Drop generation of _$entity

No caching of that.

Author: helje5

Sources/ManagedModelMacros/ModelMacro/GenerateInitializers.swift

@@ -46,7 +46,6 @@ extension ModelMacro {
                  message: "Use `init(context:)` or `init()` instead.")
       \(raw: access)override init(entity: CoreData.NSEntityDescription, insertInto context: NSManagedObjectContext?)
       {
-        assert(entity === Self._$entity, "Attempt to initialize PersistentModel w/ different entity?")
         super.init(entity: entity, insertInto: context)
       }
       """
@@ -67,7 +66,7 @@ extension ModelMacro {
       /// - Parameters:
       //    - context: An `NSManagedObjectContext` the object should be inserted into.
       \(raw: access)init(context: CoreData.NSManagedObjectContext?) {
-        super.init(entity: Self._$entity, insertInto: context)
+        super.init(entity: Self.entity(), insertInto: context)
       }
       """
     )
@@ -78,7 +77,7 @@ extension ModelMacro {
         /// Initialize a `\(modelClassName)` object w/o inserting it into a
         /// context.
         \(raw: access)init() {
-          super.init(entity: Self._$entity, insertInto: nil)
+          super.init(entity: Self.entity(), insertInto: nil)
         }
         """
       )

Sources/ManagedModelMacros/ModelMacro/ModelMembers.swift

@@ -14,8 +14,6 @@ import SwiftDiagnostics
  * @attached(member, names: // Those are the names we add
  *   named(init),           // Initializers.
  *   named(schemaMetadata), // The metadata.
- *   named(entity),         // Override the `entity()` function.
- *   named(_$entity),       // The cached the Entity
  *   named(_$originalName),
  *   named(_$hashModifier)
  * )
@@ -55,17 +53,6 @@ extension ModelMacro: MemberMacro { // @attached(member, names:...)
     )
     newMembers.append(DeclSyntax(metadata))
 
-    if classDecl.findFunctionWithName("entity", isStaticOrClass: true,
-                                      parameterCount: 0) == nil
-    {
-      newMembers.append(
-        """
-        /// Returns the `NSEntityDescription` associated w/ the `PersistentModel`.
-        \(raw: access)override class func entity() -> NSEntityDescription { _$entity }
-        """
-      )
-    }
-    
     // TODO: Lookup `originalName` parameter in `macroNode`
     newMembers.append(
       """
@@ -77,15 +64,6 @@ extension ModelMacro: MemberMacro { // @attached(member, names:...)
       \(raw: access)static let _$hashModifier : String? = nil
       """
     )
-
-    newMembers.append(
-      """
-      /// The shared `NSEntityDescription` for the `PersistentModel`.
-      /// Never modify the referred object!
-      \(raw: access)static let _$entity =
-        ManagedModels.SchemaBuilder.shared._entity(for: \(modelClassName).self)
-      """
-    )
 
     return newMembers
   }

Sources/ManagedModels/ModelMacroDefinition.swift

@@ -81,8 +81,6 @@ public macro _PersistedProperty() =
 @attached(member, names: // Those are the names we add
   named(init),           // Initializers.
   named(schemaMetadata), // The metadata.
-  named(entity),         // Override the `entity()` function.
-  named(_$entity),       // The cached the Entity
   named(_$originalName),
   named(_$hashModifier)
 )

Sources/ManagedModels/PersistentModel/PersistentModel+KVC.swift

@@ -120,10 +120,6 @@ public extension PersistentModel {
   func _setOptionalToOneValue<T>(forKey key: String, to model: T?)
     where T: PersistentModel
   {
-    #if DEBUG
-    let relship = Self._$entity.relationshipsByName[key]!
-    assert(!relship.isToMany, "relship: \(relship)")
-    #endif
     if let model {
       if model.modelContext != self.modelContext {
         if let otherCtx = model.modelContext, self.modelContext == nil {

Sources/ManagedModels/PersistentModel/PersistentModel.swift

@@ -19,16 +19,6 @@ public protocol PersistentModel: NSManagedObject, Hashable, Identifiable {
    */
   static var schemaMetadata : [ NSManagedObjectModel.PropertyMetadata ] { get }
 
-  /**
-   * Reflection data for the model.
-   *
-   * This is considered private, use a Schema to access entities, and NEVER
-   * modify the schema objects after they got setup.
-   *
-   * API DIFF: SwiftData doesn't have that, always builds dynamically.
-   */
-  static var _$entity : NSEntityDescription { get }
-    // Why have that? Cheap cache.
 
