http://d.puremagic.com/issues/show_bug.cgi?id=6838

           Summary: Covariant return types don't work with static arrays
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: pszturmaj@tlen.pl


--- Comment #0 from Piotr Szturmaj <pszturmaj@tlen.pl> 2011-10-22 09:07:48 PDT ---
This is an example from http://d-programming-language.org/function.html, but with changed return types:

class Foo {
  int[] test() { return null; }
}

class Bar : Foo {
  int[2] test() { return [1, 2]; } // overrides and is covariant with
Foo.test()
}

// and here's additional test code:

void main() {
  Foo f = new Bar();
  auto arr = f.test();
  assert(arr.length == 2);
}

This code compiles but fails on assert. Returned arr.length is 1 and accessing the first element of that array results in access violation.

Given that static arrays are implicitly convertible to dynamic arrays, it should work. If not, it at least should not compile.

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SomeDude <lovelydear@mailmetrash.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |lovelydear@mailmetrash.com


--- Comment #1 from SomeDude <lovelydear@mailmetrash.com> 2012-04-20 17:00:57 PDT ---
This no longer compiles on 2.059 Win32:

PS E:\DigitalMars\dmd2\samples> rdmd bug.d
bug.d(6): Error: function bug.Bar.test of type int[2u]() overrides but is not
covariant with bug.Foo.test of type int[]()
Failed: "dmd" "-v" "-o-" "bug.d" "-I."
PS E:\DigitalMars\dmd2\samples>

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--- Comment #2 from SomeDude <lovelydear@mailmetrash.com> 2012-05-01 15:28:26 PDT ---
Should be closed as FIXED.

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SomeDude <lovelydear@mailmetrash.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED


--- Comment #3 from SomeDude <lovelydear@mailmetrash.com> 2012-05-04 16:06:07 PDT ---
Code returns a sound compilation error.

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