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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:03 +0000
commit64d98f8ee037282c35007b64c2649055c56af1db (patch)
tree5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/ui/consts/const-eval/mod-static-with-const-fn.rs
parentAdding debian version 1.67.1+dfsg1-1. (diff)
downloadrustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz
rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/consts/const-eval/mod-static-with-const-fn.rs')
-rw-r--r--tests/ui/consts/const-eval/mod-static-with-const-fn.rs22
1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/consts/const-eval/mod-static-with-const-fn.rs b/tests/ui/consts/const-eval/mod-static-with-const-fn.rs
new file mode 100644
index 000000000..b6b74e67d
--- /dev/null
+++ b/tests/ui/consts/const-eval/mod-static-with-const-fn.rs
@@ -0,0 +1,22 @@
+// New test for #53818: modifying static memory at compile-time is not allowed.
+// The test should never compile successfully
+
+#![feature(const_mut_refs)]
+
+use std::cell::UnsafeCell;
+
+struct Foo(UnsafeCell<u32>);
+
+unsafe impl Send for Foo {}
+unsafe impl Sync for Foo {}
+
+static FOO: Foo = Foo(UnsafeCell::new(42));
+
+static BAR: () = unsafe {
+ *FOO.0.get() = 5;
+ //~^ ERROR could not evaluate static initializer
+};
+
+fn main() {
+ println!("{}", unsafe { *FOO.0.get() });
+}