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-rw-r--r--crates/hir/src/lib.rs9
-rw-r--r--crates/hir_def/src/attr.rs4
-rw-r--r--crates/hir_expand/src/input.rs6
-rw-r--r--crates/ide/src/goto_definition.rs141
-rw-r--r--crates/ide_db/src/helpers/generated_lints.rs1040
-rw-r--r--xtask/src/codegen/gen_lint_completions.rs7
6 files changed, 878 insertions, 329 deletions
diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index b43d61d0e..c2b68a853 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -50,7 +50,6 @@ use hir_def::{
50 per_ns::PerNs, 50 per_ns::PerNs,
51 resolver::{HasResolver, Resolver}, 51 resolver::{HasResolver, Resolver},
52 src::HasSource as _, 52 src::HasSource as _,
53 type_ref::TraitRef,
54 AdtId, AssocContainerId, AssocItemId, AssocItemLoc, AttrDefId, ConstId, ConstParamId, 53 AdtId, AssocContainerId, AssocItemId, AssocItemLoc, AttrDefId, ConstId, ConstParamId,
55 DefWithBodyId, EnumId, FunctionId, GenericDefId, HasModule, ImplId, LifetimeParamId, 54 DefWithBodyId, EnumId, FunctionId, GenericDefId, HasModule, ImplId, LifetimeParamId,
56 LocalEnumVariantId, LocalFieldId, Lookup, ModuleId, StaticId, StructId, TraitId, TypeAliasId, 55 LocalEnumVariantId, LocalFieldId, Lookup, ModuleId, StaticId, StructId, TraitId, TypeAliasId,
@@ -1797,9 +1796,11 @@ impl Impl {
1797 } 1796 }
1798 1797
1799 // FIXME: the return type is wrong. This should be a hir version of 1798 // FIXME: the return type is wrong. This should be a hir version of
1800 // `TraitRef` (ie, resolved `TypeRef`). 1799 // `TraitRef` (to account for parameters and qualifiers)
1801 pub fn trait_(self, db: &dyn HirDatabase) -> Option<TraitRef> { 1800 pub fn trait_(self, db: &dyn HirDatabase) -> Option<Trait> {
1802 db.impl_data(self.id).target_trait.as_deref().cloned() 1801 let trait_ref = db.impl_trait(self.id)?.skip_binders().clone();
1802 let id = hir_ty::from_chalk_trait_id(trait_ref.trait_id);
1803 Some(Trait { id })
1803 } 1804 }
1804 1805
1805 pub fn self_ty(self, db: &dyn HirDatabase) -> Type { 1806 pub fn self_ty(self, db: &dyn HirDatabase) -> Type {
diff --git a/crates/hir_def/src/attr.rs b/crates/hir_def/src/attr.rs
index b7e72b790..3886b6c04 100644
--- a/crates/hir_def/src/attr.rs
+++ b/crates/hir_def/src/attr.rs
@@ -36,8 +36,8 @@ use crate::{
36pub struct Documentation(String); 36pub struct Documentation(String);
37 37
38impl Documentation { 38impl Documentation {
39 pub fn new(s: impl Into<String>) -> Self { 39 pub fn new(s: String) -> Self {
40 Documentation(s.into()) 40 Documentation(s)
41 } 41 }
42 42
43 pub fn as_str(&self) -> &str { 43 pub fn as_str(&self) -> &str {
diff --git a/crates/hir_expand/src/input.rs b/crates/hir_expand/src/input.rs
index 40116a479..82dc7f326 100644
--- a/crates/hir_expand/src/input.rs
+++ b/crates/hir_expand/src/input.rs
@@ -1,7 +1,7 @@
1//! Macro input conditioning. 1//! Macro input conditioning.
2 2
3use syntax::{ 3use syntax::{
4 ast::{self, AttrsOwner}, 4 ast::{self, make, AttrsOwner},
5 AstNode, SyntaxNode, 5 AstNode, SyntaxNode,
6}; 6};
7 7
@@ -61,7 +61,9 @@ fn remove_attr_invoc(item: ast::Item, attr_index: usize) -> ast::Item {
61 .attrs() 61 .attrs()
62 .nth(attr_index) 62 .nth(attr_index)
63 .unwrap_or_else(|| panic!("cannot find attribute #{}", attr_index)); 63 .unwrap_or_else(|| panic!("cannot find attribute #{}", attr_index));
64 attr.syntax().detach(); 64 let syntax_index = attr.syntax().index();
65 let ws = make::tokens::whitespace(&" ".repeat(u32::from(attr.syntax().text().len()) as usize));
66 item.syntax().splice_children(syntax_index..syntax_index + 1, vec![ws.into()]);
65 item 67 item
66} 68}
67 69
diff --git a/crates/ide/src/goto_definition.rs b/crates/ide/src/goto_definition.rs
index a04333e63..2d36c34e9 100644
--- a/crates/ide/src/goto_definition.rs
+++ b/crates/ide/src/goto_definition.rs
@@ -1,10 +1,15 @@
1use std::convert::TryInto;
2
1use either::Either; 3use either::Either;
2use hir::{InFile, Semantics}; 4use hir::{AsAssocItem, InFile, ModuleDef, Semantics};
3use ide_db::{ 5use ide_db::{
4 defs::{NameClass, NameRefClass}, 6 base_db::{AnchoredPath, FileId, FileLoader},
7 defs::{Definition, NameClass, NameRefClass},
5 RootDatabase, 8 RootDatabase,
6}; 9};
7use syntax::{ast, match_ast, AstNode, AstToken, SyntaxKind::*, SyntaxToken, TokenAtOffset, T}; 10use syntax::{
11 ast, match_ast, AstNode, AstToken, SyntaxKind::*, SyntaxToken, TextRange, TokenAtOffset, T,
12};
8 13
9use crate::{ 14use crate::{
10 display::TryToNav, 15 display::TryToNav,
@@ -32,7 +37,7 @@ pub(crate) fn goto_definition(
32 let original_token = pick_best(file.token_at_offset(position.offset))?; 37 let original_token = pick_best(file.token_at_offset(position.offset))?;
33 let token = sema.descend_into_macros(original_token.clone()); 38 let token = sema.descend_into_macros(original_token.clone());
34 let parent = token.parent()?; 39 let parent = token.parent()?;
35 if let Some(_) = ast::Comment::cast(token) { 40 if let Some(_) = ast::Comment::cast(token.clone()) {
36 let (attributes, def) = doc_attributes(&sema, &parent)?; 41 let (attributes, def) = doc_attributes(&sema, &parent)?;
37 42
38 let (docs, doc_mapping) = attributes.docs_with_rangemap(db)?; 43 let (docs, doc_mapping) = attributes.docs_with_rangemap(db)?;
@@ -45,7 +50,6 @@ pub(crate) fn goto_definition(
45 let nav = resolve_doc_path_for_def(db, def, &link, ns)?.try_to_nav(db)?; 50 let nav = resolve_doc_path_for_def(db, def, &link, ns)?.try_to_nav(db)?;
46 return Some(RangeInfo::new(original_token.text_range(), vec![nav])); 51 return Some(RangeInfo::new(original_token.text_range(), vec![nav]));
47 } 52 }
48
49 let nav = match_ast! { 53 let nav = match_ast! {
50 match parent { 54 match parent {
51 ast::NameRef(name_ref) => { 55 ast::NameRef(name_ref) => {
@@ -53,7 +57,8 @@ pub(crate) fn goto_definition(
53 }, 57 },
54 ast::Name(name) => { 58 ast::Name(name) => {
55 let def = NameClass::classify(&sema, &name)?.referenced_or_defined(sema.db); 59 let def = NameClass::classify(&sema, &name)?.referenced_or_defined(sema.db);
56 def.try_to_nav(sema.db) 60 try_find_trait_item_definition(&sema.db, &def)
61 .or_else(|| def.try_to_nav(sema.db))
57 }, 62 },
58 ast::Lifetime(lt) => if let Some(name_class) = NameClass::classify_lifetime(&sema, &lt) { 63 ast::Lifetime(lt) => if let Some(name_class) = NameClass::classify_lifetime(&sema, &lt) {
59 let def = name_class.referenced_or_defined(sema.db); 64 let def = name_class.referenced_or_defined(sema.db);
@@ -61,6 +66,7 @@ pub(crate) fn goto_definition(
61 } else { 66 } else {
62 reference_definition(&sema, Either::Left(&lt)) 67 reference_definition(&sema, Either::Left(&lt))
63 }, 68 },
69 ast::TokenTree(tt) => try_lookup_include_path(sema.db, tt, token, position.file_id),
64 _ => return None, 70 _ => return None,
65 } 71 }
66 }; 72 };
@@ -68,6 +74,60 @@ pub(crate) fn goto_definition(
68 Some(RangeInfo::new(original_token.text_range(), nav.into_iter().collect())) 74 Some(RangeInfo::new(original_token.text_range(), nav.into_iter().collect()))
69} 75}
70 76
77fn try_lookup_include_path(
78 db: &RootDatabase,
79 tt: ast::TokenTree,
80 token: SyntaxToken,
81 file_id: FileId,
82) -> Option<NavigationTarget> {
83 let path = ast::String::cast(token)?.value()?.into_owned();
84 let macro_call = tt.syntax().parent().and_then(ast::MacroCall::cast)?;
85 let name = macro_call.path()?.segment()?.name_ref()?;
86 if !matches!(&*name.text(), "include" | "include_str" | "include_bytes") {
87 return None;
88 }
89 let file_id = db.resolve_path(AnchoredPath { anchor: file_id, path: &path })?;
90 let size = db.file_text(file_id).len().try_into().ok()?;
91 Some(NavigationTarget {
92 file_id,
93 full_range: TextRange::new(0.into(), size),
94 name: path.into(),
95 focus_range: None,
96 kind: None,
97 container_name: None,
98 description: None,
99 docs: None,
100 })
101}
102
103/// finds the trait definition of an impl'd item
104/// e.g.
105/// ```rust
106/// trait A { fn a(); }
107/// struct S;
108/// impl A for S { fn a(); } // <-- on this function, will get the location of a() in the trait
109/// ```
110fn try_find_trait_item_definition(db: &RootDatabase, def: &Definition) -> Option<NavigationTarget> {
111 let name = def.name(db)?;
112 let assoc = match def {
113 Definition::ModuleDef(ModuleDef::Function(f)) => f.as_assoc_item(db),
114 Definition::ModuleDef(ModuleDef::Const(c)) => c.as_assoc_item(db),
115 Definition::ModuleDef(ModuleDef::TypeAlias(ty)) => ty.as_assoc_item(db),
116 _ => None,
117 }?;
118
119 let imp = match assoc.container(db) {
120 hir::AssocItemContainer::Impl(imp) => imp,
121 _ => return None,
122 };
123
124 let trait_ = imp.trait_(db)?;
125 trait_
126 .items(db)
127 .iter()
128 .find_map(|itm| (itm.name(db)? == name).then(|| itm.try_to_nav(db)).flatten())
129}
130
71fn pick_best(tokens: TokenAtOffset<SyntaxToken>) -> Option<SyntaxToken> { 131fn pick_best(tokens: TokenAtOffset<SyntaxToken>) -> Option<SyntaxToken> {
72 return tokens.max_by_key(priority); 132 return tokens.max_by_key(priority);
73 fn priority(n: &SyntaxToken) -> usize { 133 fn priority(n: &SyntaxToken) -> usize {
@@ -1216,4 +1276,73 @@ fn f(e: Enum) {
1216"#, 1276"#,
1217 ); 1277 );
1218 } 1278 }
1279
1280 #[test]
1281 fn goto_include() {
1282 check(
1283 r#"
1284//- /main.rs
1285fn main() {
1286 let str = include_str!("foo.txt$0");
1287}
1288//- /foo.txt
1289// empty
1290//^ file
1291"#,
1292 );
1293 }
1294
1295 #[test]
1296 fn goto_def_of_trait_impl_fn() {
1297 check(
1298 r#"
1299trait Twait {
1300 fn a();
1301 // ^
1302}
1303
1304struct Stwuct;
1305
1306impl Twait for Stwuct {
1307 fn a$0();
1308}
1309"#,
1310 );
1311 }
1312
1313 #[test]
1314 fn goto_def_of_trait_impl_const() {
1315 check(
1316 r#"
1317trait Twait {
1318 const NOMS: bool;
1319 // ^^^^
1320}
1321
1322struct Stwuct;
1323
1324impl Twait for Stwuct {
1325 const NOMS$0: bool = true;
1326}
1327"#,
1328 );
1329 }
1330
1331 #[test]
1332 fn goto_def_of_trait_impl_type_alias() {
1333 check(
1334 r#"
1335trait Twait {
1336 type IsBad;
1337 // ^^^^^
1338}
1339
1340struct Stwuct;
1341
1342impl Twait for Stwuct {
1343 type IsBad$0 = !;
1344}
1345"#,
1346 );
1347 }
1219} 1348}
diff --git a/crates/ide_db/src/helpers/generated_lints.rs b/crates/ide_db/src/helpers/generated_lints.rs
index 6ccb0478e..55438749b 100644
--- a/crates/ide_db/src/helpers/generated_lints.rs
+++ b/crates/ide_db/src/helpers/generated_lints.rs
@@ -2419,50 +2419,6 @@ See also its documentation in [the rustdoc book][rustdoc-book-notable_trait].
2419"##, 2419"##,
2420 }, 2420 },
2421 Lint { 2421 Lint {
2422 label: "external_doc",
2423 description: r##"# `external_doc`
2424
2425The tracking issue for this feature is: [#44732]
2426
2427The `external_doc` feature allows the use of the `include` parameter to the `#[doc]` attribute, to
2428include external files in documentation. Use the attribute in place of, or in addition to, regular
2429doc comments and `#[doc]` attributes, and `rustdoc` will load the given file when it renders
2430documentation for your crate.
2431
2432With the following files in the same directory:
2433
2434`external-doc.md`:
2435
2436```markdown
2437# My Awesome Type
2438
2439This is the documentation for this spectacular type.
2440```
2441
2442`lib.rs`:
2443
2444```no_run (needs-external-files)
2445#![feature(external_doc)]
2446
2447#[doc(include = "external-doc.md")]
2448pub struct MyAwesomeType;
2449```
2450
2451`rustdoc` will load the file `external-doc.md` and use it as the documentation for the `MyAwesomeType`
2452struct.
2453
2454When locating files, `rustdoc` will base paths in the `src/` directory, as if they were alongside the
2455`lib.rs` for your crate. So if you want a `docs/` folder to live alongside the `src/` directory,
2456start your paths with `../docs/` for `rustdoc` to properly find the file.
2457
2458This feature was proposed in [RFC #1990] and initially implemented in PR [#44781].
2459
2460[#44732]: https://github.com/rust-lang/rust/issues/44732
2461[RFC #1990]: https://github.com/rust-lang/rfcs/pull/1990
2462[#44781]: https://github.com/rust-lang/rust/pull/44781
2463"##,
2464 },
2465 Lint {
2466 label: "fd", 2422 label: "fd",
2467 description: r##"# `fd` 2423 description: r##"# `fd`
2468 2424
@@ -5070,7 +5026,10 @@ This feature is internal to the Rust compiler and is not intended for general us
5070pub const CLIPPY_LINTS: &[Lint] = &[ 5026pub const CLIPPY_LINTS: &[Lint] = &[
5071 Lint { 5027 Lint {
5072 label: "clippy::absurd_extreme_comparisons", 5028 label: "clippy::absurd_extreme_comparisons",
5073 description: r##"Checks for comparisons where one side of the relation is\neither the minimum or maximum value for its type and warns if it involves a\ncase that is always true or always false. Only integer and boolean types are\nchecked."##, 5029 description: r##"Checks for comparisons where one side of the relation is
5030either the minimum or maximum value for its type and warns if it involves a
5031case that is always true or always false. Only integer and boolean types are
5032checked."##,
5074 }, 5033 },
5075 Lint { 5034 Lint {
5076 label: "clippy::almost_swapped", 5035 label: "clippy::almost_swapped",
@@ -5078,11 +5037,24 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5078 }, 5037 },
5079 Lint { 5038 Lint {
5080 label: "clippy::approx_constant", 5039 label: "clippy::approx_constant",
5081 description: r##"Checks for floating point literals that approximate\nconstants which are defined in\n[`std::f32::consts`](https://doc.rust-lang.org/stable/std/f32/consts/#constants)\nor\n[`std::f64::consts`](https://doc.rust-lang.org/stable/std/f64/consts/#constants),\nrespectively, suggesting to use the predefined constant."##, 5040 description: r##"Checks for floating point literals that approximate
5041constants which are defined in
5042[`std::f32::consts`](https://doc.rust-lang.org/stable/std/f32/consts/#constants)
5043or
5044[`std::f64::consts`](https://doc.rust-lang.org/stable/std/f64/consts/#constants),
5045respectively, suggesting to use the predefined constant."##,
5082 }, 5046 },
5083 Lint { 5047 Lint {
5084 label: "clippy::as_conversions", 5048 label: "clippy::as_conversions",
5085 description: r##"Checks for usage of `as` conversions.\n\nNote that this lint is specialized in linting *every single* use of `as`\nregardless of whether good alternatives exist or not.\nIf you want more precise lints for `as`, please consider using these separate lints:\n`unnecessary_cast`, `cast_lossless/possible_truncation/possible_wrap/precision_loss/sign_loss`,\n`fn_to_numeric_cast(_with_truncation)`, `char_lit_as_u8`, `ref_to_mut` and `ptr_as_ptr`.\nThere is a good explanation the reason why this lint should work in this way and how it is useful\n[in this issue](https://github.com/rust-lang/rust-clippy/issues/5122)."##, 5049 description: r##"Checks for usage of `as` conversions.
5050
5051Note that this lint is specialized in linting *every single* use of `as`
5052regardless of whether good alternatives exist or not.
5053If you want more precise lints for `as`, please consider using these separate lints:
5054`unnecessary_cast`, `cast_lossless/possible_truncation/possible_wrap/precision_loss/sign_loss`,
5055`fn_to_numeric_cast(_with_truncation)`, `char_lit_as_u8`, `ref_to_mut` and `ptr_as_ptr`.
