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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/closures/2229_closure_analysis/run_pass/lit-pattern-matching-with-methods.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/closures/2229_closure_analysis/run_pass/lit-pattern-matching-with-methods.rs')
-rw-r--r-- | tests/ui/closures/2229_closure_analysis/run_pass/lit-pattern-matching-with-methods.rs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tests/ui/closures/2229_closure_analysis/run_pass/lit-pattern-matching-with-methods.rs b/tests/ui/closures/2229_closure_analysis/run_pass/lit-pattern-matching-with-methods.rs new file mode 100644 index 000000000..d2375aa69 --- /dev/null +++ b/tests/ui/closures/2229_closure_analysis/run_pass/lit-pattern-matching-with-methods.rs @@ -0,0 +1,30 @@ +// edition:2021 +//check-pass +#![warn(unused)] +#![feature(rustc_attrs)] +#![feature(btree_drain_filter)] + +use std::collections::BTreeMap; +use std::panic::{catch_unwind, AssertUnwindSafe}; + +fn main() { + let mut map = BTreeMap::new(); + map.insert("a", ()); + map.insert("b", ()); + map.insert("c", ()); + + { + let mut it = map.drain_filter(|_, _| true); + catch_unwind(AssertUnwindSafe(|| while it.next().is_some() {})).unwrap_err(); + let result = catch_unwind(AssertUnwindSafe(|| it.next())); + assert!(matches!(result, Ok(None))); + } + + { + let mut it = map.drain_filter(|_, _| true); + catch_unwind(AssertUnwindSafe(|| while let Some(_) = it.next() {})).unwrap_err(); + let result = catch_unwind(AssertUnwindSafe(|| it.next())); + assert!(matches!(result, Ok(None))); + } + +} |