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体验新版 GitCode,发现更多精彩内容 >>
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7a65dc6f
编写于
8月 28, 2016
作者:
K
Kasper Timm Hansen
提交者:
GitHub
8月 28, 2016
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Merge pull request #26306 from kamipo/remove_under_ruby-1.9
Remove "Under Ruby 1.9" [ci skip]
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cec60d39
73b8823a
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activerecord/lib/active_record/core.rb
activerecord/lib/active_record/core.rb
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activerecord/lib/active_record/core.rb
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7a65dc6f
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@@ -541,15 +541,15 @@ def slice(*methods)
private
# Under Ruby 1.9, Array#flatten will call #to_ary (recursively) on each of the elements
# of the array, and then rescues from the possible NoMethodError
. If those elements are
# ActiveRecord::Base's, then this triggers the various method_missing
's that we have,
# +Array#flatten+ will call +#to_ary+ (recursively) on each of the elements of
# the array, and then rescues from the possible +NoMethodError+
. If those elements are
# +ActiveRecord::Base+'s, then this triggers the various +method_missing+
's that we have,
# which significantly impacts upon performance.
#
# So we can avoid the method_missing hit by explicitly defining #to_ary as nil
here.
# So we can avoid the +method_missing+ hit by explicitly defining +#to_ary+ as +nil+
here.
#
# See also http://tenderlovemaking.com/2011/06/28/til-its-ok-to-return-nil-from-to_ary.html
def
to_ary
# :nodoc:
def
to_ary
nil
end
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