remove unneeded swift flags

Use `dynamicCast()` to cast `fetchedObjects` to `[T]?` without checking the type.

CoreStore.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
     s.name = "CoreStore"
-    s.version = "3.0.2"
+    s.version = "3.1.1"
     s.license = "MIT"
     s.summary = "Unleashing the real power of Core Data with the elegance and safety of Swift"
     s.homepage = "https://github.com/JohnEstropia/CoreStore"
@@ -16,7 +16,5 @@ Pod::Spec.new do |s|
     s.public_header_files = "Sources/**/*.h"
     s.frameworks = "Foundation", "CoreData"
     s.requires_arc = true
-    s.pod_target_xcconfig = { 'OTHER_SWIFT_FLAGS[config=Debug]' => '-D USE_FRAMEWORKS -D DEBUG',
-                              'OTHER_SWIFT_FLAGS[config=Release]' => '-D USE_FRAMEWORKS',
-                              'GCC_PREPROCESSOR_DEFINITIONS' => 'USE_FRAMEWORKS=1' }
+    s.pod_target_xcconfig = { 'OTHER_SWIFT_FLAGS[config=Debug]' => '-D DEBUG' }
 end

CoreStore.xcodeproj/project.pbxproj

@@ -80,10 +80,10 @@
 		B50392FA1C47963F009900CA /* NSManagedObject+Transaction.swift in Sources */ = {isa = PBXBuildFile; fileRef = B50392F81C478FF3009900CA /* NSManagedObject+Transaction.swift */; };
 		B50392FB1C479640009900CA /* NSManagedObject+Transaction.swift in Sources */ = {isa = PBXBuildFile; fileRef = B50392F81C478FF3009900CA /* NSManagedObject+Transaction.swift */; };
 		B504D0D61B02362500B2BBB1 /* CoreStore+Setup.swift in Sources */ = {isa = PBXBuildFile; fileRef = B504D0D51B02362500B2BBB1 /* CoreStore+Setup.swift */; };
-		B50956B81E30B810003DF913 /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B50956B71E30B810003DF913 /* CoreDataNativeType.swift */; };
-		B50956B91E30B810003DF913 /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B50956B71E30B810003DF913 /* CoreDataNativeType.swift */; };
-		B50956BA1E30B810003DF913 /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B50956B71E30B810003DF913 /* CoreDataNativeType.swift */; };
-		B50956BB1E30B810003DF913 /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B50956B71E30B810003DF913 /* CoreDataNativeType.swift */; };
+		B509C7F41E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B509C7F31E54511B0061C547 /* CoreStoreImportableAttributeType.swift */; };
+		B509C7F51E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B509C7F31E54511B0061C547 /* CoreStoreImportableAttributeType.swift */; };
+		B509C7F61E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B509C7F31E54511B0061C547 /* CoreStoreImportableAttributeType.swift */; };
+		B509C7F71E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B509C7F31E54511B0061C547 /* CoreStoreImportableAttributeType.swift */; };
 		B51BE06A1B47FC4B0069F532 /* NSManagedObjectModel+Setup.swift in Sources */ = {isa = PBXBuildFile; fileRef = B51BE0691B47FC4B0069F532 /* NSManagedObjectModel+Setup.swift */; };
 		B51FE5AB1CD4D00300E54258 /* CoreStore+CustomDebugStringConvertible.swift in Sources */ = {isa = PBXBuildFile; fileRef = B51FE5AA1CD4D00300E54258 /* CoreStore+CustomDebugStringConvertible.swift */; };
 		B51FE5AD1CD4D00300E54258 /* CoreStore+CustomDebugStringConvertible.swift in Sources */ = {isa = PBXBuildFile; fileRef = B51FE5AA1CD4D00300E54258 /* CoreStore+CustomDebugStringConvertible.swift */; };
@@ -263,6 +263,14 @@
 		B5489F501CF603D5008B4978 /* FromTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5489F4F1CF603D5008B4978 /* FromTests.swift */; };
 		B5489F511CF603D5008B4978 /* FromTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5489F4F1CF603D5008B4978 /* FromTests.swift */; };
 		B5489F521CF603D5008B4978 /* FromTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5489F4F1CF603D5008B4978 /* FromTests.swift */; };
+		B549F65E1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F65D1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift */; };
+		B549F65F1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F65D1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift */; };
+		B549F6601E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F65D1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift */; };
+		B549F6611E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F65D1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift */; };
+		B549F6731E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F6721E56A92800FBAB2D /* CoreDataNativeType.swift */; };
+		B549F6741E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F6721E56A92800FBAB2D /* CoreDataNativeType.swift */; };
+		B549F6751E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F6721E56A92800FBAB2D /* CoreDataNativeType.swift */; };
+		B549F6761E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */ = {isa = PBXBuildFile; fileRef = B549F6721E56A92800FBAB2D /* CoreDataNativeType.swift */; };
 		B54A6A551BA15F2A007870FD /* FetchedResultsControllerDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = B54A6A541BA15F2A007870FD /* FetchedResultsControllerDelegate.swift */; };
 		B5519A401CA1B17B002BEF78 /* ErrorTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5519A3F1CA1B17B002BEF78 /* ErrorTests.swift */; };
 		B5519A411CA1B17B002BEF78 /* ErrorTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = B5519A3F1CA1B17B002BEF78 /* ErrorTests.swift */; };
@@ -604,7 +612,7 @@
 		B501FDE61CA8D20500BE22EF /* CSListObserver.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSListObserver.swift; sourceTree = "<group>"; };
 		B50392F81C478FF3009900CA /* NSManagedObject+Transaction.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NSManagedObject+Transaction.swift"; sourceTree = "<group>"; };
 		B504D0D51B02362500B2BBB1 /* CoreStore+Setup.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "CoreStore+Setup.swift"; sourceTree = "<group>"; };
-		B50956B71E30B810003DF913 /* CoreDataNativeType.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CoreDataNativeType.swift; sourceTree = "<group>"; };
+		B509C7F31E54511B0061C547 /* CoreStoreImportableAttributeType.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CoreStoreImportableAttributeType.swift; sourceTree = "<group>"; };
 		B51BE0691B47FC4B0069F532 /* NSManagedObjectModel+Setup.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NSManagedObjectModel+Setup.swift"; sourceTree = "<group>"; };
 		B51FE5AA1CD4D00300E54258 /* CoreStore+CustomDebugStringConvertible.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "CoreStore+CustomDebugStringConvertible.swift"; sourceTree = "<group>"; };
 		B5202CF91C04688100DED140 /* NSFetchedResultsController+Convenience.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = "NSFetchedResultsController+Convenience.swift"; sourceTree = "<group>"; };
@@ -641,6 +649,8 @@
 		B5489F451CF5F017008B4978 /* TransactionTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TransactionTests.swift; sourceTree = "<group>"; };
 		B5489F4B1CF5F743008B4978 /* BaseTestCase.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BaseTestCase.swift; sourceTree = "<group>"; };
 		B5489F4F1CF603D5008B4978 /* FromTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FromTests.swift; sourceTree = "<group>"; };
+		B549F65D1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CoreStoreQueryableAttributeType.swift; sourceTree = "<group>"; };
+		B549F6721E56A92800FBAB2D /* CoreDataNativeType.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CoreDataNativeType.swift; sourceTree = "<group>"; };
 		B54A6A541BA15F2A007870FD /* FetchedResultsControllerDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = FetchedResultsControllerDelegate.swift; sourceTree = "<group>"; };
 		B5519A3F1CA1B17B002BEF78 /* ErrorTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ErrorTests.swift; sourceTree = "<group>"; };
 		B5519A491CA1F4FB002BEF78 /* CSError.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSError.swift; sourceTree = "<group>"; };
@@ -1025,7 +1035,7 @@
 				B5A261201B64BFDB006EB6D3 /* MigrationType.swift */,
 				B56965231B356B820075EE4A /* MigrationResult.swift */,
 			);
-			path = Migrating;
+			name = Migrating;
 			sourceTree = "<group>";
 		};
 		B5A5F26B1CAFF8D0004AB9AF /* Swift */ = {
@@ -1033,6 +1043,7 @@
 			children = (
 				2F291E2619C6D3CF007AF63F /* CoreStore.swift */,
 				B5D1E22B19FA9FBC003B2874 /* CoreStoreError.swift */,
+				B549F6721E56A92800FBAB2D /* CoreDataNativeType.swift */,
 				B5E84EDA1AFF84500064E85B /* Setup */,
 				B5E84EE21AFF84610064E85B /* Logging */,
 				B5E84EE91AFF846E0064E85B /* Transactions */,
@@ -1062,7 +1073,7 @@
 				B53FBA101CAB607000F0D40A /* Convenience */,
 				B5E222211CA4DE5700BA2E95 /* Internal */,
 			);
-			path = ObjectiveC;
+			name = ObjectiveC;
 			sourceTree = "<group>";
 		};
 		B5E1B5A61CAA49CE007FD580 /* Migrating */ = {
@@ -1103,9 +1114,9 @@
 				B5F1DA8C1B9AA97D007C5CBB /* ImportableObject.swift */,
 				B5F1DA8F1B9AA991007C5CBB /* ImportableUniqueObject.swift */,
 				B5E834B81B76311F001D3D50 /* BaseDataTransaction+Importing.swift */,
-				B50956B71E30B810003DF913 /* CoreDataNativeType.swift */,
+				B509C7F31E54511B0061C547 /* CoreStoreImportableAttributeType.swift */,
 			);
-			path = Importing;
+			name = Importing;
 			sourceTree = "<group>";
 		};
 		B5E84EDA1AFF84500064E85B /* Setup */ = {
@@ -1115,7 +1126,7 @@
 				B5E84EDB1AFF84500064E85B /* DataStack.swift */,
 				B5FE4DA01C84818B00FA6A91 /* StorageInterfaces */,
 			);
-			path = Setup;
+			name = Setup;
 			sourceTree = "<group>";
 		};
 		B5E84EE21AFF84610064E85B /* Logging */ = {
@@ -1126,7 +1137,7 @@
 				B5E84EE51AFF84610064E85B /* CoreStoreLogger.swift */,
 				B51FE5AA1CD4D00300E54258 /* CoreStore+CustomDebugStringConvertible.swift */,
 			);
-			path = Logging;
+			name = Logging;
 			sourceTree = "<group>";
 		};
 		B5E84EE91AFF846E0064E85B /* Transactions */ = {
@@ -1142,7 +1153,7 @@
 				B50392F81C478FF3009900CA /* NSManagedObject+Transaction.swift */,
 				B5E84EF21AFF846E0064E85B /* SaveResult.swift */,
 			);
-			path = Transactions;
+			name = Transactions;
 			sourceTree = "<group>";
 		};
 		B5E84EFD1AFF847B0064E85B /* Fetching and Querying */ = {
@@ -1153,10 +1164,11 @@
