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
  14 // FIXME(mark-i-m) remove after i128 stablization merges
  15 #![allow(stable_features)]
  16 #![feature(i128, i128_type)]
  17
  18 #[macro_use]
  19 extern crate rustc;
  20 extern crate rustc_typeck;
  21 extern crate syntax;
  22 extern crate syntax_pos;
  23
  24 extern crate toml;
  25
  26 // for unicode nfc normalization
  27
  28 extern crate unicode_normalization;
  29
  30 // for semver check in attrs.rs
  31
  32 extern crate semver;
  33
  34 // for regex checking
  35
  36 extern crate regex_syntax;
  37
  38 // for finding minimal boolean expressions
  39
  40 extern crate quine_mc_cluskey;
  41
  42 extern crate rustc_const_math;
  43 extern crate rustc_errors;
  44 extern crate rustc_plugin;
  45
  46 #[macro_use]
  47 extern crate matches as matches_macro;
  48
  49 extern crate serde;
  50 #[macro_use]
  51 extern crate serde_derive;
  52
  53 #[macro_use]
  54 extern crate lazy_static;
  55
  56 extern crate itertools;
  57 extern crate pulldown_cmark;
  58 extern crate url;
  59
  60 #[macro_use]
  61 extern crate if_chain;
  62
  63 macro_rules! declare_clippy_lint {
  64     { pub $name:tt, style, $description:tt } => {
  65         declare_lint! { pub $name, Warn, $description }
  66     };
  67     { pub $name:tt, correctness, $description:tt } => {
  68         declare_lint! { pub $name, Deny, $description }
  69     };
  70     { pub $name:tt, complexity, $description:tt } => {
  71         declare_lint! { pub $name, Warn, $description }
  72     };
  73     { pub $name:tt, perf, $description:tt } => {
  74         declare_lint! { pub $name, Warn, $description }
  75     };
  76     { pub $name:tt, pedantic, $description:tt } => {
  77         declare_lint! { pub $name, Allow, $description }
  78     };
  79     { pub $name:tt, restriction, $description:tt } => {
  80         declare_lint! { pub $name, Allow, $description }
  81     };
  82     { pub $name:tt, nursery, $description:tt } => {
  83         declare_lint! { pub $name, Allow, $description }
  84     };
  85     { pub $name:tt, internal, $description:tt } => {
  86         declare_lint! { pub $name, Allow, $description }
  87     };
  88     { pub $name:tt, internal_warn, $description:tt } => {
  89         declare_lint! { pub $name, Warn, $description }
  90     };
  91 }
  92
  93 pub mod consts;
  94 #[macro_use]
  95 pub mod utils;
  96
  97 // begin lints modules, do not remove this comment, it’s used in `update_lints`
  98 pub mod approx_const;
  99 pub mod arithmetic;
 100 pub mod array_indexing;
 101 pub mod assign_ops;
 102 pub mod attrs;
 103 pub mod bit_mask;
 104 pub mod blacklisted_name;
 105 pub mod block_in_if_condition;
 106 pub mod booleans;
 107 pub mod bytecount;
 108 pub mod collapsible_if;
 109 pub mod const_static_lifetime;
 110 pub mod copies;
 111 pub mod cyclomatic_complexity;
 112 pub mod derive;
 113 pub mod doc;
 114 pub mod double_comparison;
 115 pub mod double_parens;
 116 pub mod drop_forget_ref;
 117 pub mod else_if_without_else;
 118 pub mod empty_enum;
 119 pub mod entry;
 120 pub mod enum_clike;
 121 pub mod enum_glob_use;
 122 pub mod enum_variants;
 123 pub mod eq_op;
 124 pub mod erasing_op;
 125 pub mod escape;
 126 pub mod eta_reduction;
 127 pub mod eval_order_dependence;
 128 pub mod explicit_write;
 129 pub mod fallible_impl_from;
 130 pub mod format;
 131 pub mod formatting;
 132 pub mod functions;
 133 pub mod identity_conversion;
 134 pub mod identity_op;
 135 pub mod if_let_redundant_pattern_matching;
 136 pub mod if_not_else;
