clippy_lints/src/lib.rs

   1 // error-pattern:cargo-clippy
   2
   3 #![feature(box_syntax)]
   4 #![feature(never_type)]
   5 #![feature(rustc_private)]
   6 #![feature(slice_patterns)]
   7 #![feature(stmt_expr_attributes)]
   8 #![feature(range_contains)]
   9 #![allow(clippy::missing_docs_in_private_items)]
  10 #![recursion_limit = "256"]
  11 #![warn(rust_2018_idioms, trivial_casts, trivial_numeric_casts)]
  12 #![feature(crate_visibility_modifier)]
  13
  14 // FIXME: switch to something more ergonomic here, once available.
  15 // (Currently there is no way to opt into sysroot crates without `extern crate`.)
  16 #[allow(unused_extern_crates)]
  17 extern crate fmt_macros;
  18 #[allow(unused_extern_crates)]
  19 extern crate rustc;
  20 #[allow(unused_extern_crates)]
  21 extern crate rustc_data_structures;
  22 #[allow(unused_extern_crates)]
  23 extern crate rustc_errors;
  24 #[allow(unused_extern_crates)]
  25 extern crate rustc_mir;
  26 #[allow(unused_extern_crates)]
  27 extern crate rustc_plugin;
  28 #[allow(unused_extern_crates)]
  29 extern crate rustc_target;
  30 #[allow(unused_extern_crates)]
  31 extern crate rustc_typeck;
  32 #[allow(unused_extern_crates)]
  33 extern crate syntax;
  34 #[allow(unused_extern_crates)]
  35 extern crate syntax_pos;
  36
  37 use toml;
  38
  39 /// Macro used to declare a Clippy lint.
  40 ///
  41 /// Every lint declaration consists of 4 parts:
  42 ///
  43 /// 1. The documentation, which is used for the website
  44 /// 2. The `LINT_NAME`. See [lint naming][lint_naming] on lint naming conventions.
  45 /// 3. The `lint_level`, which is a mapping from *one* of our lint groups to `Allow`, `Warn` or
  46 ///    `Deny`. The lint level here has nothing to do with what lint groups the lint is a part of.
  47 /// 4. The `description` that contains a short explanation on what's wrong with code where the
  48 ///    lint is triggered.
  49 ///
  50 /// Currently the categories `style`, `correctness`, `complexity` and `perf` are enabled by default.
  51 /// As said in the README.md of this repository, if the lint level mapping changes, please update
  52 /// README.md.
  53 ///
  54 /// # Example
  55 ///
  56 /// ```
  57 /// # #![feature(rustc_private)]
  58 /// # #[allow(unused_extern_crates)]
  59 /// # extern crate rustc;
  60 /// # #[macro_use]
  61 /// # use clippy_lints::declare_clippy_lint;
  62 /// use rustc::declare_tool_lint;
  63 ///
  64 /// declare_clippy_lint! {
  65 ///     /// **What it does:** Checks for ... (describe what the lint matches).
  66 ///     ///
  67 ///     /// **Why is this bad?** Supply the reason for linting the code.
  68 ///     ///
  69 ///     /// **Known problems:** None. (Or describe where it could go wrong.)
  70 ///     ///
  71 ///     /// **Example:**
  72 ///     ///
  73 ///     /// ```rust
  74 ///     /// // Bad
  75 ///     /// Insert a short example of code that triggers the lint
  76 ///     ///
  77 ///     /// // Good
  78 ///     /// Insert a short example of improved code that doesn't trigger the lint
  79 ///     /// ```
  80 ///     pub LINT_NAME,
  81 ///     pedantic,
  82 ///     "description"
  83 /// }
  84 /// ```
  85 /// [lint_naming]: https://rust-lang.github.io/rfcs/0344-conventions-galore.html#lints
  86 #[macro_export]
  87 macro_rules! declare_clippy_lint {
  88     { $(#[$attr:meta])* pub $name:tt, style, $description:tt } => {
  89         declare_tool_lint! {
  90             $(#[$attr])* pub clippy::$name, Warn, $description, report_in_external_macro: true
  91         }
  92     };
  93     { $(#[$attr:meta])* pub $name:tt, correctness, $description:tt } => {
  94         declare_tool_lint! {
  95             $(#[$attr])* pub clippy::$name, Deny, $description, report_in_external_macro: true
  96         }
  97     };
  98     { $(#[$attr:meta])* pub $name:tt, complexity, $description:tt } => {
  99         declare_tool_lint! {
 100             pub clippy::$name, Warn, $description, report_in_external_macro: true
 101         }
 102     };
 103     { $(#[$attr:meta])* pub $name:tt, perf, $description:tt } => {
 104         declare_tool_lint! {
 105             pub clippy::$name, Warn, $description, report_in_external_macro: true
 106         }
 107     };
 108     { $(#[$attr:meta])* pub $name:tt, pedantic, $description:tt } => {
 109         declare_tool_lint! {
 110             pub clippy::$name, Allow, $description, report_in_external_macro: true
 111         }
 112     };
 113     { $(#[$attr:meta])* pub $name:tt, restriction, $description:tt } => {
 114         declare_tool_lint! {
 115             pub clippy::$name, Allow, $description, report_in_external_macro: true
 116         }
 117     };
 118     { $(#[$attr:meta])* pub $name:tt, cargo, $description:tt } => {
 119         declare_tool_lint! {
 120             pub clippy::$name, Allow, $description, report_in_external_macro: true
 121         }
 122     };
 123     { $(#[$attr:meta])* pub $name:tt, nursery, $description:tt } => {
 124         declare_tool_lint! {
 125             pub clippy::$name, Allow, $description, report_in_external_macro: true
 126         }
 127     };
 128     { $(#[$attr:meta])* pub $name:tt, internal, $description:tt } => {
 129         declare_tool_lint! {
 130             pub clippy::$name, Allow, $description, report_in_external_macro: true
 131         }
 132     };
 133     { $(#[$attr:meta])* pub $name:tt, internal_warn, $description:tt } => {
 134         declare_tool_lint! {
 135             pub clippy::$name, Warn, $description, report_in_external_macro: true
 136         }
 137     };
 138 }
 139
 140 mod consts;
 141 #[macro_use]
 142 mod utils;
 143
 144 // begin lints modules, do not remove this comment, it’s used in `update_lints`
 145 pub mod approx_const;
 146 pub mod arithmetic;
 147 pub mod assertions_on_constants;
 148 pub mod assign_ops;
 149 pub mod attrs;
 150 pub mod bit_mask;
 151 pub mod blacklisted_name;
 152 pub mod block_in_if_condition;
 153 pub mod booleans;
 154 pub mod bytecount;
 155 pub mod cargo_common_metadata;
 156 pub mod cognitive_complexity;
 157 pub mod collapsible_if;
 158 pub mod const_static_lifetime;
 159 pub mod copies;
 160 pub mod copy_iterator;
 161 pub mod dbg_macro;
 162 pub mod default_trait_access;
 163 pub mod derive;
 164 pub mod doc;
 165 pub mod double_comparison;
 166 pub mod double_parens;
 167 pub mod drop_bounds;
 168 pub mod drop_forget_ref;
 169 pub mod duration_subsec;
 170 pub mod else_if_without_else;
 171 pub mod empty_enum;
 172 pub mod entry;
 173 pub mod enum_clike;
 174 pub mod enum_glob_use;
 175 pub mod enum_variants;
 176 pub mod eq_op;
 177 pub mod erasing_op;
 178 pub mod escape;
 179 pub mod eta_reduction;