5056There is a good explanation the reason why this lint should work in this way and how it is useful
5057[in this issue](https://github.com/rust-lang/rust-clippy/issues/5122)."##,
5086 }, 5058 },
5087 Lint { 5059 Lint {
5088 label: "clippy::assertions_on_constants", 5060 label: "clippy::assertions_on_constants",
@@ -5090,7 +5062,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5090 }, 5062 },
5091 Lint { 5063 Lint {
5092 label: "clippy::assign_op_pattern", 5064 label: "clippy::assign_op_pattern",
5093 description: r##"Checks for `a = a op b` or `a = b commutative_op a`\npatterns."##, 5065 description: r##"Checks for `a = a op b` or `a = b commutative_op a`
5066patterns."##,
5094 }, 5067 },
5095 Lint { 5068 Lint {
5096 label: "clippy::assign_ops", 5069 label: "clippy::assign_ops",
@@ -5098,27 +5071,46 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5098 }, 5071 },
5099 Lint { 5072 Lint {
5100 label: "clippy::async_yields_async", 5073 label: "clippy::async_yields_async",
5101 description: r##"Checks for async blocks that yield values of types\nthat can themselves be awaited."##, 5074 description: r##"Checks for async blocks that yield values of types
5075that can themselves be awaited."##,
5102 }, 5076 },
5103 Lint { 5077 Lint {
5104 label: "clippy::await_holding_lock", 5078 label: "clippy::await_holding_lock",
5105 description: r##"Checks for calls to await while holding a\nnon-async-aware MutexGuard."##, 5079 description: r##"Checks for calls to await while holding a
5080non-async-aware MutexGuard."##,
5106 }, 5081 },
5107 Lint { 5082 Lint {
5108 label: "clippy::await_holding_refcell_ref", 5083 label: "clippy::await_holding_refcell_ref",
5109 description: r##"Checks for calls to await while holding a\n`RefCell` `Ref` or `RefMut`."##, 5084 description: r##"Checks for calls to await while holding a
5085`RefCell` `Ref` or `RefMut`."##,
5110 }, 5086 },
5111 Lint { 5087 Lint {
5112 label: "clippy::bad_bit_mask", 5088 label: "clippy::bad_bit_mask",
5113 description: r##"Checks for incompatible bit masks in comparisons.\n\nThe formula for detecting if an expression of the type `_ <bit_op> m\n<cmp_op> c` (where `<bit_op>` is one of {`&`, `|`} and `<cmp_op>` is one of\n{`!=`, `>=`, `>`, `!=`, `>=`, `>`}) can be determined from the following\ntable:\n\n|Comparison |Bit Op|Example |is always|Formula |\n|------------|------|------------|---------|----------------------|\n|`==` or `!=`| `&` |`x & 2 == 3`|`false` |`c & m != c` |\n|`<` or `>=`| `&` |`x & 2 < 3` |`true` |`m < c` |\n|`>` or `<=`| `&` |`x & 1 > 1` |`false` |`m <= c` |\n|`==` or `!=`| `|` |`x | 1 == 0`|`false` |`c | m != c` |\n|`<` or `>=`| `|` |`x | 1 < 1` |`false` |`m >= c` |\n|`<=` or `>` | `|` |`x | 1 > 0` |`true` |`m > c` |"##, 5089 description: r##"Checks for incompatible bit masks in comparisons.
5090
5091The formula for detecting if an expression of the type `_ <bit_op> m
5092<cmp_op> c` (where `<bit_op>` is one of {`&`, `|`} and `<cmp_op>` is one of
5093{`!=`, `>=`, `>`, `!=`, `>=`, `>`}) can be determined from the following
5094table:
5095
5096|Comparison |Bit Op|Example |is always|Formula |
5097|------------|------|------------|---------|----------------------|
5098|`==` or `!=`| `&` |`x & 2 == 3`|`false` |`c & m != c` |
5099|`<` or `>=`| `&` |`x & 2 < 3` |`true` |`m < c` |
5100|`>` or `<=`| `&` |`x & 1 > 1` |`false` |`m <= c` |
5101|`==` or `!=`| `|` |`x | 1 == 0`|`false` |`c | m != c` |
5102|`<` or `>=`| `|` |`x | 1 < 1` |`false` |`m >= c` |
5103|`<=` or `>` | `|` |`x | 1 > 0` |`true` |`m > c` |"##,
5114 }, 5104 },
5115 Lint { 5105 Lint {
5116 label: "clippy::bind_instead_of_map", 5106 label: "clippy::bind_instead_of_map",
5117 description: r##"Checks for usage of `_.and_then(|x| Some(y))`, `_.and_then(|x| Ok(y))` or\n`_.or_else(|x| Err(y))`."##, 5107 description: r##"Checks for usage of `_.and_then(|x| Some(y))`, `_.and_then(|x| Ok(y))` or
5108`_.or_else(|x| Err(y))`."##,
5118 }, 5109 },
5119 Lint { 5110 Lint {
5120 label: "clippy::blacklisted_name", 5111 label: "clippy::blacklisted_name",
5121 description: r##"Checks for usage of blacklisted names for variables, such\nas `foo`."##, 5112 description: r##"Checks for usage of blacklisted names for variables, such
5113as `foo`."##,
5122 }, 5114 },
5123 Lint { 5115 Lint {
5124 label: "clippy::blanket_clippy_restriction_lints", 5116 label: "clippy::blanket_clippy_restriction_lints",
@@ -5126,7 +5118,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5126 }, 5118 },
5127 Lint { 5119 Lint {
5128 label: "clippy::blocks_in_if_conditions", 5120 label: "clippy::blocks_in_if_conditions",
5129 description: r##"Checks for `if` conditions that use blocks containing an\nexpression, statements or conditions that use closures with blocks."##, 5121 description: r##"Checks for `if` conditions that use blocks containing an
5122expression, statements or conditions that use closures with blocks."##,
5130 }, 5123 },
5131 Lint { 5124 Lint {
5132 label: "clippy::bool_assert_comparison", 5125 label: "clippy::bool_assert_comparison",
@@ -5134,27 +5127,34 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5134 }, 5127 },
5135 Lint { 5128 Lint {
5136 label: "clippy::bool_comparison", 5129 label: "clippy::bool_comparison",
5137 description: r##"Checks for expressions of the form `x == true`,\n`x != true` and order comparisons such as `x < true` (or vice versa) and\nsuggest using the variable directly."##, 5130 description: r##"Checks for expressions of the form `x == true`,
5131`x != true` and order comparisons such as `x < true` (or vice versa) and
5132suggest using the variable directly."##,
5138 }, 5133 },
5139 Lint { 5134 Lint {
5140 label: "clippy::borrow_interior_mutable_const", 5135 label: "clippy::borrow_interior_mutable_const",
5141 description: r##"Checks if `const` items which is interior mutable (e.g.,\ncontains a `Cell`, `Mutex`, `AtomicXxxx`, etc.) has been borrowed directly."##, 5136 description: r##"Checks if `const` items which is interior mutable (e.g.,
5137contains a `Cell`, `Mutex`, `AtomicXxxx`, etc.) has been borrowed directly."##,
5142 }, 5138 },
5143 Lint { 5139 Lint {
5144 label: "clippy::borrowed_box", 5140 label: "clippy::borrowed_box",
5145 description: r##"Checks for use of `&Box<T>` anywhere in the code.\nCheck the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##, 5141 description: r##"Checks for use of `&Box<T>` anywhere in the code.
5142Check the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##,
5146 }, 5143 },
5147 Lint { 5144 Lint {
5148 label: "clippy::box_vec", 5145 label: "clippy::box_vec",
5149 description: r##"Checks for use of `Box<Vec<_>>` anywhere in the code.\nCheck the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##, 5146 description: r##"Checks for use of `Box<Vec<_>>` anywhere in the code.
5147Check the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##,
5150 }, 5148 },
5151 Lint { 5149 Lint {
5152 label: "clippy::boxed_local", 5150 label: "clippy::boxed_local",
5153 description: r##"Checks for usage of `Box<T>` where an unboxed `T` would\nwork fine."##, 5151 description: r##"Checks for usage of `Box<T>` where an unboxed `T` would
5152work fine."##,
5154 }, 5153 },
5155 Lint { 5154 Lint {
5156 label: "clippy::branches_sharing_code", 5155 label: "clippy::branches_sharing_code",
5157 description: r##"Checks if the `if` and `else` block contain shared code that can be\nmoved out of the blocks."##, 5156 description: r##"Checks if the `if` and `else` block contain shared code that can be
5157moved out of the blocks."##,
5158 }, 5158 },
5159 Lint { 5159 Lint {
5160 label: "clippy::builtin_type_shadow", 5160 label: "clippy::builtin_type_shadow",
@@ -5166,31 +5166,48 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5166 }, 5166 },
5167 Lint { 5167 Lint {
5168 label: "clippy::cargo_common_metadata", 5168 label: "clippy::cargo_common_metadata",
5169 description: r##"Checks to see if all common metadata is defined in\n`Cargo.toml`. See: https://rust-lang-nursery.github.io/api-guidelines/documentation.html#cargotoml-includes-all-common-metadata-c-metadata"##, 5169 description: r##"Checks to see if all common metadata is defined in
5170`Cargo.toml`. See: https://rust-lang-nursery.github.io/api-guidelines/documentation.html#cargotoml-includes-all-common-metadata-c-metadata"##,
5170 }, 5171 },
5171 Lint { 5172 Lint {
5172 label: "clippy::case_sensitive_file_extension_comparisons", 5173 label: "clippy::case_sensitive_file_extension_comparisons",
5173 description: r##"Checks for calls to `ends_with` with possible file extensions\nand suggests to use a case-insensitive approach instead."##, 5174 description: r##"Checks for calls to `ends_with` with possible file extensions
5175and suggests to use a case-insensitive approach instead."##,
5174 }, 5176 },
5175 Lint { 5177 Lint {
5176 label: "clippy::cast_lossless", 5178 label: "clippy::cast_lossless",
5177 description: r##"Checks for casts between numerical types that may\nbe replaced by safe conversion functions."##, 5179 description: r##"Checks for casts between numerical types that may
5180be replaced by safe conversion functions."##,
5178 }, 5181 },
5179 Lint { 5182 Lint {
5180 label: "clippy::cast_possible_truncation", 5183 label: "clippy::cast_possible_truncation",
5181 description: r##"Checks for casts between numerical types that may\ntruncate large values. This is expected behavior, so the cast is `Allow` by\ndefault."##, 5184 description: r##"Checks for casts between numerical types that may
5185truncate large values. This is expected behavior, so the cast is `Allow` by
5186default."##,
5182 }, 5187 },
5183 Lint { 5188 Lint {
5184 label: "clippy::cast_possible_wrap", 5189 label: "clippy::cast_possible_wrap",
5185 description: r##"Checks for casts from an unsigned type to a signed type of\nthe same size. Performing such a cast is a 'no-op' for the compiler,\ni.e., nothing is changed at the bit level, and the binary representation of\nthe value is reinterpreted. This can cause wrapping if the value is too big\nfor the target signed type. However, the cast works as defined, so this lint\nis `Allow` by default."##, 5190 description: r##"Checks for casts from an unsigned type to a signed type of
5191the same size. Performing such a cast is a 'no-op' for the compiler,
5192i.e., nothing is changed at the bit level, and the binary representation of
5193the value is reinterpreted. This can cause wrapping if the value is too big
5194for the target signed type. However, the cast works as defined, so this lint
5195is `Allow` by default."##,
5186 }, 5196 },
5187 Lint { 5197 Lint {
5188 label: "clippy::cast_precision_loss", 5198 label: "clippy::cast_precision_loss",
5189 description: r##"Checks for casts from any numerical to a float type where\nthe receiving type cannot store all values from the original type without\nrounding errors. This possible rounding is to be expected, so this lint is\n`Allow` by default.\n\nBasically, this warns on casting any integer with 32 or more bits to `f32`\nor any 64-bit integer to `f64`."##, 5199 description: r##"Checks for casts from any numerical to a float type where
5200the receiving type cannot store all values from the original type without
5201rounding errors. This possible rounding is to be expected, so this lint is
5202`Allow` by default.
5203
5204Basically, this warns on casting any integer with 32 or more bits to `f32`
5205or any 64-bit integer to `f64`."##,
5190 }, 5206 },
5191 Lint { 5207 Lint {
5192 label: "clippy::cast_ptr_alignment", 5208 label: "clippy::cast_ptr_alignment",
5193 description: r##"Checks for casts, using `as` or `pointer::cast`,\nfrom a less-strictly-aligned pointer to a more-strictly-aligned pointer"##, 5209 description: r##"Checks for casts, using `as` or `pointer::cast`,
5210from a less-strictly-aligned pointer to a more-strictly-aligned pointer"##,
5194 }, 5211 },
5195 Lint { 5212 Lint {
5196 label: "clippy::cast_ref_to_mut", 5213 label: "clippy::cast_ref_to_mut",
@@ -5198,19 +5215,25 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5198 }, 5215 },
5199 Lint { 5216 Lint {
5200 label: "clippy::cast_sign_loss", 5217 label: "clippy::cast_sign_loss",
5201 description: r##"Checks for casts from a signed to an unsigned numerical\ntype. In this case, negative values wrap around to large positive values,\nwhich can be quite surprising in practice. However, as the cast works as\ndefined, this lint is `Allow` by default."##, 5218 description: r##"Checks for casts from a signed to an unsigned numerical
5219type. In this case, negative values wrap around to large positive values,
5220which can be quite surprising in practice. However, as the cast works as
5221defined, this lint is `Allow` by default."##,
5202 }, 5222 },
5203 Lint { 5223 Lint {
5204 label: "clippy::char_lit_as_u8", 5224 label: "clippy::char_lit_as_u8",
5205 description: r##"Checks for expressions where a character literal is cast\nto `u8` and suggests using a byte literal instead."##, 5225 description: r##"Checks for expressions where a character literal is cast
5226to `u8` and suggests using a byte literal instead."##,
5206 }, 5227 },
5207 Lint { 5228 Lint {
5208 label: "clippy::chars_last_cmp", 5229 label: "clippy::chars_last_cmp",
5209 description: r##"Checks for usage of `_.chars().last()` or\n`_.chars().next_back()` on a `str` to check if it ends with a given char."##, 5230 description: r##"Checks for usage of `_.chars().last()` or
5231`_.chars().next_back()` on a `str` to check if it ends with a given char."##,
5210 }, 5232 },
5211 Lint { 5233 Lint {
5212 label: "clippy::chars_next_cmp", 5234 label: "clippy::chars_next_cmp",
5213 description: r##"Checks for usage of `.chars().next()` on a `str` to check\nif it starts with a given char."##, 5235 description: r##"Checks for usage of `.chars().next()` on a `str` to check
5236if it starts with a given char."##,
5214 }, 5237 },
5215 Lint { 5238 Lint {
5216 label: "clippy::checked_conversions", 5239 label: "clippy::checked_conversions",
@@ -5226,11 +5249,14 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5226 }, 5249 },
5227 Lint { 5250 Lint {
5228 label: "clippy::clone_on_ref_ptr", 5251 label: "clippy::clone_on_ref_ptr",
5229 description: r##"Checks for usage of `.clone()` on a ref-counted pointer,\n(`Rc`, `Arc`, `rc::Weak`, or `sync::Weak`), and suggests calling Clone via unified\nfunction syntax instead (e.g., `Rc::clone(foo)`)."##, 5252 description: r##"Checks for usage of `.clone()` on a ref-counted pointer,
5253(`Rc`, `Arc`, `rc::Weak`, or `sync::Weak`), and suggests calling Clone via unified
5254function syntax instead (e.g., `Rc::clone(foo)`)."##,
5230 }, 5255 },
5231 Lint { 5256 Lint {
5232 label: "clippy::cloned_instead_of_copied", 5257 label: "clippy::cloned_instead_of_copied",
5233 description: r##"Checks for usages of `cloned()` on an `Iterator` or `Option` where\n`copied()` could be used instead."##, 5258 description: r##"Checks for usages of `cloned()` on an `Iterator` or `Option` where
5259`copied()` could be used instead."##,
5234 }, 5260 },
5235 Lint { label: "clippy::cmp_nan", description: r##"Checks for comparisons to NaN."## }, 5261 Lint { label: "clippy::cmp_nan", description: r##"Checks for comparisons to NaN."## },
5236 Lint { 5262 Lint {
@@ -5239,7 +5265,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5239 }, 5265 },
5240 Lint { 5266 Lint {
5241 label: "clippy::cmp_owned", 5267 label: "clippy::cmp_owned",
5242 description: r##"Checks for conversions to owned values just for the sake\nof a comparison."##, 5268 description: r##"Checks for conversions to owned values just for the sake
5269of a comparison."##,
5243 }, 5270 },
5244 Lint { 5271 Lint {
5245 label: "clippy::cognitive_complexity", 5272 label: "clippy::cognitive_complexity",
@@ -5247,27 +5274,36 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5247 }, 5274 },
5248 Lint { 5275 Lint {
5249 label: "clippy::collapsible_else_if", 5276 label: "clippy::collapsible_else_if",
5250 description: r##"Checks for collapsible `else { if ... }` expressions\nthat can be collapsed to `else if ...`."##, 5277 description: r##"Checks for collapsible `else { if ... }` expressions
5278that can be collapsed to `else if ...`."##,
5251 }, 5279 },
5252 Lint { 5280 Lint {
5253 label: "clippy::collapsible_if", 5281 label: "clippy::collapsible_if",
5254 description: r##"Checks for nested `if` statements which can be collapsed\nby `&&`-combining their conditions."##, 5282 description: r##"Checks for nested `if` statements which can be collapsed
5283by `&&`-combining their conditions."##,
5255 }, 5284 },
5256 Lint { 5285 Lint {
5257 label: "clippy::collapsible_match", 5286 label: "clippy::collapsible_match",
5258 description: r##"Finds nested `match` or `if let` expressions where the patterns may be \"collapsed\" together\nwithout adding any branches.\n\nNote that this lint is not intended to find _all_ cases where nested match patterns can be merged, but only\ncases where merging would most likely make the code more readable."##, 5287 description: r##"Finds nested `match` or `if let` expressions where the patterns may be collapsed together
5288without adding any branches.
