Sha256: 8d54939878f7dce082ed0c4e85e70bb3b56313da67ab8f3a7f8d2a7be8d86500
Contents?: true
Size: 963 Bytes
Versions: 25
Compression:
Stored size: 963 Bytes
Contents
module Perennial
# Objective-C / Cocoa style 'delegates'.
# Essentially proxies which dispatch only
# when an object responds to the method.
class DelegateProxy < Proxy
def initialize(t)
@__proxy_target__ = t
end
def respond_to?(method, inc_super = false)
true
end
protected
def method_missing(method, *args, &blk)
@__proxy_target__.send(method, *args, &blk) if @__proxy_target__.respond_to?(method)
end
end
module Delegateable
def self.included(parent)
parent.send(:include, InstanceMethods)
end
module InstanceMethods
def delegate=(value)
@delegate = DelegateProxy.new(value)
end
alias delegate_to delegate=
def delegate
@delegate ||= DelegateProxy.new(nil)
end
def real_delegate
@delegate && @delegate.__proxy_target__
end
end
end
end
Version data entries
25 entries across 25 versions & 2 rubygems