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<?xml version="1.0"?>

<!--

Code such as this:

while ( ( $foo = $foo->nextSibling ) && someCondition( $foo ) ) { … }

is often convenient when working on DOM tree structures, which we do a lot of in this extension.

It's particularly helpful in combination with Phan, which can infer that `$foo` is non-null from

the code above, but it can't infer that `$foo->nextSibling` is non-null in code like this:

while ( $foo->nextSibling && someCondition( $foo->nextSibling ) ) { … }

When the variable is the only condition, we add extra parentheses to indicate that it isn't a

typo for `==`, which is a convention borrowed from C:

while ( ( $foo = $foo->nextSibling ) ) { … }

-->

</rule>

</ruleset>