private async Task <ExportProvider> Compose(object parentInstance)
{
ExportProvider exportProvider = null;
PartDiscovery discovery = PartDiscovery.Combine(
new AttributedPartDiscovery(Resolver.DefaultInstance),
new AttributedPartDiscoveryV1(Resolver.DefaultInstance)); // ".NET MEF" attributes (System.ComponentModel.Composition)
Assembly parentAssembly = parentInstance.GetType().Assembly;
string parentLocation = parentAssembly.Location;
string assemblyPath = parentLocation;
assemblyPath = assemblyPath.Substring(0, assemblyPath.LastIndexOf('\\'));
Helpers desktopBridgeHelper = new Helpers();
List <string> assemblies = new[] { parentLocation }
.Concat(
Directory.EnumerateFiles(assemblyPath, "*.dll", SearchOption.TopDirectoryOnly)
.Where(_ => _.Contains("NUnit3GUI")))
.ToList();
DiscoveredParts discoveredParts = await discovery.CreatePartsAsync(assemblies);
discoveredParts.ThrowOnErrors();
ComposableCatalog catalog = ComposableCatalog.Create(Resolver.DefaultInstance)
.AddParts(discoveredParts)
.WithCompositionService();
CompositionConfiguration config = CompositionConfiguration.Create(catalog);
config.ThrowOnErrors();
IExportProviderFactory epf = config.CreateExportProviderFactory();
exportProvider = epf.CreateExportProvider();
ICompositionService service = exportProvider.GetExportedValue <ICompositionService>();
service.SatisfyImportsOnce(parentInstance);
return(exportProvider);
}
