43 lines
1.4 KiB
Swift
43 lines
1.4 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Foundation
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/// A type that can encode itself into a `[String: Any]` JSON dictionary.
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protocol DictionaryEncodable: Encodable { }
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enum DictionaryEncodableError: Error {
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/// The value returned an unexpected type from `JSONSerialization`.
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case typeError
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}
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extension DictionaryEncodable {
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/// Returns self encoded as a JSON dictionary.
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func dictionary() throws -> [String: Any] {
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let jsonData = try JSONEncoder().encode(self)
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let object = try JSONSerialization.jsonObject(with: jsonData)
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guard let dictionary = object as? [String: Any] else {
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MXLog.error("[DictionaryEncodable] Unexpected type decoded, expected a Dictionary.", context: [
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"type": type(of: object)
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])
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throw DictionaryEncodableError.typeError
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}
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return dictionary
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}
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}
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