revert Objc method changes

tag refetch methods with source identifiers
added mechanism to track transaction sources
2026-05-21 07:07:40 +02:00 · 2021-09-22 15:03:46 +09:00 · 2021-09-15 19:38:59 +09:00 · 2021-09-15 14:45:13 +09:00 · 2021-08-25 20:13:14 +09:00 · 2021-08-25 09:37:20 +09:00
337 changed files with 21569 additions and 4179 deletions
@@ -0,0 +1,3 @@
 # These are supported funding model platforms
 github: [JohnEstropia]
@@ -12,3 +12,5 @@ Playground_macOS.playground/playground.xcworkspace/xcuserdata
 .swiftpm/xcode/package.xcworkspace/xcuserdata
 .swiftpm/xcode/xcuserdata
 Playground_iOS.playground/playground.xcworkspace/xcuserdata
 LegacyDemo/LegacyDemo.xcodeproj/xcuserdata
 Demo/Demo.xcodeproj/xcuserdata
@@ -1,7 +1,7 @@
 Pod::Spec.new do |s|
    s.name = "CoreStore"
-    s.version = "7.0.4"
+    s.version = "8.0.1"
-    s.swift_version = "5.1"
+    s.swift_version = "5.4"
    s.license = "MIT"
    s.homepage = "https://github.com/JohnEstropia/CoreStore"
    s.documentation_url = "https://JohnEstropia.github.io/CoreStore"
@@ -9,10 +9,10 @@ Pod::Spec.new do |s|
    s.author = { "John Rommel Estropia" => "rommel.estropia@gmail.com" }
    s.source = { :git => "https://github.com/JohnEstropia/CoreStore.git", :tag => s.version.to_s }
-    s.ios.deployment_target = "10.0"
+    s.ios.deployment_target = "11.0"
-    s.osx.deployment_target = "10.12"
+    s.osx.deployment_target = "10.13"
-    s.watchos.deployment_target = "3.0"
+    s.watchos.deployment_target = "4.0"
-    s.tvos.deployment_target = "10.0"
+    s.tvos.deployment_target = "11.0"
    s.source_files = "Sources", "Sources/**/*.{swift,h,m}"
    s.public_header_files = "Sources/**/*.h"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "1200"
   version = "1.3">
   <BuildAction
      parallelizeBuildables = "YES"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "1200"
   version = "1.3">
   <BuildAction
      parallelizeBuildables = "YES"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "1200"
   version = "1.3">
   <BuildAction
      parallelizeBuildables = "YES"
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "1200"
   version = "1.3">
   <BuildAction
      parallelizeBuildables = "YES"
@@ -1,10 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Workspace
   version = "1.0">
   <FileRef
      location = "group:Demo/Demo.xcodeproj">
   </FileRef>
   <FileRef
      location = "group:CoreStore.xcodeproj">
   </FileRef>
   <FileRef
-      location = "group:CoreStoreDemo/CoreStoreDemo.xcodeproj">
+      location = "group:LegacyDemo/LegacyDemo.xcodeproj">
   </FileRef>
 </Workspace>
@@ -1,53 +0,0 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
 	<key>IDESourceControlProjectFavoriteDictionaryKey</key>
 	<false/>
 	<key>IDESourceControlProjectIdentifier</key>
 	<string>B6855E48-4B19-4321-B1C7-CB2706E12777</string>
 	<key>IDESourceControlProjectName</key>
 	<string>CoreStoreDemo</string>
 	<key>IDESourceControlProjectOriginsDictionary</key>
 	<dict>
 		<key>4B60F1BCB491FF717C56441AE7783C74F417BE48</key>
 		<string>github.com:JohnEstropia/CoreStore.git</string>
 		<key>8B2E522D57154DFA93A06982C36315ECBEA4FA97</key>
 		<string>github.com:JohnEstropia/GCDKit.git</string>
 	</dict>
 	<key>IDESourceControlProjectPath</key>
 	<string>CoreStoreDemo/CoreStoreDemo.xcodeproj</string>
 	<key>IDESourceControlProjectRelativeInstallPathDictionary</key>
 	<dict>
 		<key>4B60F1BCB491FF717C56441AE7783C74F417BE48</key>
 		<string>../../..</string>
 		<key>8B2E522D57154DFA93A06982C36315ECBEA4FA97</key>
 		<string>../../..Libraries/GCDKit</string>
 	</dict>
 	<key>IDESourceControlProjectURL</key>
 	<string>github.com:JohnEstropia/CoreStore.git</string>
 	<key>IDESourceControlProjectVersion</key>
 	<integer>111</integer>
 	<key>IDESourceControlProjectWCCIdentifier</key>
 	<string>4B60F1BCB491FF717C56441AE7783C74F417BE48</string>
 	<key>IDESourceControlProjectWCConfigurations</key>
 	<array>
 		<dict>
 			<key>IDESourceControlRepositoryExtensionIdentifierKey</key>
 			<string>public.vcs.git</string>
 			<key>IDESourceControlWCCIdentifierKey</key>
 			<string>4B60F1BCB491FF717C56441AE7783C74F417BE48</string>
 			<key>IDESourceControlWCCName</key>
 			<string>CoreStore</string>
 		</dict>
 		<dict>
 			<key>IDESourceControlRepositoryExtensionIdentifierKey</key>
 			<string>public.vcs.git</string>
 			<key>IDESourceControlWCCIdentifierKey</key>
 			<string>8B2E522D57154DFA93A06982C36315ECBEA4FA97</string>
 			<key>IDESourceControlWCCName</key>
 			<string>GCDKit</string>
 		</dict>
 	</array>
 </dict>
 </plist>
@@ -1,30 +0,0 @@
 {
  "DVTSourceControlWorkspaceBlueprintPrimaryRemoteRepositoryKey" : "4B60F1BCB491FF717C56441AE7783C74F417BE48",
  "DVTSourceControlWorkspaceBlueprintWorkingCopyRepositoryLocationsKey" : {
  },
  "DVTSourceControlWorkspaceBlueprintWorkingCopyStatesKey" : {
    "8B2E522D57154DFA93A06982C36315ECBEA4FA97" : 0,
    "4B60F1BCB491FF717C56441AE7783C74F417BE48" : 0
  },
  "DVTSourceControlWorkspaceBlueprintIdentifierKey" : "B6855E48-4B19-4321-B1C7-CB2706E12777",
  "DVTSourceControlWorkspaceBlueprintWorkingCopyPathsKey" : {
    "8B2E522D57154DFA93A06982C36315ECBEA4FA97" : "CoreStoreLibraries\/GCDKit",
    "4B60F1BCB491FF717C56441AE7783C74F417BE48" : "CoreStore"
  },
  "DVTSourceControlWorkspaceBlueprintNameKey" : "CoreStoreDemo",
  "DVTSourceControlWorkspaceBlueprintVersion" : 203,
  "DVTSourceControlWorkspaceBlueprintRelativePathToProjectKey" : "CoreStoreDemo\/CoreStoreDemo.xcodeproj",
  "DVTSourceControlWorkspaceBlueprintRemoteRepositoriesKey" : [
    {
      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryURLKey" : "github.com:JohnEstropia\/CoreStore.git",
      "DVTSourceControlWorkspaceBlueprintRemoteRepositorySystemKey" : "com.apple.dt.Xcode.sourcecontrol.Git",
      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryIdentifierKey" : "4B60F1BCB491FF717C56441AE7783C74F417BE48"
    },
    {
      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryURLKey" : "github.com:JohnEstropia\/GCDKit.git",
      "DVTSourceControlWorkspaceBlueprintRemoteRepositorySystemKey" : "com.apple.dt.Xcode.sourcecontrol.Git",
      "DVTSourceControlWorkspaceBlueprintRemoteRepositoryIdentifierKey" : "8B2E522D57154DFA93A06982C36315ECBEA4FA97"
    }
  ]
 }
@@ -1,53 +0,0 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
 	<key>IDESourceControlProjectFavoriteDictionaryKey</key>
 	<false/>
 	<key>IDESourceControlProjectIdentifier</key>
 	<string>7C5E31AC-5DD0-43DA-A5C6-AF73B4532D86</string>
 	<key>IDESourceControlProjectName</key>
 	<string>project</string>
 	<key>IDESourceControlProjectOriginsDictionary</key>
 	<dict>
 		<key>4B60F1BCB491FF717C56441AE7783C74F417BE48</key>
 		<string>github.com:JohnEstropia/HardcoreData.git</string>
 		<key>8B2E522D57154DFA93A06982C36315ECBEA4FA97</key>
 		<string>github.com:JohnEstropia/GCDKit.git</string>
 	</dict>
 	<key>IDESourceControlProjectPath</key>
 	<string>HardcoreDataDemo/HardcoreDataDemo.xcodeproj/project.xcworkspace</string>
 	<key>IDESourceControlProjectRelativeInstallPathDictionary</key>
 	<dict>
 		<key>4B60F1BCB491FF717C56441AE7783C74F417BE48</key>
 		<string>../../..</string>
 		<key>8B2E522D57154DFA93A06982C36315ECBEA4FA97</key>
 		<string>../../..Libraries/GCDKit</string>
 	</dict>
 	<key>IDESourceControlProjectURL</key>
 	<string>github.com:JohnEstropia/HardcoreData.git</string>
 	<key>IDESourceControlProjectVersion</key>
 	<integer>111</integer>
 	<key>IDESourceControlProjectWCCIdentifier</key>
 	<string>4B60F1BCB491FF717C56441AE7783C74F417BE48</string>
 	<key>IDESourceControlProjectWCConfigurations</key>
 	<array>
 		<dict>
 			<key>IDESourceControlRepositoryExtensionIdentifierKey</key>
 			<string>public.vcs.git</string>
 			<key>IDESourceControlWCCIdentifierKey</key>
 			<string>8B2E522D57154DFA93A06982C36315ECBEA4FA97</string>
 			<key>IDESourceControlWCCName</key>
 			<string>GCDKit</string>
 		</dict>
 		<dict>
 			<key>IDESourceControlRepositoryExtensionIdentifierKey</key>
 			<string>public.vcs.git</string>
 			<key>IDESourceControlWCCIdentifierKey</key>
 			<string>4B60F1BCB491FF717C56441AE7783C74F417BE48</string>
 			<key>IDESourceControlWCCName</key>
 			<string>HardcoreData</string>
 		</dict>
 	</array>
 </dict>
 </plist>
@@ -1,53 +0,0 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 <<<<<<< Updated upstream
 <document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="9531" systemVersion="15C50" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9529"/>
 =======
 <document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="9532" systemVersion="15D21" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES">
    <dependencies>
        <deployment identifier="iOS"/>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="9530"/>
 >>>>>>> Stashed changes
        <capability name="Constraints with non-1.0 multipliers" minToolsVersion="5.1"/>
    </dependencies>
    <objects>
        <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/>
        <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/>
        <view contentMode="scaleToFill" id="iN0-l3-epB">
            <rect key="frame" x="0.0" y="0.0" width="480" height="480"/>
            <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
            <subviews>
 <<<<<<< Updated upstream
                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright © 2015 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
                    <rect key="frame" x="20" y="439" width="441" height="21"/>
 =======
                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright (c) 2015 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="8ie-xW-0ye">
                    <rect key="frame" x="20" y="439.5" width="441" height="20.5"/>
 >>>>>>> Stashed changes
                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                    <color key="textColor" red="0.92549019607843142" green="0.94117647058823528" blue="0.94509803921568625" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                    <nil key="highlightedColor"/>
                </label>
                <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="CoreStore" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="kId-c2-rCX">
                    <rect key="frame" x="20" y="133" width="441" height="57.5"/>
                    <fontDescription key="fontDescription" name="HelveticaNeue-UltraLight" family="Helvetica Neue" pointSize="50"/>
                    <color key="textColor" red="0.92549019607843142" green="0.94117647058823528" blue="0.94509803921568625" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                    <nil key="highlightedColor"/>
                </label>
            </subviews>
            <color key="backgroundColor" red="0.20392156862745098" green="0.28627450980392155" blue="0.36862745098039218" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
            <constraints>
                <constraint firstItem="kId-c2-rCX" firstAttribute="centerY" secondItem="iN0-l3-epB" secondAttribute="bottom" multiplier="1/3" constant="1" id="5cJ-9S-tgC"/>
                <constraint firstAttribute="centerX" secondItem="kId-c2-rCX" secondAttribute="centerX" id="Koa-jz-hwk"/>
                <constraint firstAttribute="bottom" secondItem="8ie-xW-0ye" secondAttribute="bottom" constant="20" id="Kzo-t9-V3l"/>
                <constraint firstItem="8ie-xW-0ye" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="MfP-vx-nX0"/>
                <constraint firstAttribute="centerX" secondItem="8ie-xW-0ye" secondAttribute="centerX" id="ZEH-qu-HZ9"/>
                <constraint firstItem="kId-c2-rCX" firstAttribute="leading" secondItem="iN0-l3-epB" secondAttribute="leading" constant="20" symbolic="YES" id="fvb-Df-36g"/>
            </constraints>
            <nil key="simulatedStatusBarMetrics"/>
            <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/>
            <point key="canvasLocation" x="548" y="455"/>
        </view>
    </objects>
 </document>
@@ -1,86 +0,0 @@
 //
 //  Palette.swift
 //  CoreStoreDemo
 //
 //  Created by John Rommel Estropia on 2015/05/05.
 //  Copyright © 2018 John Rommel Estropia. All rights reserved.
 //
 import Foundation
 import UIKit
 import CoreData
 import CoreStore
 // MARK: - Palette
 final class Palette: CoreStoreObject {
    let hue = Value.Required<Int>("hue", initial: 0)
    let saturation = Value.Required<Float>("saturation", initial: 0)
    let brightness = Value.Required<Float>("brightness", initial: 0)
    let colorName = Value.Optional<String>(
        "colorName",
        isTransient: true,
        customGetter: Palette.getColorName
    )
    static func randomHue() -> Int {
        return Int(arc4random_uniform(360))
    }
    private static func getColorName(_ partialObject: PartialObject<Palette>) -> String? {
        if let colorName = partialObject.primitiveValue(for: { $0.colorName }) {
            return colorName
        }
        let colorName: String
        switch partialObject.value(for: { $0.hue }) % 360 {
        case 0 ..< 20: colorName = "Lower Reds"
        case 20 ..< 57: colorName = "Oranges and Browns"
        case 57 ..< 90: colorName = "Yellow-Greens"
        case 90 ..< 159: colorName = "Greens"
        case 159 ..< 197: colorName = "Blue-Greens"
        case 197 ..< 241: colorName = "Blues"
        case 241 ..< 297: colorName = "Violets"
        case 297 ..< 331: colorName = "Magentas"
        default: colorName = "Upper Reds"
        }
        partialObject.setPrimitiveValue(colorName, for: { $0.colorName })
        return colorName
    }
 }
 extension Palette {
    var color: UIColor {
        return UIColor(
            hue: CGFloat(self.hue.value) / 360.0,
            saturation: CGFloat(self.saturation.value),
            brightness: CGFloat(self.brightness.value),
            alpha: 1.0
        )
    }
    var colorText: String {
        return "H: \(self.hue.value)˚, S: \(round(self.saturation.value * 100.0))%, B: \(round(self.brightness.value * 100.0))%"
    }
 }
 extension Palette {
    func setInitialValues(in transaction: BaseDataTransaction) {
        self.hue .= Palette.randomHue()
        self.saturation .= Float(1.0)
        self.brightness .= Float(arc4random_uniform(70) + 30) / 100.0
    }
 }
@@ -62,6 +62,9 @@ class BaseTestCase: XCTestCase {
            XCTFail(error.coreStoreDumpString)
        }
        self.addTeardownBlock {
            stack.unsafeRemoveAllPersistentStoresAndWait()
        }
    }
    @nonobjc
@@ -191,16 +191,8 @@
    XCTAssertEqualObjects([[sqliteStorage class] storeType], [CSSQLiteStore storeType]);
    XCTAssertEqualObjects([[sqliteStorage class] storeType], NSSQLiteStoreType);
    XCTAssertNil(sqliteStorage.configuration);
-    NSDictionary *storeOptions;
+    NSDictionary *storeOptions = @{ NSSQLitePragmasOption: @{ @"journal_mode": @"WAL" },
-    if (@available(iOS 11.0, macOS 10.13, tvOS 11.0, *)) {
+                                    NSBinaryStoreInsecureDecodingCompatibilityOption: @YES };
        storeOptions = @{ NSSQLitePragmasOption: @{ @"journal_mode": @"WAL" },
                          NSBinaryStoreInsecureDecodingCompatibilityOption: @YES };
    }
    else {
        storeOptions = @{ NSSQLitePragmasOption: @{ @"journal_mode": @"WAL" }};
    }
    XCTAssertEqualObjects(sqliteStorage.storeOptions, storeOptions);
    XCTAssertNil(sqliteError);
 }
@@ -23,13 +23,15 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
 import CoreStore
 // MARK: - ConvenienceTests
@available(macOS 10.12, *)
 class ConvenienceTests: BaseTestCase {
    @objc
@@ -64,7 +66,7 @@ class ConvenienceTests: BaseTestCase {
        self.prepareStack { (stack) in
-            _ = withExtendedLifetime(stack.beginUnsafe()) { (transaction: UnsafeDataTransaction) in
+            withExtendedLifetime(stack.beginUnsafe()) { (transaction: UnsafeDataTransaction) in
                let controller = transaction.createFetchedResultsController(
                    From<TestEntity1>(),
@@ -37,78 +37,149 @@ import CoreStore
 #endif
 class Animal: CoreStoreObject {
-    
+
-    let species = Value.Required<String>("species", initial: "Swift")
+    @Field.Stored("species")
-    let master = Relationship.ToOne<Person>("master")
+    var species: String = "Swift"
-    let color = Transformable.Optional<Color>("color")
+
    @Field.Coded("color", coder: FieldCoders.NSCoding.self)
    var color: Color? = .blue
    @Field.Relationship("master")
    var master: Person?
