84 lines
2.4 KiB
Objective-C
84 lines
2.4 KiB
Objective-C
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s
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// expected-no-diagnostics
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// This test case tests the default behavior.
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// rdar://7933061
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@interface NSObject @end
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@interface NSArray : NSObject @end
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@interface MyClass : NSObject {
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}
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- (void)myMethod:(NSArray *)object;
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- (void)myMethod1:(NSObject *)object; // broken-note {{previous definition is here}}
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@end
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@implementation MyClass
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- (void)myMethod:(NSObject *)object {
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}
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- (void)myMethod1:(NSArray *)object { // broken-warning {{conflicting parameter types in implementation of 'myMethod1:': 'NSObject *' vs 'NSArray *'}}
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}
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@end
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@protocol MyProtocol @end
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@interface MyOtherClass : NSObject <MyProtocol> {
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}
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- (void)myMethod:(id <MyProtocol>)object; // broken-note {{previous definition is here}}
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- (void)myMethod1:(id <MyProtocol>)object; // broken-note {{previous definition is here}}
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@end
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@implementation MyOtherClass
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- (void)myMethod:(MyClass *)object { // broken-warning {{conflicting parameter types in implementation of 'myMethod:': 'id<MyProtocol>' vs 'MyClass *'}}
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}
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- (void)myMethod1:(MyClass<MyProtocol> *)object { // broken-warning {{conflicting parameter types in implementation of 'myMethod1:': 'id<MyProtocol>' vs 'MyClass<MyProtocol> *'}}
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}
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@end
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@interface A @end
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@interface B : A @end
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@interface Test1 {}
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- (void) test1:(A*) object; // broken-note {{previous definition is here}}
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- (void) test2:(B*) object;
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@end
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@implementation Test1
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- (void) test1:(B*) object {} // broken-warning {{conflicting parameter types in implementation of 'test1:': 'A *' vs 'B *'}}
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- (void) test2:(A*) object {}
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@end
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// rdar://problem/8597621 wants id -> A* to be an exception
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@interface Test2 {}
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- (void) test1:(id) object; // broken-note {{previous definition is here}}
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- (void) test2:(A*) object;
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@end
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@implementation Test2
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- (void) test1:(A*) object {} // broken-warning {{conflicting parameter types in implementation of 'test1:': 'id' vs 'A *'}}
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- (void) test2:(id) object {}
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@end
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@interface Test3 {}
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- (A*) test1;
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- (B*) test2; // broken-note {{previous definition is here}}
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@end
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@implementation Test3
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- (B*) test1 { return 0; }
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- (A*) test2 { return 0; } // broken-warning {{conflicting return type in implementation of 'test2': 'B *' vs 'A *'}}
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@end
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// The particular case of overriding with an id return is white-listed.
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@interface Test4 {}
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- (id) test1;
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- (A*) test2;
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@end
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@implementation Test4
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- (A*) test1 { return 0; } // id -> A* is rdar://problem/8596987
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- (id) test2 { return 0; }
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@end
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