public override Expression VisitSignal([NotNull] SignalContext context)
{
Signal signal = null;
if (context.channel().single() != null)
{
var varIndex = int.Parse(context.channel().single().index().NUMBER().ToString());
if (context.nature().input() != null)
{
if (context.nature().input().presAction().HYPHEN() == null)
{
throw new UnsupportedSyntaxException("Present action of signal", context.nature().input().presAction().Start);
}
signal = new SingleInputSignal {
Name = context.nature().input().IDENTIFIER().ToString(), VarIndex = varIndex
};
}
else if (context.nature().output() != null)
{
if (context.nature().output().outAction().HYPHEN() == null)
{
throw new UnsupportedSyntaxException("Output action of signal", context.nature().output().outAction().Start);
}
signal = new SingleOutputSignal {
Name = context.nature().output().IDENTIFIER().ToString(), VarIndex = varIndex
};
}
}
else
{
throw new UnsupportedSyntaxException($"Channel {context.channel()}", context.channel().Start);
}
if (context.@bool() != null)
{
signal.BoolIndex = int.Parse(context.@bool().index().NUMBER().ToString());
}
Oc5Model.Signals.Add(signal);
return(null);
}