5289
5290Note that this lint is not intended to find _all_ cases where nested match patterns can be merged, but only
5291cases where merging would most likely make the code more readable."##,
5259 }, 5292 },
5260 Lint { 5293 Lint {
5261 label: "clippy::comparison_chain", 5294 label: "clippy::comparison_chain",
5262 description: r##"Checks comparison chains written with `if` that can be\nrewritten with `match` and `cmp`."##, 5295 description: r##"Checks comparison chains written with `if` that can be
5296rewritten with `match` and `cmp`."##,
5263 }, 5297 },
5264 Lint { 5298 Lint {
5265 label: "clippy::comparison_to_empty", 5299 label: "clippy::comparison_to_empty",
5266 description: r##"Checks for comparing to an empty slice such as `\"\"` or `[]`,\nand suggests using `.is_empty()` where applicable."##, 5300 description: r##"Checks for comparing to an empty slice such as `` or `[]`,
5301and suggests using `.is_empty()` where applicable."##,
5267 }, 5302 },
5268 Lint { 5303 Lint {
5269 label: "clippy::copy_iterator", 5304 label: "clippy::copy_iterator",
5270 description: r##"Checks for types that implement `Copy` as well as\n`Iterator`."##, 5305 description: r##"Checks for types that implement `Copy` as well as
5306`Iterator`."##,
5271 }, 5307 },
5272 Lint { 5308 Lint {
5273 label: "clippy::create_dir", 5309 label: "clippy::create_dir",
@@ -5280,7 +5316,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5280 Lint { label: "clippy::dbg_macro", description: r##"Checks for usage of dbg!() macro."## }, 5316 Lint { label: "clippy::dbg_macro", description: r##"Checks for usage of dbg!() macro."## },
5281 Lint { 5317 Lint {
5282 label: "clippy::debug_assert_with_mut_call", 5318 label: "clippy::debug_assert_with_mut_call",
5283 description: r##"Checks for function/method calls with a mutable\nparameter in `debug_assert!`, `debug_assert_eq!` and `debug_assert_ne!` macros."##, 5319 description: r##"Checks for function/method calls with a mutable
5320parameter in `debug_assert!`, `debug_assert_eq!` and `debug_assert_ne!` macros."##,
5284 }, 5321 },
5285 Lint { 5322 Lint {
5286 label: "clippy::decimal_literal_representation", 5323 label: "clippy::decimal_literal_representation",
@@ -5288,11 +5325,19 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5288 }, 5325 },
5289 Lint { 5326 Lint {
5290 label: "clippy::declare_interior_mutable_const", 5327 label: "clippy::declare_interior_mutable_const",
5291 description: r##"Checks for declaration of `const` items which is interior\nmutable (e.g., contains a `Cell`, `Mutex`, `AtomicXxxx`, etc.)."##, 5328 description: r##"Checks for declaration of `const` items which is interior
5329mutable (e.g., contains a `Cell`, `Mutex`, `AtomicXxxx`, etc.)."##,
5292 }, 5330 },
5293 Lint { 5331 Lint {
5294 label: "clippy::default_numeric_fallback", 5332 label: "clippy::default_numeric_fallback",
5295 description: r##"Checks for usage of unconstrained numeric literals which may cause default numeric fallback in type\ninference.\n\nDefault numeric fallback means that if numeric types have not yet been bound to concrete\ntypes at the end of type inference, then integer type is bound to `i32`, and similarly\nfloating type is bound to `f64`.\n\nSee [RFC0212](https://github.com/rust-lang/rfcs/blob/master/text/0212-restore-int-fallback.md) for more information about the fallback."##, 5333 description: r##"Checks for usage of unconstrained numeric literals which may cause default numeric fallback in type
5334inference.
5335
5336Default numeric fallback means that if numeric types have not yet been bound to concrete
5337types at the end of type inference, then integer type is bound to `i32`, and similarly
5338floating type is bound to `f64`.
5339
5340See [RFC0212](https://github.com/rust-lang/rfcs/blob/master/text/0212-restore-int-fallback.md) for more information about the fallback."##,
5296 }, 5341 },
5297 Lint { 5342 Lint {
5298 label: "clippy::default_trait_access", 5343 label: "clippy::default_trait_access",
@@ -5300,11 +5345,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5300 }, 5345 },
5301 Lint { 5346 Lint {
5302 label: "clippy::deprecated_cfg_attr", 5347 label: "clippy::deprecated_cfg_attr",
5303 description: r##"Checks for `#[cfg_attr(rustfmt, rustfmt_skip)]` and suggests to replace it\nwith `#[rustfmt::skip]`."##, 5348 description: r##"Checks for `#[cfg_attr(rustfmt, rustfmt_skip)]` and suggests to replace it
5349with `#[rustfmt::skip]`."##,
5304 }, 5350 },
5305 Lint { 5351 Lint {
5306 label: "clippy::deprecated_semver", 5352 label: "clippy::deprecated_semver",
5307 description: r##"Checks for `#[deprecated]` annotations with a `since`\nfield that is not a valid semantic version."##, 5353 description: r##"Checks for `#[deprecated]` annotations with a `since`
5354field that is not a valid semantic version."##,
5308 }, 5355 },
5309 Lint { 5356 Lint {
5310 label: "clippy::deref_addrof", 5357 label: "clippy::deref_addrof",
@@ -5312,11 +5359,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5312 }, 5359 },
5313 Lint { 5360 Lint {
5314 label: "clippy::derive_hash_xor_eq", 5361 label: "clippy::derive_hash_xor_eq",
5315 description: r##"Checks for deriving `Hash` but implementing `PartialEq`\nexplicitly or vice versa."##, 5362 description: r##"Checks for deriving `Hash` but implementing `PartialEq`
5363explicitly or vice versa."##,
5316 }, 5364 },
5317 Lint { 5365 Lint {
5318 label: "clippy::derive_ord_xor_partial_ord", 5366 label: "clippy::derive_ord_xor_partial_ord",
5319 description: r##"Checks for deriving `Ord` but implementing `PartialOrd`\nexplicitly or vice versa."##, 5367 description: r##"Checks for deriving `Ord` but implementing `PartialOrd`
5368explicitly or vice versa."##,
5320 }, 5369 },
5321 Lint { 5370 Lint {
5322 label: "clippy::disallowed_method", 5371 label: "clippy::disallowed_method",
@@ -5324,11 +5373,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5324 }, 5373 },
5325 Lint { 5374 Lint {
5326 label: "clippy::diverging_sub_expression", 5375 label: "clippy::diverging_sub_expression",
5327 description: r##"Checks for diverging calls that are not match arms or\nstatements."##, 5376 description: r##"Checks for diverging calls that are not match arms or
5377statements."##,
5328 }, 5378 },
5329 Lint { 5379 Lint {
5330 label: "clippy::doc_markdown", 5380 label: "clippy::doc_markdown",
5331 description: r##"Checks for the presence of `_`, `::` or camel-case words\noutside ticks in documentation."##, 5381 description: r##"Checks for the presence of `_`, `::` or camel-case words
5382outside ticks in documentation."##,
5332 }, 5383 },
5333 Lint { 5384 Lint {
5334 label: "clippy::double_comparisons", 5385 label: "clippy::double_comparisons",
@@ -5336,7 +5387,11 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5336 }, 5387 },
5337 Lint { 5388 Lint {
5338 label: "clippy::double_must_use", 5389 label: "clippy::double_must_use",
5339 description: r##"Checks for a [`#[must_use]`] attribute without\nfurther information on functions and methods that return a type already\nmarked as `#[must_use]`.\n\n[`#[must_use]`]: https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute"##, 5390 description: r##"Checks for a [`#[must_use]`] attribute without
5391further information on functions and methods that return a type already
5392marked as `#[must_use]`.
5393
5394[`#[must_use]`]: https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute"##,
5340 }, 5395 },
5341 Lint { 5396 Lint {
5342 label: "clippy::double_neg", 5397 label: "clippy::double_neg",
@@ -5348,27 +5403,36 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5348 }, 5403 },
5349 Lint { 5404 Lint {
5350 label: "clippy::drop_copy", 5405 label: "clippy::drop_copy",
5351 description: r##"Checks for calls to `std::mem::drop` with a value\nthat derives the Copy trait"##, 5406 description: r##"Checks for calls to `std::mem::drop` with a value
5407that derives the Copy trait"##,
5352 }, 5408 },
5353 Lint { 5409 Lint {
5354 label: "clippy::drop_ref", 5410 label: "clippy::drop_ref",
5355 description: r##"Checks for calls to `std::mem::drop` with a reference\ninstead of an owned value."##, 5411 description: r##"Checks for calls to `std::mem::drop` with a reference
5412instead of an owned value."##,
5356 }, 5413 },
5357 Lint { 5414 Lint {
5358 label: "clippy::duplicate_underscore_argument", 5415 label: "clippy::duplicate_underscore_argument",
5359 description: r##"Checks for function arguments having the similar names\ndiffering by an underscore."##, 5416 description: r##"Checks for function arguments having the similar names
5417differing by an underscore."##,
5360 }, 5418 },
5361 Lint { 5419 Lint {
5362 label: "clippy::duration_subsec", 5420 label: "clippy::duration_subsec",
5363 description: r##"Checks for calculation of subsecond microseconds or milliseconds\nfrom other `Duration` methods."##, 5421 description: r##"Checks for calculation of subsecond microseconds or milliseconds
5422from other `Duration` methods."##,
5364 }, 5423 },
5365 Lint { 5424 Lint {
5366 label: "clippy::else_if_without_else", 5425 label: "clippy::else_if_without_else",
5367 description: r##"Checks for usage of if expressions with an `else if` branch,\nbut without a final `else` branch."##, 5426 description: r##"Checks for usage of if expressions with an `else if` branch,
5427but without a final `else` branch."##,
5368 }, 5428 },
5369 Lint { 5429 Lint {
5370 label: "clippy::empty_enum", 5430 label: "clippy::empty_enum",
5371 description: r##"Checks for `enum`s with no variants.\n\nAs of this writing, the `never_type` is still a\nnightly-only experimental API. Therefore, this lint is only triggered\nif the `never_type` is enabled."##, 5431 description: r##"Checks for `enum`s with no variants.
5432
5433As of this writing, the `never_type` is still a
5434nightly-only experimental API. Therefore, this lint is only triggered
5435if the `never_type` is enabled."##,
5372 }, 5436 },
5373 Lint { 5437 Lint {
5374 label: "clippy::empty_line_after_outer_attr", 5438 label: "clippy::empty_line_after_outer_attr",
@@ -5377,16 +5441,20 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5377 Lint { label: "clippy::empty_loop", description: r##"Checks for empty `loop` expressions."## }, 5441 Lint { label: "clippy::empty_loop", description: r##"Checks for empty `loop` expressions."## },
5378 Lint { 5442 Lint {
5379 label: "clippy::enum_clike_unportable_variant", 5443 label: "clippy::enum_clike_unportable_variant",
5380 description: r##"Checks for C-like enumerations that are\n`repr(isize/usize)` and have values that don't fit into an `i32`."##, 5444 description: r##"Checks for C-like enumerations that are
5445`repr(isize/usize)` and have values that don't fit into an `i32`."##,
5381 }, 5446 },
5382 Lint { label: "clippy::enum_glob_use", description: r##"Checks for `use Enum::*`."## }, 5447 Lint { label: "clippy::enum_glob_use", description: r##"Checks for `use Enum::*`."## },
5383 Lint { 5448 Lint {
5384 label: "clippy::enum_variant_names", 5449 label: "clippy::enum_variant_names",
5385 description: r##"Detects enumeration variants that are prefixed or suffixed\nby the same characters."##, 5450 description: r##"Detects enumeration variants that are prefixed or suffixed
5451by the same characters."##,
5386 }, 5452 },
5387 Lint { 5453 Lint {
5388 label: "clippy::eq_op", 5454 label: "clippy::eq_op",
5389 description: r##"Checks for equal operands to comparison, logical and\nbitwise, difference and division binary operators (`==`, `>`, etc., `&&`,\n`||`, `&`, `|`, `^`, `-` and `/`)."##, 5455 description: r##"Checks for equal operands to comparison, logical and
5456bitwise, difference and division binary operators (`==`, `>`, etc., `&&`,
5457`||`, `&`, `|`, `^`, `-` and `/`)."##,
5390 }, 5458 },
5391 Lint { 5459 Lint {
5392 label: "clippy::erasing_op", 5460 label: "clippy::erasing_op",
@@ -5394,11 +5462,14 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5394 }, 5462 },
5395 Lint { 5463 Lint {
5396 label: "clippy::eval_order_dependence", 5464 label: "clippy::eval_order_dependence",
5397 description: r##"Checks for a read and a write to the same variable where\nwhether the read occurs before or after the write depends on the evaluation\norder of sub-expressions."##, 5465 description: r##"Checks for a read and a write to the same variable where
5466whether the read occurs before or after the write depends on the evaluation
5467order of sub-expressions."##,
5398 }, 5468 },
5399 Lint { 5469 Lint {
5400 label: "clippy::excessive_precision", 5470 label: "clippy::excessive_precision",
5401 description: r##"Checks for float literals with a precision greater\nthan that supported by the underlying type."##, 5471 description: r##"Checks for float literals with a precision greater
5472than that supported by the underlying type."##,
5402 }, 5473 },
5403 Lint { 5474 Lint {
5404 label: "clippy::exhaustive_enums", 5475 label: "clippy::exhaustive_enums",
@@ -5410,11 +5481,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5410 }, 5481 },
5411 Lint { 5482 Lint {
5412 label: "clippy::exit", 5483 label: "clippy::exit",
5413 description: r##"`exit()` terminates the program and doesn't provide a\nstack trace."##, 5484 description: r##"`exit()` terminates the program and doesn't provide a
5485stack trace."##,
5414 }, 5486 },
5415 Lint { 5487 Lint {
5416 label: "clippy::expect_fun_call", 5488 label: "clippy::expect_fun_call",
5417 description: r##"Checks for calls to `.expect(&format!(...))`, `.expect(foo(..))`,\netc., and suggests to use `unwrap_or_else` instead"##, 5489 description: r##"Checks for calls to `.expect(&format!(...))`, `.expect(foo(..))`,
5490etc., and suggests to use `unwrap_or_else` instead"##,
5418 }, 5491 },
5419 Lint { 5492 Lint {
5420 label: "clippy::expect_used", 5493 label: "clippy::expect_used",
@@ -5422,11 +5495,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5422 }, 5495 },
5423 Lint { 5496 Lint {
5424 label: "clippy::expl_impl_clone_on_copy", 5497 label: "clippy::expl_impl_clone_on_copy",
5425 description: r##"Checks for explicit `Clone` implementations for `Copy`\ntypes."##, 5498 description: r##"Checks for explicit `Clone` implementations for `Copy`
5499types."##,
5426 }, 5500 },
5427 Lint { 5501 Lint {
5428 label: "clippy::explicit_counter_loop", 5502 label: "clippy::explicit_counter_loop",
5429 description: r##"Checks `for` loops over slices with an explicit counter\nand suggests the use of `.enumerate()`."##, 5503 description: r##"Checks `for` loops over slices with an explicit counter
5504and suggests the use of `.enumerate()`."##,
5430 }, 5505 },
5431 Lint { 5506 Lint {
5432 label: "clippy::explicit_deref_methods", 5507 label: "clippy::explicit_deref_methods",
@@ -5434,15 +5509,18 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5434 }, 5509 },
5435 Lint { 5510 Lint {
5436 label: "clippy::explicit_into_iter_loop", 5511 label: "clippy::explicit_into_iter_loop",
5437 description: r##"Checks for loops on `y.into_iter()` where `y` will do, and\nsuggests the latter."##, 5512 description: r##"Checks for loops on `y.into_iter()` where `y` will do, and
5513suggests the latter."##,
5438 }, 5514 },
5439 Lint { 5515 Lint {
5440 label: "clippy::explicit_iter_loop", 5516 label: "clippy::explicit_iter_loop",
5441 description: r##"Checks for loops on `x.iter()` where `&x` will do, and\nsuggests the latter."##, 5517 description: r##"Checks for loops on `x.iter()` where `&x` will do, and
5518suggests the latter."##,
5442 }, 5519 },
5443 Lint { 5520 Lint {
5444 label: "clippy::explicit_write", 5521 label: "clippy::explicit_write",
5445 description: r##"Checks for usage of `write!()` / `writeln()!` which can be\nreplaced with `(e)print!()` / `(e)println!()`"##, 5522 description: r##"Checks for usage of `write!()` / `writeln()!` which can be
5523replaced with `(e)print!()` / `(e)println!()`"##,
5446 }, 5524 },
5447 Lint { 5525 Lint {
5448 label: "clippy::extend_from_slice", 5526 label: "clippy::extend_from_slice",
@@ -5450,7 +5528,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5450 }, 5528 },
5451 Lint { 5529 Lint {
5452 label: "clippy::extra_unused_lifetimes", 5530 label: "clippy::extra_unused_lifetimes",
5453 description: r##"Checks for lifetimes in generics that are never used\nanywhere else."##, 5531 description: r##"Checks for lifetimes in generics that are never used
5532anywhere else."##,
5454 }, 5533 },
5455 Lint { 5534 Lint {
5456 label: "clippy::fallible_impl_from", 5535 label: "clippy::fallible_impl_from",
@@ -5458,7 +5537,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5458 }, 5537 },
5459 Lint { 5538 Lint {
5460 label: "clippy::field_reassign_with_default", 5539 label: "clippy::field_reassign_with_default",
5461 description: r##"Checks for immediate reassignment of fields initialized\nwith Default::default()."##, 5540 description: r##"Checks for immediate reassignment of fields initialized
5541with Default::default()."##,
5462 }, 5542 },
5463 Lint { 5543 Lint {
5464 label: "clippy::filetype_is_file", 5544 label: "clippy::filetype_is_file",
@@ -5487,20 +5567,26 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5487 }, 5567 },
5488 Lint { 5568 Lint {
5489 label: "clippy::flat_map_option", 5569 label: "clippy::flat_map_option",
5490 description: r##"Checks for usages of `Iterator::flat_map()` where `filter_map()` could be\nused instead."##, 5570 description: r##"Checks for usages of `Iterator::flat_map()` where `filter_map()` could be
5571used instead."##,
5491 }, 5572 },
5492 Lint { label: "clippy::float_arithmetic", description: r##"Checks for float arithmetic."## }, 5573 Lint { label: "clippy::float_arithmetic", description: r##"Checks for float arithmetic."## },
5493 Lint { 5574 Lint {
5494 label: "clippy::float_cmp", 5575 label: "clippy::float_cmp",
5495 description: r##"Checks for (in-)equality comparisons on floating-point\nvalues (apart from zero), except in functions called `*eq*` (which probably\nimplement equality for a type involving floats)."##, 5576 description: r##"Checks for (in-)equality comparisons on floating-point
5577values (apart from zero), except in functions called `*eq*` (which probably
5578implement equality for a type involving floats)."##,
5496 }, 5579 },
5497 Lint { 5580 Lint {
5498 label: "clippy::float_cmp_const", 5581 label: "clippy::float_cmp_const",