   /// The `renamingIdentifier` of the model.
   static var _$originalName : String? { get }
@@ -55,16 +45,13 @@ extension PersistentModel {
   public static var schemaMetadata : [ NSManagedObjectModel.PropertyMetadata ] {
     fatalError("Subclass needs to implement `schemaMetadata`")
   }
-  
-  @inlinable
-  public static var _$entity : NSEntityDescription { self.entity() }
 }
 
 public extension PersistentModel {
 
   @inlinable
   static func fetchRequest() -> NSFetchRequest<Self> {
-    NSFetchRequest<Self>(entityName: _$entity.name ?? NSStringFromClass(self))
+    NSFetchRequest<Self>(entityName: _typeName(Self.self, qualified: false))
   }
 
   @inlinable

Tests/ManagedModelTests/BasicModelTests.swift

@@ -16,7 +16,6 @@ final class BasicModelTests: XCTestCase {
 
   func testEntityName() throws {
     let addressType = Fixtures.PersonAddressSchema.Address.self
-    XCTAssertEqual(addressType._$entity.name, "Address")
     XCTAssertEqual(addressType.entity().name, "Address")
   }
 

Tests/ManagedModelTests/CoreDataAssumptionsTests.swift

@@ -20,9 +20,9 @@ final class CoreDataAssumptionsTests: XCTestCase {
     let relationship = NSRelationshipDescription()
     relationship.name = "addresses"
     //relationship.destinationEntity =
-    //  Fixtures.PersonAddressSchema.Address._$entity
+    //  Fixtures.PersonAddressSchema.Address.entity()
     //relationship.inverseRelationship =
-    //  Fixtures.PersonAddressSchema.Address._$entity.relationshipsByName["person"]
+    //  Fixtures.PersonAddressSchema.Address.entity().relationshipsByName["person"]
 
     // This just seems to be the default.
     XCTAssertTrue(relationship.isToMany)
@@ -32,9 +32,10 @@ final class CoreDataAssumptionsTests: XCTestCase {
     let relationship = NSRelationshipDescription()
     relationship.name     = "person"
     relationship.maxCount = 1 // toOne marker!
+    #if false // old
     relationship.destinationEntity =
-      Fixtures.PersonAddressSchema.Person._$entity
-    // Yes! This does not work at this point.
+      Fixtures.PersonAddressSchema.Person.entity()
+    #endif
     XCTAssertFalse(relationship.isToMany)
   }
 

Tests/ManagedModelTests/Schemas/ExpandedPersonAddressSchema.swift

@@ -31,7 +31,7 @@ extension Fixtures {
 
       init(firstname: String, lastname: String, addresses: [ Address ]) {
         // Note: Could do Self.entity!
-        super.init(entity: Self._$entity, insertInto: nil)
+        super.init(entity: Self.entity(), insertInto: nil)
         self.firstname = firstname
         self.lastname  = lastname
         self.addresses = addresses
@@ -42,7 +42,6 @@ extension Fixtures {
         .init(name: "lastname"  , keypath: \Person.lastname),
         .init(name: "addresses" , keypath: \Person.addresses)
       ]
-      public static let _$entity = SchemaBuilder.shared._entity(for: Person.self)
       public static let _$originalName : String? = nil
       public static let _$hashModifier : String? = nil
     }
@@ -54,7 +53,7 @@ extension Fixtures {
       @NSManaged var person     : Person
 
       init(street: String, appartment: String? = nil, person: Person) {
-        super.init(entity: Self._$entity, insertInto: nil)
+        super.init(entity: Self.entity(), insertInto: nil)
         self.street     = street
         self.appartment = appartment
         self.person     = person
@@ -65,7 +64,6 @@ extension Fixtures {
         .init(name: "appartment" , keypath: \Address.appartment),
         .init(name: "person"     , keypath: \Address.person)
       ]
-      public static let _$entity = SchemaBuilder.shared._entity(for: Address.self)
       public static let _$originalName : String? = nil
       public static let _$hashModifier : String? = nil
     }

Tests/ManagedModelTests/Schemas/PersonAddressSchemaNoInverse.swift

@@ -24,7 +24,7 @@ extension Fixtures {
       var addresses : [ Address ]
 
       init(firstname: String, lastname: String, addresses: [ Address ]) {
-        super.init(entity: Self._$entity, insertInto: nil)
+        super.init(entity: Self.entity(), insertInto: nil)
         self.firstname = firstname
         self.lastname  = lastname
         self.addresses = addresses