clippy_lints/src/lib.rs

   1 // error-pattern:cargo-clippy
   2
   3 #![feature(box_syntax)]
   4 #![feature(rustc_private)]
   5 #![feature(slice_patterns)]
   6 #![feature(stmt_expr_attributes)]
   7 #![feature(range_contains)]
   8 #![allow(clippy::missing_docs_in_private_items)]
   9 #![recursion_limit = "256"]
  10 #![warn(rust_2018_idioms, trivial_casts, trivial_numeric_casts)]
  11 #![feature(crate_visibility_modifier)]
  12
  13 // FIXME: switch to something more ergonomic here, once available.
  14 // (currently there is no way to opt into sysroot crates w/o `extern crate`)
  15 #[allow(unused_extern_crates)]
  16 extern crate fmt_macros;
  17 #[allow(unused_extern_crates)]
  18 extern crate rustc;
  19 #[allow(unused_extern_crates)]
  20 extern crate rustc_data_structures;
  21 #[allow(unused_extern_crates)]
  22 extern crate rustc_errors;
  23 #[allow(unused_extern_crates)]
  24 extern crate rustc_mir;
  25 #[allow(unused_extern_crates)]
  26 extern crate rustc_plugin;
  27 #[allow(unused_extern_crates)]
  28 extern crate rustc_target;
  29 #[allow(unused_extern_crates)]
  30 extern crate rustc_typeck;
  31 #[allow(unused_extern_crates)]
  32 extern crate syntax;
  33 #[allow(unused_extern_crates)]
  34 extern crate syntax_pos;
  35
  36 use toml;
  37
  38 /// Macro used to declare a Clippy lint.
  39 ///
  40 /// Every lint declaration consists of 4 parts:
  41 ///
  42 /// 1. The documentation above the lint, which is used for the website
  43 /// 2. The `LINT_NAME`. See [lint naming][lint_naming] on lint naming conventions.
  44 /// 3. The `lint_level`, which is a mapping from *one* of our lint groups to `Allow`, `Warn` or
  45 ///    `Deny`. The lint level here has nothing to do with what lint groups the lint is a part of.
  46 /// 4. The `description` that contains a short explanation on what's wrong with code where the
  47 ///    lint is triggered.
  48 ///
  49 /// Currently the categories `style`, `correctness`, `complexity` and `perf` are enabled by default.
  50 /// As said in the README.md of this repository, if the lint level mapping changes, please update
  51 /// README.md.
  52 ///
  53 /// # Example
  54 ///
  55 /// ```
  56 /// # #![feature(rustc_private)]
  57 /// # #[allow(unused_extern_crates)]
  58 /// # extern crate rustc;
  59 /// # #[macro_use]
  60 /// # use clippy_lints::declare_clippy_lint;
  61 /// use rustc::declare_tool_lint;
  62 ///
  63 /// /// **What it does:** Checks for ... (describe what the lint matches).
  64 /// ///
  65 /// /// **Why is this bad?** Supply the reason for linting the code.
  66 /// ///
  67 /// /// **Known problems:** None. (Or describe where it could go wrong.)
  68 /// ///
  69 /// /// **Example:**
  70 /// ///
  71 /// /// ```rust
  72 /// /// // Bad
  73 /// /// Insert a short example of code that triggers the lint
  74 /// ///
  75 /// /// // Good
  76 /// /// Insert a short example of improved code that doesn't trigger the lint
  77 /// /// ```
  78 /// declare_clippy_lint! {
  79 ///     pub LINT_NAME,
  80 ///     pedantic,
  81 ///     "description"
  82 /// }
  83 /// ```
  84 /// [lint_naming]: https://rust-lang.github.io/rfcs/0344-conventions-galore.html#lints
  85 #[macro_export]
  86 macro_rules! declare_clippy_lint {
  87     { pub $name:tt, style, $description:tt } => {
  88         declare_tool_lint! { pub clippy::$name, Warn, $description, report_in_external_macro: true }
  89     };
  90     { pub $name:tt, correctness, $description:tt } => {
  91         declare_tool_lint! { pub clippy::$name, Deny, $description, report_in_external_macro: true }
  92     };
  93     { pub $name:tt, complexity, $description:tt } => {
  94         declare_tool_lint! { pub clippy::$name, Warn, $description, report_in_external_macro: true }
  95     };
  96     { pub $name:tt, perf, $description:tt } => {
  97         declare_tool_lint! { pub clippy::$name, Warn, $description, report_in_external_macro: true }
  98     };
  99     { pub $name:tt, pedantic, $description:tt } => {
 100         declare_tool_lint! { pub clippy::$name, Allow, $description, report_in_external_macro: true }
 101     };
 102     { pub $name:tt, restriction, $description:tt } => {
 103         declare_tool_lint! { pub clippy::$name, Allow, $description, report_in_external_macro: true }
 104     };
 105     { pub $name:tt, cargo, $description:tt } => {
 106         declare_tool_lint! { pub clippy::$name, Allow, $description, report_in_external_macro: true }
 107     };
 108     { pub $name:tt, nursery, $description:tt } => {
 109         declare_tool_lint! { pub clippy::$name, Allow, $description, report_in_external_macro: true }
 110     };
 111     { pub $name:tt, internal, $description:tt } => {
 112         declare_tool_lint! { pub clippy::$name, Allow, $description, report_in_external_macro: true }
 113     };
 114     { pub $name:tt, internal_warn, $description:tt } => {
 115         declare_tool_lint! { pub clippy::$name, Warn, $description, report_in_external_macro: true }
 116     };
 117 }
 118
 119 mod consts;
 120 #[macro_use]
 121 mod utils;
 122
 123 // begin lints modules, do not remove this comment, it’s used in `update_lints`
 124 pub mod approx_const;
 125 pub mod arithmetic;
 126 pub mod assertions_on_constants;
 127 pub mod assign_ops;
 128 pub mod attrs;
 129 pub mod bit_mask;
 130 pub mod blacklisted_name;
 131 pub mod block_in_if_condition;
 132 pub mod booleans;
 133 pub mod bytecount;
 134 pub mod cargo_common_metadata;
 135 pub mod collapsible_if;
 136 pub mod const_static_lifetime;
 137 pub mod copies;
 138 pub mod copy_iterator;
 139 pub mod cyclomatic_complexity;
 140 pub mod dbg_macro;
 141 pub mod default_trait_access;
 142 pub mod derive;
 143 pub mod doc;
 144 pub mod double_comparison;
 145 pub mod double_parens;
 146 pub mod drop_bounds;
 147 pub mod drop_forget_ref;
 148 pub mod duration_subsec;
 149 pub mod else_if_without_else;
 150 pub mod empty_enum;
 151 pub mod entry;
 152 pub mod enum_clike;
 153 pub mod enum_glob_use;
 154 pub mod enum_variants;
 155 pub mod eq_op;
 156 pub mod erasing_op;
 157 pub mod escape;
 158 pub mod eta_reduction;
 159 pub mod eval_order_dependence;
 160 pub mod excessive_precision;
 161 pub mod explicit_write;
 162 pub mod fallible_impl_from;
 163 pub mod format;
 164 pub mod formatting;
 165 pub mod functions;
 166 pub mod identity_conversion;
 167 pub mod identity_op;
 168 pub mod if_not_else;
