// error-pattern:cargo-clippy #![feature(box_syntax)] #![feature(custom_attribute)] #![feature(i128_type)] #![feature(i128)] #![feature(rustc_private)] #![feature(slice_patterns)] #![feature(stmt_expr_attributes)] #![feature(conservative_impl_trait)] #![feature(inclusive_range_syntax, range_contains)] #![allow(unknown_lints, indexing_slicing, shadow_reuse, missing_docs_in_private_items)] #[macro_use] extern crate rustc; extern crate syntax; extern crate syntax_pos; extern crate toml; // for unicode nfc normalization extern crate unicode_normalization; // for semver check in attrs.rs extern crate semver; // for regex checking extern crate regex_syntax; // for finding minimal boolean expressions extern crate quine_mc_cluskey; extern crate rustc_const_eval; extern crate rustc_const_math; extern crate rustc_errors; extern crate rustc_plugin; #[macro_use] extern crate matches as matches_macro; extern crate serde; #[macro_use] extern crate serde_derive; #[macro_use] extern crate lazy_static; extern crate itertools; extern crate pulldown_cmark; macro_rules! declare_restriction_lint { { pub $name:tt, $description:tt } => { declare_lint! { pub $name, Allow, $description } }; } pub mod consts; #[macro_use] pub mod utils; // begin lints modules, do not remove this comment, it’s used in `update_lints` pub mod approx_const; pub mod arithmetic; pub mod array_indexing; pub mod assign_ops; pub mod attrs; pub mod bit_mask; pub mod blacklisted_name; pub mod block_in_if_condition; pub mod booleans; pub mod bytecount; pub mod collapsible_if; pub mod copies; pub mod cyclomatic_complexity; pub mod derive; pub mod doc; pub mod double_parens; pub mod drop_forget_ref; pub mod empty_enum; pub mod entry; pub mod enum_clike; pub mod enum_glob_use; pub mod enum_variants; pub mod eq_op; pub mod escape; pub mod eta_reduction; pub mod eval_order_dependence; pub mod format; pub mod formatting; pub mod functions; pub mod identity_op; pub mod if_let_redundant_pattern_matching; pub mod if_not_else; pub mod infinite_iter; pub mod is_unit_expr; pub mod items_after_statements; pub mod large_enum_variant; pub mod len_zero; pub mod let_if_seq; pub mod lifetimes; pub mod literal_digit_grouping; pub mod loops; pub mod map_clone; pub mod matches; pub mod mem_forget; pub mod methods; pub mod minmax; pub mod misc; pub mod misc_early; pub mod missing_doc; pub mod mut_mut; pub mod mut_reference; pub mod mutex_atomic; pub mod needless_bool; pub mod needless_borrow; pub mod needless_borrowed_ref; pub mod needless_continue; pub mod needless_pass_by_value; pub mod needless_update; pub mod neg_multiply; pub mod new_without_default; pub mod no_effect; pub mod non_expressive_names; pub mod ok_if_let; pub mod open_options; pub mod overflow_check_conditional; pub mod panic; pub mod partialeq_ne_impl; pub mod precedence; pub mod print; pub mod ptr; pub mod ranges; pub mod reference; pub mod regex; pub mod returns; pub mod serde_api; pub mod shadow; pub mod should_assert_eq; pub mod strings; pub mod swap; pub mod temporary_assignment; pub mod transmute; pub mod