src/lib.rs

   1 #![feature(type_macros)]
   2 #![feature(plugin_registrar, box_syntax)]
   3 #![feature(rustc_private, collections)]
   4 #![feature(iter_arith)]
   5 #![feature(custom_attribute)]
   6 #![allow(indexing_slicing, shadow_reuse, unknown_lints)]
   7
   8 // this only exists to allow the "dogfood" integration test to work
   9 #[allow(dead_code)]
  10 #[allow(print_stdout)]
  11 fn main() {
  12     println!("What are you doing? Don't run clippy as an executable");
  13 }
  14
  15 #[macro_use]
  16 extern crate syntax;
  17 #[macro_use]
  18 extern crate rustc;
  19 #[macro_use]
  20 extern crate rustc_front;
  21
  22 extern crate toml;
  23
  24 // Only for the compile time checking of paths
  25 extern crate core;
  26 extern crate collections;
  27
  28 // for unicode nfc normalization
  29 extern crate unicode_normalization;
  30
  31 // for semver check in attrs.rs
  32 extern crate semver;
  33
  34 // for regex checking
  35 extern crate regex_syntax;
  36
  37 extern crate rustc_plugin;
  38
  39 use rustc_plugin::Registry;
  40
  41 mod conf;
  42 pub mod consts;
  43 #[macro_use]
  44 pub mod utils;
  45
  46 // begin lints modules, do not remove this comment, it’s used in `update_lints`
  47 pub mod approx_const;
  48 pub mod array_indexing;
  49 pub mod attrs;
  50 pub mod bit_mask;
  51 pub mod blacklisted_name;
  52 pub mod block_in_if_condition;
  53 pub mod collapsible_if;
  54 pub mod copies;
  55 pub mod cyclomatic_complexity;
  56 pub mod derive;
  57 pub mod drop_ref;
  58 pub mod entry;
  59 pub mod enum_clike;
  60 pub mod enum_glob_use;
  61 pub mod enum_variants;
  62 pub mod eq_op;
  63 pub mod escape;
  64 pub mod eta_reduction;
  65 pub mod format;
  66 pub mod formatting;
  67 pub mod identity_op;
  68 pub mod if_not_else;
  69 pub mod items_after_statements;
  70 pub mod len_zero;
  71 pub mod lifetimes;
  72 pub mod loops;
  73 pub mod map_clone;
  74 pub mod matches;
  75 pub mod methods;
  76 pub mod minmax;
  77 pub mod misc;
  78 pub mod misc_early;
  79 pub mod mut_mut;
  80 pub mod mut_reference;
  81 pub mod mutex_atomic;
  82 pub mod needless_bool;
  83 pub mod needless_features;
  84 pub mod needless_update;
  85 pub mod new_without_default;
  86 pub mod no_effect;
  87 pub mod open_options;
  88 pub mod overflow_check_conditional;
  89 pub mod panic;
  90 pub mod precedence;
  91 pub mod print;
  92 pub mod ptr_arg;
  93 pub mod ranges;
  94 pub mod regex;
  95 pub mod returns;
  96 pub mod shadow;
  97 pub mod strings;
  98 pub mod swap;
  99 pub mod temporary_assignment;
 100 pub mod transmute;
 101 pub mod types;
 102 pub mod unicode;
 103 pub mod unused_label;
 104 pub mod vec;
 105 pub mod zero_div_zero;
 106 // end lints modules, do not remove this comment, it’s used in `update_lints`
 107
 108 mod reexport {
 109     pub use syntax::ast::{Name, NodeId};
 110 }
 111
 112 #[plugin_registrar]
 113 #[cfg_attr(rustfmt, rustfmt_skip)]
 114 pub fn plugin_registrar(reg: &mut Registry) {
 115     let conferr = match conf::conf_file(reg.args()) {
 116         Ok(Some(file_name)) => {
 117             conf::read_conf(&file_name, true)
 118         }
 119         Ok(None) => {
 120             conf::read_conf("Clippy.toml", false)
 121         }
 122         Err((err, span)) => {
 123             reg.sess.struct_span_err(span, err).emit();
 124             return;
 125         }
 126     };
 127
 128     let conf = match conferr {
 129         Ok(conf) => conf,
 130         Err(err) => {
 131             reg.sess.struct_err(&format!("error reading Clippy's configuration file: {}", err)).emit();
