mirror of https://github.com/rust-lang/rust
41 lines
1.5 KiB
Plaintext
41 lines
1.5 KiB
Plaintext
LL| |#![feature(coroutines, coroutine_trait, stmt_expr_attributes)]
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LL| |#![allow(unused_assignments)]
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LL| |
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LL| |use std::ops::{Coroutine, CoroutineState};
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LL| |use std::pin::Pin;
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LL| |
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LL| 1|fn main() {
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LL| 1| let mut coroutine = #[coroutine]
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LL| 1| || {
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LL| 1| yield 1;
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LL| 1| return "foo";
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LL| 1| };
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LL| |
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LL| 1| match Pin::new(&mut coroutine).resume(()) {
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LL| 1| CoroutineState::Yielded(1) => {}
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LL| 0| _ => panic!("unexpected value from resume"),
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LL| | }
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LL| 1| match Pin::new(&mut coroutine).resume(()) {
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LL| 1| CoroutineState::Complete("foo") => {}
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LL| 0| _ => panic!("unexpected value from resume"),
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LL| | }
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LL| |
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LL| 1| let mut coroutine = #[coroutine]
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LL| 1| || {
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LL| 1| yield 1;
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LL| 1| yield 2;
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LL| 0| yield 3;
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LL| 0| return "foo";
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LL| 0| };
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LL| |
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LL| 1| match Pin::new(&mut coroutine).resume(()) {
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LL| 1| CoroutineState::Yielded(1) => {}
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LL| 0| _ => panic!("unexpected value from resume"),
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LL| | }
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LL| 1| match Pin::new(&mut coroutine).resume(()) {
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LL| 1| CoroutineState::Yielded(2) => {}
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LL| 0| _ => panic!("unexpected value from resume"),
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LL| | }
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LL| 1|}
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