Add RefCast trait to newtypes

hasura / ndc-spec

NDC Specification and Reference Implementation

http://hasura.github.io/ndc-spec

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Add RefCast trait to newtypes #161

Closed daniel-chambers closed 4 months ago

daniel-chambers commented 4 months ago

As suggested by @SamirTalwar in #159, this PR adds the RefCast trait to all newtype wrappers which allows the safe casting of &SmolStr to &MySmolStrWrappingNewtype.