1 files changed, 35 insertions, 0 deletions
diff --git a/test/SemaObjC/protocol-archane.m b/test/SemaObjC/protocol-archane.m
new file mode 100644
index 0000000..3e70c05
--- /dev/null
+++ b/test/SemaObjC/protocol-archane.m
@@ -0,0 +1,35 @@
+// RUN: clang-cc -fsyntax-only -verify %s
+// rdar://5986251
+
+@protocol SomeProtocol
+- (void) bar;
+@end
+
+void foo(id x) {
+  bar((short<SomeProtocol>)x); // expected-error {{expected ')'}} expected-note {{to match this '('}}
+  bar((<SomeProtocol>)x);      // expected-warning {{protocol qualifiers without 'id' is archaic}}
+
+  [(<SomeProtocol>)x bar];      // expected-warning {{protocol qualifiers without 'id' is archaic}}
+}
+
+@protocol MyProtocol
+- (void)doSomething;
+@end
+
+@interface MyClass
+- (void)m1:(id <MyProtocol> const)arg1;
+
+// FIXME: provide a better diagnostic (no typedef).
+- (void)m2:(id <MyProtocol> short)arg1; // expected-error {{'short type-name' is invalid}}
+@end
+
+typedef int NotAnObjCObjectType;
+
+// GCC doesn't diagnose this.
+NotAnObjCObjectType <SomeProtocol> *obj; // expected-error {{invalid protocol qualifiers on non-ObjC type}}
+
+// Decided not to support the following GCC extension. Found while researching rdar://6497631
+typedef struct objc_class *Class;
+
+Class <SomeProtocol> UnfortunateGCCExtension; // expected-error {{protocol qualified 'Class' is unsupported}}
+