diff options
5 files changed, 23 insertions, 20 deletions
diff --git a/library/core/src/ops/function.rs b/library/core/src/ops/function.rs index 19918e0dcea..ae879078739 100644 --- a/library/core/src/ops/function.rs +++ b/library/core/src/ops/function.rs @@ -61,8 +61,9 @@ ), on( _Self = "unsafe fn", + note = "unsafe function cannot be called generically without an unsafe block", // SAFETY: tidy is not smart enough to tell that the below unsafe block is a string - note = "unsafe functions must be wrapped in closures: `|| unsafe {{ /* code */ }}`" + label = "call the function in a closure: `|| unsafe {{ /* code */ }}`" ), message = "expected a `{Fn}<{Args}>` closure, found `{Self}`", label = "expected an `Fn<{Args}>` closure, found `{Self}`" @@ -146,8 +147,9 @@ pub trait Fn<Args>: FnMut<Args> { ), on( _Self = "unsafe fn", + note = "unsafe function cannot be called generically without an unsafe block", // SAFETY: tidy is not smart enough to tell that the below unsafe block is a string - note = "unsafe functions must be wrapped in closures: `|| unsafe {{ /* code */ }}`" + label = "call the function in a closure: `|| unsafe {{ /* code */ }}`" ), message = "expected a `{FnMut}<{Args}>` closure, found `{Self}`", label = "expected an `FnMut<{Args}>` closure, found `{Self}`" @@ -223,8 +225,9 @@ pub trait FnMut<Args>: FnOnce<Args> { ), on( _Self = "unsafe fn", + note = "unsafe function cannot be called generically without an unsafe block", // SAFETY: tidy is not smart enough to tell that the below unsafe block is a string - note = "unsafe functions must be wrapped in closures: `|| unsafe {{ /* code */ }}`" + label = "call the function in a closure: `|| unsafe {{ /* code */ }}`" ), message = "expected a `{FnOnce}<{Args}>` closure, found `{Self}`", label = "expected an `FnOnce<{Args}>` closure, found `{Self}`" diff --git a/src/test/ui/closures/coerce-unsafe-to-closure.stderr b/src/test/ui/closures/coerce-unsafe-to-closure.stderr index 57043c335c0..bd095c2d83d 100644 --- a/src/test/ui/closures/coerce-unsafe-to-closure.stderr +++ b/src/test/ui/closures/coerce-unsafe-to-closure.stderr @@ -2,12 +2,12 @@ error[E0277]: expected a `FnOnce<(&str,)>` closure, found `unsafe extern "rust-i --> $DIR/coerce-unsafe-to-closure.rs:2:44 | LL | let x: Option<&[u8]> = Some("foo").map(std::mem::transmute); - | --- ^^^^^^^^^^^^^^^^^^^ expected an `FnOnce<(&str,)>` closure, found `unsafe extern "rust-intrinsic" fn(_) -> _ {transmute::<_, _>}` + | --- ^^^^^^^^^^^^^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | = help: the trait `FnOnce<(&str,)>` is not implemented for `unsafe extern "rust-intrinsic" fn(_) -> _ {transmute::<_, _>}` - = note: unsafe functions must be wrapped in closures: `|| unsafe { /* code */ }` + = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `Option::<T>::map` --> $SRC_DIR/core/src/option.rs:LL:COL | diff --git a/src/test/ui/rfcs/rfc-2396-target_feature-11/fn-traits.stderr b/src/test/ui/rfcs/rfc-2396-target_feature-11/fn-traits.stderr index ea22d1c89b1..94a90a56854 100644 --- a/src/test/ui/rfcs/rfc-2396-target_feature-11/fn-traits.stderr +++ b/src/test/ui/rfcs/rfc-2396-target_feature-11/fn-traits.stderr @@ -53,7 +53,7 @@ error[E0277]: expected a `Fn<()>` closure, found `unsafe fn() {foo_unsafe}` --> $DIR/fn-traits.rs:28:10 | LL | call(foo_unsafe); - | ---- ^^^^^^^^^^ expected an `Fn<()>` closure, found `unsafe fn() {foo_unsafe}` + | ---- ^^^^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | @@ -70,7 +70,7 @@ error[E0277]: expected a `FnMut<()>` closure, found `unsafe fn() {foo_unsafe}` --> $DIR/fn-traits.rs:30:14 | LL | call_mut(foo_unsafe); - | -------- ^^^^^^^^^^ expected an `FnMut<()>` closure, found `unsafe fn() {foo_unsafe}` + | -------- ^^^^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | @@ -87,7 +87,7 @@ error[E0277]: expected a `FnOnce<()>` closure, found `unsafe fn() {foo_unsafe}` --> $DIR/fn-traits.rs:32:15 | LL | call_once(foo_unsafe); - | --------- ^^^^^^^^^^ expected an `FnOnce<()>` closure, found `unsafe fn() {foo_unsafe}` + | --------- ^^^^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | diff --git a/src/test/ui/unboxed-closures/unboxed-closures-unsafe-extern-fn.stderr b/src/test/ui/unboxed-closures/unboxed-closures-unsafe-extern-fn.stderr index fcd668c191f..18e133957ba 100644 --- a/src/test/ui/unboxed-closures/unboxed-closures-unsafe-extern-fn.stderr +++ b/src/test/ui/unboxed-closures/unboxed-closures-unsafe-extern-fn.stderr @@ -2,12 +2,12 @@ error[E0277]: expected a `Fn<(&isize,)>` closure, found `for<'r> unsafe fn(&'r i --> $DIR/unboxed-closures-unsafe-extern-fn.rs:20:21 | LL | let x = call_it(&square, 22); - | ------- ^^^^^^^ expected an `Fn<(&isize,)>` closure, found `for<'r> unsafe fn(&'r isize) -> isize {square}` + | ------- ^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | = help: the trait `for<'r> Fn<(&'r isize,)>` is not implemented for `for<'r> unsafe fn(&'r isize) -> isize {square}` - = note: unsafe functions must be wrapped in closures: `|| unsafe { /* code */ }` + = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `call_it` --> $DIR/unboxed-closures-unsafe-extern-fn.rs:9:15 | @@ -18,12 +18,12 @@ error[E0277]: expected a `FnMut<(&isize,)>` closure, found `for<'r> unsafe fn(&' --> $DIR/unboxed-closures-unsafe-extern-fn.rs:25:25 | LL | let y = call_it_mut(&mut square, 22); - | ----------- ^^^^^^^^^^^ expected an `FnMut<(&isize,)>` closure, found `for<'r> unsafe fn(&'r isize) -> isize {square}` + | ----------- ^^^^^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | = help: the trait `for<'r> FnMut<(&'r isize,)>` is not implemented for `for<'r> unsafe fn(&'r isize) -> isize {square}` - = note: unsafe functions must be wrapped in closures: `|| unsafe { /* code */ }` + = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `call_it_mut` --> $DIR/unboxed-closures-unsafe-extern-fn.rs:12:19 | @@ -34,12 +34,12 @@ error[E0277]: expected a `FnOnce<(&isize,)>` closure, found `for<'r> unsafe fn(& --> $DIR/unboxed-closures-unsafe-extern-fn.rs:30:26 | LL | let z = call_it_once(square, 22); - | ------------ ^^^^^^ expected an `FnOnce<(&isize,)>` closure, found `for<'r> unsafe fn(&'r isize) -> isize {square}` + | ------------ ^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | = help: the trait `for<'r> FnOnce<(&'r isize,)>` is not implemented for `for<'r> unsafe fn(&'r isize) -> isize {square}` - = note: unsafe functions must be wrapped in closures: `|| unsafe { /* code */ }` + = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `call_it_once` --> $DIR/unboxed-closures-unsafe-extern-fn.rs:15:20 | diff --git a/src/test/ui/unboxed-closures/unboxed-closures-wrong-arg-type-extern-fn.stderr b/src/test/ui/unboxed-closures/unboxed-closures-wrong-arg-type-extern-fn.stderr index 576806e3956..c826af3c4c3 100644 --- a/src/test/ui/unboxed-closures/unboxed-closures-wrong-arg-type-extern-fn.stderr +++ b/src/test/ui/unboxed-closures/unboxed-closures-wrong-arg-type-extern-fn.stderr @@ -2,12 +2,12 @@ error[E0277]: expected a `Fn<(&isize,)>` closure, found `unsafe fn(isize) -> isi --> $DIR/unboxed-closures-wrong-arg-type-extern-fn.rs:21:21 | LL | let x = call_it(&square, 22); - | ------- ^^^^^^^ expected an `Fn<(&isize,)>` closure, found `unsafe fn(isize) -> isize {square}` + | ------- ^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | = help: the trait `for<'r> Fn<(&'r isize,)>` is not implemented for `unsafe fn(isize) -> isize {square}` - = note: unsafe functions must be wrapped in closures: `|| unsafe { /* code */ }` + = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `call_it` --> $DIR/unboxed-closures-wrong-arg-type-extern-fn.rs:10:15 | @@ -18,12 +18,12 @@ error[E0277]: expected a `FnMut<(&isize,)>` closure, found `unsafe fn(isize) -> --> $DIR/unboxed-closures-wrong-arg-type-extern-fn.rs:26:25 | LL | let y = call_it_mut(&mut square, 22); - | ----------- ^^^^^^^^^^^ expected an `FnMut<(&isize,)>` closure, found `unsafe fn(isize) -> isize {square}` + | ----------- ^^^^^^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | = help: the trait `for<'r> FnMut<(&'r isize,)>` is not implemented for `unsafe fn(isize) -> isize {square}` - = note: unsafe functions must be wrapped in closures: `|| unsafe { /* code */ }` + = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `call_it_mut` --> $DIR/unboxed-closures-wrong-arg-type-extern-fn.rs:13:19 | @@ -34,12 +34,12 @@ error[E0277]: expected a `FnOnce<(&isize,)>` closure, found `unsafe fn(isize) -> --> $DIR/unboxed-closures-wrong-arg-type-extern-fn.rs:31:26 | LL | let z = call_it_once(square, 22); - | ------------ ^^^^^^ expected an `FnOnce<(&isize,)>` closure, found `unsafe fn(isize) -> isize {square}` + | ------------ ^^^^^^ call the function in a closure: `|| unsafe { /* code */ }` | | | required by a bound introduced by this call | = help: the trait `for<'r> FnOnce<(&'r isize,)>` is not implemented for `unsafe fn(isize) -> isize {square}` - = note: unsafe functions must be wrapped in closures: `|| unsafe { /* code */ }` + = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `call_it_once` --> $DIR/unboxed-closures-wrong-arg-type-extern-fn.rs:16:20 | |