`Swift: Run Swift Script` always runs in Swift 5 language mode

[MahdiBM]

Describe the bug
When running Swift: Run Swift Script on single files, the extension runs effectively this command:

swift path/to/your-file.swift

Since Swift's default language mode is 5, this will be run in Swift 5 language mode.

To fix, the extension should provide a second "step" when you choose Swift: Run Swift Script that also asks about what language mode a user would like to choose.

Then use that in the command that runs the Swift file. For example the command for Swift 6 language mode would be:

swift -swift-version 6 path/to/your-file.swift

Environment

• OS: [e.g. Ubuntu 20.04] -
• Swift version (output of swift --version): 6
• Visual Studio Code version: -
• vscode-swift version: 2.0.2

[plemarquand]

I think a second step would make this feature more cumbersome to use if it had to be picked every time. How about a setting that can be specified globally or per-workspace?

[MahdiBM]

@plemarquand i did think about that, but i think usually one could just push "return" twice quickly instead of once, to also choose the language mode with the second push? I think VSCode also moves your last-used option to top?

A global setting could be fine but then we still should have another command that lets you choose the language mode you'd want, just in case?

[louisunlimited]

Hi @award999 @MahdiBM @plemarquand , I was browsing over issues and found this. Looks like an interesting addition! Since this is still in Backlog I suppose a nice POC would help visualize this, so I made a tiny PR implementing just be basics of having another dropdown selecting Swift Versions. If this is something y'all would love a PR for I would love to iterate on this and contribute!

• feat: secondary quick pick for selecting Swift Version with runSwiftScript command #1476

[adam-fowler]

I would prefer a global setting. But the setting could have options swift 6, swift 5 and ask each time.

[plemarquand]

Verified in 962681f

[MahdiBM]

@plemarquand thank you, this looks good enough, but I would have included all swift-supported versions because why not:

note: valid arguments to '-swift-version' are '4', '4.2', '5', '6'

if Swift supports these, the official VSCode extension should too, IMO.

[plemarquand]

@MahdiBM sure, why not, I opened #1486