/// <summary>
/// Visit a parse tree produced by the <c>ChangeSign</c>
/// labeled alternative in <see cref="CalculatorParser.unaryMinus"/>.
/// <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 VisitChangeSign([NotNull] CalculatorParser.ChangeSignContext context)
{
return(VisitChildren(context));
}
public override Double VisitChangeSign(CalculatorParser.ChangeSignContext ctx)
{
return(-1 * Visit(ctx.unaryMinus()));
}
/// <summary>
/// Visita el nodo correspondiente al menos unario
/// </summary>
/// <param name="context">Variable de contexto</param>
/// <returns>El valor negativo del resultado a la visita de su nodo hijo</returns>
public override double VisitChangeSign(CalculatorParser.ChangeSignContext context)
{
return(-1.0d * Visit(context.unaryMinus()));
}
