gcc/testsuite/gdc.test/fail_compilation/dip25.d

   1 /*
   2 REQUIRED_ARGS:
   3 TEST_OUTPUT:
   4 ---
   5 fail_compilation/dip25.d(17): Error: returning `this.buffer[]` escapes a reference to parameter `this`
   6 fail_compilation/dip25.d(15):        perhaps annotate the function with `return`
   7 fail_compilation/dip25.d(22): Error: returning `identity(x)` escapes a reference to parameter `x`
   8 fail_compilation/dip25.d(23): Error: returning `identity(x)` escapes a reference to parameter `x`
   9 fail_compilation/dip25.d(23):        perhaps annotate the parameter with `return`
  10 ---
  11 */
  12 struct Data
  13 {
  14     char[256] buffer;
  15     @property const(char)[] filename() const pure nothrow @safe
  16     {
  17         return buffer[];
  18     }
  19 }
  20
  21 ref int identity(return ref int x) @safe { return x; }
  22 ref int fun(return int x) @safe { return identity(x); }
  23 ref int fun2(ref int x) @safe { return identity(x); }
  24
  25 void main()
  26 {
  27     Data d;
  28     const f = d.filename;
  29 }