mirror of
https://github.com/JohnEstropia/CoreStore.git
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90 lines
2.6 KiB
Swift
90 lines
2.6 KiB
Swift
//
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// VersionLock.swift
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// CoreStore
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//
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// Copyright © 2017 John Rommel Estropia
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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 all
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// 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 THE
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// SOFTWARE.
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//
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import Foundation
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// MARK: - VersionLock
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public struct VersionLock: ExpressibleByDictionaryLiteral, Equatable {
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public typealias HashElement = UInt64
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public let hashesByEntityName: [EntityName: Data]
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public init(_ intArrayByEntityName: [EntityName: [HashElement]]) {
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self.init(keyValues: intArrayByEntityName.map({ $0 }))
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}
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// MARK: ExpressibleByDictionaryLiteral
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public typealias Key = EntityName
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public typealias Value = [HashElement]
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public init(dictionaryLiteral elements: (EntityName, [HashElement])...) {
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self.init(keyValues: elements)
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}
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// MARK: Equatable
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public static func == (lhs: VersionLock, rhs: VersionLock) -> Bool {
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return lhs.hashesByEntityName == rhs.hashesByEntityName
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}
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// MARK: Internal
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internal init(entityVersionHashesByName: [String: Data]) {
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self.hashesByEntityName = entityVersionHashesByName
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}
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// MARK: Private
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private init(keyValues: [(EntityName, [HashElement])]) {
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var hashesByEntityName: [EntityName: Data] = [:]
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for (entityName, intArray) in keyValues {
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hashesByEntityName[entityName] = Data(
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buffer: UnsafeBufferPointer(
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start: intArray,
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count: intArray.count
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)
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)
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}
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self.hashesByEntityName = hashesByEntityName
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}
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}
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