Exact

Exact Union RegExp

Igor Rončević 8d4178f12d Implement new hashing (#7259) ... ## Description This PR implements new hashing, as explained in the tracking issue #7256. New hashing is an opt-in experimental feature with the feature flag `new_hashing`. The new hashing hashes lengths as prefix to the content hash for the following built-in and `std` types: - string slices (`str`) - arrays (`[T; N]`) - `std::vec::Vec<T>` - `std::bytes::Bytes` Some of the `std` types that use the above types internally for storing their content still hash only the content, without the length prefix of the container. The reason for this is that 1) the choice of the container is just an implementation detail and 2) the semantics of the type requires only the content (mostly of the fixed, type-specific length) to be hashed. A typical example would be `std::b512::B512` where, same to `b256` we want to hash only the content. Notice that this does not cause the security issue described in #7256. Here is the complete list of those types: - `std::crypto::secp256k1::Secp256k1` - `std::crypto::secp256r1::Secp256r1` - `std::crypto::message::Message` - `std::crypto::public_key::PublicKey` - `std::b512::B512` Some of the implementations differ based on the combination of `const_generics` and `new_hashing` features. Therefore, on CI, we have a step testing both experimental features together. Additionally, the PR: - adds missing `Hash` implementations for string arrays (`str[N]`). - adds testing of `const_generics` experimental feature to CI. ## Checklist - [x] I have linked to any relevant issues. - [x] I have commented my code, particularly in hard-to-understand areas. - [ ] I have updated the documentation where relevant (API docs, the reference, and the Sway book). - [ ] If my change requires substantial documentation changes, I have [requested support from the DevRel team](https://github.com/FuelLabs/devrel-requests/issues/new/choose) - [x] I have added tests that prove my fix is effective or that my feature works. - [x] I have added (or requested a maintainer to add) the necessary `Breaking*` or `New Feature` labels where relevant. - [x] I have done my best to ensure that my PR adheres to [the Fuel Labs Code Review Standards](https://github.com/FuelLabs/rfcs/blob/master/text/code-standards/external-contributors.md). - [x] I have requested a review from the relevant team or maintainers.		2025-07-11 14:39:29 +12:00
..
src	Implement new hashing (#7259)	2025-07-11 14:39:29 +12:00
Cargo.toml	Fix source dependencies preventing release (#7012)	2025-03-11 18:54:51 +04:00