http://d.puremagic.com/issues/show_bug.cgi?id=11292

           Summary: Cannot re-initialize a const field in postblit
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody@puremagic.com
        ReportedBy: samukha@voliacable.com


--- Comment #0 from Max Samukha <samukha@voliacable.com> 2013-10-18 05:54:29 PDT ---
struct S
{
    immutable int x;

    this(int x)
    {
        this.x = x;
    }

    this(this) {
        x = 1;
    }
}

void main() {
    S s = S(1);
    S s2 = s;
}

Error: can only initialize const member x inside constructor

Postblit is a constructor. Why re-initialization is allowed for the state copied from .init and not for the state copied from the source struct?

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http://d.puremagic.com/issues/show_bug.cgi?id=11292


Kenji Hara <k.hara.pg@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid


--- Comment #1 from Kenji Hara <k.hara.pg@gmail.com> 2013-10-21 21:11:33 PDT ---
(In reply to comment #0)
> struct S
> {
>     immutable int x;
> 
>     this(int x)
>     {
>         this.x = x;
>     }
> 
>     this(this) {
>         x = 1;
>     }
> }
> 
> void main() {
>     S s = S(1);
>     S s2 = s;
> }
> 
> Error: can only initialize const member x inside constructor
> 
> Postblit is a constructor. Why re-initialization is allowed for the state copied from .init and not for the state copied from the source struct?

This is definitely a compiler bug.

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