mirror of
https://github.com/JohnEstropia/CoreStore.git
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107 lines
3.5 KiB
Swift
107 lines
3.5 KiB
Swift
//
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// CSSectionBy.swift
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// CoreStore
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//
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// Copyright © 2018 John Rommel Estropia
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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import Foundation
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import CoreData
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// MARK: - CSSectionBy
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/**
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The `CSSectionBy` serves as the Objective-C bridging type for `SectionBy`.
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- SeeAlso: `SectionBy`
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*/
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@available(macOS 10.12, *)
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@objc
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public final class CSSectionBy: NSObject {
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/**
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Initializes a `CSSectionBy` clause with the key path to use to group `CSListMonitor` objects into sections
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- parameter sectionKeyPath: the key path to use to group the objects into sections
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- returns: a `CSSectionBy` clause with the key path to use to group `CSListMonitor` objects into sections
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*/
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@objc
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public static func keyPath(_ sectionKeyPath: KeyPathString) -> CSSectionBy {
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return self.init(SectionBy<NSManagedObject>(sectionKeyPath))
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}
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/**
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Initializes a `CSSectionBy` clause with the key path to use to group `CSListMonitor` objects into sections, and a closure to transform the value for the key path to an appropriate section name
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- parameter sectionKeyPath: the key path to use to group the objects into sections
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- parameter sectionIndexTransformer: a closure to transform the value for the key path to an appropriate section name
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- returns: a `CSSectionBy` clause with the key path to use to group `CSListMonitor` objects into sections
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*/
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@objc
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public static func keyPath(_ sectionKeyPath: KeyPathString, sectionIndexTransformer: @escaping (_ sectionName: String?) -> String?) -> CSSectionBy {
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return self.init(SectionBy<NSManagedObject>(sectionKeyPath, sectionIndexTransformer))
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}
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// MARK: NSObject
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public override var description: String {
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return "(\(String(reflecting: type(of: self)))) \(self.bridgeToSwift.coreStoreDumpString)"
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}
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// MARK: CoreStoreObjectiveCType
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public let bridgeToSwift: SectionBy<NSManagedObject>
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public init<D>(_ swiftValue: SectionBy<D>) {
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self.bridgeToSwift = swiftValue.downcast()
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super.init()
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}
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}
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// MARK: - SectionBy
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@available(macOS 10.12, *)
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extension SectionBy {
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// MARK: CoreStoreSwiftType
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public var bridgeToObjectiveC: CSSectionBy {
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return CSSectionBy(self)
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}
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// MARK: FilePrivate
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fileprivate func downcast() -> SectionBy<NSManagedObject> {
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return SectionBy<NSManagedObject>(self.sectionKeyPath, self.sectionIndexTransformer)
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}
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}
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