General purpose memoization tool

[kacper-mikolajczak]

Details

PR implements POC of memoization tool for general purpose use. The main goal is to:

• keep compatibility with current usage of memoization tools across the codebase
• unify the API
• find out what caching primitive works better
• implement monitoring for caches

Fixed Issues

$ #42200
PROPOSAL:

Tests

• Verify that no errors appear in the JS console

Offline tests

QA Steps

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
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  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
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• I included screenshots or videos for tests on all platforms
• I ran the tests on all platforms & verified they passed on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
  • MacOS: Desktop
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Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari

MacOS: Desktop

[tgolen]

Could you maybe add a comment somewhere about when you should use which mode?

[kacper-mikolajczak]

Sure thing! I have added comments, let me know if they are descriptive enough 🙏

[kacper-mikolajczak]

After consideration of plans on POC v2:

POCv2 would consist of:
pick one version of cache struct (Map)
find performant and stable solution for complex arguments serialization
add monitoring primitives so we could know what's up

I am positive we should pick Array as caching structure for now. Reasoning behind this decision is react-native-onyx already uses fast-equals library which will be re-used, thus we would not pay the price for employing new library.

Additionally, after going through its codebase, there are many short-circuit tricks in comparison algorithms where should lower level of comparison complexity.

Also, I did not find any stable library for serialization which may be potential candidate.

[tgolen]

I am positive we should pick Array as caching structure for now.

Great! I like it. Thanks!

[kacper-mikolajczak]

This PR is continued in #43868