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-rw-r--r--lib/AST/DeclTemplate.cpp150
1 files changed, 71 insertions, 79 deletions
diff --git a/lib/AST/DeclTemplate.cpp b/lib/AST/DeclTemplate.cpp
index 00a6739478bd..a7949b310cef 100644
--- a/lib/AST/DeclTemplate.cpp
+++ b/lib/AST/DeclTemplate.cpp
@@ -1,4 +1,4 @@
-//===--- DeclTemplate.cpp - Template Declaration AST Node Implementation --===//
+//===- DeclTemplate.cpp - Template Declaration AST Node Implementation ----===//
//
// The LLVM Compiler Infrastructure
//
@@ -15,13 +15,28 @@
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTMutationListener.h"
#include "clang/AST/DeclCXX.h"
+#include "clang/AST/DeclarationName.h"
#include "clang/AST/Expr.h"
-#include "clang/AST/ExprCXX.h"
+#include "clang/AST/TemplateBase.h"
+#include "clang/AST/TemplateName.h"
+#include "clang/AST/Type.h"
#include "clang/AST/TypeLoc.h"
#include "clang/Basic/Builtins.h"
-#include "clang/Basic/IdentifierTable.h"
-#include "llvm/ADT/STLExtras.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/SourceLocation.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/None.h"
+#include "llvm/ADT/PointerUnion.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/ErrorHandling.h"
+#include <algorithm>
+#include <cassert>
+#include <cstdint>
#include <memory>
+#include <utility>
+
using namespace clang;
//===----------------------------------------------------------------------===//
@@ -33,9 +48,9 @@ TemplateParameterList::TemplateParameterList(SourceLocation TemplateLoc,
ArrayRef<NamedDecl *> Params,
SourceLocation RAngleLoc,
Expr *RequiresClause)
- : TemplateLoc(TemplateLoc), LAngleLoc(LAngleLoc), RAngleLoc(RAngleLoc),
- NumParams(Params.size()), ContainsUnexpandedParameterPack(false),
- HasRequiresClause(static_cast<bool>(RequiresClause)) {
+ : TemplateLoc(TemplateLoc), LAngleLoc(LAngleLoc), RAngleLoc(RAngleLoc),
+ NumParams(Params.size()), ContainsUnexpandedParameterPack(false),
+ HasRequiresClause(static_cast<bool>(RequiresClause)) {
for (unsigned Idx = 0; Idx < NumParams; ++Idx) {
NamedDecl *P = Params[Idx];
begin()[Idx] = P;
@@ -124,10 +139,12 @@ static void AdoptTemplateParameterList(TemplateParameterList *Params,
}
namespace clang {
+
void *allocateDefaultArgStorageChain(const ASTContext &C) {
return new (C) char[sizeof(void*) * 2];
}
-}
+
+} // namespace clang
//===----------------------------------------------------------------------===//
// RedeclarableTemplateDecl Implementation
@@ -165,14 +182,28 @@ RedeclarableTemplateDecl::CommonBase *RedeclarableTemplateDecl::getCommonPtr() c
return Common;
}
+void RedeclarableTemplateDecl::loadLazySpecializationsImpl() const {
+ // Grab the most recent declaration to ensure we've loaded any lazy
+ // redeclarations of this template.
+ CommonBase *CommonBasePtr = getMostRecentDecl()->getCommonPtr();
+ if (CommonBasePtr->LazySpecializations) {
+ ASTContext &Context = getASTContext();
+ uint32_t *Specs = CommonBasePtr->LazySpecializations;
+ CommonBasePtr->LazySpecializations = nullptr;
+ for (uint32_t I = 0, N = *Specs++; I != N; ++I)
+ (void)Context.getExternalSource()->GetExternalDecl(Specs[I]);
+ }
+}
+
template<class EntryType>
typename RedeclarableTemplateDecl::SpecEntryTraits<EntryType>::DeclType *
RedeclarableTemplateDecl::findSpecializationImpl(
llvm::FoldingSetVector<EntryType> &Specs, ArrayRef<TemplateArgument> Args,
void *&InsertPos) {
- typedef SpecEntryTraits<EntryType> SETraits;
+ using SETraits = SpecEntryTraits<EntryType>;
+
llvm::FoldingSetNodeID ID;
- EntryType::Profile(ID,Args, getASTContext());
+ EntryType::Profile(ID, Args, getASTContext());
EntryType *Entry = Specs.FindNodeOrInsertPos(ID, InsertPos);
return Entry ? SETraits::getDecl(Entry)->getMostRecentDecl() : nullptr;
}
@@ -181,7 +212,8 @@ template<class Derived, class EntryType>
void RedeclarableTemplateDecl::addSpecializationImpl(
llvm::FoldingSetVector<EntryType> &Specializations, EntryType *Entry,
void *InsertPos) {
- typedef SpecEntryTraits<EntryType> SETraits;
+ using SETraits = SpecEntryTraits<EntryType>;
+
if (InsertPos) {
#ifndef NDEBUG
void *CorrectInsertPos;
@@ -232,18 +264,7 @@ FunctionTemplateDecl::newCommon(ASTContext &C) const {
}
void FunctionTemplateDecl::LoadLazySpecializations() const {
- // Grab the most recent declaration to ensure we've loaded any lazy
- // redeclarations of this template.
