python 黑魔法收集

標籤：self   from   fas   cto   ssd   class   收集   ini   init   

黑魔法收集為類的建立省略 self

from types import FunctionTypefrom byteplay import Code, opmapdef MetaClassFactory(function):    class MetaClass(type):        def __new__(meta, classname, bases, classDict):            for attributeName, attribute in classDict.items():                if type(attribute) == FunctionType:                    attribute = function(attribute)                newClassDict[attributeName] = attribute            return  type.__new__(meta, classname, bases, classDict)    return MetaClassdef _transmute(opcode, arg):    if ((opcode == opmap['LOAD_GLOBAL']) and        (arg == 'self')):        return opmap['LOAD_FAST'], arg    return opcode, argdef selfless(function):    code = Code.from_code(function.func_code)    code.args = tuple(['self'] + list(code.args))    code.code = [_transmute(op, arg) for op, arg in code.code]    function.func_code = code.to_code()    return functionSelfless = MetaClassFactory(selfless)class Test(object):    __metaclass__ = Selfless    def __init__(x=None):        self.x = x    def getX():        return self.x    def setX(x):        self.x = xtest = Test()print(test.getX())test.setX(7)print(test.getX())

python 黑魔法收集