next/dist/server/dynamic-rendering-utils.js

The React Framework

/**
 * This function constructs a promise that will never resolve. This is primarily
 * useful for dynamicIO where we use promise resolution timing to determine which
 * parts of a render can be included in a prerender.
 *
 * @internal
 */ "use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "makeHangingPromise", {
    enumerable: true,
    get: function() {
        return makeHangingPromise;
    }
});
function makeHangingPromise(signal, expression) {
    const hangingPromise = new Promise((_, reject)=>{
        signal.addEventListener('abort', ()=>{
            reject(new Error(`During prerendering, ${expression} rejects when the prerender is complete. Typically these errors are handled by React but if you move ${expression} to a different context by using \`setTimeout\`, \`unstable_after\`, or similar functions you may observe this error and you should handle it in that context.`));
        }, {
            once: true
        });
    });
    // We are fine if no one actually awaits this promise. We shouldn't consider this an unhandled rejection so
    // we attach a noop catch handler here to suppress this warning. If you actually await somewhere or construct
    // your own promise out of it you'll need to ensure you handle the error when it rejects.
    hangingPromise.catch(ignoreReject);
    return hangingPromise;
}
function ignoreReject() {}

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