24#include "llvm/ADT/STLExtras.h"
64static inline std::optional<unsigned>
69 const std::optional<unsigned> NoLambdaIsCaptureReady;
72 unsigned CurScopeIndex = FunctionScopes.size() - 1;
73 while (CurScopeIndex > 0 && isa<clang::sema::CapturedRegionScopeInfo>(
74 FunctionScopes[CurScopeIndex]))
77 isa<clang::sema::LambdaScopeInfo>(FunctionScopes[CurScopeIndex]) &&
78 "The function on the top of sema's function-info stack must be a lambda");
81 const bool IsCapturingThis = !VarToCapture;
82 const bool IsCapturingVariable = !IsCapturingThis;
86 cast<sema::LambdaScopeInfo>(FunctionScopes[CurScopeIndex])->CallOperator;
90 cast<sema::LambdaScopeInfo>(FunctionScopes[CurScopeIndex]);
98 if (IsCapturingVariable &&
100 return NoLambdaIsCaptureReady;
119 if (IsCapturingVariable && !LSI->
isCaptured(VarToCapture))
120 return NoLambdaIsCaptureReady;
122 return NoLambdaIsCaptureReady;
126 assert(CurScopeIndex);
132 assert(CurScopeIndex < (FunctionScopes.size() - 1));
136 return CurScopeIndex + 1;
137 return NoLambdaIsCaptureReady;
175std::optional<unsigned>
180 const std::optional<unsigned> NoLambdaIsCaptureCapable;
182 const std::optional<unsigned> OptionalStackIndex =
185 if (!OptionalStackIndex)
186 return NoLambdaIsCaptureCapable;
188 const unsigned IndexOfCaptureReadyLambda = *OptionalStackIndex;
189 assert(((IndexOfCaptureReadyLambda != (FunctionScopes.size() - 1)) ||
191 "The capture ready lambda for a potential capture can only be the "
192 "current lambda if it is a generic lambda");
195 cast<sema::LambdaScopeInfo>(FunctionScopes[IndexOfCaptureReadyLambda]);
198 const bool IsCapturingThis = !VarToCapture;
199 const bool IsCapturingVariable = !IsCapturingThis;
201 if (IsCapturingVariable) {
206 const bool CanCaptureVariable =
212 DeclRefType, &IndexOfCaptureReadyLambda);
213 if (!CanCaptureVariable)
214 return NoLambdaIsCaptureCapable;
219 const bool CanCaptureThis =
223 &IndexOfCaptureReadyLambda);
225 return NoLambdaIsCaptureCapable;
227 return IndexOfCaptureReadyLambda;
246 unsigned LambdaDependencyKind,
252 bool IsGenericLambda =
257 IsGenericLambda, CaptureDefault);
267 if (
const FunctionDecl *FD = dyn_cast<FunctionDecl>(DC))
277std::tuple<MangleNumberingContext *, Decl *>
292 bool IsInNonspecializedTemplate =
298 if (ManglingContextDecl) {
299 if (
ParmVarDecl *Param = dyn_cast<ParmVarDecl>(ManglingContextDecl)) {
302 if (LexicalDC->isRecord())
304 }
else if (
VarDecl *Var = dyn_cast<VarDecl>(ManglingContextDecl)) {
305 if (Var->getMostRecentDecl()->isInline())
306 Kind = InlineVariable;
307 else if (Var->getDeclContext()->isRecord() && IsInNonspecializedTemplate)
308 Kind = TemplatedVariable;
309 else if (Var->getDescribedVarTemplate())
310 Kind = TemplatedVariable;
311 else if (
auto *VTS = dyn_cast<VarTemplateSpecializationDecl>(Var)) {
312 if (!VTS->isExplicitSpecialization())
313 Kind = TemplatedVariable;
315 }
else if (isa<FieldDecl>(ManglingContextDecl)) {
317 }
else if (isa<ImplicitConceptSpecializationDecl>(ManglingContextDecl)) {
328 if ((IsInNonspecializedTemplate &&
329 !(ManglingContextDecl && isa<ParmVarDecl>(ManglingContextDecl))) ||
331 while (
auto *CD = dyn_cast<CapturedDecl>(DC))
336 return std::make_tuple(
nullptr,
nullptr);
349 case TemplatedVariable:
351 return std::make_tuple(
353 ManglingContextDecl),
354 ManglingContextDecl);
357 llvm_unreachable(
"unexpected context");
364 assert(MethodTypeInfo &&
"expected a non null type");
370 if (
Class->isDependentContext() || TemplateParams) {
373 if (
Result->isUndeducedType()) {
404 if (LambdaType == ExplicitObjectParameterType)
409 diag::err_invalid_explicit_object_type_in_lambda)
410 << ExplicitObjectParameterType;
415 std::optional<CXXRecordDecl::LambdaNumbering> NumberingOverride) {
416 if (NumberingOverride) {
417 Class->setLambdaNumbering(*NumberingOverride);
423 auto getMangleNumberingContext =
427 if (ManglingContextDecl)
431 auto DC =
Class->getDeclContext();
432 while (
auto *CD = dyn_cast<CapturedDecl>(DC))
433 DC = CD->getParent();
451 assert(MCtx &&
"Retrieving mangle numbering context failed!");
458 Class->setLambdaNumbering(Numbering);
462 Source->AssignedLambdaNumbering(
Class);
468 bool ExplicitResultType) {
469 if (ExplicitResultType) {
474 diag::err_lambda_incomplete_result);
484 bool ExplicitParams,
bool Mutable) {
487 LSI->
Lambda = LambdaClass;
507 assert(LSI &&
"Expected a lambda scope");
509 "Already acted on explicit template parameters");
511 "Explicit template parameters should come "
512 "before invented (auto) ones");
513 assert(!TParams.empty() &&
514 "No template parameters to act on");
536 = dyn_cast<EnumConstantDecl>(DRE->getDecl())) {
537 return cast<EnumDecl>(D->getDeclContext());
545 if (BO->getOpcode() == BO_Comma)
552 if (
StmtExpr *SE = dyn_cast<StmtExpr>(E)) {
553 if (
Expr *last = dyn_cast_or_null<Expr>(SE->getSubStmt()->body_back()))
574 if (ICE->getCastKind() == CK_IntegralCast)
582 return ET->getDecl();
605 if (!ED)
return nullptr;
608 for (++i; i != e; ++i) {
624 i = returns.begin(), e = returns.end(); i != e; ++i) {
653 "lambda expressions use auto deduction in C++14 onwards");
690 assert(!CSI.
ReturnType.
isNull() &&
"We should have a tentative return type.");
696 assert(isa<BlockScopeInfo>(CSI));
725 if (BlockNullability &&
726 (!RetTyNullability ||
735 diag::err_typecheck_missing_return_type_incompatible)
736 << ReturnType << CSI.
ReturnType << isa<LambdaScopeInfo>(CSI);
753 assert(!DeductType.
isNull() &&
"can't build reference to auto");
757 if (
Init->containsUnexpandedParameterPack()) {
759 ? diag::warn_cxx17_compat_init_capture_pack
760 : diag::ext_init_capture_pack);
788 Loc,
Init->getBeginLoc(),
Init->getEndLoc())
814 PETL.setEllipsisLoc(EllipsisLoc);
821 InitCaptureType, TSI,
SC_Auto);
834 assert(Var->
isInitCapture() &&
"init capture flag should be set");
877 bool &ExplicitResultType) {
879 ExplicitResultType =
false;
885 "Unexpected storage specifier");
886 bool IsLambdaStatic =
899 bool HasExplicitObjectParameter =
904 !HasExplicitObjectParameter)
915 diag::err_return_value_with_address_space);
920 assert(MethodTyInfo &&
"no type from lambda-declarator");
958 assert(TemplateParams &&
"no template parameters");
961 TemplateParams, CallOperator);
971 bool HasExplicitResultType) {
975 if (TrailingRequiresClause)
983 if (TemplateParams) {
986 assert(TemplateMethod &&
987 "AddTemplateParametersToLambdaCallOperator should have been called");
1002 TemplateParams, MethodTyInfo));
1005 if (!Params.empty()) {
1009 assert(
P &&
"null in a parameter list");
1010 P->setOwningFunction(Method);
1018 Scope *CurrentScope) {
1021 assert(LSI &&
"LambdaScopeInfo should be on stack!");
1039 assert(TemplateParamScope &&
1040 "Lambda with explicit template param list should establish a "
1041 "template param scope");
1042 assert(TemplateParamScope->
getParent());
1050 Intro.
Range,
nullptr, LambdaDependencyKind, Intro.
