clippy_lints/src/lib.rs

   1 // error-pattern:cargo-clippy
   2
   3 #![feature(box_syntax)]
   4 #![feature(box_patterns)]
   5 #![feature(never_type)]
   6 #![feature(rustc_private)]
   7 #![feature(slice_patterns)]
   8 #![feature(stmt_expr_attributes)]
   9 #![allow(clippy::missing_docs_in_private_items)]
  10 #![recursion_limit = "512"]
  11 #![warn(rust_2018_idioms, trivial_casts, trivial_numeric_casts)]
  12 #![deny(rustc::internal)]
  13 #![cfg_attr(feature = "deny-warnings", deny(warnings))]
  14 #![feature(crate_visibility_modifier)]
  15 #![feature(concat_idents)]
  16
  17 // FIXME: switch to something more ergonomic here, once available.
  18 // (Currently there is no way to opt into sysroot crates without `extern crate`.)
  19 #[allow(unused_extern_crates)]
  20 extern crate fmt_macros;
  21 #[allow(unused_extern_crates)]
  22 extern crate rustc;
  23 #[allow(unused_extern_crates)]
  24 extern crate rustc_data_structures;
  25 #[allow(unused_extern_crates)]
  26 extern crate rustc_errors;
  27 #[allow(unused_extern_crates)]
  28 extern crate rustc_mir;
  29 #[allow(unused_extern_crates)]
  30 extern crate rustc_plugin;
  31 #[allow(unused_extern_crates)]
  32 extern crate rustc_target;
  33 #[allow(unused_extern_crates)]
  34 extern crate rustc_typeck;
  35 #[allow(unused_extern_crates)]
  36 extern crate syntax;
  37 #[allow(unused_extern_crates)]
  38 extern crate syntax_pos;
  39
  40 use toml;
  41
  42 /// Macro used to declare a Clippy lint.
  43 ///
  44 /// Every lint declaration consists of 4 parts:
  45 ///
  46 /// 1. The documentation, which is used for the website
  47 /// 2. The `LINT_NAME`. See [lint naming][lint_naming] on lint naming conventions.
  48 /// 3. The `lint_level`, which is a mapping from *one* of our lint groups to `Allow`, `Warn` or
  49 ///    `Deny`. The lint level here has nothing to do with what lint groups the lint is a part of.
  50 /// 4. The `description` that contains a short explanation on what's wrong with code where the
  51 ///    lint is triggered.
  52 ///
  53 /// Currently the categories `style`, `correctness`, `complexity` and `perf` are enabled by default.
  54 /// As said in the README.md of this repository, if the lint level mapping changes, please update
  55 /// README.md.
  56 ///
  57 /// # Example
  58 ///
  59 /// ```
  60 /// # #![feature(rustc_private)]
  61 /// # #[allow(unused_extern_crates)]
  62 /// # extern crate rustc;
  63 /// # #[macro_use]
  64 /// # use clippy_lints::declare_clippy_lint;
  65 /// use rustc::declare_tool_lint;
  66 ///
  67 /// declare_clippy_lint! {
  68 ///     /// **What it does:** Checks for ... (describe what the lint matches).
  69 ///     ///
  70 ///     /// **Why is this bad?** Supply the reason for linting the code.
  71 ///     ///
  72 ///     /// **Known problems:** None. (Or describe where it could go wrong.)
  73 ///     ///
  74 ///     /// **Example:**
  75 ///     ///
  76 ///     /// ```rust
  77 ///     /// // Bad
  78 ///     /// Insert a short example of code that triggers the lint
  79 ///     ///
  80 ///     /// // Good
  81 ///     /// Insert a short example of improved code that doesn't trigger the lint
  82 ///     /// ```
  83 ///     pub LINT_NAME,
  84 ///     pedantic,
  85 ///     "description"
  86 /// }
  87 /// ```
  88 /// [lint_naming]: https://rust-lang.github.io/rfcs/0344-conventions-galore.html#lints
  89 #[macro_export]
  90 macro_rules! declare_clippy_lint {
  91     { $(#[$attr:meta])* pub $name:tt, style, $description:tt } => {
  92         declare_tool_lint! {
  93             $(#[$attr])* pub clippy::$name, Warn, $description, report_in_external_macro: true
  94         }
  95     };
  96     { $(#[$attr:meta])* pub $name:tt, correctness, $description:tt } => {
  97         declare_tool_lint! {
  98             $(#[$attr])* pub clippy::$name, Deny, $description, report_in_external_macro: true
  99         }
 100     };
 101     { $(#[$attr:meta])* pub $name:tt, complexity, $description:tt } => {
 102         declare_tool_lint! {
 103             pub clippy::$name, Warn, $description, report_in_external_macro: true
 104         }
 105     };
 106     { $(#[$attr:meta])* pub $name:tt, perf, $description:tt } => {
 107         declare_tool_lint! {
 108             pub clippy::$name, Warn, $description, report_in_external_macro: true
 109         }
 110     };
 111     { $(#[$attr:meta])* pub $name:tt, pedantic, $description:tt } => {
 112         declare_tool_lint! {
 113             pub clippy::$name, Allow, $description, report_in_external_macro: true
 114         }
 115     };
 116     { $(#[$attr:meta])* pub $name:tt, restriction, $description:tt } => {
 117         declare_tool_lint! {
 118             pub clippy::$name, Allow, $description, report_in_external_macro: true
 119         }
 120     };
 121     { $(#[$attr:meta])* pub $name:tt, cargo, $description:tt } => {
 122         declare_tool_lint! {
 123             pub clippy::$name, Allow, $description, report_in_external_macro: true
 124         }
 125     };
 126     { $(#[$attr:meta])* pub $name:tt, nursery, $description:tt } => {
 127         declare_tool_lint! {
 128             pub clippy::$name, Allow, $description, report_in_external_macro: true
 129         }
 130     };
 131     { $(#[$attr:meta])* pub $name:tt, internal, $description:tt } => {
 132         declare_tool_lint! {
 133             pub clippy::$name, Allow, $description, report_in_external_macro: true
 134         }
 135     };
 136     { $(#[$attr:meta])* pub $name:tt, internal_warn, $description:tt } => {
 137         declare_tool_lint! {
 138             pub clippy::$name, Warn, $description, report_in_external_macro: true
 139         }
 140     };
 141 }
 142
 143 mod consts;
 144 #[macro_use]
 145 mod utils;
 146
 147 // begin lints modules, do not remove this comment, it’s used in `update_lints`
 148 pub mod approx_const;
 149 pub mod arithmetic;
 150 pub mod assertions_on_constants;
 151 pub mod assign_ops;
 152 pub mod attrs;
 153 pub mod bit_mask;
 154 pub mod blacklisted_name;
 155 pub mod block_in_if_condition;
 156 pub mod booleans;
 157 pub mod bytecount;
 158 pub mod cargo_common_metadata;
 159 pub mod checked_conversions;
 160 pub mod cognitive_complexity;
 161 pub mod collapsible_if;
 162 pub mod copies;
 163 pub mod copy_iterator;
 164 pub mod dbg_macro;
 165 pub mod default_trait_access;
 166 pub mod derive;
 167 pub mod doc;
 168 pub mod double_comparison;
 169 pub mod double_parens;
 170 pub mod drop_bounds;
 171 pub mod drop_forget_ref;
 172 pub mod duration_subsec;
 173 pub mod else_if_without_else;
 174 pub mod empty_enum;
 175 pub mod entry;
 176 pub mod enum_clike;
 177 pub mod enum_glob_use;
 178 pub mod enum_variants;
 179 pub mod eq_op;
 180 pub mod erasing_op;
 181 pub mod escape;
 182 pub mod eta_reduction;
 183 pub mod eval_order_dependence;
 184 pub mod excessive_precision;