 132             return;
 133         }
 134     };
 135
 136     reg.register_late_lint_pass(box types::TypePass);
 137     reg.register_late_lint_pass(box misc::TopLevelRefPass);
 138     reg.register_late_lint_pass(box misc::CmpNan);
 139     reg.register_late_lint_pass(box eq_op::EqOp);
 140     reg.register_early_lint_pass(box enum_variants::EnumVariantNames);
 141     reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse);
 142     reg.register_late_lint_pass(box enum_clike::EnumClikeUnportableVariant);
 143     reg.register_late_lint_pass(box bit_mask::BitMask);
 144     reg.register_late_lint_pass(box ptr_arg::PtrArg);
 145     reg.register_late_lint_pass(box needless_bool::NeedlessBool);
 146     reg.register_late_lint_pass(box needless_bool::BoolComparison);
 147     reg.register_late_lint_pass(box approx_const::ApproxConstant);
 148     reg.register_late_lint_pass(box misc::FloatCmp);
 149     reg.register_early_lint_pass(box precedence::Precedence);
 150     reg.register_late_lint_pass(box eta_reduction::EtaPass);
 151     reg.register_late_lint_pass(box identity_op::IdentityOp);
 152     reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatemets);
 153     reg.register_late_lint_pass(box mut_mut::MutMut);
 154     reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed);
 155     reg.register_late_lint_pass(box len_zero::LenZero);
 156     reg.register_late_lint_pass(box misc::CmpOwned);
 157     reg.register_late_lint_pass(box attrs::AttrPass);
 158     reg.register_late_lint_pass(box collapsible_if::CollapsibleIf);
 159     reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition);
 160     reg.register_late_lint_pass(box misc::ModuloOne);
 161     reg.register_late_lint_pass(box unicode::Unicode);
 162     reg.register_late_lint_pass(box strings::StringAdd);
 163     reg.register_early_lint_pass(box returns::ReturnPass);
 164     reg.register_late_lint_pass(box methods::MethodsPass);
 165     reg.register_late_lint_pass(box shadow::ShadowPass);
 166     reg.register_late_lint_pass(box types::LetPass);
 167     reg.register_late_lint_pass(box types::UnitCmp);
 168     reg.register_late_lint_pass(box loops::LoopsPass);
 169     reg.register_late_lint_pass(box lifetimes::LifetimePass);
 170     reg.register_late_lint_pass(box entry::HashMapLint);
 171     reg.register_late_lint_pass(box ranges::StepByZero);
 172     reg.register_late_lint_pass(box types::CastPass);
 173     reg.register_late_lint_pass(box types::TypeComplexityPass::new(conf.type_complexity_threshold));
 174     reg.register_late_lint_pass(box matches::MatchPass);
 175     reg.register_late_lint_pass(box misc::PatternPass);
 176     reg.register_late_lint_pass(box minmax::MinMaxPass);
 177     reg.register_late_lint_pass(box open_options::NonSensicalOpenOptions);
 178     reg.register_late_lint_pass(box zero_div_zero::ZeroDivZeroPass);
 179     reg.register_late_lint_pass(box mutex_atomic::MutexAtomic);
 180     reg.register_late_lint_pass(box needless_features::NeedlessFeaturesPass);
 181     reg.register_late_lint_pass(box needless_update::NeedlessUpdatePass);
 182     reg.register_late_lint_pass(box no_effect::NoEffectPass);
 183     reg.register_late_lint_pass(box map_clone::MapClonePass);
 184     reg.register_late_lint_pass(box temporary_assignment::TemporaryAssignmentPass);
 185     reg.register_late_lint_pass(box transmute::UselessTransmute);
 186     reg.register_late_lint_pass(box cyclomatic_complexity::CyclomaticComplexity::new(conf.cyclomatic_complexity_threshold));
 187     reg.register_late_lint_pass(box escape::EscapePass);
