forked from OSchip/llvm-project
57 lines
2.0 KiB
Objective-C
57 lines
2.0 KiB
Objective-C
// 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;
|
|
}
|