Merge commit 'b105fb4c39bc1a010807a6c076193cef8d93c109' into clippyup

Author: flip1995

src/tools/clippy/CHANGELOG.md

@@ -6,11 +6,101 @@ document.
 
 ## Unreleased / Beta / In Rust Nightly
 
-[37f4c172...master](https://github.com/rust-lang/rust-clippy/compare/37f4c172...master)
+[1e8fdf49...master](https://github.com/rust-lang/rust-clippy/compare/1e8fdf49...master)
+
+## Rust 1.73
+
+Current stable, released 2023-10-05
+
+[View all 103 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2023-07-02T12%3A24%3A40Z..2023-08-11T11%3A09%3A56Z+base%3Amaster)
+
+### New Lints
+
+* [`impossible_comparisons`]
+  [#10843](https://github.com/rust-lang/rust-clippy/pull/10843)
+* [`redundant_comparisons`]
+  [#10843](https://github.com/rust-lang/rust-clippy/pull/10843)
+* [`ignored_unit_patterns`]
+  [#11242](https://github.com/rust-lang/rust-clippy/pull/11242)
+* [`readonly_write_lock`]
+  [#11210](https://github.com/rust-lang/rust-clippy/pull/11210)
+* [`filter_map_bool_then`]
+  [#11115](https://github.com/rust-lang/rust-clippy/pull/11115)
+* [`needless_return_with_question_mark`]
+  [#11031](https://github.com/rust-lang/rust-clippy/pull/11031)
+* [`redundant_guards`]
+  [#10955](https://github.com/rust-lang/rust-clippy/pull/10955)
+* [`redundant_locals`]
+  [#10885](https://github.com/rust-lang/rust-clippy/pull/10885)
+* [`absolute_paths`]
+  [#11003](https://github.com/rust-lang/rust-clippy/pull/11003)
+* [`error_impl_error`]
+  [#11107](https://github.com/rust-lang/rust-clippy/pull/11107)
+* [`iter_skip_zero`]
+  [#11046](https://github.com/rust-lang/rust-clippy/pull/11046)
+* [`string_lit_chars_any`]
+  [#11052](https://github.com/rust-lang/rust-clippy/pull/11052)
+* [`four_forward_slashes`]
+  [#11140](https://github.com/rust-lang/rust-clippy/pull/11140)
+* [`format_collect`]
+  [#11116](https://github.com/rust-lang/rust-clippy/pull/11116)
+* [`needless_pass_by_ref_mut`]
+  [#10900](https://github.com/rust-lang/rust-clippy/pull/10900)
+* [`manual_is_infinite`]
+  [#11049](https://github.com/rust-lang/rust-clippy/pull/11049)
+* [`manual_is_finite`]
+  [#11049](https://github.com/rust-lang/rust-clippy/pull/11049)
+* [`incorrect_partial_ord_impl_on_ord_type`]
+  [#10788](https://github.com/rust-lang/rust-clippy/pull/10788)
+* [`read_line_without_trim`]
+  [#10970](https://github.com/rust-lang/rust-clippy/pull/10970)
+* [`type_id_on_box`]
+  [#10987](https://github.com/rust-lang/rust-clippy/pull/10987)
+
+### Moves and Deprecations
+
+* Renamed `unwrap_or_else_default` to [`unwrap_or_default`]
+  [#10120](https://github.com/rust-lang/rust-clippy/pull/10120)
+* Moved [`tuple_array_conversions`] to `pedantic` (Now allow-by-default)
+  [#11146](https://github.com/rust-lang/rust-clippy/pull/11146)
+* Moved [`arc_with_non_send_sync`] to `suspicious` (Now warn-by-default)
+  [#11104](https://github.com/rust-lang/rust-clippy/pull/11104)
+* Moved [`needless_raw_string_hashes`] to `pedantic` (Now allow-by-default)
+  [#11415](https://github.com/rust-lang/rust-clippy/pull/11415)
+
+### Enhancements
+
+* [`unwrap_used`]: No longer lints on the never-type or never-like enums
+  [#11252](https://github.com/rust-lang/rust-clippy/pull/11252)
+* [`expect_used`]: No longer lints on the never-type or never-like enums
+  [#11252](https://github.com/rust-lang/rust-clippy/pull/11252)
+
+### False Positive Fixes
+
+* [`panic_in_result_fn`]: No longer triggers on `todo!`, `unimplemented!`, `unreachable!`
+  [#11123](https://github.com/rust-lang/rust-clippy/pull/11123)
+
+### Suggestion Fixes/Improvements
+
+* [`semicolon_if_nothing_returned`]: The suggestion is now machine-applicable with rustfix
+  [#11083](https://github.com/rust-lang/rust-clippy/pull/11083)
+
+### ICE Fixes
+
+* [`filter_map_bool_then`]: No longer crashes on late-bound regions
+  [#11318](https://github.com/rust-lang/rust-clippy/pull/11318)
+* [`unwrap_or_default`]: No longer crashes on alias types for local items
+  [#11258](https://github.com/rust-lang/rust-clippy/pull/11258)
+* [`unnecessary_literal_unwrap`]: No longer crashes on `None.unwrap_or_default()`
+  [#11106](https://github.com/rust-lang/rust-clippy/pull/11106)
+* Fixed MIR-related ICE
+  [#11130](https://github.com/rust-lang/rust-clippy/pull/11130)
+* [`missing_fields_in_debug`]: No longer crashes on non-ADT self types
+  [#11069](https://github.com/rust-lang/rust-clippy/pull/11069)
 
