[ruby-core:122501] [Ruby Bug#21402] ruby2_keywords affects methods/procs with post arguments

Issue #21402 has been reported by jeremyevans0 (Jeremy Evans). ---------------------------------------- Bug #21402: ruby2_keywords affects methods/procs with post arguments https://bugs.ruby-lang.org/issues/21402 * Author: jeremyevans0 (Jeremy Evans) * Status: Open * Backport: 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED ---------------------------------------- I believe this is an oversight. We forgot to consider post arguments during the development of `ruby2_keywords`. I believe we should not allow `ruby2_keywords` on methods/procs with post arguments. Example: ```ruby def a(*c, **kw) [c, kw] end def b(*a, b) a(*a, b) end ruby2_keywords(:b) b({foo: 1}, bar: 1) # Currently: [[{foo: 1}], {bar: 1}] # Expected: [[{foo: 1}, {bar: 1}], {}] ``` I think the current behavior is unexpected and undesired, because instead of flagging the last element in the splat array, it flags a post argument. I've submitted a pull request to fix this: https://github.com/ruby/ruby/pull/13475 -- https://bugs.ruby-lang.org/
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jeremyevans0 (Jeremy Evans)