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// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -verify %s
// rdar://12056271
@class Thread;
__attribute__((objc_root_class))
@interface NSObject
- (id)performSelector:(SEL)sel;
- (void)performSelectorInBackground:(SEL)sel withObject:(id)arg;
- (void)performSelectorOnMainThread:(SEL)sel;
- (void)performSelectorOnMainThread:(SEL)aSelector
onThread:(Thread *)thread
withObject:(id)arg
waitUntilDone:(int)wait
modes:(id *)array;
@end
typedef struct { int x; int y; int width; int height; } Rectangle;
struct Struct { Rectangle r; };
typedef union { int x; float f; } Union;
@interface Base : NSObject
- (struct Struct)returnsStruct2; // expected-note {{method 'returnsStruct2' that returns 'struct Struct' declared here}}
- (Union)returnsId;
@end
@protocol IP
- (Union)returnsUnion; // expected-note 2 {{method 'returnsUnion' that returns 'Union' declared here}}
@end
typedef __attribute__((__ext_vector_type__(3))) float float3;
typedef int int4 __attribute__ ((vector_size (16)));
@interface I : Base<IP>
- (Rectangle)returnsStruct; // expected-note 4 {{method 'returnsStruct' that returns 'Rectangle' declared here}}
- (id)returnsId; // shadows base 'returnsId'
- (int)returnsInt;
- (I *)returnPtr;
- (float3)returnsExtVector; // expected-note {{method 'returnsExtVector' that returns 'float3' (vector of 3 'float' values) declared here}}
- (int4)returnsVector; // expected-note {{method 'returnsVector' that returns 'int4' (vector of 4 'int' values) declared here}}
+ (Rectangle)returnsStructClass; // expected-note 2 {{method 'returnsStructClass' that returns 'Rectangle' declared here}}
+ (void)returnsUnion; // Not really
@end
void foo(I *i) {
[i performSelector: @selector(returnsStruct)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a struct type}}
[i performSelectorInBackground: @selector(returnsStruct) withObject:0]; // expected-warning {{'performSelectorInBackground:withObject:' is incompatible with selectors that return a struct type}}
[i performSelector: ((@selector(returnsUnion)))]; // expected-warning {{'performSelector:' is incompatible with selectors that return a union type}}
[i performSelectorOnMainThread: @selector(returnsStruct2)]; // expected-warning {{'performSelectorOnMainThread:' is incompatible with selectors that return a struct type}}
[I performSelector: (@selector(returnsStructClass))]; // expected-warning {{'performSelector:' is incompatible with selectors that return a struct type}}
[i performSelector: @selector(returnsId)];
[i performSelector: @selector(returnsInt)];
[i performSelector: @selector(returnsPtr)];
[I performSelector: @selector(returnsUnion)]; // No warning expected
id obj = i;
[obj performSelector: @selector(returnsId)];
[obj performSelector: @selector(returnsStruct)];
}
@interface SubClass: I
@end
@interface SubClass ()
- (struct Struct)returnsSubStructExt; // expected-note {{method 'returnsSubStructExt' that returns 'struct Struct' declared here}} expected-note {{method 'returnsSubStructExt' declared here}}
@end
@implementation SubClass // expected-warning {{method definition for 'returnsSubStructExt' not found}}
- (struct Struct)returnsSubStructImpl { // expected-note {{method 'returnsSubStructImpl' that returns 'struct Struct' declared here}}
struct Struct Result;
return Result;
}
- (void)checkPrivateCalls {
[self performSelector: @selector(returnsSubStructExt)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a struct type}}
[self performSelector: @selector(returnsSubStructImpl)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a struct type}}
}
- (void)checkSuperCalls {
[super performSelector: @selector(returnsStruct)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a struct type}}
[super performSelectorInBackground: @selector(returnsUnion) withObject: self]; // expected-warning {{'performSelectorInBackground:withObject:' is incompatible with selectors that return a union type}}
[super performSelector: @selector(returnsId)];
}
+ (struct Struct)returnsSubStructClassImpl { // expected-note {{method 'returnsSubStructClassImpl' that returns 'struct Struct' declared here}}
struct Struct Result;
return Result;
}
+ (void)checkClassPrivateCalls {
[self performSelector: @selector(returnsSubStructClassImpl)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a struct type}}
}
+ (void)checkClassSuperCalls {
[super performSelector: @selector(returnsStructClass)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a struct type}}
[super performSelector: @selector(returnsUnion)]; // No warning expected
}
@end
@implementation I (LongPerformSelectors)
- (void)checkLongCallsFromCategory {
[self performSelectorOnMainThread: @selector(returnsStruct) onThread:0 withObject:self waitUntilDone:1 modes:0]; // expected-warning {{'performSelectorOnMainThread:onThread:withObject:waitUntilDone:modes:' is incompatible with selectors that return a struct type}}
}
- (void)checkVectorReturn {
[self performSelector: @selector(returnsExtVector)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a vector type}}
[self performSelector: @selector(returnsVector)]; // expected-warning {{'performSelector:' is incompatible with selectors that return a vector type}}
}
@end
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