- //
- // FIXME: Avoid walking the entire redeclaration chain here.
- Common *CommonPtr = getMostRecentDecl()->getCommonPtr();
- if (CommonPtr->LazySpecializations) {
- ASTContext &Context = getASTContext();
- uint32_t *Specs = CommonPtr->LazySpecializations;
- CommonPtr->LazySpecializations = nullptr;
- for (uint32_t I = 0, N = *Specs++; I != N; ++I)
- (void)Context.getExternalSource()->GetExternalDecl(Specs[I]);
- }
+ loadLazySpecializationsImpl();
}
llvm::FoldingSetVector<FunctionTemplateSpecializationInfo> &
@@ -311,18 +332,7 @@ ClassTemplateDecl *ClassTemplateDecl::CreateDeserialized(ASTContext &C,
}
void ClassTemplateDecl::LoadLazySpecializations() const {
- // Grab the most recent declaration to ensure we've loaded any lazy
- // redeclarations of this template.
- //
- // FIXME: Avoid walking the entire redeclaration chain here.
- Common *CommonPtr = getMostRecentDecl()->getCommonPtr();
- if (CommonPtr->LazySpecializations) {
- ASTContext &Context = getASTContext();
- uint32_t *Specs = CommonPtr->LazySpecializations;
- CommonPtr->LazySpecializations = nullptr;
- for (uint32_t I = 0, N = *Specs++; I != N; ++I)
- (void)Context.getExternalSource()->GetExternalDecl(Specs[I]);
- }
+ loadLazySpecializationsImpl();
}
llvm::FoldingSetVector<ClassTemplateSpecializationDecl> &
@@ -562,7 +572,7 @@ SourceLocation NonTypeTemplateParmDecl::getDefaultArgumentLoc() const {
// TemplateTemplateParmDecl Method Implementations
//===----------------------------------------------------------------------===//
-void TemplateTemplateParmDecl::anchor() { }
+void TemplateTemplateParmDecl::anchor() {}
TemplateTemplateParmDecl::TemplateTemplateParmDecl(
DeclContext *DC, SourceLocation L, unsigned D, unsigned P,
@@ -665,11 +675,12 @@ FunctionTemplateSpecializationInfo::Create(ASTContext &C, FunctionDecl *FD,
// TemplateDecl Implementation
//===----------------------------------------------------------------------===//
-void TemplateDecl::anchor() { }
+void TemplateDecl::anchor() {}
//===----------------------------------------------------------------------===//
// ClassTemplateSpecializationDecl Implementation
//===----------------------------------------------------------------------===//
+
ClassTemplateSpecializationDecl::
ClassTemplateSpecializationDecl(ASTContext &Context, Kind DK, TagKind TK,
DeclContext *DC, SourceLocation StartLoc,
@@ -677,11 +688,9 @@ ClassTemplateSpecializationDecl(ASTContext &Context, Kind DK, TagKind TK,
ClassTemplateDecl *SpecializedTemplate,
ArrayRef<TemplateArgument> Args,
ClassTemplateSpecializationDecl *PrevDecl)
- : CXXRecordDecl(DK, TK, Context, DC, StartLoc, IdLoc,
- SpecializedTemplate->getIdentifier(),
- PrevDecl),
+ : CXXRecordDecl(DK, TK, Context, DC, StartLoc, IdLoc,
+ SpecializedTemplate->getIdentifier(), PrevDecl),
SpecializedTemplate(SpecializedTemplate),
- ExplicitInfo(nullptr),
TemplateArgs(TemplateArgumentList::CreateCopy(Context, Args)),
SpecializationKind(TSK_Undeclared) {
}
@@ -690,7 +699,7 @@ ClassTemplateSpecializationDecl::ClassTemplateSpecializationDecl(ASTContext &C,
Kind DK)
: CXXRecordDecl(DK, TTK_Struct, C, nullptr, SourceLocation(),
SourceLocation(), nullptr, nullptr),
- ExplicitInfo(nullptr), SpecializationKind(TSK_Undeclared) {}
+ SpecializationKind(TSK_Undeclared) {}
ClassTemplateSpecializationDecl *
ClassTemplateSpecializationDecl::Create(ASTContext &Context, TagKind TK,
@@ -726,12 +735,10 @@ void ClassTemplateSpecializationDecl::getNameForDiagnostic(
