diff options
Diffstat (limited to 'tests')
57 files changed, 702 insertions, 372 deletions
diff --git a/tests/ui/abi/statics/static-mut-foreign.rs b/tests/ui/abi/statics/static-mut-foreign.rs index fdd775da578..f32ce8cf085 100644 --- a/tests/ui/abi/statics/static-mut-foreign.rs +++ b/tests/ui/abi/statics/static-mut-foreign.rs @@ -33,9 +33,9 @@ unsafe fn run() { rust_dbg_static_mut = -3; assert_eq!(rust_dbg_static_mut, -3); static_bound(&rust_dbg_static_mut); - //~^ WARN shared reference of mutable static is discouraged [static_mut_ref] + //~^ WARN shared reference to mutable static is discouraged [static_mut_refs] static_bound_set(&mut rust_dbg_static_mut); - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } pub fn main() { diff --git a/tests/ui/abi/statics/static-mut-foreign.stderr b/tests/ui/abi/statics/static-mut-foreign.stderr index 144ac056f87..f393088ff9f 100644 --- a/tests/ui/abi/statics/static-mut-foreign.stderr +++ b/tests/ui/abi/statics/static-mut-foreign.stderr @@ -1,28 +1,28 @@ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/static-mut-foreign.rs:35:18 | LL | static_bound(&rust_dbg_static_mut); - | ^^^^^^^^^^^^^^^^^^^^ shared reference of mutable static + | ^^^^^^^^^^^^^^^^^^^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | static_bound(addr_of!(rust_dbg_static_mut)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/static-mut-foreign.rs:37:22 | LL | static_bound_set(&mut rust_dbg_static_mut); - | ^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference of mutable static + | ^^^^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | LL | static_bound_set(addr_of_mut!(rust_dbg_static_mut)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/tests/ui/borrowck/borrowck-access-permissions.rs b/tests/ui/borrowck/borrowck-access-permissions.rs index 1638644103b..be11286a523 100644 --- a/tests/ui/borrowck/borrowck-access-permissions.rs +++ b/tests/ui/borrowck/borrowck-access-permissions.rs @@ -16,7 +16,7 @@ fn main() { let _y1 = &mut static_x; //~ ERROR [E0596] unsafe { let _y2 = &mut static_x_mut; - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } } diff --git a/tests/ui/borrowck/borrowck-access-permissions.stderr b/tests/ui/borrowck/borrowck-access-permissions.stderr index 93d92295dd9..11e2b63bd6c 100644 --- a/tests/ui/borrowck/borrowck-access-permissions.stderr +++ b/tests/ui/borrowck/borrowck-access-permissions.stderr @@ -1,14 +1,14 @@ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/borrowck-access-permissions.rs:18:23 | LL | let _y2 = &mut static_x_mut; - | ^^^^^^^^^^^^^^^^^ mutable reference of mutable static + | ^^^^^^^^^^^^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of_mut!` instead to create a raw pointer | LL | let _y2 = addr_of_mut!(static_x_mut); | ~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.rs b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.rs index a89cad20f97..b09c96ada8a 100644 --- a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.rs +++ b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.rs @@ -17,7 +17,7 @@ impl Foo { fn main() { unsafe { let sfoo: *mut Foo = &mut SFOO; - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] let x = (*sfoo).x(); (*sfoo).x[1] += 1; *x += 1; diff --git a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr index 7a3824f79a4..354d70eb1ad 100644 --- a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr +++ b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr @@ -1,14 +1,14 @@ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/borrowck-unsafe-static-mutable-borrows.rs:19:30 | LL | let sfoo: *mut Foo = &mut SFOO; - | ^^^^^^^^^ mutable reference of mutable static + | ^^^^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of_mut!` instead to create a raw pointer | LL | let sfoo: *mut Foo = addr_of_mut!(SFOO); | ~~~~~~~~~~~~~~~~~~ diff --git a/tests/ui/borrowck/issue-20801.rs b/tests/ui/borrowck/issue-20801.rs index ec83af5d5df..7e3d3703dc7 100644 --- a/tests/ui/borrowck/issue-20801.rs +++ b/tests/ui/borrowck/issue-20801.rs @@ -12,7 +12,7 @@ fn imm_ref() -> &'static T { fn mut_ref() -> &'static mut T { unsafe { &mut GLOBAL_MUT_T } - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } fn mut_ptr() -> *mut T { diff --git a/tests/ui/borrowck/issue-20801.stderr b/tests/ui/borrowck/issue-20801.stderr index b2bee2d8803..97294afd3df 100644 --- a/tests/ui/borrowck/issue-20801.stderr +++ b/tests/ui/borrowck/issue-20801.stderr @@ -1,14 +1,14 @@ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/issue-20801.rs:14:14 | LL | unsafe { &mut GLOBAL_MUT_T } - | ^^^^^^^^^^^^^^^^^ mutable reference of mutable static + | ^^^^^^^^^^^^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of_mut!` instead to create a raw pointer | LL | unsafe { addr_of_mut!(GLOBAL_MUT_T) } | ~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs b/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs index 9b172b41319..c3909d05963 100644 --- a/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs +++ b/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.rs @@ -10,7 +10,7 @@ mod borrowck_closures_unique { //~^ ERROR is not declared as mutable unsafe { c1(&mut Y); - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } } } @@ -25,7 +25,7 @@ mod borrowck_closures_unique_grandparent { }; unsafe { c1(&mut Z); - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } } } @@ -62,7 +62,7 @@ fn main() { static mut X: isize = 2; unsafe { borrowck_closures_unique::e(&mut X); - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } mutability_errors::capture_assign_whole((1000,)); diff --git a/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.stderr b/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.stderr index e4e4947fce1..098a2964e9f 100644 --- a/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.stderr +++ b/tests/ui/borrowck/issue-55492-borrowck-migrate-scans-parents.stderr @@ -1,42 +1,42 @@ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/issue-55492-borrowck-migrate-scans-parents.rs:12:16 | LL | c1(&mut Y); - | ^^^^^^ mutable reference of mutable static + | ^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of_mut!` instead to create a raw pointer | LL | c1(addr_of_mut!(Y)); | ~~~~~~~~~~~~~~~ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/issue-55492-borrowck-migrate-scans-parents.rs:27:16 | LL | c1(&mut Z); - | ^^^^^^ mutable reference of mutable static + | ^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | LL | c1(addr_of_mut!(Z)); | ~~~~~~~~~~~~~~~ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/issue-55492-borrowck-migrate-scans-parents.rs:64:37 | LL | borrowck_closures_unique::e(&mut X); - | ^^^^^^ mutable reference of mutable static + | ^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | LL | borrowck_closures_unique::e(addr_of_mut!(X)); | ~~~~~~~~~~~~~~~ diff --git a/tests/ui/consts/const_let_assign2.rs b/tests/ui/consts/const_let_assign2.rs index f239507d245..e8ebba7b208 100644 --- a/tests/ui/consts/const_let_assign2.rs +++ b/tests/ui/consts/const_let_assign2.rs @@ -16,7 +16,7 @@ static mut BB: AA = AA::new(); fn main() { let ptr = unsafe { &mut BB }; - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] for a in ptr.data.iter() { println!("{}", a); } diff --git a/tests/ui/consts/const_let_assign2.stderr b/tests/ui/consts/const_let_assign2.stderr index 2764153a8a5..5ae8fd353dd 100644 --- a/tests/ui/consts/const_let_assign2.stderr +++ b/tests/ui/consts/const_let_assign2.stderr @@ -1,14 +1,14 @@ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/const_let_assign2.rs:18:24 | LL | let ptr = unsafe { &mut BB }; - | ^^^^^^^ mutable reference of mutable static + | ^^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of_mut!` instead to create a raw pointer | LL | let ptr = unsafe { addr_of_mut!