import { workAsyncStorage } from '../../app-render/work-async-storage.external';
import { workUnitAsyncStorage } from '../../app-render/work-unit-async-storage.external';
import { markCurrentScopeAsDynamic } from '../../app-render/dynamic-rendering';
/**
 * This function can be used to declaratively opt out of static rendering and indicate a particular component should not be cached.
 *
 * It marks the current scope as dynamic.
 *
 * - In [non-PPR](https://nextjs.org/docs/app/api-reference/next-config-js/partial-prerendering) cases this will make a static render
 * halt and mark the page as dynamic.
 * - In PPR cases this will postpone the render at this location.
 *
 * If we are inside a cache scope then this function does nothing.
 *
 * @note It expects to be called within App Router and will error otherwise.
 *
 * Read more: [Next.js Docs: `unstable_noStore`](https://nextjs.org/docs/app/api-reference/functions/unstable_noStore)
 */ export function unstable_noStore() {
    const callingExpression = 'unstable_noStore()';
    const store = workAsyncStorage.getStore();
    const workUnitStore = workUnitAsyncStorage.getStore();
    if (!store) {
        // This generally implies we are being called in Pages router. We should probably not support
        // unstable_noStore in contexts outside of `react-server` condition but since we historically
        // have not errored here previously, we maintain that behavior for now.
        return;
    } else if (store.forceStatic) {
        return;
    } else {
        store.isUnstableNoStore = true;
        if (workUnitStore) {
            switch(workUnitStore.type){
                case 'prerender':
                case 'prerender-client':
                case 'validation-client':
                case 'prerender-runtime':
                    // unstable_noStore() is a noop in Dynamic I/O.
                    return;
                case 'prerender-ppr':
                case 'prerender-legacy':
                case 'request':
                case 'cache':
                case 'private-cache':
                case 'unstable-cache':
                case 'generate-static-params':
                    break;
                default:
                    workUnitStore;
            }
        }
        markCurrentScopeAsDynamic(store, workUnitStore, callingExpression);
    }
}

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