Should Jotai support atom graph cycles?

[dmaskasky]

const a = atom((get) => {
  return get(b)
})
const b = atom((get) => {
  return get(a)
})

A more real world example would be:

const valueAtom = atom(0)
const effectAtom = atomEffect((get) => {
  console.log('derived is now', get(derivedAtom))
})
const derivedAtom = atom((get) => {
  get(effectAtom) // mount effect
  return get(valueAtom)
})

[dai-shi]

I don't think we should support it. It's mathematically wrong, or undefined, right?
I think the cycles would cause infinite loops, or should error with cycle / infinite loop detection.

I think it's reasonable for atomEffect to have its own workaround as effect can be imperative instead of declarative.

[dmaskasky]

Thanks for clarifying this requirement.