 				B5E84F071AFF847B0064E85B /* CoreStore+Querying.swift */,
 				B596BBB51DD5BC67001DCDD9 /* FetchableSource.swift */,
 				B596BBBA1DD5C39F001DCDD9 /* QueryableSource.swift */,
+				B549F65D1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift */,
 				B5E84F0A1AFF847B0064E85B /* Protocol Clauses */,
 				B5E84EFF1AFF847B0064E85B /* Concrete Clauses */,
 			);
-			path = "Fetching and Querying";
+			name = "Fetching and Querying";
 			sourceTree = "<group>";
 		};
 		B5E84EFF1AFF847B0064E85B /* Concrete Clauses */ = {
@@ -1169,7 +1181,7 @@
 				B5E84F021AFF847B0064E85B /* GroupBy.swift */,
 				B5E84F001AFF847B0064E85B /* Tweak.swift */,
 			);
-			path = "Concrete Clauses";
+			name = "Concrete Clauses";
 			sourceTree = "<group>";
 		};
 		B5E84F0A1AFF847B0064E85B /* Protocol Clauses */ = {
@@ -1177,7 +1189,7 @@
 			children = (
 				B5E84F401AFF8CCD0064E85B /* ClauseTypes.swift */,
 			);
-			path = "Protocol Clauses";
+			name = "Protocol Clauses";
 			sourceTree = "<group>";
 		};
 		B5E84F191AFF84860064E85B /* Observing */ = {
@@ -1192,7 +1204,7 @@
 				B5E84F1D1AFF84860064E85B /* ListMonitor.swift */,
 				B5E84F1E1AFF84860064E85B /* ListObserver.swift */,
 			);
-			path = Observing;
+			name = Observing;
 			sourceTree = "<group>";
 		};
 		B5E84F261AFF84920064E85B /* Convenience */ = {
@@ -1202,7 +1214,7 @@
 				B5FAD6A81B50A4B300714891 /* Progress+Convenience.swift */,
 				B5202CF91C04688100DED140 /* NSFetchedResultsController+Convenience.swift */,
 			);
-			path = Convenience;
+			name = Convenience;
 			sourceTree = "<group>";
 		};
 		B5E84F291AFF849C0064E85B /* Internal */ = {
@@ -1225,7 +1237,7 @@
 				B59AFF401C6593E400C0ABE2 /* NSPersistentStoreCoordinator+Setup.swift */,
 				B5E84F2D1AFF849C0064E85B /* WeakObject.swift */,
 			);
-			path = Internal;
+			name = Internal;
 			sourceTree = "<group>";
 		};
 		B5ECDBEA1CA6BEAC00C7F112 /* Protocol Clauses */ = {
@@ -1259,7 +1271,7 @@
 				B59FA0AD1CCBAC95007C9BCA /* ICloudStore.swift */,
 				B5677D3C1CD3B1E400322BFC /* ICloudStoreObserver.swift */,
 			);
-			path = StorageInterfaces;
+			name = StorageInterfaces;
 			sourceTree = "<group>";
 		};
 /* End PBXGroup section */
@@ -1580,6 +1592,8 @@
 				B56007161B4018AB00A9A8F9 /* MigrationChain.swift in Sources */,
 				B5E1B59D1CAA2568007FD580 /* CSDataStack+Observing.swift in Sources */,
 				B5ECDC231CA81A3900C7F112 /* CSCoreStore+Querying.swift in Sources */,
+				B549F6731E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */,
+				B509C7F41E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */,
 				B5E84F0E1AFF847B0064E85B /* Tweak.swift in Sources */,
 				B5E1B5931CAA0C15007FD580 /* CSObjectMonitor.swift in Sources */,
 				B5ECDC291CA81CC700C7F112 /* CSDataStack+Transaction.swift in Sources */,
@@ -1606,7 +1620,6 @@
 				B5F1DA8D1B9AA97D007C5CBB /* ImportableObject.swift in Sources */,
 				B56965241B356B820075EE4A /* MigrationResult.swift in Sources */,
 				B5FE4DAC1C85D44E00FA6A91 /* SQLiteStore.swift in Sources */,
-				B50956B81E30B810003DF913 /* CoreDataNativeType.swift in Sources */,
 				B501FDE71CA8D20500BE22EF /* CSListObserver.swift in Sources */,
 				B501FDE21CA8D1F500BE22EF /* CSListMonitor.swift in Sources */,
 				2F291E2719C6D3CF007AF63F /* CoreStore.swift in Sources */,
@@ -1652,6 +1665,7 @@
 				B5E84F301AFF849C0064E85B /* NSManagedObjectContext+CoreStore.swift in Sources */,
 				B546F9691C9AF26D00D5AC55 /* CSInMemoryStore.swift in Sources */,
 				B53FBA1E1CAB63FA00F0D40A /* NSFetchedResultsController+ObjectiveC.swift in Sources */,
+				B549F65E1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */,
 				B5E84F211AFF84860064E85B /* CoreStore+Observing.swift in Sources */,
 				B559CD431CAA8B6300E4D58B /* CSSetupResult.swift in Sources */,
 				B5FE4DA71C84FB4400FA6A91 /* InMemoryStore.swift in Sources */,
@@ -1734,6 +1748,8 @@
 				B5D3F6461C887C0A00C7492A /* LegacySQLiteStore.swift in Sources */,
 				B5E1B59F1CAA2568007FD580 /* CSDataStack+Observing.swift in Sources */,
 				B5ECDC251CA81A3900C7F112 /* CSCoreStore+Querying.swift in Sources */,
+				B549F6741E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */,
+				B509C7F51E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */,
 				82BA18B31C4BBD3900A0916E /* ImportableUniqueObject.swift in Sources */,
 				B5E1B5951CAA0C15007FD580 /* CSObjectMonitor.swift in Sources */,
 				B5ECDC2B1CA81CC700C7F112 /* CSDataStack+Transaction.swift in Sources */,
@@ -1760,7 +1776,6 @@
 				82BA18B01C4BBD3100A0916E /* NSManagedObject+Transaction.swift in Sources */,
 				82BA18D41C4BBD7100A0916E /* NSManagedObjectContext+Querying.swift in Sources */,
 				82BA18D51C4BBD7100A0916E /* NSManagedObjectContext+Setup.swift in Sources */,
-				B50956B91E30B810003DF913 /* CoreDataNativeType.swift in Sources */,
 				B501FDE91CA8D20500BE22EF /* CSListObserver.swift in Sources */,
 				B501FDE41CA8D1F500BE22EF /* CSListMonitor.swift in Sources */,
 				B5FE4DA31C8481E100FA6A91 /* StorageInterface.swift in Sources */,
@@ -1806,6 +1821,7 @@
 				B546F96A1C9AF26D00D5AC55 /* CSInMemoryStore.swift in Sources */,
 				B53FBA201CAB63FA00F0D40A /* NSFetchedResultsController+ObjectiveC.swift in Sources */,
 				82BA18A81C4BBD2900A0916E /* CoreStoreLogger.swift in Sources */,
+				B549F65F1E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */,
 				B559CD451CAA8B6300E4D58B /* CSSetupResult.swift in Sources */,
 				82BA18B81C4BBD4200A0916E /* ClauseTypes.swift in Sources */,
 				B5ECDBEE1CA6BF2000C7F112 /* CSFrom.swift in Sources */,
@@ -1888,6 +1904,8 @@
 				B5220E241D13085E009BC71E /* NSFetchedResultsController+Convenience.swift in Sources */,
 				B559CD471CAA8B6300E4D58B /* CSSetupResult.swift in Sources */,
 				B5ECDBF01CA6BF2000C7F112 /* CSFrom.swift in Sources */,
+				B549F6761E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */,
+				B509C7F71E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */,
 				B5220E1F1D130810009BC71E /* CSListObserver.swift in Sources */,
 				B52DD1941BE1F92500949AFE /* CoreStore.swift in Sources */,
 				B52DD1A61BE1F92F00949AFE /* BaseDataTransaction+Importing.swift in Sources */,
@@ -1914,7 +1932,6 @@
 				B5220E231D130826009BC71E /* NSFetchedResultsController+ObjectiveC.swift in Sources */,
 				B52DD19D1BE1F92C00949AFE /* BaseDataTransaction.swift in Sources */,
 				B5220E131D1305ED009BC71E /* SectionBy.swift in Sources */,
-				B50956BB1E30B810003DF913 /* CoreDataNativeType.swift in Sources */,
 				B559CD4D1CAA8C6D00E4D58B /* CSStorageInterface.swift in Sources */,
 				B5ECDBE91CA6BEA300C7F112 /* CSClauseTypes.swift in Sources */,
 				B52DD1B81BE1F94000949AFE /* DataStack+Migration.swift in Sources */,
@@ -1960,6 +1977,7 @@
 				B52DD1BB1BE1F94000949AFE /* MigrationType.swift in Sources */,
 				B52DD1C91BE1F94600949AFE /* NSManagedObjectContext+Transaction.swift in Sources */,
 				B5220E151D130663009BC71E /* CoreStore+Observing.swift in Sources */,
+				B549F6611E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */,
 				B52DD19B1BE1F92800949AFE /* CoreStoreLogger.swift in Sources */,
 				B52DD1991BE1F92800949AFE /* DefaultLogger.swift in Sources */,
 				B5220E201D130813009BC71E /* CSObjectMonitor.swift in Sources */,
@@ -2042,6 +2060,8 @@
 				B5E1B5A01CAA2568007FD580 /* CSDataStack+Observing.swift in Sources */,
 				B5ECDC261CA81A3900C7F112 /* CSCoreStore+Querying.swift in Sources */,
 				B563217F1BD65216006C9394 /* CoreStore.swift in Sources */,
+				B549F6751E56A92800FBAB2D /* CoreDataNativeType.swift in Sources */,
+				B509C7F61E54511B0061C547 /* CoreStoreImportableAttributeType.swift in Sources */,
 				B5E1B5961CAA0C15007FD580 /* CSObjectMonitor.swift in Sources */,
 				B5ECDC2C1CA81CC700C7F112 /* CSDataStack+Transaction.swift in Sources */,
 				B56321911BD65216006C9394 /* BaseDataTransaction+Importing.swift in Sources */,
@@ -2068,7 +2088,6 @@
 				B5FE4DA41C8481E100FA6A91 /* StorageInterface.swift in Sources */,
 				B56321B31BD6521C006C9394 /* NSManagedObjectContext+Setup.swift in Sources */,
 				B501FDEA1CA8D20500BE22EF /* CSListObserver.swift in Sources */,
-				B50956BA1E30B810003DF913 /* CoreDataNativeType.swift in Sources */,
 				B501FDE51CA8D1F500BE22EF /* CSListMonitor.swift in Sources */,
 				B5ECDC141CA816E500C7F112 /* CSTweak.swift in Sources */,
 				B56321AE1BD6521C006C9394 /* NotificationObserver.swift in Sources */,
@@ -2114,6 +2133,7 @@
 				B546F96B1C9AF26D00D5AC55 /* CSInMemoryStore.swift in Sources */,
 				B53FBA211CAB63FA00F0D40A /* NSFetchedResultsController+ObjectiveC.swift in Sources */,
 				B563218B1BD65216006C9394 /* UnsafeDataTransaction.swift in Sources */,
+				B549F6601E569C7400FBAB2D /* CoreStoreQueryableAttributeType.swift in Sources */,
 				B559CD461CAA8B6300E4D58B /* CSSetupResult.swift in Sources */,
 				B56321A61BD65216006C9394 /* MigrationType.swift in Sources */,
 				B5ECDBEF1CA6BF2000C7F112 /* CSFrom.swift in Sources */,
@@ -2181,9 +2201,8 @@
 				GCC_NO_COMMON_BLOCKS = YES;
 				GCC_OPTIMIZATION_LEVEL = 0;
 				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
 					"$(inherited)",
-					"USE_FRAMEWORKS=1",
+					"DEBUG=1",
 				);
 				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
@@ -2197,7 +2216,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
-				OTHER_SWIFT_FLAGS = "-D USE_FRAMEWORKS -D DEBUG";
+				OTHER_SWIFT_FLAGS = "-D DEBUG";
 				PRODUCT_BUNDLE_IDENTIFIER = com.johnestropia.CoreStore;
 				PRODUCT_NAME = CoreStore;
 				SDKROOT = iphoneos;
@@ -2238,7 +2257,7 @@
 				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_NO_COMMON_BLOCKS = YES;
-				GCC_PREPROCESSOR_DEFINITIONS = "USE_FRAMEWORKS=1";
+				GCC_PREPROCESSOR_DEFINITIONS = "$(inherited)";
 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
 				GCC_WARN_UNDECLARED_SELECTOR = YES;
@@ -2249,7 +2268,6 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				MACOSX_DEPLOYMENT_TARGET = 10.10;
 				MTL_ENABLE_DEBUG_INFO = NO;
-				OTHER_SWIFT_FLAGS = "-D USE_FRAMEWORKS";
 				PRODUCT_BUNDLE_IDENTIFIER = com.johnestropia.CoreStore;
 				PRODUCT_NAME = CoreStore;
 				SDKROOT = iphoneos;

