// List<string> GetUsedNamespaces ()
// {
// var scope = CSharpUnresolvedFile.GetUsingScope (document.Editor.Caret.Location);
// var result = new List<string> ();
// while (scope != null) {
// result.Add (scope.NamespaceName);
// var ctx = CSharpUnresolvedFile.GetResolver (Document.Compilation, scope.Region.Begin);
// foreach (var u in scope.Usings) {
// var ns = u.ResolveNamespace (ctx);
// if (ns == null)
// continue;
// result.Add (ns.FullName);
// }
// scope = scope.Parent;
// }
// return result;
// }
public override async Task <int> GetCurrentParameterIndex(int startOffset, CancellationToken token)
{
var analysisDocument = DocumentContext.AnalysisDocument;
var caretOffset = Editor.CaretOffset;
if (analysisDocument == null || startOffset > caretOffset)
{
return(-1);
}
var partialDoc = analysisDocument.WithFrozenPartialSemantics(token);
var result = await ParameterUtil.GetCurrentParameterIndex(partialDoc, startOffset, caretOffset, token).ConfigureAwait(false);
return(result.ParameterIndex);
}