package object // error encountered. This object is tracked through the evaluator and when // encountered stops evaluation of the program or body of a function. type Error struct { Message string } func (e Error) Bool() bool { return false } func (e Error) Type() Type { return ErrorType } func (e Error) Inspect() string { return "Error: " + e.Message } func (e Error) Clone() Object { return Error{Message: e.Message} } func (e Error) String() string { return e.Message }