 }
 class Dog: Animal {
-    let nickname = Value.Optional<String>("nickname")
+    static let commonNicknames = ["Spot", "Benjie", "Max", "Milo"]
-    let age = Value.Required<Int>("age", initial: 1)
+
-    let friends = Relationship.ToManyOrdered<Dog>("friends")
+    @Field.Stored(
-    let friendedBy = Relationship.ToManyUnordered<Dog>("friendedBy", inverse: { $0.friends })
+        "nickname",
        dynamicInitialValue: {
            commonNicknames.randomElement()!
        }
    )
    var nickname: String
    @Field.Stored("age")
    var age: Int = 1
    @Field.Relationship("friends")
    var friends: [Dog]
    @Field.Relationship("friendedBy", inverse: \.$friends)
    var friendedBy: Set<Dog>
 }
 struct CustomType {
    var string = "customString"
 }
 enum Job: String, CaseIterable {
    case unemployed
    case engineer
    case doctor
    case lawyer
    init?(data: Data) {
        guard
            let rawValue = String(data: data, encoding: .utf8),
            let value = Self.init(rawValue: rawValue)
            else {
            return nil
        }
        self = value
    }
    func toData() -> Data {
        return Data(self.rawValue.utf8)
    }
 }
 class Person: CoreStoreObject {
-    
+
-    let title = Value.Required<String>(
+    @Field.Stored(
        "title",
-        initial: "Mr.",
+        customSetter: { (object, field, newValue) in
-        customSetter: Person.setTitle
+            field.primitiveValue = newValue
            object.$displayName.primitiveValue = nil
        }
    )
-    
+    var title: String = "Mr."
-    let name = Value.Required<String>(
+
    @Field.Stored(
        "name",
-        initial: "",
+        customSetter: { (object, field, newValue) in
-        customSetter: Person.setName
+            field.primitiveValue = newValue
            object.$displayName.primitiveValue = nil
        }
    )
-    
+    var name: String = ""
-    let displayName = Value.Optional<String>(
+
    @Field.Virtual(
        "displayName",
-        isTransient: true,
+        customGetter: Person.getDisplayName(_:_:),
        customGetter: Person.getDisplayName(_:),
        affectedByKeyPaths: Person.keyPathsAffectingDisplayName()
    )
    var displayName: String?
-    let spouse = Relationship.ToOne<Person>("spouse")
+    @Field.Virtual(
-    
+        "customType",
-    let pets = Relationship.ToManyUnordered<Animal>("pets", inverse: { $0.master })
+        customGetter: { (object, field) in
-    private let _spouse = Relationship.ToOne<Person>("_spouseInverse", inverse: { $0.spouse })
+            if let value = field.primitiveValue {
-    
+                return value
-    private static func setTitle(_ partialObject: PartialObject<Person>, _ newValue: String) {
+            }
-        
+            let value = CustomType()
-        partialObject.setPrimitiveValue(newValue, for: { $0.title })
+            field.primitiveValue = value
-        partialObject.setPrimitiveValue(nil, for: { $0.displayName })
+            return value
    }
    private static func setName(_ partialObject: PartialObject<Person>, _ newValue: String) {
        partialObject.setPrimitiveValue(newValue, for: { $0.name })
        partialObject.setPrimitiveValue(nil, for: { $0.displayName })
    }
    static func getDisplayName(_ partialObject: PartialObject<Person>) -> String? {
        if let displayName = partialObject.primitiveValue(for: { $0.displayName }) {
            return displayName
        }
-        let title = partialObject.value(for: { $0.title })
+    )
-        let name = partialObject.value(for: { $0.name })
+    var customField: CustomType
-        let displayName = "\(title) \(name)"
+
-        partialObject.setPrimitiveValue(displayName, for: { $0.displayName })
+    @Field.Coded(
-        return displayName
+        "job",
        coder: (
            encode: { $0.toData() },
            decode: { $0.flatMap(Job.init(data:)) ?? .unemployed }
        ),
        dynamicInitialValue: {
            Job.allCases.randomElement()!
        }
    )
    var job: Job
    @Field.Relationship("spouse")
    var spouse: Person?
    @Field.Relationship("pets", inverse: \.$master)
    var pets: Set<Animal>
    @Field.Relationship("_spouseInverse", inverse: \.$spouse)
    private var spouseInverse: Person?
    private static func getDisplayName(_ object: ObjectProxy<Person>, _ field: ObjectProxy<Person>.FieldProxy<String?>) -> String? {
        if let value = field.primitiveValue {
            return value
        }
        let title = object.$title.value
        let name = object.$name.value
        let value = "\(title) \(name)"
        field.primitiveValue = value
        return value
    }
-    static func keyPathsAffectingDisplayName() -> Set<String> {
+    private static func keyPathsAffectingDisplayName() -> Set<String> {
        return [
-            String(keyPath: \Person.title),
+            String(keyPath: \Person.$title),
-            String(keyPath: \Person.name)
+            String(keyPath: \Person.$name)
        ]
    }
 }
@@ -126,25 +197,25 @@ class DynamicModelTests: BaseTestDataTestCase {
                modelVersion: "V1",
                entities: [
                    Entity<Animal>("Animal"),
-                    Entity<Dog>("Dog"),
+                    Entity<Dog>("Dog", indexes: [[\Dog.$nickname, \Dog.$age]]),
                    Entity<Person>("Person")
                ],
                versionLock: [
                    "Animal": [0x1b59d511019695cf, 0xdeb97e86c5eff179, 0x1cfd80745646cb3, 0x4ff99416175b5b9a],
-                    "Dog": [0xe3f0afeb109b283a, 0x29998d292938eb61, 0x6aab788333cfc2a3, 0x492ff1d295910ea7],
+                    "Dog": [0xad6de93adc5565d, 0x7897e51253eba5a3, 0xd12b9ce0b13600f3, 0x5a4827cd794cd15e],
-                    "Person": [0x2831cf046084d96d, 0xbe19b13ace54641, 0x635a082728b0f6f0, 0x3d4ef2dd4b74a87c]
+                    "Person": [0xf3e6ba6016bbedc6, 0x50dedf64f0eba490, 0xa32088a0ee83468d, 0xb72d1d0b37bd0992]
                ]
            )
        )
        self.prepareStack(dataStack, configurations: [nil]) { (stack) in
-            let k1 = String(keyPath: \Animal.species)
+            let k1 = String(keyPath: \Animal.$species)
            XCTAssertEqual(k1, "species")
-            let k2 = String(keyPath: \Dog.species)
+            let k2 = String(keyPath: \Dog.$species)
            XCTAssertEqual(k2, "species")
-            let k3 = String(keyPath: \Dog.nickname)
+            let k3 = String(keyPath: \Dog.$nickname)
            XCTAssertEqual(k3, "nickname")
            let updateDone = self.expectation(description: "update-done")
@@ -156,27 +227,28 @@ class DynamicModelTests: BaseTestDataTestCase {
                asynchronous: { (transaction) in
                    let animal = transaction.create(Into<Animal>())
-                    XCTAssertEqual(animal.species.value, "Swift")
+                    XCTAssertEqual(animal.species, "Swift")
-                    XCTAssertTrue(type(of: animal.species.value) == String.self)
+                    XCTAssertTrue(type(of: animal.species) == String.self)
                    XCTAssertEqual(animal.color, Color.blue)
-                    animal.species .= "Sparrow"
+                    animal.species = "Sparrow"
-                    XCTAssertEqual(animal.species.value, "Sparrow")
+                    XCTAssertEqual(animal.species, "Sparrow")
-                    animal.color .= .yellow
+                    animal.color = .yellow
-                    XCTAssertEqual(animal.color.value, Color.yellow)
+                    XCTAssertEqual(animal.color, Color.yellow)
                    for property in Animal.metaProperties(includeSuperclasses: true) {
                        switch property.keyPath {
-                        case String(keyPath: \Animal.species):
+                        case String(keyPath: \Animal.$species):
-                            XCTAssertTrue(property is ValueContainer<Animal>.Required<String>)
+                            XCTAssertTrue(property is FieldContainer<Animal>.Stored<String>)
-                        case String(keyPath: \Animal.master):
+                        case String(keyPath: \Animal.$master):
-                            XCTAssertTrue(property is RelationshipContainer<Animal>.ToOne<Person>)
+                            XCTAssertTrue(property is FieldContainer<Animal>.Relationship<Person?>)
-                        case String(keyPath: \Animal.color):
+                        case String(keyPath: \Animal.$color):
-                            XCTAssertTrue(property is TransformableContainer<Animal>.Optional<Color>)
+                            XCTAssertTrue(property is FieldContainer<Animal>.Coded<Color?>)
                        default:
                            XCTFail("Unknown KeyPath: \"\(property.keyPath)\"")
@@ -184,64 +256,51 @@ class DynamicModelTests: BaseTestDataTestCase {
                    }
                    let dog = transaction.create(Into<Dog>())
-                    XCTAssertEqual(dog.species.value, "Swift")
+                    XCTAssertEqual(dog.species, "Swift")
-                    XCTAssertEqual(dog.nickname.value, nil)
+                    XCTAssertEqual(dog.age, 1)
-                    XCTAssertEqual(dog.age.value, 1)
+                    XCTAssertTrue(Dog.commonNicknames.contains(dog.nickname))
                    for property in Dog.metaProperties(includeSuperclasses: true) {
                        switch property.keyPath {
-                        case String(keyPath: \Dog.species):
+                        case String(keyPath: \Dog.$species):
-                            XCTAssertTrue(property is ValueContainer<Animal>.Required<String>)
+                            XCTAssertTrue(property is FieldContainer<Animal>.Stored<String>)
-                        case String(keyPath: \Dog.master):
+                        case String(keyPath: \Dog.$master):
-                            XCTAssertTrue(property is RelationshipContainer<Animal>.ToOne<Person>)
+                            XCTAssertTrue(property is FieldContainer<Animal>.Relationship<Person?>)
-                        case String(keyPath: \Dog.color):
+                        case String(keyPath: \Dog.$color):
-                            XCTAssertTrue(property is TransformableContainer<Animal>.Optional<Color>)
+                            XCTAssertTrue(property is FieldContainer<Animal>.Coded<Color?>)
-                        case String(keyPath: \Dog.nickname):
+                        case String(keyPath: \Dog.$nickname):
-                            XCTAssertTrue(property is ValueContainer<Dog>.Optional<String>)
+                            XCTAssertTrue(property is FieldContainer<Dog>.Stored<String>)
-                        case String(keyPath: \Dog.age):
+                        case String(keyPath: \Dog.$age):
-                            XCTAssertTrue(property is ValueContainer<Dog>.Required<Int>)
+                            XCTAssertTrue(property is FieldContainer<Dog>.Stored<Int>)
-                        case String(keyPath: \Dog.friends):
+                        case String(keyPath: \Dog.$friends):
-                            XCTAssertTrue(property is RelationshipContainer<Dog>.ToManyOrdered<Dog>)
+                            XCTAssertTrue(property is FieldContainer<Dog>.Relationship<[Dog]>)
-                        case String(keyPath: \Dog.friendedBy):
+                        case String(keyPath: \Dog.$friendedBy):
-                            XCTAssertTrue(property is RelationshipContainer<Dog>.ToManyUnordered<Dog>)
+                            XCTAssertTrue(property is FieldContainer<Dog>.Relationship<Set<Dog>>)
                        default:
                            XCTFail("Unknown KeyPath: \"\(property.keyPath)\"")
                        }
                    }
-//                    #if swift(>=5.1)
+                    let didSetObserver = dog.observe(\.$species, options: [.new, .old]) { (object, change) in
 //
 //                    let dogKeyPathBuilder = Dog.keyPathBuilder()
 //                    XCTAssertEqual(dogKeyPathBuilder.species.keyPathString, "SELF.species")
 //                    XCTAssertEqual(dogKeyPathBuilder.master.title.keyPathString, "SELF.master.title")
 //                    let a = dogKeyPathBuilder.master
 //                    let b = dogKeyPathBuilder.master.spouse
 //                    let c = dogKeyPathBuilder.master.spouse.pets
 //                    let d = dogKeyPathBuilder.master.spouse.pets.color
 //                    XCTAssertEqual(dogKeyPathBuilder.master.spouse.pets.color.keyPathString, "SELF.master.spouse.pets.color")
 //
 //                    #endif
                    let didSetObserver = dog.species.observe(options: [.new, .old]) { (object, change) in
                        XCTAssertEqual(object, dog)
                        XCTAssertEqual(change.kind, .setting)
                        XCTAssertEqual(change.newValue, "Dog")
                        XCTAssertEqual(change.oldValue, "Swift")
                        XCTAssertFalse(change.isPrior)
-                        XCTAssertEqual(object.species.value, "Dog")
+                        XCTAssertEqual(object.species, "Dog")
                        didSetObserverDone.fulfill()
                    }
-                    let willSetObserver = dog.species.observe(options: [.new, .old, .prior]) { (object, change) in
+                    let willSetObserver = dog.observe(\.$species, options: [.new, .old, .prior]) { (object, change) in
                        XCTAssertEqual(object, dog)
                        XCTAssertEqual(change.kind, .setting)
@@ -250,28 +309,31 @@ class DynamicModelTests: BaseTestDataTestCase {
                        if change.isPrior {
                            XCTAssertNil(change.newValue)
-                            XCTAssertEqual(object.species.value, "Swift")
+                            XCTAssertEqual(object.species, "Swift")
                            willSetPriorObserverDone.fulfill()
                        }
                        else {
                            XCTAssertEqual(change.newValue, "Dog")
-                            XCTAssertEqual(object.species.value, "Dog")
+                            XCTAssertEqual(object.species, "Dog")
                            willSetNotPriorObserverDone.fulfill()
                        }
                    }
-                    dog.species .= "Dog"
+                    dog.species = "Dog"
-                    XCTAssertEqual(dog.species.value, "Dog")
+                    XCTAssertEqual(dog.species, "Dog")
                    didSetObserver.invalidate()
                    willSetObserver.invalidate()
-                    dog.nickname .= "Spot"
+                    dog.nickname = "Spot"
-                    XCTAssertEqual(dog.nickname.value, "Spot")
+                    XCTAssertEqual(dog.nickname, "Spot")
                    let person = transaction.create(Into<Person>())
-                    XCTAssertTrue(person.pets.value.isEmpty)
+                    XCTAssertTrue(person.pets.isEmpty)
                    XCTAssertEqual(person.customField.string, "customString")
                    let initialJob = person.job
                    XCTAssertTrue(Job.allCases.contains(initialJob))
                    XCTAssertEqual(
                        person.rawObject!
@@ -280,7 +342,7 @@ class DynamicModelTests: BaseTestDataTestCase {
                        ["title", "name"]
                    )
-                    person.name .= "Joe"
+                    person.name = "Joe"
                    XCTAssertEqual(person.rawObject!.value(forKey: "name") as! String?, "Joe")
                    XCTAssertEqual(person.rawObject!.value(forKey: "displayName") as! String?, "Mr. Joe")
@@ -288,46 +350,66 @@ class DynamicModelTests: BaseTestDataTestCase {
                    person.rawObject!.setValue("AAAA", forKey: "displayName")
                    XCTAssertEqual(person.rawObject!.value(forKey: "displayName") as! String?, "AAAA")
-                    person.name .= "John"
+                    person.name = "John"
-                    XCTAssertEqual(person.name.value, "John")
+                    XCTAssertEqual(person.name, "John")
-                    XCTAssertEqual(person.displayName.value, "Mr. John") // Custom getter
+                    XCTAssertEqual(person.displayName, "Mr. John") // Custom getter
                    let personSnapshot1 = person.asSnapshot(in: transaction)!
-                    XCTAssertEqual(person.name.value, personSnapshot1.name)
+                    XCTAssertEqual(person.name, personSnapshot1.$name)
-                    XCTAssertEqual(person.title.value, personSnapshot1.title)
+                    XCTAssertEqual(person.title, personSnapshot1.$title)
-                    XCTAssertEqual(person.displayName.value, personSnapshot1.displayName)
+                    XCTAssertEqual(person.displayName, personSnapshot1.$displayName)
                    XCTAssertEqual(person.job, personSnapshot1.$job)
-                    person.title .= "Sir"
+                    person.title = "Sir"
-                    XCTAssertEqual(person.displayName.value, "Sir John")
+                    XCTAssertEqual(person.displayName, "Sir John")
-                    XCTAssertEqual(personSnapshot1.name, "John")
+                    XCTAssertEqual(personSnapshot1.$name, "John")
-                    XCTAssertEqual(personSnapshot1.title, "Mr.")
+                    XCTAssertEqual(personSnapshot1.$title, "Mr.")
-                    XCTAssertEqual(personSnapshot1.displayName, "Mr. John")
+                    XCTAssertEqual(personSnapshot1.$displayName, "Mr. John")
                    person.customField.string = "newCustomString"
                    XCTAssertEqual(person.customField.string, "newCustomString")
                    person.job = .engineer
                    XCTAssertEqual(person.job, .engineer)
                    let personSnapshot2 = person.asSnapshot(in: transaction)!
