ObjectiveC. Allow toll free bridge cast warnings outside

ARC and in objectiveC/ObjectiveC++ MRR mode as well.
// rdar://15454846

llvm-svn: 195288

1 files changed, 139 insertions, 0 deletions

diff --git a/clang/test/SemaObjC/objcbridge-attribute-arc.m b/clang/test/SemaObjC/objcbridge-attribute-arc.m
new file mode 100644
index 00000000000..9b67523a50c
--- /dev/null
+++ b/clang/test/SemaObjC/objcbridge-attribute-arc.m
@@ -0,0 +1,139 @@
+// RUN: %clang_cc1 -fsyntax-only -x objective-c -fobjc-arc -verify -Wno-objc-root-class %s
+// rdar://15454846
+
+typedef struct __attribute__ ((objc_bridge(NSError))) __CFErrorRef * CFErrorRef; // expected-note 7 {{declared here}}
+
+typedef struct __attribute__ ((objc_bridge(MyError))) __CFMyErrorRef * CFMyErrorRef; // expected-note 3 {{declared here}}
+
+typedef struct __attribute__((objc_bridge(12))) __CFMyColor  *CFMyColorRef; // expected-error {{parameter of 'objc_bridge' attribute must be a single name of an Objective-C class}}
+
+typedef struct __attribute__ ((objc_bridge)) __CFArray *CFArrayRef; // expected-error {{parameter of 'objc_bridge' attribute must be a single name of an Objective-C class}}
+
+typedef void *  __attribute__ ((objc_bridge(NSURL))) CFURLRef;  // expected-error {{'objc_bridge' attribute only applies to struct or union}}
+
+typedef void * CFStringRef __attribute__ ((objc_bridge(NSString))); // expected-error {{'objc_bridge' attribute only applies to struct or union}}
+
+typedef struct __attribute__((objc_bridge(NSLocale, NSError))) __CFLocale *CFLocaleRef;// expected-error {{use of undeclared identifier 'NSError'}}
+
+typedef struct __CFData __attribute__((objc_bridge(NSData))) CFDataRef; // expected-error {{'objc_bridge' attribute only applies to struct or union}}
+
+typedef struct __attribute__((objc_bridge(NSDictionary))) __CFDictionary * CFDictionaryRef;
+
+typedef struct __CFSetRef * CFSetRef __attribute__((objc_bridge(NSSet))); // expected-error {{'objc_bridge' attribute only applies to struct or union}};
+
+typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) * CFUColorRef; // expected-error {{'objc_bridge' attribute only applies to struct or union}};
+
+typedef union __CFUColor __attribute__((objc_bridge(NSUColor))) *CFUColor1Ref; // expected-error {{'objc_bridge' attribute only applies to struct or union}};
+
+typedef union __attribute__((objc_bridge(NSUColor))) __CFUPrimeColor XXX;
+typedef XXX *CFUColor2Ref;
+
+@interface I
+{
+   __attribute__((objc_bridge(NSError))) void * color; // expected-error {{'objc_bridge' attribute only applies to struct or union}};
+}
+@end
+
+@protocol NSTesting @end
+@class NSString;
+
+typedef struct __attribute__((objc_bridge(NSTesting))) __CFError *CFTestingRef; // expected-note {{declared here}}
+
+id Test1(CFTestingRef cf) {
+  return (NSString *)cf; // expected-error {{CF object of type 'CFTestingRef' (aka 'struct __CFError *') is bridged to 'NSTesting', which is not an Objective-C class}}
+}
+
+typedef CFErrorRef CFErrorRef1;
+
+typedef CFErrorRef1 CFErrorRef2; // expected-note 2 {{declared here}}
+
+@protocol P1 @end
+@protocol P2 @end
+@protocol P3 @end
+@protocol P4 @end
+@protocol P5 @end
+
+@interface NSError<P1, P2, P3> @end // expected-note 7 {{declared here}}
+
+@interface MyError : NSError // expected-note 3 {{declared here}}
+@end
+
+@interface NSUColor @end
+
+@class NSString;
+
+void Test2(CFErrorRef2 cf, NSError *ns, NSString *str, Class c, CFUColor2Ref cf2) {
+  (void)(NSString *)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'NSString'}}
+  (void)(NSError *)cf; // okay
+  (void)(MyError*)cf; // okay,
+  (void)(NSUColor *)cf2; // okay
