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Stabilize unsafe extern blocks (RFC 3484)

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This commit is contained in:
Santiago Pastorino 2024-07-18 11:54:04 -03:00
parent 20f23abbec
commit 8366c7fe9c
No known key found for this signature in database
GPG Key ID: 8131A24E0C79EFAF
41 changed files with 85 additions and 163 deletions
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20
compiler/rustc_ast_passes/src/ast_validation.rs
View File

@ -452,11 +452,6 @@ fn check_item_safety(&self, span: Span, safety: Safety) {
item_span: span,
block: Some(self.current_extern_span().shrink_to_lo()),
});
} else if !self.features.unsafe_extern_blocks {
self.dcx().emit_err(errors::InvalidSafetyOnExtern {
item_span: span,
block: None,
});
}
}
}
@ -1053,11 +1048,9 @@ fn visit_item(&mut self, item: &'a Item) {
errors::VisibilityNotPermittedNote::IndividualForeignItems,
);
if this.features.unsafe_extern_blocks {
if &Safety::Default == safety {
if item.span.at_least_rust_2024() {
this.dcx()
.emit_err(errors::MissingUnsafeOnExtern { span: item.span });
this.dcx().emit_err(errors::MissingUnsafeOnExtern { span: item.span });
} else {
this.lint_buffer.buffer_lint(
MISSING_UNSAFE_ON_EXTERN,
@ -1069,17 +1062,6 @@ fn visit_item(&mut self, item: &'a Item) {
);
}
}
} else if let &Safety::Unsafe(span) = safety {
let mut diag = this
.dcx()
.create_err(errors::UnsafeItem { span, kind: "extern block" });
rustc_session::parse::add_feature_diagnostics(
&mut diag,
self.session,
sym::unsafe_extern_blocks,
);
diag.emit();
}
if abi.is_none() {
this.maybe_lint_missing_abi(item.span, item.id);

4
compiler/rustc_ast_passes/src/feature_gate.rs
View File

@ -561,10 +561,6 @@ macro_rules! gate_all {
gate_all!(precise_capturing, "precise captures on `impl Trait` are experimental");
gate_all!(global_registration, "global registration is experimental");
gate_all!(unsafe_attributes, "`#[unsafe()]` markers for attributes are experimental");
gate_all!(
unsafe_extern_blocks,
"`unsafe extern {}` blocks and `safe` keyword are experimental"
);
gate_all!(return_type_notation, "return type notation is experimental");
if !visitor.features.never_patterns {

2
compiler/rustc_feature/src/accepted.rs
View File

@ -387,6 +387,8 @@ macro_rules! declare_features {
(accepted, unrestricted_attribute_tokens, "1.34.0", Some(55208)),
/// The `unsafe_op_in_unsafe_fn` lint (allowed by default): no longer treat an unsafe function as an unsafe block.
(accepted, unsafe_block_in_unsafe_fn, "1.52.0", Some(71668)),
/// Allows unsafe on extern declarations and safety qualifiers over internal items.
(accepted, unsafe_extern_blocks, "CURRENT_RUSTC_VERSION", Some(123743)),
/// Allows importing and reexporting macros with `use`,
/// enables macro modularization in general.
(accepted, use_extern_macros, "1.30.0", Some(35896)),

2
compiler/rustc_feature/src/unstable.rs
View File

@ -628,8 +628,6 @@ pub fn internal(&self, feature: Symbol) -> bool {
(incomplete, unnamed_fields, "1.74.0", Some(49804)),
/// Allows unsafe attributes.
(unstable, unsafe_attributes, "1.80.0", Some(123757)),
/// Allows unsafe on extern declarations and safety qualifiers over internal items.
(unstable, unsafe_extern_blocks, "1.80.0", Some(123743)),
/// Allows const generic parameters to be defined with types that
/// are not `Sized`, e.g. `fn foo<const N: [u8]>() {`.
(incomplete, unsized_const_params, "CURRENT_RUSTC_VERSION", Some(95174)),

