WIP: new PartialObject to act as faster KVC wrappers when implementing custom getters and setters for CoreStoreObject

2026-03-23 18:01:23 +01:00 · 2017-06-15 08:27:08 +09:00
parent 5689158b43
commit 746d697691
5 changed files with 233 additions and 105 deletions
--- a/Sources/PartialObject.swift
+++ b/Sources/PartialObject.swift
@@ -0,0 +1,135 @@
+//
+//  PartialObject.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: - PartialObject
+
+public struct PartialObject<O: CoreStoreObject> {
+    
+    public func completeObject() -> O {
+        
+        return O.cs_fromRaw(object: self.rawObject)
+    }
+    
+    public func value<V: ImportableAttributeType>(for property: (O) -> ValueContainer<O>.Required<V>) -> V {
+        
+        return V.cs_fromImportableNativeType(
+            self.rawObject.value(forKey: property(O.meta).keyPath)! as! V.ImportableNativeType
+        )!
+    }
+    
+    public func value<V: ImportableAttributeType>(for property: (O) -> ValueContainer<O>.Optional<V>) -> V? {
+        
+        return (self.rawObject.value(forKey: property(O.meta).keyPath) as! V.ImportableNativeType?)
+            .flatMap(V.cs_fromImportableNativeType)
+    }
+    
+    public func value<V: NSCoding & NSCopying>(for property: (O) -> TransformableContainer<O>.Required<V>) -> V {
+        
+        return self.rawObject.value(forKey: property(O.meta).keyPath)! as! V
+    }
+    
+    public func value<V: NSCoding & NSCopying>(for property: (O) -> TransformableContainer<O>.Optional<V>) -> V? {
+        
+        return self.rawObject.value(forKey: property(O.meta).keyPath) as! V?
+    }
+    
+    public func setValue<V: ImportableAttributeType>(_ value: V, for property: (O) -> ValueContainer<O>.Required<V>) {
+        
+        self.rawObject.setValue(
+            value.cs_toImportableNativeType(),
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    public func setValue<V: ImportableAttributeType>(_ value: V?, for property: (O) -> ValueContainer<O>.Optional<V>) {
+        
+        self.rawObject.setValue(
+            value?.cs_toImportableNativeType(),
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    public func setValue<V: NSCoding & NSCopying>(_ value: V, for property: (O) -> TransformableContainer<O>.Required<V>) {
+        
+        self.rawObject.setValue(
+            value,
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    public func setValue<V: NSCoding & NSCopying>(_ value: V?, for property: (O) -> TransformableContainer<O>.Optional<V>) {
+        
+        self.rawObject.setValue(
+            value,
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    public func setPrimitiveValue<V: ImportableAttributeType>(_ value: V, for property: (O) -> ValueContainer<O>.Required<V>) {
+        
+        self.rawObject.setPrimitiveValue(
+            value.cs_toImportableNativeType(),
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    public func setPrimitiveValue<V: ImportableAttributeType>(_ value: V?, for property: (O) -> ValueContainer<O>.Optional<V>) {
+        
+        self.rawObject.setPrimitiveValue(
+            value?.cs_toImportableNativeType(),
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    public func setPrimitiveValue<V: NSCoding & NSCopying>(_ value: V, for property: (O) -> TransformableContainer<O>.Required<V>) {
+        
+        self.rawObject.setPrimitiveValue(
+            value,
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    public func setPrimitiveValue<V: NSCoding & NSCopying>(_ value: V?, for property: (O) -> TransformableContainer<O>.Optional<V>) {
+        
+        self.rawObject.setPrimitiveValue(
+            value,
+            forKey: property(O.meta).keyPath
+        )
+    }
+    
+    
+    // MARK: Internal
+    
+    internal let rawObject: NSManagedObject
+    
+    internal init(_ rawObject: NSManagedObject) {
+        
+        self.rawObject = rawObject
+    }
+}