private IEnumerable <ISignature> HandleComma(VsText.ITextSnapshot snapshot, ProbeAppSettings appSettings)
{
ThreadHelper.ThrowIfNotOnUIThread();
var fileStore = CodeModel.FileStore.GetOrCreateForTextBuffer(_textBuffer);
if (fileStore != null)
{
var fileName = VsTextUtil.TryGetDocumentFileName(_textBuffer);
var model = fileStore.GetMostRecentModel(appSettings, fileName, snapshot, "Signature help after ','");
var modelPos = (new VsText.SnapshotPoint(snapshot, _triggerPos)).TranslateTo(model.Snapshot, VsText.PointTrackingMode.Negative).Position;
var argsToken = model.File.FindDownward <ArgsToken>().Where(t => t.Span.Start < modelPos && (t.Span.End > modelPos || !t.IsTerminated)).LastOrDefault();
if (argsToken != null && argsToken.Signature != null)
{
var modelSpan = new VsText.SnapshotSpan(model.Snapshot, argsToken.Span.ToVsTextSpan());
var snapshotSpan = modelSpan.TranslateTo(snapshot, VsText.SpanTrackingMode.EdgeInclusive);
var applicableToSpan = snapshot.CreateTrackingSpan(snapshotSpan.Span, VsText.SpanTrackingMode.EdgeInclusive, 0);
yield return(CreateSignature(_textBuffer, argsToken.Signature, applicableToSpan));
foreach (var sig in argsToken.SignatureAlternatives)
{
yield return(CreateSignature(_textBuffer, sig, applicableToSpan));
}
}
}
}
private IEnumerable <ISignature> HandleOpenBracket(VsText.ITextSnapshot snapshot, ProbeAppSettings appSettings)
{
ThreadHelper.ThrowIfNotOnUIThread();
var lineText = snapshot.GetLineTextUpToPosition(_triggerPos);
var match = _rxFuncBeforeBracket.Match(lineText);
if (match.Success)
{
var line = snapshot.GetLineFromPosition(_triggerPos);
var word1 = match.Groups[2].Value;
var word1Start = line.Start.Position + match.Groups[2].Index;
var funcName = match.Groups[3].Value;
var funcNameStart = line.Start.Position + match.Groups[3].Index;
var fileStore = FileStore.GetOrCreateForTextBuffer(_textBuffer);
if (fileStore != null)
{
if (!string.IsNullOrEmpty(word1))
{
VsText.ITrackingSpan applicableToSpan = null;
var fileName = VsTextUtil.TryGetDocumentFileName(snapshot.TextBuffer);
var model = fileStore.GetMostRecentModel(appSettings, fileName, snapshot, "Signature help after '(' - dot separated words");
var modelPos = model.AdjustPosition(word1Start, snapshot);
foreach (var word1Def in model.DefinitionProvider.GetAny(modelPos, word1))
{
if (!word1Def.AllowsChild)
{
continue;
}
foreach (var word2Def in word1Def.GetChildDefinitions(funcName))
{
if (!word2Def.ArgumentsRequired)
{
continue;
}
if (applicableToSpan == null)
{
applicableToSpan = snapshot.CreateTrackingSpan(new VsText.Span(_triggerPos, 0), VsText.SpanTrackingMode.EdgeInclusive);
}
yield return(CreateSignature(_textBuffer, word2Def.ArgumentsSignature, applicableToSpan));
}
}
}
else
{
VsText.ITrackingSpan applicableToSpan = null;
var fileName = VsTextUtil.TryGetDocumentFileName(snapshot.TextBuffer);
var model = fileStore.GetMostRecentModel(appSettings, fileName, snapshot, "Signature help after '('");
var modelPos = model.AdjustPosition(funcNameStart, snapshot);
foreach (var def in model.DefinitionProvider.GetAny(modelPos, funcName))
{
if (!def.ArgumentsRequired)
{
continue;
}
if (applicableToSpan == null)
{
applicableToSpan = snapshot.CreateTrackingSpan(new VsText.Span(_triggerPos, 0), VsText.SpanTrackingMode.EdgeInclusive);
}
yield return(CreateSignature(_textBuffer, def.ArgumentsSignature, applicableToSpan));
}
}
}
}
}
