Q.addCVRQualifiers(CommonCRV); |
209 | L.removeCVRQualifiers(CommonCRV); |
210 | R.removeCVRQualifiers(CommonCRV); |
211 | |
212 | if (L.getObjCGCAttr() == R.getObjCGCAttr()) { |
213 | Q.setObjCGCAttr(L.getObjCGCAttr()); |
214 | L.removeObjCGCAttr(); |
215 | R.removeObjCGCAttr(); |
216 | } |
217 | |
218 | if (L.getObjCLifetime() == R.getObjCLifetime()) { |
219 | Q.setObjCLifetime(L.getObjCLifetime()); |
220 | L.removeObjCLifetime(); |
221 | R.removeObjCLifetime(); |
222 | } |
223 | |
224 | if (L.getAddressSpace() == R.getAddressSpace()) { |
225 | Q.setAddressSpace(L.getAddressSpace()); |
226 | L.removeAddressSpace(); |
227 | R.removeAddressSpace(); |
228 | } |
229 | return Q; |
230 | } |
231 | |
232 | static Qualifiers fromFastMask(unsigned Mask) { |
233 | Qualifiers Qs; |
234 | Qs.addFastQualifiers(Mask); |
235 | return Qs; |
236 | } |
237 | |
238 | static Qualifiers fromCVRMask(unsigned CVR) { |
239 | Qualifiers Qs; |
240 | Qs.addCVRQualifiers(CVR); |
241 | return Qs; |
242 | } |
243 | |
244 | static Qualifiers fromCVRUMask(unsigned CVRU) { |
245 | Qualifiers Qs; |
246 | Qs.addCVRUQualifiers(CVRU); |
247 | return Qs; |
248 | } |
249 | |
250 | |
251 | static Qualifiers fromOpaqueValue(unsigned opaque) { |
252 | Qualifiers Qs; |
253 | Qs.Mask = opaque; |
254 | return Qs; |
255 | } |
256 | |
257 | |
258 | unsigned getAsOpaqueValue() const { |
259 | return Mask; |
260 | } |
261 | |
262 | bool hasConst() const { return Mask & Const; } |
263 | bool hasOnlyConst() const { return Mask == Const; } |
264 | void removeConst() { Mask &= ~Const; } |
265 | void addConst() { Mask |= Const; } |
266 | |
267 | bool hasVolatile() const { return Mask & Volatile; } |
268 | bool hasOnlyVolatile() const { return Mask == Volatile; } |
269 | void removeVolatile() { Mask &= ~Volatile; } |
270 | void addVolatile() { Mask |= Volatile; } |
271 | |
272 | bool hasRestrict() const { return Mask & Restrict; } |
273 | bool hasOnlyRestrict() const { return Mask == Restrict; } |
274 | void removeRestrict() { Mask &= ~Restrict; } |
275 | void addRestrict() { Mask |= Restrict; } |
276 | |
277 | bool hasCVRQualifiers() const { return getCVRQualifiers(); } |
278 | unsigned getCVRQualifiers() const { return Mask & CVRMask; } |
279 | unsigned getCVRUQualifiers() const { return Mask & (CVRMask | UMask); } |
280 | |
281 | void setCVRQualifiers(unsigned mask) { |
282 | assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits"); |
283 | Mask = (Mask & ~CVRMask) | mask; |
284 | } |
285 | void removeCVRQualifiers(unsigned mask) { |
286 | assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits"); |
287 | Mask &= ~mask; |
288 | } |
289 | void removeCVRQualifiers() { |
290 | removeCVRQualifiers(CVRMask); |
291 | } |
292 | void addCVRQualifiers(unsigned mask) { |
293 | assert(!(mask & ~CVRMask) && "bitmask contains non-CVR bits"); |
294 | Mask |= mask; |
295 | } |
296 | void addCVRUQualifiers(unsigned mask) { |
297 | assert(!(mask & ~CVRMask & ~UMask) && "bitmask contains non-CVRU bits"); |
298 | Mask |= mask; |
299 | } |
300 | |
301 | bool hasUnaligned() const { return Mask & UMask; } |
302 | void setUnaligned(bool flag) { |
303 | Mask = (Mask & ~UMask) | (flag ? UMask : 0); |
304 | } |
305 | void removeUnaligned() { Mask &= ~UMask; } |
306 | void addUnaligned() { Mask |= UMask; } |
307 | |
308 | bool hasObjCGCAttr() const { return Mask & GCAttrMask; } |
309 | GC getObjCGCAttr() const { return GC((Mask & GCAttrMask) >> GCAttrShift); } |
310 | void setObjCGCAttr(GC type) { |
311 | Mask = (Mask & ~GCAttrMask) | (type << GCAttrShift); |
312 | } |
313 | void removeObjCGCAttr() { setObjCGCAttr(GCNone); } |
314 | void addObjCGCAttr(GC type) { |
315 | assert(type); |
316 | setObjCGCAttr(type); |
317 | } |
318 | Qualifiers withoutObjCGCAttr() const { |
319 | Qualifiers qs = *this; |
320 | qs.removeObjCGCAttr(); |
321 | return qs; |
322 | } |
323 | Qualifiers withoutObjCLifetime() const { |
324 | Qualifiers qs = *this; |
325 | qs.removeObjCLifetime(); |
326 | return qs; |
327 | } |
328 | Qualifiers withoutAddressSpace() const { |
329 | Qualifiers qs = *this; |
330 | qs.removeAddressSpace(); |
331 | return qs; |
332 | } |
333 | |
334 | bool hasObjCLifetime() const { return Mask & LifetimeMask; } |
335 | ObjCLifetime getObjCLifetime() const { |
336 | return ObjCLifetime((Mask & LifetimeMask) >> LifetimeShift); |
337 | } |
338 | void setObjCLifetime(ObjCLifetime type) { |
339 | Mask = (Mask & ~LifetimeMask) | (type << LifetimeShift); |
340 | } |
341 | void removeObjCLifetime() { setObjCLifetime(OCL_None); } |
342 | void addObjCLifetime(ObjCLifetime type) { |
343 | assert(type); |
344 | assert(!hasObjCLifetime()); |
345 | Mask |= (type << LifetimeShift); |
346 | } |
347 | |
348 | |
349 | bool hasNonTrivialObjCLifetime() const { |
350 | ObjCLifetime lifetime = getObjCLifetime(); |
351 | return (lifetime > OCL_ExplicitNone); |
352 | } |
353 | |
354 | |
355 | bool hasStrongOrWeakObjCLifetime() const { |
356 | ObjCLifetime lifetime = getObjCLifetime(); |
357 | return (lifetime == OCL_Strong || lifetime == OCL_Weak); |
358 | } |
359 | |
360 | bool hasAddressSpace() const { return Mask & AddressSpaceMask; } |
361 | LangAS getAddressSpace() const { |
362 | return static_cast<LangAS>(Mask >> AddressSpaceShift); |
363 | } |
364 | bool hasTargetSpecificAddressSpace() const { |
365 | return isTargetAddressSpace(getAddressSpace()); |
366 | } |
367 | |
368 | unsigned getAddressSpaceAttributePrintValue() const { |
369 | auto Addr = getAddressSpace(); |
370 | |
371 | |
372 | |
373 | assert(Addr == LangAS::Default || hasTargetSpecificAddressSpace()); |
374 | if (Addr != LangAS::Default) |
375 | return toTargetAddressSpace(Addr); |
376 | |
377 | |
378 | |
379 | return 0; |
380 | } |
381 | void setAddressSpace(LangAS space) { |
382 | assert((unsigned)space <= MaxAddressSpace); |
383 | Mask = (Mask & ~AddressSpaceMask) |
384 | | (((uint32_t) space) << AddressSpaceShift); |
385 | } |
386 | void removeAddressSpace() { setAddressSpace(LangAS::Default); } |
387 | void addAddressSpace(LangAS space) { |
388 | assert(space != LangAS::Default); |
389 | setAddressSpace(space); |
390 | } |
391 | |
392 | |
393 | |
394 | bool hasFastQualifiers() const { return getFastQualifiers(); } |
395 | unsigned getFastQualifiers() const { return Mask & FastMask; } |
396 | void setFastQualifiers(unsigned mask) { |
397 | assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits"); |
398 | Mask = (Mask & ~FastMask) | mask; |
399 | } |
400 | void removeFastQualifiers(unsigned mask) { |
401 | assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits"); |
402 | Mask &= ~mask; |
403 | } |
404 | void removeFastQualifiers() { |
405 | removeFastQualifiers(FastMask); |
406 | } |
407 | void addFastQualifiers(unsigned mask) { |
408 | assert(!(mask & ~FastMask) && "bitmask contains non-fast qualifier bits"); |
409 | Mask |= mask; |
410 | } |
411 | |
412 | |
413 | |
414 | bool hasNonFastQualifiers() const { return Mask & ~FastMask; } |
415 | Qualifiers getNonFastQualifiers() const { |
416 | Qualifiers Quals = *this; |
417 | Quals.setFastQualifiers(0); |
418 | return Quals; |
419 | } |
420 | |
421 | |
422 | bool hasQualifiers() const { return Mask; } |
423 | bool empty() const { return !Mask; } |
424 | |
425 | |
426 | void addQualifiers(Qualifiers Q) { |
427 | |
428 | |
429 | if (!(Q.Mask & ~CVRMask)) |
430 | Mask |= Q.Mask; |
431 | else { |
432 | Mask |= (Q.Mask & CVRMask); |
433 | if (Q.hasAddressSpace()) |
434 | addAddressSpace(Q.getAddressSpace()); |
435 | if (Q.hasObjCGCAttr()) |
436 | addObjCGCAttr(Q.getObjCGCAttr()); |
437 | if (Q.hasObjCLifetime()) |
438 | addObjCLifetime(Q.getObjCLifetime()); |
439 | } |
440 | } |
441 | |
442 | |
443 | void removeQualifiers(Qualifiers Q) { |
444 | |
445 | |
446 | if (!(Q.Mask & ~CVRMask)) |
447 | Mask &= ~Q.Mask; |
448 | else { |
449 | Mask &= ~(Q.Mask & CVRMask); |
450 | if (getObjCGCAttr() == Q.getObjCGCAttr()) |
451 | removeObjCGCAttr(); |
452 | if (getObjCLifetime() == Q.getObjCLifetime()) |
453 | removeObjCLifetime(); |
454 | if (getAddressSpace() == Q.getAddressSpace()) |
455 | removeAddressSpace(); |
456 | } |
457 | } |
458 | |
459 | |
460 | |
461 | void addConsistentQualifiers(Qualifiers qs) { |
462 | assert(getAddressSpace() == qs.getAddressSpace() || |