types; pub mod unicode; pub mod unsafe_removed_from_name; pub mod unused_io_amount; pub mod unused_label; pub mod use_self; pub mod vec; pub mod zero_div_zero; // end lints modules, do not remove this comment, it’s used in `update_lints` mod reexport { pub use syntax::ast::{Name, NodeId}; } #[cfg_attr(rustfmt, rustfmt_skip)] pub fn register_plugins(reg: &mut rustc_plugin::Registry) { let conf = match utils::conf::file_from_args(reg.args()) { Ok(file_name) => { // if the user specified a file, it must exist, otherwise default to `clippy.toml` but // do not require the file to exist let file_name = if let Some(file_name) = file_name { Some(file_name) } else { match utils::conf::lookup_conf_file() { Ok(path) => path, Err(error) => { reg.sess.struct_err(&format!("error reading Clippy's configuration file: {}", error)).emit(); None } } }; let (conf, errors) = utils::conf::read(file_name.as_ref().map(|p| p.as_ref())); // all conf errors are non-fatal, we just use the default conf in case of error for error in errors { reg.sess.struct_err(&format!("error reading Clippy's configuration file: {}", error)).emit(); } conf } Err((err, span)) => { reg.sess.struct_span_err(span, err) .span_note(span, "Clippy will use default configuration") .emit(); toml::from_str("").expect("we never error on empty config files") } }; let mut store = reg.sess.lint_store.borrow_mut(); store.register_removed( "extend_from_slice", "`.extend_from_slice(_)` is a faster way to extend a Vec by a slice", ); store.register_removed( "range_step_by_zero", "`iterator.step_by(0)` panics nowadays", ); store.register_removed( "unstable_as_slice", "`Vec::as_slice` has been stabilized in 1.7", ); store.register_removed( "unstable_as_mut_slice", "`Vec::as_mut_slice` has been stabilized in 1.7", ); store.register_removed( "str_to_string", "using `str::to_string` is common even today and specialization will likely happen soon", ); store.register_removed( "string_to_string", "using `string::to_string` is common even today and specialization will likely happen soon", ); // end deprecated lints, do not remove this comment, it’s used in `update_lints` reg.register_late_lint_pass(box serde_api::Serde); reg.register_early_lint_pass(box utils::internal_lints::Clippy); reg.register_late_lint_pass(box utils::internal_lints::LintWithoutLintPass::default()); reg.register_late_lint_pass(box utils::inspector::Pass); reg.register_late_lint_pass(box utils::author::Pass); reg.register_late_lint_pass(box types::TypePass); reg.register_late_lint_pass(box booleans::NonminimalBool); reg.register_late_lint_pass(box eq_op::EqOp); reg.register_early_lint_pass(box enum_variants::EnumVariantNames::new(conf.enum_variant_name_threshold)); reg.register_late_lint_pass(box enum_glob_use::EnumGlobUse); reg.register_late_lint_pass(box enum_clike::UnportableVariant); reg.register_late_lint_pass(box bit_mask::BitMask); reg.register_late_lint_pass(box ptr::PointerPass); reg.register_late_lint_pass(box needless_bool::NeedlessBool); reg.register_late_lint_pass(box