public INavigationToken CreateToken(IDefinitionToken analysisToken, IDocument document)
{
if (analysisToken == null)
{
throw new ArgumentNullException(nameof(analysisToken));
}
return(new NavigationToken(analysisToken, document));
}
/// <summary>
/// Returns the description text of the definition in the comment to the right or above the definition.
/// Must be on UI thread
/// </summary>
/// <returns>Description text if exists otherwise null</returns>
public static string GetDescription(this IDefinitionToken token)
{
ThreadHelper.ThrowIfNotOnUIThread();
var serviceProvider = ServiceProvider.GlobalProvider;
var documentFactory = serviceProvider.GetMefService <IDocumentFactory>();
return(documentFactory != null
? GetDescription(token, documentFactory)
: null);
}
/// <summary>
/// Returns the description text of the definition in the comment to the right or above the definition.
/// </summary>
/// <returns>Description text if exists otherwise null</returns>
public static string GetDescription(this IDefinitionToken token, IDocumentFactory documentFactory)
{
var tokenEnd = token.Span.End;
var snapshot = token.Span.Snapshot;
var document = documentFactory.GetOrCreateDocument(snapshot.TextBuffer);
if (document == null)
{
return(null);
}
var tokenizer = document.DocumentTokenizer;
var tokenizerResult = tokenizer.CurrentResult;
if (tokenizerResult.Snapshot != snapshot)
{
return(null);
}
return(TryGetDescriptionToTheRight(tokenizer, tokenizerResult, tokenEnd)
?? TryGetDescriptionAbove(tokenizer, tokenizerResult, tokenEnd));
}
public NavigationToken(IDefinitionToken definition, IDocument document)
{
Document = document;
Definition = definition;
}