internal void UpdateErrorList(ITextSnapshot snapshot)
{
if (this.errorListProvider == null)
{
return;
}
try
{
this.errorListProvider.SuspendRefresh();
this.ClearErrors();
SourceText sourceText = this.singletons.SourceTextCache.Get(snapshot);
IReadOnlyList <ParseError> errors = this.singletons.FeatureContainer.DiagnosticsProvider.GetDiagnostics(sourceText);
if (errors.Count == 0)
{
return;
}
int errorCount = 0;
for (int i = 0; i < errors.Count; ++i)
{
ParseError error = errors[i];
if (errorCount >= Constants.MaximumErrorsPerFile)
{
break;
}
SnapshotSpan errorSnapshotSpan = EditorUtilities.CreateSnapshotSpan(snapshot, error.Start, error.Length);
string filePath = snapshot.TextBuffer.GetFilePath();
Debug.Assert(filePath != null, "We should always be able to get the moniker for a file opened in the editor (even if it hasn't been saved)");
if (!string.IsNullOrEmpty(filePath))
{
ErrorListItem errorListItem = this.CreateErrorListItem(errorSnapshotSpan, error, filePath);
this.errorListProvider.Tasks.Add(errorListItem);
}
errorCount++;
}
}
finally
{
this.errorListProvider.ResumeRefresh();
}
}
private void ClearErrors()
{
foreach (object task in this.errorListProvider.Tasks)
{
ErrorListItem errorTask = task as ErrorListItem;
if (errorTask != null)
{
errorTask.Navigate -= this.OnErrorListItemNavigate;
}
}
this.errorListProvider.Tasks.Clear();
}
private ErrorListItem CreateErrorListItem(SnapshotSpan span, ParseError error, string filePath)
{
ITextSnapshotLine line = span.Snapshot.GetLineFromPosition(span.Start);
var errorListItem = new ErrorListItem(span);
errorListItem.Category = TaskCategory.All;
errorListItem.Priority = TaskPriority.Normal;
errorListItem.Document = filePath;
errorListItem.ErrorCategory = TaskErrorCategory.Error;
errorListItem.Text = error.Message;
errorListItem.Line = line.LineNumber;
errorListItem.Column = Math.Min(line.End, span.Start) - line.Start;
errorListItem.Navigate += this.OnErrorListItemNavigate;
return errorListItem;
}
private ErrorListItem CreateErrorListItem(SnapshotSpan span, ParseError error, string filePath)
{
ITextSnapshotLine line = span.Snapshot.GetLineFromPosition(span.Start);
var errorListItem = new ErrorListItem(span);
errorListItem.Category = TaskCategory.All;
errorListItem.Priority = TaskPriority.Normal;
errorListItem.Document = filePath;
errorListItem.ErrorCategory = TaskErrorCategory.Error;
errorListItem.Text = error.Message;
errorListItem.Line = line.LineNumber;
errorListItem.Column = Math.Min(line.End, span.Start) - line.Start;
errorListItem.Navigate += this.OnErrorListItemNavigate;
return(errorListItem);
}
