From: marcandre-ruby-core@... Date: 2020-07-30T12:29:24+00:00 Subject: [ruby-core:99399] [Ruby master Bug#17092] Array#flatten with finite depth should flatten recursive arrays Issue #17092 has been reported by marcandre (Marc-Andre Lafortune). ---------------------------------------- Bug #17092: Array#flatten with finite depth should flatten recursive arrays https://bugs.ruby-lang.org/issues/17092 * Author: marcandre (Marc-Andre Lafortune) * Status: Open * Priority: Normal * Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: REQUIRED ---------------------------------------- Recursive arrays can not be flattened currently: ```ruby a = []; a << a a.flatten(2) # => tried to flatten recursive array ``` The only valid reason to raise an error for recursive arrays is for flatten with no argument (or negative argument); the case for finite-depth flatten is not problematic. This fix has the bonus of speeding up the finite-depth case in general. I will merge https://github.com/ruby/ruby/pull/3374, @nobu asked for backports. -- https://bugs.ruby-lang.org/ Unsubscribe: