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