1
compiler/rustc_lint_defs/src/builtin.rs
View File

@ -4865,7 +4865,6 @@
/// ### Example
///
/// ```rust
/// #![feature(unsafe_extern_blocks)]
/// #![warn(missing_unsafe_on_extern)]
/// #![allow(dead_code)]
///

3
compiler/rustc_parse/src/parser/mod.rs
View File

@ -1205,9 +1205,6 @@ fn parse_safety(&mut self, case: Case) -> Safety {
if self.eat_keyword_case(kw::Unsafe, case) {
Safety::Unsafe(self.prev_token.uninterpolated_span())
} else if self.eat_keyword_case(kw::Safe, case) {
self.psess
.gated_spans
.gate(sym::unsafe_extern_blocks, self.prev_token.uninterpolated_span());
Safety::Safe(self.prev_token.uninterpolated_span())
} else {
Safety::Default

3
tests/rustdoc/unsafe-extern-blocks.rs
View File

@ -1,6 +1,5 @@
// Test to ensure the feature is working as expected.
#![feature(unsafe_extern_blocks)]
#![crate_name = "foo"]
// @has 'foo/index.html'
@ -13,7 +12,7 @@
// @count - '//ul[@class="item-table"]//sup[@title="unsafe function"]' 1
// @has - '//ul[@class="item-table"]//sup[@title="unsafe function"]' '⚠'
unsafe extern {
unsafe extern "C" {
// @has 'foo/static.FOO.html'
// @has - '//pre[@class="rust item-decl"]' 'pub static FOO: i32'
pub safe static FOO: i32;

13
tests/ui/feature-gates/feature-gate-unsafe-extern-blocks.rs
View File

@ -1,13 +0,0 @@
unsafe extern "C" {
//~^ ERROR extern block cannot be declared unsafe
}
// We can't gate `unsafe extern` blocks themselves since they were previously
// allowed, but we should gate the `safe` soft keyword.
#[cfg(any())]
unsafe extern "C" {
safe fn foo();
//~^ ERROR `unsafe extern {}` blocks and `safe` keyword are experimental
}
fn main() {}

23
tests/ui/feature-gates/feature-gate-unsafe-extern-blocks.stderr
View File

@ -1,23 +0,0 @@
error: extern block cannot be declared unsafe
--> $DIR/feature-gate-unsafe-extern-blocks.rs:1:1
|
LL | unsafe extern "C" {
| ^^^^^^
|
= note: see issue #123743 <https://github.com/rust-lang/rust/issues/123743> for more information
= help: add `#![feature(unsafe_extern_blocks)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error[E0658]: `unsafe extern {}` blocks and `safe` keyword are experimental
--> $DIR/feature-gate-unsafe-extern-blocks.rs:9:5
|
LL | safe fn foo();
| ^^^^
|
= note: see issue #123743 <https://github.com/rust-lang/rust/issues/123743> for more information
= help: add `#![feature(unsafe_extern_blocks)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0658`.

1
tests/ui/lint/unsafe_code/unsafe-extern-blocks.rs
View File

@ -1,4 +1,3 @@
#![feature(unsafe_extern_blocks)]
#![deny(unsafe_code)]
#[allow(unsafe_code)]

4
tests/ui/lint/unsafe_code/unsafe-extern-blocks.stderr
View File

@ -1,5 +1,5 @@
error: usage of an `unsafe extern` block
--> $DIR/unsafe-extern-blocks.rs:9:1
--> $DIR/unsafe-extern-blocks.rs:8:1
|
LL | / unsafe extern "C" {
LL | |
@ -8,7 +8,7 @@ LL | | }
| |_^
|
note: the lint level is defined here
--> $DIR/unsafe-extern-blocks.rs:2:9
--> $DIR/unsafe-extern-blocks.rs:1:9
|
LL | #![deny(unsafe_code)]
| ^^^^^^^^^^^

