From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- .../consts/const-eval/mod-static-with-const-fn.rs | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 tests/ui/consts/const-eval/mod-static-with-const-fn.rs (limited to 'tests/ui/consts/const-eval/mod-static-with-const-fn.rs') 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); + +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() }); +} -- cgit v1.2.3