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));
}