[SR-15226] URLSession async features not available under x86_64-unknown-linux-gnu

[swift-ci]

Previous ID	SR-15226
Radar	None
Original Reporter	msbit (JIRA User)
Type	Bug
Status	Resolved
Resolution	Duplicate

Environment

$ swiftc --version
Swift version 5.5 (swift-5.5-RELEASE)
Target: x86_64-unknown-linux-gnu

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.3 LTS
Release:        20.04
Codename:       focal

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug
Assignee	None
Priority	Medium

md5: c558b324f8d5372e363d9afa9dcfb355

duplicates:

• [SR-15187] URLSession missing async APIs in Swift 5.5 swift-corelibs-foundation#3205

Issue Description:

With code like:

import Foundation
import FoundationNetworking

let bytes = URLSession.AsyncBytes()

Task.detached {
  let url = URL(string: "https://www.example.com")!

  await URLSession.shared.bytes(from: url)
  await URLSession.shared.data(from: url)
  await URLSession.shared.download(from: url)
}

when run via:

swiftc main.swift

gives me the following errors:

main.swift:4:24: error: type 'URLSession' has no member 'AsyncBytes'
let bytes = URLSession.AsyncBytes()
            ~~~~~~~~~~ ^~~~~~~~~~
main.swift:9:27: error: value of type 'URLSession' has no member 'bytes'
  await URLSession.shared.bytes(from: url)
        ~~~~~~~~~~~~~~~~~ ^~~~~
main.swift:10:27: error: value of type 'URLSession' has no member 'data'
  await URLSession.shared.data(from: url)
        ~~~~~~~~~~~~~~~~~ ^~~~
main.swift:11:27: error: value of type 'URLSession' has no member 'download'
  await URLSession.shared.download(from: url)
        ~~~~~~~~~~~~~~~~~ ^~~~~~~~

Is there a separate import or some other invocation (similar to import FoundationNetworking) required for non-Apple platforms to use these APIs?

[typesanitizer]

IIUC these APIs aren't fully implemented in swift-corelibs-foundation.

[adam-rocska]

This is insanity....

[AnthonyLatsis]

@shahmishal This is a duplicate of an issue that was transferred last year to corelibs-foundation. Can we transfer it as well?