diff --git a/CHANGELOG.md b/CHANGELOG.md index 3eaa0d199..f7295ecf4 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -5384,4 +5384,5 @@ Released 2018-09-13 [`allowed-idents-below-min-chars`]: https://doc.rust-lang.org/clippy/lint_configuration.html#allowed-idents-below-min-chars [`min-ident-chars-threshold`]: https://doc.rust-lang.org/clippy/lint_configuration.html#min-ident-chars-threshold [`accept-comment-above-statement`]: https://doc.rust-lang.org/clippy/lint_configuration.html#accept-comment-above-statement +[`accept-comment-above-attributes`]: https://doc.rust-lang.org/clippy/lint_configuration.html#accept-comment-above-attributes diff --git a/book/src/lint_configuration.md b/book/src/lint_configuration.md index 78a5f9da4..ccb24a536 100644 --- a/book/src/lint_configuration.md +++ b/book/src/lint_configuration.md @@ -705,3 +705,13 @@ Whether to accept a safety comment to be placed above the statement containing t * [`undocumented_unsafe_blocks`](https://rust-lang.github.io/rust-clippy/master/index.html#undocumented_unsafe_blocks) +## `accept-comment-above-attributes` +Whether to accept a safety comment to be placed above the attributes for the `unsafe` block + +**Default Value:** `false` (`bool`) + +--- +**Affected lints:** +* [`undocumented_unsafe_blocks`](https://rust-lang.github.io/rust-clippy/master/index.html#undocumented_unsafe_blocks) + + diff --git a/clippy_lints/src/lib.rs b/clippy_lints/src/lib.rs index 6ea329a95..a0ada107f 100644 --- a/clippy_lints/src/lib.rs +++ b/clippy_lints/src/lib.rs @@ -930,9 +930,11 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: )) }); let accept_comment_above_statement = conf.accept_comment_above_statement; + let accept_comment_above_attributes = conf.accept_comment_above_attributes; store.register_late_pass(move |_| { Box::new(undocumented_unsafe_blocks::UndocumentedUnsafeBlocks::new( accept_comment_above_statement, + accept_comment_above_attributes, )) }); let allow_mixed_uninlined = conf.allow_mixed_uninlined_format_args; diff --git a/clippy_lints/src/undocumented_unsafe_blocks.rs b/clippy_lints/src/undocumented_unsafe_blocks.rs index 1676c767a..a9deee967 100644 --- a/clippy_lints/src/undocumented_unsafe_blocks.rs +++ b/clippy_lints/src/undocumented_unsafe_blocks.rs @@ -95,12 +95,14 @@ declare_clippy_lint! { #[derive(Copy, Clone)] pub struct UndocumentedUnsafeBlocks { accept_comment_above_statement: bool, + accept_comment_above_attributes: bool, } impl UndocumentedUnsafeBlocks { - pub fn new(accept_comment_above_statement: bool) -> Self { + pub fn new(accept_comment_above_statement: bool, accept_comment_above_attributes: bool) -> Self { Self { accept_comment_above_statement, + accept_comment_above_attributes, } } } @@ -114,7 +116,12 @@ impl<'tcx> LateLintPass<'tcx> for UndocumentedUnsafeBlocks { && !is_lint_allowed(cx, UNDOCUMENTED_UNSAFE_BLOCKS, block.hir_id) && !is_unsafe_from_proc_macro(cx, block.span) && !block_has_safety_comment(cx, block.span) - && !block_parents_have_safety_comment(self.accept_comment_above_statement, cx, block.hir_id) + && !block_parents_have_safety_comment( + self.accept_comment_above_statement, + self.accept_comment_above_attributes, + cx, + block.hir_id, + ) { let source_map = cx.tcx.sess.source_map(); let span = if source_map.is_multiline(block.span) { @@ -328,6 +335,7 @@ fn is_unsafe_from_proc_macro(cx: &LateContext<'_>, span: Span) -> bool { // has a safety comment fn block_parents_have_safety_comment( accept_comment_above_statement: bool, + accept_comment_above_attributes: bool, cx: &LateContext<'_>, id: hir::HirId, ) -> bool { @@ -343,33 +351,77 @@ fn block_parents_have_safety_comment( }), ) = get_parent_node(cx.tcx, expr.hir_id) { + let hir_id = match get_parent_node(cx.tcx, expr.hir_id) { + Some(Node::Local(hir::Local { hir_id, .. })) => *hir_id, + Some(Node::Item(hir::Item { owner_id, .. })) => { + cx.tcx.hir().local_def_id_to_hir_id(owner_id.def_id) + }, + _ => unreachable!