2
tests/ui/parser/unsafe-foreign-mod-2.rs
View File

@ -1,8 +1,6 @@
extern "C" unsafe {
//~^ ERROR expected `{`, found keyword `unsafe`
//~| ERROR extern block cannot be declared unsafe
unsafe fn foo();
//~^ ERROR items in unadorned `extern` blocks cannot have safety qualifiers
}
fn main() {}

18
tests/ui/parser/unsafe-foreign-mod-2.stderr
View File

@ -4,21 +4,5 @@ error: expected `{`, found keyword `unsafe`
LL | extern "C" unsafe {
| ^^^^^^ expected `{`
error: extern block cannot be declared unsafe
--> $DIR/unsafe-foreign-mod-2.rs:1:12
|
LL | extern "C" unsafe {
| ^^^^^^
|
= note: see issue #123743 <https://github.com/rust-lang/rust/issues/123743> for more information
= help: add `#![feature(unsafe_extern_blocks)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error: items in unadorned `extern` blocks cannot have safety qualifiers
--> $DIR/unsafe-foreign-mod-2.rs:4:5
|
LL | unsafe fn foo();
| ^^^^^^^^^^^^^^^^
error: aborting due to 3 previous errors
error: aborting due to 1 previous error

6
tests/ui/parser/unsafe-foreign-mod.rs
View File

@ -1,5 +1,5 @@
unsafe extern "C" {
//~^ ERROR extern block cannot be declared unsafe
}
//@ check-pass
unsafe extern "C" {}
fn main() {}

12
tests/ui/parser/unsafe-foreign-mod.stderr
View File

@ -1,12 +0,0 @@
error: extern block cannot be declared unsafe
--> $DIR/unsafe-foreign-mod.rs:1:1
|
LL | unsafe extern "C" {
| ^^^^^^
|
= note: see issue #123743 <https://github.com/rust-lang/rust/issues/123743> for more information
= help: add `#![feature(unsafe_extern_blocks)]` to the crate attributes to enable
= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
error: aborting due to 1 previous error

8
tests/ui/rust-2024/safe-outside-extern.rs
View File

@ -1,29 +1,21 @@
//@ revisions: gated ungated
#![cfg_attr(gated, feature(unsafe_extern_blocks))]
safe fn foo() {}
//~^ ERROR: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
//[ungated]~| ERROR: unsafe extern {}` blocks and `safe` keyword are experimental [E0658]
safe static FOO: i32 = 1;
//~^ ERROR: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
//[ungated]~| ERROR: unsafe extern {}` blocks and `safe` keyword are experimental [E0658]
trait Foo {
safe fn foo();
//~^ ERROR: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
//[ungated]~| ERROR: unsafe extern {}` blocks and `safe` keyword are experimental [E0658]
}
impl Foo for () {
safe fn foo() {}
//~^ ERROR: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
//[ungated]~| ERROR: unsafe extern {}` blocks and `safe` keyword are experimental [E0658]
}
type FnPtr = safe fn(i32, i32) -> i32;
//~^ ERROR: function pointers cannot be declared with `safe` safety qualifier
//[ungated]~| ERROR: unsafe extern {}` blocks and `safe` keyword are experimental [E0658]
unsafe static LOL: u8 = 0;
//~^ ERROR: static items cannot be declared with `unsafe` safety qualifier outside of `extern` block

