Class: Module

Inherits:
Object show all
Defined in:
lib/action_controller/support/module_attribute_accessors.rb

Overview

Extends the module object with module and instance accessors for class attributes, just like the native attr* accessors for instance attributes.

Instance Method Summary collapse

Instance Method Details

#mattr_accessor(*syms) ⇒ Object 



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# File 'lib/action_controller/support/module_attribute_accessors.rb', line 53

def mattr_accessor(*syms)
  mattr_reader(*syms)
  mattr_writer(*syms)
end

#mattr_reader(*syms) ⇒ Object

:nodoc:



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# File 'lib/action_controller/support/module_attribute_accessors.rb', line 4

def mattr_reader(*syms)
  syms.each do |sym|
    class_eval "      if ! defined? @@\#{sym.id2name}\n        @@\#{sym.id2name} = nil\n      end\n      \n      def self.\#{sym.id2name}\n        @@\#{sym}\n      end\n\n      def \#{sym.id2name}\n        @@\#{sym}\n      end\n\n      def call_\#{sym.id2name}\n        case @@\#{sym.id2name}\n          when Symbol then send(@@\#{sym})\n          when Proc   then @@\#{sym}.call(self)\n          when String then @@\#{sym}\n          else nil\n        end\n      end\n    EOS\n  end\nend\n"

#mattr_writer(*syms) ⇒ Object 



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# File 'lib/action_controller/support/module_attribute_accessors.rb', line 31

def mattr_writer(*syms)
  syms.each do |sym|
    class_eval "      if ! defined? @@\#{sym.id2name}\n        @@\#{sym.id2name} = nil\n      end\n      \n      def self.\#{sym.id2name}=(obj)\n        @@\#{sym.id2name} = obj\n      end\n\n      def self.set_\#{sym.id2name}(obj)\n        @@\#{sym.id2name} = obj\n      end\n\n      def \#{sym.id2name}=(obj)\n        @@\#{sym} = obj\n      end\n    EOS\n  end\nend\n"