yacc.py 文件源码

def validate_error_func(self):
        if self.error_func:
            if isinstance(self.error_func,types.FunctionType):
                ismethod = 0
            elif isinstance(self.error_func, types.MethodType):
                ismethod = 1
            else:
                self.log.error("'p_error' defined, but is not a function or method")
                self.error = 1
                return

            eline = func_code(self.error_func).co_firstlineno
            efile = func_code(self.error_func).co_filename
            self.files[efile] = 1

            if (func_code(self.error_func).co_argcount != 1+ismethod):
                self.log.error("%s:%d: p_error() requires 1 argument",efile,eline)
                self.error = 1

    # Get the tokens map