private void Rescan(ITokenizerResult tokenizerResult, RescanReason rescanReason, CancellationToken cancellationToken)
{
if (_resultsRequests.ContainsKey(tokenizerResult.Snapshot))
{
return;
}
_resultsRequests.Add(tokenizerResult.Snapshot, RunAnalysisAsync(tokenizerResult, rescanReason, cancellationToken));
}
private void TokenizerUpdated(ITokenizerResult result, CancellationToken ct)
{
var tokens = result.UpdatedTokens;
if (!tokens.Any())
{
return;
}
_currentResult = result;
var start = tokens.First().GetStart(result.Snapshot);
var end = tokens.Last().GetEnd(result.Snapshot);
TagsChanged?.Invoke(this, new SnapshotSpanEventArgs(new SnapshotSpan(result.Snapshot, new Span(start, end - start))));
}
private async Task <IAnalysisResult> RunParserAsync(ITokenizerResult tokenizerResult, RescanReason reason, CancellationToken cancellationToken)
{
// TODO: for the future "GoTo include" feature
var includes = new List <IDocument>();
try
{
var parserResult = await _parser.RunAsync(_document, tokenizerResult.Snapshot, tokenizerResult.Tokens, cancellationToken);
var analysisResult = new AnalysisResult(_document, parserResult, includes, tokenizerResult.Snapshot);
CurrentResult = analysisResult;
AnalysisUpdated?.Invoke(analysisResult, reason, cancellationToken);
return(analysisResult);
}
catch (AggregateException /* tokenizer changed but plinq haven't checked CancellationToken yet */)
{
throw new OperationCanceledException();
}
}
private static string TryGetDescriptionAbove(IDocumentTokenizer tokenizer, ITokenizerResult tokenizerResult, SnapshotPoint tokenEnd)
{
var lines = new LinkedList <string>();
var currentLineNumber = tokenEnd.GetContainingLine().LineNumber - 1;
var snapshot = tokenEnd.Snapshot;
while (currentLineNumber >= 0)
{
var currentLine = snapshot.GetLineFromLineNumber(currentLineNumber);
var currentLineComment = tokenizerResult
.GetTokens(new Span(currentLine.Start, currentLine.Length))
.ToList();
// if there are some other tokens, then the comment ended
if (currentLineComment.Any(t =>
!tokenizer.IsTypeOf(t.Type, RadAsmTokenType.Comment) &&
!tokenizer.IsTypeOf(t.Type, RadAsmTokenType.Whitespace)))
{
break;
}
currentLineComment.RemoveAll(t =>
tokenizer.IsTypeOf(t.Type, RadAsmTokenType.Whitespace));
if (currentLineComment.Count != 1)
{
break;
}
var trackingToken = currentLineComment.First();
var tokenSpan = new SnapshotSpan(snapshot, trackingToken.GetSpan(snapshot));
var tokenText = GetCommentText(tokenSpan.GetText());
lines.AddFirst(tokenText);
currentLineNumber = tokenSpan.Start.GetContainingLine().LineNumber - 1;
}
return(lines.Count != 0
? string.Join(System.Environment.NewLine, lines)
: null);
}
private Task <IAnalysisResult> RunAnalysisAsync(ITokenizerResult tokenizerResult, RescanReason reason, CancellationToken cancellationToken) => Task.Run(() => RunParserAsync(tokenizerResult, reason, cancellationToken), cancellationToken);
private void ForceRescan(ITokenizerResult tokenizerResult, RescanReason rescanReason, CancellationToken cancellationToken)
{
_resultsRequests.Remove(tokenizerResult.Snapshot);
_resultsRequests.Add(tokenizerResult.Snapshot, RunAnalysisAsync(tokenizerResult, rescanReason, cancellationToken));
}
private void TokenizerUpdated(ITokenizerResult tokenizerResult, CancellationToken cancellationToken) => Rescan(tokenizerResult, RescanReason.ContentChanged, cancellationToken);
private static string TryGetDescriptionToTheRight(IDocumentTokenizer tokenizer, ITokenizerResult tokenizerResult, SnapshotPoint tokenEnd)
{
var currentLine = tokenEnd.GetContainingLine();
var currentLineComment = tokenizerResult
.GetTokens(new Span(tokenEnd, currentLine.End - tokenEnd))
.Where(t => tokenizer.IsTypeOf(t.Type, RadAsmTokenType.Comment))
.ToList();
if (currentLineComment.Count == 0)
{
return(null);
}
var text = currentLineComment
.First()
.GetText(tokenEnd.Snapshot);
return(GetCommentText(text));
}