 169 pub mod implicit_return;
 170 pub mod indexing_slicing;
 171 pub mod infallible_destructuring_match;
 172 pub mod infinite_iter;
 173 pub mod inherent_impl;
 174 pub mod inline_fn_without_body;
 175 pub mod int_plus_one;
 176 pub mod invalid_ref;
 177 pub mod items_after_statements;
 178 pub mod large_enum_variant;
 179 pub mod len_zero;
 180 pub mod let_if_seq;
 181 pub mod lifetimes;
 182 pub mod literal_representation;
 183 pub mod loops;
 184 pub mod map_clone;
 185 pub mod map_unit_fn;
 186 pub mod matches;
 187 pub mod mem_discriminant;
 188 pub mod mem_forget;
 189 pub mod mem_replace;
 190 pub mod methods;
 191 pub mod minmax;
 192 pub mod misc;
 193 pub mod misc_early;
 194 pub mod missing_const_for_fn;
 195 pub mod missing_doc;
 196 pub mod missing_inline;
 197 pub mod multiple_crate_versions;
 198 pub mod mut_mut;
 199 pub mod mut_reference;
 200 pub mod mutex_atomic;
 201 pub mod needless_bool;
 202 pub mod needless_borrow;
 203 pub mod needless_borrowed_ref;
 204 pub mod needless_continue;
 205 pub mod needless_pass_by_value;
 206 pub mod needless_update;
 207 pub mod neg_cmp_op_on_partial_ord;
 208 pub mod neg_multiply;
 209 pub mod new_without_default;
 210 pub mod no_effect;
 211 pub mod non_copy_const;
 212 pub mod non_expressive_names;
 213 pub mod ok_if_let;
 214 pub mod open_options;
 215 pub mod overflow_check_conditional;
 216 pub mod panic_unimplemented;
 217 pub mod partialeq_ne_impl;
 218 pub mod precedence;
 219 pub mod ptr;
 220 pub mod ptr_offset_with_cast;
 221 pub mod question_mark;
 222 pub mod ranges;
 223 pub mod redundant_clone;
 224 pub mod redundant_field_names;
 225 pub mod redundant_pattern_matching;
 226 pub mod reference;
 227 pub mod regex;
 228 pub mod replace_consts;
 229 pub mod returns;
 230 pub mod serde_api;
 231 pub mod shadow;
 232 pub mod slow_vector_initialization;
 233 pub mod strings;
 234 pub mod suspicious_trait_impl;
 235 pub mod swap;
 236 pub mod temporary_assignment;
 237 pub mod transmute;
 238 pub mod trivially_copy_pass_by_ref;
 239 pub mod types;
 240 pub mod unicode;
 241 pub mod unsafe_removed_from_name;
 242 pub mod unused_io_amount;
 243 pub mod unused_label;
 244 pub mod unwrap;
 245 pub mod use_self;
 246 pub mod vec;
 247 pub mod wildcard_dependencies;
 248 pub mod write;
 249 pub mod zero_div_zero;
 250 // end lints modules, do not remove this comment, it’s used in `update_lints`
 251
 252 pub use crate::utils::conf::Conf;
 253
 254 mod reexport {
 255     crate use syntax::ast::{Name, NodeId};
 256 }
 257
 258 /// Register all pre expansion lints
 259 ///
 260 /// Pre-expansion lints run before any macro expansion has happened.
 261 ///
 262 /// Note that due to the architechture of the compiler, currently `cfg_attr` attributes on crate
 263 /// level (i.e `#![cfg_attr(...)]`) will still be expanded even when using a pre-expansion pass.
 264 ///
 265 /// Used in `./src/driver.rs`.
 266 pub fn register_pre_expansion_lints(
 267     session: &rustc::session::Session,
 268     store: &mut rustc::lint::LintStore,
 269     conf: &Conf,
 270 ) {
 271     store.register_pre_expansion_pass(Some(session), true, false, box write::Pass);
 272     store.register_pre_expansion_pass(
 273         Some(session),
 274         true,
 275         false,
 276         box redundant_field_names::RedundantFieldNames,
 277     );
 278     store.register_pre_expansion_pass(
 279         Some(session),
 280         true,
 281         false,
 282         box non_expressive_names::NonExpressiveNames {
 283             single_char_binding_names_threshold: conf.single_char_binding_names_threshold,
 284         },
 285     );
 286     store.register_pre_expansion_pass(Some(session), true, false, box attrs::CfgAttrPass);
 287     store.register_pre_expansion_pass(Some(session), true, false, box dbg_macro::Pass);
 288 }
 289
 290 #[doc(hidden)]
 291 pub fn read_conf(reg: &rustc_plugin::Registry<'_>) -> Conf {
 292     match utils::conf::file_from_args(reg.args()) {
 293         Ok(file_name) => {
 294             // if the user specified a file, it must exist, otherwise default to `clippy.toml` but
 295             // do not require the file to exist
 296             let file_name = if let Some(file_name) = file_name {
 297                 Some(file_name)
 298             } else {
 299                 match utils::conf::lookup_conf_file() {
 300                     Ok(path) => path,
 301                     Err(error) => {
 302                         reg.sess
 303                             .struct_err(&format!("error finding Clippy's configuration file: {}", error))
 304                             .emit();
 305                         None
 306                     },
 307                 }
 308             };
 309
 310             let file_name = file_name.map(|file_name| {
 311                 if file_name.is_relative() {
 312                     reg.sess
 313                         .local_crate_source_file
 314                         .as_ref()
 315                         .and_then(|file| std::path::Path::new(&file).parent().map(std::path::Path::to_path_buf))
 316                         .unwrap_or_default()
 317                         .join(file_name)
 318                 } else {
 319                     file_name
 320                 }
 321             });
 322
 323             let (conf, errors) = utils::conf::read(file_name.as_ref().map(std::convert::AsRef::as_ref));
 324
 325             // all conf errors are non-fatal, we just use the default conf in case of error
 326             for error in errors {
 327                 reg.sess
 328                     .struct_err(&format!(
 329                         "error reading Clippy's configuration file `{}`: {}",
 330                         file_name.as_ref().and_then(|p| p.to_str()).unwrap_or(""),
 331                         error
 332                     ))
 333                     .emit();
 334             }
 335
 336             conf
 337         },
 338         Err((err, span)) => {
 339             reg.sess
 340                 .struct_span_err(span, err)
 341                 .span_note(span, "Clippy will use default configuration")
 342                 .emit();
 343             toml::from_str("").expect("we never error on empty config files")
 344         },
 345     }
 346 }
 347
 348 /// Register all lints and lint groups with the rustc plugin registry
 349 ///
 350 /// Used in `./src/driver.rs`.
