async Task TryStartRenameSession(Workspace workspace, Solution oldSolution, Solution newSolution, CancellationToken cancellationToken)
{
var changedDocuments = GetChangedDocuments(newSolution, oldSolution);
foreach (var documentId in changedDocuments)
{
var document = newSolution.GetDocument(documentId);
var root = await document.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
SyntaxToken?renameTokenOpt = root.GetAnnotatedNodesAndTokens(RenameAnnotation.Kind)
.Where(s => s.IsToken)
.Select(s => s.AsToken())
.Cast <SyntaxToken?> ()
.FirstOrDefault();
if (renameTokenOpt.HasValue)
{
var latestDocument = workspace.CurrentSolution.GetDocument(documentId);
var latestModel = await latestDocument.GetSemanticModelAsync(cancellationToken).ConfigureAwait(false);
var latestRoot = await latestDocument.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
await Runtime.RunInMainThread(async delegate {
try {
var node = latestRoot.FindNode(renameTokenOpt.Value.Parent.Span, false, false);
if (node == null)
{
return;
}
var info = latestModel.GetSymbolInfo(node);
var sym = info.Symbol ?? latestModel.GetDeclaredSymbol(node);
if (sym != null)
{
await new Refactoring.Rename.RenameRefactoring().Rename(sym);
}
else
{
var links = new List <TextLink> ();
var link = new TextLink("name");
link.AddLink(new TextSegment(node.Span.Start, node.Span.Length));
links.Add(link);
var oldVersion = editor.Version;
editor.StartTextLinkMode(new TextLinkModeOptions(links, (arg) => {
//If user cancel renaming revert changes
if (!arg.Success)
{
var textChanges = editor.Version.GetChangesTo(oldVersion).ToList();
foreach (var change in textChanges)
{
foreach (var v in change.TextChanges.Reverse())
{
editor.ReplaceText(v.Offset, v.RemovalLength, v.InsertedText);
}
}
}
})
{
TextLinkPurpose = TextLinkPurpose.Rename
});
}
} catch (Exception ex) {
LoggingService.LogError("Error while renaming " + renameTokenOpt.Value.Parent, ex);
}
});
return;
}
}
}