forked from faif/python-patterns
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathprototype.py
More file actions
35 lines (26 loc) · 729 Bytes
/
prototype.py
File metadata and controls
35 lines (26 loc) · 729 Bytes
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
from copy import deepcopy
class Prototype:
def __init__(self):
self._objs = {}
def registerObject(self, name, obj):
"""
register an object.
"""
self._objs[name] = obj
def unregisterObject(self, name):
"""unregister an object"""
del self._objs[name]
def clone(self, name, **attr):
"""clone a registered object and add/replace attr"""
obj = deepcopy(self._objs[name])
obj.__dict__.update(attr)
return obj
if __name__ == '__main__':
class A:
pass
a = A()
prototype = Prototype()
prototype.registerObject("a", a)
b = prototype.clone("a", a=1, b=2, c=3)
print(a)
print(b.a, b.b, b.c)