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ruby--ruby/lib/yaml.rb
tenderlove eb71e5cd67 * lib/yaml: Moved to ext/syck/lib, Syck only uses Syck constant.
* lib/yaml.rb: Added an engine manager for choosing YAML engine.
* ext/syck/lib/syck/rubytypes.rb: squashed warnings when using Psych

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@27212 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-04-03 21:50:47 +00:00

40 lines
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Ruby

module YAML
class EngineManager # :nodoc:
attr_reader :yamler
def initialize
@yamler = nil
end
def syck?
'syck' == @yamler
end
def yamler= engine
raise(ArgumentError, "bad engine") unless %w{syck psych}.include?(engine)
@yamler = engine
require engine
Object.class_eval <<-eorb, __FILE__, __LINE__ + 1
remove_const 'YAML'
YAML = #{engine.capitalize}
remove_method :to_yaml
alias :to_yaml :#{engine}_to_yaml
eorb
engine
end
end
ENGINE = YAML::EngineManager.new
end
module Syck
ENGINE = YAML::ENGINE
end
module Psych
ENGINE = YAML::ENGINE
end
YAML::ENGINE.yamler = 'syck'