Default);
1059 bool ContainsUnexpandedParameterPack =
false;
1062 llvm::DenseMap<IdentifierInfo *, ValueDecl *> CaptureNames;
1068 PrevCaptureLoc =
C->Loc, ++
C) {
1072 ? diag::ext_star_this_lambda_capture_cxx17
1073 : diag::warn_cxx14_compat_star_this_lambda_capture);
1079 Diag(
C->Loc, diag::err_capture_more_than_once)
1093 ? diag::ext_equals_this_lambda_capture_cxx20
1094 : diag::warn_cxx17_compat_equals_this_lambda_capture);
1100 if (ThisCaptureType.
isNull()) {
1101 Diag(
C->Loc, diag::err_this_capture) <<
true;
1113 assert(
C->Id &&
"missing identifier for capture");
1115 if (
C->Init.isInvalid())
1119 if (
C->Init.isUsable()) {
1121 ? diag::warn_cxx11_compat_init_capture
1122 : diag::ext_init_capture);
1129 if (
C->InitCaptureType.get().isNull())
1132 if (
C->Init.get()->containsUnexpandedParameterPack() &&
1137 switch (
C->InitKind) {
1139 llvm_unreachable(
"not an init-capture?");
1151 C->EllipsisLoc,
C->Id, InitStyle,
1152 C->Init.get(), Method);
1153 assert(Var &&
"createLambdaInitCaptureVarDecl returned a null VarDecl?");
1154 if (
auto *
V = dyn_cast<VarDecl>(Var))
1159 "init capture has valid but null init?");
1167 Diag(
C->Loc, diag::err_reference_capture_with_reference_default)
1172 Diag(
C->Loc, diag::err_copy_capture_with_copy_default)
1207 Diag(
C->Loc, diag::err_capture_does_not_name_variable) <<
C->Id;
1214 if (
auto [It, Inserted] = CaptureNames.insert(std::pair{C->Id, Var});
1218 Diag(
C->Loc, diag::err_capture_more_than_once)
1219 <<
C->Id << It->second->getBeginLoc()
1228 Diag(
C->Loc, diag::err_capture_more_than_once) <<
C->Id;
1240 Diag(
C->Loc, diag::err_capture_non_automatic_variable) <<
C->Id;
1248 if (
C->EllipsisLoc.isValid()) {
1250 EllipsisLoc =
C->EllipsisLoc;
1252 Diag(
C->EllipsisLoc, diag::err_pack_expansion_without_parameter_packs)
1253 << (
C->Init.isUsable() ?
C->Init.get()->getSourceRange()
1259 ContainsUnexpandedParameterPack =
true;
1262 if (
C->Init.isUsable()) {
1310 auto *Param = cast<ParmVarDecl>(
P.Param);
1312 if (Param->getIdentifier())
1322 if (TemplateParams) {
1338 bool ExplicitResultType;
1363 Params.reserve(Params.size());
1364 for (
unsigned I = 0; I < FTI.NumParams; ++I) {
1365 auto *Param = cast<ParmVarDecl>(FTI.Params[I].Param);
1366 Param->setScopeInfo(0, Params.size());
1367 Params.push_back(Param);
1371 bool IsLambdaStatic =
1405 if (!
C.isVariableCapture())
1413 auto CheckRedefinition = [&](
ParmVarDecl *Param) {
1415 if (
Capture.Id == Param->getIdentifier()) {
1416 Diag(Param->getLocation(), diag::err_parameter_shadow_capture);
1417 Diag(
Capture.Loc, diag::note_var_explicitly_captured_here)
1426 if (!
P->getIdentifier())
1428 if (CheckRedefinition(
P))
1440 if (TemplateParams) {
1441 for (
const auto *TP : TemplateParams->
asArray()) {
1442 if (!TP->getIdentifier())
1445 if (
Capture.Id == TP->getIdentifier()) {
1480 Diag(TRC->getBeginLoc(), diag::err_constrained_non_templated_function);
1497 bool IsInstantiation) {
1505 if (!IsInstantiation)
1510 Class->setInvalidDecl();
1519template <
typename Func>
1543 DefaultFree, DefaultMember, CallOpCC};
1545 llvm::iterator_range<CallingConv *> Range(
1546 std::begin(Convs), std::unique(std::begin(Convs), std::end(Convs)));
1556 if (CallOpCC == DefaultMember && DefaultMember != DefaultFree) {
1578 if (CallOpCC == DefaultMember && DefaultMember != DefaultFree)
1591 "Lambda's call operator should not have a reference qualifier");
1604 auto HasPassObjectSizeAttr = [](
const ParmVarDecl *
P) {
1605 return P->hasAttr<PassObjectSizeAttr>();
1607 if (llvm::any_of(CallOperator->
parameters(), HasPassObjectSizeAttr))
1677 for (
unsigned I = 0, N = CallOperator->
getNumParams(); I != N; ++I) {
1687 CallOpConvTL.setParam(I, From);
1688 CallOpConvNameTL.setParam(I, From);
1707 if (
Class->isGenericLambda()) {
1714 Loc, ConversionName,
1720 Class->addDecl(ConversionTemplate);
1722 Class->addDecl(Conversion);
1748 for (
unsigned I = 0, N = CallOperator->
getNumParams(); I != N; ++I)
1749 InvokerParams[I]->setOwningFunction(Invoke);
1753 if (
Class->isGenericLambda()) {
1763 Class->addDecl(StaticInvokerTemplate);
1765 Class->addDecl(Invoke);
1821 Class->addDecl(Conversion);
1826 bool IsOpenMPMapping) {
1833 return cast<VarDecl>(Cap.
getVariable())->getInit();
1873 if (IsOpenMPMapping)
1876 if (
Init.isInvalid())
1885 return InitSeq.
Perform(*
this, Entity, InitKind, InitExpr);
1905 llvm_unreachable(
"block capture in lambda");
1907 llvm_unreachable(
"Unknown implicit capture style");
1929 return !RD->isCompleteDefinition() || !RD->hasTrivialCopyConstructor() ||
1930 !RD->hasTrivialDestructor();
1949 auto diag =
Diag(From.
getLocation(), diag::warn_unused_lambda_capture);
1969 if (Var && Var->isInitCapture())
1970 TSI = Var->getTypeSourceInfo();
1981 nullptr, FieldType, TSI,
nullptr,
1987 diag::err_field_incomplete_or_sizeless)) {
1989 Field->setInvalidDecl();
1995 Field->setInvalidDecl();
1999 Field->setImplicit(
true);
2020 bool ExplicitParams;
2021 bool ExplicitResultType;
2023 bool ContainsUnexpandedParameterPack;
2024 bool IsGenericLambda;
2033 IsGenericLambda =
Class->isGenericLambda();
2036 Decl *TemplateOrNonTemplateCallOperatorDecl =
2039 : cast<Decl>(CallOperator);
2048 bool CurHasPreviousCapture = CaptureDefault !=
LCD_None;
2050 CaptureDefaultLoc : IntroducerRange.
getBegin();
2052 for (
unsigned I = 0, N = LSI->
Captures.size(); I != N; ++I) {
2058 assert(!From.
isBlockCapture() &&
"Cannot capture __block variables");
2067 bool IsCaptureUsed =
true;
2072 bool NonODRUsedInitCapture =
2074 if (!NonODRUsedInitCapture) {
2078 if (!CurHasPreviousCapture && !IsLast) {
2095 CurHasPreviousCapture |= IsCaptureUsed;
2096 PrevCaptureLoc = CaptureRange.
getEnd();
2108 Diag(CaptureDefaultLoc, diag::note_deprecated_this_capture)
2136 CaptureInits.push_back(
Init.get());
2149 if (Captures.empty() && CaptureDefault ==
LCD_None)
2172 CaptureDefault, CaptureDefaultLoc,
2173 ExplicitParams, ExplicitResultType,
2174 CaptureInits, EndLoc,
2175 ContainsUnexpandedParameterPack);
2181 !isa<CoroutineBodyStmt>(CallOperator->
getBody()) &&
2182 !
