File: warn-objc-literal-conversion.mm

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (74 lines) | stat: -rw-r--r-- 2,665 bytes parent folder | download | duplicates (36)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
// RUN: %clang_cc1 -fsyntax-only -verify -Wobjc-literal-conversion %s

@class NSString;

@interface NSNumber
+ (NSNumber *)numberWithChar:(char)value;
+ (NSNumber *)numberWithInt:(int)value;
+ (NSNumber *)numberWithLongLong:(long long)value;
+ (NSNumber *)numberWithFloat:(float)value;
+ (NSNumber *)numberWithDouble:(double)value;
+ (NSNumber *)numberWithBool:(bool)value;
@end

@interface NSArray
+ (id)arrayWithObjects:(const id [])objects count:(int)cnt;
@end

@interface NSDictionary
+ (id)dictionaryWithObjects:(const id [])objects forKeys:(const id [])keys count:(unsigned long)cnt;
@end

void char_test() {
  if (@'a') {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
}

void int_test() {
  if (@12) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
  if (@-12) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
  if (@12LL) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
  if (@-12LL) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
}

void float_test() {
  if (@12.55) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
  if (@-12.55) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
  if (@12.55F) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
  if (@-12.55F) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
}

void bool_test() {
  if (@true) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
  if (@false) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
}

void string_test() {
  if (@"asdf") {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
}

void array_test() {
  if (@[ @313, @331, @367, @379 ]) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
}

void dictionary_test() {
  if (@{ @0: @0, @1: @1, @2: @1, @3: @3 }) {}
  // expected-warning@-1{{implicit boolean conversion of Objective-C object literal always evaluates to true}}
}

void objc_bool_test () {
  if (__objc_yes) {}
  if (__objc_no) {}
}