public IAnalysisIssueVisualization Convert(IAnalysisIssueBase issue, ITextSnapshot textSnapshot = null)
{
var issueSpan = textSnapshot == null
? (SnapshotSpan?)null
: issueSpanCalculator.CalculateSpan(issue, textSnapshot);
var flows = Convert(issue.Flows);
var issueVisualization = new AnalysisIssueVisualization(flows, issue, issueSpan);
if (textSnapshot != null)
{
CalculateSpanForSecondaryLocationsInSameFile(issueVisualization, textSnapshot);
}
return(issueVisualization);
}
/// <summary>
/// Calculate spans for locations that don't have a span, or have a span in a different text buffer.
/// </summary>
/// <remarks>
/// All spans for issues in the this file should have been calculated when the file was analysed (whether primary or secondary).
/// However, there could be secondary locations relating to issues in other files that have not been calculated.
/// Also, if a file has been closed and re-opened, a new text buffer would've been created. So we need to recalculate the spans since the locations would have spans that belong to the old text buffer.
/// </remarks>
private void EnsureUpdatedSpansExist(IEnumerable <IAnalysisIssueLocationVisualization> locVizs, ITextSnapshot currentSnapshot)
{
foreach (var locViz in locVizs)
{
if (!locViz.Span.HasValue || locViz.Span.Value.IsEmpty || locViz.Span.Value.Snapshot.TextBuffer != currentSnapshot.TextBuffer)
{
locViz.Span = spanCalculator.CalculateSpan(locViz.Location, currentSnapshot);
}
}
}
private SnapshotSpan GetOrCalculateLocationSpan(IAnalysisIssueLocationVisualization locationVisualization, ITextView textView)
{
var shouldCalculateSpan = !locationVisualization.Span.HasValue;
if (shouldCalculateSpan)
{
locationVisualization.Span = spanCalculator.CalculateSpan(locationVisualization.Location, textView.TextBuffer.CurrentSnapshot);
}
return(locationVisualization.Span.Value);
}