Class->getDeclContext()->isDependentContext()) {
2235 = cast<CXXMethodDecl>(
2243 CurrentLocation, Src);
2244 if (!
Init.isInvalid())
2247 if (
Init.isInvalid())
2256 Block->setBlockMissingReturnType(
false);
2260 for (
unsigned I = 0, N = CallOperator->
getNumParams(); I != N; ++I) {
2268 Block->setParams(BlockParams);
2270 Block->setIsConversionFromLambda(
true);
2278 ConvLocation,
nullptr,
2331 SemaRef.addInstantiatedCapturesToScope(FD, Pattern,
Scope, MLTAL);
2334 while (ShouldAddDeclsFromParentScope) {
2341 if (!FD || !Pattern)
2344 SemaRef.addInstantiatedParametersToScope(ParentFD, Pattern,
Scope, MLTAL);
2345 SemaRef.addInstantiatedLocalVarsToScope(ParentFD, Pattern,
Scope);
This file provides some common utility functions for processing Lambda related AST Constructs.
Defines the clang::Expr interface and subclasses for C++ expressions.
static LambdaCaptureDefault mapImplicitCaptureStyle(CapturingScopeInfo::ImplicitCaptureStyle ICS)
static CallingConv getLambdaConversionFunctionCallConv(Sema &S, const FunctionProtoType *CallOpProto)
static EnumDecl * findEnumForBlockReturn(Expr *E)
If this expression is an enumerator-like expression of some type T, return the type T; otherwise,...
static EnumDecl * findCommonEnumForBlockReturns(ArrayRef< ReturnStmt * > returns)
Attempt to find a common type T for which all of the returned expressions in a block are enumerator-l...
static TypeSourceInfo * getLambdaType(Sema &S, LambdaIntroducer &Intro, Declarator &ParamInfo, Scope *CurScope, SourceLocation Loc, bool &ExplicitResultType)
static std::optional< unsigned > getStackIndexOfNearestEnclosingCaptureReadyLambda(ArrayRef< const clang::sema::FunctionScopeInfo * > FunctionScopes, ValueDecl *VarToCapture)
Examines the FunctionScopeInfo stack to determine the nearest enclosing lambda (to the current lambda...
static FunctionDecl * getPatternFunctionDecl(FunctionDecl *FD)
static LambdaScopeInfo * getCurrentLambdaScopeUnsafe(Sema &S)
static void adjustBlockReturnsToEnum(Sema &S, ArrayRef< ReturnStmt * > returns, QualType returnType)
Adjust the given return statements so that they formally return the given type.
static TemplateParameterList * getGenericLambdaTemplateParameterList(LambdaScopeInfo *LSI, Sema &SemaRef)
static void addBlockPointerConversion(Sema &S, SourceRange IntroducerRange, CXXRecordDecl *Class, CXXMethodDecl *CallOperator)
Add a lambda's conversion to block pointer.
static void buildLambdaScopeReturnType(Sema &S, LambdaScopeInfo *LSI, CXXMethodDecl *CallOperator, bool ExplicitResultType)
static TypeSourceInfo * getDummyLambdaType(Sema &S, SourceLocation Loc=SourceLocation())
static QualType buildTypeForLambdaCallOperator(Sema &S, clang::CXXRecordDecl *Class, TemplateParameterList *TemplateParams, TypeSourceInfo *MethodTypeInfo)
static bool isInInlineFunction(const DeclContext *DC)
Determine whether the given context is or is enclosed in an inline function.
static void addFunctionPointerConversions(Sema &S, SourceRange IntroducerRange, CXXRecordDecl *Class, CXXMethodDecl *CallOperator)
Add a lambda's conversion to function pointers, as described in C++11 [expr.prim.lambda]p6.
static void repeatForLambdaConversionFunctionCallingConvs(Sema &S, const FunctionProtoType &CallOpProto, Func F)
static void addFunctionPointerConversion(Sema &S, SourceRange IntroducerRange, CXXRecordDecl *Class, CXXMethodDecl *CallOperator, QualType InvokerFunctionTy)
Add a lambda's conversion to function pointer, as described in C++11 [expr.prim.lambda]p6.
This file provides some common utility functions for processing Lambdas.
Holds long-lived AST nodes (such as types and decls) that can be referred to throughout the semantic ...
TranslationUnitDecl * getTranslationUnitDecl() const
CanQualType getCanonicalFunctionResultType(QualType ResultType) const
Adjust the given function result type.
QualType getBlockPointerType(QualType T) const
Return the uniqued reference to the type for a block of the specified type.
DeclarationNameTable DeclarationNames
QualType getRecordType(const RecordDecl *Decl) const
QualType getPackExpansionType(QualType Pattern, std::optional< unsigned > NumExpansions, bool ExpectPackInType=true)
Form a pack expansion type with the given pattern.
CanQualType getCanonicalType(QualType T) const
Return the canonical (structural) type corresponding to the specified potentially non-canonical type ...
bool hasSameType(QualType T1, QualType T2) const
Determine whether the given types T1 and T2 are equivalent.
CallingConv getDefaultCallingConvention(bool IsVariadic, bool IsCXXMethod, bool IsBuiltin=false) const
Retrieves the default calling convention for the current target.
QualType getPointerType(QualType T) const
Return the uniqued reference to the type for a pointer to the specified type.
QualType getTypeDeclType(const TypeDecl *Decl, const TypeDecl *PrevDecl=nullptr) const
Return the unique reference to the type for the specified type declaration.
TypeSourceInfo * getTrivialTypeSourceInfo(QualType T, SourceLocation Loc=SourceLocation()) const
Allocate a TypeSourceInfo where all locations have been initialized to a given location,...
MangleNumberingContext & getManglingNumberContext(const DeclContext *DC)
Retrieve the context for computing mangling numbers in the given DeclContext.
QualType getFunctionType(QualType ResultTy, ArrayRef< QualType > Args, const FunctionProtoType::ExtProtoInfo &EPI) const
Return a normal function type with a typed argument list.
const TargetInfo & getTargetInfo() const
QualType getAutoDeductType() const
C++11 deduction pattern for 'auto' type.
ExternalASTSource * getExternalSource() const
Retrieve a pointer to the external AST source associated with this AST context, if any.
Attr - This represents one attribute.
A builtin binary operation expression such as "x + y" or "x <= y".
A binding in a decomposition declaration.
A class which contains all the information about a particular captured value.
Represents a block literal declaration, which is like an unnamed FunctionDecl.
static BlockDecl * Create(ASTContext &C, DeclContext *DC, SourceLocation L)
BlockExpr - Adaptor class for mixing a BlockDecl with expressions.
Represents a C++ conversion function within a class.
static CXXConversionDecl * Create(ASTContext &C, CXXRecordDecl *RD, SourceLocation StartLoc, const DeclarationNameInfo &NameInfo, QualType T, TypeSourceInfo *TInfo, bool UsesFPIntrin, bool isInline, ExplicitSpecifier ES, ConstexprSpecKind ConstexprKind, SourceLocation EndLocation, Expr *TrailingRequiresClause=nullptr)
QualType getConversionType() const
Returns the type that this conversion function is converting to.