 137 pub mod infinite_iter;
 138 pub mod inline_fn_without_body;
 139 pub mod int_plus_one;
 140 pub mod invalid_ref;
 141 pub mod items_after_statements;
 142 pub mod large_enum_variant;
 143 pub mod len_zero;
 144 pub mod let_if_seq;
 145 pub mod lifetimes;
 146 pub mod literal_representation;
 147 pub mod loops;
 148 pub mod map_clone;
 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 print;
 176 pub mod ptr;
 177 pub mod question_mark;
 178 pub mod ranges;
 179 pub mod redundant_field_names;
 180 pub mod reference;
 181 pub mod regex;
 182 pub mod replace_consts;
 183 pub mod returns;
 184 pub mod serde_api;
 185 pub mod shadow;
 186 pub mod strings;
 187 pub mod suspicious_trait_impl;
 188 pub mod swap;
 189 pub mod temporary_assignment;
 190 pub mod transmute;
 191 pub mod types;
 192 pub mod unicode;
 193 pub mod unsafe_removed_from_name;
 194 pub mod unused_io_amount;
 195 pub mod unused_label;
 196 pub mod use_self;
 197 pub mod vec;
 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 print::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
 410
 411     reg.register_lint_group("clippy_restriction", vec![
 412         arithmetic::FLOAT_ARITHMETIC,
 413         arithmetic::INTEGER_ARITHMETIC,
 414         array_indexing::INDEXING_SLICING,
 415         assign_ops::ASSIGN_OPS,
 416         else_if_without_else::ELSE_IF_WITHOUT_ELSE,
 417         literal_representation::DECIMAL_LITERAL_REPRESENTATION,
 418         mem_forget::MEM_FORGET,
 419         methods::CLONE_ON_REF_PTR,
 420         methods::OPTION_UNWRAP_USED,
 421         methods::RESULT_UNWRAP_USED,
 422         methods::WRONG_PUB_SELF_CONVENTION,
 423         misc::FLOAT_CMP_CONST,
 424         missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS,
 425         print::PRINT_STDOUT,
 426         print::USE_DEBUG,
 427         shadow::SHADOW_REUSE,
 428         shadow::SHADOW_SAME,
 429         shadow::SHADOW_UNRELATED,
 430         strings::STRING_ADD,
 431     ]);
 432
 433     reg.register_lint_group("clippy_pedantic", vec![
 434         attrs::INLINE_ALWAYS,
 435         copies::MATCH_SAME_ARMS,
 436         derive::EXPL_IMPL_CLONE_ON_COPY,
 437         doc::DOC_MARKDOWN,
 438         empty_enum::EMPTY_ENUM,
 439         enum_glob_use::ENUM_GLOB_USE,
 440         enum_variants::PUB_ENUM_VARIANT_NAMES,
 441         enum_variants::STUTTER,
 442         if_not_else::IF_NOT_ELSE,
 443         infinite_iter::MAYBE_INFINITE_ITER,
 444         items_after_statements::ITEMS_AFTER_STATEMENTS,
 445         matches::SINGLE_MATCH_ELSE,
 446         methods::FILTER_MAP,
 447         methods::OPTION_MAP_UNWRAP_OR,
 448         methods::OPTION_MAP_UNWRAP_OR_ELSE,
 449         methods::RESULT_MAP_UNWRAP_OR_ELSE,
 450         misc::USED_UNDERSCORE_BINDING,
 451         misc_early::UNSEPARATED_LITERAL_SUFFIX,
 452         mut_mut::MUT_MUT,
 453         needless_continue::NEEDLESS_CONTINUE,
 454         non_expressive_names::SIMILAR_NAMES,
 455         replace_consts::REPLACE_CONSTS,
 456         strings::STRING_ADD_ASSIGN,
 457         types::CAST_POSSIBLE_TRUNCATION,
 458         types::CAST_POSSIBLE_WRAP,
 459         types::CAST_PRECISION_LOSS,
 460         types::CAST_SIGN_LOSS,
 461         types::INVALID_UPCAST_COMPARISONS,
 462         types::LINKEDLIST,
 463         unicode::NON_ASCII_LITERAL,
 464         unicode::UNICODE_NOT_NFC,
 465         use_self::USE_SELF,
 466     ]);
 467
 468     reg.register_lint_group("clippy_internal", vec![
 469         utils::internal_lints::CLIPPY_LINTS_INTERNAL,
 470         utils::internal_lints::LINT_WITHOUT_LINT_PASS,
