mirror of https://github.com/rust-lang/rust
29 lines
672 B
Rust
29 lines
672 B
Rust
// This issue reproduces an ICE on compile (E.g. fails on 2018-12-19 nightly).
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// "cannot relate bound region: ReBound(DebruijnIndex(1), BrAnon(1)) <= '?1"
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//@ run-pass
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//@ edition:2018
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#![feature(coroutines,coroutine_trait)]
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use std::ops::Coroutine;
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fn with<F>(f: F) -> impl Coroutine<Yield=(), Return=()>
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where F: Fn() -> ()
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{
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#[coroutine] move || {
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loop {
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match f() {
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_ => yield,
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}
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}
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}
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}
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fn main() {
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let data = &vec![1];
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#[coroutine] || { //~ WARN unused coroutine that must be used
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let _to_pin = with(move || println!("{:p}", data));
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loop {
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yield
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}
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};
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}
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