element-ios/Riot/Utils/DictionaryEncodable.swift

34 lines
1023 B
Swift

//
// Copyright 2022-2024 New Vector Ltd.
//
// SPDX-License-Identifier: AGPL-3.0-only
// Please see LICENSE in the repository root for full details.
//
import Foundation
/// A type that can encode itself into a `[String: Any]` JSON dictionary.
protocol DictionaryEncodable: Encodable { }
enum DictionaryEncodableError: Error {
/// The value returned an unexpected type from `JSONSerialization`.
case typeError
}
extension DictionaryEncodable {
/// Returns self encoded as a JSON dictionary.
func dictionary() throws -> [String: Any] {
let jsonData = try JSONEncoder().encode(self)
let object = try JSONSerialization.jsonObject(with: jsonData)
guard let dictionary = object as? [String: Any] else {
MXLog.error("[DictionaryEncodable] Unexpected type decoded, expected a Dictionary.", context: [
"type": type(of: object)
])
throw DictionaryEncodableError.typeError
}
return dictionary
}
}