Class: Class

Inherits:
Object
  • Object
show all
Defined in:
lib/support/cattr_accessor.rb

Overview

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

Instance Method Summary collapse

Instance Method Details

#cattr_accessor(*syms) ⇒ Object 



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# File 'lib/support/cattr_accessor.rb', line 53

def cattr_accessor(*syms)
  cattr_reader(*syms)
  cattr_writer(*syms)
end

#cattr_reader(*syms) ⇒ Object

:nodoc:



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# File 'lib/support/cattr_accessor.rb', line 4

def cattr_reader(*syms)
  syms.each do |sym|
    class_eval "      if ! defined? @@\#{sym.to_s}\n        @@\#{sym.to_s} = nil\n      end\n      \n      def self.\#{sym.to_s}\n        @@\#{sym}\n      end\n\n      def \#{sym.to_s}\n        @@\#{sym}\n      end\n\n      def call_\#{sym.to_s}\n        case @@\#{sym.to_s}\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"

#cattr_writer(*syms) ⇒ Object 



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# File 'lib/support/cattr_accessor.rb', line 31

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