recoil-toolkit
Version:
30 lines • 1.08 kB
JavaScript
import { atom, selectorFamily } from 'recoil';
import { uniqueId } from '../_core';
const reduxSelectorsMap = new Map();
const reduxSelectorsMapInv = new Map();
function getSelectorId(selectorFunc) {
let cachedSelectorId = reduxSelectorsMapInv.get(selectorFunc);
if (!cachedSelectorId) {
const id = uniqueId();
reduxSelectorsMapInv.set(selectorFunc, id);
reduxSelectorsMap.set(id, selectorFunc);
cachedSelectorId = id;
}
return cachedSelectorId;
}
export const reduxState = atom({
key: '@recoil-toolkit.reduxState',
default: undefined,
});
const reduxSelectorFamily = selectorFamily({
key: '@recoil-toolkit.reduxSelectors',
get: (selectorId) => ({ get }) => {
const currentReduxState = get(reduxState);
const selectorFunc = reduxSelectorsMap.get(selectorId);
return currentReduxState && selectorFunc ? selectorFunc(currentReduxState) : undefined;
},
});
export function reduxSelector(selector) {
return reduxSelectorFamily(getSelectorId(selector));
}
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