forked from OSchip/llvm-project
759 lines
30 KiB
Objective-C
759 lines
30 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fobjc-runtime-has-weak -fsyntax-only -fobjc-arc -fblocks -verify -Wno-objc-root-class %s
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typedef unsigned long NSUInteger;
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typedef const void * CFTypeRef;
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CFTypeRef CFBridgingRetain(id X);
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id CFBridgingRelease(CFTypeRef);
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@protocol NSCopying @end
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@interface NSDictionary
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+ (id)dictionaryWithObjects:(const id [])objects forKeys:(const id <NSCopying> [])keys count:(NSUInteger)cnt;
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- (void)setObject:(id)object forKeyedSubscript:(id)key;
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@end
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@class NSFastEnumerationState;
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@protocol NSFastEnumeration
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- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id __unsafe_unretained [])buffer count:(NSUInteger)len;
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@end
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@interface NSNumber
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+ (NSNumber *)numberWithInt:(int)value;
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@end
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@interface NSArray <NSFastEnumeration>
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+ (id)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt;
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@end
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void test0(void (*fn)(int), int val) {
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fn(val);
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}
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@interface A
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- (id)retain;
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- (id)autorelease;
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- (oneway void)release;
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- (void)dealloc;
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- (NSUInteger)retainCount;
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@end
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void test1(A *a) {
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SEL s = @selector(retain); // expected-error {{ARC forbids use of 'retain' in a @selector}}
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s = @selector(release); // expected-error {{ARC forbids use of 'release' in a @selector}}
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s = @selector(autorelease); // expected-error {{ARC forbids use of 'autorelease' in a @selector}}
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s = @selector(dealloc); // expected-error {{ARC forbids use of 'dealloc' in a @selector}}
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[a dealloc]; // expected-error {{ARC forbids explicit message send of 'dealloc'}}
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[a retain]; // expected-error {{ARC forbids explicit message send of 'retain'}}
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[a retainCount]; // expected-error {{ARC forbids explicit message send of 'retainCount'}}
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[a release]; // expected-error {{ARC forbids explicit message send of 'release'}}
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[a autorelease]; // expected-error {{ARC forbids explicit message send of 'autorelease'}}
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}
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@interface Test2 : A
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- (void) dealloc;
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@end
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@implementation Test2
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- (void) dealloc {
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// This should maybe just be ignored. We're just going to warn about it for now.
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[super dealloc]; // expected-error {{ARC forbids explicit message send of 'dealloc'}}
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}
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@end
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// rdar://8843638
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@interface I
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- (id)retain; // expected-note {{method 'retain' declared here}}
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- (id)autorelease; // expected-note {{method 'autorelease' declared here}}
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- (oneway void)release; // expected-note {{method 'release' declared here}}
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- (NSUInteger)retainCount; // expected-note {{method 'retainCount' declared here}}
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@end
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@implementation I
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- (id)retain{return 0;} // expected-error {{ARC forbids implementation of 'retain'}}
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- (id)autorelease{return 0;} // expected-error {{ARC forbids implementation of 'autorelease'}}
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- (oneway void)release{} // expected-error {{ARC forbids implementation of 'release'}}
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- (NSUInteger)retainCount{ return 0; } // expected-error {{ARC forbids implementation of 'retainCount'}}
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@end
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@implementation I(CAT)
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- (id)retain{return 0;} // expected-error {{ARC forbids implementation of 'retain'}} \
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// expected-warning {{category is implementing a method which will also be implemented by its primary class}}
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- (id)autorelease{return 0;} // expected-error {{ARC forbids implementation of 'autorelease'}} \
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// expected-warning {{category is implementing a method which will also be implemented by its primary class}}
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- (oneway void)release{} // expected-error {{ARC forbids implementation of 'release'}} \
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// expected-warning {{category is implementing a method which will also be implemented by its primary class}}
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- (NSUInteger)retainCount{ return 0; } // expected-error {{ARC forbids implementation of 'retainCount'}} \
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// expected-warning {{category is implementing a method which will also be implemented by its primary class}}
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@end
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// rdar://8861761
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@interface B
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-(id)alloc;
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- (id)initWithInt: (int) i;
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@end
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void rdar8861761() {
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B *o1 = [[B alloc] initWithInt:0];
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B *o2 = [B alloc];
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[o2 initWithInt:0]; // expected-warning {{expression result unused}}
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}
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// rdar://8925835
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@interface rdar8925835
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- (void)foo:(void (^)(unsigned captureCount, I * const capturedStrings[captureCount]))block;
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@end
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void test5() {
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extern void test5_helper(__autoreleasing id *);
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id x;
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// Okay because of magic temporaries.