needless_bool::BoolComparison); reg.register_late_lint_pass(box approx_const::Pass); reg.register_late_lint_pass(box misc::Pass); reg.register_early_lint_pass(box precedence::Precedence); reg.register_early_lint_pass(box is_unit_expr::UnitExpr); reg.register_early_lint_pass(box needless_continue::NeedlessContinue); reg.register_late_lint_pass(box eta_reduction::EtaPass); reg.register_late_lint_pass(box identity_op::IdentityOp); reg.register_early_lint_pass(box items_after_statements::ItemsAfterStatements); reg.register_late_lint_pass(box mut_mut::MutMut); reg.register_late_lint_pass(box mut_reference::UnnecessaryMutPassed); reg.register_late_lint_pass(box len_zero::LenZero); reg.register_late_lint_pass(box attrs::AttrPass); reg.register_early_lint_pass(box collapsible_if::CollapsibleIf); reg.register_late_lint_pass(box block_in_if_condition::BlockInIfCondition); reg.register_late_lint_pass(box unicode::Unicode); reg.register_late_lint_pass(box strings::StringAdd); reg.register_early_lint_pass(box returns::ReturnPass); reg.register_late_lint_pass(box methods::Pass); reg.register_late_lint_pass(box shadow::Pass); reg.register_late_lint_pass(box types::LetPass); reg.register_late_lint_pass(box types::UnitCmp); reg.register_late_lint_pass(box loops::Pass); reg.register_late_lint_pass(box lifetimes::LifetimePass); reg.register_late_lint_pass(box entry::HashMapLint); reg.register_late_lint_pass(box ranges::StepByZero); reg.register_late_lint_pass(box types::CastPass); reg.register_late_lint_pass(box types::TypeComplexityPass::new(conf.type_complexity_threshold)); reg.register_late_lint_pass(box matches::MatchPass); reg.register_late_lint_pass(box minmax::MinMaxPass); reg.register_late_lint_pass(box open_options::NonSensical); reg.register_late_lint_pass(box zero_div_zero::Pass); reg.register_late_lint_pass(box mutex_atomic::MutexAtomic); reg.register_late_lint_pass(box needless_update::Pass); reg.register_late_lint_pass(box needless_borrow::NeedlessBorrow); reg.register_late_lint_pass(box needless_borrowed_ref::NeedlessBorrowedRef); reg.register_late_lint_pass(box no_effect::Pass); reg.register_late_lint_pass(box map_clone::Pass); reg.register_late_lint_pass(box temporary_assignment::Pass); reg.register_late_lint_pass(box transmute::Transmute); reg.register_late_lint_pass( box cyclomatic_complexity::CyclomaticComplexity::new(conf.cyclomatic_complexity_threshold) ); reg.register_late_lint_pass(box escape::Pass{too_large_for_stack: conf.too_large_for_stack}); reg.register_early_lint_pass(box misc_early::MiscEarly); reg.register_late_lint_pass(box array_indexing::ArrayIndexing); reg.register_late_lint_pass(box panic::Pass); reg.register_late_lint_pass(box strings::StringLitAsBytes); reg.register_late_lint_pass(box derive::Derive); reg.register_late_lint_pass(box types::CharLitAsU8); reg.register_late_lint_pass(box print::Pass); reg.register_late_lint_pass(box vec::Pass); reg.register_early_lint_pass(box non_expressive_names::NonExpressiveNames { single_char_binding_names_threshold: conf.single_char_binding_names_threshold, }); reg.register_late_lint_pass(box