gcc/testsuite/gdc.test/fail_compilation/diag13333.d

   1 /*
   2 TEST_OUTPUT:
   3 ---
   4 fail_compilation/diag13333.d(29): Error: template instance `VariantN!(maxSize!(S), T)` recursive template expansion
   5 fail_compilation/diag13333.d(29): Error: template instance `diag13333.maxSize!(S)` error instantiating
   6 fail_compilation/diag13333.d(34):        instantiated from here: `Algebraic!(S)`
   7 ---
   8 */
   9
  10 template maxSize(T...)
  11 {
  12     static if (T.length == 1)
  13     {
  14         enum size_t maxSize = T[0].sizeof;
  15     }
  16     else
  17     {
  18         enum size_t maxSize = T[0].sizeof >= maxSize!(T[1 .. $])
  19             ? T[0].sizeof : maxSize!(T[1 .. $]);
  20     }
  21 }
  22
  23 struct VariantN(size_t maxDataSize, AllowedTypesX...)
  24 {
  25 }
  26
  27 template Algebraic(T...)
  28 {
  29     alias Algebraic = VariantN!(maxSize!T, T);
  30 }
  31
  32 struct DummyScope
  33 {
  34     alias A = Algebraic!S;
  35
  36     static struct S     // <- class
  37     {
  38         A entity;
  39     }
  40 }