I edited my garbled sentences.
[15:28:22] <cognominal> I know that a match is both an array and a
hash and that both containers have a .keys method. But I would expect
.keys for a Match to return a list of the named reductions
[15:28:37] <cognominal> rakudo: grammar A { token TOP { <a> }; token
a { a } }; class A::A { method TOP($/) { say $<a>.keys }} ;
A.parse( 'a', :actions(A::A))
[15:28:42] <p6eval> rakudo 4bd478: OUTPUT«»
[15:29:09] <moritz_> the spec isn't clear on that point
[15:31:36] <cognominal> I think it can be useful on actions for a
rule that is a mere alternation list. method alternation($/) {
make $/."{($/.keys)[0]}".ast } # if I got that right
[15:32:00] <masak> fwiw, I'd also expect the subrule names from .keys
[15:32:31] <moritz_> cognominal: are you sure you don't want .caps for that?
[15:33:06] * masak .oO( .shower-caps )
[15:33:24] <moritz_> that said, I could very well live with
Match.keys returning (Match.list.keys, Match.hash.keys)
[15:33:41] <moritz_> and likewise .values and .kv
--
cognominal stef
