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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/borrowck/issue-47215-ice-from-drop-elab.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/borrowck/issue-47215-ice-from-drop-elab.rs')
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diff --git a/src/test/ui/borrowck/issue-47215-ice-from-drop-elab.rs b/src/test/ui/borrowck/issue-47215-ice-from-drop-elab.rs
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+// rust-lang/rust#47215: at one time, the compiler categorized
+// thread-local statics as a temporary rvalue, as a way to enforce
+// that they are only valid for a given lifetime.
+//
+// The problem with this is that you cannot move out of static items,
+// but you *can* move temporary rvalues. I.e., the categorization
+// above only solves half of the problem presented by thread-local
+// statics.
+
+#![feature(thread_local)]
+
+#[thread_local]
+static mut X: ::std::sync::atomic::AtomicUsize = ::std::sync::atomic::AtomicUsize::new(0);
+
+fn main() {
+ unsafe {
+ let mut x = X; //~ ERROR cannot move out of static item `X` [E0507]
+ let _y = x.get_mut();
+ }
+}