public object visitSuperExpr(Expr.Super expr) { if (currentClass == ClassType.NONE) { Lox.error(expr.Keyword, "Cannot use 'super' outisde of class"); } else if (currentClass != ClassType.SUBCLASS) { Lox.error(expr.Keyword, "Cannot use 'super' in a class with no superclass"); } resolveLocal(expr, expr.Keyword); return(null); }
public object visitSuperExpr(Expr.Super expr) { int distance = locals[expr]; LoxClass superClass = (LoxClass)env.getAt( distance, "super"); LoxInstance instance = (LoxInstance)env.getAt( distance - 1, "this"); LoxFunction method = superClass.findMethod(expr.Method.Lexeme); if (method == null) { throw new RuntimeError(expr.Method, $"Undefined propert '{expr.Method.Lexeme}'"); } return(method.bind(instance)); }
public string visitSuperExpr(Expr.Super expr) { throw new NotImplementedException(); }