 180 pub mod eval_order_dependence;
 181 pub mod excessive_precision;
 182 pub mod explicit_write;
 183 pub mod fallible_impl_from;
 184 pub mod format;
 185 pub mod formatting;
 186 pub mod functions;
 187 pub mod identity_conversion;
 188 pub mod identity_op;
 189 pub mod if_not_else;
 190 pub mod implicit_return;
 191 pub mod indexing_slicing;
 192 pub mod infallible_destructuring_match;
 193 pub mod infinite_iter;
 194 pub mod inherent_impl;
 195 pub mod inline_fn_without_body;
 196 pub mod int_plus_one;
 197 pub mod invalid_ref;
 198 pub mod items_after_statements;
 199 pub mod large_enum_variant;
 200 pub mod len_zero;
 201 pub mod let_if_seq;
 202 pub mod lifetimes;
 203 pub mod literal_representation;
 204 pub mod loops;
 205 pub mod map_clone;
 206 pub mod map_unit_fn;
 207 pub mod matches;
 208 pub mod mem_discriminant;
 209 pub mod mem_forget;
 210 pub mod mem_replace;
 211 pub mod methods;
 212 pub mod minmax;
 213 pub mod misc;
 214 pub mod misc_early;
 215 pub mod missing_const_for_fn;
 216 pub mod missing_doc;
 217 pub mod missing_inline;
 218 pub mod multiple_crate_versions;
 219 pub mod mut_mut;
 220 pub mod mut_reference;
 221 pub mod mutex_atomic;
 222 pub mod needless_bool;
 223 pub mod needless_borrow;
 224 pub mod needless_borrowed_ref;
 225 pub mod needless_continue;
 226 pub mod needless_pass_by_value;
 227 pub mod needless_update;
 228 pub mod neg_cmp_op_on_partial_ord;
 229 pub mod neg_multiply;
 230 pub mod new_without_default;
 231 pub mod no_effect;
 232 pub mod non_copy_const;
 233 pub mod non_expressive_names;
 234 pub mod ok_if_let;
 235 pub mod open_options;
 236 pub mod overflow_check_conditional;
 237 pub mod panic_unimplemented;
 238 pub mod partialeq_ne_impl;
 239 pub mod precedence;
 240 pub mod ptr;
 241 pub mod ptr_offset_with_cast;
 242 pub mod question_mark;
 243 pub mod ranges;
 244 pub mod redundant_clone;
 245 pub mod redundant_field_names;
 246 pub mod redundant_pattern_matching;
 247 pub mod reference;
 248 pub mod regex;
 249 pub mod replace_consts;
 250 pub mod returns;
 251 pub mod serde_api;
 252 pub mod shadow;
 253 pub mod slow_vector_initialization;
 254 pub mod strings;
 255 pub mod suspicious_trait_impl;
 256 pub mod swap;
 257 pub mod temporary_assignment;
 258 pub mod transmute;
 259 pub mod trivially_copy_pass_by_ref;
 260 pub mod types;
 261 pub mod unicode;
 262 pub mod unsafe_removed_from_name;
 263 pub mod unused_io_amount;
 264 pub mod unused_label;
 265 pub mod unwrap;
 266 pub mod use_self;
 267 pub mod vec;
 268 pub mod wildcard_dependencies;
 269 pub mod write;
 270 pub mod zero_div_zero;
 271 // end lints modules, do not remove this comment, it’s used in `update_lints`
 272
 273 pub use crate::utils::conf::Conf;
 274
 275 mod reexport {
 276     crate use syntax::ast::Name;
 277 }
 278
 279 /// Register all pre expansion lints
 280 ///
 281 /// Pre-expansion lints run before any macro expansion has happened.
 282 ///
 283 /// Note that due to the architechture of the compiler, currently `cfg_attr` attributes on crate
 284 /// level (i.e `#![cfg_attr(...)]`) will still be expanded even when using a pre-expansion pass.
 285 ///
 286 /// Used in `./src/driver.rs`.
 287 pub fn register_pre_expansion_lints(
 288     session: &rustc::session::Session,
 289     store: &mut rustc::lint::LintStore,
 290     conf: &Conf,
 291 ) {
 292     store.register_pre_expansion_pass(Some(session), true, false, box write::Pass);
 293     store.register_pre_expansion_pass(
 294         Some(session),
 295         true,
 296         false,
 297         box redundant_field_names::RedundantFieldNames,
 298     );
 299     store.register_pre_expansion_pass(
 300         Some(session),
 301         true,
 302         false,
 303         box non_expressive_names::NonExpressiveNames {
 304             single_char_binding_names_threshold: conf.single_char_binding_names_threshold,
 305         },
 306     );
 307     store.register_pre_expansion_pass(Some(session), true, false, box attrs::CfgAttrPass);
 308     store.register_pre_expansion_pass(Some(session), true, false, box dbg_macro::Pass);
 309 }
 310
 311 #[doc(hidden)]
 312 pub fn read_conf(reg: &rustc_plugin::Registry<'_>) -> Conf {
 313     match utils::conf::file_from_args(reg.args()) {
 314         Ok(file_name) => {
 315             // if the user specified a file, it must exist, otherwise default to `clippy.toml` but
 316             // do not require the file to exist
 317             let file_name = if let Some(file_name) = file_name {
 318                 Some(file_name)
 319             } else {
 320                 match utils::conf::lookup_conf_file() {
 321                     Ok(path) => path,
 322                     Err(error) => {
 323                         reg.sess
 324                             .struct_err(&format!("error finding Clippy's configuration file: {}", error))
 325                             .emit();
 326                         None
 327                     },
 328                 }
 329             };
 330
 331             let file_name = file_name.map(|file_name| {
 332                 if file_name.is_relative() {
 333                     reg.sess
 334                         .local_crate_source_file
 335                         .as_ref()
 336                         .and_then(|file| std::path::Path::new(&file).parent().map(std::path::Path::to_path_buf))
 337                         .unwrap_or_default()
 338                         .join(file_name)
 339                 } else {
 340                     file_name
 341                 }
 342             });
 343
 344             let (conf, errors) = utils::conf::read(file_name.as_ref().map(std::convert::AsRef::as_ref));
 345
 346             // all conf errors are non-fatal, we just use the default conf in case of error
 347             for error in errors {
 348                 reg.sess
 349                     .struct_err(&format!(
 350                         "error reading Clippy's configuration file `{}`: {}",
 351                         file_name.as_ref().and_then(|p| p.to_str()).unwrap_or(""),
 352                         error
 353                     ))
 354                     .emit();
 355             }
 356
 357             conf
 358         },
 359         Err((err, span)) => {
 360             reg.sess
 361                 .struct_span_err(span, err)
 362                 .span_note(span, "Clippy will use default configuration")
 363                 .emit();
 364             toml::from_str("").expect("we never error on empty config files")
 365         },
 366     }
 367 }
 368
 369 /// Register all lints and lint groups with the rustc plugin registry
 370 ///
 371 /// Used in `./src/driver.rs`.
