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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/span/regions-infer-borrow-scope-within-loop.rs
parentInitial commit. (diff)
downloadrustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz
rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/span/regions-infer-borrow-scope-within-loop.rs')
-rw-r--r--src/test/ui/span/regions-infer-borrow-scope-within-loop.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/span/regions-infer-borrow-scope-within-loop.rs b/src/test/ui/span/regions-infer-borrow-scope-within-loop.rs
new file mode 100644
index 000000000..3b20285b1
--- /dev/null
+++ b/src/test/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() {}