private void AddBraces(
TaggerContext <BraceHighlightTag> context,
ITextSnapshot snapshot,
BraceMatchingResult?braces)
{
if (braces.HasValue)
{
context.AddTag(snapshot.GetTagSpan(braces.Value.LeftSpan.ToSpan(), BraceHighlightTag.StartTag));
context.AddTag(snapshot.GetTagSpan(braces.Value.RightSpan.ToSpan(), BraceHighlightTag.EndTag));
}
}
private async Task ProduceTagsForBracesAsync(TaggerContext <BraceHighlightTag> context, Document document, ITextSnapshot snapshot, int position, bool rightBrace)
{
if (position >= 0 && position <= snapshot.Length)
{
var braces = await _braceMatcherService.GetMatchingBracesAsync(document, position, context.CancellationToken).ConfigureAwait(false);
if (braces.HasValue)
{
if ((!rightBrace && braces.Value.LeftSpan.Start == position) ||
(rightBrace && braces.Value.RightSpan.Start == position))
{
context.AddTag(snapshot.GetTagSpan(braces.Value.LeftSpan.ToSpan(), BraceHighlightTag.StartTag));
context.AddTag(snapshot.GetTagSpan(braces.Value.RightSpan.ToSpan(), BraceHighlightTag.EndTag));
}
}
}
}
private async Task ProduceTagsAsync(TaggerContext <BraceHighlightTag> context, Document document, ITextSnapshot snapshot, int position)
{
var syntaxTree = await document.GetSyntaxTreeAsync(context.CancellationToken).ConfigureAwait(false);
var braceMatcher = document.LanguageServices.GetService <IBraceMatcher>();
if (braceMatcher == null)
{
return;
}
var mappedPosition = syntaxTree.MapRootFilePosition(position);
var result = braceMatcher.FindBraces(syntaxTree, mappedPosition, context.CancellationToken);
if (result == null)
{
return;
}
context.AddTag(snapshot.GetTagSpan(result.Value.LeftSpan.ToSpan(), BraceHighlightTag.Tag));
context.AddTag(snapshot.GetTagSpan(result.Value.RightSpan.ToSpan(), BraceHighlightTag.Tag));
}
private static void AddDiagnostics(TaggerContext <IErrorTag> context, IEnumerable <MappedDiagnostic> mappedDiagnostics, ITextSnapshot snapshot)
{
foreach (var mappedDiagnostic in mappedDiagnostics)
{
context.CancellationToken.ThrowIfCancellationRequested();
if (!mappedDiagnostic.FileSpan.IsInRootFile)
{
continue;
}
var errorType = mappedDiagnostic.Diagnostic.Severity == DiagnosticSeverity.Warning
? PredefinedErrorTypeNames.Warning
: (mappedDiagnostic.Source == DiagnosticSource.SyntaxParsing ? PredefinedErrorTypeNames.SyntaxError : PredefinedErrorTypeNames.CompilerError);
var tag = new ErrorTag(errorType, mappedDiagnostic.Diagnostic.Message);
context.AddTag(snapshot.GetTagSpan(mappedDiagnostic.FileSpan.Span.ToSpan(), tag));
}
}