(BB) }; | ~~~~~~~~~~~~~~~~ diff --git a/tests/ui/consts/const_refs_to_static_fail_invalid.rs b/tests/ui/consts/const_refs_to_static_fail_invalid.rs index 363a6da0901..be1574af588 100644 --- a/tests/ui/consts/const_refs_to_static_fail_invalid.rs +++ b/tests/ui/consts/const_refs_to_static_fail_invalid.rs @@ -1,7 +1,7 @@ //@ normalize-stderr-test "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)" //@ normalize-stderr-test "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" #![feature(const_refs_to_static)] -#![allow(static_mut_ref)] +#![allow(static_mut_refs)] fn invalid() { static S: i8 = 10; @@ -43,8 +43,8 @@ fn mutable() { // This *must not build*, the constant we are matching against // could change its value! match &42 { - C => {}, //~ERROR: could not evaluate constant pattern - _ => {}, + C => {} //~ERROR: could not evaluate constant pattern + _ => {} } } diff --git a/tests/ui/consts/const_refs_to_static_fail_invalid.stderr b/tests/ui/consts/const_refs_to_static_fail_invalid.stderr index 082f8532444..4ff15f0c28b 100644 --- a/tests/ui/consts/const_refs_to_static_fail_invalid.stderr +++ b/tests/ui/consts/const_refs_to_static_fail_invalid.stderr @@ -46,7 +46,7 @@ LL | const C: &i32 = unsafe { &S_MUT }; error: could not evaluate constant pattern --> $DIR/const_refs_to_static_fail_invalid.rs:46:9 | -LL | C => {}, +LL | C => {} | ^ error: aborting due to 6 previous errors diff --git a/tests/ui/consts/issue-17718-const-bad-values.rs b/tests/ui/consts/issue-17718-const-bad-values.rs index e112a346b65..33347d8df62 100644 --- a/tests/ui/consts/issue-17718-const-bad-values.rs +++ b/tests/ui/consts/issue-17718-const-bad-values.rs @@ -1,4 +1,4 @@ -#![allow(static_mut_ref)] +#![allow(static_mut_refs)] const C1: &'static mut [usize] = &mut []; //~^ ERROR: mutable references are not allowed diff --git a/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.rs b/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.rs index 6ec44aab2c1..5e7845e4e82 100644 --- a/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.rs +++ b/tests/ui/consts/miri_unleashed/const_refers_to_static_cross_crate.rs @@ -3,7 +3,7 @@ //@ normalize-stderr-test "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)" //@ normalize-stderr-test "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" #![feature(exclusive_range_pattern, half_open_range_patterns_in_slices)] -#![allow(static_mut_ref)] +#![allow(static_mut_refs)] extern crate static_cross_crate; diff --git a/tests/ui/consts/miri_unleashed/extern-static.rs b/tests/ui/consts/miri_unleashed/extern-static.rs index 1a523cc8e31..c9d9397518e 100644 --- a/tests/ui/consts/miri_unleashed/extern-static.rs +++ b/tests/ui/consts/miri_unleashed/extern-static.rs @@ -1,6 +1,6 @@ //@ compile-flags: -Zunleash-the-miri-inside-of-you #![feature(thread_local)] -#![allow(static_mut_ref)] +#![allow(static_mut_refs)] extern "C" { static mut DATA: u8; diff --git a/tests/ui/consts/miri_unleashed/mutable_references_err.32bit.stderr b/tests/ui/consts/miri_unleashed/mutable_references_err.32bit.stderr index 82739c08cf1..ea7573bf217 100644 --- a/tests/ui/consts/miri_unleashed/mutable_references_err.32bit.stderr +++ b/tests/ui/consts/miri_unleashed/mutable_references_err.32bit.stderr @@ -5,13 +5,13 @@ LL | const MUH: Meh = Meh { | ^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:27:1 + --> $DIR/mutable_references_err.rs:28:1 | LL | const SNEAKY: &dyn Sync = &Synced { x: UnsafeCell::new(42) }; | ^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/mutable_references_err.rs:32:1 + --> $DIR/mutable_references_err.rs:33:1 | LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; | ^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered mutable reference in a `const` or `static` @@ -22,13 +22,13 @@ LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; } error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:35:1 + --> $DIR/mutable_references_err.rs:36:1 | LL | const BLUNT: &mut i32 = &mut 42; | ^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/mutable_references_err.rs:40:1 + --> $DIR/mutable_references_err.rs:41:1 | LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const _ as *mut _) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered mutable reference or box pointing to read-only memory @@ -39,7 +39,7 @@ LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const } error[E0080]: it is undefined behavior to use this value - --> $DIR/mutable_references_err.rs:47:1 + --> $DIR/mutable_references_err.rs:48:1 | LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered reference to mutable memory in `const` @@ -50,49 +50,49 @@ LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE }; } note: erroneous constant encountered - --> $DIR/mutable_references_err.rs:49:34 + --> $DIR/mutable_references_err.rs:50:34 | LL | const READS_FROM_MUTABLE: i32 = *POINTS_TO_MUTABLE1; | ^^^^^^^^^^^^^^^^^^ error[E0080]: evaluation of constant value failed - --> $DIR/mutable_references_err.rs:51:43 + --> $DIR/mutable_references_err.rs:52:43 | LL | const POINTS_TO_MUTABLE2: &i32 = unsafe { &*MUTABLE_REF }; | ^^^^^^^^^^^^^ constant accesses mutable global memory error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:55:1 + --> $DIR/mutable_references_err.rs:56:1 | LL | const POINTS_TO_MUTABLE_INNER: *const i32 = &mut 42 as *mut _ as *const _; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:57:1 + --> $DIR/mutable_references_err.rs:58:1 | LL | const POINTS_TO_MUTABLE_INNER2: *const i32 = &mut 42 as *const _; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:59:1 + --> $DIR/mutable_references_err.rs:60:1 | LL | const INTERIOR_MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:69:1 + --> $DIR/mutable_references_err.rs:72:1 | LL | const RAW_SYNC: SyncPtr<AtomicI32> = SyncPtr { x: &AtomicI32::new(42) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:71:1 + --> $DIR/mutable_references_err.rs:74:1 | -LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x : &mut 42 as *mut _ as *const _ }; +LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x: &mut 42 as *mut _ as *const _ }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:73:1 + --> $DIR/mutable_references_err.rs:76:1 | LL | const RAW_MUT_COERCE: SyncPtr<i32> = SyncPtr { x: &mut 0 }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -100,77 +100,77 @@ LL | const RAW_MUT_COERCE: SyncPtr<i32> = SyncPtr { x: &mut 0 }; warning: skipping const checks | help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:18:8 + --> $DIR/mutable_references_err.rs:19:8 | LL | x: &UnsafeCell::new(42), | ^^^^^^^^^^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:27:27 + --> $DIR/mutable_references_err.rs:28:27 | LL | const SNEAKY: &dyn Sync = &Synced { x: UnsafeCell::new(42) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: skipping check for `const_refs_to_static` feature - --> $DIR/mutable_references_err.rs:32:40 + --> $DIR/mutable_references_err.rs:33:40 | LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; | ^^^ help: skipping check for `const_mut_refs` feature - --> $DIR/mutable_references_err.rs:32:35 + --> $DIR/mutable_references_err.rs:33:35 | LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; | ^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:35:25 + --> $DIR/mutable_references_err.rs:36:25 | LL | const BLUNT: &mut i32 = &mut 42; | ^^^^^^^ help: skipping check for `const_mut_refs` feature - --> $DIR/mutable_references_err.rs:40:49 + --> $DIR/mutable_references_err.rs:41:49 | LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const _ as *mut _) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: skipping check for `const_mut_refs` feature - --> $DIR/mutable_references_err.rs:40:49 + --> $DIR/mutable_references_err.rs:41:49 | LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const _ as *mut _) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: skipping check for `const_refs_to_static` feature - --> $DIR/mutable_references_err.rs:47:44 + --> $DIR/mutable_references_err.rs:48:44 | LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE }; | ^^^^^^^ help: skipping check for `const_refs_to_static` feature - --> $DIR/mutable_references_err.rs:51:45 + --> $DIR/mutable_references_err.rs:52:45 | LL | const POINTS_TO_MUTABLE2: &i32 = unsafe { &*MUTABLE_REF }; | ^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:55:45 + --> $DIR/mutable_references_err.rs:56:45 | LL | const POINTS_TO_MUTABLE_INNER: *const i32 = &mut 42 as *mut _ as *const _; | ^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:57:46 + --> $DIR/mutable_references_err.rs:58:46 | LL | const POINTS_TO_MUTABLE_INNER2: *const i32 = &mut 42 as *const _; | ^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:59:47 + --> $DIR/mutable_references_err.rs:60:47 | LL | const INTERIOR_MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _; | ^^^^^^^^^^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:69:51 + --> $DIR/mutable_references_err.rs:72:51 | LL | const RAW_SYNC: SyncPtr<AtomicI32> = SyncPtr { x: &AtomicI32::new(42) }; | ^^^^^^^^^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:71:50 + --> $DIR/mutable_references_err.rs:74:49 | -LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x : &mut 42 as *mut _ as *const _ }; - | ^^^^^^^ +LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x: &mut 42 as *mut _ as *const _ }; + | ^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:73:51 + --> $DIR/mutable_references_err.rs:76:51 | LL | const RAW_MUT_COERCE: SyncPtr<i32> = SyncPtr { x: &mut 0 }; | ^^^^^^ diff --git a/tests/ui/consts/miri_unleashed/mutable_references_err.64bit.stderr b/tests/ui/consts/miri_unleashed/mutable_references_err.64bit.stderr index 844483d88e9..2b5e8643f3b 100644 --- a/tests/ui/consts/miri_unleashed/mutable_references_err.64bit.stderr +++ b/tests/ui/consts/miri_unleashed/mutable_references_err.64bit.stderr @@ -5,13 +5,13 @@ LL | const MUH: Meh = Meh { | ^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:27:1 + --> $DIR/mutable_references_err.rs:28:1 | LL | const SNEAKY: &dyn Sync = &Synced { x: UnsafeCell::new(42) }; | ^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/mutable_references_err.rs:32:1 + --> $DIR/mutable_references_err.rs:33:1 | LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; | ^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered mutable reference in a `const` or `static` @@ -22,13 +22,13 @@ LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; } error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:35:1 + --> $DIR/mutable_references_err.rs:36:1 | LL | const BLUNT: &mut i32 = &mut 42; | ^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/mutable_references_err.rs:40:1 + --> $DIR/mutable_references_err.rs:41:1 | LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const _ as *mut _) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered mutable reference or box pointing to read-only memory @@ -39,7 +39,7 @@ LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const } error[E0080]: it is undefined behavior to use this value - --> $DIR/mutable_references_err.rs:47:1 + --> $DIR/mutable_references_err.rs:48:1 | LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered reference to mutable memory in `const` @@ -50,49 +50,49 @@ LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE }; } note: erroneous constant encountered - --> $DIR/mutable_references_err.rs:49:34 + --> $DIR/mutable_references_err.rs:50:34 | LL | const READS_FROM_MUTABLE: i32 = *POINTS_TO_MUTABLE1; | ^^^^^^^^^^^^^^^^^^ error[E0080]: evaluation of constant value failed - --> $DIR/mutable_references_err.rs:51:43 + --> $DIR/mutable_references_err.rs:52:43 | LL | const POINTS_TO_MUTABLE2: &i32 = unsafe { &*MUTABLE_REF }; | ^^^^^^^^^^^^^ constant accesses mutable global memory error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:55:1 + --> $DIR/mutable_references_err.rs:56:1 | LL | const POINTS_TO_MUTABLE_INNER: *const i32 = &mut 42 as *mut _ as *const _; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:57:1 + --> $DIR/mutable_references_err.rs:58:1 | LL | const POINTS_TO_MUTABLE_INNER2: *const i32 = &mut 42 as *const _; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:59:1 + --> $DIR/mutable_references_err.rs:60:1 | LL | const INTERIOR_MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:69:1 + --> $DIR/mutable_references_err.rs:72:1 | LL | const RAW_SYNC: SyncPtr<AtomicI32> = SyncPtr { x: &AtomicI32::new(42) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:71:1 + --> $DIR/mutable_references_err.rs:74:1 | -LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x : &mut 42 as *mut _ as *const _ }; +LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x: &mut 42 as *mut _ as *const _ }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: encountered mutable pointer in final value of constant - --> $DIR/mutable_references_err.rs:73:1 + --> $DIR/mutable_references_err.rs:76:1 | LL | const RAW_MUT_COERCE: SyncPtr<i32> = SyncPtr { x: &mut 0 }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -100,77 +100,77 @@ LL | const RAW_MUT_COERCE: SyncPtr<i32> = SyncPtr { x: &mut 0 }; warning: skipping const checks | help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:18:8 + --> $DIR/mutable_references_err.rs:19:8 | LL | x: &UnsafeCell::new(42), | ^^^^^^^^^^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:27:27 + --> $DIR/mutable_references_err.rs:28:27 | LL | const SNEAKY: &dyn Sync = &Synced { x: UnsafeCell::new(42) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: skipping check for `const_refs_to_static` feature - --> $DIR/mutable_references_err.rs:32:40 + --> $DIR/mutable_references_err.rs:33:40 | LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; | ^^^ help: skipping check for `const_mut_refs` feature - --> $DIR/mutable_references_err.rs:32:35 + --> $DIR/mutable_references_err.rs:33:35 | LL | const SUBTLE: &mut i32 = unsafe { &mut FOO }; | ^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:35:25 + --> $DIR/mutable_references_err.rs:36:25 | LL | const BLUNT: &mut i32 = &mut 42; | ^^^^^^^ help: skipping check for `const_mut_refs` feature - --> $DIR/mutable_references_err.rs:40:49 + --> $DIR/mutable_references_err.rs:41:49 | LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const _ as *mut _) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: skipping check for `const_mut_refs` feature - --> $DIR/mutable_references_err.rs:40:49 + --> $DIR/mutable_references_err.rs:41:49 | LL | static mut MUT_TO_READONLY: &mut i32 = unsafe { &mut *(&READONLY as *const _ as *mut _) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: skipping check for `const_refs_to_static` feature - --> $DIR/mutable_references_err.rs:47:44 + --> $DIR/mutable_references_err.rs:48:44 | LL | const POINTS_TO_MUTABLE1: &i32 = unsafe { &MUTABLE }; | ^^^^^^^ help: skipping check for `const_refs_to_static` feature - --> $DIR/mutable_references_err.rs:51:45 + --> $DIR/mutable_references_err.rs:52:45 | LL | const POINTS_TO_MUTABLE2: &i32 = unsafe { &*MUTABLE_REF }; | ^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:55:45 + --> $DIR/mutable_references_err.rs:56:45 | LL | const POINTS_TO_MUTABLE_INNER: *const i32 = &mut 42 as *mut _ as *const _; | ^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:57:46 + --> $DIR/mutable_references_err.rs:58:46 | LL | const POINTS_TO_MUTABLE_INNER2: *const i32 = &mut 42 as *const _; | ^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:59:47 + --> $DIR/mutable_references_err.rs:60:47 | LL | const INTERIOR_MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _; | ^^^^^^^^^^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:69:51 + --> $DIR/mutable_references_err.rs:72:51 | LL | const RAW_SYNC: SyncPtr<AtomicI32> = SyncPtr { x: &AtomicI32::new(42) }; | ^^^^^^^^^^^^^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:71:50 + --> $DIR/mutable_references_err.rs:74:49 | -LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x : &mut 42 as *mut _ as *const _ }; - | ^^^^^^^ +LL | const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x: &mut 42 as *mut _ as *const _ }; + | ^^^^^^^ help: skipping check that does not even have a feature gate - --> $DIR/mutable_references_err.rs:73:51 + --> $DIR/mutable_references_err.rs:76:51 | LL | const RAW_MUT_COERCE: SyncPtr<i32> = SyncPtr { x: &mut 0 }; | ^^^^^^ diff --git a/tests/ui/consts/miri_unleashed/mutable_references_err.rs b/tests/ui/consts/miri_unleashed/mutable_references_err.rs index 2075adad6f7..feb2c825380 100644 --- a/tests/ui/consts/miri_unleashed/mutable_references_err.rs +++ b/tests/ui/consts/miri_unleashed/mutable_references_err.rs @@ -1,9 +1,9 @@ //@ stderr-per-bitwidth //@ compile-flags: -Zunleash-the-miri-inside-of-you -#![allow(invalid_reference_casting, static_mut_ref)] +#![allow(invalid_reference_casting, static_mut_refs)] -use std::sync::atomic::*; use std::cell::UnsafeCell; +use std::sync::atomic::*; // this test ensures that our mutability story is sound @@ -14,7 +14,8 @@ unsafe impl Sync for Meh {} // the following will never be ok! no interior mut behind consts, because // all allocs interned here will be marked immutable. -const MUH: Meh = Meh { //~ ERROR: mutable pointer in final value +const MUH: Meh = Meh { + //~^ ERROR encountered mutable pointer in final value of constant x: &UnsafeCell::new(42), }; @@ -59,7 +60,9 @@ const POINTS_TO_MUTABLE_INNER2: *const i32 = &mut 42 as *const _; const INTERIOR_MUTABLE_BEHIND_RAW: *mut i32 = &UnsafeCell::new(42) as *const _ as *mut _; //~^ ERROR: mutable pointer in final value -struct SyncPtr<T> { x : *const T } +struct SyncPtr<T> { + x: *const T, +} unsafe impl<T> Sync for SyncPtr<T> {} // These pass the lifetime checks because of the "tail expression" / "outer scope" rule. @@ -68,7 +71,7 @@ unsafe impl<T> Sync for SyncPtr<T> {} // (Also see `static-no-inner-mut` for similar tests on `static`.) const RAW_SYNC: SyncPtr<AtomicI32> = SyncPtr { x: &AtomicI32::new(42) }; //~^ ERROR mutable pointer in final value -const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x : &mut 42 as *mut _ as *const _ }; +const RAW_MUT_CAST: SyncPtr<i32> = SyncPtr { x: &mut 42 as *mut _ as *const _ }; //~^ ERROR mutable pointer in final value const RAW_MUT_COERCE: SyncPtr<i32> = SyncPtr { x: &mut 0 }; //~^ ERROR mutable pointer in final value diff --git a/tests/ui/consts/static-promoted-to-mutable-static.rs b/tests/ui/consts/static-promoted-to-mutable-static.rs index 1cf72781e45..9eb9e1b8dfb 100644 --- a/tests/ui/consts/static-promoted-to-mutable-static.rs +++ b/tests/ui/consts/static-promoted-to-mutable-static.rs @@ -1,8 +1,9 @@ //@ check-pass -#![allow(non_camel_case_types, non_upper_case_globals, static_mut_ref)] + +#![allow(non_camel_case_types, non_upper_case_globals, static_mut_refs)] pub struct wl_interface { - pub version: i32 + pub version: i32, } pub struct Interface { @@ -10,20 +11,14 @@ pub struct Interface { pub c_ptr: Option<&'static wl_interface>, } -pub static mut wl_callback_interface: wl_interface = wl_interface { - version: 0, -}; +pub static mut wl_callback_interface: wl_interface = wl_interface { version: 0 }; -pub static WL_CALLBACK_INTERFACE: Interface = Interface { - other_interfaces: &[], - c_ptr: Some(unsafe { &wl_callback_interface }), -}; +pub static WL_CALLBACK_INTERFACE: Interface = + Interface { other_interfaces: &[], c_ptr: Some(unsafe { &wl_callback_interface }) }; // This static contains a promoted that points to a static that points to a mutable static. -pub static WL_SURFACE_INTERFACE: Interface = Interface { - other_interfaces: &[&WL_CALLBACK_INTERFACE], - c_ptr: None, -}; +pub static WL_SURFACE_INTERFACE: Interface = + Interface { other_interfaces: &[&WL_CALLBACK_INTERFACE], c_ptr: None }; // And another variant of the same thing, this time with interior mutability. use std::sync::OnceLock; diff --git a/tests/ui/consts/static_mut_containing_mut_ref.rs b/tests/ui/consts/static_mut_containing_mut_ref.rs index 710328d6aa7..874a047d807 100644 --- a/tests/ui/consts/static_mut_containing_mut_ref.rs +++ b/tests/ui/consts/static_mut_containing_mut_ref.rs @@ -1,5 +1,5 @@ //@ build-pass (FIXME(62277): could be check-pass?) -#![allow(static_mut_ref)] +#![allow(static_mut_refs)] static mut STDERR_BUFFER_SPACE: [u8; 42] = [0u8; 42]; diff --git a/tests/ui/consts/static_mut_containing_mut_ref2.rs b/tests/ui/consts/static_mut_containing_mut_ref2.rs index b5110623606..547f6449f13 100644 --- a/tests/ui/consts/static_mut_containing_mut_ref2.rs +++ b/tests/ui/consts/static_mut_containing_mut_ref2.rs @@ -1,5 +1,5 @@ //@ revisions: stock mut_refs -#![allow(static_mut_ref)] +#![allow(static_mut_refs)] #![cfg_attr(mut_refs, feature(const_mut_refs))] static mut STDERR_BUFFER_SPACE: u8 = 0; diff --git a/tests/ui/drop/issue-23338-ensure-param-drop-order.rs b/tests/ui/drop/issue-23338-ensure-param-drop-order.rs index f283b33f645..1fa68a2e738 100644 --- a/tests/ui/drop/issue-23338-ensure-param-drop-order.rs +++ b/tests/ui/drop/issue-23338-ensure-param-drop-order.rs @@ -91,7 +91,7 @@ pub mod d { pub fn max_width() -> u32 { unsafe { (mem::size_of_val(&trails) * 8) as u32 - //~^ WARN shared reference of mutable static is discouraged [static_mut_ref] + //~^ WARN shared reference to mutable static is discouraged [static_mut_refs] } } diff --git a/tests/ui/drop/issue-23338-ensure-param-drop-order.stderr b/tests/ui/drop/issue-23338-ensure-param-drop-order.stderr index fd36ccbcbee..de1194e74b4 100644 --- a/tests/ui/drop/issue-23338-ensure-param-drop-order.stderr +++ b/tests/ui/drop/issue-23338-ensure-param-drop-order.stderr @@ -1,14 +1,14 @@ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/issue-23338-ensure-param-drop-order.rs:93:31 | LL | (mem::size_of_val(&trails) * 8) as u32 - | ^^^^^^^ shared reference of mutable static + | ^^^^^^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | (mem::size_of_val(addr_of!(trails)) * 8) as u32 | ~~~~~~~~~~~~~~~~ diff --git a/tests/ui/error-codes/E0017.rs b/tests/ui/error-codes/E0017.rs index c128c2779e2..144340b3512 100644 --- a/tests/ui/error-codes/E0017.rs +++ b/tests/ui/error-codes/E0017.rs @@ -13,6 +13,6 @@ static CONST_REF: &'static mut i32 = &mut C; //~ ERROR mutable references are no //~| WARN taking a mutable static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M }; -//~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] +//~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] fn main() {} diff --git a/tests/ui/error-codes/E0017.stderr b/tests/ui/error-codes/E0017.stderr index eb626a7fe3a..982ce52764e 100644 --- a/tests/ui/error-codes/E0017.stderr +++ b/tests/ui/error-codes/E0017.stderr @@ -1,14 +1,14 @@ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/E0017.rs:15:52 | LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { &mut M }; - | ^^^^^^ mutable reference of mutable static + | ^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of_mut!` instead to create a raw pointer | LL | static STATIC_MUT_REF: &'static mut i32 = unsafe { addr_of_mut!(M) }; | ~~~~~~~~~~~~~~~ diff --git a/tests/ui/issues/issue-23611-enum-swap-in-drop.rs b/tests/ui/issues/issue-23611-enum-swap-in-drop.rs index 980a2c01f23..1afaff0f735 100644 --- a/tests/ui/issues/issue-23611-enum-swap-in-drop.rs +++ b/tests/ui/issues/issue-23611-enum-swap-in-drop.rs @@ -187,7 +187,7 @@ pub mod d { pub fn max_width() -> u32 { unsafe { (mem::size_of_val(&trails) * 8) as u32 - //~^ WARN shared reference of mutable static is discouraged [static_mut_ref] + //~^ WARN shared reference to mutable static is discouraged [static_mut_refs] } } diff --git a/tests/ui/issues/issue-23611-enum-swap-in-drop.stderr b/tests/ui/issues/issue-23611-enum-swap-in-drop.stderr index 14a986a3332..bdf46abea8a 100644 --- a/tests/ui/issues/issue-23611-enum-swap-in-drop.stderr +++ b/tests/ui/issues/issue-23611-enum-swap-in-drop.stderr @@ -1,14 +1,14 @@ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/issue-23611-enum-swap-in-drop.rs:189:31 | LL | (mem::size_of_val(&trails) * 8) as u32 - | ^^^^^^^ shared reference of mutable static + | ^^^^^^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | (mem::size_of_val(addr_of!