Merge commit '10136170fe9ed01e46aeb4f4479175b79eb0e3c7' into clippy-subtree-update

Author: flip1995

.github/driver.sh

@@ -32,7 +32,7 @@ test "$sysroot" = $desired_sysroot
 )
 
 # Check that the --sysroot argument is only passed once via arg_file.txt (SYSROOT is ignored)
-(  
+(
     echo "fn main() {}" > target/driver_test.rs
     echo "--sysroot="$(./target/debug/clippy-driver --print sysroot)"" > arg_file.txt
     echo "--verbose" >> arg_file.txt
@@ -45,7 +45,7 @@ unset CARGO_MANIFEST_DIR
 # Run a lint and make sure it produces the expected output. It's also expected to exit with code 1
 # FIXME: How to match the clippy invocation in compile-test.rs?
 ./target/debug/clippy-driver -Dwarnings -Aunused -Zui-testing --emit metadata --crate-type bin tests/ui/double_neg.rs 2>double_neg.stderr && exit 1
-sed -e "s,tests/ui,\$DIR," -e "/= help: for/d" double_neg.stderr > normalized.stderr
+sed -e "/= help: for/d" double_neg.stderr > normalized.stderr
 diff -u normalized.stderr tests/ui/double_neg.stderr
 
 # make sure "clippy-driver --rustc --arg" and "rustc --arg" behave the same

CHANGELOG.md

@@ -5125,6 +5125,7 @@ Released 2018-09-13
 [`default_trait_access`]: https://rust-lang.github.io/rust-clippy/master/index.html#default_trait_access
 [`default_union_representation`]: https://rust-lang.github.io/rust-clippy/master/index.html#default_union_representation
 [`deprecated_cfg_attr`]: https://rust-lang.github.io/rust-clippy/master/index.html#deprecated_cfg_attr
+[`deprecated_clippy_cfg_attr`]: https://rust-lang.github.io/rust-clippy/master/index.html#deprecated_clippy_cfg_attr
 [`deprecated_semver`]: https://rust-lang.github.io/rust-clippy/master/index.html#deprecated_semver
 [`deref_addrof`]: https://rust-lang.github.io/rust-clippy/master/index.html#deref_addrof
 [`deref_by_slicing`]: https://rust-lang.github.io/rust-clippy/master/index.html#deref_by_slicing
@@ -5157,6 +5158,7 @@ Released 2018-09-13
 [`duration_subsec`]: https://rust-lang.github.io/rust-clippy/master/index.html#duration_subsec
 [`eager_transmute`]: https://rust-lang.github.io/rust-clippy/master/index.html#eager_transmute
 [`else_if_without_else`]: https://rust-lang.github.io/rust-clippy/master/index.html#else_if_without_else
+[`empty_docs`]: https://rust-lang.github.io/rust-clippy/master/index.html#empty_docs
 [`empty_drop`]: https://rust-lang.github.io/rust-clippy/master/index.html#empty_drop
 [`empty_enum`]: https://rust-lang.github.io/rust-clippy/master/index.html#empty_enum
 [`empty_enum_variants_with_brackets`]: https://rust-lang.github.io/rust-clippy/master/index.html#empty_enum_variants_with_brackets
@@ -5429,6 +5431,7 @@ Released 2018-09-13
 [`modulo_arithmetic`]: https://rust-lang.github.io/rust-clippy/master/index.html#modulo_arithmetic
 [`modulo_one`]: https://rust-lang.github.io/rust-clippy/master/index.html#modulo_one
 [`multi_assignments`]: https://rust-lang.github.io/rust-clippy/master/index.html#multi_assignments
+[`multiple_bound_locations`]: https://rust-lang.github.io/rust-clippy/master/index.html#multiple_bound_locations
 [`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
@@ -5725,10 +5728,12 @@ Released 2018-09-13
 [`unknown_clippy_lints`]: https://rust-lang.github.io/rust-clippy/master/index.html#unknown_clippy_lints
 [`unnecessary_box_returns`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_box_returns
 [`unnecessary_cast`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_cast
+[`unnecessary_clippy_cfg`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_clippy_cfg
 [`unnecessary_fallible_conversions`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fallible_conversions
 [`unnecessary_filter_map`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_filter_map
 [`unnecessary_find_map`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_find_map
 [`unnecessary_fold`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fold
+[`unnecessary_get_then_check`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_get_then_check
 [`unnecessary_join`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_join
 [`unnecessary_lazy_evaluations`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_lazy_evaluations
 [`unnecessary_literal_unwrap`]: https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_literal_unwrap

Cargo.toml

@@ -27,17 +27,17 @@ rustc_tools_util = "0.3.0"
 tempfile = { version = "3.2", optional = true }
 termize = "0.1"
 color-print = "0.3.4"
-anstream = "0.5.0"
+anstream = "0.6.0"
 
 [dev-dependencies]
-ui_test = "0.21.2"
+ui_test = "0.22.2"
 tester = "0.9"
 regex = "1.5"
 toml = "0.7.3"
 walkdir = "2.3"
 # This is used by the `collect-metadata` alias.
 filetime = "0.2"
-itertools = "0.11"
+itertools = "0.12"
 
 # UI test dependencies
 clippy_utils = { path = "clippy_utils" }

book/src/configuration.md

@@ -33,26 +33,29 @@ 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.
 
