Class: Class

Inherits:
Object
  • Object
show all
Defined in:
lib/shadow_puppet/core_ext.rb

Constant Summary collapse

EMPTY_INHERITABLE_ATTRIBUTES =

Prevent this constant from being created multiple times

{}.freeze

Instance Method Summary collapse

Instance Method Details

#class_inheritable_accessor(*syms) ⇒ Object 



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# File 'lib/shadow_puppet/core_ext.rb', line 57

def class_inheritable_accessor(*syms)
  class_inheritable_reader(*syms)
  class_inheritable_writer(*syms)
end

#class_inheritable_reader(*syms) ⇒ Object 



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# File 'lib/shadow_puppet/core_ext.rb', line 25

def class_inheritable_reader(*syms)
  syms.each do |sym|
    next if sym.is_a?(Hash)
    class_eval "      def self.\#{sym}                        # def self.before_add_for_comments\n        read_inheritable_attribute(:\#{sym})  #   read_inheritable_attribute(:before_add_for_comments)\n      end                                    # end\n                                             #\n      def \#{sym}                             # def before_add_for_comments\n        self.class.\#{sym}                    #   self.class.before_add_for_comments\n      end                                    # end\n    EOS\n  end\nend\n"

#class_inheritable_writer(*syms) ⇒ Object 



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# File 'lib/shadow_puppet/core_ext.rb', line 40

def class_inheritable_writer(*syms)
  options = syms.extract_options!
  syms.each do |sym|
    class_eval "      def self.\#{sym}=(obj)                          # def self.color=(obj)\n        write_inheritable_attribute(:\#{sym}, obj)    #   write_inheritable_attribute(:color, obj)\n      end                                            # end\n                                                     #\n      \#{\"                                            #\n      def \#{sym}=(obj)                               # def color=(obj)\n        self.class.\#{sym} = obj                      #   self.class.color = obj\n      end                                            # end\n      \" unless options[:instance_writer] == false }  # # the writer above is generated unless options[:instance_writer] == false\n    EOS\n  end\nend\n"

#inheritable_attributes ⇒ Object 



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# File 'lib/shadow_puppet/core_ext.rb', line 62

def inheritable_attributes
  @inheritable_attributes ||= EMPTY_INHERITABLE_ATTRIBUTES
end

#read_inheritable_attribute(key) ⇒ Object 



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# File 'lib/shadow_puppet/core_ext.rb', line 73

def read_inheritable_attribute(key)
  inheritable_attributes[key]
end

#reset_inheritable_attributes ⇒ Object 



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# File 'lib/shadow_puppet/core_ext.rb', line 77

def reset_inheritable_attributes
  @inheritable_attributes = EMPTY_INHERITABLE_ATTRIBUTES
end

#write_inheritable_attribute(key, value) ⇒ Object 



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# File 'lib/shadow_puppet/core_ext.rb', line 66

def write_inheritable_attribute(key, value)
  if inheritable_attributes.equal?(EMPTY_INHERITABLE_ATTRIBUTES)
    @inheritable_attributes = {}
  end
  inheritable_attributes[key] = value
end