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Diffstat (limited to 'src/test/ui/generator/issue-57084.rs')
-rw-r--r-- | src/test/ui/generator/issue-57084.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/generator/issue-57084.rs b/src/test/ui/generator/issue-57084.rs new file mode 100644 index 000000000..2a5c3dd05 --- /dev/null +++ b/src/test/ui/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: F) -> impl Generator<Yield=(), Return=()> +where F: Fn() -> () +{ + move || { + loop { + match f() { + _ => yield, + } + } + } +} + +fn main() { + let data = &vec![1]; + || { //~ WARN unused generator that must be used + let _to_pin = with(move || println!("{:p}", data)); + loop { + yield + } + }; +} |