[ASTImporter] Add support to import some AST nodes:
* CXXOperatorCallExpr
* SizeOfPackExpr
* DependentTemplateSpecializationType
* DependentSizedArray
* CXXTypeidExpr
* Fix importing CXXTemporaryObjectExpr
Some of the changes are based on
https://github.com/haoNoQ/clang/blob/summary-ipa-draft/lib/AST/ASTImporter.cpp
Differential Revision: https://reviews.llvm.org/D42335
llvm-svn: 323589
diff --git a/clang/lib/AST/ASTImporter.cpp b/clang/lib/AST/ASTImporter.cpp
index 89c58ce..805c387 100644
--- a/clang/lib/AST/ASTImporter.cpp
+++ b/clang/lib/AST/ASTImporter.cpp
@@ -52,7 +52,7 @@
QualType VisitConstantArrayType(const ConstantArrayType *T);
QualType VisitIncompleteArrayType(const IncompleteArrayType *T);
QualType VisitVariableArrayType(const VariableArrayType *T);
- // FIXME: DependentSizedArrayType
+ QualType VisitDependentSizedArrayType(const DependentSizedArrayType *T);
// FIXME: DependentSizedExtVectorType
QualType VisitVectorType(const VectorType *T);
QualType VisitExtVectorType(const ExtVectorType *T);
@@ -78,7 +78,8 @@
QualType VisitElaboratedType(const ElaboratedType *T);
// FIXME: DependentNameType
QualType VisitPackExpansionType(const PackExpansionType *T);
- // FIXME: DependentTemplateSpecializationType
+ QualType VisitDependentTemplateSpecializationType(
+ const DependentTemplateSpecializationType *T);
QualType VisitObjCInterfaceType(const ObjCInterfaceType *T);
QualType VisitObjCObjectType(const ObjCObjectType *T);
QualType VisitObjCObjectPointerType(const ObjCObjectPointerType *T);
@@ -294,6 +295,7 @@
Expr *VisitCXXTemporaryObjectExpr(CXXTemporaryObjectExpr *CE);
Expr *VisitMaterializeTemporaryExpr(MaterializeTemporaryExpr *E);
Expr *VisitPackExpansionExpr(PackExpansionExpr *E);
+ Expr *VisitSizeOfPackExpr(SizeOfPackExpr *E);
Expr *VisitCXXNewExpr(CXXNewExpr *CE);
Expr *VisitCXXDeleteExpr(CXXDeleteExpr *E);
Expr *VisitCXXConstructExpr(CXXConstructExpr *E);
@@ -315,6 +317,7 @@
Expr *VisitCXXNamedCastExpr(CXXNamedCastExpr *E);
Expr *VisitSubstNonTypeTemplateParmExpr(SubstNonTypeTemplateParmExpr *E);
Expr *VisitTypeTraitExpr(TypeTraitExpr *E);
+ Expr *VisitCXXTypeidExpr(CXXTypeidExpr *E);
template<typename IIter, typename OIter>
@@ -527,6 +530,24 @@
Brackets);
}
+QualType ASTNodeImporter::VisitDependentSizedArrayType(
+ const DependentSizedArrayType *T) {
+ QualType ToElementType = Importer.Import(T->getElementType());
+ if (ToElementType.isNull())
+ return QualType();
+
+ // SizeExpr may be null if size is not specified directly.
+ // For example, 'int a[]'.
+ Expr *Size = Importer.Import(T->getSizeExpr());
+ if (!Size && T->getSizeExpr())
+ return QualType();
+
+ SourceRange Brackets = Importer.Import(T->getBracketsRange());
+ return Importer.getToContext().getDependentSizedArrayType(
+ ToElementType, Size, T->getSizeModifier(), T->getIndexTypeCVRQualifiers(),
+ Brackets);
+}
+
QualType ASTNodeImporter::VisitVectorType(const VectorType *T) {
QualType ToElementType = Importer.Import(T->getElementType());
if (ToElementType.isNull())
@@ -827,6 +848,25 @@
T->getNumExpansions());
}
+QualType ASTNodeImporter::VisitDependentTemplateSpecializationType(
+ const DependentTemplateSpecializationType *T) {
+ NestedNameSpecifier *Qualifier = Importer.Import(T->getQualifier());
+ if (!Qualifier && T->getQualifier())
+ return QualType();
+
+ IdentifierInfo *Name = Importer.Import(T->getIdentifier());
+ if (!Name && T->getIdentifier())
+ return QualType();
+
+ SmallVector<TemplateArgument, 2> ToPack;
+ ToPack.reserve(T->getNumArgs());
+ if (ImportTemplateArguments(T->getArgs(), T->getNumArgs(), ToPack))
+ return QualType();
+
+ return Importer.getToContext().getDependentTemplateSpecializationType(
+ T->getKeyword(), Qualifier, Name, ToPack);
+}
+
QualType ASTNodeImporter::VisitObjCInterfaceType(const ObjCInterfaceType *T) {