 372 #[allow(clippy::too_many_lines)]
 373 #[rustfmt::skip]
 374 pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
 375     let mut store = reg.sess.lint_store.borrow_mut();
 376     // begin deprecated lints, do not remove this comment, it’s used in `update_lints`
 377     store.register_removed(
 378         "should_assert_eq",
 379         "`assert!()` will be more flexible with RFC 2011",
 380     );
 381     store.register_removed(
 382         "extend_from_slice",
 383         "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice",
 384     );
 385     store.register_removed(
 386         "range_step_by_zero",
 387         "`iterator.step_by(0)` panics nowadays",
 388     );
 389     store.register_removed(
 390         "unstable_as_slice",
 391         "`Vec::as_slice` has been stabilized in 1.7",
 392     );
 393     store.register_removed(
 394         "unstable_as_mut_slice",
 395         "`Vec::as_mut_slice` has been stabilized in 1.7",
 396     );
 397     store.register_removed(
 398         "str_to_string",
 399         "using `str::to_string` is common even today and specialization will likely happen soon",
 400     );
 401     store.register_removed(
 402         "string_to_string",
 403         "using `string::to_string` is common even today and specialization will likely happen soon",
 404     );
 405     store.register_removed(
 406         "misaligned_transmute",
 407         "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",
 408     );
 409     store.register_removed(
 410         "assign_ops",
 411         "using compound assignment operators (e.g., `+=`) is harmless",
 412     );
 413     store.register_removed(
 414         "if_let_redundant_pattern_matching",
 415         "this lint has been changed to redundant_pattern_matching",
 416     );
 417     store.register_removed(
 418         "unsafe_vector_initialization",
 419         "the replacement suggested by this lint had substantially different behavior",
 420     );
 421     // end deprecated lints, do not remove this comment, it’s used in `update_lints`
 422
 423     reg.register_late_lint_pass(box serde_api::Serde);
 424     reg.register_early_lint_pass(box utils::internal_lints::Clippy);
 425     reg.register_late_lint_pass(box utils::internal_lints::CompilerLintFunctions::new());
 426     reg.register_early_lint_pass(box utils::internal_lints::DefaultHashTypes::default());
 427     reg.register_late_lint_pass(box utils::internal_lints::LintWithoutLintPass::default());
 428     reg.register_late_lint_pass(box utils::inspector::Pass);
 429     reg.register_late_lint_pass(box utils::author::Pass);
 430     reg.register_late_lint_pass(box types::TypePass);
 431     reg.register_late_lint_pass(box booleans::NonminimalBool);
 432     reg.register_late_lint_pass(box eq_op::EqOp);
 433     reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold));
 434     reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse);
 435     reg.register_late_lint_pass(box enum_clike::UnportableVariant);
 436     reg.register_late_lint_pass(box excessive_precision::ExcessivePrecision);
 437     reg.register_late_lint_pass(box bit_mask::BitMask::new(conf.verbose_bit_mask_threshold));
 438     reg.register_late_lint_pass(box ptr::PointerPass);
 439     reg.register_late_lint_pass(box needless_bool::NeedlessBool);
 440     reg.register_late_lint_pass(box needless_bool::BoolComparison);
 441     reg.register_late_lint_pass(box approx_const::Pass);
 442     reg.register_late_lint_pass(box misc::Pass);
 443     reg.register_early_lint_pass(box precedence::Precedence);
 444     reg.register_early_lint_pass(box needless_continue::NeedlessContinue);
 445     reg.register_late_lint_pass(box eta_reduction::EtaPass);
 446     reg.register_late_lint_pass(box identity_op::IdentityOp);
 447     reg.register_late_lint_pass(box erasing_op::ErasingOp);
 448     reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatements);
 449     reg.register_late_lint_pass(box mut_mut::MutMut);
 450     reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed);
 451     reg.register_late_lint_pass(box len_zero::LenZero);
 452     reg.register_late_lint_pass(box attrs::AttrPass);
 453     reg.register_early_lint_pass(box collapsible_if::CollapsibleIf);
 454     reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition);
 455     reg.register_late_lint_pass(box unicode::Unicode);
 456     reg.register_late_lint_pass(box strings::StringAdd);
 457     reg.register_early_lint_pass(box returns::ReturnPass);
 458     reg.register_late_lint_pass(box implicit_return::Pass);
 459     reg.register_late_lint_pass(box methods::Pass);
 460     reg.register_late_lint_pass(box map_clone::Pass);
 461     reg.register_late_lint_pass(box shadow::Pass);
 462     reg.register_late_lint_pass(box types::LetPass);
 463     reg.register_late_lint_pass(box types::UnitCmp);
 464     reg.register_late_lint_pass(box loops::Pass);
 465     reg.register_late_lint_pass(box lifetimes::LifetimePass);
 466     reg.register_late_lint_pass(box entry::HashMapLint);
 467     reg.register_late_lint_pass(box ranges::Pass);
 468     reg.register_late_lint_pass(box types::CastPass);
 469     reg.register_late_lint_pass(box types::TypeComplexityPass::new(conf.type_complexity_threshold));
 470     reg.register_late_lint_pass(box matches::MatchPass);
 471     reg.register_late_lint_pass(box minmax::MinMaxPass);
 472     reg.register_late_lint_pass(box open_options::NonSensical);
 473     reg.register_late_lint_pass(box zero_div_zero::Pass);
 474     reg.register_late_lint_pass(box mutex_atomic::MutexAtomic);
 475     reg.register_late_lint_pass(box needless_update::Pass);
 476     reg.register_late_lint_pass(box needless_borrow::NeedlessBorrow::default());
 477     reg.register_late_lint_pass(box needless_borrowed_ref::NeedlessBorrowedRef);
 478     reg.register_late_lint_pass(box no_effect::Pass);
 479     reg.register_late_lint_pass(box temporary_assignment::Pass);
 480     reg.register_late_lint_pass(box transmute::Transmute);
 481     reg.register_late_lint_pass(
 482         box cognitive_complexity::CognitiveComplexity::new(conf.cognitive_complexity_threshold)
 483     );
 484     reg.register_late_lint_pass(box escape::Pass{too_large_for_stack: conf.too_large_for_stack});
