Derive Macro dilib::Inject

#[derive(Inject)]
{
    // Attributes available to this derive:
    #[inject]
}

Provides an implementation of the Inject trait for the given type.

Configuration

You can use #[inject] on the fields to configure how the values are injected.

• #[inject(name="name")]: To get a named dependency.
• #[inject(default)]: To set Default::default() for the field.
• #[inject(default=literal)]: To set the literal value for the field.
• #[inject(constructor=name(arg1, arg2, ...))]: To set the constructor to use.
• #[inject(scope="scoped")]: To get a scoped dependency. This is the default.
• #[inject(scope="singleton")]: To get a singleton dependency. If the field type is Arc<T> or Singleton<T> this is the default.

Example

use std::sync::{Arc, Mutex};
use dilib_derive::Inject;

#[derive(Inject)]
#[inject(constructor="new(counter, api_key, id)")]
struct MyService {
    #[inject(default=1_usize)]
    id: usize,

    #[inject(name="API_KEY")]
    api_key: String,

    #[inject(scope="singleton")]
    counter: Arc<Mutex<usize>>
}

impl MyService {
    pub fn new(counter: Arc<Mutex<usize>>, api_key: String, id: usize) -> Self {
        MyService { counter, api_key, id }
    }
}