 185 pub mod explicit_write;
 186 pub mod fallible_impl_from;
 187 pub mod format;
 188 pub mod formatting;
 189 pub mod functions;
 190 pub mod get_last_with_len;
 191 pub mod identity_conversion;
 192 pub mod identity_op;
 193 pub mod if_not_else;
 194 pub mod implicit_return;
 195 pub mod indexing_slicing;
 196 pub mod infallible_destructuring_match;
 197 pub mod infinite_iter;
 198 pub mod inherent_impl;
 199 pub mod inherent_to_string;
 200 pub mod inline_fn_without_body;
 201 pub mod int_plus_one;
 202 pub mod integer_division;
 203 pub mod invalid_ref;
 204 pub mod items_after_statements;
 205 pub mod large_enum_variant;
 206 pub mod len_zero;
 207 pub mod let_if_seq;
 208 pub mod lifetimes;
 209 pub mod literal_representation;
 210 pub mod loops;
 211 pub mod map_clone;
 212 pub mod map_unit_fn;
 213 pub mod matches;
 214 pub mod mem_discriminant;
 215 pub mod mem_forget;
 216 pub mod mem_replace;
 217 pub mod methods;
 218 pub mod minmax;
 219 pub mod misc;
 220 pub mod misc_early;
 221 pub mod missing_const_for_fn;
 222 pub mod missing_doc;
 223 pub mod missing_inline;
 224 pub mod multiple_crate_versions;
 225 pub mod mut_mut;
 226 pub mod mut_reference;
 227 pub mod mutex_atomic;
 228 pub mod needless_bool;
 229 pub mod needless_borrow;
 230 pub mod needless_borrowed_ref;
 231 pub mod needless_continue;
 232 pub mod needless_pass_by_value;
 233 pub mod needless_update;
 234 pub mod neg_cmp_op_on_partial_ord;
 235 pub mod neg_multiply;
 236 pub mod new_without_default;
 237 pub mod no_effect;
 238 pub mod non_copy_const;
 239 pub mod non_expressive_names;
 240 pub mod ok_if_let;
 241 pub mod open_options;
 242 pub mod overflow_check_conditional;
 243 pub mod panic_unimplemented;
 244 pub mod partialeq_ne_impl;
 245 pub mod path_buf_push_overwrite;
 246 pub mod precedence;
 247 pub mod ptr;
 248 pub mod ptr_offset_with_cast;
 249 pub mod question_mark;
 250 pub mod ranges;
 251 pub mod redundant_clone;
 252 pub mod redundant_field_names;
 253 pub mod redundant_pattern_matching;
 254 pub mod redundant_static_lifetimes;
 255 pub mod reference;
 256 pub mod regex;
 257 pub mod replace_consts;
 258 pub mod returns;
 259 pub mod serde_api;
 260 pub mod shadow;
 261 pub mod slow_vector_initialization;
 262 pub mod strings;
 263 pub mod suspicious_trait_impl;
 264 pub mod swap;
 265 pub mod temporary_assignment;
 266 pub mod transmute;
 267 pub mod transmuting_null;
 268 pub mod trivially_copy_pass_by_ref;
 269 pub mod try_err;
 270 pub mod types;
 271 pub mod unicode;
 272 pub mod unsafe_removed_from_name;
 273 pub mod unused_io_amount;
 274 pub mod unused_label;
 275 pub mod unwrap;
 276 pub mod use_self;
 277 pub mod vec;
 278 pub mod wildcard_dependencies;
 279 pub mod write;
 280 pub mod zero_div_zero;
 281 // end lints modules, do not remove this comment, it’s used in `update_lints`
 282
 283 pub use crate::utils::conf::Conf;
 284
 285 mod reexport {
 286     crate use syntax::ast::Name;
 287 }
 288
 289 /// Register all pre expansion lints
 290 ///
 291 /// Pre-expansion lints run before any macro expansion has happened.
 292 ///
 293 /// Note that due to the architecture of the compiler, currently `cfg_attr` attributes on crate
 294 /// level (i.e `#![cfg_attr(...)]`) will still be expanded even when using a pre-expansion pass.
 295 ///
 296 /// Used in `./src/driver.rs`.
 297 pub fn register_pre_expansion_lints(
 298     session: &rustc::session::Session,
 299     store: &mut rustc::lint::LintStore,
 300     conf: &Conf,
 301 ) {
 302     store.register_pre_expansion_pass(Some(session), true, false, box write::Write);
 303     store.register_pre_expansion_pass(
 304         Some(session),
 305         true,
 306         false,
 307         box redundant_field_names::RedundantFieldNames,
 308     );
 309     store.register_pre_expansion_pass(
 310         Some(session),
 311         true,
 312         false,
 313         box non_expressive_names::NonExpressiveNames {
 314             single_char_binding_names_threshold: conf.single_char_binding_names_threshold,
 315         },
 316     );
 317     store.register_pre_expansion_pass(Some(session), true, false, box attrs::DeprecatedCfgAttribute);
 318     store.register_pre_expansion_pass(Some(session), true, false, box dbg_macro::DbgMacro);
 319 }
 320
 321 #[doc(hidden)]
 322 pub fn read_conf(reg: &rustc_plugin::Registry<'_>) -> Conf {
 323     match utils::conf::file_from_args(reg.args()) {
 324         Ok(file_name) => {
 325             // if the user specified a file, it must exist, otherwise default to `clippy.toml` but
 326             // do not require the file to exist
 327             let file_name = if let Some(file_name) = file_name {
 328                 Some(file_name)
 329             } else {
 330                 match utils::conf::lookup_conf_file() {
 331                     Ok(path) => path,
 332                     Err(error) => {
 333                         reg.sess
 334                             .struct_err(&format!("error finding Clippy's configuration file: {}", error))
 335                             .emit();
 336                         None
 337                     },
 338                 }
 339             };
 340
 341             let file_name = file_name.map(|file_name| {
 342                 if file_name.is_relative() {
 343                     reg.sess
 344                         .local_crate_source_file
 345                         .as_ref()
 346                         .and_then(|file| std::path::Path::new(&file).parent().map(std::path::Path::to_path_buf))
 347                         .unwrap_or_default()
 348                         .join(file_name)
 349                 } else {
 350                     file_name
 351                 }
 352             });
 353
 354             let (conf, errors) = utils::conf::read(file_name.as_ref().map(std::convert::AsRef::as_ref));
 355
 356             // all conf errors are non-fatal, we just use the default conf in case of error
 357             for error in errors {
 358                 reg.sess
 359                     .struct_err(&format!(
 360                         "error reading Clippy's configuration file `{}`: {}",
 361                         file_name.as_ref().and_then(|p| p.to_str()).unwrap_or(""),
 362                         error
 363                     ))
 364                     .emit();
 365             }
 366
 367             conf
 368         },
 369         Err((err, span)) => {
 370             reg.sess
 371                 .struct_span_err(span, err)
 372                 .span_note(span, "Clippy will use default configuration")
 373                 .emit();
 374             toml::from_str("").expect("we never error on empty config files")
 375         },
 376     }
 377 }
 378
 379 /// Register all lints and lint groups with the rustc plugin registry
 380 ///
 381 /// Used in `./src/driver.rs`.
