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# frozen_string_literal: true
require 'eac_ruby_utils/patches/class/self_included_modules'
require 'eac_ruby_utils/patches/module/common_concern'
module EacRubyUtils
# Support to abstract methods.
#
# Usage:
#
# require 'eac_ruby_utils/abstract_methods'
#
# class BaseClass
# include EacRubyUtils::AbstractMethods
#
# abstract_methods :mymethod
# end
#
# BaseClass.new.mymethod # raise "Abstract method: mymethod"
#
# class SubClass
# def mymethod
# "Implemented"
# end
# end
#
# SubClass.new.mymethod # return "Implemented"
module AbstractMethods
common_concern
class << self
def abstract?(a_class)
a_class.self_included_modules.include?(::EacRubyUtils::AbstractMethods)
end
end
module ClassMethods
def abstract_methods(*methods_names)
methods_names.each do |method_name|
define_method method_name do
raise_abstract_method(method_name)
end
end
end
end
module InstanceMethods
def respond_to_missing?(method_name, include_private = false)
super || abstract_method?(method_name)
end
def method_missing(method_name, *arguments, &block)
raise_abstract_method(method_name) if abstract_method?(method_name)
super
end
def abstract_method?(method_name)
self.class.abstract_methods.include?(method_name.to_sym)
end
def raise_abstract_method(method_name)
raise ::NoMethodError, "Abstract method \"#{method_name}\" hit in \"#{self}\"" \
" (Class: #{self.class})"
end
end
end
end
Version data entries
156 entries across 156 versions & 3 rubygems