RFC: feat: support pattern properties

[gzm0]

Changes

Add support for patternProperties in addition to additionalProperties (#754).

How to Review

Overall approach so far only.

Checklist

• [ ] Unit tests updated
• [ ] docs/ updated (if necessary)
• [ ] pnpm run update:examples run (only applicable for openapi-typescript)

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[gzm0]

@drwpow something like this is what I have been thinking. Of course it will not validate the regexes, but it will at least generate a union type that represents the schema.

[drwpow]

Yeah this is a tricky one but I’m open to adding whatever support we can here. Better than simply ignoring it altogether. I’m in favor of this approach as it shouldn’t break backwards compatibility for most folks

[drwpow]

Sorry—just realized I went a while without checking in on this. I’m happy with the direction of this PR, and we’ve discussed a lot of things outside of here 🙂. If we just add a couple tests for this I think this direction is good to ship!