append.swift

import RxSwift

///
/// The operators can be generated by running the below code with Swift 4
///
//
//let methodCount = 6
//
//print("""
//extension ObservableType {
//    public func appendLatestFrom<SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(E, SecondO.E)> {
//        return withLatestFrom(second) { ($0, $1) }
//    }\n
//\((1..<methodCount).map({
//    """
//        public func appendLatestFrom<\((0...$0).map({ "T\($0)" }).joined(separator: ", ")), SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(\((0...$0).map({ "T\($0)" }).joined(separator: ", ")), SecondO.E)>
//            where E == (\((0...$0).map({ "T\($0)" }).joined(separator: ", "))) {
//                return withLatestFrom(second) { (\((0...$0).map({ "$0.\($0)" }).joined(separator: ", ")), $1) }
//        }
//    """
//}).joined(separator: "\n\n"))
//}
//""")
//

// swiftlint:disable large_tuple

extension ObservableType {
    public func appendLatestFrom<SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(E, SecondO.E)> {
        return withLatestFrom(second) { ($0, $1) }
    }

    public func appendLatestFrom<T0, T1, SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(T0, T1, SecondO.E)>
        where E == (T0, T1) {
            return withLatestFrom(second) { ($0.0, $0.1, $1) }
    }

    public func appendLatestFrom<T0, T1, T2, SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(T0, T1, T2, SecondO.E)>
        where E == (T0, T1, T2) {
            return withLatestFrom(second) { ($0.0, $0.1, $0.2, $1) }
    }

    public func appendLatestFrom<T0, T1, T2, T3, SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(T0, T1, T2, T3, SecondO.E)>
        where E == (T0, T1, T2, T3) {
            return withLatestFrom(second) { ($0.0, $0.1, $0.2, $0.3, $1) }
    }

    public func appendLatestFrom<T0, T1, T2, T3, T4, SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(T0, T1, T2, T3, T4, SecondO.E)>
        where E == (T0, T1, T2, T3, T4) {
            return withLatestFrom(second) { ($0.0, $0.1, $0.2, $0.3, $0.4, $1) }
    }

    public func appendLatestFrom<T0, T1, T2, T3, T4, T5, SecondO: ObservableConvertibleType>(_ second: SecondO) -> Observable<(T0, T1, T2, T3, T4, T5, SecondO.E)>
        where E == (T0, T1, T2, T3, T4, T5) {
            return withLatestFrom(second) { ($0.0, $0.1, $0.2, $0.3, $0.4, $0.5, $1) }
    }
}

// swiftlint:enable large_tuple