5499 description: r##"Checks for (in-)equality comparisons on floating-point\nvalue and constant, except in functions called `*eq*` (which probably\nimplement equality for a type involving floats)."##, 5582 description: r##"Checks for (in-)equality comparisons on floating-point
5583value and constant, except in functions called `*eq*` (which probably
5584implement equality for a type involving floats)."##,
5500 }, 5585 },
5501 Lint { 5586 Lint {
5502 label: "clippy::float_equality_without_abs", 5587 label: "clippy::float_equality_without_abs",
5503 description: r##"Checks for statements of the form `(a - b) < f32::EPSILON` or\n`(a - b) < f64::EPSILON`. Notes the missing `.abs()`."##, 5588 description: r##"Checks for statements of the form `(a - b) < f32::EPSILON` or
5589`(a - b) < f64::EPSILON`. Notes the missing `.abs()`."##,
5504 }, 5590 },
5505 Lint { 5591 Lint {
5506 label: "clippy::fn_address_comparisons", 5592 label: "clippy::fn_address_comparisons",
@@ -5508,7 +5594,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5508 }, 5594 },
5509 Lint { 5595 Lint {
5510 label: "clippy::fn_params_excessive_bools", 5596 label: "clippy::fn_params_excessive_bools",
5511 description: r##"Checks for excessive use of\nbools in function definitions."##, 5597 description: r##"Checks for excessive use of
5598bools in function definitions."##,
5512 }, 5599 },
5513 Lint { 5600 Lint {
5514 label: "clippy::fn_to_numeric_cast", 5601 label: "clippy::fn_to_numeric_cast",
@@ -5516,11 +5603,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5516 }, 5603 },
5517 Lint { 5604 Lint {
5518 label: "clippy::fn_to_numeric_cast_with_truncation", 5605 label: "clippy::fn_to_numeric_cast_with_truncation",
5519 description: r##"Checks for casts of a function pointer to a numeric type not wide enough to\nstore address."##, 5606 description: r##"Checks for casts of a function pointer to a numeric type not wide enough to
5607store address."##,
5520 }, 5608 },
5521 Lint { 5609 Lint {
5522 label: "clippy::for_kv_map", 5610 label: "clippy::for_kv_map",
5523 description: r##"Checks for iterating a map (`HashMap` or `BTreeMap`) and\nignoring either the keys or values."##, 5611 description: r##"Checks for iterating a map (`HashMap` or `BTreeMap`) and
5612ignoring either the keys or values."##,
5524 }, 5613 },
5525 Lint { 5614 Lint {
5526 label: "clippy::for_loops_over_fallibles", 5615 label: "clippy::for_loops_over_fallibles",
@@ -5528,15 +5617,18 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5528 }, 5617 },
5529 Lint { 5618 Lint {
5530 label: "clippy::forget_copy", 5619 label: "clippy::forget_copy",
5531 description: r##"Checks for calls to `std::mem::forget` with a value that\nderives the Copy trait"##, 5620 description: r##"Checks for calls to `std::mem::forget` with a value that
5621derives the Copy trait"##,
5532 }, 5622 },
5533 Lint { 5623 Lint {
5534 label: "clippy::forget_ref", 5624 label: "clippy::forget_ref",
5535 description: r##"Checks for calls to `std::mem::forget` with a reference\ninstead of an owned value."##, 5625 description: r##"Checks for calls to `std::mem::forget` with a reference
5626instead of an owned value."##,
5536 }, 5627 },
5537 Lint { 5628 Lint {
5538 label: "clippy::from_iter_instead_of_collect", 5629 label: "clippy::from_iter_instead_of_collect",
5539 description: r##"Checks for `from_iter()` function calls on types that implement the `FromIterator`\ntrait."##, 5630 description: r##"Checks for `from_iter()` function calls on types that implement the `FromIterator`
5631trait."##,
5540 }, 5632 },
5541 Lint { 5633 Lint {
5542 label: "clippy::from_over_into", 5634 label: "clippy::from_over_into",
@@ -5548,15 +5640,20 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5548 }, 5640 },
5549 Lint { 5641 Lint {
5550 label: "clippy::future_not_send", 5642 label: "clippy::future_not_send",
5551 description: r##"This lint requires Future implementations returned from\nfunctions and methods to implement the `Send` marker trait. It is mostly\nused by library authors (public and internal) that target an audience where\nmultithreaded executors are likely to be used for running these Futures."##, 5643 description: r##"This lint requires Future implementations returned from
5644functions and methods to implement the `Send` marker trait. It is mostly
5645used by library authors (public and internal) that target an audience where
5646multithreaded executors are likely to be used for running these Futures."##,
5552 }, 5647 },
5553 Lint { 5648 Lint {
5554 label: "clippy::get_last_with_len", 5649 label: "clippy::get_last_with_len",
5555 description: r##"Checks for using `x.get(x.len() - 1)` instead of\n`x.last()`."##, 5650 description: r##"Checks for using `x.get(x.len() - 1)` instead of
5651`x.last()`."##,
5556 }, 5652 },
5557 Lint { 5653 Lint {
5558 label: "clippy::get_unwrap", 5654 label: "clippy::get_unwrap",
5559 description: r##"Checks for use of `.get().unwrap()` (or\n`.get_mut().unwrap`) on a standard library type which implements `Index`"##, 5655 description: r##"Checks for use of `.get().unwrap()` (or
5656`.get_mut().unwrap`) on a standard library type which implements `Index`"##,
5560 }, 5657 },
5561 Lint { 5658 Lint {
5562 label: "clippy::identity_op", 5659 label: "clippy::identity_op",
@@ -5564,7 +5661,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5564 }, 5661 },
5565 Lint { 5662 Lint {
5566 label: "clippy::if_let_mutex", 5663 label: "clippy::if_let_mutex",
5567 description: r##"Checks for `Mutex::lock` calls in `if let` expression\nwith lock calls in any of the else blocks."##, 5664 description: r##"Checks for `Mutex::lock` calls in `if let` expression
5665with lock calls in any of the else blocks."##,
5568 }, 5666 },
5569 Lint { 5667 Lint {
5570 label: "clippy::if_let_redundant_pattern_matching", 5668 label: "clippy::if_let_redundant_pattern_matching",
@@ -5576,11 +5674,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5576 }, 5674 },
5577 Lint { 5675 Lint {
5578 label: "clippy::if_not_else", 5676 label: "clippy::if_not_else",
5579 description: r##"Checks for usage of `!` or `!=` in an if condition with an\nelse branch."##, 5677 description: r##"Checks for usage of `!` or `!=` in an if condition with an
5678else branch."##,
5580 }, 5679 },
5581 Lint { 5680 Lint {
5582 label: "clippy::if_same_then_else", 5681 label: "clippy::if_same_then_else",
5583 description: r##"Checks for `if/else` with the same body as the *then* part\nand the *else* part."##, 5682 description: r##"Checks for `if/else` with the same body as the *then* part
5683and the *else* part."##,
5584 }, 5684 },
5585 Lint { 5685 Lint {
5586 label: "clippy::if_then_some_else_none", 5686 label: "clippy::if_then_some_else_none",
@@ -5596,7 +5696,9 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5596 }, 5696 },
5597 Lint { 5697 Lint {
5598 label: "clippy::implicit_hasher", 5698 label: "clippy::implicit_hasher",
5599 description: r##"Checks for public `impl` or `fn` missing generalization\nover different hashers and implicitly defaulting to the default hashing\nalgorithm (`SipHash`)."##, 5699 description: r##"Checks for public `impl` or `fn` missing generalization
5700over different hashers and implicitly defaulting to the default hashing
5701algorithm (`SipHash`)."##,
5600 }, 5702 },
5601 Lint { 5703 Lint {
5602 label: "clippy::implicit_return", 5704 label: "clippy::implicit_return",
@@ -5608,31 +5710,47 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5608 }, 5710 },
5609 Lint { 5711 Lint {
5610 label: "clippy::imprecise_flops", 5712 label: "clippy::imprecise_flops",
5611 description: r##"Looks for floating-point expressions that\ncan be expressed using built-in methods to improve accuracy\nat the cost of performance."##, 5713 description: r##"Looks for floating-point expressions that
5714can be expressed using built-in methods to improve accuracy
5715at the cost of performance."##,
5612 }, 5716 },
5613 Lint { 5717 Lint {
5614 label: "clippy::inconsistent_digit_grouping", 5718 label: "clippy::inconsistent_digit_grouping",
5615 description: r##"Warns if an integral or floating-point constant is\ngrouped inconsistently with underscores."##, 5719 description: r##"Warns if an integral or floating-point constant is
5720grouped inconsistently with underscores."##,
5616 }, 5721 },
5617 Lint { 5722 Lint {
5618 label: "clippy::inconsistent_struct_constructor", 5723 label: "clippy::inconsistent_struct_constructor",
5619 description: r##"Checks for struct constructors where all fields are shorthand and\nthe order of the field init shorthand in the constructor is inconsistent\nwith the order in the struct definition."##, 5724 description: r##"Checks for struct constructors where all fields are shorthand and
5725the order of the field init shorthand in the constructor is inconsistent
5726with the order in the struct definition."##,
5620 }, 5727 },
5621 Lint { 5728 Lint {
5622 label: "clippy::indexing_slicing", 5729 label: "clippy::indexing_slicing",
5623 description: r##"Checks for usage of indexing or slicing. Arrays are special cases, this lint\ndoes report on arrays if we can tell that slicing operations are in bounds and does not\nlint on constant `usize` indexing on arrays because that is handled by rustc's `const_err` lint."##, 5730 description: r##"Checks for usage of indexing or slicing. Arrays are special cases, this lint
5731does report on arrays if we can tell that slicing operations are in bounds and does not
5732lint on constant `usize` indexing on arrays because that is handled by rustc's `const_err` lint."##,
5624 }, 5733 },
5625 Lint { 5734 Lint {
5626 label: "clippy::ineffective_bit_mask", 5735 label: "clippy::ineffective_bit_mask",
5627 description: r##"Checks for bit masks in comparisons which can be removed\nwithout changing the outcome. The basic structure can be seen in the\nfollowing table:\n\n|Comparison| Bit Op |Example |equals |\n|----------|---------|-----------|-------|\n|`>` / `<=`|`|` / `^`|`x | 2 > 3`|`x > 3`|\n|`<` / `>=`|`|` / `^`|`x ^ 1 < 4`|`x < 4`|"##, 5736 description: r##"Checks for bit masks in comparisons which can be removed
5737without changing the outcome. The basic structure can be seen in the
5738following table:
5739
5740|Comparison| Bit Op |Example |equals |
5741|----------|---------|-----------|-------|
5742|`>` / `<=`|`|` / `^`|`x | 2 > 3`|`x > 3`|
5743|`<` / `>=`|`|` / `^`|`x ^ 1 < 4`|`x < 4`|"##,
5628 }, 5744 },
5629 Lint { 5745 Lint {
5630 label: "clippy::inefficient_to_string", 5746 label: "clippy::inefficient_to_string",
5631 description: r##"Checks for usage of `.to_string()` on an `&&T` where\n`T` implements `ToString` directly (like `&&str` or `&&String`)."##, 5747 description: r##"Checks for usage of `.to_string()` on an `&&T` where
5748`T` implements `ToString` directly (like `&&str` or `&&String`)."##,
5632 }, 5749 },
5633 Lint { 5750 Lint {
5634 label: "clippy::infallible_destructuring_match", 5751 label: "clippy::infallible_destructuring_match",
5635 description: r##"Checks for matches being used to destructure a single-variant enum\nor tuple struct where a `let` will suffice."##, 5752 description: r##"Checks for matches being used to destructure a single-variant enum
5753or tuple struct where a `let` will suffice."##,
5636 }, 5754 },
5637 Lint { 5755 Lint {
5638 label: "clippy::infinite_iter", 5756 label: "clippy::infinite_iter",
@@ -5648,7 +5766,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5648 }, 5766 },
5649 Lint { 5767 Lint {
5650 label: "clippy::inline_always", 5768 label: "clippy::inline_always",
5651 description: r##"Checks for items annotated with `#[inline(always)]`,\nunless the annotated function is empty or simply panics."##, 5769 description: r##"Checks for items annotated with `#[inline(always)]`,
5770unless the annotated function is empty or simply panics."##,
5652 }, 5771 },
5653 Lint { 5772 Lint {
5654 label: "clippy::inline_asm_x86_att_syntax", 5773 label: "clippy::inline_asm_x86_att_syntax",
@@ -5672,16 +5791,25 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5672 }, 5791 },
5673 Lint { 5792 Lint {
5674 label: "clippy::integer_arithmetic", 5793 label: "clippy::integer_arithmetic",
5675 description: r##"Checks for integer arithmetic operations which could overflow or panic.\n\nSpecifically, checks for any operators (`+`, `-`, `*`, `<<`, etc) which are capable\nof overflowing according to the [Rust\nReference](https://doc.rust-lang.org/reference/expressions/operator-expr.html#overflow),\nor which can panic (`/`, `%`). No bounds analysis or sophisticated reasoning is\nattempted."##, 5794 description: r##"Checks for integer arithmetic operations which could overflow or panic.
5795
5796Specifically, checks for any operators (`+`, `-`, `*`, `<<`, etc) which are capable
5797of overflowing according to the [Rust
5798Reference](https://doc.rust-lang.org/reference/expressions/operator-expr.html#overflow),
5799or which can panic (`/`, `%`). No bounds analysis or sophisticated reasoning is
5800attempted."##,
5676 }, 5801 },
5677 Lint { label: "clippy::integer_division", description: r##"Checks for division of integers"## }, 5802 Lint { label: "clippy::integer_division", description: r##"Checks for division of integers"## },
5678 Lint { 5803 Lint {
5679 label: "clippy::into_iter_on_ref", 5804 label: "clippy::into_iter_on_ref",
5680 description: r##"Checks for `into_iter` calls on references which should be replaced by `iter`\nor `iter_mut`."##, 5805 description: r##"Checks for `into_iter` calls on references which should be replaced by `iter`
5806or `iter_mut`."##,
5681 }, 5807 },
5682 Lint { 5808 Lint {
5683 label: "clippy::invalid_atomic_ordering", 5809 label: "clippy::invalid_atomic_ordering",
5684 description: r##"Checks for usage of invalid atomic\nordering in atomic loads/stores/exchanges/updates and\nmemory fences."##, 5810 description: r##"Checks for usage of invalid atomic
5811ordering in atomic loads/stores/exchanges/updates and
5812memory fences."##,
5685 }, 5813 },
5686 Lint { 5814 Lint {
5687 label: "clippy::invalid_null_ptr_usage", 5815 label: "clippy::invalid_null_ptr_usage",
@@ -5689,11 +5817,15 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5689 }, 5817 },
5690 Lint { 5818 Lint {
5691 label: "clippy::invalid_regex", 5819 label: "clippy::invalid_regex",
5692 description: r##"Checks [regex](https://crates.io/crates/regex) creation\n(with `Regex::new`, `RegexBuilder::new`, or `RegexSet::new`) for correct\nregex syntax."##, 5820 description: r##"Checks [regex](https://crates.io/crates/regex) creation
5821(with `Regex::new`, `RegexBuilder::new`, or `RegexSet::new`) for correct
5822regex syntax."##,
5693 }, 5823 },
5694 Lint { 5824 Lint {
5695 label: "clippy::invalid_upcast_comparisons", 5825 label: "clippy::invalid_upcast_comparisons",
5696 description: r##"Checks for comparisons where the relation is always either\ntrue or false, but where one side has been upcast so that the comparison is\nnecessary. Only integer types are checked."##, 5826 description: r##"Checks for comparisons where the relation is always either
5827true or false, but where one side has been upcast so that the comparison is
5828necessary. Only integer types are checked."##,
5697 }, 5829 },
5698 Lint { 5830 Lint {
5699 label: "clippy::invisible_characters", 5831 label: "clippy::invisible_characters",
@@ -5705,7 +5837,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5705 }, 5837 },
5706 Lint { 5838 Lint {
5707 label: "clippy::iter_cloned_collect", 5839 label: "clippy::iter_cloned_collect",
5708 description: r##"Checks for the use of `.cloned().collect()` on slice to\ncreate a `Vec`."##, 5840 description: r##"Checks for the use of `.cloned().collect()` on slice to
5841create a `Vec`."##,
5709 }, 5842 },
5710 Lint { 5843 Lint {
5711 label: "clippy::iter_count", 5844 label: "clippy::iter_count",
@@ -5718,7 +5851,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5718 }, 5851 },
5719 Lint { 5852 Lint {
5720 label: "clippy::iter_nth", 5853 label: "clippy::iter_nth",
5721 description: r##"Checks for use of `.iter().nth()` (and the related\n`.iter_mut().nth()`) on standard library types with O(1) element access."##, 5854 description: r##"Checks for use of `.iter().nth()` (and the related
5855`.iter_mut().nth()`) on standard library types with O(1) element access."##,
5722 }, 5856 },
5723 Lint { 5857 Lint {
5724 label: "clippy::iter_nth_zero", 5858 label: "clippy::iter_nth_zero",
@@ -5734,19 +5868,24 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5734 }, 5868 },
5735 Lint { 5869 Lint {
5736 label: "clippy::just_underscores_and_digits", 5870 label: "clippy::just_underscores_and_digits",
5737 description: r##"Checks if you have variables whose name consists of just\nunderscores and digits."##, 5871 description: r##"Checks if you have variables whose name consists of just
5872underscores and digits."##,
5738 }, 5873 },
5739 Lint { 5874 Lint {
5740 label: "clippy::large_const_arrays", 5875 label: "clippy::large_const_arrays",
5741 description: r##"Checks for large `const` arrays that should\nbe defined as `static` instead."##, 5876 description: r##"Checks for large `const` arrays that should
5877be defined as `static` instead."##,
5742 }, 5878 },
5743 Lint { 5879 Lint {
5744 label: "clippy::large_digit_groups", 5880 label: "clippy::large_digit_groups",
5745 description: r##"Warns if the digits of an integral or floating-point\nconstant are grouped into groups that\nare too large."##, 5881 description: r##"Warns if the digits of an integral or floating-point
5882constant are grouped into groups that
5883are too large."##,
5746 }, 5884 },
5747 Lint { 5885 Lint {
5748 label: "clippy::large_enum_variant", 5886 label: "clippy::large_enum_variant",
5749 description: r##"Checks for large size differences between variants on\n`enum`s."##, 5887 description: r##"Checks for large size differences between variants on
5888`enum`s."##,
5750 }, 5889 },
5751 Lint { 5890 Lint {
5752 label: "clippy::large_stack_arrays", 5891 label: "clippy::large_stack_arrays",
@@ -5754,23 +5893,31 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5754 }, 5893 },
5755 Lint { 5894 Lint {
5756 label: "clippy::large_types_passed_by_value", 5895 label: "clippy::large_types_passed_by_value",
5757 description: r##"Checks for functions taking arguments by value, where\nthe argument type is `Copy` and large enough to be worth considering\npassing by reference. Does not trigger if the function is being exported,\nbecause that might induce API breakage, if the parameter is declared as mutable,\nor if the argument is a `self`."##, 5896 description: r##"Checks for functions taking arguments by value, where