 471     ]);
 472
 473     reg.register_lint_group("clippy", vec![
 474         approx_const::APPROX_CONSTANT,
 475         array_indexing::OUT_OF_BOUNDS_INDEXING,
 476         assign_ops::ASSIGN_OP_PATTERN,
 477         assign_ops::MISREFACTORED_ASSIGN_OP,
 478         attrs::DEPRECATED_SEMVER,
 479         attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
 480         attrs::USELESS_ATTRIBUTE,
 481         bit_mask::BAD_BIT_MASK,
 482         bit_mask::INEFFECTIVE_BIT_MASK,
 483         bit_mask::VERBOSE_BIT_MASK,
 484         blacklisted_name::BLACKLISTED_NAME,
 485         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 486         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 487         booleans::LOGIC_BUG,
 488         booleans::NONMINIMAL_BOOL,
 489         bytecount::NAIVE_BYTECOUNT,
 490         collapsible_if::COLLAPSIBLE_IF,
 491         const_static_lifetime::CONST_STATIC_LIFETIME,
 492         copies::IF_SAME_THEN_ELSE,
 493         copies::IFS_SAME_COND,
 494         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 495         derive::DERIVE_HASH_XOR_EQ,
 496         double_comparison::DOUBLE_COMPARISONS,
 497         double_parens::DOUBLE_PARENS,
 498         drop_forget_ref::DROP_COPY,
 499         drop_forget_ref::DROP_REF,
 500         drop_forget_ref::FORGET_COPY,
 501         drop_forget_ref::FORGET_REF,
 502         entry::MAP_ENTRY,
 503         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 504         enum_variants::ENUM_VARIANT_NAMES,
 505         enum_variants::MODULE_INCEPTION,
 506         eq_op::EQ_OP,
 507         eq_op::OP_REF,
 508         erasing_op::ERASING_OP,
 509         escape::BOXED_LOCAL,
 510         eta_reduction::REDUNDANT_CLOSURE,
 511         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 512         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 513         explicit_write::EXPLICIT_WRITE,
 514         format::USELESS_FORMAT,
 515         formatting::POSSIBLE_MISSING_COMMA,
 516         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 517         formatting::SUSPICIOUS_ELSE_FORMATTING,
 518         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 519         functions::TOO_MANY_ARGUMENTS,
 520         identity_conversion::IDENTITY_CONVERSION,
 521         identity_op::IDENTITY_OP,
 522         if_let_redundant_pattern_matching::IF_LET_REDUNDANT_PATTERN_MATCHING,
 523         infinite_iter::INFINITE_ITER,
 524         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 525         int_plus_one::INT_PLUS_ONE,
 526         invalid_ref::INVALID_REF,
 527         large_enum_variant::LARGE_ENUM_VARIANT,
 528         len_zero::LEN_WITHOUT_IS_EMPTY,
 529         len_zero::LEN_ZERO,
 530         let_if_seq::USELESS_LET_IF_SEQ,
 531         lifetimes::NEEDLESS_LIFETIMES,
 532         lifetimes::UNUSED_LIFETIMES,
 533         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 534         literal_representation::LARGE_DIGIT_GROUPS,
 535         literal_representation::UNREADABLE_LITERAL,
 536         loops::EMPTY_LOOP,
 537         loops::EXPLICIT_COUNTER_LOOP,
 538         loops::EXPLICIT_INTO_ITER_LOOP,
 539         loops::EXPLICIT_ITER_LOOP,
 540         loops::FOR_KV_MAP,
 541         loops::FOR_LOOP_OVER_OPTION,
 542         loops::FOR_LOOP_OVER_RESULT,
 543         loops::ITER_NEXT_LOOP,
 544         loops::MANUAL_MEMCPY,
 545         loops::MUT_RANGE_BOUND,
 546         loops::NEEDLESS_RANGE_LOOP,
 547         loops::NEVER_LOOP,
 548         loops::REVERSE_RANGE_LOOP,
 549         loops::UNUSED_COLLECT,
