Sha256: f8e1e55b43f62cf7ead13597478d5ed3c38896dc4900343d8d4cceae7228cc56
Contents?: true
Size: 1.69 KB
Versions: 9
Compression:
Stored size: 1.69 KB
Contents
require 'rext/object/metaclass'
class Module
##
# Shortcut for including an anonymous module.
def chainable &block
include Module.new(&block)
end
##
# Shortcut for extending with an anonymous module.
def extendable &block
extend Module.new(&block)
end
##
# Call +method+ when conditions are met.
#
# This method provides a simple means of
# utilizing method_missing, and should
# be used in most cases.
#
# When using a regular expression with
# the :if option, all captures are passed
# to the handling method.
#
# === Examples
#
# class Foo
# call_method :find_by, :if => /^find_by_(\w+)/
# def find_by attr, *args
# "finding by #{attr} with #{args.join(', ')}"
# end
# end
#
# foo = Foo.new
# foo.find_by_name('bar') # => "finding by name with bar"
#
# === Options
#
# :if regexp or proc
#
def call_method method, options = {}
chainable {
define_method :method_missing do |meth, *args|
if options[:if].is_a?(Regexp) && meth.to_s =~ options[:if]
send method, *($~.captures + args)
elsif options[:if].respond_to?(:call) && options[:if].call(meth, *args)
send method, *args
else
super
end
end
}
end
##
# Equivalent to defining self.included and
# instance evaluating the module passed.
#
# === Examples
#
# def self.included mod
# mod.instance_eval do
# include InstanceMethods
# end
# end
#
# setup do
# include InstanceMethods
# end
#
def setup &block
meta_def :included do |mod|
mod.instance_eval &block
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems