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# File 'activesupport/lib/active_support/memoizable.rb', line 66
def memoize(*symbols)
symbols.each do |symbol|
original_method = :"_unmemoized_#{symbol}"
memoized_ivar = ActiveSupport::Memoizable.memoized_ivar_for(symbol)
class_eval <<-EOS, __FILE__, __LINE__ + 1
include InstanceMethods # include InstanceMethods
#
if method_defined?(:#{original_method}) # if method_defined?(:_unmemoized_mime_type)
raise "Already memoized #{symbol}" # raise "Already memoized mime_type"
end # end
alias #{original_method} #{symbol} # alias _unmemoized_mime_type mime_type
#
if instance_method(:#{symbol}).arity == 0 # if instance_method(:mime_type).arity == 0
def #{symbol}(reload = false) # def mime_type(reload = false)
if reload || !defined?(#{memoized_ivar}) || #{memoized_ivar}.empty? # if reload || !defined?(@_memoized_mime_type) || @_memoized_mime_type.empty?
#{memoized_ivar} = [#{original_method}] # @_memoized_mime_type = [_unmemoized_mime_type]
end # end
#{memoized_ivar}[0] # @_memoized_mime_type[0]
end # end
else # else
def #{symbol}(*args) # def mime_type(*args)
#{memoized_ivar} ||= {} unless frozen? # @_memoized_mime_type ||= {} unless frozen?
args_length = method(:#{original_method}).arity # args_length = method(:_unmemoized_mime_type).arity
if args.length == args_length + 1 && # if args.length == args_length + 1 &&
(args.last == true || args.last == :reload) # (args.last == true || args.last == :reload)
reload = args.pop # reload = args.pop
end # end
#
if defined?(#{memoized_ivar}) && #{memoized_ivar} # if defined?(@_memoized_mime_type) && @_memoized_mime_type
if !reload && #{memoized_ivar}.has_key?(args) # if !reload && @_memoized_mime_type.has_key?(args)
#{memoized_ivar}[args] # @_memoized_mime_type[args]
elsif #{memoized_ivar} # elsif @_memoized_mime_type
#{memoized_ivar}[args] = #{original_method}(*args) # @_memoized_mime_type[args] = _unmemoized_mime_type(*args)
end # end
else # else
#{original_method}(*args) # _unmemoized_mime_type(*args)
end # end
end # end
end # end
#
if private_method_defined?(#{original_method.inspect}) # if private_method_defined?(:_unmemoized_mime_type)
private #{symbol.inspect} # private :mime_type
elsif protected_method_defined?(#{original_method.inspect}) # elsif protected_method_defined?(:_unmemoized_mime_type)
protected #{symbol.inspect} # protected :mime_type
end # end
EOS
end
end
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