/// <summary>
/// Visit a parse tree produced by the <c>UnaryMinus</c>
/// labeled alternative in <see cref="CalcParser.expression"/>.
/// <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 VisitUnaryMinus([NotNull] CalcParser.UnaryMinusContext context)
{
return(VisitChildren(context));
}
public override double VisitUnaryMinus(CalcParser.UnaryMinusContext context)
{
return(-1 * WalkLeft(context));
}
/// <summary>
/// Exit a parse tree produced by the <c>UnaryMinus</c>
/// labeled alternative in <see cref="CalcParser.expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitUnaryMinus([NotNull] CalcParser.UnaryMinusContext context)
{
}
