private GherkinFileEditorInfo DoParsePartial(string fileContent, I18n languageService, int lineOffset, out ScenarioEditorInfo firstUnchangedScenario, ITextSnapshot textSnapshot, GherkinFileEditorInfo previousGherkinFileEditorInfo, int changeLastLine, int changeLineDelta)
{
var gherkinListener = new GherkinFileEditorParserListener(textSnapshot, classifications, previousGherkinFileEditorInfo, lineOffset, changeLastLine, changeLineDelta);
return DoScan(fileContent, textSnapshot, lineOffset, languageService, gherkinListener, 0, out firstUnchangedScenario);
}
private GherkinFileEditorInfo DoScan(string fileContent, ITextSnapshot textSnapshot, int lineOffset, I18n languageService, GherkinFileEditorParserListener gherkinListener, int errorRertyCount, out ScenarioEditorInfo firstUnchangedScenario)
{
const int MAX_ERROR_RETRY = 5;
const int NO_ERROR_RETRY_FOR_LINES = 5;
firstUnchangedScenario = null;
try
{
Lexer lexer = languageService.lexer(gherkinListener);
lexer.scan(fileContent, null, 0);
}
catch (PartialListeningDoneException partialListeningDoneException)
{
firstUnchangedScenario = partialListeningDoneException.FirstUnchangedScenario;
}
catch(LexingError lexingError)
{
int? errorLine = GetErrorLine(lexingError, lineOffset);
if (errorLine != null &&
errorLine.Value < textSnapshot.LineCount - NO_ERROR_RETRY_FOR_LINES &&
errorRertyCount < MAX_ERROR_RETRY)
{
//add error classification & continue
var restartLineNumber = errorLine.Value + 1;
int restartPosition = textSnapshot.GetLineFromLineNumber(restartLineNumber).Start;
string restartFileContent = textSnapshot.GetText(restartPosition, textSnapshot.Length - restartPosition);
gherkinListener.LineOffset = restartLineNumber;
return DoScan(restartFileContent, textSnapshot,
restartLineNumber, languageService, gherkinListener,
errorRertyCount + 1,
out firstUnchangedScenario);
}
}
// ReSharper disable EmptyGeneralCatchClause
catch
// ReSharper restore EmptyGeneralCatchClause
{
// unknown error
}
return gherkinListener.GetResult();
}
private GherkinFileEditorInfo DoParsePartial(string fileContent, I18n languageService, int lineOffset, out ScenarioEditorInfo firstUnchangedScenario, ITextSnapshot textSnapshot, GherkinFileEditorInfo previousGherkinFileEditorInfo, int changeLastLine, int changeLineDelta)
{
GherkinScanner scanner = new GherkinScanner(languageService, fileContent, lineOffset);
var gherkinListener = new GherkinFileEditorParserListener(textSnapshot, classifications, previousGherkinFileEditorInfo, changeLastLine, changeLineDelta);
firstUnchangedScenario = null;
try
{
scanner.Scan(gherkinListener);
}
catch (PartialListeningDoneException partialListeningDoneException)
{
firstUnchangedScenario = partialListeningDoneException.FirstUnchangedScenario;
}
return gherkinListener.GetResult();
}
