clippy_lints/src/lib.rs

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