gcc/testsuite/gdc.test/fail_compilation/test20809.d

   1 /*
   2 REQUIRED_ARGS:
   3 TEST_OUTPUT:
   4 ---
   5 fail_compilation/test20809.d(114): Error: returning `this.a` escapes a reference to parameter `this`
   6 fail_compilation/test20809.d(112):        perhaps annotate the function with `return`
   7 ---
   8  */
   9
  10 // https://issues.dlang.org/show_bug.cgi?id=20809
  11
  12 #line 100
  13
  14 @safe:
  15
  16 struct S
  17 {
  18     @safe:
  19     int a;
  20     ~this()
  21     {
  22         a = 0;
  23     }
  24
  25     ref int val()
  26     {
  27         return a;
  28     }
  29 }
  30
  31 S bar()
  32 {
  33     return S(2);
  34 }
  35
  36 int foo()
  37 {
  38     return bar.val;
  39 }
  40
  41 void test()
  42 {
  43     assert(foo() == 2);
  44 }