private static bool TryGetExportName(ExportDefinition export, [NotNullWhen(returnValue: true)] out string?name)
{
if (!export.Metadata.TryGetValue("Name", out var nameObj) ||
nameObj is not string { Length : > 0 })
internal static object?GetExportedValueFromComposedPart(ImportEngine?engine, ComposablePart part, ExportDefinition definition)
{
if (engine != null)
{
try
{
engine.SatisfyImports(part);
}
catch (CompositionException ex)
{
throw ExceptionBuilder.CreateCannotGetExportedValue(part, definition, ex);
}
}
try
{
return(part.GetExportedValue(definition));
}
catch (ComposablePartException ex)
{
throw ExceptionBuilder.CreateCannotGetExportedValue(part, definition, ex);
}
}
public override bool IsConstraintSatisfiedBy(ExportDefinition exportDefinition)
{
Requires.NotNull(exportDefinition, nameof(exportDefinition));
return(_sourceDefinition.IsConstraintSatisfiedBy(exportDefinition));
}
public override object GetExportedValue(ExportDefinition definition)
{
throw new NotImplementedException();
}
public override object GetExportedValue(ExportDefinition definition)
{
Assert.Fail();
return(null);
}
public PartCreatorExportDefinition(ExportDefinition productDefinition)
: base()
{
_productDefinition = productDefinition;
}
public NonSharedCatalogExport(CatalogExportProvider catalogExportProvider,
ComposablePartDefinition partDefinition, ExportDefinition definition)
: base(catalogExportProvider, partDefinition, definition)
{
}
static PartCreator <T> CreatePartCreatorOfTWithMetadata <T, TMetadata>(ImportDefinition productImport, ExportProvider sourceProvider, ExportDefinition productDefinition)
{
Func <PartLifetimeContext <T> > creator = CreatePartLifetimeContextCreator <T>(productImport, sourceProvider, productDefinition);
return(new PartCreator <T, TMetadata>(creator, AttributedModelServices.GetMetadataView <TMetadata>(productDefinition.Metadata)));
}
static PartCreator <T> CreatePartCreatorOfT <T>(ImportDefinition productImport, ExportProvider sourceProvider, ExportDefinition productDefinition)
{
Func <PartLifetimeContext <T> > creator = CreatePartLifetimeContextCreator <T>(productImport, sourceProvider, productDefinition);
return(new PartCreator <T>(creator));
}
public Export CreateMatchingExport(ExportDefinition exportDefinition, ExportProvider sourceProvider)
{
return(new Export(
CreateMatchingExportDefinition(exportDefinition),
() => CreatePartCreator(ExportedValueType, MetadataViewType, ProductImport, sourceProvider, exportDefinition)));
}
static object CreatePartCreator(Type createdType, Type metadataViewType, ContractBasedImportDefinition productImport, ExportProvider sourceProvider, ExportDefinition productDefinition)
{
if (metadataViewType == null)
{
return(CreatePartCreatorMethod.MakeGenericMethod(createdType).Invoke(null, new object[] { productImport, sourceProvider, productDefinition }));
}
else
{
return(CreatePartCreatorWithMetadataMethod.MakeGenericMethod(createdType, metadataViewType).Invoke(null, new object[] { productImport, sourceProvider, productDefinition }));
}
}
public void Constructor2_NullAsMetadataArgument_ShouldSetMetadataPropertyToEmptyDictionary()
{
var definition = new ExportDefinition("Contract", (IDictionary <string, object>)null);;
EnumerableAssert.IsEmpty(definition.Metadata);
}
protected virtual bool IsMatch(ExportDefinition exportDefinition)
{
return(true);
}
public override object GetExportedValue(ExportDefinition definition)
{
return(new CustomComposablePartProxy(Definition.ExportedInterface).GetTransparentProxy());
}
public static CompositionError CreateCannotGetExportedValue(ComposablePart part, ExportDefinition definition, Exception innerException)