(trails)) * 8) as u32 | ~~~~~~~~~~~~~~~~ diff --git a/tests/ui/issues/issue-54410.rs b/tests/ui/issues/issue-54410.rs index 51eea3ad9ac..208be6f221c 100644 --- a/tests/ui/issues/issue-54410.rs +++ b/tests/ui/issues/issue-54410.rs @@ -5,5 +5,5 @@ extern "C" { fn main() { println!("{:p}", unsafe { &symbol }); - //~^ WARN: shared reference of mutable static is discouraged + //~^ WARN creating a shared reference to mutable static is discouraged [static_mut_refs] } diff --git a/tests/ui/issues/issue-54410.stderr b/tests/ui/issues/issue-54410.stderr index 941c1be3eab..7cc67ab72c3 100644 --- a/tests/ui/issues/issue-54410.stderr +++ b/tests/ui/issues/issue-54410.stderr @@ -6,17 +6,17 @@ LL | pub static mut symbol: [i8]; | = help: the trait `Sized` is not implemented for `[i8]` -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/issue-54410.rs:7:31 | LL | println!("{:p}", unsafe { &symbol }); - | ^^^^^^^ shared reference of mutable static + | ^^^^^^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | println!("{:p}", unsafe { addr_of!(symbol) }); | ~~~~~~~~~~~~~~~~ diff --git a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.rs b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.rs index fd49b232265..be882085c5c 100644 --- a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.rs +++ b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.rs @@ -15,7 +15,7 @@ struct S1 { impl S1 { fn new(_x: u64) -> S1 { S1 { a: unsafe { &mut X1 } } - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } } diff --git a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr index 17217cd5859..82065cc06ea 100644 --- a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr +++ b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr @@ -1,14 +1,14 @@ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/borrowck-thread-local-static-mut-borrow-outlives-fn.rs:17:26 | LL | S1 { a: unsafe { &mut X1 } } - | ^^^^^^^ mutable reference of mutable static + | ^^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of_mut!` instead to create a raw pointer | LL | S1 { a: unsafe { addr_of_mut!(X1) } } | ~~~~~~~~~~~~~~~~ diff --git a/tests/ui/static/reference-of-mut-static-safe.e2021.stderr b/tests/ui/static/reference-of-mut-static-safe.e2021.stderr deleted file mode 100644 index 16f47ace3a9..00000000000 --- a/tests/ui/static/reference-of-mut-static-safe.e2021.stderr +++ /dev/null @@ -1,26 +0,0 @@ -warning: shared reference of mutable static is discouraged - --> $DIR/reference-of-mut-static-safe.rs:9:14 - | -LL | let _x = &X; - | ^^ shared reference of mutable static - | - = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer - | -LL | let _x = addr_of!(X); - | ~~~~~~~~~~~ - -error[E0133]: use of mutable static is unsafe and requires unsafe function or block - --> $DIR/reference-of-mut-static-safe.rs:9:15 - | -LL | let _x = &X; - | ^ use of mutable static - | - = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior - -error: aborting due to 1 previous error; 1 warning emitted - -For more information about this error, try `rustc --explain E0133`. diff --git a/tests/ui/static/reference-of-mut-static-safe.e2024.stderr b/tests/ui/static/reference-of-mut-static-safe.e2024.stderr deleted file mode 100644 index 53f81179de5..00000000000 --- a/tests/ui/static/reference-of-mut-static-safe.e2024.stderr +++ /dev/null @@ -1,15 +0,0 @@ -error[E0796]: reference of mutable static is disallowed - --> $DIR/reference-of-mut-static-safe.rs:9:14 - | -LL | let _x = &X; - | ^^ reference of mutable static - | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer - | -LL | let _x = addr_of!(X); - | ~~~~~~~~~~~ - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0796`. diff --git a/tests/ui/static/reference-of-mut-static-unsafe-fn.rs b/tests/ui/static/reference-of-mut-static-unsafe-fn.rs index 8f3b3eb7745..5652703a271 100644 --- a/tests/ui/static/reference-of-mut-static-unsafe-fn.rs +++ b/tests/ui/static/reference-of-mut-static-unsafe-fn.rs @@ -7,17 +7,20 @@ unsafe fn _foo() { static mut Y: i32 = 1; let _y = &X; - //~^ ERROR reference of mutable static is disallowed + //~^ ERROR creating a shared reference to a mutable static [E0796] let ref _a = X; - //~^ ERROR reference of mutable static is disallowed + //~^ ERROR creating a shared reference to a mutable static [E0796] - let (_b, _c) = (&X, &Y); - //~^ ERROR reference of mutable static is disallowed - //~^^ ERROR reference of mutable static is disallowed + let ref mut _a = X; + //~^ ERROR creating a mutable reference to a mutable static [E0796] + + let (_b, _c) = (&X, &mut Y); + //~^ ERROR creating a shared reference to a mutable static [E0796] + //~^^ ERROR creating a mutable reference to a mutable static [E0796] foo(&X); - //~^ ERROR reference of mutable static is disallowed + //~^ ERROR creating a shared reference to a mutable static [E0796] } fn foo<'a>(_x: &'a i32) {} diff --git a/tests/ui/static/reference-of-mut-static-unsafe-fn.stderr b/tests/ui/static/reference-of-mut-static-unsafe-fn.stderr index 5c6fdedfa96..5675d313e07 100644 --- a/tests/ui/static/reference-of-mut-static-unsafe-fn.stderr +++ b/tests/ui/static/reference-of-mut-static-unsafe-fn.stderr @@ -1,63 +1,75 @@ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a shared reference to a mutable static --> $DIR/reference-of-mut-static-unsafe-fn.rs:9:14 | LL | let _y = &X; - | ^^ reference of mutable static + | ^^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let _y = addr_of!(X); | ~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a shared reference to a mutable static --> $DIR/reference-of-mut-static-unsafe-fn.rs:12:18 | LL | let ref _a = X; - | ^ reference of mutable static + | ^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let ref _a = addr_of!(X); | ~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed - --> $DIR/reference-of-mut-static-unsafe-fn.rs:15:21 +error[E0796]: creating a mutable reference to a mutable static + --> $DIR/reference-of-mut-static-unsafe-fn.rs:15:22 | -LL | let (_b, _c) = (&X, &Y); - | ^^ reference of mutable static +LL | let ref mut _a = X; + | ^ mutable reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | -LL | let (_b, _c) = (addr_of!(X), &Y); +LL | let ref mut _a = addr_of_mut!(X); + | ~~~~~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-of-mut-static-unsafe-fn.rs:18:21 + | +LL | let (_b, _c) = (&X, &mut Y); + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let (_b, _c) = (addr_of!(X), &mut Y); | ~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed - --> $DIR/reference-of-mut-static-unsafe-fn.rs:15:25 +error[E0796]: creating a mutable reference to a mutable static + --> $DIR/reference-of-mut-static-unsafe-fn.rs:18:25 | -LL | let (_b, _c) = (&X, &Y); - | ^^ reference of mutable static +LL | let (_b, _c) = (&X, &mut Y); + | ^^^^^^ mutable reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | -LL | let (_b, _c) = (&X, addr_of!(Y)); - | ~~~~~~~~~~~ +LL | let (_b, _c) = (&X, addr_of_mut!(Y)); + | ~~~~~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed - --> $DIR/reference-of-mut-static-unsafe-fn.rs:19:9 +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-of-mut-static-unsafe-fn.rs:22:9 | LL | foo(&X); - | ^^ reference of mutable static + | ^^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | foo(addr_of!