diff options
Diffstat (limited to 'activesupport/lib/active_support/memoizable.rb')
-rw-r--r-- | activesupport/lib/active_support/memoizable.rb | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/activesupport/lib/active_support/memoizable.rb b/activesupport/lib/active_support/memoizable.rb deleted file mode 100644 index 4c67676ad5..0000000000 --- a/activesupport/lib/active_support/memoizable.rb +++ /dev/null @@ -1,116 +0,0 @@ -require 'active_support/core_ext/kernel/singleton_class' -require 'active_support/core_ext/module/aliasing' -require 'active_support/deprecation' - -module ActiveSupport - module Memoizable - def self.extended(base) - ActiveSupport::Deprecation.warn "ActiveSupport::Memoizable is deprecated and will be removed in future releases," \ - "simply use Ruby memoization pattern instead.", caller - super - end - - def self.memoized_ivar_for(symbol) - "@_memoized_#{symbol.to_s.sub(/\?\Z/, '_query').sub(/!\Z/, '_bang')}".to_sym - end - - module InstanceMethods - def self.included(base) - base.class_eval do - unless base.method_defined?(:freeze_without_memoizable) - alias_method_chain :freeze, :memoizable - end - end - end - - def freeze_with_memoizable - memoize_all unless frozen? - freeze_without_memoizable - end - - def memoize_all - prime_cache ".*" - end - - def unmemoize_all - flush_cache ".*" - end - - def prime_cache(*syms) - syms.each do |sym| - methods.each do |m| - if m.to_s =~ /^_unmemoized_(#{sym})/ - if method(m).arity == 0 - __send__($1) - else - ivar = ActiveSupport::Memoizable.memoized_ivar_for($1) - instance_variable_set(ivar, {}) - end - end - end - end - end - - def flush_cache(*syms) - syms.each do |sym| - (methods + private_methods + protected_methods).each do |m| - if m.to_s =~ /^_unmemoized_(#{sym.to_s.gsub(/\?\Z/, '\?')})/ - ivar = ActiveSupport::Memoizable.memoized_ivar_for($1) - instance_variable_get(ivar).clear if instance_variable_defined?(ivar) - end - end - end - end - end - - 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 - end -end |