Error: this for ~this needs to be type foo not type foo[1u][1u]

[Steven Schveighoffer]

On Sun, 13 Feb 2011 09:33:40 -0500, d coder <dlang.coder at gmail.com> wrote:
> Greetings
>
> I am getting this error when I am instantiating a struct array with a
> single element inside another class and only if there is the
> destructor for the struct is explicitly defined. Is it a known error?
>
> Here is a minimized snippet that gives error:
>
> $ rdmd --main -unittest test.d
> Error: this for ~this needs to be type foo not type foo[1u][1u]
> Error: this for ~this needs to be type foo not type foo[1u]
>
>
> // test.d
>
> struct foo {
>   int foofoo;
>   ~this() {			// no error if explicit destructor not
> 				// defined
>   }
> }
>
> class bar {
>   foo fred;
>   foo[2][2] foofoo;
>   foo[1] frop;			// this gives error
>   foo[1][1] fropfrop;		// this too
> }
>
> unittest {
>   foo frop;
>   foo[1][1] fropfrop;		// this works
>   bar burp;
> }

I think it is a bug.  The compiler appears to be "optimizing" out the  
array, since you are creating a static array of exactly one element, it's  
the same as just creating an element.

But it somehow forgets that it optimized that out.

Please file on bugzilla.

-Steve