llvm-project/clang/test/ARCMT/releases.m.result

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// RUN: %clang_cc1 -fobjc-exceptions -fblocks -fsyntax-only -fobjc-arc -x objective-c %s.result
// RUN: arcmt-test --args -triple x86_64-apple-darwin10 -fobjc-exceptions -fblocks -fsyntax-only -x objective-c %s > %t
// RUN: diff %t %s.result
#define nil 0
typedef int BOOL;
id IhaveSideEffect();
@protocol NSObject
- (BOOL)isEqual:(id)object;
- (id)retain;
- (oneway void)release;
@end
@interface NSObject <NSObject> {}
@end
@interface Foo : NSObject {
id bar;
}
@property (strong) id bar;
-(void)test:(id)obj;
@end
@implementation Foo
@synthesize bar;
-(void)test:(id)obj {
id x = self.bar;
self.bar = obj;
// do stuff with x;
IhaveSideEffect();
x = 0;
@try {
} @finally {
x = nil;
}
}
@end
void func(Foo *p) {
}
@interface Baz {
id <NSObject> _foo;
}
@end
@implementation Baz
@end
void block_test(Foo *p) {
id (^B)() = ^() {
if (p) {
id (^IB)() = ^() {
id bar = p;
return bar;
};
IB();
}
return p;
};
}
#define RELEASE_MACRO(x) [x release]
#define RELEASE_MACRO2(x) RELEASE_MACRO(x)
void test2(id p) {
}
[arcmt] More automatic transformations and safety improvements; rdar://9615812 : - Replace calling -zone with 'nil'. -zone is obsolete in ARC. - Allow removing retain/release on a static global var. - Fix assertion hit when scanning for name references outside a NSAutoreleasePool scope. - Automatically add bridged casts for results of objc method calls and when calling CFRetain, for example: NSString *s; CFStringRef ref = [s string]; -> CFStringRef ref = (__bridge CFStringRef)([s string]); ref = s.string; -> ref = (__bridge CFStringRef)(s.string); ref = [NSString new]; -> ref = (__bridge_retained CFStringRef)([NSString new]); ref = [s newString]; -> ref = (__bridge_retained CFStringRef)([s newString]); ref = [[NSString alloc] init]; -> ref = (__bridge_retained CFStringRef)([[NSString alloc] init]); ref = [[s string] retain]; -> ref = (__bridge_retained CFStringRef)([s string]); ref = CFRetain(s); -> ref = (__bridge_retained CFTypeRef)(s); ref = [s retain]; -> ref = (__bridge_retained CFStringRef)(s); - Emit migrator error when trying to cast to CF type the result of autorelease/release: for CFStringRef f3() { return (CFStringRef)[[[NSString alloc] init] autorelease]; } emits: t.m:12:10: error: [rewriter] it is not safe to cast to 'CFStringRef' the result of 'autorelease' message; a __bridge cast may result in a pointer to a destroyed object and a __bridge_retained may leak the object return (CFStringRef)[[[NSString alloc] init] autorelease]; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ t.m:12:3: note: [rewriter] remove the cast and change return type of function to 'NSString *' to have the object automatically autoreleased return (CFStringRef)[[[NSString alloc] init] autorelease]; ^ - Before changing attributes to weak/unsafe_unretained, check if the backing ivar is set to a +1 object, in which case use 'strong' instead. llvm-svn: 136208
2011-07-27 13:28:18 +08:00
@implementation Foo2
static id internal_var = 0;
+ (void)setIt:(id)newone {
if (internal_var != newone) {
internal_var = newone;
}
}
@end