This patch includes a conceptually simple, but very intrusive/pervasive change.
The idea is to segregate Objective-C "object" pointers from general C pointers (utilizing the recently added ObjCObjectPointerType). The fun starts in Sema::GetTypeForDeclarator(), where "SomeInterface *" is now represented by a single AST node (rather than a PointerType whose Pointee is an ObjCInterfaceType). Since a significant amount of code assumed ObjC object pointers where based on C pointers/structs, this patch is very tedious. It should also explain why it is hard to accomplish this in smaller, self-contained patches.
This patch does most of the "heavy lifting" related to moving from PointerType->ObjCObjectPointerType. It doesn't include all potential "cleanups". The good news is additional cleanups can be done later (some are noted in the code). This patch is so large that I didn't want to include any changes that are purely aesthetic.
By making the ObjC types truly built-in, they are much easier to work with (and require fewer "hacks"). For example, there is no need for ASTContext::isObjCIdStructType() or ASTContext::isObjCClassStructType()! We believe this change (and the follow-up cleanups) will pay dividends over time.
Given the amount of code change, I do expect some fallout from this change (though it does pass all of the clang tests). If you notice any problems, please let us know asap! Thanks.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@75314 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 47a7e62..c922b0d 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -1531,6 +1531,7 @@
Context->setObjCProtoType(GetType(Proto));
if (unsigned Class = SpecialTypes[pch::SPECIAL_TYPE_OBJC_CLASS])
Context->setObjCClassType(GetType(Class));
+
if (unsigned String = SpecialTypes[pch::SPECIAL_TYPE_CF_CONSTANT_STRING])
Context->setCFConstantStringType(GetType(String));
if (unsigned FastEnum
@@ -1934,13 +1935,12 @@
case pch::TYPE_OBJC_OBJECT_POINTER: {
unsigned Idx = 0;
- ObjCInterfaceDecl *ItfD =
- cast_or_null<ObjCInterfaceDecl>(GetDecl(Record[Idx++]));
+ QualType OIT = GetType(Record[Idx++]);
unsigned NumProtos = Record[Idx++];
llvm::SmallVector<ObjCProtocolDecl*, 4> Protos;
for (unsigned I = 0; I != NumProtos; ++I)
Protos.push_back(cast<ObjCProtocolDecl>(GetDecl(Record[Idx++])));
- return Context->getObjCObjectPointerType(ItfD, Protos.data(), NumProtos);
+ return Context->getObjCObjectPointerType(OIT, Protos.data(), NumProtos);
}
}
// Suppress a GCC warning