 ## Rust 1.72
 
-Current stable, released 2023-08-24
+Released 2023-08-24
 
 [View all 131 merged pull requests](https://github.com/rust-lang/rust-clippy/pulls?q=merged%3A2023-05-22T14%3A53%3A59Z..2023-07-01T22%3A57%3A20Z+base%3Amaster)
 
@@ -5011,6 +5101,7 @@ Released 2018-09-13
 [`integer_division`]: https://rust-lang.github.io/rust-clippy/master/index.html#integer_division
 [`into_iter_on_array`]: https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_array
 [`into_iter_on_ref`]: https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_on_ref
+[`into_iter_without_iter`]: https://rust-lang.github.io/rust-clippy/master/index.html#into_iter_without_iter
 [`invalid_atomic_ordering`]: https://rust-lang.github.io/rust-clippy/master/index.html#invalid_atomic_ordering
 [`invalid_null_ptr_usage`]: https://rust-lang.github.io/rust-clippy/master/index.html#invalid_null_ptr_usage
 [`invalid_ref`]: https://rust-lang.github.io/rust-clippy/master/index.html#invalid_ref
@@ -5036,6 +5127,7 @@ Released 2018-09-13
 [`iter_skip_next`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_next
 [`iter_skip_zero`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_skip_zero
 [`iter_with_drain`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_with_drain
+[`iter_without_into_iter`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_without_into_iter
 [`iterator_step_by_zero`]: https://rust-lang.github.io/rust-clippy/master/index.html#iterator_step_by_zero
 [`just_underscores_and_digits`]: https://rust-lang.github.io/rust-clippy/master/index.html#just_underscores_and_digits
 [`large_const_arrays`]: https://rust-lang.github.io/rust-clippy/master/index.html#large_const_arrays
@@ -5072,6 +5164,7 @@ Released 2018-09-13
 [`manual_find`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_find
 [`manual_find_map`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_find_map
 [`manual_flatten`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_flatten
+[`manual_hash_one`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_hash_one
 [`manual_instant_elapsed`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_instant_elapsed
 [`manual_is_ascii_check`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_ascii_check
 [`manual_is_finite`]: https://rust-lang.github.io/rust-clippy/master/index.html#manual_is_finite

src/tools/clippy/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy"
-version = "0.1.74"
+version = "0.1.75"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
@@ -25,6 +25,8 @@ clippy_lints = { path = "clippy_lints" }
 rustc_tools_util = "0.3.0"
 tempfile = { version = "3.2", optional = true }
 termize = "0.1"
+color-print = "0.3.4" # Sync version with Cargo
+anstream = "0.5.0"
 
