51 lines
2.0 KiB
Swift
51 lines
2.0 KiB
Swift
//
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// Result.swift
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// Kingfisher
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//
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// Created by onevcat on 2018/09/22.
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//
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// Copyright (c) 2019 Wei Wang <onevcat@gmail.com>
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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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import Foundation
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// These helper methods are not public since we do not want them to be exposed or cause any conflicting.
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// However, they are just wrapper of `ResultUtil` static methods.
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extension Result where Failure: Error {
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/// Evaluates the given transform closures to create a single output value.
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///
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/// - Parameters:
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/// - onSuccess: A closure that transforms the success value.
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/// - onFailure: A closure that transforms the error value.
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/// - Returns: A single `Output` value.
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func match<Output>(
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onSuccess: (Success) -> Output,
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onFailure: (Failure) -> Output) -> Output
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{
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switch self {
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case let .success(value):
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return onSuccess(value)
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case let .failure(error):
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return onFailure(error)
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}
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}
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}
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