 382 #[allow(clippy::too_many_lines)]
 383 #[rustfmt::skip]
 384 pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
 385     let mut store = reg.sess.lint_store.borrow_mut();
 386     // begin deprecated lints, do not remove this comment, it’s used in `update_lints`
 387     store.register_removed(
 388         "should_assert_eq",
 389         "`assert!()` will be more flexible with RFC 2011",
 390     );
 391     store.register_removed(
 392         "extend_from_slice",
 393         "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice",
 394     );
 395     store.register_removed(
 396         "range_step_by_zero",
 397         "`iterator.step_by(0)` panics nowadays",
 398     );
 399     store.register_removed(
 400         "unstable_as_slice",
 401         "`Vec::as_slice` has been stabilized in 1.7",
 402     );
 403     store.register_removed(
 404         "unstable_as_mut_slice",
 405         "`Vec::as_mut_slice` has been stabilized in 1.7",
 406     );
 407     store.register_removed(
 408         "str_to_string",
 409         "using `str::to_string` is common even today and specialization will likely happen soon",
 410     );
 411     store.register_removed(
 412         "string_to_string",
 413         "using `string::to_string` is common even today and specialization will likely happen soon",
 414     );
 415     store.register_removed(
 416         "misaligned_transmute",
 417         "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",
 418     );
 419     store.register_removed(
 420         "assign_ops",
 421         "using compound assignment operators (e.g., `+=`) is harmless",
 422     );
 423     store.register_removed(
 424         "if_let_redundant_pattern_matching",
 425         "this lint has been changed to redundant_pattern_matching",
 426     );
 427     store.register_removed(
 428         "unsafe_vector_initialization",
 429         "the replacement suggested by this lint had substantially different behavior",
 430     );
 431     // end deprecated lints, do not remove this comment, it’s used in `update_lints`
 432
 433     reg.register_late_lint_pass(box serde_api::SerdeAPI);
 434     reg.register_early_lint_pass(box utils::internal_lints::ClippyLintsInternal);
 435     reg.register_late_lint_pass(box utils::internal_lints::CompilerLintFunctions::new());
 436     reg.register_late_lint_pass(box utils::internal_lints::LintWithoutLintPass::default());
 437     reg.register_late_lint_pass(box utils::internal_lints::OuterExpnInfoPass);
 438     reg.register_late_lint_pass(box utils::inspector::DeepCodeInspector);
 439     reg.register_late_lint_pass(box utils::author::Author);
 440     reg.register_late_lint_pass(box types::Types);
 441     reg.register_late_lint_pass(box booleans::NonminimalBool);
 442     reg.register_late_lint_pass(box eq_op::EqOp);
 443     reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold));
 444     reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse);
 445     reg.register_late_lint_pass(box enum_clike::UnportableVariant);
 446     reg.register_late_lint_pass(box excessive_precision::ExcessivePrecision);
 447     reg.register_late_lint_pass(box bit_mask::BitMask::new(conf.verbose_bit_mask_threshold));
 448     reg.register_late_lint_pass(box ptr::Ptr);
 449     reg.register_late_lint_pass(box needless_bool::NeedlessBool);
 450     reg.register_late_lint_pass(box needless_bool::BoolComparison);
 451     reg.register_late_lint_pass(box approx_const::ApproxConstant);
 452     reg.register_late_lint_pass(box misc::MiscLints);
 453     reg.register_early_lint_pass(box precedence::Precedence);
 454     reg.register_early_lint_pass(box needless_continue::NeedlessContinue);
 455     reg.register_late_lint_pass(box eta_reduction::EtaReduction);
 456     reg.register_late_lint_pass(box identity_op::IdentityOp);
 457     reg.register_late_lint_pass(box erasing_op::ErasingOp);
 458     reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatements);
 459     reg.register_late_lint_pass(box mut_mut::MutMut);
 460     reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed);
 461     reg.register_late_lint_pass(box len_zero::LenZero);
 462     reg.register_late_lint_pass(box attrs::Attributes);
 463     reg.register_early_lint_pass(box collapsible_if::CollapsibleIf);
 464     reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition);
 465     reg.register_late_lint_pass(box unicode::Unicode);
 466     reg.register_late_lint_pass(box strings::StringAdd);
 467     reg.register_early_lint_pass(box returns::Return);
 468     reg.register_late_lint_pass(box implicit_return::ImplicitReturn);
 469     reg.register_late_lint_pass(box methods::Methods);
 470     reg.register_late_lint_pass(box map_clone::MapClone);
 471     reg.register_late_lint_pass(box shadow::Shadow);
 472     reg.register_late_lint_pass(box types::LetUnitValue);
 473     reg.register_late_lint_pass(box types::UnitCmp);
 474     reg.register_late_lint_pass(box loops::Loops);
 475     reg.register_late_lint_pass(box lifetimes::Lifetimes);
 476     reg.register_late_lint_pass(box entry::HashMapPass);
 477     reg.register_late_lint_pass(box ranges::Ranges);
 478     reg.register_late_lint_pass(box types::Casts);
 479     reg.register_late_lint_pass(box types::TypeComplexity::new(conf.type_complexity_threshold));
 480     reg.register_late_lint_pass(box matches::Matches);
 481     reg.register_late_lint_pass(box minmax::MinMaxPass);
 482     reg.register_late_lint_pass(box open_options::OpenOptions);
 483     reg.register_late_lint_pass(box zero_div_zero::ZeroDiv);
 484     reg.register_late_lint_pass(box mutex_atomic::Mutex);
 485     reg.register_late_lint_pass(box needless_update::NeedlessUpdate);
 486     reg.register_late_lint_pass(box needless_borrow::NeedlessBorrow::default());
 487     reg.register_late_lint_pass(box needless_borrowed_ref::NeedlessBorrowedRef);
 488     reg.register_late_lint_pass(box no_effect::NoEffect);
 489     reg.register_late_lint_pass(box temporary_assignment::TemporaryAssignment);
 490     reg.register_late_lint_pass(box transmute::Transmute);
 491     reg.register_late_lint_pass(
 492         box cognitive_complexity::CognitiveComplexity::new(conf.cognitive_complexity_threshold)
 493     );
 494     reg.register_late_lint_pass(box escape::BoxedLocal{too_large_for_stack: conf.too_large_for_stack});
 495     reg.register_early_lint_pass(box misc_early::MiscEarlyLints);
 496     reg.register_late_lint_pass(box panic_unimplemented::PanicUnimplemented);