 188     reg.register_early_lint_pass(box misc_early::MiscEarly);
 189     reg.register_late_lint_pass(box misc::UsedUnderscoreBinding);
 190     reg.register_late_lint_pass(box array_indexing::ArrayIndexing);
 191     reg.register_late_lint_pass(box panic::PanicPass);
 192     reg.register_late_lint_pass(box strings::StringLitAsBytes);
 193     reg.register_late_lint_pass(box derive::Derive);
 194     reg.register_late_lint_pass(box types::CharLitAsU8);
 195     reg.register_late_lint_pass(box print::PrintLint);
 196     reg.register_late_lint_pass(box vec::UselessVec);
 197     reg.register_late_lint_pass(box drop_ref::DropRefPass);
 198     reg.register_late_lint_pass(box types::AbsurdExtremeComparisons);
 199     reg.register_late_lint_pass(box regex::RegexPass::default());
 200     reg.register_late_lint_pass(box copies::CopyAndPaste);
 201     reg.register_late_lint_pass(box format::FormatMacLint);
 202     reg.register_early_lint_pass(box formatting::Formatting);
 203     reg.register_late_lint_pass(box swap::Swap);
 204     reg.register_early_lint_pass(box if_not_else::IfNotElse);
 205     reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional);
 206     reg.register_late_lint_pass(box unused_label::UnusedLabel);
 207     reg.register_late_lint_pass(box new_without_default::NewWithoutDefault);
 208     reg.register_late_lint_pass(box blacklisted_name::BlackListedName::new(conf.blacklisted_names));
 209
 210     reg.register_lint_group("clippy_pedantic", vec![
 211         array_indexing::INDEXING_SLICING,
 212         enum_glob_use::ENUM_GLOB_USE,
 213         matches::SINGLE_MATCH_ELSE,
 214         methods::OPTION_UNWRAP_USED,
 215         methods::RESULT_UNWRAP_USED,
 216         methods::WRONG_PUB_SELF_CONVENTION,
 217         mut_mut::MUT_MUT,
 218         mutex_atomic::MUTEX_INTEGER,
 219         print::PRINT_STDOUT,
 220         print::USE_DEBUG,
 221         shadow::SHADOW_REUSE,
 222         shadow::SHADOW_SAME,
 223         shadow::SHADOW_UNRELATED,
 224         strings::STRING_ADD,
 225         strings::STRING_ADD_ASSIGN,
 226         types::CAST_POSSIBLE_TRUNCATION,
 227         types::CAST_POSSIBLE_WRAP,
 228         types::CAST_PRECISION_LOSS,
 229         types::CAST_SIGN_LOSS,
 230         unicode::NON_ASCII_LITERAL,
 231         unicode::UNICODE_NOT_NFC,
 232     ]);
 233
 234     reg.register_lint_group("clippy", vec![
 235         approx_const::APPROX_CONSTANT,
 236         array_indexing::OUT_OF_BOUNDS_INDEXING,
 237         attrs::DEPRECATED_SEMVER,
 238         attrs::INLINE_ALWAYS,
 239         bit_mask::BAD_BIT_MASK,
 240         bit_mask::INEFFECTIVE_BIT_MASK,
 241         blacklisted_name::BLACKLISTED_NAME,
 242         block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR,
 243         block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT,
 244         collapsible_if::COLLAPSIBLE_IF,
 245         copies::IF_SAME_THEN_ELSE,
 246         copies::IFS_SAME_COND,
 247         copies::MATCH_SAME_ARMS,
 248         cyclomatic_complexity::CYCLOMATIC_COMPLEXITY,
 249         derive::DERIVE_HASH_XOR_EQ,
 250         derive::EXPL_IMPL_CLONE_ON_COPY,
 251         drop_ref::DROP_REF,
 252         entry::MAP_ENTRY,
 253         enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT,
 254         enum_variants::ENUM_VARIANT_NAMES,
 255         eq_op::EQ_OP,
 256         escape::BOXED_LOCAL,
 257         eta_reduction::REDUNDANT_CLOSURE,
 258         format::USELESS_FORMAT,
 259         formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING,
 260         formatting::SUSPICIOUS_ELSE_FORMATTING,
