Basic support for representing elaborated type specifiers
directly in the AST. The current thinking is to create these
only in C++ mode for efficiency. But for now, they're not being
created at all; patch to follow.
This will let us do things like verify that tags match during
template instantation, as well as signal that an elaborated type
specifier was used for clients that actually care.
Optimally, the TypeLoc hierarchy should be adjusted to carry tag
location information as well.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81057 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index 22e01ab..b49ed54 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -441,6 +441,11 @@
QualType RebuildEnumType(EnumDecl *Enum) {
return SemaRef.Context.getTypeDeclType(Enum);
}
+
+ /// \brief Build a new elaborated type.
+ QualType RebuildElaboratedType(QualType T, ElaboratedType::TagKind Tag) {
+ return SemaRef.Context.getElaboratedType(T, Tag);
+ }
/// \brief Build a new typeof(expr) type.
///
@@ -2328,6 +2333,21 @@
return getDerived().RebuildEnumType(Enum);
}
+
+template <typename Derived>
+QualType TreeTransform<Derived>::TransformElaboratedType(
+ const ElaboratedType *T) {
+ QualType Underlying = getDerived().TransformType(T->getUnderlyingType());
+ if (Underlying.isNull())
+ return QualType();
+
+ if (!getDerived().AlwaysRebuild() &&
+ Underlying == T->getUnderlyingType())
+ return QualType(T, 0);
+
+ return getDerived().RebuildElaboratedType(Underlying, T->getTagKind());
+}
+
template<typename Derived>
QualType TreeTransform<Derived>::TransformTemplateTypeParmType(