borrow_interior_mutable_const ICE into FN (#13877)
This PR just makes sure that we exit the function before getting an ICE and adds a regression test. Related to #12979. We would need to keep researching the issue, but as the ICEing code isn't that complicated, getting a hotfix into nightly is urgent. changelog:[`borrow_interior_mutable_const`] Fix ICE #12979
This commit is contained in:
Fridtjof Stoldt
GitHub
commit
f5f1abd8fb
3 changed files with 31 additions and 19 deletions
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@ -47,6 +47,17 @@ impl<T> std::ops::Deref for StaticRef<T> {
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}
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}
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// ICE regression test
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mod issue12979 {
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use std::cell::UnsafeCell;
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const ATOMIC_TUPLE: (Vec<UnsafeCell<u8>>, ()) = (Vec::new(), ());
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fn main() {
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let _x = &ATOMIC_TUPLE.0;
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}
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}
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// use a tuple to make sure referencing a field behind a pointer isn't linted.
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const CELL_REF: StaticRef<(UnsafeCell<u32>,)> = unsafe { StaticRef::new(std::ptr::null()) };
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@ -1,5 +1,5 @@
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:54:5
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--> tests/ui/borrow_interior_mutable_const/others.rs:65:5
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LL | ATOMIC.store(1, Ordering::SeqCst);
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| ^^^^^^
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@ -12,7 +12,7 @@ LL | #![deny(clippy::borrow_interior_mutable_const)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:55:16
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--> tests/ui/borrow_interior_mutable_const/others.rs:66:16
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LL | assert_eq!(ATOMIC.load(Ordering::SeqCst), 5);
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| ^^^^^^
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@ -20,7 +20,7 @@ LL | assert_eq!(ATOMIC.load(Ordering::SeqCst), 5);
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:58:22
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--> tests/ui/borrow_interior_mutable_const/others.rs:69:22
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LL | let _once_ref = &ONCE_INIT;
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| ^^^^^^^^^
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@ -28,7 +28,7 @@ LL | let _once_ref = &ONCE_INIT;
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:59:25
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--> tests/ui/borrow_interior_mutable_const/others.rs:70:25
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LL | let _once_ref_2 = &&ONCE_INIT;
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| ^^^^^^^^^
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@ -36,7 +36,7 @@ LL | let _once_ref_2 = &&ONCE_INIT;
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:60:27
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--> tests/ui/borrow_interior_mutable_const/others.rs:71:27
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LL | let _once_ref_4 = &&&&ONCE_INIT;
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| ^^^^^^^^^
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@ -44,7 +44,7 @@ LL | let _once_ref_4 = &&&&ONCE_INIT;
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:61:26
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--> tests/ui/borrow_interior_mutable_const/others.rs:72:26
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LL | let _once_mut = &mut ONCE_INIT;
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| ^^^^^^^^^
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@ -52,7 +52,7 @@ LL | let _once_mut = &mut ONCE_INIT;
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:72:14
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--> tests/ui/borrow_interior_mutable_const/others.rs:83:14
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LL | let _ = &ATOMIC_TUPLE;
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| ^^^^^^^^^^^^
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@ -60,7 +60,7 @@ LL | let _ = &ATOMIC_TUPLE;
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:73:14
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--> tests/ui/borrow_interior_mutable_const/others.rs:84:14
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LL | let _ = &ATOMIC_TUPLE.0;
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| ^^^^^^^^^^^^
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@ -68,7 +68,7 @@ LL | let _ = &ATOMIC_TUPLE.0;
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:74:19
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--> tests/ui/borrow_interior_mutable_const/others.rs:85:19
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LL | let _ = &(&&&&ATOMIC_TUPLE).0;
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| ^^^^^^^^^^^^
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@ -76,7 +76,7 @@ LL | let _ = &(&&&&ATOMIC_TUPLE).0;
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:75:14
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--> tests/ui/borrow_interior_mutable_const/others.rs:86:14
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LL | let _ = &ATOMIC_TUPLE.0[0];
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| ^^^^^^^^^^^^
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@ -84,7 +84,7 @@ LL | let _ = &ATOMIC_TUPLE.0[0];
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:76:13
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--> tests/ui/borrow_interior_mutable_const/others.rs:87:13
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LL | let _ = ATOMIC_TUPLE.0[0].load(Ordering::SeqCst);
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| ^^^^^^^^^^^^
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@ -92,7 +92,7 @@ LL | let _ = ATOMIC_TUPLE.0[0].load(Ordering::SeqCst);
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:81:13
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--> tests/ui/borrow_interior_mutable_const/others.rs:92:13
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LL | let _ = ATOMIC_TUPLE.0[0];
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| ^^^^^^^^^^^^
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@ -100,7 +100,7 @@ LL | let _ = ATOMIC_TUPLE.0[0];
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:86:5
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--> tests/ui/borrow_interior_mutable_const/others.rs:97:5
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LL | CELL.set(2);
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| ^^^^
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@ -108,7 +108,7 @@ LL | CELL.set(2);
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= help: assign this const to a local or static variable, and use the variable here
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error: a `const` item with interior mutability should not be borrowed
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--> tests/ui/borrow_interior_mutable_const/others.rs:87:16
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--> tests/ui/borrow_interior_mutable_const/others.rs:98:16
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LL | assert_eq!(CELL.get(), 6);
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| ^^^^
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