 485     reg.register_early_lint_pass(box misc_early::MiscEarly);
 486     reg.register_late_lint_pass(box panic_unimplemented::Pass);
 487     reg.register_late_lint_pass(box strings::StringLitAsBytes);
 488     reg.register_late_lint_pass(box derive::Derive);
 489     reg.register_late_lint_pass(box types::CharLitAsU8);
 490     reg.register_late_lint_pass(box vec::Pass);
 491     reg.register_late_lint_pass(box drop_bounds::Pass);
 492     reg.register_late_lint_pass(box drop_forget_ref::Pass);
 493     reg.register_late_lint_pass(box empty_enum::EmptyEnum);
 494     reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);
 495     reg.register_late_lint_pass(box types::InvalidUpcastComparisons);
 496     reg.register_late_lint_pass(box regex::Pass::default());
 497     reg.register_late_lint_pass(box copies::CopyAndPaste);
 498     reg.register_late_lint_pass(box copy_iterator::CopyIterator);
 499     reg.register_late_lint_pass(box format::Pass);
 500     reg.register_early_lint_pass(box formatting::Formatting);
 501     reg.register_late_lint_pass(box swap::Swap);
 502     reg.register_early_lint_pass(box if_not_else::IfNotElse);
 503     reg.register_early_lint_pass(box else_if_without_else::ElseIfWithoutElse);
 504     reg.register_early_lint_pass(box int_plus_one::IntPlusOne);
 505     reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional);
 506     reg.register_late_lint_pass(box unused_label::UnusedLabel);
 507     reg.register_late_lint_pass(box new_without_default::NewWithoutDefault::default());
 508     reg.register_late_lint_pass(box blacklisted_name::BlackListedName::new(
 509             conf.blacklisted_names.iter().cloned().collect()
 510     ));
 511     reg.register_late_lint_pass(box functions::Functions::new(conf.too_many_arguments_threshold, conf.too_many_lines_threshold));
 512     reg.register_early_lint_pass(box doc::Doc::new(conf.doc_valid_idents.iter().cloned().collect()));
 513     reg.register_late_lint_pass(box neg_multiply::NegMultiply);
 514     reg.register_early_lint_pass(box unsafe_removed_from_name::UnsafeNameRemoval);
 515     reg.register_late_lint_pass(box mem_discriminant::MemDiscriminant);
 516     reg.register_late_lint_pass(box mem_forget::MemForget);
 517     reg.register_late_lint_pass(box mem_replace::MemReplace);
 518     reg.register_late_lint_pass(box arithmetic::Arithmetic::default());
 519     reg.register_late_lint_pass(box assign_ops::AssignOps);
 520     reg.register_late_lint_pass(box let_if_seq::LetIfSeq);
 521     reg.register_late_lint_pass(box eval_order_dependence::EvalOrderDependence);
 522     reg.register_late_lint_pass(box missing_doc::MissingDoc::new());
 523     reg.register_late_lint_pass(box missing_inline::MissingInline);
 524     reg.register_late_lint_pass(box ok_if_let::Pass);
 525     reg.register_late_lint_pass(box redundant_pattern_matching::Pass);
 526     reg.register_late_lint_pass(box partialeq_ne_impl::Pass);
 527     reg.register_early_lint_pass(box reference::Pass);
 528     reg.register_early_lint_pass(box reference::DerefPass);
 529     reg.register_early_lint_pass(box double_parens::DoubleParens);
 530     reg.register_late_lint_pass(box unused_io_amount::UnusedIoAmount);
 531     reg.register_late_lint_pass(box large_enum_variant::LargeEnumVariant::new(conf.enum_variant_size_threshold));
 532     reg.register_late_lint_pass(box explicit_write::Pass);
 533     reg.register_late_lint_pass(box needless_pass_by_value::NeedlessPassByValue);
 534     reg.register_late_lint_pass(box trivially_copy_pass_by_ref::TriviallyCopyPassByRef::new(
 535             conf.trivial_copy_size_limit,
 536             &reg.sess.target,
 537     ));
 538     reg.register_early_lint_pass(box literal_representation::LiteralDigitGrouping);
 539     reg.register_early_lint_pass(box literal_representation::LiteralRepresentation::new(
 540             conf.literal_representation_threshold
 541     ));
 542     reg.register_late_lint_pass(box use_self::UseSelf);
 543     reg.register_late_lint_pass(box bytecount::ByteCount);
 544     reg.register_late_lint_pass(box infinite_iter::Pass);
 545     reg.register_late_lint_pass(box inline_fn_without_body::Pass);
 546     reg.register_late_lint_pass(box invalid_ref::InvalidRef);
 547     reg.register_late_lint_pass(box identity_conversion::IdentityConversion::default());
 548     reg.register_late_lint_pass(box types::ImplicitHasher);
 549     reg.register_early_lint_pass(box const_static_lifetime::StaticConst);
 550     reg.register_late_lint_pass(box fallible_impl_from::FallibleImplFrom);
 551     reg.register_late_lint_pass(box replace_consts::ReplaceConsts);
 552     reg.register_late_lint_pass(box types::UnitArg);
 553     reg.register_late_lint_pass(box double_comparison::Pass);
 554     reg.register_late_lint_pass(box question_mark::Pass);
 555     reg.register_late_lint_pass(box suspicious_trait_impl::SuspiciousImpl);
 556     reg.register_early_lint_pass(box cargo_common_metadata::Pass);
 557     reg.register_early_lint_pass(box multiple_crate_versions::Pass);
 558     reg.register_early_lint_pass(box wildcard_dependencies::Pass);
 559     reg.register_late_lint_pass(box map_unit_fn::Pass);
 560     reg.register_late_lint_pass(box infallible_destructuring_match::Pass);
 561     reg.register_late_lint_pass(box inherent_impl::Pass::default());
 562     reg.register_late_lint_pass(box neg_cmp_op_on_partial_ord::NoNegCompOpForPartialOrd);
 563     reg.register_late_lint_pass(box unwrap::Pass);
 564     reg.register_late_lint_pass(box duration_subsec::DurationSubsec);
 565     reg.register_late_lint_pass(box default_trait_access::DefaultTraitAccess);
 566     reg.register_late_lint_pass(box indexing_slicing::IndexingSlicing);
 567     reg.register_late_lint_pass(box non_copy_const::NonCopyConst);
 568     reg.register_late_lint_pass(box ptr_offset_with_cast::Pass);
 569     reg.register_late_lint_pass(box redundant_clone::RedundantClone);
 570     reg.register_late_lint_pass(box slow_vector_initialization::Pass);
 571     reg.register_late_lint_pass(box types::RefToMut);
 572     reg.register_late_lint_pass(box assertions_on_constants::AssertionsOnConstants);
