clippy_lints/src/lib.rs

   1 // error-pattern:cargo-clippy
   2
   3 #![feature(box_syntax)]
   4 #![feature(custom_attribute)]
   5 #![feature(rustc_private)]
   6 #![feature(slice_patterns)]
   7 #![feature(stmt_expr_attributes)]
   8 #![feature(conservative_impl_trait)]
   9 #![feature(range_contains)]
  10 #![feature(macro_vis_matcher)]
  11 #![allow(unknown_lints, indexing_slicing, shadow_reuse, missing_docs_in_private_items)]
  12 #![recursion_limit = "256"]
  13 // FIXME(mark-i-m) remove after i128 stablization merges
  14 #![allow(stable_features)]
  15 #![feature(i128, i128_type)]
  16
  17 #[macro_use]
  18 extern crate rustc;
  19 extern crate rustc_typeck;
  20 extern crate syntax;
  21 extern crate syntax_pos;
  22
  23 extern crate toml;
  24
  25 // for unicode nfc normalization
  26
  27 extern crate unicode_normalization;
  28
  29 // for semver check in attrs.rs
  30
  31 extern crate semver;
  32
  33 // for regex checking
  34
  35 extern crate regex_syntax;
  36
  37 // for finding minimal boolean expressions
  38
  39 extern crate quine_mc_cluskey;
  40
  41 extern crate rustc_const_math;
  42 extern crate rustc_errors;
  43 extern crate rustc_plugin;
  44
  45 #[macro_use]
  46 extern crate matches as matches_macro;
  47
  48 extern crate serde;
  49 #[macro_use]
  50 extern crate serde_derive;
  51
  52 #[macro_use]
  53 extern crate lazy_static;
  54
  55 extern crate itertools;
  56 extern crate pulldown_cmark;
  57 extern crate url;
  58
  59 #[macro_use]
  60 extern crate if_chain;
  61
  62 macro_rules! declare_clippy_lint {
  63     { pub $name:tt, style, $description:tt } => {
  64         declare_lint! { pub $name, Warn, $description }
  65     };
  66     { pub $name:tt, correctness, $description:tt } => {
  67         declare_lint! { pub $name, Deny, $description }
  68     };
  69     { pub $name:tt, complexity, $description:tt } => {
  70         declare_lint! { pub $name, Warn, $description }
  71     };
  72     { pub $name:tt, perf, $description:tt } => {
  73         declare_lint! { pub $name, Warn, $description }
  74     };
  75     { pub $name:tt, pedantic, $description:tt } => {
  76         declare_lint! { pub $name, Allow, $description }
  77     };
  78     { pub $name:tt, restriction, $description:tt } => {
  79         declare_lint! { pub $name, Allow, $description }
  80     };
  81     { pub $name:tt, nursery, $description:tt } => {
  82         declare_lint! { pub $name, Allow, $description }
  83     };
  84     { pub $name:tt, internal, $description:tt } => {
  85         declare_lint! { pub $name, Allow, $description }
  86     };
  87     { pub $name:tt, internal_warn, $description:tt } => {
  88         declare_lint! { pub $name, Warn, $description }
  89     };
  90 }
  91
  92 pub mod consts;
  93 #[macro_use]
  94 pub mod utils;
  95
  96 // begin lints modules, do not remove this comment, it’s used in `update_lints`
  97 pub mod approx_const;
  98 pub mod arithmetic;
  99 pub mod array_indexing;
 100 pub mod assign_ops;
 101 pub mod attrs;
 102 pub mod bit_mask;
 103 pub mod blacklisted_name;
 104 pub mod block_in_if_condition;
 105 pub mod booleans;
 106 pub mod bytecount;
 107 pub mod collapsible_if;
 108 pub mod const_static_lifetime;
 109 pub mod copies;
 110 pub mod cyclomatic_complexity;
 111 pub mod derive;
 112 pub mod doc;
 113 pub mod double_comparison;
 114 pub mod double_parens;
 115 pub mod drop_forget_ref;
 116 pub mod else_if_without_else;
 117 pub mod empty_enum;
 118 pub mod entry;
 119 pub mod enum_clike;
 120 pub mod enum_glob_use;
 121 pub mod enum_variants;
 122 pub mod eq_op;
 123 pub mod erasing_op;
 124 pub mod escape;
 125 pub mod eta_reduction;
 126 pub mod eval_order_dependence;
 127 pub mod explicit_write;
 128 pub mod fallible_impl_from;
 129 pub mod format;
 130 pub mod formatting;
 131 pub mod functions;
 132 pub mod identity_conversion;
 133 pub mod identity_op;
 134 pub mod if_let_redundant_pattern_matching;
 135 pub mod if_not_else;
 136 pub mod infinite_iter;
 137 pub mod inline_fn_without_body;
 138 pub mod int_plus_one;
 139 pub mod invalid_ref;
 140 pub mod items_after_statements;
 141 pub mod large_enum_variant;
 142 pub mod len_zero;
 143 pub mod let_if_seq;
 144 pub mod lifetimes;
 145 pub mod literal_representation;
 146 pub mod loops;
 147 pub mod map_clone;
 148 pub mod matches;
 149 pub mod mem_forget;
 150 pub mod methods;
 151 pub mod minmax;
 152 pub mod misc;
 153 pub mod misc_early;
 154 pub mod missing_doc;
 155 pub mod mut_mut;
 156 pub mod mut_reference;
 157 pub mod mutex_atomic;
 158 pub mod needless_bool;
 159 pub mod needless_borrow;
 160 pub mod needless_borrowed_ref;
 161 pub mod needless_continue;
 162 pub mod needless_pass_by_value;
 163 pub mod needless_update;
 164 pub mod neg_multiply;