 497     reg.register_late_lint_pass(box strings::StringLitAsBytes);
 498     reg.register_late_lint_pass(box derive::Derive);
 499     reg.register_late_lint_pass(box types::CharLitAsU8);
 500     reg.register_late_lint_pass(box vec::UselessVec);
 501     reg.register_late_lint_pass(box drop_bounds::DropBounds);
 502     reg.register_late_lint_pass(box get_last_with_len::GetLastWithLen);
 503     reg.register_late_lint_pass(box drop_forget_ref::DropForgetRef);
 504     reg.register_late_lint_pass(box empty_enum::EmptyEnum);
 505     reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);
 506     reg.register_late_lint_pass(box types::InvalidUpcastComparisons);
 507     reg.register_late_lint_pass(box regex::Regex::default());
 508     reg.register_late_lint_pass(box copies::CopyAndPaste);
 509     reg.register_late_lint_pass(box copy_iterator::CopyIterator);
 510     reg.register_late_lint_pass(box format::UselessFormat);
 511     reg.register_early_lint_pass(box formatting::Formatting);
 512     reg.register_late_lint_pass(box swap::Swap);
 513     reg.register_early_lint_pass(box if_not_else::IfNotElse);
 514     reg.register_early_lint_pass(box else_if_without_else::ElseIfWithoutElse);
 515     reg.register_early_lint_pass(box int_plus_one::IntPlusOne);
 516     reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional);
 517     reg.register_late_lint_pass(box unused_label::UnusedLabel);
 518     reg.register_late_lint_pass(box new_without_default::NewWithoutDefault::default());
 519     reg.register_late_lint_pass(box blacklisted_name::BlacklistedName::new(
 520             conf.blacklisted_names.iter().cloned().collect()
 521     ));
 522     reg.register_late_lint_pass(box functions::Functions::new(conf.too_many_arguments_threshold, conf.too_many_lines_threshold));
 523     reg.register_early_lint_pass(box doc::DocMarkdown::new(conf.doc_valid_idents.iter().cloned().collect()));
 524     reg.register_late_lint_pass(box neg_multiply::NegMultiply);
 525     reg.register_early_lint_pass(box unsafe_removed_from_name::UnsafeNameRemoval);
 526     reg.register_late_lint_pass(box mem_discriminant::MemDiscriminant);
 527     reg.register_late_lint_pass(box mem_forget::MemForget);
 528     reg.register_late_lint_pass(box mem_replace::MemReplace);
 529     reg.register_late_lint_pass(box arithmetic::Arithmetic::default());
 530     reg.register_late_lint_pass(box assign_ops::AssignOps);
 531     reg.register_late_lint_pass(box let_if_seq::LetIfSeq);
 532     reg.register_late_lint_pass(box eval_order_dependence::EvalOrderDependence);
 533     reg.register_late_lint_pass(box missing_doc::MissingDoc::new());
 534     reg.register_late_lint_pass(box missing_inline::MissingInline);
 535     reg.register_late_lint_pass(box ok_if_let::OkIfLet);
 536     reg.register_late_lint_pass(box redundant_pattern_matching::RedundantPatternMatching);
 537     reg.register_late_lint_pass(box partialeq_ne_impl::PartialEqNeImpl);
 538     reg.register_early_lint_pass(box reference::DerefAddrOf);
 539     reg.register_early_lint_pass(box reference::RefInDeref);
 540     reg.register_early_lint_pass(box double_parens::DoubleParens);
 541     reg.register_late_lint_pass(box unused_io_amount::UnusedIoAmount);
 542     reg.register_late_lint_pass(box large_enum_variant::LargeEnumVariant::new(conf.enum_variant_size_threshold));
 543     reg.register_late_lint_pass(box explicit_write::ExplicitWrite);
 544     reg.register_late_lint_pass(box needless_pass_by_value::NeedlessPassByValue);
 545     reg.register_late_lint_pass(box trivially_copy_pass_by_ref::TriviallyCopyPassByRef::new(
 546             conf.trivial_copy_size_limit,
 547             &reg.sess.target,
 548     ));
 549     reg.register_early_lint_pass(box literal_representation::LiteralDigitGrouping);
 550     reg.register_early_lint_pass(box literal_representation::DecimalLiteralRepresentation::new(
 551             conf.literal_representation_threshold
 552     ));
 553     reg.register_late_lint_pass(box try_err::TryErr);
 554     reg.register_late_lint_pass(box use_self::UseSelf);
 555     reg.register_late_lint_pass(box bytecount::ByteCount);
 556     reg.register_late_lint_pass(box infinite_iter::InfiniteIter);
 557     reg.register_late_lint_pass(box inline_fn_without_body::InlineFnWithoutBody);
 558     reg.register_late_lint_pass(box invalid_ref::InvalidRef);
 559     reg.register_late_lint_pass(box identity_conversion::IdentityConversion::default());
 560     reg.register_late_lint_pass(box types::ImplicitHasher);
 561     reg.register_early_lint_pass(box redundant_static_lifetimes::RedundantStaticLifetimes);
 562     reg.register_late_lint_pass(box fallible_impl_from::FallibleImplFrom);
 563     reg.register_late_lint_pass(box replace_consts::ReplaceConsts);
 564     reg.register_late_lint_pass(box types::UnitArg);
 565     reg.register_late_lint_pass(box double_comparison::DoubleComparisons);
 566     reg.register_late_lint_pass(box question_mark::QuestionMark);
 567     reg.register_late_lint_pass(box suspicious_trait_impl::SuspiciousImpl);
 568     reg.register_early_lint_pass(box cargo_common_metadata::CargoCommonMetadata);
 569     reg.register_early_lint_pass(box multiple_crate_versions::MultipleCrateVersions);
 570     reg.register_early_lint_pass(box wildcard_dependencies::WildcardDependencies);
 571     reg.register_late_lint_pass(box map_unit_fn::MapUnit);
 572     reg.register_late_lint_pass(box infallible_destructuring_match::InfallibleDestructingMatch);
 573     reg.register_late_lint_pass(box inherent_impl::MultipleInherentImpl::default());
 574     reg.register_late_lint_pass(box neg_cmp_op_on_partial_ord::NoNegCompOpForPartialOrd);
 575     reg.register_late_lint_pass(box unwrap::Unwrap);
 576     reg.register_late_lint_pass(box duration_subsec::DurationSubsec);
 577     reg.register_late_lint_pass(box default_trait_access::DefaultTraitAccess);
 578     reg.register_late_lint_pass(box indexing_slicing::IndexingSlicing);
 579     reg.register_late_lint_pass(box non_copy_const::NonCopyConst);
 580     reg.register_late_lint_pass(box ptr_offset_with_cast::PtrOffsetWithCast);
 581     reg.register_late_lint_pass(box redundant_clone::RedundantClone);
 582     reg.register_late_lint_pass(box slow_vector_initialization::SlowVectorInit);
 583     reg.register_late_lint_pass(box types::RefToMut);
 584     reg.register_late_lint_pass(box assertions_on_constants::AssertionsOnConstants);
 585     reg.register_late_lint_pass(box missing_const_for_fn::MissingConstForFn);
 586     reg.register_late_lint_pass(box transmuting_null::TransmutingNull);
