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.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@103870 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjCXX/deduction.mm b/test/SemaObjCXX/deduction.mm
index 0d2fc06..6dd449d 100644
--- a/test/SemaObjCXX/deduction.mm
+++ b/test/SemaObjCXX/deduction.mm
@@ -26,3 +26,33 @@
RetainPtr<id> ptr(S);
}
}
+
+@class Test1Class;
+@protocol Test1Protocol;
+namespace test1 {
+ template <typename T> struct RemovePointer {
+ typedef T type;
+ };
+ template <typename T> struct RemovePointer<T*> {
+ typedef T type;
+ };
+ template <typename A, typename B> struct is_same {};
+ template <typename A> struct is_same<A,A> {
+ static void foo();
+ };
+ template <typename T> struct tester {
+ void test() {
+ is_same<T, typename RemovePointer<T>::type*>::foo(); // expected-error 2 {{no member named 'foo'}}
+ }
+ };
+
+ template struct tester<id>;
+ template struct tester<id<Test1Protocol> >;
+ template struct tester<Class>;
+ template struct tester<Class<Test1Protocol> >;
+ template struct tester<Test1Class*>;
+ template struct tester<Test1Class<Test1Protocol>*>;
+
+ template struct tester<Test1Class>; // expected-note {{in instantiation}}
+ template struct tester<Test1Class<Test1Protocol> >; // expected-note {{in instantiation}}
+}