 165 pub mod new_without_default;
 166 pub mod no_effect;
 167 pub mod non_expressive_names;
 168 pub mod ok_if_let;
 169 pub mod open_options;
 170 pub mod overflow_check_conditional;
 171 pub mod panic;
 172 pub mod partialeq_ne_impl;
 173 pub mod precedence;
 174 pub mod ptr;
 175 pub mod question_mark;
 176 pub mod ranges;
 177 pub mod redundant_field_names;
 178 pub mod reference;
 179 pub mod regex;
 180 pub mod replace_consts;
 181 pub mod returns;
 182 pub mod serde_api;
 183 pub mod shadow;
 184 pub mod strings;
 185 pub mod suspicious_trait_impl;
 186 pub mod swap;
 187 pub mod temporary_assignment;
 188 pub mod transmute;
 189 pub mod types;
 190 pub mod unicode;
 191 pub mod unsafe_removed_from_name;
 192 pub mod unused_io_amount;
 193 pub mod unused_label;
 194 pub mod use_self;
 195 pub mod vec;
 196 pub mod write;
 197 pub mod zero_div_zero;
 198 // end lints modules, do not remove this comment, it’s used in `update_lints`
 199
 200 mod reexport {
 201     pub use syntax::ast::{Name, NodeId};
 202 }
 203
 204 #[cfg_attr(rustfmt, rustfmt_skip)]
 205 pub fn register_plugins(reg: &mut rustc_plugin::Registry) {
 206     let conf = match utils::conf::file_from_args(reg.args()) {
 207         Ok(file_name) => {
 208             // if the user specified a file, it must exist, otherwise default to `clippy.toml` but
 209             // do not require the file to exist
 210             let file_name = if let Some(file_name) = file_name {
 211                 Some(file_name)
 212             } else {
 213                 match utils::conf::lookup_conf_file() {
 214                     Ok(path) => path,
 215                     Err(error) => {
 216                         reg.sess.struct_err(&format!("error finding Clippy's configuration file: {}", error)).emit();
 217                         None
 218                     }
 219                 }
 220             };
 221
 222             let file_name = file_name.map(|file_name| if file_name.is_relative() {
 223                 reg.sess
 224                     .local_crate_source_file
 225                     .as_ref()
 226                     .and_then(|file| std::path::Path::new(&file).parent().map(std::path::Path::to_path_buf))
 227                     .unwrap_or_default()
 228                     .join(file_name)
 229             } else {
 230                 file_name
 231             });
 232
 233             let (conf, errors) = utils::conf::read(file_name.as_ref().map(|p| p.as_ref()));
 234
 235             // all conf errors are non-fatal, we just use the default conf in case of error
 236             for error in errors {
 237                 reg.sess.struct_err(&format!("error reading Clippy's configuration file `{}`: {}", file_name.as_ref().and_then(|p| p.to_str()).unwrap_or(""), error)).emit();
 238             }
 239
 240             conf
 241         }
 242         Err((err, span)) => {
 243             reg.sess.struct_span_err(span, err)
 244                     .span_note(span, "Clippy will use default configuration")
 245                     .emit();
 246             toml::from_str("").expect("we never error on empty config files")
 247         }
 248     };
 249
 250     let mut store = reg.sess.lint_store.borrow_mut();
 251     store.register_removed(
 252         "should_assert_eq",
 253         "`assert!()` will be more flexible with RFC 2011",
 254     );
 255     store.register_removed(
 256         "extend_from_slice",
 257         "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice",
 258     );
 259     store.register_removed(
 260         "range_step_by_zero",
 261         "`iterator.step_by(0)` panics nowadays",
 262     );
 263     store.register_removed(
 264         "unstable_as_slice",
 265         "`Vec::as_slice` has been stabilized in 1.7",
 266     );
 267     store.register_removed(
 268         "unstable_as_mut_slice",
 269         "`Vec::as_mut_slice` has been stabilized in 1.7",
 270     );
 271     store.register_removed(
 272         "str_to_string",
 273         "using `str::to_string` is common even today and specialization will likely happen soon",
 274     );
 275     store.register_removed(
 276         "string_to_string",
 277         "using `string::to_string` is common even today and specialization will likely happen soon",
 278     );
 279     store.register_removed(
 280         "misaligned_transmute",
 281         "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",
 282     );
 283     // end deprecated lints, do not remove this comment, it’s used in `update_lints`
 284
 285     reg.register_late_lint_pass(box serde_api::Serde);
 286     reg.register_early_lint_pass(box utils::internal_lints::Clippy);
 287     reg.register_late_lint_pass(box utils::internal_lints::LintWithoutLintPass::default());
