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* ext/psych/lib/psych/visitors/visitor.rb (accept): switch to

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a dispatch cache rather than case / when statement.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29670 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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tenderlove 2010-11-02 21:24:54 +00:00
parent 8114da9e6b
commit ad9aa5368f
2 changed files with 16 additions and 10 deletions
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ChangeLog
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@ -1,3 +1,8 @@
Tue Nov 2 22:47:08 2010 Aaron Patterson <aaron@tenderlovemaking.com>
* ext/psych/lib/psych/visitors/visitor.rb (accept): switch to
a dispatch cache rather than case / when statement.
Tue Nov 2 21:46:52 2010 Kouhei Sutou <kou@cozmixng.org>
* NEWS: fix a typo.

21
ext/psych/lib/psych/visitors/visitor.rb
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@ -11,16 +11,17 @@ module Psych
end
def accept target
case target
when Psych::Nodes::Scalar then visit_Psych_Nodes_Scalar target
when Psych::Nodes::Mapping then visit_Psych_Nodes_Mapping target
when Psych::Nodes::Sequence then visit_Psych_Nodes_Sequence target
when Psych::Nodes::Alias then visit_Psych_Nodes_Alias target
when Psych::Nodes::Document then visit_Psych_Nodes_Document target
when Psych::Nodes::Stream then visit_Psych_Nodes_Stream target
else
raise "Can't handle #{target}"
end
visit target
end
private
DISPATCH = Hash.new do |hash, klass|
hash[klass] = "visit_#{klass.name.gsub('::', '_')}"
end
def visit target
send DISPATCH[target.class], target
end
end
end