Add the clang library to the repo (with some of my changes, too).

1 files changed, 44 insertions, 0 deletions

diff --git a/clang/test/SemaObjC/arc-bridged-cast.m b/clang/test/SemaObjC/arc-bridged-cast.m
new file mode 100644
index 0000000..56efe81
--- /dev/null
+++ b/clang/test/SemaObjC/arc-bridged-cast.m
@@ -0,0 +1,44 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -fblocks -verify %s
+
+typedef const void *CFTypeRef;
+CFTypeRef CFBridgingRetain(id X);
+id CFBridgingRelease(CFTypeRef);
+typedef const struct __CFString *CFStringRef;
+
+@interface NSString
+@end
+
+CFTypeRef CFCreateSomething();
+CFStringRef CFCreateString();
+CFTypeRef CFGetSomething();
+CFStringRef CFGetString();
+
+id CreateSomething();
+NSString *CreateNSString();
+
+void from_cf() {
+  id obj1 = (__bridge_transfer id)CFCreateSomething();
+  id obj2 = (__bridge_transfer NSString*)CFCreateString();
+  (__bridge int*)CFCreateSomething(); // expected-error{{incompatible types casting 'CFTypeRef' (aka 'const void *') to 'int *' with a __bridge cast}}
+  id obj3 = (__bridge id)CFGetSomething();
+  id obj4 = (__bridge NSString*)CFGetString();
+}
+
+void to_cf(id obj) {
+  CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething();
+  CFStringRef cf2 = (__bridge_retained CFStringRef)CreateNSString();
+  CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething();
+  CFStringRef cf4 = (__bridge CFStringRef)CreateNSString();
+
+  // rdar://problem/9629566 - temporary workaround
+  CFTypeRef cf5 = (__bridge_retain CFTypeRef)CreateSomething(); // expected-error {{unknown cast annotation __bridge_retain; did you mean __bridge_retained?}}
+}
+
+void fixits() {
+  id obj1 = (id)CFCreateSomething(); // expected-error{{cast of C pointer type 'CFTypeRef' (aka 'const void *') to Objective-C pointer type 'id' requires a bridged cast}} \
+  // expected-note{{use __bridge to convert directly (no change in ownership)}} \
+  // expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'CFTypeRef' (aka 'const void *') into ARC}}
+  CFTypeRef cf1 = (CFTypeRef)CreateSomething(); // expected-error{{cast of Objective-C pointer type 'id' to C pointer type 'CFTypeRef' (aka 'const void *') requires a bridged cast}} \
+  // expected-note{{use __bridge to convert directly (no change in ownership)}} \
+  // expected-note{{use CFBridgingRetain call to make an ARC object available as a +1 'CFTypeRef' (aka 'const void *')}}
+}