Rollup merge of #83012 - flip1995:clippyup, r=Manishearth

Update Clippy

Bi-weekly Clippy sync.

r? ``@Manishearth``

Cargo.lock

@@ -570,6 +570,7 @@ dependencies = [
  "clippy_lints",
  "compiletest_rs 0.6.0",
  "derive-new",
+ "regex",
  "rustc-workspace-hack",
  "rustc_tools_util 0.2.0",
  "semver 0.11.0",

src/tools/clippy/.cargo/config

@@ -1,7 +1,7 @@
 [alias]
 uitest = "test --test compile-test"
 dev = "run --target-dir clippy_dev/target --package clippy_dev --bin clippy_dev --manifest-path clippy_dev/Cargo.toml --"
-dev-lintcheck = "run --target-dir clippy_dev/target --package clippy_dev --bin clippy_dev --manifest-path clippy_dev/Cargo.toml --features lintcheck -- lintcheck"
+lintcheck = "run --target-dir lintcheck/target --package lintcheck --bin lintcheck --manifest-path lintcheck/Cargo.toml  -- "
 
 [build]
 rustflags = ["-Zunstable-options"]

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

@@ -27,6 +27,7 @@ env:
 
 jobs:
   base:
+    # NOTE: If you modify this job, make sure you copy the changes to clippy_bors.yml
     runs-on: ubuntu-latest
 
     steps:
@@ -50,11 +51,16 @@ jobs:
     - name: Build
       run: cargo build --features deny-warnings,internal-lints
 
-    - name: Test "--fix -Zunstable-options"
-      run: cargo run --features deny-warnings,internal-lints --bin cargo-clippy -- clippy --fix -Zunstable-options
+    - name: Test
+      run: cargo test --features deny-warnings,internal-lints
 
-    - name: Test Workspace
-      run: cargo test --all --features deny-warnings,internal-lints
+    - name: Test clippy_lints
+      run: cargo test --features deny-warnings,internal-lints
+      working-directory: clippy_lints
+
+    - name: Test rustc_tools_util
+      run: cargo test --features deny-warnings
+      working-directory: rustc_tools_util
 
     - name: Test clippy_dev
       run: cargo test --features deny-warnings
@@ -64,6 +70,10 @@ jobs:
       run: ../target/debug/cargo-clippy
       working-directory: clippy_workspace_tests
 
+    - name: Test cargo-clippy --fix
+      run: ../target/debug/cargo-clippy clippy --fix -Zunstable-options
+      working-directory: clippy_workspace_tests
+
     - name: Test clippy-driver
       run: bash .github/driver.sh
       env:

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

@@ -72,6 +72,7 @@ jobs:
 
     runs-on: ${{ matrix.os }}
 
+    # NOTE: If you modify this job, make sure you copy the changes to clippy.yml
     steps:
     # Setup
     - uses: rust-lang/simpleinfra/github-actions/cancel-outdated-builds@master
@@ -112,8 +113,16 @@ jobs:
     - name: Build
       run: cargo build --features deny-warnings,internal-lints
 
-    - name: Test Workspace
-      run: cargo test --all --features deny-warnings,internal-lints
+    - name: Test
+      run: cargo test --features deny-warnings,internal-lints
+
+    - name: Test clippy_lints
+      run: cargo test --features deny-warnings,internal-lints
+      working-directory: clippy_lints
+
+    - name: Test rustc_tools_util
+      run: cargo test --features deny-warnings
+      working-directory: rustc_tools_util
 
     - name: Test clippy_dev
       run: cargo test --features deny-warnings
@@ -123,11 +132,22 @@ jobs:
       run: ../target/debug/cargo-clippy
       working-directory: clippy_workspace_tests
 
+    - name: Test cargo-clippy --fix
+      run: ../target/debug/cargo-clippy clippy --fix -Zunstable-options
+      working-directory: clippy_workspace_tests
+
     - name: Test clippy-driver
       run: bash .github/driver.sh
       env:
         OS: ${{ runner.os }}
 
