103 lines
3.5 KiB
Swift
103 lines
3.5 KiB
Swift
import Foundation
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/// A type representing possible errors Moya can throw.
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public enum MoyaError: Swift.Error {
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/// Indicates a response failed to map to an image.
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case imageMapping(Response)
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/// Indicates a response failed to map to a JSON structure.
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case jsonMapping(Response)
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/// Indicates a response failed to map to a String.
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case stringMapping(Response)
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/// Indicates a response failed to map to a Decodable object.
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case objectMapping(Swift.Error, Response)
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/// Indicates that Encodable couldn't be encoded into Data
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case encodableMapping(Swift.Error)
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/// Indicates a response failed with an invalid HTTP status code.
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case statusCode(Response)
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/// Indicates a response failed due to an underlying `Error`.
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case underlying(Swift.Error, Response?)
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/// Indicates that an `Endpoint` failed to map to a `URLRequest`.
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case requestMapping(String)
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/// Indicates that an `Endpoint` failed to encode the parameters for the `URLRequest`.
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case parameterEncoding(Swift.Error)
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}
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public extension MoyaError {
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/// Depending on error type, returns a `Response` object.
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var response: Moya.Response? {
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switch self {
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case .imageMapping(let response): return response
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case .jsonMapping(let response): return response
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case .stringMapping(let response): return response
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case .objectMapping(_, let response): return response
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case .encodableMapping: return nil
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case .statusCode(let response): return response
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case .underlying(_, let response): return response
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case .requestMapping: return nil
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case .parameterEncoding: return nil
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}
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}
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/// Depending on error type, returns an underlying `Error`.
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internal var underlyingError: Swift.Error? {
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switch self {
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case .imageMapping: return nil
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case .jsonMapping: return nil
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case .stringMapping: return nil
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case .objectMapping(let error, _): return error
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case .encodableMapping(let error): return error
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case .statusCode: return nil
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case .underlying(let error, _): return error
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case .requestMapping: return nil
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case .parameterEncoding(let error): return error
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}
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}
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}
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// MARK: - Error Descriptions
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extension MoyaError: LocalizedError {
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public var errorDescription: String? {
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switch self {
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case .imageMapping:
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return "Failed to map data to an Image."
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case .jsonMapping:
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return "Failed to map data to JSON."
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case .stringMapping:
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return "Failed to map data to a String."
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case .objectMapping:
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return "Failed to map data to a Decodable object."
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case .encodableMapping:
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return "Failed to encode Encodable object into data."
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case .statusCode:
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return "Status code didn't fall within the given range."
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case .underlying(let error, _):
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return error.localizedDescription
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case .requestMapping:
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return "Failed to map Endpoint to a URLRequest."
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case .parameterEncoding(let error):
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return "Failed to encode parameters for URLRequest. \(error.localizedDescription)"
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}
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}
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}
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// MARK: - Error User Info
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extension MoyaError: CustomNSError {
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public var errorUserInfo: [String: Any] {
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var userInfo: [String: Any] = [:]
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userInfo[NSLocalizedDescriptionKey] = errorDescription
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userInfo[NSUnderlyingErrorKey] = underlyingError
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return userInfo
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}
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}
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