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test5_helper(&x);
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__autoreleasing id *a = &x; // expected-error {{initializing '__autoreleasing id *' with an expression of type '__strong id *' changes retain/release properties of pointer}}
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a = &x; // expected-error {{assigning '__strong id *' to '__autoreleasing id *' changes retain/release properties of pointer}}
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extern void test5_helper2(id const *);
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test5_helper2(&x);
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extern void test5_helper3(__weak id *); // expected-note {{passing argument to parameter here}}
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test5_helper3(&x); // expected-error {{passing '__strong id *' to parameter of type '__weak id *' changes retain/release properties of pointer}}
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}
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// rdar://problem/8937869
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void test6(unsigned cond) {
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switch (cond) {
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case 0:
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;
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id x; // expected-note {{jump bypasses initialization of retaining variable}}
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case 1: // expected-error {{switch case is in protected scope}}
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break;
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}
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}
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@class NSError;
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void test7(void) {
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extern void test7_helper(NSError **);
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NSError *err;
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test7_helper(&err);
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}
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void test7_weak(void) {
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extern void test7_helper(NSError **);
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__weak NSError *err;
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test7_helper(&err);
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}
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void test7_unsafe(void) {
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extern void test7_helper(NSError **); // expected-note {{passing argument to parameter here}}
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__unsafe_unretained NSError *err;
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test7_helper(&err); // expected-error {{passing 'NSError *__unsafe_unretained *' to parameter of type 'NSError *__autoreleasing *' changes retain/release properties of pointer}}
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}
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@class Test8_incomplete;
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@interface Test8_complete @end;
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@interface Test8_super @end;
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@interface Test8 : Test8_super
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- (id) init00;
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- (id) init01; // expected-note {{declaration in interface}} \
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// expected-note{{overridden method}}
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- (id) init02; // expected-note{{overridden method}}
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- (id) init03; // covariance
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- (id) init04; // covariance
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- (id) init05; // expected-note{{overridden method}}
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- (void) init10; // expected-note {{declaration in interface is not in the 'init' family because its result type is not an object pointer}}
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- (void) init11;
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- (void) init12;
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- (void) init13; // expected-note {{declaration in interface is not in the 'init' family because its result type is not an object pointer}}
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- (void) init14; // expected-note {{declaration in interface is not in the 'init' family because its result type is not an object pointer}}
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- (void) init15;
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// These should be invalid to actually call.
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- (Test8_incomplete*) init20;
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- (Test8_incomplete*) init21; // expected-note {{declaration in interface}}
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- (Test8_incomplete*) init22;
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- (Test8_incomplete*) init23;
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- (Test8_incomplete*) init24;
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- (Test8_incomplete*) init25;
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- (Test8_super*) init30; // id exception to covariance
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- (Test8_super*) init31; // expected-note {{declaration in interface}} \
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// expected-note{{overridden method}}
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- (Test8_super*) init32; // expected-note{{overridden method}}
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- (Test8_super*) init33;
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- (Test8_super*) init34; // covariance
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- (Test8_super*) init35; // expected-note{{overridden method}}
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- (Test8*) init40; // id exception to covariance
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- (Test8*) init41; // expected-note {{declaration in interface}} \
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// expected-note{{overridden method}}
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- (Test8*) init42; // expected-note{{overridden method}}
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- (Test8*) init43; // this should be a warning, but that's a general language thing, not an ARC thing
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- (Test8*) init44;
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- (Test8*) init45; // expected-note{{overridden method}}
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- (Test8_complete*) init50; // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_complete*) init51; // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_complete*) init52; // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_complete*) init53; // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_complete*) init54; // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_complete*) init55; // expected-error {{init methods must return a type related to the receiver type}}
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@end
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@implementation Test8
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- (id) init00 { return 0; }
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- (id) init10 { return 0; } // expected-error {{method implementation does not match its declaration}}
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- (id) init20 { return 0; }
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- (id) init30 { return 0; }
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- (id) init40 { return 0; }
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- (id) init50 { return 0; }
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- (void) init01 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'void'}}
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- (void) init11 {}
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- (void) init21 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}}
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- (void) init31 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'void'}}
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- (void) init41 {} // expected-error {{method was declared as an 'init' method, but its implementation doesn't match because its result type is not an object pointer}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'void'}}
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- (void) init51 {}
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- (Test8_incomplete*) init02 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_incomplete *'}}
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- (Test8_incomplete*) init12 { return 0; } // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_incomplete*) init22 { return 0; } // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_incomplete*) init32 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_incomplete *'}}
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- (Test8_incomplete*) init42 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_incomplete *'}}
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- (Test8_incomplete*) init52 { return 0; } // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_super*) init03 { return 0; }
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- (Test8_super*) init13 { return 0; } // expected-error {{method implementation does not match its declaration}}
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- (Test8_super*) init23 { return 0; }
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- (Test8_super*) init33 { return 0; }
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- (Test8_super*) init43 { return 0; }
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- (Test8_super*) init53 { return 0; }
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- (Test8*) init04 { return 0; }
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- (Test8*) init14 { return 0; } // expected-error {{method implementation does not match its declaration}}
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- (Test8*) init24 { return 0; }
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- (Test8*) init34 { return 0; }
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- (Test8*) init44 { return 0; }
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- (Test8*) init54 { return 0; }
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- (Test8_complete*) init05 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_complete *'}}
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- (Test8_complete*) init15 { return 0; } // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_complete*) init25 { return 0; } // expected-error {{init methods must return a type related to the receiver type}}
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- (Test8_complete*) init35 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_complete *'}}
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- (Test8_complete*) init45 { return 0; } // expected-error {{init methods must return a type related to the receiver type}} \
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// expected-warning{{method is expected to return an instance of its class type 'Test8', but is declared to return 'Test8_complete *'}}
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- (Test8_complete*) init55 { return 0; } // expected-error {{init methods must return a type related to the receiver type}}
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@end
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@class Test9_incomplete;
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@interface Test9
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- (Test9_incomplete*) init1; // expected-error {{init methods must return a type related to the receiver type}}
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- (Test9_incomplete*) init2;
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@end
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id test9(Test9 *v) {
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return [v init1];
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}
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// Test that the inference rules are different for fast enumeration variables.