+  (void)(CFErrorRef)ns; // okay
+  (void)(CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
+  (void)(Class)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'Class'}}
+  (void)(CFErrorRef)c; // expected-warning {{'Class' cannot bridge to 'CFErrorRef'}}
+}
+
+
+void Test3(CFErrorRef cf, NSError *ns) {
+  (void)(id)cf; // okay
+ (void)(id<P1, P2>)cf; // okay
+ (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFErrorRef' (aka 'struct __CFErrorRef *') bridges to NSError, not 'id<P1,P2,P4>'}}
+}
+
+void Test4(CFMyErrorRef cf) {
+   (void)(id)cf; // okay
+ (void)(id<P1, P2>)cf; // ok
+ (void)(id<P1, P2, P3>)cf; // ok
+ (void)(id<P2, P3>)cf; // ok
+ (void)(id<P1, P2, P4>)cf; // expected-warning {{'CFMyErrorRef' (aka 'struct __CFMyErrorRef *') bridges to MyError, not 'id<P1,P2,P4>'}}
+}
+
+void Test5(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
+ (void)(CFErrorRef)ID; // ok
+ (void)(CFErrorRef)P123; // ok
+ (void)(CFErrorRef)P1234; // ok
+ (void)(CFErrorRef)P12; // expected-warning {{'id<P1,P2>' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
+ (void)(CFErrorRef)P23; // expected-warning {{'id<P2,P3>' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
+}
+
+void Test6(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
+
+ (void)(CFMyErrorRef)ID; // ok
+ (void)(CFMyErrorRef)P123; // ok
+ (void)(CFMyErrorRef)P1234; // ok
+ (void)(CFMyErrorRef)P12; // expected-warning {{'id<P1,P2>' cannot bridge to 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *')}}
+ (void)(CFMyErrorRef)P23; // expected-warning {{'id<P2,P3>' cannot bridge to 'CFMyErrorRef' (aka 'struct __CFMyErrorRef *')}}
+}
+
+typedef struct __attribute__ ((objc_bridge(MyPersonalError))) __CFMyPersonalErrorRef * CFMyPersonalErrorRef;  // expected-note 4 {{declared here}}
+
+@interface MyPersonalError : NSError <P4> // expected-note 4 {{declared here}}
+@end
+
+void Test7(id<P1, P2, P3> P123, id ID, id<P1, P2, P3, P4> P1234, id<P1, P2> P12, id<P2, P3> P23) {
+ (void)(CFMyPersonalErrorRef)ID; // ok
+ (void)(CFMyPersonalErrorRef)P123; // expected-warning {{'id<P1,P2,P3>' cannot bridge to 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
+ (void)(CFMyPersonalErrorRef)P1234; // ok
+ (void)(CFMyPersonalErrorRef)P12; //  expected-warning {{'id<P1,P2>' cannot bridge to 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
+ (void)(CFMyPersonalErrorRef)P23; //  expected-warning {{'id<P2,P3>' cannot bridge to 'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *')}}
+}
+
+void Test8(CFMyPersonalErrorRef cf) {
+  (void)(id)cf; // ok
+  (void)(id<P1>)cf; // ok
+  (void)(id<P1, P2>)cf; // ok
+  (void)(id<P1, P2, P3>)cf; // ok
+  (void)(id<P1, P2, P3, P4>)cf; // ok
+  (void)(id<P1, P2, P3, P4, P5>)cf; // expected-warning {{'CFMyPersonalErrorRef' (aka 'struct __CFMyPersonalErrorRef *') bridges to MyPersonalError, not 'id<P1,P2,P3,P4,P5>'}}
+}
+
+void Test9(CFErrorRef2 cf, NSError *ns, NSString *str, Class c, CFUColor2Ref cf2) {
+  (void)(__bridge NSString *)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'NSString'}}
+  (void)(__bridge NSError *)cf; // okay
+  (void)(__bridge MyError*)cf; // okay,
+  (void)(__bridge NSUColor *)cf2; // okay
+  (void)(__bridge CFErrorRef)ns; // okay
+  (void)(__bridge CFErrorRef)str;  // expected-warning {{'NSString' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
+  (void)(__bridge Class)cf; // expected-warning {{'CFErrorRef2' (aka 'struct __CFErrorRef *') bridges to NSError, not 'Class'}}
+  (void)(__bridge CFErrorRef)c; // expected-warning {{'__unsafe_unretained Class' cannot bridge to 'CFErrorRef' (aka 'struct __CFErrorRef *')}}
+}