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rust-bitcoin-unsafe-fast/io/Cargo.toml

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Add a `bitcoin_io` crate In order to support standard (de)serialization of structs, the `rust-bitcoin` ecosystem uses the standard `std::io::{Read,Write}` traits. This works great for environments with `std`, however sadly the `std::io` module has not yet been added to the `core` crate. Thus, in `no-std`, the `rust-bitcoin` ecosystem has historically used the `core2` crate to provide copies of the `std::io` module without any major dependencies. Sadly, its one dependency, `memchr`, recently broke our MSRV. Worse, because we didn't want to take on any excess dependencies for `std` builds, `rust-bitcoin` has had to have mutually-exclusive `std` and `no-std` builds. This breaks general assumptions about how features work in Rust, causing substantial pain for applications far downstream of `rust-bitcoin` crates. Here, we add a new `bitcoin_io` crate, making it an unconditional dependency and using its `io` module in the in-repository crates in place of `std::io` and `core2::io`. As it is not substantial additional code, the `hashes` io implementations are no longer feature-gated. This doesn't actually accomplish anything on its own, only adding the new crate which still depends on `core2`.
2023-10-04 05:51:26 +00:00
[package]
name = "bitcoin-io"
version = "0.1.0"
authors = ["Matt Corallo <birchneutea@mattcorallo.com>"]
license = "CC0-1.0"
repository = "https://github.com/rust-bitcoin/rust-bitcoin"
documentation = "https://docs.rs/bitcoin-io/"
description = "Simple I/O traits for no-std (and std) environments"
categories = ["no-std"]
keywords = [ "io", "no-std" ]
readme = "README.md"
edition = "2018"
exclude = ["tests", "contrib"]
[features]
default = ["std"]
std = []
alloc = ["core2/alloc"]
[package.metadata.docs.rs]
all-features = true
rustdoc-args = ["--cfg", "docsrs"]
[dependencies]
core2 = { version = "0.3", default-features = false, optional = true }