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