(), + }; + // if unsafe block is part of a let/const/static statement, // and accept_comment_above_statement is set to true // we accept the safety comment in the line the precedes this statement. - accept_comment_above_statement && span_in_body_has_safety_comment(cx, *span) + accept_comment_above_statement + && span_with_attrs_in_body_has_safety_comment( + cx, + *span, + hir_id, + accept_comment_above_attributes, + ) } else { - !is_branchy(expr) && span_in_body_has_safety_comment(cx, expr.span) + !is_branchy(expr) + && span_with_attrs_in_body_has_safety_comment( + cx, + expr.span, + expr.hir_id, + accept_comment_above_attributes, + ) } }, Node::Stmt(hir::Stmt { kind: - hir::StmtKind::Local(hir::Local { span, .. }) - | hir::StmtKind::Expr(hir::Expr { span, .. }) - | hir::StmtKind::Semi(hir::Expr { span, .. }), + hir::StmtKind::Local(hir::Local { span, hir_id, .. }) + | hir::StmtKind::Expr(hir::Expr { span, hir_id, .. }) + | hir::StmtKind::Semi(hir::Expr { span, hir_id, .. }), .. }) - | Node::Local(hir::Local { span, .. }) - | Node::Item(hir::Item { + | Node::Local(hir::Local { span, hir_id, .. }) => { + span_with_attrs_in_body_has_safety_comment(cx, *span, *hir_id, accept_comment_above_attributes) + }, + Node::Item(hir::Item { kind: hir::ItemKind::Const(..) | ItemKind::Static(..), span, + owner_id, .. - }) => span_in_body_has_safety_comment(cx, *span), + }) => span_with_attrs_in_body_has_safety_comment( + cx, + *span, + cx.tcx.hir().local_def_id_to_hir_id(owner_id.def_id), + accept_comment_above_attributes, + ), _ => false, }; } false } +/// Extends `span` to also include its attributes, then checks if that span has a safety comment. +fn span_with_attrs_in_body_has_safety_comment( + cx: &LateContext<'_>, + span: Span, + hir_id: HirId, + accept_comment_above_attributes: bool, +) -> bool { + let span = if accept_comment_above_attributes { + include_attrs_in_span(cx, hir_id, span) + } else { + span + }; + + span_in_body_has_safety_comment(cx, span) +} + /// Checks if an expression is "branchy", e.g. loop, match/if/etc. fn is_branchy(expr: &hir::Expr<'_>) -> bool { matches!( @@ -394,6 +446,15 @@ fn block_has_safety_comment(cx: &LateContext<'_>, span: Span) -> bool { ) || span_in_body_has_safety_comment(cx, span) } +fn include_attrs_in_span(cx: &LateContext<'_>, hir_id: HirId, span: Span) -> Span { + span.to(cx + .tcx + .hir() + .attrs(hir_id) + .iter() + .fold(span, |acc, attr| acc.to(attr.span))) +} + enum HasSafetyComment { Yes(BytePos), No, diff --git a/clippy_lints/src/utils/conf.rs b/clippy_lints/src/utils/conf.rs index e8c8d478f..b04b3177e 100644 --- a/clippy_lints/src/utils/conf.rs +++ b/clippy_lints/src/utils/conf.rs @@ -542,6 +542,10 @@ define_Conf! { /// /// Whether to accept a safety comment to be placed above the statement containing the `unsafe` block (accept_comment_above_statement: bool = false), + /// Lint: UNDOCUMENTED_UNSAFE_BLOCKS. + /// + /// Whether to accept a safety comment to be placed above the attributes for the `unsafe` block + (accept_comment_above_attributes: bool = false), } /// Search for the configuration file. diff --git a/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr b/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr index db2071eca..475b15a24 100644 --- a/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr +++ b/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr @@ -1,4 +1,5 @@ error: error reading Clippy's configuration file: unknown field `foobar`, expected one of + accept-comment-above-attributes accept-comment-above-statement allow-dbg-in-tests allow-expect-in-tests @@ -66,6 +67,7 @@ LL | foobar = 42 | ^^^^^^ error: error reading Clippy's configuration file: unknown field `barfoo`, expected one of + accept-comment-above-attributes accept-comment-above-statement allow-dbg-in-tests