Represents a static or instance method of a struct/union/class.
bool isImplicitObjectMemberFunction() const
[C++2b][dcl.fct]/p7 An implicit object member function is a non-static member function without an exp...
const CXXRecordDecl * getParent() const
Return the parent of this method declaration, which is the class in which this method is defined.
static CXXMethodDecl * Create(ASTContext &C, CXXRecordDecl *RD, SourceLocation StartLoc, const DeclarationNameInfo &NameInfo, QualType T, TypeSourceInfo *TInfo, StorageClass SC, bool UsesFPIntrin, bool isInline, ConstexprSpecKind ConstexprKind, SourceLocation EndLocation, Expr *TrailingRequiresClause=nullptr)
Represents a C++ struct/union/class.
void setLambdaTypeInfo(TypeSourceInfo *TS)
void setLambdaIsGeneric(bool IsGeneric)
static CXXRecordDecl * CreateLambda(const ASTContext &C, DeclContext *DC, TypeSourceInfo *Info, SourceLocation Loc, unsigned DependencyKind, bool IsGeneric, LambdaCaptureDefault CaptureDefault)
bool isCapturelessLambda() const
Represents a C++ nested-name-specifier or a global scope specifier.
void mergeFrom(CleanupInfo Rhs)
void setExprNeedsCleanups(bool SideEffects)
CompoundStmt - This represents a group of statements like { stmt stmt }.
ConditionalOperator - The ?: ternary operator.
DeclContext - This is used only as base class of specific decl types that can act as declaration cont...
DeclContext * getParent()
getParent - Returns the containing DeclContext.
bool Equals(const DeclContext *DC) const
Determine whether this declaration context is equivalent to the declaration context DC.
bool isFileContext() const
bool isDependentContext() const
Determines whether this context is dependent on a template parameter.
DeclContext * getLexicalParent()
getLexicalParent - Returns the containing lexical DeclContext.
lookup_result lookup(DeclarationName Name) const
lookup - Find the declarations (if any) with the given Name in this context.
bool isTranslationUnit() const
void addDecl(Decl *D)
Add the declaration D into this context.
bool isFunctionOrMethod() const
Simple template class for restricting typo correction candidates to ones having a single Decl* of the...
A reference to a declared variable, function, enum, etc.
Captures information about "declaration specifiers".
SCS getStorageClassSpec() const
bool SetTypeQual(TQ T, SourceLocation Loc)
ConstexprSpecKind getConstexprSpecifier() const
Decl - This represents one declaration (or definition), e.g.
bool isParameterPack() const
Whether this declaration is a parameter pack.
void setInvalidDecl(bool Invalid=true)
setInvalidDecl - Indicates the Decl had a semantic error.
void markUsed(ASTContext &C)
Mark the declaration used, in the sense of odr-use.
bool isTemplated() const
Determine whether this declaration is a templated entity (whether it is.
bool isInvalidDecl() const
void setAccess(AccessSpecifier AS)
SourceLocation getLocation() const
void setImplicit(bool I=true)
void setReferenced(bool R=true)
void setLocation(SourceLocation L)
DeclContext * getDeclContext()
DeclContext * getLexicalDeclContext()
getLexicalDeclContext - The declaration context where this Decl was lexically declared (LexicalDC).
void setLexicalDeclContext(DeclContext *DC)
DeclarationNameLoc - Additional source/type location info for a declaration name.
static DeclarationNameLoc makeNamedTypeLoc(TypeSourceInfo *TInfo)
Construct location information for a constructor, destructor or conversion operator.
static DeclarationNameLoc makeCXXOperatorNameLoc(SourceLocation BeginLoc, SourceLocation EndLoc)
Construct location information for a non-literal C++ operator.
The name of a declaration.
void setInnerLocStart(SourceLocation L)
SourceLocation getBeginLoc() const LLVM_READONLY
void setTypeSourceInfo(TypeSourceInfo *TI)
void setTrailingRequiresClause(Expr *TrailingRequiresClause)
Expr * getTrailingRequiresClause()
Get the constraint-expression introduced by the trailing requires-clause in the function/member decla...
TypeSourceInfo * getTypeSourceInfo() const
Information about one declarator, including the parsed type information and the identifier.
bool isFunctionDeclarator(unsigned &idx) const
isFunctionDeclarator - This method returns true if the declarator is a function declarator (looking t...
const DeclaratorChunk & getTypeObject(unsigned i) const
Return the specified TypeInfo from this declarator.
const DeclSpec & getDeclSpec() const
getDeclSpec - Return the declaration-specifier that this declarator was declared with.
Expr * getTrailingRequiresClause()
Sets a trailing requires clause for this declarator.
unsigned getNumTypeObjects() const
Return the number of types applied to this declarator.
bool isExplicitObjectMemberFunction()
SourceRange getSourceRange() const LLVM_READONLY
Get the source range that spans this declarator.
DeclaratorChunk::FunctionTypeInfo & getFunctionTypeInfo()
getFunctionTypeInfo - Retrieves the function type info object (looking through parentheses).
Common base class for placeholders for types that get replaced by placeholder type deduction: C++11 a...
An instance of this object exists for each enum constant that is defined.
A helper class that allows the use of isa/cast/dyncast to detect TagType objects of enums.
Store information needed for an explicit specifier.
Represents an expression – generally a full-expression – that introduces cleanups to be run at the en...
This represents one expression.
Expr * IgnoreParens() LLVM_READONLY
Skip past any parentheses which might surround this expression until reaching a fixed point.
Represents difference between two FPOptions values.
bool isFPConstrained() const
Represents a member of a struct/union/class.
static FieldDecl * Create(const ASTContext &C, DeclContext *DC, SourceLocation StartLoc, SourceLocation IdLoc, IdentifierInfo *Id, QualType T, TypeSourceInfo *TInfo, Expr *BW, bool Mutable, InClassInitStyle InitStyle)
static FixItHint CreateRemoval(CharSourceRange RemoveRange)
Create a code modification hint that removes the given source range.
static FixItHint CreateInsertion(SourceLocation InsertionLoc, StringRef Code, bool BeforePreviousInsertions=false)
Create a code modification hint that inserts the given code string at a specific location.
void setSubExpr(Expr *E)
As with any mutator of the AST, be very careful when modifying an existing AST to preserve its invari...
const Expr * getSubExpr() const
Represents a function declaration or definition.
const ParmVarDecl * getParamDecl(unsigned i) const
Stmt * getBody(const FunctionDecl *&Definition) const
Retrieve the body (definition) of the function.
ConstexprSpecKind getConstexprKind() const
void setDescribedFunctionTemplate(FunctionTemplateDecl *Template)
FunctionTemplateDecl * getDescribedFunctionTemplate() const
Retrieves the function template that is described by this function declaration.
QualType getReturnType() const
ArrayRef< ParmVarDecl * > parameters() const
FunctionTemplateDecl * getPrimaryTemplate() const
Retrieve the primary template that this function template specialization either specializes or was in...
bool isVariadic() const
Whether this function is variadic.
@ TK_MemberSpecialization
@ TK_DependentNonTemplate
TemplatedKind getTemplatedKind() const
What kind of templated function this is.
bool isConstexpr() const
Whether this is a (C++11) constexpr function or constexpr constructor.
bool isImmediateEscalating() const
FunctionDecl * getInstantiatedFromDecl() const
void setConstexprKind(ConstexprSpecKind CSK)
void setStorageClass(StorageClass SClass)
Sets the storage class as written in the source.
