private async Task <Solution> GetUpdatedSolutionAsync(CancellationToken cancellationToken)
{
var newDocument = await GetUpdatedDocumentAsync(cancellationToken).ConfigureAwait(false);
var newRoot = await newDocument.GetSyntaxRootAsync(cancellationToken).ConfigureAwait(false);
// Suppress diagnostics on the import we create. Because we only get here when we are
// adding a nuget package, it is certainly the case that in the preview this will not
// bind properly. It will look silly to show such an error, so we just suppress things.
var updatedRoot = newRoot.WithAdditionalAnnotations(SuppressDiagnosticsAnnotation.Create());
var updatedDocument = newDocument.WithSyntaxRoot(updatedRoot);
return(updatedDocument.Project.Solution);
}
protected override Task <Document> AddImportAsync(
SyntaxNode contextNode, IReadOnlyList <string> namespaceParts, Document document, bool placeSystemNamespaceFirst, CancellationToken cancellationToken)
{
var root = GetCompilationUnitSyntaxNode(contextNode, cancellationToken);
// Suppress diagnostics on the import we create. Because we only get here when we are
// adding a nuget package, it is certainly the case that in the preview this will not
// bind properly. It will look silly to show such an error, so we just suppress things.
var usingDirective = SyntaxFactory.UsingDirective(
CreateNameSyntax(namespaceParts, namespaceParts.Count - 1)).WithAdditionalAnnotations(
SuppressDiagnosticsAnnotation.Create());
var service = document.GetLanguageService <IAddImportsService>();
var newRoot = service.AddImport(root, contextNode, usingDirective, placeSystemNamespaceFirst);
return(Task.FromResult(document.WithSyntaxRoot(newRoot)));
}
protected override Task <Document> AddImportAsync(
SyntaxNode contextNode, IReadOnlyList <string> namespaceParts, Document document, bool placeSystemNamespaceFirst, CancellationToken cancellationToken)
{
var root = GetCompilationUnitSyntaxNode(contextNode, cancellationToken);
// Suppress diagnostics on the import we create. Because we only get here when we are
// adding a nuget package, it is certainly the case that in the preview this will not
// bind properly. It will look silly to show such an error, so we just suppress things.
var simpleUsingDirective = SyntaxFactory.UsingDirective(
CreateNameSyntax(namespaceParts, namespaceParts.Count - 1)).WithAdditionalAnnotations(
SuppressDiagnosticsAnnotation.Create());
// If we have an existing using with this name then don't bother adding this new using.
if (root.Usings.Any(u => u.IsEquivalentTo(simpleUsingDirective, topLevel: false)))
{
return(Task.FromResult(document));
}
var newRoot = root.AddUsingDirective(
simpleUsingDirective, contextNode, placeSystemNamespaceFirst,
Formatter.Annotation);
return(Task.FromResult(document.WithSyntaxRoot(newRoot)));
}