gcc/testsuite/gdc.test/fail_compilation/fail118.d

   1 /*
   2 TEST_OUTPUT:
   3 ---
   4 fail_compilation/fail118.d(45): Error: invalid `foreach` aggregate `Iter` of type `Iter`
   5 fail_compilation/fail118.d(45):        `foreach` works with input ranges (implementing `front` and `popFront`), aggregates implementing `opApply`, or the result of an aggregate's `.tupleof` property
   6 fail_compilation/fail118.d(45):        https://dlang.org/phobos/std_range_primitives.html#isInputRange
   7 fail_compilation/fail118.d(46): Error: invalid `foreach` aggregate `Iter` of type `Iter`
   8 fail_compilation/fail118.d(46):        `foreach` works with input ranges (implementing `front` and `popFront`), aggregates implementing `opApply`, or the result of an aggregate's `.tupleof` property
   9 fail_compilation/fail118.d(46):        https://dlang.org/phobos/std_range_primitives.html#isInputRange
  10 fail_compilation/fail118.d(49): Error: invalid `foreach` aggregate `s` of type `S*`
  11 fail_compilation/fail118.d(51): Error: undefined identifier `unknown`
  12 fail_compilation/fail118.d(39): Error: undefined identifier `doesNotExist`
  13 fail_compilation/fail118.d(53): Error: template instance `fail118.error!()` error instantiating
  14 fail_compilation/fail118.d(53): Error: invalid `foreach` aggregate `error()` of type `void`
  15 ---
  16 */
  17
  18 // https://issues.dlang.org/show_bug.cgi?id=441
  19 // Crash on foreach of mixed-in aggregate.
  20 template opHackedApply()
  21 {
  22     struct Iter
  23     {
  24     }
  25 }
  26
  27 class Foo
  28 {
  29     mixin opHackedApply!() oldIterMix;
  30 }
  31
  32 struct S
  33 {
  34     int opApply(scope int delegate(const int) dg);
  35 }
  36
  37 auto error()()
  38 {
  39     doesNotExist();
  40 }
  41
  42 void main()
  43 {
  44     Foo f = new Foo;
  45     foreach (int i; f.oldIterMix.Iter) {}
  46     foreach (    i; f.oldIterMix.Iter) {}
  47
  48     S* s;
  49     foreach (const i; s) {}
  50
  51     foreach(const i; unknown) {}
  52
  53     foreach (const i; error()) {}
  54 }