 351 #[allow(clippy::too_many_lines)]
 352 #[rustfmt::skip]
 353 pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
 354     let mut store = reg.sess.lint_store.borrow_mut();
 355     // begin deprecated lints, do not remove this comment, it’s used in `update_lints`
 356     store.register_removed(
 357         "should_assert_eq",
 358         "`assert!()` will be more flexible with RFC 2011",
 359     );
 360     store.register_removed(
 361         "extend_from_slice",
 362         "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice",
 363     );
 364     store.register_removed(
 365         "range_step_by_zero",
 366         "`iterator.step_by(0)` panics nowadays",
 367     );
 368     store.register_removed(
 369         "unstable_as_slice",
 370         "`Vec::as_slice` has been stabilized in 1.7",
 371     );
 372     store.register_removed(
 373         "unstable_as_mut_slice",
 374         "`Vec::as_mut_slice` has been stabilized in 1.7",
 375     );
 376     store.register_removed(
 377         "str_to_string",
 378         "using `str::to_string` is common even today and specialization will likely happen soon",
 379     );
 380     store.register_removed(
 381         "string_to_string",
 382         "using `string::to_string` is common even today and specialization will likely happen soon",
 383     );
 384     store.register_removed(
 385         "misaligned_transmute",
 386         "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",
 387     );
 388     store.register_removed(
 389         "assign_ops",
 390         "using compound assignment operators (e.g. `+=`) is harmless",
 391     );
 392     store.register_removed(
 393         "if_let_redundant_pattern_matching",
 394         "this lint has been changed to redundant_pattern_matching",
 395     );
 396     store.register_removed(
 397         "unsafe_vector_initialization",
 398         "the replacement suggested by this lint had substantially different behavior",
 399     );
 400     // end deprecated lints, do not remove this comment, it’s used in `update_lints`
 401
 402     reg.register_late_lint_pass(box serde_api::Serde);
 403     reg.register_early_lint_pass(box utils::internal_lints::Clippy);
 404     reg.register_late_lint_pass(box utils::internal_lints::CompilerLintFunctions::new());
 405     reg.register_early_lint_pass(box utils::internal_lints::DefaultHashTypes::default());
 406     reg.register_late_lint_pass(box utils::internal_lints::LintWithoutLintPass::default());
 407     reg.register_late_lint_pass(box utils::inspector::Pass);
 408     reg.register_late_lint_pass(box utils::author::Pass);
 409     reg.register_late_lint_pass(box types::TypePass);
 410     reg.register_late_lint_pass(box booleans::NonminimalBool);
 411     reg.register_late_lint_pass(box eq_op::EqOp);
 412     reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold));
 413     reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse);
 414     reg.register_late_lint_pass(box enum_clike::UnportableVariant);
 415     reg.register_late_lint_pass(box excessive_precision::ExcessivePrecision);
 416     reg.register_late_lint_pass(box bit_mask::BitMask::new(conf.verbose_bit_mask_threshold));
 417     reg.register_late_lint_pass(box ptr::PointerPass);
 418     reg.register_late_lint_pass(box needless_bool::NeedlessBool);
 419     reg.register_late_lint_pass(box needless_bool::BoolComparison);
 420     reg.register_late_lint_pass(box approx_const::Pass);
 421     reg.register_late_lint_pass(box misc::Pass);
 422     reg.register_early_lint_pass(box precedence::Precedence);
 423     reg.register_early_lint_pass(box needless_continue::NeedlessContinue);
 424     reg.register_late_lint_pass(box eta_reduction::EtaPass);
 425     reg.register_late_lint_pass(box identity_op::IdentityOp);
 426     reg.register_late_lint_pass(box erasing_op::ErasingOp);
 427     reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatements);
 428     reg.register_late_lint_pass(box mut_mut::MutMut);
 429     reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed);
 430     reg.register_late_lint_pass(box len_zero::LenZero);
 431     reg.register_late_lint_pass(box attrs::AttrPass);
 432     reg.register_early_lint_pass(box collapsible_if::CollapsibleIf);
 433     reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition);
 434     reg.register_late_lint_pass(box unicode::Unicode);
 435     reg.register_late_lint_pass(box strings::StringAdd);
 436     reg.register_early_lint_pass(box returns::ReturnPass);
 437     reg.register_late_lint_pass(box implicit_return::Pass);
 438     reg.register_late_lint_pass(box methods::Pass);
 439     reg.register_late_lint_pass(box map_clone::Pass);
 440     reg.register_late_lint_pass(box shadow::Pass);
 441     reg.register_late_lint_pass(box types::LetPass);
 442     reg.register_late_lint_pass(box types::UnitCmp);
 443     reg.register_late_lint_pass(box loops::Pass);
 444     reg.register_late_lint_pass(box lifetimes::LifetimePass);
 445     reg.register_late_lint_pass(box entry::HashMapLint);
 446     reg.register_late_lint_pass(box ranges::Pass);
 447     reg.register_late_lint_pass(box types::CastPass);
 448     reg.register_late_lint_pass(box types::TypeComplexityPass::new(conf.type_complexity_threshold));
 449     reg.register_late_lint_pass(box matches::MatchPass);
 450     reg.register_late_lint_pass(box minmax::MinMaxPass);
 451     reg.register_late_lint_pass(box open_options::NonSensical);
 452     reg.register_late_lint_pass(box zero_div_zero::Pass);
 453     reg.register_late_lint_pass(box mutex_atomic::MutexAtomic);
 454     reg.register_late_lint_pass(box needless_update::Pass);
 455     reg.register_late_lint_pass(box needless_borrow::NeedlessBorrow::default());
 456     reg.register_late_lint_pass(box needless_borrowed_ref::NeedlessBorrowedRef);
 457     reg.register_late_lint_pass(box no_effect::Pass);
 458     reg.register_late_lint_pass(box temporary_assignment::Pass);
 459     reg.register_late_lint_pass(box transmute::Transmute);
 460     reg.register_late_lint_pass(
 461         box cyclomatic_complexity::CyclomaticComplexity::new(conf.cyclomatic_complexity_threshold)
 462     );
