enumeration.py 文件源码

def __init__(self, name, enumList):
        self.__doc__ = name
        lookup = {}
        reverseLookup = {}
        i = 0
        uniqueNames = []
        uniqueValues = []
        for x in enumList:
            if isinstance(x, types.TupleType):
                x, i = x
            if not isinstance(x, types.StringType):
                raise EnumException, "enum name is not a string: " + x
            if not isinstance(i, types.IntType):
                raise EnumException, "enum value is not an integer: " + i
            if x in uniqueNames:
                raise EnumException, "enum name is not unique: " + x
            if i in uniqueValues:
                raise EnumException, "enum value is not unique for " + x
            uniqueNames.append(x)
            uniqueValues.append(i)
            lookup[x] = i
            reverseLookup[i] = x
            i = i + 1
        self.lookup = lookup
        self.reverseLookup = reverseLookup