stream.py 文件源码

def bind(self, target):
        if self.func not in dir(target):
            return None

        funcs = []

        if self.read_pattern is not None:
            def getter():
                return getattr(target, self.func)

            if inspect.isdatadescriptor(getattr(type(target), self.func)):
                getter.__doc__ = 'Getter: ' + inspect.getdoc(getattr(type(target), self.func))

            funcs.append(
                Func(getter, self.read_pattern, return_mapping=self.return_mapping, doc=self.doc))

        if self.write_pattern is not None:
            def setter(new_value):
                setattr(target, self.func, new_value)

            if inspect.isdatadescriptor(getattr(type(target), self.func)):
                setter.__doc__ = 'Setter: ' + inspect.getdoc(getattr(type(target), self.func))

            funcs.append(
                Func(setter, self.write_pattern, argument_mappings=self.argument_mappings,
                     return_mapping=self.return_mapping, doc=self.doc))

        return funcs