 463     reg.register_late_lint_pass(box escape::Pass{too_large_for_stack: conf.too_large_for_stack});
 464     reg.register_early_lint_pass(box misc_early::MiscEarly);
 465     reg.register_late_lint_pass(box panic_unimplemented::Pass);
 466     reg.register_late_lint_pass(box strings::StringLitAsBytes);
 467     reg.register_late_lint_pass(box derive::Derive);
 468     reg.register_late_lint_pass(box types::CharLitAsU8);
 469     reg.register_late_lint_pass(box vec::Pass);
 470     reg.register_late_lint_pass(box drop_bounds::Pass);
 471     reg.register_late_lint_pass(box drop_forget_ref::Pass);
 472     reg.register_late_lint_pass(box empty_enum::EmptyEnum);
 473     reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);
 474     reg.register_late_lint_pass(box types::InvalidUpcastComparisons);
 475     reg.register_late_lint_pass(box regex::Pass::default());
 476     reg.register_late_lint_pass(box copies::CopyAndPaste);
 477     reg.register_late_lint_pass(box copy_iterator::CopyIterator);
 478     reg.register_late_lint_pass(box format::Pass);
 479     reg.register_early_lint_pass(box formatting::Formatting);
 480     reg.register_late_lint_pass(box swap::Swap);
 481     reg.register_early_lint_pass(box if_not_else::IfNotElse);
 482     reg.register_early_lint_pass(box else_if_without_else::ElseIfWithoutElse);
 483     reg.register_early_lint_pass(box int_plus_one::IntPlusOne);
 484     reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional);
 485     reg.register_late_lint_pass(box unused_label::UnusedLabel);
 486     reg.register_late_lint_pass(box new_without_default::NewWithoutDefault::default());
 487     reg.register_late_lint_pass(box blacklisted_name::BlackListedName::new(
 488             conf.blacklisted_names.iter().cloned().collect()
 489     ));
 490     reg.register_late_lint_pass(box functions::Functions::new(conf.too_many_arguments_threshold, conf.too_many_lines_threshold));
 491     reg.register_early_lint_pass(box doc::Doc::new(conf.doc_valid_idents.iter().cloned().collect()));
 492     reg.register_late_lint_pass(box neg_multiply::NegMultiply);
 493     reg.register_early_lint_pass(box unsafe_removed_from_name::UnsafeNameRemoval);
 494     reg.register_late_lint_pass(box mem_discriminant::MemDiscriminant);
 495     reg.register_late_lint_pass(box mem_forget::MemForget);
 496     reg.register_late_lint_pass(box mem_replace::MemReplace);
 497     reg.register_late_lint_pass(box arithmetic::Arithmetic::default());
 498     reg.register_late_lint_pass(box assign_ops::AssignOps);
 499     reg.register_late_lint_pass(box let_if_seq::LetIfSeq);
 500     reg.register_late_lint_pass(box eval_order_dependence::EvalOrderDependence);
 501     reg.register_late_lint_pass(box missing_doc::MissingDoc::new());
 502     reg.register_late_lint_pass(box missing_inline::MissingInline);
 503     reg.register_late_lint_pass(box ok_if_let::Pass);
 504     reg.register_late_lint_pass(box redundant_pattern_matching::Pass);
 505     reg.register_late_lint_pass(box partialeq_ne_impl::Pass);
 506     reg.register_early_lint_pass(box reference::Pass);
 507     reg.register_early_lint_pass(box reference::DerefPass);
 508     reg.register_early_lint_pass(box double_parens::DoubleParens);
 509     reg.register_late_lint_pass(box unused_io_amount::UnusedIoAmount);
 510     reg.register_late_lint_pass(box large_enum_variant::LargeEnumVariant::new(conf.enum_variant_size_threshold));
 511     reg.register_late_lint_pass(box explicit_write::Pass);
 512     reg.register_late_lint_pass(box needless_pass_by_value::NeedlessPassByValue);
 513     reg.register_late_lint_pass(box trivially_copy_pass_by_ref::TriviallyCopyPassByRef::new(
 514             conf.trivial_copy_size_limit,
 515             &reg.sess.target,
 516     ));
 517     reg.register_early_lint_pass(box literal_representation::LiteralDigitGrouping);
 518     reg.register_early_lint_pass(box literal_representation::LiteralRepresentation::new(
 519             conf.literal_representation_threshold
 520     ));
 521     reg.register_late_lint_pass(box use_self::UseSelf);
 522     reg.register_late_lint_pass(box bytecount::ByteCount);
 523     reg.register_late_lint_pass(box infinite_iter::Pass);
 524     reg.register_late_lint_pass(box inline_fn_without_body::Pass);
 525     reg.register_late_lint_pass(box invalid_ref::InvalidRef);
 526     reg.register_late_lint_pass(box identity_conversion::IdentityConversion::default());
 527     reg.register_late_lint_pass(box types::ImplicitHasher);
 528     reg.register_early_lint_pass(box const_static_lifetime::StaticConst);
 529     reg.register_late_lint_pass(box fallible_impl_from::FallibleImplFrom);
 530     reg.register_late_lint_pass(box replace_consts::ReplaceConsts);
 531     reg.register_late_lint_pass(box types::UnitArg);
 532     reg.register_late_lint_pass(box double_comparison::Pass);
 533     reg.register_late_lint_pass(box question_mark::Pass);
 534     reg.register_late_lint_pass(box suspicious_trait_impl::SuspiciousImpl);
 535     reg.register_early_lint_pass(box cargo_common_metadata::Pass);
 536     reg.register_early_lint_pass(box multiple_crate_versions::Pass);
 537     reg.register_early_lint_pass(box wildcard_dependencies::Pass);
 538     reg.register_late_lint_pass(box map_unit_fn::Pass);
 539     reg.register_late_lint_pass(box infallible_destructuring_match::Pass);
 540     reg.register_late_lint_pass(box inherent_impl::Pass::default());
 541     reg.register_late_lint_pass(box neg_cmp_op_on_partial_ord::NoNegCompOpForPartialOrd);
 542     reg.register_late_lint_pass(box unwrap::Pass);
 543     reg.register_late_lint_pass(box duration_subsec::DurationSubsec);
 544     reg.register_late_lint_pass(box default_trait_access::DefaultTraitAccess);
 545     reg.register_late_lint_pass(box indexing_slicing::IndexingSlicing);
 546     reg.register_late_lint_pass(box non_copy_const::NonCopyConst);
 547     reg.register_late_lint_pass(box ptr_offset_with_cast::Pass);
 548     reg.register_late_lint_pass(box redundant_clone::RedundantClone);
 549     reg.register_late_lint_pass(box slow_vector_initialization::Pass);
 550     reg.register_late_lint_pass(box types::RefToMut);
 551     reg.register_late_lint_pass(box assertions_on_constants::AssertionsOnConstants);