(X)); | ~~~~~~~~~~~ -error: aborting due to 5 previous errors +error: aborting due to 6 previous errors For more information about this error, try `rustc --explain E0796`. diff --git a/tests/ui/static/reference-of-mut-static.e2021.stderr b/tests/ui/static/reference-of-mut-static.e2021.stderr index 77a6b3d304b..f7ad51b6157 100644 --- a/tests/ui/static/reference-of-mut-static.e2021.stderr +++ b/tests/ui/static/reference-of-mut-static.e2021.stderr @@ -1,88 +1,88 @@ -error: shared reference of mutable static is discouraged +error: creating a shared reference to mutable static is discouraged --> $DIR/reference-of-mut-static.rs:16:18 | LL | let _y = &X; - | ^^ shared reference of mutable static + | ^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior note: the lint level is defined here --> $DIR/reference-of-mut-static.rs:6:9 | -LL | #![deny(static_mut_ref)] - | ^^^^^^^^^^^^^^ -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer +LL | #![deny(static_mut_refs)] + | ^^^^^^^^^^^^^^^ +help: use `addr_of!` instead to create a raw pointer | LL | let _y = addr_of!(X); | ~~~~~~~~~~~ -error: mutable reference of mutable static is discouraged +error: creating a mutable reference to mutable static is discouraged --> $DIR/reference-of-mut-static.rs:20:18 | LL | let _y = &mut X; - | ^^^^^^ mutable reference of mutable static + | ^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | LL | let _y = addr_of_mut!(X); | ~~~~~~~~~~~~~~~ -error: shared reference of mutable static is discouraged +error: creating a shared reference to mutable static is discouraged --> $DIR/reference-of-mut-static.rs:28:22 | LL | let ref _a = X; - | ^ shared reference of mutable static + | ^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let ref _a = addr_of!(X); | ~~~~~~~~~~~ -error: shared reference of mutable static is discouraged +error: creating a shared reference to mutable static is discouraged --> $DIR/reference-of-mut-static.rs:32:25 | LL | let (_b, _c) = (&X, &Y); - | ^^ shared reference of mutable static + | ^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let (_b, _c) = (addr_of!(X), &Y); | ~~~~~~~~~~~ -error: shared reference of mutable static is discouraged +error: creating a shared reference to mutable static is discouraged --> $DIR/reference-of-mut-static.rs:32:29 | LL | let (_b, _c) = (&X, &Y); - | ^^ shared reference of mutable static + | ^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let (_b, _c) = (&X, addr_of!(Y)); | ~~~~~~~~~~~ -error: shared reference of mutable static is discouraged +error: creating a shared reference to mutable static is discouraged --> $DIR/reference-of-mut-static.rs:38:13 | LL | foo(&X); - | ^^ shared reference of mutable static + | ^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | foo(addr_of!(X)); | ~~~~~~~~~~~ diff --git a/tests/ui/static/reference-of-mut-static.e2024.stderr b/tests/ui/static/reference-of-mut-static.e2024.stderr index f445ec65a5d..6205c10ac41 100644 --- a/tests/ui/static/reference-of-mut-static.e2024.stderr +++ b/tests/ui/static/reference-of-mut-static.e2024.stderr @@ -1,71 +1,71 @@ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a shared reference to a mutable static --> $DIR/reference-of-mut-static.rs:16:18 | LL | let _y = &X; - | ^^ reference of mutable static + | ^^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let _y = addr_of!(X); | ~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a mutable reference to a mutable static --> $DIR/reference-of-mut-static.rs:20:18 | LL | let _y = &mut X; - | ^^^^^^ reference of mutable static + | ^^^^^^ mutable reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | LL | let _y = addr_of_mut!(X); | ~~~~~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a shared reference to a mutable static --> $DIR/reference-of-mut-static.rs:28:22 | LL | let ref _a = X; - | ^ reference of mutable static + | ^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let ref _a = addr_of!(X); | ~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a shared reference to a mutable static --> $DIR/reference-of-mut-static.rs:32:25 | LL | let (_b, _c) = (&X, &Y); - | ^^ reference of mutable static + | ^^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let (_b, _c) = (addr_of!(X), &Y); | ~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a shared reference to a mutable static --> $DIR/reference-of-mut-static.rs:32:29 | LL | let (_b, _c) = (&X, &Y); - | ^^ reference of mutable static + | ^^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let (_b, _c) = (&X, addr_of!(Y)); | ~~~~~~~~~~~ -error[E0796]: reference of mutable static is disallowed +error[E0796]: creating a shared reference to a mutable static --> $DIR/reference-of-mut-static.rs:38:13 | LL | foo(&X); - | ^^ reference of mutable static + | ^^ shared reference to mutable static | - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | foo(addr_of!(X)); | ~~~~~~~~~~~ diff --git a/tests/ui/static/reference-of-mut-static.rs b/tests/ui/static/reference-of-mut-static.rs index 166303f0257..af2cab7dd87 100644 --- a/tests/ui/static/reference-of-mut-static.rs +++ b/tests/ui/static/reference-of-mut-static.rs @@ -3,7 +3,7 @@ //@ [e2021] edition:2021 //@ [e2024] compile-flags: --edition 2024 -Z unstable-options -#![deny(static_mut_ref)] +#![deny(static_mut_refs)] use std::ptr::{addr_of, addr_of_mut}; @@ -14,30 +14,30 @@ fn main() { unsafe { let _y = &X; - //[e2024]~^ ERROR reference of mutable static is disallowed - //[e2021]~^^ ERROR shared reference of mutable static is discouraged [static_mut_ref] + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] let _y = &mut X; - //[e2024]~^ ERROR reference of mutable static is disallowed - //[e2021]~^^ ERROR mutable reference of mutable static is discouraged [static_mut_ref] + //[e2024]~^ ERROR creating a mutable reference to a mutable static [E0796] + //[e2021]~^^ ERROR mutable reference to mutable static is discouraged [static_mut_refs] let _z = addr_of_mut!(X); let _p = addr_of!(X); let ref _a = X; - //[e2024]~^ ERROR reference of mutable static is disallowed - //[e2021]~^^ ERROR shared reference of mutable static is discouraged [static_mut_ref] + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] let (_b, _c) = (&X, &Y); - //[e2024]~^ ERROR reference of mutable static is disallowed - //[e2021]~^^ ERROR shared reference of mutable static is discouraged [static_mut_ref] - //[e2024]~^^^ ERROR reference of mutable static is disallowed - //[e2021]~^^^^ ERROR shared reference of mutable static is discouraged [static_mut_ref] + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] + //[e2024]~^^^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] foo(&X); - //[e2024]~^ ERROR reference of mutable static is disallowed - //[e2021]~^^ ERROR shared reference of mutable static is discouraged [static_mut_ref] + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] static mut Z: &[i32; 3] = &[0, 1, 2]; diff --git a/tests/ui/static/reference-to-mut-static-safe.e2021.stderr b/tests/ui/static/reference-to-mut-static-safe.e2021.stderr new file mode 100644 index 00000000000..9ea34290e36 --- /dev/null +++ b/tests/ui/static/reference-to-mut-static-safe.e2021.stderr @@ -0,0 +1,26 @@ +warning: creating a shared reference to mutable static is discouraged + --> $DIR/reference-to-mut-static-safe.rs:9:14 + | +LL | let _x = &X; + | ^^ shared reference to mutable static + | + = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer + | +LL | let _x = addr_of!(X); + | ~~~~~~~~~~~ + +error[E0133]: use of mutable static is unsafe and requires unsafe function or block + --> $DIR/reference-to-mut-static-safe.rs:9:15 + | +LL | let _x = &X; + | ^ use of mutable static + | + = note: mutable statics can be mutated by multiple threads: aliasing violations or data races will cause undefined behavior + +error: aborting due to 1 previous error; 1 warning emitted + +For more information about this error, try `rustc --explain E0133`. diff --git a/tests/ui/static/reference-to-mut-static-safe.e2024.stderr b/tests/ui/static/reference-to-mut-static-safe.e2024.stderr new file mode 100644 index 00000000000..607c1bba135 --- /dev/null +++ b/tests/ui/static/reference-to-mut-static-safe.e2024.stderr @@ -0,0 +1,15 @@ +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static-safe.rs:9:14 + | +LL | let _x = &X; + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let _x = addr_of!