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void test10(id collection) {
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for (id x in collection) {
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__strong id *ptr = &x; // expected-warning {{initializing '__strong id *' with an expression of type 'const __strong id *' discards qualifiers}}
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}
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for (__strong id x in collection) {
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__weak id *ptr = &x; // expected-error {{initializing '__weak id *' with an expression of type '__strong id *' changes retain/release properties of pointer}}
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}
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}
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// rdar://problem/9078626
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#define nil ((void*) 0)
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void test11(id op, void *vp) {
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_Bool b;
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b = (op == nil);
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b = (nil == op);
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b = (vp == nil);
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b = (nil == vp);
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b = (vp == op); // expected-error {{implicit conversion of Objective-C pointer type 'id' to C pointer type 'void *' requires a bridged cast}} expected-note {{use __bridge}} expected-note {{use CFBridgingRetain call}}
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b = (op == vp); // expected-error {{implicit conversion of C pointer type 'void *' to Objective-C pointer type 'id' requires a bridged cast}} expected-note {{use __bridge}} expected-note {{use CFBridgingRelease call}}
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}
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void test12(id collection) {
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for (id x in collection) {
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x = 0; // expected-error {{fast enumeration variables can't be modified in ARC by default; declare the variable __strong to allow this}}
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}
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for (const id x in collection) {
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x = 0; // expected-error {{read-only variable is not assignable}}
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}
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for (__strong id x in collection) {
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x = 0;
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}
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}
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@interface Test13
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- (id) init0;
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- (void) noninit;
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@end
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@implementation Test13
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- (id) init0 {
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self = 0;
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}
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- (void) noninit {
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self = 0; // expected-error {{cannot assign to 'self' outside of a method in the init family}}
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}
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@end
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// <rdar://problem/10274056>
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@interface Test13_B
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- (id) consumesSelf __attribute__((ns_consumes_self));
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@end
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@implementation Test13_B
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- (id) consumesSelf {
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self = 0; // no-warning
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}
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@end
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// rdar://problem/9172151
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@class Test14A, Test14B;
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void test14() {
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extern void test14_consume(id *);
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extern int test14_cond(void);
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extern float test14_nowriteback(id __autoreleasing const *); // expected-note{{passing argument to parameter here}}
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Test14A *a;
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Test14B *b;
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id i;
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id cla[10];
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id vla[test14_cond() + 10];
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test14_consume((__strong id*) &a);
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test14_consume((test14_cond() ? (__strong id*) &b : &i));
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test14_consume(test14_cond() ? 0 : &a);
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test14_consume(test14_cond() ? (void*) 0 : (&a));
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test14_consume(cla); // expected-error {{passing address of non-scalar object to __autoreleasing parameter for write-back}}
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test14_consume(vla); // expected-error {{passing address of non-scalar object to __autoreleasing parameter for write-back}}
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test14_consume(&cla[5]); // expected-error {{passing address of non-scalar object to __autoreleasing parameter for write-back}}
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__strong id *test14_indirect(void);
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test14_consume(test14_indirect()); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}}
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extern id test14_global;
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test14_consume(&test14_global); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}}
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extern __strong id *test14_global_ptr;