463 | !hasAddressSpace() || !qs.hasAddressSpace()); |
464 | assert(getObjCGCAttr() == qs.getObjCGCAttr() || |
465 | !hasObjCGCAttr() || !qs.hasObjCGCAttr()); |
466 | assert(getObjCLifetime() == qs.getObjCLifetime() || |
467 | !hasObjCLifetime() || !qs.hasObjCLifetime()); |
468 | Mask |= qs.Mask; |
469 | } |
470 | |
471 | |
472 | |
473 | |
474 | |
475 | |
476 | |
477 | |
478 | static bool isAddressSpaceSupersetOf(LangAS A, LangAS B) { |
479 | |
480 | return A == B || |
481 | |
482 | |
483 | (A == LangAS::opencl_generic && B != LangAS::opencl_constant) || |
484 | |
485 | |
486 | |
487 | (A == LangAS::opencl_global && (B == LangAS::opencl_global_device || |
488 | B == LangAS::opencl_global_host)) || |
489 | (A == LangAS::sycl_global && (B == LangAS::sycl_global_device || |
490 | B == LangAS::sycl_global_host)) || |
491 | |
492 | ((isPtrSizeAddressSpace(A) || A == LangAS::Default) && |
493 | (isPtrSizeAddressSpace(B) || B == LangAS::Default)) || |
494 | |
495 | (A == LangAS::Default && |
496 | (B == LangAS::sycl_private || B == LangAS::sycl_local || |
497 | B == LangAS::sycl_global || B == LangAS::sycl_global_device || |
498 | B == LangAS::sycl_global_host)); |
499 | } |
500 | |
501 | |
502 | |
503 | bool isAddressSpaceSupersetOf(Qualifiers other) const { |
504 | return isAddressSpaceSupersetOf(getAddressSpace(), other.getAddressSpace()); |
505 | } |
506 | |
507 | |
508 | |
509 | |
510 | bool compatiblyIncludes(Qualifiers other) const { |
511 | return isAddressSpaceSupersetOf(other) && |
512 | |
513 | |
514 | (getObjCGCAttr() == other.getObjCGCAttr() || !hasObjCGCAttr() || |
515 | !other.hasObjCGCAttr()) && |
516 | |
517 | getObjCLifetime() == other.getObjCLifetime() && |
518 | |
519 | (((Mask & CVRMask) | (other.Mask & CVRMask)) == (Mask & CVRMask)) && |
520 | |
521 | (!other.hasUnaligned() || hasUnaligned()); |
522 | } |
523 | |
524 | |
525 | |
526 | |
527 | |
528 | |
529 | |
530 | |
531 | bool compatiblyIncludesObjCLifetime(Qualifiers other) const { |
532 | if (getObjCLifetime() == other.getObjCLifetime()) |
533 | return true; |
534 | |
535 | if (getObjCLifetime() == OCL_Weak || other.getObjCLifetime() == OCL_Weak) |
536 | return false; |
537 | |
538 | if (getObjCLifetime() == OCL_None || other.getObjCLifetime() == OCL_None) |
539 | return true; |
540 | |
541 | return hasConst(); |
542 | } |
543 | |
544 | |
545 | |
546 | bool isStrictSupersetOf(Qualifiers Other) const; |
547 | |
548 | bool operator==(Qualifiers Other) const { return Mask == Other.Mask; } |
549 | bool operator!=(Qualifiers Other) const { return Mask != Other.Mask; } |
550 | |
551 | explicit operator bool() const { return hasQualifiers(); } |
552 | |
553 | Qualifiers &operator+=(Qualifiers R) { |
554 | addQualifiers(R); |
555 | return *this; |
556 | } |
557 | |
558 | |
559 | |
560 | friend Qualifiers operator+(Qualifiers L, Qualifiers R) { |
561 | L += R; |
562 | return L; |
563 | } |
564 | |
565 | Qualifiers &operator-=(Qualifiers R) { |
566 | removeQualifiers(R); |
567 | return *this; |
568 | } |
569 | |
570 | |
571 | friend Qualifiers operator-(Qualifiers L, Qualifiers R) { |
572 | L -= R; |
573 | return L; |
574 | } |
575 | |
576 | std::string getAsString() const; |
577 | std::string getAsString(const PrintingPolicy &Policy) const; |
578 | |
579 | static std::string getAddrSpaceAsString(LangAS AS); |
580 | |
581 | bool isEmptyWhenPrinted(const PrintingPolicy &Policy) const; |
582 | void print(raw_ostream &OS, const PrintingPolicy &Policy, |
583 | bool appendSpaceIfNonEmpty = false) const; |
584 | |
585 | void Profile(llvm::FoldingSetNodeID &ID) const { |
586 | ID.AddInteger(Mask); |
587 | } |
588 | |
589 | private: |
590 | |
591 | |
592 | uint32_t Mask = 0; |
593 | |
594 | static const uint32_t UMask = 0x8; |
595 | static const uint32_t UShift = 3; |
596 | static const uint32_t GCAttrMask = 0x30; |
597 | static const uint32_t GCAttrShift = 4; |
598 | static const uint32_t LifetimeMask = 0x1C0; |
599 | static const uint32_t LifetimeShift = 6; |
600 | static const uint32_t AddressSpaceMask = |
601 | ~(CVRMask | UMask | GCAttrMask | LifetimeMask); |
602 | static const uint32_t AddressSpaceShift = 9; |
603 | }; |
604 | |
605 | |
606 | |
607 | struct SplitQualType { |
608 | |
609 | const Type *Ty = nullptr; |
610 | |
611 | |
612 | Qualifiers Quals; |
613 | |
614 | SplitQualType() = default; |
615 | SplitQualType(const Type *ty, Qualifiers qs) : Ty(ty), Quals(qs) {} |
616 | |
617 | SplitQualType getSingleStepDesugaredType() const; |
618 | |
619 | |
620 | std::pair<const Type *,Qualifiers> asPair() const { |
621 | return std::pair<const Type *, Qualifiers>(Ty, Quals); |
622 | } |
623 | |
624 | friend bool operator==(SplitQualType a, SplitQualType b) { |
625 | return a.Ty == b.Ty && a.Quals == b.Quals; |
626 | } |
627 | friend bool operator!=(SplitQualType a, SplitQualType b) { |
628 | return a.Ty != b.Ty || a.Quals != b.Quals; |
629 | } |
630 | }; |
631 | |
632 | |
633 | |
634 | |
635 | |
636 | |
637 | enum class ObjCSubstitutionContext { |
638 | |
639 | Ordinary, |
640 | |
641 | |
642 | Result, |
643 | |
644 | |
645 | Parameter, |
646 | |
647 | |
648 | Property, |
649 | |
650 | |
651 | Superclass, |
652 | }; |
653 | |
654 | |
655 | |
656 | |
657 | |
658 | |
659 | |
660 | |
661 | |
662 | |
663 | |
664 | |
665 | |
666 | |
667 | |
668 | class QualType { |
669 | friend class QualifierCollector; |
670 | |
671 | |
672 | llvm::PointerIntPair<llvm::PointerUnion<const Type *, const ExtQuals *>, |
673 | Qualifiers::FastWidth> Value; |
674 | |
675 | const ExtQuals *getExtQualsUnsafe() const { |
676 | return Value.getPointer().get<const ExtQuals*>(); |
677 | } |
678 | |
679 | const Type *getTypePtrUnsafe() const { |
680 | return Value.getPointer().get<const Type*>(); |
681 | } |
682 | |
683 | const ExtQualsTypeCommonBase *getCommonPtr() const { |
684 | assert(!isNull() && "Cannot retrieve a NULL type pointer"); |
685 | auto CommonPtrVal = reinterpret_cast<uintptr_t>(Value.getOpaqueValue()); |
686 | CommonPtrVal &= ~(uintptr_t)((1 << TypeAlignmentInBits) - 1); |
687 | return reinterpret_cast<ExtQualsTypeCommonBase*>(CommonPtrVal); |
688 | } |
689 | |
690 | public: |
691 | QualType() = default; |
692 | QualType(const Type *Ptr, unsigned Quals) : Value(Ptr, Quals) {} |
693 | QualType(const ExtQuals *Ptr, unsigned Quals) : Value(Ptr, Quals) {} |
694 | |
695 | unsigned getLocalFastQualifiers() const { return Value.getInt(); } |
696 | void setLocalFastQualifiers(unsigned Quals) { Value.setInt(Quals); } |
697 | |
698 | |
699 | |
700 | |
701 | |
702 | const Type *getTypePtr() const; |
703 | |
704 | const Type *getTypePtrOrNull() const; |
705 | |
706 | |
707 | const IdentifierInfo *getBaseTypeIdentifier() const; |
708 | |
709 | |
710 | |
711 | SplitQualType split() const; |
712 | |
713 | void *getAsOpaquePtr() const { return Value.getOpaqueValue(); } |
714 | |
715 | static QualType getFromOpaquePtr(const void *Ptr) { |
716 | QualType T; |
717 | T.Value.setFromOpaqueValue(const_cast<void*>(Ptr)); |
718 | return T; |
719 | } |
720 | |
721 | const Type &operator*() const { |
722 | return *getTypePtr(); |
723 | } |
724 | |
725 | const Type *operator->() const { |
726 | return getTypePtr(); |
727 | } |
728 | |
729 | bool isCanonical() const; |
730 | bool isCanonicalAsParam() const; |
731 | |
732 | |
733 | bool isNull() const { |
734 | return Value.getPointer().isNull(); |
735 | } |
736 | |
737 | |
738 | |
739 | |
740 | bool isLocalConstQualified() const { |
741 | return (getLocalFastQualifiers() & Qualifiers::Const); |
742 | } |
743 | |
744 | |
745 | bool isConstQualified() const; |
746 | |
747 | |
748 | |
749 | |
750 | bool isLocalRestrictQualified() const { |
751 | return (getLocalFastQualifiers() & Qualifiers::Restrict); |
752 | } |
753 | |
754 | |
755 | bool isRestrictQualified() const; |
756 | |
757 | |
758 | |
759 | |
760 | bool isLocalVolatileQualified() const { |
761 | return (getLocalFastQualifiers() & Qualifiers::Volatile); |
762 | } |
763 | |
764 | |
765 | bool isVolatileQualified() const; |
766 | |
767 | |
768 | |
769 | |
770 | bool hasLocalQualifiers() const { |
771 | return getLocalFastQualifiers() || hasLocalNonFastQualifiers(); |
772 | } |
773 | |
774 | |
775 | bool hasQualifiers() const; |
776 | |
777 | |
778 | |
779 | |
780 | bool hasLocalNonFastQualifiers() const { |