CoreStoreDemo/CoreStoreDemo.xcodeproj/project.pbxproj

@@ -378,8 +378,10 @@
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
@@ -423,8 +425,10 @@
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";

CoreStoreTests/FetchTests.swift

@@ -868,6 +868,24 @@ final class FetchTests: BaseTestDataTestCase {
                     }
                     XCTAssertNil(objects)
                     
+                    let objectIDs = self.expectLogger([.logWarning]) {
+                        
+                        stack.fetchObjectIDs(from, fetchClauses)
+                    }
+                    XCTAssertNil(objectIDs)
+                }
+                do {
+                    
+                    let fetchClauses: [FetchClause] = [
+                        Where(#keyPath(TestEntity1.testNumber), isEqualTo: nil),
+                        OrderBy(.descending(#keyPath(TestEntity1.testEntityID)))
+                    ]
+                    let objects = self.expectLogger([.logWarning]) {
+                        
+                        stack.fetchAll(from, fetchClauses)
+                    }
+                    XCTAssertNil(objects)
+                    
                     let objectIDs = self.expectLogger([.logWarning]) {
                         
                         stack.fetchObjectIDs(from, fetchClauses)
@@ -1445,6 +1463,18 @@ final class FetchTests: BaseTestDataTestCase {
                     }
                     XCTAssertNil(count)
                 }
+                do {
+                    
+                    let count = self.expectLogger([.logWarning]) {
+                        
+                        stack.fetchCount(
+                            from,
+                            Where(#keyPath(TestEntity1.testNumber), isEqualTo: nil),
+                            OrderBy(.descending(#keyPath(TestEntity1.testEntityID)))
+                        )
+                    }
+                    XCTAssertNil(count)
+                }
             }
         }
     }
@@ -1592,6 +1622,18 @@ final class FetchTests: BaseTestDataTestCase {
                     }
                     XCTAssertNil(count)
                 }
+                do {
+                    
+                    let count = self.expectLogger([.logWarning]) {
+                        
+                        stack.fetchCount(
+                            from,
+                            Where(#keyPath(TestEntity1.testNumber), isEqualTo: nil),
+                            OrderBy(.descending(#keyPath(TestEntity1.testEntityID)))
+                        )
+                    }
+                    XCTAssertNil(count)
+                }
             }
         }
     }
@@ -2361,6 +2403,24 @@ final class FetchTests: BaseTestDataTestCase {
                     }
                     XCTAssertNil(objects)
                     
+                    let objectIDs = self.expectLogger([.logWarning]) {
+                        
+                        transaction.fetchObjectIDs(from, fetchClauses)
+                    }
+                    XCTAssertNil(objectIDs)
+                }
+                do {
+                    
+                    let fetchClauses: [FetchClause] = [
+                        Where(#keyPath(TestEntity1.testNumber), isEqualTo: nil),
+                        OrderBy(.descending(#keyPath(TestEntity1.testEntityID)))
+                    ]
+                    let objects = self.expectLogger([.logWarning]) {
+                        
+                        transaction.fetchAll(from, fetchClauses)
+                    }
+                    XCTAssertNil(objects)
+                    
                     let objectIDs = self.expectLogger([.logWarning]) {
                         
                         transaction.fetchObjectIDs(from, fetchClauses)
@@ -2938,6 +2998,18 @@ final class FetchTests: BaseTestDataTestCase {
                     }
                     XCTAssertNil(count)
                 }
+                do {
+                    
+                    let count = self.expectLogger([.logWarning]) {
+                        
+                        transaction.fetchCount(
+                            from,
+                            Where(#keyPath(TestEntity1.testNumber), isEqualTo: nil),
+                            OrderBy(.descending(#keyPath(TestEntity1.testEntityID)))
+                        )
+                    }
+                    XCTAssertNil(count)
+                }
             }
         }
     }
@@ -3085,6 +3157,18 @@ final class FetchTests: BaseTestDataTestCase {
                     }
                     XCTAssertNil(count)
                 }
+                do {
+                    
+                    let count = self.expectLogger([.logWarning]) {
+                        
+                        transaction.fetchCount(
+                            from,
+                            Where(#keyPath(TestEntity1.testNumber), isEqualTo: nil),
+                            OrderBy(.descending(#keyPath(TestEntity1.testEntityID)))
+                        )
+                    }
+                    XCTAssertNil(count)
+                }
             }
         }
     }

CoreStoreTests/ImportTests.swift

@@ -36,40 +36,40 @@ class ImportTests: BaseTestDataTestCase {
     @objc
     dynamic func test_ThatAttributeProtocols_BehaveCorrectly() {
         
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSNumber(value: true))?.boolValue, true)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSNumber(value: Int16.max))?.int16Value, Int16.max)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSNumber(value: Int32.max))?.int32Value, Int32.max)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSNumber(value: Int64.max))?.int64Value, Int64.max)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSNumber(value: MAXFLOAT))?.floatValue, MAXFLOAT)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSNumber(value: Double(MAXFLOAT)))?.doubleValue, Double(MAXFLOAT))
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSNumber(value: true))?.boolValue, true)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSNumber(value: Int16.max))?.int16Value, Int16.max)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSNumber(value: Int32.max))?.int32Value, Int32.max)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSNumber(value: Int64.max))?.int64Value, Int64.max)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSNumber(value: MAXFLOAT))?.floatValue, MAXFLOAT)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSNumber(value: Double(MAXFLOAT)))?.doubleValue, Double(MAXFLOAT))
         
-        XCTAssertEqual(NSDecimalNumber.cs_fromNativeType(NSDecimalNumber(string: "1"))?.boolValue, true)
-        XCTAssertEqual(NSDecimalNumber.cs_fromNativeType(NSDecimalNumber(string: Int16.max.description))?.int16Value, Int16.max)
-        XCTAssertEqual(NSDecimalNumber.cs_fromNativeType(NSDecimalNumber(string: Int32.max.description))?.int32Value, Int32.max)
-        XCTAssertEqual(NSDecimalNumber.cs_fromNativeType(NSDecimalNumber(string: Int64.max.description))?.int64Value, Int64.max)
-        XCTAssertEqual(NSDecimalNumber.cs_fromNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.doubleValue, NSDecimalNumber(string: MAXFLOAT.description).doubleValue)
-        XCTAssertEqual(NSDecimalNumber.cs_fromNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.floatValue, NSDecimalNumber(string: MAXFLOAT.description).floatValue)
+        XCTAssertEqual(NSDecimalNumber.cs_fromImportableNativeType(NSDecimalNumber(string: "1"))?.boolValue, true)
+        XCTAssertEqual(NSDecimalNumber.cs_fromImportableNativeType(NSDecimalNumber(string: Int16.max.description))?.int16Value, Int16.max)
+        XCTAssertEqual(NSDecimalNumber.cs_fromImportableNativeType(NSDecimalNumber(string: Int32.max.description))?.int32Value, Int32.max)
+        XCTAssertEqual(NSDecimalNumber.cs_fromImportableNativeType(NSDecimalNumber(string: Int64.max.description))?.int64Value, Int64.max)
+        XCTAssertEqual(NSDecimalNumber.cs_fromImportableNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.doubleValue, NSDecimalNumber(string: MAXFLOAT.description).doubleValue)
+        XCTAssertEqual(NSDecimalNumber.cs_fromImportableNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.floatValue, NSDecimalNumber(string: MAXFLOAT.description).floatValue)
         