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test14_consume(test14_global_ptr); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}}
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static id static_local;
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test14_consume(&static_local); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}}
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__weak id* wip;
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test14_nowriteback(&static_local); // okay, not a write-back.
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test14_nowriteback(wip); // expected-error{{passing '__weak id *' to parameter of type '__autoreleasing id const *' changes retain/release properties of pointer}}
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}
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void test15() {
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__block __autoreleasing id x; // expected-error {{__block variables cannot have __autoreleasing ownership}}
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}
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struct Test16;
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@interface Test16a
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- (void) test16_0: (int) x;
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- (int) test16_1: (int) x; // expected-note {{one possibility}}
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- (int) test16_2: (int) x; // expected-note {{one possibility}}
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- (id) test16_3: (int) x __attribute__((ns_returns_retained)); // expected-note {{one possibility}}
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- (void) test16_4: (int) x __attribute__((ns_consumes_self)); // expected-note {{one possibility}}
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- (void) test16_5: (id) __attribute__((ns_consumed)) x; // expected-note {{one possibility}}
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- (void) test16_6: (id) x;
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@end
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@interface Test16b
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- (void) test16_0: (int) x;
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- (int) test16_1: (char*) x; // expected-note {{also found}}
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- (char*) test16_2: (int) x; // expected-note {{also found}}
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- (id) test16_3: (int) x; // expected-note {{also found}}
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- (void) test16_4: (int) x; // expected-note {{also found}}
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- (void) test16_5: (id) x; // expected-note {{also found}}
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- (void) test16_6: (struct Test16 *) x;
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@end
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void test16(void) {
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id v;
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[v test16_0: 0];
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[v test16_1: 0]; // expected-error {{multiple methods named 'test16_1:' found with mismatched result, parameter type or attributes}}
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[v test16_2: 0]; // expected-error {{multiple methods named}}
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[v test16_3: 0]; // expected-error {{multiple methods named}}
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[v test16_4: 0]; // expected-error {{multiple methods named}}
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[v test16_5: 0]; // expected-error {{multiple methods named}}
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[v test16_6: 0];
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}
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@class Test17; // expected-note 2{{forward declaration of class here}}
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@protocol Test17p
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- (void) test17;
|
|
+ (void) test17;
|
|
@end
|
|
void test17(void) {
|
|
Test17 *v0;
|
|
[v0 test17]; // expected-error {{receiver type 'Test17' for instance message is a forward declaration}}
|
|
|
|
Test17<Test17p> *v1;
|
|
[v1 test17]; // expected-error {{receiver type 'Test17<Test17p>' for instance message is a forward declaration}}
|
|
|
|
[Test17 test17]; // expected-error {{receiver 'Test17' for class message is a forward declaration}}
|
|
}
|
|
|
|
void test18(void) {
|
|
id x;
|
|
[x test18]; // expected-error {{no known instance method for selector 'test18'}}
|
|
}
|
|
|
|
extern struct Test19 *test19a;
|
|
struct Test19 *const test19b = 0;
|
|
void test19(void) {
|
|
id x;
|
|
x = (id) test19a; // expected-error {{bridged cast}} \
|
|
// expected-note{{use __bridge to convert directly (no change in ownership)}} \
|
|
// expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'struct Test19 *' into ARC}}
|
|
x = (id) test19b; // expected-error {{bridged cast}} \
|
|
// expected-note{{use __bridge to convert directly (no change in ownership)}} \
|
|
// expected-note{{use CFBridgingRelease call to transfer ownership of a +1 'struct Test19 *' into ARC}}
|
|
}
|
|
|
|
// rdar://problem/8951453
|
|
static __thread id test20_implicit; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}}
|
|
static __thread __strong id test20_strong; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}}
|
|
static __thread __weak id test20_weak; // expected-error {{thread-local variable has non-trivial ownership: type is '__weak id'}}
|
|
static __thread __autoreleasing id test20_autoreleasing; // expected-error {{thread-local variable has non-trivial ownership: type is '__autoreleasing id'}} expected-error {{global variables cannot have __autoreleasing ownership}}
|
|
static __thread __unsafe_unretained id test20_unsafe;
|
|
void test20(void) {
|
|
static __thread id test20_implicit; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}}
|
|
static __thread __strong id test20_strong; // expected-error {{thread-local variable has non-trivial ownership: type is '__strong id'}}
|
|
static __thread __weak id test20_weak; // expected-error {{thread-local variable has non-trivial ownership: type is '__weak id'}}
|
|
static __thread __autoreleasing id test20_autoreleasing; // expected-error {{thread-local variable has non-trivial ownership: type is '__autoreleasing id'}} expected-error {{global variables cannot have __autoreleasing ownership}}
|
|
static __thread __unsafe_unretained id test20_unsafe;
|
|
}
|
|
|
|
// rdar://9310049
|
|
_Bool fn(id obj) {
|
|
return (_Bool)obj;
|
|
}
|
|
|
|
// Check casting w/ ownership qualifiers.