{
if (part == null)
{
throw new ArgumentNullException(nameof(part));
}
if (definition == null)
{
throw new ArgumentNullException(nameof(definition));
}
if (innerException == null)
{
throw new ArgumentNullException(nameof(innerException));
}
ICompositionElement element = definition.ToElement();
return(CompositionError.Create(
CompositionErrorId.ImportEngine_PartCannotGetExportedValue,
element,
innerException,
SR.ImportEngine_PartCannotGetExportedValue,
element.DisplayName,
part.ToElement().DisplayName));
}
static Func <PartLifetimeContext <T> > CreatePartLifetimeContextCreator <T>(ImportDefinition productImport, ExportProvider sourceProvider, ExportDefinition productDefinition)
{
Func <PartLifetimeContext <T> > creator = () =>
{
var product = sourceProvider.GetExports(productImport).Single(e => e.Definition == productDefinition);
return(new PartLifetimeContext <T>((T)(product.Value), () =>
{
if (product is IDisposable)
{
((IDisposable)product).Dispose();
}
}));
};
return(creator);
}
private static ComposablePartDefinition CreatePartDefinition(IEnumerable <ImportDefinition> ctorImports, ExportDefinition contractExport, Type type)
{
ComposablePartDefinition originalPartDefinition = AttributedModelServices.CreatePartDefinition(type, null);
if (originalPartDefinition == null)
{
throw new InvalidOperationException();
}
IList <ImportDefinition> imports = originalPartDefinition.ImportDefinitions
.Where(idef => !ReflectionModelServices.IsImportingParameter(idef))
.Concat(ctorImports)
.ToList();
IList <ExportDefinition> exports = originalPartDefinition.ExportDefinitions
.Append(contractExport)
.ToList();
IDictionary <string, object> metadata = originalPartDefinition.Metadata;
return(CreatePartDefinition(type, imports, exports, metadata));
}
public ExportDefinition CreateMatchingExportDefinition(ExportDefinition productExportDefinition)
{
return(new ExportDefinition(ContractName, GetPartCreatorExportMetadata(productExportDefinition.Metadata)));
}
internal static bool IsProductConstraintSatisfiedBy(ImportDefinition productImportDefinition, ExportDefinition exportDefinition)
{
object productValue = null;
if (exportDefinition.Metadata.TryGetValue(CompositionConstants.ProductDefinitionMetadataName, out productValue))
{
ExportDefinition productDefinition = productValue as ExportDefinition;
if (productDefinition != null)
{
return(productImportDefinition.IsConstraintSatisfiedBy(productDefinition));
}
}
return(false);
}
static bool IsSharedInstance(ExportDefinition export)
{
return(IsSharedInstance(export.Metadata));
}
public static CatalogExport CreateExport(CatalogExportProvider catalogExportProvider,
ComposablePartDefinition partDefinition, ExportDefinition definition, CreationPolicy importCreationPolicy)
{
CreationPolicy partPolicy = partDefinition.Metadata.GetValue <CreationPolicy>(CompositionConstants.PartCreationPolicyMetadataName);
bool isSharedPart = ShouldUseSharedPart(partPolicy, importCreationPolicy);
if (isSharedPart)
{
return(new CatalogExport(catalogExportProvider, partDefinition, definition));
}
else
{
return(new NonSharedCatalogExport(catalogExportProvider, partDefinition, definition));
}
}
private IQueryable <ComposablePartDefinition> GetPartDefinitions(ExportDefinition definition)
{
var partDefinition = PartDefinitionFactory.Create(null, () => null, Enumerable.Empty <ImportDefinition>(), new ExportDefinition[] { definition });
return(new ComposablePartDefinition[] { partDefinition }.AsQueryable());
}
static IEnumerable <Service> DefaultExposedServicesMapper(ExportDefinition ed)