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSDecimalNumber(string: "1"))?.boolValue, true)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSDecimalNumber(string: Int16.max.description))?.int16Value, Int16.max)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSDecimalNumber(string: Int32.max.description))?.int32Value, Int32.max)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSDecimalNumber(string: Int64.max.description))?.int64Value, Int64.max)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.doubleValue, NSDecimalNumber(string: MAXFLOAT.description).doubleValue)
-        XCTAssertEqual(NSNumber.cs_fromNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.floatValue, NSDecimalNumber(string: MAXFLOAT.description).floatValue)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSDecimalNumber(string: "1"))?.boolValue, true)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSDecimalNumber(string: Int16.max.description))?.int16Value, Int16.max)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSDecimalNumber(string: Int32.max.description))?.int32Value, Int32.max)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSDecimalNumber(string: Int64.max.description))?.int64Value, Int64.max)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.doubleValue, NSDecimalNumber(string: MAXFLOAT.description).doubleValue)
+        XCTAssertEqual(NSNumber.cs_fromImportableNativeType(NSDecimalNumber(string: MAXFLOAT.description))?.floatValue, NSDecimalNumber(string: MAXFLOAT.description).floatValue)
         
-        XCTAssertNil(NSDecimalNumber.cs_fromNativeType(NSNumber(value: true)))
-        XCTAssertNil(NSDecimalNumber.cs_fromNativeType(NSNumber(value: Int16.max)))
-        XCTAssertNil(NSDecimalNumber.cs_fromNativeType(NSNumber(value: Int32.max)))
-        XCTAssertNil(NSDecimalNumber.cs_fromNativeType(NSNumber(value: Int64.max)))
-        XCTAssertNil(NSDecimalNumber.cs_fromNativeType(NSNumber(value: MAXFLOAT)))
-        XCTAssertNil(NSDecimalNumber.cs_fromNativeType(NSNumber(value: Double(MAXFLOAT))))
+        XCTAssertNil(NSDecimalNumber.cs_fromImportableNativeType(NSNumber(value: true)))
+        XCTAssertNil(NSDecimalNumber.cs_fromImportableNativeType(NSNumber(value: Int16.max)))
+        XCTAssertNil(NSDecimalNumber.cs_fromImportableNativeType(NSNumber(value: Int32.max)))
+        XCTAssertNil(NSDecimalNumber.cs_fromImportableNativeType(NSNumber(value: Int64.max)))
+        XCTAssertNil(NSDecimalNumber.cs_fromImportableNativeType(NSNumber(value: MAXFLOAT)))
+        XCTAssertNil(NSDecimalNumber.cs_fromImportableNativeType(NSNumber(value: Double(MAXFLOAT))))
         
-        XCTAssertEqual(true.cs_toNativeType(), NSNumber(value: true))
-        XCTAssertEqual(Int16.max.cs_toNativeType(), NSNumber(value: Int16.max))
-        XCTAssertEqual(Int32.max.cs_toNativeType(), NSNumber(value: Int32.max))
-        XCTAssertEqual(Int64.max.cs_toNativeType(), NSNumber(value: Int64.max))
-        XCTAssertEqual(MAXFLOAT.cs_toNativeType(), NSNumber(value: MAXFLOAT))
-        XCTAssertEqual(Double(MAXFLOAT).cs_toNativeType(), NSNumber(value: Double(MAXFLOAT)))
+        XCTAssertEqual(true.cs_toQueryableNativeType(), NSNumber(value: true))
+        XCTAssertEqual(Int16.max.cs_toQueryableNativeType(), NSNumber(value: Int16.max))
+        XCTAssertEqual(Int32.max.cs_toQueryableNativeType(), NSNumber(value: Int32.max))
+        XCTAssertEqual(Int64.max.cs_toQueryableNativeType(), NSNumber(value: Int64.max))
+        XCTAssertEqual(MAXFLOAT.cs_toQueryableNativeType(), NSNumber(value: MAXFLOAT))
+        XCTAssertEqual(Double(MAXFLOAT).cs_toQueryableNativeType(), NSNumber(value: Double(MAXFLOAT)))
     }
     
     @objc
@@ -1083,42 +1083,25 @@ extension TestEntity1: ImportableUniqueObject {
     
     // MARK: ImportableUniqueObject
     
-    typealias UniqueIDType = NSNumber
+    typealias UniqueIDType = Int64
     
     static var uniqueIDKeyPath: String {
         
         return #keyPath(TestEntity1.testEntityID)
     }
     
-    var uniqueIDValue: NSNumber {
-        
-        get {
-            
-            guard let ID = self.testEntityID else {
-                
-                XCTFail()
-                return 0
-            }
-            return ID
-        }
-        set {
-            
-            self.testEntityID = newValue
-        }
-    }
-    
     static func shouldUpdate(from source: ImportSource, in transaction: BaseDataTransaction) -> Bool {
         
         return source["skip_update"] == nil
     }
     
-    static func uniqueID(from source: ImportSource, in transaction: BaseDataTransaction) throws -> NSNumber? {
+    static func uniqueID(from source: ImportSource, in transaction: BaseDataTransaction) throws -> Int64? {
         
         if let _ = source["throw_on_id"] {
             
             throw TestIDError()
         }
-        return source[(#keyPath(TestEntity1.testEntityID))] as? NSNumber
+        return source[(#keyPath(TestEntity1.testEntityID))] as? Int64
     }
     
     func update(from source: ImportSource, in transaction: BaseDataTransaction) throws {

CoreStoreTests/ListObserverTests.swift

@@ -35,6 +35,21 @@ import CoreStore
 
 class ListObserverTests: BaseTestDataTestCase {
     
+    @objc
+    dynamic func test_ThatListObservers_CanDowncast() {
+        
+        self.prepareStack { (stack) in
+            
+            let monitor = stack.monitorSectionedList(
+                From<TestEntity1>(),
+                SectionBy(#keyPath(TestEntity1.testBoolean)),
+                OrderBy(.ascending(#keyPath(TestEntity1.testBoolean)), .ascending(#keyPath(TestEntity1.testEntityID)))
+            )
+            let downcast = monitor.downcast()
+            XCTAssertTrue(monitor == downcast)
+        }
+    }
+    
     @objc
     dynamic func test_ThatListObservers_CanReceiveInsertNotifications() {
         

CoreStoreTests/Model.xcdatamodeld/Model.xcdatamodel/contents

@@ -1,23 +1,23 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
-<model userDefinedModelVersionIdentifier="" type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="10174" systemVersion="15F34" minimumToolsVersion="Xcode 4.3">
+<model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="11759" systemVersion="16C67" minimumToolsVersion="Xcode 4.3" sourceLanguage="Objective-C" userDefinedModelVersionIdentifier="">
     <entity name="TestEntity1AAA" representedClassName="CoreStoreTests.TestEntity1" syncable="YES">
-        <attribute name="testBoolean" optional="YES" attributeType="Boolean" syncable="YES"/>
+        <attribute name="testBoolean" optional="YES" attributeType="Boolean" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testData" optional="YES" attributeType="Binary" syncable="YES"/>
-        <attribute name="testDate" optional="YES" attributeType="Date" syncable="YES"/>
+        <attribute name="testDate" optional="YES" attributeType="Date" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testDecimal" optional="YES" attributeType="Decimal" syncable="YES"/>
-        <attribute name="testEntityID" optional="YES" attributeType="Integer 64" syncable="YES"/>
+        <attribute name="testEntityID" optional="YES" attributeType="Integer 64" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testNil" optional="YES" attributeType="String" syncable="YES"/>
-        <attribute name="testNumber" optional="YES" attributeType="Integer 32" syncable="YES"/>
+        <attribute name="testNumber" optional="YES" attributeType="Integer 32" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testString" optional="YES" attributeType="String" syncable="YES"/>
     </entity>
     <entity name="TestEntity2" representedClassName="CoreStoreTests.TestEntity2" syncable="YES">
-        <attribute name="testBoolean" optional="YES" attributeType="Boolean" syncable="YES"/>
+        <attribute name="testBoolean" optional="YES" attributeType="Boolean" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testData" optional="YES" attributeType="Binary" syncable="YES"/>
-        <attribute name="testDate" optional="YES" attributeType="Date" syncable="YES"/>
+        <attribute name="testDate" optional="YES" attributeType="Date" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testDecimal" optional="YES" attributeType="Decimal" syncable="YES"/>
-        <attribute name="testEntityID" optional="YES" attributeType="Integer 64" syncable="YES"/>
+        <attribute name="testEntityID" optional="YES" attributeType="Integer 64" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testNil" optional="YES" attributeType="String" syncable="YES"/>
-        <attribute name="testNumber" optional="YES" attributeType="Integer 32" syncable="YES"/>
+        <attribute name="testNumber" optional="YES" attributeType="Integer 32" usesScalarValueType="NO" syncable="YES"/>
         <attribute name="testString" optional="YES" attributeType="String" syncable="YES"/>
     </entity>
     <configuration name="Config1">

CoreStoreTests/ObjectObserverTests.swift

@@ -33,7 +33,27 @@ import CoreStore
 
 // MARK: - ObjectObserverTests
 
-class ObjectObserverTests: BaseTestDataTestCase {
+    class ObjectObserverTests: BaseTestDataTestCase {
+        
+        @objc
+        dynamic func test_ThatObjectObservers_CanDowncast() {
+            
+            self.prepareStack { (stack) in
+                
+                self.prepareTestDataForStack(stack)
+                
+                guard let object = stack.fetchOne(
+                    From<TestEntity1>(),
+                    Where(#keyPath(TestEntity1.testEntityID), isEqualTo: 101)) else {
+                        
+                        XCTFail()
+                        return
+                }
+                let monitor = stack.monitorObject(object)
+                let downcast = monitor.downcast()
+                XCTAssertTrue(monitor == downcast)
+            }
+        }
     
     @objc
     dynamic func test_ThatObjectObservers_CanReceiveUpdateNotifications() {