 552     reg.register_late_lint_pass(box missing_const_for_fn::MissingConstForFn);
 553
 554     reg.register_lint_group("clippy::restriction", Some("clippy_restriction"), vec![
 555         arithmetic::FLOAT_ARITHMETIC,
 556         arithmetic::INTEGER_ARITHMETIC,
 557         dbg_macro::DBG_MACRO,
 558         else_if_without_else::ELSE_IF_WITHOUT_ELSE,
 559         implicit_return::IMPLICIT_RETURN,
 560         indexing_slicing::INDEXING_SLICING,
 561         inherent_impl::MULTIPLE_INHERENT_IMPL,
 562         literal_representation::DECIMAL_LITERAL_REPRESENTATION,
 563         matches::WILDCARD_ENUM_MATCH_ARM,
 564         mem_forget::MEM_FORGET,
 565         methods::CLONE_ON_REF_PTR,
 566         methods::OPTION_UNWRAP_USED,
 567         methods::RESULT_UNWRAP_USED,
 568         methods::WRONG_PUB_SELF_CONVENTION,
 569         misc::FLOAT_CMP_CONST,
 570         missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS,
 571         missing_inline::MISSING_INLINE_IN_PUBLIC_ITEMS,
 572         panic_unimplemented::UNIMPLEMENTED,
 573         shadow::SHADOW_REUSE,
 574         shadow::SHADOW_SAME,
 575         strings::STRING_ADD,
 576         write::PRINT_STDOUT,
 577         write::USE_DEBUG,
 578     ]);
 579
 580     reg.register_lint_group("clippy::pedantic", Some("clippy_pedantic"), vec![
 581         attrs::INLINE_ALWAYS,
 582         copies::MATCH_SAME_ARMS,
 583         copy_iterator::COPY_ITERATOR,
 584         default_trait_access::DEFAULT_TRAIT_ACCESS,
 585         derive::EXPL_IMPL_CLONE_ON_COPY,
 586         doc::DOC_MARKDOWN,
 587         empty_enum::EMPTY_ENUM,
 588         enum_glob_use::ENUM_GLOB_USE,
 589         enum_variants::MODULE_NAME_REPETITIONS,
 590         enum_variants::PUB_ENUM_VARIANT_NAMES,
 591         functions::TOO_MANY_LINES,
 592         if_not_else::IF_NOT_ELSE,
 593         infinite_iter::MAYBE_INFINITE_ITER,
 594         items_after_statements::ITEMS_AFTER_STATEMENTS,
 595         literal_representation::LARGE_DIGIT_GROUPS,
 596         loops::EXPLICIT_INTO_ITER_LOOP,
 597         loops::EXPLICIT_ITER_LOOP,
 598         matches::SINGLE_MATCH_ELSE,
 599         methods::FILTER_MAP,
 600         methods::MAP_FLATTEN,
 601         methods::OPTION_MAP_UNWRAP_OR,
 602         methods::OPTION_MAP_UNWRAP_OR_ELSE,
 603         methods::RESULT_MAP_UNWRAP_OR_ELSE,
 604         misc::USED_UNDERSCORE_BINDING,
 605         misc_early::UNSEPARATED_LITERAL_SUFFIX,
 606         mut_mut::MUT_MUT,
 607         needless_continue::NEEDLESS_CONTINUE,
 608         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 609         non_expressive_names::SIMILAR_NAMES,
 610         replace_consts::REPLACE_CONSTS,
 611         shadow::SHADOW_UNRELATED,
 612         strings::STRING_ADD_ASSIGN,
 613         types::CAST_POSSIBLE_TRUNCATION,
 614         types::CAST_POSSIBLE_WRAP,
 615         types::CAST_PRECISION_LOSS,
 616         types::CAST_SIGN_LOSS,
 617         types::INVALID_UPCAST_COMPARISONS,
 618         types::LINKEDLIST,
 619         unicode::NON_ASCII_LITERAL,
 620         unicode::UNICODE_NOT_NFC,
 621         use_self::USE_SELF,
 622     ]);
 623
 624     reg.register_lint_group("clippy::internal", Some("clippy_internal"), vec![
 625         utils::internal_lints::CLIPPY_LINTS_INTERNAL,
 626         utils::internal_lints::COMPILER_LINT_FUNCTIONS,
 627         utils::internal_lints::DEFAULT_HASH_TYPES,
 628         utils::internal_lints::LINT_WITHOUT_LINT_PASS,
 629     ]);
 630
 631     reg.register_lint_group("clippy::all", Some("clippy"), vec![
 632         approx_const::APPROX_CONSTANT,
 633         assertions_on_constants::ASSERTIONS_ON_CONSTANTS,
 634         assign_ops::ASSIGN_OP_PATTERN,
 635         assign_ops::MISREFACTORED_ASSIGN_OP,
 636         attrs::DEPRECATED_CFG_ATTR,
 637         attrs::DEPRECATED_SEMVER,
 638         attrs::UNKNOWN_CLIPPY_LINTS,
 639         attrs::USELESS_ATTRIBUTE,
 640         bit_mask::BAD_BIT_MASK,
 641         bit_mask::INEFFECTIVE_BIT_MASK,
 642         bit_mask::VERBOSE_BIT_MASK,
 643         blacklisted_name::BLACKLISTED_NAME,
 644         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 645         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 646         booleans::LOGIC_BUG,
 647         booleans::NONMINIMAL_BOOL,
 648         bytecount::NAIVE_BYTECOUNT,
 649         collapsible_if::COLLAPSIBLE_IF,
 650         const_static_lifetime::CONST_STATIC_LIFETIME,
 651         copies::IFS_SAME_COND,
 652         copies::IF_SAME_THEN_ELSE,
 653         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 654         derive::DERIVE_HASH_XOR_EQ,
 655         double_comparison::DOUBLE_COMPARISONS,
 656         double_parens::DOUBLE_PARENS,
 657         drop_bounds::DROP_BOUNDS,
 658         drop_forget_ref::DROP_COPY,
 659         drop_forget_ref::DROP_REF,
 660         drop_forget_ref::FORGET_COPY,
 661         drop_forget_ref::FORGET_REF,
 662         duration_subsec::DURATION_SUBSEC,
 663         entry::MAP_ENTRY,
 664         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 665         enum_variants::ENUM_VARIANT_NAMES,
 666         enum_variants::MODULE_INCEPTION,
 667         eq_op::EQ_OP,
 668         eq_op::OP_REF,
 669         erasing_op::ERASING_OP,
 670         escape::BOXED_LOCAL,
 671         eta_reduction::REDUNDANT_CLOSURE,
 672         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 673         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 674         excessive_precision::EXCESSIVE_PRECISION,
 675         explicit_write::EXPLICIT_WRITE,
 676         format::USELESS_FORMAT,
 677         formatting::POSSIBLE_MISSING_COMMA,
 678         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 679         formatting::SUSPICIOUS_ELSE_FORMATTING,
 680         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 681         functions::TOO_MANY_ARGUMENTS,
 682         identity_conversion::IDENTITY_CONVERSION,
 683         identity_op::IDENTITY_OP,
 684         indexing_slicing::OUT_OF_BOUNDS_INDEXING,
 685         infallible_destructuring_match::INFALLIBLE_DESTRUCTURING_MATCH,
 686         infinite_iter::INFINITE_ITER,
 687         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 688         int_plus_one::INT_PLUS_ONE,
