1// RUN: %clang_cc1 -fsyntax-only -verify -Wparentheses -Wno-objc-root-class %s 2 3// Don't warn about some common ObjC idioms unless we have -Widiomatic-parentheses on. 4// <rdar://problem/7382435> 5 6@interface Object 7{ 8 unsigned uid; 9} 10- (id) init; 11- (id) initWithInt: (int) i; 12- (id) myInit __attribute__((objc_method_family(init))); 13- (void) iterate: (id) coll; 14- (id) nextObject; 15@property unsigned uid; 16@end 17 18@implementation Object 19@synthesize uid; 20- (id) init { 21 if (self = [self init]) { 22 } 23 return self; 24} 25 26- (id) initWithInt: (int) i { 27 if (self = [self initWithInt: i]) { 28 } 29 // rdar://11066598 30 if (self.uid = 100) { // expected-warning {{using the result of an assignment as a condition without parentheses}} \ 31 // expected-note {{place parentheses around the assignment to silence this warning}} \ 32 // expected-note {{use '==' to turn this assignment into an equality comparison}} 33 // ... 34 } 35 return self; 36} 37 38- (id) myInit { 39 if (self = [self myInit]) { 40 } 41 return self; 42} 43 44- (void) iterate: (id) coll { 45 id cur; 46 while (cur = [coll nextObject]) { 47 } 48} 49 50- (id) nextObject { 51 return self; 52} 53@end 54