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Explain the reason for calling do_with_enum without a block [ci skip]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52592 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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knu 2015-11-16 07:41:18 +00:00
parent 4f018492d3
commit dcfcef1cfd
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lib/set.rb
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@ -151,7 +151,7 @@ class Set
@hash.replace(enum.instance_variable_get(:@hash))
self
else
do_with_enum(enum)
do_with_enum(enum) # make sure enum is enumerable before calling clear
clear
merge(enum)
end