Impl traits for TransparentWrapper types safely #1001
Merged
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TransparentWrapper
provides enough safety guarantees that, for some traits, it can be used as a bound to implement those traits without needing extra safety logic.This commit introduces the
impl_for_transparent_wrapper!
macro, which emits the appropriate bound onTransparentWrapper
in order to justify the soundness of a given trait impl internally, thus not requiring the caller to provide a safety proof.