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Avoid unnecessary hash allocation for keyword splat #97

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Avoid unnecessary hash allocation for keyword splat 
Found by the performance warning in Ruby feature 21274.
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@jeremyevans
jeremyevans committed Apr 20, 2025
commit 1c5f7aace77bb60e5939805f3eaca0aabf59e965
3 changes: 2 additions & 1 deletion lib/optparse.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -1846,7 +1846,8 @@ def permute(*argv, **keywords)
#
def permute!(argv = default_argv, **keywords)
nonopts = []
order!(argv, **keywords, &nonopts.method(:<<))
method = nonopts.method(:<<)
order!(argv, **keywords, &method)
argv[0, 0] = nonopts
argv
end
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