diff options
Diffstat (limited to 'test/SemaObjC/arc.m')
| -rw-r--r-- | test/SemaObjC/arc.m | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/test/SemaObjC/arc.m b/test/SemaObjC/arc.m index bd30715..d89d035 100644 --- a/test/SemaObjC/arc.m +++ b/test/SemaObjC/arc.m @@ -4,6 +4,21 @@ typedef unsigned long NSUInteger; typedef const void * CFTypeRef; CFTypeRef CFBridgingRetain(id X); id CFBridgingRelease(CFTypeRef); +@protocol NSCopying @end +@interface NSDictionary ++ (id)dictionaryWithObjects:(const id [])objects forKeys:(const id <NSCopying> [])keys count:(NSUInteger)cnt; +- (void)setObject:(id)object forKeyedSubscript:(id)key; +@end +@class NSFastEnumerationState; +@protocol NSFastEnumeration +- (NSUInteger)countByEnumeratingWithState:(NSFastEnumerationState *)state objects:(id __unsafe_unretained [])buffer count:(NSUInteger)len; +@end +@interface NSNumber ++ (NSNumber *)numberWithInt:(int)value; +@end +@interface NSArray <NSFastEnumeration> ++ (id)arrayWithObjects:(const id [])objects count:(NSUInteger)cnt; +@end void test0(void (*fn)(int), int val) { fn(val); @@ -717,3 +732,27 @@ void _NSCalcBeze(NSColor* color, NSColor* bezelColors[]); // expected-error {{mu - 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 |
