gcc/testsuite/gdc.test/fail_compilation/test16589.d

   1 /*
   2 REQUIRED_ARGS: -preview=dip1000
   3 TEST_OUTPUT:
   4 ---
   5 fail_compilation/test16589.d(26): Error: returning `&this.data` escapes a reference to parameter `this`
   6 fail_compilation/test16589.d(24):        perhaps annotate the function with `return`
   7 fail_compilation/test16589.d(31): Error: returning `&this` escapes a reference to parameter `this`
   8 fail_compilation/test16589.d(29):        perhaps annotate the function with `return`
   9 fail_compilation/test16589.d(37): Error: returning `&s.data` escapes a reference to parameter `s`
  10 fail_compilation/test16589.d(35):        perhaps annotate the parameter with `return`
  11 fail_compilation/test16589.d(42): Error: returning `&s` escapes a reference to parameter `s`
  12 fail_compilation/test16589.d(40):        perhaps annotate the parameter with `return`
  13 fail_compilation/test16589.d(47): Error: returning `&s.data` escapes a reference to parameter `s`
  14 fail_compilation/test16589.d(52): Error: returning `& s` escapes a reference to parameter `s`
  15 ---
  16 */
  17
  18 // https://issues.dlang.org/show_bug.cgi?id=16589
  19
  20 struct S
  21 {
  22     int data;
  23
  24     @safe int* access1()
  25     {
  26         return &data;
  27     }
  28
  29     @safe S* access2()
  30     {
  31         return &this;
  32     }
  33 }
  34
  35 @safe int* access3(ref S s)
  36 {
  37     return &s.data;
  38 }
  39
  40 @safe S* access4(ref S s)
  41 {
  42     return &s;
  43 }
  44
  45 @safe int* access5(S s)
  46 {
  47     return &s.data;
  48 }
  49
  50 @safe S* access6(S s)
  51 {
  52     return &s;
  53 }
  54
  55 class C
  56 {
  57     int data;
  58
  59     @safe int* access7()
  60     {
  61         return &data;
  62     }
  63 }