 689         invalid_ref::INVALID_REF,
 690         large_enum_variant::LARGE_ENUM_VARIANT,
 691         len_zero::LEN_WITHOUT_IS_EMPTY,
 692         len_zero::LEN_ZERO,
 693         let_if_seq::USELESS_LET_IF_SEQ,
 694         lifetimes::EXTRA_UNUSED_LIFETIMES,
 695         lifetimes::NEEDLESS_LIFETIMES,
 696         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 697         literal_representation::MISTYPED_LITERAL_SUFFIXES,
 698         literal_representation::UNREADABLE_LITERAL,
 699         loops::EMPTY_LOOP,
 700         loops::EXPLICIT_COUNTER_LOOP,
 701         loops::FOR_KV_MAP,
 702         loops::FOR_LOOP_OVER_OPTION,
 703         loops::FOR_LOOP_OVER_RESULT,
 704         loops::ITER_NEXT_LOOP,
 705         loops::MANUAL_MEMCPY,
 706         loops::MUT_RANGE_BOUND,
 707         loops::NEEDLESS_COLLECT,
 708         loops::NEEDLESS_RANGE_LOOP,
 709         loops::NEVER_LOOP,
 710         loops::REVERSE_RANGE_LOOP,
 711         loops::UNUSED_COLLECT,
 712         loops::WHILE_IMMUTABLE_CONDITION,
 713         loops::WHILE_LET_LOOP,
 714         loops::WHILE_LET_ON_ITERATOR,
 715         map_clone::MAP_CLONE,
 716         map_unit_fn::OPTION_MAP_UNIT_FN,
 717         map_unit_fn::RESULT_MAP_UNIT_FN,
 718         matches::MATCH_AS_REF,
 719         matches::MATCH_BOOL,
 720         matches::MATCH_OVERLAPPING_ARM,
 721         matches::MATCH_REF_PATS,
 722         matches::MATCH_WILD_ERR_ARM,
 723         matches::SINGLE_MATCH,
 724         mem_discriminant::MEM_DISCRIMINANT_NON_ENUM,
 725         mem_replace::MEM_REPLACE_OPTION_WITH_NONE,
 726         methods::CHARS_LAST_CMP,
 727         methods::CHARS_NEXT_CMP,
 728         methods::CLONE_DOUBLE_REF,
 729         methods::CLONE_ON_COPY,
 730         methods::EXPECT_FUN_CALL,
 731         methods::FILTER_NEXT,
 732         methods::GET_UNWRAP,
 733         methods::INTO_ITER_ON_ARRAY,
 734         methods::INTO_ITER_ON_REF,
 735         methods::ITER_CLONED_COLLECT,
 736         methods::ITER_NTH,
 737         methods::ITER_SKIP_NEXT,
 738         methods::NEW_RET_NO_SELF,
 739         methods::OK_EXPECT,
 740         methods::OPTION_MAP_OR_NONE,
 741         methods::OR_FUN_CALL,
 742         methods::SEARCH_IS_SOME,
 743         methods::SHOULD_IMPLEMENT_TRAIT,
 744         methods::SINGLE_CHAR_PATTERN,
 745         methods::STRING_EXTEND_CHARS,
 746         methods::TEMPORARY_CSTRING_AS_PTR,
 747         methods::UNNECESSARY_FILTER_MAP,
 748         methods::UNNECESSARY_FOLD,
 749         methods::USELESS_ASREF,
 750         methods::WRONG_SELF_CONVENTION,
 751         minmax::MIN_MAX,
 752         misc::CMP_NAN,
 753         misc::CMP_OWNED,
 754         misc::FLOAT_CMP,
 755         misc::MODULO_ONE,
 756         misc::REDUNDANT_PATTERN,
 757         misc::SHORT_CIRCUIT_STATEMENT,
 758         misc::TOPLEVEL_REF_ARG,
 759         misc::ZERO_PTR,
 760         misc_early::BUILTIN_TYPE_SHADOW,
 761         misc_early::DOUBLE_NEG,
 762         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 763         misc_early::MIXED_CASE_HEX_LITERALS,
 764         misc_early::REDUNDANT_CLOSURE_CALL,
 765         misc_early::UNNEEDED_FIELD_PATTERN,
 766         misc_early::ZERO_PREFIXED_LITERAL,
 767         mut_reference::UNNECESSARY_MUT_PASSED,
 768         mutex_atomic::MUTEX_ATOMIC,
 769         needless_bool::BOOL_COMPARISON,
 770         needless_bool::NEEDLESS_BOOL,
 771         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 772         needless_update::NEEDLESS_UPDATE,
 773         neg_cmp_op_on_partial_ord::NEG_CMP_OP_ON_PARTIAL_ORD,
 774         neg_multiply::NEG_MULTIPLY,
 775         new_without_default::NEW_WITHOUT_DEFAULT,
 776         no_effect::NO_EFFECT,
 777         no_effect::UNNECESSARY_OPERATION,
 778         non_copy_const::BORROW_INTERIOR_MUTABLE_CONST,
 779         non_copy_const::DECLARE_INTERIOR_MUTABLE_CONST,
 780         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 781         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 782         ok_if_let::IF_LET_SOME_RESULT,
 783         open_options::NONSENSICAL_OPEN_OPTIONS,
 784         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 785         panic_unimplemented::PANIC_PARAMS,
 786         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 787         precedence::PRECEDENCE,
 788         ptr::CMP_NULL,
 789         ptr::MUT_FROM_REF,
 790         ptr::PTR_ARG,
 791         ptr_offset_with_cast::PTR_OFFSET_WITH_CAST,
 792         question_mark::QUESTION_MARK,
 793         ranges::ITERATOR_STEP_BY_ZERO,
 794         ranges::RANGE_MINUS_ONE,
 795         ranges::RANGE_PLUS_ONE,
 796         ranges::RANGE_ZIP_WITH_LEN,
 797         redundant_field_names::REDUNDANT_FIELD_NAMES,
 798         redundant_pattern_matching::REDUNDANT_PATTERN_MATCHING,
 799         reference::DEREF_ADDROF,
 800         reference::REF_IN_DEREF,
 801         regex::INVALID_REGEX,
 802         regex::REGEX_MACRO,
 803         regex::TRIVIAL_REGEX,
 804         returns::LET_AND_RETURN,
 805         returns::NEEDLESS_RETURN,
 806         returns::UNUSED_UNIT,
 807         serde_api::SERDE_API_MISUSE,
 808         slow_vector_initialization::SLOW_VECTOR_INITIALIZATION,
 809         strings::STRING_LIT_AS_BYTES,
 810         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 811         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 812         swap::ALMOST_SWAPPED,
 813         swap::MANUAL_SWAP,
 814         temporary_assignment::TEMPORARY_ASSIGNMENT,
 815         transmute::CROSSPOINTER_TRANSMUTE,
 816         transmute::TRANSMUTE_BYTES_TO_STR,
 817         transmute::TRANSMUTE_INT_TO_BOOL,
 818         transmute::TRANSMUTE_INT_TO_CHAR,
 819         transmute::TRANSMUTE_INT_TO_FLOAT,
 820         transmute::TRANSMUTE_PTR_TO_PTR,
 821         transmute::TRANSMUTE_PTR_TO_REF,
 822         transmute::USELESS_TRANSMUTE,
 823         transmute::WRONG_TRANSMUTE,
 824         trivially_copy_pass_by_ref::TRIVIALLY_COPY_PASS_BY_REF,
 825         types::ABSURD_EXTREME_COMPARISONS,
 826         types::BORROWED_BOX,
 827         types::BOX_VEC,
 828         types::CAST_LOSSLESS,
 829         types::CAST_PTR_ALIGNMENT,
 830         types::CAST_REF_TO_MUT,
 831         types::CHAR_LIT_AS_U8,