 288     reg.register_late_lint_pass(box utils::inspector::Pass);
 289     reg.register_late_lint_pass(box utils::author::Pass);
 290     reg.register_late_lint_pass(box types::TypePass);
 291     reg.register_late_lint_pass(box booleans::NonminimalBool);
 292     reg.register_late_lint_pass(box eq_op::EqOp);
 293     reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold));
 294     reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse);
 295     reg.register_late_lint_pass(box enum_clike::UnportableVariant);
 296     reg.register_late_lint_pass(box bit_mask::BitMask::new(conf.verbose_bit_mask_threshold));
 297     reg.register_late_lint_pass(box ptr::PointerPass);
 298     reg.register_late_lint_pass(box needless_bool::NeedlessBool);
 299     reg.register_late_lint_pass(box needless_bool::BoolComparison);
 300     reg.register_late_lint_pass(box approx_const::Pass);
 301     reg.register_late_lint_pass(box misc::Pass);
 302     reg.register_early_lint_pass(box precedence::Precedence);
 303     reg.register_early_lint_pass(box needless_continue::NeedlessContinue);
 304     reg.register_late_lint_pass(box eta_reduction::EtaPass);
 305     reg.register_late_lint_pass(box identity_op::IdentityOp);
 306     reg.register_late_lint_pass(box erasing_op::ErasingOp);
 307     reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatements);
 308     reg.register_late_lint_pass(box mut_mut::MutMut);
 309     reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed);
 310     reg.register_late_lint_pass(box len_zero::LenZero);
 311     reg.register_late_lint_pass(box attrs::AttrPass);
 312     reg.register_early_lint_pass(box collapsible_if::CollapsibleIf);
 313     reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition);
 314     reg.register_late_lint_pass(box unicode::Unicode);
 315     reg.register_late_lint_pass(box strings::StringAdd);
 316     reg.register_early_lint_pass(box returns::ReturnPass);
 317     reg.register_late_lint_pass(box methods::Pass);
 318     reg.register_late_lint_pass(box shadow::Pass);
 319     reg.register_late_lint_pass(box types::LetPass);
 320     reg.register_late_lint_pass(box types::UnitCmp);
 321     reg.register_late_lint_pass(box loops::Pass);
 322     reg.register_late_lint_pass(box lifetimes::LifetimePass);
 323     reg.register_late_lint_pass(box entry::HashMapLint);
 324     reg.register_late_lint_pass(box ranges::Pass);
 325     reg.register_late_lint_pass(box types::CastPass);
 326     reg.register_late_lint_pass(box types::TypeComplexityPass::new(conf.type_complexity_threshold));
 327     reg.register_late_lint_pass(box matches::MatchPass);
 328     reg.register_late_lint_pass(box minmax::MinMaxPass);
 329     reg.register_late_lint_pass(box open_options::NonSensical);
 330     reg.register_late_lint_pass(box zero_div_zero::Pass);
 331     reg.register_late_lint_pass(box mutex_atomic::MutexAtomic);
 332     reg.register_late_lint_pass(box needless_update::Pass);
 333     reg.register_late_lint_pass(box needless_borrow::NeedlessBorrow);
 334     reg.register_late_lint_pass(box needless_borrowed_ref::NeedlessBorrowedRef);
 335     reg.register_late_lint_pass(box no_effect::Pass);
 336     reg.register_late_lint_pass(box map_clone::Pass);
 337     reg.register_late_lint_pass(box temporary_assignment::Pass);
 338     reg.register_late_lint_pass(box transmute::Transmute);
 339     reg.register_late_lint_pass(
 340         box cyclomatic_complexity::CyclomaticComplexity::new(conf.cyclomatic_complexity_threshold)
 341     );
 342     reg.register_late_lint_pass(box escape::Pass{too_large_for_stack: conf.too_large_for_stack});
 343     reg.register_early_lint_pass(box misc_early::MiscEarly);
 344     reg.register_late_lint_pass(box array_indexing::ArrayIndexing);
 345     reg.register_late_lint_pass(box panic::Pass);
 346     reg.register_late_lint_pass(box strings::StringLitAsBytes);
 347     reg.register_late_lint_pass(box derive::Derive);
 348     reg.register_late_lint_pass(box types::CharLitAsU8);
 349     reg.register_late_lint_pass(box write::Pass);
 350     reg.register_late_lint_pass(box vec::Pass);
 351     reg.register_early_lint_pass(box non_expressive_names::NonExpressiveNames {
 352         single_char_binding_names_threshold: conf.single_char_binding_names_threshold,
 353     });
 354     reg.register_late_lint_pass(box drop_forget_ref::Pass);
 355     reg.register_late_lint_pass(box empty_enum::EmptyEnum);
 356     reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);
 357     reg.register_late_lint_pass(box types::InvalidUpcastComparisons);
 358     reg.register_late_lint_pass(box regex::Pass::default());
 359     reg.register_late_lint_pass(box copies::CopyAndPaste);
 360     reg.register_late_lint_pass(box format::Pass);
