Auto merge of #107386 - flip1995:clippyup, r=Manishearth

Update Clippy

r? `@Manishearth`

Cargo.lock

@@ -724,7 +724,7 @@ dependencies = [
 
 [[package]]
 name = "clippy"
-version = "0.1.68"
+version = "0.1.69"
 dependencies = [
  "clippy_lints",
  "clippy_utils",
@@ -766,7 +766,7 @@ dependencies = [
 
 [[package]]
 name = "clippy_lints"
-version = "0.1.68"
+version = "0.1.69"
 dependencies = [
  "cargo_metadata 0.14.0",
  "clippy_utils",
@@ -789,7 +789,7 @@ dependencies = [
 
 [[package]]
 name = "clippy_utils"
-version = "0.1.68"
+version = "0.1.69"
 dependencies = [
  "arrayvec",
  "if_chain",
@@ -1168,7 +1168,7 @@ checksum = "a0afaad2b26fa326569eb264b1363e8ae3357618c43982b3f285f0774ce76b69"
 
 [[package]]
 name = "declare_clippy_lint"
-version = "0.1.68"
+version = "0.1.69"
 dependencies = [
  "itertools",
  "quote",

src/tools/clippy/.github/workflows/clippy_bors.yml

@@ -157,6 +157,11 @@ jobs:
     - name: Test metadata collection
       run: cargo collect-metadata
 
+    - name: Test lint_configuration.md is up-to-date
+      run: |
+        echo "run \`cargo collect-metadata\` if this fails"
+        git update-index --refresh
+
   integration_build:
     needs: changelog
     runs-on: ubuntu-latest

src/tools/clippy/CHANGELOG.md

@@ -6,11 +6,204 @@ document.
 
 ## Unreleased / Beta / In Rust Nightly
 
-[4f142aa1...master](https://github.com/rust-lang/rust-clippy/compare/4f142aa1...master)
+[d822110d...master](https://github.com/rust-lang/rust-clippy/compare/d822110d...master)
+
+## Rust 1.67
+
+Current stable, released 2023-01-26
+
+[4f142aa1...d822110d](https://github.com/rust-lang/rust-clippy/compare/4f142aa1...d822110d)
+
+### New Lints
+
+* [`seek_from_current`]
+  [#9681](https://github.com/rust-lang/rust-clippy/pull/9681)
+* [`from_raw_with_void_ptr`]
+  [#9690](https://github.com/rust-lang/rust-clippy/pull/9690)
+* [`misnamed_getters`]
+  [#9770](https://github.com/rust-lang/rust-clippy/pull/9770)
+* [`seek_to_start_instead_of_rewind`]
+  [#9667](https://github.com/rust-lang/rust-clippy/pull/9667)
+* [`suspicious_xor_used_as_pow`]
+  [#9506](https://github.com/rust-lang/rust-clippy/pull/9506)
+* [`unnecessary_safety_doc`]
+  [#9822](https://github.com/rust-lang/rust-clippy/pull/9822)
+* [`unchecked_duration_subtraction`]
+  [#9570](https://github.com/rust-lang/rust-clippy/pull/9570)
+* [`manual_is_ascii_check`]
+  [#9765](https://github.com/rust-lang/rust-clippy/pull/9765)
+* [`unnecessary_safety_comment`]
+  [#9851](https://github.com/rust-lang/rust-clippy/pull/9851)
+* [`let_underscore_future`]
+  [#9760](https://github.com/rust-lang/rust-clippy/pull/9760)
+* [`manual_let_else`]
+  [#8437](https://github.com/rust-lang/rust-clippy/pull/8437)
+
+### Moves and Deprecations
+
+* Moved [`uninlined_format_args`] to `style` (Now warn-by-default)
+  [#9865](https://github.com/rust-lang/rust-clippy/pull/9865)
+* Moved [`needless_collect`] to `nursery` (Now allow-by-default)
+  [#9705](https://github.com/rust-lang/rust-clippy/pull/9705)
+* Moved [`or_fun_call`] to `nursery` (Now allow-by-default)
+  [#9829](https://github.com/rust-lang/rust-clippy/pull/9829)
+* Uplifted [`let_underscore_lock`] into rustc
+  [#9697](https://github.com/rust-lang/rust-clippy/pull/9697)
+* Uplifted [`let_underscore_drop`] into rustc
+  [#9697](https://github.com/rust-lang/rust-clippy/pull/9697)
+* Moved [`bool_to_int_with_if`] to `pedantic` (Now allow-by-default)
+  [#9830](https://github.com/rust-lang/rust-clippy/pull/9830)
+* Move `index_refutable_slice` to `pedantic` (Now warn-by-default)
+  [#9975](https://github.com/rust-lang/rust-clippy/pull/9975)
+* Moved [`manual_clamp`] to `nursery` (Now allow-by-default)
+  [#10101](https://github.com/rust-lang/rust-clippy/pull/10101)
+
+### Enhancements
+
+* The scope of `#![clippy::msrv]` is now tracked correctly
+  [#9924](https://github.com/rust-lang/rust-clippy/pull/9924)
+* `#[clippy::msrv]` can now be used as an outer attribute
+  [#9860](https://github.com/rust-lang/rust-clippy/pull/9860)
+* Clippy will now avoid Cargo's cache, if `Cargo.toml` or `clippy.toml` have changed
+  [#9707](https://github.com/rust-lang/rust-clippy/pull/9707)
+* [`uninlined_format_args`]: Added a new config `allow-mixed-uninlined-format-args` to allow the
+  lint, if only some arguments can be inlined
+  [#9865](https://github.com/rust-lang/rust-clippy/pull/9865)
+* [`needless_lifetimes`]: Now provides suggests for individual lifetimes
+  [#9743](https://github.com/rust-lang/rust-clippy/pull/9743)
+* [`needless_collect`]: Now detects needless `is_empty` and `contains` calls
+  [#8744](https://github.com/rust-lang/rust-clippy/pull/8744)
+* [`blanket_clippy_restriction_lints`]: Now lints, if `clippy::restriction` is enabled via the
+  command line arguments
+  [#9755](https://github.com/rust-lang/rust-clippy/pull/9755)
+* [`mutable_key_type`]: Now has the `ignore-interior-mutability` configuration, to add types which
+  should be ignored by the lint
+  [#9692](https://github.com/rust-lang/rust-clippy/pull/9692)
+* [`uninlined_format_args`]: Now works for multiline `format!` expressions
+  [#9945](https://github.com/rust-lang/rust-clippy/pull/9945)
+* [`cognitive_complexity`]: Now works for async functions
+  [#9828](https://github.com/rust-lang/rust-clippy/pull/9828)
+  [#9836](https://github.com/rust-lang/rust-clippy/pull/9836)
+* [`vec_box`]: Now avoids an off-by-one error when using the `vec-box-size-threshold` configuration
+  [#9848](https://github.com/rust-lang/rust-clippy/pull/9848)
+* [`never_loop`]: Now correctly handles breaks in nested labeled blocks
+  [#9858](https://github.com/rust-lang/rust-clippy/pull/9858)
+  [#9837](https://github.com/rust-lang/rust-clippy/pull/9837)
+* [`disallowed_methods`], [`disallowed_types`], [`disallowed_macros`]: Now correctly resolve
+  paths, if a crate is used multiple times with different versions
+  [#9800](https://github.com/rust-lang/rust-clippy/pull/9800)
+* [`disallowed_methods`]: Can now be used for local methods
+  [#9800](https://github.com/rust-lang/rust-clippy/pull/9800)
+* [`print_stdout`], [`print_stderr`]: Can now be enabled in test with the `allow-print-in-tests`
+  config value
+  [#9797](https://github.com/rust-lang/rust-clippy/pull/9797)
+* [`from_raw_with_void_ptr`]: Now works for `Rc`, `Arc`, `alloc::rc::Weak` and
+  `alloc::sync::Weak` types.
+  [#9700](https://github.com/rust-lang/rust-clippy/pull/9700)
+* [`needless_borrowed_reference`]: Now works for struct and tuple patterns with wildcards
+  [#9855](https://github.com/rust-lang/rust-clippy/pull/9855)
+* [`or_fun_call`]: Now supports `map_or` methods
+  [#9689](https://github.com/rust-lang/rust-clippy/pull/9689)
+* [`unwrap_used`], [`expect_used`]: No longer lints in test code
+  [#9686](https://github.com/rust-lang/rust-clippy/pull/9686)
+* [`fn_params_excessive_bools`]: Is now emitted with the lint level at the linted function
+  [#9698](https://github.com/rust-lang/rust-clippy/pull/9698)
+
+### False Positive Fixes
+
+* [`new_ret_no_self`]: No longer lints when `impl Trait<Self>` is returned
+  [#9733](https://github.com/rust-lang/rust-clippy/pull/9733)
+* [`unnecessary_lazy_evaluations`]: No longer lints, if the type has a significant drop
+  [#9750](https://github.com/rust-lang/rust-clippy/pull/9750)
+* [`option_if_let_else`]: No longer lints, if any arm has guard
+  [#9747](https://github.com/rust-lang/rust-clippy/pull/9747)
+* [`explicit_auto_deref`]: No longer lints, if the target type is a projection with generic
+  arguments
+  [#9813](https://github.com/rust-lang/rust-clippy/pull/9813)
+* [`unnecessary_to_owned`]: No longer lints, if the suggestion effects types
+  [#9796](https://github.com/rust-lang/rust-clippy/pull/9796)
+* [`needless_borrow`]: No longer lints, if the suggestion is affected by `Deref`
+  [#9674](https://github.com/rust-lang/rust-clippy/pull/9674)
+* [`unused_unit`]: No longer lints, if lifetimes are bound to the return type
+  [#9849](https://github.com/rust-lang/rust-clippy/pull/9849)
+* [`mut_mut`]: No longer lints cases with unsized mutable references
+  [#9835](https://github.com/rust-lang/rust-clippy/pull/9835)
+* [`bool_to_int_with_if`]: No longer lints in const context
+  [#9738](https://github.com/rust-lang/rust-clippy/pull/9738)
+* [`use_self`]: No longer lints in macros
+  [#9704](https://github.com/rust-lang/rust-clippy/pull/9704)
+* [`unnecessary_operation`]: No longer lints, if multiple macros are involved
+  [#9981](https://github.com/rust-lang/rust-clippy/pull/9981)
+* [`allow_attributes_without_reason`]: No longer lints inside external macros
+  [#9630](https://github.com/rust-lang/rust-clippy/pull/9630)
+* [`question_mark`]: No longer lints for `if let Err()` with an `else` branch
+  [#9722](https://github.com/rust-lang/rust-clippy/pull/9722)
+* [`unnecessary_cast`]: No longer lints if the identifier and cast originate from different macros
+  [#9980](https://github.com/rust-lang/rust-clippy/pull/9980)
+* [`arithmetic_side_effects`]: Now detects operations with associated constants
+  [#9592](https://github.com/rust-lang/rust-clippy/pull/9592)
+* [`explicit_auto_deref`]: No longer lints, if the initial value is not a reference or reference
+  receiver
+  [#9997](https://github.com/rust-lang/rust-clippy/pull/9997)
+* [`module_name_repetitions`], [`single_component_path_imports`]: Now handle `#[allow]`
+  attributes correctly
+  [#9879](https://github.com/rust-lang/rust-clippy/pull/9879)
+* [`bool_to_int_with_if`]: No longer lints `if let` statements
+  [#9714](https://github.com/rust-lang/rust-clippy/pull/9714)
+* [`needless_borrow`]: No longer lints, `if`-`else`-statements that require the borrow
+  [#9791](https://github.com/rust-lang/rust-clippy/pull/9791)
+* [`needless_borrow`]: No longer lints borrows, if moves were illegal
+  [#9711](https://github.com/rust-lang/rust-clippy/pull/9711)
+* [`manual_swap`]: No longer lints in const context
+  [#9871](https://github.com/rust-lang/rust-clippy/pull/9871)
+
+### Suggestion Fixes/Improvements
+
+* [`missing_safety_doc`], [`missing_errors_doc`], [`missing_panics_doc`]: No longer show the
+  entire item in the lint emission.
+  [#9772](https://github.com/rust-lang/rust-clippy/pull/9772)
+* [`needless_lifetimes`]: Only suggests `'_` when it's applicable
+  [#9743](https://github.com/rust-lang/rust-clippy/pull/9743)
+* [`use_self`]: Now suggests full paths correctly
+  [#9726](https://github.com/rust-lang/rust-clippy/pull/9726)
+* [`redundant_closure_call`]: Now correctly deals with macros during suggestion creation
+  [#9987](https://github.com/rust-lang/rust-clippy/pull/9987)
+* [`unnecessary_cast`]: Suggestions now correctly deal with references
+  [#9996](https://github.com/rust-lang/rust-clippy/pull/9996)
+* [`unnecessary_join`]: Suggestions now correctly use [turbofish] operators
+  [#9779](https://github.com/rust-lang/rust-clippy/pull/9779)
+* [`equatable_if_let`]: Can now suggest `matches!` replacements
+  [#9368](https://github.com/rust-lang/rust-clippy/pull/9368)
+* [`string_extend_chars`]: Suggestions now correctly work for `str` slices
+  [#9741](https://github.com/rust-lang/rust-clippy/pull/9741)
+* [`redundant_closure_for_method_calls`]: Suggestions now include angle brackets and generic
+  arguments if needed
+  [#9745](https://github.com/rust-lang/rust-clippy/pull/9745)
+* [`manual_let_else`]: Suggestions no longer expand macro calls
+  [#9943](https://github.com/rust-lang/rust-clippy/pull/9943)
+* [`infallible_destructuring_match`]: Suggestions now preserve references
+  [#9850](https://github.com/rust-lang/rust-clippy/pull/9850)
+* [`result_large_err`]: The error now shows the largest enum variant
+  [#9662](https://github.com/rust-lang/rust-clippy/pull/9662)
+* [`needless_return`]: Suggestions are now formatted better
+  [#9967](https://github.com/rust-lang/rust-clippy/pull/9967)
+* [`unused_rounding`]: The suggestion now preserves the original float literal notation
+  [#9870](https://github.com/rust-lang/rust-clippy/pull/9870)
+
+[turbofish]: https://turbo.fish/::%3CClippy%3E
+
+### ICE Fixes
+
+* [`result_large_err`]: Fixed ICE for empty enums
+  [#10007](https://github.com/rust-lang/rust-clippy/pull/10007)
+* [`redundant_allocation`]: Fixed ICE for types with bounded variables
+  [#9773](https://github.com/rust-lang/rust-clippy/pull/9773)
+* [`unused_rounding`]: Fixed ICE, if `_` was used as a separator
+  [#10001](https://github.com/rust-lang/rust-clippy/pull/10001)
 
 ## Rust 1.66
 
-Current stable, released 2022-12-15
+Released 2022-12-15
 
 [b52fb523...4f142aa1](https://github.com/rust-lang/rust-clippy/compare/b52fb523...4f142aa1)
 
@@ -166,6 +359,7 @@ Current stable, released 2022-12-15
 
 * [`unnecessary_to_owned`]: Avoid ICEs in favor of false negatives if information is missing
   [#9505](https://github.com/rust-lang/rust-clippy/pull/9505)
+  [#10027](https://github.com/rust-lang/rust-clippy/pull/10027)
 * [`manual_range_contains`]: No longer ICEs on values behind references
   [#9627](https://github.com/rust-lang/rust-clippy/pull/9627)
 * [`needless_pass_by_value`]: No longer ICEs on unsized `dyn Fn` arguments
@@ -4383,6 +4577,7 @@ Released 2018-09-13
 [`multi_assignments`]: https://rust-lang.github.io/rust-clippy/master/index.html#multi_assignments
 [`multiple_crate_versions`]: https://rust-lang.github.io/rust-clippy/master/index.html#multiple_crate_versions
 [`multiple_inherent_impl`]: https://rust-lang.github.io/rust-clippy/master/index.html#multiple_inherent_impl
+[`multiple_unsafe_ops_per_block`]: https://rust-lang.github.io/rust-clippy/master/index.html#multiple_unsafe_ops_per_block
 [`must_use_candidate`]: https://rust-lang.github.io/rust-clippy/master/index.html#must_use_candidate
 [`must_use_unit`]: https://rust-lang.github.io/rust-clippy/master/index.html#must_use_unit
 [`mut_from_ref`]: https://rust-lang.github.io/rust-clippy/master/index.html#mut_from_ref

src/tools/clippy/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy"
-version = "0.1.68"
+version = "0.1.69"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"

src/tools/clippy/README.md

@@ -194,11 +194,21 @@ value` mapping e.g.
 ```toml
 avoid-breaking-exported-api = false
 disallowed-names = ["toto", "tata", "titi"]
-cognitive-complexity-threshold = 30
 ```
 
-See the [list of configurable lints](https://rust-lang.github.io/rust-clippy/master/index.html#Configuration),
+The [table of configurations](https://doc.rust-lang.org/nightly/clippy/lint_configuration.html)
-the lint descriptions contain the names and meanings of these configuration variables.
+contains all config values, their default, and a list of lints they affect.
+Each [configurable lint](https://rust-lang.github.io/rust-clippy/master/index.html#Configuration)
+, also contains information about these values.
+
+For configurations that are a list type with default values such as
+[disallowed-names](https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_names),
+you can use the unique value `".."` to extend the default values instead of replacing them.
+
+```toml
+# default of disallowed-names is ["foo", "baz", "quux"]
+disallowed-names = ["bar", ".."] # -> ["bar", "foo", "baz", "quux"]
+```
 
 > **Note**
 >

src/tools/clippy/book/src/SUMMARY.md

@@ -5,6 +5,7 @@
 - [Installation](installation.md)
 - [Usage](usage.md)
 - [Configuration](configuration.md)
+    - [Lint Configuration](lint_configuration.md)
 - [Clippy's Lints](lints.md)
 - [Continuous Integration](continuous_integration/README.md)
     - [GitHub Actions](continuous_integration/github_actions.md)

src/tools/clippy/book/src/configuration.md

@@ -8,11 +8,21 @@ basic `variable = value` mapping eg.
 ```toml
 avoid-breaking-exported-api = false
 disallowed-names = ["toto", "tata", "titi"]
-cognitive-complexity-threshold = 30
 ```
 
-See the [list of configurable lints](https://rust-lang.github.io/rust-clippy/master/index.html#Configuration),
+The [table of configurations](./lint_configuration.md)
-the lint descriptions contain the names and meanings of these configuration variables.
+contains all config values, their default, and a list of lints they affect.
+Each [configurable lint](https://rust-lang.github.io/rust-clippy/master/index.html#Configuration)
+, also contains information about these values.
+
+For configurations that are a list type with default values such as
+[disallowed-names](https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_names),
+you can use the unique value `".."` to extend the default values instead of replacing them.
+
+```toml
+# default of disallowed-names is ["foo", "baz", "quux"]
+disallowed-names = ["bar", ".."] # -> ["bar", "foo", "baz", "quux"]
+```
 
 To deactivate the "for further information visit *lint-link*" message you can define the `CLIPPY_DISABLE_DOCS_LINKS`
 environment variable.

src/tools/clippy/book/src/development/adding_lints.md

@@ -146,7 +146,8 @@ For cargo lints, the process of testing differs in that we are interested in the
 manifest.
 
