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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/feature-gates/feature-gate-unsafe_pin_internals.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/feature-gates/feature-gate-unsafe_pin_internals.rs')
-rw-r--r--src/test/ui/feature-gates/feature-gate-unsafe_pin_internals.rs17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/feature-gates/feature-gate-unsafe_pin_internals.rs b/src/test/ui/feature-gates/feature-gate-unsafe_pin_internals.rs
new file mode 100644
index 000000000..0680d2344
--- /dev/null
+++ b/src/test/ui/feature-gates/feature-gate-unsafe_pin_internals.rs
@@ -0,0 +1,17 @@
+// edition:2018
+#![forbid(incomplete_features, unsafe_code)]
+#![feature(unsafe_pin_internals)]
+//~^ ERROR the feature `unsafe_pin_internals` is incomplete and may not be safe to use
+
+use core::{marker::PhantomPinned, pin::Pin};
+
+/// The `unsafe_pin_internals` is indeed unsound.
+fn non_unsafe_pin_new_unchecked<T>(pointer: &mut T) -> Pin<&mut T> {
+ Pin { pointer }
+}
+
+fn main() {
+ let mut self_referential = PhantomPinned;
+ let _: Pin<&mut PhantomPinned> = non_unsafe_pin_new_unchecked(&mut self_referential);
+ core::mem::forget(self_referential); // move and disable drop glue!
+}