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| // | ||
| // The MIT License (MIT) | ||
| // | ||
| // Copyright (c) 2015-present Badoo Trading Limited. | ||
| // | ||
| // 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. | ||
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| import Foundation | ||
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| public final class Cache<Key: Hashable, Value> { | ||
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| private let cache = NSCache<AnyObject, AnyObject>() | ||
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| public init() {} | ||
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| subscript(key: Key) -> Value? { | ||
| get { | ||
| return self.cache.object(forKey: key as AnyObject) as! Value? | ||
| } | ||
| set { | ||
| if let value = newValue { | ||
| self.cache.setObject(value as AnyObject, forKey: key as AnyObject) | ||
| } else { | ||
| self.cache.removeObject(forKey: key as AnyObject) | ||
| } | ||
| } | ||
| } | ||
| } |