private void Parse(CancellationToken cancellationToken)
{
CollectingErrorSink sink = null;
int version;
Parser parser;
// Log?.Log(TraceEventType.Verbose, $"Parse begins: {Name} ({ModuleType})");
lock (_syncObj) {
version = _buffer.Version;
var options = new ParserOptions {
StubFile = FilePath != null && Path.GetExtension(FilePath).Equals(".pyi", FileSystem.StringComparison)
};
if (ModuleType == ModuleType.User)
{
sink = new CollectingErrorSink();
options.ErrorSink = sink;
}
parser = Parser.CreateParser(new StringReader(_buffer.Text), Interpreter.LanguageVersion, options);
}
var ast = parser.ParseFile(Uri);
// Log?.Log(TraceEventType.Verbose, $"Parse complete: {Name} ({ModuleType})");
lock (_syncObj) {
cancellationToken.ThrowIfCancellationRequested();
if (version != _buffer.Version)
{
throw new OperationCanceledException();
}
// Stored nodes are no longer valid.
_astMap.Clear();
_astMap[this] = ast;
_parseErrors = sink?.Diagnostics ?? Array.Empty <DiagnosticsEntry>();
// Do not report issues with libraries or stubs
if (sink != null)
{
_diagnosticsService?.Replace(Uri, _parseErrors, DiagnosticSource.Parser);
}
ContentState = State.Parsed;
Analysis = new EmptyAnalysis(Services, this);
}
NewAst?.Invoke(this, EventArgs.Empty);
Analyze(ast, version);
lock (_syncObj) {
_parsingTask = null;
}
}
protected PythonModule(string name, ModuleType moduleType, IServiceContainer services)
{
Name = name ?? throw new ArgumentNullException(nameof(name));
Services = services ?? throw new ArgumentNullException(nameof(services));
ModuleType = moduleType;
Log = services.GetService <ILogger>();
Interpreter = services.GetService <IPythonInterpreter>();
Analysis = new EmptyAnalysis(services, this);
_diagnosticsService = services.GetService <IDiagnosticsService>();
}