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denoland-deno/cli/tests/workers/racy_worker.js
Tim Ramlot 635253bd3a
feat(runtime/worker): Structured cloning worker message passing (#9323)
This commit upgrade "Worker.postMessage()" implementation to use 
structured clone algorithm instead of non-spec compliant JSON serialization.
2021-05-11 21:09:09 +02:00

25 lines
653 B
JavaScript

// See issue for details
// https://github.com/denoland/deno/issues/4080
//
// After first received message, this worker schedules
// [assert(), close(), assert()] ops on the same turn of microtask queue
// All tasks after close should not make it
onmessage = async function () {
let stage = 0;
await new Promise((_) => {
setTimeout(() => {
if (stage !== 0) throw "Unexpected stage";
stage = 1;
}, 50);
setTimeout(() => {
if (stage !== 1) throw "Unexpected stage";
stage = 2;
postMessage("DONE");
close();
}, 50);
setTimeout(() => {
throw "This should not be run";
}, 50);
});
};