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rails--rails/activesupport/lib/active_support/ordered_options.rb

43 lines
894 B
Ruby

require 'active_support/ordered_hash'
# Usually key value pairs are handled something like this:
#
# h = ActiveSupport::OrderedOptions.new
# h[:boy] = 'John'
# h[:girl] = 'Mary'
# h[:boy] # => 'John'
# h[:girl] # => 'Mary'
#
# Using <tt>OrderedOptions</tt> above code could be reduced to:
#
# h = ActiveSupport::OrderedOptions.new
# h.boy = 'John'
# h.girl = 'Mary'
# h.boy # => 'John'
# h.girl # => 'Mary'
#
module ActiveSupport #:nodoc:
class OrderedOptions < OrderedHash
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
class InheritableOptions < OrderedOptions
def initialize(parent)
super() { |h,k| parent[k] }
end
end
end