Initial patch to support definitions of id and Class from headers in Objective-C code.
This currently breaks test/SemaObjC/id-isa-ref.m and issues some spurious warnings when you attempt to assign a struct objc_class* value to a Class variable. The test case probably should fail as it's written, because without the definition of Class the compiler should not assume struct objc_class* is a valid receiver type, but it's left broken because it would be nice if we could get that passing too for the special case of isa.
Approved by snaroff.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79248 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index b672d05..f6988d1 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -534,12 +534,14 @@
case 2:
if (!TypeID->isStr("id"))
break;
+ Context.ObjCIdRedefinitionType = New->getUnderlyingType();
// Install the built-in type for 'id', ignoring the current definition.
New->setTypeForDecl(Context.getObjCIdType().getTypePtr());
return;
case 5:
if (!TypeID->isStr("Class"))
break;
+ Context.ObjCClassRedefinitionType = New->getUnderlyingType();
// Install the built-in type for 'Class', ignoring the current definition.
New->setTypeForDecl(Context.getObjCClassType().getTypePtr());
return;