-                    XCTAssertEqual(person.name.value, personSnapshot2.name)
+                    XCTAssertEqual(person.name, personSnapshot2.$name)
-                    XCTAssertEqual(person.title.value, personSnapshot2.title)
+                    XCTAssertEqual(person.title, personSnapshot2.$title)
-                    XCTAssertEqual(person.displayName.value, personSnapshot2.displayName)
+                    XCTAssertEqual(person.displayName, personSnapshot2.$displayName)
                    XCTAssertEqual(person.job, personSnapshot2.$job)
                    var personSnapshot3 = personSnapshot2
-                    personSnapshot3.name = "James"
+                    personSnapshot3.$name = "James"
-                    XCTAssertEqual(personSnapshot1.name, "John")
+                    XCTAssertEqual(personSnapshot1.$name, "John")
-                    XCTAssertEqual(personSnapshot1.displayName, "Mr. John")
+                    XCTAssertEqual(personSnapshot1.$displayName, "Mr. John")
-                    XCTAssertEqual(personSnapshot2.name, "John")
+                    XCTAssertEqual(personSnapshot1.$job, initialJob)
-                    XCTAssertEqual(personSnapshot2.displayName, "Sir John")
+                    XCTAssertEqual(personSnapshot2.$name, "John")
-                    XCTAssertEqual(personSnapshot3.name, "James")
+                    XCTAssertEqual(personSnapshot2.$displayName, "Sir John")
-                    XCTAssertEqual(personSnapshot3.displayName, "Sir John")
+                    XCTAssertEqual(personSnapshot2.$job, .engineer)
                    XCTAssertEqual(personSnapshot3.$name, "James")
                    XCTAssertEqual(personSnapshot3.$displayName, "Sir John")
                    XCTAssertEqual(personSnapshot3.$job, .engineer)
-                    person.pets.value.insert(dog)
+                    person.pets.insert(dog)
                    XCTAssertEqual(person.pets.count, 1)
-                    XCTAssertEqual(person.pets.value.first, dog)
+                    XCTAssertEqual(person.pets.first, dog)
-                    XCTAssertEqual(person.pets.value.first?.master.value, person)
+                    XCTAssertEqual(person.pets.first?.master, person)
-                    XCTAssertEqual(dog.master.value, person)
+                    XCTAssertEqual(dog.master, person)
-                    XCTAssertEqual(dog.master.value?.pets.value.first, dog)
+                    XCTAssertEqual(dog.master?.pets.first, dog)
                },
                success: { _ in
-                    
+
                    let person = try! stack.fetchOne(From<Person>())
                    XCTAssertNotNil(person)
                    let personPublisher = person!.asPublisher(in: stack)
                    XCTAssertEqual(personPublisher.$name, "John")
                    XCTAssertEqual(personPublisher.$displayName, "Sir John")
                    XCTAssertEqual(personPublisher.$job, .engineer)
                    updateDone.fulfill()
                },
                failure: { _ in
@@ -338,59 +420,67 @@ class DynamicModelTests: BaseTestDataTestCase {
            stack.perform(
                asynchronous: { (transaction) in
-                    let p1 = Where<Animal>({ $0.species == "Sparrow" })
+                    let p1 = Where<Animal>({ $0.$species == "Sparrow" })
                    XCTAssertEqual(p1.predicate, NSPredicate(format: "%K == %@", "species", "Sparrow"))
                    let bird = try transaction.fetchOne(From<Animal>(), p1)
                    XCTAssertNotNil(bird)
-                    XCTAssertEqual(bird!.species.value, "Sparrow")
+                    XCTAssertEqual(bird!.species, "Sparrow")
                    XCTAssertEqual(bird!.color, Color.yellow)
-                    let p2 = Where<Dog>({ $0.nickname == "Spot" })
+                    let p2 = Where<Dog>({ $0.$nickname == "Spot" })
                    XCTAssertEqual(p2.predicate, NSPredicate(format: "%K == %@", "nickname", "Spot"))
-                    let dog = try transaction.fetchOne(From<Dog>().where(\.nickname == "Spot"))
+                    let dog = try transaction.fetchOne(From<Dog>().where(\.$nickname == "Spot"))
                    XCTAssertNotNil(dog)
-                    XCTAssertEqual(dog!.nickname.value, "Spot")
+                    XCTAssertEqual(dog!.nickname, "Spot")
-                    XCTAssertEqual(dog!.species.value, "Dog")
+                    XCTAssertEqual(dog!.species, "Dog")
                    let person = try transaction.fetchOne(From<Person>())
                    XCTAssertNotNil(person)
-                    XCTAssertEqual(person!.pets.value.first, dog)
+                    XCTAssertEqual(person!.name, "John")
                    XCTAssertEqual(person!.title, "Sir")
                    XCTAssertEqual(person!.displayName, "Sir John")
                    XCTAssertEqual(person!.customField.string, "customString")
                    XCTAssertEqual(person!.job, .engineer)
                    XCTAssertEqual(person!.pets.first, dog)
-                    let p3 = Where<Dog>({ $0.age == 10 })
+                    let p3 = Where<Dog>({ $0.$age == 10 })
                    XCTAssertEqual(p3.predicate, NSPredicate(format: "%K == %d", "age", 10))
-                    let totalAge = try transaction.queryValue(From<Dog>().select(Int.self, .sum(\Dog.age)))
+                    let totalAge = try transaction.queryValue(
                        From<Dog>().select(Int.self, .sum(\.$age))
                    )
                    XCTAssertEqual(totalAge, 1)
                    _ = try transaction.fetchAll(
                        From<Dog>()
-                            .where(\Animal.species == "Dog" && \Dog.age == 10)
+                            .where(\Animal.$species == "Dog" && \Dog.$age == 10)
                    )
                    _ = try transaction.fetchAll(
                        From<Dog>()
-                            .where(\Dog.age == 10 && \Animal.species == "Dog")
+                            .where(\Dog.$age == 10 && \Animal.$species == "Dog")
-                            .orderBy(.ascending({ $0.species }))
+                            .orderBy(.ascending({ $0.$species }))
                    )
                    _ = try transaction.fetchAll(
                        From<Dog>(),
-                        Where<Dog>({ $0.age > 10 && $0.age <= 15 })
+                        Where<Dog>({ $0.$age > 10 && $0.$age <= 15 })
                    )
                    _ = try transaction.fetchAll(
                        From<Dog>(),
-                        Where<Dog>({ $0.species == "Dog" && $0.age == 10 })
+                        Where<Dog>({ $0.$species == "Dog" && $0.$age == 10 })
                    )
                    _ = try transaction.fetchAll(
                        From<Dog>(),
-                        Where<Dog>({ $0.age == 10 && $0.species == "Dog" })
+                        Where<Dog>({ $0.$age == 10 && $0.$species == "Dog" })
                    )
                    _ = try transaction.fetchAll(
                        From<Dog>(),
-                        Where<Dog>({ $0.age > 10 && $0.age <= 15 })
+                        Where<Dog>({ $0.$age > 10 && $0.$age <= 15 })
                    )
                    _ = try transaction.fetchAll(
                        From<Dog>(),
-                        (\Dog.age > 10 && \Dog.age <= 15)
+                        (\Dog.$age > 10 && \Dog.$age <= 15)
                    )
                },
                success: { _ in
@@ -402,15 +492,20 @@ class DynamicModelTests: BaseTestDataTestCase {
                    XCTFail()
                }
            )
-            self.waitAndCheckExpectations()
+        }
        self.waitForExpectations(timeout: 10, handler: { _ in })
        self.addTeardownBlock {
            dataStack.unsafeRemoveAllPersistentStoresAndWait()
        }
    }
    @objc
    dynamic func test_ThatDynamicModelKeyPaths_CanBeCreated() {
-        XCTAssertEqual(String(keyPath: \Animal.species), "species")
+        XCTAssertEqual(String(keyPath: \Animal.$species), "species")
-        XCTAssertEqual(String(keyPath: \Dog.species), "species")
+        XCTAssertEqual(String(keyPath: \Dog.$species), "species")
    }
    @nonobjc
@@ -132,8 +132,8 @@ final class FetchTests: BaseTestDataTestCase {
                    }
                )
            }
            self.waitAndCheckExpectations()
        }
        self.waitAndCheckExpectations()
    }
    @objc
@@ -267,8 +267,8 @@ final class FetchTests: BaseTestDataTestCase {
                    }
                )
            }
            self.waitAndCheckExpectations()
        }
        self.waitAndCheckExpectations()
    }
    @objc
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -31,7 +32,6 @@ import CoreStore
 // MARK: - ListObserverTests
@available(macOS 10.12, *)
 class ListObserverTests: BaseTestDataTestCase {
    @objc
@@ -53,7 +53,7 @@ class ListObserverTests: BaseTestDataTestCase {
            var events = 0
-            let willChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorWillChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -67,7 +67,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 0
                }
            )
-            let didInsertSectionExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitor:didInsertSection:toSectionIndex:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -87,7 +87,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 1
                }
            )
-            let didInsertObjectExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitor:didInsertObject:toIndexPath:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -119,7 +119,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 2
                }
            )
-            let didChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorDidChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -184,7 +184,7 @@ class ListObserverTests: BaseTestDataTestCase {
            var events = 0
-            let willChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorWillChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -199,7 +199,7 @@ class ListObserverTests: BaseTestDataTestCase {
                }
            )
-            let didUpdateObjectExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitor:didUpdateObject:atIndexPath:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -250,7 +250,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 1 || events == 2
                }
            )
-            let didChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorDidChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -329,7 +329,7 @@ class ListObserverTests: BaseTestDataTestCase {
            var events = 0
-            let willChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorWillChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -343,7 +343,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 0
                }
            )
-            let didMoveObjectExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitor:didMoveObject:fromIndexPath:toIndexPath:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -376,7 +376,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 1
                }
            )
-            let didChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorDidChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -437,7 +437,7 @@ class ListObserverTests: BaseTestDataTestCase {
            var events = 0
-            let willChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorWillChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -451,7 +451,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 0
                }
            )
-            let didUpdateObjectExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitor:didDeleteObject:fromIndexPath:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -480,7 +480,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 1 || events == 2
                }
            )
-            let didDeleteSectionExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitor:didDeleteSection:fromSectionIndex:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -508,7 +508,7 @@ class ListObserverTests: BaseTestDataTestCase {
                    return events == 3
                }
            )
-            let didChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorDidChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -551,7 +551,6 @@ class ListObserverTests: BaseTestDataTestCase {
 // MARK: TestListObserver
@available(macOS 10.12, *)
 class TestListObserver: ListSectionObserver {
    // MARK: ListObserver
@@ -31,7 +31,6 @@ import CoreStore
 // MARK: - ObjectObserverTests
@available(macOS 10.12, *)
 class ObjectObserverTests: BaseTestDataTestCase {
    @objc
@@ -57,7 +56,7 @@ class ObjectObserverTests: BaseTestDataTestCase {
            var events = 0
-            let willUpdateExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "objectMonitor:willUpdateObject:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -74,7 +73,7 @@ class ObjectObserverTests: BaseTestDataTestCase {
                    return events == 0
                }
            )
-            let didUpdateExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "objectMonitor:didUpdateObject:changedPersistentKeys:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -154,7 +153,7 @@ class ObjectObserverTests: BaseTestDataTestCase {
            var events = 0
-            let didDeleteExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "objectMonitor:didDeleteObject:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -203,7 +202,6 @@ class ObjectObserverTests: BaseTestDataTestCase {
 // MARK: TestObjectObserver
@available(macOS 10.12, *)
 class TestObjectObserver: ObjectObserver {
    typealias ObjectEntityType = TestEntity1
@@ -31,7 +31,6 @@ import CoreStore
 // MARK: - ObjectPublisherTests
@available(macOS 10.12, *)
 class ObjectPublisherTests: BaseTestDataTestCase {
    @objc
@@ -144,6 +143,7 @@ class ObjectPublisherTests: BaseTestDataTestCase {
                    XCTFail()
                }
            )
            self.waitAndCheckExpectations()
            withExtendedLifetime(objectPublisher, {})
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -31,7 +32,6 @@ import CoreStore
 //MARK: - SectionByTests
@available(macOS 10.12, *)
 final class SectionByTests: XCTestCase {
    @objc
@@ -41,11 +41,14 @@ final class SectionByTests: XCTestCase {
            let sectionBy = SectionBy<NSManagedObject>("key")
            XCTAssertEqual(sectionBy.sectionKeyPath, "key")
-            XCTAssertEqual(sectionBy.sectionIndexTransformer("key"), "key")
+            XCTAssertNil(sectionBy.sectionIndexTransformer("key"))
        }
        do {
-            let sectionBy = SectionBy<NSManagedObject>("key") { $0.flatMap { "\($0):suffix" } }
+            let sectionBy = SectionBy<NSManagedObject>(
                "key",
                sectionIndexTransformer: { $0.flatMap { "\($0):suffix" } }
            )
            XCTAssertEqual(sectionBy.sectionKeyPath, "key")
            XCTAssertEqual(sectionBy.sectionIndexTransformer("key"), "key:suffix")
            XCTAssertNil(sectionBy.sectionIndexTransformer(nil))
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -23,6 +23,9 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
 import CoreStore
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -83,21 +84,11 @@ final class StorageInterfaceTests: XCTestCase {
        let store = SQLiteStore()
        XCTAssertEqual(type(of: store).storeType, NSSQLiteStoreType)
        XCTAssertNil(store.configuration)
-        if #available(iOS 11.0, macOS 10.13, tvOS 11.0, *) {
+        XCTAssertEqual(
-            
+            store.storeOptions as NSDictionary?,
-            XCTAssertEqual(
+            [NSSQLitePragmasOption: ["journal_mode": "WAL"],
-                store.storeOptions as NSDictionary?,
+             NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
-                [NSSQLitePragmasOption: ["journal_mode": "WAL"],
+        )
                 NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
            )
        }
        else {
            XCTAssertEqual(
                store.storeOptions as NSDictionary?,
                [NSSQLitePragmasOption: ["journal_mode": "WAL"]] as NSDictionary
            )
        }
        XCTAssertEqual(store.fileURL, SQLiteStore.defaultFileURL)
        XCTAssertTrue(store.migrationMappingProviders.isEmpty)
@@ -123,21 +114,11 @@ final class StorageInterfaceTests: XCTestCase {
        )
        XCTAssertEqual(type(of: store).storeType, NSSQLiteStoreType)
        XCTAssertEqual(store.configuration, "config1")
-        if #available(iOS 11.0, macOS 10.13, tvOS 11.0, *) {
+        XCTAssertEqual(
-            
+            store.storeOptions as NSDictionary?,
-            XCTAssertEqual(
+            [NSSQLitePragmasOption: ["journal_mode": "WAL"],
-                store.storeOptions as NSDictionary?,
+             NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
-                [NSSQLitePragmasOption: ["journal_mode": "WAL"],
+        )
                 NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
            )
        }
        else {
            XCTAssertEqual(
                store.storeOptions as NSDictionary?,
                [NSSQLitePragmasOption: ["journal_mode": "WAL"]] as NSDictionary
            )
        }
        XCTAssertEqual(store.fileURL, fileURL)
        XCTAssertEqual(store.migrationMappingProviders as! [XcodeSchemaMappingProvider], [mappingProvider])
@@ -160,21 +141,11 @@ final class StorageInterfaceTests: XCTestCase {
        )
        XCTAssertEqual(type(of: store).storeType, NSSQLiteStoreType)
        XCTAssertEqual(store.configuration, "config1")
-        if #available(iOS 11.0, macOS 10.13, tvOS 11.0, *) {
+        XCTAssertEqual(
-            
+            store.storeOptions as NSDictionary?,
-            XCTAssertEqual(
+            [NSSQLitePragmasOption: ["journal_mode": "WAL"],
-                store.storeOptions as NSDictionary?,
+             NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
-                [NSSQLitePragmasOption: ["journal_mode": "WAL"],
+        )
                 NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
            )
        }
        else {
            XCTAssertEqual(
                store.storeOptions as NSDictionary?,
                [NSSQLitePragmasOption: ["journal_mode": "WAL"]] as NSDictionary
            )
        }
        XCTAssertEqual(store.fileURL.deletingLastPathComponent(), SQLiteStore.defaultRootDirectory)
        XCTAssertEqual(store.fileURL.lastPathComponent, fileName)
@@ -209,21 +180,11 @@ final class StorageInterfaceTests: XCTestCase {
        let store = SQLiteStore.legacy()
        XCTAssertEqual(type(of: store).storeType, NSSQLiteStoreType)
        XCTAssertNil(store.configuration)
-        if #available(iOS 11.0, macOS 10.13, tvOS 11.0, *) {
+        XCTAssertEqual(
-            
+            store.storeOptions as NSDictionary?,
-            XCTAssertEqual(
+            [NSSQLitePragmasOption: ["journal_mode": "WAL"],
-                store.storeOptions as NSDictionary?,
+             NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
-                [NSSQLitePragmasOption: ["journal_mode": "WAL"],
+        )
                 NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
            )
        }
        else {
            XCTAssertEqual(
                store.storeOptions as NSDictionary?,
                [NSSQLitePragmasOption: ["journal_mode": "WAL"]] as NSDictionary
            )
        }
        XCTAssertEqual(store.fileURL, SQLiteStore.legacyDefaultFileURL)
        XCTAssertTrue(store.migrationMappingProviders.isEmpty)
@@ -246,21 +207,11 @@ final class StorageInterfaceTests: XCTestCase {
        )
        XCTAssertEqual(type(of: store).storeType, NSSQLiteStoreType)
        XCTAssertEqual(store.configuration, "config1")
-        if #available(iOS 11.0, macOS 10.13, tvOS 11.0, *) {
+        XCTAssertEqual(
-            
+            store.storeOptions as NSDictionary?,
-            XCTAssertEqual(
+            [NSSQLitePragmasOption: ["journal_mode": "WAL"],
-                store.storeOptions as NSDictionary?,
+             NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
-                [NSSQLitePragmasOption: ["journal_mode": "WAL"],
+        )
                 NSBinaryStoreInsecureDecodingCompatibilityOption: true] as NSDictionary
            )
        }
        else {
            XCTAssertEqual(
                store.storeOptions as NSDictionary?,
                [NSSQLitePragmasOption: ["journal_mode": "WAL"]] as NSDictionary
            )
        }
        XCTAssertEqual(store.fileURL.deletingLastPathComponent(), SQLiteStore.legacyDefaultRootDirectory)
        XCTAssertEqual(store.fileURL.lastPathComponent, fileName)
@@ -383,8 +383,6 @@ final class TransactionTests: BaseTestCase {
        }
    }
    @available(macOS 10.12, *)
    @objc
    dynamic func test_ThatSynchronousTransactions_CanCommitWithoutWaitingForMerges() {
@@ -400,7 +398,7 @@ final class TransactionTests: BaseTestCase {
            XCTAssertFalse(monitor.hasObjects())
            var events = 0
-            let willChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorWillChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -414,7 +412,7 @@ final class TransactionTests: BaseTestCase {
                    return events == 0
                }
            )
-            let didInsertObjectExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitor:didInsertObject:toIndexPath:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -444,7 +442,7 @@ final class TransactionTests: BaseTestCase {
                    return events == 1
                }
            )
-            let didChangeExpectation = self.expectation(
+            _ = self.expectation(
                forNotification: NSNotification.Name(rawValue: "listMonitorDidChange:"),
                object: observer,
                handler: { (note) -> Bool in
@@ -622,8 +620,8 @@ final class TransactionTests: BaseTestCase {
                    }
                )
            }
            self.waitAndCheckExpectations()
        }
        self.waitAndCheckExpectations()
    }
    @objc
@@ -755,8 +753,8 @@ final class TransactionTests: BaseTestCase {
                    }
                )
            }
            self.waitAndCheckExpectations()
        }
        self.waitAndCheckExpectations()
    }
    @objc
@@ -896,8 +894,8 @@ final class TransactionTests: BaseTestCase {
                    }
                )
            }
            self.waitAndCheckExpectations()
        }
        self.waitAndCheckExpectations()
    }
    @objc
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -23,6 +23,7 @@
 //  SOFTWARE.
