public override AstNode VisitAccess(StannumParser.AccessContext context) { if (!(Visit(context.Subject) is Expr subject)) { throw new Exception("Unrecognized expression!"); } if (!(Visit(context.Field) is Identifier field)) { throw new Exception("Unrecognized identifier!"); } return(new BinaryExpr(subject, context.Op.Text, field)); }
/// <summary> /// Visit a parse tree produced by the <c>Access</c> /// labeled alternative in <see cref="StannumParser.accessOrCall"/>. /// <para> /// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/> /// on <paramref name="context"/>. /// </para> /// </summary> /// <param name="context">The parse tree.</param> /// <return>The visitor result.</return> public virtual Result VisitAccess([NotNull] StannumParser.AccessContext context) { return(VisitChildren(context)); }