38
tests/ui/rust-2024/safe-outside-extern.stderr Normal file
View File

@ -0,0 +1,38 @@
error: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
--> $DIR/safe-outside-extern.rs:1:1
|
LL | safe fn foo() {}
| ^^^^^^^^^^^^^^^^
error: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
--> $DIR/safe-outside-extern.rs:4:1
|
LL | safe static FOO: i32 = 1;
| ^^^^^^^^^^^^^^^^^^^^^^^^^
error: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
--> $DIR/safe-outside-extern.rs:8:5
|
LL | safe fn foo();
| ^^^^^^^^^^^^^^
error: items outside of `unsafe extern { }` cannot be declared with `safe` safety qualifier
--> $DIR/safe-outside-extern.rs:13:5
|
LL | safe fn foo() {}
| ^^^^^^^^^^^^^^^^
error: function pointers cannot be declared with `safe` safety qualifier
--> $DIR/safe-outside-extern.rs:17:14
|
LL | type FnPtr = safe fn(i32, i32) -> i32;
| ^^^^^^^^^^^^^^^^^^^^^^^^
error: static items cannot be declared with `unsafe` safety qualifier outside of `extern` block
--> $DIR/safe-outside-extern.rs:20:1
|
LL | unsafe static LOL: u8 = 0;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 6 previous errors

4
tests/ui/rust-2024/unsafe-extern-blocks/extern-items-unsafe.edition2021.stderr
View File

@ -1,5 +1,5 @@
error[E0133]: call to unsafe function `test1` is unsafe and requires unsafe function or block
--> $DIR/extern-items-unsafe.rs:14:5
--> $DIR/extern-items-unsafe.rs:12:5
|
LL | test1(TEST1);
| ^^^^^^^^^^^^ call to unsafe function
@ -7,7 +7,7 @@ LL | test1(TEST1);
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: use of extern static is unsafe and requires unsafe function or block
--> $DIR/extern-items-unsafe.rs:14:11
--> $DIR/extern-items-unsafe.rs:12:11
|
LL | test1(TEST1);
| ^^^^^ use of extern static

4
tests/ui/rust-2024/unsafe-extern-blocks/extern-items-unsafe.edition2024.stderr
View File

@ -1,5 +1,5 @@
error[E0133]: call to unsafe function `test1` is unsafe and requires unsafe block
--> $DIR/extern-items-unsafe.rs:14:5
--> $DIR/extern-items-unsafe.rs:12:5
|
LL | test1(TEST1);
| ^^^^^^^^^^^^ call to unsafe function
@ -7,7 +7,7 @@ LL | test1(TEST1);
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: use of extern static is unsafe and requires unsafe block
--> $DIR/extern-items-unsafe.rs:14:11
--> $DIR/extern-items-unsafe.rs:12:11
|
LL | test1(TEST1);
| ^^^^^ use of extern static

2
tests/ui/rust-2024/unsafe-extern-blocks/extern-items-unsafe.rs
View File

@ -3,8 +3,6 @@
//@[edition2024] edition:2024
//@[edition2024] compile-flags: -Zunstable-options
#![feature(unsafe_extern_blocks)]
unsafe extern "C" {
static TEST1: i32;
fn test1(i: i32);

2
tests/ui/rust-2024/unsafe-extern-blocks/extern-items.edition2024.stderr
View File

@ -1,5 +1,5 @@
error: extern blocks must be unsafe
--> $DIR/extern-items.rs:9:1
--> $DIR/extern-items.rs:7:1
|
LL | / extern "C" {
LL | |

2
tests/ui/rust-2024/unsafe-extern-blocks/extern-items.rs
View File

@ -4,8 +4,6 @@
//@[edition2024] edition:2024
//@[edition2024] compile-flags: -Zunstable-options
#![feature(unsafe_extern_blocks)]
extern "C" {
//[edition2024]~^ ERROR extern blocks must be unsafe
static TEST1: i32;

3
tests/ui/rust-2024/unsafe-extern-blocks/safe-impl-trait.rs
View File

@ -1,6 +1,3 @@
//@ revisions: gated ungated
#![cfg_attr(gated, feature(unsafe_extern_blocks))]
trait Bar {}
safe impl Bar for () { }
//~^ ERROR expected one of `!` or `::`, found keyword `impl`

2
tests/ui/rust-2024/unsafe-extern-blocks/safe-impl-trait.gated.stderr → tests/ui/rust-2024/unsafe-extern-blocks/safe-impl-trait.stderr
View File