CoreStoreTests/WhereTests.swift

@@ -29,6 +29,25 @@ import XCTest
 import CoreStore
 
 
+// MARK: - XCTAssertAllEqual
+
+private func XCTAssertAllEqual(_ whereClauses: Where...) {
+    
+    XCTAssertAllEqual(whereClauses)
+}
+
+private func XCTAssertAllEqual(_ whereClauses: [Where]) {
+    
+    for i in whereClauses.indices {
+        
+        for j in whereClauses.indices where j != i {
+            
+            XCTAssertEqual(whereClauses[i], whereClauses[j])
+        }
+    }
+}
+
+
 //MARK: - WhereTests
 
 final class WhereTests: XCTestCase {
@@ -93,202 +112,114 @@ final class WhereTests: XCTestCase {
         do {
             
             let value: Int = 100
-            let whereClause1 = Where("%K == %d", "key", value)
-            let whereClause2 = Where("%K == %d", "key", value as AnyObject)
-            let whereClause3 = Where("%K == %d", "key", NSNumber(value: value))
-            let whereClause4 = Where("%K == %@", "key", value)
-            let whereClause5 = Where("%K == %@", "key", value as AnyObject)
-            let whereClause6 = Where("%K == %@", "key", NSNumber(value: value))
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K == %d", "key", value),
+                Where("%K == %d", "key", value as AnyObject),
+                Where("%K == %d", "key", NSNumber(value: value)),
+                Where("%K == %@", "key", value),
+                Where("%K == %@", "key", value as AnyObject),
+                Where("%K == %@", "key", NSNumber(value: value)),
+                Where("key", isEqualTo: value),
+                Where("key", isEqualTo: NSNumber(value: value))
+            )
         }
         do {
             
             let value = NSNumber(value: 100)
-            let whereClause1 = Where("%K == %d", "key", value)
-            let whereClause2 = Where("%K == %d", "key", value as AnyObject)
-            let whereClause3 = Where("%K == %d", "key", value.intValue)
-            let whereClause4 = Where("%K == %@", "key", value)
-            let whereClause5 = Where("%K == %@", "key", value as AnyObject)
-            let whereClause6 = Where("%K == %@", "key", value.intValue)
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K == %d", "key", value),
+                Where("%K == %d", "key", value as AnyObject),
+                Where("%K == %d", "key", value.intValue),
+                Where("%K == %@", "key", value),
+                Where("%K == %@", "key", value as AnyObject),
+                Where("%K == %@", "key", value.intValue),
+                Where("key", isEqualTo: value),
+                Where("key", isEqualTo: value.intValue)
+            )
         }
         do {
             
             let value: Int64 = Int64.max
-            let whereClause1 = Where("%K == %d", "key", value)
-            let whereClause2 = Where("%K == %d", "key", value as AnyObject)
-            let whereClause3 = Where("%K == %d", "key", NSNumber(value: value))
-            let whereClause4 = Where("%K == %@", "key", value)
-            let whereClause5 = Where("%K == %@", "key", value as AnyObject)
-            let whereClause6 = Where("%K == %@", "key", NSNumber(value: value))
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K == %d", "key", value),
+                Where("%K == %d", "key", value as AnyObject),
+                Where("%K == %d", "key", NSNumber(value: value)),
+                Where("%K == %@", "key", value),
+                Where("%K == %@", "key", value as AnyObject),
+                Where("%K == %@", "key", NSNumber(value: value)),
+                Where("key", isEqualTo: value),
+                Where("key", isEqualTo: NSNumber(value: value))
+            )
         }
         do {
             
             let value = NSNumber(value: Int64.max)
-            let whereClause1 = Where("%K == %d", "key", value)
-            let whereClause2 = Where("%K == %d", "key", value as AnyObject)
-            let whereClause3 = Where("%K == %d", "key", value.int64Value)
-            let whereClause4 = Where("%K == %@", "key", value)
-            let whereClause5 = Where("%K == %@", "key", value as AnyObject)
-            let whereClause6 = Where("%K == %@", "key", value.int64Value)
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K == %d", "key", value),
+                Where("%K == %d", "key", value as AnyObject),
+                Where("%K == %d", "key", value.int64Value),
+                Where("%K == %@", "key", value),
+                Where("%K == %@", "key", value as AnyObject),
+                Where("%K == %@", "key", value.int64Value),
+                Where("key", isEqualTo: value),
+                Where("key", isEqualTo: value.int64Value)
+            )
         }
         do {
             
             let value: String = "value"
-            let whereClause1 = Where("%K == %s", "key", value)
-            let whereClause2 = Where("%K == %s", "key", value as AnyObject)
-            let whereClause3 = Where("%K == %s", "key", NSString(string: value))
-            let whereClause4 = Where("%K == %@", "key", value)
-            let whereClause5 = Where("%K == %@", "key", value as AnyObject)
-            let whereClause6 = Where("%K == %@", "key", NSString(string: value))
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K == %s", "key", value),
+                Where("%K == %s", "key", value as AnyObject),
+                Where("%K == %s", "key", NSString(string: value)),
+                Where("%K == %@", "key", value),
+                Where("%K == %@", "key", value as AnyObject),
+                Where("%K == %@", "key", NSString(string: value)),
+                Where("key", isEqualTo: value),
+                Where("key", isEqualTo: value as NSString),
+                Where("key", isEqualTo: NSString(string: value))
+            )
         }
         do {
             
             let value = NSString(string: "value")
-            let whereClause1 = Where("%K == %s", "key", value)
-            let whereClause2 = Where("%K == %s", "key", value as String)
-            let whereClause3 = Where("%K == %s", "key", value as String as AnyObject)
-            let whereClause4 = Where("%K == %@", "key", value)
-            let whereClause5 = Where("%K == %@", "key", value as String)
-            let whereClause6 = Where("%K == %@", "key", value as String as AnyObject)
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K == %s", "key", value),
+                Where("%K == %s", "key", value as String),
+                Where("%K == %s", "key", value as String as AnyObject),
+                Where("%K == %@", "key", value),
+                Where("%K == %@", "key", value as String),
+                Where("%K == %@", "key", value as String as AnyObject),
+                Where("key", isEqualTo: value),
+                Where("key", isEqualTo: value as String),
+                Where("key", isEqualTo: value as String as NSString)
+            )
         }
         do {
             
             let value: [Int] = [100, 200]
-            let whereClause1 = Where("%K == %@", "key", value)
-            let whereClause2 = Where("%K == %@", "key", value as AnyObject)
-            let whereClause3 = Where("%K == %@", "key", value as [AnyObject])
-            let whereClause4 = Where("%K == %@", "key", value as NSArray)
-            let whereClause5 = Where("%K == %@", "key", NSArray(array: value))
-            let whereClause6 = Where("%K == %@", "key", value as AnyObject as! NSArray)
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K IN %@", "key", value),
+                Where("%K IN %@", "key", value as AnyObject),
+                Where("%K IN %@", "key", value as [AnyObject]),
+                Where("%K IN %@", "key", value as NSArray),
+                Where("%K IN %@", "key", NSArray(array: value)),
+                Where("%K IN %@", "key", value as AnyObject as! NSArray),
+                Where("key", isMemberOf: value)
+            )
         }
         do {
             
             let value: [Int64] = [Int64.min, 100, Int64.max]
-            let whereClause1 = Where("%K == %@", "key", value)
-            let whereClause2 = Where("%K == %@", "key", value as AnyObject)
-            let whereClause3 = Where("%K == %@", "key", value as [AnyObject])
-            let whereClause4 = Where("%K == %@", "key", value as NSArray)
-            let whereClause5 = Where("%K == %@", "key", NSArray(array: value))
-            let whereClause6 = Where("%K == %@", "key", value as AnyObject as! NSArray)
-            XCTAssertEqual(whereClause1, whereClause2)
-            XCTAssertEqual(whereClause1, whereClause3)
-            XCTAssertEqual(whereClause1, whereClause4)
-            XCTAssertEqual(whereClause1, whereClause5)
-            XCTAssertEqual(whereClause1, whereClause6)
-            XCTAssertEqual(whereClause2, whereClause3)
-            XCTAssertEqual(whereClause2, whereClause4)
-            XCTAssertEqual(whereClause2, whereClause5)
-            XCTAssertEqual(whereClause2, whereClause6)
-            XCTAssertEqual(whereClause3, whereClause4)
-            XCTAssertEqual(whereClause3, whereClause5)
-            XCTAssertEqual(whereClause3, whereClause6)
-            XCTAssertEqual(whereClause4, whereClause5)
-            XCTAssertEqual(whereClause4, whereClause6)
-            XCTAssertEqual(whereClause5, whereClause6)
+            XCTAssertAllEqual(
+                Where("%K IN %@", "key", value),
+                Where("%K IN %@", "key", value as AnyObject),
+                Where("%K IN %@", "key", value as [AnyObject]),
+                Where("%K IN %@", "key", value as NSArray),
+                Where("%K IN %@", "key", NSArray(array: value)),
+                Where("%K IN %@", "key", value as AnyObject as! NSArray),
+                Where("key", isMemberOf: value)
+            )
         }
     }
     

README.md

@@ -519,7 +519,7 @@ are created from `beginSynchronous(...)`. While the syntax is similar to its asy
 ```swift
 CoreStore.beginSynchronous { (transaction) -> Void in
     // make changes
-    transaction.commit()
+    _ = transaction.commit()
 } 
 ```
 `transaction` above is a `SynchronousDataTransaction` instance.

