[WIP] Experimental support for semantic-non-null

[benjie]

DISCLAIMER: I'm very jetlagged right now, and it's late. This is almost certainly full of issues.

The main aim of this PR is so we can start experimenting with both semantic non-null and disabling error bubbling.

Semantic non-null has been added using the asterisk (Int*) syntax, because that was easiest (and I'm doing this from an airport lounge whilst I wait for boarding...). I know this isn't what we've most recently discussed, but it's a smaller lift and means we can start experimenting.

To disable error bubbling, pass errorPropagation: false as part of the execution args: graphql({ schema, source, errorPropagation: false }).

To see the full types, pass nullability: 'FULL' to getIntrospectionQuery, e.g. getIntrospectionQuery({ nullability: 'FULL' }). (I don't like this current enum, but it'll do for now.)

Note: this implementation does NOT align with my previous thoughts exactly, and it is definitely not final.

TODO:

• Address TODO comments, most notably the memoization ones
• If asterisk is disliked (which it certainly was... but what we were proposing then was slightly different), add document directives and change syntax to !! or whatever
• Finalize naming
• Add reasonable descriptions to introspection
• Add lots of tests
• Everything else
• Reflect in spec

[benjie]

@github-actions publish-pr-on-npm

[benjie]

Boarding was just called... So that's it for now!

[benjie]

@JoviDeCroock If you have a moment, looks like https://github.blog/changelog/2024-02-13-deprecation-notice-v1-and-v2-of-the-artifact-actions/ is causing us issues. I tried updating them but CI is still failing, I think maybe my fixes to .github need to be merged into 16.x.x first and then this might run?

[JoviDeCroock]

@benjie #4193 should have you covered - yes the trunk branch will dictate the actions used I think

[github-actions]

@github-actions publish-pr-on-npm

@benjie The latest changes of this PR are available on NPM as
graphql@16.9.0-canary.pr.4192.1813397076f44a55e5798478e7321db9877de97a
Note: no gurantees provided so please use your own discretion.

Also you can depend on latest version built from this PR:
npm install --save graphql@canary-pr-4192