5897the argument type is `Copy` and large enough to be worth considering
5898passing by reference. Does not trigger if the function is being exported,
5899because that might induce API breakage, if the parameter is declared as mutable,
5900or if the argument is a `self`."##,
5758 }, 5901 },
5759 Lint { 5902 Lint {
5760 label: "clippy::len_without_is_empty", 5903 label: "clippy::len_without_is_empty",
5761 description: r##"Checks for items that implement `.len()` but not\n`.is_empty()`."##, 5904 description: r##"Checks for items that implement `.len()` but not
5905`.is_empty()`."##,
5762 }, 5906 },
5763 Lint { 5907 Lint {
5764 label: "clippy::len_zero", 5908 label: "clippy::len_zero",
5765 description: r##"Checks for getting the length of something via `.len()`\njust to compare to zero, and suggests using `.is_empty()` where applicable."##, 5909 description: r##"Checks for getting the length of something via `.len()`
5910just to compare to zero, and suggests using `.is_empty()` where applicable."##,
5766 }, 5911 },
5767 Lint { 5912 Lint {
5768 label: "clippy::let_and_return", 5913 label: "clippy::let_and_return",
5769 description: r##"Checks for `let`-bindings, which are subsequently\nreturned."##, 5914 description: r##"Checks for `let`-bindings, which are subsequently
5915returned."##,
5770 }, 5916 },
5771 Lint { 5917 Lint {
5772 label: "clippy::let_underscore_drop", 5918 label: "clippy::let_underscore_drop",
5773 description: r##"Checks for `let _ = <expr>`\nwhere expr has a type that implements `Drop`"##, 5919 description: r##"Checks for `let _ = <expr>`
5920where expr has a type that implements `Drop`"##,
5774 }, 5921 },
5775 Lint { 5922 Lint {
5776 label: "clippy::let_underscore_lock", 5923 label: "clippy::let_underscore_lock",
@@ -5778,20 +5925,24 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5778 }, 5925 },
5779 Lint { 5926 Lint {
5780 label: "clippy::let_underscore_must_use", 5927 label: "clippy::let_underscore_must_use",
5781 description: r##"Checks for `let _ = <expr>`\nwhere expr is #[must_use]"##, 5928 description: r##"Checks for `let _ = <expr>`
5929where expr is #[must_use]"##,
5782 }, 5930 },
5783 Lint { label: "clippy::let_unit_value", description: r##"Checks for binding a unit value."## }, 5931 Lint { label: "clippy::let_unit_value", description: r##"Checks for binding a unit value."## },
5784 Lint { 5932 Lint {
5785 label: "clippy::linkedlist", 5933 label: "clippy::linkedlist",
5786 description: r##"Checks for usage of any `LinkedList`, suggesting to use a\n`Vec` or a `VecDeque` (formerly called `RingBuf`)."##, 5934 description: r##"Checks for usage of any `LinkedList`, suggesting to use a
5935`Vec` or a `VecDeque` (formerly called `RingBuf`)."##,
5787 }, 5936 },
5788 Lint { 5937 Lint {
5789 label: "clippy::logic_bug", 5938 label: "clippy::logic_bug",
5790 description: r##"Checks for boolean expressions that contain terminals that\ncan be eliminated."##, 5939 description: r##"Checks for boolean expressions that contain terminals that
5940can be eliminated."##,
5791 }, 5941 },
5792 Lint { 5942 Lint {
5793 label: "clippy::lossy_float_literal", 5943 label: "clippy::lossy_float_literal",
5794 description: r##"Checks for whole number float literals that\ncannot be represented as the underlying type without loss."##, 5944 description: r##"Checks for whole number float literals that
5945cannot be represented as the underlying type without loss."##,
5795 }, 5946 },
5796 Lint { 5947 Lint {
5797 label: "clippy::macro_use_imports", 5948 label: "clippy::macro_use_imports",
@@ -5807,15 +5958,18 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5807 }, 5958 },
5808 Lint { 5959 Lint {
5809 label: "clippy::manual_filter_map", 5960 label: "clippy::manual_filter_map",
5810 description: r##"Checks for usage of `_.filter(_).map(_)` that can be written more simply\nas `filter_map(_)`."##, 5961 description: r##"Checks for usage of `_.filter(_).map(_)` that can be written more simply
5962as `filter_map(_)`."##,
5811 }, 5963 },
5812 Lint { 5964 Lint {
5813 label: "clippy::manual_find_map", 5965 label: "clippy::manual_find_map",
5814 description: r##"Checks for usage of `_.find(_).map(_)` that can be written more simply\nas `find_map(_)`."##, 5966 description: r##"Checks for usage of `_.find(_).map(_)` that can be written more simply
5967as `find_map(_)`."##,
5815 }, 5968 },
5816 Lint { 5969 Lint {
5817 label: "clippy::manual_flatten", 5970 label: "clippy::manual_flatten",
5818 description: r##"Check for unnecessary `if let` usage in a for loop\nwhere only the `Some` or `Ok` variant of the iterator element is used."##, 5971 description: r##"Check for unnecessary `if let` usage in a for loop
5972where only the `Some` or `Ok` variant of the iterator element is used."##,
5819 }, 5973 },
5820 Lint { 5974 Lint {
5821 label: "clippy::manual_map", 5975 label: "clippy::manual_map",
@@ -5823,7 +5977,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5823 }, 5977 },
5824 Lint { 5978 Lint {
5825 label: "clippy::manual_memcpy", 5979 label: "clippy::manual_memcpy",
5826 description: r##"Checks for for-loops that manually copy items between\nslices that could be optimized by having a memcpy."##, 5980 description: r##"Checks for for-loops that manually copy items between
5981slices that could be optimized by having a memcpy."##,
5827 }, 5982 },
5828 Lint { 5983 Lint {
5829 label: "clippy::manual_non_exhaustive", 5984 label: "clippy::manual_non_exhaustive",
@@ -5835,7 +5990,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5835 }, 5990 },
5836 Lint { 5991 Lint {
5837 label: "clippy::manual_range_contains", 5992 label: "clippy::manual_range_contains",
5838 description: r##"Checks for expressions like `x >= 3 && x < 8` that could\nbe more readably expressed as `(3..8).contains(x)`."##, 5993 description: r##"Checks for expressions like `x >= 3 && x < 8` that could
5994be more readably expressed as `(3..8).contains(x)`."##,
5839 }, 5995 },
5840 Lint { 5996 Lint {
5841 label: "clippy::manual_saturating_arithmetic", 5997 label: "clippy::manual_saturating_arithmetic",
@@ -5847,7 +6003,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5847 }, 6003 },
5848 Lint { 6004 Lint {
5849 label: "clippy::manual_strip", 6005 label: "clippy::manual_strip",
5850 description: r##"Suggests using `strip_{prefix,suffix}` over `str::{starts,ends}_with` and slicing using\nthe pattern's length."##, 6006 description: r##"Suggests using `strip_{prefix,suffix}` over `str::{starts,ends}_with` and slicing using
6007the pattern's length."##,
5851 }, 6008 },
5852 Lint { label: "clippy::manual_swap", description: r##"Checks for manual swapping."## }, 6009 Lint { label: "clippy::manual_swap", description: r##"Checks for manual swapping."## },
5853 Lint { 6010 Lint {
@@ -5856,11 +6013,14 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5856 }, 6013 },
5857 Lint { 6014 Lint {
5858 label: "clippy::many_single_char_names", 6015 label: "clippy::many_single_char_names",
5859 description: r##"Checks for too many variables whose name consists of a\nsingle character."##, 6016 description: r##"Checks for too many variables whose name consists of a
6017single character."##,
5860 }, 6018 },
5861 Lint { 6019 Lint {
5862 label: "clippy::map_clone", 6020 label: "clippy::map_clone",
5863 description: r##"Checks for usage of `map(|x| x.clone())` or\ndereferencing closures for `Copy` types, on `Iterator` or `Option`,\nand suggests `cloned()` or `copied()` instead"##, 6021 description: r##"Checks for usage of `map(|x| x.clone())` or
6022dereferencing closures for `Copy` types, on `Iterator` or `Option`,
6023and suggests `cloned()` or `copied()` instead"##,
5864 }, 6024 },
5865 Lint { 6025 Lint {
5866 label: "clippy::map_collect_result_unit", 6026 label: "clippy::map_collect_result_unit",
@@ -5868,7 +6028,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5868 }, 6028 },
5869 Lint { 6029 Lint {
5870 label: "clippy::map_entry", 6030 label: "clippy::map_entry",
5871 description: r##"Checks for uses of `contains_key` + `insert` on `HashMap`\nor `BTreeMap`."##, 6031 description: r##"Checks for uses of `contains_key` + `insert` on `HashMap`
6032or `BTreeMap`."##,
5872 }, 6033 },
5873 Lint { 6034 Lint {
5874 label: "clippy::map_err_ignore", 6035 label: "clippy::map_err_ignore",
@@ -5884,19 +6045,23 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5884 }, 6045 },
5885 Lint { 6046 Lint {
5886 label: "clippy::map_unwrap_or", 6047 label: "clippy::map_unwrap_or",
5887 description: r##"Checks for usage of `option.map(_).unwrap_or(_)` or `option.map(_).unwrap_or_else(_)` or\n`result.map(_).unwrap_or_else(_)`."##, 6048 description: r##"Checks for usage of `option.map(_).unwrap_or(_)` or `option.map(_).unwrap_or_else(_)` or
6049`result.map(_).unwrap_or_else(_)`."##,
5888 }, 6050 },
5889 Lint { 6051 Lint {
5890 label: "clippy::match_as_ref", 6052 label: "clippy::match_as_ref",
5891 description: r##"Checks for match which is used to add a reference to an\n`Option` value."##, 6053 description: r##"Checks for match which is used to add a reference to an
6054`Option` value."##,
5892 }, 6055 },
5893 Lint { 6056 Lint {
5894 label: "clippy::match_bool", 6057 label: "clippy::match_bool",
5895 description: r##"Checks for matches where match expression is a `bool`. It\nsuggests to replace the expression with an `if...else` block."##, 6058 description: r##"Checks for matches where match expression is a `bool`. It
6059suggests to replace the expression with an `if...else` block."##,
5896 }, 6060 },
5897 Lint { 6061 Lint {
5898 label: "clippy::match_like_matches_macro", 6062 label: "clippy::match_like_matches_macro",
5899 description: r##"Checks for `match` or `if let` expressions producing a\n`bool` that could be written using `matches!`"##, 6063 description: r##"Checks for `match` or `if let` expressions producing a
6064`bool` that could be written using `matches!`"##,
5900 }, 6065 },
5901 Lint { 6066 Lint {
5902 label: "clippy::match_on_vec_items", 6067 label: "clippy::match_on_vec_items",
@@ -5908,7 +6073,9 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5908 }, 6073 },
5909 Lint { 6074 Lint {
5910 label: "clippy::match_ref_pats", 6075 label: "clippy::match_ref_pats",
5911 description: r##"Checks for matches where all arms match a reference,\nsuggesting to remove the reference and deref the matched expression\ninstead. It also checks for `if let &foo = bar` blocks."##, 6076 description: r##"Checks for matches where all arms match a reference,
6077suggesting to remove the reference and deref the matched expression
6078instead. It also checks for `if let &foo = bar` blocks."##,
5912 }, 6079 },
5913 Lint { 6080 Lint {
5914 label: "clippy::match_same_arms", 6081 label: "clippy::match_same_arms",
@@ -5920,7 +6087,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5920 }, 6087 },
5921 Lint { 6088 Lint {
5922 label: "clippy::match_wild_err_arm", 6089 label: "clippy::match_wild_err_arm",
5923 description: r##"Checks for arm which matches all errors with `Err(_)`\nand take drastic actions like `panic!`."##, 6090 description: r##"Checks for arm which matches all errors with `Err(_)`
6091and take drastic actions like `panic!`."##,
5924 }, 6092 },
5925 Lint { 6093 Lint {
5926 label: "clippy::match_wildcard_for_single_variants", 6094 label: "clippy::match_wildcard_for_single_variants",
@@ -5936,23 +6104,28 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5936 }, 6104 },
5937 Lint { 6105 Lint {
5938 label: "clippy::mem_forget", 6106 label: "clippy::mem_forget",
5939 description: r##"Checks for usage of `std::mem::forget(t)` where `t` is\n`Drop`."##, 6107 description: r##"Checks for usage of `std::mem::forget(t)` where `t` is
6108`Drop`."##,
5940 }, 6109 },
5941 Lint { 6110 Lint {
5942 label: "clippy::mem_replace_option_with_none", 6111 label: "clippy::mem_replace_option_with_none",
5943 description: r##"Checks for `mem::replace()` on an `Option` with\n`None`."##, 6112 description: r##"Checks for `mem::replace()` on an `Option` with
6113`None`."##,
5944 }, 6114 },
5945 Lint { 6115 Lint {
5946 label: "clippy::mem_replace_with_default", 6116 label: "clippy::mem_replace_with_default",
5947 description: r##"Checks for `std::mem::replace` on a value of type\n`T` with `T::default()`."##, 6117 description: r##"Checks for `std::mem::replace` on a value of type
6118`T` with `T::default()`."##,
5948 }, 6119 },
5949 Lint { 6120 Lint {
5950 label: "clippy::mem_replace_with_uninit", 6121 label: "clippy::mem_replace_with_uninit",
5951 description: r##"Checks for `mem::replace(&mut _, mem::uninitialized())`\nand `mem::replace(&mut _, mem::zeroed())`."##, 6122 description: r##"Checks for `mem::replace(&mut _, mem::uninitialized())`
6123and `mem::replace(&mut _, mem::zeroed())`."##,
5952 }, 6124 },
5953 Lint { 6125 Lint {
5954 label: "clippy::min_max", 6126 label: "clippy::min_max",
5955 description: r##"Checks for expressions where `std::cmp::min` and `max` are\nused to clamp values, but switched so that the result is constant."##, 6127 description: r##"Checks for expressions where `std::cmp::min` and `max` are
6128used to clamp values, but switched so that the result is constant."##,
5956 }, 6129 },
5957 Lint { 6130 Lint {
5958 label: "clippy::misaligned_transmute", 6131 label: "clippy::misaligned_transmute",
@@ -5972,23 +6145,28 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5972 }, 6145 },
5973 Lint { 6146 Lint {
5974 label: "clippy::missing_docs_in_private_items", 6147 label: "clippy::missing_docs_in_private_items",
5975 description: r##"Warns if there is missing doc for any documentable item\n(public or private)."##, 6148 description: r##"Warns if there is missing doc for any documentable item
6149(public or private)."##,
5976 }, 6150 },
5977 Lint { 6151 Lint {
5978 label: "clippy::missing_errors_doc", 6152 label: "clippy::missing_errors_doc",
5979 description: r##"Checks the doc comments of publicly visible functions that\nreturn a `Result` type and warns if there is no `# Errors` section."##, 6153 description: r##"Checks the doc comments of publicly visible functions that
6154return a `Result` type and warns if there is no `# Errors` section."##,
5980 }, 6155 },
5981 Lint { 6156 Lint {
5982 label: "clippy::missing_inline_in_public_items", 6157 label: "clippy::missing_inline_in_public_items",
5983 description: r##"it lints if an exported function, method, trait method with default impl,\nor trait method impl is not `#[inline]`."##, 6158 description: r##"it lints if an exported function, method, trait method with default impl,
6159or trait method impl is not `#[inline]`."##,
5984 }, 6160 },
5985 Lint { 6161 Lint {
5986 label: "clippy::missing_panics_doc", 6162 label: "clippy::missing_panics_doc",
5987 description: r##"Checks the doc comments of publicly visible functions that\nmay panic and warns if there is no `# Panics` section."##, 6163 description: r##"Checks the doc comments of publicly visible functions that
6164may panic and warns if there is no `# Panics` section."##,
5988 }, 6165 },
5989 Lint { 6166 Lint {
5990 label: "clippy::missing_safety_doc", 6167 label: "clippy::missing_safety_doc",
5991 description: r##"Checks for the doc comments of publicly visible\nunsafe functions and warns if there is no `# Safety` section."##, 6168 description: r##"Checks for the doc comments of publicly visible
6169unsafe functions and warns if there is no `# Safety` section."##,
5992 }, 6170 },
5993 Lint { 6171 Lint {
5994 label: "clippy::mistyped_literal_suffixes", 6172 label: "clippy::mistyped_literal_suffixes",
@@ -5996,24 +6174,29 @@ pub const CLIPPY_LINTS: &[Lint] = &[
5996 }, 6174 },
5997 Lint { 6175 Lint {
5998 label: "clippy::mixed_case_hex_literals", 6176 label: "clippy::mixed_case_hex_literals",
5999 description: r##"Warns on hexadecimal literals with mixed-case letter\ndigits."##, 6177 description: r##"Warns on hexadecimal literals with mixed-case letter
6178digits."##,
6000 }, 6179 },
6001 Lint { 6180 Lint {
6002 label: "clippy::module_inception", 6181 label: "clippy::module_inception",
6003 description: r##"Checks for modules that have the same name as their\nparent module"##, 6182 description: r##"Checks for modules that have the same name as their
6183parent module"##,
6004 }, 6184 },
6005 Lint { 6185 Lint {
6006 label: "clippy::module_name_repetitions", 6186 label: "clippy::module_name_repetitions",
6007 description: r##"Detects type names that are prefixed or suffixed by the\ncontaining module's name."##, 6187 description: r##"Detects type names that are prefixed or suffixed by the
6188containing module's name."##,
6008 }, 6189 },
6009 Lint { label: "clippy::modulo_arithmetic", description: r##"Checks for modulo arithmetic."## }, 6190 Lint { label: "clippy::modulo_arithmetic", description: r##"Checks for modulo arithmetic."## },
6010 Lint { 6191 Lint {
6011 label: "clippy::modulo_one", 6192 label: "clippy::modulo_one",
6012 description: r##"Checks for getting the remainder of a division by one or minus\none."##, 6193 description: r##"Checks for getting the remainder of a division by one or minus
6194one."##,
6013 }, 6195 },
6014 Lint { 6196 Lint {
6015 label: "clippy::multiple_crate_versions", 6197 label: "clippy::multiple_crate_versions",
6016 description: r##"Checks to see if multiple versions of a crate are being\nused."##, 6198 description: r##"Checks to see if multiple versions of a crate are being
6199used."##,
6017 }, 6200 },
6018 Lint { 6201 Lint {
6019 label: "clippy::multiple_inherent_impl", 6202 label: "clippy::multiple_inherent_impl",
@@ -6021,15 +6204,23 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6021 }, 6204 },
6022 Lint { 6205 Lint {
6023 label: "clippy::must_use_candidate", 6206 label: "clippy::must_use_candidate",
6024 description: r##"Checks for public functions that have no\n[`#[must_use]`] attribute, but return something not already marked\nmust-use, have no mutable arg and mutate no statics.\n\n[`#[must_use]`]: https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute"##, 6207 description: r##"Checks for public functions that have no
6208[`#[must_use]`] attribute, but return something not already marked
6209must-use, have no mutable arg and mutate no statics.
