46 lines
1.3 KiB
Swift
46 lines
1.3 KiB
Swift
import Foundation
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public protocol AnyDecoder {
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func decode<T: Decodable>(_ type: T.Type, from data: Data) throws -> T
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}
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extension JSONDecoder: AnyDecoder {}
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extension PropertyListDecoder: AnyDecoder {}
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extension Data {
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public func decodeToObject<T: Decodable>(using decoder: AnyDecoder = JSONDecoder()) throws -> T {
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return try decoder.decode(T.self, from: self)
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}
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}
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extension KeyedDecodingContainerProtocol {
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public func decode<T: Decodable>(forKey key: Key) throws -> T {
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return try decode(T.self, forKey: key)
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}
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public func decode<T: Decodable>(
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forKey key: Key,
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default defaultExpression: @autoclosure () -> T
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) throws -> T {
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return try decodeIfPresent(T.self, forKey: key) ?? defaultExpression()
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}
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}
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extension Decodable {
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public static func decode(fileName: String, bundle: Bundle = Bundle.main) throws -> Self {
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guard let path = bundle.path(forResource: fileName, ofType: ".json") else {
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throw JSONError.pathNotFound
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}
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guard let jsonData = try? Data(contentsOf: URL(fileURLWithPath: path)) else {
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throw JSONError.data(path: path)
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}
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do {
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return try jsonData.decode()
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} catch {
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throw JSONError.other(error: error)
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}
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}
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}
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