 587     reg.register_late_lint_pass(box path_buf_push_overwrite::PathBufPushOverwrite);
 588     reg.register_late_lint_pass(box checked_conversions::CheckedConversions);
 589     reg.register_late_lint_pass(box integer_division::IntegerDivision);
 590     reg.register_late_lint_pass(box inherent_to_string::InherentToString);
 591
 592     reg.register_lint_group("clippy::restriction", Some("clippy_restriction"), vec![
 593         arithmetic::FLOAT_ARITHMETIC,
 594         arithmetic::INTEGER_ARITHMETIC,
 595         dbg_macro::DBG_MACRO,
 596         else_if_without_else::ELSE_IF_WITHOUT_ELSE,
 597         implicit_return::IMPLICIT_RETURN,
 598         indexing_slicing::INDEXING_SLICING,
 599         inherent_impl::MULTIPLE_INHERENT_IMPL,
 600         integer_division::INTEGER_DIVISION,
 601         literal_representation::DECIMAL_LITERAL_REPRESENTATION,
 602         matches::WILDCARD_ENUM_MATCH_ARM,
 603         mem_forget::MEM_FORGET,
 604         methods::CLONE_ON_REF_PTR,
 605         methods::GET_UNWRAP,
 606         methods::OPTION_UNWRAP_USED,
 607         methods::RESULT_UNWRAP_USED,
 608         methods::WRONG_PUB_SELF_CONVENTION,
 609         misc::FLOAT_CMP_CONST,
 610         missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS,
 611         missing_inline::MISSING_INLINE_IN_PUBLIC_ITEMS,
 612         panic_unimplemented::UNIMPLEMENTED,
 613         shadow::SHADOW_REUSE,
 614         shadow::SHADOW_SAME,
 615         strings::STRING_ADD,
 616         write::PRINT_STDOUT,
 617         write::USE_DEBUG,
 618     ]);
 619
 620     reg.register_lint_group("clippy::pedantic", Some("clippy_pedantic"), vec![
 621         attrs::INLINE_ALWAYS,
 622         checked_conversions::CHECKED_CONVERSIONS,
 623         copies::MATCH_SAME_ARMS,
 624         copy_iterator::COPY_ITERATOR,
 625         default_trait_access::DEFAULT_TRAIT_ACCESS,
 626         derive::EXPL_IMPL_CLONE_ON_COPY,
 627         doc::DOC_MARKDOWN,
 628         empty_enum::EMPTY_ENUM,
 629         enum_glob_use::ENUM_GLOB_USE,
 630         enum_variants::MODULE_NAME_REPETITIONS,
 631         enum_variants::PUB_ENUM_VARIANT_NAMES,
 632         eta_reduction::REDUNDANT_CLOSURE_FOR_METHOD_CALLS,
 633         functions::TOO_MANY_LINES,
 634         if_not_else::IF_NOT_ELSE,
 635         infinite_iter::MAYBE_INFINITE_ITER,
 636         items_after_statements::ITEMS_AFTER_STATEMENTS,
 637         literal_representation::LARGE_DIGIT_GROUPS,
 638         loops::EXPLICIT_INTO_ITER_LOOP,
 639         loops::EXPLICIT_ITER_LOOP,
 640         matches::SINGLE_MATCH_ELSE,
 641         methods::FILTER_MAP,
 642         methods::FILTER_MAP_NEXT,
 643         methods::FIND_MAP,
 644         methods::MAP_FLATTEN,
 645         methods::OPTION_MAP_UNWRAP_OR,
 646         methods::OPTION_MAP_UNWRAP_OR_ELSE,
 647         methods::RESULT_MAP_UNWRAP_OR_ELSE,
 648         misc::USED_UNDERSCORE_BINDING,
 649         misc_early::UNSEPARATED_LITERAL_SUFFIX,
 650         mut_mut::MUT_MUT,
 651         needless_continue::NEEDLESS_CONTINUE,
 652         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 653         non_expressive_names::SIMILAR_NAMES,
 654         replace_consts::REPLACE_CONSTS,
 655         shadow::SHADOW_UNRELATED,
 656         strings::STRING_ADD_ASSIGN,
 657         types::CAST_POSSIBLE_TRUNCATION,
 658         types::CAST_POSSIBLE_WRAP,
 659         types::CAST_PRECISION_LOSS,
 660         types::CAST_SIGN_LOSS,
 661         types::INVALID_UPCAST_COMPARISONS,
 662         types::LINKEDLIST,
 663         unicode::NON_ASCII_LITERAL,
 664         unicode::UNICODE_NOT_NFC,
 665         use_self::USE_SELF,
 666     ]);
 667
 668     reg.register_lint_group("clippy::internal", Some("clippy_internal"), vec![
 669         utils::internal_lints::CLIPPY_LINTS_INTERNAL,
 670         utils::internal_lints::COMPILER_LINT_FUNCTIONS,
 671         utils::internal_lints::LINT_WITHOUT_LINT_PASS,
 672         utils::internal_lints::OUTER_EXPN_EXPN_INFO,
 673     ]);
 674
 675     reg.register_lint_group("clippy::all", Some("clippy"), vec![
 676         approx_const::APPROX_CONSTANT,
 677         assertions_on_constants::ASSERTIONS_ON_CONSTANTS,
 678         assign_ops::ASSIGN_OP_PATTERN,
 679         assign_ops::MISREFACTORED_ASSIGN_OP,
 680         attrs::DEPRECATED_CFG_ATTR,
 681         attrs::DEPRECATED_SEMVER,
 682         attrs::UNKNOWN_CLIPPY_LINTS,
 683         attrs::USELESS_ATTRIBUTE,
 684         bit_mask::BAD_BIT_MASK,
 685         bit_mask::INEFFECTIVE_BIT_MASK,
 686         bit_mask::VERBOSE_BIT_MASK,
 687         blacklisted_name::BLACKLISTED_NAME,
 688         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 689         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 690         booleans::LOGIC_BUG,
 691         booleans::NONMINIMAL_BOOL,
 692         bytecount::NAIVE_BYTECOUNT,
 693         cognitive_complexity::COGNITIVE_COMPLEXITY,
 694         collapsible_if::COLLAPSIBLE_IF,
 695         copies::IFS_SAME_COND,
 696         copies::IF_SAME_THEN_ELSE,
 697         derive::DERIVE_HASH_XOR_EQ,
 698         double_comparison::DOUBLE_COMPARISONS,
 699         double_parens::DOUBLE_PARENS,
 700         drop_bounds::DROP_BOUNDS,
 701         drop_forget_ref::DROP_COPY,
 702         drop_forget_ref::DROP_REF,
 703         drop_forget_ref::FORGET_COPY,
 704         drop_forget_ref::FORGET_REF,
 705         duration_subsec::DURATION_SUBSEC,
 706         entry::MAP_ENTRY,
 707         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 708         enum_variants::ENUM_VARIANT_NAMES,
 709         enum_variants::MODULE_INCEPTION,
 710         eq_op::EQ_OP,
 711         eq_op::OP_REF,
 712         erasing_op::ERASING_OP,
 713         escape::BOXED_LOCAL,
 714         eta_reduction::REDUNDANT_CLOSURE,
 715         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 716         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 717         excessive_precision::EXCESSIVE_PRECISION,
 718         explicit_write::EXPLICIT_WRITE,
 719         format::USELESS_FORMAT,
 720         formatting::POSSIBLE_MISSING_COMMA,
 721         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 722         formatting::SUSPICIOUS_ELSE_FORMATTING,
 723         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 724         functions::TOO_MANY_ARGUMENTS,
 725         get_last_with_len::GET_LAST_WITH_LEN,
 726         identity_conversion::IDENTITY_CONVERSION,
 727         identity_op::IDENTITY_OP,
 728         indexing_slicing::OUT_OF_BOUNDS_INDEXING,