6210
6211[`#[must_use]`]: https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute"##,
6025 }, 6212 },
6026 Lint { 6213 Lint {
6027 label: "clippy::must_use_unit", 6214 label: "clippy::must_use_unit",
6028 description: r##"Checks for a [`#[must_use]`] attribute on\nunit-returning functions and methods.\n\n[`#[must_use]`]: https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute"##, 6215 description: r##"Checks for a [`#[must_use]`] attribute on
6216unit-returning functions and methods.
6217
6218[`#[must_use]`]: https://doc.rust-lang.org/reference/attributes/diagnostics.html#the-must_use-attribute"##,
6029 }, 6219 },
6030 Lint { 6220 Lint {
6031 label: "clippy::mut_from_ref", 6221 label: "clippy::mut_from_ref",
6032 description: r##"This lint checks for functions that take immutable\nreferences and return mutable ones."##, 6222 description: r##"This lint checks for functions that take immutable
6223references and return mutable ones."##,
6033 }, 6224 },
6034 Lint { 6225 Lint {
6035 label: "clippy::mut_mut", 6226 label: "clippy::mut_mut",
@@ -6053,36 +6244,46 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6053 }, 6244 },
6054 Lint { 6245 Lint {
6055 label: "clippy::mutex_integer", 6246 label: "clippy::mutex_integer",
6056 description: r##"Checks for usages of `Mutex<X>` where `X` is an integral\ntype."##, 6247 description: r##"Checks for usages of `Mutex<X>` where `X` is an integral
6248type."##,
6057 }, 6249 },
6058 Lint { label: "clippy::naive_bytecount", description: r##"Checks for naive byte counts"## }, 6250 Lint { label: "clippy::naive_bytecount", description: r##"Checks for naive byte counts"## },
6059 Lint { 6251 Lint {
6060 label: "clippy::needless_arbitrary_self_type", 6252 label: "clippy::needless_arbitrary_self_type",
6061 description: r##"The lint checks for `self` in fn parameters that\nspecify the `Self`-type explicitly"##, 6253 description: r##"The lint checks for `self` in fn parameters that
6254specify the `Self`-type explicitly"##,
6062 }, 6255 },
6063 Lint { 6256 Lint {
6064 label: "clippy::needless_bitwise_bool", 6257 label: "clippy::needless_bitwise_bool",
6065 description: r##"Checks for uses of bitwise and/or operators between booleans, where performance may be improved by using\na lazy and."##, 6258 description: r##"Checks for uses of bitwise and/or operators between booleans, where performance may be improved by using
6259a lazy and."##,
6066 }, 6260 },
6067 Lint { 6261 Lint {
6068 label: "clippy::needless_bool", 6262 label: "clippy::needless_bool",
6069 description: r##"Checks for expressions of the form `if c { true } else {\nfalse }` (or vice versa) and suggests using the condition directly."##, 6263 description: r##"Checks for expressions of the form `if c { true } else {
6264false }` (or vice versa) and suggests using the condition directly."##,
6070 }, 6265 },
6071 Lint { 6266 Lint {
6072 label: "clippy::needless_borrow", 6267 label: "clippy::needless_borrow",
6073 description: r##"Checks for address of operations (`&`) that are going to\nbe dereferenced immediately by the compiler."##, 6268 description: r##"Checks for address of operations (`&`) that are going to
6269be dereferenced immediately by the compiler."##,
6074 }, 6270 },
6075 Lint { 6271 Lint {
6076 label: "clippy::needless_borrowed_reference", 6272 label: "clippy::needless_borrowed_reference",
6077 description: r##"Checks for bindings that destructure a reference and borrow the inner\nvalue with `&ref`."##, 6273 description: r##"Checks for bindings that destructure a reference and borrow the inner
6274value with `&ref`."##,
6078 }, 6275 },
6079 Lint { 6276 Lint {
6080 label: "clippy::needless_collect", 6277 label: "clippy::needless_collect",
6081 description: r##"Checks for functions collecting an iterator when collect\nis not needed."##, 6278 description: r##"Checks for functions collecting an iterator when collect
6279is not needed."##,
6082 }, 6280 },
6083 Lint { 6281 Lint {
6084 label: "clippy::needless_continue", 6282 label: "clippy::needless_continue",
6085 description: r##"The lint checks for `if`-statements appearing in loops\nthat contain a `continue` statement in either their main blocks or their\n`else`-blocks, when omitting the `else`-block possibly with some\nrearrangement of code can make the code easier to understand."##, 6283 description: r##"The lint checks for `if`-statements appearing in loops
6284that contain a `continue` statement in either their main blocks or their
6285`else`-blocks, when omitting the `else`-block possibly with some
6286rearrangement of code can make the code easier to understand."##,
6086 }, 6287 },
6087 Lint { 6288 Lint {
6088 label: "clippy::needless_doctest_main", 6289 label: "clippy::needless_doctest_main",
@@ -6090,15 +6291,19 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6090 }, 6291 },
6091 Lint { 6292 Lint {
6092 label: "clippy::needless_for_each", 6293 label: "clippy::needless_for_each",
6093 description: r##"Checks for usage of `for_each` that would be more simply written as a\n`for` loop."##, 6294 description: r##"Checks for usage of `for_each` that would be more simply written as a
6295`for` loop."##,
6094 }, 6296 },
6095 Lint { 6297 Lint {
6096 label: "clippy::needless_lifetimes", 6298 label: "clippy::needless_lifetimes",
6097 description: r##"Checks for lifetime annotations which can be removed by\nrelying on lifetime elision."##, 6299 description: r##"Checks for lifetime annotations which can be removed by
6300relying on lifetime elision."##,
6098 }, 6301 },
6099 Lint { 6302 Lint {
6100 label: "clippy::needless_pass_by_value", 6303 label: "clippy::needless_pass_by_value",
6101 description: r##"Checks for functions taking arguments by value, but not\nconsuming them in its\nbody."##, 6304 description: r##"Checks for functions taking arguments by value, but not
6305consuming them in its
6306body."##,
6102 }, 6307 },
6103 Lint { 6308 Lint {
6104 label: "clippy::needless_question_mark", 6309 label: "clippy::needless_question_mark",
@@ -6106,7 +6311,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6106 }, 6311 },
6107 Lint { 6312 Lint {
6108 label: "clippy::needless_range_loop", 6313 label: "clippy::needless_range_loop",
6109 description: r##"Checks for looping over the range of `0..len` of some\ncollection just to get the values by index."##, 6314 description: r##"Checks for looping over the range of `0..len` of some
6315collection just to get the values by index."##,
6110 }, 6316 },
6111 Lint { 6317 Lint {
6112 label: "clippy::needless_return", 6318 label: "clippy::needless_return",
@@ -6114,11 +6320,16 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6114 }, 6320 },
6115 Lint { 6321 Lint {
6116 label: "clippy::needless_update", 6322 label: "clippy::needless_update",
6117 description: r##"Checks for needlessly including a base struct on update\nwhen all fields are changed anyway.\n\nThis lint is not applied to structs marked with\n[non_exhaustive](https://doc.rust-lang.org/reference/attributes/type_system.html)."##, 6323 description: r##"Checks for needlessly including a base struct on update
6324when all fields are changed anyway.
6325
6326This lint is not applied to structs marked with
6327[non_exhaustive](https://doc.rust-lang.org/reference/attributes/type_system.html)."##,
6118 }, 6328 },
6119 Lint { 6329 Lint {
6120 label: "clippy::neg_cmp_op_on_partial_ord", 6330 label: "clippy::neg_cmp_op_on_partial_ord",
6121 description: r##"Checks for the usage of negated comparison operators on types which only implement\n`PartialOrd` (e.g., `f64`)."##, 6331 description: r##"Checks for the usage of negated comparison operators on types which only implement
6332`PartialOrd` (e.g., `f64`)."##,
6122 }, 6333 },
6123 Lint { 6334 Lint {
6124 label: "clippy::neg_multiply", 6335 label: "clippy::neg_multiply",
@@ -6126,7 +6337,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6126 }, 6337 },
6127 Lint { 6338 Lint {
6128 label: "clippy::never_loop", 6339 label: "clippy::never_loop",
6129 description: r##"Checks for loops that will always `break`, `return` or\n`continue` an outer loop."##, 6340 description: r##"Checks for loops that will always `break`, `return` or
6341`continue` an outer loop."##,
6130 }, 6342 },
6131 Lint { 6343 Lint {
6132 label: "clippy::new_ret_no_self", 6344 label: "clippy::new_ret_no_self",
@@ -6134,7 +6346,9 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6134 }, 6346 },
6135 Lint { 6347 Lint {
6136 label: "clippy::new_without_default", 6348 label: "clippy::new_without_default",
6137 description: r##"Checks for types with a `fn new() -> Self` method and no\nimplementation of\n[`Default`](https://doc.rust-lang.org/std/default/trait.Default.html)."##, 6349 description: r##"Checks for types with a `fn new() -> Self` method and no
6350implementation of
6351[`Default`](https://doc.rust-lang.org/std/default/trait.Default.html)."##,
6138 }, 6352 },
6139 Lint { 6353 Lint {
6140 label: "clippy::no_effect", 6354 label: "clippy::no_effect",
@@ -6150,20 +6364,25 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6150 }, 6364 },
6151 Lint { 6365 Lint {
6152 label: "clippy::nonminimal_bool", 6366 label: "clippy::nonminimal_bool",
6153 description: r##"Checks for boolean expressions that can be written more\nconcisely."##, 6367 description: r##"Checks for boolean expressions that can be written more
6368concisely."##,
6154 }, 6369 },
6155 Lint { 6370 Lint {
6156 label: "clippy::nonsensical_open_options", 6371 label: "clippy::nonsensical_open_options",
6157 description: r##"Checks for duplicate open options as well as combinations\nthat make no sense."##, 6372 description: r##"Checks for duplicate open options as well as combinations
6373that make no sense."##,
6158 }, 6374 },
6159 Lint { 6375 Lint {
6160 label: "clippy::not_unsafe_ptr_arg_deref", 6376 label: "clippy::not_unsafe_ptr_arg_deref",
6161 description: r##"Checks for public functions that dereference raw pointer\narguments but are not marked `unsafe`."##, 6377 description: r##"Checks for public functions that dereference raw pointer
6378arguments but are not marked `unsafe`."##,
6162 }, 6379 },
6163 Lint { label: "clippy::ok_expect", description: r##"Checks for usage of `ok().expect(..)`."## }, 6380 Lint { label: "clippy::ok_expect", description: r##"Checks for usage of `ok().expect(..)`."## },
6164 Lint { 6381 Lint {
6165 label: "clippy::op_ref", 6382 label: "clippy::op_ref",
6166 description: r##"Checks for arguments to `==` which have their address\ntaken to satisfy a bound\nand suggests to dereference the other argument instead"##, 6383 description: r##"Checks for arguments to `==` which have their address
6384taken to satisfy a bound
6385and suggests to dereference the other argument instead"##,
6167 }, 6386 },
6168 Lint { 6387 Lint {
6169 label: "clippy::option_as_ref_deref", 6388 label: "clippy::option_as_ref_deref",
@@ -6171,7 +6390,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6171 }, 6390 },
6172 Lint { 6391 Lint {
6173 label: "clippy::option_env_unwrap", 6392 label: "clippy::option_env_unwrap",
6174 description: r##"Checks for usage of `option_env!(...).unwrap()` and\nsuggests usage of the `env!` macro."##, 6393 description: r##"Checks for usage of `option_env!(...).unwrap()` and
6394suggests usage of the `env!` macro."##,
6175 }, 6395 },
6176 Lint { 6396 Lint {
6177 label: "clippy::option_filter_map", 6397 label: "clippy::option_filter_map",
@@ -6179,7 +6399,10 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6179 }, 6399 },
6180 Lint { 6400 Lint {
6181 label: "clippy::option_if_let_else", 6401 label: "clippy::option_if_let_else",
6182 description: r##"Lints usage of `if let Some(v) = ... { y } else { x }` which is more\nidiomatically done with `Option::map_or` (if the else bit is a pure\nexpression) or `Option::map_or_else` (if the else bit is an impure\nexpression)."##, 6402 description: r##"Lints usage of `if let Some(v) = ... { y } else { x }` which is more
6403idiomatically done with `Option::map_or` (if the else bit is a pure
6404expression) or `Option::map_or_else` (if the else bit is an impure
6405expression)."##,
6183 }, 6406 },
6184 Lint { 6407 Lint {
6185 label: "clippy::option_map_or_none", 6408 label: "clippy::option_map_or_none",
@@ -6187,19 +6410,24 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6187 }, 6410 },
6188 Lint { 6411 Lint {
6189 label: "clippy::option_map_unit_fn", 6412 label: "clippy::option_map_unit_fn",
6190 description: r##"Checks for usage of `option.map(f)` where f is a function\nor closure that returns the unit type `()`."##, 6413 description: r##"Checks for usage of `option.map(f)` where f is a function
6414or closure that returns the unit type `()`."##,
6191 }, 6415 },
6192 Lint { 6416 Lint {
6193 label: "clippy::option_option", 6417 label: "clippy::option_option",
6194 description: r##"Checks for use of `Option<Option<_>>` in function signatures and type\ndefinitions"##, 6418 description: r##"Checks for use of `Option<Option<_>>` in function signatures and type
6419definitions"##,
6195 }, 6420 },
6196 Lint { 6421 Lint {
6197 label: "clippy::or_fun_call", 6422 label: "clippy::or_fun_call",
6198 description: r##"Checks for calls to `.or(foo(..))`, `.unwrap_or(foo(..))`,\netc., and suggests to use `or_else`, `unwrap_or_else`, etc., or\n`unwrap_or_default` instead."##, 6423 description: r##"Checks for calls to `.or(foo(..))`, `.unwrap_or(foo(..))`,
6424etc., and suggests to use `or_else`, `unwrap_or_else`, etc., or
6425`unwrap_or_default` instead."##,
6199 }, 6426 },
6200 Lint { 6427 Lint {
6201 label: "clippy::out_of_bounds_indexing", 6428 label: "clippy::out_of_bounds_indexing",
6202 description: r##"Checks for out of bounds array indexing with a constant\nindex."##, 6429 description: r##"Checks for out of bounds array indexing with a constant
6430index."##,
6203 }, 6431 },
6204 Lint { 6432 Lint {
6205 label: "clippy::overflow_check_conditional", 6433 label: "clippy::overflow_check_conditional",
@@ -6220,19 +6448,44 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6220 }, 6448 },
6221 Lint { 6449 Lint {
6222 label: "clippy::path_buf_push_overwrite", 6450 label: "clippy::path_buf_push_overwrite",
6223 description: r##"* Checks for [push](https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.push)\ncalls on `PathBuf` that can cause overwrites."##, 6451 description: r##"* Checks for [push](https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.push)
6452calls on `PathBuf` that can cause overwrites."##,
6224 }, 6453 },
6225 Lint { 6454 Lint {
6226 label: "clippy::pattern_type_mismatch", 6455 label: "clippy::pattern_type_mismatch",
6227 description: r##"Checks for patterns that aren't exact representations of the types\nthey are applied to.\n\nTo satisfy this lint, you will have to adjust either the expression that is matched\nagainst or the pattern itself, as well as the bindings that are introduced by the\nadjusted patterns. For matching you will have to either dereference the expression\nwith the `*` operator, or amend the patterns to explicitly match against `&<pattern>`\nor `&mut <pattern>` depending on the reference mutability. For the bindings you need\nto use the inverse. You can leave them as plain bindings if you wish for the value\nto be copied, but you must use `ref mut <variable>` or `ref <variable>` to construct\na reference into the matched structure.\n\nIf you are looking for a way to learn about ownership semantics in more detail, it\nis recommended to look at IDE options available to you to highlight types, lifetimes\nand reference semantics in your code. The available tooling would expose these things\nin a general way even outside of the various pattern matching mechanics. Of course\nthis lint can still be used to highlight areas of interest and ensure a good understanding\nof ownership semantics."##, 6456 description: r##"Checks for patterns that aren't exact representations of the types
6457they are applied to.
6458
6459To satisfy this lint, you will have to adjust either the expression that is matched
6460against or the pattern itself, as well as the bindings that are introduced by the
6461adjusted patterns. For matching you will have to either dereference the expression
6462with the `*` operator, or amend the patterns to explicitly match against `&<pattern>`
6463or `&mut <pattern>` depending on the reference mutability. For the bindings you need
6464to use the inverse. You can leave them as plain bindings if you wish for the value
6465to be copied, but you must use `ref mut <variable>` or `ref <variable>` to construct
6466a reference into the matched structure.
