clippy_lints/src/lib.rs

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