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44 lines
978 B
Python
44 lines
978 B
Python
#!/usr/bin/env python
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# --!-- coding: utf8 --!--
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class UniqueID:
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def __init__(self, host, value: int):
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self.host = host
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self.value = value
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def __str__(self):
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return str(self.value)
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class UniqueIDHost:
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def __init__(self):
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self.counter = 0
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self.uids = dict()
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def reset(self):
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self.counter = 0
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self.uids.clear()
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def newID(self):
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uid = UniqueID(self, self.counter)
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self.counter = self.counter + 1
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self.uids[uid.value] = uid
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return uid
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def loadID(self, value: int):
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if value in self.uids:
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raise ValueError("ID not unique: " + str(value))
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uid = UniqueID(self, value)
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self.counter = max(self.counter, uid.value + 1)
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self.uids[uid.value] = uid
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return uid
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def removeID(self, uid: UniqueID):
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if uid.host != self:
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raise ValueError("ID not bound to host!")
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self.uids.pop(uid.value)
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