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;
}

On Sun, 13 Feb 2011 09:33:40 -0500, d coder <dlang.coder@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