Function recursively_build_tree

tests/all/gc.rs:1245–1263

(
        mut store: &mut RootScope<&mut Store<()>>,
        pre: &ArrayRefPre,
        num_refs_dropped: &Arc<AtomicUsize>,
        expected: &mut usize,
        depth: u32,
    )

    let mut expected = 0;

    fn recursively_build_tree(
        mut store: &mut RootScope<&mut Store<()>>,
        pre: &ArrayRefPre,
        num_refs_dropped: &Arc<AtomicUsize>,
        expected: &mut usize,
        depth: u32,
    ) -> Result<Rooted<AnyRef>> {
        let max = if cfg!(miri) { 1 } else { 3 };
        if depth >= max {
            *expected += 1;
            let e = ExternRef::new(&mut store, CountDrops(num_refs_dropped.clone()))?;
            AnyRef::convert_extern(&mut store, e)
        } else {
            let left = recursively_build_tree(store, pre, num_refs_dropped, expected, depth + 1)?;
            let right = recursively_build_tree(store, pre, num_refs_dropped, expected, depth + 1)?;
            let arr = ArrayRef::new_fixed(store, pre, &[left.into(), right.into()])?;
            Ok(arr.to_anyref())
        }
    }

    {
        let mut store = RootScope::new(&mut store);