 If our new lint is named e.g. `foo_categories`, after running `cargo dev
-new_lint` we will find by default two new crates, each with its manifest file:
+new_lint --name=foo_categories --type=cargo --category=cargo` we will find by
+default two new crates, each with its manifest file:
 
 * `tests/ui-cargo/foo_categories/fail/Cargo.toml`: this file should cause the
   new lint to raise an error.
@@ -699,6 +700,10 @@ for some users. Adding a configuration is done in the following steps:
        `clippy.toml` file with the configuration value and a rust file that
        should be linted by Clippy. The test can otherwise be written as usual.
 
+5. Update [Lint Configuration](../lint_configuration.md)
+
+   Run `cargo collect-metadata` to generate documentation changes for the book.
+
 [`clippy_lints::utils::conf`]: https://github.com/rust-lang/rust-clippy/blob/master/clippy_lints/src/utils/conf.rs
 [`clippy_lints` lib file]: https://github.com/rust-lang/rust-clippy/blob/master/clippy_lints/src/lib.rs
 [`tests/ui`]: https://github.com/rust-lang/rust-clippy/blob/master/tests/ui

src/tools/clippy/book/src/development/infrastructure/book.md

@@ -3,15 +3,15 @@
 This document explains how to make additions and changes to the Clippy book, the
 guide to Clippy that you're reading right now. The Clippy book is formatted with
 [Markdown](https://www.markdownguide.org) and generated by
-[mdbook](https://github.com/rust-lang/mdBook).
+[mdBook](https://github.com/rust-lang/mdBook).
 
-- [Get mdbook](#get-mdbook)
+- [Get mdBook](#get-mdbook)
 - [Make changes](#make-changes)
 
-## Get mdbook
+## Get mdBook
 
 While not strictly necessary since the book source is simply Markdown text
-files, having mdbook locally will allow you to build, test and serve the book
+files, having mdBook locally will allow you to build, test and serve the book
 locally to view changes before you commit them to the repository. You likely
 already have `cargo` installed, so the easiest option is to simply:
 
