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