"Maximum call stack size exceeded" in unwrapRefProxy

[sapphi-red]

RangeError: Maximum call stack size exceeded
    at unwrapRefProxy (vue-composition-api.module.js?750b:657)
    at _loop_1 (vue-composition-api.module.js?750b:648)
    at unwrapRefProxy (vue-composition-api.module.js?750b:654)
    at _loop_1 (vue-composition-api.module.js?750b:648)
    at unwrapRefProxy (vue-composition-api.module.js?750b:654)
    at _loop_1 (vue-composition-api.module.js?750b:648)
    at unwrapRefProxy (vue-composition-api.module.js?750b:654)
    at _loop_1 (vue-composition-api.module.js?750b:648)
    at unwrapRefProxy (vue-composition-api.module.js?750b:654)
    at _loop_1 (vue-composition-api.module.js?750b:648)

composition-api/src/reactivity/unwrap.ts

Lines 5 to 38 in 8c449c1

	export function unwrapRefProxy(value: any) {
	if (
	isFunction(value) ||
	isRef(value) ||
	isArray(value) ||
	isReactive(value) ||
	!isPlainObject(value) ||
	!Object.isExtensible(value)
	) {
	return value
	}
	const obj: any = {}
	// copy symbols over
	Object.getOwnPropertySymbols(value).forEach(
	(s) => (obj[s] = (value as any)[s])
	)
	for (const k of Object.keys(value)) {
	const r = value[k]
	// if is a ref, create a proxy to retrieve the value,
	if (isRef(r)) {
	const set = (v: any) => (r.value = v)
	const get = () => r.value
	proxy(obj, k, { get, set })
	} else {
	obj[k] = unwrapRefProxy(r)
	}
	}
	return obj
	}

Changing this func like below will fix this error. (refs #361)

export function unwrapRefProxy(value: any) {
  return value
}

[antfu]

Looks like the object you passed to setup has cycle. You may also want to make sure if it's expected.

/cc @pikax should we keep a "traveled list"?

[sapphi-red]

Oh, exactly it was so. (checked by passing object to JSON.stringify)

TypeError: Converting circular structure to JSON
    --> starting at object with constructor 'Vue'
    |     property '$options' -> object with constructor 'Object'
    |     property 'router' -> object with constructor 'VueRouter'
    --- property 'app' closes the circle

[sapphi-red]

This object may be SetupContext.

[pikax]

I will PR it in a bit