+    - name: Test cargo dev new lint
+      run: |
+        cargo dev new_lint --name new_early_pass --pass early
+        cargo dev new_lint --name new_late_pass --pass late
+        cargo check
+        git reset --hard HEAD
+
   integration_build:
     needs: changelog
     runs-on: ubuntu-latest

src/tools/clippy/.gitignore

@@ -21,6 +21,7 @@ out
 /clippy_utils/target
 /clippy_workspace_tests/target
 /clippy_dev/target
+/lintcheck/target
 /rustc_tools_util/target
 
 # Generated by dogfood

src/tools/clippy/CHANGELOG.md

@@ -2104,6 +2104,7 @@ Released 2018-09-13
 [`if_not_else`]: https://rust-lang.github.io/rust-clippy/master/index.html#if_not_else
 [`if_same_then_else`]: https://rust-lang.github.io/rust-clippy/master/index.html#if_same_then_else
 [`ifs_same_cond`]: https://rust-lang.github.io/rust-clippy/master/index.html#ifs_same_cond
+[`implicit_clone`]: https://rust-lang.github.io/rust-clippy/master/index.html#implicit_clone
 [`implicit_hasher`]: https://rust-lang.github.io/rust-clippy/master/index.html#implicit_hasher
 [`implicit_return`]: https://rust-lang.github.io/rust-clippy/master/index.html#implicit_return
 [`implicit_saturating_sub`]: https://rust-lang.github.io/rust-clippy/master/index.html#implicit_saturating_sub
@@ -2134,6 +2135,7 @@ Released 2018-09-13
 [`invisible_characters`]: https://rust-lang.github.io/rust-clippy/master/index.html#invisible_characters
 [`items_after_statements`]: https://rust-lang.github.io/rust-clippy/master/index.html#items_after_statements
 [`iter_cloned_collect`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_cloned_collect
+[`iter_count`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_count
 [`iter_next_loop`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_next_loop
 [`iter_next_slice`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_next_slice
 [`iter_nth`]: https://rust-lang.github.io/rust-clippy/master/index.html#iter_nth

src/tools/clippy/Cargo.toml

@@ -1,13 +1,7 @@
 [package]
 name = "clippy"
 version = "0.1.52"
-authors = [
-	"Manish Goregaokar <manishsmail@gmail.com>",
-	"Andre Bogus <bogusandre@gmail.com>",
-	"Georg Brandl <georg@python.org>",
-	"Martin Carton <cartonmartin@gmail.com>",
-	"Oliver Schneider <clippy-iethah7aipeen8neex1a@oli-obk.de>"
-]
+authors = ["The Rust Clippy Developers"]
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
@@ -42,6 +36,7 @@ tester = "0.9"
 clippy-mini-macro-test = { version = "0.2", path = "mini-macro" }
 serde = { version = "1.0", features = ["derive"] }
 derive-new = "0.5"
+regex = "1.4"
 
 # A noop dependency that changes in the Rust repository, it's a bit of a hack.
 # See the `src/tools/rustc-workspace-hack/README.md` file in `rust-lang/rust`
@@ -55,3 +50,7 @@ rustc_tools_util = { version = "0.2.0", path = "rustc_tools_util" }
 deny-warnings = []
 integration = ["tempfile"]
 internal-lints = ["clippy_lints/internal-lints"]
+
+[package.metadata.rust-analyzer]
+# This package uses #[feature(rustc_private)]
+rustc_private = true

src/tools/clippy/README.md

@@ -202,7 +202,6 @@ the lint(s) you are interested in:
 ```terminal
 cargo clippy -- -A clippy::all -W clippy::useless_format -W clippy::...
 ```
-Note that if you've run clippy before, this may only take effect after you've modified a file or ran `cargo clean`.
 
