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cognominal/test.p6

Created August 11, 2015 00:10
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should the .a action method should be called knowing the match is in an assertion that does not contribute to the TOP match
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test.p6
grammar A {
token TOP { a <?before <a> > }
token a { a }
}
class A-actions {
method TOP($/) { say('yea') }
method a($/) { say('oops') }
}
A.parse('aa', :actions(A-actions));
@smls

smls commented Aug 11, 2015

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Sure, why wouldn't it?

@raiph

raiph commented Aug 11, 2015

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SO5 says "Action methods are invoked as soon as the corresponding rule has a successful match, regardless of if the match occurs in a zero-width match". It sounds to me like that covers the case you mention.

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