(X); + | ~~~~~~~~~~~ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0796`. diff --git a/tests/ui/static/reference-of-mut-static-safe.rs b/tests/ui/static/reference-to-mut-static-safe.rs index d113d0ee48d..de4f4be8f76 100644 --- a/tests/ui/static/reference-of-mut-static-safe.rs +++ b/tests/ui/static/reference-to-mut-static-safe.rs @@ -7,7 +7,7 @@ fn main() { static mut X: i32 = 1; let _x = &X; - //[e2024]~^ reference of mutable static is disallowed [E0796] + //[e2024]~^ creating a shared reference to a mutable static [E0796] //[e2021]~^^ use of mutable static is unsafe and requires unsafe function or block [E0133] - //[e2021]~^^^ shared reference of mutable static is discouraged [static_mut_ref] + //[e2021]~^^^ shared reference to mutable static is discouraged [static_mut_refs] } diff --git a/tests/ui/static/reference-to-mut-static-unsafe-fn.rs b/tests/ui/static/reference-to-mut-static-unsafe-fn.rs new file mode 100644 index 00000000000..5652703a271 --- /dev/null +++ b/tests/ui/static/reference-to-mut-static-unsafe-fn.rs @@ -0,0 +1,26 @@ +//@ compile-flags: --edition 2024 -Z unstable-options + +fn main() {} + +unsafe fn _foo() { + static mut X: i32 = 1; + static mut Y: i32 = 1; + + let _y = &X; + //~^ ERROR creating a shared reference to a mutable static [E0796] + + let ref _a = X; + //~^ ERROR creating a shared reference to a mutable static [E0796] + + let ref mut _a = X; + //~^ ERROR creating a mutable reference to a mutable static [E0796] + + let (_b, _c) = (&X, &mut Y); + //~^ ERROR creating a shared reference to a mutable static [E0796] + //~^^ ERROR creating a mutable reference to a mutable static [E0796] + + foo(&X); + //~^ ERROR creating a shared reference to a mutable static [E0796] +} + +fn foo<'a>(_x: &'a i32) {} diff --git a/tests/ui/static/reference-to-mut-static-unsafe-fn.stderr b/tests/ui/static/reference-to-mut-static-unsafe-fn.stderr new file mode 100644 index 00000000000..77d2aa5d1ae --- /dev/null +++ b/tests/ui/static/reference-to-mut-static-unsafe-fn.stderr @@ -0,0 +1,75 @@ +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static-unsafe-fn.rs:9:14 + | +LL | let _y = &X; + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let _y = addr_of!(X); + | ~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static-unsafe-fn.rs:12:18 + | +LL | let ref _a = X; + | ^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let ref _a = addr_of!(X); + | ~~~~~~~~~~~ + +error[E0796]: creating a mutable reference to a mutable static + --> $DIR/reference-to-mut-static-unsafe-fn.rs:15:22 + | +LL | let ref mut _a = X; + | ^ mutable reference to mutable static + | + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer + | +LL | let ref mut _a = addr_of_mut!(X); + | ~~~~~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static-unsafe-fn.rs:18:21 + | +LL | let (_b, _c) = (&X, &mut Y); + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let (_b, _c) = (addr_of!(X), &mut Y); + | ~~~~~~~~~~~ + +error[E0796]: creating a mutable reference to a mutable static + --> $DIR/reference-to-mut-static-unsafe-fn.rs:18:25 + | +LL | let (_b, _c) = (&X, &mut Y); + | ^^^^^^ mutable reference to mutable static + | + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer + | +LL | let (_b, _c) = (&X, addr_of_mut!(Y)); + | ~~~~~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static-unsafe-fn.rs:22:9 + | +LL | foo(&X); + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | foo(addr_of!(X)); + | ~~~~~~~~~~~ + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0796`. diff --git a/tests/ui/static/reference-to-mut-static.e2021.stderr b/tests/ui/static/reference-to-mut-static.e2021.stderr new file mode 100644 index 00000000000..f477e5ac6c5 --- /dev/null +++ b/tests/ui/static/reference-to-mut-static.e2021.stderr @@ -0,0 +1,91 @@ +error: creating a shared reference to mutable static is discouraged + --> $DIR/reference-to-mut-static.rs:16:18 + | +LL | let _y = &X; + | ^^ shared reference to mutable static + | + = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +note: the lint level is defined here + --> $DIR/reference-to-mut-static.rs:6:9 + | +LL | #![deny(static_mut_refs)] + | ^^^^^^^^^^^^^^^ +help: use `addr_of!` instead to create a raw pointer + | +LL | let _y = addr_of!(X); + | ~~~~~~~~~~~ + +error: creating a mutable reference to mutable static is discouraged + --> $DIR/reference-to-mut-static.rs:20:18 + | +LL | let _y = &mut X; + | ^^^^^^ mutable reference to mutable static + | + = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer + | +LL | let _y = addr_of_mut!(X); + | ~~~~~~~~~~~~~~~ + +error: creating a shared reference to mutable static is discouraged + --> $DIR/reference-to-mut-static.rs:28:22 + | +LL | let ref _a = X; + | ^ shared reference to mutable static + | + = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let ref _a = addr_of!(X); + | ~~~~~~~~~~~ + +error: creating a shared reference to mutable static is discouraged + --> $DIR/reference-to-mut-static.rs:32:25 + | +LL | let (_b, _c) = (&X, &Y); + | ^^ shared reference to mutable static + | + = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let (_b, _c) = (addr_of!(X), &Y); + | ~~~~~~~~~~~ + +error: creating a shared reference to mutable static is discouraged + --> $DIR/reference-to-mut-static.rs:32:29 + | +LL | let (_b, _c) = (&X, &Y); + | ^^ shared reference to mutable static + | + = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let (_b, _c) = (&X, addr_of!(Y)); + | ~~~~~~~~~~~ + +error: creating a shared reference to mutable static is discouraged + --> $DIR/reference-to-mut-static.rs:38:13 + | +LL | foo(&X); + | ^^ shared reference to mutable static + | + = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | foo(addr_of!(X)); + | ~~~~~~~~~~~ + +error: aborting due to 6 previous errors + diff --git a/tests/ui/static/reference-to-mut-static.e2024.stderr b/tests/ui/static/reference-to-mut-static.e2024.stderr new file mode 100644 index 00000000000..b18e214e84f --- /dev/null +++ b/tests/ui/static/reference-to-mut-static.e2024.stderr @@ -0,0 +1,75 @@ +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static.rs:16:18 + | +LL | let _y = &X; + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let _y = addr_of!(X); + | ~~~~~~~~~~~ + +error[E0796]: creating a mutable reference to a mutable static + --> $DIR/reference-to-mut-static.rs:20:18 + | +LL | let _y = &mut X; + | ^^^^^^ mutable reference to mutable static + | + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer + | +LL | let _y = addr_of_mut!(X); + | ~~~~~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static.rs:28:22 + | +LL | let ref _a = X; + | ^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let ref _a = addr_of!(X); + | ~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static.rs:32:25 + | +LL | let (_b, _c) = (&X, &Y); + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let (_b, _c) = (addr_of!(X), &Y); + | ~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static.rs:32:29 + | +LL | let (_b, _c) = (&X, &Y); + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | let (_b, _c) = (&X, addr_of!(Y)); + | ~~~~~~~~~~~ + +error[E0796]: creating a shared reference to a mutable static + --> $DIR/reference-to-mut-static.rs:38:13 + | +LL | foo(&X); + | ^^ shared reference to mutable static + | + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer + | +LL | foo(addr_of!(X)); + | ~~~~~~~~~~~ + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0796`. diff --git a/tests/ui/static/reference-to-mut-static.rs b/tests/ui/static/reference-to-mut-static.rs new file mode 100644 index 00000000000..af2cab7dd87 --- /dev/null +++ b/tests/ui/static/reference-to-mut-static.rs @@ -0,0 +1,50 @@ +//@ revisions: e2021 e2024 + +//@ [e2021] edition:2021 +//@ [e2024] compile-flags: --edition 2024 -Z unstable-options + +#![deny(static_mut_refs)] + +use std::ptr::{addr_of, addr_of_mut}; + +fn main() { + static mut X: i32 = 1; + + static mut Y: i32 = 1; + + unsafe { + let _y = &X; + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] + + let _y = &mut X; + //[e2024]~^ ERROR creating a mutable reference to a mutable static [E0796] + //[e2021]~^^ ERROR mutable reference to mutable static is discouraged [static_mut_refs] + + let _z = addr_of_mut!