Function thread_index_via_guest_call

tests/all/component_model/func.rs:3340–3394

(style: ApiStyle)

}

async fn thread_index_via_guest_call(style: ApiStyle) -> Result<()> {
    let component = r#"
(component
  (component $c
    (core module $m
      (import "" "thread.index" (func $thread-index (result i32)))
      (func (export "run") (result i32)
         (call $thread-index)
      )
    )
    (core func $thread-index (canon thread.index))
    (core instance $m (instantiate $m (with "" (instance
      (export "thread.index" (func $thread-index))
    ))))
    (func (export "run") (result u32) (canon lift (core func $m "run")))
  )
  (instance $c (instantiate $c))

  (component $d
    (import "c" (instance $c
      (export "run" (func (result u32)))
    ))
    (core func $run (canon lower (func $c "run")))
    (core module $m
      (import "" "thread.index" (func $thread-index (result i32)))
      (import "" "run" (func $run (result i32)))
      (func (export "run")
         (local $mine i32)
         (local $theirs i32)
         (local.set $mine (call $thread-index))
         (if (i32.eqz (local.get $mine)) (then unreachable))
         (local.set $theirs (call $run))
         (if (i32.eqz (local.get $theirs)) (then unreachable))
      )
    )
    (core func $thread-index (canon thread.index))
    (core instance $m (instantiate $m (with "" (instance
      (export "thread.index" (func $thread-index))
      (export "run" (func $run))
    ))))
    (func (export "run") (canon lift (core func $m "run")))
  )
  (instance $d (instantiate $d (with "c" (instance $c))))
  (func (export "run") (alias export $d "run"))
)
"#;
    let engine = Engine::new(&style.config())?;
    let component = Component::new(&engine, component)?;
    let mut store = Store::new(&engine, ());
    let linker = Linker::new(&engine);
    let instance = style.instantiate(&mut store, &linker, &component).await?;
    let run = instance.get_typed_func::<(), ()>(&mut store, "run")?;
    style.call(&mut store, run, ()).await?;
    Ok(())
}

fn with_new_instance<T>(
    engine: &Engine,