op.py 文件源码

def c_init_code_struct(self, node, name, sub):
        """
        Optional: return a code string specific to the apply
        to be inserted in the struct initialization code.

        Parameters
        ----------
        node : an Apply instance in the graph being compiled
        name : str
            A unique name to distinguish variables from those of other nodes.
        sub
            A dictionary of values to substitute in the code.
            Most notably it contains a 'fail' entry that you should place in
            your code after setting a python exception to indicate an error.

        Raises
        ------
        MethodNotDefined
            The subclass does not override this method.

        """
        raise utils.MethodNotDefined("c_init_code_apply", type(self),
                                     self.__class__.__name__)