(X); + + let _p = addr_of!(X); + + let ref _a = X; + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] + + let (_b, _c) = (&X, &Y); + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] + //[e2024]~^^^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] + + foo(&X); + //[e2024]~^ ERROR creating a shared reference to a mutable static [E0796] + //[e2021]~^^ ERROR shared reference to mutable static is discouraged [static_mut_refs] + + static mut Z: &[i32; 3] = &[0, 1, 2]; + + let _ = Z.len(); + let _ = Z[0]; + let _ = format!("{:?}", Z); + } +} + +fn foo<'a>(_x: &'a i32) {} diff --git a/tests/ui/static/safe-extern-statics-mut.rs b/tests/ui/static/safe-extern-statics-mut.rs index 8aa0b47a311..05a1bee8891 100644 --- a/tests/ui/static/safe-extern-statics-mut.rs +++ b/tests/ui/static/safe-extern-statics-mut.rs @@ -10,8 +10,8 @@ extern "C" { fn main() { let b = B; //~ ERROR use of mutable static is unsafe let rb = &B; //~ ERROR use of mutable static is unsafe - //~^ WARN shared reference of mutable static is discouraged [static_mut_ref] + //~^ WARN shared reference to mutable static is discouraged [static_mut_refs] let xb = XB; //~ ERROR use of mutable static is unsafe let xrb = &XB; //~ ERROR use of mutable static is unsafe - //~^ WARN shared reference of mutable static is discouraged [static_mut_ref] + //~^ WARN shared reference to mutable static is discouraged [static_mut_refs] } diff --git a/tests/ui/static/safe-extern-statics-mut.stderr b/tests/ui/static/safe-extern-statics-mut.stderr index eda353ce673..9a4b651405f 100644 --- a/tests/ui/static/safe-extern-statics-mut.stderr +++ b/tests/ui/static/safe-extern-statics-mut.stderr @@ -1,28 +1,28 @@ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/safe-extern-statics-mut.rs:12:14 | LL | let rb = &B; - | ^^ shared reference of mutable static + | ^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | let rb = addr_of!(B); | ~~~~~~~~~~~ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/safe-extern-statics-mut.rs:15:15 | LL | let xrb = &XB; - | ^^^ shared reference of mutable static + | ^^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior +help: use `addr_of!` instead to create a raw pointer | LL | let xrb = addr_of!(XB); | ~~~~~~~~~~~~ diff --git a/tests/ui/statics/issue-15261.rs b/tests/ui/statics/issue-15261.rs index 71eeb2a6d26..e168abce078 100644 --- a/tests/ui/statics/issue-15261.rs +++ b/tests/ui/statics/issue-15261.rs @@ -7,6 +7,6 @@ static mut n_mut: usize = 0; static n: &'static usize = unsafe { &n_mut }; -//~^ WARN shared reference of mutable static is discouraged [static_mut_ref] +//~^ WARN shared reference to mutable static is discouraged [static_mut_refs] fn main() {} diff --git a/tests/ui/statics/issue-15261.stderr b/tests/ui/statics/issue-15261.stderr index 72d88ce1b38..c31793f3d8f 100644 --- a/tests/ui/statics/issue-15261.stderr +++ b/tests/ui/statics/issue-15261.stderr @@ -1,14 +1,14 @@ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/issue-15261.rs:9:37 | LL | static n: &'static usize = unsafe { &n_mut }; - | ^^^^^^ shared reference of mutable static + | ^^^^^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | static n: &'static usize = unsafe { addr_of!(n_mut) }; | ~~~~~~~~~~~~~~~ diff --git a/tests/ui/statics/static-mut-xc.rs b/tests/ui/statics/static-mut-xc.rs index 75a4faed83d..a772d4151f7 100644 --- a/tests/ui/statics/static-mut-xc.rs +++ b/tests/ui/statics/static-mut-xc.rs @@ -26,9 +26,9 @@ unsafe fn run() { static_mut_xc::a = -3; assert_eq!(static_mut_xc::a, -3); static_bound(&static_mut_xc::a); - //~^ WARN shared reference of mutable static is discouraged [static_mut_ref] + //~^ WARN shared reference to mutable static is discouraged [static_mut_refs] static_bound_set(&mut static_mut_xc::a); - //~^ WARN mutable reference of mutable static is discouraged [static_mut_ref] + //~^ WARN mutable reference to mutable static is discouraged [static_mut_refs] } pub fn main() { diff --git a/tests/ui/statics/static-mut-xc.stderr b/tests/ui/statics/static-mut-xc.stderr index 37aa336bc50..d381328c071 100644 --- a/tests/ui/statics/static-mut-xc.stderr +++ b/tests/ui/statics/static-mut-xc.stderr @@ -1,28 +1,28 @@ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/static-mut-xc.rs:28:18 | LL | static_bound(&static_mut_xc::a); - | ^^^^^^^^^^^^^^^^^ shared reference of mutable static + | ^^^^^^^^^^^^^^^^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | static_bound(addr_of!(static_mut_xc::a)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~ -warning: mutable reference of mutable static is discouraged +warning: creating a mutable reference to mutable static is discouraged --> $DIR/static-mut-xc.rs:30:22 | LL | static_bound_set(&mut static_mut_xc::a); - | ^^^^^^^^^^^^^^^^^^^^^ mutable reference of mutable static + | ^^^^^^^^^^^^^^^^^^^^^ mutable reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior -help: mutable references are dangerous since if there's any other pointer or reference used for that static while the reference lives, that's UB; use `addr_of_mut!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this mutable reference has lifetime `'static`, but if the static gets accessed (read or written) by any other means, or any other reference is created, then any further use of this mutable reference is Undefined Behavior +help: use `addr_of_mut!` instead to create a raw pointer | LL | static_bound_set(addr_of_mut!(static_mut_xc::a)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/tests/ui/statics/static-recursive.rs b/tests/ui/statics/static-recursive.rs index f504e2a79f0..29b80818b7d 100644 --- a/tests/ui/statics/static-recursive.rs +++ b/tests/ui/statics/static-recursive.rs @@ -1,7 +1,7 @@ //@ run-pass static mut S: *const u8 = unsafe { &S as *const *const u8 as *const u8 }; -//~^ WARN shared reference of mutable static is discouraged [static_mut_ref] +//~^ WARN shared reference to mutable static is discouraged [static_mut_refs] struct StaticDoubleLinked { prev: &'static StaticDoubleLinked, diff --git a/tests/ui/statics/static-recursive.stderr b/tests/ui/statics/static-recursive.stderr index 15888e5c68d..cd285c6c2a4 100644 --- a/tests/ui/statics/static-recursive.stderr +++ b/tests/ui/statics/static-recursive.stderr @@ -1,14 +1,14 @@ -warning: shared reference of mutable static is discouraged +warning: creating a shared reference to mutable static is discouraged --> $DIR/static-recursive.rs:3:36 | LL | static mut S: *const u8 = unsafe { &S as *const *const u8 as *const u8 }; - | ^^ shared reference of mutable static + | ^^ shared reference to mutable static | = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447> - = note: reference of mutable static is a hard error from 2024 edition - = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior - = note: `#[warn(static_mut_ref)]` on by default -help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer + = note: this will be a hard error in the 2024 edition + = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior + = note: `#[warn(static_mut_refs)]` on by default +help: use `addr_of!` instead to create a raw pointer | LL | static mut S: *const u8 = unsafe { addr_of!(S) as *const *const u8 as *const u8 }; | ~~~~~~~~~~~ diff --git a/tests/ui/thread-local/thread-local-static.rs b/tests/ui/thread-local/thread-local-static.rs index a1b72323f71..05df0471b14 100644 --- a/tests/ui/thread-local/thread-local-static.rs +++ b/tests/ui/thread-local/thread-local-static.rs @@ -2,7 +2,7 @@ #![feature(thread_local)] #![feature(const_swap)] -#![allow(static_mut_ref)] +#![allow(static_mut_refs)] #[thread_local] static mut STATIC_VAR_2: [u32; 8] = [4; 8]; |