FunctionDecl * getInstantiatedFromMemberFunction() const
If this function is an instantiation of a member function of a class template specialization,...
unsigned getNumParams() const
Return the number of parameters this function must have based on its FunctionType.
void setParams(ArrayRef< ParmVarDecl * > NewParamInfo)
Represents a prototype with parameter type info, e.g.
bool isVariadic() const
Whether this function prototype is variadic.
ExtProtoInfo getExtProtoInfo() const
ArrayRef< QualType > getParamTypes() const
Declaration of a template function.
FunctionDecl * getTemplatedDecl() const
Get the underlying function declaration of the template.
FunctionTemplateDecl * getInstantiatedFromMemberTemplate() const
static FunctionTemplateDecl * Create(ASTContext &C, DeclContext *DC, SourceLocation L, DeclarationName Name, TemplateParameterList *Params, NamedDecl *Decl)
Create a function template node.
TypeLoc getReturnLoc() const
ExtInfo withCallingConv(CallingConv cc) const
CallingConv getCallConv() const
QualType getReturnType() const
One of these records is kept for each identifier that is lexed.
IdentifierInfo & get(StringRef Name)
Return the identifier token info for the specified named identifier.
ImplicitCastExpr - Allows us to explicitly represent implicit type conversions, which have no direct ...
static ImplicitCastExpr * Create(const ASTContext &Context, QualType T, CastKind Kind, Expr *Operand, const CXXCastPath *BasePath, ExprValueKind Cat, FPOptionsOverride FPO)
Describes the kind of initialization being performed, along with location information for tokens rela...
static InitializationKind CreateDirect(SourceLocation InitLoc, SourceLocation LParenLoc, SourceLocation RParenLoc)
Create a direct initialization.
static InitializationKind CreateCopy(SourceLocation InitLoc, SourceLocation EqualLoc, bool AllowExplicitConvs=false)
Create a copy initialization.
static InitializationKind CreateDirectList(SourceLocation InitLoc)
Describes the sequence of initializations required to initialize a given object or reference with a s...
ExprResult Perform(Sema &S, const InitializedEntity &Entity, const InitializationKind &Kind, MultiExprArg Args, QualType *ResultType=nullptr)
Perform the actual initialization of the given entity based on the computed initialization sequence.
Describes an entity that is being initialized.
static InitializedEntity InitializeLambdaToBlock(SourceLocation BlockVarLoc, QualType Type)
static InitializedEntity InitializeLambdaCapture(IdentifierInfo *VarID, QualType FieldType, SourceLocation Loc)
Create the initialization entity for a lambda capture.
Describes the capture of a variable or of this, or of a C++1y init-capture.
A C++ lambda expression, which produces a function object (of unspecified type) that can be invoked l...
static LambdaExpr * Create(const ASTContext &C, CXXRecordDecl *Class, SourceRange IntroducerRange, LambdaCaptureDefault CaptureDefault, SourceLocation CaptureDefaultLoc, bool ExplicitParams, bool ExplicitResultType, ArrayRef< Expr * > CaptureInits, SourceLocation ClosingBrace, bool ContainsUnexpandedParameterPack)
Construct a new lambda expression.
A stack-allocated class that identifies which local variable declaration instantiations are present i...
Represents the results of name lookup.
DeclClass * getAsSingle() const
bool empty() const
Return true if no decls were found.
Keeps track of the mangled names of lambda expressions and block literals within a particular context...
virtual unsigned getManglingNumber(const CXXMethodDecl *CallOperator)=0
Retrieve the mangling number of a new lambda expression with the given call operator within this cont...
unsigned getNextLambdaIndex()
virtual unsigned getDeviceManglingNumber(const CXXMethodDecl *)
Retrieve the mangling number of a new lambda expression with the given call operator within the devic...
Data structure that captures multiple levels of template argument lists for use in template instantia...
This represents a decl that may have a name.
IdentifierInfo * getIdentifier() const
Get the identifier that names this declaration, if there is one.
bool isPlaceholderVar(const LangOptions &LangOpts) const
DeclarationName getDeclName() const
Get the actual, stored name of the declaration, which may be a special name.
Represents a pack expansion of types.
unsigned getNumExprs() const
Return the number of expressions in this paren list.
Represents a parameter to a function.
static ParmVarDecl * Create(ASTContext &C, DeclContext *DC, SourceLocation StartLoc, SourceLocation IdLoc, IdentifierInfo *Id, QualType T, TypeSourceInfo *TInfo, StorageClass S, Expr *DefArg)
Wrapper for source info for pointers.
A (possibly-)qualified type.
bool isVolatileQualified() const
Determine whether this type is volatile-qualified.
QualType getDesugaredType(const ASTContext &Context) const
Return the specified type with any "sugar" removed from the type.
bool isNull() const
Return true if this QualType doesn't point to a type yet.
LangAS getAddressSpace() const
Return the address space of this type.
QualType getNonReferenceType() const
If Type is a reference type (e.g., const int&), returns the type that the reference refers to ("const...
QualType getUnqualifiedType() const
Retrieve the unqualified variant of the given type, removing as little sugar as possible.
The collection of all-type qualifiers we support.
void addAddressSpace(LangAS space)
Represents a struct/union/class.
ReturnStmt - This represents a return, optionally of an expression: return; return 4;.
void setRetValue(Expr *E)
SourceLocation getBeginLoc() const
Scope - A scope is a transient data structure that is used while parsing the program.
const Scope * getParent() const
getParent - Return the scope that this is nested in.
Scope * getTemplateParamParent()
LambdaScopeForCallOperatorInstantiationRAII(Sema &SemasRef, FunctionDecl *FD, MultiLevelTemplateArgumentList MLTAL, LocalInstantiationScope &Scope, bool ShouldAddDeclsFromParentScope=true)
Sema - This implements semantic analysis and AST building for C.
Attr * getImplicitCodeSegOrSectionAttrForFunction(const FunctionDecl *FD, bool IsDefinition)
Returns an implicit CodeSegAttr if a __declspec(code_seg) is found on a containing class.
QualType getCurrentThisType()
Try to retrieve the type of the 'this' pointer.
ExprResult BuildBlockForLambdaConversion(SourceLocation CurrentLocation, SourceLocation ConvLocation, CXXConversionDecl *Conv, Expr *Src)
Scope * getCurScope() const
Retrieve the parser's current scope.
bool DiagnoseEmptyLookup(Scope *S, CXXScopeSpec &SS, LookupResult &R, CorrectionCandidateCallback &CCC, TemplateArgumentListInfo *ExplicitTemplateArgs=nullptr, ArrayRef< Expr * > Args=std::nullopt, DeclContext *LookupCtx=nullptr, TypoExpr **Out=nullptr)
Diagnose an empty lookup.
ExprResult CreateBuiltinUnaryOp(SourceLocation OpLoc, UnaryOperatorKind Opc, Expr *InputExpr, bool IsAfterAmp=false)
bool RequireCompleteSizedType(SourceLocation Loc, QualType T, unsigned DiagID, const Ts &...Args)
@ LookupOrdinaryName
Ordinary name lookup, which finds ordinary names (functions, variables, typedefs, etc....
QualType deduceVarTypeFromInitializer(VarDecl *VDecl, DeclarationName Name, QualType Type, TypeSourceInfo *TSI, SourceRange Range, bool DirectInit, Expr *Init)
VarDecl * createLambdaInitCaptureVarDecl(SourceLocation Loc, QualType InitCaptureType, SourceLocation EllipsisLoc, IdentifierInfo *Id, unsigned InitStyle, Expr *Init, DeclContext *DeclCtx)
Create a dummy variable within the declcontext of the lambda's call operator, for name lookup purpose...
ExprResult ActOnLambdaExpr(SourceLocation StartLoc, Stmt *Body)
ActOnLambdaExpr - This is called when the body of a lambda expression was successfully completed.
SemaDiagnosticBuilder Diag(SourceLocation Loc, unsigned DiagID, bool DeferHint=false)
Emit a diagnostic.
