[AST] Introduce a new DecayedType sugar node
The goal of this sugar node is to be able to look at an arbitrary
FunctionType and tell if any of the parameters were decayed from an
array or function type. Ultimately this is necessary to implement
Microsoft's C++ name mangling scheme, which mangles decayed arrays
differently from normal pointers.
Reviewers: rsmith
Differential Revision: http://llvm-reviews.chandlerc.com/D1014
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184763 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index 83b2519..09bb0eb 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -1546,6 +1546,10 @@
return false;
}
+bool CursorVisitor::VisitDecayedTypeLoc(DecayedTypeLoc TL) {
+ return Visit(TL.getOriginalLoc());
+}
+
bool CursorVisitor::VisitTemplateSpecializationTypeLoc(
TemplateSpecializationTypeLoc TL) {
// Visit the template name.
diff --git a/tools/libclang/RecursiveASTVisitor.h b/tools/libclang/RecursiveASTVisitor.h
index 0958d52..17d70d6 100644
--- a/tools/libclang/RecursiveASTVisitor.h
+++ b/tools/libclang/RecursiveASTVisitor.h
@@ -786,6 +786,10 @@
TRY_TO(TraverseType(T->getPointeeType()));
})
+DEF_TRAVERSE_TYPE(DecayedType, {
+ TRY_TO(TraverseType(T->getOriginalType()));
+ })
+
DEF_TRAVERSE_TYPE(ConstantArrayType, {
TRY_TO(TraverseType(T->getElementType()));
})
@@ -992,6 +996,10 @@
TRY_TO(TraverseTypeLoc(TL.getPointeeLoc()));
})
+DEF_TRAVERSE_TYPELOC(DecayedType, {
+ TRY_TO(TraverseTypeLoc(TL.getOriginalLoc()));
+ })
+
template<typename Derived>
bool RecursiveASTVisitor<Derived>::TraverseArrayTypeLocHelper(ArrayTypeLoc TL) {
// This isn't available for ArrayType, but is for the ArrayTypeLoc.