781 | return Value.getPointer().is<const ExtQuals*>(); |
782 | } |
783 | |
784 | |
785 | |
786 | |
787 | Qualifiers getLocalQualifiers() const; |
788 | |
789 | |
790 | Qualifiers getQualifiers() const; |
791 | |
792 | |
793 | |
794 | |
795 | unsigned getLocalCVRQualifiers() const { |
796 | return getLocalFastQualifiers(); |
797 | } |
798 | |
799 | |
800 | |
801 | unsigned getCVRQualifiers() const; |
802 | |
803 | bool isConstant(const ASTContext& Ctx) const { |
804 | return QualType::isConstant(*this, Ctx); |
805 | } |
806 | |
807 | |
808 | bool isPODType(const ASTContext &Context) const; |
809 | |
810 | |
811 | |
812 | bool isCXX98PODType(const ASTContext &Context) const; |
813 | |
814 | |
815 | |
816 | |
817 | |
818 | bool isCXX11PODType(const ASTContext &Context) const; |
819 | |
820 | |
821 | bool isTrivialType(const ASTContext &Context) const; |
822 | |
823 | |
824 | bool isTriviallyCopyableType(const ASTContext &Context) const; |
825 | |
826 | |
827 | |
828 | bool mayBeDynamicClass() const; |
829 | |
830 | |
831 | bool mayBeNotDynamicClass() const; |
832 | |
833 | |
834 | |
835 | |
836 | |
837 | void addConst() { |
838 | addFastQualifiers(Qualifiers::Const); |
839 | } |
840 | QualType withConst() const { |
841 | return withFastQualifiers(Qualifiers::Const); |
842 | } |
843 | |
844 | |
845 | void addVolatile() { |
846 | addFastQualifiers(Qualifiers::Volatile); |
847 | } |
848 | QualType withVolatile() const { |
849 | return withFastQualifiers(Qualifiers::Volatile); |
850 | } |
851 | |
852 | |
853 | void addRestrict() { |
854 | addFastQualifiers(Qualifiers::Restrict); |
855 | } |
856 | QualType withRestrict() const { |
857 | return withFastQualifiers(Qualifiers::Restrict); |
858 | } |
859 | |
860 | QualType withCVRQualifiers(unsigned CVR) const { |
861 | return withFastQualifiers(CVR); |
862 | } |
863 | |
864 | void addFastQualifiers(unsigned TQs) { |
865 | assert(!(TQs & ~Qualifiers::FastMask) |
866 | && "non-fast qualifier bits set in mask!"); |
867 | Value.setInt(Value.getInt() | TQs); |
868 | } |
869 | |
870 | void removeLocalConst(); |
871 | void removeLocalVolatile(); |
872 | void removeLocalRestrict(); |
873 | void removeLocalCVRQualifiers(unsigned Mask); |
874 | |
875 | void removeLocalFastQualifiers() { Value.setInt(0); } |
876 | void removeLocalFastQualifiers(unsigned Mask) { |
877 | assert(!(Mask & ~Qualifiers::FastMask) && "mask has non-fast qualifiers"); |
878 | Value.setInt(Value.getInt() & ~Mask); |
879 | } |
880 | |
881 | |
882 | |
883 | QualType withFastQualifiers(unsigned TQs) const { |
884 | QualType T = *this; |
885 | T.addFastQualifiers(TQs); |
886 | return T; |
887 | } |
888 | |
889 | |
890 | |
891 | QualType withExactLocalFastQualifiers(unsigned TQs) const { |
892 | return withoutLocalFastQualifiers().withFastQualifiers(TQs); |
893 | } |
894 | |
895 | |
896 | QualType withoutLocalFastQualifiers() const { |
897 | QualType T = *this; |
898 | T.removeLocalFastQualifiers(); |
899 | return T; |
900 | } |
901 | |
902 | QualType getCanonicalType() const; |
903 | |
904 | |
905 | |
906 | |
907 | QualType getLocalUnqualifiedType() const { return QualType(getTypePtr(), 0); } |
908 | |
909 | |
910 | |
911 | |
912 | |
913 | |
914 | |
915 | |
916 | |
917 | |
918 | |
919 | |
920 | |
921 | |
922 | |
923 | |
924 | |
925 | |
926 | |
927 | inline QualType getUnqualifiedType() const; |
928 | |
929 | |
930 | |
931 | |
932 | |
933 | |
934 | |
935 | |
936 | |
937 | |
938 | inline SplitQualType getSplitUnqualifiedType() const; |
939 | |
940 | |
941 | |
942 | bool isMoreQualifiedThan(QualType Other) const; |
943 | |
944 | |
945 | |
946 | bool isAtLeastAsQualifiedAs(QualType Other) const; |
947 | |
948 | QualType getNonReferenceType() const; |
949 | |
950 | |
951 | |
952 | |
953 | |
954 | |
955 | |
956 | |
957 | |
958 | QualType getNonLValueExprType(const ASTContext &Context) const; |
959 | |
960 | |
961 | |
962 | |
963 | |
964 | QualType getNonPackExpansionType() const; |
965 | |
966 | |
967 | |
968 | |
969 | |
970 | |
971 | |
972 | |
973 | |
974 | QualType getDesugaredType(const ASTContext &Context) const { |
975 | return getDesugaredType(*this, Context); |
976 | } |
977 | |
978 | SplitQualType getSplitDesugaredType() const { |
979 | return getSplitDesugaredType(*this); |
980 | } |
981 | |
982 | |
983 | |
984 | |
985 | |
986 | |
987 | QualType getSingleStepDesugaredType(const ASTContext &Context) const { |
988 | return getSingleStepDesugaredTypeImpl(*this, Context); |
989 | } |
990 | |
991 | |
992 | |
993 | QualType IgnoreParens() const { |
994 | if (isa<ParenType>(*this)) |
995 | return QualType::IgnoreParens(*this); |
996 | return *this; |
997 | } |
998 | |
999 | |
1000 | friend bool operator==(const QualType &LHS, const QualType &RHS) { |
1001 | return LHS.Value == RHS.Value; |
1002 | } |
1003 | friend bool operator!=(const QualType &LHS, const QualType &RHS) { |
1004 | return LHS.Value != RHS.Value; |
1005 | } |
1006 | friend bool operator<(const QualType &LHS, const QualType &RHS) { |
1007 | return LHS.Value < RHS.Value; |
1008 | } |
1009 | |
1010 | static std::string getAsString(SplitQualType split, |
1011 | const PrintingPolicy &Policy) { |
1012 | return getAsString(split.Ty, split.Quals, Policy); |
1013 | } |
1014 | static std::string getAsString(const Type *ty, Qualifiers qs, |
1015 | const PrintingPolicy &Policy); |
1016 | |
1017 | std::string getAsString() const; |
1018 | std::string getAsString(const PrintingPolicy &Policy) const; |
1019 | |
1020 | void print(raw_ostream &OS, const PrintingPolicy &Policy, |
1021 | const Twine &PlaceHolder = Twine(), |
1022 | unsigned Indentation = 0) const; |
1023 | |
1024 | static void print(SplitQualType split, raw_ostream &OS, |
1025 | const PrintingPolicy &policy, const Twine &PlaceHolder, |
1026 | unsigned Indentation = 0) { |
1027 | return print(split.Ty, split.Quals, OS, policy, PlaceHolder, Indentation); |
1028 | } |
1029 | |
1030 | static void print(const Type *ty, Qualifiers qs, |
1031 | raw_ostream &OS, const PrintingPolicy &policy, |
1032 | const Twine &PlaceHolder, |
1033 | unsigned Indentation = 0); |
1034 | |
1035 | void getAsStringInternal(std::string &Str, |
1036 | const PrintingPolicy &Policy) const; |
1037 | |
1038 | static void getAsStringInternal(SplitQualType split, std::string &out, |
1039 | const PrintingPolicy &policy) { |
1040 | return getAsStringInternal(split.Ty, split.Quals, out, policy); |
1041 | } |
1042 | |
1043 | static void getAsStringInternal(const Type *ty, Qualifiers qs, |
1044 | std::string &out, |
1045 | const PrintingPolicy &policy); |
1046 | |
1047 | class StreamedQualTypeHelper { |
1048 | const QualType &T; |
1049 | const PrintingPolicy &Policy; |
1050 | const Twine &PlaceHolder; |
1051 | unsigned Indentation; |
1052 | |
1053 | public: |
1054 | StreamedQualTypeHelper(const QualType &T, const PrintingPolicy &Policy, |
1055 | const Twine &PlaceHolder, unsigned Indentation) |
1056 | : T(T), Policy(Policy), PlaceHolder(PlaceHolder), |
1057 | Indentation(Indentation) {} |
1058 | |
1059 | friend raw_ostream &operator<<(raw_ostream &OS, |
1060 | const StreamedQualTypeHelper &SQT) { |
1061 | SQT.T.print(OS, SQT.Policy, SQT.PlaceHolder, SQT.Indentation); |
1062 | return OS; |
1063 | } |
1064 | }; |
1065 | |
1066 | StreamedQualTypeHelper stream(const PrintingPolicy &Policy, |
1067 | const Twine &PlaceHolder = Twine(), |
1068 | unsigned Indentation = 0) const { |
1069 | return StreamedQualTypeHelper(*this, Policy, PlaceHolder, Indentation); |
1070 | } |
1071 | |
1072 | void dump(const char *s) const; |
1073 | void dump() const; |
1074 | void dump(llvm::raw_ostream &OS, const ASTContext &Context) const; |
1075 | |
1076 | void Profile(llvm::FoldingSetNodeID &ID) const { |
1077 | ID.AddPointer(getAsOpaquePtr()); |
1078 | } |
1079 | |
1080 | |
1081 | inline bool hasAddressSpace() const; |
1082 | |
1083 | |
1084 | inline LangAS getAddressSpace() const; |
1085 | |
1086 | |
1087 | |
1088 | |
1089 | |
1090 | |
1091 | |
1092 | |
1093 | |
1094 | bool isAddressSpaceOverlapping(QualType T) const { |
1095 | Qualifiers Q = getQualifiers(); |
1096 | Qualifiers TQ = T.getQualifiers(); |
1097 | |
1098 | return Q.isAddressSpaceSupersetOf(TQ) || TQ.isAddressSpaceSupersetOf(Q); |
1099 | } |
1100 | |
1101 | |
1102 | inline Qualifiers::GC getObjCGCAttr() const; |
1103 | |
1104 | |