{
yield return(MapService(ed));
}
private bool MatchesContract(ExportDefinition e, Type serviceType)
{
return(e.Metadata["ExportTypeIdentity"].ToString() == serviceType.FullName);
}
public static CompositionError CreateCannotGetExportedValue(ComposablePart part, ExportDefinition definition, Exception innerException)
{
Assumes.NotNull(part, definition, innerException);
ICompositionElement element = definition.ToElement();
return(CompositionError.Create(
CompositionErrorId.ImportEngine_PartCannotGetExportedValue,
element,
innerException,
SR.ImportEngine_PartCannotGetExportedValue,
element.DisplayName,
part.ToElement().DisplayName));
}
internal ScopeFactoryExport(ScopeManager scopeManager, CompositionScopeDefinition catalog, ComposablePartDefinition partDefinition, ExportDefinition exportDefinition) :
base(partDefinition, exportDefinition)
{
_scopeManager = scopeManager;
_catalog = catalog;
}
private Export CreateScopeExport(CompositionScopeDefinition childCatalog, ComposablePartDefinition partDefinition, ExportDefinition exportDefinition)
{
return(new ScopeFactoryExport(this, childCatalog, partDefinition, exportDefinition));
}
public static ICompositionElement ToElement(this ExportDefinition definition)
{
return(ToElementCore(definition));
}
private Export CreateExport(ComposablePart part, ExportDefinition export)
{
return(new Export(export, () => GetExportedValue(part, export)));
}
public static ComposableCatalog WithDocumentTextDifferencingService(this ComposableCatalog catalog)
{
var assemblyQualifiedServiceTypeName = "Microsoft.CodeAnalysis.IDocumentTextDifferencingService, " + typeof(Workspace).GetTypeInfo().Assembly.GetName().ToString();
// Check to see if IDocumentTextDifferencingService is exported
foreach (var part in catalog.Parts)
{
foreach (var pair in part.ExportDefinitions)
{
var exportDefinition = pair.Value;
if (exportDefinition.ContractName != "Microsoft.CodeAnalysis.Host.IWorkspaceService")
{
continue;
}
if (!exportDefinition.Metadata.TryGetValue("ServiceType", out var value) ||
!(value is string serviceType))
{
continue;
}
if (serviceType != assemblyQualifiedServiceTypeName)
{
continue;
}
// The service is exported by default
return(catalog);
}
}
// If IDocumentTextDifferencingService is not exported by default, export it manually
var manualExportDefinition = new ExportDefinition(
typeof(IWorkspaceService).FullName,
metadata: new Dictionary <string, object?>
{
{ "ExportTypeIdentity", typeof(IWorkspaceService).FullName },
{ nameof(ExportWorkspaceServiceAttribute.ServiceType), assemblyQualifiedServiceTypeName },
{ nameof(ExportWorkspaceServiceAttribute.Layer), ServiceLayer.Default },
{ typeof(CreationPolicy).FullName, CreationPolicy.Shared },
{ "ContractType", typeof(IWorkspaceService) },
{ "ContractName", null },
});
var serviceImplType = typeof(Workspace).GetTypeInfo().Assembly.GetType("Microsoft.CodeAnalysis.DefaultDocumentTextDifferencingService");
return(catalog.AddPart(new ComposablePartDefinition(
TypeRef.Get(serviceImplType, Resolver.DefaultInstance),
new Dictionary <string, object?> {
{ "SharingBoundary", null }
},
new[] { manualExportDefinition },
new Dictionary <MemberRef, IReadOnlyCollection <ExportDefinition> >(),
Enumerable.Empty <ImportDefinitionBinding>(),
sharingBoundary: string.Empty,
default(MethodRef),
MethodRef.Get(serviceImplType.GetConstructors(BindingFlags.Instance | BindingFlags.Public).First(), Resolver.DefaultInstance),
new List <ImportDefinitionBinding>(),
CreationPolicy.Shared,
new[] { typeof(Workspace).GetTypeInfo().Assembly.GetName() },
isSharingBoundaryInferred: false)));
}
