//static bool skipFirst = true;
public async Task <QuickInfoItem> GetQuickInfoItemAsync(IAsyncQuickInfoSession session, CancellationToken cancellationToken)
{
if (XSettings.DebuggerIsRunning || XSettings.DisableQuickInfo)
{
await session.DismissAsync();
return(null);
}
var triggerPoint = session.GetTriggerPoint(_textBuffer.CurrentSnapshot);
if (triggerPoint == null)
{
await session.DismissAsync();
return(null);
}
try
{
ModelWalker.Suspend();
var ssp = triggerPoint.Value;
// Map the trigger point down to our buffer.
ITextSnapshot currentSnapshot = ssp.Snapshot;
bool abort = false;
var tokens = _textBuffer.GetDocument();
if (tokens == null)
{
return(null);
}
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
if (!abort)
{
WriteOutputMessage($"Triggerpoint: {triggerPoint.Value.Position}");
// We don't want to lex the buffer. So get the tokens from the last lex run
// and when these are too old, then simply bail out
abort = tokens == null || tokens.SnapShot.Version != currentSnapshot.Version;
}
if (abort)
{
await session.DismissAsync();
return(null);
}
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
var location = _textBuffer.FindLocation(ssp);
CompletionState state;
var tokenList = XSharpTokenTools.GetTokensUnderCursor(location, out state);
// LookUp for the BaseType, reading the TokenList (From left to right)
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
var lookupresult = new List <IXSymbol>();
lookupresult.AddRange(XSharpLookup.RetrieveElement(location, tokenList, state, out var notProcessed, true));
var lastToken = tokenList.LastOrDefault();
//
if (lookupresult.Count > 0)
{
var element = lookupresult[0];
var qiContent = new List <object>();
if (element.Kind == Kind.Constructor && lastToken?.Type != XSharpLexer.CONSTRUCTOR && lastToken?.Type != XSharpLexer.LPAREN)
{
if (element.Parent != null)
{
var xtype = element.Parent as IXTypeSymbol;
var qitm = new XTypeAnalysis(xtype);
AddImage(qiContent, qitm.Image);
var description = new ClassifiedTextElement(qitm.WPFDescription);
qiContent.Add(description);
}
}
else if (element is IXMemberSymbol mem)
{
QuickInfoTypeMember qitm = new QuickInfoTypeMember(mem);
AddImage(qiContent, qitm.Image);
var description = new ClassifiedTextElement(qitm.WPFDescription);
qiContent.Add(description);
}
else if (element is IXVariableSymbol var)
{
QuickInfoVariable qitm = new QuickInfoVariable(var);
AddImage(qiContent, qitm.Image);
var description = new ClassifiedTextElement(qitm.WPFDescription);
qiContent.Add(description);
}
else if (element is IXTypeSymbol xtype)
{
var qitm = new XTypeAnalysis(xtype);
AddImage(qiContent, qitm.Image);
var description = new ClassifiedTextElement(qitm.WPFDescription);
qiContent.Add(description);
}
else
{
var qitm = new XAnalysis(element);
AddImage(qiContent, qitm.Image);
var description = new ClassifiedTextElement(qitm.WPFDescription);
qiContent.Add(description);
}
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
var result = new ContainerElement(ContainerElementStyle.Wrapped, qiContent);
var line = ssp.GetContainingLine();
var lineSpan = _textBuffer.CurrentSnapshot.CreateTrackingSpan(line.Extent, SpanTrackingMode.EdgeInclusive);
return(new QuickInfoItem(lineSpan, result));
}
}
catch (Exception ex)
{
XSettings.LogException(ex, "XSharpQuickInfo.AugmentQuickInfoSession failed : ");
}
finally
{
ModelWalker.Resume();
}
await session.DismissAsync();
return(null);
}
internal static void GotoDefn(ITextView TextView)
{
try
{
if (XSettings.DisableGotoDefinition)
{
return;
}
var file = TextView.TextBuffer.GetFile();
if (file == null || file.XFileType != XFileType.SourceCode)
{
return;
}
WriteOutputMessage("CommandFilter.GotoDefn()");
ModelWalker.Suspend();
var snapshot = TextView.TextBuffer.CurrentSnapshot;
// We don't want to lex the buffer. So get the tokens from the last lex run
// and when these are too old, then simply bail out
var tokens = TextView.TextBuffer.GetDocument();
if (tokens != null)
{
if (tokens.SnapShot.Version != snapshot.Version)
{
return;
}
}
string currentNS = TextView.FindNamespace();
var location = TextView.FindLocation();
var state = CompletionState.General | CompletionState.Types | CompletionState.Namespaces;
var tokenList = XSharpTokenTools.GetTokensUnderCursor(location, out state);
// LookUp for the BaseType, reading the TokenList (From left to right)
var result = new List <IXSymbol>();
result.AddRange(XSharpLookup.RetrieveElement(location, tokenList, state, out var notProcessed));
//
Microsoft.VisualStudio.Shell.ThreadHelper.ThrowIfNotOnUIThread();
if (result.Count > 0)
{
var element = result[0];
if (element is XSourceEntity source)
{
source.OpenEditor();
}
else if (element is XPETypeSymbol petype)
{
GotoSystemType(TextView, petype, petype);
}
else if (element is XPEMemberSymbol pemember)
{
var petype2 = pemember.Parent as XPETypeSymbol;
GotoSystemType(TextView, petype2, pemember);
}
return;
}
//
if (tokenList.Count > 1)
{
// try again with just the last element in the list
var token = tokenList[tokenList.Count - 1];
tokenList.Clear();
tokenList.Add(token);
location = location.With(currentNS);
result.AddRange(XSharpLookup.RetrieveElement(location, tokenList, state, out notProcessed));
}
if (result.Count > 0)
{
var element = result[0];
if (element is XSourceEntity source)
{
source.OpenEditor();
}
//else
//{
// openInObjectBrowser(element.FullName);
//}
//return;
}
}
catch (Exception ex)
{
XSettings.LogException(ex, "Goto failed");
}
finally
{
ModelWalker.Resume();
}
}
