async_injector_derive/
lib.rs

1//! [<img alt="github" src="https://img.shields.io/badge/github-udoprog/async--injector-8da0cb?style=for-the-badge&logo=github" height="20">](https://github.com/udoprog/async-injector)
2//! [<img alt="crates.io" src="https://img.shields.io/crates/v/async-injector-derive.svg?style=for-the-badge&color=fc8d62&logo=rust" height="20">](https://crates.io/crates/async-injector-derive)
3//! [<img alt="docs.rs" src="https://img.shields.io/badge/docs.rs-async--injector--derive-66c2a5?style=for-the-badge&logoColor=white&logo=data:image/svg+xml;base64,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" height="20">](https://docs.rs/async-injector-derive)
4//!
5//! Macros for [async-injector](https://docs.rs/async-injector).
6//!
7//! This provides the [Provider] derive, which can be used to automatically
8//! construct and inject dependencies. See its documentation for how to use.
9//!
10//! [Provider]: https://docs.rs/async-injector/latest/async_injector/derive.Provider.html
11
12mod implement;
13
14#[proc_macro_derive(Provider, attributes(dependency))]
15pub fn provider_derive(input: proc_macro::TokenStream) -> proc_macro::TokenStream {
16    let ast = syn::parse_macro_input!(input as syn::DeriveInput);
17
18    let cx = implement::Ctxt::default();
19
20    if let Ok(tokens) = implement::implement(&cx, &ast) {
21        return tokens.into();
22    }
23
24    cx.into_errors().into()
25}