1105 | bool isObjCGCWeak() const { |
1106 | return getObjCGCAttr() == Qualifiers::Weak; |
1107 | } |
1108 | |
1109 | |
1110 | bool isObjCGCStrong() const { |
1111 | return getObjCGCAttr() == Qualifiers::Strong; |
1112 | } |
1113 | |
1114 | |
1115 | Qualifiers::ObjCLifetime getObjCLifetime() const { |
1116 | return getQualifiers().getObjCLifetime(); |
1117 | } |
1118 | |
1119 | bool hasNonTrivialObjCLifetime() const { |
1120 | return getQualifiers().hasNonTrivialObjCLifetime(); |
1121 | } |
1122 | |
1123 | bool hasStrongOrWeakObjCLifetime() const { |
1124 | return getQualifiers().hasStrongOrWeakObjCLifetime(); |
1125 | } |
1126 | |
1127 | |
1128 | bool isNonWeakInMRRWithObjCWeak(const ASTContext &Context) const; |
1129 | |
1130 | enum PrimitiveDefaultInitializeKind { |
1131 | |
1132 | |
1133 | |
1134 | PDIK_Trivial, |
1135 | |
1136 | |
1137 | |
1138 | PDIK_ARCStrong, |
1139 | |
1140 | |
1141 | |
1142 | PDIK_ARCWeak, |
1143 | |
1144 | |
1145 | PDIK_Struct |
1146 | }; |
1147 | |
1148 | |
1149 | |
1150 | |
1151 | |
1152 | |
1153 | PrimitiveDefaultInitializeKind |
1154 | isNonTrivialToPrimitiveDefaultInitialize() const; |
1155 | |
1156 | enum PrimitiveCopyKind { |
1157 | |
1158 | |
1159 | |
1160 | PCK_Trivial, |
1161 | |
1162 | |
1163 | |
1164 | |
1165 | PCK_VolatileTrivial, |
1166 | |
1167 | |
1168 | |
1169 | PCK_ARCStrong, |
1170 | |
1171 | |
1172 | |
1173 | PCK_ARCWeak, |
1174 | |
1175 | |
1176 | |
1177 | |
1178 | |
1179 | |
1180 | |
1181 | PCK_Struct |
1182 | }; |
1183 | |
1184 | |
1185 | |
1186 | |
1187 | PrimitiveCopyKind isNonTrivialToPrimitiveCopy() const; |
1188 | |
1189 | |
1190 | |
1191 | |
1192 | |
1193 | |
1194 | |
1195 | PrimitiveCopyKind isNonTrivialToPrimitiveDestructiveMove() const; |
1196 | |
1197 | enum DestructionKind { |
1198 | DK_none, |
1199 | DK_cxx_destructor, |
1200 | DK_objc_strong_lifetime, |
1201 | DK_objc_weak_lifetime, |
1202 | DK_nontrivial_c_struct |
1203 | }; |
1204 | |
1205 | |
1206 | |
1207 | |
1208 | |
1209 | DestructionKind isDestructedType() const { |
1210 | return isDestructedTypeImpl(*this); |
1211 | } |
1212 | |
1213 | |
1214 | |
1215 | |
1216 | |
1217 | bool hasNonTrivialToPrimitiveDefaultInitializeCUnion() const; |
1218 | |
1219 | |
1220 | |
1221 | |
1222 | bool hasNonTrivialToPrimitiveDestructCUnion() const; |
1223 | |
1224 | |
1225 | |
1226 | |
1227 | bool hasNonTrivialToPrimitiveCopyCUnion() const; |
1228 | |
1229 | |
1230 | |
1231 | |
1232 | |
1233 | |
1234 | |
1235 | |
1236 | |
1237 | |
1238 | |
1239 | bool isCForbiddenLValueType() const; |
1240 | |
1241 | |
1242 | |
1243 | |
1244 | |
1245 | |
1246 | |
1247 | |
1248 | |
1249 | |
1250 | |
1251 | |
1252 | |
1253 | |
1254 | |
1255 | QualType substObjCTypeArgs(ASTContext &ctx, |
1256 | ArrayRef<QualType> typeArgs, |
1257 | ObjCSubstitutionContext context) const; |
1258 | |
1259 | |
1260 | |
1261 | |
1262 | |
1263 | |
1264 | |
1265 | |
1266 | |
1267 | |
1268 | |
1269 | |
1270 | |
1271 | |
1272 | |
1273 | |
1274 | |
1275 | |
1276 | |
1277 | |
1278 | |
1279 | QualType substObjCMemberType(QualType objectType, |
1280 | const DeclContext *dc, |
1281 | ObjCSubstitutionContext context) const; |
1282 | |
1283 | |
1284 | QualType stripObjCKindOfType(const ASTContext &ctx) const; |
1285 | |
1286 | |
1287 | QualType getAtomicUnqualifiedType() const; |
1288 | |
1289 | private: |
1290 | |
1291 | |
1292 | |
1293 | static bool isConstant(QualType T, const ASTContext& Ctx); |
1294 | static QualType getDesugaredType(QualType T, const ASTContext &Context); |
1295 | static SplitQualType getSplitDesugaredType(QualType T); |
1296 | static SplitQualType getSplitUnqualifiedTypeImpl(QualType type); |
1297 | static QualType getSingleStepDesugaredTypeImpl(QualType type, |
1298 | const ASTContext &C); |
1299 | static QualType IgnoreParens(QualType T); |
1300 | static DestructionKind isDestructedTypeImpl(QualType type); |
1301 | |
1302 | |
1303 | static bool hasNonTrivialToPrimitiveDefaultInitializeCUnion(const RecordDecl *RD); |
1304 | static bool hasNonTrivialToPrimitiveDestructCUnion(const RecordDecl *RD); |
1305 | static bool hasNonTrivialToPrimitiveCopyCUnion(const RecordDecl *RD); |
1306 | }; |
1307 | |
1308 | } |
1309 | |
1310 | namespace llvm { |
1311 | |
1312 | |
1313 | |
1314 | template<> struct simplify_type< ::clang::QualType> { |
1315 | using SimpleType = const ::clang::Type *; |
1316 | |
1317 | static SimpleType getSimplifiedValue(::clang::QualType Val) { |
1318 | return Val.getTypePtr(); |
1319 | } |
1320 | }; |
1321 | |
1322 | |
1323 | template<> |
1324 | struct PointerLikeTypeTraits<clang::QualType> { |
1325 | static inline void *getAsVoidPointer(clang::QualType P) { |
1326 | return P.getAsOpaquePtr(); |
1327 | } |
1328 | |
1329 | static inline clang::QualType getFromVoidPointer(void *P) { |
1330 | return clang::QualType::getFromOpaquePtr(P); |
1331 | } |
1332 | |
1333 | |
1334 | static constexpr int NumLowBitsAvailable = 0; |
1335 | }; |
1336 | |
1337 | } |
1338 | |
1339 | namespace clang { |
1340 | |
1341 | |
1342 | |
1343 | |
1344 | class ExtQualsTypeCommonBase { |
1345 | friend class ExtQuals; |
1346 | friend class QualType; |
1347 | friend class Type; |
1348 | |
1349 | |
1350 | |
1351 | |
1352 | |
1353 | |
1354 | const Type *const BaseType; |
1355 | |
1356 | |
1357 | QualType CanonicalType; |
1358 | |
1359 | ExtQualsTypeCommonBase(const Type *baseType, QualType canon) |
1360 | : BaseType(baseType), CanonicalType(canon) {} |
1361 | }; |
1362 | |
1363 | |
1364 | |
1365 | |
1366 | |
1367 | |
1368 | |
1369 | |
1370 | |
1371 | |
1372 | |
1373 | class ExtQuals : public ExtQualsTypeCommonBase, public llvm::FoldingSetNode { |
1374 | |
1375 | |
1376 | |
1377 | |
1378 | |
1379 | |
1380 | |
1381 | |
1382 | |
1383 | |
1384 | |
1385 | |
1386 | |
1387 | |
1388 | |
1389 | Qualifiers Quals; |
1390 | |
1391 | ExtQuals *this_() { return this; } |
1392 | |
1393 | public: |
1394 | ExtQuals(const Type *baseType, QualType canon, Qualifiers quals) |
1395 | : ExtQualsTypeCommonBase(baseType, |
1396 | canon.isNull() ? QualType(this_(), 0) : canon), |
1397 | Quals(quals) { |
1398 | assert(Quals.hasNonFastQualifiers() |
1399 | && "ExtQuals created with no fast qualifiers"); |
1400 | assert(!Quals.hasFastQualifiers() |
1401 | && "ExtQuals created with fast qualifiers"); |
1402 | } |
1403 | |
1404 | Qualifiers getQualifiers() const { return Quals; } |
1405 | |
1406 | bool hasObjCGCAttr() const { return Quals.hasObjCGCAttr(); } |
1407 | Qualifiers::GC getObjCGCAttr() const { return Quals.getObjCGCAttr(); } |
1408 | |
1409 | bool hasObjCLifetime() const { return Quals.hasObjCLifetime(); } |
1410 | Qualifiers::ObjCLifetime getObjCLifetime() const { |
1411 | return Quals.getObjCLifetime(); |
1412 | } |
1413 | |
1414 | bool hasAddressSpace() const { return Quals.hasAddressSpace(); } |
1415 | LangAS getAddressSpace() const { return Quals.getAddressSpace(); } |
1416 | |
1417 | const Type *getBaseType() const { return BaseType; } |
1418 | |
1419 | public: |
1420 | void Profile(llvm::FoldingSetNodeID &ID) const { |
1421 | Profile(ID, getBaseType(), Quals); |
1422 | } |
1423 | |
1424 | static void Profile(llvm::FoldingSetNodeID &ID, |
1425 | const Type *BaseType, |
1426 | Qualifiers Quals) { |
1427 | assert(!Quals.hasFastQualifiers() && "fast qualifiers in ExtQuals hash!"); |
1428 | ID.AddPointer(BaseType); |
1429 | Quals.Profile(ID); |
1430 | } |
1431 | }; |
1432 | |
1433 | |
1434 | |
1435 | |
1436 | enum RefQualifierKind { |
1437 | |
1438 | RQ_None = 0, |
1439 | |
1440 | |
1441 | RQ_LValue, |
1442 | |
1443 | |
1444 | RQ_RValue |
1445 | }; |
1446 | |
1447 | |
1448 | enum class AutoTypeKeyword { |
1449 | |
1450 | Auto, |
1451 | |
1452 | |
1453 | DecltypeAuto, |
1454 | |
1455 | |
1456 | GNUAutoType |
1457 | }; |
1458 | |
1459 | |
1460 | |
1461 | |
1462 | |
1463 | |
1464 | |
1465 | |
1466 | |
1467 | |
1468 | |
1469 | |
1470 | |
1471 | |
1472 | |
1473 | |
1474 | |
1475 | |
1476 | |
1477 | |
1478 | |
1479 | |
1480 | |
1481 | |
1482 | |
1483 | |
1484 | |
1485 | class alignas(8) Type : public ExtQualsTypeCommonBase { |
1486 | public: |
1487 | enum TypeClass { |
1488 | #define TYPE(Class, Base) Class, |
1489 | #define LAST_TYPE(Class) TypeLast = Class |
1490 | #define ABSTRACT_TYPE(Class, Base) |
1491 | #include "clang/AST/TypeNodes.inc" |
1492 | }; |
1493 | |
1494 | private: |
1495 | |
1496 | class TypeBitfields { |
1497 | friend class Type; |
1498 | template <class T> friend class TypePropertyCache; |
1499 | |
1500 | |
1501 | unsigned TC : 8; |
1502 | |
1503 | |
1504 | unsigned Dependence : llvm::BitWidth<TypeDependence>; |
1505 | |
1506 | |
1507 | |
1508 | mutable unsigned CacheValid : 1; |
1509 | |
1510 | |
1511 | mutable unsigned CachedLinkage : 3; |
1512 | |
1513 | |
1514 | mutable unsigned CachedLocalOrUnnamed : 1; |
1515 | |
1516 | |
1517 | mutable unsigned FromAST : 1; |
1518 | |
1519 | bool isCacheValid() const { |
1520 | return CacheValid; |
1521 | } |
1522 | |
1523 | Linkage getLinkage() const { |
1524 | assert(isCacheValid() && "getting linkage from invalid cache"); |
1525 | return static_cast<Linkage>(CachedLinkage); |
1526 | } |
1527 | |
1528 | bool hasLocalOrUnnamedType() const { |
1529 | assert(isCacheValid() && "getting linkage from invalid cache"); |
1530 | return CachedLocalOrUnnamed; |
1531 | } |
1532 | }; |
1533 | enum { NumTypeBits = 8 + llvm::BitWidth<TypeDependence> + 6 }; |
1534 | |
1535 | protected: |
1536 | |
1537 | |
1538 | |
1539 | class ArrayTypeBitfields { |
1540 | friend class ArrayType; |
1541 | |
1542 | unsigned : NumTypeBits; |
1543 | |
1544 | |
1545 | |
1546 | unsigned IndexTypeQuals : 3; |
1547 | |
1548 | |
1549 | |
1550 | |
1551 | unsigned SizeModifier : 3; |
1552 | }; |
1553 | |
1554 | class ConstantArrayTypeBitfields { |
1555 | friend class ConstantArrayType; |
1556 | |
1557 | unsigned : NumTypeBits + 3 + 3; |
1558 | |
1559 | |
1560 | unsigned HasStoredSizeExpr : 1; |
1561 | }; |
1562 | |
1563 | class BuiltinTypeBitfields { |
1564 | friend class BuiltinType; |
1565 | |
1566 | unsigned : NumTypeBits; |
1567 | |
1568 | |
1569 | unsigned Kind : 8; |
1570 | }; |
1571 | |
1572 | |
1573 | |
1574 | |
1575 | class FunctionTypeBitfields { |
1576 | friend class FunctionProtoType; |
1577 | friend class FunctionType; |
1578 | |
1579 | unsigned : NumTypeBits; |
1580 | |
1581 | |
1582 | |
1583 | unsigned ExtInfo : 13; |
1584 | |
1585 | |
1586 | |
1587 | |
1588 | unsigned RefQualifier : 2; |
1589 | |
1590 | |
1591 | |
1592 | |
1593 | |
1594 | |
1595 | |
1596 | unsigned FastTypeQuals : Qualifiers::FastWidth; |
1597 | |
1598 | unsigned HasExtQuals : 1; |
1599 | |
1600 | |
1601 | |
1602 | |
1603 | |
1604 | unsigned NumParams : 16; |
1605 | |
1606 | |
1607 | unsigned ExceptionSpecType : 4; |
1608 | |
1609 | |
1610 | unsigned HasExtParameterInfos : 1; |
1611 | |
1612 | |
1613 | unsigned Variadic : 1; |
1614 | |
1615 | |
1616 | unsigned HasTrailingReturn : 1; |
1617 | }; |
1618 | |
1619 | class ObjCObjectTypeBitfields { |
1620 | friend class ObjCObjectType; |
1621 | |
1622 | unsigned : NumTypeBits; |
1623 | |
1624 | |
1625 | unsigned NumTypeArgs : 7; |
1626 | |
1627 | |
1628 | unsigned NumProtocols : 6; |
1629 | |
1630 | |
1631 | unsigned IsKindOf : 1; |
1632 | }; |
1633 | |
1634 | class ReferenceTypeBitfields { |
1635 | friend class ReferenceType; |
1636 | |
1637 | unsigned : NumTypeBits; |
1638 | |
1639 | |
1640 | |
1641 | |
1642 | |
1643 | |
1644 | |
1645 | |
1646 | |
1647 | |
1648 | |
1649 | |
1650 | unsigned SpelledAsLValue : 1; |
1651 | |
1652 | |
1653 | |
1654 | unsigned InnerRef : 1; |
1655 | }; |
1656 | |
1657 | class TypeWithKeywordBitfields { |
1658 | friend class TypeWithKeyword; |
1659 | |
1660 | unsigned : NumTypeBits; |
1661 | |
1662 | |
1663 | unsigned Keyword : 8; |
1664 | }; |
1665 | |
1666 | enum { NumTypeWithKeywordBits = 8 }; |
1667 | |
1668 | class ElaboratedTypeBitfields { |
1669 | friend class ElaboratedType; |
1670 | |
1671 | unsigned : NumTypeBits; |
1672 | unsigned : NumTypeWithKeywordBits; |
1673 | |
1674 | |
1675 | unsigned HasOwnedTagDecl : 1; |
1676 | }; |
1677 | |
1678 | class VectorTypeBitfields { |
1679 | friend class VectorType; |
1680 | friend class DependentVectorType; |
1681 | |
1682 | unsigned : NumTypeBits; |
1683 | |
1684 | |
1685 | |
1686 | unsigned VecKind : 3; |
1687 | |
1688 | uint32_t NumElements; |
1689 | }; |
1690 | |
1691 | class AttributedTypeBitfields { |
1692 | friend class AttributedType; |
1693 | |
1694 | unsigned : NumTypeBits; |
1695 | |
1696 | |
1697 | unsigned AttrKind : 32 - NumTypeBits; |
1698 | }; |
1699 | |
1700 | class AutoTypeBitfields { |
1701 | friend class AutoType; |
1702 | |
1703 | unsigned : NumTypeBits; |
1704 | |
1705 | |
1706 | |
1707 | unsigned Keyword : 2; |
1708 | |
1709 | |
1710 | |
1711 | |
1712 | |
1713 | |
1714 | |
1715 | |
1716 | unsigned NumArgs; |
1717 | }; |
1718 | |
1719 | class SubstTemplateTypeParmPackTypeBitfields { |
1720 | friend class SubstTemplateTypeParmPackType; |
1721 | |
1722 | unsigned : NumTypeBits; |
1723 | |
1724 | |
1725 | |
1726 | |
1727 | |
1728 | |
1729 | |
1730 | |
1731 | unsigned NumArgs; |
1732 | }; |
1733 | |
1734 | class TemplateSpecializationTypeBitfields { |
1735 | friend class TemplateSpecializationType; |
1736 | |
1737 | unsigned : NumTypeBits; |
1738 | |
1739 | |
1740 | unsigned TypeAlias : 1; |
1741 | |
1742 | |
1743 | |
1744 | |
1745 | |
1746 | |
1747 | |
1748 | |
1749 | unsigned NumArgs; |
1750 | }; |
1751 | |
1752 | class DependentTemplateSpecializationTypeBitfields { |
1753 | friend class DependentTemplateSpecializationType; |
1754 | |
1755 | unsigned : NumTypeBits; |
1756 | unsigned : NumTypeWithKeywordBits; |
1757 | |
1758 | |
1759 | |
1760 | |
1761 | |
1762 | |
1763 | |
1764 | |
1765 | unsigned NumArgs; |
1766 | }; |
1767 | |
1768 | class PackExpansionTypeBitfields { |
1769 | friend class PackExpansionType; |
1770 | |
1771 | unsigned : NumTypeBits; |
1772 | |
1773 | |
1774 | |
1775 | |
1776 | |
1777 | |
1778 | |
1779 | |
1780 | |
1781 | |
1782 | |
1783 | |
1784 | unsigned NumExpansions; |
1785 | }; |
1786 | |
1787 | union { |
1788 | TypeBitfields TypeBits; |
1789 | ArrayTypeBitfields ArrayTypeBits; |
1790 | ConstantArrayTypeBitfields ConstantArrayTypeBits; |
1791 | AttributedTypeBitfields AttributedTypeBits; |
1792 | AutoTypeBitfields AutoTypeBits; |
1793 | BuiltinTypeBitfields BuiltinTypeBits; |
1794 | FunctionTypeBitfields FunctionTypeBits; |
1795 | ObjCObjectTypeBitfields ObjCObjectTypeBits; |
1796 | ReferenceTypeBitfields ReferenceTypeBits; |
1797 | TypeWithKeywordBitfields TypeWithKeywordBits; |
1798 | ElaboratedTypeBitfields ElaboratedTypeBits; |
1799 | VectorTypeBitfields VectorTypeBits; |
1800 | SubstTemplateTypeParmPackTypeBitfields SubstTemplateTypeParmPackTypeBits; |
1801 | TemplateSpecializationTypeBitfields TemplateSpecializationTypeBits; |
1802 | DependentTemplateSpecializationTypeBitfields |
1803 | DependentTemplateSpecializationTypeBits; |
1804 | PackExpansionTypeBitfields PackExpansionTypeBits; |
1805 | }; |
1806 | |
1807 | private: |
1808 | template <class T> friend class TypePropertyCache; |
1809 | |
1810 | |
1811 | void setFromAST(bool V = true) const { |
1812 | TypeBits.FromAST = V; |
1813 | } |
1814 | |
1815 | protected: |
1816 | friend class ASTContext; |
1817 | |
1818 | Type(TypeClass tc, QualType canon, TypeDependence Dependence) |
1819 | : ExtQualsTypeCommonBase(this, |
1820 | canon.isNull() ? QualType(this_(), 0) : canon) { |
1821 | static_assert(sizeof(*this) <= 8 + sizeof(ExtQualsTypeCommonBase), |
1822 | "changing bitfields changed sizeof(Type)!"); |
1823 | static_assert(alignof(decltype(*this)) % sizeof(void *) == 0, |
1824 | "Insufficient alignment!"); |
1825 | TypeBits.TC = tc; |
1826 | TypeBits.Dependence = static_cast<unsigned>(Dependence); |
1827 | TypeBits.CacheValid = false; |
1828 | TypeBits.CachedLocalOrUnnamed = false; |
1829 | TypeBits.CachedLinkage = NoLinkage; |
1830 | TypeBits.FromAST = false; |
1831 | } |
1832 | |
1833 | |
1834 | Type *this_() { return this; } |
1835 | |
1836 | void setDependence(TypeDependence D) { |
1837 | TypeBits.Dependence = static_cast<unsigned>(D); |
1838 | } |
1839 | |
1840 | void addDependence(TypeDependence D) { setDependence(getDependence() | D); } |
1841 | |
1842 | public: |
1843 | friend class ASTReader; |
1844 | friend class ASTWriter; |
1845 | template <class T> friend class serialization::AbstractTypeReader; |
1846 | template <class T> friend class serialization::AbstractTypeWriter; |
1847 | |
1848 | Type(const Type &) = delete; |
1849 | Type(Type &&) = delete; |
1850 | Type &operator=(const Type &) = delete; |
1851 | Type &operator=(Type &&) = delete; |
1852 | |
