UNPKG

next

Version:

The React Framework

71 lines (70 loc) 3.04 kB
import { postponeWithTracking } from '../app-render/dynamic-rendering'; import { workUnitAsyncStorage } from '../app-render/work-unit-async-storage.external'; import { makeHangingPromise } from '../dynamic-rendering-utils'; import { InvariantError } from '../../shared/lib/invariant-error'; export function createServerPathnameForMetadata(underlyingPathname, workStore) { const workUnitStore = workUnitAsyncStorage.getStore(); if (workUnitStore) { switch(workUnitStore.type){ case 'prerender': case 'prerender-client': case 'prerender-ppr': case 'prerender-legacy': { return createPrerenderPathname(underlyingPathname, workStore, workUnitStore); } default: } } return createRenderPathname(underlyingPathname); } function createPrerenderPathname(underlyingPathname, workStore, prerenderStore) { const fallbackParams = workStore.fallbackRouteParams; if (fallbackParams && fallbackParams.size > 0) { switch(prerenderStore.type){ case 'prerender': return makeHangingPromise(prerenderStore.renderSignal, '`pathname`'); case 'prerender-client': throw Object.defineProperty(new InvariantError('createPrerenderPathname was called inside a client component scope.'), "__NEXT_ERROR_CODE", { value: "E694", enumerable: false, configurable: true }); case 'prerender-ppr': return makeErroringPathname(workStore, prerenderStore.dynamicTracking); break; default: return makeErroringPathname(workStore, null); } } // We don't have any fallback params so we have an entirely static safe params object return Promise.resolve(underlyingPathname); } function makeErroringPathname(workStore, dynamicTracking) { let reject = null; const promise = new Promise((_, re)=>{ reject = re; }); const originalThen = promise.then.bind(promise); // We instrument .then so that we can generate a tracking event only if you actually // await this promise, not just that it is created. promise.then = (onfulfilled, onrejected)=>{ if (reject) { try { postponeWithTracking(workStore.route, 'metadata relative url resolving', dynamicTracking); } catch (error) { reject(error); reject = null; } } return originalThen(onfulfilled, onrejected); }; // We wrap in a noop proxy to trick the runtime into thinking it // isn't a native promise (it's not really). This is so that awaiting // the promise will call the `then` property triggering the lazy postpone return new Proxy(promise, {}); } function createRenderPathname(underlyingPathname) { return Promise.resolve(underlyingPathname); } //# sourceMappingURL=pathname.js.map