 [dev-dependencies]
 ui_test = "0.20"

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

@@ -261,7 +261,7 @@ impl EarlyLintPass for FooFunctions {}
 [declare_clippy_lint]: https://github.com/rust-lang/rust-clippy/blob/557f6848bd5b7183f55c1e1522a326e9e1df6030/clippy_lints/src/lib.rs#L60
 [example_lint_page]: https://rust-lang.github.io/rust-clippy/master/index.html#redundant_closure
 [lint_naming]: https://rust-lang.github.io/rfcs/0344-conventions-galore.html#lints
-[category_level_mapping]: https://github.com/rust-lang/rust-clippy/blob/557f6848bd5b7183f55c1e1522a326e9e1df6030/clippy_lints/src/lib.rs#L110
+[category_level_mapping]: ../index.html
 
 ## Lint registration
 

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

@@ -151,6 +151,7 @@ The minimum rust version that the project supports
 * [`type_repetition_in_bounds`](https://rust-lang.github.io/rust-clippy/master/index.html#type_repetition_in_bounds)
 * [`tuple_array_conversions`](https://rust-lang.github.io/rust-clippy/master/index.html#tuple_array_conversions)
 * [`manual_try_fold`](https://rust-lang.github.io/rust-clippy/master/index.html#manual_try_fold)
+* [`manual_hash_one`](https://rust-lang.github.io/rust-clippy/master/index.html#manual_hash_one)
 
 
 ## `cognitive-complexity-threshold`

src/tools/clippy/clippy_dev/src/new_lint.rs

@@ -58,7 +58,7 @@ pub fn create(
     };
 
     create_lint(&lint, msrv).context("Unable to create lint implementation")?;
-    create_test(&lint).context("Unable to create a test for the new lint")?;
+    create_test(&lint, msrv).context("Unable to create a test for the new lint")?;
 
     if lint.ty.is_none() {
         add_lint(&lint, msrv).context("Unable to add lint to clippy_lints/src/lib.rs")?;
@@ -88,15 +88,21 @@ fn create_lint(lint: &LintData<'_>, enable_msrv: bool) -> io::Result<()> {
     }
 }
 
-fn create_test(lint: &LintData<'_>) -> io::Result<()> {
-    fn create_project_layout<P: Into<PathBuf>>(lint_name: &str, location: P, case: &str, hint: &str) -> io::Result<()> {
+fn create_test(lint: &LintData<'_>, msrv: bool) -> io::Result<()> {
+    fn create_project_layout<P: Into<PathBuf>>(
+        lint_name: &str,
+        location: P,
+        case: &str,
+        hint: &str,
+        msrv: bool,
+    ) -> io::Result<()> {
         let mut path = location.into().join(case);
         fs::create_dir(&path)?;
         write_file(path.join("Cargo.toml"), get_manifest_contents(lint_name, hint))?;
 
         path.push("src");
         fs::create_dir(&path)?;
-        write_file(path.join("main.rs"), get_test_file_contents(lint_name))?;
+        write_file(path.join("main.rs"), get_test_file_contents(lint_name, msrv))?;
 
         Ok(())
     }
@@ -106,13 +112,25 @@ fn create_test(lint: &LintData<'_>) -> io::Result<()> {
         let test_dir = lint.project_root.join(&relative_test_dir);
         fs::create_dir(&test_dir)?;
 