 361     reg.register_early_lint_pass(box formatting::Formatting);
 362     reg.register_late_lint_pass(box swap::Swap);
 363     reg.register_early_lint_pass(box if_not_else::IfNotElse);
 364     reg.register_early_lint_pass(box else_if_without_else::ElseIfWithoutElse);
 365     reg.register_early_lint_pass(box int_plus_one::IntPlusOne);
 366     reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional);
 367     reg.register_late_lint_pass(box unused_label::UnusedLabel);
 368     reg.register_late_lint_pass(box new_without_default::NewWithoutDefault);
 369     reg.register_late_lint_pass(box blacklisted_name::BlackListedName::new(conf.blacklisted_names));
 370     reg.register_late_lint_pass(box functions::Functions::new(conf.too_many_arguments_threshold));
 371     reg.register_early_lint_pass(box doc::Doc::new(conf.doc_valid_idents));
 372     reg.register_late_lint_pass(box neg_multiply::NegMultiply);
 373     reg.register_early_lint_pass(box unsafe_removed_from_name::UnsafeNameRemoval);
 374     reg.register_late_lint_pass(box mem_forget::MemForget);
 375     reg.register_late_lint_pass(box arithmetic::Arithmetic::default());
 376     reg.register_late_lint_pass(box assign_ops::AssignOps);
 377     reg.register_late_lint_pass(box let_if_seq::LetIfSeq);
 378     reg.register_late_lint_pass(box eval_order_dependence::EvalOrderDependence);
 379     reg.register_late_lint_pass(box missing_doc::MissingDoc::new());
 380     reg.register_late_lint_pass(box ok_if_let::Pass);
 381     reg.register_late_lint_pass(box if_let_redundant_pattern_matching::Pass);
 382     reg.register_late_lint_pass(box partialeq_ne_impl::Pass);
 383     reg.register_early_lint_pass(box reference::Pass);
 384     reg.register_early_lint_pass(box double_parens::DoubleParens);
 385     reg.register_late_lint_pass(box unused_io_amount::UnusedIoAmount);
 386     reg.register_late_lint_pass(box large_enum_variant::LargeEnumVariant::new(conf.enum_variant_size_threshold));
 387     reg.register_late_lint_pass(box explicit_write::Pass);
 388     reg.register_late_lint_pass(box needless_pass_by_value::NeedlessPassByValue);
 389     reg.register_early_lint_pass(box literal_representation::LiteralDigitGrouping);
 390     reg.register_early_lint_pass(box literal_representation::LiteralRepresentation::new(
 391             conf.literal_representation_threshold
 392     ));
 393     reg.register_late_lint_pass(box use_self::UseSelf);
 394     reg.register_late_lint_pass(box bytecount::ByteCount);
 395     reg.register_late_lint_pass(box infinite_iter::Pass);
 396     reg.register_late_lint_pass(box inline_fn_without_body::Pass);
 397     reg.register_late_lint_pass(box invalid_ref::InvalidRef);
 398     reg.register_late_lint_pass(box identity_conversion::IdentityConversion::default());
 399     reg.register_late_lint_pass(box types::ImplicitHasher);
 400     reg.register_early_lint_pass(box const_static_lifetime::StaticConst);
 401     reg.register_late_lint_pass(box fallible_impl_from::FallibleImplFrom);
 402     reg.register_late_lint_pass(box replace_consts::ReplaceConsts);
 403     reg.register_late_lint_pass(box types::UnitArg);
 404     reg.register_late_lint_pass(box double_comparison::DoubleComparisonPass);
 405     reg.register_late_lint_pass(box question_mark::QuestionMarkPass);
 406     reg.register_late_lint_pass(box suspicious_trait_impl::SuspiciousImpl);
 407     reg.register_late_lint_pass(box redundant_field_names::RedundantFieldNames);
 408
 409
 410     reg.register_lint_group("clippy_restriction", vec![
 411         arithmetic::FLOAT_ARITHMETIC,
 412         arithmetic::INTEGER_ARITHMETIC,
 413         array_indexing::INDEXING_SLICING,
 414         assign_ops::ASSIGN_OPS,
 415         else_if_without_else::ELSE_IF_WITHOUT_ELSE,
 416         literal_representation::DECIMAL_LITERAL_REPRESENTATION,
 417         mem_forget::MEM_FORGET,
 418         methods::CLONE_ON_REF_PTR,
 419         methods::OPTION_UNWRAP_USED,
 420         methods::RESULT_UNWRAP_USED,
 421         methods::WRONG_PUB_SELF_CONVENTION,
 422         misc::FLOAT_CMP_CONST,
 423         missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS,
 424         write::PRINT_STDOUT,
 425         write::USE_DEBUG,
 426         shadow::SHADOW_REUSE,
 427         shadow::SHADOW_SAME,
 428         shadow::SHADOW_UNRELATED,
 429         strings::STRING_ADD,
 430     ]);
 431
 432     reg.register_lint_group("clippy_pedantic", vec![
 433         attrs::INLINE_ALWAYS,
 434         copies::MATCH_SAME_ARMS,
 435         derive::EXPL_IMPL_CLONE_ON_COPY,
 436         doc::DOC_MARKDOWN,
 437         empty_enum::EMPTY_ENUM,
 438         enum_glob_use::ENUM_GLOB_USE,
 439         enum_variants::PUB_ENUM_VARIANT_NAMES,
 440         enum_variants::STUTTER,
