Exemple #1
0
        private void FormatTrackingSpan(IBraceCompletionSession session, bool shouldHonorAutoFormattingOnCloseBraceOption)
        {
            if (!session.SubjectBuffer.GetFeatureOnOffOption(FeatureOnOffOptions.AutoFormattingOnCloseBrace) && shouldHonorAutoFormattingOnCloseBraceOption)
            {
                return;
            }

            var snapshot      = session.SubjectBuffer.CurrentSnapshot;
            var startPoint    = session.OpeningPoint.GetPoint(snapshot);
            var endPoint      = session.ClosingPoint.GetPoint(snapshot);
            var startPosition = startPoint.Position;
            var endPosition   = endPoint.Position;

            var document = snapshot.GetOpenDocumentInCurrentContextWithChanges();
            var style    = document != null
                ? document.GetOptionsAsync(CancellationToken.None).WaitAndGetResult(CancellationToken.None).GetOption(FormattingOptions.SmartIndent)
                : FormattingOptions.SmartIndent.DefaultValue;

            if (style == FormattingOptions.IndentStyle.Smart)
            {
                // skip whitespace
                while (startPosition >= 0 && char.IsWhiteSpace(snapshot[startPosition]))
                {
                    startPosition--;
                }

                // skip token
                startPosition--;
                while (startPosition >= 0 && !char.IsWhiteSpace(snapshot[startPosition]))
                {
                    startPosition--;
                }
            }

            session.SubjectBuffer.Format(TextSpan.FromBounds(Math.Max(startPosition, 0), endPosition));
        }
 /// <summary>
 /// It is unclear why, but we are sometimes asked to navigate to a <see cref="TextSpan"/>
 /// that is not inside the bounds of the associated <see cref="Document"/>. This method
 /// returns a span that is guaranteed to be inside the <see cref="Document"/> bounds. If
 /// the returned span is different from the given span, then the worst observable behavior
 /// is either no navigation or navigation to the end of the document.
 /// See https://github.com/dotnet/roslyn/issues/7660 for more details.
 /// </summary>
 private static TextSpan GetSpanWithinDocumentBounds(TextSpan span, int documentLength)
 {
     return(TextSpan.FromBounds(GetPositionWithinDocumentBounds(span.Start, documentLength), GetPositionWithinDocumentBounds(span.End, documentLength)));
 }