@@ -19,7 +19,7 @@ already have `cargo` installed, so the easiest option is to simply:
 cargo install mdbook
 ```
 
-See the mdbook [installation](https://github.com/rust-lang/mdBook#installation)
+See the mdBook [installation](https://github.com/rust-lang/mdBook#installation)
 instructions for other options.
 
 ## Make changes
@@ -27,7 +27,7 @@ instructions for other options.
 The book's
 [src](https://github.com/rust-lang/rust-clippy/tree/master/book/src)
 directory contains all of the markdown files used to generate the book. If you
-want to see your changes in real time, you can use the mdbook `serve` command to
+want to see your changes in real time, you can use the mdBook `serve` command to
 run a web server locally that will automatically update changes as they are
 made. From the top level of your `rust-clippy` directory:
 
@@ -38,5 +38,5 @@ mdbook serve book --open
 Then navigate to `http://localhost:3000` to see the generated book. While the
 server is running, changes you make will automatically be updated.
 
-For more information, see the mdbook
+For more information, see the mdBook
 [guide](https://rust-lang.github.io/mdBook/).

src/tools/clippy/book/src/development/infrastructure/changelog_update.md

@@ -95,11 +95,23 @@ As section headers, we use:
 Please also be sure to update the Beta/Unreleased sections at the top with the
 relevant commit ranges.
 
-If you have the time, it would be appreciated if you double-check, that the
+#### 3.1 Include `beta-accepted` PRs
-`#[clippy::version]` attributes for the added lints contains the correct version.
+
+Look for the [`beta-accepted`] label and make sure to also include the PRs with
+that label in the changelog. If you can, remove the `beta-accepted` labels
+**after** the changelog PR was merged.
+
+> _Note:_ Some of those PRs might even got backported to the previous `beta`.
+> Those have to be included in the changelog of the _previous_ release.
+
+### 4. Update `clippy::version` attributes
+
+Next, make sure to check that the `#[clippy::version]` attributes for the added
+lints contain the correct version.
 
 [changelog]: https://github.com/rust-lang/rust-clippy/blob/master/CHANGELOG.md
 [forge]: https://forge.rust-lang.org/
 [rust_master_tools]: https://github.com/rust-lang/rust/tree/master/src/tools/clippy
 [rust_beta_tools]: https://github.com/rust-lang/rust/tree/beta/src/tools/clippy
 [rust_stable_tools]: https://github.com/rust-lang/rust/releases
+[`beta-accepted`]: https://github.com/rust-lang/rust-clippy/issues?q=label%3Abeta-accepted+

src/tools/clippy/book/src/lint_configuration.md

@@ -0,0 +1,523 @@
+<!--
+This file is generated by `cargo collect-metadata`.
+Please use that command to update the file and do not edit it by hand.
+-->
+
+## Lint Configuration Options
+| <div style="width:290px">Option</div> | Default Value |
+|--|--|
+| [arithmetic-side-effects-allowed](#arithmetic-side-effects-allowed) | `{}` |
+| [arithmetic-side-effects-allowed-binary](#arithmetic-side-effects-allowed-binary) | `[]` |
+| [arithmetic-side-effects-allowed-unary](#arithmetic-side-effects-allowed-unary) | `{}` |
+| [avoid-breaking-exported-api](#avoid-breaking-exported-api) | `true` |
+| [msrv](#msrv) | `None` |
+| [cognitive-complexity-threshold](#cognitive-complexity-threshold) | `25` |
+| [disallowed-names](#disallowed-names) | `["foo", "baz", "quux"]` |
+| [doc-valid-idents](#doc-valid-idents) | `["KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "DirectX", "ECMAScript", "GPLv2", "GPLv3", "GitHub", "GitLab", "IPv4", "IPv6", "ClojureScript", "CoffeeScript", "JavaScript", "PureScript", "TypeScript", "NaN", "NaNs", "OAuth", "GraphQL", "OCaml", "OpenGL", "OpenMP", "OpenSSH", "OpenSSL", "OpenStreetMap", "OpenDNS", "WebGL", "TensorFlow", "TrueType", "iOS", "macOS", "FreeBSD", "TeX", "LaTeX", "BibTeX", "BibLaTeX", "MinGW", "CamelCase"]` |
+| [too-many-arguments-threshold](#too-many-arguments-threshold) | `7` |
+| [type-complexity-threshold](#type-complexity-threshold) | `250` |
+| [single-char-binding-names-threshold](#single-char-binding-names-threshold) | `4` |
+| [too-large-for-stack](#too-large-for-stack) | `200` |
+| [enum-variant-name-threshold](#enum-variant-name-threshold) | `3` |
+| [enum-variant-size-threshold](#enum-variant-size-threshold) | `200` |
+| [verbose-bit-mask-threshold](#verbose-bit-mask-threshold) | `1` |
+| [literal-representation-threshold](#literal-representation-threshold) | `16384` |
+| [trivial-copy-size-limit](#trivial-copy-size-limit) | `None` |
+| [pass-by-value-size-limit](#pass-by-value-size-limit) | `256` |
+| [too-many-lines-threshold](#too-many-lines-threshold) | `100` |
+| [array-size-threshold](#array-size-threshold) | `512000` |
+| [vec-box-size-threshold](#vec-box-size-threshold) | `4096` |
+| [max-trait-bounds](#max-trait-bounds) | `3` |
+| [max-struct-bools](#max-struct-bools) | `3` |
+| [max-fn-params-bools](#max-fn-params-bools) | `3` |
+| [warn-on-all-wildcard-imports](#warn-on-all-wildcard-imports) | `false` |
+| [disallowed-macros](#disallowed-macros) | `[]` |
+| [disallowed-methods](#disallowed-methods) | `[]` |
+| [disallowed-types](#disallowed-types) | `[]` |
+| [unreadable-literal-lint-fractions](#unreadable-literal-lint-fractions) | `true` |
+| [upper-case-acronyms-aggressive](#upper-case-acronyms-aggressive) | `false` |
+| [matches-for-let-else](#matches-for-let-else) | `WellKnownTypes` |
+| [cargo-ignore-publish](#cargo-ignore-publish) | `false` |
+| [standard-macro-braces](#standard-macro-braces) | `[]` |
+| [enforced-import-renames](#enforced-import-renames) | `[]` |
+| [allowed-scripts](#allowed-scripts) | `["Latin"]` |
+| [enable-raw-pointer-heuristic-for-send](#enable-raw-pointer-heuristic-for-send) | `true` |
+| [max-suggested-slice-pattern-length](#max-suggested-slice-pattern-length) | `3` |
+| [max-include-file-size](#max-include-file-size) | `1000000` |
+| [allow-expect-in-tests](#allow-expect-in-tests) | `false` |
+| [allow-unwrap-in-tests](#allow-unwrap-in-tests) | `false` |
+| [allow-dbg-in-tests](#allow-dbg-in-tests) | `false` |
+| [allow-print-in-tests](#allow-print-in-tests) | `false` |
+| [large-error-threshold](#large-error-threshold) | `128` |
+| [ignore-interior-mutability](#ignore-interior-mutability) | `["bytes::Bytes"]` |
+| [allow-mixed-uninlined-format-args](#allow-mixed-uninlined-format-args) | `true` |
+| [suppress-restriction-lint-in-const](#suppress-restriction-lint-in-const) | `false` |
+
+### arithmetic-side-effects-allowed
+Suppress checking of the passed type names in all types of operations.
+
+If a specific operation is desired, consider using `arithmetic_side_effects_allowed_binary` or `arithmetic_side_effects_allowed_unary` instead.
+
+#### Example
+
+```toml
+arithmetic-side-effects-allowed = ["SomeType", "AnotherType"]
+```
+
+#### Noteworthy
+
+A type, say `SomeType`, listed in this configuration has the same behavior of
+`["SomeType" , "*"], ["*", "SomeType"]` in `arithmetic_side_effects_allowed_binary`.
+
+**Default Value:** `{}` (`rustc_data_structures::fx::FxHashSet<String>`)
+
+* [arithmetic_side_effects](https://rust-lang.github.io/rust-clippy/master/index.html#arithmetic_side_effects)
+
+
+### arithmetic-side-effects-allowed-binary
+Suppress checking of the passed type pair names in binary operations like addition or
+multiplication.
+
+Supports the "*" wildcard to indicate that a certain type won't trigger the lint regardless
+of the involved counterpart. For example, `["SomeType", "*"]` or `["*", "AnotherType"]`.
+
+Pairs are asymmetric, which means that `["SomeType", "AnotherType"]` is not the same as
+`["AnotherType", "SomeType"]`.
+
+#### Example
+
+```toml
+arithmetic-side-effects-allowed-binary = [["SomeType" , "f32"], ["AnotherType", "*"]]
+```
+
+**Default Value:** `[]` (`Vec<[String; 2]>`)
+
+* [arithmetic_side_effects](https://rust-lang.github.io/rust-clippy/master/index.html#arithmetic_side_effects)
+
+
+### arithmetic-side-effects-allowed-unary
+Suppress checking of the passed type names in unary operations like "negation" (`-`).
+
+#### Example
+
+```toml
+arithmetic-side-effects-allowed-unary = ["SomeType", "AnotherType"]
+```
+
+**Default Value:** `{}` (`rustc_data_structures::fx::FxHashSet<String>`)
+
+* [arithmetic_side_effects](https://rust-lang.github.io/rust-clippy/master/index.html#arithmetic_side_effects)
+
+
+### avoid-breaking-exported-api
+Suppress lints whenever the suggested change would cause breakage for other crates.
+
+**Default Value:** `true` (`bool`)
+
+* [enum_variant_names](https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names)
+* [large_types_passed_by_value](https://rust-lang.github.io/rust-clippy/master/index.html#large_types_passed_by_value)
+* [trivially_copy_pass_by_ref](https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref)
+* [unnecessary_wraps](https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_wraps)
+* [unused_self](https://rust-lang.github.io/rust-clippy/master/index.html#unused_self)
+* [upper_case_acronyms](https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms)
+* [wrong_self_convention](https://rust-lang.github.io/rust-clippy/master/index.html#wrong_self_convention)
+* [box_collection](https://rust-lang.github.io/rust-clippy/master/index.html#box_collection)
+* [redundant_allocation](https://rust-lang.github.io/rust-clippy/master/index.html#redundant_allocation)
+* [rc_buffer](https://rust-lang.github.io/rust-clippy/master/index.html#rc_buffer)
+* [vec_box](https://rust-lang.github.io/rust-clippy/master/index.html#vec_box)
+* [option_option](https://rust-lang.github.io/rust-clippy/master/index.html#option_option)
+* [linkedlist](https://rust-lang.github.io/rust-clippy/master/index.html#linkedlist)
+* [rc_mutex](https://rust-lang.github.io/rust-clippy/master/index.html#rc_mutex)
+
+
+### msrv
+The minimum rust version that the project supports
+
+**Default Value:** `None` (`Option<String>`)
+
+* [manual_split_once](https://rust-lang.github.io/rust-clippy/master/index.html#manual_split_once)
+* [manual_str_repeat](https://rust-lang.github.io/rust-clippy/master/index.html#manual_str_repeat)
+* [cloned_instead_of_copied](https://rust-lang.github.io/rust-clippy/master/index.html#cloned_instead_of_copied)
+* [redundant_field_names](https://rust-lang.github.io/rust-clippy/master/index.html#redundant_field_names)
+* [redundant_static_lifetimes](https://rust-lang.github.io/rust-clippy/master/index.html#redundant_static_lifetimes)
+* [filter_map_next](https://rust-lang.github.io/rust-clippy/master/index.html#filter_map_next)
+* [checked_conversions](https://rust-lang.github.io/rust-clippy/master/index.html#checked_conversions)
+* [manual_range_contains](https://rust-lang.github.io/rust-clippy/master/index.html#manual_range_contains)
+* [use_self](https://rust-lang.github.io/rust-clippy/master/index.html#use_self)
+* [mem_replace_with_default](https://rust-lang.github.io/rust-clippy/master/index.html#mem_replace_with_default)
+* [manual_non_exhaustive](https://rust-lang.github.io/rust-clippy/master/index.html#manual_non_exhaustive)
+* [option_as_ref_deref](https://rust-lang.github.io/rust-clippy/master/index.html#option_as_ref_deref)
+* [map_unwrap_or](https://rust-lang.github.io/rust-clippy/master/index.html#map_unwrap_or)
+* [match_like_matches_macro](https://rust-lang.github.io/rust-clippy/master/index.html#match_like_matches_macro)
+* [manual_strip](https://rust-lang.github.io/rust-clippy/master/index.html#manual_strip)
+* [missing_const_for_fn](https://rust-lang.github.io/rust-clippy/master/index.html#missing_const_for_fn)
+* [unnested_or_patterns](https://rust-lang.github.io/rust-clippy/master/index.html#unnested_or_patterns)
+* [from_over_into](https://rust-lang.github.io/rust-clippy/master/index.html#from_over_into)
+* [ptr_as_ptr](https://rust-lang.github.io/rust-clippy/master/index.html#ptr_as_ptr)
+* [if_then_some_else_none](https://rust-lang.github.io/rust-clippy/master/index.html#if_then_some_else_none)
+* [approx_constant](https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant)
+* [deprecated_cfg_attr](https://rust-lang.github.io/rust-clippy/master/index.html#deprecated_cfg_attr)
+* [index_refutable_slice](https://rust-lang.github.io/rust-clippy/master/index.html#index_refutable_slice)
+* [map_clone](https://rust-lang.github.io/rust-clippy/master/index.html#map_clone)
+* [borrow_as_ptr](https://rust-lang.github.io/rust-clippy/master/index.html#borrow_as_ptr)
+* [manual_bits](https://rust-lang.github.io/rust-clippy/master/index.html#manual_bits)
+* [err_expect](https://rust-lang.github.io/rust-clippy/master/index.html#err_expect)
+* [cast_abs_to_unsigned](https://rust-lang.github.io/rust-clippy/master/index.html#cast_abs_to_unsigned)
+* [uninlined_format_args](https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args)
+* [manual_clamp](https://rust-lang.github.io/rust-clippy/master/index.html#manual_clamp)
+* [manual_let_else](https://rust-lang.github.io/rust-clippy/master/index.html#manual_let_else)
+* [unchecked_duration_subtraction](https://rust-lang.github.io/rust-clippy/master/index.html#unchecked_duration_subtraction)
+
+
+### cognitive-complexity-threshold
+The maximum cognitive complexity a function can have
+
+**Default Value:** `25` (`u64`)
+
+* [cognitive_complexity](https://rust-lang.github.io/rust-clippy/master/index.html#cognitive_complexity)
+
+
+### disallowed-names
+The list of disallowed names to lint about. NB: `bar` is not here since it has legitimate uses. The value
+`".."` can be used as part of the list to indicate, that the configured values should be appended to the
+default configuration of Clippy. By default any configuration will replace the default value.
+
+**Default Value:** `["foo", "baz", "quux"]` (`Vec<String>`)
+
+* [disallowed_names](https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_names)
+
+
+### doc-valid-idents
+The list of words this lint should not consider as identifiers needing ticks. The value
+`".."` can be used as part of the list to indicate, that the configured values should be appended to the
+default configuration of Clippy. By default any configuraction will replace the default value. For example:
+* `doc-valid-idents = ["ClipPy"]` would replace the default list with `["ClipPy"]`.
+* `doc-valid-idents = ["ClipPy", ".."]` would append `ClipPy` to the default list.
+
+Default list:
+
+**Default Value:** `["KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "DirectX", "ECMAScript", "GPLv2", "GPLv3", "GitHub", "GitLab", "IPv4", "IPv6", "ClojureScript", "CoffeeScript", "JavaScript", "PureScript", "TypeScript", "NaN", "NaNs", "OAuth", "GraphQL", "OCaml", "OpenGL", "OpenMP", "OpenSSH", "OpenSSL", "OpenStreetMap", "OpenDNS", "WebGL", "TensorFlow", "TrueType", "iOS", "macOS", "FreeBSD", "TeX", "LaTeX", "BibTeX", "BibLaTeX", "MinGW", "CamelCase"]` (`Vec<String>`)
+
+* [doc_markdown](https://rust-lang.github.io/rust-clippy/master/index.html#doc_markdown)
+
+
+### too-many-arguments-threshold
+The maximum number of argument a function or method can have
+
+**Default Value:** `7` (`u64`)
+
+* [too_many_arguments](https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments)
+
+
+### type-complexity-threshold
+The maximum complexity a type can have
+
+**Default Value:** `250` (`u64`)
+
+* [type_complexity](https://rust-lang.github.io/rust-clippy/master/index.html#type_complexity)
+
+
+### single-char-binding-names-threshold
+The maximum number of single char bindings a scope may have
+
+**Default Value:** `4` (`u64`)
+
+* [many_single_char_names](https://rust-lang.github.io/rust-clippy/master/index.html#many_single_char_names)
+
+
+### too-large-for-stack
+The maximum size of objects (in bytes) that will be linted. Larger objects are ok on the heap
+
+**Default Value:** `200` (`u64`)
+
+* [boxed_local](https://rust-lang.github.io/rust-clippy/master/index.html#boxed_local)
+* [useless_vec](https://rust-lang.github.io/rust-clippy/master/index.html#useless_vec)
+
+
+### enum-variant-name-threshold
+The minimum number of enum variants for the lints about variant names to trigger
+
+**Default Value:** `3` (`u64`)
+
+* [enum_variant_names](https://rust-lang.github.io/rust-clippy/master/index.html#enum_variant_names)
+
+
+### enum-variant-size-threshold
+The maximum size of an enum's variant to avoid box suggestion
+
+**Default Value:** `200` (`u64`)
+
+* [large_enum_variant](https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant)
+
+
+### verbose-bit-mask-threshold
+The maximum allowed size of a bit mask before suggesting to use 'trailing_zeros'
+
+**Default Value:** `1` (`u64`)
+
+* [verbose_bit_mask](https://rust-lang.github.io/rust-clippy/master/index.html#verbose_bit_mask)
+
+
+### literal-representation-threshold
+The lower bound for linting decimal literals
+
+**Default Value:** `16384` (`u64`)
+
+* [decimal_literal_representation](https://rust-lang.github.io/rust-clippy/master/index.html#decimal_literal_representation)
+
+
+### trivial-copy-size-limit
+The maximum size (in bytes) to consider a `Copy` type for passing by value instead of by reference.
+
+**Default Value:** `None` (`Option<u64>`)
+
+* [trivially_copy_pass_by_ref](https://rust-lang.github.io/rust-clippy/master/index.html#trivially_copy_pass_by_ref)
+
+
+### pass-by-value-size-limit
+The minimum size (in bytes) to consider a type for passing by reference instead of by value.
+
+**Default Value:** `256` (`u64`)
+
+* [large_type_pass_by_move](https://rust-lang.github.io/rust-clippy/master/index.html#large_type_pass_by_move)
+
+
+### too-many-lines-threshold
+The maximum number of lines a function or method can have
+
+**Default Value:** `100` (`u64`)
+
+* [too_many_lines](https://rust-lang.github.io/rust-clippy/master/index.html#too_many_lines)
+
+
+### array-size-threshold
+The maximum allowed size for arrays on the stack
+
+**Default Value:** `512000` (`u128`)
+
+* [large_stack_arrays](https://rust-lang.github.io/rust-clippy/master/index.html#large_stack_arrays)
+* [large_const_arrays](https://rust-lang.github.io/rust-clippy/master/index.html#large_const_arrays)
+
+
+### vec-box-size-threshold
+The size of the boxed type in bytes, where boxing in a `Vec` is allowed
+
+**Default Value:** `4096` (`u64`)
+
+* [vec_box](https://rust-lang.github.io/rust-clippy/master/index.html#vec_box)
+
+
+### max-trait-bounds
+The maximum number of bounds a trait can have to be linted
+
+**Default Value:** `3` (`u64`)
+
+* [type_repetition_in_bounds](https://rust-lang.github.io/rust-clippy/master/index.html#type_repetition_in_bounds)
+
+
+### max-struct-bools
+The maximum number of bool fields a struct can have
+
+**Default Value:** `3` (`u64`)
+
+* [struct_excessive_bools](https://rust-lang.github.io/rust-clippy/master/index.html#struct_excessive_bools)
+
+
+### max-fn-params-bools
+The maximum number of bool parameters a function can have
+
+**Default Value:** `3` (`u64`)
+
+* [fn_params_excessive_bools](https://rust-lang.github.io/rust-clippy/master/index.html#fn_params_excessive_bools)
+
+
+### warn-on-all-wildcard-imports
+Whether to allow certain wildcard imports (prelude, super in tests).
