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 map_unit_fn;
 149 pub mod matches;
 150 pub mod mem_forget;
 151 pub mod methods;
 152 pub mod minmax;
 153 pub mod misc;
 154 pub mod misc_early;
 155 pub mod missing_doc;
 156 pub mod mut_mut;
 157 pub mod mut_reference;
 158 pub mod mutex_atomic;
 159 pub mod needless_bool;
 160 pub mod needless_borrow;
 161 pub mod needless_borrowed_ref;
 162 pub mod needless_continue;
 163 pub mod needless_pass_by_value;
 164 pub mod needless_update;
 165 pub mod neg_multiply;
 166 pub mod new_without_default;
 167 pub mod no_effect;
 168 pub mod non_expressive_names;
 169 pub mod ok_if_let;
 170 pub mod open_options;
 171 pub mod overflow_check_conditional;
 172 pub mod panic;
 173 pub mod partialeq_ne_impl;
 174 pub mod precedence;
 175 pub mod ptr;
 176 pub mod question_mark;
 177 pub mod ranges;
 178 pub mod redundant_field_names;
 179 pub mod reference;
 180 pub mod regex;
 181 pub mod replace_consts;
 182 pub mod returns;
 183 pub mod serde_api;
 184 pub mod shadow;
 185 pub mod strings;
 186 pub mod suspicious_trait_impl;
 187 pub mod swap;
 188 pub mod temporary_assignment;
 189 pub mod transmute;
 190 pub mod types;
 191 pub mod unicode;
 192 pub mod unsafe_removed_from_name;
 193 pub mod unused_io_amount;
 194 pub mod unused_label;
 195 pub mod use_self;
 196 pub mod vec;
 197 pub mod write;
 198 pub mod zero_div_zero;
 199 // end lints modules, do not remove this comment, it’s used in `update_lints`
 200
 201 mod reexport {
 202     pub use syntax::ast::{Name, NodeId};
 203 }
 204
 205 #[cfg_attr(rustfmt, rustfmt_skip)]
 206 pub fn register_plugins(reg: &mut rustc_plugin::Registry) {
 207     let conf = match utils::conf::file_from_args(reg.args()) {
 208         Ok(file_name) => {
 209             // if the user specified a file, it must exist, otherwise default to `clippy.toml` but
 210             // do not require the file to exist
 211             let file_name = if let Some(file_name) = file_name {
 212                 Some(file_name)
 213             } else {
 214                 match utils::conf::lookup_conf_file() {
 215                     Ok(path) => path,
 216                     Err(error) => {
 217                         reg.sess.struct_err(&format!("error finding Clippy's configuration file: {}", error)).emit();
 218                         None
 219                     }
 220                 }
 221             };
 222
 223             let file_name = file_name.map(|file_name| if file_name.is_relative() {
 224                 reg.sess
 225                     .local_crate_source_file
 226                     .as_ref()
 227                     .and_then(|file| std::path::Path::new(&file).parent().map(std::path::Path::to_path_buf))
 228                     .unwrap_or_default()
 229                     .join(file_name)
 230             } else {
 231                 file_name
 232             });
 233
 234             let (conf, errors) = utils::conf::read(file_name.as_ref().map(|p| p.as_ref()));
 235
 236             // all conf errors are non-fatal, we just use the default conf in case of error
 237             for error in errors {
 238                 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();
 239             }
 240
 241             conf
 242         }
 243         Err((err, span)) => {
 244             reg.sess.struct_span_err(span, err)
 245                     .span_note(span, "Clippy will use default configuration")
 246                     .emit();
 247             toml::from_str("").expect("we never error on empty config files")
 248         }
 249     };
 250
 251     let mut store = reg.sess.lint_store.borrow_mut();
 252     store.register_removed(
 253         "should_assert_eq",
 254         "`assert!()` will be more flexible with RFC 2011",
 255     );
 256     store.register_removed(
 257         "extend_from_slice",
 258         "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice",
 259     );
 260     store.register_removed(
 261         "range_step_by_zero",
 262         "`iterator.step_by(0)` panics nowadays",
 263     );
 264     store.register_removed(
 265         "unstable_as_slice",
 266         "`Vec::as_slice` has been stabilized in 1.7",
 267     );
 268     store.register_removed(