 573     reg.register_late_lint_pass(box missing_const_for_fn::MissingConstForFn);
 574
 575     reg.register_lint_group("clippy::restriction", Some("clippy_restriction"), vec![
 576         arithmetic::FLOAT_ARITHMETIC,
 577         arithmetic::INTEGER_ARITHMETIC,
 578         dbg_macro::DBG_MACRO,
 579         else_if_without_else::ELSE_IF_WITHOUT_ELSE,
 580         implicit_return::IMPLICIT_RETURN,
 581         indexing_slicing::INDEXING_SLICING,
 582         inherent_impl::MULTIPLE_INHERENT_IMPL,
 583         literal_representation::DECIMAL_LITERAL_REPRESENTATION,
 584         matches::WILDCARD_ENUM_MATCH_ARM,
 585         mem_forget::MEM_FORGET,
 586         methods::CLONE_ON_REF_PTR,
 587         methods::GET_UNWRAP,
 588         methods::OPTION_UNWRAP_USED,
 589         methods::RESULT_UNWRAP_USED,
 590         methods::WRONG_PUB_SELF_CONVENTION,
 591         misc::FLOAT_CMP_CONST,
 592         missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS,
 593         missing_inline::MISSING_INLINE_IN_PUBLIC_ITEMS,
 594         panic_unimplemented::UNIMPLEMENTED,
 595         shadow::SHADOW_REUSE,
 596         shadow::SHADOW_SAME,
 597         strings::STRING_ADD,
 598         write::PRINT_STDOUT,
 599         write::USE_DEBUG,
 600     ]);
 601
 602     reg.register_lint_group("clippy::pedantic", Some("clippy_pedantic"), vec![
 603         attrs::INLINE_ALWAYS,
 604         copies::MATCH_SAME_ARMS,
 605         copy_iterator::COPY_ITERATOR,
 606         default_trait_access::DEFAULT_TRAIT_ACCESS,
 607         derive::EXPL_IMPL_CLONE_ON_COPY,
 608         doc::DOC_MARKDOWN,
 609         empty_enum::EMPTY_ENUM,
 610         enum_glob_use::ENUM_GLOB_USE,
 611         enum_variants::MODULE_NAME_REPETITIONS,
 612         enum_variants::PUB_ENUM_VARIANT_NAMES,
 613         functions::TOO_MANY_LINES,
 614         if_not_else::IF_NOT_ELSE,
 615         infinite_iter::MAYBE_INFINITE_ITER,
 616         items_after_statements::ITEMS_AFTER_STATEMENTS,
 617         literal_representation::LARGE_DIGIT_GROUPS,
 618         loops::EXPLICIT_INTO_ITER_LOOP,
 619         loops::EXPLICIT_ITER_LOOP,
 620         matches::SINGLE_MATCH_ELSE,
 621         methods::FILTER_MAP,
 622         methods::MAP_FLATTEN,
 623         methods::OPTION_MAP_UNWRAP_OR,
 624         methods::OPTION_MAP_UNWRAP_OR_ELSE,
 625         methods::RESULT_MAP_UNWRAP_OR_ELSE,
 626         misc::USED_UNDERSCORE_BINDING,
 627         misc_early::UNSEPARATED_LITERAL_SUFFIX,
 628         mut_mut::MUT_MUT,
 629         needless_continue::NEEDLESS_CONTINUE,
 630         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 631         non_expressive_names::SIMILAR_NAMES,
 632         replace_consts::REPLACE_CONSTS,
 633         shadow::SHADOW_UNRELATED,
 634         strings::STRING_ADD_ASSIGN,
 635         types::CAST_POSSIBLE_TRUNCATION,
 636         types::CAST_POSSIBLE_WRAP,
 637         types::CAST_PRECISION_LOSS,
 638         types::CAST_SIGN_LOSS,
 639         types::INVALID_UPCAST_COMPARISONS,
 640         types::LINKEDLIST,
 641         unicode::NON_ASCII_LITERAL,
 642         unicode::UNICODE_NOT_NFC,
 643         use_self::USE_SELF,
 644     ]);
 645
 646     reg.register_lint_group("clippy::internal", Some("clippy_internal"), vec![
 647         utils::internal_lints::CLIPPY_LINTS_INTERNAL,
 648         utils::internal_lints::COMPILER_LINT_FUNCTIONS,
 649         utils::internal_lints::DEFAULT_HASH_TYPES,
 650         utils::internal_lints::LINT_WITHOUT_LINT_PASS,
 651     ]);
 652
 653     reg.register_lint_group("clippy::all", Some("clippy"), vec![
 654         approx_const::APPROX_CONSTANT,
 655         assertions_on_constants::ASSERTIONS_ON_CONSTANTS,
 656         assign_ops::ASSIGN_OP_PATTERN,
 657         assign_ops::MISREFACTORED_ASSIGN_OP,
 658         attrs::DEPRECATED_CFG_ATTR,
 659         attrs::DEPRECATED_SEMVER,
 660         attrs::UNKNOWN_CLIPPY_LINTS,
 661         attrs::USELESS_ATTRIBUTE,
 662         bit_mask::BAD_BIT_MASK,
 663         bit_mask::INEFFECTIVE_BIT_MASK,
 664         bit_mask::VERBOSE_BIT_MASK,
 665         blacklisted_name::BLACKLISTED_NAME,
 666         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 667         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 668         booleans::LOGIC_BUG,
 669         booleans::NONMINIMAL_BOOL,
 670         bytecount::NAIVE_BYTECOUNT,
 671         cognitive_complexity::COGNITIVE_COMPLEXITY,
 672         collapsible_if::COLLAPSIBLE_IF,
 673         const_static_lifetime::CONST_STATIC_LIFETIME,
 674         copies::IFS_SAME_COND,
 675         copies::IF_SAME_THEN_ELSE,
 676         derive::DERIVE_HASH_XOR_EQ,
 677         double_comparison::DOUBLE_COMPARISONS,
 678         double_parens::DOUBLE_PARENS,
 679         drop_bounds::DROP_BOUNDS,
 680         drop_forget_ref::DROP_COPY,
 681         drop_forget_ref::DROP_REF,
 682         drop_forget_ref::FORGET_COPY,
 683         drop_forget_ref::FORGET_REF,
 684         duration_subsec::DURATION_SUBSEC,
 685         entry::MAP_ENTRY,
 686         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 687         enum_variants::ENUM_VARIANT_NAMES,
 688         enum_variants::MODULE_INCEPTION,
 689         eq_op::EQ_OP,
 690         eq_op::OP_REF,
 691         erasing_op::ERASING_OP,
 692         escape::BOXED_LOCAL,
 693         eta_reduction::REDUNDANT_CLOSURE,
 694         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 695         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 696         excessive_precision::EXCESSIVE_PRECISION,
 697         explicit_write::EXPLICIT_WRITE,
 698         format::USELESS_FORMAT,
 699         formatting::POSSIBLE_MISSING_COMMA,
 700         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 701         formatting::SUSPICIOUS_ELSE_FORMATTING,
 702         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 703         functions::TOO_MANY_ARGUMENTS,
 704         identity_conversion::IDENTITY_CONVERSION,
 705         identity_op::IDENTITY_OP,
 706         indexing_slicing::OUT_OF_BOUNDS_INDEXING,
 707         infallible_destructuring_match::INFALLIBLE_DESTRUCTURING_MATCH,
 708         infinite_iter::INFINITE_ITER,
 709         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 710         int_plus_one::INT_PLUS_ONE,