 729         infallible_destructuring_match::INFALLIBLE_DESTRUCTURING_MATCH,
 730         infinite_iter::INFINITE_ITER,
 731         inherent_to_string::INHERENT_TO_STRING,
 732         inherent_to_string::INHERENT_TO_STRING_SHADOW_DISPLAY,
 733         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 734         int_plus_one::INT_PLUS_ONE,
 735         invalid_ref::INVALID_REF,
 736         large_enum_variant::LARGE_ENUM_VARIANT,
 737         len_zero::LEN_WITHOUT_IS_EMPTY,
 738         len_zero::LEN_ZERO,
 739         let_if_seq::USELESS_LET_IF_SEQ,
 740         lifetimes::EXTRA_UNUSED_LIFETIMES,
 741         lifetimes::NEEDLESS_LIFETIMES,
 742         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 743         literal_representation::MISTYPED_LITERAL_SUFFIXES,
 744         literal_representation::UNREADABLE_LITERAL,
 745         loops::EMPTY_LOOP,
 746         loops::EXPLICIT_COUNTER_LOOP,
 747         loops::FOR_KV_MAP,
 748         loops::FOR_LOOP_OVER_OPTION,
 749         loops::FOR_LOOP_OVER_RESULT,
 750         loops::ITER_NEXT_LOOP,
 751         loops::MANUAL_MEMCPY,
 752         loops::MUT_RANGE_BOUND,
 753         loops::NEEDLESS_COLLECT,
 754         loops::NEEDLESS_RANGE_LOOP,
 755         loops::NEVER_LOOP,
 756         loops::REVERSE_RANGE_LOOP,
 757         loops::UNUSED_COLLECT,
 758         loops::WHILE_IMMUTABLE_CONDITION,
 759         loops::WHILE_LET_LOOP,
 760         loops::WHILE_LET_ON_ITERATOR,
 761         map_clone::MAP_CLONE,
 762         map_unit_fn::OPTION_MAP_UNIT_FN,
 763         map_unit_fn::RESULT_MAP_UNIT_FN,
 764         matches::MATCH_AS_REF,
 765         matches::MATCH_BOOL,
 766         matches::MATCH_OVERLAPPING_ARM,
 767         matches::MATCH_REF_PATS,
 768         matches::MATCH_WILD_ERR_ARM,
 769         matches::SINGLE_MATCH,
 770         mem_discriminant::MEM_DISCRIMINANT_NON_ENUM,
 771         mem_replace::MEM_REPLACE_OPTION_WITH_NONE,
 772         methods::CHARS_LAST_CMP,
 773         methods::CHARS_NEXT_CMP,
 774         methods::CLONE_DOUBLE_REF,
 775         methods::CLONE_ON_COPY,
 776         methods::EXPECT_FUN_CALL,
 777         methods::FILTER_NEXT,
 778         methods::INTO_ITER_ON_ARRAY,
 779         methods::INTO_ITER_ON_REF,
 780         methods::ITER_CLONED_COLLECT,
 781         methods::ITER_NTH,
 782         methods::ITER_SKIP_NEXT,
 783         methods::NEW_RET_NO_SELF,
 784         methods::OK_EXPECT,
 785         methods::OPTION_MAP_OR_NONE,
 786         methods::OR_FUN_CALL,
 787         methods::SEARCH_IS_SOME,
 788         methods::SHOULD_IMPLEMENT_TRAIT,
 789         methods::SINGLE_CHAR_PATTERN,
 790         methods::STRING_EXTEND_CHARS,
 791         methods::TEMPORARY_CSTRING_AS_PTR,
 792         methods::UNNECESSARY_FILTER_MAP,
 793         methods::UNNECESSARY_FOLD,
 794         methods::USELESS_ASREF,
 795         methods::WRONG_SELF_CONVENTION,
 796         minmax::MIN_MAX,
 797         misc::CMP_NAN,
 798         misc::CMP_OWNED,
 799         misc::FLOAT_CMP,
 800         misc::MODULO_ONE,
 801         misc::REDUNDANT_PATTERN,
 802         misc::SHORT_CIRCUIT_STATEMENT,
 803         misc::TOPLEVEL_REF_ARG,
 804         misc::ZERO_PTR,
 805         misc_early::BUILTIN_TYPE_SHADOW,
 806         misc_early::DOUBLE_NEG,
 807         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 808         misc_early::MIXED_CASE_HEX_LITERALS,
 809         misc_early::REDUNDANT_CLOSURE_CALL,
 810         misc_early::UNNEEDED_FIELD_PATTERN,
 811         misc_early::ZERO_PREFIXED_LITERAL,
 812         mut_reference::UNNECESSARY_MUT_PASSED,
 813         mutex_atomic::MUTEX_ATOMIC,
 814         needless_bool::BOOL_COMPARISON,
 815         needless_bool::NEEDLESS_BOOL,
 816         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 817         needless_update::NEEDLESS_UPDATE,
 818         neg_cmp_op_on_partial_ord::NEG_CMP_OP_ON_PARTIAL_ORD,
 819         neg_multiply::NEG_MULTIPLY,
 820         new_without_default::NEW_WITHOUT_DEFAULT,
 821         no_effect::NO_EFFECT,
 822         no_effect::UNNECESSARY_OPERATION,
 823         non_copy_const::BORROW_INTERIOR_MUTABLE_CONST,
 824         non_copy_const::DECLARE_INTERIOR_MUTABLE_CONST,
 825         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 826         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 827         ok_if_let::IF_LET_SOME_RESULT,
 828         open_options::NONSENSICAL_OPEN_OPTIONS,
 829         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 830         panic_unimplemented::PANIC_PARAMS,
 831         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 832         precedence::PRECEDENCE,
 833         ptr::CMP_NULL,
 834         ptr::MUT_FROM_REF,
 835         ptr::PTR_ARG,
 836         ptr_offset_with_cast::PTR_OFFSET_WITH_CAST,
 837         question_mark::QUESTION_MARK,
 838         ranges::ITERATOR_STEP_BY_ZERO,
 839         ranges::RANGE_MINUS_ONE,
 840         ranges::RANGE_PLUS_ONE,
 841         ranges::RANGE_ZIP_WITH_LEN,
 842         redundant_field_names::REDUNDANT_FIELD_NAMES,
 843         redundant_pattern_matching::REDUNDANT_PATTERN_MATCHING,
 844         redundant_static_lifetimes::REDUNDANT_STATIC_LIFETIMES,
 845         reference::DEREF_ADDROF,
 846         reference::REF_IN_DEREF,
 847         regex::INVALID_REGEX,
 848         regex::REGEX_MACRO,
 849         regex::TRIVIAL_REGEX,
 850         returns::LET_AND_RETURN,
 851         returns::NEEDLESS_RETURN,
 852         returns::UNUSED_UNIT,
 853         serde_api::SERDE_API_MISUSE,
 854         slow_vector_initialization::SLOW_VECTOR_INITIALIZATION,
 855         strings::STRING_LIT_AS_BYTES,
 856         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 857         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 858         swap::ALMOST_SWAPPED,
 859         swap::MANUAL_SWAP,
 860         temporary_assignment::TEMPORARY_ASSIGNMENT,
 861         transmute::CROSSPOINTER_TRANSMUTE,
 862         transmute::TRANSMUTE_BYTES_TO_STR,
 863         transmute::TRANSMUTE_INT_TO_BOOL,
 864         transmute::TRANSMUTE_INT_TO_CHAR,
 865         transmute::TRANSMUTE_INT_TO_FLOAT,
 866         transmute::TRANSMUTE_PTR_TO_PTR,
 867         transmute::TRANSMUTE_PTR_TO_REF,
 868         transmute::USELESS_TRANSMUTE,
 869         transmute::WRONG_TRANSMUTE,
 870         transmuting_null::TRANSMUTING_NULL,
 871         trivially_copy_pass_by_ref::TRIVIALLY_COPY_PASS_BY_REF,
 872         try_err::TRY_ERR,
 873         types::ABSURD_EXTREME_COMPARISONS,
 874         types::BORROWED_BOX,
 875         types::BOX_VEC,