 269         "unstable_as_mut_slice",
 270         "`Vec::as_mut_slice` has been stabilized in 1.7",
 271     );
 272     store.register_removed(
 273         "str_to_string",
 274         "using `str::to_string` is common even today and specialization will likely happen soon",
 275     );
 276     store.register_removed(
 277         "string_to_string",
 278         "using `string::to_string` is common even today and specialization will likely happen soon",
 279     );
 280     store.register_removed(
 281         "misaligned_transmute",
 282         "this lint has been split into cast_ptr_alignment and transmute_ptr_to_ptr",
 283     );
 284     // end deprecated lints, do not remove this comment, it’s used in `update_lints`
 285
 286     reg.register_late_lint_pass(box serde_api::Serde);
 287     reg.register_early_lint_pass(box utils::internal_lints::Clippy);
 288     reg.register_late_lint_pass(box utils::internal_lints::LintWithoutLintPass::default());
 289     reg.register_late_lint_pass(box utils::inspector::Pass);
 290     reg.register_late_lint_pass(box utils::author::Pass);
 291     reg.register_late_lint_pass(box types::TypePass);
 292     reg.register_late_lint_pass(box booleans::NonminimalBool);
 293     reg.register_late_lint_pass(box eq_op::EqOp);
 294     reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold));
 295     reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse);
 296     reg.register_late_lint_pass(box enum_clike::UnportableVariant);
 297     reg.register_late_lint_pass(box bit_mask::BitMask::new(conf.verbose_bit_mask_threshold));
 298     reg.register_late_lint_pass(box ptr::PointerPass);
 299     reg.register_late_lint_pass(box needless_bool::NeedlessBool);
 300     reg.register_late_lint_pass(box needless_bool::BoolComparison);
 301     reg.register_late_lint_pass(box approx_const::Pass);
 302     reg.register_late_lint_pass(box misc::Pass);
 303     reg.register_early_lint_pass(box precedence::Precedence);
 304     reg.register_early_lint_pass(box needless_continue::NeedlessContinue);
 305     reg.register_late_lint_pass(box eta_reduction::EtaPass);
 306     reg.register_late_lint_pass(box identity_op::IdentityOp);
 307     reg.register_late_lint_pass(box erasing_op::ErasingOp);
 308     reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatements);
 309     reg.register_late_lint_pass(box mut_mut::MutMut);
 310     reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed);
 311     reg.register_late_lint_pass(box len_zero::LenZero);
 312     reg.register_late_lint_pass(box attrs::AttrPass);
 313     reg.register_early_lint_pass(box collapsible_if::CollapsibleIf);
 314     reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition);
 315     reg.register_late_lint_pass(box unicode::Unicode);
 316     reg.register_late_lint_pass(box strings::StringAdd);
 317     reg.register_early_lint_pass(box returns::ReturnPass);
 318     reg.register_late_lint_pass(box methods::Pass);
 319     reg.register_late_lint_pass(box shadow::Pass);
 320     reg.register_late_lint_pass(box types::LetPass);
 321     reg.register_late_lint_pass(box types::UnitCmp);
 322     reg.register_late_lint_pass(box loops::Pass);
 323     reg.register_late_lint_pass(box lifetimes::LifetimePass);
 324     reg.register_late_lint_pass(box entry::HashMapLint);
 325     reg.register_late_lint_pass(box ranges::Pass);
 326     reg.register_late_lint_pass(box types::CastPass);
 327     reg.register_late_lint_pass(box types::TypeComplexityPass::new(conf.type_complexity_threshold));
 328     reg.register_late_lint_pass(box matches::MatchPass);
 329     reg.register_late_lint_pass(box minmax::MinMaxPass);
 330     reg.register_late_lint_pass(box open_options::NonSensical);
 331     reg.register_late_lint_pass(box zero_div_zero::Pass);
 332     reg.register_late_lint_pass(box mutex_atomic::MutexAtomic);
 333     reg.register_late_lint_pass(box needless_update::Pass);
 334     reg.register_late_lint_pass(box needless_borrow::NeedlessBorrow);
 335     reg.register_late_lint_pass(box needless_borrowed_ref::NeedlessBorrowedRef);
 336     reg.register_late_lint_pass(box no_effect::Pass);
 337     reg.register_late_lint_pass(box map_clone::Pass);
 338     reg.register_late_lint_pass(box temporary_assignment::Pass);