 ### Specifying the minimum supported Rust version
 

src/tools/clippy/clippy_dev/Cargo.toml

@@ -1,27 +1,17 @@
 [package]
 name = "clippy_dev"
 version = "0.0.1"
-authors = ["Philipp Hansch <dev@phansch.net>"]
+authors = ["The Rust Clippy Developers"]
 edition = "2018"
 
-
 [dependencies]
 bytecount = "0.6"
 clap = "2.33"
-flate2 = { version = "1.0.19", optional = true }
-fs_extra = { version = "1.2.0", optional = true }
 itertools = "0.9"
 opener = "0.4"
 regex = "1"
-serde = { version = "1.0", features = ["derive"], optional = true }
-serde_json = { version = "1.0", optional = true }
 shell-escape = "0.1"
-tar = { version = "0.4.30", optional = true }
-toml = { version = "0.5", optional = true }
-ureq = { version = "2.0.0-rc3", optional = true }
-rayon = { version = "1.5.0", optional = true }
 walkdir = "2"
 
 [features]
-lintcheck = ["flate2", "serde_json", "tar", "toml", "ureq", "serde", "fs_extra", "rayon"]
 deny-warnings = []

src/tools/clippy/clippy_dev/src/fmt.rs

@@ -54,6 +54,7 @@ pub fn run(check: bool, verbose: bool) {
         success &= cargo_fmt(context, project_root.as_path())?;
         success &= cargo_fmt(context, &project_root.join("clippy_dev"))?;
         success &= cargo_fmt(context, &project_root.join("rustc_tools_util"))?;
+        success &= cargo_fmt(context, &project_root.join("lintcheck"))?;
 
         for entry in WalkDir::new(project_root.join("tests")) {
             let entry = entry?;

src/tools/clippy/clippy_dev/src/lib.rs

@@ -12,7 +12,6 @@ use walkdir::WalkDir;
 
 pub mod bless;
 pub mod fmt;
-pub mod lintcheck;
 pub mod new_lint;
 pub mod ra_setup;
 pub mod serve;
@@ -530,7 +529,7 @@ fn test_gen_deprecated() {
 #[should_panic]
 fn test_gen_deprecated_fail() {
     let lints = vec![Lint::new("should_assert_eq2", "group2", "abc", None, "module_name")];
-    let _ = gen_deprecated(lints.iter());
+    let _deprecated_lints = gen_deprecated(lints.iter());
 }
 
 #[test]

src/tools/clippy/clippy_dev/src/main.rs

@@ -2,21 +2,13 @@
 
 use clap::{App, Arg, ArgMatches, SubCommand};
 use clippy_dev::{bless, fmt, new_lint, ra_setup, serve, stderr_length_check, update_lints};
-
-#[cfg(feature = "lintcheck")]
-use clippy_dev::lintcheck;
-
 fn main() {
     let matches = get_clap_config();
 
     match matches.subcommand() {
         ("bless", Some(matches)) => {
             bless::bless(matches.is_present("ignore-timestamp"));
         },
-        #[cfg(feature = "lintcheck")]
-        ("lintcheck", Some(matches)) => {
-            lintcheck::run(&matches);
-        },
         ("fmt", Some(matches)) => {
             fmt::run(matches.is_present("check"), matches.is_present("verbose"));
         },
@@ -53,33 +45,7 @@ fn main() {
 }
 
 fn get_clap_config<'a>() -> ArgMatches<'a> {
-    #[cfg(feature = "lintcheck")]
-    let lintcheck_sbcmd = SubCommand::with_name("lintcheck")
-        .about("run clippy on a set of crates and check output")
-        .arg(
-            Arg::with_name("only")
-                .takes_value(true)
-                .value_name("CRATE")
-                .long("only")
-                .help("only process a single crate of the list"),
-        )
-        .arg(
-            Arg::with_name("crates-toml")
-                .takes_value(true)
-                .value_name("CRATES-SOURCES-TOML-PATH")
-                .long("crates-toml")
-                .help("set the path for a crates.toml where lintcheck should read the sources from"),
-        )
-        .arg(
-            Arg::with_name("threads")
-                .takes_value(true)
-                .value_name("N")
-                .short("j")
-                .long("jobs")
-                .help("number of threads to use, 0 automatic choice"),
-        );
-
-    let app = App::new("Clippy developer tooling")
+    App::new("Clippy developer tooling")
         .subcommand(
             SubCommand::with_name("bless")
                 .about("bless the test output changes")
@@ -196,10 +162,6 @@ fn get_clap_config<'a>() -> ArgMatches<'a> {
                         .validator_os(serve::validate_port),
                 )
                 .arg(Arg::with_name("lint").help("Which lint's page to load initially (optional)")),
-        );
-
-    #[cfg(feature = "lintcheck")]
-    let app = app.subcommand(lintcheck_sbcmd);
-
-    app.get_matches()
+        )
+        .get_matches()
 }