@ -1,5 +1,5 @@
error: expected one of `!` or `::`, found keyword `impl`
--> $DIR/safe-impl-trait.rs:5:6
--> $DIR/safe-impl-trait.rs:2:6
|
LL | safe impl Bar for () { }
| ^^^^ expected one of `!` or `::`

2
tests/ui/rust-2024/unsafe-extern-blocks/safe-items.rs
View File

@ -4,8 +4,6 @@
//@[edition2024] compile-flags: -Zunstable-options
//@ check-pass
#![feature(unsafe_extern_blocks)]
unsafe extern "C" {
safe static TEST1: i32;
safe fn test1(i: i32);

3
tests/ui/rust-2024/unsafe-extern-blocks/safe-trait.rs
View File

@ -1,6 +1,3 @@
//@ revisions: gated ungated
#![cfg_attr(gated, feature(unsafe_extern_blocks))]
safe trait Foo {}
//~^ ERROR expected one of `!` or `::`, found keyword `trait`

8
tests/ui/rust-2024/unsafe-extern-blocks/safe-trait.stderr Normal file
View File

@ -0,0 +1,8 @@
error: expected one of `!` or `::`, found keyword `trait`
--> $DIR/safe-trait.rs:1:6
|
LL | safe trait Foo {}
| ^^^^^ expected one of `!` or `::`
error: aborting due to 1 previous error

4
tests/ui/rust-2024/unsafe-extern-blocks/safe-unsafe-on-unadorned-extern-block.edition2021.stderr
View File

@ -1,5 +1,5 @@
error: items in unadorned `extern` blocks cannot have safety qualifiers
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:10:5
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:8:5
|
LL | safe static TEST1: i32;
| ^^^^^^^^^^^^^^^^^^^^^^^
@ -10,7 +10,7 @@ LL | unsafe extern "C" {
| ++++++
error: items in unadorned `extern` blocks cannot have safety qualifiers
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:12:5
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:10:5
|
LL | safe fn test1(i: i32);
| ^^^^^^^^^^^^^^^^^^^^^^

6
tests/ui/rust-2024/unsafe-extern-blocks/safe-unsafe-on-unadorned-extern-block.edition2024.stderr
View File

@ -1,5 +1,5 @@
error: extern blocks must be unsafe
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:8:1
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:6:1
|
LL | / extern "C" {
LL | |
@ -11,7 +11,7 @@ LL | | }
| |_^
error: items in unadorned `extern` blocks cannot have safety qualifiers
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:10:5
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:8:5
|
LL | safe static TEST1: i32;
| ^^^^^^^^^^^^^^^^^^^^^^^
@ -22,7 +22,7 @@ LL | unsafe extern "C" {
| ++++++
error: items in unadorned `extern` blocks cannot have safety qualifiers
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:12:5
--> $DIR/safe-unsafe-on-unadorned-extern-block.rs:10:5
|
LL | safe fn test1(i: i32);
| ^^^^^^^^^^^^^^^^^^^^^^

2
tests/ui/rust-2024/unsafe-extern-blocks/safe-unsafe-on-unadorned-extern-block.rs
View File

@ -3,8 +3,6 @@
//@[edition2024] edition:2024
//@[edition2024] compile-flags: -Zunstable-options
#![feature(unsafe_extern_blocks)]
extern "C" {
//[edition2024]~^ ERROR extern blocks must be unsafe
safe static TEST1: i32;

1
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-extern-suggestion.fixed
View File

@ -1,6 +1,5 @@
//@ run-rustfix
#![feature(unsafe_extern_blocks)]
#![deny(missing_unsafe_on_extern)]
#![allow(unused)]

1
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-extern-suggestion.rs
View File

@ -1,6 +1,5 @@
//@ run-rustfix
#![feature(unsafe_extern_blocks)]
#![deny(missing_unsafe_on_extern)]
#![allow(unused)]

4
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-extern-suggestion.stderr
View File