+
+**Default Value:** `false` (`bool`)
+
+* [wildcard_imports](https://rust-lang.github.io/rust-clippy/master/index.html#wildcard_imports)
+
+
+### disallowed-macros
+The list of disallowed macros, written as fully qualified paths.
+
+**Default Value:** `[]` (`Vec<crate::utils::conf::DisallowedPath>`)
+
+* [disallowed_macros](https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_macros)
+
+
+### disallowed-methods
+The list of disallowed methods, written as fully qualified paths.
+
+**Default Value:** `[]` (`Vec<crate::utils::conf::DisallowedPath>`)
+
+* [disallowed_methods](https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_methods)
+
+
+### disallowed-types
+The list of disallowed types, written as fully qualified paths.
+
+**Default Value:** `[]` (`Vec<crate::utils::conf::DisallowedPath>`)
+
+* [disallowed_types](https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_types)
+
+
+### unreadable-literal-lint-fractions
+Should the fraction of a decimal be linted to include separators.
+
+**Default Value:** `true` (`bool`)
+
+* [unreadable_literal](https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal)
+
+
+### upper-case-acronyms-aggressive
+Enables verbose mode. Triggers if there is more than one uppercase char next to each other
+
+**Default Value:** `false` (`bool`)
+
+* [upper_case_acronyms](https://rust-lang.github.io/rust-clippy/master/index.html#upper_case_acronyms)
+
+
+### matches-for-let-else
+Whether the matches should be considered by the lint, and whether there should
+be filtering for common types.
+
+**Default Value:** `WellKnownTypes` (`crate::manual_let_else::MatchLintBehaviour`)
+
+* [manual_let_else](https://rust-lang.github.io/rust-clippy/master/index.html#manual_let_else)
+
+
+### cargo-ignore-publish
+For internal testing only, ignores the current `publish` settings in the Cargo manifest.
+
+**Default Value:** `false` (`bool`)
+
+* [_cargo_common_metadata](https://rust-lang.github.io/rust-clippy/master/index.html#_cargo_common_metadata)
+
+
+### standard-macro-braces
+Enforce the named macros always use the braces specified.
+
+A `MacroMatcher` can be added like so `{ name = "macro_name", brace = "(" }`. If the macro
+is could be used with a full path two `MacroMatcher`s have to be added one with the full path
+`crate_name::macro_name` and one with just the macro name.
+
+**Default Value:** `[]` (`Vec<crate::nonstandard_macro_braces::MacroMatcher>`)
+
+* [nonstandard_macro_braces](https://rust-lang.github.io/rust-clippy/master/index.html#nonstandard_macro_braces)
+
+
+### enforced-import-renames
+The list of imports to always rename, a fully qualified path followed by the rename.
+
+**Default Value:** `[]` (`Vec<crate::utils::conf::Rename>`)
+
+* [missing_enforced_import_renames](https://rust-lang.github.io/rust-clippy/master/index.html#missing_enforced_import_renames)
+
+
+### allowed-scripts
+The list of unicode scripts allowed to be used in the scope.
+
+**Default Value:** `["Latin"]` (`Vec<String>`)
+
+* [disallowed_script_idents](https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_script_idents)
+
+
+### enable-raw-pointer-heuristic-for-send
+Whether to apply the raw pointer heuristic to determine if a type is `Send`.
+
+**Default Value:** `true` (`bool`)
+
+* [non_send_fields_in_send_ty](https://rust-lang.github.io/rust-clippy/master/index.html#non_send_fields_in_send_ty)
+
+
+### max-suggested-slice-pattern-length
+When Clippy suggests using a slice pattern, this is the maximum number of elements allowed in
+the slice pattern that is suggested. If more elements would be necessary, the lint is suppressed.
+For example, `[_, _, _, e, ..]` is a slice pattern with 4 elements.
+
+**Default Value:** `3` (`u64`)
+
+* [index_refutable_slice](https://rust-lang.github.io/rust-clippy/master/index.html#index_refutable_slice)
+
+
+### max-include-file-size
+The maximum size of a file included via `include_bytes!()` or `include_str!()`, in bytes
+
+**Default Value:** `1000000` (`u64`)
+
+* [large_include_file](https://rust-lang.github.io/rust-clippy/master/index.html#large_include_file)
+
+
+### allow-expect-in-tests
+Whether `expect` should be allowed within `#[cfg(test)]`
+
+**Default Value:** `false` (`bool`)
+
+* [expect_used](https://rust-lang.github.io/rust-clippy/master/index.html#expect_used)
+
+
+### allow-unwrap-in-tests
+Whether `unwrap` should be allowed in test cfg
+
+**Default Value:** `false` (`bool`)
+
+* [unwrap_used](https://rust-lang.github.io/rust-clippy/master/index.html#unwrap_used)
+
+
+### allow-dbg-in-tests
+Whether `dbg!` should be allowed in test functions
+
+**Default Value:** `false` (`bool`)
+
+* [dbg_macro](https://rust-lang.github.io/rust-clippy/master/index.html#dbg_macro)
+
+
+### allow-print-in-tests
+Whether print macros (ex. `println!`) should be allowed in test functions
+
+**Default Value:** `false` (`bool`)
+
+* [print_stdout](https://rust-lang.github.io/rust-clippy/master/index.html#print_stdout)
+* [print_stderr](https://rust-lang.github.io/rust-clippy/master/index.html#print_stderr)
+
+
+### large-error-threshold
+The maximum size of the `Err`-variant in a `Result` returned from a function
+
+**Default Value:** `128` (`u64`)
+
+* [result_large_err](https://rust-lang.github.io/rust-clippy/master/index.html#result_large_err)
+
+
+### ignore-interior-mutability
+A list of paths to types that should be treated like `Arc`, i.e. ignored but
+for the generic parameters for determining interior mutability
+
+**Default Value:** `["bytes::Bytes"]` (`Vec<String>`)
+
+* [mutable_key](https://rust-lang.github.io/rust-clippy/master/index.html#mutable_key)
+
+
+### allow-mixed-uninlined-format-args
+Whether to allow mixed uninlined format args, e.g. `format!("{} {}", a, foo.bar)`
+
+**Default Value:** `true` (`bool`)
+
+* [uninlined_format_args](https://rust-lang.github.io/rust-clippy/master/index.html#uninlined_format_args)
+
+
+### suppress-restriction-lint-in-const
+In same
+cases the restructured operation might not be unavoidable, as the
+suggested counterparts are unavailable in constant code. This
+configuration will cause restriction lints to trigger even
+if no suggestion can be made.
+
+**Default Value:** `false` (`bool`)
+
+* [indexing_slicing](https://rust-lang.github.io/rust-clippy/master/index.html#indexing_slicing)
+
+
+

src/tools/clippy/clippy_lints/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy_lints"
-version = "0.1.68"
+version = "0.1.69"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"

src/tools/clippy/clippy_lints/src/bool_assert_comparison.rs

@@ -1,10 +1,11 @@
+use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::macros::{find_assert_eq_args, root_macro_call_first_node};
-use clippy_utils::{diagnostics::span_lint_and_sugg, ty::implements_trait};
+use clippy_utils::ty::{implements_trait, is_copy};
 use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind, Lit};
-use rustc_lint::{LateContext, LateLintPass};
+use rustc_lint::{LateContext, LateLintPass, LintContext};
-use rustc_middle::ty;
+use rustc_middle::ty::{self, Ty};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::symbol::Ident;
 
@@ -43,9 +44,7 @@ fn is_bool_lit(e: &Expr<'_>) -> bool {
     ) && !e.span.from_expansion()
 }
 
-fn is_impl_not_trait_with_bool_out(cx: &LateContext<'_>, e: &Expr<'_>) -> bool {
+fn is_impl_not_trait_with_bool_out<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool {
-    let ty = cx.typeck_results().expr_ty(e);
-
     cx.tcx
         .lang_items()
         .not_trait()
@@ -77,31 +76,57 @@ impl<'tcx> LateLintPass<'tcx> for BoolAssertComparison {
             return;
         }
         let Some ((a, b, _)) = find_assert_eq_args(cx, expr, macro_call.expn) else { return };
-        if !(is_bool_lit(a) ^ is_bool_lit(b)) {
+
+        let a_span = a.span.source_callsite();
+        let b_span = b.span.source_callsite();
+
+        let (lit_span, non_lit_expr) = match (is_bool_lit(a), is_bool_lit(b)) {
+            // assert_eq!(true, b)
+            //            ^^^^^^
+            (true, false) => (a_span.until(b_span), b),
+            // assert_eq!(a, true)
+            //             ^^^^^^
+            (false, true) => (b_span.with_lo(a_span.hi()), a),
             // If there are two boolean arguments, we definitely don't understand
             // what's going on, so better leave things as is...
             //
             // Or there is simply no boolean and then we can leave things as is!
-            return;
+            _ => return,
-        }
+        };
 
-        if !is_impl_not_trait_with_bool_out(cx, a) || !is_impl_not_trait_with_bool_out(cx, b) {
+        let non_lit_ty = cx.typeck_results().expr_ty(non_lit_expr);
+
+        if !is_impl_not_trait_with_bool_out(cx, non_lit_ty) {
             // At this point the expression which is not a boolean
             // literal does not implement Not trait with a bool output,
             // so we cannot suggest to rewrite our code
             return;
         }
 
+        if !is_copy(cx, non_lit_ty) {
+            // Only lint with types that are `Copy` because `assert!(x)` takes
+            // ownership of `x` whereas `assert_eq(x, true)` does not
+            return;
+        }
+
         let macro_name = macro_name.as_str();
         let non_eq_mac = &macro_name[..macro_name.len() - 3];
-        span_lint_and_sugg(
+        span_lint_and_then(
             cx,
             BOOL_ASSERT_COMPARISON,
             macro_call.span,
             &format!("used `{macro_name}!` with a literal bool"),
-            "replace it with",
+            |diag| {
-            format!("{non_eq_mac}!(..)"),
+                // assert_eq!(...)
-            Applicability::MaybeIncorrect,
+                // ^^^^^^^^^
+                let name_span = cx.sess().source_map().span_until_char(macro_call.span, '!');
+
+                diag.multipart_suggestion(
+                    format!("replace it with `{non_eq_mac}!(..)`"),
+                    vec![(name_span, non_eq_mac.to_string()), (lit_span, String::new())],
+                    Applicability::MachineApplicable,
+                );
+            },
         );
     }
 }

src/tools/clippy/clippy_lints/src/casts/cast_possible_truncation.rs

@@ -1,11 +1,14 @@
 use clippy_utils::consts::{constant, Constant};
-use clippy_utils::diagnostics::span_lint;
+use clippy_utils::diagnostics::{span_lint, span_lint_and_then};
 use clippy_utils::expr_or_init;
+use clippy_utils::source::snippet;
 use clippy_utils::ty::{get_discriminant_value, is_isize_or_usize};
+use rustc_errors::{Applicability, SuggestionStyle};
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::{BinOpKind, Expr, ExprKind};
 use rustc_lint::LateContext;
 use rustc_middle::ty::{self, FloatTy, Ty};
+use rustc_span::Span;
 use rustc_target::abi::IntegerType;
 
 use super::{utils, CAST_ENUM_TRUNCATION, CAST_POSSIBLE_TRUNCATION};
@@ -74,7 +77,14 @@ fn apply_reductions(cx: &LateContext<'_>, nbits: u64, expr: &Expr<'_>, signed: b
     }
 }
 
-pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, cast_from: Ty<'_>, cast_to: Ty<'_>) {
+pub(super) fn check(
+    cx: &LateContext<'_>,
+    expr: &Expr<'_>,
+    cast_expr: &Expr<'_>,
+    cast_from: Ty<'_>,
+    cast_to: Ty<'_>,
+    cast_to_span: Span,
+) {
     let msg = match (cast_from.kind(), cast_to.is_integral()) {
         (ty::Int(_) | ty::Uint(_), true) => {
             let from_nbits = apply_reductions(
@@ -139,7 +149,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>,
                 );
                 return;
             }
-            format!("casting `{cast_from}` to `{cast_to}` may truncate the value{suffix}",)
+            format!("casting `{cast_from}` to `{cast_to}` may truncate the value{suffix}")
         },
 
         (ty::Float(_), true) => {
@@ -153,5 +163,19 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>,
         _ => return,
     };
 
-    span_lint(cx, CAST_POSSIBLE_TRUNCATION, expr.span, &msg);
+    let name_of_cast_from = snippet(cx, cast_expr.span, "..");
+    let cast_to_snip = snippet(cx, cast_to_span, "..");
+    let suggestion = format!("{cast_to_snip}::try_from({name_of_cast_from})");
+
+    span_lint_and_then(cx, CAST_POSSIBLE_TRUNCATION, expr.span, &msg, |diag| {
+        diag.help("if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...");
+        diag.span_suggestion_with_style(
+            expr.span,
+            "... or use `try_from` and handle the error accordingly",
+            suggestion,
+            Applicability::Unspecified,
+            // always show the suggestion in a separate line
+            SuggestionStyle::ShowAlways,
+        );
+    });
 }

src/tools/clippy/clippy_lints/src/casts/mod.rs

@@ -80,7 +80,8 @@ declare_clippy_lint! {
     /// ### What it does
     /// Checks for casts between numerical types that may
     /// truncate large values. This is expected behavior, so the cast is `Allow` by
-    /// default.
+    /// default. It suggests user either explicitly ignore the lint,
+    /// or use `try_from()` and handle the truncation, default, or panic explicitly.
     ///
     /// ### Why is this bad?
     /// In some problem domains, it is good practice to avoid
@@ -93,6 +94,21 @@ declare_clippy_lint! {
     ///     x as u8
     /// }
     /// ```
+    /// Use instead:
+    /// ```
+    /// fn as_u8(x: u64) -> u8 {
+    ///     if let Ok(x) = u8::try_from(x) {
+    ///         x
+    ///     } else {
+    ///         todo!();
+    ///     }
+    /// }
+    /// // Or
+    /// #[allow(clippy::cast_possible_truncation)]
+    /// fn as_u16(x: u64) -> u16 {
+    ///     x as u16
+    /// }
+    /// ```
     #[clippy::version = "pre 1.29.0"]
     pub CAST_POSSIBLE_TRUNCATION,
     pedantic,
@@ -712,7 +728,7 @@ impl<'tcx> LateLintPass<'tcx> for Casts {
             fn_to_numeric_cast_with_truncation::check(cx, expr, cast_expr, cast_from, cast_to);
 
             if cast_to.is_numeric() && !in_external_macro(cx.sess(), expr.span) {
-                cast_possible_truncation::check(cx, expr, cast_expr, cast_from, cast_to);
+                cast_possible_truncation::check(cx, expr, cast_expr, cast_from, cast_to, cast_to_hir.span);
                 if cast_from.is_numeric() {
                     cast_possible_wrap::check(cx, expr, cast_from, cast_to);
                     cast_precision_loss::check(cx, expr, cast_from, cast_to);

src/tools/clippy/clippy_lints/src/declared_lints.rs

@@ -422,6 +422,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::module_style::MOD_MODULE_FILES_INFO,
     crate::module_style::SELF_NAMED_MODULE_FILES_INFO,
     crate::multi_assignments::MULTI_ASSIGNMENTS_INFO,
+    crate::multiple_unsafe_ops_per_block::MULTIPLE_UNSAFE_OPS_PER_BLOCK_INFO,
     crate::mut_key::MUTABLE_KEY_TYPE_INFO,
     crate::mut_mut::MUT_MUT_INFO,
     crate::mut_reference::UNNECESSARY_MUT_PASSED_INFO,

src/tools/clippy/clippy_lints/src/doc.rs

@@ -251,7 +251,7 @@ declare_clippy_lint! {
     ///     unimplemented!();
     /// }
     /// ```
-    #[clippy::version = "1.66.0"]
+    #[clippy::version = "1.67.0"]
     pub UNNECESSARY_SAFETY_DOC,
     restriction,
     "`pub fn` or `pub trait` with `# Safety` docs"

src/tools/clippy/clippy_lints/src/enum_variants.rs

@@ -277,7 +277,7 @@ impl LateLintPass<'_> for EnumVariantNames {
                                 Some(c) if is_word_beginning(c) => span_lint(
                                     cx,
                                     MODULE_NAME_REPETITIONS,
-                                    item.span,
+                                    item.ident.span,
                                     "item name starts with its containing module's name",
                                 ),
                                 _ => (),
@@ -287,7 +287,7 @@ impl LateLintPass<'_> for EnumVariantNames {
                             span_lint(
                                 cx,
                                 MODULE_NAME_REPETITIONS,
-                                item.span,
+                                item.ident.span,
                                 "item name ends with its containing module's name",
                             );
                         }

src/tools/clippy/clippy_lints/src/from_raw_with_void_ptr.rs

@@ -31,7 +31,7 @@ declare_clippy_lint! {
     /// let _ = unsafe { Box::from_raw(ptr as *mut usize) };
     /// ```
     ///
-    #[clippy::version = "1.66.0"]
+    #[clippy::version = "1.67.0"]
     pub FROM_RAW_WITH_VOID_PTR,
     suspicious,
     "creating a `Box` from a void raw pointer"

src/tools/clippy/clippy_lints/src/instant_subtraction.rs

@@ -59,7 +59,7 @@ declare_clippy_lint! {
     ///
     /// [`Duration`]: std::time::Duration
     /// [`Instant::now()`]: std::time::Instant::now;
-    #[clippy::version = "1.65.0"]
+    #[clippy::version = "1.67.0"]
     pub UNCHECKED_DURATION_SUBTRACTION,
     pedantic,
     "finds unchecked subtraction of a 'Duration' from an 'Instant'"

src/tools/clippy/clippy_lints/src/let_underscore.rs

@@ -84,7 +84,7 @@ declare_clippy_lint! {
     /// let _ = foo().await;
     /// # }
     /// ```
-    #[clippy::version = "1.66"]
+    #[clippy::version = "1.67.0"]
     pub LET_UNDERSCORE_FUTURE,
     suspicious,
     "non-binding `let` on a future"

src/tools/clippy/clippy_lints/src/lib.rs

@@ -198,6 +198,7 @@ mod missing_trait_methods;
 mod mixed_read_write_in_expression;
 mod module_style;
 mod multi_assignments;
+mod multiple_unsafe_ops_per_block;
 mod mut_key;
 mod mut_mut;
 mod mut_reference;
@@ -908,6 +909,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf:
     store.register_late_pass(|_| Box::new(fn_null_check::FnNullCheck));
     store.register_late_pass(|_| Box::new(permissions_set_readonly_false::PermissionsSetReadonlyFalse));
     store.register_late_pass(|_| Box::new(size_of_ref::SizeOfRef));
+    store.register_late_pass(|_| Box::new(multiple_unsafe_ops_per_block::MultipleUnsafeOpsPerBlock));
     // add lints here, do not remove this comment, it's used in `new_lint`
 }
 

src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs

@@ -43,7 +43,7 @@ declare_clippy_lint! {
     ///     'A'.is_ascii_uppercase();
     /// }
     /// ```
-    #[clippy::version = "1.66.0"]
+    #[clippy::version = "1.67.0"]
     pub MANUAL_IS_ASCII_CHECK,
     style,
     "use dedicated method to check ascii range"

src/tools/clippy/clippy_lints/src/methods/mod.rs

@@ -3102,7 +3102,7 @@ declare_clippy_lint! {
     ///     Ok(())
     /// }
     /// ```
-    #[clippy::version = "1.66.0"]
+    #[clippy::version = "1.67.0"]
     pub SEEK_FROM_CURRENT,
     complexity,
     "use dedicated method for seek from current position"
@@ -3133,7 +3133,7 @@ declare_clippy_lint! {
     ///     t.rewind();
     /// }
     /// ```
-    #[clippy::version = "1.66.0"]
+    #[clippy::version = "1.67.0"]
     pub SEEK_TO_START_INSTEAD_OF_REWIND,
     complexity,
     "jumping to the start of stream using `seek` method"

src/tools/clippy/clippy_lints/src/missing_trait_methods.rs

@@ -94,7 +94,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingTraitMethods {
                         "implement the method",
