private void SetImport(ImportingItem item, Export[] exports)
{
object value = item.CastExportsToImportType(exports);
this._invokeImportsSatisfied = true;
this._importValues[item.Definition] = value;
}
private void SetExportedValueForImport(ImportingItem import, ImportDefinition definition, object value)
{
ImportingMember importMember = (ImportingMember)import;
object instance = this.GetInstanceActivatingIfNeeded();
importMember.SetExportedValue(instance, value);
}
private void SetImport(ImportingItem item, Export[] exports)
{
object?value = item.CastExportsToImportType(exports);
lock (_lock)
{
_invokeImportsSatisfied = true;
ImportValues[item.Definition] = value;
}
}
public override void SetImport(ImportDefinition definition, IEnumerable <Export> exports)
{
this.RequiresRunning();
Requires.NotNull(definition, "definition");
Requires.NotNull(exports, "exports");;
ImportingItem item = GetImportingItemFromDefinition(definition);
if (item == null)
{
throw ExceptionBuilder.CreateImportDefinitionNotOnThisComposablePart("definition");
}
EnsureSettable(definition);
// Avoid walking over exports many times
Export[] exportsAsArray = exports.AsArray();
EnsureCardinality(definition, exportsAsArray);
SetImport(item, exportsAsArray);
}
private void UseImportedValues <TImportDefinition>(IEnumerable <TImportDefinition> definitions, Action <ImportingItem, TImportDefinition, object> useImportValue, bool errorIfMissing)
where TImportDefinition : ImportDefinition
{
var result = CompositionResult.SucceededResult;
foreach (var definition in definitions)
{
ImportingItem import = GetImportingItemFromDefinition(definition);
object value;
if (!TryGetImportValue(definition, out value))
{
if (!errorIfMissing)
{
continue;
}
if (definition.Cardinality == ImportCardinality.ExactlyOne)
{
var error = CompositionError.Create(
CompositionErrorId.ImportNotSetOnPart,
Strings.ImportNotSetOnPart,
this.Definition.GetPartType().FullName,
definition.ToString());
result = result.MergeError(error);
continue;
}
else
{
value = import.CastExportsToImportType(new Export[0]);
}
}
useImportValue(import, definition, value);
}
result.ThrowOnErrors();
}
