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// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fblocks -Wcast-qual -verify %s
// rdar://10597832
typedef const void *CFTypeRef;
typedef const struct __CFString *CFStringRef;
@class NSString;
@interface NSString
@end
CFTypeRef CFCreateSomething();
CFStringRef CFCreateString();
CFTypeRef CFGetSomething();
CFStringRef CFGetString();
id CreateSomething();
NSString *CreateNSString();
void from_cf() {
id obj1 = (__bridge_transfer id)CFCreateSomething(); // expected-warning {{'__bridge_transfer' casts have no effect when not using ARC}}
id obj2 = (__bridge_transfer NSString*)CFCreateString(); // expected-warning {{'__bridge_transfer' casts have no effect when not using ARC}}
(__bridge int*)CFCreateSomething(); // expected-warning {{expression result unused}} expected-warning {{cast from 'const void *' to 'int *' drops const qualifier}}
id obj3 = (__bridge id)CFGetSomething();
id obj4 = (__bridge NSString*)CFGetString();
}
void to_cf(id obj) {
CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething(); // expected-warning {{'__bridge_retained' casts have no effect when not using ARC}}
CFStringRef cf2 = (__bridge_retained CFStringRef)CreateNSString(); // expected-warning {{'__bridge_retained' casts have no effect when not using ARC}}
CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething();
CFStringRef cf4 = (__bridge CFStringRef)CreateNSString();
}
void fixits() {
id obj1 = (id)CFCreateSomething();
CFTypeRef cf1 = (CFTypeRef)CreateSomething();
}
#pragma clang diagnostic ignored "-Warc-bridge-casts-disallowed-in-nonarc"
void to_cf_ignored(id obj) {
CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething(); // no-warning
CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething(); // no-warning
}
// Check that clang doesn't warn about dropping const from Objective-C object
// types.
void test_wcast_qual() {
CFStringRef c;
NSString *n0 = (NSString *)c;
NSString **n1 = (NSString **)&c;
const NSString *n2;
const NSString **n3;
void *p0 = (void *)n2;
void **p1 = (void **)n3;
}
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