1853 | TypeClass getTypeClass() const { return static_cast<TypeClass>(TypeBits.TC); } |
1854 | |
1855 | |
1856 | bool isFromAST() const { return TypeBits.FromAST; } |
1857 | |
1858 | |
1859 | |
1860 | |
1861 | |
1862 | |
1863 | |
1864 | |
1865 | |
1866 | |
1867 | |
1868 | |
1869 | |
1870 | |
1871 | |
1872 | |
1873 | bool containsUnexpandedParameterPack() const { |
1874 | return getDependence() & TypeDependence::UnexpandedPack; |
1875 | } |
1876 | |
1877 | |
1878 | |
1879 | bool isCanonicalUnqualified() const { |
1880 | return CanonicalType == QualType(this, 0); |
1881 | } |
1882 | |
1883 | |
1884 | |
1885 | |
1886 | QualType getLocallyUnqualifiedSingleStepDesugaredType() const; |
1887 | |
1888 | |
1889 | |
1890 | |
1891 | |
1892 | |
1893 | |
1894 | bool isSizelessType() const; |
1895 | bool isSizelessBuiltinType() const; |
1896 | |
1897 | |
1898 | |
1899 | |
1900 | bool isVLSTBuiltinType() const; |
1901 | |
1902 | |
1903 | |
1904 | |
1905 | QualType getSveEltType(const ASTContext &Ctx) const; |
1906 | |
1907 | |
1908 | |
1909 | |
1910 | |
1911 | |
1912 | |
1913 | |
1914 | |
1915 | |
1916 | |
1917 | |
1918 | bool isIncompleteType(NamedDecl **Def = nullptr) const; |
1919 | |
1920 | |
1921 | |
1922 | bool isIncompleteOrObjectType() const { |
1923 | return !isFunctionType(); |
1924 | } |
1925 | |
1926 | |
1927 | bool isObjectType() const { |
1928 | |
1929 | |
1930 | |
1931 | return !isReferenceType() && !isFunctionType() && !isVoidType(); |
1932 | } |
1933 | |
1934 | |
1935 | |
1936 | bool isLiteralType(const ASTContext &Ctx) const; |
1937 | |
1938 | |
1939 | bool isStructuralType() const; |
1940 | |
1941 | |
1942 | |
1943 | bool isStandardLayoutType() const; |
1944 | |
1945 | |
1946 | |
1947 | |
1948 | |
1949 | bool isBuiltinType() const; |
1950 | |
1951 | |
1952 | bool isSpecificBuiltinType(unsigned K) const; |
1953 | |
1954 | |
1955 | |
1956 | |
1957 | bool isPlaceholderType() const; |
1958 | const BuiltinType *getAsPlaceholderType() const; |
1959 | |
1960 | |
1961 | bool isSpecificPlaceholderType(unsigned K) const; |
1962 | |
1963 | |
1964 | |
1965 | bool isNonOverloadPlaceholderType() const; |
1966 | |
1967 | |
1968 | |
1969 | bool isIntegerType() const; |
1970 | bool isEnumeralType() const; |
1971 | |
1972 | |
1973 | bool isScopedEnumeralType() const; |
1974 | bool isBooleanType() const; |
1975 | bool isCharType() const; |
1976 | bool isWideCharType() const; |
1977 | bool isChar8Type() const; |
1978 | bool isChar16Type() const; |
1979 | bool isChar32Type() const; |
1980 | bool isAnyCharacterType() const; |
1981 | bool isIntegralType(const ASTContext &Ctx) const; |
1982 | |
1983 | |
1984 | bool isIntegralOrEnumerationType() const; |
1985 | |
1986 | |
1987 | bool isIntegralOrUnscopedEnumerationType() const; |
1988 | bool isUnscopedEnumerationType() const; |
1989 | |
1990 | |
1991 | bool isRealFloatingType() const; |
1992 | |
1993 | |
1994 | bool isComplexType() const; |
1995 | bool isAnyComplexType() const; |
1996 | bool isFloatingType() const; |
1997 | bool isHalfType() const; |
1998 | bool isFloat16Type() const; |
1999 | bool isBFloat16Type() const; |
2000 | bool isFloat128Type() const; |
2001 | bool isRealType() const; |
2002 | bool isArithmeticType() const; |
2003 | bool isVoidType() const; |
2004 | bool isScalarType() const; |
2005 | bool isAggregateType() const; |
2006 | bool isFundamentalType() const; |
2007 | bool isCompoundType() const; |
2008 | |
2009 | |
2010 | |
2011 | bool isFunctionType() const; |
2012 | bool isFunctionNoProtoType() const { return getAs<FunctionNoProtoType>(); } |
2013 | bool isFunctionProtoType() const { return getAs<FunctionProtoType>(); } |
2014 | bool isPointerType() const; |
2015 | bool isAnyPointerType() const; |
2016 | bool isBlockPointerType() const; |
2017 | bool isVoidPointerType() const; |
2018 | bool isReferenceType() const; |
2019 | bool isLValueReferenceType() const; |
2020 | bool isRValueReferenceType() const; |
2021 | bool isObjectPointerType() const; |
2022 | bool isFunctionPointerType() const; |
2023 | bool isFunctionReferenceType() const; |
2024 | bool isMemberPointerType() const; |
2025 | bool isMemberFunctionPointerType() const; |
2026 | bool isMemberDataPointerType() const; |
2027 | bool isArrayType() const; |
2028 | bool isConstantArrayType() const; |
2029 | bool isIncompleteArrayType() const; |
2030 | bool isVariableArrayType() const; |
2031 | bool isDependentSizedArrayType() const; |
2032 | bool isRecordType() const; |
2033 | bool isClassType() const; |
2034 | bool isStructureType() const; |
2035 | bool isObjCBoxableRecordType() const; |
2036 | bool isInterfaceType() const; |
2037 | bool isStructureOrClassType() const; |
2038 | bool isUnionType() const; |
2039 | bool isComplexIntegerType() const; |
2040 | bool isVectorType() const; |
2041 | bool isExtVectorType() const; |
2042 | bool isMatrixType() const; |
2043 | bool isConstantMatrixType() const; |
2044 | bool isDependentAddressSpaceType() const; |
2045 | bool isObjCObjectPointerType() const; |
2046 | bool isObjCRetainableType() const; |
2047 | bool isObjCLifetimeType() const; |
2048 | bool isObjCIndirectLifetimeType() const; |
2049 | bool isObjCNSObjectType() const; |
2050 | bool isObjCIndependentClassType() const; |
2051 | |
2052 | |
2053 | bool isObjCObjectType() const; |
2054 | bool isObjCQualifiedInterfaceType() const; |
2055 | bool isObjCQualifiedIdType() const; |
2056 | bool isObjCQualifiedClassType() const; |
2057 | bool isObjCObjectOrInterfaceType() const; |
2058 | bool isObjCIdType() const; |
2059 | bool isDecltypeType() const; |
2060 | |
2061 | |
2062 | |
2063 | |
2064 | |
2065 | |
2066 | bool isObjCInertUnsafeUnretainedType() const { |
2067 | return hasAttr(attr::ObjCInertUnsafeUnretained); |
2068 | } |
2069 | |
2070 | |
2071 | |
2072 | |
2073 | |
2074 | |
2075 | |
2076 | |
2077 | bool isObjCIdOrObjectKindOfType(const ASTContext &ctx, |
2078 | const ObjCObjectType *&bound) const; |
2079 | |
2080 | bool isObjCClassType() const; |
2081 | |
2082 | |
2083 | |
2084 | |
2085 | |
2086 | |
2087 | |
2088 | bool isObjCClassOrClassKindOfType() const; |
2089 | |
2090 | bool isBlockCompatibleObjCPointerType(ASTContext &ctx) const; |
2091 | bool isObjCSelType() const; |
2092 | bool isObjCBuiltinType() const; |
2093 | bool isObjCARCBridgableType() const; |
2094 | bool isCARCBridgableType() const; |
2095 | bool isTemplateTypeParmType() const; |
2096 | bool isNullPtrType() const; |
2097 | bool isNothrowT() const; |
2098 | bool isAlignValT() const; |
2099 | bool isStdByteType() const; |
2100 | bool isAtomicType() const; |
2101 | bool isUndeducedAutoType() const; |
2102 | |
2103 | bool isTypedefNameType() const; |
2104 | |
2105 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) \ |
2106 | bool is##Id##Type() const; |
2107 | #include "clang/Basic/OpenCLImageTypes.def" |
2108 | |
2109 | bool isImageType() const; |
2110 | |
2111 | bool isSamplerT() const; |
2112 | bool isEventT() const; |
2113 | bool isClkEventT() const; |
2114 | bool isQueueT() const; |
2115 | bool isReserveIDT() const; |
2116 | |
2117 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) \ |
2118 | bool is##Id##Type() const; |
2119 | #include "clang/Basic/OpenCLExtensionTypes.def" |
2120 | |
2121 | bool isOCLIntelSubgroupAVCType() const; |
2122 | bool isOCLExtOpaqueType() const; |
2123 | |
2124 | bool isPipeType() const; |
2125 | bool isExtIntType() const; |
2126 | bool isOpenCLSpecificType() const; |
2127 | |
2128 | |
2129 | |
2130 | |
2131 | bool isObjCARCImplicitlyUnretainedType() const; |
2132 | |
2133 | |
2134 | bool isCUDADeviceBuiltinSurfaceType() const; |
2135 | |
2136 | bool isCUDADeviceBuiltinTextureType() const; |
2137 | |
2138 | |
2139 | Qualifiers::ObjCLifetime getObjCARCImplicitLifetime() const; |
2140 | |
2141 | enum ScalarTypeKind { |
2142 | STK_CPointer, |
2143 | STK_BlockPointer, |
2144 | STK_ObjCObjectPointer, |
2145 | STK_MemberPointer, |
2146 | STK_Bool, |
2147 | STK_Integral, |
2148 | STK_Floating, |
2149 | STK_IntegralComplex, |
2150 | STK_FloatingComplex, |
2151 | STK_FixedPoint |
2152 | }; |
2153 | |
2154 | |
2155 | ScalarTypeKind getScalarTypeKind() const; |
2156 | |
2157 | TypeDependence getDependence() const { |
2158 | return static_cast<TypeDependence>(TypeBits.Dependence); |
2159 | } |
2160 | |
2161 | |
2162 | bool containsErrors() const { |