allow-expect-in-tests diff --git a/tests/ui-toml/undocumented_unsafe_blocks/clippy.toml b/tests/ui-toml/undocumented_unsafe_blocks/clippy.toml index 1c2e7aeaf..e6dbb3d37 100644 --- a/tests/ui-toml/undocumented_unsafe_blocks/clippy.toml +++ b/tests/ui-toml/undocumented_unsafe_blocks/clippy.toml @@ -1 +1,2 @@ accept-comment-above-statement = true +accept-comment-above-attributes = true diff --git a/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.rs b/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.rs index 533f90483..c0976f0d6 100644 --- a/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.rs +++ b/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.rs @@ -1,7 +1,8 @@ //@aux-build:proc_macro_unsafe.rs #![warn(clippy::undocumented_unsafe_blocks, clippy::unnecessary_safety_comment)] -#![allow(clippy::let_unit_value, clippy::missing_safety_doc)] +#![allow(deref_nullptr, clippy::let_unit_value, clippy::missing_safety_doc)] +#![feature(lint_reasons)] extern crate proc_macro_unsafe; @@ -531,4 +532,36 @@ fn issue_10832() { unsafe { a_const_function_with_a_very_long_name_to_break_the_line() }; } +fn issue_8679() { + // SAFETY: + #[allow(unsafe_code)] + unsafe {} + + // SAFETY: + #[expect(unsafe_code, reason = "totally safe")] + unsafe { + *std::ptr::null::() + }; + + // Safety: A safety comment + #[allow(unsafe_code)] + let _some_variable_with_a_very_long_name_to_break_the_line = + unsafe { a_function_with_a_very_long_name_to_break_the_line() }; + + // Safety: Another safety comment + #[allow(unsafe_code)] + const _SOME_CONST_WITH_A_VERY_LONG_NAME_TO_BREAK_THE_LINE: u32 = + unsafe { a_const_function_with_a_very_long_name_to_break_the_line() }; + + // Safety: Yet another safety comment + #[allow(unsafe_code)] + static _SOME_STATIC_WITH_A_VERY_LONG_NAME_TO_BREAK_THE_LINE: u32 = + unsafe { a_const_function_with_a_very_long_name_to_break_the_line() }; + + // SAFETY: + #[allow(unsafe_code)] + // This also works I guess + unsafe {} +} + fn main() {} diff --git a/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.stderr b/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.stderr index ac987a9e9..9a0fd0593 100644 --- a/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.stderr +++ b/tests/ui-toml/undocumented_unsafe_blocks/undocumented_unsafe_blocks.stderr @@ -1,5 +1,5 @@ error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:262:19 + --> $DIR/undocumented_unsafe_blocks.rs:263:19 | LL | /* Safety: */ unsafe {} | ^^^^^^^^^ @@ -8,7 +8,7 @@ LL | /* Safety: */ unsafe {} = note: `-D clippy::undocumented-unsafe-blocks` implied by `-D warnings` error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:266:5 + --> $DIR/undocumented_unsafe_blocks.rs:267:5 | LL | unsafe {} | ^^^^^^^^^ @@ -16,7 +16,7 @@ LL | unsafe {} = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:270:14 + --> $DIR/undocumented_unsafe_blocks.rs:271:14 | LL | let _ = [unsafe { 14 }, unsafe { 15 }, 42, unsafe { 16 }]; | ^^^^^^^^^^^^^ @@ -24,7 +24,7 @@ LL | let _ = [unsafe { 14 }, unsafe { 15 }, 42, unsafe { 16 }]; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:270:29 + --> $DIR/undocumented_unsafe_blocks.rs:271:29 | LL | let _ = [unsafe { 14 }, unsafe { 15 }, 42, unsafe { 16 }]; | ^^^^^^^^^^^^^ @@ -32,7 +32,7 @@ LL | let _ = [unsafe { 14 }, unsafe { 15 }, 42, unsafe { 16 }]; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:270:48 + --> $DIR/undocumented_unsafe_blocks.rs:271:48 | LL | let _ = [unsafe { 14 }, unsafe { 15 }, 42, unsafe { 16 }]; | ^^^^^^^^^^^^^ @@ -40,7 +40,7 @@ LL | let _ = [unsafe { 14 }, unsafe { 15 }, 42, unsafe { 16 }]; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:274:18 + --> $DIR/undocumented_unsafe_blocks.rs:275:18 | LL | let _ = (42, unsafe {}, "test", unsafe {}); | ^^^^^^^^^ @@ -48,7 +48,7 @@ LL | let _ = (42, unsafe {}, "test", unsafe {}); = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:274:37 + --> $DIR/undocumented_unsafe_blocks.rs:275:37 | LL | let _ = (42, unsafe {}, "test", unsafe {}); | ^^^^^^^^^ @@ -56,7 +56,7 @@ LL | let _ = (42, unsafe {}, "test", unsafe {}); = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:278:14 + --> $DIR/undocumented_unsafe_blocks.rs:279:14 | LL | let _ = *unsafe { &42 }; | ^^^^^^^^^^^^^^ @@ -64,7 +64,7 @@ LL | let _ = *unsafe { &42 }; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:283:19 + --> $DIR/undocumented_unsafe_blocks.rs:284:19 | LL | let _ = match unsafe {} { | ^^^^^^^^^ @@ -72,7 +72,7 @@ LL | let _ = match unsafe {} { = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:289:14 + --> $DIR/undocumented_unsafe_blocks.rs:290:14 | LL | let _ = &unsafe {}; | ^^^^^^^^^ @@ -80,7 +80,7 @@ LL | let _ = &unsafe {}; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:293:14 + --> $DIR/undocumented_unsafe_blocks.rs:294:14 | LL | let _ = [unsafe {}; 5]; | ^^^^^^^^^ @@ -88,7 +88,7 @@ LL | let _ = [unsafe {}; 5]; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:297:13 + --> $DIR/undocumented_unsafe_blocks.rs:298:13 | LL | let _ = unsafe {}; | ^^^^^^^^^ @@ -96,7 +96,7 @@ LL | let _ = unsafe {}; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:307:8 + --> $DIR/undocumented_unsafe_blocks.rs:308:8 | LL | t!(unsafe {}); | ^^^^^^^^^ @@ -104,7 +104,7 @@ LL | t!(unsafe {}); = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:313:13 + --> $DIR/undocumented_unsafe_blocks.rs:314:13 | LL | unsafe {} | ^^^^^^^^^ @@ -116,7 +116,7 @@ LL | t!(); = note: this error originates in the macro `t` (in Nightly builds, run with -Z macro-backtrace for more info) error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:321:5 + --> $DIR/undocumented_unsafe_blocks.rs:322:5 | LL | unsafe {} // SAFETY: | ^^^^^^^^^ @@ -124,7 +124,7 @@ LL | unsafe {} // SAFETY: = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:325:5 + --> $DIR/undocumented_unsafe_blocks.rs:326:5 | LL | unsafe { | ^^^^^^^^ @@ -132,7 +132,7 @@ LL | unsafe { = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:335:5 + --> $DIR/undocumented_unsafe_blocks.rs:336:5 | LL | unsafe {}; | ^^^^^^^^^ @@ -140,7 +140,7 @@ LL | unsafe {}; = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:339:20 + --> $DIR/undocumented_unsafe_blocks.rs:340:20 | LL | println!("{}", unsafe { String::from_utf8_unchecked(vec![]) }); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -148,7 +148,7 @@ LL | println!("{}", unsafe { String::from_utf8_unchecked(vec![]) }); = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:346:5 + --> $DIR/undocumented_unsafe_blocks.rs:347:5 | LL | unsafe impl A for () {} | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -156,7 +156,7 @@ LL | unsafe impl A for () {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:353:9 + --> $DIR/undocumented_unsafe_blocks.rs:354:9 | LL | unsafe impl B for (u32) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -164,7 +164,7 @@ LL | unsafe impl B for (u32) {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:374:13 + --> $DIR/undocumented_unsafe_blocks.rs:375:13 | LL | unsafe impl T for $t {} | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -176,7 +176,7 @@ LL | no_safety_comment!(()); = note: this error originates in the macro `no_safety_comment` (in Nightly builds, run with -Z macro-backtrace for more info) error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:399:13 + --> $DIR/undocumented_unsafe_blocks.rs:400:13 | LL | unsafe impl T for $t {} | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -188,7 +188,7 @@ LL | no_safety_comment!