gcc/testsuite/obj-c++.dg/property/dotsyntax-21.mm

   1 /* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, November 2010.  */
   2 /* { dg-do run } */
   3 /* { dg-xfail-run-if "Needs OBJC2 ABI" { *-*-darwin* && { lp64 && { ! objc2 } } } { "-fnext-runtime" } { "" } } */
   4
   5 /* Test dot-syntax with super in a category.  */
   6
   7 #include <stdlib.h>
   8 #include <objc/objc.h>
   9 #include <objc/runtime.h>
  10
  11 @interface MyRootClass
  12 {
  13   Class isa;
  14   int a;
  15 }
  16 + (id) initialize;
  17 + (id) alloc;
  18 - (id) init;
  19 - (int) count;
  20 - (void) setCount: (int)count;
  21 @end
  22
  23 @implementation MyRootClass
  24 + (id) initialize { return self; }
  25 + (id) alloc { return class_createInstance (self, 0); }
  26 - (id) init { return self; }
  27 - (int) count
  28 {
  29   return a;
  30 }
  31 - (void) setCount: (int)count
  32 {
  33   a = count;
  34 }
  35 @end
  36
  37 /* First, test 'super' in the main implementation of a subclass.  */
  38 @interface MySubClass : MyRootClass
  39 - (int) superCount;
  40 - (void) setSuperCount: (int)count;
  41 @end
  42
  43 @implementation MySubClass
  44 - (int) superCount
  45 {
  46   return super.count;
  47 }
  48 - (void) setSuperCount: (int)count
  49 {
  50   super.count = count;
  51 }
  52 @end
  53
  54 /* Now, test 'super' in a category of a subclass.  */
  55 @interface MySubClass (Category)
  56 - (int) superCount2;
  57 - (void) setSuperCount2: (int)count;
  58 - (int) test: (int)x;
  59 @end
  60
  61 @implementation MySubClass (Category)
  62 - (int) superCount2
  63 {
  64   return super.count;
  65 }
  66 - (void) setSuperCount2: (int)count
  67 {
  68   super.count = count;
  69 }
  70 - (int) test: (int)x
  71 {
  72   /* For positive x, the following will leave super.count
  73      unchanged.  */
  74   super.count++;
  75   --super.count;
  76
  77   super.count = (x < 0 ? x : super.count);
  78
  79   if ((x = super.count))
  80     super.count += 1;
  81
  82   if ((x = super.count))
  83     super.count -= 1;
  84
  85   /* Finally, also put a bit of self.count in the mix.  */
  86   self.count++;
  87   super.count--;
  88
  89   return super.count;
  90 }
  91 @end
  92
  93 int main (void)
  94 {
  95   MySubClass *object = [[MySubClass alloc] init];
  96
  97   object.count = 10;
  98   if (object.count != 10)
  99     abort ();
 100
 101   object.superCount = 11;
 102   if (object.superCount != 11)
 103     abort ();
 104
 105   object.superCount2 = 12;
 106   if (object.superCount2 != 12)
 107     abort ();
 108
 109   if ([object test: 45] != 12)
 110     abort ();
 111
 112   return 0;
 113 }