 339     reg.register_late_lint_pass(box transmute::Transmute);
 340     reg.register_late_lint_pass(
 341         box cyclomatic_complexity::CyclomaticComplexity::new(conf.cyclomatic_complexity_threshold)
 342     );
 343     reg.register_late_lint_pass(box escape::Pass{too_large_for_stack: conf.too_large_for_stack});
 344     reg.register_early_lint_pass(box misc_early::MiscEarly);
 345     reg.register_late_lint_pass(box array_indexing::ArrayIndexing);
 346     reg.register_late_lint_pass(box panic::Pass);
 347     reg.register_late_lint_pass(box strings::StringLitAsBytes);
 348     reg.register_late_lint_pass(box derive::Derive);
 349     reg.register_late_lint_pass(box types::CharLitAsU8);
 350     reg.register_late_lint_pass(box write::Pass);
 351     reg.register_late_lint_pass(box vec::Pass);
 352     reg.register_early_lint_pass(box non_expressive_names::NonExpressiveNames {
 353         single_char_binding_names_threshold: conf.single_char_binding_names_threshold,
 354     });
 355     reg.register_late_lint_pass(box drop_forget_ref::Pass);
 356     reg.register_late_lint_pass(box empty_enum::EmptyEnum);
 357     reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);
 358     reg.register_late_lint_pass(box types::InvalidUpcastComparisons);
 359     reg.register_late_lint_pass(box regex::Pass::default());
 360     reg.register_late_lint_pass(box copies::CopyAndPaste);
 361     reg.register_late_lint_pass(box format::Pass);
 362     reg.register_early_lint_pass(box formatting::Formatting);
 363     reg.register_late_lint_pass(box swap::Swap);
 364     reg.register_early_lint_pass(box if_not_else::IfNotElse);
 365     reg.register_early_lint_pass(box else_if_without_else::ElseIfWithoutElse);
 366     reg.register_early_lint_pass(box int_plus_one::IntPlusOne);
 367     reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional);
 368     reg.register_late_lint_pass(box unused_label::UnusedLabel);
 369     reg.register_late_lint_pass(box new_without_default::NewWithoutDefault);
 370     reg.register_late_lint_pass(box blacklisted_name::BlackListedName::new(conf.blacklisted_names));
 371     reg.register_late_lint_pass(box functions::Functions::new(conf.too_many_arguments_threshold));
 372     reg.register_early_lint_pass(box doc::Doc::new(conf.doc_valid_idents));
 373     reg.register_late_lint_pass(box neg_multiply::NegMultiply);
 374     reg.register_early_lint_pass(box unsafe_removed_from_name::UnsafeNameRemoval);
 375     reg.register_late_lint_pass(box mem_forget::MemForget);
 376     reg.register_late_lint_pass(box arithmetic::Arithmetic::default());
 377     reg.register_late_lint_pass(box assign_ops::AssignOps);
 378     reg.register_late_lint_pass(box let_if_seq::LetIfSeq);
 379     reg.register_late_lint_pass(box eval_order_dependence::EvalOrderDependence);
 380     reg.register_late_lint_pass(box missing_doc::MissingDoc::new());
 381     reg.register_late_lint_pass(box ok_if_let::Pass);
 382     reg.register_late_lint_pass(box if_let_redundant_pattern_matching::Pass);
 383     reg.register_late_lint_pass(box partialeq_ne_impl::Pass);
 384     reg.register_early_lint_pass(box reference::Pass);
 385     reg.register_early_lint_pass(box double_parens::DoubleParens);
 386     reg.register_late_lint_pass(box unused_io_amount::UnusedIoAmount);
 387     reg.register_late_lint_pass(box large_enum_variant::LargeEnumVariant::new(conf.enum_variant_size_threshold));
 388     reg.register_late_lint_pass(box explicit_write::Pass);
 389     reg.register_late_lint_pass(box needless_pass_by_value::NeedlessPassByValue);
 390     reg.register_early_lint_pass(box literal_representation::LiteralDigitGrouping);
 391     reg.register_early_lint_pass(box literal_representation::LiteralRepresentation::new(
 392             conf.literal_representation_threshold
 393     ));
 394     reg.register_late_lint_pass(box use_self::UseSelf);
 395     reg.register_late_lint_pass(box bytecount::ByteCount);
 396     reg.register_late_lint_pass(box infinite_iter::Pass);
 397     reg.register_late_lint_pass(box inline_fn_without_body::Pass);
 398     reg.register_late_lint_pass(box invalid_ref::InvalidRef);
 399     reg.register_late_lint_pass(box identity_conversion::IdentityConversion::default());
 400     reg.register_late_lint_pass(box types::ImplicitHasher);