 //
 import CoreData
 import XCTest
@testable
@@ -67,7 +68,7 @@ final class WhereTests: XCTestCase {
    dynamic func test_ThatDynamicModelKeyPaths_CanBeCreated() {
        XCTAssertAllEqual(String(keyPath: \TestEntity1.testEntityID), "testEntityID")
-        XCTAssertAllEqual(String(keyPath: \Animal.color), "color")
+        XCTAssertAllEqual(String(keyPath: \Animal.$color), "color")
    }
    @objc
@@ -77,17 +78,10 @@ final class WhereTests: XCTestCase {
            do {
 //                let keyPathBuilder = TestEntity1.keyPathBuilder()
 //                let kp = \TestEntity1.testToOne
 //                print(keyPathBuilder.testString)
 //                print(keyPathBuilder.testToOne)
 //                print(keyPathBuilder.testToOne.testEntityID)
                XCTAssertAllEqual(
                    #keyPath(TestEntity1.testToOne.testEntityID),
                    (\TestEntity1.testToOne ~ \.testEntityID).description,
                    String(keyPath: \TestEntity1.testToOne ~ \.testEntityID)
 //                    keyPathBuilder.testToOne.testEntityID.keyPathString
                )
                XCTAssertAllEqual(
                    #keyPath(TestEntity1.testToOne.testToOne.testToManyUnordered),
@@ -104,18 +98,18 @@ final class WhereTests: XCTestCase {
                XCTAssertAllEqual(
                    "master.pets",
-                    (\Animal.master ~ \.pets).description,
+                    (\Animal.$master ~ \.$pets).description,
-                    String(keyPath: \Animal.master ~ \.pets)
+                    String(keyPath: \Animal.$master ~ \.$pets)
                )
                XCTAssertAllEqual(
                    "master.pets.species",
-                    (\Animal.master ~ \.pets ~ \.species).description,
+                    (\Animal.$master ~ \.$pets ~ \.$species).description,
-                    String(keyPath: \Animal.master ~ \.pets ~ \.species)
+                    String(keyPath: \Animal.$master ~ \.$pets ~ \.$species)
                )
                XCTAssertAllEqual(
                    "master.pets.master",
-                    (\Animal.master ~ \.pets ~ \.master).description,
+                    (\Animal.$master ~ \.$pets ~ \.$master).description,
-                    String(keyPath: \Animal.master ~ \.pets ~ \.master)
+                    String(keyPath: \Animal.$master ~ \.$pets ~ \.$master)
                )
            }
        }
@@ -138,8 +132,8 @@ final class WhereTests: XCTestCase {
                XCTAssertAllEqual(
                    "master.pets.@count",
-                    (\Animal.master ~ \.pets).count().description,
+                    (\Animal.$master ~ \.$pets).count().description,
-                    String(keyPath: (\Animal.master ~ \.pets).count())
+                    String(keyPath: (\Animal.$master ~ \.$pets).count())
                )
            }
        }
@@ -162,13 +156,13 @@ final class WhereTests: XCTestCase {
                XCTAssertAllEqual(
                    "ANY master.pets",
-                    (\Animal.master ~ \.pets).any().description,
+                    (\Animal.$master ~ \.$pets).any().description,
-                    String(keyPath: (\Animal.master ~ \.pets).any())
+                    String(keyPath: (\Animal.$master ~ \.$pets).any())
                )
                XCTAssertAllEqual(
                    "ANY master.pets.species",
-                    (\Animal.master ~ \.pets ~ \.species).any().description,
+                    (\Animal.$master ~ \.$pets ~ \.$species).any().description,
-                    String(keyPath: (\Animal.master ~ \.pets ~ \.species).any())
+                    String(keyPath: (\Animal.$master ~ \.$pets ~ \.$species).any())
                )
            }
        }
@@ -191,13 +185,13 @@ final class WhereTests: XCTestCase {
                XCTAssertAllEqual(
                    "ALL master.pets",
-                    (\Animal.master ~ \.pets).all().description,
+                    (\Animal.$master ~ \.$pets).all().description,
-                    String(keyPath: (\Animal.master ~ \.pets).all())
+                    String(keyPath: (\Animal.$master ~ \.$pets).all())
                )
                XCTAssertAllEqual(
                    "ALL master.pets.species",
-                    (\Animal.master ~ \.pets ~ \.species).all().description,
+                    (\Animal.$master ~ \.$pets ~ \.$species).all().description,
-                    String(keyPath: (\Animal.master ~ \.pets ~ \.species).all())
+                    String(keyPath: (\Animal.$master ~ \.$pets ~ \.$species).all())
                )
            }
        }
@@ -220,13 +214,13 @@ final class WhereTests: XCTestCase {
                XCTAssertAllEqual(
                    "NONE master.pets",
-                    (\Animal.master ~ \.pets).none().description,
+                    (\Animal.$master ~ \.$pets).none().description,
-                    String(keyPath: (\Animal.master ~ \.pets).none())
+                    String(keyPath: (\Animal.$master ~ \.$pets).none())
                )
                XCTAssertAllEqual(
                    "NONE master.pets.species",
-                    (\Animal.master ~ \.pets ~ \.species).none().description,
+                    (\Animal.$master ~ \.$pets ~ \.$species).none().description,
-                    String(keyPath: (\Animal.master ~ \.pets ~ \.species).none())
+                    String(keyPath: (\Animal.$master ~ \.$pets ~ \.$species).none())
                )
            }
        }
@@ -247,7 +241,7 @@ final class WhereTests: XCTestCase {
            }
            do {
-                let whereClause: Where<Animal> = (\.master ~ \.name) == dummy
+                let whereClause: Where<Animal> = (\.$master ~ \.$name) == dummy
                let predicate = NSPredicate(format: "master.name == %@", dummy)
                XCTAssertAllEqual(whereClause, Where<Animal>(predicate))
                XCTAssertAllEqual(whereClause.predicate, predicate)
@@ -265,7 +259,7 @@ final class WhereTests: XCTestCase {
            }
            do {
-                let whereClause: Where<Animal> = (\.master ~ \.spouse ~ \.name) == dummy
+                let whereClause: Where<Animal> = (\.$master ~ \.$spouse ~ \.$name) == dummy
                let predicate = NSPredicate(format: "master.spouse.name == %@", dummy)
                XCTAssertAllEqual(whereClause, Where<Animal>(predicate))
                XCTAssertAllEqual(whereClause.predicate, predicate)
@@ -283,7 +277,7 @@ final class WhereTests: XCTestCase {
            }
            do {
-                let whereClause: Where<Animal> = (\.master ~ \.pets).count() == count
+                let whereClause: Where<Animal> = (\.$master ~ \.$pets).count() == count
                let predicate = NSPredicate(format: "master.pets.@count == %d", count)
                XCTAssertAllEqual(whereClause, Where<Animal>(predicate))
                XCTAssertAllEqual(whereClause.predicate, predicate)
@@ -301,7 +295,7 @@ final class WhereTests: XCTestCase {
            }
            do {
-                let whereClause: Where<Animal> = (\.master ~ \.pets ~ \.species).any() == dummy
+                let whereClause: Where<Animal> = (\.$master ~ \.$pets ~ \.$species).any() == dummy
                let predicate = NSPredicate(format: "ANY master.pets.species == %@", dummy)
                XCTAssertAllEqual(whereClause, Where<Animal>(predicate))
                XCTAssertAllEqual(whereClause.predicate, predicate)
@@ -319,7 +313,7 @@ final class WhereTests: XCTestCase {
            }
            do {
-                let whereClause: Where<Animal> = (\.master ~ \.pets ~ \.species).all() == dummy
+                let whereClause: Where<Animal> = (\.$master ~ \.$pets ~ \.$species).all() == dummy
                let predicate = NSPredicate(format: "ALL master.pets.species == %@", dummy)
                XCTAssertAllEqual(whereClause, Where<Animal>(predicate))
                XCTAssertAllEqual(whereClause.predicate, predicate)
@@ -337,7 +331,7 @@ final class WhereTests: XCTestCase {
            }
            do {
-                let whereClause: Where<Animal> = (\.master ~ \.pets ~ \.species).none() == dummy
+                let whereClause: Where<Animal> = (\.$master ~ \.$pets ~ \.$species).none() == dummy
                let predicate = NSPredicate(format: "NONE master.pets.species == %@", dummy)
                XCTAssertAllEqual(whereClause, Where<Animal>(predicate))
                XCTAssertAllEqual(whereClause.predicate, predicate)
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1020"
+   LastUpgradeVersion = "1200"
   version = "1.3">
   <BuildAction
      parallelizeBuildables = "YES"
@@ -14,10 +14,10 @@
            buildForAnalyzing = "YES">
            <BuildableReference
               BuildableIdentifier = "primary"
-               BlueprintIdentifier = "B54AAD481AF4D26E00848AE0"
+               BlueprintIdentifier = "B5A3911824E5429200E7E8BD"
-               BuildableName = "CoreStoreDemo.app"
+               BuildableName = "Demo.app"
-               BlueprintName = "CoreStoreDemo"
+               BlueprintName = "Demo"
-               ReferencedContainer = "container:CoreStoreDemo.xcodeproj">
+               ReferencedContainer = "container:Demo.xcodeproj">
            </BuildableReference>
         </BuildActionEntry>
      </BuildActionEntries>
@@ -27,15 +27,6 @@
      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
      shouldUseLaunchSchemeArgsEnv = "YES">
      <MacroExpansion>
         <BuildableReference
            BuildableIdentifier = "primary"
            BlueprintIdentifier = "B54AAD481AF4D26E00848AE0"
            BuildableName = "CoreStoreDemo.app"
            BlueprintName = "CoreStoreDemo"
            ReferencedContainer = "container:CoreStoreDemo.xcodeproj">
         </BuildableReference>
      </MacroExpansion>
      <Testables>
      </Testables>
   </TestAction>
@@ -53,10 +44,10 @@
         runnableDebuggingMode = "0">
         <BuildableReference
            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "B54AAD481AF4D26E00848AE0"
+            BlueprintIdentifier = "B5A3911824E5429200E7E8BD"
-            BuildableName = "CoreStoreDemo.app"
+            BuildableName = "Demo.app"
-            BlueprintName = "CoreStoreDemo"
+            BlueprintName = "Demo"
-            ReferencedContainer = "container:CoreStoreDemo.xcodeproj">
+            ReferencedContainer = "container:Demo.xcodeproj">
         </BuildableReference>
      </BuildableProductRunnable>
   </LaunchAction>
@@ -70,10 +61,10 @@
         runnableDebuggingMode = "0">
         <BuildableReference
            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "B54AAD481AF4D26E00848AE0"
+            BlueprintIdentifier = "B5A3911824E5429200E7E8BD"
-            BuildableName = "CoreStoreDemo.app"
+            BuildableName = "Demo.app"
-            BlueprintName = "CoreStoreDemo"
+            BlueprintName = "Demo"
-            ReferencedContainer = "container:CoreStoreDemo.xcodeproj">
+            ReferencedContainer = "container:Demo.xcodeproj">
         </BuildableReference>
      </BuildableProductRunnable>
   </ProfileAction>
@@ -0,0 +1,70 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
 	<key>CFBundleDevelopmentRegion</key>
 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 	<key>CFBundleExecutable</key>
 	<string>$(EXECUTABLE_NAME)</string>
 	<key>CFBundleIdentifier</key>
 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
 	<key>CFBundleInfoDictionaryVersion</key>
 	<string>6.0</string>
 	<key>CFBundleName</key>
 	<string>$(PRODUCT_NAME)</string>
 	<key>CFBundlePackageType</key>
 	<string>$(PRODUCT_BUNDLE_PACKAGE_TYPE)</string>
 	<key>CFBundleShortVersionString</key>
 	<string>1.0</string>
 	<key>CFBundleVersion</key>
 	<string>1</string>
 	<key>LSRequiresIPhoneOS</key>
 	<true/>
 	<key>UIApplicationSceneManifest</key>
 	<dict>
 		<key>UIApplicationSupportsMultipleScenes</key>
 		<false/>
 		<key>UISceneConfigurations</key>
 		<dict>
 			<key>UIWindowSceneSessionRoleApplication</key>
 			<array>
 				<dict>
 					<key>UISceneConfigurationName</key>
 					<string>Default Configuration</string>
 					<key>UISceneDelegateClassName</key>
 					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
 				</dict>
 			</array>
 		</dict>
 	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>
 	<key>UIRequiredDeviceCapabilities</key>
 	<array>
 		<string>armv7</string>
 	</array>
 	<key>UIStatusBarTintParameters</key>
 	<dict>
 		<key>UINavigationBar</key>
 		<dict>
 			<key>Style</key>
 			<string>UIBarStyleDefault</string>
 			<key>Translucent</key>
 			<false/>
 		</dict>
 	</dict>
 	<key>UISupportedInterfaceOrientations</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
 	<key>UISupportedInterfaceOrientations~ipad</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
 </dict>
 </plist>
@@ -0,0 +1,42 @@
 # coding: utf-8
 task :format do
    require 'xcodeproj'
    require 'fileutils'
    project_path = 'Demo.xcodeproj'
    ignore_targets = []
    # http://www.rubydoc.info/github/CocoaPods/Xcodeproj
    project = Xcodeproj::Project.open(project_path)
    validTargets = project.targets.select { |target| target.respond_to?(:product_type) }
    validTargets.each do |target|
        if ignore_targets.include?(target.display_name)
            next
        end
        case target.product_type
        when 'com.apple.product-type.application', 'com.apple.product-type.framework'
            target.source_build_phase.files.sort! do |f1, f2|
                result = (f1.display_name.count "+") <=> (f2.display_name.count "+")
                if result != 0
                    next -result
                end
                result = (f1.display_name.count "-") <=> (f2.display_name.count "-")
                if result != 0
                    next -result
                end
                result = (f1.display_name.count ".") <=> (f2.display_name.count ".")