Sources/CSWhere.swift

@@ -85,9 +85,11 @@ public final class CSWhere: NSObject, CSFetchClause, CSQueryClause, CSDeleteClau
      - parameter value: the arguments for the `==` operator
      */
     @objc
-    public convenience init(keyPath: KeyPath, isEqualTo value: NSObject?) {
+    public convenience init(keyPath: KeyPath, isEqualTo value: CoreDataNativeType?) {
         
-        self.init(Where(keyPath, isEqualTo: value))
+        self.init(value == nil || value is NSNull
+            ? Where("\(keyPath) == nil")
+            : Where("\(keyPath) == %@", value!))
     }
     
     /**
@@ -97,9 +99,9 @@ public final class CSWhere: NSObject, CSFetchClause, CSQueryClause, CSDeleteClau
      - parameter list: the array to check membership of
      */
     @objc
-    public convenience init(keyPath: KeyPath, isMemberOf list: [NSObject]) {
+    public convenience init(keyPath: KeyPath, isMemberOf list: [CoreDataNativeType]) {
         
-        self.init(Where(keyPath, isMemberOf: list))
+        self.init(Where("\(keyPath) IN %@", list as NSArray))
     }
     
     /**

Sources/CoreDataNativeType.swift

@@ -0,0 +1,77 @@
+//
+//  CoreDataNativeType.swift
+//  CoreStore
+//
+//  Copyright © 2017 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import Foundation
+import CoreData
+
+
+// MARK: - CoreDataNativeType
+
+@objc public protocol CoreDataNativeType: class, NSObjectProtocol, AnyObject {}
+
+
+// MARK: - NSNumber
+
+extension NSNumber: CoreDataNativeType {}
+
+
+// MARK: - NSString
+
+extension NSString: CoreDataNativeType {}
+
+
+// MARK: - NSDate
+
+extension NSDate: CoreDataNativeType {}
+
+
+// MARK: - NSData
+
+extension NSData: CoreDataNativeType {}
+
+
+// MARK: - NSSet
+
+extension NSSet: CoreDataNativeType {}
+
+
+// MARK: - NSOrderedSet
+
+extension NSOrderedSet: CoreDataNativeType {}
+
+
+// MARK: - NSManagedObject
+
+extension NSManagedObject: CoreDataNativeType {}
+
+
+// MARK: - NSManagedObjectID
+
+extension NSManagedObjectID: CoreDataNativeType {}
+
+
+// MARK: - NSNull
+
+extension NSNull: CoreDataNativeType {}

Sources/CoreStoreImportableAttributeType.swift

@@ -0,0 +1,317 @@
+//
+//  CoreStoreImportableAttributeType.swift
+//  CoreStore
+//
+//  Copyright © 2017 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import Foundation
+import CoreData
+
+
+// MARK: - CoreStoreImportableAttributeType
+
+public protocol CoreStoreImportableAttributeType: CoreStoreQueryableAttributeType {
+    
+    associatedtype ImportableNativeType: QueryableNativeType
+    
+    @inline(__always)
+    static func cs_emptyValue() -> Self
+    
+    @inline(__always)
+    static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Self?
+}
+
+
+// MARK: - NSNumber
+
+extension NSNumber: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSNumber
+    
+    @nonobjc @inline(__always)
+    public class func cs_emptyValue() -> Self {
+        
+        return self.init()
+    }
+    
+    @nonobjc @inline(__always)
+    public class func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Self? {
+        
+        func forceCast<T: NSNumber>(_ value: Any) -> T? {
+            
+            return value as? T
+        }
+        return forceCast(value)
+    }
+}
+
+
+// MARK: - NSString
+
+extension NSString: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSString
+    
+    @nonobjc @inline(__always)
+    public class func cs_emptyValue() -> Self {
+        
+        return self.init()
+    }
+    
+    @nonobjc @inline(__always)
+    public class func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Self? {
+        
+        func forceCast<T: NSString>(_ value: Any) -> T? {
+            
+            return value as? T
+        }
+        return forceCast(value)
+    }
+}
+
+
+// MARK: - NSDate
+
+extension NSDate: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSDate
+    
+    @nonobjc @inline(__always)
+    public class func cs_emptyValue() -> Self {
+        
+        return self.init(timeIntervalSinceReferenceDate: 0)
+    }
+    
+    @nonobjc @inline(__always)
+    public class func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Self? {
+        
+        func forceCast<T: NSDate>(_ value: Any) -> T? {
+            
+            return value as? T
+        }
+        return forceCast(value)
+    }
+}
+
+
+// MARK: - NSData
+
+extension NSData: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSData
+    
+    @nonobjc @inline(__always)
+    public class func cs_emptyValue() -> Self {
+        
+        return self.init()
+    }
+    
+    @nonobjc @inline(__always)
+    public class func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Self? {
+        
+        func forceCast<T: NSData>(_ value: Any) -> T? {
+            
+            return value as? T
+        }
+        return forceCast(value)
+    }
+}
+
+
+// MARK: - Bool
+
+extension Bool: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSNumber
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Bool {
+        
+        return false
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Bool? {
+        
+        return value.boolValue
+    }
+}
+
+
+// MARK: - Int16
+
+extension Int16: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSNumber
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Int16 {
+        
+        return 0
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Int16? {
+        
+        return value.int16Value
+    }
+}
+
+
+// MARK: - Int32
+
+extension Int32: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSNumber
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Int32 {
+        
+        return 0
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Int32? {
+        
+        return value.int32Value
+    }
+}
+
+
+// MARK: - Int64
+
+extension Int64: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSNumber
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Int64 {
+        
+        return 0
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Int64? {
+        
+        return value.int64Value
+    }
+}
+
+
+// MARK: - Double
+
+extension Double: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSNumber
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Double {
+        
+        return 0
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Double? {
+        
+        return value.doubleValue
+    }
+}
+
+
+// MARK: - Float
+
+extension Float: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSNumber
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Float {
+        
+        return 0
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Float? {
+        
+        return value.floatValue
+    }
+}
+
+
+// MARK: - Date
+
+extension Date: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSDate
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Date {
+        
+        return Date(timeIntervalSinceReferenceDate: 0)
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Date? {
+        
+        return value as Date
+    }
+}
+
+
+// MARK: - String
+
+extension String: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSString
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> String {
+        
+        return ""
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> String? {
+        
+        return value as String
+    }
+}
+
+
+// MARK: - Data
+
+extension Data: CoreStoreImportableAttributeType {
+    
+    public typealias ImportableNativeType = NSData
+    
+    @inline(__always)
+    public static func cs_emptyValue() -> Data {
+        
+        return Data()
+    }
+    
+    @inline(__always)
+    public static func cs_fromImportableNativeType(_ value: ImportableNativeType) -> Data? {
+        
+        return value as Data
+    }
+}

Sources/CoreStoreLogger.swift

@@ -50,7 +50,8 @@ public protocol CoreStoreLogger {
     /**
      When `true`, all `NSManagedObject` attribute and relationship access will raise an assertion when executed on the wrong transaction/datastack queue. Defaults to `false` if not implemented.
      */
-    var enableObjectConcurrencyDebugging: Bool { get set }
+    // TODO: test before release (rolled back)
+//    var enableObjectConcurrencyDebugging: Bool { get set }
     
     /**
      Handles log messages sent by the `CoreStore` framework.
@@ -99,11 +100,12 @@ public protocol CoreStoreLogger {
 
 extension CoreStoreLogger {
     
-    public var enableObjectConcurrencyDebugging: Bool {
-        
-        get { return false }
-        set {}
-    }
+    // TODO: test before release (rolled back)
+//    public var enableObjectConcurrencyDebugging: Bool {
+//        
+//        get { return false }
+//        set {}
+//    }
     
     public func abort(_ message: String, fileName: StaticString, lineNumber: Int, functionName: StaticString) {
         

Sources/CoreStoreQueryableAttributeType.swift

@@ -0,0 +1,272 @@
+//
+//  CoreStoreQueryableAttributeType.swift
+//  CoreStore
+//
+//  Copyright © 2017 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import Foundation
+import CoreGraphics
+import CoreData
+
+
+// MARK: - CoreStoreQueryableAttributeType
+
+public protocol CoreStoreQueryableAttributeType: Hashable {
+    
+    associatedtype QueryableNativeType: CoreDataNativeType
+    
+    func cs_toQueryableNativeType() -> QueryableNativeType
+}
+
+
+// MARK: - NSManagedObject
+
+extension NSManagedObject: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSManagedObjectID
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self.objectID
+    }
+}
+
+
+// MARK: - NSManagedObjectID
+
+extension NSManagedObjectID: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSManagedObjectID
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self
+    }
+}
+
+
+// MARK: - NSNumber
+
+extension NSNumber: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self
+    }
+}
+
+
+// MARK: - NSString
+
+extension NSString: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSString
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self
+    }
+}
+
+
+// MARK: - NSDate
+
+extension NSDate: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSDate
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self
+    }
+}
+
+
+// MARK: - NSData
+
+extension NSData: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSData
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self
+    }
+}
+
+
+// MARK: - Bool
+
+extension Bool: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - Int16
+
+extension Int16: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - Int32
+
+extension Int32: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - Int64
+
+extension Int64: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - Int
+
+extension Int: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - Double
+
+extension Double: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - Float
+
+extension Float: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - CGFloat
+
+extension CGFloat: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNumber
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSNumber
+    }
+}
+
+
+// MARK: - Date
+
+extension Date: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSDate
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSDate
+    }
+}
+
+
+// MARK: - String
+
+extension String: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSString
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSString
+    }
+}
+
+
+// MARK: - Data
+
+extension Data: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSData
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self as NSData
+    }
+}
+
+
+// MARK: - NSNull
+
+extension NSNull: CoreStoreQueryableAttributeType {
+    
+    public typealias QueryableNativeType = NSNull
+    
+    public func cs_toQueryableNativeType() -> QueryableNativeType {
+        
+        return self
+    }
+}

Sources/DataStack.swift

@@ -58,8 +58,9 @@ public final class DataStack: Equatable {
      - parameter migrationChain: the `MigrationChain` that indicates the sequence of model versions to be used as the order for progressive migrations. If not specified, will default to a non-migrating data stack.
      */
     public required init(model: NSManagedObjectModel, migrationChain: MigrationChain = nil) {
-        
-        _ = DataStack.isGloballyInitialized
+
+        // TODO: test before release (rolled back)
+//        _ = DataStack.isGloballyInitialized
         
         CoreStore.assert(
             migrationChain.valid,
@@ -501,11 +502,12 @@ public final class DataStack: Equatable {
     
     // MARK: Private
     
-    private static let isGloballyInitialized: Bool = {
-        
-        NSManagedObject.cs_swizzleMethodsForLogging()
-        return true
-    }()
+    // TODO: test before release (rolled back)
+//    private static let isGloballyInitialized: Bool = {
+//        
+//        NSManagedObject.cs_swizzleMethodsForLogging()
+//        return true
+//    }()
     
     private var configurationStoreMapping = [String: NSPersistentStore]()
     private var entityConfigurationsMapping = [String: Set<String>]()

Sources/DefaultLogger.swift

@@ -36,7 +36,8 @@ public final class DefaultLogger: CoreStoreLogger {
     /**
      When `true`, all `NSManagedObject` attribute and relationship access will raise an assertion when executed on the wrong transaction/datastack queue. Defaults to `false`.
      */
-    public var enableObjectConcurrencyDebugging: Bool = false
+    // TODO: test before release (rolled back)
+//    public var enableObjectConcurrencyDebugging: Bool = false
     
     /**
      Creates a `DefaultLogger`.

