Merge remote-tracking branch 'upstream/master' into rustup

Author: flip1995

CHANGELOG.md

@@ -6,11 +6,56 @@ document.
 
 ## Unreleased / Beta / In Rust Nightly
 
-[0f8eabd6...master](https://github.com/rust-lang/rust-clippy/compare/0f8eabd6...master)
+[aa0d5513...master](https://github.com/rust-lang/rust-clippy/compare/aa0d5513...master)
+
+## Rust 1.83
+
+Current stable, released 2024-11-28
+
+[View all 64 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2024-08-25T09%3A59%3A01Z..2024-10-03T13%3A42%3A56Z+base%3Amaster)
+
+### Important Change
+
+* Removed the implicit `cargo-clippy` feature set by Clippy as announced here:
+  <https://blog.rust-lang.org/2024/02/28/Clippy-deprecating-feature-cargo-clippy.html>
+  [#13246](https://github.com/rust-lang/rust-clippy/pull/13246)
+
+### New Lints
+
+* Added [`unused_trait_names`] to `restriction`
+  [#13322](https://github.com/rust-lang/rust-clippy/pull/13322)
+* Added [`unnecessary_first_then_check`] to `complexity`
+  [#13421](https://github.com/rust-lang/rust-clippy/pull/13421)
+* Added [`non_zero_suggestions`] to `restriction`
+  [#13167](https://github.com/rust-lang/rust-clippy/pull/13167)
+* Added [`manual_is_power_of_two`] to `pedantic`
+  [#13327](https://github.com/rust-lang/rust-clippy/pull/13327)
+* Added [`manual_div_ceil`] to `complexity`
+  [#12987](https://github.com/rust-lang/rust-clippy/pull/12987)
+* Added [`zombie_processes`] to `suspicious`
+  [#11476](https://github.com/rust-lang/rust-clippy/pull/11476)
+* Added [`used_underscore_items`] to `pedantic`
+  [#13294](https://github.com/rust-lang/rust-clippy/pull/13294)
+
+### Moves and Deprecations
+
+* Moved [`ref_option`] to `pedantic` (From `nursery`)
+  [#13469](https://github.com/rust-lang/rust-clippy/pull/13469)
+* Moved [`manual_c_str_literals`] to `complexity` (From `pedantic`, now warn-by-default)
+  [#13263](https://github.com/rust-lang/rust-clippy/pull/13263)
+* Moved [`empty_line_after_doc_comments`] to `suspicious` (From `nursery`, now warn-by-default)
+  [#13091](https://github.com/rust-lang/rust-clippy/pull/13091)
+* Moved [`empty_line_after_outer_attr`] to `suspicious` (From `nursery`, now warn-by-default)
+  [#13091](https://github.com/rust-lang/rust-clippy/pull/13091)
+
+### Enhancements
+
+* [`missing_panics_doc`]: No longer lints in const environments
+  [#13382](https://github.com/rust-lang/rust-clippy/pull/13382)
 
 ## Rust 1.82
 
-Current stable, released 2024-10-17
+Released 2024-10-17
 
 [View all 108 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2024-07-11T20%3A12%3A07Z..2024-08-24T20%3A55%3A35Z+base%3Amaster)
 
@@ -5441,6 +5486,7 @@ Released 2018-09-13
 [`disallowed_type`]: https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_type
 [`disallowed_types`]: https://rust-lang.github.io/rust-clippy/master/index.html#disallowed_types
 [`diverging_sub_expression`]: https://rust-lang.github.io/rust-clippy/master/index.html#diverging_sub_expression
+[`doc_include_without_cfg`]: https://rust-lang.github.io/rust-clippy/master/index.html#doc_include_without_cfg
 [`doc_lazy_continuation`]: https://rust-lang.github.io/rust-clippy/master/index.html#doc_lazy_continuation
 [`doc_link_with_quotes`]: https://rust-lang.github.io/rust-clippy/master/index.html#doc_link_with_quotes
 [`doc_markdown`]: https://rust-lang.github.io/rust-clippy/master/index.html#doc_markdown

