Substantially alter the design of the Objective C type AST by introducing

ObjCObjectType, which is basically just a pair of
  one of {primitive-id, primitive-Class, user-defined @class}
with
  a list of protocols.
An ObjCObjectPointerType is therefore just a pointer which always points to
one of these types (possibly sugared).  ObjCInterfaceType is now just a kind
of ObjCObjectType which happens to not carry any protocols.

Alter a rather large number of use sites to use ObjCObjectType instead of
ObjCInterfaceType.  Store an ObjCInterfaceType as a pointer on the decl rather
than hashing them in a FoldingSet.  Remove some number of methods that are no
longer used, at least after this patch.

By simplifying ObjCObjectPointerType, we are now able to easily remove and apply
pointers to Objective-C types, which is crucial for a certain kind of ObjC++
metaprogramming common in WebKit.

llvm-svn: 103870

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CGDebugInfo.h b/clang/lib/CodeGen/CGDebugInfo.h
index c484d4f49c3..620a5f2f848 100644
--- a/clang/lib/CodeGen/CGDebugInfo.h
+++ b/clang/lib/CodeGen/CGDebugInfo.h
@@ -80,6 +80,7 @@ class CGDebugInfo {
   llvm::DIType CreateType(const TagType *Ty, llvm::DIFile F);
   llvm::DIType CreateType(const RecordType *Ty, llvm::DIFile F);
   llvm::DIType CreateType(const ObjCInterfaceType *Ty, llvm::DIFile F);
+  llvm::DIType CreateType(const ObjCObjectType *Ty, llvm::DIFile F);
   llvm::DIType CreateType(const EnumType *Ty, llvm::DIFile F);
   llvm::DIType CreateType(const VectorType *Ty, llvm::DIFile F);
   llvm::DIType CreateType(const ArrayType *Ty, llvm::DIFile F);