public void Start(CancellationToken token)
{
try
{
var code = RewriteAndPreprocess();
token.ThrowIfCancellationRequested();
var attributes = _attributeParser.Parse(_component);
token.ThrowIfCancellationRequested();
// temporal coupling... comments must be acquired before we walk the parse tree for declarations
// otherwise none of the annotations get associated to their respective Declaration
var commentListener = new CommentListener();
var annotationListener = new AnnotationListener(new VBAParserAnnotationFactory(), _qualifiedName);
var stopwatch = Stopwatch.StartNew();
ITokenStream stream;
var tree = ParseInternal(_component.Name, code, new IParseTreeListener[] { commentListener, annotationListener }, out stream);
stopwatch.Stop();
if (tree != null)
{
_logger.Trace("IParseTree for component '{0}' acquired in {1}ms (thread {2})", _component.Name, stopwatch.ElapsedMilliseconds, Thread.CurrentThread.ManagedThreadId);
}
var comments = QualifyAndUnionComments(_qualifiedName, commentListener.Comments, commentListener.RemComments);
token.ThrowIfCancellationRequested();
ParseCompleted.Invoke(this, new ParseCompletionArgs
{
ParseTree = tree,
Tokens = stream,
Attributes = attributes,
Comments = comments,
Annotations = annotationListener.Annotations
});
}
catch (COMException exception)
{
_logger.Error(exception, "Exception thrown in thread {0}.", Thread.CurrentThread.ManagedThreadId);
ParseFailure.Invoke(this, new ParseFailureArgs
{
Cause = exception
});
}
catch (SyntaxErrorException exception)
{
_logger.Error(exception, "Exception thrown in thread {0}.", Thread.CurrentThread.ManagedThreadId);
ParseFailure.Invoke(this, new ParseFailureArgs
{
Cause = exception
});
}
catch (OperationCanceledException)
{
_logger.Debug("Component {0}: Operation was Cancelled", _component.Name);
// no results to be used, so no results "returned"
//ParseCompleted.Invoke(this, new ParseCompletionArgs());
}
}
private void DoParseAndTransfer()
{
this.WebBrowserInstance.Document.InvokeScript("parse");
this.WebBrowserInstance.Document.InvokeScript("transfer");
if (this.ParseCompleted != null)
{
ParseCompleted.Invoke(this, EventArgs.Empty);
}
}
/// <summary>
/// Parse C# XML Document
/// </summary>
/// <returns type="Element">Parsed tree structure elements.</returns>
public Element Parse()
{
var members = FirstParse(XmlPath);
ParseCompleted?.Invoke(this, new XmlDocumentParseProgressEventArgs(ParseType.First, 0, 0, null));
var treeElement = SecondParse(members);
ParseCompleted?.Invoke(this, new XmlDocumentParseProgressEventArgs(ParseType.Second, 0, 0, null));
return(treeElement);
}
/// <summary>
/// Parses from text.
/// </summary>
/// <returns>The from text.</returns>
public Element ParseFromText()
{
var reader = new Reader();
reader.LoadFromText(XmlPath);
var members = FirstParse(reader);
ParseCompleted?.Invoke(this, new XmlDocumentParseProgressEventArgs(ParseType.First, 0, 0, null));
var treeElement = SecondParse(members);
ParseCompleted?.Invoke(this, new XmlDocumentParseProgressEventArgs(ParseType.Second, 0, 0, null));
return(treeElement);
}
protected override void OnOperationCompleted(ITextSnapshot input, TParseResult output)
{
ParseCompleted?.Invoke(this, new ParseCompletedEventArgs <TParseResult> (output, input));
}
protected override void OnOperationCompleted(XmlParseResult input, MSBuildParseResult output)
{
ParseCompleted?.Invoke(this, new ParseCompletedEventArgs <MSBuildParseResult> (output, output.Snapshot));
}
protected virtual void OnParseCompleted(T parseResult, ITextSnapshot2 snapshot)
{
ParseCompleted?.Invoke(this, new ParseCompletedEventArgs <T> (parseResult, snapshot));
}
