| // Copyright 2016 The Tulsi Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| import Foundation |
| |
| |
| /// Throwable error type for the Tulsi domain. |
| class TulsiError: NSError { |
| enum ErrorCode: NSInteger { |
| /// All purpose generic error. |
| case general |
| |
| /// An attempt has been made to generate an Xcode project from a generator config that is |
| /// missing critical information. |
| case configNotGenerateable |
| /// An attempt has been made to load a config from an URL which is not valid. |
| case configNotLoadable |
| /// An attempt has been made to save a generator config which is missing critical information. |
| case configNotSaveable |
| } |
| |
| convenience init(errorMessage: String) { |
| let fmt = NSLocalizedString("TulsiError_General", |
| comment: "A generic exception was thrown, additional debug data is in %1$@.") |
| self.init(code: .general, userInfo: [NSLocalizedDescriptionKey: String(format: fmt, errorMessage) as AnyObject]) |
| } |
| |
| init(code: ErrorCode, userInfo: [String: AnyObject]? = nil) { |
| var userInfo = userInfo |
| if userInfo == nil { |
| userInfo = [NSLocalizedDescriptionKey: TulsiError.localizedErrorMessageForCode(code) as AnyObject] |
| } else if userInfo?[NSLocalizedDescriptionKey] == nil { |
| userInfo![NSLocalizedDescriptionKey] = TulsiError.localizedErrorMessageForCode(code) as AnyObject? |
| } |
| super.init(domain: "Tulsi", code: code.rawValue, userInfo: userInfo) |
| } |
| |
| required init?(coder: NSCoder) { |
| super.init(coder: coder) |
| } |
| |
| // MARK: - Private methods |
| |
| private static func localizedErrorMessageForCode(_ errorCode: ErrorCode) -> String { |
| switch errorCode { |
| case .configNotGenerateable: |
| return NSLocalizedString("TulsiError_ConfigNotGenerateable", |
| comment: "Error message for when the user tried to generate an Xcode project from an incomplete config.") |
| case .configNotLoadable: |
| return NSLocalizedString("TulsiError_ConfigNotLoadable", |
| comment: "Error message for when a generator config fails to load for an unspecified reason.") |
| case .configNotSaveable: |
| return NSLocalizedString("TulsiError_ConfigNotSaveable", |
| comment: "Generator config is not fully populated and cannot be saved.") |
| |
| case .general: |
| let fmt = NSLocalizedString("TulsiError_General", |
| comment: "A generic exception was thrown, additional debug data is in %1$@.") |
| return String(format: fmt, "Code: \(errorCode)") |
| } |
| } |
| } |