auto *PS = dyn_cast<ClassTemplatePartialSpecializationDecl>(this);
if (const ASTTemplateArgumentListInfo *ArgsAsWritten =
PS ? PS->getTemplateArgsAsWritten() : nullptr) {
- TemplateSpecializationType::PrintTemplateArgumentList(
- OS, ArgsAsWritten->arguments(), Policy);
+ printTemplateArgumentList(OS, ArgsAsWritten->arguments(), Policy);
} else {
const TemplateArgumentList &TemplateArgs = getTemplateArgs();
- TemplateSpecializationType::PrintTemplateArgumentList(
- OS, TemplateArgs.asArray(), Policy);
+ printTemplateArgumentList(OS, TemplateArgs.asArray(), Policy);
}
}
@@ -762,7 +769,7 @@ ClassTemplateSpecializationDecl::getSourceRange() const {
// An implicit instantiation of a class template partial specialization
// uses ExplicitInfo to record the TypeAsWritten, but the source
// locations should be retrieved from the instantiation pattern.
- typedef ClassTemplatePartialSpecializationDecl CTPSDecl;
+ using CTPSDecl = ClassTemplatePartialSpecializationDecl;
CTPSDecl *ctpsd = const_cast<CTPSDecl*>(cast<CTPSDecl>(this));
CTPSDecl *inst_from = ctpsd->getInstantiatedFromMember();
assert(inst_from != nullptr);
@@ -785,7 +792,7 @@ ClassTemplateSpecializationDecl::getSourceRange() const {
//===----------------------------------------------------------------------===//
// ClassTemplatePartialSpecializationDecl Implementation
//===----------------------------------------------------------------------===//
-void ClassTemplatePartialSpecializationDecl::anchor() { }
+void ClassTemplatePartialSpecializationDecl::anchor() {}
ClassTemplatePartialSpecializationDecl::
ClassTemplatePartialSpecializationDecl(ASTContext &Context, TagKind TK,
@@ -797,14 +804,12 @@ ClassTemplatePartialSpecializationDecl(ASTContext &Context, TagKind TK,
ArrayRef<TemplateArgument> Args,
const ASTTemplateArgumentListInfo *ArgInfos,
ClassTemplatePartialSpecializationDecl *PrevDecl)
- : ClassTemplateSpecializationDecl(Context,
- ClassTemplatePartialSpecialization,
- TK, DC, StartLoc, IdLoc,
- SpecializedTemplate,
- Args, PrevDecl),
- TemplateParams(Params), ArgsAsWritten(ArgInfos),
- InstantiatedFromMember(nullptr, false)
-{
+ : ClassTemplateSpecializationDecl(Context,
+ ClassTemplatePartialSpecialization,
+ TK, DC, StartLoc, IdLoc,
+ SpecializedTemplate, Args, PrevDecl),
+ TemplateParams(Params), ArgsAsWritten(ArgInfos),
+ InstantiatedFromMember(nullptr, false) {
AdoptTemplateParameterList(Params, this);
}
@@ -845,7 +850,7 @@ ClassTemplatePartialSpecializationDecl::CreateDeserialized(ASTContext &C,
// FriendTemplateDecl Implementation
//===----------------------------------------------------------------------===//
-void FriendTemplateDecl::anchor() { }
+void FriendTemplateDecl::anchor() {}
FriendTemplateDecl *
FriendTemplateDecl::Create(ASTContext &Context, DeclContext *DC,
@@ -891,7 +896,7 @@ TypeAliasTemplateDecl::newCommon(ASTContext &C) const {
// ClassScopeFunctionSpecializationDecl Implementation
//===----------------------------------------------------------------------===//
-void ClassScopeFunctionSpecializationDecl::anchor() { }
+void ClassScopeFunctionSpecializationDecl::anchor() {}
ClassScopeFunctionSpecializationDecl *
ClassScopeFunctionSpecializationDecl::CreateDeserialized(ASTContext &C,
@@ -927,21 +932,8 @@ VarTemplateDecl *VarTemplateDecl::CreateDeserialized(ASTContext &C,
DeclarationName(), nullptr, nullptr);
}
-// TODO: Unify across class, function and variable templates?
