next
Version:
The React Framework
102 lines (100 loc) • 4.46 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
0 && (module.exports = {
dispatchAppRouterAction: null,
useActionQueue: null
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
dispatchAppRouterAction: function() {
return dispatchAppRouterAction;
},
useActionQueue: function() {
return useActionQueue;
}
});
const _interop_require_wildcard = require("@swc/helpers/_/_interop_require_wildcard");
const _react = /*#__PURE__*/ _interop_require_wildcard._(require("react"));
const _isthenable = require("../../shared/lib/is-thenable");
// The app router state lives outside of React, so we can import the dispatch
// method directly wherever we need it, rather than passing it around via props
// or context.
let dispatch = null;
function dispatchAppRouterAction(action) {
if (dispatch === null) {
throw Object.defineProperty(new Error('Internal Next.js error: Router action dispatched before initialization.'), "__NEXT_ERROR_CODE", {
value: "E668",
enumerable: false,
configurable: true
});
}
dispatch(action);
}
const __DEV__ = process.env.NODE_ENV !== 'production';
const promisesWithDebugInfo = __DEV__ ? new WeakMap() : null;
function useActionQueue(actionQueue) {
const [state, setState] = _react.default.useState(actionQueue.state);
// Because of a known issue that requires to decode Flight streams inside the
// render phase, we have to be a bit clever and assign the dispatch method to
// a module-level variable upon initialization. The useState hook in this
// module only exists to synchronize state that lives outside of React.
// Ideally, what we'd do instead is pass the state as a prop to root.render;
// this is conceptually how we're modeling the app router state, despite the
// weird implementation details.
if (process.env.NODE_ENV !== 'production') {
const { useAppDevRenderingIndicator } = require('../../next-devtools/userspace/use-app-dev-rendering-indicator');
// eslint-disable-next-line react-hooks/rules-of-hooks
const appDevRenderingIndicator = useAppDevRenderingIndicator();
dispatch = (action)=>{
appDevRenderingIndicator(()=>{
actionQueue.dispatch(action, setState);
});
};
} else {
dispatch = (action)=>actionQueue.dispatch(action, setState);
}
// When navigating to a non-prefetched route, then App Router state will be
// blocked until the server responds. We need to transfer the `_debugInfo`
// from the underlying Flight response onto the top-level promise that is
// passed to React (via `use`) so that the latency is accurately represented
// in the React DevTools.
const stateWithDebugInfo = (0, _react.useMemo)(()=>{
if (!__DEV__) {
return state;
}
if ((0, _isthenable.isThenable)(state)) {
// useMemo can't be used to cache a Promise since the memoized value is thrown
// away when we suspend. So we use a WeakMap to cache the Promise with debug info.
let promiseWithDebugInfo = promisesWithDebugInfo.get(state);
if (promiseWithDebugInfo === undefined) {
const debugInfo = [];
promiseWithDebugInfo = Promise.resolve(state).then((asyncState)=>{
if (asyncState.debugInfo !== null) {
debugInfo.push(...asyncState.debugInfo);
}
return asyncState;
});
promiseWithDebugInfo._debugInfo = debugInfo;
promisesWithDebugInfo.set(state, promiseWithDebugInfo);
}
return promiseWithDebugInfo;
}
return state;
}, [
state
]);
return (0, _isthenable.isThenable)(stateWithDebugInfo) ? (0, _react.use)(stateWithDebugInfo) : stateWithDebugInfo;
}
if ((typeof exports.default === 'function' || (typeof exports.default === 'object' && exports.default !== null)) && typeof exports.default.__esModule === 'undefined') {
Object.defineProperty(exports.default, '__esModule', { value: true });
Object.assign(exports.default, exports);
module.exports = exports.default;
}
//# sourceMappingURL=use-action-queue.js.map