|
|
void test21() {
|
|
__strong id *sip;
|
|
(void)(__weak id *)sip; // expected-error{{casting '__strong id *' to type '__weak id *' changes retain/release properties of pointer}}
|
|
(void)(__weak const id *)sip; // expected-error{{casting '__strong id *' to type '__weak id const *' changes retain/release properties of pointer}}
|
|
(void)(__autoreleasing id *)sip; // expected-error{{casting '__strong id *' to type '__autoreleasing id *' changes retain/release properties of pointer}}
|
|
(void)(__autoreleasing const id *)sip; // okay
|
|
}
|
|
|
|
// rdar://problem/9340462
|
|
void test22(id x[]) { // expected-error {{must explicitly describe intended ownership of an object array parameter}}
|
|
}
|
|
|
|
// rdar://problem/9400219
|
|
void test23(void) {
|
|
void *ptr;
|
|
ptr = @"foo";
|
|
ptr = (ptr ? @"foo" : 0);
|
|
ptr = (ptr ? @"foo" : @"bar");
|
|
}
|
|
|
|
id test24(void) {
|
|
extern void test24_helper(void);
|
|
return test24_helper(), (void*) 0;
|
|
}
|
|
|
|
// rdar://9400841
|
|
@interface Base
|
|
@property (assign) id content;
|
|
@end
|
|
|
|
@interface Foo : Base
|
|
-(void)test;
|
|
@end
|
|
|
|
@implementation Foo
|
|
-(void)test {
|
|
super.content = 0;
|
|
}
|
|
@end
|
|
|
|
// <rdar://problem/9398437>
|
|
void test25(Class *classes) {
|
|
Class *other_classes;
|
|
test25(other_classes);
|
|
}
|
|
|
|
void test26(id y) {
|
|
extern id test26_var1;
|
|
__sync_swap(&test26_var1, 0, y); // expected-error {{cannot perform atomic operation on a pointer to type '__strong id': type has non-trivial ownership}}
|
|
|
|
extern __unsafe_unretained id test26_var2;
|
|
__sync_swap(&test26_var2, 0, y);
|
|
}
|
|
|
|
@interface Test26
|
|
- (id) init;
|
|
- (id) initWithInt: (int) x;
|
|
@end
|
|
@implementation Test26
|
|
- (id) init { return self; }
|
|
- (id) initWithInt: (int) x {
|
|
[self init]; // expected-error {{the result of a delegate init call must be immediately returned or assigned to 'self'}}
|
|
return self;
|
|
}
|
|
@end
|
|
|
|
// rdar://9525555
|
|
@interface Test27 {
|
|
__weak id _myProp1;
|
|
id myProp2;
|
|
}
|
|
@property id x;
|
|
@property (readonly) id ro;
|
|
@property (readonly) id custom_ro;
|
|
@property int y;
|
|
|
|
@property (readonly) __weak id myProp1;
|
|
@property (readonly) id myProp2;
|
|
@property (readonly) __strong id myProp3;
|
|
@end
|
|
|
|
@implementation Test27
|
|
@synthesize x;
|
|
@synthesize ro;
|
|
@synthesize y;
|
|
|
|
@synthesize myProp1 = _myProp1;
|
|
@synthesize myProp2;
|
|
@synthesize myProp3;
|
|
|
|
-(id)custom_ro { return 0; }
|
|
@end
|
|
|
|
// rdar://9569264
|
|
@interface Test28
|
|
@property (nonatomic, assign) __strong id a; // expected-error {{unsafe_unretained property 'a' may not also be declared __strong}}
|
|
@end
|
|
|
|
@interface Test28 ()
|
|
@property (nonatomic, assign) __strong id b; // expected-error {{unsafe_unretained property 'b' may not also be declared __strong}}
|
|
@end
|
|
|
|
@implementation Test28
|
|
@synthesize a;
|
|
@synthesize b;
|
|
@end
|
|
|
|
// rdar://9573962
|
|
typedef struct Bark Bark;
|
|
@interface Test29
|
|
@property Bark* P;
|
|
@end
|
|
|
|
@implementation Test29
|
|
@synthesize P;
|
|
- (id)Meth {
|
|
Bark** f = &P;
|
|
return 0;
|
|
}
|
|
@end
|
|
|
|
// rdar://9495837
|
|
@interface Test30
|
|
+ (id) new;
|
|
- (void)Meth;
|
|
@end
|
|
|
|
@implementation Test30
|
|
+ (id) new { return 0; }
|
|
- (void) Meth {
|
|