ObjCInterfaceDecl *Class
= dyn_cast_or_null<ObjCInterfaceDecl>(Importer.Import(T->getDecl()));
@@ -5709,6 +5749,11 @@
if (T.isNull())
return nullptr;
+
+ TypeSourceInfo *TInfo = Importer.Import(CE->getTypeSourceInfo());
+ if (!TInfo)
+ return nullptr;
+
SmallVector<Expr *, 8> Args(CE->getNumArgs());
if (ImportContainerChecked(CE->arguments(), Args))
return nullptr;
@@ -5718,18 +5763,11 @@
if (!Ctor)
return nullptr;
- return CXXTemporaryObjectExpr::Create(
- Importer.getToContext(), T,
- Importer.Import(CE->getLocStart()),
- Ctor,
- CE->isElidable(),
- Args,
- CE->hadMultipleCandidates(),
- CE->isListInitialization(),
- CE->isStdInitListInitialization(),
- CE->requiresZeroInitialization(),
- CE->getConstructionKind(),
- Importer.Import(CE->getParenOrBraceRange()));
+ return new (Importer.getToContext()) CXXTemporaryObjectExpr(
+ Importer.getToContext(), Ctor, T, TInfo, Args,
+ Importer.Import(CE->getParenOrBraceRange()), CE->hadMultipleCandidates(),
+ CE->isListInitialization(), CE->isStdInitListInitialization(),
+ CE->requiresZeroInitialization());
}
Expr *
@@ -5769,6 +5807,31 @@
E->getNumExpansions());
}
+Expr *ASTNodeImporter::VisitSizeOfPackExpr(SizeOfPackExpr *E) {
+ auto *Pack = cast_or_null<NamedDecl>(Importer.Import(E->getPack()));
+ if (!Pack)
+ return nullptr;
+
+ Optional<unsigned> Length;
+
+ if (!E->isValueDependent())
+ Length = E->getPackLength();
+
+ SmallVector<TemplateArgument, 8> PartialArguments;
+ if (E->isPartiallySubstituted()) {
+ if (ImportTemplateArguments(E->getPartialArguments().data(),
+ E->getPartialArguments().size(),
+ PartialArguments))
+ return nullptr;
+ }
+
+ return SizeOfPackExpr::Create(
+ Importer.getToContext(), Importer.Import(E->getOperatorLoc()), Pack,
+ Importer.Import(E->getPackLoc()), Importer.Import(E->getRParenLoc()),
+ Length, PartialArguments);
+}
+
+
Expr *ASTNodeImporter::VisitCXXNewExpr(CXXNewExpr *CE) {
QualType T = Importer.Import(CE->getType());
if (T.isNull())
@@ -6093,16 +6156,9 @@
return nullptr;
unsigned NumArgs = E->getNumArgs();
-
llvm::SmallVector<Expr *, 2> ToArgs(NumArgs);
-
- for (unsigned ai = 0, ae = NumArgs; ai != ae; ++ai) {
- Expr *FromArg = E->getArg(ai);
- Expr *ToArg = Importer.Import(FromArg);
- if (!ToArg)
- return nullptr;
- ToArgs[ai] = ToArg;
- }
+ if (ImportContainerChecked(E->arguments(), ToArgs))
+ return nullptr;
Expr **ToArgs_Copied = new (Importer.getToContext())
Expr*[NumArgs];
@@ -6110,6 +6166,13 @@
for (unsigned ai = 0, ae = NumArgs; ai != ae; ++ai)
ToArgs_Copied[ai] = ToArgs[ai];
+ if (const auto *OCE = dyn_cast<CXXOperatorCallExpr>(E)) {
+ return new (Importer.getToContext()) CXXOperatorCallExpr(
+ Importer.getToContext(), OCE->getOperator(), ToCallee, ToArgs, T,
+ OCE->getValueKind(), Importer.Import(OCE->getRParenLoc()),
+ OCE->getFPFeatures());
+ }
+
return new (Importer.getToContext())
CallExpr(Importer.getToContext(), ToCallee,
llvm::makeArrayRef(ToArgs_Copied, NumArgs), T, E->getValueKind(),
@@ -6336,6 +6399,28 @@
E->getTrait(), ToArgs, Importer.Import(E->getLocEnd()), ToValue);
}
+Expr *ASTNodeImporter::VisitCXXTypeidExpr(CXXTypeidExpr *E) {
+ QualType ToType = Importer.Import(E->getType());
+ if (ToType.isNull())
+ return nullptr;
+
+ if (E->isTypeOperand()) {
+ TypeSourceInfo *TSI = Importer.Import(E->getTypeOperandSourceInfo());
+ if (!TSI)
+ return nullptr;
+
+ return new (Importer.getToContext())
+ CXXTypeidExpr(ToType, TSI, Importer.Import(E->getSourceRange()));
+ }
+
+ Expr *Op = Importer.Import(E->getExprOperand());
+ if (!Op)
+ return nullptr;
+
+ return new (Importer.getToContext())
+ CXXTypeidExpr(ToType, Op, Importer.Import(E->getSourceRange()));
+}
+
void ASTNodeImporter::ImportOverrides(CXXMethodDecl *ToMethod,
CXXMethodDecl *FromMethod) {
for (auto *FromOverriddenMethod : FromMethod->overridden_methods())