Use array-bytes everywhere

[AurevoirXavier]

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Motivation

Continue paritytech/substrate#12190.

And there are numerous hex crates in this codespace which is perplexing.

array-bytes, hex, hex-literal, rustc_hex.

And such re-implementation can be found at

polkadot-sdk/substrate/primitives/core/src/const_hex2array.rs

Line 47 in 586ab7f

pub const fn private_hex2array<const N: usize>(hex: &str) -> [u8; N] {

, and more..

Request

Recently, I released array-bytes v8.0.0.

Its performance is as fast as faster-hex. With smallvec, it's even faster than faster-hex in some cases.

It's pure no_std (without the need to specify default-features = false). Pretty polkadot-sdk friendly.

It provides a lot of array/bytes helper functions.

It has easy-to-understand API names. (e.g. hex2bytes, bytes2hex, vec2array..)

It has fuzz test.

Basically, it's designed for Substrate at the beginning.

Solution

use array_bytes;

Are you willing to help with this request?

Yes!

[bkchr]

And such re-implementation can be found at

The reimplementation exists because it is a const fn. Would be nice if array-bytes could provide const versions as well.