-### Allowing/denying lints
+### Allowing/Denying Lints
 
-You can add options to your code to `allow`/`warn`/`deny` Clippy lints:
+#### Attributes in Code
 
-* the whole set of `Warn` lints using the `clippy` lint group (`#![deny(clippy::all)]`)
+You can add attributes to your code to `allow`/`warn`/`deny` Clippy lints:
 
-* all lints using both the `clippy` and `clippy::pedantic` lint groups (`#![deny(clippy::all)]`,
-  `#![deny(clippy::pedantic)]`). Note that `clippy::pedantic` contains some very aggressive lints prone to false
-  positives.
+* the whole set of `warn`-by-default lints using the `clippy` lint group (`#![allow(clippy::all)]`)
+
+* all lints using both the `clippy` and `clippy::pedantic` lint groups (`#![warn(clippy::all, clippy::pedantic)]`. Note
+  that `clippy::pedantic` contains some very aggressive lints prone to false positives.
 
 * only some lints (`#![deny(clippy::single_match, clippy::box_vec)]`, etc.)
 
 * `allow`/`warn`/`deny` can be limited to a single function or module using `#[allow(...)]`, etc.
 
 Note: `allow` means to suppress the lint for your code. With `warn` the lint will only emit a warning, while with `deny`
-the lint will emit an error, when triggering for your code. An error causes clippy to exit with an error code, so is
-useful in scripts like CI/CD.
+the lint will emit an error, when triggering for your code. An error causes Clippy to exit with an error code, so is
+most useful in scripts used in CI/CD.
+
+#### Command Line Flags
 
-If you do not want to include your lint levels in your code, you can globally enable/disable lints by passing extra
-flags to Clippy during the run:
+If you do not want to include your lint levels in the code, you can globally enable/disable lints by passing extra flags
+to Clippy during the run:
 
 To allow `lint_name`, run
 
@@ -66,19 +69,33 @@ And to warn on `lint_name`, run
 cargo clippy -- -W clippy::lint_name
 ```
 
-This also works with lint groups. For example, you can run Clippy with warnings for all lints enabled:
+This also works with lint groups. For example, you can run Clippy with warnings for all pedantic lints enabled:
 
 ```terminal
 cargo clippy -- -W clippy::pedantic
 ```
 
-If you care only about a single lint, you can allow all others and then explicitly warn on the lint(s) you are
+If you care only about a certain lints, you can allow all others and then explicitly warn on the lints you are
 interested in:
 
 ```terminal
 cargo clippy -- -A clippy::all -W clippy::useless_format -W clippy::...
 ```
 
+#### Lints Section in `Cargo.toml`
+
+Finally, lints can be allowed/denied using [the lints
+section](https://doc.rust-lang.org/nightly/cargo/reference/manifest.html#the-lints-section)) in the `Cargo.toml` file:
+
+To deny `clippy::enum_glob_use`, put the following in the `Cargo.toml`:
+
+```toml
+[lints.clippy]
+enum_glob_use = "deny"
+```
+
+For more details and options, refer to the Cargo documentation.
+
 ### Specifying the minimum supported Rust version
 
 Projects that intend to support old versions of Rust can disable lints pertaining to newer features by specifying the
@@ -113,17 +130,14 @@ found [here](https://rust-lang.github.io/rust-clippy/master/index.html#msrv)
 
 Very rarely, you may wish to prevent Clippy from evaluating certain sections of code entirely. You can do this with
 [conditional compilation](https://doc.rust-lang.org/reference/conditional-compilation.html) by checking that the
-`cargo-clippy` feature is not set. You may need to provide a stub so that the code compiles:
+`clippy` cfg is not set. You may need to provide a stub so that the code compiles:
 
 ```rust
-#[cfg(not(feature = "cargo-clippy"))]
+#[cfg(not(clippy)]
 include!(concat!(env!("OUT_DIR"), "/my_big_function-generated.rs"));
 
