| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| //! Lints in the Rust compiler. |
| //! |
| //! This currently only contains the definitions and implementations |
| //! of most of the lints that `rustc` supports directly, it does not |
| //! contain the infrastructure for defining/registering lints. That is |
| //! available in `rustc::lint` and `rustc_plugin` respectively. |
| //! |
| //! # Note |
| //! |
| //! This API is completely unstable and subject to change. |
| |
| #![crate_name = "rustc_lint"] |
| #![unstable(feature = "rustc_private", issue = "27812")] |
| #![crate_type = "dylib"] |
| #![crate_type = "rlib"] |
| #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png", |
| html_favicon_url = "https://doc.rust-lang.org/favicon.ico", |
| html_root_url = "https://doc.rust-lang.org/nightly/")] |
| #![deny(warnings)] |
| |
| #![cfg_attr(test, feature(test))] |
| #![feature(box_patterns)] |
| #![feature(box_syntax)] |
| #![feature(quote)] |
| #![feature(rustc_diagnostic_macros)] |
| #![feature(rustc_private)] |
| #![feature(slice_patterns)] |
| #![feature(staged_api)] |
| |
| extern crate syntax; |
| #[macro_use] |
| extern crate rustc; |
| #[macro_use] |
| extern crate log; |
| extern crate rustc_back; |
| extern crate rustc_const_eval; |
| extern crate syntax_pos; |
| |
| extern crate rustc_i128; |
| |
| pub use rustc::lint; |
| pub use rustc::middle; |
| pub use rustc::session; |
| pub use rustc::util; |
| |
| use session::Session; |
| use lint::LintId; |
| use lint::FutureIncompatibleInfo; |
| |
| mod bad_style; |
| mod builtin; |
| mod types; |
| mod unused; |
| |
| use bad_style::*; |
| use builtin::*; |
| use types::*; |
| use unused::*; |
| |
| /// Tell the `LintStore` about all the built-in lints (the ones |
| /// defined in this crate and the ones defined in |
| /// `rustc::lint::builtin`). |
| pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) { |
| macro_rules! add_builtin { |
| ($sess:ident, $($name:ident),*,) => ( |
| {$( |
| store.register_late_pass($sess, false, box $name); |
| )*} |
| ) |
| } |
| |
| macro_rules! add_early_builtin { |
| ($sess:ident, $($name:ident),*,) => ( |
| {$( |
| store.register_early_pass($sess, false, box $name); |
| )*} |
| ) |
| } |
| |
| macro_rules! add_builtin_with_new { |
| ($sess:ident, $($name:ident),*,) => ( |
| {$( |
| store.register_late_pass($sess, false, box $name::new()); |
| )*} |
| ) |
| } |
| |
| macro_rules! add_early_builtin_with_new { |
| ($sess:ident, $($name:ident),*,) => ( |
| {$( |
| store.register_early_pass($sess, false, box $name::new()); |
| )*} |
| ) |
| } |
| |
| macro_rules! add_lint_group { |
| ($sess:ident, $name:expr, $($lint:ident),*) => ( |
| store.register_group($sess, false, $name, vec![$(LintId::of($lint)),*]); |
| ) |
| } |
| |
| add_early_builtin!(sess, |
| UnusedParens, |
| UnusedImportBraces, |
| ); |
| |
| add_early_builtin_with_new!(sess, |
| DeprecatedAttr, |
| ); |
| |
| add_builtin!(sess, |
| HardwiredLints, |
| WhileTrue, |
| ImproperCTypes, |
| VariantSizeDifferences, |
| BoxPointers, |
| UnusedAttributes, |
| PathStatements, |
| UnusedResults, |
| NonCamelCaseTypes, |
| NonSnakeCase, |
| NonUpperCaseGlobals, |
| NonShorthandFieldPatterns, |
| UnusedUnsafe, |
| UnsafeCode, |
| UnusedMut, |
| UnusedAllocation, |
| MissingCopyImplementations, |
| UnstableFeatures, |
| UnconditionalRecursion, |
| InvalidNoMangleItems, |
| PluginAsLibrary, |
| MutableTransmutes, |
| UnionsWithDropFields, |
| ); |
| |
| add_builtin_with_new!(sess, |
| TypeLimits, |
| MissingDoc, |
| MissingDebugImplementations, |
| ); |
| |
| add_lint_group!(sess, |
| "bad_style", |
| NON_CAMEL_CASE_TYPES, |
| NON_SNAKE_CASE, |
| NON_UPPER_CASE_GLOBALS); |
| |
| add_lint_group!(sess, |
| "unused", |