 441         if_not_else::IF_NOT_ELSE,
 442         infinite_iter::MAYBE_INFINITE_ITER,
 443         items_after_statements::ITEMS_AFTER_STATEMENTS,
 444         matches::SINGLE_MATCH_ELSE,
 445         methods::FILTER_MAP,
 446         methods::OPTION_MAP_UNWRAP_OR,
 447         methods::OPTION_MAP_UNWRAP_OR_ELSE,
 448         methods::RESULT_MAP_UNWRAP_OR_ELSE,
 449         misc::USED_UNDERSCORE_BINDING,
 450         misc_early::UNSEPARATED_LITERAL_SUFFIX,
 451         mut_mut::MUT_MUT,
 452         needless_continue::NEEDLESS_CONTINUE,
 453         non_expressive_names::SIMILAR_NAMES,
 454         replace_consts::REPLACE_CONSTS,
 455         strings::STRING_ADD_ASSIGN,
 456         types::CAST_POSSIBLE_TRUNCATION,
 457         types::CAST_POSSIBLE_WRAP,
 458         types::CAST_PRECISION_LOSS,
 459         types::CAST_SIGN_LOSS,
 460         types::INVALID_UPCAST_COMPARISONS,
 461         types::LINKEDLIST,
 462         unicode::NON_ASCII_LITERAL,
 463         unicode::UNICODE_NOT_NFC,
 464         use_self::USE_SELF,
 465     ]);
 466
 467     reg.register_lint_group("clippy_internal", vec![
 468         utils::internal_lints::CLIPPY_LINTS_INTERNAL,
 469         utils::internal_lints::LINT_WITHOUT_LINT_PASS,
 470     ]);
 471
 472     reg.register_lint_group("clippy", vec![
 473         approx_const::APPROX_CONSTANT,
 474         array_indexing::OUT_OF_BOUNDS_INDEXING,
 475         assign_ops::ASSIGN_OP_PATTERN,
 476         assign_ops::MISREFACTORED_ASSIGN_OP,
 477         attrs::DEPRECATED_SEMVER,
 478         attrs::USELESS_ATTRIBUTE,
 479         bit_mask::BAD_BIT_MASK,
 480         bit_mask::INEFFECTIVE_BIT_MASK,
 481         bit_mask::VERBOSE_BIT_MASK,
 482         blacklisted_name::BLACKLISTED_NAME,
 483         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 484         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 485         booleans::LOGIC_BUG,
 486         booleans::NONMINIMAL_BOOL,
 487         bytecount::NAIVE_BYTECOUNT,
 488         collapsible_if::COLLAPSIBLE_IF,
 489         const_static_lifetime::CONST_STATIC_LIFETIME,
 490         copies::IF_SAME_THEN_ELSE,
 491         copies::IFS_SAME_COND,
 492         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 493         derive::DERIVE_HASH_XOR_EQ,
 494         double_comparison::DOUBLE_COMPARISONS,
 495         double_parens::DOUBLE_PARENS,
 496         drop_forget_ref::DROP_COPY,
 497         drop_forget_ref::DROP_REF,
 498         drop_forget_ref::FORGET_COPY,
 499         drop_forget_ref::FORGET_REF,
 500         entry::MAP_ENTRY,
 501         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 502         enum_variants::ENUM_VARIANT_NAMES,
 503         enum_variants::MODULE_INCEPTION,
 504         eq_op::EQ_OP,
 505         eq_op::OP_REF,
 506         erasing_op::ERASING_OP,
 507         escape::BOXED_LOCAL,
 508         eta_reduction::REDUNDANT_CLOSURE,
 509         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 510         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 511         explicit_write::EXPLICIT_WRITE,
 512         format::USELESS_FORMAT,
 513         formatting::POSSIBLE_MISSING_COMMA,
 514         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 515         formatting::SUSPICIOUS_ELSE_FORMATTING,
 516         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 517         functions::TOO_MANY_ARGUMENTS,
 518         identity_conversion::IDENTITY_CONVERSION,
 519         identity_op::IDENTITY_OP,
 520         if_let_redundant_pattern_matching::IF_LET_REDUNDANT_PATTERN_MATCHING,
 521         infinite_iter::INFINITE_ITER,
 522         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 523         int_plus_one::INT_PLUS_ONE,
 524         invalid_ref::INVALID_REF,
 525         large_enum_variant::LARGE_ENUM_VARIANT,
 526         len_zero::LEN_WITHOUT_IS_EMPTY,
 527         len_zero::LEN_ZERO,
 528         let_if_seq::USELESS_LET_IF_SEQ,
 529         lifetimes::NEEDLESS_LIFETIMES,
 530         lifetimes::UNUSED_LIFETIMES,
 531         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 532         literal_representation::LARGE_DIGIT_GROUPS,
 533         literal_representation::UNREADABLE_LITERAL,
 534         loops::EMPTY_LOOP,
 535         loops::EXPLICIT_COUNTER_LOOP,
 536         loops::EXPLICIT_INTO_ITER_LOOP,
 537         loops::EXPLICIT_ITER_LOOP,
 538         loops::FOR_KV_MAP,
 539         loops::FOR_LOOP_OVER_OPTION,
 540         loops::FOR_LOOP_OVER_RESULT,
 541         loops::ITER_NEXT_LOOP,
 542         loops::MANUAL_MEMCPY,
 543         loops::MUT_RANGE_BOUND,
 544         loops::NEEDLESS_RANGE_LOOP,
 545         loops::NEVER_LOOP,
 546         loops::REVERSE_RANGE_LOOP,
 547         loops::UNUSED_COLLECT,
 548         loops::WHILE_IMMUTABLE_CONDITION,
