var compute_delta = async (i) => Promise.resolve(i / 100 || 1);

var suspending_compute_delta = new WebAssembly.Suspending(
    compute_delta
);
var ins = wasmEvalText(`(module
  (import "js" "init_state" (func $init_state (result f64)))
  (import "js" "compute_delta"
    (func $compute_delta (param i32) (result f64)))

  (global $state (mut f64) (f64.const nan))
  (func $init (global.set $state (call $init_state)))
  (start $init)

  (func $get_state (export "get_state") (result f64) (global.get $state))
  (func (export "update_state_export") (param i32) (result f64)
    (global.set $state (f64.add
      (global.get $state) (call $compute_delta (local.get 0))))
    (global.get $state)
  )
)`, {
    js: {
        init_state() { return 0; },
        compute_delta: suspending_compute_delta,
    },
});

var update_state = WebAssembly.promising(
    ins.exports.update_state_export
);

var res = update_state(4);
var tasks = res.then((r) => {
    assertEq(ins.exports.get_state(), .04);
});

assertEq(ins.exports.get_state(), 0);