File: ivar-ref-misuse.m

package info (click to toggle)
llvm-toolchain-3.4 1%3A3.4.2-13
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 253,236 kB
  • ctags: 276,203
  • sloc: cpp: 1,665,580; ansic: 298,647; asm: 206,157; objc: 84,350; python: 73,119; sh: 23,466; perl: 5,679; makefile: 5,542; ml: 5,250; pascal: 2,467; lisp: 1,420; xml: 679; cs: 236; csh: 117
file content (41 lines) | stat: -rw-r--r-- 1,110 bytes parent folder | download | duplicates (39)
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
// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s

@interface Sprite {
  int sprite, spree;
  int UseGlobalBar;
}
+ (void)setFoo:(int)foo;
+ (void)setSprite:(int)sprite;
- (void)setFoo:(int)foo;
- (void)setSprite:(int)sprite;
@end

int spree = 23;
int UseGlobalBar;

@implementation Sprite
+ (void)setFoo:(int)foo {
  sprite = foo;   // expected-error {{instance variable 'sprite' accessed in class method}}
  spree = foo;
  Xsprite = foo; // expected-error {{use of undeclared identifier 'Xsprite'}}
  UseGlobalBar = 10;
}
+ (void)setSprite:(int)sprite {
  int spree;
  sprite = 15;
  spree = 17;
  ((Sprite *)self)->sprite = 16;   /* NB: This is how one _should_ access */
  ((Sprite *)self)->spree = 18;    /* ivars from within class methods!    */
}
- (void)setFoo:(int)foo {
  sprite = foo;
  spree = foo;
}
- (void)setSprite:(int)sprite {
  int spree;
  sprite = 15;  // expected-warning {{local declaration of 'sprite' hides instance variable}}
  self->sprite = 16;
  spree = 17;  // expected-warning {{local declaration of 'spree' hides instance variable}}
  self->spree = 18;
}   
@end