                if result != 0
                    next result
                end
                (f1.display_name <=> f2.display_name)
            end
        end
    end
    project.save()
 end
@@ -0,0 +1,60 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="16097.2" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
    <device id="retina6_1" orientation="portrait" appearance="light"/>
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="16087"/>
        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>
    <scenes>
        <!--View Controller-->
        <scene sceneID="EHf-IW-A2E">
            <objects>
                <viewController interfaceStyle="dark" id="01J-lp-oVM" sceneMemberID="viewController">
                    <view key="view" contentMode="scaleToFill" id="Bp2-lt-3DL">
                        <rect key="frame" x="0.0" y="0.0" width="414" height="896"/>
                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                        <subviews>
                            <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="  Copyright © 2020 John Rommel Estropia. All rights reserved." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" minimumFontSize="9" translatesAutoresizingMaskIntoConstraints="NO" id="Yn3-8H-uzI">
                                <rect key="frame" x="20" y="827" width="374" height="21"/>
                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                <nil key="textColor"/>
                                <nil key="highlightedColor"/>
                            </label>
                            <imageView userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="CoreStoreIcon" translatesAutoresizingMaskIntoConstraints="NO" id="IrK-8p-pit">
                                <rect key="frame" x="122" y="228.5" width="170" height="170"/>
                                <constraints>
                                    <constraint firstAttribute="width" secondItem="IrK-8p-pit" secondAttribute="height" multiplier="1:1" id="WaM-8F-33r"/>
                                    <constraint firstAttribute="width" constant="170" id="dlo-1N-ikz"/>
                                </constraints>
                            </imageView>
                            <label opaque="NO" clipsSubviews="YES" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="CoreStore" textAlignment="center" lineBreakMode="middleTruncation" baselineAdjustment="alignBaselines" minimumFontSize="18" translatesAutoresizingMaskIntoConstraints="NO" id="8Vu-0U-3hd">
                                <rect key="frame" x="20" y="418.5" width="374" height="57.5"/>
                                <fontDescription key="fontDescription" name="HelveticaNeue-UltraLight" family="Helvetica Neue" pointSize="50"/>
                                <nil key="textColor"/>
                                <nil key="highlightedColor"/>
                            </label>
                        </subviews>
                        <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                        <constraints>
                            <constraint firstItem="Yn3-8H-uzI" firstAttribute="leading" secondItem="Bp2-lt-3DL" secondAttribute="leading" constant="20" symbolic="YES" id="7Dq-xP-k2v"/>
                            <constraint firstItem="IrK-8p-pit" firstAttribute="centerY" secondItem="Bp2-lt-3DL" secondAttribute="centerY" multiplier="0.7" id="HUz-XL-l27"/>
                            <constraint firstItem="IrK-8p-pit" firstAttribute="centerX" secondItem="Bp2-lt-3DL" secondAttribute="centerX" id="TSf-yM-hl1"/>
                            <constraint firstAttribute="centerX" secondItem="8Vu-0U-3hd" secondAttribute="centerX" id="TX2-HT-cKs"/>
                            <constraint firstItem="Z3i-EZ-UGs" firstAttribute="bottom" secondItem="Yn3-8H-uzI" secondAttribute="bottom" constant="14" id="hAb-SJ-Qnm"/>
                            <constraint firstAttribute="centerX" secondItem="Yn3-8H-uzI" secondAttribute="centerX" id="pNf-eo-RXZ"/>
                            <constraint firstItem="8Vu-0U-3hd" firstAttribute="leading" secondItem="Bp2-lt-3DL" secondAttribute="leading" constant="20" symbolic="YES" id="pef-yD-C5e"/>
                            <constraint firstItem="8Vu-0U-3hd" firstAttribute="top" secondItem="IrK-8p-pit" secondAttribute="bottom" constant="20" id="xQP-tq-hNL"/>
                        </constraints>
                        <viewLayoutGuide key="safeArea" id="Z3i-EZ-UGs"/>
                    </view>
                </viewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
            </objects>
            <point key="canvasLocation" x="53" y="375"/>
        </scene>
    </scenes>
    <resources>
        <image name="CoreStoreIcon" width="170" height="170"/>
    </resources>
 </document>
@@ -0,0 +1,115 @@
 {
  "images" : [
    {
      "idiom" : "iphone",
      "scale" : "2x",
      "size" : "20x20"
    },
    {
      "idiom" : "iphone",
      "scale" : "3x",
      "size" : "20x20"
    },
    {
      "idiom" : "iphone",
      "scale" : "2x",
      "size" : "29x29"
    },
    {
      "idiom" : "iphone",
      "scale" : "3x",
      "size" : "29x29"
    },
    {
      "idiom" : "iphone",
      "scale" : "2x",
      "size" : "40x40"
    },
    {
      "idiom" : "iphone",
      "scale" : "3x",
      "size" : "40x40"
    },
    {
      "filename" : "Icon-60@2x.png",
      "idiom" : "iphone",
      "scale" : "2x",
      "size" : "60x60"
    },
    {
      "filename" : "Icon-60@3x-1.png",
      "idiom" : "iphone",
      "scale" : "3x",
      "size" : "60x60"
    },
    {
      "idiom" : "ipad",
      "scale" : "1x",
      "size" : "20x20"
    },
    {
      "idiom" : "ipad",
      "scale" : "2x",
      "size" : "20x20"
    },
    {
      "idiom" : "ipad",
      "scale" : "1x",
      "size" : "29x29"
    },
    {
      "idiom" : "ipad",
      "scale" : "2x",
      "size" : "29x29"
    },
    {
      "idiom" : "ipad",
      "scale" : "1x",
      "size" : "40x40"
    },
    {
      "idiom" : "ipad",
      "scale" : "2x",
      "size" : "40x40"
    },
    {
      "filename" : "Icon-76.png",
      "idiom" : "ipad",
      "scale" : "1x",
      "size" : "76x76"
    },
    {
      "filename" : "Icon-76@2x.png",
      "idiom" : "ipad",
      "scale" : "2x",
      "size" : "76x76"
    },
    {
      "filename" : "Icon-83.5@2x.png",
      "idiom" : "ipad",
      "scale" : "2x",
      "size" : "83.5x83.5"
    },
    {
      "filename" : "Mask + Oval 1 + Oval 1 + Oval 1.png",
      "idiom" : "ios-marketing",
      "scale" : "1x",
      "size" : "1024x1024"
    },
    {
      "idiom" : "car",
      "scale" : "2x",
      "size" : "60x60"
    },
    {
      "filename" : "Icon-60@3x.png",
      "idiom" : "car",
      "scale" : "3x",
      "size" : "60x60"
    }
  ],
  "info" : {
    "author" : "xcode",
    "version" : 1
  }
 }
@@ -0,0 +1,6 @@
 {
  "info" : {
    "author" : "xcode",
    "version" : 1
  }
 }
@@ -0,0 +1,15 @@
 {
  "images" : [
    {
      "filename" : "CoreStoreIcon.pdf",
      "idiom" : "universal"
    }
  ],
  "info" : {
    "author" : "xcode",
    "version" : 1
  },
  "properties" : {
    "template-rendering-intent" : "original"
  }
 }
@@ -0,0 +1,6 @@
 {
  "info" : {
    "author" : "xcode",
    "version" : 1
  }
 }
@@ -0,0 +1,33 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import UIKit
 // MARK: - AppDelegate
@UIApplicationMain
@objc final class AppDelegate: UIResponder, UIApplicationDelegate {
    // MARK: UIApplicationDelegate
    @objc dynamic func application(
        _ application: UIApplication,
        didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? = nil
    ) -> Bool {
        return true
    }
    @objc dynamic func application(
        _ application: UIApplication,
        configurationForConnecting connectingSceneSession: UISceneSession,
        options: UIScene.ConnectionOptions
    ) -> UISceneConfiguration {
        return UISceneConfiguration(
            name: "Default Configuration",
            sessionRole: connectingSceneSession.role
        )
    }
 }
@@ -0,0 +1,69 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import Foundation
 import UIKit
 import Combine
 // MARK: - ImageDownloader
 final class ImageDownloader: ObservableObject {
    // MARK: FilePrivate
    private(set) var image: UIImage?
    let url: URL?
    init(url: URL?) {
        self.url = url
        guard let url = url else {
            return
        }
        if let image = Self.cache[url] {
            self.image = image
        }
    }
    func fetchImage(completion: @escaping (UIImage) -> Void = { _ in }) {
        guard let url = url else {
            return
        }
        if let image = Self.cache[url] {
            self.objectWillChange.send()
            self.image = image
            completion(image)
            return
        }
        self.cancellable = URLSession.shared
            .dataTaskPublisher(for: url)
            .receive(on: DispatchQueue.main)
            .sink(
                receiveCompletion: { _ in },
                receiveValue: { output in
                    if let image = UIImage(data: output.data) {
                        Self.cache[url] = image
                        self.objectWillChange.send()
                        self.image = image
                        completion(image)
                    }
                }
            )
    }
    // MARK: Private
    private static var cache: [URL: UIImage] = [:]
    private var cancellable: AnyCancellable?
 }
@@ -0,0 +1,58 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import SwiftUI
 // MARK: - InstructionsView
 struct InstructionsView: View {
    // MARK: Internal
    init(_ rows: (header: String, description: String)...) {
        self.rows = rows.map({ .init(header: $0, description: $1) })
    }
    // MARK: View
    var body: some View {
        ZStack(alignment: .center) {
            RoundedRectangle(cornerRadius: 10, style: .continuous)
                .fill(Color.white)
                .shadow(color: Color(.sRGB, white: 0.5, opacity: 0.3), radius: 2, x: 1, y: 1)
            VStack(alignment: .leading, spacing: 3) {
                ForEach(self.rows, id: \.header) { row in
                    HStack(alignment: .firstTextBaseline, spacing: 5) {
                        Text(row.header)
                            .font(.callout)
                            .fontWeight(.bold)
                        Text(row.description)
                            .font(.footnote)
                    }
                }
            }
            .foregroundColor(Color(.sRGB, white: 0, opacity: 0.8))
            .padding(.horizontal, 10)
            .padding(.vertical, 4)
        }
        .fixedSize()
    }
    // MARK: Private
    private let rows: [InstructionsView.Row]
    // MARK: - Row
    struct Row: Hashable {
        // MARK: Internal
        let header: String
        let description: String
    }
 }
@@ -0,0 +1,29 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import SwiftUI
 // MARK: - LazyView
 struct LazyView<Content: View>: View {
    // MARK: Internal
    init(_ load: @escaping () -> Content) {
        self.load = load
    }
    // MARK: View
    var body: Content {
        self.load()
    }
    // MARK: Private
    private let load: () -> Content
 }
@@ -0,0 +1,71 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import SwiftUI
 // MARK: - Menu
 extension Menu {
    // MARK: - Menu.ItemView
    struct ItemView<Destination: View>: View {
        // MARK: Internal
        init(
            title: String,
            subtitle: String? = nil,
            destination: @escaping () -> Destination
        ) {
            self.title = title
            self.subtitle = subtitle
            self.destination = destination
        }
        // MARK: View
        var body: some View {
            NavigationLink(destination: LazyView(self.destination)) {
                VStack(alignment: .leading) {
                    Text(self.title)
                        .font(.headline)
                        .foregroundColor(.primary)
                    self.subtitle.map {
                        Text($0)
                            .font(.subheadline)
                            .foregroundColor(.secondary)
                    }
                }
            }
        }
        // MARK: FilePrivate
        fileprivate let title: String
        fileprivate let subtitle: String?
        fileprivate let destination: () -> Destination
    }
 }
 #if DEBUG
 struct _Demo_Menu_ItemView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        Menu.ItemView(
            title: "Item Title",
            subtitle: "A subtitle caption for this item",
            destination: {
                Color.blue
            }
        )
    }
 }
 #endif
@@ -0,0 +1,134 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import Foundation
 import SwiftUI
 // MARK: - Menu
 extension Menu {
    // MARK: - Menu.MainView
    struct MainView: View {
        // MARK: View
        var body: some View {
            NavigationView {
                List {
                    Section(header: Text("Modern (CoreStoreObject subclasses)")) {
                        Menu.ItemView(
                            title: "Placemarks",
                            subtitle: "Making changes using Transactions",
                            destination: {
                                Modern.PlacemarksDemo.MainView()
                            }
                        )
                        Menu.ItemView(
                            title: "Time Zones",
                            subtitle: "Fetching objects and Querying raw values",
                            destination: {
                                Modern.TimeZonesDemo.MainView()
                            }
                        )
                        Menu.ItemView(
                            title: "Colors (UIKit)",
                            subtitle: "Observing list changes and single-object changes using DiffableDataSources",
                            destination: {
                                Modern.ColorsDemo.MainView(
                                    listView: { listPublisher, onPaletteTapped in
                                        Modern.ColorsDemo.UIKit.ListView(
                                            listPublisher: listPublisher,
                                            onPaletteTapped: onPaletteTapped
                                        )
                                        .edgesIgnoringSafeArea(.all)
                                    },
                                    detailView: { objectPublisher in
                                        Modern.ColorsDemo.UIKit.DetailView(objectPublisher)
                                    }
                                )
                            }
                        )
                        Menu.ItemView(
                            title: "Colors (SwiftUI)",
                            subtitle: "Observing list changes and single-object changes using SwiftUI bindings",
                            destination: {
                                Modern.ColorsDemo.MainView(
                                    listView: { listPublisher, onPaletteTapped in
                                        Modern.ColorsDemo.SwiftUI.ListView(
                                            listPublisher: listPublisher,
                                            onPaletteTapped: onPaletteTapped
                                        )
                                    },
                                    detailView: { objectPublisher in
                                        Modern.ColorsDemo.SwiftUI.DetailView(objectPublisher)
                                    }
                                )
                            }
                        )
                        Menu.ItemView(
                            title: "Pokedex API",
                            subtitle: "Importing JSON data from external source",
                            destination: {
                                Modern.PokedexDemo.MainView(
                                    listView: Modern.PokedexDemo.UIKit.ListView.init
                                )
                            }
                        )
                    }
                    Section(header: Text("Classic (NSManagedObject subclasses)")) {
                        Menu.ItemView(
                            title: "Colors",
                            subtitle: "Observing list changes and single-object changes using ListMonitor",
                            destination: {
                                Classic.ColorsDemo.MainView()
                            }
                        )
                    }
                    Section(header: Text("Advanced")) {
                        Menu.ItemView(
                            title: "Accounts",
                            subtitle: "Switching between multiple persistent stores",
                            destination: { EmptyView() }
                        )
                        .disabled(true)
                        Menu.ItemView(
                            title: "Evolution",
                            subtitle: "Migrating and reverse-migrating stores",
                            destination: {
                                Advanced.EvolutionDemo.MainView()
                            }
                        )
                        Menu.ItemView(
                            title: "Logger",
                            subtitle: "Implementing a custom logger",
                            destination: { EmptyView() }
                        )
                        .disabled(true)
                    }
                }
                .listStyle(GroupedListStyle())
                .navigationBarTitle("CoreStore Demos")
                Menu.PlaceholderView()
            }
            .navigationViewStyle(DoubleColumnNavigationViewStyle())
        }
    }
 }
 #if DEBUG
 struct _Demo_Menu_MainView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        Menu.MainView()
    }
 }
 #endif
@@ -0,0 +1,44 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import Combine
 import CoreStore
 import SwiftUI
 // MARK: - Menu
 extension Menu {
    // MARK: - Menu.PlaceholderView
    struct PlaceholderView: UIViewControllerRepresentable {
        // MARK: UIViewControllerRepresentable
        typealias UIViewControllerType = UIViewController
        func makeUIViewController(context: Self.Context) -> UIViewControllerType {
            return UIStoryboard(name: "LaunchScreen", bundle: nil).instantiateInitialViewController()!
        }
        func updateUIViewController(_ uiViewController: UIViewControllerType, context: Self.Context) {}
        static func dismantleUIViewController(_ uiViewController: UIViewControllerType, coordinator: Void) {}
    }
 }
 #if DEBUG
 struct _Demo_Menu_PlaceholderView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        return Menu.PlaceholderView()
    }
 }
 #endif
@@ -0,0 +1,10 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import Foundation
 // MARK: - Menu
 enum Menu {}
@@ -0,0 +1,36 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import SwiftUI
 import UIKit
 // MARK: - SceneDelegate
@objc final class SceneDelegate: UIResponder, UIWindowSceneDelegate {
    // MARK: UIWindowSceneDelegate
    @objc dynamic var window: UIWindow?
    // MARK: UISceneDelegate
    @objc dynamic func scene(
        _ scene: UIScene,
        willConnectTo session: UISceneSession,
        options connectionOptions: UIScene.ConnectionOptions
    ) {
        guard case let scene as UIWindowScene = scene else {
            return
        }
        let window = UIWindow(windowScene: scene)
        window.rootViewController = UIHostingController(
            rootView: Menu.MainView()
        )
        self.window = window
        window.makeKeyAndVisible()
    }
 }
@@ -0,0 +1,10 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 // MARK: - Advanced
 /**
 Sample application of complex use cases
 */
 enum Advanced {}
@@ -0,0 +1,30 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 import Foundation
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    typealias CreatureType = Advanced_EvolutionDemo_CreatureType
 }
 // MARK: - Advanced.EvolutionDemo.CreatureType
 protocol Advanced_EvolutionDemo_CreatureType: DynamicObject, CustomStringConvertible {
    var dnaCode: Int64 { get set }
    static func dataSource(in dataStack: DataStack) -> Advanced.EvolutionDemo.CreaturesDataSource
    static func count(in transaction: BaseDataTransaction) throws -> Int
    static func create(in transaction: BaseDataTransaction) -> Self
    func mutate(in transaction: BaseDataTransaction)
 }
@@ -0,0 +1,168 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 import Combine
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.CreaturesDataSource
    /**
     A type-erasing adapter to support different `ListPublisher` types
     */
    final class CreaturesDataSource: ObservableObject {
        // MARK: Internal
        init<T: NSManagedObject & Advanced.EvolutionDemo.CreatureType>(
            listPublisher: ListPublisher<T>,
            dataStack: DataStack
        ) {
            self.numberOfItems = {
                listPublisher.snapshot.numberOfItems
            }
            self.itemDescriptionAtIndex = { index in
                listPublisher.snapshot[index].object?.description
            }
            self.addItems = { count in
                dataStack.perform(
                    asynchronous: { transaction in
                        let nextDNACode = try transaction.fetchCount(From<T>())
                        for offset in 0 ..< count {
                            let object = transaction.create(Into<T>())
                            object.dnaCode = .init(nextDNACode + offset)
                            object.mutate(in: transaction)
                        }
                    },
                    completion: { _ in }
                )
            }
            self.mutateItemAtIndex = { index in
                let object = listPublisher.snapshot[index]
                dataStack.perform(
                    asynchronous: { transaction in
                        object
                            .asEditable(in: transaction)?
                            .mutate(in: transaction)
                    },
                    completion: { _ in }
                )
            }
            self.deleteAllItems = {
                dataStack.perform(
                    asynchronous: { transaction in
                        try transaction.deleteAll(From<T>())
                    },
                    completion: { _ in }
                )
            }
            listPublisher.addObserver(self) { [weak self] (listPublisher) in
                self?.objectWillChange.send()
            }
        }
        init<T: CoreStoreObject & Advanced.EvolutionDemo.CreatureType>(
            listPublisher: ListPublisher<T>,
            dataStack: DataStack
        ) {
            self.numberOfItems = {
                listPublisher.snapshot.numberOfItems
            }
            self.itemDescriptionAtIndex = { index in
                listPublisher.snapshot[index].object?.description
            }
            self.addItems = { count in
                dataStack.perform(
                    asynchronous: { transaction in
                        let nextDNACode = try transaction.fetchCount(From<T>())
                        for offset in 0 ..< count {
                            let object = transaction.create(Into<T>())
                            object.dnaCode = .init(nextDNACode + offset)
                            object.mutate(in: transaction)
                        }
                    },
                    completion: { _ in }
                )
            }
            self.mutateItemAtIndex = { index in
                let object = listPublisher.snapshot[index]
                dataStack.perform(
                    asynchronous: { transaction in
                        object
                            .asEditable(in: transaction)?