2163 | return getDependence() & TypeDependence::Error; |
2164 | } |
2165 | |
2166 | |
2167 | |
2168 | bool isDependentType() const { |
2169 | return getDependence() & TypeDependence::Dependent; |
2170 | } |
2171 | |
2172 | |
2173 | |
2174 | |
2175 | |
2176 | bool isInstantiationDependentType() const { |
2177 | return getDependence() & TypeDependence::Instantiation; |
2178 | } |
2179 | |
2180 | |
2181 | |
2182 | |
2183 | bool isUndeducedType() const; |
2184 | |
2185 | |
2186 | bool isVariablyModifiedType() const { |
2187 | return getDependence() & TypeDependence::VariablyModified; |
2188 | } |
2189 | |
2190 | |
2191 | |
2192 | bool hasSizedVLAType() const; |
2193 | |
2194 | |
2195 | bool hasUnnamedOrLocalType() const; |
2196 | |
2197 | bool isOverloadableType() const; |
2198 | |
2199 | |
2200 | bool isElaboratedTypeSpecifier() const; |
2201 | |
2202 | bool canDecayToPointerType() const; |
2203 | |
2204 | |
2205 | |
2206 | |
2207 | bool hasPointerRepresentation() const; |
2208 | |
2209 | |
2210 | |
2211 | bool hasObjCPointerRepresentation() const; |
2212 | |
2213 | |
2214 | |
2215 | bool hasIntegerRepresentation() const; |
2216 | |
2217 | |
2218 | |
2219 | bool hasSignedIntegerRepresentation() const; |
2220 | |
2221 | |
2222 | |
2223 | bool hasUnsignedIntegerRepresentation() const; |
2224 | |
2225 | |
2226 | |
2227 | bool hasFloatingRepresentation() const; |
2228 | |
2229 | |
2230 | |
2231 | |
2232 | const RecordType *getAsStructureType() const; |
2233 | |
2234 | const RecordType *getAsUnionType() const; |
2235 | const ComplexType *getAsComplexIntegerType() const; |
2236 | const ObjCObjectType *getAsObjCInterfaceType() const; |
2237 | |
2238 | |
2239 | |
2240 | const ObjCObjectPointerType *getAsObjCInterfacePointerType() const; |
2241 | const ObjCObjectPointerType *getAsObjCQualifiedIdType() const; |
2242 | const ObjCObjectPointerType *getAsObjCQualifiedClassType() const; |
2243 | const ObjCObjectType *getAsObjCQualifiedInterfaceType() const; |
2244 | |
2245 | |
2246 | |
2247 | |
2248 | CXXRecordDecl *getAsCXXRecordDecl() const; |
2249 | |
2250 | |
2251 | RecordDecl *getAsRecordDecl() const; |
2252 | |
2253 | |
2254 | |
2255 | |
2256 | TagDecl *getAsTagDecl() const; |
2257 | |
2258 | |
2259 | |
2260 | |
2261 | |
2262 | |
2263 | const CXXRecordDecl *getPointeeCXXRecordDecl() const; |
2264 | |
2265 | |
2266 | |
2267 | |
2268 | DeducedType *getContainedDeducedType() const; |
2269 | |
2270 | |
2271 | |
2272 | |
2273 | AutoType *getContainedAutoType() const { |
2274 | return dyn_cast_or_null<AutoType>(getContainedDeducedType()); |
2275 | } |
2276 | |
2277 | |
2278 | |
2279 | |
2280 | bool hasAutoForTrailingReturnType() const; |
2281 | |
2282 | |
2283 | |
2284 | |
2285 | |
2286 | |
2287 | |
2288 | template <typename T> const T *getAs() const; |
2289 | |
2290 | |
2291 | |
2292 | |
2293 | |
2294 | |
2295 | template <typename T> const T *getAsAdjusted() const; |
2296 | |
2297 | |
2298 | |
2299 | const ArrayType *getAsArrayTypeUnsafe() const; |
2300 | |
2301 | |
2302 | |
2303 | |
2304 | |
2305 | |
2306 | |
2307 | template <typename T> const T *castAs() const; |
2308 | |
2309 | |
2310 | |
2311 | const ArrayType *castAsArrayTypeUnsafe() const; |
2312 | |
2313 | |
2314 | |
2315 | bool hasAttr(attr::Kind AK) const; |
2316 | |
2317 | |
2318 | |
2319 | |
2320 | const Type *getBaseElementTypeUnsafe() const; |
2321 | |
2322 | |
2323 | |
2324 | |
2325 | const Type *getArrayElementTypeNoTypeQual() const; |
2326 | |
2327 | |
2328 | |
2329 | |
2330 | const Type *getPointeeOrArrayElementType() const; |
2331 | |
2332 | |
2333 | |
2334 | QualType getPointeeType() const; |
2335 | |
2336 | |
2337 | |
2338 | const Type *getUnqualifiedDesugaredType() const; |
2339 | |
2340 | |
2341 | bool isPromotableIntegerType() const; |
2342 | |
2343 | |
2344 | |
2345 | |
2346 | bool isSignedIntegerType() const; |
2347 | |
2348 | |
2349 | |
2350 | |
2351 | bool isUnsignedIntegerType() const; |
2352 | |
2353 | |
2354 | |
2355 | bool isSignedIntegerOrEnumerationType() const; |
2356 | |
2357 | |
2358 | |
2359 | bool isUnsignedIntegerOrEnumerationType() const; |
2360 | |
2361 | |
2362 | |
2363 | bool isFixedPointType() const; |
2364 | |
2365 | |
2366 | bool isFixedPointOrIntegerType() const; |
2367 | |
2368 | |
2369 | |
2370 | bool isSaturatedFixedPointType() const; |
2371 | |
2372 | |
2373 | |
2374 | bool isUnsaturatedFixedPointType() const; |
2375 | |
2376 | |
2377 | |
2378 | bool isSignedFixedPointType() const; |
2379 | |
2380 | |
2381 | |
2382 | bool isUnsignedFixedPointType() const; |
2383 | |
2384 | |
2385 | |
2386 | |
2387 | bool isConstantSizeType() const; |
2388 | |
2389 | |
2390 | |
2391 | bool isSpecifierType() const; |
2392 | |
2393 | |
2394 | Linkage getLinkage() const; |
2395 | |
2396 | |
2397 | Visibility getVisibility() const { |
2398 | return getLinkageAndVisibility().getVisibility(); |
2399 | } |
2400 | |
2401 | |
2402 | bool isVisibilityExplicit() const { |
2403 | return getLinkageAndVisibility().isVisibilityExplicit(); |
2404 | } |
2405 | |
2406 | |
2407 | LinkageInfo getLinkageAndVisibility() const; |
2408 | |
2409 | |
2410 | |
2411 | bool isLinkageValid() const; |
2412 | |
2413 | |
2414 | |
2415 | |
2416 | |
2417 | |
2418 | Optional<NullabilityKind> getNullability(const ASTContext &context) const; |
2419 | |
2420 | |
2421 | |
2422 | |
2423 | |
2424 | |
2425 | bool canHaveNullability(bool ResultIfUnknown = true) const; |
2426 | |
2427 | |
2428 | |
2429 | |
2430 | |
2431 | |
2432 | |
2433 | |
2434 | |
2435 | |
2436 | |
2437 | |
2438 | |
2439 | |
2440 | |
2441 | |
2442 | Optional<ArrayRef<QualType>> |
2443 | getObjCSubstitutions(const DeclContext *dc) const; |
2444 | |
2445 | |
2446 | |
2447 | bool acceptsObjCTypeParams() const; |
2448 | |
2449 | const char *getTypeClassName() const; |
2450 | |
2451 | QualType getCanonicalTypeInternal() const { |
2452 | return CanonicalType; |
2453 | } |
2454 | |
2455 | CanQualType getCanonicalTypeUnqualified() const; |
2456 | void dump() const; |
2457 | void dump(llvm::raw_ostream &OS, const ASTContext &Context) const; |
2458 | }; |
2459 | |
2460 | |
2461 | |
2462 | template <> const TypedefType *Type::getAs() const; |
2463 | |
2464 | |
2465 | |
2466 | |
2467 | template <> const TemplateSpecializationType *Type::getAs() const; |
2468 | |
2469 | |
2470 | |
2471 | template <> const AttributedType *Type::getAs() const; |
2472 | |
2473 | |
2474 | |
2475 | #define TYPE(Class, Base) |
2476 | #define LEAF_TYPE(Class) \ |
2477 | template <> inline const Class##Type *Type::getAs() const { \ |
2478 | return dyn_cast<Class##Type>(CanonicalType); \ |
2479 | } \ |
2480 | template <> inline const Class##Type *Type::castAs() const { \ |
2481 | return cast<Class##Type>(CanonicalType); \ |
2482 | } |
2483 | #include "clang/AST/TypeNodes.inc" |
2484 | |
2485 | |
2486 | |
2487 | class BuiltinType : public Type { |
2488 | public: |
2489 | enum Kind { |
2490 | |
2491 | #define IMAGE_TYPE(ImgType, Id, SingletonId, Access, Suffix) Id, |
2492 | #include "clang/Basic/OpenCLImageTypes.def" |
2493 | |
2494 | #define EXT_OPAQUE_TYPE(ExtType, Id, Ext) Id, |
2495 | #include "clang/Basic/OpenCLExtensionTypes.def" |
2496 | |
2497 | #define SVE_TYPE(Name, Id, SingletonId) Id, |
2498 | #include "clang/Basic/AArch64SVEACLETypes.def" |
2499 | |
2500 | #define PPC_VECTOR_TYPE(Name, Id, Size) Id, |
2501 | #include "clang/Basic/PPCTypes.def" |
2502 | |
2503 | #define RVV_TYPE(Name, Id, SingletonId) Id, |
2504 | #include "clang/Basic/RISCVVTypes.def" |
2505 | |
2506 | #define BUILTIN_TYPE(Id, SingletonId) Id, |
2507 | #define LAST_BUILTIN_TYPE(Id) LastKind = Id |
2508 | #include "clang/AST/BuiltinTypes.def" |
2509 | }; |
2510 | |
2511 | private: |
2512 | friend class ASTContext; |
2513 | |
2514 | BuiltinType(Kind K) |
2515 | : Type(Builtin, QualType(), |
2516 | K == Dependent ? TypeDependence::DependentInstantiation |
2517 | : TypeDependence::None) { |
2518 | BuiltinTypeBits.Kind = K; |
2519 | } |
2520 | |
2521 | public: |
2522 | Kind getKind() const { return static_cast<Kind>(BuiltinTypeBits.Kind); } |
2523 | StringRef getName(const PrintingPolicy &Policy) const; |
2524 | |
2525 | const char *getNameAsCString(const PrintingPolicy &Policy) const { |
2526 | |
2527 | StringRef str = getName(Policy); |
2528 | assert(!str.empty() && str.data()[str.size()] == '\0'); |
