[Issue 8557] AA error with string[string][]

[d-bugmail at puremagic.com]

https://d.puremagic.com/issues/show_bug.cgi?id=8557



--- Comment #11 from bearophile_hugs at eml.cc 2013-11-25 01:22:48 PST ---
(In reply to comment #10)

> It's actually turned out worse than I thought.
> 
> I think we should change the rules a little.  These test cases should all
> compile, and the ones that don't currently work are commented out.
> 
> - If the type is given try and match it
> - Else if each element has a key, default is AA
>   otherwise is array
> - Vectors and pointers are treated the same as dynamic arrays
> - For static array inits with keys, the length is given by the static array
> - For dynamic array inits with keys, the length is given by the largest key
> 
> void main()
> {
>     { // normal array literal
>         int[] a = [1, 2, 3];
>         int[3] b = [1, 2, 3];
>         static assert(!is(typeof({ int[int] c = [1, 2, 3]; }))); // need key
> for each element
>         auto d = [1, 2, 3];
>         static assert(is(typeof(d) == int[])); // default is dynamic array
>     }
>     { // some keys, no gaps
>         int[] a = [1 : 2, 3, 0 : 1];
>         int[3] b = [1 : 2, 3, 0 : 1];
>         static assert(!is(typeof({ int[int] c = [1 : 2, 3, 0 : 1]; }))); //
> need key for each element
>         // auto d = [1 : 2, 3, 0 : 1];
>         // static assert(is(typeof(d) == int[])); // default to array when not
> enough keys

Perhaps related, a report from 2010-08-21:
https://d.puremagic.com/issues/show_bug.cgi?id=4703

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