49 lines
2.0 KiB
Swift
49 lines
2.0 KiB
Swift
//
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// Copyright (c) 2018 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 RxCocoa
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public extension SharedSequence {
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/// Replaces all emitted elements with new one.
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///
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/// - Parameter value: A new element.
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/// - Returns: An observable sequence whose elements are equals to passed value.
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func replace<T>(with value: T) -> SharedSequence<SharingStrategy, T> {
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map { _ in value } // swiftlint:disable:this unused_map_parameter
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}
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/// Replaces all emitted elements with Void.
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///
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/// - Returns: An observable sequence whose elements are equals to Void.
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func asVoid() -> SharedSequence<SharingStrategy, Void> {
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replace(with: Void())
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}
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/// Cast all emitted elements to optional type.
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///
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/// - Returns: An observable sequence whose elements are equals to optional type of element.
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func asOptional() -> SharedSequence<SharingStrategy, Element?> {
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map { $0 }
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}
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}
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