[fix] MatchData#deconstruct_keys: include non-participating captures - #9335
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headius merged 1 commit intoMar 28, 2026
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[fix] MatchData#deconstruct_keys: include non-participating captures#9335headius merged 1 commit into
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JRuby skipped named capture groups that did not participate in the match (value is nil). With nil argument, such keys were omitted entirely. With explicit keys, iteration stopped at the first non-participating capture. CRuby includes non-participating captures with nil values in all cases. This is important for pattern matching where the absence of a key means "does not match" while nil means "matched nothing".
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Consider moving specs to ruby/spec.
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JRuby skipped named capture groups that did not participate in the match (value is nil).
With nil argument, such keys were omitted entirely. With explicit keys, iteration stopped at the first non-participating capture.
CRuby includes non-participating captures with nil values in all cases. This is important for pattern matching where the absence of a key means "does not match" while nil means "matched nothing".