Fixing memory leak that leaves values and callbacks in memory indefinitely
Keeping track of return values that arrive before callbacks are registered, and then delivering to the callbacks when they are registered.
This fixes a major memory leak currently in Eel, as reported in https://github.com/ChrisKnott/Eel/issues/540
Tested extensively locally.
See that values no longer accumulate when many rapid calls to JS are performed:

@ChrisKnott this is an important one... may warrant a new release, perhaps?
@ChrisKnott this is an important one... may warrant a new release, perhaps?
Yes, I think so. One thing I never really thought about was that people would make apps with Eel that run for hours.
I have had a lot of Life Stuff last couple of years but from this week I will have Friday afternoons free so hopefully I can finally get back to making progress on this project. It's kind of got away from me atm 😅...
Hey @nosachamos - this looks like it'd be really good for us to get in. I'm aware it's been a long time since you contributed this - sorry.
If you still have context, do you think you'd be able to add a test that can demonstrate the memory leak is fixed (and will therefore protect against regressions in the future)