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signature: tracking issue for derive(Signer) and derive(Verifier) stabilization #93
Description
The signature crate contains (as re-exports from the signature_derive crate) the following procedural macros which are presently gated under the derive-preview feature:
derive(Signer)- support for derivingSignatureon types which implementDigestSignaturefor signature types which are also marked asDigestSignaturederive(Verifier)- support for derivingVerifieron types which implementDigestVerifierfor signature types which are also marked asDigestSignature
The main blocker for stabilization of this feature is #92: stabilizing the other digest-related functionality the proc macro builds on, and ongoing design questions.
Activity
tarcieri commentedon Mar 17, 2020
We landed on a proc macro for this purpose after a lot of experimentation with alternative approaches, including blanket impls w\ marker traits. Some past discussion can be found here:
The tl;dr: of all of these PRs is we've explored a lot of the potential design space and alternatives to a proc macro, netting out where we are because none of them were flexible enough to cover all of the potential use cases.
tarcieri commentedon Oct 29, 2022
Stabilized in #1141
argon2: PHC string format support (RustCrypto#93)