 876         types::CAST_LOSSLESS,
 877         types::CAST_PTR_ALIGNMENT,
 878         types::CAST_REF_TO_MUT,
 879         types::CHAR_LIT_AS_U8,
 880         types::FN_TO_NUMERIC_CAST,
 881         types::FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
 882         types::IMPLICIT_HASHER,
 883         types::LET_UNIT_VALUE,
 884         types::OPTION_OPTION,
 885         types::TYPE_COMPLEXITY,
 886         types::UNIT_ARG,
 887         types::UNIT_CMP,
 888         types::UNNECESSARY_CAST,
 889         types::VEC_BOX,
 890         unicode::ZERO_WIDTH_SPACE,
 891         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 892         unused_io_amount::UNUSED_IO_AMOUNT,
 893         unused_label::UNUSED_LABEL,
 894         vec::USELESS_VEC,
 895         write::PRINTLN_EMPTY_STRING,
 896         write::PRINT_LITERAL,
 897         write::PRINT_WITH_NEWLINE,
 898         write::WRITELN_EMPTY_STRING,
 899         write::WRITE_LITERAL,
 900         write::WRITE_WITH_NEWLINE,
 901         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 902     ]);
 903
 904     reg.register_lint_group("clippy::style", Some("clippy_style"), vec![
 905         assertions_on_constants::ASSERTIONS_ON_CONSTANTS,
 906         assign_ops::ASSIGN_OP_PATTERN,
 907         attrs::UNKNOWN_CLIPPY_LINTS,
 908         bit_mask::VERBOSE_BIT_MASK,
 909         blacklisted_name::BLACKLISTED_NAME,
 910         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 911         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 912         collapsible_if::COLLAPSIBLE_IF,
 913         enum_variants::ENUM_VARIANT_NAMES,
 914         enum_variants::MODULE_INCEPTION,
 915         eq_op::OP_REF,
 916         eta_reduction::REDUNDANT_CLOSURE,
 917         excessive_precision::EXCESSIVE_PRECISION,
 918         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 919         formatting::SUSPICIOUS_ELSE_FORMATTING,
 920         infallible_destructuring_match::INFALLIBLE_DESTRUCTURING_MATCH,
 921         inherent_to_string::INHERENT_TO_STRING,
 922         len_zero::LEN_WITHOUT_IS_EMPTY,
 923         len_zero::LEN_ZERO,
 924         let_if_seq::USELESS_LET_IF_SEQ,
 925         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 926         literal_representation::UNREADABLE_LITERAL,
 927         loops::EMPTY_LOOP,
 928         loops::FOR_KV_MAP,
 929         loops::NEEDLESS_RANGE_LOOP,
 930         loops::WHILE_LET_ON_ITERATOR,
 931         map_clone::MAP_CLONE,
 932         matches::MATCH_BOOL,
 933         matches::MATCH_OVERLAPPING_ARM,
 934         matches::MATCH_REF_PATS,
 935         matches::MATCH_WILD_ERR_ARM,
 936         matches::SINGLE_MATCH,
 937         mem_replace::MEM_REPLACE_OPTION_WITH_NONE,
 938         methods::CHARS_LAST_CMP,
 939         methods::INTO_ITER_ON_REF,
 940         methods::ITER_CLONED_COLLECT,
 941         methods::ITER_SKIP_NEXT,
 942         methods::NEW_RET_NO_SELF,
 943         methods::OK_EXPECT,
 944         methods::OPTION_MAP_OR_NONE,
 945         methods::SHOULD_IMPLEMENT_TRAIT,
 946         methods::STRING_EXTEND_CHARS,
 947         methods::UNNECESSARY_FOLD,
 948         methods::WRONG_SELF_CONVENTION,
 949         misc::REDUNDANT_PATTERN,
 950         misc::TOPLEVEL_REF_ARG,
 951         misc::ZERO_PTR,
 952         misc_early::BUILTIN_TYPE_SHADOW,
 953         misc_early::DOUBLE_NEG,
 954         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 955         misc_early::MIXED_CASE_HEX_LITERALS,
 956         misc_early::UNNEEDED_FIELD_PATTERN,
 957         mut_reference::UNNECESSARY_MUT_PASSED,
 958         neg_multiply::NEG_MULTIPLY,
 959         new_without_default::NEW_WITHOUT_DEFAULT,
 960         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 961         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 962         ok_if_let::IF_LET_SOME_RESULT,
 963         panic_unimplemented::PANIC_PARAMS,
 964         ptr::CMP_NULL,
 965         ptr::PTR_ARG,
 966         question_mark::QUESTION_MARK,
 967         redundant_field_names::REDUNDANT_FIELD_NAMES,
 968         redundant_pattern_matching::REDUNDANT_PATTERN_MATCHING,
 969         redundant_static_lifetimes::REDUNDANT_STATIC_LIFETIMES,
 970         regex::REGEX_MACRO,
 971         regex::TRIVIAL_REGEX,
 972         returns::LET_AND_RETURN,
 973         returns::NEEDLESS_RETURN,
 974         returns::UNUSED_UNIT,
 975         strings::STRING_LIT_AS_BYTES,
 976         try_err::TRY_ERR,
 977         types::FN_TO_NUMERIC_CAST,
 978         types::FN_TO_NUMERIC_CAST_WITH_TRUNCATION,
 979         types::IMPLICIT_HASHER,
 980         types::LET_UNIT_VALUE,
 981         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 982         write::PRINTLN_EMPTY_STRING,
 983         write::PRINT_LITERAL,
 984         write::PRINT_WITH_NEWLINE,
 985         write::WRITELN_EMPTY_STRING,
 986         write::WRITE_LITERAL,
 987         write::WRITE_WITH_NEWLINE,
 988     ]);
 989
 990     reg.register_lint_group("clippy::complexity", Some("clippy_complexity"), vec![
 991         assign_ops::MISREFACTORED_ASSIGN_OP,
 992         attrs::DEPRECATED_CFG_ATTR,
 993         booleans::NONMINIMAL_BOOL,
 994         cognitive_complexity::COGNITIVE_COMPLEXITY,
 995         double_comparison::DOUBLE_COMPARISONS,
 996         double_parens::DOUBLE_PARENS,
 997         duration_subsec::DURATION_SUBSEC,
 998         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 999         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
1000         explicit_write::EXPLICIT_WRITE,
1001         format::USELESS_FORMAT,
1002         functions::TOO_MANY_ARGUMENTS,
1003         get_last_with_len::GET_LAST_WITH_LEN,
1004         identity_conversion::IDENTITY_CONVERSION,
1005         identity_op::IDENTITY_OP,
1006         int_plus_one::INT_PLUS_ONE,
1007         lifetimes::EXTRA_UNUSED_LIFETIMES,
1008         lifetimes::NEEDLESS_LIFETIMES,
1009         loops::EXPLICIT_COUNTER_LOOP,
1010         loops::MUT_RANGE_BOUND,
1011         loops::WHILE_LET_LOOP,
1012         map_unit_fn::OPTION_MAP_UNIT_FN,
1013         map_unit_fn::RESULT_MAP_UNIT_FN,
1014         matches::MATCH_AS_REF,
1015         methods::CHARS_NEXT_CMP,
1016         methods::CLONE_ON_COPY,
1017         methods::FILTER_NEXT,
1018         methods::SEARCH_IS_SOME,
1019         methods::UNNECESSARY_FILTER_MAP,
1020         methods::USELESS_ASREF,
1021         misc::SHORT_CIRCUIT_STATEMENT,
1022         misc_early::REDUNDANT_CLOSURE_CALL,
1023         misc_early::ZERO_PREFIXED_LITERAL,
1024         needless_bool::BOOL_COMPARISON,
