public override INode VisitPlusminus([NotNull] PolynomialParser.PlusminusContext context)
{
var left = context.expr()[0];
var right = context.expr()[1];
if (context.MINUS() != null)
{
return(new SubtractNode(Visit(left), Visit(right)));
}
return(new AddNode(Visit(left), Visit(right)));
}
/// <summary>
/// Exit a parse tree produced by the <c>plusminus</c>
/// labeled alternative in <see cref="PolynomialParser.expr"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitPlusminus([NotNull] PolynomialParser.PlusminusContext context)
{
}
/// <summary>
/// Visit a parse tree produced by the <c>plusminus</c>
/// labeled alternative in <see cref="PolynomialParser.expr"/>.
/// <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 VisitPlusminus([NotNull] PolynomialParser.PlusminusContext context)
{
return(VisitChildren(context));
}