Use NestedNameSpecifierLoc within out-of-line variables, function, and
tag definitions. Also, add support for template instantiation of
NestedNameSpecifierLocs.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126470 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index fa0c2b9..641df42 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -385,6 +385,17 @@
QualType ObjectType = QualType(),
NamedDecl *FirstQualifierInScope = 0);
+ /// \brief Transform the given nested-name-specifier with source-location
+ /// information.
+ ///
+ /// By default, transforms all of the types and declarations within the
+ /// nested-name-specifier. Subclasses may override this function to provide
+ /// alternate behavior.
+ NestedNameSpecifierLoc TransformNestedNameSpecifierLoc(
+ NestedNameSpecifierLoc NNS,
+ QualType ObjectType = QualType(),
+ NamedDecl *FirstQualifierInScope = 0);
+
/// \brief Transform the given declaration name.
///
/// By default, transforms the types of conversion function, constructor,
@@ -2264,6 +2275,11 @@
QualType ObjectType,
NamedDecl *FirstQualifierInScope,
NestedNameSpecifier *Prefix);
+
+ TypeLoc TransformTypeInObjectScope(TypeLoc TL,
+ QualType ObjectType,
+ NamedDecl *FirstQualifierInScope,
+ CXXScopeSpec &SS);
};
template<typename Derived>
@@ -2504,6 +2520,105 @@
}
template<typename Derived>
+NestedNameSpecifierLoc
+TreeTransform<Derived>::TransformNestedNameSpecifierLoc(
+ NestedNameSpecifierLoc NNS,
+ QualType ObjectType,
+ NamedDecl *FirstQualifierInScope) {
+ llvm::SmallVector<NestedNameSpecifierLoc, 4> Qualifiers;
+ for (NestedNameSpecifierLoc Qualifier = NNS; Qualifier;
+ Qualifier = Qualifier.getPrefix())
+ Qualifiers.push_back(Qualifier);
+
+ CXXScopeSpec SS;
+ while (!Qualifiers.empty()) {
+ NestedNameSpecifierLoc Q = Qualifiers.pop_back_val();
+ NestedNameSpecifier *QNNS = Q.getNestedNameSpecifier();
+
+ switch (QNNS->getKind()) {
+ case NestedNameSpecifier::Identifier:
+ if (SemaRef.BuildCXXNestedNameSpecifier(/*Scope=*/0,
+ *QNNS->getAsIdentifier(),
+ Q.getLocalBeginLoc(),
+ Q.getLocalEndLoc(),
+ ObjectType, false, SS,
+ FirstQualifierInScope, false))
+ return NestedNameSpecifierLoc();
+
+ break;
+
+ case NestedNameSpecifier::Namespace: {
+ NamespaceDecl *NS
+ = cast_or_null<NamespaceDecl>(
+ getDerived().TransformDecl(
+ Q.getLocalBeginLoc(),
+ QNNS->getAsNamespace()));
+ SS.Extend(SemaRef.Context, NS, Q.getLocalBeginLoc(), Q.getLocalEndLoc());
+ break;
+ }
+
+ case NestedNameSpecifier::NamespaceAlias: {
+ NamespaceAliasDecl *Alias
+ = cast_or_null<NamespaceAliasDecl>(
+ getDerived().TransformDecl(Q.getLocalBeginLoc(),
+ QNNS->getAsNamespaceAlias()));
+ SS.Extend(SemaRef.Context, Alias, Q.getLocalBeginLoc(),
+ Q.getLocalEndLoc());
+ break;
+ }
+
+ case NestedNameSpecifier::Global:
+ // There is no meaningful transformation that one could perform on the
+ // global scope.
+ SS.MakeGlobal(SemaRef.Context, Q.getBeginLoc());
+ break;
+
+ case NestedNameSpecifier::TypeSpecWithTemplate:
+ case NestedNameSpecifier::TypeSpec: {
+ TypeLoc TL = TransformTypeInObjectScope(Q.getTypeLoc(), ObjectType,
+ FirstQualifierInScope, SS);
+
+ if (!TL)
+ return NestedNameSpecifierLoc();
+
+ if (TL.getType()->isDependentType() || TL.getType()->isRecordType() ||
+ (SemaRef.getLangOptions().CPlusPlus0x &&
+ TL.getType()->isEnumeralType())) {
+ assert(!TL.getType().hasLocalQualifiers() &&
+ "Can't get cv-qualifiers here");
+ SS.Extend(SemaRef.Context, /*FIXME:*/SourceLocation(), TL,
+ Q.getLocalEndLoc());
+ break;
+ }
+
+ SemaRef.Diag(TL.getBeginLoc(), diag::err_nested_name_spec_non_tag)
+ << TL.getType() << SS.getRange();
+ return NestedNameSpecifierLoc();
+ }
+ }
+
+ // The object type and qualifier-in-scope really apply to the
+ // leftmost entity.
