1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 //! Lints in the Rust compiler.
13 //! This currently only contains the definitions and implementations
14 //! of most of the lints that `rustc` supports directly, it does not
15 //! contain the infrastructure for defining/registering lints. That is
16 //! available in `rustc::lint` and `rustc::plugin` respectively.
20 //! This API is completely unstable and subject to change.
22 // Do not remove on snapshot creation. Needed for bootstrap. (Issue #22364)
23 #![cfg_attr(stage0, feature(custom_attribute))]
24 #![crate_name = "rustc_lint"]
25 #![unstable(feature = "rustc_private", issue = "27812")]
26 #![cfg_attr(stage0, staged_api)]
27 #![crate_type = "dylib"]
28 #![crate_type = "rlib"]
29 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
30 html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
31 html_root_url = "https://doc.rust-lang.org/nightly/")]
33 #![cfg_attr(test, feature(test))]
34 #![feature(box_patterns)]
35 #![feature(box_syntax)]
36 #![feature(num_bits_bytes)]
38 #![feature(rustc_diagnostic_macros)]
39 #![feature(rustc_private)]
40 #![feature(slice_patterns)]
41 #![feature(staged_api)]
49 extern crate rustc_front;
50 extern crate rustc_back;
52 pub use rustc::lint as lint;
53 pub use rustc::metadata as metadata;
54 pub use rustc::middle as middle;
55 pub use rustc::session as session;
56 pub use rustc::util as util;
71 /// Tell the `LintStore` about all the built-in lints (the ones
72 /// defined in this crate and the ones defined in
73 /// `rustc::lint::builtin`).
74 pub fn register_builtins(store: &mut lint::LintStore, sess: Option<&Session>) {
75 macro_rules! add_builtin {
76 ($sess:ident, $($name:ident),*,) => (
78 store.register_late_pass($sess, false, box $name);
83 macro_rules! add_early_builtin {
84 ($sess:ident, $($name:ident),*,) => (
86 store.register_early_pass($sess, false, box $name);
91 macro_rules! add_builtin_with_new {
92 ($sess:ident, $($name:ident),*,) => (
94 store.register_late_pass($sess, false, box $name::new());
99 macro_rules! add_lint_group {
100 ($sess:ident, $name:expr, $($lint:ident),*) => (
101 store.register_group($sess, false, $name, vec![$(LintId::of($lint)),*]);
105 add_early_builtin!(sess,
121 NonShorthandFieldPatterns,
126 MissingCopyImplementations,
129 UnconditionalRecursion,
130 InvalidNoMangleItems,
136 add_builtin_with_new!(sess,
139 MissingDebugImplementations,
142 add_lint_group!(sess, "bad_style",
143 NON_CAMEL_CASE_TYPES, NON_SNAKE_CASE, NON_UPPER_CASE_GLOBALS);
145 add_lint_group!(sess, "unused",
146 UNUSED_IMPORTS, UNUSED_VARIABLES, UNUSED_ASSIGNMENTS, DEAD_CODE,
147 UNUSED_MUT, UNREACHABLE_CODE, UNUSED_MUST_USE,
148 UNUSED_UNSAFE, PATH_STATEMENTS, UNUSED_ATTRIBUTES);
150 // We have one lint pass defined specially
151 store.register_late_pass(sess, false, box lint::GatherNodeLevels);
153 // Insert temporary renamings for a one-time deprecation
154 store.register_renamed("unknown_features", "unused_features");
156 store.register_removed("unsigned_negation", "replaced by negate_unsigned feature gate");