David Jennes
30 lines
829 B
Swift
30 lines
829 B
Swift
//
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// SwiftGen
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// Copyright © 2022 SwiftGen
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// MIT Licence
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//
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import Foundation
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// Based on https://github.com/realm/SwiftLint/blob/0.39.2/Source/SwiftLintFramework/Extensions/Array+SwiftLint.swift
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extension Array {
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func parallelFlatMap<T>(transform: (Element) -> [T]) -> [T] {
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parallelMap(transform: transform).flatMap { $0 }
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}
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func parallelCompactMap<T>(transform: (Element) -> T?) -> [T] {
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parallelMap(transform: transform).compactMap { $0 }
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}
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func parallelMap<T>(transform: (Element) -> T) -> [T] {
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var result = ContiguousArray<T?>(repeating: nil, count: count)
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return result.withUnsafeMutableBufferPointer { buffer in
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DispatchQueue.concurrentPerform(iterations: buffer.count) { idx in
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buffer[idx] = transform(self[idx])
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}
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return buffer.compactMap { $0 }
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}
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}
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}
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