ExprResult BuildLambdaExpr(SourceLocation StartLoc, SourceLocation EndLoc, sema::LambdaScopeInfo *LSI)
Complete a lambda-expression having processed and attached the lambda body.
CXXRecordDecl * createLambdaClosureType(SourceRange IntroducerRange, TypeSourceInfo *Info, unsigned LambdaDependencyKind, LambdaCaptureDefault CaptureDefault)
Create a new lambda closure type.
void PushExpressionEvaluationContext(ExpressionEvaluationContext NewContext, Decl *LambdaContextDecl=nullptr, ExpressionEvaluationContextRecord::ExpressionKind Type=ExpressionEvaluationContextRecord::EK_Other)
void CUDACheckLambdaCapture(CXXMethodDecl *D, const sema::Capture &Capture)
SmallVector< sema::FunctionScopeInfo *, 4 > FunctionScopes
Stack containing information about each of the nested function, block, and method scopes that are cur...
PoppedFunctionScopePtr PopFunctionScopeInfo(const sema::AnalysisBasedWarnings::Policy *WP=nullptr, const Decl *D=nullptr, QualType BlockType=QualType())
Pop a function (or block or lambda or captured region) scope from the stack.
bool CheckCXXThisCapture(SourceLocation Loc, bool Explicit=false, bool BuildAndDiagnose=true, const unsigned *const FunctionScopeIndexToStopAt=nullptr, bool ByCopy=false)
Make sure the value of 'this' is actually available in the current context, if it is a potentially ev...
void ActOnLambdaExpressionAfterIntroducer(LambdaIntroducer &Intro, Scope *CurContext)
Once the Lambdas capture are known, we can start to create the closure, call operator method,...
void AddTemplateParametersToLambdaCallOperator(CXXMethodDecl *CallOperator, CXXRecordDecl *Class, TemplateParameterList *TemplateParams)
ExprResult MaybeBindToTemporary(Expr *E)
MaybeBindToTemporary - If the passed in expression has a record type with a non-trivial destructor,...
void AddRangeBasedOptnone(FunctionDecl *FD)
Only called on function definitions; if there is a pragma in scope with the effect of a range-based o...
void addInitCapture(sema::LambdaScopeInfo *LSI, VarDecl *Var, bool ByRef)
Add an init-capture to a lambda scope.
FieldDecl * BuildCaptureField(RecordDecl *RD, const sema::Capture &Capture)
Build a FieldDecl suitable to hold the given capture.
sema::LambdaScopeInfo * RebuildLambdaScopeInfo(CXXMethodDecl *CallOperator)
void PushOnScopeChains(NamedDecl *D, Scope *S, bool AddToContext=true)
Add this decl to the scope shadowed decl chains.
ASTContext & getASTContext() const
bool tryCaptureVariable(ValueDecl *Var, SourceLocation Loc, TryCaptureKind Kind, SourceLocation EllipsisLoc, bool BuildAndDiagnose, QualType &CaptureType, QualType &DeclRefType, const unsigned *const FunctionScopeIndexToStopAt)
Try to capture the given variable.
void PopExpressionEvaluationContext()
sema::LambdaScopeInfo * getCurGenericLambda()
Retrieve the current generic lambda info, if any.
void handleLambdaNumbering(CXXRecordDecl *Class, CXXMethodDecl *Method, std::optional< CXXRecordDecl::LambdaNumbering > NumberingOverride=std::nullopt)
Number lambda for linkage purposes if necessary.
LangAS getDefaultCXXMethodAddrSpace() const
Returns default addr space for method qualifiers.
ExprResult BuildCaptureInit(const sema::Capture &Capture, SourceLocation ImplicitCaptureLoc, bool IsOpenMPMapping=false)
Initialize the given capture with a suitable expression.
FPOptions & getCurFPFeatures()
SourceLocation getLocForEndOfToken(SourceLocation Loc, unsigned Offset=0)
Calls Lexer::getLocForEndOfToken()
@ UPPC_Initializer
An initializer.
@ UPPC_DeclarationType
The type of an arbitrary declaration.
void buildLambdaScope(sema::LambdaScopeInfo *LSI, CXXMethodDecl *CallOperator, SourceRange IntroducerRange, LambdaCaptureDefault CaptureDefault, SourceLocation CaptureDefaultLoc, bool ExplicitParams, bool Mutable)
Endow the lambda scope info with the relevant properties.
const LangOptions & getLangOpts() const
bool CaptureHasSideEffects(const sema::Capture &From)
Does copying/destroying the captured variable have side effects?
void ActOnStartOfLambdaDefinition(LambdaIntroducer &Intro, Declarator &ParamInfo, const DeclSpec &DS)
ActOnStartOfLambdaDefinition - This is called just before we start parsing the body of a lambda; it a...
void ActOnLambdaClosureParameters(Scope *LambdaScope, MutableArrayRef< DeclaratorChunk::ParamInfo > ParamInfo)
bool CheckConstexprFunctionDefinition(const FunctionDecl *FD, CheckConstexprKind Kind)
bool DiagnoseUnexpandedParameterPack(SourceLocation Loc, TypeSourceInfo *T, UnexpandedParameterPackContext UPPC)
If the given type contains an unexpanded parameter pack, diagnose the error.
void DiagnoseInvalidExplicitObjectParameterInLambda(CXXMethodDecl *Method)
const LangOptions & LangOpts
sema::LambdaScopeInfo * getCurLambda(bool IgnoreNonLambdaCapturingScope=false)
Retrieve the current lambda scope info, if any.
bool DiagnoseUnusedLambdaCapture(SourceRange CaptureRange, const sema::Capture &From)
Diagnose if an explicit lambda capture is unused.
QualType buildLambdaInitCaptureInitialization(SourceLocation Loc, bool ByRef, SourceLocation EllipsisLoc, std::optional< unsigned > NumExpansions, IdentifierInfo *Id, bool DirectInit, Expr *&Init)
void CheckCXXDefaultArguments(FunctionDecl *FD)
Helpers for dealing with blocks and functions.
CleanupInfo Cleanup
Used to control the generation of ExprWithCleanups.
void DiagnoseShadowingLambdaDecls(const sema::LambdaScopeInfo *LSI)
Diagnose shadowing for variables shadowed in the lambda record LambdaRD when these variables are capt...
Expr * BuildCXXThisExpr(SourceLocation Loc, QualType Type, bool IsImplicit)
Build a CXXThisExpr and mark it referenced in the current context.
QualType BuildReferenceType(QualType T, bool LValueRef, SourceLocation Loc, DeclarationName Entity)
Build a reference type.
ExprResult BuildDeclarationNameExpr(const CXXScopeSpec &SS, LookupResult &R, bool NeedsADL, bool AcceptInvalidDecl=false)
void DiagPlaceholderVariableDefinition(SourceLocation Loc)
DeclContext * CurContext
CurContext - This is the current declaration context of parsing.
void ActOnFinishedFunctionDefinitionInOpenMPAssumeScope(Decl *D)
Act on D, a function definition inside of an omp [begin/end] assumes.
bool inTemplateInstantiation() const
Determine whether we are currently performing template instantiation.
@ TryCapture_ExplicitByVal
@ TryCapture_ExplicitByRef
void ActOnLambdaExplicitTemplateParameterList(LambdaIntroducer &Intro, SourceLocation LAngleLoc, ArrayRef< NamedDecl * > TParams, SourceLocation RAngleLoc, ExprResult RequiresClause)
This is called after parsing the explicit template parameter list on a lambda (if it exists) in C++2a...
