wehub-resource-sync
e84fb4a79e
container project - merge build / Invoke build (push) Successful in 1s
71 lines
2.8 KiB
Swift
71 lines
2.8 KiB
Swift
//===----------------------------------------------------------------------===//
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// Copyright © 2026 Apple Inc. and the container project authors.
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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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// https://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 provides custom decoding logic for a specific `Decodable` type
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/// when using `ConfigSnapshotDecoder`. This enables modification of `Decodable` behavior
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/// for types that already conform to `Decodable`, such as `URL` and `Measurement`.
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public protocol ConfigDecodingStrategy: Sendable {
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associatedtype Value: Decodable
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func decode(from decoder: Decoder) throws -> Value
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}
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/// A type that provides custom encoding logic for a specific `Encodable` type.
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/// This enables modification of `Encodable` behavior for types that already conform
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// to `Encodable`, such as `URL` and `Measurement`.
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public protocol ConfigEncodingStrategy: Sendable {
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associatedtype Value: Encodable
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func encode(_ value: Value, to encoder: Encoder) throws
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}
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/// A type that provides both custom encoding and decoding for the same type. Similar to `Codable`
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public typealias ConfigCodingStrategy = ConfigDecodingStrategy & ConfigEncodingStrategy
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/// Decodes a `URL` from a string value. e.g. "https://www.apple.com"
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public struct URLConfigDecodingStrategy: ConfigDecodingStrategy {
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public init() {}
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public func decode(from decoder: Decoder) throws -> URL {
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let container = try decoder.singleValueContainer()
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let string = try container.decode(String.self)
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guard let url = URL(string: string) else {
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throw DecodingError.dataCorrupted(
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DecodingError.Context(
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codingPath: decoder.codingPath,
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debugDescription: "Invalid URL string: \"\(string)\"."
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)
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)
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}
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return url
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}
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}
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// A type erased version of `ConfigDecodingStrategy`
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struct AnyConfigDecodingStrategy: Sendable {
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let valueTypeID: ObjectIdentifier
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private let decode: @Sendable (Decoder) throws -> Any
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init<S: ConfigDecodingStrategy>(_ strategy: S) {
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self.valueTypeID = ObjectIdentifier(S.Value.self)
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self.decode = { decoder in try strategy.decode(from: decoder) as Any }
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}
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func decode(from decoder: Decoder) throws -> Any {
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try decode(decoder)
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}
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}
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