6467
6468If you are looking for a way to learn about ownership semantics in more detail, it
6469is recommended to look at IDE options available to you to highlight types, lifetimes
6470and reference semantics in your code. The available tooling would expose these things
6471in a general way even outside of the various pattern matching mechanics. Of course
6472this lint can still be used to highlight areas of interest and ensure a good understanding
6473of ownership semantics."##,
6228 }, 6474 },
6229 Lint { 6475 Lint {
6230 label: "clippy::possible_missing_comma", 6476 label: "clippy::possible_missing_comma",
6231 description: r##"Checks for possible missing comma in an array. It lints if\nan array element is a binary operator expression and it lies on two lines."##, 6477 description: r##"Checks for possible missing comma in an array. It lints if
6478an array element is a binary operator expression and it lies on two lines."##,
6232 }, 6479 },
6233 Lint { 6480 Lint {
6234 label: "clippy::precedence", 6481 label: "clippy::precedence",
6235 description: r##"Checks for operations where precedence may be unclear\nand suggests to add parentheses. Currently it catches the following:\n* mixed usage of arithmetic and bit shifting/combining operators without\nparentheses\n* a \"negative\" numeric literal (which is really a unary `-` followed by a\nnumeric literal)\n followed by a method call"##, 6482 description: r##"Checks for operations where precedence may be unclear
6483and suggests to add parentheses. Currently it catches the following:
6484* mixed usage of arithmetic and bit shifting/combining operators without
6485parentheses
6486* a negative numeric literal (which is really a unary `-` followed by a
6487numeric literal)
6488 followed by a method call"##,
6236 }, 6489 },
6237 Lint { 6490 Lint {
6238 label: "clippy::print_literal", 6491 label: "clippy::print_literal",
@@ -6240,32 +6493,41 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6240 }, 6493 },
6241 Lint { 6494 Lint {
6242 label: "clippy::print_stderr", 6495 label: "clippy::print_stderr",
6243 description: r##"Checks for printing on *stderr*. The purpose of this lint\nis to catch debugging remnants."##, 6496 description: r##"Checks for printing on *stderr*. The purpose of this lint
6497is to catch debugging remnants."##,
6244 }, 6498 },
6245 Lint { 6499 Lint {
6246 label: "clippy::print_stdout", 6500 label: "clippy::print_stdout",
6247 description: r##"Checks for printing on *stdout*. The purpose of this lint\nis to catch debugging remnants."##, 6501 description: r##"Checks for printing on *stdout*. The purpose of this lint
6502is to catch debugging remnants."##,
6248 }, 6503 },
6249 Lint { 6504 Lint {
6250 label: "clippy::print_with_newline", 6505 label: "clippy::print_with_newline",
6251 description: r##"This lint warns when you use `print!()` with a format\nstring that ends in a newline."##, 6506 description: r##"This lint warns when you use `print!()` with a format
6507string that ends in a newline."##,
6252 }, 6508 },
6253 Lint { 6509 Lint {
6254 label: "clippy::println_empty_string", 6510 label: "clippy::println_empty_string",
6255 description: r##"This lint warns when you use `println!(\"\")` to\nprint a newline."##, 6511 description: r##"This lint warns when you use `println!()` to
6512print a newline."##,
6256 }, 6513 },
6257 Lint { 6514 Lint {
6258 label: "clippy::ptr_arg", 6515 label: "clippy::ptr_arg",
6259 description: r##"This lint checks for function arguments of type `&String`\nor `&Vec` unless the references are mutable. It will also suggest you\nreplace `.clone()` calls with the appropriate `.to_owned()`/`to_string()`\ncalls."##, 6516 description: r##"This lint checks for function arguments of type `&String`
6517or `&Vec` unless the references are mutable. It will also suggest you
6518replace `.clone()` calls with the appropriate `.to_owned()`/`to_string()`
6519calls."##,
6260 }, 6520 },
6261 Lint { 6521 Lint {
6262 label: "clippy::ptr_as_ptr", 6522 label: "clippy::ptr_as_ptr",
6263 description: r##"Checks for `as` casts between raw pointers without changing its mutability,\nnamely `*const T` to `*const U` and `*mut T` to `*mut U`."##, 6523 description: r##"Checks for `as` casts between raw pointers without changing its mutability,
6524namely `*const T` to `*const U` and `*mut T` to `*mut U`."##,
6264 }, 6525 },
6265 Lint { label: "clippy::ptr_eq", description: r##"Use `std::ptr::eq` when applicable"## }, 6526 Lint { label: "clippy::ptr_eq", description: r##"Use `std::ptr::eq` when applicable"## },
6266 Lint { 6527 Lint {
6267 label: "clippy::ptr_offset_with_cast", 6528 label: "clippy::ptr_offset_with_cast",
6268 description: r##"Checks for usage of the `offset` pointer method with a `usize` casted to an\n`isize`."##, 6529 description: r##"Checks for usage of the `offset` pointer method with a `usize` casted to an
6530`isize`."##,
6269 }, 6531 },
6270 Lint { 6532 Lint {
6271 label: "clippy::pub_enum_variant_names", 6533 label: "clippy::pub_enum_variant_names",
@@ -6277,11 +6539,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6277 }, 6539 },
6278 Lint { 6540 Lint {
6279 label: "clippy::range_minus_one", 6541 label: "clippy::range_minus_one",
6280 description: r##"Checks for inclusive ranges where 1 is subtracted from\nthe upper bound, e.g., `x..=(y-1)`."##, 6542 description: r##"Checks for inclusive ranges where 1 is subtracted from
6543the upper bound, e.g., `x..=(y-1)`."##,
6281 }, 6544 },
6282 Lint { 6545 Lint {
6283 label: "clippy::range_plus_one", 6546 label: "clippy::range_plus_one",
6284 description: r##"Checks for exclusive ranges where 1 is added to the\nupper bound, e.g., `x..(y+1)`."##, 6547 description: r##"Checks for exclusive ranges where 1 is added to the
6548upper bound, e.g., `x..(y+1)`."##,
6285 }, 6549 },
6286 Lint { 6550 Lint {
6287 label: "clippy::range_step_by_zero", 6551 label: "clippy::range_step_by_zero",
@@ -6289,7 +6553,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6289 }, 6553 },
6290 Lint { 6554 Lint {
6291 label: "clippy::range_zip_with_len", 6555 label: "clippy::range_zip_with_len",
6292 description: r##"Checks for zipping a collection with the range of\n`0.._.len()`."##, 6556 description: r##"Checks for zipping a collection with the range of
6557`0.._.len()`."##,
6293 }, 6558 },
6294 Lint { 6559 Lint {
6295 label: "clippy::rc_buffer", 6560 label: "clippy::rc_buffer",
@@ -6301,19 +6566,24 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6301 }, 6566 },
6302 Lint { 6567 Lint {
6303 label: "clippy::redundant_clone", 6568 label: "clippy::redundant_clone",
6304 description: r##"Checks for a redundant `clone()` (and its relatives) which clones an owned\nvalue that is going to be dropped without further use."##, 6569 description: r##"Checks for a redundant `clone()` (and its relatives) which clones an owned
6570value that is going to be dropped without further use."##,
6305 }, 6571 },
6306 Lint { 6572 Lint {
6307 label: "clippy::redundant_closure", 6573 label: "clippy::redundant_closure",
6308 description: r##"Checks for closures which just call another function where\nthe function can be called directly. `unsafe` functions or calls where types\nget adjusted are ignored."##, 6574 description: r##"Checks for closures which just call another function where
6575the function can be called directly. `unsafe` functions or calls where types
6576get adjusted are ignored."##,
6309 }, 6577 },
6310 Lint { 6578 Lint {
6311 label: "clippy::redundant_closure_call", 6579 label: "clippy::redundant_closure_call",
6312 description: r##"Detects closures called in the same expression where they\nare defined."##, 6580 description: r##"Detects closures called in the same expression where they
6581are defined."##,
6313 }, 6582 },
6314 Lint { 6583 Lint {
6315 label: "clippy::redundant_closure_for_method_calls", 6584 label: "clippy::redundant_closure_for_method_calls",
6316 description: r##"Checks for closures which only invoke a method on the closure\nargument and can be replaced by referencing the method directly."##, 6585 description: r##"Checks for closures which only invoke a method on the closure
6586argument and can be replaced by referencing the method directly."##,
6317 }, 6587 },
6318 Lint { 6588 Lint {
6319 label: "clippy::redundant_else", 6589 label: "clippy::redundant_else",
@@ -6321,7 +6591,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6321 }, 6591 },
6322 Lint { 6592 Lint {
6323 label: "clippy::redundant_field_names", 6593 label: "clippy::redundant_field_names",
6324 description: r##"Checks for fields in struct literals where shorthands\ncould be used."##, 6594 description: r##"Checks for fields in struct literals where shorthands
6595could be used."##,
6325 }, 6596 },
6326 Lint { 6597 Lint {
6327 label: "clippy::redundant_pattern", 6598 label: "clippy::redundant_pattern",
@@ -6329,15 +6600,18 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6329 }, 6600 },
6330 Lint { 6601 Lint {
6331 label: "clippy::redundant_pattern_matching", 6602 label: "clippy::redundant_pattern_matching",
6332 description: r##"Lint for redundant pattern matching over `Result`, `Option`,\n`std::task::Poll` or `std::net::IpAddr`"##, 6603 description: r##"Lint for redundant pattern matching over `Result`, `Option`,
6604`std::task::Poll` or `std::net::IpAddr`"##,
6333 }, 6605 },
6334 Lint { 6606 Lint {
6335 label: "clippy::redundant_pub_crate", 6607 label: "clippy::redundant_pub_crate",
6336 description: r##"Checks for items declared `pub(crate)` that are not crate visible because they\nare inside a private module."##, 6608 description: r##"Checks for items declared `pub(crate)` that are not crate visible because they
6609are inside a private module."##,
6337 }, 6610 },
6338 Lint { 6611 Lint {
6339 label: "clippy::redundant_slicing", 6612 label: "clippy::redundant_slicing",
6340 description: r##"Checks for redundant slicing expressions which use the full range, and\ndo not change the type."##, 6613 description: r##"Checks for redundant slicing expressions which use the full range, and
6614do not change the type."##,
6341 }, 6615 },
6342 Lint { 6616 Lint {
6343 label: "clippy::redundant_static_lifetimes", 6617 label: "clippy::redundant_static_lifetimes",
@@ -6349,7 +6623,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6349 }, 6623 },
6350 Lint { 6624 Lint {
6351 label: "clippy::ref_in_deref", 6625 label: "clippy::ref_in_deref",
6352 description: r##"Checks for references in expressions that use\nauto dereference."##, 6626 description: r##"Checks for references in expressions that use
6627auto dereference."##,
6353 }, 6628 },
6354 Lint { 6629 Lint {
6355 label: "clippy::ref_option_ref", 6630 label: "clippy::ref_option_ref",
@@ -6361,7 +6636,10 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6361 }, 6636 },
6362 Lint { 6637 Lint {
6363 label: "clippy::repeat_once", 6638 label: "clippy::repeat_once",
6364 description: r##"Checks for usage of `.repeat(1)` and suggest the following method for each types.\n- `.to_string()` for `str`\n- `.clone()` for `String`\n- `.to_vec()` for `slice`"##, 6639 description: r##"Checks for usage of `.repeat(1)` and suggest the following method for each types.
6640- `.to_string()` for `str`
6641- `.clone()` for `String`
6642- `.to_vec()` for `slice`"##,
6365 }, 6643 },
6366 Lint { 6644 Lint {
6367 label: "clippy::replace_consts", 6645 label: "clippy::replace_consts",
@@ -6377,15 +6655,19 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6377 }, 6655 },
6378 Lint { 6656 Lint {
6379 label: "clippy::result_map_unit_fn", 6657 label: "clippy::result_map_unit_fn",
6380 description: r##"Checks for usage of `result.map(f)` where f is a function\nor closure that returns the unit type `()`."##, 6658 description: r##"Checks for usage of `result.map(f)` where f is a function
6659or closure that returns the unit type `()`."##,
6381 }, 6660 },
6382 Lint { 6661 Lint {
6383 label: "clippy::result_unit_err", 6662 label: "clippy::result_unit_err",
6384 description: r##"Checks for public functions that return a `Result`\nwith an `Err` type of `()`. It suggests using a custom type that\nimplements `std::error::Error`."##, 6663 description: r##"Checks for public functions that return a `Result`
6664with an `Err` type of `()`. It suggests using a custom type that
6665implements `std::error::Error`."##,
6385 }, 6666 },
6386 Lint { 6667 Lint {
6387 label: "clippy::reversed_empty_ranges", 6668 label: "clippy::reversed_empty_ranges",
6388 description: r##"Checks for range expressions `x..y` where both `x` and `y`\nare constant and `x` is greater or equal to `y`."##, 6669 description: r##"Checks for range expressions `x..y` where both `x` and `y`
6670are constant and `x` is greater or equal to `y`."##,
6389 }, 6671 },
6390 Lint { 6672 Lint {
6391 label: "clippy::same_functions_in_if_condition", 6673 label: "clippy::same_functions_in_if_condition",
@@ -6393,11 +6675,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6393 }, 6675 },
6394 Lint { 6676 Lint {
6395 label: "clippy::same_item_push", 6677 label: "clippy::same_item_push",
6396 description: r##"Checks whether a for loop is being used to push a constant\nvalue into a Vec."##, 6678 description: r##"Checks whether a for loop is being used to push a constant
6679value into a Vec."##,
6397 }, 6680 },
6398 Lint { 6681 Lint {
6399 label: "clippy::search_is_some", 6682 label: "clippy::search_is_some",
6400 description: r##"Checks for an iterator or string search (such as `find()`,\n`position()`, or `rposition()`) followed by a call to `is_some()` or `is_none()`."##, 6683 description: r##"Checks for an iterator or string search (such as `find()`,
6684`position()`, or `rposition()`) followed by a call to `is_some()` or `is_none()`."##,
6401 }, 6685 },
6402 Lint { 6686 Lint {
6403 label: "clippy::self_assignment", 6687 label: "clippy::self_assignment",
@@ -6405,7 +6689,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6405 }, 6689 },
6406 Lint { 6690 Lint {
6407 label: "clippy::semicolon_if_nothing_returned", 6691 label: "clippy::semicolon_if_nothing_returned",
6408 description: r##"Looks for blocks of expressions and fires if the last expression returns\n`()` but is not followed by a semicolon."##, 6692 description: r##"Looks for blocks of expressions and fires if the last expression returns
6693`()` but is not followed by a semicolon."##,
6409 }, 6694 },
6410 Lint { 6695 Lint {
6411 label: "clippy::serde_api_misuse", 6696 label: "clippy::serde_api_misuse",
@@ -6413,19 +6698,25 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6413 }, 6698 },
6414 Lint { 6699 Lint {
6415 label: "clippy::shadow_reuse", 6700 label: "clippy::shadow_reuse",
6416 description: r##"Checks for bindings that shadow other bindings already in\nscope, while reusing the original value."##, 6701 description: r##"Checks for bindings that shadow other bindings already in
6702scope, while reusing the original value."##,
6417 }, 6703 },
6418 Lint { 6704 Lint {
6419 label: "clippy::shadow_same", 6705 label: "clippy::shadow_same",
6420 description: r##"Checks for bindings that shadow other bindings already in\nscope, while just changing reference level or mutability."##, 6706 description: r##"Checks for bindings that shadow other bindings already in
6707scope, while just changing reference level or mutability."##,
6421 }, 6708 },
6422 Lint { 6709 Lint {
6423 label: "clippy::shadow_unrelated", 6710 label: "clippy::shadow_unrelated",
6424 description: r##"Checks for bindings that shadow other bindings already in\nscope, either without a initialization or with one that does not even use\nthe original value."##, 6711 description: r##"Checks for bindings that shadow other bindings already in
6712scope, either without a initialization or with one that does not even use
6713the original value."##,
6425 }, 6714 },
6426 Lint { 6715 Lint {
6427 label: "clippy::short_circuit_statement", 6716 label: "clippy::short_circuit_statement",
6428 description: r##"Checks for the use of short circuit boolean conditions as\na\nstatement."##, 6717 description: r##"Checks for the use of short circuit boolean conditions as
6718a
6719statement."##,
6429 }, 6720 },
6430 Lint { 6721 Lint {
6431 label: "clippy::should_assert_eq", 6722 label: "clippy::should_assert_eq",
@@ -6433,7 +6724,10 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6433 }, 6724 },
6434 Lint { 6725 Lint {
6435 label: "clippy::should_implement_trait", 6726 label: "clippy::should_implement_trait",
6436 description: r##"Checks for methods that should live in a trait\nimplementation of a `std` trait (see [llogiq's blog\npost](http://llogiq.github.io/2015/07/30/traits.html) for further\ninformation) instead of an inherent implementation."##, 6727 description: r##"Checks for methods that should live in a trait
6728implementation of a `std` trait (see [llogiq's blog
6729post](http://llogiq.github.io/2015/07/30/traits.html) for further
6730information) instead of an inherent implementation."##,
6437 }, 6731 },
6438 Lint { 6732 Lint {
6439 label: "clippy::similar_names", 6733 label: "clippy::similar_names",
@@ -6441,11 +6735,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6441 }, 6735 },
6442 Lint { 6736 Lint {
6443 label: "clippy::single_char_add_str", 6737 label: "clippy::single_char_add_str",
6444 description: r##"Warns when using `push_str`/`insert_str` with a single-character string literal\nwhere `push`/`insert` with a `char` would work fine."##, 6738 description: r##"Warns when using `push_str`/`insert_str` with a single-character string literal
6739where `push`/`insert` with a `char` would work fine."##,
6445 }, 6740 },
6446 Lint { 6741 Lint {
6447 label: "clippy::single_char_pattern", 6742 label: "clippy::single_char_pattern",
6448 description: r##"Checks for string methods that receive a single-character\n`str` as an argument, e.g., `_.split(\"x\")`."##, 6743 description: r##"Checks for string methods that receive a single-character
6744`str` as an argument, e.g., `_.split(x)`."##,
6449 }, 6745 },
6450 Lint { 6746 Lint {
6451 label: "clippy::single_component_path_imports", 6747 label: "clippy::single_component_path_imports",
@@ -6457,15 +6753,19 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6457 }, 6753 },
6458 Lint { 6754 Lint {
6459 label: "clippy::single_match", 6755 label: "clippy::single_match",
6460 description: r##"Checks for matches with a single arm where an `if let`\nwill usually suffice."##, 6756 description: r##"Checks for matches with a single arm where an `if let`
6757will usually suffice."##,
6461 }, 6758 },
6462 Lint { 6759 Lint {
6463 label: "clippy::single_match_else", 6760 label: "clippy::single_match_else",
6464 description: r##"Checks for matches with two arms where an `if let else` will\nusually suffice."##, 6761 description: r##"Checks for matches with two arms where an `if let else` will
6762usually suffice."##,
6465 }, 6763 },
6466 Lint { 6764 Lint {
6467 label: "clippy::size_of_in_element_count", 6765 label: "clippy::size_of_in_element_count",
6468 description: r##"Detects expressions where\n`size_of::<T>` or `size_of_val::<T>` is used as a\ncount of elements of type `T`"##, 6766 description: r##"Detects expressions where
6767`size_of::<T>` or `size_of_val::<T>` is used as a
6768count of elements of type `T`"##,
6469 }, 6769 },
6470 Lint { 6770 Lint {
6471 label: "clippy::skip_while_next", 6771 label: "clippy::skip_while_next",
@@ -6477,7 +6777,9 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6477 }, 6777 },
6478 Lint { 6778 Lint {
6479 label: "clippy::stable_sort_primitive", 6779 label: "clippy::stable_sort_primitive",
6480 description: r##"When sorting primitive values (integers, bools, chars, as well\nas arrays, slices, and tuples of such items), it is better to\nuse an unstable sort than a stable sort."##, 6780 description: r##"When sorting primitive values (integers, bools, chars, as well
6781as arrays, slices, and tuples of such items), it is better to
6782use an unstable sort than a stable sort."##,
6481 }, 6783 },
6482 Lint { 6784 Lint {
6483 label: "clippy::str_to_string", 6785 label: "clippy::str_to_string",
@@ -6485,15 +6787,19 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6485 }, 6787 },
6486 Lint { 6788 Lint {
6487 label: "clippy::string_add", 6789 label: "clippy::string_add",
6488 description: r##"Checks for all instances of `x + _` where `x` is of type\n`String`, but only if [`string_add_assign`](#string_add_assign) does *not*\nmatch."##, 6790 description: r##"Checks for all instances of `x + _` where `x` is of type
6791`String`, but only if [`string_add_assign`](#string_add_assign) does *not*
6792match."##,
6489 }, 6793 },
6490 Lint { 6794 Lint {
6491 label: "clippy::string_add_assign", 6795 label: "clippy::string_add_assign",
6492 description: r##"Checks for string appends of the form `x = x + y` (without\n`let`!)."##, 6796 description: r##"Checks for string appends of the form `x = x + y` (without
6797`let`!)."##,
6493 }, 6798 },
6494 Lint { 6799 Lint {
6495 label: "clippy::string_extend_chars", 6800 label: "clippy::string_extend_chars",
6496 description: r##"Checks for the use of `.extend(s.chars())` where s is a\n`&str` or `String`."##, 6801 description: r##"Checks for the use of `.extend(s.chars())` where s is a
6802`&str` or `String`."##,
6497 }, 6803 },
6498 Lint { 6804 Lint {
6499 label: "clippy::string_from_utf8_as_bytes", 6805 label: "clippy::string_from_utf8_as_bytes",
@@ -6501,7 +6807,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6501 }, 6807 },
6502 Lint { 6808 Lint {
6503 label: "clippy::string_lit_as_bytes", 6809 label: "clippy::string_lit_as_bytes",
6504 description: r##"Checks for the `as_bytes` method called on string literals\nthat contain only ASCII characters."##, 6810 description: r##"Checks for the `as_bytes` method called on string literals
6811that contain only ASCII characters."##,
6505 }, 6812 },
6506 Lint { 6813 Lint {
6507 label: "clippy::string_to_string", 6814 label: "clippy::string_to_string",
@@ -6509,23 +6816,29 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6509 }, 6816 },
6510 Lint { 6817 Lint {
6511 label: "clippy::struct_excessive_bools", 6818 label: "clippy::struct_excessive_bools",
6512 description: r##"Checks for excessive\nuse of bools in structs."##, 6819 description: r##"Checks for excessive
6820use of bools in structs."##,
6513 }, 6821 },
6514 Lint { 6822 Lint {
6515 label: "clippy::suboptimal_flops", 6823 label: "clippy::suboptimal_flops",
6516 description: r##"Looks for floating-point expressions that\ncan be expressed using built-in methods to improve both\naccuracy and performance."##, 6824 description: r##"Looks for floating-point expressions that
6825can be expressed using built-in methods to improve both
6826accuracy and performance."##,
6517 }, 6827 },
6518 Lint { 6828 Lint {
6519 label: "clippy::suspicious_arithmetic_impl", 6829 label: "clippy::suspicious_arithmetic_impl",
6520 description: r##"Lints for suspicious operations in impls of arithmetic operators, e.g.\nsubtracting elements in an Add impl."##, 6830 description: r##"Lints for suspicious operations in impls of arithmetic operators, e.g.