 832         types::FN_TO_NUMERIC_CAST,
 833         types::FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
 834         types::IMPLICIT_HASHER,
 835         types::LET_UNIT_VALUE,
 836         types::OPTION_OPTION,
 837         types::TYPE_COMPLEXITY,
 838         types::UNIT_ARG,
 839         types::UNIT_CMP,
 840         types::UNNECESSARY_CAST,
 841         types::VEC_BOX,
 842         unicode::ZERO_WIDTH_SPACE,
 843         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 844         unused_io_amount::UNUSED_IO_AMOUNT,
 845         unused_label::UNUSED_LABEL,
 846         vec::USELESS_VEC,
 847         write::PRINTLN_EMPTY_STRING,
 848         write::PRINT_LITERAL,
 849         write::PRINT_WITH_NEWLINE,
 850         write::WRITELN_EMPTY_STRING,
 851         write::WRITE_LITERAL,
 852         write::WRITE_WITH_NEWLINE,
 853         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 854     ]);
 855
 856     reg.register_lint_group("clippy::style", Some("clippy_style"), vec![
 857         assertions_on_constants::ASSERTIONS_ON_CONSTANTS,
 858         assign_ops::ASSIGN_OP_PATTERN,
 859         attrs::UNKNOWN_CLIPPY_LINTS,
 860         bit_mask::VERBOSE_BIT_MASK,
 861         blacklisted_name::BLACKLISTED_NAME,
 862         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 863         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 864         collapsible_if::COLLAPSIBLE_IF,
 865         const_static_lifetime::CONST_STATIC_LIFETIME,
 866         enum_variants::ENUM_VARIANT_NAMES,
 867         enum_variants::MODULE_INCEPTION,
 868         eq_op::OP_REF,
 869         eta_reduction::REDUNDANT_CLOSURE,
 870         excessive_precision::EXCESSIVE_PRECISION,
 871         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 872         formatting::SUSPICIOUS_ELSE_FORMATTING,
 873         infallible_destructuring_match::INFALLIBLE_DESTRUCTURING_MATCH,
 874         len_zero::LEN_WITHOUT_IS_EMPTY,
 875         len_zero::LEN_ZERO,
 876         let_if_seq::USELESS_LET_IF_SEQ,
 877         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 878         literal_representation::UNREADABLE_LITERAL,
 879         loops::EMPTY_LOOP,
 880         loops::FOR_KV_MAP,
 881         loops::NEEDLESS_RANGE_LOOP,
 882         loops::WHILE_LET_ON_ITERATOR,
 883         map_clone::MAP_CLONE,
 884         matches::MATCH_BOOL,
 885         matches::MATCH_OVERLAPPING_ARM,
 886         matches::MATCH_REF_PATS,
 887         matches::MATCH_WILD_ERR_ARM,
 888         matches::SINGLE_MATCH,
 889         mem_replace::MEM_REPLACE_OPTION_WITH_NONE,
 890         methods::CHARS_LAST_CMP,
 891         methods::GET_UNWRAP,
 892         methods::INTO_ITER_ON_REF,
 893         methods::ITER_CLONED_COLLECT,
 894         methods::ITER_SKIP_NEXT,
 895         methods::NEW_RET_NO_SELF,
 896         methods::OK_EXPECT,
 897         methods::OPTION_MAP_OR_NONE,
 898         methods::SHOULD_IMPLEMENT_TRAIT,
 899         methods::STRING_EXTEND_CHARS,
 900         methods::UNNECESSARY_FOLD,
 901         methods::WRONG_SELF_CONVENTION,
 902         misc::REDUNDANT_PATTERN,
 903         misc::TOPLEVEL_REF_ARG,
 904         misc::ZERO_PTR,
 905         misc_early::BUILTIN_TYPE_SHADOW,
 906         misc_early::DOUBLE_NEG,
 907         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 908         misc_early::MIXED_CASE_HEX_LITERALS,
 909         misc_early::UNNEEDED_FIELD_PATTERN,
 910         mut_reference::UNNECESSARY_MUT_PASSED,
 911         neg_multiply::NEG_MULTIPLY,
 912         new_without_default::NEW_WITHOUT_DEFAULT,
 913         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 914         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 915         ok_if_let::IF_LET_SOME_RESULT,
 916         panic_unimplemented::PANIC_PARAMS,
 917         ptr::CMP_NULL,
 918         ptr::PTR_ARG,
 919         question_mark::QUESTION_MARK,
 920         redundant_field_names::REDUNDANT_FIELD_NAMES,
 921         redundant_pattern_matching::REDUNDANT_PATTERN_MATCHING,
 922         regex::REGEX_MACRO,
 923         regex::TRIVIAL_REGEX,
 924         returns::LET_AND_RETURN,
 925         returns::NEEDLESS_RETURN,
 926         returns::UNUSED_UNIT,
 927         strings::STRING_LIT_AS_BYTES,
 928         types::FN_TO_NUMERIC_CAST,
 929         types::FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
 930         types::IMPLICIT_HASHER,
 931         types::LET_UNIT_VALUE,
 932         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 933         write::PRINTLN_EMPTY_STRING,
 934         write::PRINT_LITERAL,
 935         write::PRINT_WITH_NEWLINE,
 936         write::WRITELN_EMPTY_STRING,
 937         write::WRITE_LITERAL,
 938         write::WRITE_WITH_NEWLINE,
 939     ]);
 940
 941     reg.register_lint_group("clippy::complexity", Some("clippy_complexity"), vec![
 942         assign_ops::MISREFACTORED_ASSIGN_OP,
 943         attrs::DEPRECATED_CFG_ATTR,
 944         booleans::NONMINIMAL_BOOL,
 945         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 946         double_comparison::DOUBLE_COMPARISONS,
 947         double_parens::DOUBLE_PARENS,
 948         duration_subsec::DURATION_SUBSEC,
 949         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 950         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 951         explicit_write::EXPLICIT_WRITE,
 952         format::USELESS_FORMAT,
 953         functions::TOO_MANY_ARGUMENTS,
 954         identity_conversion::IDENTITY_CONVERSION,
 955         identity_op::IDENTITY_OP,
 956         int_plus_one::INT_PLUS_ONE,
 957         lifetimes::EXTRA_UNUSED_LIFETIMES,
 958         lifetimes::NEEDLESS_LIFETIMES,
 959         loops::EXPLICIT_COUNTER_LOOP,
 960         loops::MUT_RANGE_BOUND,
 961         loops::WHILE_LET_LOOP,
 962         map_unit_fn::OPTION_MAP_UNIT_FN,
 963         map_unit_fn::RESULT_MAP_UNIT_FN,
 964         matches::MATCH_AS_REF,
 965         methods::CHARS_NEXT_CMP,
 966         methods::CLONE_ON_COPY,
 967         methods::FILTER_NEXT,
 968         methods::SEARCH_IS_SOME,
 969         methods::UNNECESSARY_FILTER_MAP,
 970         methods::USELESS_ASREF,
 971         misc::SHORT_CIRCUIT_STATEMENT,
 972         misc_early::REDUNDANT_CLOSURE_CALL,
 973         misc_early::ZERO_PREFIXED_LITERAL,
