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Diffstat (limited to 'src/test/ui/consts/const-mut-refs/mut_ref_in_final.rs')
-rw-r--r--src/test/ui/consts/const-mut-refs/mut_ref_in_final.rs55
1 files changed, 0 insertions, 55 deletions
diff --git a/src/test/ui/consts/const-mut-refs/mut_ref_in_final.rs b/src/test/ui/consts/const-mut-refs/mut_ref_in_final.rs
deleted file mode 100644
index a7d329f12..000000000
--- a/src/test/ui/consts/const-mut-refs/mut_ref_in_final.rs
+++ /dev/null
@@ -1,55 +0,0 @@
-#![feature(const_mut_refs)]
-#![feature(raw_ref_op)]
-
-const NULL: *mut i32 = std::ptr::null_mut();
-const A: *const i32 = &4;
-
-// It could be made sound to allow it to compile,
-// but we do not want to allow this to compile,
-// as that would be an enormous footgun in oli-obk's opinion.
-const B: *mut i32 = &mut 4; //~ ERROR mutable references are not allowed
-
-// Ok, no actual mutable allocation exists
-const B2: Option<&mut i32> = None;
-
-// Not ok, can't prove that no mutable allocation ends up in final value
-const B3: Option<&mut i32> = Some(&mut 42); //~ ERROR temporary value dropped while borrowed
-
-const fn helper(x: &mut i32) -> Option<&mut i32> { Some(x) }
-const B4: Option<&mut i32> = helper(&mut 42); //~ ERROR temporary value dropped while borrowed
-
-// Ok, because no references to mutable data exist here, since the `{}` moves
-// its value and then takes a reference to that.
-const C: *const i32 = &{
- let mut x = 42;
- x += 3;
- x
-};
-
-use std::cell::UnsafeCell;
-struct NotAMutex<T>(UnsafeCell<T>);
-
-unsafe impl<T> Sync for NotAMutex<T> {}
-
-const FOO: NotAMutex<&mut i32> = NotAMutex(UnsafeCell::new(&mut 42));
-//~^ ERROR temporary value dropped while borrowed
-
-static FOO2: NotAMutex<&mut i32> = NotAMutex(UnsafeCell::new(&mut 42));
-//~^ ERROR temporary value dropped while borrowed
-
-static mut FOO3: NotAMutex<&mut i32> = NotAMutex(UnsafeCell::new(&mut 42));
-//~^ ERROR temporary value dropped while borrowed
-
-// `BAR` works, because `&42` promotes immediately instead of relying on
-// the enclosing scope rule.
-const BAR: NotAMutex<&i32> = NotAMutex(UnsafeCell::new(&42));
-
-fn main() {
- println!("{}", unsafe { *A });
- unsafe { *B = 4 } // Bad news
-
- unsafe {
- **FOO.0.get() = 99;
- assert_eq!(**FOO.0.get(), 99);
- }
-}