| UNUSED_IMPORTS, |
| UNUSED_VARIABLES, |
| UNUSED_ASSIGNMENTS, |
| DEAD_CODE, |
| UNUSED_MUT, |
| UNREACHABLE_CODE, |
| UNREACHABLE_PATTERNS, |
| UNUSED_MUST_USE, |
| UNUSED_UNSAFE, |
| PATH_STATEMENTS, |
| UNUSED_ATTRIBUTES); |
| |
| // Guidelines for creating a future incompatibility lint: |
| // |
| // - Create a lint defaulting to warn as normal, with ideally the same error |
| // message you would normally give |
| // - Add a suitable reference, typically an RFC or tracking issue. Go ahead |
| // and include the full URL. |
| // - Later, change lint to error |
| // - Eventually, remove lint |
| store.register_future_incompatible(sess, |
| vec![ |
| FutureIncompatibleInfo { |
| id: LintId::of(PRIVATE_IN_PUBLIC), |
| reference: "issue #34537 <https://github.com/rust-lang/rust/issues/34537>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(INACCESSIBLE_EXTERN_CRATE), |
| reference: "issue #36886 <https://github.com/rust-lang/rust/issues/36886>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(INVALID_TYPE_PARAM_DEFAULT), |
| reference: "issue #36887 <https://github.com/rust-lang/rust/issues/36887>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(SUPER_OR_SELF_IN_GLOBAL_PATH), |
| reference: "issue #36888 <https://github.com/rust-lang/rust/issues/36888>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(TRANSMUTE_FROM_FN_ITEM_TYPES), |
| reference: "issue #19925 <https://github.com/rust-lang/rust/issues/19925>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(OVERLAPPING_INHERENT_IMPLS), |
| reference: "issue #36889 <https://github.com/rust-lang/rust/issues/36889>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(ILLEGAL_FLOATING_POINT_CONSTANT_PATTERN), |
| reference: "issue #36890 <https://github.com/rust-lang/rust/issues/36890>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(ILLEGAL_STRUCT_OR_ENUM_CONSTANT_PATTERN), |
| reference: "issue #36891 <https://github.com/rust-lang/rust/issues/36891>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(HR_LIFETIME_IN_ASSOC_TYPE), |
| reference: "issue #33685 <https://github.com/rust-lang/rust/issues/33685>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(LIFETIME_UNDERSCORE), |
| reference: "issue #36892 <https://github.com/rust-lang/rust/issues/36892>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(SAFE_EXTERN_STATICS), |
| reference: "issue #36247 <https://github.com/rust-lang/rust/issues/35112>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(PATTERNS_IN_FNS_WITHOUT_BODY), |
| reference: "issue #35203 <https://github.com/rust-lang/rust/issues/35203>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(EXTRA_REQUIREMENT_IN_IMPL), |
| reference: "issue #37166 <https://github.com/rust-lang/rust/issues/37166>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(LEGACY_DIRECTORY_OWNERSHIP), |
| reference: "issue #37872 <https://github.com/rust-lang/rust/issues/37872>", |
| }, |
| FutureIncompatibleInfo { |
| id: LintId::of(LEGACY_IMPORTS), |
| reference: "issue #38260 <https://github.com/rust-lang/rust/issues/38260>", |
| }, |
| ]); |
| |
| // Register renamed and removed lints |
| store.register_renamed("unknown_features", "unused_features"); |
| store.register_removed("unsigned_negation", |
| "replaced by negate_unsigned feature gate"); |
| store.register_removed("negate_unsigned", "cast a signed value instead"); |
| store.register_removed("raw_pointer_derive", "using derive with raw pointers is ok"); |
| // This was renamed to raw_pointer_derive, which was then removed, |
| // so it is also considered removed |
| store.register_removed("raw_pointer_deriving", |
| "using derive with raw pointers is ok"); |
| store.register_removed("drop_with_repr_extern", "drop flags have been removed"); |
| } |