Cargo.toml

@@ -1,6 +1,8 @@
 [package]
 name = "clippy"
+# begin autogenerated version
 version = "0.1.84"
+# end autogenerated version
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
@@ -69,3 +71,10 @@ harness = false
 [[test]]
 name = "dogfood"
 harness = false
+
+# quine-mc_cluskey makes up a significant part of the runtime in dogfood
+# due to the number of conditions in the clippy_lints crate
+# and enabling optimizations for that specific dependency helps a bit
+# without increasing total build times.
+[profile.dev.package.quine-mc_cluskey]
+opt-level = 3

book/src/SUMMARY.md

@@ -7,6 +7,7 @@
 - [Configuration](configuration.md)
     - [Lint Configuration](lint_configuration.md)
 - [Clippy's Lints](lints.md)
+- [Attributes for Crate Authors](attribs.md)
 - [Continuous Integration](continuous_integration/README.md)
     - [GitHub Actions](continuous_integration/github_actions.md)
     - [GitLab CI](continuous_integration/gitlab.md)

book/src/attribs.md

@@ -0,0 +1,53 @@
+# Attributes for Crate Authors
+
+In some cases it is possible to extend Clippy coverage to 3rd party libraries.
+To do this, Clippy provides attributes that can be applied to items in the 3rd party crate.
+
+## `#[clippy::format_args]`
+
+_Available since Clippy v1.84_
+
+This attribute can be added to a macro that supports `format!`, `println!`, or similar syntax.
+It tells Clippy that the macro is a formatting macro, and that the arguments to the macro
+should be linted as if they were arguments to `format!`. Any lint that would apply to a
+`format!` call will also apply to the macro call. The macro may have additional arguments
+before the format string, and these will be ignored.
+
+### Example
+
+```rust
+/// A macro that prints a message if a condition is true.
+#[macro_export]
+#[clippy::format_args]
+macro_rules! print_if {
+    ($condition:expr, $($args:tt)+) => {{
+        if $condition {
+            println!($($args)+)
+        }
+    }};
+}
+```
+
+## `#[clippy::has_significant_drop]`
+
+_Available since Clippy v1.60_
+
+The `clippy::has_significant_drop` attribute can be added to types whose Drop impls have an important side effect,
+such as unlocking a mutex, making it important for users to be able to accurately understand their lifetimes.
+When a temporary is returned in a function call in a match scrutinee, its lifetime lasts until the end of the match
+block, which may be surprising.
+
+### Example
+
+```rust
+#[clippy::has_significant_drop]
+struct CounterWrapper<'a> {
+    counter: &'a Counter,
+}
+
+impl<'a> Drop for CounterWrapper<'a> {
+    fn drop(&mut self) {
+        self.counter.i.fetch_sub(1, Ordering::Relaxed);
+    }
+}
+```

book/src/development/adding_lints.md

@@ -438,7 +438,7 @@ need to ensure that the MSRV configured for the project is >= the MSRV of the
 required Rust feature. If multiple features are required, just use the one with
 a lower MSRV.
 
-First, add an MSRV alias for the required feature in [`clippy_config::msrvs`].
+First, add an MSRV alias for the required feature in [`clippy_utils::msrvs`].
 This can be accessed later as `msrvs::STR_STRIP_PREFIX`, for example.
 
 ```rust
@@ -517,7 +517,7 @@ define_Conf! {
 }
 ```
 
-[`clippy_config::msrvs`]: https://doc.rust-lang.org/nightly/nightly-rustc/clippy_config/msrvs/index.html
+[`clippy_utils::msrvs`]: https://doc.rust-lang.org/nightly/nightly-rustc/clippy_config/msrvs/index.html
 
 Afterwards update the documentation for the book as described in [Adding configuration to a lint](#adding-configuration-to-a-lint).
 

book/src/lint_configuration.md

@@ -895,7 +895,7 @@ The order of associated items in traits.
 
 ## `trivial-copy-size-limit`
 The maximum size (in bytes) to consider a `Copy` type for passing by value instead of by
-reference. By default there is no limit
+reference.
 
