private static TagSpan GetTagSpan(ITextSnapshot snapshot, int start, int end, int headerIndex)
{
TagSpan tagSpan = null;
try {
int testLen = headerIndex - start + 1;
if (start != -1 && end != -1)
{
int length = end - start - testLen;
if (length > 0)
{
var span = new Span(start + testLen, length);
tagSpan = new TagSpan(
new SnapshotSpan(snapshot, span),
new OutliningTag(snapshot, span, true)
);
}
}
}
catch (ArgumentException) {
// sometimes the parser gives us bad spans, ignore those and fix the parser
Debug.Assert(false, "bad argument when making span/tag");
}
return(tagSpan);
}
public override bool Walk(FunctionObject node) {
// FunctionExpressions contain FunctionObjects.
// Therefore we only need to handle FunctionObjects to handle both.
if (node.Body.Braces != BraceState.StartAndEnd) {
return false;
}
TagSpan span = GetFunctionSpan(_ast, _snapshot, node);
OutliningTagSpans.Add(span);
return base.Walk(node);
}