 549         loops::WHILE_LET_LOOP,
 550         loops::WHILE_LET_ON_ITERATOR,
 551         map_clone::MAP_CLONE,
 552         matches::MATCH_AS_REF,
 553         matches::MATCH_BOOL,
 554         matches::MATCH_OVERLAPPING_ARM,
 555         matches::MATCH_REF_PATS,
 556         matches::MATCH_WILD_ERR_ARM,
 557         matches::SINGLE_MATCH,
 558         methods::CHARS_LAST_CMP,
 559         methods::CHARS_NEXT_CMP,
 560         methods::CLONE_DOUBLE_REF,
 561         methods::CLONE_ON_COPY,
 562         methods::FILTER_NEXT,
 563         methods::GET_UNWRAP,
 564         methods::ITER_CLONED_COLLECT,
 565         methods::ITER_NTH,
 566         methods::ITER_SKIP_NEXT,
 567         methods::NEW_RET_NO_SELF,
 568         methods::OK_EXPECT,
 569         methods::OPTION_MAP_OR_NONE,
 570         methods::OR_FUN_CALL,
 571         methods::SEARCH_IS_SOME,
 572         methods::SHOULD_IMPLEMENT_TRAIT,
 573         methods::SINGLE_CHAR_PATTERN,
 574         methods::STRING_EXTEND_CHARS,
 575         methods::TEMPORARY_CSTRING_AS_PTR,
 576         methods::UNNECESSARY_FOLD,
 577         methods::USELESS_ASREF,
 578         methods::WRONG_SELF_CONVENTION,
 579         minmax::MIN_MAX,
 580         misc::CMP_NAN,
 581         misc::CMP_OWNED,
 582         misc::FLOAT_CMP,
 583         misc::MODULO_ONE,
 584         misc::REDUNDANT_PATTERN,
 585         misc::SHORT_CIRCUIT_STATEMENT,
 586         misc::TOPLEVEL_REF_ARG,
 587         misc::ZERO_PTR,
 588         misc_early::BUILTIN_TYPE_SHADOW,
 589         misc_early::DOUBLE_NEG,
 590         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 591         misc_early::MIXED_CASE_HEX_LITERALS,
 592         misc_early::REDUNDANT_CLOSURE_CALL,
 593         misc_early::UNNEEDED_FIELD_PATTERN,
 594         misc_early::ZERO_PREFIXED_LITERAL,
 595         mut_reference::UNNECESSARY_MUT_PASSED,
 596         mutex_atomic::MUTEX_ATOMIC,
 597         needless_bool::BOOL_COMPARISON,
 598         needless_bool::NEEDLESS_BOOL,
 599         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 600         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 601         needless_update::NEEDLESS_UPDATE,
 602         neg_multiply::NEG_MULTIPLY,
 603         new_without_default::NEW_WITHOUT_DEFAULT,
 604         new_without_default::NEW_WITHOUT_DEFAULT_DERIVE,
 605         no_effect::NO_EFFECT,
 606         no_effect::UNNECESSARY_OPERATION,
 607         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 608         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 609         ok_if_let::IF_LET_SOME_RESULT,
 610         open_options::NONSENSICAL_OPEN_OPTIONS,
 611         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 612         panic::PANIC_PARAMS,
 613         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 614         precedence::PRECEDENCE,
 615         write::PRINT_LITERAL,
 616         write::PRINT_WITH_NEWLINE,
 617         write::PRINTLN_EMPTY_STRING,
 618         ptr::CMP_NULL,
 619         ptr::MUT_FROM_REF,
 620         ptr::PTR_ARG,
 621         question_mark::QUESTION_MARK,
 622         ranges::ITERATOR_STEP_BY_ZERO,
 623         ranges::RANGE_MINUS_ONE,
 624         ranges::RANGE_ZIP_WITH_LEN,
 625         redundant_field_names::REDUNDANT_FIELD_NAMES,
 626         reference::DEREF_ADDROF,
 627         regex::INVALID_REGEX,
 628         regex::REGEX_MACRO,
 629         regex::TRIVIAL_REGEX,
 630         returns::LET_AND_RETURN,
 631         returns::NEEDLESS_RETURN,
 632         serde_api::SERDE_API_MISUSE,
 633         strings::STRING_LIT_AS_BYTES,
 634         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 635         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 636         swap::ALMOST_SWAPPED,
 637         swap::MANUAL_SWAP,
 638         temporary_assignment::TEMPORARY_ASSIGNMENT,
 639         transmute::CROSSPOINTER_TRANSMUTE,
 640         transmute::TRANSMUTE_BYTES_TO_STR,
 641         transmute::TRANSMUTE_INT_TO_BOOL,
 642         transmute::TRANSMUTE_INT_TO_CHAR,
 643         transmute::TRANSMUTE_INT_TO_FLOAT,
 644         transmute::TRANSMUTE_PTR_TO_REF,
 645         transmute::TRANSMUTE_PTR_TO_PTR,
 646         transmute::USELESS_TRANSMUTE,
 647         transmute::WRONG_TRANSMUTE,
 648         types::ABSURD_EXTREME_COMPARISONS,
 649         types::BORROWED_BOX,
 650         types::BOX_VEC,
 651         types::CAST_LOSSLESS,
 652         types::CAST_PTR_ALIGNMENT,
 653         types::CHAR_LIT_AS_U8,
 654         types::IMPLICIT_HASHER,
 655         types::LET_UNIT_VALUE,
 656         types::OPTION_OPTION,
 657         types::TYPE_COMPLEXITY,
 658         types::UNIT_ARG,
 659         types::UNIT_CMP,
 660         types::UNNECESSARY_CAST,
 661         unicode::ZERO_WIDTH_SPACE,