1025         needless_bool::NEEDLESS_BOOL,
1026         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
1027         needless_update::NEEDLESS_UPDATE,
1028         neg_cmp_op_on_partial_ord::NEG_CMP_OP_ON_PARTIAL_ORD,
1029         no_effect::NO_EFFECT,
1030         no_effect::UNNECESSARY_OPERATION,
1031         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
1032         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
1033         precedence::PRECEDENCE,
1034         ptr_offset_with_cast::PTR_OFFSET_WITH_CAST,
1035         ranges::RANGE_MINUS_ONE,
1036         ranges::RANGE_PLUS_ONE,
1037         ranges::RANGE_ZIP_WITH_LEN,
1038         reference::DEREF_ADDROF,
1039         reference::REF_IN_DEREF,
1040         swap::MANUAL_SWAP,
1041         temporary_assignment::TEMPORARY_ASSIGNMENT,
1042         transmute::CROSSPOINTER_TRANSMUTE,
1043         transmute::TRANSMUTE_BYTES_TO_STR,
1044         transmute::TRANSMUTE_INT_TO_BOOL,
1045         transmute::TRANSMUTE_INT_TO_CHAR,
1046         transmute::TRANSMUTE_INT_TO_FLOAT,
1047         transmute::TRANSMUTE_PTR_TO_PTR,
1048         transmute::TRANSMUTE_PTR_TO_REF,
1049         transmute::USELESS_TRANSMUTE,
1050         types::BORROWED_BOX,
1051         types::CAST_LOSSLESS,
1052         types::CHAR_LIT_AS_U8,
1053         types::OPTION_OPTION,
1054         types::TYPE_COMPLEXITY,
1055         types::UNIT_ARG,
1056         types::UNNECESSARY_CAST,
1057         types::VEC_BOX,
1058         unused_label::UNUSED_LABEL,
1059         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
1060     ]);
1061
1062     reg.register_lint_group("clippy::correctness", Some("clippy_correctness"), vec![
1063         approx_const::APPROX_CONSTANT,
1064         attrs::DEPRECATED_SEMVER,
1065         attrs::USELESS_ATTRIBUTE,
1066         bit_mask::BAD_BIT_MASK,
1067         bit_mask::INEFFECTIVE_BIT_MASK,
1068         booleans::LOGIC_BUG,
1069         copies::IFS_SAME_COND,
1070         copies::IF_SAME_THEN_ELSE,
1071         derive::DERIVE_HASH_XOR_EQ,
1072         drop_bounds::DROP_BOUNDS,
1073         drop_forget_ref::DROP_COPY,
1074         drop_forget_ref::DROP_REF,
1075         drop_forget_ref::FORGET_COPY,
1076         drop_forget_ref::FORGET_REF,
1077         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
1078         eq_op::EQ_OP,
1079         erasing_op::ERASING_OP,
1080         formatting::POSSIBLE_MISSING_COMMA,
1081         functions::NOT_UNSAFE_PTR_ARG_DEREF,
1082         indexing_slicing::OUT_OF_BOUNDS_INDEXING,
1083         infinite_iter::INFINITE_ITER,
1084         inherent_to_string::INHERENT_TO_STRING_SHADOW_DISPLAY,
1085         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
1086         invalid_ref::INVALID_REF,
1087         literal_representation::MISTYPED_LITERAL_SUFFIXES,
1088         loops::FOR_LOOP_OVER_OPTION,
1089         loops::FOR_LOOP_OVER_RESULT,
1090         loops::ITER_NEXT_LOOP,
1091         loops::NEVER_LOOP,
1092         loops::REVERSE_RANGE_LOOP,
1093         loops::WHILE_IMMUTABLE_CONDITION,
1094         mem_discriminant::MEM_DISCRIMINANT_NON_ENUM,
1095         methods::CLONE_DOUBLE_REF,
1096         methods::INTO_ITER_ON_ARRAY,
1097         methods::TEMPORARY_CSTRING_AS_PTR,
1098         minmax::MIN_MAX,
1099         misc::CMP_NAN,
1100         misc::FLOAT_CMP,
1101         misc::MODULO_ONE,
1102         non_copy_const::BORROW_INTERIOR_MUTABLE_CONST,
1103         non_copy_const::DECLARE_INTERIOR_MUTABLE_CONST,
1104         open_options::NONSENSICAL_OPEN_OPTIONS,
1105         ptr::MUT_FROM_REF,
1106         ranges::ITERATOR_STEP_BY_ZERO,
1107         regex::INVALID_REGEX,
1108         serde_api::SERDE_API_MISUSE,
1109         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
1110         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
1111         swap::ALMOST_SWAPPED,
1112         transmute::WRONG_TRANSMUTE,
1113         transmuting_null::TRANSMUTING_NULL,
1114         types::ABSURD_EXTREME_COMPARISONS,
1115         types::CAST_PTR_ALIGNMENT,
1116         types::CAST_REF_TO_MUT,
1117         types::UNIT_CMP,
1118         unicode::ZERO_WIDTH_SPACE,
1119         unused_io_amount::UNUSED_IO_AMOUNT,
1120     ]);
1121
1122     reg.register_lint_group("clippy::perf", Some("clippy_perf"), vec![
1123         bytecount::NAIVE_BYTECOUNT,
1124         entry::MAP_ENTRY,
1125         escape::BOXED_LOCAL,
1126         large_enum_variant::LARGE_ENUM_VARIANT,
1127         loops::MANUAL_MEMCPY,
1128         loops::NEEDLESS_COLLECT,
1129         loops::UNUSED_COLLECT,
1130         methods::EXPECT_FUN_CALL,
1131         methods::ITER_NTH,
1132         methods::OR_FUN_CALL,
1133         methods::SINGLE_CHAR_PATTERN,
1134         misc::CMP_OWNED,
1135         mutex_atomic::MUTEX_ATOMIC,
1136         slow_vector_initialization::SLOW_VECTOR_INITIALIZATION,
1137         trivially_copy_pass_by_ref::TRIVIALLY_COPY_PASS_BY_REF,
1138         types::BOX_VEC,
1139         vec::USELESS_VEC,
1140     ]);
1141
1142     reg.register_lint_group("clippy::cargo", Some("clippy_cargo"), vec![
1143         cargo_common_metadata::CARGO_COMMON_METADATA,
1144         multiple_crate_versions::MULTIPLE_CRATE_VERSIONS,
1145         wildcard_dependencies::WILDCARD_DEPENDENCIES,
1146     ]);
1147
1148     reg.register_lint_group("clippy::nursery", Some("clippy_nursery"), vec![
1149         attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
1150         fallible_impl_from::FALLIBLE_IMPL_FROM,
1151         missing_const_for_fn::MISSING_CONST_FOR_FN,
1152         mutex_atomic::MUTEX_INTEGER,
1153         needless_borrow::NEEDLESS_BORROW,
1154         path_buf_push_overwrite::PATH_BUF_PUSH_OVERWRITE,
1155         redundant_clone::REDUNDANT_CLONE,
1156         unwrap::PANICKING_UNWRAP,
1157         unwrap::UNNECESSARY_UNWRAP,
1158     ]);
1159 }
1160
1161 /// Register renamed lints.
1162 ///
1163 /// Used in `./src/driver.rs`.
1164 pub fn register_renamed(ls: &mut rustc::lint::LintStore) {
1165     ls.register_renamed("clippy::stutter", "clippy::module_name_repetitions");
1166     ls.register_renamed("clippy::new_without_default_derive", "clippy::new_without_default");
1167     ls.register_renamed("clippy::cyclomatic_complexity", "clippy::cognitive_complexity");
1168     ls.register_renamed("clippy::const_static_lifetime", "clippy::redundant_static_lifetimes");
1169 }
1170
1171 // only exists to let the dogfood integration test works.
1172 // Don't run clippy as an executable directly
1173 #[allow(dead_code)]
1174 fn main() {
1175     panic!("Please use the cargo-clippy executable");
1176 }