                     );
                 }
-            })
+            });
         }
     }
 }

src/tools/clippy/clippy_lints/src/multiple_unsafe_ops_per_block.rs

@@ -0,0 +1,185 @@
+use clippy_utils::{
+    diagnostics::span_lint_and_then,
+    visitors::{for_each_expr_with_closures, Descend, Visitable},
+};
+use core::ops::ControlFlow::Continue;
+use hir::{
+    def::{DefKind, Res},
+    BlockCheckMode, ExprKind, QPath, UnOp, Unsafety,
+};
+use rustc_ast::Mutability;
+use rustc_hir as hir;
+use rustc_lint::{LateContext, LateLintPass};
+use rustc_session::{declare_lint_pass, declare_tool_lint};
+use rustc_span::Span;
+
+declare_clippy_lint! {
+    /// ### What it does
+    /// Checks for `unsafe` blocks that contain more than one unsafe operation.
+    ///
+    /// ### Why is this bad?
+    /// Combined with `undocumented_unsafe_blocks`,
+    /// this lint ensures that each unsafe operation must be independently justified.
+    /// Combined with `unused_unsafe`, this lint also ensures
+    /// elimination of unnecessary unsafe blocks through refactoring.
+    ///
+    /// ### Example
+    /// ```rust
+    /// /// Reads a `char` from the given pointer.
+    /// ///
+    /// /// # Safety
+    /// ///
+    /// /// `ptr` must point to four consecutive, initialized bytes which
+    /// /// form a valid `char` when interpreted in the native byte order.
+    /// fn read_char(ptr: *const u8) -> char {
+    ///     // SAFETY: The caller has guaranteed that the value pointed
+    ///     // to by `bytes` is a valid `char`.
+    ///     unsafe { char::from_u32_unchecked(*ptr.cast::<u32>()) }
+    /// }
+    /// ```
+    /// Use instead:
+    /// ```rust
+    /// /// Reads a `char` from the given pointer.
+    /// ///
+    /// /// # Safety
+    /// ///
+    /// /// - `ptr` must be 4-byte aligned, point to four consecutive
+    /// ///   initialized bytes, and be valid for reads of 4 bytes.
+    /// /// - The bytes pointed to by `ptr` must represent a valid
+    /// ///   `char` when interpreted in the native byte order.
+    /// fn read_char(ptr: *const u8) -> char {
+    ///     // SAFETY: `ptr` is 4-byte aligned, points to four consecutive
+    ///     // initialized bytes, and is valid for reads of 4 bytes.
+    ///     let int_value = unsafe { *ptr.cast::<u32>() };
+    ///
+    ///     // SAFETY: The caller has guaranteed that the four bytes
+    ///     // pointed to by `bytes` represent a valid `char`.
+    ///     unsafe { char::from_u32_unchecked(int_value) }
+    /// }
+    /// ```
+    #[clippy::version = "1.68.0"]
+    pub MULTIPLE_UNSAFE_OPS_PER_BLOCK,
+    restriction,
+    "more than one unsafe operation per `unsafe` block"
+}
+declare_lint_pass!(MultipleUnsafeOpsPerBlock => [MULTIPLE_UNSAFE_OPS_PER_BLOCK]);
+
+impl<'tcx> LateLintPass<'tcx> for MultipleUnsafeOpsPerBlock {
+    fn check_block(&mut self, cx: &LateContext<'tcx>, block: &'tcx hir::Block<'_>) {
+        if !matches!(block.rules, BlockCheckMode::UnsafeBlock(_)) {
+            return;
+        }
+        let mut unsafe_ops = vec![];
+        collect_unsafe_exprs(cx, block, &mut unsafe_ops);
+        if unsafe_ops.len() > 1 {
+            span_lint_and_then(
+                cx,
+                MULTIPLE_UNSAFE_OPS_PER_BLOCK,
+                block.span,
+                &format!(
+                    "this `unsafe` block contains {} unsafe operations, expected only one",
+                    unsafe_ops.len()
+                ),
+                |diag| {
+                    for (msg, span) in unsafe_ops {
+                        diag.span_note(span, msg);
+                    }
+                },
+            );
+        }
+    }
+}
+
+fn collect_unsafe_exprs<'tcx>(
+    cx: &LateContext<'tcx>,
+    node: impl Visitable<'tcx>,
+    unsafe_ops: &mut Vec<(&'static str, Span)>,
+) {
+    for_each_expr_with_closures(cx, node, |expr| {
+        match expr.kind {
+            ExprKind::InlineAsm(_) => unsafe_ops.push(("inline assembly used here", expr.span)),
+
+            ExprKind::Field(e, _) => {
+                if cx.typeck_results().expr_ty(e).is_union() {
+                    unsafe_ops.push(("union field access occurs here", expr.span));
+                }
+            },
+
+            ExprKind::Path(QPath::Resolved(
+                _,
+                hir::Path {
+                    res: Res::Def(DefKind::Static(Mutability::Mut), _),
+                    ..
+                },
+            )) => {
+                unsafe_ops.push(("access of a mutable static occurs here", expr.span));
+            },
+
+            ExprKind::Unary(UnOp::Deref, e) if cx.typeck_results().expr_ty_adjusted(e).is_unsafe_ptr() => {
+                unsafe_ops.push(("raw pointer dereference occurs here", expr.span));
+            },
+
+            ExprKind::Call(path_expr, _) => match path_expr.kind {
+                ExprKind::Path(QPath::Resolved(
+                    _,
+                    hir::Path {
+                        res: Res::Def(kind, def_id),
+                        ..
+                    },
+                )) if kind.is_fn_like() => {
+                    let sig = cx.tcx.fn_sig(*def_id);
+                    if sig.0.unsafety() == Unsafety::Unsafe {
+                        unsafe_ops.push(("unsafe function call occurs here", expr.span));
+                    }
+                },
+
+                ExprKind::Path(QPath::TypeRelative(..)) => {
+                    if let Some(sig) = cx
+                        .typeck_results()
+                        .type_dependent_def_id(path_expr.hir_id)
+                        .map(|def_id| cx.tcx.fn_sig(def_id))
+                    {
+                        if sig.0.unsafety() == Unsafety::Unsafe {
+                            unsafe_ops.push(("unsafe function call occurs here", expr.span));
+                        }
+                    }
+                },
+
+                _ => {},
+            },
+
+            ExprKind::MethodCall(..) => {
+                if let Some(sig) = cx
+                    .typeck_results()
+                    .type_dependent_def_id(expr.hir_id)
+                    .map(|def_id| cx.tcx.fn_sig(def_id))
+                {
+                    if sig.0.unsafety() == Unsafety::Unsafe {
+                        unsafe_ops.push(("unsafe method call occurs here", expr.span));
+                    }
+                }
+            },
+
+            ExprKind::AssignOp(_, lhs, rhs) | ExprKind::Assign(lhs, rhs, _) => {
+                if matches!(
+                    lhs.kind,
+                    ExprKind::Path(QPath::Resolved(
+                        _,
+                        hir::Path {
+                            res: Res::Def(DefKind::Static(Mutability::Mut), _),
+                            ..
+                        }
+                    ))
+                ) {
+                    unsafe_ops.push(("modification of a mutable static occurs here", expr.span));
+                    collect_unsafe_exprs(cx, rhs, unsafe_ops);
+                    return Continue(Descend::No);
+                }
+            },
+
+            _ => {},
+        };
+
+        Continue::<(), _>(Descend::Yes)
+    });
+}

src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs

@@ -7,7 +7,7 @@ use rustc_hir::def_id::DefId;
 use rustc_hir::hir_id::HirIdMap;
 use rustc_hir::{Body, Expr, ExprKind, HirId, ImplItem, ImplItemKind, Node, PatKind, TraitItem, TraitItemKind};
 use rustc_lint::{LateContext, LateLintPass};
-use rustc_middle::ty::subst::{GenericArgKind, SubstsRef};
+use rustc_middle::ty::subst::{EarlyBinder, GenericArgKind, SubstsRef};
 use rustc_middle::ty::{self, ConstKind};
 use rustc_session::{declare_tool_lint, impl_lint_pass};
 use rustc_span::symbol::{kw, Ident};
@@ -244,7 +244,7 @@ impl<'tcx> LateLintPass<'tcx> for OnlyUsedInRecursion {
             })) => {
                 #[allow(trivial_casts)]
                 if let Some(Node::Item(item)) = get_parent_node(cx.tcx, owner_id.into())
-                    && let Some(trait_ref) = cx.tcx.impl_trait_ref(item.owner_id).map(|t| t.subst_identity())
+                    && let Some(trait_ref) = cx.tcx.impl_trait_ref(item.owner_id).map(EarlyBinder::subst_identity)
                     && let Some(trait_item_id) = cx.tcx.associated_item(owner_id).trait_item_def_id
                 {
                     (

src/tools/clippy/clippy_lints/src/returns.rs

@@ -1,7 +1,7 @@
 use clippy_utils::diagnostics::{span_lint_and_then, span_lint_hir_and_then};
 use clippy_utils::source::{snippet_opt, snippet_with_context};
 use clippy_utils::visitors::{for_each_expr, Descend};
-use clippy_utils::{fn_def_id, path_to_local_id};
+use clippy_utils::{fn_def_id, path_to_local_id, span_find_starting_semi};
 use core::ops::ControlFlow;
 use if_chain::if_chain;
 use rustc_errors::Applicability;
@@ -151,7 +151,7 @@ impl<'tcx> LateLintPass<'tcx> for Return {
         kind: FnKind<'tcx>,
         _: &'tcx FnDecl<'tcx>,
         body: &'tcx Body<'tcx>,
-        _: Span,
+        sp: Span,
         _: HirId,
     ) {
         match kind {
@@ -166,14 +166,14 @@ impl<'tcx> LateLintPass<'tcx> for Return {
                 check_final_expr(cx, body.value, vec![], replacement);
             },
             FnKind::ItemFn(..) | FnKind::Method(..) => {
-                check_block_return(cx, &body.value.kind, vec![]);
+                check_block_return(cx, &body.value.kind, sp, vec![]);
             },
         }
     }
 }
 
 // if `expr` is a block, check if there are needless returns in it
-fn check_block_return<'tcx>(cx: &LateContext<'tcx>, expr_kind: &ExprKind<'tcx>, semi_spans: Vec<Span>) {
+fn check_block_return<'tcx>(cx: &LateContext<'tcx>, expr_kind: &ExprKind<'tcx>, sp: Span, mut semi_spans: Vec<Span>) {
     if let ExprKind::Block(block, _) = expr_kind {
         if let Some(block_expr) = block.expr {
             check_final_expr(cx, block_expr, semi_spans, RetReplacement::Empty);
@@ -183,12 +183,14 @@ fn check_block_return<'tcx>(cx: &LateContext<'tcx>, expr_kind: &ExprKind<'tcx>,
                     check_final_expr(cx, expr, semi_spans, RetReplacement::Empty);
                 },
                 StmtKind::Semi(semi_expr) => {
-                    let mut semi_spans_and_this_one = semi_spans;
+                    // Remove ending semicolons and any whitespace ' ' in between.
-                    // we only want the span containing the semicolon so we can remove it later. From `entry.rs:382`
+                    // Without `return`, the suggestion might not compile if the semicolon is retained
-                    if let Some(semicolon_span) = stmt.span.trim_start(semi_expr.span) {
+                    if let Some(semi_span) = stmt.span.trim_start(semi_expr.span) {
-                        semi_spans_and_this_one.push(semicolon_span);
+                        let semi_span_to_remove =
-                        check_final_expr(cx, semi_expr, semi_spans_and_this_one, RetReplacement::Empty);
+                            span_find_starting_semi(cx.sess().source_map(), semi_span.with_hi(sp.hi()));
+                        semi_spans.push(semi_span_to_remove);
                     }
+                    check_final_expr(cx, semi_expr, semi_spans, RetReplacement::Empty);
                 },
                 _ => (),
             }
@@ -231,9 +233,9 @@ fn check_final_expr<'tcx>(
             emit_return_lint(cx, ret_span, semi_spans, inner.as_ref().map(|i| i.span), replacement);
         },
         ExprKind::If(_, then, else_clause_opt) => {
-            check_block_return(cx, &then.kind, semi_spans.clone());
+            check_block_return(cx, &then.kind, peeled_drop_expr.span, semi_spans.clone());
             if let Some(else_clause) = else_clause_opt {
-                check_block_return(cx, &else_clause.kind, semi_spans);
+                check_block_return(cx, &else_clause.kind, peeled_drop_expr.span, semi_spans);
             }
         },
         // a match expr, check all arms
@@ -246,7 +248,7 @@ fn check_final_expr<'tcx>(
             }
         },
         // if it's a whole block, check it
-        other_expr_kind => check_block_return(cx, other_expr_kind, semi_spans),
+        other_expr_kind => check_block_return(cx, other_expr_kind, peeled_drop_expr.span, semi_spans),
     }
 }
 

src/tools/clippy/clippy_lints/src/suspicious_xor_used_as_pow.rs

@@ -9,7 +9,7 @@ declare_clippy_lint! {
     /// ### What it does
     /// Warns for a Bitwise XOR (`^`) operator being probably confused as a powering. It will not trigger if any of the numbers are not in decimal.
     /// ### Why is this bad?
-    ///	It's most probably a typo and may lead to unexpected behaviours.
+    /// It's most probably a typo and may lead to unexpected behaviours.
     /// ### Example
     /// ```rust
     /// let x = 3_i32 ^ 4_i32;
@@ -18,7 +18,7 @@ declare_clippy_lint! {
     /// ```rust
     /// let x = 3_i32.pow(4);
     /// ```
-    #[clippy::version = "1.66.0"]
+    #[clippy::version = "1.67.0"]
     pub SUSPICIOUS_XOR_USED_AS_POW,
     restriction,
     "XOR (`^`) operator possibly used as exponentiation operator"

src/tools/clippy/clippy_lints/src/transmute/mod.rs

@@ -479,7 +479,10 @@ impl<'tcx> LateLintPass<'tcx> for Transmute {
                 // - char conversions (https://github.com/rust-lang/rust/issues/89259)
                 let const_context = in_constant(cx, e.hir_id);
 
-                let from_ty = cx.typeck_results().expr_ty_adjusted(arg);
+                let (from_ty, from_ty_adjusted) = match cx.typeck_results().expr_adjustments(arg) {
+                    [] => (cx.typeck_results().expr_ty(arg), false),
+                    [.., a] => (a.target, true),
+                };
                 // Adjustments for `to_ty` happen after the call to `transmute`, so don't use them.
                 let to_ty = cx.typeck_results().expr_ty(e);
 
@@ -506,7 +509,7 @@ impl<'tcx> LateLintPass<'tcx> for Transmute {
                     );
 
                 if !linted {
-                    transmutes_expressible_as_ptr_casts::check(cx, e, from_ty, to_ty, arg);
+                    transmutes_expressible_as_ptr_casts::check(cx, e, from_ty, from_ty_adjusted, to_ty, arg);
                 }
             }
         }

src/tools/clippy/clippy_lints/src/transmute/transmutes_expressible_as_ptr_casts.rs

@@ -1,11 +1,11 @@
-use super::utils::can_be_expressed_as_pointer_cast;
+use super::utils::check_cast;
 use super::TRANSMUTES_EXPRESSIBLE_AS_PTR_CASTS;
-use clippy_utils::diagnostics::span_lint_and_then;
+use clippy_utils::diagnostics::span_lint_and_sugg;
-use clippy_utils::sugg;
+use clippy_utils::sugg::Sugg;
 use rustc_errors::Applicability;
 use rustc_hir::Expr;
 use rustc_lint::LateContext;
-use rustc_middle::ty::Ty;
+use rustc_middle::ty::{cast::CastKind, Ty};
 
 /// Checks for `transmutes_expressible_as_ptr_casts` lint.
 /// Returns `true` if it's triggered, otherwise returns `false`.
@@ -13,24 +13,40 @@ pub(super) fn check<'tcx>(
     cx: &LateContext<'tcx>,
     e: &'tcx Expr<'_>,
     from_ty: Ty<'tcx>,
+    from_ty_adjusted: bool,
     to_ty: Ty<'tcx>,
     arg: &'tcx Expr<'_>,
 ) -> bool {
-    if can_be_expressed_as_pointer_cast(cx, e, from_ty, to_ty) {
+    use CastKind::{AddrPtrCast, ArrayPtrCast, FnPtrAddrCast, FnPtrPtrCast, PtrAddrCast, PtrPtrCast};
-        span_lint_and_then(
+    let mut app = Applicability::MachineApplicable;
-            cx,
+    let sugg = match check_cast(cx, e, from_ty, to_ty) {
-            TRANSMUTES_EXPRESSIBLE_AS_PTR_CASTS,
+        Some(PtrPtrCast | AddrPtrCast | ArrayPtrCast | FnPtrPtrCast | FnPtrAddrCast) => {
-            e.span,
+            Sugg::hir_with_context(cx, arg, e.span.ctxt(), "..", &mut app)
-            &format!("transmute from `{from_ty}` to `{to_ty}` which could be expressed as a pointer cast instead"),
+                .as_ty(to_ty.to_string())
-            |diag| {
+                .to_string()
-                if let Some(arg) = sugg::Sugg::hir_opt(cx, arg) {
+        },
-                    let sugg = arg.as_ty(to_ty.to_string()).to_string();
+        Some(PtrAddrCast) if !from_ty_adjusted => Sugg::hir_with_context(cx, arg, e.span.ctxt(), "..", &mut app)
-                    diag.span_suggestion(e.span, "try", sugg, Applicability::MachineApplicable);
+            .as_ty(to_ty.to_string())
-                }
+            .to_string(),
-            },
+
-        );
+        // The only adjustments here would be ref-to-ptr and unsize coercions. The result of an unsize coercions can't
-        true
+        // be transmuted to a usize. For ref-to-ptr coercions, borrows need to be cast to a pointer before being cast to
-    } else {
+        // a usize.
-        false
+        Some(PtrAddrCast) => format!(
-    }
+            "{} as {to_ty}",
+            Sugg::hir_with_context(cx, arg, e.span.ctxt(), "..", &mut app).as_ty(from_ty)
+        ),
+        _ => return false,
+    };
+
+    span_lint_and_sugg(
+        cx,
+        TRANSMUTES_EXPRESSIBLE_AS_PTR_CASTS,
+        e.span,
+        &format!("transmute from `{from_ty}` to `{to_ty}` which could be expressed as a pointer cast instead"),
+        "try",
+        sugg,
+        app,
+    );
+    true
 }

src/tools/clippy/clippy_lints/src/transmute/utils.rs

@@ -20,28 +20,16 @@ pub(super) fn is_layout_incompatible<'tcx>(cx: &LateContext<'tcx>, from: Ty<'tcx
     }
 }
 
-/// Check if the type conversion can be expressed as a pointer cast, instead of
-/// a transmute. In certain cases, including some invalid casts from array
-/// references to pointers, this may cause additional errors to be emitted and/or
-/// ICE error messages. This function will panic if that occurs.
-pub(super) fn can_be_expressed_as_pointer_cast<'tcx>(
-    cx: &LateContext<'tcx>,
-    e: &'tcx Expr<'_>,
-    from_ty: Ty<'tcx>,
-    to_ty: Ty<'tcx>,
-) -> bool {
-    use CastKind::{AddrPtrCast, ArrayPtrCast, FnPtrAddrCast, FnPtrPtrCast, PtrAddrCast, PtrPtrCast};
-    matches!(
-        check_cast(cx, e, from_ty, to_ty),
-        Some(PtrPtrCast | PtrAddrCast | AddrPtrCast | ArrayPtrCast | FnPtrPtrCast | FnPtrAddrCast)
-    )
-}
-
 /// If a cast from `from_ty` to `to_ty` is valid, returns an Ok containing the kind of
 /// the cast. In certain cases, including some invalid casts from array references
 /// to pointers, this may cause additional errors to be emitted and/or ICE error
 /// messages. This function will panic if that occurs.
-fn check_cast<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'_>, from_ty: Ty<'tcx>, to_ty: Ty<'tcx>) -> Option<CastKind> {
+pub(super) fn check_cast<'tcx>(
+    cx: &LateContext<'tcx>,
+    e: &'tcx Expr<'_>,
+    from_ty: Ty<'tcx>,
+    to_ty: Ty<'tcx>,
+) -> Option<CastKind> {
     let hir_id = e.hir_id;
     let local_def_id = hir_id.owner.def_id;
 

src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs

@@ -263,6 +263,18 @@ fn expr_has_unnecessary_safety_comment<'tcx>(
     expr: &'tcx hir::Expr<'tcx>,
     comment_pos: BytePos,
 ) -> Option<Span> {
+    if cx.tcx.hir().parent_iter(expr.hir_id).any(|(_, ref node)| {
+        matches!(
+            node,
