No-Brace Short Closure not working

[HallofFamer]

It seems that short closure without braces aint working for me. This code cannot be compiled into the correct syntax in PHP:

$result = array_map($x ~> $x * 2 * ++$y, range(1, 10));

Instead it has parse error: 'syntax error, unexpected '~', expecting ',' or ')''. Apparently the issue is with expression() identifier which doesnt seem to work, its a bug with Yay library. I wonder if you have a workaround for this issue, or we may have to wait a response from marcioAlmada to fix Yay. Or if you dont have the same problem as I do, lemme know too.

[HallofFamer]

By performing the following tests I was able to find out what the issue is:

$filtered = array_filter($amplified, $fruit ~> in_array($fruit, $exclude)); // it works
$filtered = array_filter($amplified, $fruit ~> !in_array($fruit, $exclude)); // it does not work

$result = array_map($x ~> pow($x, 2), range(1, 10)); // it works
$result = array_map($x ~> $x * 2 * ++$y, range(1, 10)); // it does not work

Seems that the yay parser will fail if you apply operators(arithmetic, logic, or whatever) in a simple expression. I dont think this can be resolved without a bug fix from Yay, so at this moment a lesser workaround is to allow wrapping complex expressions with parenthesis(). Here is what I did:

buffer("~>"),
expression() as body,
_() as scope

Changes the middle line like this:

buffer("~>"),
either(expression(), chain(buffer("("), layer() ,buffer(")"))) as body,
_() as scope

With this change, the below expression will work properly:

$filtered = array_filter($amplified, $fruit ~> (!in_array($fruit, $exclude))); // it works now

With all being said, the workaround is not pretty, I hope this issue will be resolved completely following an update from Yay.

[assertchris]

Sorry I didn't see this sooner. It's a curious bug...