 550         loops::WHILE_IMMUTABLE_CONDITION,
 551         loops::WHILE_LET_LOOP,
 552         loops::WHILE_LET_ON_ITERATOR,
 553         map_clone::MAP_CLONE,
 554         matches::MATCH_AS_REF,
 555         matches::MATCH_BOOL,
 556         matches::MATCH_OVERLAPPING_ARM,
 557         matches::MATCH_REF_PATS,
 558         matches::MATCH_WILD_ERR_ARM,
 559         matches::SINGLE_MATCH,
 560         methods::CHARS_LAST_CMP,
 561         methods::CHARS_NEXT_CMP,
 562         methods::CLONE_DOUBLE_REF,
 563         methods::CLONE_ON_COPY,
 564         methods::FILTER_NEXT,
 565         methods::GET_UNWRAP,
 566         methods::ITER_CLONED_COLLECT,
 567         methods::ITER_NTH,
 568         methods::ITER_SKIP_NEXT,
 569         methods::NEW_RET_NO_SELF,
 570         methods::OK_EXPECT,
 571         methods::OPTION_MAP_OR_NONE,
 572         methods::OR_FUN_CALL,
 573         methods::SEARCH_IS_SOME,
 574         methods::SHOULD_IMPLEMENT_TRAIT,
 575         methods::SINGLE_CHAR_PATTERN,
 576         methods::STRING_EXTEND_CHARS,
 577         methods::TEMPORARY_CSTRING_AS_PTR,
 578         methods::UNNECESSARY_FOLD,
 579         methods::USELESS_ASREF,
 580         methods::WRONG_SELF_CONVENTION,
 581         minmax::MIN_MAX,
 582         misc::CMP_NAN,
 583         misc::CMP_OWNED,
 584         misc::FLOAT_CMP,
 585         misc::MODULO_ONE,
 586         misc::REDUNDANT_PATTERN,
 587         misc::SHORT_CIRCUIT_STATEMENT,
 588         misc::TOPLEVEL_REF_ARG,
 589         misc::ZERO_PTR,
 590         misc_early::BUILTIN_TYPE_SHADOW,
 591         misc_early::DOUBLE_NEG,
 592         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 593         misc_early::MIXED_CASE_HEX_LITERALS,
 594         misc_early::REDUNDANT_CLOSURE_CALL,
 595         misc_early::UNNEEDED_FIELD_PATTERN,
 596         misc_early::ZERO_PREFIXED_LITERAL,
 597         mut_reference::UNNECESSARY_MUT_PASSED,
 598         mutex_atomic::MUTEX_ATOMIC,
 599         needless_bool::BOOL_COMPARISON,
 600         needless_bool::NEEDLESS_BOOL,
 601         needless_borrow::NEEDLESS_BORROW,
 602         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 603         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 604         needless_update::NEEDLESS_UPDATE,
 605         neg_multiply::NEG_MULTIPLY,
 606         new_without_default::NEW_WITHOUT_DEFAULT,
 607         new_without_default::NEW_WITHOUT_DEFAULT_DERIVE,
 608         no_effect::NO_EFFECT,
 609         no_effect::UNNECESSARY_OPERATION,
 610         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 611         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 612         ok_if_let::IF_LET_SOME_RESULT,
 613         open_options::NONSENSICAL_OPEN_OPTIONS,
 614         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 615         panic::PANIC_PARAMS,
 616         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 617         precedence::PRECEDENCE,
 618         print::PRINT_WITH_NEWLINE,
 619         print::PRINTLN_EMPTY_STRING,
 620         ptr::CMP_NULL,
 621         ptr::MUT_FROM_REF,
 622         ptr::PTR_ARG,
 623         question_mark::QUESTION_MARK,
 624         ranges::ITERATOR_STEP_BY_ZERO,
 625         ranges::RANGE_MINUS_ONE,
 626         ranges::RANGE_ZIP_WITH_LEN,
 627         redundant_field_names::REDUNDANT_FIELD_NAMES,
 628         reference::DEREF_ADDROF,
 629         regex::INVALID_REGEX,
 630         regex::REGEX_MACRO,
 631         regex::TRIVIAL_REGEX,
 632         returns::LET_AND_RETURN,
 633         returns::NEEDLESS_RETURN,
 634         serde_api::SERDE_API_MISUSE,
