diff --git a/src/test/run-pass/generator/issue-57084.rs b/src/test/run-pass/generator/issue-57084.rs new file mode 100644 index 0000000000000..8aaa6a0e427d1 --- /dev/null +++ b/src/test/run-pass/generator/issue-57084.rs @@ -0,0 +1,28 @@ +// This issue reproduces an ICE on compile (E.g. fails on 2018-12-19 nightly). +// "cannot relate bound region: ReLateBound(DebruijnIndex(1), BrAnon(1)) <= '_#1r" +// run-pass +// edition:2018 +#![feature(generators,generator_trait)] +use std::ops::Generator; + +fn with(f: F) -> impl Generator +where F: Fn() -> () +{ + move || { + loop { + match f() { + _ => yield, + } + } + } +} + +fn main() { + let data = &vec![1]; + || { + let _to_pin = with(move || println!("{:p}", data)); + loop { + yield + } + }; +}