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