Decl * ActOnFinishFunctionBody(Decl *Decl, Stmt *Body)
void ActOnLambdaClosureQualifiers(LambdaIntroducer &Intro, SourceLocation MutableLoc)
void ActOnLambdaError(SourceLocation StartLoc, Scope *CurScope, bool IsInstantiation=false)
ActOnLambdaError - If there is an error parsing a lambda, this callback is invoked to pop the informa...
bool DiagnoseUseOfDecl(NamedDecl *D, ArrayRef< SourceLocation > Locs, const ObjCInterfaceDecl *UnknownObjCClass=nullptr, bool ObjCPropertyAccess=false, bool AvoidPartialAvailabilityChecks=false, ObjCInterfaceDecl *ClassReciever=nullptr, bool SkipTrailingRequiresClause=false)
Determine whether the use of this declaration is valid, and emit any corresponding diagnostics.
bool CheckParmsForFunctionDef(ArrayRef< ParmVarDecl * > Parameters, bool CheckParameterNames)
CheckParmsForFunctionDef - Check that the parameters of the given function are appropriate for the de...
void CheckShadow(NamedDecl *D, NamedDecl *ShadowedDecl, const LookupResult &R)
Diagnose variable or built-in function shadowing.
@ Normal
A normal translation unit fragment.
void CUDASetLambdaAttrs(CXXMethodDecl *Method)
Set device or host device attributes on the given lambda operator() method.
SmallVector< ExprWithCleanups::CleanupObject, 8 > ExprCleanupObjects
ExprCleanupObjects - This is the stack of objects requiring cleanup that are created by the current f...
@ UnevaluatedAbstract
The current expression occurs within an unevaluated operand that unconditionally permits abstract ref...
@ UnevaluatedList
The current expression occurs within a braced-init-list within an unevaluated operand.
@ ConstantEvaluated
The current context is "potentially evaluated" in C++11 terms, but the expression is evaluated at com...
@ DiscardedStatement
The current expression occurs within a discarded statement.
@ PotentiallyEvaluated
The current expression is potentially evaluated at run time, which means that code may be generated t...
@ Unevaluated
The current expression and its subexpressions occur within an unevaluated operand (C++11 [expr]p7),...
@ ImmediateFunctionContext
In addition of being constant evaluated, the current expression occurs in an immediate function conte...
@ PotentiallyEvaluatedIfUsed
The current expression is potentially evaluated, but any declarations referenced inside that expressi...
TypeSourceInfo * GetTypeForDeclarator(Declarator &D)
GetTypeForDeclarator - Convert the type for the specified declarator to Type instances.
bool RequireCompleteType(SourceLocation Loc, QualType T, CompleteTypeKind Kind, TypeDiagnoser &Diagnoser)
Ensure that the type T is a complete type.
void ActOnFields(Scope *S, SourceLocation RecLoc, Decl *TagDecl, ArrayRef< Decl * > Fields, SourceLocation LBrac, SourceLocation RBrac, const ParsedAttributesView &AttrList)
void CheckExplicitObjectLambda(Declarator &D)
QualType getLambdaConversionFunctionResultType(const FunctionProtoType *CallOpType, CallingConv CC)
Get the return type to use for a lambda's conversion function(s) to function pointer type,...
void CheckCompletedCXXClass(Scope *S, CXXRecordDecl *Record)
Perform semantic checks on a class definition that has been completing, introducing implicitly-declar...
void DiscardCleanupsInEvaluationContext()
SmallVector< ExpressionEvaluationContextRecord, 8 > ExprEvalContexts
A stack of expression evaluation contexts.
void PushDeclContext(Scope *S, DeclContext *DC)
Set the current declaration context until it gets popped.
CXXMethodDecl * CreateLambdaCallOperator(SourceRange IntroducerRange, CXXRecordDecl *Class)
void deduceClosureReturnType(sema::CapturingScopeInfo &CSI)
Deduce a block or lambda's return type based on the return statements present in the body.
ExprResult PerformCopyInitialization(const InitializedEntity &Entity, SourceLocation EqualLoc, ExprResult Init, bool TopLevelOfInitList=false, bool AllowExplicit=false)
void ProcessDeclAttributes(Scope *S, Decl *D, const Declarator &PD)
ProcessDeclAttributes - Given a declarator (PD) with attributes indicated in it, apply them to D.
QualType SubstAutoTypeDependent(QualType TypeWithAuto)
std::tuple< MangleNumberingContext *, Decl * > getCurrentMangleNumberContext(const DeclContext *DC)
Compute the mangling number context for a lambda expression or block literal.
void CompleteLambdaCallOperator(CXXMethodDecl *Method, SourceLocation LambdaLoc, SourceLocation CallOperatorLoc, Expr *TrailingRequiresClause, TypeSourceInfo *MethodTyInfo, ConstexprSpecKind ConstexprKind, StorageClass SC, ArrayRef< ParmVarDecl * > Params, bool HasExplicitResultType)
void finishLambdaExplicitCaptures(sema::LambdaScopeInfo *LSI)
Note that we have finished the explicit captures for the given lambda.
bool IsDerivedFrom(SourceLocation Loc, QualType Derived, QualType Base)
Determine whether the type Derived is a C++ class that is derived from the type Base.
@ CheckValid
Identify whether this function satisfies the formal rules for constexpr functions in the current lanu...
bool LookupName(LookupResult &R, Scope *S, bool AllowBuiltinCreation=false, bool ForceNoCPlusPlus=false)
Perform unqualified name lookup starting from a given scope.
void NoteTemplateParameterLocation(const NamedDecl &Decl)
ExprResult ActOnFinishFullExpr(Expr *Expr, bool DiscardedValue)
Encodes a location in the source.
bool isValid() const
Return true if this is a valid SourceLocation object.
A trivial tuple used to represent a source range.
SourceLocation getEnd() const
SourceLocation getBegin() const
StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}).
Stmt - This represents one statement.
SourceLocation getEndLoc() const LLVM_READONLY
bool hasNameForLinkage() const
Is this tag type named, either directly or via being defined in a typedef of this type?
Exposes information about the current target.
virtual CallingConvCheckResult checkCallingConvention(CallingConv CC) const
Determines whether a given calling convention is valid for the target.
TemplateParameterList * getTemplateParameters() const
Get the list of template parameters.
Stores a list of template parameters for a TemplateDecl and its derived classes.
ArrayRef< NamedDecl * > asArray()
TyLocType push(QualType T)
Pushes space for a new TypeLoc of the given type.
TypeSourceInfo * getTypeSourceInfo(ASTContext &Context, QualType T)
Creates a TypeSourceInfo for the given type.
Base wrapper for a particular "section" of type source info.
T getAs() const
Convert to the specified TypeLoc type, returning a null TypeLoc if this TypeLoc is not of the desired...
A container of type source information.
TypeLoc getTypeLoc() const
Return the TypeLoc wrapper for the type source info.
QualType getType() const
Return the type wrapped by this type source info.
void setNameLoc(SourceLocation Loc)
The base class of the type hierarchy.
CXXRecordDecl * getAsCXXRecordDecl() const
Retrieves the CXXRecordDecl that this type refers to, either because the type is a RecordType or beca...
bool isIntegralOrUnscopedEnumerationType() const
Determine whether this type is an integral or unscoped enumeration type.
const T * castAs() const
Member-template castAs<specific type>.
QualType getPointeeType() const
If this is a pointer, ObjC object pointer, or block pointer, this returns the respective pointee.
bool isDependentType() const
Whether this type is a dependent type, meaning that its definition somehow depends on a template para...
bool containsUnexpandedParameterPack() const
Whether this type is or contains an unexpanded parameter pack, used to support C++0x variadic templat...
const Type * getBaseElementTypeUnsafe() const
Get the base element type of this type, potentially discarding type qualifiers.
bool isUndeducedType() const
Determine whether this type is an undeduced type, meaning that it somehow involves a C++11 'auto' typ...
bool isIncompleteType(NamedDecl **Def=nullptr) const
Types are partitioned into 3 broad categories (C99 6.2.5p1): object types, function types,...
const T * getAs() const
Member-template getAs<specific type>'.
std::optional< NullabilityKind > getNullability() const
Determine the nullability of the given type.
