This generalizes the work previously done for Promise job callbacks. There is now a microtask queue that correctly processes all queued microtasks after each turn of the event loop, as well as after a scripted callback finishes executing, and after a classic script executes.
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix#4283
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Source-Repo: https://github.com/servo/servo
Source-Revision: cbcafd18f4cb5973948b081b4c104d99735e2789
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Fixes#13424
As of now this PR (Work in Progress), will try to implement (partially) on algorithms namely : [Schedule_Job](https://w3c.github.io/ServiceWorker/#schedule-job-algorithm), [Run_Job](https://w3c.github.io/ServiceWorker/#run-job-algorithm), [Register_Job](https://w3c.github.io/ServiceWorker/#register-algorithm).
An issue that needs to be addressed:
Resolving the promise value after queueing it as a `dom_manipulation_task` by wrapping it in a runnable `RunJobHandler` (which holds a `TrustedPromise`) and trying to call `resolve_native` results in a crash. [stack trace](http://paste.ofcode.org/zdjJ9npBgX6JsyWQkJjnYk)
@jdm I am not sure what's causing the crash ?
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Source-Repo: https://github.com/servo/servo
Source-Revision: 0ea0ade71dfd445841035abb5f3ea35161b075d2
