Skip to content

Instantly share code, notes, and snippets.

@edmore

edmore/meta_set_get.rb

Created May 1, 2012 15:57
Show Gist options
  • Save edmore/2569096 to your computer and use it in GitHub Desktop.
Save edmore/2569096 to your computer and use it in GitHub Desktop.
Download ZIP
Meta programming Setters and Getters
Raw
meta_set_get.rb
class Object
def self.my_attr_accessor( *names )
names.each do |name|
define_method( "#{name}=" ) do |value|
instance_variable_set( "@#{name}", value )
end
define_method( name ) do
instance_variable_get( "@#{name}" )
end
end
end
end
class Developer
my_attr_accessor :level, :name, :surname
def initialize
yield ( self ) if block_given?
end
end
# Test our Setters
superduperdev = Developer.new do |d|
d.level = "journeyman"
d.name = "Edmore"
d.surname = "Moyo"
end
# Test our Getters
################################################
# 1.9.3p125 :031 > superduperdev.name
# => "Edmore"
# Edmore's IRB > superduperdev.surname
# => "Moyo"
# Edmore's IRB > superduperdev.level
# => "journeyman"
# Edmore's IRB > superduperdev.instance_variables
# => [:@level, :@name, :@surname]
################################################
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment