Remove explicit rand dependency#151
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rustaceanrob merged 1 commit intorust-bitcoin:mainfrom Aug 14, 2025
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We only bring in `rand` explicitly for the `Rng` trait, coming from `RngCore`. The `Rng` trait is a nightmare to implement, and we only use a single call to `.fill`. If we export a far simpler trait that represents filling a 32 byte slice, then users can have a far easier time implementing this trait. This has come up in the past with this project: https://github.com/issues/recent?issue=alfred-hodler%7Cpushtx%7C3 This also removes the need for `rand` as a dependency at all, and it may be brought in through `bitcoin` (or later `secp256k1`)
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| #[cfg(feature = "std")] | ||
| macro_rules! impl_fill_bytes { |
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When I see macros:
But this one seems good since small and contained.
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We only bring in
randexplicitly for theRngtrait, coming fromRngCore. TheRngtrait is a nightmare to implement, and we only use a single call to.fill. If we export a far simpler trait that represents filling a 32 byte slice, then users can have a far easier time implementing this trait. This has come up in the past with this project: alfred-hodler/pushtx#3This also removes the need for
randas a dependency at all, and it may be brought in throughbitcoin(or latersecp256k1)AFICT this can be merged now.