1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
require 'set'
module Bogus
module HasOverwritenMethods
def self.aliased_name(name)
:"__bogus__alias__#{name}"
end
def self.alias(object, new_name, name)
object.singleton_class.send(:alias_method, new_name, name)
end
def __overwritten_methods__
@__overwritten_methods__ ||= Set.new
end
def __overwrite__(name, method, body)
return if __overwritten_methods__.include?(name)
new_name = HasOverwritenMethods.aliased_name(name)
HasOverwritenMethods.alias(self, new_name, name) if method
__overwritten_methods__ << name
instance_eval(body)
end
def __reset__
__overwritten_methods__.each do |name|
new_name = HasOverwritenMethods.aliased_name(name)
if respond_to?(new_name)
HasOverwritenMethods.alias(self, name, new_name)
instance_eval "undef #{new_name}"
else
instance_eval "undef #{name}"
end
end
@__overwritten_methods__ = nil
@__shadow__ = nil
end
end
end
|
