> On Feb 3, 2017, at 2:34 PM, [email protected] wrote:
>
> I like the suggested syntax. The only drawback I see is that it inhibits the
> future addition of union types for closures:
>
> |int | float $x| => $x
>
> Adding parentheses of course resolves the issue but looks a bit awkward:
>
> |(int | float) $x| => $x
>
> Apart from that I have nothing to complain about. I'd be happy either way.
>
While it may be ugly, I do not believe that this has any ambiguity.
$callback = |int|float $x| => $x ** 2;
When the second | is not followed by =>, the parser should be able to discern
that a union type is being used.
Regards, Aaron Piotrowski
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