Review GraphQL 2020 Spec Changes

[michaelstaib]

We have already implemented quite a lot of the GraphQL 2021 spec. We still need to review the changes again and tick of what is done and mark what we still have to do. We should add a checklist into this issue that links to all the spec change prs.

The release of V11 and the GraphQL Spec 2020 align quite well.

• RFC: Number value literal lookahead restrictions graphql/graphql-spec#601 (in progress)
• Clarify that lexing is greedy graphql/graphql-spec#599 (in progress)
• [RFC] Repeatable directives graphql/graphql-spec#472
• Add description to Schema graphql/graphql-spec#466
• Disallow non-breakable chains of circular references in Input Objects graphql/graphql-spec#445 (accepted for 2020)
• RFC: Allow interfaces to implement other interfaces graphql/graphql-spec#373
• [RFC] Allow directives on variable definitions graphql/graphql-spec#510: 8b4f7e5
• [RFC] Repeatable directives graphql/graphql-spec#472
• [RFC] "Directive order is significant" section graphql/graphql-spec#470
• [RFC] Custom Scalar Specification URLs graphql/graphql-spec#649
• Add to the @deprecated directive to allow deprecation of inputValues #1463

[michaelstaib]

@PascalSenn do you fancy some spec work? We need to review / re-read the spec. There are still not all items merged so we should first look into the open drafts.

If you are not interested then I will do it. If you are interested then we should organize this work here and divide up the review and implementation.

[michaelstaib]

This is not pressing... we are pretty far already on the spec... I just want to get it in a more organized form.

[PascalSenn]

This one? https://graphql.github.io/graphql-spec/draft/?

[michaelstaib]

Yeah but there are not all the things in.

https://github.com/graphql/graphql-spec/pulls?q=is%3Aopen+is%3Apr+label%3A%22📄+Draft+%28RFC+2%29%22
https://github.com/graphql/graphql-spec/pulls?q=is%3Apr+label%3A%22🏁+Accepted+%28RFC+3%29%22+is%3Aclosed

[tobias-tengler]

Closing, since I think this is done.