@ -1,5 +1,5 @@
error: extern blocks should be unsafe
--> $DIR/unsafe-extern-suggestion.rs:7:1
--> $DIR/unsafe-extern-suggestion.rs:6:1
|
LL | extern "C" {
| ^
@ -16,7 +16,7 @@ LL | | }
= warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2024!
= note: for more information, see issue #123743 <https://github.com/rust-lang/rust/issues/123743>
note: the lint level is defined here
--> $DIR/unsafe-extern-suggestion.rs:4:9
--> $DIR/unsafe-extern-suggestion.rs:3:9
|
LL | #![deny(missing_unsafe_on_extern)]
| ^^^^^^^^^^^^^^^^^^^^^^^^

4
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-items.edition2021.stderr
View File

@ -1,5 +1,5 @@
error[E0133]: call to unsafe function `test1` is unsafe and requires unsafe function or block
--> $DIR/unsafe-items.rs:20:5
--> $DIR/unsafe-items.rs:18:5
|
LL | test1(TEST1);
| ^^^^^^^^^^^^ call to unsafe function
@ -7,7 +7,7 @@ LL | test1(TEST1);
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: use of extern static is unsafe and requires unsafe function or block
--> $DIR/unsafe-items.rs:20:11
--> $DIR/unsafe-items.rs:18:11
|
LL | test1(TEST1);
| ^^^^^ use of extern static

4
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-items.edition2024.stderr
View File

@ -1,5 +1,5 @@
error[E0133]: call to unsafe function `test1` is unsafe and requires unsafe block
--> $DIR/unsafe-items.rs:20:5
--> $DIR/unsafe-items.rs:18:5
|
LL | test1(TEST1);
| ^^^^^^^^^^^^ call to unsafe function
@ -7,7 +7,7 @@ LL | test1(TEST1);
= note: consult the function's documentation for information on how to avoid undefined behavior
error[E0133]: use of extern static is unsafe and requires unsafe block
--> $DIR/unsafe-items.rs:20:11
--> $DIR/unsafe-items.rs:18:11
|
LL | test1(TEST1);
| ^^^^^ use of extern static

2
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-items.rs
View File

@ -3,8 +3,6 @@
//@[edition2024] edition:2024
//@[edition2024] compile-flags: -Zunstable-options
#![feature(unsafe_extern_blocks)]
unsafe extern "C" {
unsafe static TEST1: i32;
unsafe fn test1(i: i32);

1
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-on-extern-block-issue-126756.fixed
View File

@ -1,6 +1,5 @@
//@ run-rustfix
#![feature(unsafe_extern_blocks)]
#![allow(dead_code)]
unsafe extern "C" {

1
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-on-extern-block-issue-126756.rs
View File

@ -1,6 +1,5 @@
//@ run-rustfix
#![feature(unsafe_extern_blocks)]
#![allow(dead_code)]
extern "C" {

2
tests/ui/rust-2024/unsafe-extern-blocks/unsafe-on-extern-block-issue-126756.stderr
View File

@ -1,5 +1,5 @@
error: items in unadorned `extern` blocks cannot have safety qualifiers
--> $DIR/unsafe-on-extern-block-issue-126756.rs:7:5
--> $DIR/unsafe-on-extern-block-issue-126756.rs:6:5
|
LL | unsafe fn foo();
| ^^^^^^^^^^^^^^^^

1
tests/ui/unpretty/expanded-exhaustive.rs
View File

@ -25,7 +25,6 @@
#![feature(trait_alias)]
#![feature(try_blocks)]
#![feature(unnamed_fields)]
#![feature(unsafe_extern_blocks)]
#![feature(yeet_expr)]
#![allow(incomplete_features)]

1
tests/ui/unpretty/expanded-exhaustive.stdout
View File

@ -26,7 +26,6 @@
#![feature(trait_alias)]
#![feature(try_blocks)]
#![feature(unnamed_fields)]
#![feature(unsafe_extern_blocks)]
#![feature(yeet_expr)]
#![allow(incomplete_features)]
#[prelude_import]