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//
// Kingfisher.swift
// Kingfisher
//
// Created by Wei Wang on 16/9/14.
//
// Copyright (c) 2019 Wei Wang <onevcat@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import Foundation
import ImageIO
#if os(macOS)
import AppKit
public typealias KFCrossPlatformImage = NSImage
public typealias KFCrossPlatformView = NSView
public typealias KFCrossPlatformColor = NSColor
public typealias KFCrossPlatformImageView = NSImageView
public typealias KFCrossPlatformButton = NSButton
#else
import UIKit
public typealias KFCrossPlatformImage = UIImage
public typealias KFCrossPlatformColor = UIColor
#if !os(watchOS)
public typealias KFCrossPlatformImageView = UIImageView
public typealias KFCrossPlatformView = UIView
public typealias KFCrossPlatformButton = UIButton
#else
import WatchKit
#endif
#endif
/// Wrapper for Kingfisher compatible types. This type provides an extension point for
/// connivence methods in Kingfisher.
public struct KingfisherWrapper<Base> {
public let base: Base
public init(_ base: Base) {
self.base = base
}
}
/// Represents an object type that is compatible with Kingfisher. You can use `kf` property to get a
/// value in the namespace of Kingfisher.
public protocol KingfisherCompatible: AnyObject { }
/// Represents a value type that is compatible with Kingfisher. You can use `kf` property to get a
/// value in the namespace of Kingfisher.
public protocol KingfisherCompatibleValue {}
extension KingfisherCompatible {
/// Gets a namespace holder for Kingfisher compatible types.
public var kf: KingfisherWrapper<Self> {
get { return KingfisherWrapper(self) }
set { }
}
}
extension KingfisherCompatibleValue {
/// Gets a namespace holder for Kingfisher compatible types.
public var kf: KingfisherWrapper<Self> {
get { return KingfisherWrapper(self) }
set { }
}
}
extension KFCrossPlatformImage: KingfisherCompatible { }
#if !os(watchOS)
extension KFCrossPlatformImageView: KingfisherCompatible { }
extension KFCrossPlatformButton: KingfisherCompatible { }
#else
extension WKInterfaceImage: KingfisherCompatible { }
#endif
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