summaryrefslogtreecommitdiffstats
path: root/tests/ui/span/regions-infer-borrow-scope-within-loop.rs
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
commit218caa410aa38c29984be31a5229b9fa717560ee (patch)
treec54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/span/regions-infer-borrow-scope-within-loop.rs
parentReleasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff)
downloadrustc-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/span/regions-infer-borrow-scope-within-loop.rs')
-rw-r--r--tests/ui/span/regions-infer-borrow-scope-within-loop.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/span/regions-infer-borrow-scope-within-loop.rs b/tests/ui/span/regions-infer-borrow-scope-within-loop.rs
new file mode 100644
index 000000000..3b20285b1
--- /dev/null
+++ b/tests/ui/span/regions-infer-borrow-scope-within-loop.rs
@@ -0,0 +1,22 @@
+fn borrow<T>(x: &T) -> &T {x}
+
+fn foo<C, M>(mut cond: C, mut make_box: M) where
+ C: FnMut() -> bool,
+ M: FnMut() -> Box<isize>,
+{
+ let mut y: &isize;
+ loop {
+ let x = make_box();
+
+ // Here we complain because the resulting region
+ // of this borrow is the fn body as a whole.
+ y = borrow(&*x);
+ //~^ ERROR `*x` does not live long enough
+
+ assert_eq!(*x, *y);
+ if cond() { break; }
+ }
+ assert!(*y != 0);
+}
+
+fn main() {}