+            Node::Block(&Block {
+                rules: BlockCheckMode::UnsafeBlock(UnsafeSource::UserProvided),
+                ..
+            }),
+        )
+    }) {
+        return None;
+    }
+
     // this should roughly be the reverse of `block_parents_have_safety_comment`
     if for_each_expr_with_closures(cx, expr, |expr| match expr.kind {
         hir::ExprKind::Block(

src/tools/clippy/clippy_lints/src/utils/conf.rs

@@ -219,7 +219,8 @@ define_Conf! {
     ///
     /// #### Noteworthy
     ///
-    /// A type, say `SomeType`, listed in this configuration has the same behavior of `["SomeType" , "*"], ["*", "SomeType"]` in `arithmetic_side_effects_allowed_binary`.
+    /// A type, say `SomeType`, listed in this configuration has the same behavior of
+    /// `["SomeType" , "*"], ["*", "SomeType"]` in `arithmetic_side_effects_allowed_binary`.
     (arithmetic_side_effects_allowed: rustc_data_structures::fx::FxHashSet<String> = <_>::default()),
     /// Lint: ARITHMETIC_SIDE_EFFECTS.
     ///

src/tools/clippy/clippy_lints/src/utils/internal_lints/metadata_collector.rs

@@ -14,6 +14,7 @@ use clippy_utils::diagnostics::span_lint;
 use clippy_utils::ty::{match_type, walk_ptrs_ty_depth};
 use clippy_utils::{last_path_segment, match_def_path, match_function_call, match_path, paths};
 use if_chain::if_chain;
+use itertools::Itertools;
 use rustc_ast as ast;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::{
@@ -34,8 +35,10 @@ use std::path::Path;
 use std::path::PathBuf;
 use std::process::Command;
 
-/// This is the output file of the lint collector.
+/// This is the json output file of the lint collector.
-const OUTPUT_FILE: &str = "../util/gh-pages/lints.json";
+const JSON_OUTPUT_FILE: &str = "../util/gh-pages/lints.json";
+/// This is the markdown output file of the lint collector.
+const MARKDOWN_OUTPUT_FILE: &str = "../book/src/lint_configuration.md";
 /// These lints are excluded from the export.
 const BLACK_LISTED_LINTS: &[&str] = &["lint_author", "dump_hir", "internal_metadata_collector"];
 /// These groups will be ignored by the lint group matcher. This is useful for collections like
@@ -176,6 +179,23 @@ This lint has the following configuration variables:
                 )
             })
     }
+
+    fn configs_to_markdown(&self, map_fn: fn(&ClippyConfiguration) -> String) -> String {
+        self.config
+            .iter()
+            .filter(|config| config.deprecation_reason.is_none())
+            .filter(|config| !config.lints.is_empty())
+            .map(map_fn)
+            .join("\n")
+    }
+
+    fn get_markdown_docs(&self) -> String {
+        format!(
+            "## Lint Configuration Options\n| <div style=\"width:290px\">Option</div> | Default Value |\n|--|--|\n{}\n\n{}\n",
+            self.configs_to_markdown(ClippyConfiguration::to_markdown_table_entry),
+            self.configs_to_markdown(ClippyConfiguration::to_markdown_paragraph),
+        )
+    }
 }
 
 impl Drop for MetadataCollector {
@@ -199,12 +219,37 @@ impl Drop for MetadataCollector {
 
         collect_renames(&mut lints);
 
-        // Outputting
+        // Outputting json
-        if Path::new(OUTPUT_FILE).exists() {
+        if Path::new(JSON_OUTPUT_FILE).exists() {
-            fs::remove_file(OUTPUT_FILE).unwrap();
+            fs::remove_file(JSON_OUTPUT_FILE).unwrap();
         }
-        let mut file = OpenOptions::new().write(true).create(true).open(OUTPUT_FILE).unwrap();
+        let mut file = OpenOptions::new()
+            .write(true)
+            .create(true)
+            .open(JSON_OUTPUT_FILE)
+            .unwrap();
         writeln!(file, "{}", serde_json::to_string_pretty(&lints).unwrap()).unwrap();
+
+        // Outputting markdown
+        if Path::new(MARKDOWN_OUTPUT_FILE).exists() {
+            fs::remove_file(MARKDOWN_OUTPUT_FILE).unwrap();
+        }
+        let mut file = OpenOptions::new()
+            .write(true)
+            .create(true)
+            .open(MARKDOWN_OUTPUT_FILE)
+            .unwrap();
+        writeln!(
+            file,
+            "<!--
+This file is generated by `cargo collect-metadata`.
+Please use that command to update the file and do not edit it by hand.
+-->
+
+{}",
+            self.get_markdown_docs(),
+        )
+        .unwrap();
     }
 }
 
@@ -505,6 +550,28 @@ impl ClippyConfiguration {
             deprecation_reason,
         }
     }
+
+    fn to_markdown_paragraph(&self) -> String {
+        format!(
+            "### {}\n{}\n\n**Default Value:** `{}` (`{}`)\n\n{}\n\n",
+            self.name,
+            self.doc
+                .lines()
+                .map(|line| line.strip_prefix("    ").unwrap_or(line))
+                .join("\n"),
+            self.default,
+            self.config_type,
+            self.lints
+                .iter()
+                .map(|name| name.to_string().split_whitespace().next().unwrap().to_string())
+                .map(|name| format!("* [{name}](https://rust-lang.github.io/rust-clippy/master/index.html#{name})"))
+                .join("\n"),
+        )
+    }
+
+    fn to_markdown_table_entry(&self) -> String {
+        format!("| [{}](#{}) | `{}` |", self.name, self.name, self.default)
+    }
 }
 
 fn collect_configs() -> Vec<ClippyConfiguration> {

src/tools/clippy/clippy_utils/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy_utils"
-version = "0.1.68"
+version = "0.1.69"
 edition = "2021"
 publish = false
 

src/tools/clippy/clippy_utils/src/lib.rs

@@ -2491,6 +2491,10 @@ pub fn span_extract_comment(sm: &SourceMap, span: Span) -> String {
     comments_buf.join("\n")
 }
 
+pub fn span_find_starting_semi(sm: &SourceMap, span: Span) -> Span {
+    sm.span_take_while(span, |&ch| ch == ' ' || ch == ';')
+}
+
 macro_rules! op_utils {
     ($($name:ident $assign:ident)*) => {
         /// Binary operation traits like `LangItem::Add`

src/tools/clippy/clippy_utils/src/ty.rs

@@ -647,9 +647,12 @@ pub fn ty_sig<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<ExprFnSig<'t
             Some(ExprFnSig::Closure(decl, subs.as_closure().sig()))
         },
         ty::FnDef(id, subs) => Some(ExprFnSig::Sig(cx.tcx.fn_sig(id).subst(cx.tcx, subs), Some(id))),
-        ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => {
+        ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => sig_from_bounds(
-            sig_from_bounds(cx, ty, cx.tcx.item_bounds(def_id).subst(cx.tcx, substs), cx.tcx.opt_parent(def_id))
+            cx,
-        },
+            ty,
+            cx.tcx.item_bounds(def_id).subst(cx.tcx, substs),
+            cx.tcx.opt_parent(def_id),
+        ),
         ty::FnPtr(sig) => Some(ExprFnSig::Sig(sig, None)),
         ty::Dynamic(bounds, _, _) => {
             let lang_items = cx.tcx.lang_items();

src/tools/clippy/declare_clippy_lint/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "declare_clippy_lint"
-version = "0.1.68"
+version = "0.1.69"
 edition = "2021"
 publish = false
 

src/tools/clippy/rust-toolchain

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "nightly-2023-01-12"
+channel = "nightly-2023-01-27"
 components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"]

src/tools/clippy/src/main.rs

@@ -28,7 +28,7 @@ with:
     -D --deny OPT       Set lint denied
     -F --forbid OPT     Set lint forbidden
 
-You can use tool lints to allow or deny lints from your code, eg.:
+You can use tool lints to allow or deny lints from your code, e.g.:
 
     #[allow(clippy::needless_lifetimes)]
 "#;

src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr

@@ -7,14 +7,6 @@ LL |     const DEREF_TRAIT: [&str; 4] = ["core", "ops", "deref", "Deref"];
    = help: convert all references to use `sym::Deref`
    = note: `-D clippy::unnecessary-def-path` implied by `-D warnings`
 
-error: hardcoded path to a language item
-  --> $DIR/unnecessary_def_path_hardcoded_path.rs:11:40
-   |
-LL |     const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"];
-   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   |
-   = help: convert all references to use `LangItem::DerefMut`
-
 error: hardcoded path to a diagnostic item
   --> $DIR/unnecessary_def_path_hardcoded_path.rs:12:43
    |
@@ -23,5 +15,13 @@ LL |     const DEREF_TRAIT_METHOD: [&str; 5] = ["core", "ops", "deref", "Deref",
    |
    = help: convert all references to use `sym::deref_method`
 
+error: hardcoded path to a language item
+  --> $DIR/unnecessary_def_path_hardcoded_path.rs:11:40
+   |
+LL |     const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"];
+   |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: convert all references to use `LangItem::DerefMut`
+
 error: aborting due to 3 previous errors
 

src/tools/clippy/tests/ui/bool_assert_comparison.fixed

@@ -0,0 +1,161 @@
+// run-rustfix
+
+#![allow(unused, clippy::assertions_on_constants)]
+#![warn(clippy::bool_assert_comparison)]
+
+use std::ops::Not;
+
+macro_rules! a {
+    () => {
+        true
+    };
+}
+macro_rules! b {
+    () => {
+        true
+    };
+}
+
+// Implements the Not trait but with an output type
+// that's not bool. Should not suggest a rewrite
+#[derive(Debug, Clone, Copy)]
+enum ImplNotTraitWithoutBool {
+    VariantX(bool),
+    VariantY(u32),
+}
+
+impl PartialEq<bool> for ImplNotTraitWithoutBool {
+    fn eq(&self, other: &bool) -> bool {
+        match *self {
+            ImplNotTraitWithoutBool::VariantX(b) => b == *other,
+            _ => false,
+        }
+    }
+}
+
+impl Not for ImplNotTraitWithoutBool {
+    type Output = Self;
+
+    fn not(self) -> Self::Output {
+        match self {
+            ImplNotTraitWithoutBool::VariantX(b) => ImplNotTraitWithoutBool::VariantX(!b),
+            ImplNotTraitWithoutBool::VariantY(0) => ImplNotTraitWithoutBool::VariantY(1),
+            ImplNotTraitWithoutBool::VariantY(_) => ImplNotTraitWithoutBool::VariantY(0),
+        }
+    }
+}
+
+// This type implements the Not trait with an Output of
+// type bool. Using assert!(..) must be suggested
+#[derive(Debug, Clone, Copy)]
+struct ImplNotTraitWithBool;
+
+impl PartialEq<bool> for ImplNotTraitWithBool {
+    fn eq(&self, other: &bool) -> bool {
+        false
+    }
+}
+
+impl Not for ImplNotTraitWithBool {
+    type Output = bool;
+
+    fn not(self) -> Self::Output {
+        true
+    }
+}
+
+#[derive(Debug)]
+struct NonCopy;
+
+impl PartialEq<bool> for NonCopy {
+    fn eq(&self, other: &bool) -> bool {
+        false
+    }
+}
+
+impl Not for NonCopy {
+    type Output = bool;
+
+    fn not(self) -> Self::Output {
+        true
+    }
+}
+
+fn main() {
+    let a = ImplNotTraitWithoutBool::VariantX(true);
+    let b = ImplNotTraitWithBool;
+
+    assert_eq!("a".len(), 1);
+    assert!("a".is_empty());
+    assert!("".is_empty());
+    assert!("".is_empty());
+    assert_eq!(a!(), b!());
+    assert_eq!(a!(), "".is_empty());
+    assert_eq!("".is_empty(), b!());
+    assert_eq!(a, true);
+    assert!(b);
+
+    assert_ne!("a".len(), 1);
+    assert!("a".is_empty());
+    assert!("".is_empty());
+    assert!("".is_empty());
+    assert_ne!(a!(), b!());
+    assert_ne!(a!(), "".is_empty());
+    assert_ne!("".is_empty(), b!());
+    assert_ne!(a, true);
+    assert!(b);
+
+    debug_assert_eq!("a".len(), 1);
+    debug_assert!("a".is_empty());
+    debug_assert!("".is_empty());
+    debug_assert!("".is_empty());
+    debug_assert_eq!(a!(), b!());
+    debug_assert_eq!(a!(), "".is_empty());
+    debug_assert_eq!("".is_empty(), b!());
+    debug_assert_eq!(a, true);
+    debug_assert!(b);
+
+    debug_assert_ne!("a".len(), 1);
+    debug_assert!("a".is_empty());
+    debug_assert!("".is_empty());
+    debug_assert!("".is_empty());
+    debug_assert_ne!(a!(), b!());
+    debug_assert_ne!(a!(), "".is_empty());
+    debug_assert_ne!("".is_empty(), b!());
+    debug_assert_ne!(a, true);
+    debug_assert!(b);
+
+    // assert with error messages
+    assert_eq!("a".len(), 1, "tadam {}", 1);
+    assert_eq!("a".len(), 1, "tadam {}", true);
+    assert!("a".is_empty(), "tadam {}", 1);
+    assert!("a".is_empty(), "tadam {}", true);
+    assert!("a".is_empty(), "tadam {}", true);
+    assert_eq!(a, true, "tadam {}", false);
+
+    debug_assert_eq!("a".len(), 1, "tadam {}", 1);
+    debug_assert_eq!("a".len(), 1, "tadam {}", true);
+    debug_assert!("a".is_empty(), "tadam {}", 1);
+    debug_assert!("a".is_empty(), "tadam {}", true);
+    debug_assert!("a".is_empty(), "tadam {}", true);
+    debug_assert_eq!(a, true, "tadam {}", false);
+
+    assert!(a!());
+    assert!(b!());
+
+    use debug_assert_eq as renamed;
+    renamed!(a, true);
+    debug_assert!(b);
+
+    let non_copy = NonCopy;
+    assert_eq!(non_copy, true);
+    // changing the above to `assert!(non_copy)` would cause a `borrow of moved value`
+    println!("{non_copy:?}");
+
+    macro_rules! in_macro {
+        ($v:expr) => {{
+            assert_eq!($v, true);
+        }};
+    }
+    in_macro!(a);
+}

src/tools/clippy/tests/ui/bool_assert_comparison.rs

@@ -1,3 +1,6 @@
+// run-rustfix
+
+#![allow(unused, clippy::assertions_on_constants)]
 #![warn(clippy::bool_assert_comparison)]
 
 use std::ops::Not;
@@ -15,7 +18,7 @@ macro_rules! b {
 
 // Implements the Not trait but with an output type
 // that's not bool. Should not suggest a rewrite
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 enum ImplNotTraitWithoutBool {
     VariantX(bool),
     VariantY(u32),
@@ -44,7 +47,7 @@ impl Not for ImplNotTraitWithoutBool {
 
 // This type implements the Not trait with an Output of
 // type bool. Using assert!(..) must be suggested
-#[derive(Debug)]
+#[derive(Debug, Clone, Copy)]
 struct ImplNotTraitWithBool;
 
 impl PartialEq<bool> for ImplNotTraitWithBool {
@@ -61,6 +64,23 @@ impl Not for ImplNotTraitWithBool {
     }
 }
 
+#[derive(Debug)]
+struct NonCopy;
+
+impl PartialEq<bool> for NonCopy {
+    fn eq(&self, other: &bool) -> bool {
+        false
+    }
+}
+
+impl Not for NonCopy {
+    type Output = bool;
+
+    fn not(self) -> Self::Output {
+        true
+    }
+}
+
 fn main() {
     let a = ImplNotTraitWithoutBool::VariantX(true);
     let b = ImplNotTraitWithBool;
@@ -119,4 +139,23 @@ fn main() {
     debug_assert_eq!("a".is_empty(), false, "tadam {}", true);
     debug_assert_eq!(false, "a".is_empty(), "tadam {}", true);
     debug_assert_eq!(a, true, "tadam {}", false);
+
+    assert_eq!(a!(), true);
+    assert_eq!(true, b!());
+
+    use debug_assert_eq as renamed;
+    renamed!(a, true);
+    renamed!(b, true);
+
+    let non_copy = NonCopy;
+    assert_eq!(non_copy, true);
+    // changing the above to `assert!(non_copy)` would cause a `borrow of moved value`
+    println!("{non_copy:?}");
+
+    macro_rules! in_macro {
+        ($v:expr) => {{
+            assert_eq!($v, true);
+        }};
+    }
+    in_macro!(a);
 }

src/tools/clippy/tests/ui/bool_assert_comparison.stderr

@@ -1,136 +1,303 @@
 error: used `assert_eq!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:69:5
-   |
-LL |     assert_eq!("a".is_empty(), false);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-   |
-   = note: `-D clippy::bool-assert-comparison` implied by `-D warnings`
-
-error: used `assert_eq!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:70:5
-   |
-LL |     assert_eq!("".is_empty(), true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-
-error: used `assert_eq!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:71:5
-   |
-LL |     assert_eq!(true, "".is_empty());
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-
-error: used `assert_eq!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:76:5
-   |
-LL |     assert_eq!(b, true);
-   |     ^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-
-error: used `assert_ne!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:79:5
-   |
-LL |     assert_ne!("a".is_empty(), false);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-
-error: used `assert_ne!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:80:5
-   |
-LL |     assert_ne!("".is_empty(), true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-
-error: used `assert_ne!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:81:5
-   |
-LL |     assert_ne!(true, "".is_empty());
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-
-error: used `assert_ne!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:86:5
-   |
-LL |     assert_ne!(b, true);
-   |     ^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
-
-error: used `debug_assert_eq!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:89:5
    |
-LL |     debug_assert_eq!("a".is_empty(), false);
+LL |     assert_eq!("a".is_empty(), false);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: `-D clippy::bool-assert-comparison` implied by `-D warnings`
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!("a".is_empty(), false);
+LL +     assert!("a".is_empty());
+   |
 
-error: used `debug_assert_eq!` with a literal bool
+error: used `assert_eq!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:90:5
    |
-LL |     debug_assert_eq!("".is_empty(), true);
+LL |     assert_eq!("".is_empty(), true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!("".is_empty(), true);
+LL +     assert!("".is_empty());
+   |
 
-error: used `debug_assert_eq!` with a literal bool
+error: used `assert_eq!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:91:5
    |
-LL |     debug_assert_eq!(true, "".is_empty());
+LL |     assert_eq!(true, "".is_empty());
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!(true, "".is_empty());
+LL +     assert!("".is_empty());
+   |
 
-error: used `debug_assert_eq!` with a literal bool
+error: used `assert_eq!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:96:5
    |
-LL |     debug_assert_eq!(b, true);
+LL |     assert_eq!(b, true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!(b, true);
+LL +     assert!(b);
+   |
 
-error: used `debug_assert_ne!` with a literal bool
+error: used `assert_ne!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:99:5
    |
-LL |     debug_assert_ne!("a".is_empty(), false);
+LL |     assert_ne!("a".is_empty(), false);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_ne!("a".is_empty(), false);
+LL +     assert!("a".is_empty());
+   |
 
-error: used `debug_assert_ne!` with a literal bool
+error: used `assert_ne!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:100:5
    |
-LL |     debug_assert_ne!("".is_empty(), true);
+LL |     assert_ne!("".is_empty(), true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_ne!("".is_empty(), true);
+LL +     assert!("".is_empty());
+   |
 
-error: used `debug_assert_ne!` with a literal bool
+error: used `assert_ne!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:101:5
    |
-LL |     debug_assert_ne!(true, "".is_empty());
+LL |     assert_ne!(true, "".is_empty());
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_ne!(true, "".is_empty());
+LL +     assert!("".is_empty());
+   |
 
-error: used `debug_assert_ne!` with a literal bool
+error: used `assert_ne!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:106:5
    |
-LL |     debug_assert_ne!(b, true);