 **Default Value:** `target_pointer_width * 2`
 

clippy_config/Cargo.toml

@@ -1,11 +1,15 @@
 [package]
 name = "clippy_config"
+# begin autogenerated version
 version = "0.1.84"
+# end autogenerated version
 edition = "2021"
+publish = false
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+clippy_utils = { path = "../clippy_utils" }
 itertools = "0.12"
 serde = { version = "1.0", features = ["derive"] }
 toml = "0.7.3"

clippy_config/src/conf.rs

@@ -1,10 +1,10 @@
 use crate::ClippyConfiguration;
-use crate::msrvs::Msrv;
 use crate::types::{
     DisallowedPath, MacroMatcher, MatchLintBehaviour, PubUnderscoreFieldsBehaviour, Rename, SourceItemOrdering,
     SourceItemOrderingCategory, SourceItemOrderingModuleItemGroupings, SourceItemOrderingModuleItemKind,
     SourceItemOrderingTraitAssocItemKind, SourceItemOrderingTraitAssocItemKinds,
 };
+use clippy_utils::msrvs::Msrv;
 use rustc_errors::Applicability;
 use rustc_session::Session;
 use rustc_span::edit_distance::edit_distance;
@@ -181,7 +181,7 @@ macro_rules! define_Conf {
     )*) => {
         /// Clippy lint configuration
         pub struct Conf {
-            $($(#[doc = $doc])+ pub $name: $ty,)*
+            $($(#[cfg_attr(doc, doc = $doc)])+ pub $name: $ty,)*
         }
 
         mod defaults {
@@ -678,7 +678,7 @@ define_Conf! {
     #[lints(arbitrary_source_item_ordering)]
     trait_assoc_item_kinds_order: SourceItemOrderingTraitAssocItemKinds = DEFAULT_TRAIT_ASSOC_ITEM_KINDS_ORDER.into(),
     /// The maximum size (in bytes) to consider a `Copy` type for passing by value instead of by
-    /// reference. By default there is no limit
+    /// reference.
     #[default_text = "target_pointer_width * 2"]
     #[lints(trivially_copy_pass_by_ref)]
     trivial_copy_size_limit: Option<u64> = None,

clippy_config/src/lib.rs

@@ -13,18 +13,14 @@
     rustc::untranslatable_diagnostic
 )]
 
-extern crate rustc_ast;
-extern crate rustc_attr;
-#[allow(unused_extern_crates)]
-extern crate rustc_driver;
 extern crate rustc_errors;
+extern crate rustc_hir;
+extern crate rustc_middle;
 extern crate rustc_session;
 extern crate rustc_span;
-extern crate smallvec;
 
 mod conf;
 mod metadata;
-pub mod msrvs;
 pub mod types;
 
 pub use conf::{Conf, get_configuration_metadata, lookup_conf_file, sanitize_explanation};

clippy_config/src/types.rs

@@ -1,3 +1,6 @@
+use clippy_utils::def_path_def_ids;
+use rustc_hir::def_id::DefIdMap;
+use rustc_middle::ty::TyCtxt;
 use serde::de::{self, Deserializer, Visitor};
 use serde::{Deserialize, Serialize, ser};
 use std::collections::HashMap;
@@ -31,6 +34,18 @@ impl DisallowedPath {
     }
 }
 
+/// Creates a map of disallowed items to the reason they were disallowed.
+pub fn create_disallowed_map(
+    tcx: TyCtxt<'_>,
+    disallowed: &'static [DisallowedPath],
+) -> DefIdMap<(&'static str, Option<&'static str>)> {
+    disallowed
+        .iter()
+        .map(|x| (x.path(), x.path().split("::").collect::<Vec<_>>(), x.reason()))
+        .flat_map(|(name, path, reason)| def_path_def_ids(tcx, &path).map(move |id| (id, (name, reason))))
+        .collect()
+}
+
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Deserialize, Serialize)]
 pub enum MatchLintBehaviour {
     AllTypes,