drop_forget_ref::Pass); reg.register_late_lint_pass(box empty_enum::EmptyEnum); reg.register_late_lint_pass(box types::AbsurdExtremeComparisons); reg.register_late_lint_pass(box types::InvalidUpcastComparisons); reg.register_late_lint_pass(box regex::Pass::default()); reg.register_late_lint_pass(box copies::CopyAndPaste); reg.register_late_lint_pass(box format::Pass); reg.register_early_lint_pass(box formatting::Formatting); reg.register_late_lint_pass(box swap::Swap); reg.register_early_lint_pass(box if_not_else::IfNotElse); reg.register_late_lint_pass(box overflow_check_conditional::OverflowCheckConditional); reg.register_late_lint_pass(box unused_label::UnusedLabel); reg.register_late_lint_pass(box new_without_default::NewWithoutDefault); reg.register_late_lint_pass(box blacklisted_name::BlackListedName::new(conf.blacklisted_names)); reg.register_late_lint_pass(box functions::Functions::new(conf.too_many_arguments_threshold)); reg.register_early_lint_pass(box doc::Doc::new(conf.doc_valid_idents)); reg.register_late_lint_pass(box neg_multiply::NegMultiply); reg.register_early_lint_pass(box unsafe_removed_from_name::UnsafeNameRemoval); reg.register_late_lint_pass(box mem_forget::MemForget); reg.register_late_lint_pass(box arithmetic::Arithmetic::default()); reg.register_late_lint_pass(box assign_ops::AssignOps); reg.register_late_lint_pass(box let_if_seq::LetIfSeq); reg.register_late_lint_pass(box eval_order_dependence::EvalOrderDependence); reg.register_late_lint_pass(box missing_doc::MissingDoc::new()); reg.register_late_lint_pass(box ok_if_let::Pass); reg.register_late_lint_pass(box if_let_redundant_pattern_matching::Pass); reg.register_late_lint_pass(box partialeq_ne_impl::Pass); reg.register_early_lint_pass(box reference::Pass); reg.register_early_lint_pass(box double_parens::DoubleParens); reg.register_late_lint_pass(box unused_io_amount::UnusedIoAmount); reg.register_late_lint_pass(box large_enum_variant::LargeEnumVariant::new(conf.enum_variant_size_threshold)); reg.register_late_lint_pass(box should_assert_eq::ShouldAssertEq); reg.register_late_lint_pass(box needless_pass_by_value::NeedlessPassByValue); reg.register_early_lint_pass(box literal_digit_grouping::LiteralDigitGrouping); reg.register_late_lint_pass(box use_self::UseSelf); reg.register_late_lint_pass(box bytecount::ByteCount); reg.register_late_lint_pass(box infinite_iter::Pass); reg.register_lint_group("clippy_restrictions", vec![ arithmetic::FLOAT_ARITHMETIC, arithmetic::INTEGER_ARITHMETIC, array_indexing::INDEXING_SLICING, assign_ops::ASSIGN_OPS, ]); reg.register_lint_group("clippy_pedantic", vec![ booleans::NONMINIMAL_BOOL, empty_enum::EMPTY_ENUM, enum_glob_use::ENUM_GLOB_USE, enum_variants::PUB_ENUM_VARIANT_NAMES, enum_variants::STUTTER, if_not_else::IF_NOT_ELSE, infinite_iter::MAYBE_INFINITE_ITER, items_after_statements::ITEMS_AFTER_STATEMENTS, matches::SINGLE_MATCH_ELSE, mem_forget::MEM_FORGET, methods::FILTER_MAP, methods::OPTION_MAP_UNWRAP_OR, methods::OPTION_MAP_UNWRAP_OR_ELSE, methods::OPTION_UNWRAP_USED, methods::RESULT_UNWRAP_USED, methods::WRONG_PUB_SELF_CONVENTION, misc::USED_UNDERSCORE_BINDING, misc_early::UNSEPARATED_LITERAL_SUFFIX, missing_doc::MISSING_DOCS_IN_PRIVATE_ITEMS, mut_mut::MUT_MUT, mutex_atomic::MUTEX_INTEGER, non_expressive_names::SIMILAR_NAMES, print::PRINT_STDOUT, print::USE_DEBUG, shadow::SHADOW_REUSE, shadow::SHADOW_SAME, shadow::SHADOW_UNRELATED, strings::STRING_ADD, strings::STRING_ADD_ASSIGN, types::CAST_POSSIBLE_TRUNCATION, types::CAST_POSSIBLE_WRAP, types::CAST_PRECISION_LOSS, types::CAST_SIGN_LOSS, types::INVALID_UPCAST_COMPARISONS, unicode::NON_ASCII_LITERAL, unicode::UNICODE_NOT_NFC, use_self::USE_SELF, ]); reg.register_lint_group("clippy_internal", vec![ utils::internal_lints::CLIPPY_LINTS_INTERNAL, utils::internal_lints::LINT_WITHOUT_LINT_PASS, ]); reg.register_lint_group("clippy", vec![ approx_const::APPROX_CONSTANT, array_indexing::OUT_OF_BOUNDS_INDEXING, assign_ops::ASSIGN_OP_PATTERN, assign_ops::MISREFACTORED_ASSIGN_OP, attrs::DEPRECATED_SEMVER, attrs::INLINE_ALWAYS, attrs::USELESS_ATTRIBUTE, bit_mask::BAD_BIT_MASK, bit_mask::INEFFECTIVE_BIT_MASK, bit_mask::VERBOSE_BIT_MASK, blacklisted_name::BLACKLISTED_NAME, block_in_if_condition::BLOCK_IN_IF_CONDITION_EXPR, block_in_if_condition::BLOCK_IN_IF_CONDITION_STMT, booleans::LOGIC_BUG, bytecount::NAIVE_BYTECOUNT, collapsible_if::COLLAPSIBLE_IF, copies::IF_SAME_THEN_ELSE, copies::IFS_SAME_COND, copies::MATCH_SAME_ARMS, cyclomatic_complexity::CYCLOMATIC_COMPLEXITY, derive::DERIVE_HASH_XOR_EQ, derive::EXPL_IMPL_CLONE_ON_COPY, doc::DOC_MARKDOWN, double_parens::DOUBLE_PARENS, drop_forget_ref::DROP_COPY, drop_forget_ref::DROP_REF, drop_forget_ref::FORGET_COPY, drop_forget_ref::FORGET_REF, entry::MAP_ENTRY, enum_clike::ENUM_CLIKE_UNPORTABLE_VARIANT, enum_variants::ENUM_VARIANT_NAMES, enum_variants::MODULE_INCEPTION, eq_op::EQ_OP, eq_op::OP_REF, escape::BOXED_LOCAL, eta_reduction::REDUNDANT_CLOSURE, eval_order_dependence::DIVERGING_SUB_EXPRESSION, eval_order_dependence::EVAL_ORDER_DEPENDENCE, format::USELESS_FORMAT, formatting::POSSIBLE_MISSING_COMMA, formatting::SUSPICIOUS_ASSIGNMENT_FORMATTING, formatting::SUSPICIOUS_ELSE_FORMATTING, functions::NOT_UNSAFE_PTR_ARG_DEREF, functions::TOO_MANY_ARGUMENTS, identity_op::IDENTITY_OP, if_let_redundant_pattern_matching::IF_LET_REDUNDANT_PATTERN_MATCHING, infinite_iter::INFINITE_ITER, is_unit_expr::UNIT_EXPR, large_enum_variant::LARGE_ENUM_VARIANT, len_zero::LEN_WITHOUT_IS_EMPTY, len_zero::LEN_ZERO, let_if_seq::USELESS_LET_IF_SEQ, lifetimes::NEEDLESS_LIFETIMES, lifetimes::UNUSED_LIFETIMES, literal_digit_grouping::INCONSISTENT_DIGIT_GROUPING, literal_digit_grouping::LARGE_DIGIT_GROUPS, literal_digit_grouping::UNREADABLE_LITERAL, loops::EMPTY_LOOP, loops::EXPLICIT_COUNTER_LOOP, loops::EXPLICIT_INTO_ITER_LOOP, loops::EXPLICIT_ITER_LOOP, loops::FOR_KV_MAP, loops::FOR_LOOP_OVER_OPTION, loops::FOR_LOOP_OVER_RESULT, loops::ITER_NEXT_LOOP, loops::MANUAL_MEMCPY, loops::NEEDLESS_RANGE_LOOP, loops::NEVER_LOOP, loops::REVERSE_RANGE_LOOP, loops::UNUSED_COLLECT, loops::WHILE_LET_LOOP, loops::WHILE_LET_ON_