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1// RUN: not %clang_cc1 -fsyntax-only -fblocks -fobjc-arc -Wno-objc-root-class %s 2>&1 | FileCheck --check-prefix=CHECK-ARC %s2// RUN: not %clang_cc1 -fsyntax-only -fblocks -Wno-objc-root-class %s 2>&1 | FileCheck %s3 4extern void doSomething(void);5 6@interface Test7{8@public9 void (^aBlock)(void);10}11@property (retain) void (^aBlock)(void);12@property (weak, retain) void (^aBlockW)(void);13@property (strong, retain) void (^aBlockS)(void); // OK14@property (readonly, retain) void (^aBlockR)(void); // OK15@property (copy, retain) void (^aBlockC)(void);16@property (assign, retain) void (^aBlockA)(void);17@end18 19@implementation Test20@synthesize aBlock;21@dynamic aBlockW, aBlockS, aBlockR, aBlockC, aBlockA;22@end23 24int main(void) {25 Test *t;26 t.aBlock = ^{ doSomething(); };27 t.aBlockW = ^{ doSomething(); };28 t.aBlockS = ^{ doSomething(); };29}30 31// CHECK-ARC: 11:1: warning: retain'ed block property does not copy the block - use copy attribute instead32// CHECK-ARC: @property (retain) void (^aBlock)(void);33// CHECK-ARC: ^34// CHECK-ARC: 12:1: error: property attributes 'retain' and 'weak' are mutually exclusive35// CHECK-ARC: @property (weak, retain) void (^aBlockW)(void);36// CHECK-ARC: ^37// CHECK-ARC: 15:1: error: property attributes 'copy' and 'retain' are mutually exclusive38// CHECK-ARC: @property (copy, retain) void (^aBlockC)(void);39// CHECK-ARC: ^40// CHECK-ARC: 16:1: error: property attributes 'assign' and 'retain' are mutually exclusive41// CHECK-ARC: @property (assign, retain) void (^aBlockA)(void);42// CHECK-ARC: ^43// CHECK-ARC: 27:13: warning: assigning block literal to a weak property; object will be released after assignment44// CHECK-ARC: t.aBlockW = ^{ doSomething(); };45// CHECK-ARC: ^ ~~~~~~~~~~~~~~~~~~~46// CHECK-ARC: 2 warnings and 3 errors generated.47 48// CHECK: 11:1: warning: retain'ed block property does not copy the block - use copy attribute instead49// CHECK: @property (retain) void (^aBlock)(void);50// CHECK: ^51// CHECK: 12:1: error: property attributes 'retain' and 'weak' are mutually exclusive52// CHECK: @property (weak, retain) void (^aBlockW)(void);53// CHECK: ^54// CHECK: 15:1: error: property attributes 'copy' and 'retain' are mutually exclusive55// CHECK: @property (copy, retain) void (^aBlockC)(void);56// CHECK: ^57// CHECK: 16:1: error: property attributes 'assign' and 'retain' are mutually exclusive58// CHECK: @property (assign, retain) void (^aBlockA)(void);59// CHECK: ^60// CHECK: 1 warning and 3 errors generated.61