 974         needless_bool::BOOL_COMPARISON,
 975         needless_bool::NEEDLESS_BOOL,
 976         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 977         needless_update::NEEDLESS_UPDATE,
 978         neg_cmp_op_on_partial_ord::NEG_CMP_OP_ON_PARTIAL_ORD,
 979         no_effect::NO_EFFECT,
 980         no_effect::UNNECESSARY_OPERATION,
 981         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 982         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 983         precedence::PRECEDENCE,
 984         ptr_offset_with_cast::PTR_OFFSET_WITH_CAST,
 985         ranges::RANGE_MINUS_ONE,
 986         ranges::RANGE_PLUS_ONE,
 987         ranges::RANGE_ZIP_WITH_LEN,
 988         reference::DEREF_ADDROF,
 989         reference::REF_IN_DEREF,
 990         swap::MANUAL_SWAP,
 991         temporary_assignment::TEMPORARY_ASSIGNMENT,
 992         transmute::CROSSPOINTER_TRANSMUTE,
 993         transmute::TRANSMUTE_BYTES_TO_STR,
 994         transmute::TRANSMUTE_INT_TO_BOOL,
 995         transmute::TRANSMUTE_INT_TO_CHAR,
 996         transmute::TRANSMUTE_INT_TO_FLOAT,
 997         transmute::TRANSMUTE_PTR_TO_PTR,
 998         transmute::TRANSMUTE_PTR_TO_REF,
 999         transmute::USELESS_TRANSMUTE,
1000         types::BORROWED_BOX,
1001         types::CAST_LOSSLESS,
1002         types::CHAR_LIT_AS_U8,
1003         types::OPTION_OPTION,
1004         types::TYPE_COMPLEXITY,
1005         types::UNIT_ARG,
1006         types::UNNECESSARY_CAST,
1007         types::VEC_BOX,
1008         unused_label::UNUSED_LABEL,
1009         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
1010     ]);
1011
1012     reg.register_lint_group("clippy::correctness", Some("clippy_correctness"), vec![
1013         approx_const::APPROX_CONSTANT,
1014         attrs::DEPRECATED_SEMVER,
1015         attrs::USELESS_ATTRIBUTE,
1016         bit_mask::BAD_BIT_MASK,
1017         bit_mask::INEFFECTIVE_BIT_MASK,
1018         booleans::LOGIC_BUG,
1019         copies::IFS_SAME_COND,
1020         copies::IF_SAME_THEN_ELSE,
1021         derive::DERIVE_HASH_XOR_EQ,
1022         drop_bounds::DROP_BOUNDS,
1023         drop_forget_ref::DROP_COPY,
1024         drop_forget_ref::DROP_REF,
1025         drop_forget_ref::FORGET_COPY,
1026         drop_forget_ref::FORGET_REF,
1027         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
1028         eq_op::EQ_OP,
1029         erasing_op::ERASING_OP,
1030         formatting::POSSIBLE_MISSING_COMMA,
1031         functions::NOT_UNSAFE_PTR_ARG_DEREF,
1032         indexing_slicing::OUT_OF_BOUNDS_INDEXING,
1033         infinite_iter::INFINITE_ITER,
1034         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
1035         invalid_ref::INVALID_REF,
1036         literal_representation::MISTYPED_LITERAL_SUFFIXES,
1037         loops::FOR_LOOP_OVER_OPTION,
1038         loops::FOR_LOOP_OVER_RESULT,
1039         loops::ITER_NEXT_LOOP,
1040         loops::NEVER_LOOP,
1041         loops::REVERSE_RANGE_LOOP,
1042         loops::WHILE_IMMUTABLE_CONDITION,
1043         mem_discriminant::MEM_DISCRIMINANT_NON_ENUM,
1044         methods::CLONE_DOUBLE_REF,
1045         methods::INTO_ITER_ON_ARRAY,
1046         methods::TEMPORARY_CSTRING_AS_PTR,
1047         minmax::MIN_MAX,
1048         misc::CMP_NAN,
1049         misc::FLOAT_CMP,
1050         misc::MODULO_ONE,
1051         non_copy_const::BORROW_INTERIOR_MUTABLE_CONST,
1052         non_copy_const::DECLARE_INTERIOR_MUTABLE_CONST,
1053         open_options::NONSENSICAL_OPEN_OPTIONS,
1054         ptr::MUT_FROM_REF,
1055         ranges::ITERATOR_STEP_BY_ZERO,
1056         regex::INVALID_REGEX,
1057         serde_api::SERDE_API_MISUSE,
1058         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
1059         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
1060         swap::ALMOST_SWAPPED,
1061         transmute::WRONG_TRANSMUTE,
1062         types::ABSURD_EXTREME_COMPARISONS,
1063         types::CAST_PTR_ALIGNMENT,
1064         types::CAST_REF_TO_MUT,
1065         types::UNIT_CMP,
1066         unicode::ZERO_WIDTH_SPACE,
1067         unused_io_amount::UNUSED_IO_AMOUNT,
1068     ]);
1069
1070     reg.register_lint_group("clippy::perf", Some("clippy_perf"), vec![
1071         bytecount::NAIVE_BYTECOUNT,
1072         entry::MAP_ENTRY,
1073         escape::BOXED_LOCAL,
1074         large_enum_variant::LARGE_ENUM_VARIANT,
1075         loops::MANUAL_MEMCPY,
1076         loops::NEEDLESS_COLLECT,
1077         loops::UNUSED_COLLECT,
1078         methods::EXPECT_FUN_CALL,
1079         methods::ITER_NTH,
1080         methods::OR_FUN_CALL,
1081         methods::SINGLE_CHAR_PATTERN,
1082         misc::CMP_OWNED,
1083         mutex_atomic::MUTEX_ATOMIC,
1084         slow_vector_initialization::SLOW_VECTOR_INITIALIZATION,
1085         trivially_copy_pass_by_ref::TRIVIALLY_COPY_PASS_BY_REF,
1086         types::BOX_VEC,
1087         vec::USELESS_VEC,
1088     ]);
1089
1090     reg.register_lint_group("clippy::cargo", Some("clippy_cargo"), vec![
1091         cargo_common_metadata::CARGO_COMMON_METADATA,
1092         multiple_crate_versions::MULTIPLE_CRATE_VERSIONS,
1093         wildcard_dependencies::WILDCARD_DEPENDENCIES,
1094     ]);
1095
1096     reg.register_lint_group("clippy::nursery", Some("clippy_nursery"), vec![
1097         attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
1098         fallible_impl_from::FALLIBLE_IMPL_FROM,
1099         missing_const_for_fn::MISSING_CONST_FOR_FN,
1100         mutex_atomic::MUTEX_INTEGER,
1101         needless_borrow::NEEDLESS_BORROW,
1102         redundant_clone::REDUNDANT_CLONE,
1103         unwrap::PANICKING_UNWRAP,
1104         unwrap::UNNECESSARY_UNWRAP,
1105     ]);
1106 }
1107
1108 /// Register renamed lints.
1109 ///
1110 /// Used in `./src/driver.rs`.
1111 pub fn register_renamed(ls: &mut rustc::lint::LintStore) {
1112     ls.register_renamed("clippy::stutter", "clippy::module_name_repetitions");
1113     ls.register_renamed("clippy::new_without_default_derive", "clippy::new_without_default");
1114 }
1115
1116 // only exists to let the dogfood integration test works.
1117 // Don't run clippy as an executable directly
1118 #[allow(dead_code)]
1119 fn main() {
1120     panic!("Please use the cargo-clippy executable");
1121 }