Add bindings for target_env = "libnx"

[leo60228]

This target is added by rust-lang/rust#74567. This was originally generated through rust-bindgen, then cleaned up by hand.

[rust-highfive]

r? @JohnTitor

(rust_highfive has picked a reviewer for you, use r? to override)

[leo60228]

I fixed most of the style issues, but the item ordering seems like it could be really annoying to fix by hand. Is there anything that automates this?

[leo60228]

I wrote this tool to sort the items:

use quote::ToTokens;
use std::env;
use std::fs;
use syn::Item;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let code = fs::read_to_string(env::args().nth(1).unwrap())?;
    let mut file = syn::parse_file(&code)?;
    let (foreign, mut items): (Vec<_>, Vec<_>) = file
        .items
        .iter()
        .cloned()
        .partition(|x| matches!(x, Item::ForeignMod(_)));
    let mut foreign_iter = foreign.into_iter().map(|x| {
        if let Item::ForeignMod(x) = x {
            x
        } else {
            unreachable!()
        }
    });
    let mut foreign_mod = foreign_iter.next().unwrap();
    foreign_mod.items.extend(foreign_iter.flat_map(|x| x.items));
    items.push(Item::ForeignMod(foreign_mod));
    file.items = items;
    file.items.sort_by_key(|x| match x {
        Item::Use(_) => 1,
        Item::Type(_) => 2,
        Item::Struct(_) => 3,
        Item::Union(_) => 3,
        Item::Enum(_) => 3,
        Item::Const(_) => 4,
        Item::Static(_) => 4,
        Item::Fn(_) => 5,
        Item::ForeignMod(_) => 6,
        _ => 7,
    });
    println!("{}", file.into_token_stream().to_string());
    Ok(())
}

[leo60228]

CI failure seems to be spurious (looks like something's broken in the latest cargo-xbuild release).

[JohnTitor]

CI failure seems to be spurious (looks like something's broken in the latest cargo-xbuild release).

It's due to rust-lang/rust#74577.

[JohnTitor]

@leo60228 Could I hold off this until rust-lang/rust#74567 gets an approval from the team, and naming and other matters are stabilized? (At least we should wait for fixing nightly though.)

[bors]

☔ The latest upstream changes (presumably #1975) made this pull request unmergeable. Please resolve the merge conflicts.

[JohnTitor]

Looks like the above PR was closed due to inactivity. I'm going to close this as well but feel free to re-open once you get some time to work on. Thanks!