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