ITERATOR, map_clone::MAP_CLONE, matches::MATCH_BOOL, matches::MATCH_OVERLAPPING_ARM, matches::MATCH_REF_PATS, matches::MATCH_WILD_ERR_ARM, matches::SINGLE_MATCH, methods::CHARS_LAST_CMP, methods::CHARS_NEXT_CMP, methods::CLONE_DOUBLE_REF, methods::CLONE_ON_COPY, methods::CLONE_ON_REF_PTR, methods::FILTER_NEXT, methods::GET_UNWRAP, methods::ITER_CLONED_COLLECT, methods::ITER_NTH, methods::ITER_SKIP_NEXT, methods::NEW_RET_NO_SELF, methods::OK_EXPECT, methods::OR_FUN_CALL, methods::SEARCH_IS_SOME, methods::SHOULD_IMPLEMENT_TRAIT, methods::SINGLE_CHAR_PATTERN, methods::STRING_EXTEND_CHARS, methods::TEMPORARY_CSTRING_AS_PTR, methods::WRONG_SELF_CONVENTION, minmax::MIN_MAX, misc::CMP_NAN, misc::CMP_OWNED, misc::FLOAT_CMP, misc::MODULO_ONE, misc::REDUNDANT_PATTERN, misc::SHORT_CIRCUIT_STATEMENT, misc::TOPLEVEL_REF_ARG, misc::ZERO_PTR, misc_early::BUILTIN_TYPE_SHADOW, misc_early::DOUBLE_NEG, misc_early::DUPLICATE_UNDERSCORE_ARGUMENT, misc_early::MIXED_CASE_HEX_LITERALS, misc_early::REDUNDANT_CLOSURE_CALL, misc_early::UNNEEDED_FIELD_PATTERN, misc_early::ZERO_PREFIXED_LITERAL, mut_reference::UNNECESSARY_MUT_PASSED, mutex_atomic::MUTEX_ATOMIC, needless_bool::BOOL_COMPARISON, needless_bool::NEEDLESS_BOOL, needless_borrow::NEEDLESS_BORROW, needless_borrowed_ref::NEEDLESS_BORROWED_REFERENCE, needless_continue::NEEDLESS_CONTINUE, needless_pass_by_value::NEEDLESS_PASS_BY_VALUE, needless_update::NEEDLESS_UPDATE, neg_multiply::NEG_MULTIPLY, new_without_default::NEW_WITHOUT_DEFAULT, new_without_default::NEW_WITHOUT_DEFAULT_DERIVE, no_effect::NO_EFFECT, no_effect::UNNECESSARY_OPERATION, non_expressive_names::MANY_SINGLE_CHAR_NAMES, ok_if_let::IF_LET_SOME_RESULT, open_options::NONSENSICAL_OPEN_OPTIONS, overflow_check_conditional::OVERFLOW_CHECK_CONDITIONAL, panic::PANIC_PARAMS, partialeq_ne_impl::PARTIALEQ_NE_IMPL, precedence::PRECEDENCE, print::PRINT_WITH_NEWLINE, ptr::CMP_NULL, ptr::MUT_FROM_REF, ptr::PTR_ARG, ranges::ITERATOR_STEP_BY_ZERO, ranges::RANGE_ZIP_WITH_LEN, reference::DEREF_ADDROF, regex::INVALID_REGEX, regex::REGEX_MACRO, regex::TRIVIAL_REGEX, returns::LET_AND_RETURN, returns::NEEDLESS_RETURN, serde_api::SERDE_API_MISUSE, should_assert_eq::SHOULD_ASSERT_EQ, strings::STRING_LIT_AS_BYTES, swap::ALMOST_SWAPPED, swap::MANUAL_SWAP, temporary_assignment::TEMPORARY_ASSIGNMENT, transmute::CROSSPOINTER_TRANSMUTE, transmute::TRANSMUTE_PTR_TO_REF, transmute::USELESS_TRANSMUTE, transmute::WRONG_TRANSMUTE, types::ABSURD_EXTREME_COMPARISONS, types::BORROWED_BOX, types::BOX_VEC, types::CAST_LOSSLESS, types::CHAR_LIT_AS_U8, types::LET_UNIT_VALUE, types::LINKEDLIST, types::TYPE_COMPLEXITY, types::UNIT_CMP, types::UNNECESSARY_CAST, unicode::ZERO_WIDTH_SPACE, unsafe_removed_from_name::UNSAFE_REMOVED_FROM_NAME, unused_io_amount::UNUSED_IO_AMOUNT, unused_label::UNUSED_LABEL, vec::USELESS_VEC, zero_div_zero::ZERO_DIVIDED_BY_ZERO, ]); } // only exists to let the dogfood integration test works. // Don't run clippy as an executable directly #[allow(dead_code, print_stdout)] fn main() { panic!("Please use the cargo-clippy executable"); }