 662         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 663         unused_io_amount::UNUSED_IO_AMOUNT,
 664         unused_label::UNUSED_LABEL,
 665         vec::USELESS_VEC,
 666         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 667     ]);
 668
 669     reg.register_lint_group("clippy_style", vec![
 670         assign_ops::ASSIGN_OP_PATTERN,
 671         bit_mask::VERBOSE_BIT_MASK,
 672         blacklisted_name::BLACKLISTED_NAME,
 673         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 674         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 675         collapsible_if::COLLAPSIBLE_IF,
 676         const_static_lifetime::CONST_STATIC_LIFETIME,
 677         enum_variants::ENUM_VARIANT_NAMES,
 678         enum_variants::MODULE_INCEPTION,
 679         eq_op::OP_REF,
 680         eta_reduction::REDUNDANT_CLOSURE,
 681         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 682         formatting::SUSPICIOUS_ELSE_FORMATTING,
 683         if_let_redundant_pattern_matching::IF_LET_REDUNDANT_PATTERN_MATCHING,
 684         len_zero::LEN_WITHOUT_IS_EMPTY,
 685         len_zero::LEN_ZERO,
 686         let_if_seq::USELESS_LET_IF_SEQ,
 687         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 688         literal_representation::LARGE_DIGIT_GROUPS,
 689         literal_representation::UNREADABLE_LITERAL,
 690         loops::EMPTY_LOOP,
 691         loops::EXPLICIT_INTO_ITER_LOOP,
 692         loops::EXPLICIT_ITER_LOOP,
 693         loops::FOR_KV_MAP,
 694         loops::NEEDLESS_RANGE_LOOP,
 695         loops::WHILE_LET_ON_ITERATOR,
 696         map_clone::MAP_CLONE,
 697         matches::MATCH_BOOL,
 698         matches::MATCH_OVERLAPPING_ARM,
 699         matches::MATCH_REF_PATS,
 700         matches::MATCH_WILD_ERR_ARM,
 701         matches::SINGLE_MATCH,
 702         methods::CHARS_LAST_CMP,
 703         methods::GET_UNWRAP,
 704         methods::ITER_CLONED_COLLECT,
 705         methods::ITER_SKIP_NEXT,
 706         methods::NEW_RET_NO_SELF,
 707         methods::OK_EXPECT,
 708         methods::OPTION_MAP_OR_NONE,
 709         methods::SHOULD_IMPLEMENT_TRAIT,
 710         methods::STRING_EXTEND_CHARS,
 711         methods::UNNECESSARY_FOLD,
 712         methods::WRONG_SELF_CONVENTION,
 713         misc::REDUNDANT_PATTERN,
 714         misc::TOPLEVEL_REF_ARG,
 715         misc::ZERO_PTR,
 716         misc_early::BUILTIN_TYPE_SHADOW,
 717         misc_early::DOUBLE_NEG,
 718         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 719         misc_early::MIXED_CASE_HEX_LITERALS,
 720         misc_early::UNNEEDED_FIELD_PATTERN,
 721         mut_reference::UNNECESSARY_MUT_PASSED,
 722         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 723         neg_multiply::NEG_MULTIPLY,
 724         new_without_default::NEW_WITHOUT_DEFAULT,
 725         new_without_default::NEW_WITHOUT_DEFAULT_DERIVE,
 726         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 727         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 728         ok_if_let::IF_LET_SOME_RESULT,
 729         panic::PANIC_PARAMS,
 730         write::PRINT_LITERAL,
 731         write::PRINT_WITH_NEWLINE,
 732         write::PRINTLN_EMPTY_STRING,
 733         ptr::CMP_NULL,
 734         ptr::PTR_ARG,
 735         question_mark::QUESTION_MARK,
 736         ranges::RANGE_MINUS_ONE,
 737         redundant_field_names::REDUNDANT_FIELD_NAMES,
 738         regex::REGEX_MACRO,
 739         regex::TRIVIAL_REGEX,
 740         returns::LET_AND_RETURN,
 741         returns::NEEDLESS_RETURN,
 742         strings::STRING_LIT_AS_BYTES,
 743         types::IMPLICIT_HASHER,
 744         types::LET_UNIT_VALUE,
 745         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 746     ]);
 747
 748     reg.register_lint_group("clippy_complexity", vec![
 749         assign_ops::MISREFACTORED_ASSIGN_OP,
 750         booleans::NONMINIMAL_BOOL,
 751         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 752         double_comparison::DOUBLE_COMPARISONS,
 753         double_parens::DOUBLE_PARENS,
 754         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 755         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 756         explicit_write::EXPLICIT_WRITE,
 757         format::USELESS_FORMAT,
 758         functions::TOO_MANY_ARGUMENTS,
 759         identity_conversion::IDENTITY_CONVERSION,
 760         identity_op::IDENTITY_OP,
 761         int_plus_one::INT_PLUS_ONE,
 762         lifetimes::NEEDLESS_LIFETIMES,
 763         lifetimes::UNUSED_LIFETIMES,
 764         loops::EXPLICIT_COUNTER_LOOP,
 765         loops::MUT_RANGE_BOUND,
 766         loops::WHILE_LET_LOOP,
 767         matches::MATCH_AS_REF,
 768         methods::CHARS_NEXT_CMP,
 769         methods::CLONE_ON_COPY,
 770         methods::FILTER_NEXT,