(()); = note: this error originates in the macro `no_safety_comment` (in Nightly builds, run with -Z macro-backtrace for more info) error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:407:5 + --> $DIR/undocumented_unsafe_blocks.rs:408:5 | LL | unsafe impl T for (i32) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -196,7 +196,7 @@ LL | unsafe impl T for (i32) {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:399:13 + --> $DIR/undocumented_unsafe_blocks.rs:400:13 | LL | unsafe impl T for $t {} | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -208,7 +208,7 @@ LL | no_safety_comment!(u32); = note: this error originates in the macro `no_safety_comment` (in Nightly builds, run with -Z macro-backtrace for more info) error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:413:5 + --> $DIR/undocumented_unsafe_blocks.rs:414:5 | LL | unsafe impl T for (bool) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -216,7 +216,7 @@ LL | unsafe impl T for (bool) {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:459:5 + --> $DIR/undocumented_unsafe_blocks.rs:460:5 | LL | unsafe impl NoComment for () {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -224,7 +224,7 @@ LL | unsafe impl NoComment for () {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:463:19 + --> $DIR/undocumented_unsafe_blocks.rs:464:19 | LL | /* SAFETY: */ unsafe impl InlineComment for () {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -232,7 +232,7 @@ LL | /* SAFETY: */ unsafe impl InlineComment for () {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:467:5 + --> $DIR/undocumented_unsafe_blocks.rs:468:5 | LL | unsafe impl TrailingComment for () {} // SAFETY: | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -240,20 +240,20 @@ LL | unsafe impl TrailingComment for () {} // SAFETY: = help: consider adding a safety comment on the preceding line error: constant item has unnecessary safety comment - --> $DIR/undocumented_unsafe_blocks.rs:471:5 + --> $DIR/undocumented_unsafe_blocks.rs:472:5 | LL | const BIG_NUMBER: i32 = 1000000; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | help: consider removing the safety comment - --> $DIR/undocumented_unsafe_blocks.rs:470:5 + --> $DIR/undocumented_unsafe_blocks.rs:471:5 | LL | // SAFETY: | ^^^^^^^^^^ = note: `-D clippy::unnecessary-safety-comment` implied by `-D warnings` error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:472:5 + --> $DIR/undocumented_unsafe_blocks.rs:473:5 | LL | unsafe impl Interference for () {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -261,7 +261,7 @@ LL | unsafe impl Interference for () {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:479:5 + --> $DIR/undocumented_unsafe_blocks.rs:480:5 | LL | unsafe impl ImplInFn for () {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -269,7 +269,7 @@ LL | unsafe impl ImplInFn for () {} = help: consider adding a safety comment on the preceding line error: unsafe impl missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:488:1 + --> $DIR/undocumented_unsafe_blocks.rs:489:1 | LL | unsafe impl CrateRoot for () {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -277,7 +277,7 @@ LL | unsafe impl CrateRoot for () {} = help: consider adding a safety comment on the preceding line error: statement has unnecessary safety comment - --> $DIR/undocumented_unsafe_blocks.rs:501:5 + --> $DIR/undocumented_unsafe_blocks.rs:502:5 | LL | / let _ = { LL | | if unsafe { true } { @@ -289,13 +289,13 @@ LL | | }; | |______^ | help: consider removing the safety comment - --> $DIR/undocumented_unsafe_blocks.rs:500:5 + --> $DIR/undocumented_unsafe_blocks.rs:501:5 | LL | // SAFETY: this is more than one level away, so it should warn | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:502:12 + --> $DIR/undocumented_unsafe_blocks.rs:503:12 | LL | if unsafe { true } { | ^^^^^^^^^^^^^^^ @@ -303,7 +303,7 @@ LL | if unsafe { true } { = help: consider adding a safety comment on the preceding line error: unsafe block missing a safety comment - --> $DIR/undocumented_unsafe_blocks.rs:505:23 + --> $DIR/undocumented_unsafe_blocks.rs:506:23 | LL | let bar = unsafe {}; | ^^^^^^^^^