Add support for GCC ObjC extension "Class<protocol>". Sigh.
Found while researching <rdar://problem/6497631> Message lookup is sometimes different than gcc's.
Will never be seen in user code. Needed to pass dejagnu testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65244 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 830cc6a..cdd61cd 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -1394,6 +1394,29 @@
return QualType(QType, 0);
}
+/// getObjCQualifiedClassType - Return an ObjCQualifiedIdType for the 'Class'
+/// decl and the conforming protocol list.
+QualType ASTContext::getObjCQualifiedClassType(ObjCProtocolDecl **Protocols,
+ unsigned NumProtocols) {
+ // Sort the protocol list alphabetically to canonicalize it.
+ SortAndUniqueProtocols(Protocols, NumProtocols);
+
+ llvm::FoldingSetNodeID ID;
+ ObjCQualifiedIdType::Profile(ID, Protocols, NumProtocols);
+
+ void *InsertPos = 0;
+ if (ObjCQualifiedClassType *QT =
+ ObjCQualifiedClassTypes.FindNodeOrInsertPos(ID, InsertPos))
+ return QualType(QT, 0);
+
+ // No Match;
+ ObjCQualifiedClassType *QType =
+ new (*this,8) ObjCQualifiedClassType(Protocols, NumProtocols);
+ Types.push_back(QType);
+ ObjCQualifiedClassTypes.InsertNode(QType, InsertPos);
+ return QualType(QType, 0);
+}
+
/// getTypeOfExpr - Unlike many "get<Type>" functions, we can't unique
/// TypeOfExpr AST's (since expression's are never shared). For example,
/// multiple declarations that refer to "typeof(x)" all contain different