Singletons, alias this and DMD crashing

[Jacob Carlborg]

On 2013-05-09 15:07, Leandro Motta Barros wrote:
> Thanks for the comment! I noticed this wouldn't compile, though I
> haven't really wondered why so. My email was more about the compiler
> bug than about using alias this with singletons.
>
> Anyway, while trying to circumvent the compiler bug, I did this:
>
> import std.stdio;
>
> class SImpl
> {
>     void foo()
>     {
>        writeln("foo!");
>     }
>
>     private this() { }
> }
>
> class S
> {
>     static @property SImpl instance()
>     {
>        if (_i is null)
>           _i = new SImpl();
>
>        return _i;
>     }
>
>     static SImpl _i;
>
>     alias instance this;
> }
>
> void main()
> {
>     S.foo();
> }
>
> This works and compiles with DMD 2.062. (I don't like to have
> to write this additional code manually, but I'll try to make something
> about it :-) )

Aha, you added an additional class.

-- 
/Jacob Carlborg