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Rocket
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Replace uses of `FnBox`; `Box<dyn FnOnce>` now implements `FnOnce`.

This commit is contained in:
Konrad Borowski 2018-12-09 20:24:37 +01:00 committed by Jeb Rosen
parent 9b219ddc01
commit 7ab1c427b5
3 changed files with 14 additions and 14 deletions
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4
core/lib/build.rs
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@ -8,8 +8,8 @@ use yansi::Color::{Red, Yellow, Blue};
use version_check::{supports_features, is_min_version, is_min_date}; use version_check::{supports_features, is_min_version, is_min_date};
// Specifies the minimum nightly version needed to compile Rocket. // Specifies the minimum nightly version needed to compile Rocket.
const MIN_DATE: &'static str = "2019-02-25"; const MIN_DATE: &'static str = "2019-04-05";
const MIN_VERSION: &'static str = "1.34.0-nightly"; const MIN_VERSION: &'static str = "1.35.0-nightly";
fn main() { fn main() {
let ok_channel = supports_features(); let ok_channel = supports_features();

23
core/lib/src/fairing/ad_hoc.rs
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@ -1,5 +1,4 @@
use std::sync::Mutex; use std::sync::Mutex;
use std::boxed::FnBox;
use {Rocket, Request, Response, Data}; use {Rocket, Request, Response, Data};
use fairing::{Fairing, Kind, Info}; use fairing::{Fairing, Kind, Info};
@ -43,14 +42,14 @@ pub struct AdHoc {
enum AdHocKind { enum AdHocKind {
/// An ad-hoc **attach** fairing. Called when the fairing is attached. /// An ad-hoc **attach** fairing. Called when the fairing is attached.
Attach(Mutex<Option<Box<FnBox(Rocket) -> Result<Rocket, Rocket> + Send + 'static>>>), Attach(Mutex<Option<Box<dyn FnOnce(Rocket) -> Result<Rocket, Rocket> + Send + 'static>>>),
/// An ad-hoc **launch** fairing. Called just before Rocket launches. /// An ad-hoc **launch** fairing. Called just before Rocket launches.
Launch(Mutex<Option<Box<FnBox(&Rocket) + Send + 'static>>>), Launch(Mutex<Option<Box<dyn FnOnce(&Rocket) + Send + 'static>>>),
/// An ad-hoc **request** fairing. Called when a request is received. /// An ad-hoc **request** fairing. Called when a request is received.
Request(Box<Fn(&mut Request, &Data) + Send + Sync + 'static>), Request(Box<dyn Fn(&mut Request, &Data) + Send + Sync + 'static>),
/// An ad-hoc **response** fairing. Called when a response is ready to be /// An ad-hoc **response** fairing. Called when a response is ready to be
/// sent to a client. /// sent to a client.
Response(Box<Fn(&Request, &mut Response) + Send + Sync + 'static>), Response(Box<dyn Fn(&Request, &mut Response) + Send + Sync + 'static>),
} }
impl AdHoc { impl AdHoc {
@ -146,9 +145,10 @@ impl Fairing for AdHoc {
fn on_attach(&self, rocket: Rocket) -> Result<Rocket, Rocket> { fn on_attach(&self, rocket: Rocket) -> Result<Rocket, Rocket> {
if let AdHocKind::Attach(ref mutex) = self.kind { if let AdHocKind::Attach(ref mutex) = self.kind {
let mut option = mutex.lock().expect("AdHoc::Attach lock"); let mut option = mutex.lock().expect("AdHoc::Attach lock");
option.take() let f = option
.expect("internal error: `on_attach` single-call invariant broken") .take()
.call_box((rocket,)) .expect("internal error: `on_attach` single-call invariant broken");
f(rocket)
} else { } else {
Ok(rocket) Ok(rocket)
} }
@ -157,9 +157,10 @@ impl Fairing for AdHoc {
fn on_launch(&self, rocket: &Rocket) { fn on_launch(&self, rocket: &Rocket) {
if let AdHocKind::Launch(ref mutex) = self.kind { if let AdHocKind::Launch(ref mutex) = self.kind {
let mut option = mutex.lock().expect("AdHoc::Launch lock"); let mut option = mutex.lock().expect("AdHoc::Launch lock");
option.take() let f = option
.expect("internal error: `on_launch` single-call invariant broken") .take()
.call_box((rocket, )) .expect("internal error: `on_launch` single-call invariant broken");
f(rocket)
} }
} }

1
core/lib/src/lib.rs
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@ -1,7 +1,6 @@
#![feature(specialization)] #![feature(specialization)]
#![feature(decl_macro)] #![feature(decl_macro)]
#![feature(try_trait)] #![feature(try_trait)]
#![feature(fnbox)]
#![feature(never_type)] #![feature(never_type)]
#![feature(proc_macro_hygiene)] #![feature(proc_macro_hygiene)]
#![feature(crate_visibility_modifier)] #![feature(crate_visibility_modifier)]