Sources/FetchedResultsControllerDelegate.swift

@@ -132,16 +132,6 @@ internal final class FetchedResultsControllerDelegate<EntityType: NSManagedObjec
             }
         }
         
-        if #available(iOS 10.0, tvOS 10.0, watchOS 3.0, *) {
-            
-            // I don't know if iOS 10 even attempted to fix this mess...
-            if case .update = actualType,
-                indexPath != nil && newIndexPath != nil {
-                
-                actualType = .move
-            }
-        }
-        
         switch actualType {
             
         case .update:

Sources/ImportableUniqueObject.swift

@@ -59,7 +59,7 @@ public protocol ImportableUniqueObject: ImportableObject {
     /**
      The data type for the entity's unique ID attribute
      */
-    associatedtype UniqueIDType: CoreStoreSupportedAttributeType
+    associatedtype UniqueIDType: CoreStoreImportableAttributeType
     
     /**
      The keyPath to the entity's unique ID attribute
@@ -192,14 +192,14 @@ public extension ImportableUniqueObject where Self: NSManagedObject {
         
         get {
             
-            return UniqueIDType.cs_fromNativeType(
-                self.value(forKey: type(of: self).uniqueIDKeyPath) as! UniqueIDType.CoreStoreNativeType
+            return UniqueIDType.cs_fromImportableNativeType(
+                self.value(forKey: type(of: self).uniqueIDKeyPath) as! UniqueIDType.ImportableNativeType
             )!
         }
         set {
             
             self.setValue(
-                newValue.cs_toNativeType(),
+                newValue.cs_toQueryableNativeType(),
                 forKey: type(of: self).uniqueIDKeyPath
             )
         }

Sources/Importing/CoreDataNativeType.swift

@@ -1,316 +0,0 @@
-//
-//  CoreDataNativeType.swift
-//  CoreStore
-//
-//  Copyright © 2017 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - CoreDataNativeType
-
-public protocol CoreDataNativeType: class, NSObjectProtocol, AnyObject {}
-
-extension NSNumber: CoreDataNativeType {}
-extension NSString: CoreDataNativeType {}
-extension NSDate: CoreDataNativeType {}
-extension NSData: CoreDataNativeType {}
-extension NSSet: CoreDataNativeType {}
-extension NSOrderedSet: CoreDataNativeType {}
-
-
-public protocol CoreStoreSupportedAttributeType {
-    
-    associatedtype CoreStoreNativeType: CoreDataNativeType
-    
-    static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Self?
-    func cs_toNativeType() -> CoreStoreNativeType
-}
-
-extension NSNumber: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSNumber
-    
-    public class func cs_fromNativeType(_ value: CoreStoreNativeType) -> Self? {
-        
-        func forceCast<T: NSNumber>(_ value: Any) -> T? {
-            
-            return value as? T
-        }
-        return forceCast(value)
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self
-    }
-}
-
-extension NSString: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSString
-    
-    public class func cs_fromNativeType(_ value: CoreStoreNativeType) -> Self? {
-        
-        func forceCast<T: NSString>(_ value: Any) -> T? {
-            
-            return value as? T
-        }
-        return forceCast(value)
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self
-    }
-}
-
-extension NSDate: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSDate
-    
-    public class func cs_fromNativeType(_ value: CoreStoreNativeType) -> Self? {
-        
-        func forceCast<T: NSDate>(_ value: Any) -> T? {
-            
-            return value as? T
-        }
-        return forceCast(value)
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self
-    }
-}
-
-extension NSData: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSData
-    
-    public class func cs_fromNativeType(_ value: CoreStoreNativeType) -> Self? {
-        
-        func forceCast<T: NSData>(_ value: Any) -> T? {
-            
-            return value as? T
-        }
-        return forceCast(value)
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self
-    }
-}
-
-extension NSSet: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSSet
-    
-    public class func cs_fromNativeType(_ value: CoreStoreNativeType) -> Self? {
-        
-        func forceCast<T: NSSet>(_ value: Any) -> T? {
-            
-            return value as? T
-        }
-        return forceCast(value)
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self
-    }
-}
-
-extension NSOrderedSet: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSOrderedSet
-    
-    public class func cs_fromNativeType(_ value: CoreStoreNativeType) -> Self? {
-        
-        func forceCast<T: NSOrderedSet>(_ value: Any) -> T? {
-            
-            return value as? T
-        }
-        return forceCast(value)
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self
-    }
-}
-
-
-
-extension Bool: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSNumber
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Bool? {
-        
-        return value.boolValue
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSNumber
-    }
-}
-
-extension Int16: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSNumber
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Int16? {
-        
-        return value.int16Value
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSNumber
-    }
-}
-
-extension Int32: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSNumber
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Int32? {
-        
-        return value.int32Value
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSNumber
-    }
-}
-
-extension Int64: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSNumber
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Int64? {
-        
-        return value.int64Value
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSNumber
-    }
-}
-
-extension Double: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSNumber
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Double? {
-        
-        return value.doubleValue
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSNumber
-    }
-}
-
-extension Float: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSNumber
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Float? {
-        
-        return value.floatValue
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSNumber
-    }
-}
-
-extension Date: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSDate
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Date? {
-        
-        return value as Date
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSDate
-    }
-}
-
-extension String: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSString
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> String? {
-        
-        return value as String
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSString
-    }
-}
-
-extension Data: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSData
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Data? {
-        
-        return value as Data
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSData
-    }
-}
-
-extension Set: CoreStoreSupportedAttributeType {
-    
-    public typealias CoreStoreNativeType = NSSet
-    
-    public static func cs_fromNativeType(_ value: CoreStoreNativeType) -> Set? {
-        
-        return value as? Set
-    }
-    
-    public func cs_toNativeType() -> CoreStoreNativeType {
-        
-        return self as NSSet
-    }
-}
-
-

Sources/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>3.0.2</string>
+	<string>3.1.1</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

Sources/Internal/NSManagedObject+Logging.swift

@@ -1,240 +0,0 @@
-//
-//  NSManagedObject+Logging.swift
-//  CoreStore
-//
-//  Copyright © 2017 John Rommel Estropia
-//
-//  Permission is hereby granted, free of charge, to any person obtaining a copy
-//  of this software and associated documentation files (the "Software"), to deal
-//  in the Software without restriction, including without limitation the rights
-//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-//  copies of the Software, and to permit persons to whom the Software is
-//  furnished to do so, subject to the following conditions:
-//
-//  The above copyright notice and this permission notice shall be included in all
-//  copies or substantial portions of the Software.
-//
-//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-//  SOFTWARE.
-//
-
-import Foundation
-import CoreData
-
-
-// MARK: - NSManagedObject
-
-internal extension NSManagedObject {
-    
-    @nonobjc
-    internal static func cs_swizzleMethodsForLogging() {
-        
-        struct Static {
-            
-            static let isSwizzled = Static.swizzle()
-            
-            private static func swizzle() -> Bool {
-                
-                NSManagedObject.cs_swizzle(
-                    original: #selector(NSManagedObject.willAccessValue(forKey:)),
-                    proxy: #selector(NSManagedObject.cs_willAccessValue(forKey:))
-                )
-                NSManagedObject.cs_swizzle(
-                    original: #selector(NSManagedObject.willChangeValue(forKey:)),
-                    proxy: #selector(NSManagedObject.cs_willChangeValue(forKey:))
-                )
-                NSManagedObject.cs_swizzle(
-                    original: #selector(NSManagedObject.willChangeValue(forKey:withSetMutation:using:)),
-                    proxy: #selector(NSManagedObject.cs_willChangeValue(forKey:withSetMutation:using:))
-                )
-                return true
-            }
-        }
-        assert(Static.isSwizzled)
-    }
-    
-    @nonobjc
-    private static func cs_swizzle(original originalSelector: Selector, proxy swizzledSelector: Selector) {
-        
-        let originalMethod = class_getInstanceMethod(NSManagedObject.self, originalSelector)
-        let swizzledMethod = class_getInstanceMethod(NSManagedObject.self, swizzledSelector)
-        let didAddMethod = class_addMethod(
-            NSManagedObject.self,
-            originalSelector,
-            method_getImplementation(swizzledMethod),
-            method_getTypeEncoding(swizzledMethod)
-        )
-        if didAddMethod {
-            
-            class_replaceMethod(
-                NSManagedObject.self,
-                swizzledSelector,
-                method_getImplementation(originalMethod),
-                method_getTypeEncoding(originalMethod)
-            )
-        }
-        else {
-            
-            method_exchangeImplementations(originalMethod, swizzledMethod)
-        }
-    }
-    
-    private dynamic func cs_willAccessValue(forKey key: String?) {
-        
-        self.cs_willAccessValue(forKey: key)
-        
-        guard CoreStore.logger.enableObjectConcurrencyDebugging else {
-            
-            return
-        }
-        
-        guard let context = self.managedObjectContext else {
-            
-            CoreStore.log(
-                .warning,
-                message: "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(NSManagedObjectContext.self))."
-            )
-            return
-        }
-        if context.isTransactionContext {
-            
-            guard let transaction = context.parentTransaction else {
-                
-                CoreStore.log(
-                    .warning,
-                    message: "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) after has been deleted from its transaction."
-                )
-                return
-            }
-            CoreStore.assert(
-                transaction.isRunningInAllowedQueue(),
-                "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) outside its transaction's designated queue."
-            )
-            return
-        }
-        if context.isDataStackContext {
-            
-            guard context.parentStack != nil else {
-                
-                CoreStore.log(
-                    .warning,
-                    message: "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(DataStack.self)).")
-                return
-            }
-            CoreStore.assert(
-                Thread.isMainThread,
-                "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) outside the main thread."
-            )
-            return
-        }
-    }
-    
-    private dynamic func cs_willChangeValue(forKey key: String?) {
-        
-        self.cs_willChangeValue(forKey: key)
-        
-        guard CoreStore.logger.enableObjectConcurrencyDebugging else {
-            
-            return
-        }
-        
-        guard let context = self.managedObjectContext else {
-            
-            CoreStore.log(
-                .warning,
-                message: "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(NSManagedObjectContext.self))."
-            )
-            return
-        }
-        if context.isTransactionContext {
-            
-            guard let transaction = context.parentTransaction else {
-                
-                CoreStore.log(
-                    .warning,
-                    message: "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) after has been deleted from its transaction."
-                )
-                return
-            }
-            CoreStore.assert(
-                transaction.isRunningInAllowedQueue(),
-                "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) outside its transaction's designated queue."
-            )
-            return
-        }
-        if context.isDataStackContext {
-            
-            guard context.parentStack != nil else {
-                
-                CoreStore.log(
-                    .warning,
-                    message: "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(DataStack.self)).")
-                return
-            }
-            CoreStore.assert(
-                Thread.isMainThread,
-                "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) outside the main thread."
-            )
-            return
-        }
-    }
-    
-    private dynamic func cs_willChangeValue(forKey inKey: String, withSetMutation inMutationKind: NSKeyValueSetMutationKind, using inObjects: Set<AnyHashable>) {
-        
-        self.cs_willChangeValue(
-            forKey: inKey,
-            withSetMutation: inMutationKind,
-            using: inObjects
-        )
-        
-        guard CoreStore.logger.enableObjectConcurrencyDebugging else {
-            
-            return
-        }
-        
-        guard let context = self.managedObjectContext else {
-            
-            CoreStore.log(
-                .warning,
-                message: "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(NSManagedObjectContext.self))."
-            )
-            return
-        }
-        if context.isTransactionContext {
-            
-            guard let transaction = context.parentTransaction else {
-                
-                CoreStore.log(
-                    .warning,
-                    message: "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) after has been deleted from its transaction."
-                )
-                return
-            }
-            CoreStore.assert(
-                transaction.isRunningInAllowedQueue(),
-                "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) outside its transaction's designated queue."
-            )
-            return
-        }
-        if context.isDataStackContext {
-            
-            guard context.parentStack != nil else {
-                
-                CoreStore.log(
-                    .warning,
-                    message: "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(DataStack.self)).")
-                return
-            }
-            CoreStore.assert(
-                Thread.isMainThread,
-                "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) outside the main thread."
-            )
-            return
-        }
-    }
-}