+ ObjectType = QualType();
+ FirstQualifierInScope = 0;
+ }
+
+ // Don't rebuild the nested-name-specifier if we don't have to.
+ if (SS.getScopeRep() == NNS.getNestedNameSpecifier() &&
+ !getDerived().AlwaysRebuild())
+ return NNS;
+
+ // If we can re-use the source-location data from the original
+ // nested-name-specifier, do so.
+ if (SS.location_size() == NNS.getDataLength() &&
+ memcmp(SS.location_data(), NNS.getOpaqueData(), SS.location_size()) == 0)
+ return NestedNameSpecifierLoc(SS.getScopeRep(), NNS.getOpaqueData());
+
+ // Allocate new nested-name-specifier location information.
+ return SS.getWithLocInContext(SemaRef.Context);
+}
+
+template<typename Derived>
DeclarationNameInfo
TreeTransform<Derived>
::TransformDeclarationNameInfo(const DeclarationNameInfo &NameInfo) {
@@ -3099,7 +3214,7 @@
QualType ObjectType,
NamedDecl *UnqualLookup,
NestedNameSpecifier *Prefix) {
- // TODO: in some cases, we might be some verification to do here.
+ // TODO: in some cases, we might have some verification to do here.
if (ObjectType.isNull())
return getDerived().TransformType(TSI);
@@ -3136,6 +3251,62 @@
return TLB.getTypeSourceInfo(SemaRef.Context, Result);
}
+template<typename Derived>
+TypeLoc
+TreeTransform<Derived>::TransformTypeInObjectScope(TypeLoc TL,
+ QualType ObjectType,
+ NamedDecl *UnqualLookup,
+ CXXScopeSpec &SS) {
+ // FIXME: Painfully copy-paste from the above!
+
+ // TODO: in some cases, we might have some verification to do here.
+ if (ObjectType.isNull()) {
+ TypeLocBuilder TLB;
+ TLB.reserve(TL.getFullDataSize());
+ QualType Result = getDerived().TransformType(TLB, TL);
+ if (Result.isNull())
+ return TypeLoc();
+
+ return TLB.getTypeSourceInfo(SemaRef.Context, Result)->getTypeLoc();
+ }
+
+ QualType T = TL.getType();
+ if (getDerived().AlreadyTransformed(T))
+ return TL;
+
+ TypeLocBuilder TLB;
+ QualType Result;
+
+ if (isa<TemplateSpecializationType>(T)) {
+ TemplateSpecializationTypeLoc SpecTL
+ = cast<TemplateSpecializationTypeLoc>(TL);
+
+ TemplateName Template =
+ getDerived().TransformTemplateName(SpecTL.getTypePtr()->getTemplateName(),
+ ObjectType, UnqualLookup);
+ if (Template.isNull())
+ return TypeLoc();
+
+ Result = getDerived().TransformTemplateSpecializationType(TLB, SpecTL,
+ Template);
+ } else if (isa<DependentTemplateSpecializationType>(T)) {
+ DependentTemplateSpecializationTypeLoc SpecTL
+ = cast<DependentTemplateSpecializationTypeLoc>(TL);
+
+ Result = getDerived().TransformDependentTemplateSpecializationType(TLB,
+ SpecTL,
+ SS.getScopeRep());
+ } else {
+ // Nothing special needs to be done for these.
+ Result = getDerived().TransformType(TLB, TL);
+ }
+
+ if (Result.isNull())
+ return TypeLoc();
+
+ return TLB.getTypeSourceInfo(SemaRef.Context, Result)->getTypeLoc();
+}
+
template <class TyLoc> static inline
QualType TransformTypeSpecType(TypeLocBuilder &TLB, TyLoc T) {
TyLoc NewT = TLB.push<TyLoc>(T.getType());
@@ -4351,7 +4522,8 @@
TemplateArgumentListInfo NewTemplateArgs;
NewTemplateArgs.setLAngleLoc(TL.getLAngleLoc());
NewTemplateArgs.setRAngleLoc(TL.getRAngleLoc());
-
+
+ // FIXME: Nested-name-specifier source location info!
typedef TemplateArgumentLocContainerIterator<
DependentTemplateSpecializationTypeLoc> ArgIterator;
if (getDerived().TransformTemplateArguments(ArgIterator(TL, 0),