-// May require moving this and Common to RedeclarableTemplateDecl.
void VarTemplateDecl::LoadLazySpecializations() const {
- // Grab the most recent declaration to ensure we've loaded any lazy
- // redeclarations of this template.
- //
- // FIXME: Avoid walking the entire redeclaration chain here.
- Common *CommonPtr = getMostRecentDecl()->getCommonPtr();
- if (CommonPtr->LazySpecializations) {
- ASTContext &Context = getASTContext();
- uint32_t *Specs = CommonPtr->LazySpecializations;
- CommonPtr->LazySpecializations = nullptr;
- for (uint32_t I = 0, N = *Specs++; I != N; ++I)
- (void)Context.getExternalSource()->GetExternalDecl(Specs[I]);
- }
+ loadLazySpecializationsImpl();
}
llvm::FoldingSetVector<VarTemplateSpecializationDecl> &
@@ -1020,21 +1012,22 @@ VarTemplateDecl::findPartialSpecInstantiatedFromMember(
//===----------------------------------------------------------------------===//
// VarTemplateSpecializationDecl Implementation
//===----------------------------------------------------------------------===//
+
VarTemplateSpecializationDecl::VarTemplateSpecializationDecl(
Kind DK, ASTContext &Context, DeclContext *DC, SourceLocation StartLoc,
SourceLocation IdLoc, VarTemplateDecl *SpecializedTemplate, QualType T,
TypeSourceInfo *TInfo, StorageClass S, ArrayRef<TemplateArgument> Args)
: VarDecl(DK, Context, DC, StartLoc, IdLoc,
SpecializedTemplate->getIdentifier(), T, TInfo, S),
- SpecializedTemplate(SpecializedTemplate), ExplicitInfo(nullptr),
+ SpecializedTemplate(SpecializedTemplate),
TemplateArgs(TemplateArgumentList::CreateCopy(Context, Args)),
- SpecializationKind(TSK_Undeclared) {}
+ SpecializationKind(TSK_Undeclared), IsCompleteDefinition(false) {}
VarTemplateSpecializationDecl::VarTemplateSpecializationDecl(Kind DK,
ASTContext &C)
: VarDecl(DK, C, nullptr, SourceLocation(), SourceLocation(), nullptr,
QualType(), nullptr, SC_None),
- ExplicitInfo(nullptr), SpecializationKind(TSK_Undeclared) {}
+ SpecializationKind(TSK_Undeclared), IsCompleteDefinition(false) {}
VarTemplateSpecializationDecl *VarTemplateSpecializationDecl::Create(
ASTContext &Context, DeclContext *DC, SourceLocation StartLoc,
@@ -1058,12 +1051,10 @@ void VarTemplateSpecializationDecl::getNameForDiagnostic(
auto *PS = dyn_cast<VarTemplatePartialSpecializationDecl>(this);
if (const ASTTemplateArgumentListInfo *ArgsAsWritten =
PS ? PS->getTemplateArgsAsWritten() : nullptr) {
- TemplateSpecializationType::PrintTemplateArgumentList(
- OS, ArgsAsWritten->arguments(), Policy);
+ printTemplateArgumentList(OS, ArgsAsWritten->arguments(), Policy);
} else {
const TemplateArgumentList &TemplateArgs = getTemplateArgs();
- TemplateSpecializationType::PrintTemplateArgumentList(
- OS, TemplateArgs.asArray(), Policy);
+ printTemplateArgumentList(OS, TemplateArgs.asArray(), Policy);
}
}
@@ -1085,6 +1076,7 @@ void VarTemplateSpecializationDecl::setTemplateArgsInfo(
//===----------------------------------------------------------------------===//
// VarTemplatePartialSpecializationDecl Implementation
//===----------------------------------------------------------------------===//
+
void VarTemplatePartialSpecializationDecl::anchor() {}
VarTemplatePartialSpecializationDecl::VarTemplatePartialSpecializationDecl(
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-01 02:41:02 +0000