// internal for testing internal static IReadOnlyDictionary <AnonymousTypeKey, AnonymousTypeValue> GetAnonymousTypeMapFromMetadata(MetadataReader reader, MetadataDecoder metadataDecoder) { var result = new Dictionary <AnonymousTypeKey, AnonymousTypeValue>(); foreach (var handle in reader.TypeDefinitions) { var def = reader.GetTypeDefinition(handle); if (!def.Namespace.IsNil) { continue; } if (!reader.StringComparer.StartsWith(def.Name, GeneratedNames.AnonymousNamePrefix)) { continue; } var metadataName = reader.GetString(def.Name); short arity; var name = MetadataHelpers.InferTypeArityAndUnmangleMetadataName(metadataName, out arity); int index; if (GeneratedNames.TryParseAnonymousTypeTemplateName(name, out index)) { var builder = ArrayBuilder <AnonymousTypeKeyField> .GetInstance(); if (TryGetAnonymousTypeKey(reader, def, builder)) { var type = (NamedTypeSymbol)metadataDecoder.GetTypeOfToken(handle); var key = new AnonymousTypeKey(builder.ToImmutable()); var value = new AnonymousTypeValue(name, index, type.GetCciAdapter()); result.Add(key, value); } builder.Free(); } } return(result); }