 261         identity_op::IDENTITY_OP,
 262         if_not_else::IF_NOT_ELSE,
 263         items_after_statements::ITEMS_AFTER_STATEMENTS,
 264         len_zero::LEN_WITHOUT_IS_EMPTY,
 265         len_zero::LEN_ZERO,
 266         lifetimes::NEEDLESS_LIFETIMES,
 267         lifetimes::UNUSED_LIFETIMES,
 268         loops::EMPTY_LOOP,
 269         loops::EXPLICIT_COUNTER_LOOP,
 270         loops::EXPLICIT_ITER_LOOP,
 271         loops::FOR_KV_MAP,
 272         loops::FOR_LOOP_OVER_OPTION,
 273         loops::FOR_LOOP_OVER_RESULT,
 274         loops::ITER_NEXT_LOOP,
 275         loops::NEEDLESS_RANGE_LOOP,
 276         loops::REVERSE_RANGE_LOOP,
 277         loops::UNUSED_COLLECT,
 278         loops::WHILE_LET_LOOP,
 279         loops::WHILE_LET_ON_ITERATOR,
 280         map_clone::MAP_CLONE,
 281         matches::MATCH_BOOL,
 282         matches::MATCH_OVERLAPPING_ARM,
 283         matches::MATCH_REF_PATS,
 284         matches::SINGLE_MATCH,
 285         methods::CHARS_NEXT_CMP,
 286         methods::CLONE_DOUBLE_REF,
 287         methods::CLONE_ON_COPY,
 288         methods::EXTEND_FROM_SLICE,
 289         methods::FILTER_NEXT,
 290         methods::NEW_RET_NO_SELF,
 291         methods::OK_EXPECT,
 292         methods::OPTION_MAP_UNWRAP_OR,
 293         methods::OPTION_MAP_UNWRAP_OR_ELSE,
 294         methods::OR_FUN_CALL,
 295         methods::SEARCH_IS_SOME,
 296         methods::SHOULD_IMPLEMENT_TRAIT,
 297         methods::SINGLE_CHAR_PATTERN,
 298         methods::STR_TO_STRING,
 299         methods::STRING_TO_STRING,
 300         methods::WRONG_SELF_CONVENTION,
 301         minmax::MIN_MAX,
 302         misc::CMP_NAN,
 303         misc::CMP_OWNED,
 304         misc::FLOAT_CMP,
 305         misc::MODULO_ONE,
 306         misc::REDUNDANT_PATTERN,
 307         misc::TOPLEVEL_REF_ARG,
 308         misc::USED_UNDERSCORE_BINDING,
 309         misc_early::DUPLICATE_UNDERSCORE_ARGUMENT,
 310         misc_early::REDUNDANT_CLOSURE_CALL,
 311         misc_early::UNNEEDED_FIELD_PATTERN,
 312         mut_reference::UNNECESSARY_MUT_PASSED,
 313         mutex_atomic::MUTEX_ATOMIC,
 314         needless_bool::BOOL_COMPARISON,
 315         needless_bool::NEEDLESS_BOOL,
 316         needless_features::UNSTABLE_AS_MUT_SLICE,
 317         needless_features::UNSTABLE_AS_SLICE,
 318         needless_update::NEEDLESS_UPDATE,
 319         new_without_default::NEW_WITHOUT_DEFAULT,
 320         no_effect::NO_EFFECT,
 321         open_options::NONSENSICAL_OPEN_OPTIONS,
 322         overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL,
 323         panic::PANIC_PARAMS,
 324         precedence::PRECEDENCE,
 325         ptr_arg::PTR_ARG,
 326         ranges::RANGE_STEP_BY_ZERO,
 327         ranges::RANGE_ZIP_WITH_LEN,
 328         regex::INVALID_REGEX,
 329         regex::REGEX_MACRO,
 330         regex::TRIVIAL_REGEX,
 331         returns::LET_AND_RETURN,
 332         returns::NEEDLESS_RETURN,
 333         strings::STRING_LIT_AS_BYTES,
 334         swap::ALMOST_SWAPPED,
 335         swap::MANUAL_SWAP,
 336         temporary_assignment::TEMPORARY_ASSIGNMENT,
 337         transmute::USELESS_TRANSMUTE,
 338         types::ABSURD_EXTREME_COMPARISONS,
 339         types::BOX_VEC,
 340         types::CHAR_LIT_AS_U8,
 341         types::LET_UNIT_VALUE,
 342         types::LINKEDLIST,
 343         types::TYPE_COMPLEXITY,
 344         types::UNIT_CMP,
 345         unicode::ZERO_WIDTH_SPACE,
 346         unused_label::UNUSED_LABEL,
 347         vec::USELESS_VEC,
 348         zero_div_zero::ZERO_DIVIDED_BY_ZERO,
 349     ]);
 350 }