// New test for #53818: modifying static memory at compile-time is not allowed. // The test should never compile successfully #![feature(const_raw_ptr_deref)] use std::cell::UnsafeCell; struct Foo(UnsafeCell); unsafe impl Send for Foo {} unsafe impl Sync for Foo {} static FOO: Foo = Foo(UnsafeCell::new(42)); fn foo() {} static BAR: () = unsafe { *FOO.0.get() = 5; //~^ contains unimplemented expression foo(); //~^ ERROR calls in statics are limited to constant functions, tuple structs and tuple variants }; fn main() { println!("{}", unsafe { *FOO.0.get() }); }