-#[cfg(feature = "cargo-clippy")]
+#[cfg(clippy)]
 fn my_big_function(_input: &str) -> Option<MyStruct> {
     None
 }
 ```
-
-This feature is not actually part of your crate, so specifying `--all-features` to other tools, e.g. `cargo test
---all-features`, will not disable it.

book/src/development/emitting_lints.md

@@ -82,7 +82,7 @@ The output looks something like this (from the example earlier):
 
 ```text
 error: an inclusive range would be more readable
-  --> $DIR/range_plus_minus_one.rs:37:14
+  --> tests/ui/range_plus_minus_one.rs:37:14
    |
 LL |     for _ in 1..1 + 1 {}
    |              ^^^^^^^^ help: use: `1..=1`
@@ -135,14 +135,14 @@ Examples:
 
 ```text
 error: calls to `std::mem::forget` with a reference instead of an owned value. Forgetting a reference does nothing.
-  --> $DIR/drop_forget_ref.rs:10:5
+  --> tests/ui/drop_forget_ref.rs:10:5
    |
 10 |     forget(&SomeStruct);
    |     ^^^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::forget-ref` implied by `-D warnings`
 note: argument has type &SomeStruct
-  --> $DIR/drop_forget_ref.rs:10:12
+  --> tests/ui/drop_forget_ref.rs:10:12
    |
 10 |     forget(&SomeStruct);
    |            ^^^^^^^^^^^
@@ -158,7 +158,7 @@ Example:
 
