Port URLSession's convenience async methods to Linux

URLSession+LinuxAsync.5.6.swift

//
//  URLSession+LinuxAsync.swift
//
//  Created by Ayden Panhuyzen on 2022-11-27.
//

#if canImport(FoundationNetworking)
import Foundation
import FoundationNetworking

public extension URLSession {
    /// Convenience method to load data using an URLRequest, creates and resumes an URLSessionDataTask internally.
    ///
    /// - Parameter request: The URLRequest for which to load data.
    /// - Returns: Data and response.
    func data(for request: URLRequest) async throws -> (Data, URLResponse) {
        try await withCheckedThrowingContinuation { continuation in
            self.dataTask(with: request) { data, response, error in
                if let data = data, let response = response {
                    continuation.resume(returning: (data, response))
                    return
                }
                continuation.resume(throwing: error!)
            }.resume()
        }
    }

    /// Convenience method to load data using an URL, creates and resumes an URLSessionDataTask internally.
    ///
    /// - Parameter url: The URL for which to load data.
    /// - Returns: Data and response.
    func data(from url: URL) async throws -> (Data, URLResponse) {
        try await data(for: URLRequest(url: url))
    }
}
#endif

URLSession+LinuxAsync.swift

//
//  URLSession+LinuxAsync.swift
//
//  Created by Ayden Panhuyzen on 2022-11-27.
//

#if canImport(FoundationNetworking)
import Foundation
import FoundationNetworking

public extension URLSession {
    /// Convenience method to load data using an URLRequest, creates and resumes an URLSessionDataTask internally.
    ///
    /// - Parameter request: The URLRequest for which to load data.
    /// - Returns: Data and response.
    func data(for request: URLRequest) async throws -> (Data, URLResponse) {
        try await withCheckedThrowingContinuation { continuation in
            self.dataTask(with: request) { data, response, error in
                if let data, let response {
                    continuation.resume(returning: (data, response))
                    return
                }
                continuation.resume(throwing: error!)
            }.resume()
        }
    }

    /// Convenience method to load data using an URL, creates and resumes an URLSessionDataTask internally.
    ///
    /// - Parameter url: The URL for which to load data.
    /// - Returns: Data and response.
    func data(from url: URL) async throws -> (Data, URLResponse) {
        try await data(for: URLRequest(url: url))
    }
}
#endif