bug1814020.js - mozsearch

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const dbg = newGlobal({ sameZoneAs: this }).Debugger(this);

async function* inspectingGenerator() {

    await undefined;

    const frame = dbg.getNewestFrame();

    const asyncPromise = frame.asyncPromise;

    assertEq(asyncPromise.getPromiseReactions().length, 0);

async function* emptyGenerator() {}

const gen = inspectingGenerator();

const inspectingGenPromise = gen.next();

const emptyGen = emptyGenerator();

// Close generator.

emptyGen.next();

// Creates a reaction record on the inspectingGenPromise which points to the

// closed emptyGen generator.

emptyGen.return(inspectingGenPromise);

// Execute the inspectingGenerator() code after `await`, which gets the

// promise reactions (potentially including the closed emptyGen generator)

drainJobQueue();