rust/tests/coverage/yield.rs
Zalathar 9dc6e08279 Manually run x fmt on all source files in tests/coverage/
Currently we can't automatically enforce formatting on tests (see #125637), but
we can at least keep things relatively tidy by occasionally running the
formatter manually.

This was done by temporarily commenting out the `"/tests/"` exclusion in
`rustfmt.toml`, and then running `x fmt tests/coverage` and
`x test coverage --bless`.
2024-05-29 14:34:17 +10:00

40 lines
989 B
Rust

#![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
#![allow(unused_assignments)]
use std::ops::{Coroutine, CoroutineState};
use std::pin::Pin;
fn main() {
let mut coroutine = #[coroutine]
|| {
yield 1;
return "foo";
};
match Pin::new(&mut coroutine).resume(()) {
CoroutineState::Yielded(1) => {}
_ => panic!("unexpected value from resume"),
}
match Pin::new(&mut coroutine).resume(()) {
CoroutineState::Complete("foo") => {}
_ => panic!("unexpected value from resume"),
}
let mut coroutine = #[coroutine]
|| {
yield 1;
yield 2;
yield 3;
return "foo";
};
match Pin::new(&mut coroutine).resume(()) {
CoroutineState::Yielded(1) => {}
_ => panic!("unexpected value from resume"),
}
match Pin::new(&mut coroutine).resume(()) {
CoroutineState::Yielded(2) => {}
_ => panic!("unexpected value from resume"),
}
}