                            .mutate(in: transaction)
                    },
                    completion: { _ in }
                )
            }
            self.deleteAllItems = {
                dataStack.perform(
                    asynchronous: { transaction in
                        try transaction.deleteAll(From<T>())
                    },
                    completion: { _ in }
                )
            }
            listPublisher.addObserver(self) { [weak self] (listPublisher) in
                self?.objectWillChange.send()
            }
        }
        func numberOfCreatures() -> Int {
            return self.numberOfItems()
        }
        func creatureDescription(at index: Int) -> String? {
            return self.itemDescriptionAtIndex(index)
        }
        func mutate(at index: Int) {
            self.mutateItemAtIndex(index)
        }
        func add(count: Int) {
            self.addItems(count)
        }
        func clear() {
            self.deleteAllItems()
        }
        // MARK: Private
        private let numberOfItems: () -> Int
        private let itemDescriptionAtIndex: (Int) -> String?
        private let mutateItemAtIndex: (Int) -> Void
        private let addItems: (Int) -> Void
        private let deleteAllItems: () -> Void
    }
 }
@@ -0,0 +1,99 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - AdvancedEvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - GeologicalPeriod
    enum GeologicalPeriod: RawRepresentable, CaseIterable, Hashable, CustomStringConvertible {
        // MARK: Internal
        case ageOfInvertebrates
        case ageOfFishes
        case ageOfReptiles
        case ageOfMammals
        var version: ModelVersion {
            return self.rawValue
        }
        var creatureType: Advanced.EvolutionDemo.CreatureType.Type {
            switch self {
            case .ageOfInvertebrates:
                return Advanced.EvolutionDemo.V1.Creature.self
            case .ageOfFishes:
                return Advanced.EvolutionDemo.V2.Creature.self
            case .ageOfReptiles:
                return Advanced.EvolutionDemo.V3.Creature.self
            case .ageOfMammals:
                return Advanced.EvolutionDemo.V4.Creature.self
            }
        }
        // MARK: CustomStringConvertible
        var description: String {
            switch self {
            case .ageOfInvertebrates:
                return "Invertebrates"
            case .ageOfFishes:
                return "Fishes"
            case .ageOfReptiles:
                return "Reptiles"
            case .ageOfMammals:
                return "Mammals"
            }
        }
        // MARK: RawRepresentable
        typealias RawValue = ModelVersion
        var rawValue: ModelVersion {
            switch self {
            case .ageOfInvertebrates:
                return Advanced.EvolutionDemo.V1.name
            case .ageOfFishes:
                return Advanced.EvolutionDemo.V2.name
            case .ageOfReptiles:
                return Advanced.EvolutionDemo.V3.name
            case .ageOfMammals:
                return Advanced.EvolutionDemo.V4.name
            }
        }
        init?(rawValue: ModelVersion) {
            switch rawValue {
            case Advanced.EvolutionDemo.V1.name:
                self = .ageOfInvertebrates
            case Advanced.EvolutionDemo.V2.name:
                self = .ageOfFishes
            case Advanced.EvolutionDemo.V3.name:
                self = .ageOfReptiles
            case Advanced.EvolutionDemo.V4.name:
                self = .ageOfMammals
            default:
                return nil
            }
        }
    }
 }
@@ -0,0 +1,75 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import SwiftUI
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.ItemView
    struct ItemView: View {
        // MARK: Internal
        init(description: String?, mutate: @escaping () -> Void) {
            self.description = description
            self.mutate = mutate
        }
        // MARK: View
        var body: some View {
            HStack {
                Text(self.description ?? "")
                    .font(.footnote)
                    .foregroundColor(.primary)
                Spacer()
                Button(
                    action: self.mutate,
                    label: {
                        Text("Mutate")
                            .foregroundColor(.accentColor)
                            .fontWeight(.bold)
                    }
                )
                .buttonStyle(PlainButtonStyle())
            }
            .disabled(self.description == nil)
        }
        // MARK: FilePrivate
        fileprivate let description: String?
        fileprivate let mutate: () -> Void
    }
 }
 #if DEBUG
 struct _Demo_Advanced_EvolutionDemo_ItemView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        Advanced.EvolutionDemo.ItemView(
            description: """
                dnaCode: 123
                numberOfLimbs: 4
                hasVertebrae: true
                hasHead: true
                hasTail: true
                habitat: land
                hasWings: false
                """,
            mutate: {}
        )
    }
 }
 #endif
@@ -0,0 +1,99 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 import SwiftUI
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.ListView
    struct ListView: View {
        // MARK: View
        var body: some View {
            let dataSource = self.dataSource
            return List {
                ForEach(0 ..< dataSource.numberOfCreatures(), id: \.self) { (index) in
                    Advanced.EvolutionDemo.ItemView(
                        description: dataSource.creatureDescription(at: index),
                        mutate: {
                            dataSource.mutate(at: index)
                        }
                    )
                }
            }
            .listStyle(PlainListStyle())
        }
        // MARK: Internal
        init(
            period: Advanced.EvolutionDemo.GeologicalPeriod,
            dataStack: DataStack,
            dataSource: Advanced.EvolutionDemo.CreaturesDataSource
        ) {
            self.period = period
            self.dataStack = dataStack
            self.dataSource = dataSource
        }
        // MARK: Private
        private let period: Advanced.EvolutionDemo.GeologicalPeriod
        private let dataStack: DataStack
        @ObservedObject
        private var dataSource: Advanced.EvolutionDemo.CreaturesDataSource
    }
 }
 #if DEBUG
 struct _Demo_Advanced_EvolutionDemo_ListView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        let dataStack = DataStack(
            CoreStoreSchema(
                modelVersion: Advanced.EvolutionDemo.V4.name,
                entities: [
                    Entity<Advanced.EvolutionDemo.V4.Creature>("Creature")
                ]
            )
        )
        try! dataStack.addStorageAndWait(
            SQLiteStore(fileName: "Advanced.EvolutionDemo.ListView.Preview.sqlite")
        )
        try! dataStack.perform(
            synchronous: { transaction in
                for dnaCode in 0 ..< 10 as Range<Int64> {
                    let object = transaction.create(Into<Advanced.EvolutionDemo.V4.Creature>())
                    object.dnaCode = dnaCode
                    object.mutate(in: transaction)
                }
            }
        )
        return Advanced.EvolutionDemo.ListView(
            period: .ageOfMammals,
            dataStack: dataStack,
            dataSource: Advanced.EvolutionDemo.V4.Creature.dataSource(in: dataStack)
        )
    }
 }
 #endif
@@ -0,0 +1,78 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 import SwiftUI
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.MainView
    struct MainView: View {
        // MARK: View
        var body: some View {
            let migrator = self.migrator
            let listView: AnyView
            if let current = migrator.current {
                listView = AnyView(
                    Advanced.EvolutionDemo.ListView(
                        period: current.period,
                        dataStack: current.dataStack,
                        dataSource: current.dataSource
                    )
                )
            }
            else {
                listView = AnyView(
                    Advanced.EvolutionDemo.ProgressView(progress: migrator.progress)
                )
            }
            return VStack(spacing: 0) {
                    HStack(alignment: .center, spacing: 0) {
                        Text("Age of")
                            .padding(.trailing)
                        Picker(selection: self.$migrator.currentPeriod, label: EmptyView()) {
                            ForEach(Advanced.EvolutionDemo.GeologicalPeriod.allCases, id: \.self) { period in
                                Text(period.description).tag(period)
                            }
                        }
                        .pickerStyle(SegmentedPickerStyle())
                    }
                    .padding()
                    listView
                        .edgesIgnoringSafeArea(.vertical)
                }
                .navigationBarTitle("Evolution")
                .disabled(migrator.isBusy || migrator.current == nil)
        }
        // MARK: Private
        @ObservedObject
        private var migrator: Advanced.EvolutionDemo.Migrator = .init()
    }
 }
 #if DEBUG
 struct _Demo_Advanced_EvolutionDemo_MainView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        Advanced.EvolutionDemo.MainView()
    }
 }
 #endif
@@ -0,0 +1,126 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import SwiftUI
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.ProgressView
    struct ProgressView: View {
        // MARK: Internal
        init(progress: Progress?) {
            self.progressObserver = .init(progress)
        }
        // MARK: View
        var body: some View {
            guard self.progressObserver.isMigrating else {
                return AnyView(
                    VStack(alignment: .center) {
                        Text("Preparing creatures...")
                            .padding()
                        Spacer()
                    }
                    .padding()
                )
            }
            return AnyView(
                VStack(alignment: .leading) {
                    Text("Migrating: \(self.progressObserver.localizedDescription)")
                        .font(.headline)
                        .padding([.top, .horizontal])
                    Text("Progressive step: \(self.progressObserver.localizedAdditionalDescription)")
                        .font(.subheadline)
                        .padding(.horizontal)
                    GeometryReader { geometry in
                        ZStack(alignment: .leading) {
                            RoundedRectangle(cornerRadius: 4, style: .continuous)
                                .fill(Color.gray.opacity(0.2))
                                .frame(width: geometry.size.width, height: 8)
                            RoundedRectangle(cornerRadius: 4, style: .continuous)
                                .fill(Color.blue)
                                .frame(
                                    width: geometry.size.width
                                        * self.progressObserver.fractionCompleted,
                                    height: 8
                                )
                        }
                    }
                    .fixedSize(horizontal: false, vertical: true)
                    .padding()
                    Spacer()
                }
                .padding()
            )
        }
        // MARK: FilePrivate
        @ObservedObject
        private var progressObserver: ProgressObserver
        // MARK: - ProgressObserver
        fileprivate final class ProgressObserver: ObservableObject {
            private(set) var fractionCompleted: CGFloat = 0
            private(set) var localizedDescription: String = ""
            private(set) var localizedAdditionalDescription: String = ""
            var isMigrating: Bool {
                return self.progress != nil
            }
            init(_ progress: Progress?) {
                self.progress = progress
                progress?.setProgressHandler { [weak self] (progess) in
                    guard let self = self else {
                        return
                    }
                    self.objectWillChange.send()
                    self.fractionCompleted = CGFloat(progress?.fractionCompleted ?? 0)
                    self.localizedDescription = progress?.localizedDescription ?? ""
                    self.localizedAdditionalDescription = progress?.localizedAdditionalDescription ?? ""
                }
            }
            // MARK: Private
            private let progress: Progress?
        }
    }
 }
 #if DEBUG
 struct _Demo_Advanced_EvolutionDemo_ProgressView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        let progress = Progress(totalUnitCount: 10)
        progress.completedUnitCount = 3
        return Advanced.EvolutionDemo.ProgressView(
            progress: progress
        )
    }
 }
 #endif
@@ -0,0 +1,63 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import UIKit
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V1.Creature
@objc(Advanced_EvolutionDemo_V1_Creature)
 final class Advanced_EvolutionDemo_V1_Creature: NSManagedObject, Advanced.EvolutionDemo.CreatureType {
    @NSManaged
    dynamic var dnaCode: Int64
    @NSManaged
    dynamic var numberOfFlagella: Int32
    // MARK: CustomStringConvertible
    override var description: String {
        return """
            dnaCode: \(self.dnaCode)
            numberOfFlagella: \(self.numberOfFlagella)
            """
    }
    // MARK: Advanced.EvolutionDemo.CreatureType
    static func dataSource(in dataStack: DataStack) -> Advanced.EvolutionDemo.CreaturesDataSource {
        return .init(
            listPublisher: dataStack.publishList(
                From<Advanced.EvolutionDemo.V1.Creature>()
                    .orderBy(.descending(\.dnaCode))
            ),
            dataStack: dataStack
        )
    }
    static func count(in transaction: BaseDataTransaction) throws -> Int {
        return try transaction.fetchCount(
            From<Advanced.EvolutionDemo.V1.Creature>()
        )
    }
    static func create(in transaction: BaseDataTransaction) -> Advanced.EvolutionDemo.V1.Creature {
        return transaction.create(
            Into<Advanced.EvolutionDemo.V1.Creature>()
        )
    }
    func mutate(in transaction: BaseDataTransaction) {
        self.numberOfFlagella = .random(in: 1...200)
    }
 }
@@ -0,0 +1,27 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V1
 extension Advanced.EvolutionDemo.V1 {
    // MARK: - Advanced.EvolutionDemo.V1.FromV2
    enum FromV2 {
        // MARK: Internal
        static var mapping: XcodeSchemaMappingProvider {
            return XcodeSchemaMappingProvider(
                from: Advanced.EvolutionDemo.V2.name,
                to: Advanced.EvolutionDemo.V1.name,
                mappingModelBundle: Bundle(for: Advanced.EvolutionDemo.V1.Creature.self)
            )
        }
    }
 }
@@ -0,0 +1,25 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.V1
    /**
    Namespace for V1 models (`Advanced.EvolutionDemo.GeologicalPeriod.ageOfInvertebrates`)
    */
    enum V1 {
        // MARK: Internal
        static let name: ModelVersion = "Advanced.EvolutionDemo.V1"
        typealias Creature = Advanced_EvolutionDemo_V1_Creature
    }
 }
@@ -2,9 +2,7 @@
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
-	<key>HasAskedToTakeAutomaticSnapshotBeforeSignificantChanges</key>
+	<key>_XCCurrentVersionName</key>
-	<true/>
+	<string>Advanced.EvolutionDemo.V1.xcdatamodel</string>
 	<key>SnapshotAutomaticallyBeforeSignificantChanges</key>
 	<true/>
 </dict>
 </plist>
@@ -0,0 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="16119" systemVersion="19F101" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
    <entity name="Creature" representedClassName="Advanced_EvolutionDemo_V1_Creature" syncable="YES">
        <attribute name="dnaCode" attributeType="Integer 64" defaultValueString="0" usesScalarValueType="YES"/>
        <attribute name="numberOfFlagella" attributeType="Integer 32" defaultValueString="2" usesScalarValueType="YES"/>
    </entity>
    <elements>
        <element name="Creature" positionX="-27" positionY="18" width="128" height="73"/>
    </elements>
 </model>
@@ -0,0 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="16119" systemVersion="19F101" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
    <entity name="Creature" representedClassName="Advanced_EvolutionDemo_V2_Creature" syncable="YES">
        <attribute name="dnaCode" attributeType="Integer 64" defaultValueString="0" usesScalarValueType="YES"/>
        <attribute name="hasHead" attributeType="Boolean" defaultValueString="YES" usesScalarValueType="YES"/>
        <attribute name="hasTail" attributeType="Boolean" defaultValueString="YES" usesScalarValueType="YES"/>
        <attribute name="hasVertebrae" attributeType="Boolean" defaultValueString="YES" usesScalarValueType="YES"/>
        <attribute name="numberOfFlippers" attributeType="Integer 32" defaultValueString="2" usesScalarValueType="YES"/>
    </entity>
    <elements>
        <element name="Creature" positionX="-9" positionY="36" width="128" height="118"/>
    </elements>
 </model>
@@ -0,0 +1,78 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import UIKit
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V2.Creature
@objc(Advanced_EvolutionDemo_V2_Creature)
 final class Advanced_EvolutionDemo_V2_Creature: NSManagedObject, Advanced.EvolutionDemo.CreatureType {
    @NSManaged
    dynamic var dnaCode: Int64
    @NSManaged
    dynamic var numberOfFlippers: Int32
    @NSManaged
    dynamic var hasVertebrae: Bool
    @NSManaged
    dynamic var hasHead: Bool
    @NSManaged
    dynamic var hasTail: Bool
    // MARK: CustomStringConvertible
    override var description: String {
        return """
            dnaCode: \(self.dnaCode)
            numberOfFlippers: \(self.numberOfFlippers)
            hasVertebrae: \(self.hasVertebrae)
            hasHead: \(self.hasHead)
            hasTail: \(self.hasTail)
            """
    }
    // MARK: Advanced.EvolutionDemo.CreatureType
    static func dataSource(in dataStack: DataStack) -> Advanced.EvolutionDemo.CreaturesDataSource {
        return .init(
            listPublisher: dataStack.publishList(
                From<Advanced.EvolutionDemo.V2.Creature>()
                    .orderBy(.descending(\.dnaCode))
            ),
            dataStack: dataStack
        )
    }
    static func count(in transaction: BaseDataTransaction) throws -> Int {
        return try transaction.fetchCount(
            From<Advanced.EvolutionDemo.V2.Creature>()
        )
    }
    static func create(in transaction: BaseDataTransaction) -> Advanced.EvolutionDemo.V2.Creature {
        return transaction.create(
            Into<Advanced.EvolutionDemo.V2.Creature>()
        )
    }
    func mutate(in transaction: BaseDataTransaction) {
        self.numberOfFlippers = .random(in: 1...4) * 2
        self.hasVertebrae = .random()
        self.hasHead = true
        self.hasTail = .random()
    }
 }
@@ -0,0 +1,27 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V2
 extension Advanced.EvolutionDemo.V2 {
    // MARK: - Advanced.EvolutionDemo.V2.FromV1
    enum FromV1 {
        // MARK: Internal
        static var mapping: XcodeSchemaMappingProvider {
            return XcodeSchemaMappingProvider(
                from: Advanced.EvolutionDemo.V1.name,
                to: Advanced.EvolutionDemo.V2.name,
                mappingModelBundle: Bundle(for: Advanced.EvolutionDemo.V1.Creature.self)
            )
        }
    }
 }
@@ -0,0 +1,40 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreData
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V2.FromV1MigrationPolicy
@objc(Advanced_EvolutionDemo_V2_FromV1MigrationPolicy)
 final class Advanced_EvolutionDemo_V2_FromV1MigrationPolicy: NSEntityMigrationPolicy {
    // MARK: NSEntityMigrationPolicy
    override func createDestinationInstances(
        forSource sInstance: NSManagedObject,
        in mapping: NSEntityMapping,
        manager: NSMigrationManager
    ) throws {
        try super.createDestinationInstances(
            forSource: sInstance,
            in: mapping,
            manager: manager
        )
        for dInstance in manager.destinationInstances(forEntityMappingName: mapping.name, sourceInstances: [sInstance]) {
            dInstance.setValue(
                Bool.random(),
                forKey: #keyPath(Advanced.EvolutionDemo.V2.Creature.hasVertebrae)
            )
            dInstance.setValue(
                Bool.random(),
                forKey: #keyPath(Advanced.EvolutionDemo.V2.Creature.hasTail)
            )
        }
    }
 }
@@ -0,0 +1,41 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V2
 extension Advanced.EvolutionDemo.V2 {
    // MARK: - Advanced.EvolutionDemo.V2.FromV3
    enum FromV3 {
        // MARK: Internal
        static var mapping: CustomSchemaMappingProvider {
            return CustomSchemaMappingProvider(
                from: Advanced.EvolutionDemo.V3.name,
                to: Advanced.EvolutionDemo.V2.name,
                entityMappings: [
                    .transformEntity(
                        sourceEntity: "Creature",
                        destinationEntity: "Creature",
                        transformer: { (source, createDestination) in
                            let destination = createDestination()
                            destination["dnaCode"] = source["dnaCode"]
                            destination["numberOfFlippers"] = source["numberOfLimbs"]
                            destination["hasVertebrae"] = source["hasVertebrae"]
                            destination["hasHead"] = source["hasHead"]
                            destination["hasTail"] = source["hasTail"]
                        }
                    )
                ]
            )
        }
    }
 }
@@ -0,0 +1,27 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.V2
    /**
    Namespace for V2 models (`Advanced.EvolutionDemo.GeologicalPeriod.ageOfFishes`)
    */
    enum V2 {
        // MARK: Internal
        static let name: ModelVersion = "Advanced.EvolutionDemo.V2"
        typealias Creature = Advanced_EvolutionDemo_V2_Creature
        typealias FromV1MigrationPolicy = Advanced_EvolutionDemo_V2_FromV1MigrationPolicy
    }
 }
@@ -0,0 +1,13 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="16119" systemVersion="19F101" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
    <entity name="Creature" representedClassName="Advanced_EvolutionDemo_V2_Creature" syncable="YES">
        <attribute name="dnaCode" attributeType="Integer 64" defaultValueString="0" usesScalarValueType="YES"/>
        <attribute name="hasHead" attributeType="Boolean" defaultValueString="YES" usesScalarValueType="YES"/>
        <attribute name="hasTail" attributeType="Boolean" defaultValueString="YES" usesScalarValueType="YES"/>
        <attribute name="hasVertebrae" attributeType="Boolean" defaultValueString="YES" usesScalarValueType="YES"/>
        <attribute name="numberOfFlippers" attributeType="Integer 32" defaultValueString="2" usesScalarValueType="YES"/>
    </entity>
    <elements>
        <element name="Creature" positionX="-45" positionY="0" width="128" height="118"/>
    </elements>
 </model>
@@ -0,0 +1,103 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import UIKit
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V3
 extension Advanced.EvolutionDemo.V3 {
    // MARK: - Advanced.EvolutionDemo.V3.Creature
    final class Creature: CoreStoreObject, Advanced.EvolutionDemo.CreatureType {
        // MARK: Internal
        @Field.Stored("dnaCode")
        var dnaCode: Int64 = 0
        @Field.Stored("numberOfLimbs")
        var numberOfLimbs: Int32 = 0
        @Field.Stored("hasVertebrae")
        var hasVertebrae: Bool = false
        @Field.Stored("hasHead")
        var hasHead: Bool = true
        @Field.Stored("hasTail")
        var hasTail: Bool = true
        @Field.Stored("hasWings")
        var hasWings: Bool = false
        @Field.Stored("habitat")
        var habitat: Habitat = .water
        // MARK: - Habitat
        enum Habitat: String, CaseIterable, ImportableAttributeType, FieldStorableType {
            case water = "water"
            case land = "land"
            case amphibian = "amphibian"
        }
        // MARK: CustomStringConvertible
        var description: String {
            return """
                dnaCode: \(self.dnaCode)
                numberOfLimbs: \(self.numberOfLimbs)
                hasVertebrae: \(self.hasVertebrae)
                hasHead: \(self.hasHead)
                hasTail: \(self.hasTail)
                habitat: \(self.habitat)
                hasWings: \(self.hasWings)
                """
        }
        // MARK: Advanced.EvolutionDemo.CreatureType
        static func dataSource(in dataStack: DataStack) -> Advanced.EvolutionDemo.CreaturesDataSource {
            return .init(
                listPublisher: dataStack.publishList(
                    From<Advanced.EvolutionDemo.V3.Creature>()
                        .orderBy(.descending(\.$dnaCode))
                ),
                dataStack: dataStack
            )
        }
        static func count(in transaction: BaseDataTransaction) throws -> Int {
            return try transaction.fetchCount(
                From<Advanced.EvolutionDemo.V3.Creature>()
            )
        }
        static func create(in transaction: BaseDataTransaction) -> Advanced.EvolutionDemo.V3.Creature {
            return transaction.create(
                Into<Advanced.EvolutionDemo.V3.Creature>()
            )
        }
        func mutate(in transaction: BaseDataTransaction) {
            self.numberOfLimbs = .random(in: 1...4) * 2
            self.hasVertebrae = .random()
            self.hasHead = true
            self.hasTail = .random()
            self.habitat = Habitat.allCases.randomElement()!
            self.hasWings = .random()
        }
    }
 }
@@ -0,0 +1,43 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V3
 extension Advanced.EvolutionDemo.V3 {
    // MARK: - Advanced.EvolutionDemo.V3.FromV2
    enum FromV2 {
        // MARK: Internal
        static var mapping: CustomSchemaMappingProvider {
            return CustomSchemaMappingProvider(
                from: Advanced.EvolutionDemo.V2.name,
                to: Advanced.EvolutionDemo.V3.name,
                entityMappings: [
                    .transformEntity(
                        sourceEntity: "Creature",
                        destinationEntity: "Creature",
                        transformer: { (source, createDestination) in
                            let destination = createDestination()
                            destination["dnaCode"] = source["dnaCode"]
                            destination["numberOfLimbs"] = source["numberOfFlippers"]
                            destination["hasVertebrae"] = source["hasVertebrae"]
                            destination["hasHead"] = source["hasHead"]
                            destination["hasTail"] = source["hasTail"]
                            destination["hasWings"] = Bool.random()
                            destination["habitat"] = Advanced.EvolutionDemo.V3.Creature.Habitat.allCases.randomElement()!.rawValue
                        }
                    )
                ]
            )
        }
    }
 }
@@ -0,0 +1,33 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V3
 extension Advanced.EvolutionDemo.V3 {
    // MARK: - Advanced.EvolutionDemo.V3.FromV4
    enum FromV4 {
        // MARK: Internal
        static var mapping: CustomSchemaMappingProvider {
            return CustomSchemaMappingProvider(
                from: Advanced.EvolutionDemo.V4.name,
                to: Advanced.EvolutionDemo.V3.name,
                entityMappings: [
                    .transformEntity(
                        sourceEntity: "Creature",
                        destinationEntity: "Creature",
                        transformer: CustomSchemaMappingProvider.CustomMapping.inferredTransformation(_:_:)
                    )
                ]
            )
        }
    }
 }
@@ -0,0 +1,23 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.V3
    /**
    Namespace for V3 models (`Advanced.EvolutionDemo.GeologicalPeriod.ageOfReptiles`)
    */
    enum V3 {
        // MARK: Internal
        static let name: ModelVersion = "Advanced.EvolutionDemo.V3"
    }
 }
@@ -0,0 +1,100 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import UIKit
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V4
 extension Advanced.EvolutionDemo.V4 {
    // MARK: - Advanced.EvolutionDemo.V4.Creature
    final class Creature: CoreStoreObject, Advanced.EvolutionDemo.CreatureType {
        // MARK: Internal
        @Field.Stored("dnaCode")
        var dnaCode: Int64 = 0
        @Field.Stored("numberOfLimbs")
        var numberOfLimbs: Int32 = 0
        @Field.Stored("hasVertebrae")
        var hasVertebrae: Bool = false
        @Field.Stored("hasHead")
        var hasHead: Bool = true
        @Field.Stored("hasTail")
        var hasTail: Bool = false
        @Field.Stored("hasWings")
        var hasWings: Bool = false
        typealias Habitat = Advanced.EvolutionDemo.V3.Creature.Habitat
        @Field.Stored("habitat")
        var habitat: Habitat = .water
        @Field.Stored("isWarmBlooded")
        var isWarmBlooded: Bool = true
        // MARK: CustomStringConvertible
        var description: String {
            return """
                dnaCode: \(self.dnaCode)
                numberOfLimbs: \(self.numberOfLimbs)
                hasVertebrae: \(self.hasVertebrae)
                hasHead: \(self.hasHead)
                hasTail: \(self.hasTail)
                habitat: \(self.habitat)
                hasWings: \(self.hasWings)
                """
        }
        // MARK: Advanced.EvolutionDemo.CreatureType
        static func dataSource(in dataStack: DataStack) -> Advanced.EvolutionDemo.CreaturesDataSource {
            return .init(
                listPublisher: dataStack.publishList(
                    From<Advanced.EvolutionDemo.V4.Creature>()
                        .orderBy(.descending(\.$dnaCode))
                ),
                dataStack: dataStack
            )
        }
        static func count(in transaction: BaseDataTransaction) throws -> Int {
            return try transaction.fetchCount(
                From<Advanced.EvolutionDemo.V4.Creature>()
            )
        }
        static func create(in transaction: BaseDataTransaction) -> Advanced.EvolutionDemo.V4.Creature {
            return transaction.create(
                Into<Advanced.EvolutionDemo.V4.Creature>()
            )
        }
        func mutate(in transaction: BaseDataTransaction) {
            self.numberOfLimbs = .random(in: 1...4) * 2
            self.hasVertebrae = .random()
            self.hasHead = true
            self.hasTail = .random()
            self.habitat = Habitat.allCases.randomElement()!
            self.hasWings = .random()
            self.isWarmBlooded = .random()
        }
    }
 }
@@ -0,0 +1,44 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo.V4
 extension Advanced.EvolutionDemo.V4 {
    // MARK: - Advanced.EvolutionDemo.V4.FromV3
    enum FromV3 {
        // MARK: Internal
        static var mapping: CustomSchemaMappingProvider {
            return CustomSchemaMappingProvider(
                from: Advanced.EvolutionDemo.V3.name,
                to: Advanced.EvolutionDemo.V4.name,
                entityMappings: [
                    .transformEntity(
                        sourceEntity: "Creature",
                        destinationEntity: "Creature",
                        transformer: { (source, createDestination) in
                            let destination = createDestination()
                            destination.enumerateAttributes { (destinationAttribute, sourceAttribute) in
                                if let sourceAttribute = sourceAttribute {
                                    destination[destinationAttribute] = source[sourceAttribute]
                                }
                            }
                            destination["isWarmBlooded"] = Bool.random()
                        }
                    )
                ]
            )
        }
    }
 }
@@ -0,0 +1,23 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.V4
    /**
    Namespace for V3 models (`Advanced.EvolutionDemo.GeologicalPeriod.ageOfMammals`)
    */
    enum V4 {
        // MARK: Internal
        static let name: ModelVersion = "Advanced.EvolutionDemo.V4"
    }
 }
@@ -0,0 +1,24 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 // MARK: - Advanced
 extension Advanced {
    // MARK: - Advanced.EvolutionDemo
    /**
     Sample execution of progressive migrations. This example demonstrates the following concepts:
     - How to inspect the current model version of the store (if it exists)
     - How to do two-way migration chains (upgrades + downgrades)
     - How to support multiple versions of the model on the same app
     - How to migrate between `NSManagedObject` schema (`xcdatamodel` files) and `CoreStoreObject` schema.
     - How to use `XcodeSchemaMappingProvider`s for `NSManagedObject` stores, and `CustomSchemaMappingProvider`s for `CoreStoreObject` stores
     - How to manage migration models using namespacing technique
     Note that ideally, your app should be supporting just the latest version of the model, and provide one-way progressive migrations from all the earlier versions.
     */
    enum EvolutionDemo {}
 }
@@ -0,0 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="16119" systemVersion="19F101" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
    <entity name="Creature" representedClassName="Advanced_EvolutionDemo_V1_Creature" syncable="YES" codeGenerationType="class">
        <attribute name="dnaCode" attributeType="Integer 64" defaultValueString="0" usesScalarValueType="YES"/>
        <attribute name="numberOfFlagella" attributeType="Integer 32" defaultValueString="0" usesScalarValueType="YES"/>
    </entity>
    <elements>
        <element name="Creature" positionX="-36" positionY="9" width="128" height="73"/>
    </elements>
 </model>
@@ -0,0 +1,10 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <model type="com.apple.IDECoreDataModeler.DataModel" documentVersion="1.0" lastSavedToolsVersion="16119" systemVersion="19F101" minimumToolsVersion="Automatic" sourceLanguage="Swift" userDefinedModelVersionIdentifier="">
    <entity name="Creature" representedClassName="Advanced_EvolutionDemo_V1_Creature" syncable="YES" codeGenerationType="class">
        <attribute name="dnaCode" attributeType="Integer 64" defaultValueString="0" usesScalarValueType="YES"/>
        <attribute name="numberOfFlagella" attributeType="Integer 32" defaultValueString="0" usesScalarValueType="YES"/>
    </entity>
    <elements>
        <element name="Creature" positionX="-36" positionY="9" width="128" height="73"/>
    </elements>
 </model>
@@ -0,0 +1,260 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 import Foundation
 import Combine
 // MARK: - Advanced.EvolutionDemo
 extension Advanced.EvolutionDemo {
    // MARK: - Advanced.EvolutionDemo.Migrator
    final class Migrator: ObservableObject {
        /**
         ⭐️ Sample 1: Creating a complex `DataStack` that contains all schema histories. The `exactCurrentModelVersion` will specify the target version (if required), and `migrationChain` will provide the upgrade/downgrade progressive migration path.
         */
        private func createDataStack(
            exactCurrentModelVersion: ModelVersion?,
            migrationChain: MigrationChain
        ) -> DataStack {
            let xcodeV1ToV2ModelSchema = XcodeDataModelSchema.from(
                modelName: "Advanced.EvolutionDemo.V1",
                bundle: Bundle(for: Advanced.EvolutionDemo.V1.Creature.self)
            )
            return DataStack(
                schemaHistory: SchemaHistory(
                    allSchema: xcodeV1ToV2ModelSchema.allSchema
                    + [
                        CoreStoreSchema(
                            modelVersion: Advanced.EvolutionDemo.V3.name,
                            entities: [
                                Entity<Advanced.EvolutionDemo.V3.Creature>("Creature")
                            ]
                        ),
                        CoreStoreSchema(
                            modelVersion: Advanced.EvolutionDemo.V4.name,
                            entities: [
                                Entity<Advanced.EvolutionDemo.V4.Creature>("Creature")
                            ]
                        )
                    ],
                    migrationChain: migrationChain,
                    exactCurrentModelVersion: exactCurrentModelVersion
                )
            )
        }
        /**
         ⭐️ Sample 2: Creating a complex `SQLiteStore` that contains all schema mappings for both upgrade and downgrade cases.
         */
        private func accessSQLiteStore() -> SQLiteStore {
            let upgradeMappings: [SchemaMappingProvider] = [
                Advanced.EvolutionDemo.V2.FromV1.mapping,
                Advanced.EvolutionDemo.V3.FromV2.mapping,
                Advanced.EvolutionDemo.V4.FromV3.mapping
            ]
            let downgradeMappings: [SchemaMappingProvider] = [
                Advanced.EvolutionDemo.V3.FromV4.mapping,
                Advanced.EvolutionDemo.V2.FromV3.mapping,
                Advanced.EvolutionDemo.V1.FromV2.mapping,
            ]
            return SQLiteStore(
                fileName: "Advanced.EvolutionDemo.sqlite",
                configuration: nil,
                migrationMappingProviders: upgradeMappings + downgradeMappings,
                localStorageOptions: []
            )
        }
        /**
         ⭐️ Sample 3: Find the model version used by an existing `SQLiteStore`, or just return the latest version if the store is not created yet.
         */
        private func findCurrentVersion() -> ModelVersion {
            let allVersions = Advanced.EvolutionDemo.GeologicalPeriod.allCases
                .map({ $0.version })
            // Since we are only interested in finding current version, we'll assume an upgrading `MigrationChain`
            let dataStack = self.createDataStack(
                exactCurrentModelVersion: nil,
                migrationChain: MigrationChain(allVersions)
            )
            let migrations = try! dataStack.requiredMigrationsForStorage(
                self.accessSQLiteStore()
            )
            // If no migrations are needed, it means either the store is not created yet, or the store is already at the latest model version. In either case, we already know that the store will use the latest version
            return migrations.first?.sourceVersion
                ?? allVersions.last!
