Merge branch 'develop' into corestore4_develop

# Conflicts:
#	CoreStore.podspec
#	Sources/CoreStoreImportableAttributeType.swift
#	Sources/CoreStoreQueryableAttributeType.swift
#	Sources/Info.plist
#	Sources/NSManagedObjectModel+Setup.swift

Sources/XcodeSchemaMappingProvider.swift

@@ -0,0 +1,91 @@
+//
+//  XcodeSchemaMappingProvider.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 CoreData
+import Foundation
+
+
+// MARK: - XcodeSchemaMappingProvider
+
+final class XcodeSchemaMappingProvider: Hashable, SchemaMappingProvider {
+    
+    public let sourceVersion: ModelVersion
+    public let destinationVersion: ModelVersion
+    public let mappingModelBundle: Bundle
+    
+    public required init(from sourceVersion: ModelVersion, to destinationVersion: ModelVersion, mappingModelBundle: Bundle) {
+        
+        self.sourceVersion = sourceVersion
+        self.destinationVersion = destinationVersion
+        self.mappingModelBundle = mappingModelBundle
+    }
+    
+    
+    // MARK: Equatable
+    
+    public static func == (lhs: XcodeSchemaMappingProvider, rhs: XcodeSchemaMappingProvider) -> Bool {
+        
+        return lhs.sourceVersion == rhs.sourceVersion
+            && lhs.destinationVersion == rhs.destinationVersion
+            && lhs.mappingModelBundle == rhs.mappingModelBundle
+    }
+    
+    
+    // MARK: Hashable
+    
+    public var hashValue: Int {
+        
+        return self.sourceVersion.hashValue
+            ^ self.destinationVersion.hashValue
+    }
+    
+    
+    // MARK: SchemaMappingProvider
+    
+    public func createMappingModel(from sourceSchema: DynamicSchema, to destinationSchema: DynamicSchema, storage: LocalStorage) throws -> (mappingModel: NSMappingModel, migrationType: MigrationType) {
+        
+        let sourceModel = sourceSchema.rawModel()
+        let destinationModel = destinationSchema.rawModel()
+        
+        if let mappingModel = NSMappingModel(
+            from: [self.mappingModelBundle],
+            forSourceModel: sourceModel,
+            destinationModel: destinationModel) {
+            
+            return (
+                mappingModel,
+                .heavyweight(
+                    sourceVersion: sourceSchema.modelVersion,
+                    destinationVersion: destinationSchema.modelVersion
+                )
+            )
+        }
+        throw CoreStoreError.mappingModelNotFound(
+            localStoreURL: storage.fileURL,
+            targetModel: destinationModel,
+            targetModelVersion: destinationSchema.modelVersion
+        )
+    }
+}