clippy_lints/src/lib.rs

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