+LL |     assert_ne!(b, true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_ne!(b, true);
+LL +     assert!(b);
+   |
 
-error: used `assert_eq!` with a literal bool
+error: used `debug_assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:109:5
+   |
+LL |     debug_assert_eq!("a".is_empty(), false);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_eq!("a".is_empty(), false);
+LL +     debug_assert!("a".is_empty());
+   |
+
+error: used `debug_assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:110:5
+   |
+LL |     debug_assert_eq!("".is_empty(), true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_eq!("".is_empty(), true);
+LL +     debug_assert!("".is_empty());
+   |
+
+error: used `debug_assert_eq!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:111:5
    |
-LL |     assert_eq!("a".is_empty(), false, "tadam {}", 1);
+LL |     debug_assert_eq!(true, "".is_empty());
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
-error: used `assert_eq!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:112:5
    |
-LL |     assert_eq!("a".is_empty(), false, "tadam {}", true);
+help: replace it with `debug_assert!(..)`
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
+   |
-
+LL -     debug_assert_eq!(true, "".is_empty());
-error: used `assert_eq!` with a literal bool
+LL +     debug_assert!("".is_empty());
-  --> $DIR/bool_assert_comparison.rs:113:5
    |
-LL |     assert_eq!(false, "a".is_empty(), "tadam {}", true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `assert!(..)`
 
 error: used `debug_assert_eq!` with a literal bool
-  --> $DIR/bool_assert_comparison.rs:118:5
+  --> $DIR/bool_assert_comparison.rs:116:5
+   |
+LL |     debug_assert_eq!(b, true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_eq!(b, true);
+LL +     debug_assert!(b);
    |
-LL |     debug_assert_eq!("a".is_empty(), false, "tadam {}", 1);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
 
-error: used `debug_assert_eq!` with a literal bool
+error: used `debug_assert_ne!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:119:5
    |
-LL |     debug_assert_eq!("a".is_empty(), false, "tadam {}", true);
+LL |     debug_assert_ne!("a".is_empty(), false);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_ne!("a".is_empty(), false);
+LL +     debug_assert!("a".is_empty());
+   |
 
-error: used `debug_assert_eq!` with a literal bool
+error: used `debug_assert_ne!` with a literal bool
   --> $DIR/bool_assert_comparison.rs:120:5
    |
+LL |     debug_assert_ne!("".is_empty(), true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_ne!("".is_empty(), true);
+LL +     debug_assert!("".is_empty());
+   |
+
+error: used `debug_assert_ne!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:121:5
+   |
+LL |     debug_assert_ne!(true, "".is_empty());
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_ne!(true, "".is_empty());
+LL +     debug_assert!("".is_empty());
+   |
+
+error: used `debug_assert_ne!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:126:5
+   |
+LL |     debug_assert_ne!(b, true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_ne!(b, true);
+LL +     debug_assert!(b);
+   |
+
+error: used `assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:131:5
+   |
+LL |     assert_eq!("a".is_empty(), false, "tadam {}", 1);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!("a".is_empty(), false, "tadam {}", 1);
+LL +     assert!("a".is_empty(), "tadam {}", 1);
+   |
+
+error: used `assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:132:5
+   |
+LL |     assert_eq!("a".is_empty(), false, "tadam {}", true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!("a".is_empty(), false, "tadam {}", true);
+LL +     assert!("a".is_empty(), "tadam {}", true);
+   |
+
+error: used `assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:133:5
+   |
+LL |     assert_eq!(false, "a".is_empty(), "tadam {}", true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!(false, "a".is_empty(), "tadam {}", true);
+LL +     assert!("a".is_empty(), "tadam {}", true);
+   |
+
+error: used `debug_assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:138:5
+   |
+LL |     debug_assert_eq!("a".is_empty(), false, "tadam {}", 1);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_eq!("a".is_empty(), false, "tadam {}", 1);
+LL +     debug_assert!("a".is_empty(), "tadam {}", 1);
+   |
+
+error: used `debug_assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:139:5
+   |
+LL |     debug_assert_eq!("a".is_empty(), false, "tadam {}", true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_eq!("a".is_empty(), false, "tadam {}", true);
+LL +     debug_assert!("a".is_empty(), "tadam {}", true);
+   |
+
+error: used `debug_assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:140:5
+   |
 LL |     debug_assert_eq!(false, "a".is_empty(), "tadam {}", true);
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace it with: `debug_assert!(..)`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     debug_assert_eq!(false, "a".is_empty(), "tadam {}", true);
+LL +     debug_assert!("a".is_empty(), "tadam {}", true);
+   |
 
-error: aborting due to 22 previous errors
+error: used `assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:143:5
+   |
+LL |     assert_eq!(a!(), true);
+   |     ^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!(a!(), true);
+LL +     assert!(a!());
+   |
+
+error: used `assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:144:5
+   |
+LL |     assert_eq!(true, b!());
+   |     ^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `assert!(..)`
+   |
+LL -     assert_eq!(true, b!());
+LL +     assert!(b!());
+   |
+
+error: used `debug_assert_eq!` with a literal bool
+  --> $DIR/bool_assert_comparison.rs:148:5
+   |
+LL |     renamed!(b, true);
+   |     ^^^^^^^^^^^^^^^^^
+   |
+help: replace it with `debug_assert!(..)`
+   |
+LL -     renamed!(b, true);
+LL +     debug_assert!(b);
+   |
+
+error: aborting due to 25 previous errors
 

src/tools/clippy/tests/ui/cast.rs

@@ -28,6 +28,7 @@ fn main() {
     1i32 as u8;
     1f64 as isize;
     1f64 as usize;
+    1f32 as u32 as u16;
     // Test clippy::cast_possible_wrap
     1u8 as i8;
     1u16 as i16;

src/tools/clippy/tests/ui/cast.stderr

@@ -42,13 +42,24 @@ error: casting `f32` to `i32` may truncate the value
 LL |     1f32 as i32;
    |     ^^^^^^^^^^^
    |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
    = note: `-D clippy::cast-possible-truncation` implied by `-D warnings`
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     i32::try_from(1f32);
+   |     ~~~~~~~~~~~~~~~~~~~
 
 error: casting `f32` to `u32` may truncate the value
   --> $DIR/cast.rs:25:5
    |
 LL |     1f32 as u32;
    |     ^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     u32::try_from(1f32);
+   |     ~~~~~~~~~~~~~~~~~~~
 
 error: casting `f32` to `u32` may lose the sign of the value
   --> $DIR/cast.rs:25:5
@@ -63,30 +74,60 @@ error: casting `f64` to `f32` may truncate the value
    |
 LL |     1f64 as f32;
    |     ^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     f32::try_from(1f64);
+   |     ~~~~~~~~~~~~~~~~~~~
 
 error: casting `i32` to `i8` may truncate the value
   --> $DIR/cast.rs:27:5
    |
 LL |     1i32 as i8;
    |     ^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     i8::try_from(1i32);
+   |     ~~~~~~~~~~~~~~~~~~
 
 error: casting `i32` to `u8` may truncate the value
   --> $DIR/cast.rs:28:5
    |
 LL |     1i32 as u8;
    |     ^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     u8::try_from(1i32);
+   |     ~~~~~~~~~~~~~~~~~~
 
 error: casting `f64` to `isize` may truncate the value
   --> $DIR/cast.rs:29:5
    |
 LL |     1f64 as isize;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     isize::try_from(1f64);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `f64` to `usize` may truncate the value
   --> $DIR/cast.rs:30:5
    |
 LL |     1f64 as usize;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     usize::try_from(1f64);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `f64` to `usize` may lose the sign of the value
   --> $DIR/cast.rs:30:5
@@ -94,8 +135,38 @@ error: casting `f64` to `usize` may lose the sign of the value
 LL |     1f64 as usize;
    |     ^^^^^^^^^^^^^
 
+error: casting `u32` to `u16` may truncate the value
+  --> $DIR/cast.rs:31:5
+   |
+LL |     1f32 as u32 as u16;
+   |     ^^^^^^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     u16::try_from(1f32 as u32);
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+error: casting `f32` to `u32` may truncate the value
+  --> $DIR/cast.rs:31:5
+   |
+LL |     1f32 as u32 as u16;
+   |     ^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     u32::try_from(1f32) as u16;
+   |     ~~~~~~~~~~~~~~~~~~~
+
+error: casting `f32` to `u32` may lose the sign of the value
+  --> $DIR/cast.rs:31:5
+   |
+LL |     1f32 as u32 as u16;
+   |     ^^^^^^^^^^^
+
 error: casting `u8` to `i8` may wrap around the value
-  --> $DIR/cast.rs:32:5
+  --> $DIR/cast.rs:33:5
    |
 LL |     1u8 as i8;
    |     ^^^^^^^^^
@@ -103,61 +174,79 @@ LL |     1u8 as i8;
    = note: `-D clippy::cast-possible-wrap` implied by `-D warnings`
 
 error: casting `u16` to `i16` may wrap around the value
-  --> $DIR/cast.rs:33:5
+  --> $DIR/cast.rs:34:5
    |
 LL |     1u16 as i16;
    |     ^^^^^^^^^^^
 
 error: casting `u32` to `i32` may wrap around the value
-  --> $DIR/cast.rs:34:5
+  --> $DIR/cast.rs:35:5
    |
 LL |     1u32 as i32;
    |     ^^^^^^^^^^^
 
 error: casting `u64` to `i64` may wrap around the value
-  --> $DIR/cast.rs:35:5
+  --> $DIR/cast.rs:36:5
    |
 LL |     1u64 as i64;
    |     ^^^^^^^^^^^
 
 error: casting `usize` to `isize` may wrap around the value
-  --> $DIR/cast.rs:36:5
+  --> $DIR/cast.rs:37:5
    |
 LL |     1usize as isize;
    |     ^^^^^^^^^^^^^^^
 
 error: casting `i32` to `u32` may lose the sign of the value
-  --> $DIR/cast.rs:39:5
+  --> $DIR/cast.rs:40:5
    |
 LL |     -1i32 as u32;
    |     ^^^^^^^^^^^^
 
 error: casting `isize` to `usize` may lose the sign of the value
-  --> $DIR/cast.rs:41:5
+  --> $DIR/cast.rs:42:5
    |
 LL |     -1isize as usize;
    |     ^^^^^^^^^^^^^^^^
 
 error: casting `i64` to `i8` may truncate the value
-  --> $DIR/cast.rs:108:5
+  --> $DIR/cast.rs:109:5
    |
 LL |     (-99999999999i64).min(1) as i8; // should be linted because signed
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     i8::try_from((-99999999999i64).min(1)); // should be linted because signed
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `u64` to `u8` may truncate the value
-  --> $DIR/cast.rs:120:5
+  --> $DIR/cast.rs:121:5
    |
 LL |     999999u64.clamp(0, 256) as u8; // should still be linted
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     u8::try_from(999999u64.clamp(0, 256)); // should still be linted
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `main::E2` to `u8` may truncate the value
-  --> $DIR/cast.rs:141:21
+  --> $DIR/cast.rs:142:21
    |
 LL |             let _ = self as u8;
    |                     ^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |             let _ = u8::try_from(self);
+   |                     ~~~~~~~~~~~~~~~~~~
 
 error: casting `main::E2::B` to `u8` will truncate the value
-  --> $DIR/cast.rs:142:21
+  --> $DIR/cast.rs:143:21
    |
 LL |             let _ = Self::B as u8;
    |                     ^^^^^^^^^^^^^
@@ -165,46 +254,82 @@ LL |             let _ = Self::B as u8;
    = note: `-D clippy::cast-enum-truncation` implied by `-D warnings`
 
 error: casting `main::E5` to `i8` may truncate the value
-  --> $DIR/cast.rs:178:21
+  --> $DIR/cast.rs:179:21
    |
 LL |             let _ = self as i8;
    |                     ^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |             let _ = i8::try_from(self);
+   |                     ~~~~~~~~~~~~~~~~~~
 
 error: casting `main::E5::A` to `i8` will truncate the value
-  --> $DIR/cast.rs:179:21
+  --> $DIR/cast.rs:180:21
    |
 LL |             let _ = Self::A as i8;
    |                     ^^^^^^^^^^^^^
 
 error: casting `main::E6` to `i16` may truncate the value
-  --> $DIR/cast.rs:193:21
+  --> $DIR/cast.rs:194:21
    |
 LL |             let _ = self as i16;
    |                     ^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |             let _ = i16::try_from(self);
+   |                     ~~~~~~~~~~~~~~~~~~~
 
 error: casting `main::E7` to `usize` may truncate the value on targets with 32-bit wide pointers
-  --> $DIR/cast.rs:208:21
+  --> $DIR/cast.rs:209:21
    |
 LL |             let _ = self as usize;
    |                     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |             let _ = usize::try_from(self);
+   |                     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `main::E10` to `u16` may truncate the value
-  --> $DIR/cast.rs:249:21
+  --> $DIR/cast.rs:250:21
    |
 LL |             let _ = self as u16;
    |                     ^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |             let _ = u16::try_from(self);
+   |                     ~~~~~~~~~~~~~~~~~~~
 
 error: casting `u32` to `u8` may truncate the value
-  --> $DIR/cast.rs:257:13
+  --> $DIR/cast.rs:258:13
    |
 LL |     let c = (q >> 16) as u8;
    |             ^^^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     let c = u8::try_from((q >> 16));
+   |             ~~~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `u32` to `u8` may truncate the value
-  --> $DIR/cast.rs:260:13
+  --> $DIR/cast.rs:261:13
    |
 LL |     let c = (q / 1000) as u8;
    |             ^^^^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     let c = u8::try_from((q / 1000));
+   |             ~~~~~~~~~~~~~~~~~~~~~~~~
 
-error: aborting due to 33 previous errors
+error: aborting due to 36 previous errors
 

src/tools/clippy/tests/ui/cast_size.stderr

@@ -4,7 +4,12 @@ error: casting `isize` to `i8` may truncate the value
 LL |     1isize as i8;
    |     ^^^^^^^^^^^^
    |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
    = note: `-D clippy::cast-possible-truncation` implied by `-D warnings`
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     i8::try_from(1isize);
+   |     ~~~~~~~~~~~~~~~~~~~~
 
 error: casting `isize` to `f64` causes a loss of precision on targets with 64-bit wide pointers (`isize` is 64 bits wide, but `f64`'s mantissa is only 52 bits wide)
   --> $DIR/cast_size.rs:15:5
@@ -37,24 +42,48 @@ error: casting `isize` to `i32` may truncate the value on targets with 64-bit wi
    |
 LL |     1isize as i32;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     i32::try_from(1isize);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `isize` to `u32` may truncate the value on targets with 64-bit wide pointers
   --> $DIR/cast_size.rs:20:5
    |
 LL |     1isize as u32;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     u32::try_from(1isize);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `usize` to `u32` may truncate the value on targets with 64-bit wide pointers
   --> $DIR/cast_size.rs:21:5
    |
 LL |     1usize as u32;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     u32::try_from(1usize);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `usize` to `i32` may truncate the value on targets with 64-bit wide pointers
   --> $DIR/cast_size.rs:22:5
    |
 LL |     1usize as i32;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     i32::try_from(1usize);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `usize` to `i32` may wrap around the value on targets with 32-bit wide pointers
   --> $DIR/cast_size.rs:22:5
@@ -69,18 +98,36 @@ error: casting `i64` to `isize` may truncate the value on targets with 32-bit wi
    |
 LL |     1i64 as isize;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     isize::try_from(1i64);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `i64` to `usize` may truncate the value on targets with 32-bit wide pointers
   --> $DIR/cast_size.rs:25:5
    |
 LL |     1i64 as usize;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     usize::try_from(1i64);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `u64` to `isize` may truncate the value on targets with 32-bit wide pointers
   --> $DIR/cast_size.rs:26:5
    |
 LL |     1u64 as isize;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     isize::try_from(1u64);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `u64` to `isize` may wrap around the value on targets with 64-bit wide pointers
   --> $DIR/cast_size.rs:26:5
@@ -93,6 +140,12 @@ error: casting `u64` to `usize` may truncate the value on targets with 32-bit wi
    |
 LL |     1u64 as usize;
    |     ^^^^^^^^^^^^^
+   |
+   = help: if this is intentional allow the lint with `#[allow(clippy::cast_precision_loss)]` ...
+help: ... or use `try_from` and handle the error accordingly
+   |
+LL |     usize::try_from(1u64);
+   |     ~~~~~~~~~~~~~~~~~~~~~
 
 error: casting `u32` to `isize` may wrap around the value on targets with 32-bit wide pointers
   --> $DIR/cast_size.rs:28:5

src/tools/clippy/tests/ui/module_name_repetitions.stderr

@@ -1,34 +1,34 @@
 error: item name starts with its containing module's name
-  --> $DIR/module_name_repetitions.rs:8:5
+  --> $DIR/module_name_repetitions.rs:8:12
    |
 LL |     pub fn foo_bar() {}
-   |     ^^^^^^^^^^^^^^^^^^^
+   |            ^^^^^^^
    |
    = note: `-D clippy::module-name-repetitions` implied by `-D warnings`
 
 error: item name ends with its containing module's name
-  --> $DIR/module_name_repetitions.rs:9:5
+  --> $DIR/module_name_repetitions.rs:9:12
    |
 LL |     pub fn bar_foo() {}
-   |     ^^^^^^^^^^^^^^^^^^^
+   |            ^^^^^^^
 
 error: item name starts with its containing module's name
-  --> $DIR/module_name_repetitions.rs:10:5
+  --> $DIR/module_name_repetitions.rs:10:16
    |
 LL |     pub struct FooCake;
-   |     ^^^^^^^^^^^^^^^^^^^
+   |                ^^^^^^^
 
 error: item name ends with its containing module's name
-  --> $DIR/module_name_repetitions.rs:11:5
+  --> $DIR/module_name_repetitions.rs:11:14
    |
 LL |     pub enum CakeFoo {}
-   |     ^^^^^^^^^^^^^^^^^^^
+   |              ^^^^^^^
 
 error: item name starts with its containing module's name
-  --> $DIR/module_name_repetitions.rs:12:5
+  --> $DIR/module_name_repetitions.rs:12:16
    |
 LL |     pub struct Foo7Bar;
-   |     ^^^^^^^^^^^^^^^^^^^
+   |                ^^^^^^^
 
 error: aborting due to 5 previous errors
 

src/tools/clippy/tests/ui/multiple_unsafe_ops_per_block.rs

@@ -0,0 +1,110 @@
+#![allow(unused)]
+#![allow(deref_nullptr)]
+#![allow(clippy::unnecessary_operation)]
+#![allow(clippy::drop_copy)]
+#![warn(clippy::multiple_unsafe_ops_per_block)]
+
+use core::arch::asm;
+
+fn raw_ptr() -> *const () {
+    core::ptr::null()
+}
+
+unsafe fn not_very_safe() {}
+
+struct Sample;
+
+impl Sample {
+    unsafe fn not_very_safe(&self) {}
+}
+
+#[allow(non_upper_case_globals)]
+const sample: Sample = Sample;
+
+union U {
+    i: i32,
+    u: u32,
+}
+
+static mut STATIC: i32 = 0;
+
+fn test1() {
+    unsafe {
+        STATIC += 1;