 635         strings::STRING_LIT_AS_BYTES,
 636         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 637         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 638         swap::ALMOST_SWAPPED,
 639         swap::MANUAL_SWAP,
 640         temporary_assignment::TEMPORARY_ASSIGNMENT,
 641         transmute::CROSSPOINTER_TRANSMUTE,
 642         transmute::TRANSMUTE_BYTES_TO_STR,
 643         transmute::TRANSMUTE_INT_TO_BOOL,
 644         transmute::TRANSMUTE_INT_TO_CHAR,
 645         transmute::TRANSMUTE_INT_TO_FLOAT,
 646         transmute::TRANSMUTE_PTR_TO_REF,
 647         transmute::TRANSMUTE_PTR_TO_PTR,
 648         transmute::USELESS_TRANSMUTE,
 649         transmute::WRONG_TRANSMUTE,
 650         types::ABSURD_EXTREME_COMPARISONS,
 651         types::BORROWED_BOX,
 652         types::BOX_VEC,
 653         types::CAST_LOSSLESS,
 654         types::CAST_PTR_ALIGNMENT,
 655         types::CHAR_LIT_AS_U8,
 656         types::IMPLICIT_HASHER,
 657         types::LET_UNIT_VALUE,
 658         types::OPTION_OPTION,
 659         types::TYPE_COMPLEXITY,
 660         types::UNIT_ARG,
 661         types::UNIT_CMP,
 662         types::UNNECESSARY_CAST,
 663         unicode::ZERO_WIDTH_SPACE,
 664         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 665         unused_io_amount::UNUSED_IO_AMOUNT,
 666         unused_label::UNUSED_LABEL,
 667         vec::USELESS_VEC,
 668         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 669     ]);
 670
 671     reg.register_lint_group("clippy_style", vec![
 672         assign_ops::ASSIGN_OP_PATTERN,
 673         attrs::EMPTY_LINE_AFTER_OUTER_ATTR,
 674         bit_mask::VERBOSE_BIT_MASK,
 675         blacklisted_name::BLACKLISTED_NAME,
 676         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 677         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 678         collapsible_if::COLLAPSIBLE_IF,
 679         const_static_lifetime::CONST_STATIC_LIFETIME,
 680         enum_variants::ENUM_VARIANT_NAMES,
 681         enum_variants::MODULE_INCEPTION,
 682         eq_op::OP_REF,
 683         eta_reduction::REDUNDANT_CLOSURE,
 684         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 685         formatting::SUSPICIOUS_ELSE_FORMATTING,
 686         if_let_redundant_pattern_matching::IF_LET_REDUNDANT_PATTERN_MATCHING,
 687         len_zero::LEN_WITHOUT_IS_EMPTY,
 688         len_zero::LEN_ZERO,
 689         let_if_seq::USELESS_LET_IF_SEQ,
 690         literal_representation::INCONSISTENT_DIGIT_GROUPING,
 691         literal_representation::LARGE_DIGIT_GROUPS,
 692         literal_representation::UNREADABLE_LITERAL,
 693         loops::EMPTY_LOOP,
 694         loops::EXPLICIT_INTO_ITER_LOOP,
 695         loops::EXPLICIT_ITER_LOOP,
 696         loops::FOR_KV_MAP,
 697         loops::NEEDLESS_RANGE_LOOP,
 698         loops::WHILE_LET_ON_ITERATOR,
 699         map_clone::MAP_CLONE,
 700         matches::MATCH_BOOL,
 701         matches::MATCH_OVERLAPPING_ARM,
 702         matches::MATCH_REF_PATS,
 703         matches::MATCH_WILD_ERR_ARM,
 704         matches::SINGLE_MATCH,
 705         methods::CHARS_LAST_CMP,
 706         methods::GET_UNWRAP,
 707         methods::ITER_CLONED_COLLECT,
 708         methods::ITER_SKIP_NEXT,
 709         methods::NEW_RET_NO_SELF,
 710         methods::OK_EXPECT,
 711         methods::OPTION_MAP_OR_NONE,
 712         methods::SHOULD_IMPLEMENT_TRAIT,
 713         methods::STRING_EXTEND_CHARS,
 714         methods::UNNECESSARY_FOLD,
 715         methods::WRONG_SELF_CONVENTION,
 716         misc::REDUNDANT_PATTERN,
