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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/once-cant-call-twice-on-heap.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/once-cant-call-twice-on-heap.rs')
-rw-r--r--src/test/ui/once-cant-call-twice-on-heap.rs17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/once-cant-call-twice-on-heap.rs b/src/test/ui/once-cant-call-twice-on-heap.rs
new file mode 100644
index 000000000..3fd8c5cad
--- /dev/null
+++ b/src/test/ui/once-cant-call-twice-on-heap.rs
@@ -0,0 +1,17 @@
+// Testing guarantees provided by once functions.
+// This program would segfault if it were legal.
+
+use std::sync::Arc;
+
+fn foo<F:FnOnce()>(blk: F) {
+ blk();
+ blk(); //~ ERROR use of moved value
+}
+
+fn main() {
+ let x = Arc::new(true);
+ foo(move|| {
+ assert!(*x);
+ drop(x);
+ });
+}