public override MurMurVariable VisitComparissonExpression([NotNull] MurMurParser.ComparissonExpressionContext context)
{
var signal = context.COMPARISSON_SIGNAL().GetText();
if (signal == "==")
{
return(new MurMurVariable(Visit(context.expression()[0]) == Visit(context.expression()[1])));
}
else if (signal == "!=")
{
return(new MurMurVariable(Visit(context.expression()[0]) != Visit(context.expression()[1])));
}
else
{
throw new MurMurException(string.Format("Unknown comparisson signal '{0}'", signal), context.start.Line);
}
}
/// <summary>
/// Visit a parse tree produced by the <c>comparissonExpression</c>
/// labeled alternative in <see cref="MurMurParser.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 VisitComparissonExpression([NotNull] MurMurParser.ComparissonExpressionContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by the <c>comparissonExpression</c>
/// labeled alternative in <see cref="MurMurParser.expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitComparissonExpression([NotNull] MurMurParser.ComparissonExpressionContext context)
{
}