+        not_very_safe();
+    }
+}
+
+fn test2() {
+    let u = U { i: 0 };
+
+    unsafe {
+        drop(u.u);
+        *raw_ptr();
+    }
+}
+
+fn test3() {
+    unsafe {
+        asm!("nop");
+        sample.not_very_safe();
+        STATIC = 0;
+    }
+}
+
+fn test_all() {
+    let u = U { i: 0 };
+    unsafe {
+        drop(u.u);
+        drop(STATIC);
+        sample.not_very_safe();
+        not_very_safe();
+        *raw_ptr();
+        asm!("nop");
+    }
+}
+
+// no lint
+fn correct1() {
+    unsafe {
+        STATIC += 1;
+    }
+}
+
+// no lint
+fn correct2() {
+    unsafe {
+        STATIC += 1;
+    }
+
+    unsafe {
+        *raw_ptr();
+    }
+}
+
+// no lint
+fn correct3() {
+    let u = U { u: 0 };
+
+    unsafe {
+        not_very_safe();
+    }
+
+    unsafe {
+        drop(u.i);
+    }
+}
+
+// tests from the issue (https://github.com/rust-lang/rust-clippy/issues/10064)
+
+unsafe fn read_char_bad(ptr: *const u8) -> char {
+    unsafe { char::from_u32_unchecked(*ptr.cast::<u32>()) }
+}
+
+// no lint
+unsafe fn read_char_good(ptr: *const u8) -> char {
+    let int_value = unsafe { *ptr.cast::<u32>() };
+    unsafe { core::char::from_u32_unchecked(int_value) }
+}
+
+fn main() {}

src/tools/clippy/tests/ui/multiple_unsafe_ops_per_block.stderr

@@ -0,0 +1,129 @@
+error: this `unsafe` block contains 2 unsafe operations, expected only one
+  --> $DIR/multiple_unsafe_ops_per_block.rs:32:5
+   |
+LL | /     unsafe {
+LL | |         STATIC += 1;
+LL | |         not_very_safe();
+LL | |     }
+   | |_____^
+   |
+note: modification of a mutable static occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:33:9
+   |
+LL |         STATIC += 1;
+   |         ^^^^^^^^^^^
+note: unsafe function call occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:34:9
+   |
+LL |         not_very_safe();
+   |         ^^^^^^^^^^^^^^^
+   = note: `-D clippy::multiple-unsafe-ops-per-block` implied by `-D warnings`
+
+error: this `unsafe` block contains 2 unsafe operations, expected only one
+  --> $DIR/multiple_unsafe_ops_per_block.rs:41:5
+   |
+LL | /     unsafe {
+LL | |         drop(u.u);
+LL | |         *raw_ptr();
+LL | |     }
+   | |_____^
+   |
+note: union field access occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:42:14
+   |
+LL |         drop(u.u);
+   |              ^^^
+note: raw pointer dereference occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:43:9
+   |
+LL |         *raw_ptr();
+   |         ^^^^^^^^^^
+
+error: this `unsafe` block contains 3 unsafe operations, expected only one
+  --> $DIR/multiple_unsafe_ops_per_block.rs:48:5
+   |
+LL | /     unsafe {
+LL | |         asm!("nop");
+LL | |         sample.not_very_safe();
+LL | |         STATIC = 0;
+LL | |     }
+   | |_____^
+   |
+note: inline assembly used here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:49:9
+   |
+LL |         asm!("nop");
+   |         ^^^^^^^^^^^
+note: unsafe method call occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:50:9
+   |
+LL |         sample.not_very_safe();
+   |         ^^^^^^^^^^^^^^^^^^^^^^
+note: modification of a mutable static occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:51:9
+   |
+LL |         STATIC = 0;
+   |         ^^^^^^^^^^
+
+error: this `unsafe` block contains 6 unsafe operations, expected only one
+  --> $DIR/multiple_unsafe_ops_per_block.rs:57:5
+   |
+LL | /     unsafe {
+LL | |         drop(u.u);
+LL | |         drop(STATIC);
+LL | |         sample.not_very_safe();
+...  |
+LL | |         asm!("nop");
+LL | |     }
+   | |_____^
+   |
+note: union field access occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:58:14
+   |
+LL |         drop(u.u);
+   |              ^^^
+note: access of a mutable static occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:59:14
+   |
+LL |         drop(STATIC);
+   |              ^^^^^^
+note: unsafe method call occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:60:9
+   |
+LL |         sample.not_very_safe();
+   |         ^^^^^^^^^^^^^^^^^^^^^^
+note: unsafe function call occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:61:9
+   |
+LL |         not_very_safe();
+   |         ^^^^^^^^^^^^^^^
+note: raw pointer dereference occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:62:9
+   |
+LL |         *raw_ptr();
+   |         ^^^^^^^^^^
+note: inline assembly used here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:63:9
+   |
+LL |         asm!("nop");
+   |         ^^^^^^^^^^^
+
+error: this `unsafe` block contains 2 unsafe operations, expected only one
+  --> $DIR/multiple_unsafe_ops_per_block.rs:101:5
+   |
+LL |     unsafe { char::from_u32_unchecked(*ptr.cast::<u32>()) }
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+note: unsafe function call occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:101:14
+   |
+LL |     unsafe { char::from_u32_unchecked(*ptr.cast::<u32>()) }
+   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: raw pointer dereference occurs here
+  --> $DIR/multiple_unsafe_ops_per_block.rs:101:39
+   |
+LL |     unsafe { char::from_u32_unchecked(*ptr.cast::<u32>()) }
+   |                                       ^^^^^^^^^^^^^^^^^^
+
+error: aborting due to 5 previous errors
+

src/tools/clippy/tests/ui/needless_return.fixed

@@ -31,6 +31,16 @@ fn test_no_semicolon() -> bool {
     true
 }
 
+#[rustfmt::skip]
+fn test_multiple_semicolon() -> bool {
+    true
+}
+
+#[rustfmt::skip]
+fn test_multiple_semicolon_with_spaces() -> bool {
+    true
+}
+
 fn test_if_block() -> bool {
     if true {
         true

src/tools/clippy/tests/ui/needless_return.rs

@@ -31,6 +31,16 @@ fn test_no_semicolon() -> bool {
     return true;
 }
 
+#[rustfmt::skip]
+fn test_multiple_semicolon() -> bool {
+    return true;;;
+}
+
+#[rustfmt::skip]
+fn test_multiple_semicolon_with_spaces() -> bool {
+    return true;; ; ;
+}
+
 fn test_if_block() -> bool {
     if true {
         return true;

src/tools/clippy/tests/ui/needless_return.stderr

@@ -16,7 +16,23 @@ LL |     return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:36:9
+  --> $DIR/needless_return.rs:36:5
+   |
+LL |     return true;;;
+   |     ^^^^^^^^^^^
+   |
+   = help: remove `return`
+
+error: unneeded `return` statement
+  --> $DIR/needless_return.rs:41:5
+   |
+LL |     return true;; ; ;
+   |     ^^^^^^^^^^^
+   |
+   = help: remove `return`
+
+error: unneeded `return` statement
+  --> $DIR/needless_return.rs:46:9
    |
 LL |         return true;
    |         ^^^^^^^^^^^
@@ -24,7 +40,7 @@ LL |         return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:38:9
+  --> $DIR/needless_return.rs:48:9
    |
 LL |         return false;
    |         ^^^^^^^^^^^^
@@ -32,7 +48,7 @@ LL |         return false;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:44:17
+  --> $DIR/needless_return.rs:54:17
    |
 LL |         true => return false,
    |                 ^^^^^^^^^^^^
@@ -40,7 +56,7 @@ LL |         true => return false,
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:46:13
+  --> $DIR/needless_return.rs:56:13
    |
 LL |             return true;
    |             ^^^^^^^^^^^
@@ -48,7 +64,7 @@ LL |             return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:53:9
+  --> $DIR/needless_return.rs:63:9
    |
 LL |         return true;
    |         ^^^^^^^^^^^
@@ -56,7 +72,7 @@ LL |         return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:55:16
+  --> $DIR/needless_return.rs:65:16
    |
 LL |     let _ = || return true;
    |                ^^^^^^^^^^^
@@ -64,7 +80,7 @@ LL |     let _ = || return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:59:5
+  --> $DIR/needless_return.rs:69:5
    |
 LL |     return the_answer!();
    |     ^^^^^^^^^^^^^^^^^^^^
@@ -72,7 +88,7 @@ LL |     return the_answer!();
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:62:21
+  --> $DIR/needless_return.rs:72:21
    |
 LL |   fn test_void_fun() {
    |  _____________________^
@@ -82,7 +98,7 @@ LL | |     return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:67:11
+  --> $DIR/needless_return.rs:77:11
    |
 LL |       if b {
    |  ___________^
@@ -92,7 +108,7 @@ LL | |         return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:69:13
+  --> $DIR/needless_return.rs:79:13
    |
 LL |       } else {
    |  _____________^
@@ -102,7 +118,7 @@ LL | |         return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:77:14
+  --> $DIR/needless_return.rs:87:14
    |
 LL |         _ => return,
    |              ^^^^^^
@@ -110,7 +126,7 @@ LL |         _ => return,
    = help: replace `return` with a unit value
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:85:24
+  --> $DIR/needless_return.rs:95:24
    |
 LL |               let _ = 42;
    |  ________________________^
@@ -120,7 +136,7 @@ LL | |             return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:88:14
+  --> $DIR/needless_return.rs:98:14
    |
 LL |         _ => return,
    |              ^^^^^^
@@ -128,7 +144,7 @@ LL |         _ => return,
    = help: replace `return` with a unit value
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:101:9
+  --> $DIR/needless_return.rs:111:9
    |
 LL |         return String::from("test");
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -136,7 +152,7 @@ LL |         return String::from("test");
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:103:9
+  --> $DIR/needless_return.rs:113:9
    |
 LL |         return String::new();
    |         ^^^^^^^^^^^^^^^^^^^^
@@ -144,7 +160,7 @@ LL |         return String::new();
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:125:32
+  --> $DIR/needless_return.rs:135:32
    |
 LL |         bar.unwrap_or_else(|_| return)
    |                                ^^^^^^
@@ -152,7 +168,7 @@ LL |         bar.unwrap_or_else(|_| return)
    = help: replace `return` with an empty block
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:129:21
+  --> $DIR/needless_return.rs:139:21
    |
 LL |           let _ = || {
    |  _____________________^
@@ -162,7 +178,7 @@ LL | |             return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:132:20
+  --> $DIR/needless_return.rs:142:20
    |
 LL |         let _ = || return;
    |                    ^^^^^^
@@ -170,7 +186,7 @@ LL |         let _ = || return;
    = help: replace `return` with an empty block
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:138:32
+  --> $DIR/needless_return.rs:148:32
    |
 LL |         res.unwrap_or_else(|_| return Foo)
    |                                ^^^^^^^^^^
@@ -178,7 +194,7 @@ LL |         res.unwrap_or_else(|_| return Foo)
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:147:5
+  --> $DIR/needless_return.rs:157:5
    |
 LL |     return true;
    |     ^^^^^^^^^^^
@@ -186,7 +202,7 @@ LL |     return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:151:5
+  --> $DIR/needless_return.rs:161:5
    |
 LL |     return true;
    |     ^^^^^^^^^^^
@@ -194,7 +210,7 @@ LL |     return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:156:9
+  --> $DIR/needless_return.rs:166:9
    |
 LL |         return true;
    |         ^^^^^^^^^^^
@@ -202,7 +218,7 @@ LL |         return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:158:9
+  --> $DIR/needless_return.rs:168:9
    |
 LL |         return false;
    |         ^^^^^^^^^^^^
@@ -210,7 +226,7 @@ LL |         return false;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:164:17
+  --> $DIR/needless_return.rs:174:17
    |
 LL |         true => return false,
    |                 ^^^^^^^^^^^^
@@ -218,7 +234,7 @@ LL |         true => return false,
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:166:13
+  --> $DIR/needless_return.rs:176:13
    |
 LL |             return true;
    |             ^^^^^^^^^^^
@@ -226,7 +242,7 @@ LL |             return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:173:9
+  --> $DIR/needless_return.rs:183:9
    |
 LL |         return true;
    |         ^^^^^^^^^^^
@@ -234,7 +250,7 @@ LL |         return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:175:16
+  --> $DIR/needless_return.rs:185:16
    |
 LL |     let _ = || return true;
    |                ^^^^^^^^^^^
@@ -242,7 +258,7 @@ LL |     let _ = || return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:179:5
+  --> $DIR/needless_return.rs:189:5
    |
 LL |     return the_answer!();
    |     ^^^^^^^^^^^^^^^^^^^^
@@ -250,7 +266,7 @@ LL |     return the_answer!();
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:182:33
+  --> $DIR/needless_return.rs:192:33
    |
 LL |   async fn async_test_void_fun() {
    |  _________________________________^
@@ -260,7 +276,7 @@ LL | |     return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:187:11
+  --> $DIR/needless_return.rs:197:11
    |
 LL |       if b {
    |  ___________^
@@ -270,7 +286,7 @@ LL | |         return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:189:13
+  --> $DIR/needless_return.rs:199:13
    |
 LL |       } else {
    |  _____________^
@@ -280,7 +296,7 @@ LL | |         return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:197:14
+  --> $DIR/needless_return.rs:207:14
    |
 LL |         _ => return,
    |              ^^^^^^
@@ -288,7 +304,7 @@ LL |         _ => return,
    = help: replace `return` with a unit value
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:210:9
+  --> $DIR/needless_return.rs:220:9
    |
 LL |         return String::from("test");
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -296,7 +312,7 @@ LL |         return String::from("test");
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:212:9
+  --> $DIR/needless_return.rs:222:9
    |
 LL |         return String::new();
    |         ^^^^^^^^^^^^^^^^^^^^
@@ -304,7 +320,7 @@ LL |         return String::new();
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:228:5
+  --> $DIR/needless_return.rs:238:5
    |
 LL |     return format!("Hello {}", "world!");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -312,7 +328,7 @@ LL |     return format!("Hello {}", "world!");
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:239:9
+  --> $DIR/needless_return.rs:249:9
    |
 LL |         return true;
    |         ^^^^^^^^^^^
@@ -320,7 +336,7 @@ LL |         return true;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:241:9
+  --> $DIR/needless_return.rs:251:9
    |
 LL |         return false;
    |         ^^^^^^^^^^^^
@@ -328,7 +344,7 @@ LL |         return false;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:248:13
+  --> $DIR/needless_return.rs:258:13
    |
 LL |             return 10;
    |             ^^^^^^^^^
@@ -336,7 +352,7 @@ LL |             return 10;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:251:13
+  --> $DIR/needless_return.rs:261:13
    |
 LL |             return 100;
    |             ^^^^^^^^^^
@@ -344,7 +360,7 @@ LL |             return 100;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:259:9
+  --> $DIR/needless_return.rs:269:9
    |
 LL |         return 0;
    |         ^^^^^^^^
@@ -352,7 +368,7 @@ LL |         return 0;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:266:13
+  --> $DIR/needless_return.rs:276:13
    |
 LL |             return *(x as *const isize);
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -360,7 +376,7 @@ LL |             return *(x as *const isize);
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:268:13
+  --> $DIR/needless_return.rs:278:13
    |
 LL |             return !*(x as *const isize);
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -368,7 +384,7 @@ LL |             return !*(x as *const isize);
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:275:20
+  --> $DIR/needless_return.rs:285:20
    |
 LL |           let _ = 42;
    |  ____________________^
@@ -379,7 +395,7 @@ LL | |         return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:282:20
+  --> $DIR/needless_return.rs:292:20
    |
 LL |         let _ = 42; return;
    |                    ^^^^^^^
@@ -387,7 +403,7 @@ LL |         let _ = 42; return;
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:294:9
+  --> $DIR/needless_return.rs:304:9
    |
 LL |         return Ok(format!("ok!"));
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -395,12 +411,12 @@ LL |         return Ok(format!("ok!"));
    = help: remove `return`
 
 error: unneeded `return` statement
-  --> $DIR/needless_return.rs:296:9
+  --> $DIR/needless_return.rs:306:9
    |
 LL |         return Err(format!("err!"));
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = help: remove `return`
 
-error: aborting due to 48 previous errors
+error: aborting due to 50 previous errors
 

src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.fixed

@@ -51,6 +51,8 @@ fn main() {
     // e is a function pointer type and U is an integer; fptr-addr-cast
     let _usize_from_fn_ptr_transmute = unsafe { foo as usize };
     let _usize_from_fn_ptr = foo as *const usize;
+
+    let _usize_from_ref = unsafe { &1u32 as *const u32 as usize };
 }
 
 // If a ref-to-ptr cast of this form where the pointer type points to a type other

src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.rs

@@ -51,6 +51,8 @@ fn main() {
     // e is a function pointer type and U is an integer; fptr-addr-cast
     let _usize_from_fn_ptr_transmute = unsafe { transmute::<fn(usize) -> u8, usize>(foo) };
     let _usize_from_fn_ptr = foo as *const usize;
+
+    let _usize_from_ref = unsafe { transmute::<*const u32, usize>(&1u32) };
 }
 
 // If a ref-to-ptr cast of this form where the pointer type points to a type other

src/tools/clippy/tests/ui/transmutes_expressible_as_ptr_casts.stderr

@@ -46,11 +46,17 @@ error: transmute from `fn(usize) -> u8` to `usize` which could be expressed as a
 LL |     let _usize_from_fn_ptr_transmute = unsafe { transmute::<fn(usize) -> u8, usize>(foo) };
    |                                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `foo as usize`
 
+error: transmute from `*const u32` to `usize` which could be expressed as a pointer cast instead
+  --> $DIR/transmutes_expressible_as_ptr_casts.rs:55:36
+   |
+LL |     let _usize_from_ref = unsafe { transmute::<*const u32, usize>(&1u32) };
+   |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `&1u32 as *const u32 as usize`
+
 error: transmute from a reference to a pointer
-  --> $DIR/transmutes_expressible_as_ptr_casts.rs:64:14
+  --> $DIR/transmutes_expressible_as_ptr_casts.rs:66:14
    |
 LL |     unsafe { transmute::<&[i32; 1], *const u8>(in_param) }
    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `in_param as *const [i32; 1] as *const u8`
 
-error: aborting due to 8 previous errors
+error: aborting due to 9 previous errors
 

src/tools/clippy/tests/ui/unnecessary_safety_comment.rs

@@ -48,4 +48,21 @@ fn unnecessary_on_stmt_and_expr() -> u32 {
     24
 }
 
+mod issue_10084 {
+    unsafe fn bar() -> i32 {
+        42
+    }
+
+    macro_rules! foo {
+        () => {
+            // SAFETY: This is necessary
+            unsafe { bar() }
+        };
+    }
+
+    fn main() {
+        foo!();
+    }
+}
+
 fn main() {}