 717         misc::TOPLEVEL_REF_ARG,
 718         misc::ZERO_PTR,
 719         misc_early::BUILTIN_TYPE_SHADOW,
 720         misc_early::DOUBLE_NEG,
 721         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 722         misc_early::MIXED_CASE_HEX_LITERALS,
 723         misc_early::UNNEEDED_FIELD_PATTERN,
 724         mut_reference::UNNECESSARY_MUT_PASSED,
 725         needless_pass_by_value::NEEDLESS_PASS_BY_VALUE,
 726         neg_multiply::NEG_MULTIPLY,
 727         new_without_default::NEW_WITHOUT_DEFAULT,
 728         new_without_default::NEW_WITHOUT_DEFAULT_DERIVE,
 729         non_expressive_names::JUST_UNDERSCORES_AND_DIGITS,
 730         non_expressive_names::MANY_SINGLE_CHAR_NAMES,
 731         ok_if_let::IF_LET_SOME_RESULT,
 732         panic::PANIC_PARAMS,
 733         print::PRINT_WITH_NEWLINE,
 734         print::PRINTLN_EMPTY_STRING,
 735         ptr::CMP_NULL,
 736         ptr::PTR_ARG,
 737         question_mark::QUESTION_MARK,
 738         ranges::RANGE_MINUS_ONE,
 739         redundant_field_names::REDUNDANT_FIELD_NAMES,
 740         regex::REGEX_MACRO,
 741         regex::TRIVIAL_REGEX,
 742         returns::LET_AND_RETURN,
 743         returns::NEEDLESS_RETURN,
 744         strings::STRING_LIT_AS_BYTES,
 745         types::IMPLICIT_HASHER,
 746         types::LET_UNIT_VALUE,
 747         unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME,
 748     ]);
 749
 750     reg.register_lint_group("clippy_complexity", vec![
 751         assign_ops::MISREFACTORED_ASSIGN_OP,
 752         booleans::NONMINIMAL_BOOL,
 753         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 754         double_comparison::DOUBLE_COMPARISONS,
 755         double_parens::DOUBLE_PARENS,
 756         eval_order_dependence::DIVERGING_SUB_EXPRESSION,
 757         eval_order_dependence::EVAL_ORDER_DEPENDENCE,
 758         explicit_write::EXPLICIT_WRITE,
 759         format::USELESS_FORMAT,
 760         functions::TOO_MANY_ARGUMENTS,
 761         identity_conversion::IDENTITY_CONVERSION,
 762         identity_op::IDENTITY_OP,
 763         int_plus_one::INT_PLUS_ONE,
 764         lifetimes::NEEDLESS_LIFETIMES,
 765         lifetimes::UNUSED_LIFETIMES,
 766         loops::EXPLICIT_COUNTER_LOOP,
 767         loops::MUT_RANGE_BOUND,
 768         loops::WHILE_LET_LOOP,
 769         matches::MATCH_AS_REF,
 770         methods::CHARS_NEXT_CMP,
 771         methods::CLONE_ON_COPY,
 772         methods::FILTER_NEXT,
 773         methods::SEARCH_IS_SOME,
 774         methods::USELESS_ASREF,
 775         misc::SHORT_CIRCUIT_STATEMENT,
 776         misc_early::REDUNDANT_CLOSURE_CALL,
 777         misc_early::ZERO_PREFIXED_LITERAL,
 778         needless_bool::BOOL_COMPARISON,
 779         needless_bool::NEEDLESS_BOOL,
 780         needless_borrow::NEEDLESS_BORROW,
 781         needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE,
 782         needless_update::NEEDLESS_UPDATE,
 783         no_effect::NO_EFFECT,
 784         no_effect::UNNECESSARY_OPERATION,
 785         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 786         partialeq_ne_impl::PARTIALEQ_NE_IMPL,
 787         precedence::PRECEDENCE,
 788         ranges::RANGE_ZIP_WITH_LEN,
 789         reference::DEREF_ADDROF,
 790         swap::MANUAL_SWAP,
 791         temporary_assignment::TEMPORARY_ASSIGNMENT,
 792         transmute::CROSSPOINTER_TRANSMUTE,
 793         transmute::TRANSMUTE_BYTES_TO_STR,
 794         transmute::TRANSMUTE_INT_TO_BOOL,
 795         transmute::TRANSMUTE_INT_TO_CHAR,
 796         transmute::TRANSMUTE_INT_TO_FLOAT,