 401     reg.register_early_lint_pass(box const_static_lifetime::StaticConst);
 402     reg.register_late_lint_pass(box fallible_impl_from::FallibleImplFrom);
 403     reg.register_late_lint_pass(box replace_consts::ReplaceConsts);
 404     reg.register_late_lint_pass(box types::UnitArg);
 405     reg.register_late_lint_pass(box double_comparison::DoubleComparisonPass);
 406     reg.register_late_lint_pass(box question_mark::QuestionMarkPass);
 407     reg.register_late_lint_pass(box suspicious_trait_impl::SuspiciousImpl);
 408     reg.register_late_lint_pass(box redundant_field_names::RedundantFieldNames);
 409     reg.register_late_lint_pass(box map_unit_fn::Pass);
 410
 411
 412     reg.register_lint_group("clippy_restriction", vec![
 413         arithmetic::FLOAT_ARITHMETIC,
 414         arithmetic::INTEGER_ARITHMETIC,
 415         array_indexing::INDEXING_SLICING,
 416         assign_ops::ASSIGN_OPS,
 417         else_if_without_else::ELSE_IF_WITHOUT_ELSE,
 418         literal_representation::DECIMAL_LITERAL_REPRESENTATION,
 419         mem_forget::MEM_FORGET,
 420         methods::CLONE_ON_REF_PTR,
 421         methods::OPTION_UNWRAP_USED,
 422         methods::RESULT_UNWRAP_USED,
 423         methods::WRONG_PUB_SELF_CONVENTION,
 424         misc::FLOAT_CMP_CONST,
 425         missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS,
 426         shadow::SHADOW_REUSE,
 427         shadow::SHADOW_SAME,
 428         shadow::SHADOW_UNRELATED,
 429         strings::STRING_ADD,
 430         write::PRINT_STDOUT,
 431         write::USE_DEBUG,
 432     ]);
 433
 434     reg.register_lint_group("clippy_pedantic", vec![
 435         attrs::INLINE_ALWAYS,
 436         copies::MATCH_SAME_ARMS,
 437         derive::EXPL_IMPL_CLONE_ON_COPY,
 438         doc::DOC_MARKDOWN,
 439         empty_enum::EMPTY_ENUM,
 440         enum_glob_use::ENUM_GLOB_USE,
 441         enum_variants::PUB_ENUM_VARIANT_NAMES,
 442         enum_variants::STUTTER,
 443         if_not_else::IF_NOT_ELSE,
 444         infinite_iter::MAYBE_INFINITE_ITER,
 445         items_after_statements::ITEMS_AFTER_STATEMENTS,
 446         map_unit_fn::OPTION_MAP_UNIT_FN,
 447         map_unit_fn::RESULT_MAP_UNIT_FN,
 448         matches::SINGLE_MATCH_ELSE,
 449         methods::FILTER_MAP,
 450         methods::OPTION_MAP_UNWRAP_OR,
 451         methods::OPTION_MAP_UNWRAP_OR_ELSE,
 452         methods::RESULT_MAP_UNWRAP_OR_ELSE,
 453         misc::USED_UNDERSCORE_BINDING,
 454         misc_early::UNSEPARATED_LITERAL_SUFFIX,
 455         mut_mut::MUT_MUT,
 456         needless_continue::NEEDLESS_CONTINUE,
 457         non_expressive_names::SIMILAR_NAMES,
 458         replace_consts::REPLACE_CONSTS,
 459         strings::STRING_ADD_ASSIGN,
 460         types::CAST_POSSIBLE_TRUNCATION,
 461         types::CAST_POSSIBLE_WRAP,
 462         types::CAST_PRECISION_LOSS,
 463         types::CAST_SIGN_LOSS,
 464         types::INVALID_UPCAST_COMPARISONS,
 465         types::LINKEDLIST,
 466         unicode::NON_ASCII_LITERAL,
 467         unicode::UNICODE_NOT_NFC,
 468         use_self::USE_SELF,
 469     ]);
 470
 471     reg.register_lint_group("clippy_internal", vec![
 472         utils::internal_lints::CLIPPY_LINTS_INTERNAL,
 473         utils::internal_lints::LINT_WITHOUT_LINT_PASS,
 474     ]);
 475
 476     reg.register_lint_group("clippy", vec![
 477         approx_const::APPROX_CONSTANT,
 478         array_indexing::OUT_OF_BOUNDS_INDEXING,
 479         assign_ops::ASSIGN_OP_PATTERN,
 480         assign_ops::MISREFACTORED_ASSIGN_OP,
 481         attrs::DEPRECATED_SEMVER,
 482         attrs::USELESS_ATTRIBUTE,
 483         bit_mask::BAD_BIT_MASK,
 484         bit_mask::INEFFECTIVE_BIT_MASK,
 485         bit_mask::VERBOSE_BIT_MASK,
 486         blacklisted_name::BLACKLISTED_NAME,
 487         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 488         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 489         booleans::LOGIC_BUG,
 490         booleans::NONMINIMAL_BOOL,
 491         bytecount::NAIVE_BYTECOUNT,
 492         collapsible_if::COLLAPSIBLE_IF,
 493         const_static_lifetime::CONST_STATIC_LIFETIME,
 494         copies::IF_SAME_THEN_ELSE,
 495         copies::IFS_SAME_COND,