-        create_project_layout(lint.name, &test_dir, "fail", "Content that triggers the lint goes here")?;
-        create_project_layout(lint.name, &test_dir, "pass", "This file should not trigger the lint")?;
+        create_project_layout(
+            lint.name,
+            &test_dir,
+            "fail",
+            "Content that triggers the lint goes here",
+            msrv,
+        )?;
+        create_project_layout(
+            lint.name,
+            &test_dir,
+            "pass",
+            "This file should not trigger the lint",
+            false,
+        )?;
 
         println!("Generated test directories: `{relative_test_dir}/pass`, `{relative_test_dir}/fail`");
     } else {
         let test_path = format!("tests/ui/{}.rs", lint.name);
-        let test_contents = get_test_file_contents(lint.name);
+        let test_contents = get_test_file_contents(lint.name, msrv);
         write_file(lint.project_root.join(&test_path), test_contents)?;
 
         println!("Generated test file: `{test_path}`");
@@ -194,16 +212,38 @@ pub(crate) fn get_stabilization_version() -> String {
     parse_manifest(&contents).expect("Unable to find package version in `Cargo.toml`")
 }
 
-fn get_test_file_contents(lint_name: &str) -> String {
-    formatdoc!(
+fn get_test_file_contents(lint_name: &str, msrv: bool) -> String {
+    let mut test = formatdoc!(
         r#"
         #![warn(clippy::{lint_name})]
 
         fn main() {{
             // test code goes here
         }}
     "#
-    )
+    );
+
+    if msrv {
+        let _ = writedoc!(
+            test,
+            r#"
+
+                // TODO: set xx to the version one below the MSRV used by the lint, and yy to
+                // the version used by the lint
+                #[clippy::msrv = "1.xx"]
+                fn msrv_1_xx() {{
+                    // a simple example that would trigger the lint if the MSRV were met
+                }}
+
+                #[clippy::msrv = "1.yy"]
+                fn msrv_1_yy() {{
+                    // the same example as above
+                }}
+            "#
+        );
+    }
+
+    test
 }
 
 fn get_manifest_contents(lint_name: &str, hint: &str) -> String {
@@ -258,7 +298,7 @@ fn get_lint_file_contents(lint: &LintData<'_>, enable_msrv: bool) -> String {
         )
     });
 
-    let _: fmt::Result = write!(result, "{}", get_lint_declaration(&name_upper, category));
+    let _: fmt::Result = writeln!(result, "{}", get_lint_declaration(&name_upper, category));
 
     result.push_str(&if enable_msrv {
         formatdoc!(
@@ -281,7 +321,6 @@ fn get_lint_file_contents(lint: &LintData<'_>, enable_msrv: bool) -> String {
             }}
 
             // TODO: Add MSRV level to `clippy_utils/src/msrvs.rs` if needed.
-            // TODO: Add MSRV test to `tests/ui/min_rust_version_attr.rs`.
             // TODO: Update msrv config comment in `clippy_lints/src/utils/conf.rs`
         "#
         )

src/tools/clippy/clippy_lints/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "clippy_lints"
-version = "0.1.74"
+version = "0.1.75"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
@@ -28,6 +28,9 @@ semver = "1.0"
 rustc-semver = "1.1"
 url = "2.2"
 
+[dev-dependencies]
+walkdir = "2.3"
+
 [features]
 deny-warnings = ["clippy_utils/deny-warnings"]
 # build clippy with internal lints enabled, off by default

src/tools/clippy/clippy_lints/src/allow_attributes.rs

@@ -8,6 +8,7 @@ use rustc_middle::lint::in_external_macro;
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 
 declare_clippy_lint! {
+    /// ### What it does
     /// Checks for usage of the `#[allow]` attribute and suggests replacing it with
     /// the `#[expect]` (See [RFC 2383](https://rust-lang.github.io/rfcs/2383-lint-reasons.html))
     ///
@@ -19,7 +20,6 @@ declare_clippy_lint! {
     /// (`#![allow]`) are usually used to enable or disable lints on a global scale.
     ///
     /// ### Why is this bad?
-    ///
     /// `#[expect]` attributes suppress the lint emission, but emit a warning, if
     /// the expectation is unfulfilled. This can be useful to be notified when the
     /// lint is no longer triggered.