 771         methods::SEARCH_IS_SOME,
 772         methods::USELESS_ASREF,
 773         misc::SHORT_CIRCUIT_STATEMENT,
 774         misc_early::REDUNDANT_CLOSURE_CALL,
 775         misc_early::ZERO_PREFIXED_LITERAL,
 776         needless_bool::BOOL_COMPARISON,
 777         needless_bool::NEEDLESS_BOOL,
 778         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 779         needless_update::NEEDLESS_UPDATE,
 780         no_effect::NO_EFFECT,
 781         no_effect::UNNECESSARY_OPERATION,
 782         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 783         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 784         precedence::PRECEDENCE,
 785         ranges::RANGE_ZIP_WITH_LEN,
 786         reference::DEREF_ADDROF,
 787         swap::MANUAL_SWAP,
 788         temporary_assignment::TEMPORARY_ASSIGNMENT,
 789         transmute::CROSSPOINTER_TRANSMUTE,
 790         transmute::TRANSMUTE_BYTES_TO_STR,
 791         transmute::TRANSMUTE_INT_TO_BOOL,
 792         transmute::TRANSMUTE_INT_TO_CHAR,
 793         transmute::TRANSMUTE_INT_TO_FLOAT,
 794         transmute::TRANSMUTE_PTR_TO_REF,
 795         transmute::TRANSMUTE_PTR_TO_PTR,
 796         transmute::USELESS_TRANSMUTE,
 797         types::BORROWED_BOX,
 798         types::CAST_LOSSLESS,
 799         types::CHAR_LIT_AS_U8,
 800         types::OPTION_OPTION,
 801         types::TYPE_COMPLEXITY,
 802         types::UNIT_ARG,
 803         types::UNNECESSARY_CAST,
 804         unused_label::UNUSED_LABEL,
 805         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 806     ]);
 807
 808     reg.register_lint_group("clippy_correctness", vec![
 809         approx_const::APPROX_CONSTANT,
 810         array_indexing::OUT_OF_BOUNDS_INDEXING,
 811         attrs::DEPRECATED_SEMVER,
 812         attrs::USELESS_ATTRIBUTE,
 813         bit_mask::BAD_BIT_MASK,
 814         bit_mask::INEFFECTIVE_BIT_MASK,
 815         booleans::LOGIC_BUG,
 816         copies::IF_SAME_THEN_ELSE,
 817         copies::IFS_SAME_COND,
 818         derive::DERIVE_HASH_XOR_EQ,
 819         drop_forget_ref::DROP_COPY,
 820         drop_forget_ref::DROP_REF,
 821         drop_forget_ref::FORGET_COPY,
 822         drop_forget_ref::FORGET_REF,
 823         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 824         eq_op::EQ_OP,
 825         erasing_op::ERASING_OP,
 826         formatting::POSSIBLE_MISSING_COMMA,
 827         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 828         infinite_iter::INFINITE_ITER,
 829         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 830         invalid_ref::INVALID_REF,
 831         loops::FOR_LOOP_OVER_OPTION,
 832         loops::FOR_LOOP_OVER_RESULT,
 833         loops::ITER_NEXT_LOOP,
 834         loops::NEVER_LOOP,
 835         loops::REVERSE_RANGE_LOOP,
 836         loops::WHILE_IMMUTABLE_CONDITION,
 837         methods::CLONE_DOUBLE_REF,
 838         methods::TEMPORARY_CSTRING_AS_PTR,
 839         minmax::MIN_MAX,
 840         misc::CMP_NAN,
 841         misc::FLOAT_CMP,
 842         misc::MODULO_ONE,
 843         open_options::NONSENSICAL_OPEN_OPTIONS,
 844         ptr::MUT_FROM_REF,
 845         ranges::ITERATOR_STEP_BY_ZERO,
 846         regex::INVALID_REGEX,
 847         serde_api::SERDE_API_MISUSE,
 848         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 849         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 850         swap::ALMOST_SWAPPED,
 851         transmute::WRONG_TRANSMUTE,
 852         types::ABSURD_EXTREME_COMPARISONS,
 853         types::CAST_PTR_ALIGNMENT,
 854         types::UNIT_CMP,
 855         unicode::ZERO_WIDTH_SPACE,
 856         unused_io_amount::UNUSED_IO_AMOUNT,
 857     ]);
 858
 859     reg.register_lint_group("clippy_perf", vec![
 860         bytecount::NAIVE_BYTECOUNT,
 861         entry::MAP_ENTRY,
 862         escape::BOXED_LOCAL,
 863         large_enum_variant::LARGE_ENUM_VARIANT,
 864         loops::MANUAL_MEMCPY,
 865         loops::UNUSED_COLLECT,
 866         methods::ITER_NTH,
 867         methods::OR_FUN_CALL,
 868         methods::SINGLE_CHAR_PATTERN,
 869         misc::CMP_OWNED,
 870         mutex_atomic::MUTEX_ATOMIC,
 871         types::BOX_VEC,
 872         vec::USELESS_VEC,
 873     ]);
 874
 875     reg.register_lint_group("clippy_nursery", vec![
 876         attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
 877         fallible_impl_from::FALLIBLE_IMPL_FROM,
 878         mutex_atomic::MUTEX_INTEGER,
 879         needless_borrow::NEEDLESS_BORROW,
 880         ranges::RANGE_PLUS_ONE,
 881     ]);
 882 }
 883
 884 // only exists to let the dogfood integration test works.
 885 // Don't run clippy as an executable directly
 886 #[allow(dead_code, print_stdout)]
 887 fn main() {
 888     panic!("Please use the cargo-clippy executable");
 889 }