        }
        // MARK: Internal
        var currentPeriod: Advanced.EvolutionDemo.GeologicalPeriod = Advanced.EvolutionDemo.GeologicalPeriod.allCases.last! {
            didSet {
                self.selectModelVersion(self.currentPeriod)
            }
        }
        private(set) var current: (
            period: Advanced.EvolutionDemo.GeologicalPeriod,
            dataStack: DataStack,
            dataSource: Advanced.EvolutionDemo.CreaturesDataSource
        )? {
            willSet {
                self.objectWillChange.send()
            }
        }
        private(set) var isBusy: Bool = false
        private(set) var progress: Progress?
        init() {
            self.synchronizeCurrentVersion()
        }
        // MARK: Private
        private func synchronizeCurrentVersion() {
            guard
                let currentPeriod = Advanced.EvolutionDemo.GeologicalPeriod(rawValue: self.findCurrentVersion())
            else {
                self.selectModelVersion(self.currentPeriod)
                return
            }
            self.selectModelVersion(currentPeriod)
        }
        private func selectModelVersion(_ period: Advanced.EvolutionDemo.GeologicalPeriod) {
            let currentPeriod = self.current?.period
            guard period != currentPeriod else {
                return
            }
            self.objectWillChange.send()
            self.isBusy = true
            // explicitly trigger `NSPersistentStore` cleanup by deallocating the `DataStack`
            self.current = nil
            let migrationChain: MigrationChain
            switch (currentPeriod?.version, period.version) {
            case (nil, let newVersion):
                migrationChain = [newVersion]
            case (let currentVersion?, let newVersion):
                let upgradeMigrationChain = Advanced.EvolutionDemo.GeologicalPeriod.allCases
                    .map({ $0.version })
                let currentVersionIndex = upgradeMigrationChain.firstIndex(of: currentVersion)!
                let newVersionIndex = upgradeMigrationChain.firstIndex(of: newVersion)!
                migrationChain = MigrationChain(
                    currentVersionIndex > newVersionIndex
                        ? upgradeMigrationChain.reversed()
                        : upgradeMigrationChain
                )
            }
            let dataStack = self.createDataStack(
                exactCurrentModelVersion: period.version,
                migrationChain: migrationChain
            )
            let completion = { [weak self] () -> Void in
                guard let self = self else {
                    return
                }
                self.objectWillChange.send()
                defer {
                    self.isBusy = false
                }
                self.current = (
                    period: period,
                    dataStack: dataStack,
                    dataSource: period.creatureType.dataSource(in: dataStack)
                )
                self.currentPeriod = period
            }
            self.progress = dataStack.addStorage(
                self.accessSQLiteStore(),
                completion: { [weak self] result in
                    guard let self = self else {
                        return
                    }
                    guard case .success = result else {
                        self.objectWillChange.send()
                        self.isBusy = false
                        return
                    }
                    if self.progress == nil {
                        self.spawnCreatures(in: dataStack, period: period, completion: completion)
                    }
                    else {
                        completion()
                    }
                }
            )
        }
        private func spawnCreatures(
            in dataStack: DataStack,
            period: Advanced.EvolutionDemo.GeologicalPeriod,
            completion: @escaping () -> Void
        ) {
            dataStack.perform(
                asynchronous: { (transaction) in
                    let creatureType = period.creatureType
                    for dnaCode in try creatureType.count(in: transaction) ..< 10000 {
                        let object = creatureType.create(in: transaction)
                        object.dnaCode = Int64(dnaCode)
                        object.mutate(in: transaction)
                    }
                },
                completion: { _ in completion() }
            )
        }
        // MARK: - VersionMetadata
        private struct VersionMetadata {
            let label: String
            let entityType: Advanced.EvolutionDemo.CreatureType.Type
            let schemaHistory: SchemaHistory
        }
    }
 }
@@ -0,0 +1,10 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 // MARK: - Classic
 /**
 Sample usages for `NSManagedObject` subclasses
 */
 enum Classic {}
@@ -0,0 +1,79 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import Combine
 import CoreStore
 import SwiftUI
 // MARK: - Classic.ColorsDemo
 extension Classic.ColorsDemo {
    // MARK: - Classic.ColorsDemo.DetailView
    struct DetailView: UIViewControllerRepresentable {
        // MARK: Internal
        init(_ palette: ObjectMonitor<Classic.ColorsDemo.Palette>) {
            self.palette = palette
        }
        // MARK: UIViewControllerRepresentable
        typealias UIViewControllerType = Classic.ColorsDemo.DetailViewController
        func makeUIViewController(context: Self.Context) -> UIViewControllerType {
            return UIViewControllerType(self.palette)
        }
        func updateUIViewController(_ uiViewController: UIViewControllerType, context: Self.Context) {
            uiViewController.palette = self.palette
        }
        static func dismantleUIViewController(_ uiViewController: UIViewControllerType, coordinator: Void) {}
        func makeCoordinator() -> ObjectMonitor<Classic.ColorsDemo.Palette> {
            return self.palette
        }
        // MARK: Private
        private let palette: ObjectMonitor<Classic.ColorsDemo.Palette>
    }
 }
 #if DEBUG
 struct _Demo_Classic_ColorsDemo_DetailView_Preview: PreviewProvider {
    // MARK: PreviewProvider
    static var previews: some View {
        try! Classic.ColorsDemo.dataStack.perform(
            synchronous: { transaction in
                guard (try transaction.fetchCount(From<Modern.ColorsDemo.Palette>())) <= 0 else {
                    return
                }
                let palette = transaction.create(Into<Modern.ColorsDemo.Palette>())
                palette.setRandomHue()
            }
        )
        return Classic.ColorsDemo.DetailView(
            Classic.ColorsDemo.dataStack.monitorObject(
                Classic.ColorsDemo.palettesMonitor[0, 0]
            )
        )
    }
 }
 #endif
@@ -0,0 +1,36 @@
 //
 // Demo
 // Copyright © 2020 John Rommel Estropia, Inc. All rights reserved.
 import CoreStore
 // MARK: - Classic.ColorsDemo
 extension Classic.ColorsDemo {
    // MARK: - Classic.ColorsDemo.Filter
    enum Filter: String, CaseIterable {
        case all = "All Colors"
        case light = "Light Colors"
        case dark = "Dark Colors"
        func next() -> Filter {
            let allCases = Self.allCases
            return allCases[(allCases.firstIndex(of: self)! + 1) % allCases.count]
        }
        func whereClause() -> Where<Classic.ColorsDemo.Palette> {
            switch self {
            case .all: return .init()
            case .light: return (\.brightness >= 0.6)
            case .dark: return (\.brightness <= 0.4)
            }
        }
    }
 }
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
John Estropia	bf10f4668c	revert Objc method changes	2021-09-22 15:03:46 +09:00
John Estropia	a1a04aaf8a	tag refetch methods with source identifiers	2021-09-15 19:38:59 +09:00
John Estropia	4ddfa95140	added mechanism to track transaction sources	2021-09-15 14:45:13 +09:00
John Estropia	45215c7a18	WIP	2021-08-25 20:13:14 +09:00
John Estropia	d2f1656fdd	test copy-on-write for ListSnapshot	2021-08-25 09:37:20 +09:00
John Estropia	5fbb1ab09d	Merge pull request #421 from xquezme/develop Fix compound indexes for dynamic models	2021-07-20 09:26:17 +09:00
John Estropia	d0cc01877e	Merge pull request #433 from tackgyu/unset-library-type Unset library type in Swift package manifests	2021-07-19 13:35:39 +09:00
tackgyu	a434628249	Unset library type in Swift package manifests	2021-07-19 12:52:51 +09:00
John Estropia	9cc616f720	fix compiler error on Xcode 13	2021-06-19 15:49:45 +09:00
John Estropia	4534bc06f5	Add utility for DiffableDataSources to create an empty snapshot for custom list construction	2021-06-16 23:28:46 +09:00
John Estropia	798d30bbd9	allow ListPublisher and ObjectPublisher combine Publishers to cancel subscription from any thread	2021-06-13 14:36:22 +09:00
John Estropia	7938aa2447	Added fast index-based ListSnapshot mutators	2021-06-12 11:06:43 +09:00
John Estropia	dda69389eb	Fix SPM issues	2021-04-20 18:30:14 +09:00
John Estropia	b20be10a19	update Readme banner image	2021-04-11 11:39:43 +09:00
John Estropia	0ee8fbabd5	version bump, update resources	2021-04-11 11:26:02 +09:00
John Estropia	1f562b25a7	Updated README	2021-04-11 11:03:17 +09:00
Pimenov Sergey	6a2394052c	fix compound indexes for dynamic models	2021-04-04 20:12:40 -07:00
John Estropia	593c0510d3	Allow placeholder Views in ObjectReader when an object becomes nil	2021-03-13 11:25:27 +09:00
John Estropia	338e4ddc9f	Fix sig abort error	2021-03-07 17:02:09 +09:00
John Estropia	bfb1df3c40	added Publishers for `addStorage` functions	2021-03-07 16:08:19 +09:00
John Estropia	003bf897e2	Cleanup unnecessary #available branches	2021-03-07 12:01:08 +09:00
John Estropia	0b127956d3	Removed ObservableObject implementations of ListPublisher/ObjectPublisher in favor of LiveList/LiveObject and ".reactive" publishers	2021-03-07 10:38:53 +09:00
John Estropia	098e560fcc	Merge branch 'develop' of github.com:JohnEstropia/CoreStore into develop	2021-03-07 10:17:34 +09:00
John Estropia	7dbd3777ec	added sugar syntax for ForEach that removes requirement for the "id:" argument	2021-03-07 10:17:20 +09:00
John Estropia	447d8e5880	fix compile error	2021-03-03 16:59:20 +09:00
John Estropia	1f97225efa	SwiftUI and Combine utilities appledocs. Bump up to 8.0 and iOS 11.0/macOS 10.13	2021-03-01 09:14:41 +09:00
John Estropia	d13b0cfabb	update unit tests	2021-02-21 10:59:55 +09:00
John Estropia	d7b852fca4	SwiftUI utilities done (for now)	2021-02-21 10:56:27 +09:00
John Estropia	f2efe175e5	deprecate misleading API for sectionIndexTransformers	2021-02-21 10:17:58 +09:00
John Estropia	8f3a6638d8	Delete long-deprecated CoreStore namespace	2021-02-21 10:16:08 +09:00
John Estropia	f7471f56a4	Prototyping SwiftUI utilities	2021-02-16 09:12:36 +09:00
John Estropia	edd8ba55d8	fix rare duplication of uniqueID values during import when an import candidate is added by a previous insertion block	2021-01-23 16:51:45 +09:00
John Estropia	18aac84335	fix compiler error	2021-01-02 10:36:33 +09:00
John Estropia	c6be892cb0	added .where(combinedByAnd:) and .where(combinedByOr:) to help compiler with long && and \|\| chains	2021-01-02 10:00:23 +09:00
John Estropia	2cd8101987	Implement ObjectRepresentation on ObjectMonitor, ObjectPublisher, and ObjectSnapshot for future APIs	2021-01-02 09:59:15 +09:00
John Estropia	e1aed37da0	avoid using default queue qos	2020-12-26 23:45:11 +09:00
John Estropia	5de5ecee06	give opportunity for faster equating of ObjectSnapshot	2020-12-26 23:44:35 +09:00
John Estropia	9406901b28	WIP: SwiftUI utils	2020-12-26 19:21:46 +09:00
John Estropia	477f478d85	Add missing Where operators (fixes #410 )	2020-12-26 14:02:20 +09:00
John Estropia	668b5ad606	Update playground samples to use Field properties instead of old syntax	2020-12-07 14:08:05 +09:00
John Estropia	f985828f3b	cleanup	2020-11-17 18:14:23 +09:00
John Estropia	bb3bc940c2	Remove the `dataStack` SwiftUI environment key since it's prone to initialization issues	2020-11-11 16:56:20 +09:00
John Estropia	2d5bc77219	Merge branch 'master' into minIOS11 # Conflicts: # Sources/ListSnapshot.swift	2020-11-11 13:44:58 +09:00
John Estropia	a40df37192	version bump	2020-11-11 13:29:02 +09:00
John Estropia	63b3d25d78	clear warnings	2020-11-11 13:18:11 +09:00
John Estropia	74721b5c12	allow ObjectSnapshot and ObjectPublisher as parameter to Where clauses	2020-10-10 16:55:35 +09:00
John Estropia	f136549b46	prevent creation of ObjectSnapshot if object is already deleted	2020-10-09 20:14:04 +09:00
John Estropia	4ec2b2e311	Optimize ListSnapshot collection implementation	2020-10-05 23:12:17 +09:00
John Estropia	3d82ee18c7	reinclude LegacyDemo in workspace	2020-10-03 14:36:57 +09:00
John Estropia	d6eae8c091	fix podspec	2020-09-19 15:07:27 +09:00
John Estropia	6f8d86cd8f	remove xcuserdata	2020-09-19 14:59:14 +09:00
John Estropia	3b6f226389	version bump	2020-09-19 14:44:55 +09:00
John Estropia	228e4e8e1a	rename CoreStoreDemo to LegacyDemo	2020-09-19 14:32:43 +09:00
John Estropia	98a42feb95	demo cleanup	2020-09-19 12:38:09 +09:00
John Estropia	2f93ee7591	Migrations demo done	2020-09-17 23:21:41 +09:00
John Estropia	11f5cb9a05	WIP: demo	2020-09-14 09:46:47 +09:00
John Estropia	2c00fc31bc	WIP: migrations demo	2020-09-13 14:17:06 +09:00
John Estropia	2bbf6b34ea	WIP: migrations demo	2020-09-08 09:09:36 +09:00
John Estropia	8d7f282743	added demo for classic ListMonitor	2020-08-30 20:16:01 +09:00
John Estropia	007da014f8	cleanup	2020-08-30 10:24:10 +09:00
John Estropia	b26e50f777	add version lock to demo	2020-08-29 23:06:12 +09:00
John Estropia	611bc53c9a	cleanup	2020-08-29 23:05:07 +09:00
John Estropia	9d36582c10	minor fix	2020-08-29 20:06:00 +09:00
John Estropia	1c735a9228	improve Pokedex demo	2020-08-29 20:02:05 +09:00
John Estropia	1db91fcec3	make demo compilable on Xcode 11	2020-08-27 09:50:12 +09:00
John Estropia	8b3b947406	pokedex demo	2020-08-20 00:39:03 +09:00
John Estropia	2c0cadf2fa	WIP	2020-08-19 18:49:08 +09:00
John Estropia	5e536556da	fix for SR-13069	2020-08-19 11:01:12 +09:00
John Estropia	d75029f54b	WIP	2020-08-19 08:32:18 +09:00
John Estropia	204c4de1f6	use randomElement in unit test	2020-08-18 17:50:00 +09:00
John Estropia	0f3455a4a4	WIP	2020-08-18 12:05:20 +09:00
John Estropia	72f36e7237	WIP	2020-08-17 17:09:41 +09:00
John Estropia	d988daa025	WIP: new demo app	2020-08-17 09:06:25 +09:00
John Estropia	e720504855	Update README.md	2020-06-20 17:37:12 +09:00
John Estropia	ee51c5ad9c	fix readme indentations	2020-06-20 16:47:52 +09:00
John Estropia	4ac7df7364	version bump	2020-06-20 13:16:14 +09:00
John Estropia	56f873ccb3	fix readme table of contents	2020-06-20 13:12:11 +09:00
John Estropia	1f90f846f3	readme update	2020-06-20 13:07:10 +09:00
John Estropia	4a97d5a8dc	remove persistentstores during DataStack deinitialization to prevent warnings in Unit tests during teardown	2020-05-26 09:43:39 +09:00
John Estropia	0eb9b6393d	add unit testst for Field dynamic initializers	2020-05-24 10:54:16 +09:00
John Estropia	56d0ea46ea	Implement dynamic initializers for Field properties (fixes #382 )	2020-05-23 12:07:16 +09:00
John Estropia	a7568eebdb	fix comments	2020-04-15 16:49:45 +09:00
John Estropia	4049e1944a	trigger lazy initialization of ObjectPublisher observation after addObserver() (fixes #383 )	2020-04-15 16:48:42 +09:00
John Estropia	73b7fcd907	Merge branch 'prototype/propertyWrapperFields' into develop	2020-03-26 02:04:33 +09:00
John Estropia	74c1a97af4	Version bump	2020-03-26 02:04:10 +09:00
John Estropia	97f2a53124	AppleDocs for Field source files	2020-03-26 01:57:32 +09:00
John Estropia	b6db872be0	Merge branch 'prototype/propertyWrapperFields' of github.com:JohnEstropia/CoreStore into prototype/propertyWrapperFields	2020-03-25 19:00:56 +09:00
John Estropia	0d9299f900	WIP: docs	2020-03-25 14:21:49 +09:00
John Estropia	7f928dc684	docs	2020-03-19 14:12:09 +09:00
John Estropia	231e138ab0	performant access of relationship objectIDs for snapshots	2020-02-21 13:51:17 +09:00
John Estropia	361dba58c6	bypass thread checks depending on location of Field call	2020-02-21 11:52:11 +09:00
John Estropia	e1b03b4a89	fix wrong optional configuration in Field.Virtual	2020-02-21 11:20:32 +09:00
John Estropia	0df6c737c1	fix wrong optional configuration in Field.Virtual	2020-02-21 11:17:39 +09:00
John Estropia	12c5aeaaa4	safer casting	2020-02-21 10:36:28 +09:00
John Estropia	dd3fb17dd0	fix runtime issue with Fields on objects with base classes	2020-02-21 10:19:42 +09:00
John Estropia	627a5d4355	add OrderBy utilities for Field.Stored	2020-02-19 22:01:46 +09:00
John Estropia	58629bc1df	add missing predicate operator overloads	2020-02-19 13:58:14 +09:00
John Estropia	f925803b93	Create FUNDING.yml	2020-02-19 13:32:57 +09:00
John Estropia	843adf21f7	improved API for custom getters and setters in Field properties	2020-02-18 18:17:52 +09:00
John Estropia	2d1b1e0592	add Field.Coded dynamic lookups for ObjectPublisher and ObjectSnapshot	2020-02-17 18:30:18 +09:00
John Estropia	38e9878c04	Merge branch 'master' into prototype/propertyWrapperFields	2020-02-08 09:47:35 +09:00
John Estropia	8e4e308ccc	Merge branch 'prototype/propertyWrapperFields' of github.com:JohnEstropia/CoreStore into prototype/propertyWrapperFields	2020-02-06 09:33:15 +09:00
John Estropia	f0f4049798	renamed Field.Computed to Field.Virtual to distinguish from Field.Derived	2020-02-06 09:33:08 +09:00
John Estropia	c20fe4ac17	add Field.Relationship dynamicMemberLookups	2020-02-05 11:03:57 +09:00
John Estropia	e9c3312612	Fix default encoders for top-level values	2020-01-21 17:03:12 +09:00
John Estropia	92ad895044	Field.Relationship propertyWrapper	2020-01-20 17:13:01 +09:00
John Estropia	bcc2d9def3	Field.Coded implementations for transformable attributes	2020-01-18 16:22:06 +09:00
John Estropia	43f61359da	prototype new Fields as propertyWrappers (Swift 5.2 above only)	2020-01-15 18:29:58 +09:00
		`@@ -0,0 +1,3 @@`
							`# These are supported funding model platforms`

							`github: [JohnEstropia]`