 711         invalid_ref::INVALID_REF,
 712         large_enum_variant::LARGE_ENUM_VARIANT,
 713         len_zero::LEN_WITHOUT_IS_EMPTY,
 714         len_zero::LEN_ZERO,
 715         let_if_seq::USELESS_LET_IF_SEQ,
 716         lifetimes::EXTRA_UNUSED_LIFETIMES,
 717         lifetimes::NEEDLESS_LIFETIMES,
 718         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 719         literal_representation::MISTYPED_LITERAL_SUFFIXES,
 720         literal_representation::UNREADABLE_LITERAL,
 721         loops::EMPTY_LOOP,
 722         loops::EXPLICIT_COUNTER_LOOP,
 723         loops::FOR_KV_MAP,
 724         loops::FOR_LOOP_OVER_OPTION,
 725         loops::FOR_LOOP_OVER_RESULT,
 726         loops::ITER_NEXT_LOOP,
 727         loops::MANUAL_MEMCPY,
 728         loops::MUT_RANGE_BOUND,
 729         loops::NEEDLESS_COLLECT,
 730         loops::NEEDLESS_RANGE_LOOP,
 731         loops::NEVER_LOOP,
 732         loops::REVERSE_RANGE_LOOP,
 733         loops::UNUSED_COLLECT,
 734         loops::WHILE_IMMUTABLE_CONDITION,
 735         loops::WHILE_LET_LOOP,
 736         loops::WHILE_LET_ON_ITERATOR,
 737         map_clone::MAP_CLONE,
 738         map_unit_fn::OPTION_MAP_UNIT_FN,
 739         map_unit_fn::RESULT_MAP_UNIT_FN,
 740         matches::MATCH_AS_REF,
 741         matches::MATCH_BOOL,
 742         matches::MATCH_OVERLAPPING_ARM,
 743         matches::MATCH_REF_PATS,
 744         matches::MATCH_WILD_ERR_ARM,
 745         matches::SINGLE_MATCH,
 746         mem_discriminant::MEM_DISCRIMINANT_NON_ENUM,
 747         mem_replace::MEM_REPLACE_OPTION_WITH_NONE,
 748         methods::CHARS_LAST_CMP,
 749         methods::CHARS_NEXT_CMP,
 750         methods::CLONE_DOUBLE_REF,
 751         methods::CLONE_ON_COPY,
 752         methods::EXPECT_FUN_CALL,
 753         methods::FILTER_NEXT,
 754         methods::INTO_ITER_ON_ARRAY,
 755         methods::INTO_ITER_ON_REF,
 756         methods::ITER_CLONED_COLLECT,
 757         methods::ITER_NTH,
 758         methods::ITER_SKIP_NEXT,
 759         methods::NEW_RET_NO_SELF,
 760         methods::OK_EXPECT,
 761         methods::OPTION_MAP_OR_NONE,
 762         methods::OR_FUN_CALL,
 763         methods::SEARCH_IS_SOME,
 764         methods::SHOULD_IMPLEMENT_TRAIT,
 765         methods::SINGLE_CHAR_PATTERN,
 766         methods::STRING_EXTEND_CHARS,
 767         methods::TEMPORARY_CSTRING_AS_PTR,
 768         methods::UNNECESSARY_FILTER_MAP,
 769         methods::UNNECESSARY_FOLD,
 770         methods::USELESS_ASREF,
 771         methods::WRONG_SELF_CONVENTION,
 772         minmax::MIN_MAX,
 773         misc::CMP_NAN,
 774         misc::CMP_OWNED,
 775         misc::FLOAT_CMP,
 776         misc::MODULO_ONE,
 777         misc::REDUNDANT_PATTERN,
 778         misc::SHORT_CIRCUIT_STATEMENT,
 779         misc::TOPLEVEL_REF_ARG,
 780         misc::ZERO_PTR,
 781         misc_early::BUILTIN_TYPE_SHADOW,
 782         misc_early::DOUBLE_NEG,
 783         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 784         misc_early::MIXED_CASE_HEX_LITERALS,
 785         misc_early::REDUNDANT_CLOSURE_CALL,
 786         misc_early::UNNEEDED_FIELD_PATTERN,
 787         misc_early::ZERO_PREFIXED_LITERAL,
 788         mut_reference::UNNECESSARY_MUT_PASSED,
 789         mutex_atomic::MUTEX_ATOMIC,
 790         needless_bool::BOOL_COMPARISON,
 791         needless_bool::NEEDLESS_BOOL,
 792         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 793         needless_update::NEEDLESS_UPDATE,
 794         neg_cmp_op_on_partial_ord::NEG_CMP_OP_ON_PARTIAL_ORD,
 795         neg_multiply::NEG_MULTIPLY,
 796         new_without_default::NEW_WITHOUT_DEFAULT,
 797         no_effect::NO_EFFECT,
 798         no_effect::UNNECESSARY_OPERATION,
 799         non_copy_const::BORROW_INTERIOR_MUTABLE_CONST,
 800         non_copy_const::DECLARE_INTERIOR_MUTABLE_CONST,
 801         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 802         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 803         ok_if_let::IF_LET_SOME_RESULT,
 804         open_options::NONSENSICAL_OPEN_OPTIONS,
 805         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 806         panic_unimplemented::PANIC_PARAMS,
 807         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 808         precedence::PRECEDENCE,
 809         ptr::CMP_NULL,
 810         ptr::MUT_FROM_REF,
 811         ptr::PTR_ARG,
 812         ptr_offset_with_cast::PTR_OFFSET_WITH_CAST,
 813         question_mark::QUESTION_MARK,
 814         ranges::ITERATOR_STEP_BY_ZERO,
 815         ranges::RANGE_MINUS_ONE,
 816         ranges::RANGE_PLUS_ONE,
 817         ranges::RANGE_ZIP_WITH_LEN,
 818         redundant_field_names::REDUNDANT_FIELD_NAMES,
 819         redundant_pattern_matching::REDUNDANT_PATTERN_MATCHING,
 820         reference::DEREF_ADDROF,
 821         reference::REF_IN_DEREF,
 822         regex::INVALID_REGEX,
 823         regex::REGEX_MACRO,
 824         regex::TRIVIAL_REGEX,
 825         returns::LET_AND_RETURN,
 826         returns::NEEDLESS_RETURN,
 827         returns::UNUSED_UNIT,
 828         serde_api::SERDE_API_MISUSE,
 829         slow_vector_initialization::SLOW_VECTOR_INITIALIZATION,
 830         strings::STRING_LIT_AS_BYTES,
 831         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 832         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 833         swap::ALMOST_SWAPPED,
 834         swap::MANUAL_SWAP,
 835         temporary_assignment::TEMPORARY_ASSIGNMENT,
 836         transmute::CROSSPOINTER_TRANSMUTE,
 837         transmute::TRANSMUTE_BYTES_TO_STR,
 838         transmute::TRANSMUTE_INT_TO_BOOL,
 839         transmute::TRANSMUTE_INT_TO_CHAR,
 840         transmute::TRANSMUTE_INT_TO_FLOAT,
 841         transmute::TRANSMUTE_PTR_TO_PTR,
 842         transmute::TRANSMUTE_PTR_TO_REF,
 843         transmute::USELESS_TRANSMUTE,
 844         transmute::WRONG_TRANSMUTE,
 845         trivially_copy_pass_by_ref::TRIVIALLY_COPY_PASS_BY_REF,
 846         types::ABSURD_EXTREME_COMPARISONS,
 847         types::BORROWED_BOX,
 848         types::BOX_VEC,
 849         types::CAST_LOSSLESS,
 850         types::CAST_PTR_ALIGNMENT,
 851         types::CAST_REF_TO_MUT,
 852         types::CHAR_LIT_AS_U8,
 853         types::FN_TO_NUMERIC_CAST,
