WordPress.Arrays.ArrayDeclaration does not terminate

[Akigiri]

The sniff WordPress.Arrays.ArrayDeclaration does not terminate for the following code:

$a = array(
    'key' =>
);

Tested with wpcs 0.9:
phpcs --standard=Wordpress-Core --sniffs=WordPress.Arrays.ArrayDeclaration <file>

I do not get any error message and the phpcs thread starts to use 100% of a cpu core. In conjunction with SublimeLinter it also causes to allocate a lot of memory (probably Sublime Text's fault) which slows down the whole system even more. It only seems to occur when you have an array with closing parentheses and you start to add new items. Once you write the T_DOUBLE_ARROW without a trailing value the sniff causes problems. If I remove the lines 276-316 the sniff terminates again without any errors but I am not sure about exact cause.

[jrfnl]

Which version of PHPCS are you using ? Sounds like this might be an upstream issue.

[Akigiri]

I use PHP_CodeSniffer version 2.5.1 (stable)

[westonruter]

The code has a syntax error:

Parse error: syntax error, unexpected ')'

This is outside the scope of PHP_CodeSniffer. See #522.

[Akigiri]

That makes sense. Thanks for your response.