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// Copyright (c) 2016-present, Facebook, Inc. All rights reserved. // // You are hereby granted a non-exclusive, worldwide, royalty-free license to use, // copy, modify, and distribute this software in source code or binary form for use // in connection with the web services and APIs provided by Facebook. // // As with any software that integrates with the Facebook platform, your use of // this software is subject to the Facebook Developer Principles and Policies // [http://developers.facebook.com/policy/]. This copyright notice shall be // included in all copies or substantial portions of the software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS // FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR // COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN // CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import Foundation
extension AppInvite { /**
A promo code for an App Invite promotion. This can be between 0 and 10 characters long, and can contain alphanumeric and spaces only.
If you attempt to create a Promo Code with an invalid string literal, you will receive a runtime warning, and your code will be truncated. */ public struct PromoCode { internal let rawValue: String
/**
Attempt to create a promo code from a string.
- parameter string: The string to initialize from. */ public init?(string: String) { let truncated = PromoCode.truncate(string: string) if string != truncated { return nil }
rawValue = string } } }
extension AppInvite.PromoCode: Hashable { /// The hash of this promo code. public var hashValue: Int { return rawValue.hashValue }
/**
Compare two `PromoCode`s for equality.
- parameter lhs: The first promo code to compare. - parameter rhs: The second promo code to compare.
- returns: Whether or not the promo codes are equal. */ public static func == (lhs: AppInvite.PromoCode, rhs: AppInvite.PromoCode) -> Bool { return lhs.rawValue == rhs.rawValue } }
extension AppInvite.PromoCode: ExpressibleByStringLiteral { /**
Create a PromoCode from a string literal.
- parameter value: The string literal to intiialize from. */ public init(stringLiteral value: String) { let truncated = AppInvite.PromoCode.truncate(string: value) if truncated != value { print("Warning: Attempted to create a PromoCode from \"\(value)\" which contained invalid characters, or was too long.") }
rawValue = truncated }
/**
Create a PromoCode from a unicode scalar literal.
- parameter value: The string literal to intiialize from. */ public init(unicodeScalarLiteral value: String) { self.init(stringLiteral: value) }
/**
Create a PromoCode from an extended grapheme cluster literal.
- parameter value: The string literal to initialize from. */ public init(extendedGraphemeClusterLiteral value: String) { self.init(stringLiteral: value) } }
extension AppInvite.PromoCode { fileprivate static func truncate(string: String) -> String { let validCharacters = CharacterSet.alphanumerics let cleaned = string .unicodeScalars .filter({ validCharacters.contains(UnicodeScalar(UInt16($0.value))!) }) .map(Character.init) return String(cleaned) } }
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