 ```text
 error: constant division of 0.0 with 0.0 will always result in NaN
-  --> $DIR/zero_div_zero.rs:6:25
+  --> tests/ui/zero_div_zero.rs:6:25
    |
 6  |     let other_f64_nan = 0.0f64 / 0.0;
    |                         ^^^^^^^^^^^^
@@ -176,7 +176,7 @@ Example:
 
 ```text
 error: This `.fold` can be more succinctly expressed as `.any`
---> $DIR/methods.rs:390:13
+--> tests/ui/methods.rs:390:13
     |
 390 |     let _ = (0..3).fold(false, |acc, x| acc || x > 2);
     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `.any(|x| x > 2)`

book/src/development/writing_tests.md

@@ -97,19 +97,19 @@ failures:
 ---- compile_test stdout ----
 normalized stderr:
 error: function called "foo"
-  --> $DIR/foo_functions.rs:6:12
+  --> tests/ui/foo_functions.rs:6:12
    |
 LL |     pub fn foo(&self) {}
    |            ^^^
    |
    = note: `-D clippy::foo-functions` implied by `-D warnings`
 error: function called "foo"
-  --> $DIR/foo_functions.rs:13:8
+  --> tests/ui/foo_functions.rs:13:8
    |
 LL |     fn foo(&self) {}
    |        ^^^
 error: function called "foo"
-  --> $DIR/foo_functions.rs:19:4
+  --> tests/ui/foo_functions.rs:19:4
    |
 LL | fn foo() {}
    |    ^^^

book/src/lint_configuration.md

@@ -278,7 +278,7 @@ The minimum number of struct fields for the lints about field names to trigger
 
 ---
 **Affected lints:**
-* [`struct_variant_names`](https://rust-lang.github.io/rust-clippy/master/index.html#struct_variant_names)
+* [`struct_field_names`](https://rust-lang.github.io/rust-clippy/master/index.html#struct_field_names)
 
 
 ## `enum-variant-size-threshold`

clippy_config/src/conf.rs

@@ -325,7 +325,7 @@ define_Conf! {
     ///
     /// The minimum number of enum variants for the lints about variant names to trigger
     (enum_variant_name_threshold: u64 = 3),
-    /// Lint: STRUCT_VARIANT_NAMES.
+    /// Lint: STRUCT_FIELD_NAMES.
     ///
     /// The minimum number of struct fields for the lints about field names to trigger
     (struct_field_name_threshold: u64 = 3),
@@ -648,7 +648,7 @@ fn deserialize(file: &SourceFile) -> TryConf {
             extend_vec_if_indicator_present(&mut conf.conf.doc_valid_idents, DEFAULT_DOC_VALID_IDENTS);
             extend_vec_if_indicator_present(&mut conf.conf.disallowed_names, DEFAULT_DISALLOWED_NAMES);
             // TODO: THIS SHOULD BE TESTED, this comment will be gone soon
-            if conf.conf.allowed_idents_below_min_chars.contains(&"..".to_owned()) {
+            if conf.conf.allowed_idents_below_min_chars.contains("..") {
                 conf.conf
                     .allowed_idents_below_min_chars
                     .extend(DEFAULT_ALLOWED_IDENTS_BELOW_MIN_CHARS.iter().map(ToString::to_string));

clippy_config/src/lib.rs

@@ -6,7 +6,7 @@
     clippy::missing_panics_doc,
     rustc::diagnostic_outside_of_impl,
     rustc::untranslatable_diagnostic,
-    rustc::untranslatable_diagnostic_trivial,
+    rustc::untranslatable_diagnostic_trivial
 )]
 
 extern crate rustc_ast;

clippy_dev/Cargo.toml

@@ -7,7 +7,7 @@ edition = "2021"
 aho-corasick = "1.0"
 clap = "4.1.4"
 indoc = "1.0"
-itertools = "0.11"
+itertools = "0.12"
 opener = "0.6"
 shell-escape = "0.1"
 walkdir = "2.3"

clippy_lints/Cargo.toml

@@ -14,7 +14,7 @@ cargo_metadata = "0.18"
 clippy_config = { path = "../clippy_config" }
 clippy_utils = { path = "../clippy_utils" }
 declare_clippy_lint = { path = "../declare_clippy_lint" }
-itertools = "0.11"
+itertools = "0.12"
 quine-mc_cluskey = "0.2"
 regex-syntax = "0.8"
 serde = { version = "1.0", features = ["derive"] }

clippy_lints/src/asm_syntax.rs

@@ -2,8 +2,11 @@ use std::fmt;
 
 use clippy_utils::diagnostics::span_lint_and_help;
 use rustc_ast::ast::{Expr, ExprKind, InlineAsmOptions};
-use rustc_lint::{EarlyContext, EarlyLintPass, Lint};
+use rustc_ast::{InlineAsm, Item, ItemKind};
+use rustc_lint::{EarlyContext, EarlyLintPass, Lint, LintContext};
 use rustc_session::declare_lint_pass;
+use rustc_span::Span;
+use rustc_target::asm::InlineAsmArch;
 
 #[derive(Clone, Copy, PartialEq, Eq)]
 enum AsmStyle {
@@ -31,8 +34,14 @@ impl std::ops::Not for AsmStyle {
     }
 }
 
-fn check_expr_asm_syntax(lint: &'static Lint, cx: &EarlyContext<'_>, expr: &Expr, check_for: AsmStyle) {
-    if let ExprKind::InlineAsm(ref inline_asm) = expr.kind {
+fn check_asm_syntax(
+    lint: &'static Lint,
+    cx: &EarlyContext<'_>,
+    inline_asm: &InlineAsm,
+    span: Span,
+    check_for: AsmStyle,
+) {
+    if matches!(cx.sess().asm_arch, Some(InlineAsmArch::X86 | InlineAsmArch::X86_64)) {
         let style = if inline_asm.options.contains(InlineAsmOptions::ATT_SYNTAX) {
             AsmStyle::Att
         } else {
@@ -43,7 +52,7 @@ fn check_expr_asm_syntax(lint: &'static Lint, cx: &EarlyContext<'_>, expr: &Expr
             span_lint_and_help(
                 cx,
                 lint,
-                expr.span,
+                span,
                 &format!("{style} x86 assembly syntax used"),
                 None,
                 &format!("use {} x86 assembly syntax", !style),
@@ -89,7 +98,15 @@ declare_lint_pass!(InlineAsmX86IntelSyntax => [INLINE_ASM_X86_INTEL_SYNTAX]);
 
 impl EarlyLintPass for InlineAsmX86IntelSyntax {
     fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
-        check_expr_asm_syntax(Self::get_lints()[0], cx, expr, AsmStyle::Intel);
+        if let ExprKind::InlineAsm(inline_asm) = &expr.kind {
+            check_asm_syntax(Self::get_lints()[0], cx, inline_asm, expr.span, AsmStyle::Intel);
+        }
+    }
+
+    fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item) {
+        if let ItemKind::GlobalAsm(inline_asm) = &item.kind {
+            check_asm_syntax(Self::get_lints()[0], cx, inline_asm, item.span, AsmStyle::Intel);
+        }
     }
 }
 
@@ -130,6 +147,14 @@ declare_lint_pass!(InlineAsmX86AttSyntax => [INLINE_ASM_X86_ATT_SYNTAX]);
 
 impl EarlyLintPass for InlineAsmX86AttSyntax {
     fn check_expr(&mut self, cx: &EarlyContext<'_>, expr: &Expr) {
-        check_expr_asm_syntax(Self::get_lints()[0], cx, expr, AsmStyle::Att);
+        if let ExprKind::InlineAsm(inline_asm) = &expr.kind {
+            check_asm_syntax(Self::get_lints()[0], cx, inline_asm, expr.span, AsmStyle::Att);
+        }
+    }
+
+    fn check_item(&mut self, cx: &EarlyContext<'_>, item: &Item) {
+        if let ItemKind::GlobalAsm(inline_asm) = &item.kind {
+            check_asm_syntax(Self::get_lints()[0], cx, inline_asm, item.span, AsmStyle::Att);
+        }
     }
 }