[Issue 2006] Appending empty array using ~= doesn't work
d-bugmail at puremagic.com
d-bugmail at puremagic.com
Fri Jan 28 06:41:30 PST 2011
http://d.puremagic.com/issues/show_bug.cgi?id=2006
Denis Derman <denis.spir at gmail.com> changed:
What |Removed |Added
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CC| |denis.spir at gmail.com
--- Comment #5 from Denis Derman <denis.spir at gmail.com> 2011-01-28 06:39:21 PST ---
(In reply to comment #3)
> I just got bitten by this again.
>
> float[][] arr;
> arr ~= [1.0]; // ok, adds a new element (an array of length 1).
> arr ~= []; // not ok, does nothing. :-(
>
> The last line there does nothing, apparently because the compiler interprets it
> to be an array of array that's empty, which is the least useful interpretation.
> So I find it unexpected that the compiler interprets it this way. Once
> again... even though I already ran into it once. I just forgot because it
> seems so silly for the compiler to choose the interpretation that it does.
>
> At the very least I'd like the compiler to generate an error saying it doesn't
> know how to interpret 'arr ~= []'.
Yes, ambiguity that is bug-prone, because both interpretations can run, must
yield compiler error.
Denis
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