 854         types::FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
 855         types::IMPLICIT_HASHER,
 856         types::LET_UNIT_VALUE,
 857         types::OPTION_OPTION,
 858         types::TYPE_COMPLEXITY,
 859         types::UNIT_ARG,
 860         types::UNIT_CMP,
 861         types::UNNECESSARY_CAST,
 862         types::VEC_BOX,
 863         unicode::ZERO_WIDTH_SPACE,
 864         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 865         unused_io_amount::UNUSED_IO_AMOUNT,
 866         unused_label::UNUSED_LABEL,
 867         vec::USELESS_VEC,
 868         write::PRINTLN_EMPTY_STRING,
 869         write::PRINT_LITERAL,
 870         write::PRINT_WITH_NEWLINE,
 871         write::WRITELN_EMPTY_STRING,
 872         write::WRITE_LITERAL,
 873         write::WRITE_WITH_NEWLINE,
 874         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 875     ]);
 876
 877     reg.register_lint_group("clippy::style", Some("clippy_style"), vec![
 878         assertions_on_constants::ASSERTIONS_ON_CONSTANTS,
 879         assign_ops::ASSIGN_OP_PATTERN,
 880         attrs::UNKNOWN_CLIPPY_LINTS,
 881         bit_mask::VERBOSE_BIT_MASK,
 882         blacklisted_name::BLACKLISTED_NAME,
 883         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 884         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 885         collapsible_if::COLLAPSIBLE_IF,
 886         const_static_lifetime::CONST_STATIC_LIFETIME,
 887         enum_variants::ENUM_VARIANT_NAMES,
 888         enum_variants::MODULE_INCEPTION,
 889         eq_op::OP_REF,
 890         eta_reduction::REDUNDANT_CLOSURE,
 891         excessive_precision::EXCESSIVE_PRECISION,
 892         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 893         formatting::SUSPICIOUS_ELSE_FORMATTING,
 894         infallible_destructuring_match::INFALLIBLE_DESTRUCTURING_MATCH,
 895         len_zero::LEN_WITHOUT_IS_EMPTY,
 896         len_zero::LEN_ZERO,
 897         let_if_seq::USELESS_LET_IF_SEQ,
 898         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 899         literal_representation::UNREADABLE_LITERAL,
 900         loops::EMPTY_LOOP,
 901         loops::FOR_KV_MAP,
 902         loops::NEEDLESS_RANGE_LOOP,
 903         loops::WHILE_LET_ON_ITERATOR,
 904         map_clone::MAP_CLONE,
 905         matches::MATCH_BOOL,
 906         matches::MATCH_OVERLAPPING_ARM,
 907         matches::MATCH_REF_PATS,
 908         matches::MATCH_WILD_ERR_ARM,
 909         matches::SINGLE_MATCH,
 910         mem_replace::MEM_REPLACE_OPTION_WITH_NONE,
 911         methods::CHARS_LAST_CMP,
 912         methods::INTO_ITER_ON_REF,
 913         methods::ITER_CLONED_COLLECT,
 914         methods::ITER_SKIP_NEXT,
 915         methods::NEW_RET_NO_SELF,
 916         methods::OK_EXPECT,
 917         methods::OPTION_MAP_OR_NONE,
 918         methods::SHOULD_IMPLEMENT_TRAIT,
 919         methods::STRING_EXTEND_CHARS,
 920         methods::UNNECESSARY_FOLD,
 921         methods::WRONG_SELF_CONVENTION,
 922         misc::REDUNDANT_PATTERN,
 923         misc::TOPLEVEL_REF_ARG,
 924         misc::ZERO_PTR,
 925         misc_early::BUILTIN_TYPE_SHADOW,
 926         misc_early::DOUBLE_NEG,
 927         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 928         misc_early::MIXED_CASE_HEX_LITERALS,
 929         misc_early::UNNEEDED_FIELD_PATTERN,
 930         mut_reference::UNNECESSARY_MUT_PASSED,
 931         neg_multiply::NEG_MULTIPLY,
 932         new_without_default::NEW_WITHOUT_DEFAULT,
 933         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 934         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 935         ok_if_let::IF_LET_SOME_RESULT,
 936         panic_unimplemented::PANIC_PARAMS,
 937         ptr::CMP_NULL,
 938         ptr::PTR_ARG,
 939         question_mark::QUESTION_MARK,
 940         redundant_field_names::REDUNDANT_FIELD_NAMES,
 941         redundant_pattern_matching::REDUNDANT_PATTERN_MATCHING,
 942         regex::REGEX_MACRO,
 943         regex::TRIVIAL_REGEX,
 944         returns::LET_AND_RETURN,
 945         returns::NEEDLESS_RETURN,
 946         returns::UNUSED_UNIT,
 947         strings::STRING_LIT_AS_BYTES,
 948         types::FN_TO_NUMERIC_CAST,
 949         types::FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
 950         types::IMPLICIT_HASHER,
 951         types::LET_UNIT_VALUE,
 952         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 953         write::PRINTLN_EMPTY_STRING,
 954         write::PRINT_LITERAL,
 955         write::PRINT_WITH_NEWLINE,
 956         write::WRITELN_EMPTY_STRING,
 957         write::WRITE_LITERAL,
 958         write::WRITE_WITH_NEWLINE,
 959     ]);
 960
 961     reg.register_lint_group("clippy::complexity", Some("clippy_complexity"), vec![
 962         assign_ops::MISREFACTORED_ASSIGN_OP,
 963         attrs::DEPRECATED_CFG_ATTR,
 964         booleans::NONMINIMAL_BOOL,
 965         cognitive_complexity::COGNITIVE_COMPLEXITY,
 966         double_comparison::DOUBLE_COMPARISONS,
 967         double_parens::DOUBLE_PARENS,
 968         duration_subsec::DURATION_SUBSEC,
 969         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 970         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 971         explicit_write::EXPLICIT_WRITE,
 972         format::USELESS_FORMAT,
 973         functions::TOO_MANY_ARGUMENTS,
 974         identity_conversion::IDENTITY_CONVERSION,
 975         identity_op::IDENTITY_OP,
 976         int_plus_one::INT_PLUS_ONE,
 977         lifetimes::EXTRA_UNUSED_LIFETIMES,
 978         lifetimes::NEEDLESS_LIFETIMES,
 979         loops::EXPLICIT_COUNTER_LOOP,
 980         loops::MUT_RANGE_BOUND,
 981         loops::WHILE_LET_LOOP,
 982         map_unit_fn::OPTION_MAP_UNIT_FN,
 983         map_unit_fn::RESULT_MAP_UNIT_FN,
 984         matches::MATCH_AS_REF,
 985         methods::CHARS_NEXT_CMP,
 986         methods::CLONE_ON_COPY,
 987         methods::FILTER_NEXT,
 988         methods::SEARCH_IS_SOME,
 989         methods::UNNECESSARY_FILTER_MAP,
 990         methods::USELESS_ASREF,
 991         misc::SHORT_CIRCUIT_STATEMENT,
 992         misc_early::REDUNDANT_CLOSURE_CALL,
 993         misc_early::ZERO_PREFIXED_LITERAL,
 994         needless_bool::BOOL_COMPARISON,
 995         needless_bool::NEEDLESS_BOOL,