Sources/ListMonitor.swift

@@ -202,7 +202,7 @@ public final class ListMonitor<T: NSManagedObject>: Hashable {
             !self.isPendingRefetch || Thread.isMainThread,
             "Attempted to access a \(cs_typeName(self)) outside the main thread while a refetch is in progress."
         )
-        return (self.fetchedResultsController.fetchedObjects as? [T]) ?? []
+        return self.fetchedResultsController.dynamicCast().fetchedObjects ?? []
     }
     
     /**
@@ -371,7 +371,7 @@ public final class ListMonitor<T: NSManagedObject>: Hashable {
             !self.isPendingRefetch || Thread.isMainThread,
             "Attempted to access a \(cs_typeName(self)) outside the main thread while a refetch is in progress."
         )
-        return (self.fetchedResultsController.fetchedObjects as? [T] ?? []).index(of: object)
+        return (self.fetchedResultsController.dynamicCast().fetchedObjects ?? []).index(of: object)
     }
     
     /**
@@ -677,7 +677,12 @@ public final class ListMonitor<T: NSManagedObject>: Hashable {
     
     internal func downcast() -> ListMonitor<NSManagedObject> {
         
-        return unsafeDowncast(self, to: ListMonitor<NSManagedObject>.self)
+        @inline(__always)
+        func noWarnUnsafeBitCast<T, U>(_ x: T, to type: U.Type) -> U {
+         
+            return unsafeBitCast(x, to: type)
+        }
+        return noWarnUnsafeBitCast(self, to: ListMonitor<NSManagedObject>.self)
     }
     
     internal func registerChangeNotification(_ notificationKey: UnsafeRawPointer, name: Notification.Name, toObserver observer: AnyObject, callback: @escaping (_ monitor: ListMonitor<T>) -> Void) {

Sources/NSManagedObject+Logging.swift

@@ -0,0 +1,241 @@
+//
+//  NSManagedObject+Logging.swift
+//  CoreStore
+//
+//  Copyright © 2017 John Rommel Estropia
+//
+//  Permission is hereby granted, free of charge, to any person obtaining a copy
+//  of this software and associated documentation files (the "Software"), to deal
+//  in the Software without restriction, including without limitation the rights
+//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+//  copies of the Software, and to permit persons to whom the Software is
+//  furnished to do so, subject to the following conditions:
+//
+//  The above copyright notice and this permission notice shall be included in all
+//  copies or substantial portions of the Software.
+//
+//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+//  SOFTWARE.
+//
+
+import Foundation
+import CoreData
+
+
+// MARK: - NSManagedObject
+
+internal extension NSManagedObject {
+    
+    // TODO: test before release (rolled back)
+//    @nonobjc
+//    internal static func cs_swizzleMethodsForLogging() {
+//        
+//        struct Static {
+//            
+//            static let isSwizzled = Static.swizzle()
+//            
+//            private static func swizzle() -> Bool {
+//                
+//                NSManagedObject.cs_swizzle(
+//                    original: #selector(NSManagedObject.willAccessValue(forKey:)),
+//                    proxy: #selector(NSManagedObject.cs_willAccessValue(forKey:))
+//                )
+//                NSManagedObject.cs_swizzle(
+//                    original: #selector(NSManagedObject.willChangeValue(forKey:)),
+//                    proxy: #selector(NSManagedObject.cs_willChangeValue(forKey:))
+//                )
+//                NSManagedObject.cs_swizzle(
+//                    original: #selector(NSManagedObject.willChangeValue(forKey:withSetMutation:using:)),
+//                    proxy: #selector(NSManagedObject.cs_willChangeValue(forKey:withSetMutation:using:))
+//                )
+//                return true
+//            }
+//        }
+//        assert(Static.isSwizzled)
+//    }
+//    
+//    @nonobjc
+//    private static func cs_swizzle(original originalSelector: Selector, proxy swizzledSelector: Selector) {
+//        
+//        let originalMethod = class_getInstanceMethod(NSManagedObject.self, originalSelector)
+//        let swizzledMethod = class_getInstanceMethod(NSManagedObject.self, swizzledSelector)
+//        let didAddMethod = class_addMethod(
+//            NSManagedObject.self,
+//            originalSelector,
+//            method_getImplementation(swizzledMethod),
+//            method_getTypeEncoding(swizzledMethod)
+//        )
+//        if didAddMethod {
+//            
+//            class_replaceMethod(
+//                NSManagedObject.self,
+//                swizzledSelector,
+//                method_getImplementation(originalMethod),
+//                method_getTypeEncoding(originalMethod)
+//            )
+//        }
+//        else {
+//            
+//            method_exchangeImplementations(originalMethod, swizzledMethod)
+//        }
+//    }
+//    
+//    private dynamic func cs_willAccessValue(forKey key: String?) {
+//        
+//        self.cs_willAccessValue(forKey: key)
+//        
+//        guard CoreStore.logger.enableObjectConcurrencyDebugging else {
+//            
+//            return
+//        }
+//        
+//        guard let context = self.managedObjectContext else {
+//            
+//            CoreStore.log(
+//                .warning,
+//                message: "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(NSManagedObjectContext.self))."
+//            )
+//            return
+//        }
+//        if context.isTransactionContext {
+//            
+//            guard let transaction = context.parentTransaction else {
+//                
+//                CoreStore.log(
+//                    .warning,
+//                    message: "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) after has been deleted from its transaction."
+//                )
+//                return
+//            }
+//            CoreStore.assert(
+//                transaction.isRunningInAllowedQueue(),
+//                "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) outside its transaction's designated queue."
+//            )
+//            return
+//        }
+//        if context.isDataStackContext {
+//            
+//            guard context.parentStack != nil else {
+//                
+//                CoreStore.log(
+//                    .warning,
+//                    message: "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(DataStack.self)).")
+//                return
+//            }
+//            CoreStore.assert(
+//                Thread.isMainThread,
+//                "Attempted to access the \"\(key ?? "")\" key of an object of type \(cs_typeName(self)) outside the main thread."
+//            )
+//            return
+//        }
+//    }
+//    
+//    private dynamic func cs_willChangeValue(forKey key: String?) {
+//        
+//        self.cs_willChangeValue(forKey: key)
+//        
+//        guard CoreStore.logger.enableObjectConcurrencyDebugging else {
+//            
+//            return
+//        }
+//        
+//        guard let context = self.managedObjectContext else {
+//            
+//            CoreStore.log(
+//                .warning,
+//                message: "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(NSManagedObjectContext.self))."
+//            )
+//            return
+//        }
+//        if context.isTransactionContext {
+//            
+//            guard let transaction = context.parentTransaction else {
+//                
+//                CoreStore.log(
+//                    .warning,
+//                    message: "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) after has been deleted from its transaction."
+//                )
+//                return
+//            }
+//            CoreStore.assert(
+//                transaction.isRunningInAllowedQueue(),
+//                "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) outside its transaction's designated queue."
+//            )
+//            return
+//        }
+//        if context.isDataStackContext {
+//            
+//            guard context.parentStack != nil else {
+//                
+//                CoreStore.log(
+//                    .warning,
+//                    message: "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(DataStack.self)).")
+//                return
+//            }
+//            CoreStore.assert(
+//                Thread.isMainThread,
+//                "Attempted to change the \"\(key ?? "")\" of an object of type \(cs_typeName(self)) outside the main thread."
+//            )
+//            return
+//        }
+//    }
+//    
+//    private dynamic func cs_willChangeValue(forKey inKey: String, withSetMutation inMutationKind: NSKeyValueSetMutationKind, using inObjects: Set<AnyHashable>) {
+//        
+//        self.cs_willChangeValue(
+//            forKey: inKey,
+//            withSetMutation: inMutationKind,
+//            using: inObjects
+//        )
+//        
+//        guard CoreStore.logger.enableObjectConcurrencyDebugging else {
+//            
+//            return
+//        }
+//        
+//        guard let context = self.managedObjectContext else {
+//            
+//            CoreStore.log(
+//                .warning,
+//                message: "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(NSManagedObjectContext.self))."
+//            )
+//            return
+//        }
+//        if context.isTransactionContext {
+//            
+//            guard let transaction = context.parentTransaction else {
+//                
+//                CoreStore.log(
+//                    .warning,
+//                    message: "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) after has been deleted from its transaction."
+//                )
+//                return
+//            }
+//            CoreStore.assert(
+//                transaction.isRunningInAllowedQueue(),
+//                "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) outside its transaction's designated queue."
+//            )
+//            return
+//        }
+//        if context.isDataStackContext {
+//            
+//            guard context.parentStack != nil else {
+//                
+//                CoreStore.log(
+//                    .warning,
+//                    message: "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) after has been deleted from its \(cs_typeName(DataStack.self)).")
+//                return
+//            }
+//            CoreStore.assert(
+//                Thread.isMainThread,
+//                "Attempted to mutate the \"\(inKey)\" of an object of type \(cs_typeName(self)) outside the main thread."
+//            )
+//            return
+//        }
+//    }
+}