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Implement ObjectRepresentation on ObjectMonitor, ObjectPublisher, and ObjectSnapshot for future APIs

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John Estropia
2021-01-02 09:59:15 +09:00
parent e1aed37da0
commit 2cd8101987
4 changed files with 101 additions and 43 deletions
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52
Sources/ObjectRepresentation.swift
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@@ -26,23 +26,37 @@
import CoreData
// MARK: - AnyObjectRepresentation
/**
Used internally by CoreStore. Do not conform to directly.
*/
public protocol AnyObjectRepresentation {
/**
The internal ID for the object.
*/
func objectID() -> NSManagedObjectID
/**
Used internally by CoreStore. Do not call directly.
*/
func cs_dataStack() -> DataStack?
}
// MARK - ObjectRepresentation
/**
An object that acts as interfaces for `CoreStoreObject`s or `NSManagedObject`s
*/
public protocol ObjectRepresentation {
public protocol ObjectRepresentation: AnyObjectRepresentation {
/**
The object type represented by this protocol
*/
associatedtype ObjectType: DynamicObject
/**
The internal ID for the object.
*/
func objectID() -> ObjectType.ObjectID
/**
An instance that may be observed for object changes.
*/
@@ -67,11 +81,6 @@ public protocol ObjectRepresentation {
A thread-safe `struct` that is a full-copy of the object's properties
*/
func asSnapshot(in transaction: BaseDataTransaction) -> ObjectSnapshot<ObjectType>?
/**
Used internally by CoreStore. Do not call directly.
*/
func cs_dataStack() -> DataStack?
}
extension NSManagedObject: ObjectRepresentation {}
@@ -101,14 +110,22 @@ extension DynamicObject where Self: ObjectRepresentation {
.managedObjectContext
.flatMap({ ObjectSnapshot<Self>(objectID: self.cs_id(), context: $0) })
}
// MARK: ObjectRepresentation
// MARK: AnyObjectRepresentation
public func objectID() -> Self.ObjectID {
return self.cs_id()
}
public func cs_dataStack() -> DataStack? {
return self.cs_toRaw().managedObjectContext?.parentStack
}
// MARK: ObjectRepresentation
public func asPublisher(in dataStack: DataStack) -> ObjectPublisher<Self> {
@@ -147,9 +164,4 @@ extension DynamicObject where Self: ObjectRepresentation {
let context = transaction.unsafeContext()
return ObjectSnapshot<Self>(objectID: self.cs_id(), context: context)
}
public func cs_dataStack() -> DataStack? {
return self.cs_toRaw().managedObjectContext?.parentStack
}
}