 996         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 997         needless_update::NEEDLESS_UPDATE,
 998         neg_cmp_op_on_partial_ord::NEG_CMP_OP_ON_PARTIAL_ORD,
 999         no_effect::NO_EFFECT,
1000         no_effect::UNNECESSARY_OPERATION,
1001         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
1002         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
1003         precedence::PRECEDENCE,
1004         ptr_offset_with_cast::PTR_OFFSET_WITH_CAST,
1005         ranges::RANGE_MINUS_ONE,
1006         ranges::RANGE_PLUS_ONE,
1007         ranges::RANGE_ZIP_WITH_LEN,
1008         reference::DEREF_ADDROF,
1009         reference::REF_IN_DEREF,
1010         swap::MANUAL_SWAP,
1011         temporary_assignment::TEMPORARY_ASSIGNMENT,
1012         transmute::CROSSPOINTER_TRANSMUTE,
1013         transmute::TRANSMUTE_BYTES_TO_STR,
1014         transmute::TRANSMUTE_INT_TO_BOOL,
1015         transmute::TRANSMUTE_INT_TO_CHAR,
1016         transmute::TRANSMUTE_INT_TO_FLOAT,
1017         transmute::TRANSMUTE_PTR_TO_PTR,
1018         transmute::TRANSMUTE_PTR_TO_REF,
1019         transmute::USELESS_TRANSMUTE,
1020         types::BORROWED_BOX,
1021         types::CAST_LOSSLESS,
1022         types::CHAR_LIT_AS_U8,
1023         types::OPTION_OPTION,
1024         types::TYPE_COMPLEXITY,
1025         types::UNIT_ARG,
1026         types::UNNECESSARY_CAST,
1027         types::VEC_BOX,
1028         unused_label::UNUSED_LABEL,
1029         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
1030     ]);
1031
1032     reg.register_lint_group("clippy::correctness", Some("clippy_correctness"), vec![
1033         approx_const::APPROX_CONSTANT,
1034         attrs::DEPRECATED_SEMVER,
1035         attrs::USELESS_ATTRIBUTE,
1036         bit_mask::BAD_BIT_MASK,
1037         bit_mask::INEFFECTIVE_BIT_MASK,
1038         booleans::LOGIC_BUG,
1039         copies::IFS_SAME_COND,
1040         copies::IF_SAME_THEN_ELSE,
1041         derive::DERIVE_HASH_XOR_EQ,
1042         drop_bounds::DROP_BOUNDS,
1043         drop_forget_ref::DROP_COPY,
1044         drop_forget_ref::DROP_REF,
1045         drop_forget_ref::FORGET_COPY,
1046         drop_forget_ref::FORGET_REF,
1047         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
1048         eq_op::EQ_OP,
1049         erasing_op::ERASING_OP,
1050         formatting::POSSIBLE_MISSING_COMMA,
1051         functions::NOT_UNSAFE_PTR_ARG_DEREF,
1052         indexing_slicing::OUT_OF_BOUNDS_INDEXING,
1053         infinite_iter::INFINITE_ITER,
1054         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
1055         invalid_ref::INVALID_REF,
1056         literal_representation::MISTYPED_LITERAL_SUFFIXES,
1057         loops::FOR_LOOP_OVER_OPTION,
1058         loops::FOR_LOOP_OVER_RESULT,
1059         loops::ITER_NEXT_LOOP,
1060         loops::NEVER_LOOP,
1061         loops::REVERSE_RANGE_LOOP,
1062         loops::WHILE_IMMUTABLE_CONDITION,
1063         mem_discriminant::MEM_DISCRIMINANT_NON_ENUM,
1064         methods::CLONE_DOUBLE_REF,
1065         methods::INTO_ITER_ON_ARRAY,
1066         methods::TEMPORARY_CSTRING_AS_PTR,
1067         minmax::MIN_MAX,
1068         misc::CMP_NAN,
1069         misc::FLOAT_CMP,
1070         misc::MODULO_ONE,
1071         non_copy_const::BORROW_INTERIOR_MUTABLE_CONST,
1072         non_copy_const::DECLARE_INTERIOR_MUTABLE_CONST,
1073         open_options::NONSENSICAL_OPEN_OPTIONS,
1074         ptr::MUT_FROM_REF,
1075         ranges::ITERATOR_STEP_BY_ZERO,
1076         regex::INVALID_REGEX,
1077         serde_api::SERDE_API_MISUSE,
1078         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
1079         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
1080         swap::ALMOST_SWAPPED,
1081         transmute::WRONG_TRANSMUTE,
1082         types::ABSURD_EXTREME_COMPARISONS,
1083         types::CAST_PTR_ALIGNMENT,
1084         types::CAST_REF_TO_MUT,
1085         types::UNIT_CMP,
1086         unicode::ZERO_WIDTH_SPACE,
1087         unused_io_amount::UNUSED_IO_AMOUNT,
1088     ]);
1089
1090     reg.register_lint_group("clippy::perf", Some("clippy_perf"), vec![
1091         bytecount::NAIVE_BYTECOUNT,
1092         entry::MAP_ENTRY,
1093         escape::BOXED_LOCAL,
1094         large_enum_variant::LARGE_ENUM_VARIANT,
1095         loops::MANUAL_MEMCPY,
1096         loops::NEEDLESS_COLLECT,
1097         loops::UNUSED_COLLECT,
1098         methods::EXPECT_FUN_CALL,
1099         methods::ITER_NTH,
1100         methods::OR_FUN_CALL,
1101         methods::SINGLE_CHAR_PATTERN,
1102         misc::CMP_OWNED,
1103         mutex_atomic::MUTEX_ATOMIC,
1104         slow_vector_initialization::SLOW_VECTOR_INITIALIZATION,
1105         trivially_copy_pass_by_ref::TRIVIALLY_COPY_PASS_BY_REF,
1106         types::BOX_VEC,
1107         vec::USELESS_VEC,
1108     ]);
1109
1110     reg.register_lint_group("clippy::cargo", Some("clippy_cargo"), vec![
1111         cargo_common_metadata::CARGO_COMMON_METADATA,
1112         multiple_crate_versions::MULTIPLE_CRATE_VERSIONS,
1113         wildcard_dependencies::WILDCARD_DEPENDENCIES,
1114     ]);
1115
1116     reg.register_lint_group("clippy::nursery", Some("clippy_nursery"), vec![
1117         attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
1118         fallible_impl_from::FALLIBLE_IMPL_FROM,
1119         missing_const_for_fn::MISSING_CONST_FOR_FN,
1120         mutex_atomic::MUTEX_INTEGER,
1121         needless_borrow::NEEDLESS_BORROW,
1122         redundant_clone::REDUNDANT_CLONE,
1123         unwrap::PANICKING_UNWRAP,
1124         unwrap::UNNECESSARY_UNWRAP,
1125     ]);
1126 }
1127
1128 /// Register renamed lints.
1129 ///
1130 /// Used in `./src/driver.rs`.
1131 pub fn register_renamed(ls: &mut rustc::lint::LintStore) {
1132     ls.register_renamed("clippy::stutter", "clippy::module_name_repetitions");
1133     ls.register_renamed("clippy::new_without_default_derive", "clippy::new_without_default");
1134     ls.register_renamed("clippy::cyclomatic_complexity", "clippy::cognitive_complexity");
1135 }
1136
1137 // only exists to let the dogfood integration test works.
1138 // Don't run clippy as an executable directly
1139 #[allow(dead_code)]
1140 fn main() {
1141     panic!("Please use the cargo-clippy executable");
1142 }