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add state example

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This commit is contained in:
Nikolay Kim 2019-03-02 22:11:24 -08:00
parent d5c54a1867
commit 115b30d9cc
2 changed files with 31 additions and 55 deletions
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21
src/app.rs
View File

@ -79,6 +79,27 @@ where
/// multiple times. If you want to share state between different /// multiple times. If you want to share state between different
/// threads, a shared object should be used, e.g. `Arc`. Application /// threads, a shared object should be used, e.g. `Arc`. Application
/// state does not need to be `Send` or `Sync`. /// state does not need to be `Send` or `Sync`.
///
/// ```rust
/// use std::cell::Cell;
/// use actix_web::{web, State, App};
///
/// struct MyState {
/// counter: Cell<usize>,
/// }
///
/// fn index(state: State<MyState>) {
/// state.counter.set(state.counter.get() + 1);
/// }
///
/// fn main() {
/// let app = App::new()
/// .state(MyState{ counter: Cell::new(0) })
/// .resource(
/// "/index.html",
/// |r| r.route(web::get().to(index)));
/// }
/// ```
pub fn state<S: 'static>(mut self, state: S) -> Self { pub fn state<S: 'static>(mut self, state: S) -> Self {
self.state.push(Box::new(State::new(state))); self.state.push(Box::new(State::new(state)));
self self

65
src/extractor.rs
View File

@ -938,66 +938,21 @@ impl<P> FromRequest<P> for () {
} }
} }
#[rustfmt::skip]
mod m {
use super::*;
tuple_from_req!(TupleFromRequest1, (0, A)); tuple_from_req!(TupleFromRequest1, (0, A));
tuple_from_req!(TupleFromRequest2, (0, A), (1, B)); tuple_from_req!(TupleFromRequest2, (0, A), (1, B));
tuple_from_req!(TupleFromRequest3, (0, A), (1, B), (2, C)); tuple_from_req!(TupleFromRequest3, (0, A), (1, B), (2, C));
tuple_from_req!(TupleFromRequest4, (0, A), (1, B), (2, C), (3, D)); tuple_from_req!(TupleFromRequest4, (0, A), (1, B), (2, C), (3, D));
tuple_from_req!(TupleFromRequest5, (0, A), (1, B), (2, C), (3, D), (4, E)); tuple_from_req!(TupleFromRequest5, (0, A), (1, B), (2, C), (3, D), (4, E));
tuple_from_req!( tuple_from_req!(TupleFromRequest6, (0, A), (1, B), (2, C), (3, D), (4, E), (5, F));
TupleFromRequest6, tuple_from_req!(TupleFromRequest7, (0, A), (1, B), (2, C), (3, D), (4, E), (5, F), (6, G));
(0, A), tuple_from_req!(TupleFromRequest8, (0, A), (1, B), (2, C), (3, D), (4, E), (5, F), (6, G), (7, H));
(1, B), tuple_from_req!(TupleFromRequest9, (0, A), (1, B), (2, C), (3, D), (4, E), (5, F), (6, G), (7, H), (8, I));
(2, C), tuple_from_req!(TupleFromRequest10, (0, A), (1, B), (2, C), (3, D), (4, E), (5, F), (6, G), (7, H), (8, I), (9, J));
(3, D), }
(4, E),
(5, F)
);
tuple_from_req!(
TupleFromRequest7,
(0, A),
(1, B),
(2, C),
(3, D),
(4, E),
(5, F),
(6, G)
);
tuple_from_req!(
TupleFromRequest8,
(0, A),
(1, B),
(2, C),
(3, D),
(4, E),
(5, F),
(6, G),
(7, H)
);
tuple_from_req!(
TupleFromRequest9,
(0, A),
(1, B),
(2, C),
(3, D),
(4, E),
(5, F),
(6, G),
(7, H),
(8, I)
);
tuple_from_req!(
TupleFromRequest10,
(0, A),
(1, B),
(2, C),
(3, D),
(4, E),
(5, F),
(6, G),
(7, H),
(8, I),
(9, J)
);
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {