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use crate::get_module_from_state;
use rocket::outcome::IntoOutcome;
use rocket::request::{FromRequest, Outcome};
use rocket::{http::Status, Request};
use shaku::{HasProvider, Module};
use std::marker::PhantomData;
use std::ops::Deref;
pub struct InjectProvided<M: Module + HasProvider<I>, I: ?Sized>(Box<I>, PhantomData<M>);
impl<'a, 'r, M: Module + HasProvider<I>, I: ?Sized> FromRequest<'a, 'r> for InjectProvided<M, I> {
type Error = String;
fn from_request(request: &'a Request<'r>) -> Outcome<Self, Self::Error> {
let module = get_module_from_state::<M>(request)?;
let service = module
.inner()
.provide()
.map_err(|e| e.to_string())
.into_outcome(Status::InternalServerError)?;
Outcome::Success(InjectProvided(service, PhantomData))
}
}
impl<M: Module + HasProvider<I>, I: ?Sized> Deref for InjectProvided<M, I> {
type Target = I;
fn deref(&self) -> &Self::Target {
self.0.deref()
}
}