private async Task RemoveEmptyUsingStatementsAsync(
)
{
foreach (var documentFilePath in _workspace.EnumerateAllDocumentFilePaths(Predicate.IsProjectInScope, Predicate.IsDocumentInScope))
{
if (documentFilePath == null)
{
continue;
}
bool r = true;
do
{
var document = _workspace.GetDocument(documentFilePath);
if (document == null)
{
continue;
}
var syntaxRoot = await document.GetSyntaxRootAsync();
if (syntaxRoot == null)
{
continue;
}
var namespaces = syntaxRoot
.DescendantNodes()
.OfType <UsingDirectiveSyntax>()
.ToList()
;
if (namespaces.Count == 0)
{
continue;
}
var toRemove = new List <SyntaxNode>();
foreach (var n in namespaces)
{
var nname = n.Name.ToString();
if (!_namespaceCenter.NamespacesToRemove.Contains(nname))
{
//there is a types in this namespace
continue;
}
toRemove.Add(n);
}
if (toRemove.Count > 0)
{
syntaxRoot = syntaxRoot !.RemoveNodes(toRemove, SyntaxRemoveOptions.KeepNoTrivia);
if (syntaxRoot != null)
{
var changedDocument = document.WithSyntaxRoot(syntaxRoot);
r = _workspace.TryApplyChanges(changedDocument.Project.Solution);
}
}
}while (!r);
}
}