 496         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 497         derive::DERIVE_HASH_XOR_EQ,
 498         double_comparison::DOUBLE_COMPARISONS,
 499         double_parens::DOUBLE_PARENS,
 500         drop_forget_ref::DROP_COPY,
 501         drop_forget_ref::DROP_REF,
 502         drop_forget_ref::FORGET_COPY,
 503         drop_forget_ref::FORGET_REF,
 504         entry::MAP_ENTRY,
 505         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 506         enum_variants::ENUM_VARIANT_NAMES,
 507         enum_variants::MODULE_INCEPTION,
 508         eq_op::EQ_OP,
 509         eq_op::OP_REF,
 510         erasing_op::ERASING_OP,
 511         escape::BOXED_LOCAL,
 512         eta_reduction::REDUNDANT_CLOSURE,
 513         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 514         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 515         explicit_write::EXPLICIT_WRITE,
 516         format::USELESS_FORMAT,
 517         formatting::POSSIBLE_MISSING_COMMA,
 518         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 519         formatting::SUSPICIOUS_ELSE_FORMATTING,
 520         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 521         functions::TOO_MANY_ARGUMENTS,
 522         identity_conversion::IDENTITY_CONVERSION,
 523         identity_op::IDENTITY_OP,
 524         if_let_redundant_pattern_matching::IF_LET_REDUNDANT_PATTERN_MATCHING,
 525         infinite_iter::INFINITE_ITER,
 526         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 527         int_plus_one::INT_PLUS_ONE,
 528         invalid_ref::INVALID_REF,
 529         large_enum_variant::LARGE_ENUM_VARIANT,
 530         len_zero::LEN_WITHOUT_IS_EMPTY,
 531         len_zero::LEN_ZERO,
 532         let_if_seq::USELESS_LET_IF_SEQ,
 533         lifetimes::NEEDLESS_LIFETIMES,
 534         lifetimes::UNUSED_LIFETIMES,
 535         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 536         literal_representation::LARGE_DIGIT_GROUPS,
 537         literal_representation::UNREADABLE_LITERAL,
 538         loops::EMPTY_LOOP,
 539         loops::EXPLICIT_COUNTER_LOOP,
 540         loops::EXPLICIT_INTO_ITER_LOOP,
 541         loops::EXPLICIT_ITER_LOOP,
 542         loops::FOR_KV_MAP,
 543         loops::FOR_LOOP_OVER_OPTION,
 544         loops::FOR_LOOP_OVER_RESULT,
 545         loops::ITER_NEXT_LOOP,
 546         loops::MANUAL_MEMCPY,
 547         loops::MUT_RANGE_BOUND,
 548         loops::NEEDLESS_RANGE_LOOP,
 549         loops::NEVER_LOOP,
 550         loops::REVERSE_RANGE_LOOP,
 551         loops::UNUSED_COLLECT,
 552         loops::WHILE_IMMUTABLE_CONDITION,
 553         loops::WHILE_LET_LOOP,
 554         loops::WHILE_LET_ON_ITERATOR,
 555         map_clone::MAP_CLONE,
 556         matches::MATCH_AS_REF,
 557         matches::MATCH_BOOL,
 558         matches::MATCH_OVERLAPPING_ARM,
 559         matches::MATCH_REF_PATS,
 560         matches::MATCH_WILD_ERR_ARM,
 561         matches::SINGLE_MATCH,
 562         methods::CHARS_LAST_CMP,
 563         methods::CHARS_NEXT_CMP,
 564         methods::CLONE_DOUBLE_REF,
 565         methods::CLONE_ON_COPY,
 566         methods::FILTER_NEXT,
 567         methods::GET_UNWRAP,
 568         methods::ITER_CLONED_COLLECT,
 569         methods::ITER_NTH,
 570         methods::ITER_SKIP_NEXT,
 571         methods::NEW_RET_NO_SELF,
 572         methods::OK_EXPECT,
 573         methods::OPTION_MAP_OR_NONE,
 574         methods::OR_FUN_CALL,
 575         methods::SEARCH_IS_SOME,
 576         methods::SHOULD_IMPLEMENT_TRAIT,
 577         methods::SINGLE_CHAR_PATTERN,
 578         methods::STRING_EXTEND_CHARS,
 579         methods::TEMPORARY_CSTRING_AS_PTR,
 580         methods::UNNECESSARY_FOLD,
 581         methods::USELESS_ASREF,
 582         methods::WRONG_SELF_CONVENTION,
 583         minmax::MIN_MAX,
 584         misc::CMP_NAN,
 585         misc::CMP_OWNED,
 586         misc::FLOAT_CMP,
 587         misc::MODULO_ONE,
 588         misc::REDUNDANT_PATTERN,
 589         misc::SHORT_CIRCUIT_STATEMENT,
 590         misc::TOPLEVEL_REF_ARG,
 591         misc::ZERO_PTR,
 592         misc_early::BUILTIN_TYPE_SHADOW,
 593         misc_early::DOUBLE_NEG,
 594         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 595         misc_early::MIXED_CASE_HEX_LITERALS,
 596         misc_early::REDUNDANT_CLOSURE_CALL,
