gcc/testsuite/gdc.test/compilable/aliasdecl.d

   1 template Test(T){ alias Type = T; }
   2
   3 alias X1 = int;
   4 static assert(is(X1 == int));
   5
   6 alias X2 = immutable(long)[], X3 = shared const double[int];
   7 static assert(is(X2 == immutable(long)[]));
   8 static assert(is(X3 == shared const double[int]));
   9
  10 alias X4 = void delegate() const, X5 = Test!int;
  11 static assert(is(X4 == void delegate() const));
  12 static assert(is(X5.Type == int));
  13
  14 alias FP5 = extern(C) pure nothrow @safe @nogc void function(),
  15       DG5 = extern(D) pure nothrow @safe @nogc void delegate();
  16 static assert(FP5.stringof == "extern (C) void function() pure nothrow " /* ~ "@safe " */ ~ "@nogc");
  17 static assert(DG5.stringof ==            "void delegate() pure nothrow " /* ~ "@safe " */ ~ "@nogc");
  18
  19 void main()
  20 {
  21     alias Y1 = int;
  22     static assert(is(Y1 == int));
  23
  24     alias Y2 = immutable(long)[], Y3 = shared const double[int];
  25     static assert(is(Y2 == immutable(long)[]));
  26     static assert(is(Y3 == shared const double[int]));
  27
  28     alias Y4 = void delegate() const, Y5 = Test!int;
  29     static assert(is(Y4 == void delegate() const));
  30     static assert(is(Y5.Type == int));
  31
  32     // https://issues.dlang.org/show_bug.cgi?id=18429
  33     struct S
  34     {
  35         alias a this;
  36         enum a = 1;
  37     }
  38
  39  /+ struct S
  40     {
  41         int value;
  42         alias this = value;
  43     }
  44     auto s = S(10);
  45     int n = s;
  46     assert(n == 10); +/
  47 }