test/sel.m

   1 #include "test.h"
   2 #include <string.h>
   3 #include <objc/objc-runtime.h>
   4 #include <objc/objc-auto.h>
   5
   6 int main()
   7 {
   8     // Make sure @selector values are correctly fixed up
   9     testassert(@selector(foo) == sel_registerName("foo"));
  10
  11     // sel_getName recognizes the zero SEL
  12     testassert(0 == strcmp("<null selector>", sel_getName(0)));
  13
  14     // sel_getName recognizes GC-ignored SELs
  15     if (objc_collecting_enabled()) {
  16         testassert(0 == strcmp("<ignored selector>",
  17                                sel_getName(@selector(retain))));
  18     } else {
  19         testassert(0 == strcmp("retain",
  20                                sel_getName(@selector(retain))));
  21     }
  22
  23     // _objc_search_builtins() shouldn't crash on GC-ignored SELs
  24     union {
  25         SEL sel;
  26         const char *ptr;
  27     } u;
  28     u.sel = @selector(retain);
  29     testassert(@selector(retain) == sel_registerName(u.ptr));
  30
  31     succeed(__FILE__);
  32 }