return value from worklets

[cbjs]

1. object spread is not working
2. array is converted to object

// from worklets
export workletFun = createRunInContextFn(() => {
    'worklet';
    return {test_arr: [1,2]};
})


// rn js
// array is converted to object
const { test_arr } = await workletFun();
console.log(test_arr);
// {"0": 1, "1": 2 }

// object spread not working
const res = await workletFun();
console.log({...res, a: 1})

[linhttbk97]

same problem

[mrousavy]

the resulting values are Proxies. Arrays and Objects are Proxied as native HostObjects, so they can cheaply be shared by reference, without copying them.

Methods such as map, accessing index, etc all still work.

Is there any reason you need them to be an Array/Object instead of a Proxy?

[mrousavy]

Object spread not working could be a feature request yep

[linhttbk97]

@mrousavy I want to pass the resulting values into native module then I got an error "TypeError: ownKeys target key is non-configurable but not present in trap result"

[mrousavy]

I don't know, never seen that error before and don't have a stacktrace or repro so I can't help you

[linhttbk97]

You can simply pass result type Array from worklet into android native module as ReadonlyArray and see what happen @mrousavy