__weak id x = [Test30 new]; // expected-warning {{assigning retained object to weak variable}}
|
|
id __unsafe_unretained u = [Test30 new]; // expected-warning {{assigning retained object to unsafe_unretained variable}}
|
|
id y = [Test30 new];
|
|
x = [Test30 new]; // expected-warning {{assigning retained object to weak variable}}
|
|
u = [Test30 new]; // expected-warning {{assigning retained object to unsafe_unretained variable}}
|
|
y = [Test30 new];
|
|
}
|
|
@end
|
|
|
|
// rdar://9411838
|
|
@protocol PTest31 @end
|
|
|
|
int Test31() {
|
|
Class cls;
|
|
id ids;
|
|
id<PTest31> pids;
|
|
Class<PTest31> pcls;
|
|
|
|
int i = (ids->isa ? 1 : 0); // expected-error {{member reference base type 'id' is not a structure or union}}
|
|
int j = (pids->isa ? 1 : 0); // expected-error {{member reference base type 'id<PTest31>' is not a structure or union}}
|
|
int k = (pcls->isa ? i : j); // expected-error {{member reference base type 'Class<PTest31>' is not a structure or union}}
|
|
return cls->isa ? i : j; // expected-error {{member reference base type 'Class' is not a structure or union}}
|
|
}
|
|
|
|
// rdar://9612030
|
|
@interface ITest32 {
|
|
@public
|
|
id ivar;
|
|
}
|
|
@end
|
|
|
|
id Test32(__weak ITest32 *x) {
|
|
__weak ITest32 *y;
|
|
x->ivar = 0; // expected-error {{dereferencing a __weak pointer is not allowed}}
|
|
return y ? y->ivar // expected-error {{dereferencing a __weak pointer is not allowed}}
|
|
: (*x).ivar; // expected-error {{dereferencing a __weak pointer is not allowed}}
|
|
}
|
|
|
|
// rdar://9619861
|
|
extern int printf(const char*, ...);
|
|
typedef long intptr_t;
|
|
|
|
int Test33(id someid) {
|
|
printf( "Hello%ld", (intptr_t)someid);
|
|
return (int)someid;
|
|
}
|
|
|
|
// rdar://9636091
|
|
@interface I34
|
|
@property (nonatomic, retain) id newName __attribute__((ns_returns_not_retained)) ;
|
|
|
|
@property (nonatomic, retain) id newName1 __attribute__((ns_returns_not_retained)) ;
|
|
- (id) newName1 __attribute__((ns_returns_not_retained));
|
|
|
|
@property (nonatomic, retain) id newName2 __attribute__((ns_returns_not_retained)); // expected-note {{roperty declared here}}
|
|
- (id) newName2; // expected-warning {{property declared as returning non-retained objects; getter returning retained objects}}
|
|
@end
|
|
|
|
@implementation I34
|
|
@synthesize newName;
|
|
|
|
@synthesize newName1;
|
|
- (id) newName1 { return 0; }
|
|
|
|
@synthesize newName2;
|
|
@end
|
|
|
|
void test35(void) {
|
|
extern void test36_helper(id*);
|
|
id x;
|
|
__strong id *xp = 0;
|
|
|
|
test36_helper(&x);
|
|
test36_helper(xp); // expected-error {{passing address of non-local object to __autoreleasing parameter for write-back}}
|
|
|
|
// rdar://problem/9665710
|
|
__block id y;
|
|
test36_helper(&y);
|
|
^{ test36_helper(&y); }();
|
|
|
|
__strong int non_objc_type; // expected-warning {{'__strong' only applies to Objective-C object or block pointer types}}
|
|
}
|
|
|
|
void test36(int first, ...) {
|
|
// <rdar://problem/9758798>
|
|
__builtin_va_list arglist;
|
|
__builtin_va_start(arglist, first);
|
|
id obj = __builtin_va_arg(arglist, id);
|
|
__builtin_va_end(arglist);
|
|
}
|
|
|
|
@class Test37; // expected-note{{forward declaration of class here}}
|
|
void test37(Test37 *c) {
|
|
for (id y in c) { // expected-error {{collection expression type 'Test37' is a forward declaration}}
|
|
(void) y;
|
|
}
|
|
|
|
(void)sizeof(id*); // no error.
