private PartialParseResult TryAcceptChange(Span target, TextChange change, PartialParseResult acceptResult = PartialParseResult.Accepted) { string content = change.ApplyChange(target); if (StartsWithKeyword(content)) { return PartialParseResult.Rejected | PartialParseResult.SpanContextChanged; } return acceptResult; }
protected virtual SpanBuilder UpdateSpan(Span target, TextChange normalizedChange) { string newContent = normalizedChange.ApplyChange(target); SpanBuilder newSpan = new SpanBuilder(target); newSpan.ClearSymbols(); foreach (ISymbol sym in Tokenizer(newContent)) { sym.OffsetStart(target.Start); newSpan.Accept(sym); } if (target.Next != null) { SourceLocation newEnd = SourceLocationTracker.CalculateNewLocation(target.Start, newContent); target.Next.ChangeStart(newEnd); } return newSpan; }