Sha256: 6a2bf5c830d75db16dd948c7826d83f602f1c777a30f29e677c4cf26b1c463f4
Contents?: true
Size: 1.32 KB
Versions: 1
Compression:
Stored size: 1.32 KB
Contents
require 'dry/core/constants' module Dry module Core # Internal support module for class-level settings # # @api public module ClassAttributes include Constants # Specify what attirubtes a class will use # # @example # class MyClass # extend Dry::Core::ClassAttributes # # defines :one, :two # # one 1 # two 2 # end # # class OtherClass < MyClass # two 'two' # end # # MyClass.one # => 1 # MyClass.two # => 2 # # OtherClass.one # => 1 # OtherClass.two # => 'two' def defines(*args) mod = Module.new do args.each do |name| define_method(name) do |value = Undefined| ivar = "@#{name}" if value == Undefined if instance_variable_defined?(ivar) instance_variable_get(ivar) else nil end else instance_variable_set(ivar, value) end end end define_method(:inherited) do |klass| args.each { |name| klass.public_send(name, send(name)) } super(klass) end end extend(mod) end end end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
---|---|
dry-core-0.3.0 | lib/dry/core/class_attributes.rb |