 597         misc_early::UNNEEDED_FIELD_PATTERN,
 598         misc_early::ZERO_PREFIXED_LITERAL,
 599         mut_reference::UNNECESSARY_MUT_PASSED,
 600         mutex_atomic::MUTEX_ATOMIC,
 601         needless_bool::BOOL_COMPARISON,
 602         needless_bool::NEEDLESS_BOOL,
 603         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 604         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 605         needless_update::NEEDLESS_UPDATE,
 606         neg_multiply::NEG_MULTIPLY,
 607         new_without_default::NEW_WITHOUT_DEFAULT,
 608         new_without_default::NEW_WITHOUT_DEFAULT_DERIVE,
 609         no_effect::NO_EFFECT,
 610         no_effect::UNNECESSARY_OPERATION,
 611         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 612         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 613         ok_if_let::IF_LET_SOME_RESULT,
 614         open_options::NONSENSICAL_OPEN_OPTIONS,
 615         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 616         panic::PANIC_PARAMS,
 617         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 618         precedence::PRECEDENCE,
 619         ptr::CMP_NULL,
 620         ptr::MUT_FROM_REF,
 621         ptr::PTR_ARG,
 622         question_mark::QUESTION_MARK,
 623         ranges::ITERATOR_STEP_BY_ZERO,
 624         ranges::RANGE_MINUS_ONE,
 625         ranges::RANGE_ZIP_WITH_LEN,
 626         redundant_field_names::REDUNDANT_FIELD_NAMES,
 627         reference::DEREF_ADDROF,
 628         regex::INVALID_REGEX,
 629         regex::REGEX_MACRO,
 630         regex::TRIVIAL_REGEX,
 631         returns::LET_AND_RETURN,
 632         returns::NEEDLESS_RETURN,
 633         serde_api::SERDE_API_MISUSE,
 634         strings::STRING_LIT_AS_BYTES,
 635         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 636         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 637         swap::ALMOST_SWAPPED,
 638         swap::MANUAL_SWAP,
 639         temporary_assignment::TEMPORARY_ASSIGNMENT,
 640         transmute::CROSSPOINTER_TRANSMUTE,
 641         transmute::TRANSMUTE_BYTES_TO_STR,
 642         transmute::TRANSMUTE_INT_TO_BOOL,
 643         transmute::TRANSMUTE_INT_TO_CHAR,
 644         transmute::TRANSMUTE_INT_TO_FLOAT,
 645         transmute::TRANSMUTE_PTR_TO_PTR,
 646         transmute::TRANSMUTE_PTR_TO_REF,
 647         transmute::USELESS_TRANSMUTE,
 648         transmute::WRONG_TRANSMUTE,
 649         types::ABSURD_EXTREME_COMPARISONS,
 650         types::BORROWED_BOX,
 651         types::BOX_VEC,
 652         types::CAST_LOSSLESS,
 653         types::CAST_PTR_ALIGNMENT,
 654         types::CHAR_LIT_AS_U8,
 655         types::IMPLICIT_HASHER,
 656         types::LET_UNIT_VALUE,
 657         types::OPTION_OPTION,
 658         types::TYPE_COMPLEXITY,
 659         types::UNIT_ARG,
 660         types::UNIT_CMP,
 661         types::UNNECESSARY_CAST,
 662         unicode::ZERO_WIDTH_SPACE,
 663         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 664         unused_io_amount::UNUSED_IO_AMOUNT,
 665         unused_label::UNUSED_LABEL,
 666         vec::USELESS_VEC,
 667         write::PRINT_LITERAL,
 668         write::PRINT_WITH_NEWLINE,
 669         write::PRINTLN_EMPTY_STRING,
 670         write::WRITE_LITERAL,
 671         write::WRITE_WITH_NEWLINE,
 672         write::WRITELN_EMPTY_STRING,
 673         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 674     ]);
 675
 676     reg.register_lint_group("clippy_style", vec![
 677         assign_ops::ASSIGN_OP_PATTERN,
 678         bit_mask::VERBOSE_BIT_MASK,
 679         blacklisted_name::BLACKLISTED_NAME,
 680         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 681         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 682         collapsible_if::COLLAPSIBLE_IF,
 683         const_static_lifetime::CONST_STATIC_LIFETIME,
 684         enum_variants::ENUM_VARIANT_NAMES,
 685         enum_variants::MODULE_INCEPTION,
 686         eq_op::OP_REF,
 687         eta_reduction::REDUNDANT_CLOSURE,
 688         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 689         formatting::SUSPICIOUS_ELSE_FORMATTING,
 690         if_let_redundant_pattern_matching::IF_LET_REDUNDANT_PATTERN_MATCHING,
 691         len_zero::LEN_WITHOUT_IS_EMPTY,
 692         len_zero::LEN_ZERO,
 693         let_if_seq::USELESS_LET_IF_SEQ,
 694         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 695         literal_representation::LARGE_DIGIT_GROUPS,
 696         literal_representation::UNREADABLE_LITERAL,
 697         loops::EMPTY_LOOP,
 698         loops::EXPLICIT_INTO_ITER_LOOP,
 699         loops::EXPLICIT_ITER_LOOP,
 700         loops::FOR_KV_MAP,
 701         loops::NEEDLESS_RANGE_LOOP,
 702         loops::WHILE_LET_ON_ITERATOR,
 703         map_clone::MAP_CLONE,
 704         matches::MATCH_BOOL,
 705         matches::MATCH_OVERLAPPING_ARM,
 706         matches::MATCH_REF_PATS,
 707         matches::MATCH_WILD_ERR_ARM,
 708         matches::SINGLE_MATCH,
 709         methods::CHARS_LAST_CMP,
 710         methods::GET_UNWRAP,
 711         methods::ITER_CLONED_COLLECT,
 712         methods::ITER_SKIP_NEXT,
 713         methods::NEW_RET_NO_SELF,
 714         methods::OK_EXPECT,
 715         methods::OPTION_MAP_OR_NONE,
 716         methods::SHOULD_IMPLEMENT_TRAIT,
 717         methods::STRING_EXTEND_CHARS,
 718         methods::UNNECESSARY_FOLD,
 719         methods::WRONG_SELF_CONVENTION,
 720         misc::REDUNDANT_PATTERN,
 721         misc::TOPLEVEL_REF_ARG,
 722         misc::ZERO_PTR,
 723         misc_early::BUILTIN_TYPE_SHADOW,
 724         misc_early::DOUBLE_NEG,
 725         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 726         misc_early::MIXED_CASE_HEX_LITERALS,
 727         misc_early::UNNEEDED_FIELD_PATTERN,
 728         mut_reference::UNNECESSARY_MUT_PASSED,
 729         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 730         neg_multiply::NEG_MULTIPLY,
 731         new_without_default::NEW_WITHOUT_DEFAULT,
 732         new_without_default::NEW_WITHOUT_DEFAULT_DERIVE,
 733         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 734         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 735         ok_if_let::IF_LET_SOME_RESULT,
 736         panic::PANIC_PARAMS,
 737         ptr::CMP_NULL,
 738         ptr::PTR_ARG,
 739         question_mark::QUESTION_MARK,
 740         ranges::RANGE_MINUS_ONE,
 741         redundant_field_names::REDUNDANT_FIELD_NAMES,
 742         regex::REGEX_MACRO,
 743         regex::TRIVIAL_REGEX,
 744         returns::LET_AND_RETURN,
 745         returns::NEEDLESS_RETURN,
 746         strings::STRING_LIT_AS_BYTES,
 747         types::IMPLICIT_HASHER,
 748         types::LET_UNIT_VALUE,
 749         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 750         write::PRINT_LITERAL,
 751         write::PRINT_WITH_NEWLINE,
 752         write::PRINTLN_EMPTY_STRING,
 753         write::WRITE_LITERAL,
 754         write::WRITE_WITH_NEWLINE,
 755         write::WRITELN_EMPTY_STRING,
 756     ]);
 757
 758     reg.register_lint_group("clippy_complexity", vec![
 759         assign_ops::MISREFACTORED_ASSIGN_OP,
 760         booleans::NONMINIMAL_BOOL,
 761         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 762         double_comparison::DOUBLE_COMPARISONS,
 763         double_parens::DOUBLE_PARENS,
 764         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 765         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 766         explicit_write::EXPLICIT_WRITE,
 767         format::USELESS_FORMAT,
 768         functions::TOO_MANY_ARGUMENTS,
 769         identity_conversion::IDENTITY_CONVERSION,
 770         identity_op::IDENTITY_OP,
 771         int_plus_one::INT_PLUS_ONE,
 772         lifetimes::NEEDLESS_LIFETIMES,
 773         lifetimes::UNUSED_LIFETIMES,
 774         loops::EXPLICIT_COUNTER_LOOP,
 775         loops::MUT_RANGE_BOUND,
 776         loops::WHILE_LET_LOOP,
 777         matches::MATCH_AS_REF,
 778         methods::CHARS_NEXT_CMP,
 779         methods::CLONE_ON_COPY,
 780         methods::FILTER_NEXT,
 781         methods::SEARCH_IS_SOME,
 782         methods::USELESS_ASREF,
 783         misc::SHORT_CIRCUIT_STATEMENT,
 784         misc_early::REDUNDANT_CLOSURE_CALL,
 785         misc_early::ZERO_PREFIXED_LITERAL,
 786         needless_bool::BOOL_COMPARISON,
 787         needless_bool::NEEDLESS_BOOL,
 788         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 789         needless_update::NEEDLESS_UPDATE,
 790         no_effect::NO_EFFECT,
 791         no_effect::UNNECESSARY_OPERATION,