src/tools/clippy/clippy_dummy/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "clippy_dummy" # rename to clippy before publishing
 version = "0.0.303"
-authors = ["Manish Goregaokar <manishsmail@gmail.com>"]
+authors = ["The Rust Clippy Developers"]
 edition = "2018"
 readme = "crates-readme.md"
 description = "A bunch of helpful lints to avoid common pitfalls in Rust."

src/tools/clippy/clippy_lints/Cargo.toml

@@ -3,12 +3,7 @@ name = "clippy_lints"
 # begin automatic update
 version = "0.1.52"
 # end automatic update
-authors = [
-	"Manish Goregaokar <manishsmail@gmail.com>",
-	"Andre Bogus <bogusandre@gmail.com>",
-	"Georg Brandl <georg@python.org>",
-	"Martin Carton <cartonmartin@gmail.com>"
-]
+authors = ["The Rust Clippy Developers"]
 description = "A bunch of helpful lints to avoid common pitfalls in Rust"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
@@ -29,14 +24,18 @@ smallvec = { version = "1", features = ["union"] }
 toml = "0.5.3"
 unicode-normalization = "0.1"
 semver = "0.11"
-rustc-semver="1.1.0"
+rustc-semver = "1.1.0"
 # NOTE: cargo requires serde feat in its url dep
 # see <https://github.com/rust-lang/rust/pull/63587#issuecomment-522343864>
-url = { version =  "2.1.0", features = ["serde"] }
+url = { version = "2.1.0", features = ["serde"] }
 quote = "1"
 syn = { version = "1", features = ["full"] }
 
 [features]
 deny-warnings = []
 # build clippy with internal lints enabled, off by default
 internal-lints = ["clippy_utils/internal-lints"]
+
+[package.metadata.rust-analyzer]
+# This crate uses #[feature(rustc_private)]
+rustc_private = true

src/tools/clippy/clippy_lints/src/assign_ops.rs

@@ -209,7 +209,7 @@ fn lint_misrefactored_assign_op(
                 diag.span_suggestion(
                     expr.span,
                     &format!(
-                        "Did you mean `{} = {} {} {}` or `{}`? Consider replacing it with",
+                        "did you mean `{} = {} {} {}` or `{}`? Consider replacing it with",
                         snip_a,
                         snip_a,
                         op.node.as_str(),

src/tools/clippy/clippy_lints/src/async_yields_async.rs

@@ -50,8 +50,7 @@ impl<'tcx> LateLintPass<'tcx> for AsyncYieldsAsync {
                 let body_id = BodyId {
                     hir_id: body.value.hir_id,
                 };
-                let def_id = cx.tcx.hir().body_owner_def_id(body_id);
-                let typeck_results = cx.tcx.typeck(def_id);
+                let typeck_results = cx.tcx.typeck_body(body_id);
                 let expr_ty = typeck_results.expr_ty(&body.value);
 
                 if implements_trait(cx, expr_ty, future_trait_def_id, &[]) {

src/tools/clippy/clippy_lints/src/attrs.rs

@@ -640,7 +640,7 @@ fn check_mismatched_target_os(cx: &EarlyContext<'_>, attr: &Attribute) {
                     diag.span_suggestion(span, "try", sugg, Applicability::MaybeIncorrect);
 
                     if !unix_suggested && is_unix(os) {
-                        diag.help("Did you mean `unix`?");
+                        diag.help("did you mean `unix`?");
                         unix_suggested = true;
                     }
                 }