62 lines
2.5 KiB
Swift
62 lines
2.5 KiB
Swift
//
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// Copyright (c) 2022 Touch Instinct
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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
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// all 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
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// THE SOFTWARE.
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//
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import Foundation
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public extension CodingUserInfoKey {
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static var dateFormattersReusePool: Self? {
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.init(rawValue: "dateFormattersReusePool")
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}
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static var iso8601DateFormattersReusePool: Self? {
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.init(rawValue: "iso8601DateFormattersReusePool")
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}
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}
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private enum CodingUserInfoError: Error {
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case valueNotFound(CodingUserInfoKey?)
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case typeMismatch(Any.Type, Any.Type)
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}
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public extension Dictionary where Key == CodingUserInfoKey {
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func dateFormattersReusePool<T>(forKey key: CodingUserInfoKey?) throws -> T {
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guard let reusePool = self[key] else {
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throw CodingUserInfoError.valueNotFound(key)
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}
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guard let requestedReusePool = reusePool as? T else {
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throw CodingUserInfoError.typeMismatch(type(of: reusePool), T.self)
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}
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return requestedReusePool
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}
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func dateFormatter<Format: DateFormat>(for dateFormat: Format) throws -> DateFormatter {
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let reusePool = try dateFormattersReusePool(forKey: .dateFormattersReusePool) as DateFormattersReusePool
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return reusePool.dateFormatter(for: dateFormat)
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}
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func iso8601DateFormatter(for options: ISO8601DateFormatter.Options) throws -> ISO8601DateFormatter {
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let reusePool = try dateFormattersReusePool(forKey: .iso8601DateFormattersReusePool) as ISO8601DateFormattersReusePool
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return reusePool.dateFormatter(for: options)
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}
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}
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