 797         transmute::TRANSMUTE_PTR_TO_REF,
 798         transmute::TRANSMUTE_PTR_TO_PTR,
 799         transmute::USELESS_TRANSMUTE,
 800         types::BORROWED_BOX,
 801         types::CAST_LOSSLESS,
 802         types::CHAR_LIT_AS_U8,
 803         types::OPTION_OPTION,
 804         types::TYPE_COMPLEXITY,
 805         types::UNIT_ARG,
 806         types::UNNECESSARY_CAST,
 807         unused_label::UNUSED_LABEL,
 808         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 809     ]);
 810
 811     reg.register_lint_group("clippy_correctness", vec![
 812         approx_const::APPROX_CONSTANT,
 813         array_indexing::OUT_OF_BOUNDS_INDEXING,
 814         attrs::DEPRECATED_SEMVER,
 815         attrs::USELESS_ATTRIBUTE,
 816         bit_mask::BAD_BIT_MASK,
 817         bit_mask::INEFFECTIVE_BIT_MASK,
 818         booleans::LOGIC_BUG,
 819         copies::IF_SAME_THEN_ELSE,
 820         copies::IFS_SAME_COND,
 821         derive::DERIVE_HASH_XOR_EQ,
 822         drop_forget_ref::DROP_COPY,
 823         drop_forget_ref::DROP_REF,
 824         drop_forget_ref::FORGET_COPY,
 825         drop_forget_ref::FORGET_REF,
 826         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 827         eq_op::EQ_OP,
 828         erasing_op::ERASING_OP,
 829         formatting::POSSIBLE_MISSING_COMMA,
 830         functions::NOT_UNSAFE_PTR_ARG_DEREF,
 831         infinite_iter::INFINITE_ITER,
 832         inline_fn_without_body::INLINE_FN_WITHOUT_BODY,
 833         invalid_ref::INVALID_REF,
 834         loops::FOR_LOOP_OVER_OPTION,
 835         loops::FOR_LOOP_OVER_RESULT,
 836         loops::ITER_NEXT_LOOP,
 837         loops::NEVER_LOOP,
 838         loops::REVERSE_RANGE_LOOP,
 839         loops::WHILE_IMMUTABLE_CONDITION,
 840         methods::CLONE_DOUBLE_REF,
 841         methods::TEMPORARY_CSTRING_AS_PTR,
 842         minmax::MIN_MAX,
 843         misc::CMP_NAN,
 844         misc::FLOAT_CMP,
 845         misc::MODULO_ONE,
 846         open_options::NONSENSICAL_OPEN_OPTIONS,
 847         ptr::MUT_FROM_REF,
 848         ranges::ITERATOR_STEP_BY_ZERO,
 849         regex::INVALID_REGEX,
 850         serde_api::SERDE_API_MISUSE,
 851         suspicious_trait_impl::SUSPICIOUS_ARITHMETIC_IMPL,
 852         suspicious_trait_impl::SUSPICIOUS_OP_ASSIGN_IMPL,
 853         swap::ALMOST_SWAPPED,
 854         transmute::WRONG_TRANSMUTE,
 855         types::ABSURD_EXTREME_COMPARISONS,
 856         types::CAST_PTR_ALIGNMENT,
 857         types::UNIT_CMP,
 858         unicode::ZERO_WIDTH_SPACE,
 859         unused_io_amount::UNUSED_IO_AMOUNT,
 860     ]);
 861
 862     reg.register_lint_group("clippy_perf", vec![
 863         bytecount::NAIVE_BYTECOUNT,
 864         entry::MAP_ENTRY,
 865         escape::BOXED_LOCAL,
 866         large_enum_variant::LARGE_ENUM_VARIANT,
 867         loops::MANUAL_MEMCPY,
 868         loops::UNUSED_COLLECT,
 869         methods::ITER_NTH,
 870         methods::OR_FUN_CALL,
 871         methods::SINGLE_CHAR_PATTERN,
 872         misc::CMP_OWNED,
 873         mutex_atomic::MUTEX_ATOMIC,
 874         types::BOX_VEC,
 875         vec::USELESS_VEC,
 876     ]);
 877
 878     reg.register_lint_group("clippy_nursery", vec![
 879         fallible_impl_from::FALLIBLE_IMPL_FROM,
 880         mutex_atomic::MUTEX_INTEGER,
 881         ranges::RANGE_PLUS_ONE,
 882     ]);
 883 }
 884
 885 // only exists to let the dogfood integration test works.
 886 // Don't run clippy as an executable directly
 887 #[allow(dead_code, print_stdout)]
 888 fn main() {
 889     panic!("Please use the cargo-clippy executable");
 890 }