|
|
}
|
|
|
|
// rdar://problem/9887979
|
|
@interface Test38
|
|
@property int value;
|
|
@end
|
|
void test38() {
|
|
extern Test38 *test38_helper(void);
|
|
switch (test38_helper().value) {
|
|
case 0:
|
|
case 1:
|
|
;
|
|
}
|
|
}
|
|
|
|
// rdar://10186536
|
|
@class NSColor;
|
|
void _NSCalc(NSColor* color, NSColor* bezelColors[]) __attribute__((unavailable("not available in automatic reference counting mode")));
|
|
|
|
void _NSCalcBeze(NSColor* color, NSColor* bezelColors[]); // expected-error {{must explicitly describe intended ownership of an object array parameter}}
|
|
|
|
// rdar://9970739
|
|
@interface RestaurantTableViewCell
|
|
- (void) restaurantLocation;
|
|
@end
|
|
|
|
@interface Radar9970739
|
|
- (void) Meth;
|
|
@end
|
|
|
|
@implementation Radar9970739
|
|
- (void) Meth {
|
|
RestaurantTableViewCell *cell;
|
|
[cell restaurantLocatoin]; // expected-error {{no visible @interface for 'RestaurantTableViewCell' declares the selector 'restaurantLocatoin'}}
|
|
}
|
|
@end
|
|
|
|
// rdar://11814185
|
|
@interface Radar11814185
|
|
@property (nonatomic, weak) Radar11814185* picker1;
|
|
+ alloc;
|
|
- init;
|
|
@end
|
|
|
|
@implementation Radar11814185
|
|
|
|
@synthesize picker1;
|
|
|
|
- (void)viewDidLoad
|
|
{
|
|
picker1 = [[Radar11814185 alloc] init]; // expected-warning {{assigning retained object to weak variable; object will be released after assignment}}
|
|
self.picker1 = [[Radar11814185 alloc] init]; // expected-warning {{assigning retained object to weak property; object will be released after assignment}}
|
|
}
|
|
|
|
+ alloc { return 0; }
|
|
- init { return 0; }
|
|
@end
|
|
|
|
// <rdar://problem/12569201>. Warn on cases of initializing a weak variable
|
|
// with an Objective-C object literal.
|
|
void rdar12569201(id key, id value) {
|
|
// Declarations.
|
|
__weak id x = @"foo"; // no-warning
|
|
__weak id y = @{ key : value }; // expected-warning {{assigning dictionary literal to a weak variable; object will be released after assignment}}
|
|
__weak id z = @[ value ]; // expected-warning {{assigning array literal to a weak variable; object will be released after assignment}}
|
|
__weak id b = ^() {}; // expected-warning {{assigning block literal to a weak variable; object will be released after assignment}}
|
|
__weak id n = @42; // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}}
|
|
__weak id e = @(42); // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}}
|
|
__weak id m = @(41 + 1); // expected-warning {{assigning boxed expression to a weak variable; object will be released after assignment}}
|
|
|
|
// Assignments.
|
|
y = @{ key : value }; // expected-warning {{assigning dictionary literal to a weak variable; object will be released after assignment}}
|
|
z = @[ value ]; // expected-warning {{assigning array literal to a weak variable; object will be released after assignment}}
|
|
b = ^() {}; // expected-warning {{assigning block literal to a weak variable; object will be released after assignment}}
|
|
n = @42; // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}}
|
|
e = @(42); // expected-warning {{assigning numeric literal to a weak variable; object will be released after assignment}}
|
|
m = @(41 + 1); // expected-warning {{assigning boxed expression to a weak variable; object will be released after assignment}}
|
|
}
|
|
|
|
@interface C
|
|
- (void)method:(id[])objects; // expected-error{{must explicitly describe intended ownership of an object array parameter}}
|
|
@end
|