WIP: Objective-C bridge

Sources/ObjectiveC/CoreStoreBridge.swift

@@ -0,0 +1,74 @@
+//
+//  CoreStoreBridge.swift
+//  CoreStore
+//
+//  Copyright © 2016 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
+
+public protocol CoreStoreBridge: class, AnyObject {
+    
+    associatedtype SwiftType
+    
+    var swift: SwiftType { get }
+    
+    init(_ swiftObject: SwiftType)
+}
+
+public protocol CoreStoreBridgeable: _ObjectiveCBridgeable {
+    
+    associatedtype NativeType: CoreStoreBridge
+}
+
+public extension CoreStoreBridgeable where NativeType.SwiftType == Self {
+    
+    static func _isBridgedToObjectiveC() -> Bool {
+        
+        return true
+    }
+    
+    static func _getObjectiveCType() -> Any.Type {
+        
+        return NativeType.self
+    }
+    
+    func _bridgeToObjectiveC() -> NativeType {
+        
+        return NativeType(self)
+    }
+    
+    static func _forceBridgeFromObjectiveC(source: NativeType, inout result: Self?) {
+        
+        result = source.swift
+    }
+    
+    static func _conditionallyBridgeFromObjectiveC(source: NativeType, inout result: Self?) -> Bool {
+        
+        self._forceBridgeFromObjectiveC(source, result: &result)
+        return true
+    }
+    
+    var objc: NativeType {
+        
+        return self._bridgeToObjectiveC()
+    }
+}