/// <summary>
 /// Visits the port pulses
 /// </summary>
 /// <param name="line">Line to add the tag for</param>
 /// <param name="context">PortPulseNode to visit</param>
 /// <param name="lineNo">Current line numer</param>
 /// <param name="collectedSpans">Collection of spancs found</param>
 private void Visit(ITextSnapshotLine line, PortPulseNode context, int lineNo, List <TagSpan <Z80TestTokenTag> > collectedSpans)
 {
     if (context == null ||
         lineNo < context.Span.StartLine ||
         lineNo > context.Span.EndLine)
     {
         return;
     }
     Visit(line, context.ValueExpr, lineNo, collectedSpans);
     Visit(line, context.Pulse1Expr, lineNo, collectedSpans);
     Visit(line, context.Pulse2Expr, lineNo, collectedSpans);
 }
示例#2
0
 /// <summary>
 /// Visits the port pulses
 /// </summary>
 /// <param name="line">Line to add the tag for</param>
 /// <param name="context">PortPulseNode to visit</param>
 /// <param name="lineNo">Current line number</param>
 /// <param name="collectedSpans">Collection of spans found</param>
 private void Visit(ITextSnapshotLine line, PortPulseNode context, int lineNo,
                    List <ClassificationSpan> collectedSpans)
 {
     if (context == null ||
         lineNo < context.Span.StartLine ||
         lineNo > context.Span.EndLine)
     {
         return;
     }
     Visit(line, context.ValueExpr, lineNo, collectedSpans);
     Visit(line, context.Pulse1Expr, lineNo, collectedSpans);
     Visit(line, context.Pulse2Expr, lineNo, collectedSpans);
 }
        /// <summary>
        /// Visit a parse tree produced by <see cref="Z80TestParser.portPulse"/>.
        /// <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 override object VisitPortPulse(Z80TestParser.PortPulseContext context)
        {
            if (IsInvalidContext(context))
            {
                return(null);
            }
            var node = new PortPulseNode(context);

            if (context.expr().Length > 0)
            {
                node.ValueExpr = (ExpressionNode)VisitExpr(context.expr()[0]);
            }

            if (context.expr().Length > 1)
            {
                node.Pulse1Expr = (ExpressionNode)VisitExpr(context.expr()[1]);
            }
            if (context.expr().Length > 2)
            {
                node.Pulse2Expr = (ExpressionNode)VisitExpr(context.expr()[2]);
                node.IsInterval = context.GetChild(4).GetText() == "..";
            }
            return(node);
        }