 792         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 793         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 794         precedence::PRECEDENCE,
 795         ranges::RANGE_ZIP_WITH_LEN,
 796         reference::DEREF_ADDROF,
 797         swap::MANUAL_SWAP,
 798         temporary_assignment::TEMPORARY_ASSIGNMENT,
 799         transmute::CROSSPOINTER_TRANSMUTE,
 800         transmute::TRANSMUTE_BYTES_TO_STR,
 801         transmute::TRANSMUTE_INT_TO_BOOL,
 802         transmute::TRANSMUTE_INT_TO_CHAR,
 803         transmute::TRANSMUTE_INT_TO_FLOAT,
 804         transmute::TRANSMUTE_PTR_TO_PTR,
 805         transmute::TRANSMUTE_PTR_TO_REF,
 806         transmute::USELESS_TRANSMUTE,
 807         types::BORROWED_BOX,
 808         types::CAST_LOSSLESS,
 809         types::CHAR_LIT_AS_U8,
 810         types::OPTION_OPTION,
 811         types::TYPE_COMPLEXITY,
 812         types::UNIT_ARG,
 813         types::UNNECESSARY_CAST,
 814         unused_label::UNUSED_LABEL,
 815         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 816     ]);
 817
 818     reg.register_lint_group("clippy_correctness", vec![
 819         approx_const::APPROX_CONSTANT,
 820         array_indexing::OUT_OF_BOUNDS_INDEXING,
 821         attrs::DEPRECATED_SEMVER,
 822         attrs::USELESS_ATTRIBUTE,
 823         bit_mask::BAD_BIT_MASK,
 824         bit_mask::INEFFECTIVE_BIT_MASK,
 825         booleans::LOGIC_BUG,
 826         copies::IF_SAME_THEN_ELSE,
 827         copies::IFS_SAME_COND,
 828         derive::DERIVE_HASH_XOR_EQ,
 829         drop_forget_ref::DROP_COPY,
 830         drop_forget_ref::DROP_REF,
 831         drop_forget_ref::FORGET_COPY,
 832         drop_forget_ref::FORGET_REF,
 833         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 834         eq_op::EQ_OP,
 835         erasing_op::ERASING_OP,
 836         formatting::POSSIBLE_MISSING_COMMA,
 837         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 838         infinite_iter::INFINITE_ITER,
 839         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 840         invalid_ref::INVALID_REF,
 841         loops::FOR_LOOP_OVER_OPTION,
 842         loops::FOR_LOOP_OVER_RESULT,
 843         loops::ITER_NEXT_LOOP,
 844         loops::NEVER_LOOP,
 845         loops::REVERSE_RANGE_LOOP,
 846         loops::WHILE_IMMUTABLE_CONDITION,
 847         methods::CLONE_DOUBLE_REF,
 848         methods::TEMPORARY_CSTRING_AS_PTR,
 849         minmax::MIN_MAX,
 850         misc::CMP_NAN,
 851         misc::FLOAT_CMP,
 852         misc::MODULO_ONE,
 853         open_options::NONSENSICAL_OPEN_OPTIONS,
 854         ptr::MUT_FROM_REF,
 855         ranges::ITERATOR_STEP_BY_ZERO,
 856         regex::INVALID_REGEX,
 857         serde_api::SERDE_API_MISUSE,
 858         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 859         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 860         swap::ALMOST_SWAPPED,
 861         transmute::WRONG_TRANSMUTE,
 862         types::ABSURD_EXTREME_COMPARISONS,
 863         types::CAST_PTR_ALIGNMENT,
 864         types::UNIT_CMP,
 865         unicode::ZERO_WIDTH_SPACE,
 866         unused_io_amount::UNUSED_IO_AMOUNT,
 867     ]);
 868
 869     reg.register_lint_group("clippy_perf", vec![
 870         bytecount::NAIVE_BYTECOUNT,
 871         entry::MAP_ENTRY,
 872         escape::BOXED_LOCAL,
 873         large_enum_variant::LARGE_ENUM_VARIANT,
 874         loops::MANUAL_MEMCPY,
 875         loops::UNUSED_COLLECT,
 876         methods::ITER_NTH,
 877         methods::OR_FUN_CALL,
 878         methods::SINGLE_CHAR_PATTERN,
 879         misc::CMP_OWNED,
 880         mutex_atomic::MUTEX_ATOMIC,
 881         types::BOX_VEC,
 882         vec::USELESS_VEC,
 883     ]);
 884
 885     reg.register_lint_group("clippy_nursery", vec![
 886         attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
 887         fallible_impl_from::FALLIBLE_IMPL_FROM,
 888         mutex_atomic::MUTEX_INTEGER,
 889         needless_borrow::NEEDLESS_BORROW,
 890         ranges::RANGE_PLUS_ONE,
 891     ]);
 892 }
 893
 894 // only exists to let the dogfood integration test works.
 895 // Don't run clippy as an executable directly
 896 #[allow(dead_code, print_stdout)]
 897 fn main() {
 898     panic!("Please use the cargo-clippy executable");
 899 }