mobx/src/utils/iterable.ts

Simple, scalable state management.

import { getGlobal } from "../internal"

// safely get iterator prototype if available
const global = getGlobal()
const maybeIteratorPrototype = global.Iterator?.prototype || {}

export function makeIterable<T, TReturn = unknown>(
    iterator: Iterator<T>
): IteratorObject<T, TReturn> {
    iterator[Symbol.iterator] = getSelf
    return Object.assign(Object.create(maybeIteratorPrototype), iterator)
}

function getSelf() {
    return this
}