protected bool IsNumberT2L() { // TODO: meaningful (translated?) error message var t = FirstChild.IsNumber(); if (!SecondChild.IsNumber() == t) { throw new SemanticsErrorException(this, "Children are different"); } return(false); }
protected bool IsNumberN2N() { // TODO: meaningful (translated?) error message if (!FirstChild.IsNumber()) { throw new SemanticsErrorException(this, "First child must be number"); } if (!SecondChild.IsNumber()) { throw new SemanticsErrorException(this, "Second child must be number"); } return(true); }