/usr/lib/ruby/vendor_ruby/moneta/optionmerger.rb is in ruby-moneta 0.7.20-2.2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | module Moneta
# @api private
class OptionMerger < Wrapper
METHODS = [:key?, :load, :store, :create, :delete, :increment, :clear].freeze
attr_reader :default_options
# @param [Moneta store] adapter underlying adapter
# @param [Hash] options
def initialize(adapter, options = {})
super(adapter, options)
@default_options = adapter.respond_to?(:default_options) ? adapter.default_options.dup : {}
if options.include?(:only)
raise ArgumentError, 'Either :only or :except is allowed' if options.include?(:except)
methods = [options.delete(:only)].compact.flatten
elsif options.include?(:except)
methods = METHODS - [options.delete(:except)].compact.flatten
else
methods = METHODS
end
methods.each do |method|
if oldopts = @default_options[method]
newopts = (@default_options[method] = oldopts.merge(options))
newopts[:prefix] = "#{oldopts[:prefix]}#{options[:prefix]}" if oldopts[:prefix] || options[:prefix]
else
@default_options[method] = options
end
end
end
protected
def wrap(method, *args)
options = args.last
options.merge!(@default_options[method]) if Hash === options && @default_options.include?(method)
yield
end
end
end
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