2529 | return str.data(); |
2530 | } |
2531 | |
2532 | bool isSugared() const { return false; } |
2533 | QualType desugar() const { return QualType(this, 0); } |
2534 | |
2535 | bool isInteger() const { |
2536 | return getKind() >= Bool && getKind() <= Int128; |
2537 | } |
2538 | |
2539 | bool isSignedInteger() const { |
2540 | return getKind() >= Char_S && getKind() <= Int128; |
2541 | } |
2542 | |
2543 | bool isUnsignedInteger() const { |
2544 | return getKind() >= Bool && getKind() <= UInt128; |
2545 | } |
2546 | |
2547 | bool isFloatingPoint() const { |
2548 | return getKind() >= Half && getKind() <= Float128; |
2549 | } |
2550 | |
2551 | |
2552 | static bool isPlaceholderTypeKind(Kind K) { |
2553 | return K >= Overload; |
2554 | } |
2555 | |
2556 | |
2557 | |
2558 | |
2559 | bool isPlaceholderType() const { |
2560 | return isPlaceholderTypeKind(getKind()); |
2561 | } |
2562 | |
2563 | |
2564 | |
2565 | |
2566 | |
2567 | |
2568 | |
2569 | |
2570 | |
2571 | |
2572 | bool isNonOverloadPlaceholderType() const { |
2573 | return getKind() > Overload; |
2574 | } |
2575 | |
2576 | static bool classof(const Type *T) { return T->getTypeClass() == Builtin; } |
2577 | }; |
2578 | |
2579 | |
2580 | |
2581 | class ComplexType : public Type, public llvm::FoldingSetNode { |
2582 | friend class ASTContext; |
2583 | |
2584 | QualType ElementType; |
2585 | |
2586 | ComplexType(QualType Element, QualType CanonicalPtr) |
2587 | : Type(Complex, CanonicalPtr, Element->getDependence()), |
2588 | ElementType(Element) {} |
2589 | |
2590 | public: |
2591 | QualType getElementType() const { return ElementType; } |
2592 | |
2593 | bool isSugared() const { return false; } |
2594 | QualType desugar() const { return QualType(this, 0); } |
2595 | |
2596 | void Profile(llvm::FoldingSetNodeID &ID) { |
2597 | Profile(ID, getElementType()); |
2598 | } |
2599 | |
2600 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Element) { |
2601 | ID.AddPointer(Element.getAsOpaquePtr()); |
2602 | } |
2603 | |
2604 | static bool classof(const Type *T) { return T->getTypeClass() == Complex; } |
2605 | }; |
2606 | |
2607 | |
2608 | class ParenType : public Type, public llvm::FoldingSetNode { |
2609 | friend class ASTContext; |
2610 | |
2611 | QualType Inner; |
2612 | |
2613 | ParenType(QualType InnerType, QualType CanonType) |
2614 | : Type(Paren, CanonType, InnerType->getDependence()), Inner(InnerType) {} |
2615 | |
2616 | public: |
2617 | QualType getInnerType() const { return Inner; } |
2618 | |
2619 | bool isSugared() const { return true; } |
2620 | QualType desugar() const { return getInnerType(); } |
2621 | |
2622 | void Profile(llvm::FoldingSetNodeID &ID) { |
2623 | Profile(ID, getInnerType()); |
2624 | } |
2625 | |
2626 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Inner) { |
2627 | Inner.Profile(ID); |
2628 | } |
2629 | |
2630 | static bool classof(const Type *T) { return T->getTypeClass() == Paren; } |
2631 | }; |
2632 | |
2633 | |
2634 | class PointerType : public Type, public llvm::FoldingSetNode { |
2635 | friend class ASTContext; |
2636 | |
2637 | QualType PointeeType; |
2638 | |
2639 | PointerType(QualType Pointee, QualType CanonicalPtr) |
2640 | : Type(Pointer, CanonicalPtr, Pointee->getDependence()), |
2641 | PointeeType(Pointee) {} |
2642 | |
2643 | public: |
2644 | QualType getPointeeType() const { return PointeeType; } |
2645 | |
2646 | bool isSugared() const { return false; } |
2647 | QualType desugar() const { return QualType(this, 0); } |
2648 | |
2649 | void Profile(llvm::FoldingSetNodeID &ID) { |
2650 | Profile(ID, getPointeeType()); |
2651 | } |
2652 | |
2653 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { |
2654 | ID.AddPointer(Pointee.getAsOpaquePtr()); |
2655 | } |
2656 | |
2657 | static bool classof(const Type *T) { return T->getTypeClass() == Pointer; } |
2658 | }; |
2659 | |
2660 | |
2661 | |
2662 | |
2663 | class AdjustedType : public Type, public llvm::FoldingSetNode { |
2664 | QualType OriginalTy; |
2665 | QualType AdjustedTy; |
2666 | |
2667 | protected: |
2668 | friend class ASTContext; |
2669 | |
2670 | AdjustedType(TypeClass TC, QualType OriginalTy, QualType AdjustedTy, |
2671 | QualType CanonicalPtr) |
2672 | : Type(TC, CanonicalPtr, OriginalTy->getDependence()), |
2673 | OriginalTy(OriginalTy), AdjustedTy(AdjustedTy) {} |
2674 | |
2675 | public: |
2676 | QualType getOriginalType() const { return OriginalTy; } |
2677 | QualType getAdjustedType() const { return AdjustedTy; } |
2678 | |
2679 | bool isSugared() const { return true; } |
2680 | QualType desugar() const { return AdjustedTy; } |
2681 | |
2682 | void Profile(llvm::FoldingSetNodeID &ID) { |
2683 | Profile(ID, OriginalTy, AdjustedTy); |
2684 | } |
2685 | |
2686 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Orig, QualType New) { |
2687 | ID.AddPointer(Orig.getAsOpaquePtr()); |
2688 | ID.AddPointer(New.getAsOpaquePtr()); |
2689 | } |
2690 | |
2691 | static bool classof(const Type *T) { |
2692 | return T->getTypeClass() == Adjusted || T->getTypeClass() == Decayed; |
2693 | } |
2694 | }; |
2695 | |
2696 | |
2697 | class DecayedType : public AdjustedType { |
2698 | friend class ASTContext; |
2699 | |
2700 | inline |
2701 | DecayedType(QualType OriginalType, QualType Decayed, QualType Canonical); |
2702 | |
2703 | public: |
2704 | QualType getDecayedType() const { return getAdjustedType(); } |
2705 | |
2706 | inline QualType getPointeeType() const; |
2707 | |
2708 | static bool classof(const Type *T) { return T->getTypeClass() == Decayed; } |
2709 | }; |
2710 | |
2711 | |
2712 | |
2713 | |
2714 | class BlockPointerType : public Type, public llvm::FoldingSetNode { |
2715 | friend class ASTContext; |
2716 | |
2717 | |
2718 | QualType PointeeType; |
2719 | |
2720 | BlockPointerType(QualType Pointee, QualType CanonicalCls) |
2721 | : Type(BlockPointer, CanonicalCls, Pointee->getDependence()), |
2722 | PointeeType(Pointee) {} |
2723 | |
2724 | public: |
2725 | |
2726 | QualType getPointeeType() const { return PointeeType; } |
2727 | |
2728 | bool isSugared() const { return false; } |
2729 | QualType desugar() const { return QualType(this, 0); } |
2730 | |
2731 | void Profile(llvm::FoldingSetNodeID &ID) { |
2732 | Profile(ID, getPointeeType()); |
2733 | } |
2734 | |
2735 | static void Profile(llvm::FoldingSetNodeID &ID, QualType Pointee) { |
2736 | ID.AddPointer(Pointee.getAsOpaquePtr()); |
2737 | } |
2738 | |
2739 | static bool classof(const Type *T) { |
2740 | return T->getTypeClass() == BlockPointer; |
2741 | } |
2742 | }; |
2743 | |
2744 | |
2745 | class ReferenceType : public Type, public llvm::FoldingSetNode { |
2746 | QualType PointeeType; |
2747 | |
2748 | protected: |
2749 | ReferenceType(TypeClass tc, QualType Referencee, QualType CanonicalRef, |
2750 | bool SpelledAsLValue) |
2751 | : Type(tc, CanonicalRef, Referencee->getDependence()), |
2752 | PointeeType(Referencee) { |
2753 | ReferenceTypeBits.SpelledAsLValue = SpelledAsLValue; |
2754 | ReferenceTypeBits.InnerRef = Referencee->isReferenceType(); |
2755 | } |
2756 | |
2757 | public: |
2758 | bool isSpelledAsLValue() const { return ReferenceTypeBits.SpelledAsLValue; } |
2759 | bool isInnerRef() const { return ReferenceTypeBits.InnerRef; } |
2760 | |
2761 | QualType getPointeeTypeAsWritten() const { return PointeeType; } |
2762 | |
2763 | QualType getPointeeType() const { |
2764 | |
2765 | const ReferenceType *T = this; |
2766 | while (T->isInnerRef()) |
2767 | T = T->PointeeType->castAs<ReferenceType>(); |
2768 | return T->PointeeType; |
2769 | } |
2770 | |
2771 | void Profile(llvm::FoldingSetNodeID &ID) { |
2772 | Profile(ID, PointeeType, isSpelledAsLValue()); |
2773 | } |
2774 | |
2775 | static void Profile(llvm::FoldingSetNodeID &ID, |
2776 | QualType Referencee, |
2777 | bool SpelledAsLValue) { |
2778 | ID.AddPointer(Referencee.getAsOpaquePtr()); |
2779 | ID.AddBoolean(SpelledAsLValue); |
2780 | } |
2781 | |
2782 | static bool classof(const Type *T) { |
2783 | return T->getTypeClass() == LValueReference || |
2784 | T->getTypeClass() == RValueReference; |
2785 | } |
2786 | }; |
2787 | |
2788 | |
2789 | class LValueReferenceType : public ReferenceType { |
2790 | friend class ASTContext; |
2791 | |
2792 | LValueReferenceType(QualType Referencee, QualType CanonicalRef, |
2793 | bool SpelledAsLValue) |
|