Represent the declaration of a variable (in which case it is an lvalue) a function (in which case it ...
void setType(QualType newType)
VarDecl * getPotentiallyDecomposedVarDecl()
bool isInitCapture() const
Whether this variable is the implicit variable for a lambda init-capture.
Represents a variable declaration or definition.
static VarDecl * Create(ASTContext &C, DeclContext *DC, SourceLocation StartLoc, SourceLocation IdLoc, const IdentifierInfo *Id, QualType T, TypeSourceInfo *TInfo, StorageClass S)
void setInitStyle(InitializationStyle Style)
void setInitCapture(bool IC)
bool isInitCapture() const
Whether this variable is the implicit variable for a lambda init-capture.
InitializationStyle
Initialization styles.
@ ListInit
Direct list-initialization (C++11)
@ CInit
C-style initialization with assignment.
@ CallInit
Call-style initialization (C++98)
bool hasLocalStorage() const
Returns true if a variable with function scope is a non-static local variable.
StorageClass getStorageClass() const
Returns the storage class as written in the source.
bool isParameterPack() const
Determine whether this variable is actually a function parameter pack or init-capture pack.
ValueDecl * getVariable() const
bool isVariableCapture() const
bool isBlockCapture() const
SourceLocation getLocation() const
Retrieve the location at which this variable was captured.
bool isNonODRUsed() const
bool isInitCapture() const
Determine whether this capture is an init-capture.
bool isVLATypeCapture() const
SourceLocation getEllipsisLoc() const
Retrieve the source location of the ellipsis, whose presence indicates that the capture is a pack exp...
bool isThisCapture() const
QualType getCaptureType() const
Retrieve the capture type for this capture, which is effectively the type of the non-static data memb...
bool isCopyCapture() const
const VariableArrayType * getCapturedVLAType() const
QualType ReturnType
ReturnType - The target type of return statements in this context, or null if unknown.
bool isCaptured(ValueDecl *Var) const
Determine whether the given variable has been captured.
SmallVector< Capture, 4 > Captures
Captures - The captures.
ImplicitCaptureStyle ImpCaptureStyle
bool HasImplicitReturnType
Capture & getCXXThisCapture()
Retrieve the capture of C++ 'this', if it has been captured.
bool isCXXThisCaptured() const
Determine whether the C++ 'this' is captured.
void addCapture(ValueDecl *Var, bool isBlock, bool isByref, bool isNested, SourceLocation Loc, SourceLocation EllipsisLoc, QualType CaptureType, bool Invalid)
SmallVector< ReturnStmt *, 4 > Returns
The list of return statements that occur within the function or block, if there is any chance of appl...
SourceLocation PotentialThisCaptureLocation
void finishedExplicitCaptures()
Note when all explicit captures have been added.
bool ContainsUnexpandedParameterPack
Whether the lambda contains an unexpanded parameter pack.
SmallVector< NamedDecl *, 4 > LocalPacks
Packs introduced by this lambda, if any.
CleanupInfo Cleanup
Whether any of the capture expressions requires cleanups.
SourceRange IntroducerRange
Source range covering the lambda introducer [...].
bool ExplicitParams
Whether the (empty) parameter list is explicit.
TemplateParameterList * GLTemplateParameterList
If this is a generic lambda, and the template parameter list has been created (from the TemplateParam...
ExprResult RequiresClause
The requires-clause immediately following the explicit template parameter list, if any.
SourceRange ExplicitTemplateParamsRange
Source range covering the explicit template parameter list (if it exists).
CXXRecordDecl * Lambda
The class that describes the lambda.
unsigned NumExplicitCaptures
The number of captures in the Captures list that are explicit captures.
SourceLocation CaptureDefaultLoc
Source location of the '&' or '=' specifying the default capture type, if any.
llvm::DenseMap< unsigned, SourceRange > ExplicitCaptureRanges
A map of explicit capture indices to their introducer source ranges.
bool AfterParameterList
Indicate that we parsed the parameter list at which point the mutability of the lambda is known.
CXXMethodDecl * CallOperator
The lambda's compiler-generated operator().
bool Mutable
Whether this is a mutable lambda.
Defines the clang::TargetInfo interface.
The JSON file list parser is used to communicate input to InstallAPI.
DeclContext * getLambdaAwareParentOfDeclContext(DeclContext *DC)
std::optional< unsigned > getStackIndexOfNearestEnclosingCaptureCapableLambda(ArrayRef< const sema::FunctionScopeInfo * > FunctionScopes, ValueDecl *VarToCapture, Sema &S)
Examines the FunctionScopeInfo stack to determine the nearest enclosing lambda (to the current lambda...
ConstexprSpecKind
Define the kind of constexpr specifier.
@ ICIS_NoInit
No in-class initializer.
@ RQ_None
No ref-qualifier was provided.
LambdaCaptureKind
The different capture forms in a lambda introducer.
@ LCK_ByCopy
Capturing by copy (a.k.a., by value)
@ LCK_ByRef
Capturing by reference.
@ LCK_VLAType
Capturing variable-length array type.
@ LCK_StarThis
Capturing the *this object by copy.
@ LCK_This
Capturing the *this object by reference.
bool isLambdaCallWithExplicitObjectParameter(const DeclContext *DC)
StorageClass
Storage classes.
bool FTIHasSingleVoidParameter(const DeclaratorChunk::FunctionTypeInfo &FTI)
@ CopyInit
[a = b], [a = {b}]
bool isLambdaCallOperator(const CXXMethodDecl *MD)
@ Result
The result type of a method or function.
bool hasWeakerNullability(NullabilityKind L, NullabilityKind R)
Return true if L has a weaker nullability annotation than R.
ActionResult< Expr * > ExprResult
LangAS
Defines the address space values used by the address space qualifier of QualType.
LambdaCaptureDefault
The default, if any, capture method for a lambda expression.
@ VK_PRValue
A pr-value expression (in the C++11 taxonomy) produces a temporary value.
StringRef getLambdaStaticInvokerName()
if(T->getSizeExpr()) TRY_TO(TraverseStmt(T -> getSizeExpr()))
CallingConv
CallingConv - Specifies the calling convention that a function uses.
@ Class
The "class" keyword introduces the elaborated-type-specifier.
@ EST_BasicNoexcept
noexcept
MutableArrayRef< Expr * > MultiExprArg
Information about how a lambda is numbered within its context.
unsigned DeviceManglingNumber
bool HasKnownInternalLinkage
DeclarationNameInfo - A collector data type for bundling together a DeclarationName and the correspon...
SourceLocation getTrailingReturnTypeLoc() const
Get the trailing-return-type location for this function declarator.
bool hasTrailingReturnType() const
Determine whether this function declarator had a trailing-return-type.
ParsedType getTrailingReturnType() const
Get the trailing-return-type for this function declarator.
bool hasMutableQualifier() const
Determine whether this lambda-declarator contains a 'mutable' qualifier.
DeclSpec & getOrCreateMethodQualifiers()
ParamInfo - An array of paraminfo objects is allocated whenever a function declarator is parsed.
ExceptionSpecificationType Type
The kind of exception specification this is.
Extra information about a function prototype.
ExceptionSpecInfo ExceptionSpec
RefQualifierKind RefQualifier
unsigned HasTrailingReturn
FunctionType::ExtInfo ExtInfo
unsigned NumExplicitTemplateParams
The number of parameters in the template parameter list that were explicitly specified by the user,...
SmallVector< NamedDecl *, 4 > TemplateParams
Store the list of the template parameters for a generic lambda or an abbreviated function template.
Represents a complete lambda introducer.
SmallVector< LambdaCapture, 4 > Captures
SourceLocation DefaultLoc
LambdaCaptureDefault Default
An RAII helper that pops function a function scope on exit.