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/*
This source file is part of the Swift.org open source project
Copyright (c) 2021 Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See https://swift.org/LICENSE.txt for license information
See https://swift.org/CONTRIBUTORS.txt for Swift project authors
*/
import Foundation
extension Message: Codable {
enum CodingKeys: String, CodingKey {
case type
case data
case identifier
}
public init(from decoder: Decoder) throws {
let container = try decoder.container(keyedBy: CodingKeys.self)
self.type = try container.decode(MessageType.self, forKey: .type)
self.identifier = try container.decodeIfPresent(String.self, forKey: .identifier)
self.data = try decodeDataIfPresent(for: type, from: container)
}
public func encode(to encoder: Encoder) throws {
var container = encoder.container(keyedBy: CodingKeys.self)
try container.encode(type, forKey: .type)
try container.encode(data, forKey: .data)
try container.encode(identifier, forKey: .identifier)
}
}
fileprivate func decodeDataIfPresent(
for type: MessageType,
from container: KeyedDecodingContainer<Message.CodingKeys>
) throws -> AnyCodable? {
switch type {
case .codeColors:
return AnyCodable(try container.decodeIfPresent(CodeColors.self, forKey: .data))
default:
return AnyCodable(try container.decodeIfPresent(AnyCodable.self, forKey: .data))
}
}
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