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tag: v2.0.3
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# OrderedHash is namespaced to prevent conflicts with other implementations
module ActiveSupport
# Hash is ordered in Ruby 1.9!
if RUBY_VERSION >= '1.9'
OrderedHash = ::Hash
else
class OrderedHash < Array #:nodoc:
def []=(key, value)
if pair = assoc(key)
pair.pop
pair << value
else
self << [key, value]
end
end
def [](key)
pair = assoc(key)
pair ? pair.last : nil
end
def keys
collect { |key, value| key }
end
def values
collect { |key, value| value }
end
def to_hash
returning({}) do |hash|
each { |array| hash[array[0]] = array[1] }
end
end
end
end
end
class OrderedOptions < ActiveSupport::OrderedHash #:nodoc:
def []=(key, value)
super(key.to_sym, value)
end
def [](key)
super(key.to_sym)
end
def method_missing(name, *args)
if name.to_s =~ /(.*)=$/
self[$1.to_sym] = args.first
else
self[name]
end
end
end
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