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

@@ -229,6 +229,8 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::items_after_statements::ITEMS_AFTER_STATEMENTS_INFO,
     crate::items_after_test_module::ITEMS_AFTER_TEST_MODULE_INFO,
     crate::iter_not_returning_iterator::ITER_NOT_RETURNING_ITERATOR_INFO,
+    crate::iter_without_into_iter::INTO_ITER_WITHOUT_ITER_INFO,
+    crate::iter_without_into_iter::ITER_WITHOUT_INTO_ITER_INFO,
     crate::large_const_arrays::LARGE_CONST_ARRAYS_INFO,
     crate::large_enum_variant::LARGE_ENUM_VARIANT_INFO,
     crate::large_futures::LARGE_FUTURES_INFO,
@@ -280,6 +282,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[
     crate::manual_clamp::MANUAL_CLAMP_INFO,
     crate::manual_float_methods::MANUAL_IS_FINITE_INFO,
     crate::manual_float_methods::MANUAL_IS_INFINITE_INFO,
+    crate::manual_hash_one::MANUAL_HASH_ONE_INFO,
     crate::manual_is_ascii_check::MANUAL_IS_ASCII_CHECK_INFO,
     crate::manual_let_else::MANUAL_LET_ELSE_INFO,
     crate::manual_main_separator_str::MANUAL_MAIN_SEPARATOR_STR_INFO,

src/tools/clippy/clippy_lints/src/enum_clike.rs

@@ -1,7 +1,7 @@
 //! lint on C-like enums that are `repr(isize/usize)` and have values that
 //! don't fit into an `i32`
 
-use clippy_utils::consts::{miri_to_const, Constant};
+use clippy_utils::consts::{mir_to_const, Constant};
 use clippy_utils::diagnostics::span_lint;
 use rustc_hir::{Item, ItemKind};
 use rustc_lint::{LateContext, LateLintPass};
@@ -51,7 +51,7 @@ impl<'tcx> LateLintPass<'tcx> for UnportableVariant {
                         .const_eval_poly(def_id.to_def_id())
                         .ok()
                         .map(|val| rustc_middle::mir::Const::from_value(val, ty));
-                    if let Some(Constant::Int(val)) = constant.and_then(|c| miri_to_const(cx, c)) {
+                    if let Some(Constant::Int(val)) = constant.and_then(|c| mir_to_const(cx, c)) {
                         if let ty::Adt(adt, _) = ty.kind() {
                             if adt.is_enum() {
                                 ty = adt.repr().discr_type().to_ty(cx.tcx);

src/tools/clippy/clippy_lints/src/error_impl_error.rs

@@ -27,7 +27,7 @@ declare_clippy_lint! {
     ///
     /// impl std::error::Error for Error { ... }
     /// ```
-    #[clippy::version = "1.72.0"]
+    #[clippy::version = "1.73.0"]
     pub ERROR_IMPL_ERROR,
     restriction,
     "exported types named `Error` that implement `Error`"

src/tools/clippy/clippy_lints/src/four_forward_slashes.rs

@@ -28,7 +28,7 @@ declare_clippy_lint! {
     ///     // ...
     /// }
     /// ```
-    #[clippy::version = "1.72.0"]
+    #[clippy::version = "1.73.0"]
     pub FOUR_FORWARD_SLASHES,
     suspicious,
     "comments with 4 forward slashes (`////`) likely intended to be doc comments (`///`)"

src/tools/clippy/clippy_lints/src/ignored_unit_patterns.rs

@@ -37,6 +37,10 @@ declare_lint_pass!(IgnoredUnitPatterns => [IGNORED_UNIT_PATTERNS]);
 
 impl<'tcx> LateLintPass<'tcx> for IgnoredUnitPatterns {
     fn check_pat(&mut self, cx: &LateContext<'tcx>, pat: &'tcx hir::Pat<'tcx>) {
+        if pat.span.from_expansion() {
+            return;
+        }
+
         match cx.tcx.hir().get_parent(pat.hir_id) {
             Node::Param(param) if matches!(cx.tcx.hir().get_parent(param.hir_id), Node::Item(_)) => {
                 // Ignore function parameters