29 lines
650 B
Rust
29 lines
650 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: ReLateBound(DebruijnIndex(1), BrAnon(1)) <= '_#1r"
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// run-pass
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// edition:2018
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#![feature(generators,generator_trait)]
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use std::ops::Generator;
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fn with<F>(f: F) -> impl Generator<Yield=(), Return=()>
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where F: Fn() -> ()
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{
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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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|| { //~ WARN unused generator 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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