accepts

⚠️ Pre-release: version 0.0.2 is experimental. APIs and crate layout may change without backward compatibility guarantees.

accepts is the minimal core for composing synchronous and asynchronous "acceptor" pipelines. It exposes only the traits and blanket implementations you need to wire values through a chain of acceptors. There are no bundled acceptors; those live in sibling crates.

For design details, see ARCHITECTURE.md in this repo.

Naming

This crate only defines the core traits. See ARCHITECTURE.md for series lineup and naming guidelines.

Quickstart

Add the dependency

[dependencies]
accepts = "0.0.2"

• Default features include alloc. Disable defaults for a core-only no_std build: accepts = { version = "0.0.2", default-features = false }. Re-enable alloc if you still want Box/Arc and dyn-async support.

Implement and fan out

use accepts::Accepts;

struct Logger;
impl Accepts<&str> for Logger {
    fn accept(&self, value: &str) {
        println!("[log] {value}");
    }
}

struct Metrics;
impl Accepts<&str> for Metrics {
    fn accept(&self, value: &str) {
        println!("[metrics] saw {value}");
    }
}

// Tuples and collections forward to each element; `&str` is `Copy`, so cloning
// to fan out is cheap.
let pipeline = (Logger, Metrics);
pipeline.accept("ping");

Async pipelines follow the same shape with AsyncAccepts; enable alloc if you want to box the returned futures via DynAsyncAccepts.

Version map

accepts	notes
0.0.2	current pre-release

More

See ARCHITECTURE.md for design notes, feature flags, and blanket impl coverage.

Feature flags

Feature	Default	Description
alloc	✅	Adds heap-backed blanket impls (Box/Rc/Arc), Vec/VecDeque impls, and auto-implements DynAsyncAccepts.

Crate layout

• Accepts, AsyncAccepts, DynAsyncAccepts at the crate root.
• implementations/core/* for no_std blanket impls (tuples, Option, Result, slices/arrays, pointer types).
• implementations/alloc/* for heap-backed impls (Vec, VecDeque, pointers).

License

This project is dual-licensed under MIT and Apache-2.0. You may use it under either license.

Contributing

Bug reports, feature requests, and pull requests are always welcome.

I'm still new to GitHub and not very confident in English. For now, I'm doing my best with the help of ChatGPT, so I might misunderstand something. Thanks for your understanding!