6831subtracting elements in an Add impl."##,
6521 }, 6832 },
6522 Lint { 6833 Lint {
6523 label: "clippy::suspicious_assignment_formatting", 6834 label: "clippy::suspicious_assignment_formatting",
6524 description: r##"Checks for use of the non-existent `=*`, `=!` and `=-`\noperators."##, 6835 description: r##"Checks for use of the non-existent `=*`, `=!` and `=-`
6836operators."##,
6525 }, 6837 },
6526 Lint { 6838 Lint {
6527 label: "clippy::suspicious_else_formatting", 6839 label: "clippy::suspicious_else_formatting",
6528 description: r##"Checks for formatting of `else`. It lints if the `else`\nis followed immediately by a newline or the `else` seems to be missing."##, 6840 description: r##"Checks for formatting of `else`. It lints if the `else`
6841is followed immediately by a newline or the `else` seems to be missing."##,
6529 }, 6842 },
6530 Lint { 6843 Lint {
6531 label: "clippy::suspicious_map", 6844 label: "clippy::suspicious_map",
@@ -6533,19 +6846,26 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6533 }, 6846 },
6534 Lint { 6847 Lint {
6535 label: "clippy::suspicious_op_assign_impl", 6848 label: "clippy::suspicious_op_assign_impl",
6536 description: r##"Lints for suspicious operations in impls of OpAssign, e.g.\nsubtracting elements in an AddAssign impl."##, 6849 description: r##"Lints for suspicious operations in impls of OpAssign, e.g.
6850subtracting elements in an AddAssign impl."##,
6537 }, 6851 },
6538 Lint { 6852 Lint {
6539 label: "clippy::suspicious_operation_groupings", 6853 label: "clippy::suspicious_operation_groupings",
6540 description: r##"Checks for unlikely usages of binary operators that are almost\ncertainly typos and/or copy/paste errors, given the other usages\nof binary operators nearby."##, 6854 description: r##"Checks for unlikely usages of binary operators that are almost
6855certainly typos and/or copy/paste errors, given the other usages
6856of binary operators nearby."##,
6541 }, 6857 },
6542 Lint { 6858 Lint {
6543 label: "clippy::suspicious_splitn", 6859 label: "clippy::suspicious_splitn",
6544 description: r##"Checks for calls to [`splitn`]\n(https://doc.rust-lang.org/std/primitive.str.html#method.splitn) and\nrelated functions with either zero or one splits."##, 6860 description: r##"Checks for calls to [`splitn`]
6861(https://doc.rust-lang.org/std/primitive.str.html#method.splitn) and
6862related functions with either zero or one splits."##,
6545 }, 6863 },
6546 Lint { 6864 Lint {
6547 label: "clippy::suspicious_unary_op_formatting", 6865 label: "clippy::suspicious_unary_op_formatting",
6548 description: r##"Checks the formatting of a unary operator on the right hand side\nof a binary operator. It lints if there is no space between the binary and unary operators,\nbut there is a space between the unary and its operand."##, 6866 description: r##"Checks the formatting of a unary operator on the right hand side
6867of a binary operator. It lints if there is no space between the binary and unary operators,
6868but there is a space between the unary and its operand."##,
6549 }, 6869 },
6550 Lint { 6870 Lint {
6551 label: "clippy::tabs_in_doc_comments", 6871 label: "clippy::tabs_in_doc_comments",
@@ -6553,7 +6873,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6553 }, 6873 },
6554 Lint { 6874 Lint {
6555 label: "clippy::temporary_assignment", 6875 label: "clippy::temporary_assignment",
6556 description: r##"Checks for construction of a structure or tuple just to\nassign a value in it."##, 6876 description: r##"Checks for construction of a structure or tuple just to
6877assign a value in it."##,
6557 }, 6878 },
6558 Lint { 6879 Lint {
6559 label: "clippy::to_digit_is_some", 6880 label: "clippy::to_digit_is_some",
@@ -6574,11 +6895,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6574 }, 6895 },
6575 Lint { 6896 Lint {
6576 label: "clippy::toplevel_ref_arg", 6897 label: "clippy::toplevel_ref_arg",
6577 description: r##"Checks for function arguments and let bindings denoted as\n`ref`."##, 6898 description: r##"Checks for function arguments and let bindings denoted as
6899`ref`."##,
6578 }, 6900 },
6579 Lint { 6901 Lint {
6580 label: "clippy::trait_duplication_in_bounds", 6902 label: "clippy::trait_duplication_in_bounds",
6581 description: r##"Checks for cases where generics are being used and multiple\nsyntax specifications for trait bounds are used simultaneously."##, 6903 description: r##"Checks for cases where generics are being used and multiple
6904syntax specifications for trait bounds are used simultaneously."##,
6582 }, 6905 },
6583 Lint { 6906 Lint {
6584 label: "clippy::transmute_bytes_to_str", 6907 label: "clippy::transmute_bytes_to_str",
@@ -6602,7 +6925,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6602 }, 6925 },
6603 Lint { 6926 Lint {
6604 label: "clippy::transmute_ptr_to_ptr", 6927 label: "clippy::transmute_ptr_to_ptr",
6605 description: r##"Checks for transmutes from a pointer to a pointer, or\nfrom a reference to a reference."##, 6928 description: r##"Checks for transmutes from a pointer to a pointer, or
6929from a reference to a reference."##,
6606 }, 6930 },
6607 Lint { 6931 Lint {
6608 label: "clippy::transmute_ptr_to_ref", 6932 label: "clippy::transmute_ptr_to_ref",
@@ -6618,16 +6942,20 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6618 }, 6942 },
6619 Lint { 6943 Lint {
6620 label: "clippy::trivial_regex", 6944 label: "clippy::trivial_regex",
6621 description: r##"Checks for trivial [regex](https://crates.io/crates/regex)\ncreation (with `Regex::new`, `RegexBuilder::new`, or `RegexSet::new`)."##, 6945 description: r##"Checks for trivial [regex](https://crates.io/crates/regex)
6946creation (with `Regex::new`, `RegexBuilder::new`, or `RegexSet::new`)."##,
6622 }, 6947 },
6623 Lint { 6948 Lint {
6624 label: "clippy::trivially_copy_pass_by_ref", 6949 label: "clippy::trivially_copy_pass_by_ref",
6625 description: r##"Checks for functions taking arguments by reference, where\nthe argument type is `Copy` and small enough to be more efficient to always\npass by value."##, 6950 description: r##"Checks for functions taking arguments by reference, where
6951the argument type is `Copy` and small enough to be more efficient to always
6952pass by value."##,
6626 }, 6953 },
6627 Lint { label: "clippy::try_err", description: r##"Checks for usages of `Err(x)?`."## }, 6954 Lint { label: "clippy::try_err", description: r##"Checks for usages of `Err(x)?`."## },
6628 Lint { 6955 Lint {
6629 label: "clippy::type_complexity", 6956 label: "clippy::type_complexity",
6630 description: r##"Checks for types used in structs, parameters and `let`\ndeclarations above a certain complexity threshold."##, 6957 description: r##"Checks for types used in structs, parameters and `let`
6958declarations above a certain complexity threshold."##,
6631 }, 6959 },
6632 Lint { 6960 Lint {
6633 label: "clippy::type_repetition_in_bounds", 6961 label: "clippy::type_repetition_in_bounds",
@@ -6639,7 +6967,9 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6639 }, 6967 },
6640 Lint { 6968 Lint {
6641 label: "clippy::unicode_not_nfc", 6969 label: "clippy::unicode_not_nfc",
6642 description: r##"Checks for string literals that contain Unicode in a form\nthat is not equal to its\n[NFC-recomposition](http://www.unicode.org/reports/tr15/#Norm_Forms)."##, 6970 description: r##"Checks for string literals that contain Unicode in a form
6971that is not equal to its
6972[NFC-recomposition](http://www.unicode.org/reports/tr15/#Norm_Forms)."##,
6643 }, 6973 },
6644 Lint { 6974 Lint {
6645 label: "clippy::unimplemented", 6975 label: "clippy::unimplemented",
@@ -6651,39 +6981,59 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6651 }, 6981 },
6652 Lint { 6982 Lint {
6653 label: "clippy::unit_arg", 6983 label: "clippy::unit_arg",
6654 description: r##"Checks for passing a unit value as an argument to a function without using a\nunit literal (`()`)."##, 6984 description: r##"Checks for passing a unit value as an argument to a function without using a
6985unit literal (`()`)."##,
6655 }, 6986 },
6656 Lint { 6987 Lint {
6657 label: "clippy::unit_cmp", 6988 label: "clippy::unit_cmp",
6658 description: r##"Checks for comparisons to unit. This includes all binary\ncomparisons (like `==` and `<`) and asserts."##, 6989 description: r##"Checks for comparisons to unit. This includes all binary
6990comparisons (like `==` and `<`) and asserts."##,
6659 }, 6991 },
6660 Lint { 6992 Lint {
6661 label: "clippy::unit_return_expecting_ord", 6993 label: "clippy::unit_return_expecting_ord",
6662 description: r##"Checks for functions that expect closures of type\nFn(...) -> Ord where the implemented closure returns the unit type.\nThe lint also suggests to remove the semi-colon at the end of the statement if present."##, 6994 description: r##"Checks for functions that expect closures of type
6995Fn(...) -> Ord where the implemented closure returns the unit type.
6996The lint also suggests to remove the semi-colon at the end of the statement if present."##,
6663 }, 6997 },
6664 Lint { 6998 Lint {
6665 label: "clippy::unnecessary_cast", 6999 label: "clippy::unnecessary_cast",
6666 description: r##"Checks for casts to the same type, casts of int literals to integer types\nand casts of float literals to float types."##, 7000 description: r##"Checks for casts to the same type, casts of int literals to integer types
7001and casts of float literals to float types."##,
6667 }, 7002 },
6668 Lint { 7003 Lint {
6669 label: "clippy::unnecessary_filter_map", 7004 label: "clippy::unnecessary_filter_map",
6670 description: r##"Checks for `filter_map` calls which could be replaced by `filter` or `map`.\nMore specifically it checks if the closure provided is only performing one of the\nfilter or map operations and suggests the appropriate option."##, 7005 description: r##"Checks for `filter_map` calls which could be replaced by `filter` or `map`.
7006More specifically it checks if the closure provided is only performing one of the
7007filter or map operations and suggests the appropriate option."##,
6671 }, 7008 },
6672 Lint { 7009 Lint {
6673 label: "clippy::unnecessary_fold", 7010 label: "clippy::unnecessary_fold",
6674 description: r##"Checks for using `fold` when a more succinct alternative exists.\nSpecifically, this checks for `fold`s which could be replaced by `any`, `all`,\n`sum` or `product`."##, 7011 description: r##"Checks for using `fold` when a more succinct alternative exists.
7012Specifically, this checks for `fold`s which could be replaced by `any`, `all`,
7013`sum` or `product`."##,
6675 }, 7014 },
6676 Lint { 7015 Lint {
6677 label: "clippy::unnecessary_lazy_evaluations", 7016 label: "clippy::unnecessary_lazy_evaluations",
6678 description: r##"As the counterpart to `or_fun_call`, this lint looks for unnecessary\nlazily evaluated closures on `Option` and `Result`.\n\nThis lint suggests changing the following functions, when eager evaluation results in\nsimpler code:\n - `unwrap_or_else` to `unwrap_or`\n - `and_then` to `and`\n - `or_else` to `or`\n - `get_or_insert_with` to `get_or_insert`\n - `ok_or_else` to `ok_or`"##, 7017 description: r##"As the counterpart to `or_fun_call`, this lint looks for unnecessary
7018lazily evaluated closures on `Option` and `Result`.
7019
7020This lint suggests changing the following functions, when eager evaluation results in
7021simpler code:
7022 - `unwrap_or_else` to `unwrap_or`
7023 - `and_then` to `and`
7024 - `or_else` to `or`
7025 - `get_or_insert_with` to `get_or_insert`
7026 - `ok_or_else` to `ok_or`"##,
6679 }, 7027 },
6680 Lint { 7028 Lint {
6681 label: "clippy::unnecessary_mut_passed", 7029 label: "clippy::unnecessary_mut_passed",
6682 description: r##"Detects passing a mutable reference to a function that only\nrequires an immutable reference."##, 7030 description: r##"Detects passing a mutable reference to a function that only
7031requires an immutable reference."##,
6683 }, 7032 },
6684 Lint { 7033 Lint {
6685 label: "clippy::unnecessary_operation", 7034 label: "clippy::unnecessary_operation",
6686 description: r##"Checks for expression statements that can be reduced to a\nsub-expression."##, 7035 description: r##"Checks for expression statements that can be reduced to a
7036sub-expression."##,
6687 }, 7037 },
6688 Lint { 7038 Lint {
6689 label: "clippy::unnecessary_self_imports", 7039 label: "clippy::unnecessary_self_imports",
@@ -6691,7 +7041,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6691 }, 7041 },
6692 Lint { 7042 Lint {
6693 label: "clippy::unnecessary_sort_by", 7043 label: "clippy::unnecessary_sort_by",
6694 description: r##"Detects uses of `Vec::sort_by` passing in a closure\nwhich compares the two arguments, either directly or indirectly."##, 7044 description: r##"Detects uses of `Vec::sort_by` passing in a closure
7045which compares the two arguments, either directly or indirectly."##,
6695 }, 7046 },
6696 Lint { 7047 Lint {
6697 label: "clippy::unnecessary_unwrap", 7048 label: "clippy::unnecessary_unwrap",
@@ -6707,24 +7058,37 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6707 }, 7058 },
6708 Lint { 7059 Lint {
6709 label: "clippy::unneeded_wildcard_pattern", 7060 label: "clippy::unneeded_wildcard_pattern",
6710 description: r##"Checks for tuple patterns with a wildcard\npattern (`_`) is next to a rest pattern (`..`).\n\n_NOTE_: While `_, ..` means there is at least one element left, `..`\nmeans there are 0 or more elements left. This can make a difference\nwhen refactoring, but shouldn't result in errors in the refactored code,\nsince the wildcard pattern isn't used anyway."##, 7061 description: r##"Checks for tuple patterns with a wildcard
7062pattern (`_`) is next to a rest pattern (`..`).
7063
7064_NOTE_: While `_, ..` means there is at least one element left, `..`
7065means there are 0 or more elements left. This can make a difference
7066when refactoring, but shouldn't result in errors in the refactored code,
7067since the wildcard pattern isn't used anyway."##,
6711 }, 7068 },
6712 Lint { 7069 Lint {
6713 label: "clippy::unnested_or_patterns", 7070 label: "clippy::unnested_or_patterns",
6714 description: r##"Checks for unnested or-patterns, e.g., `Some(0) | Some(2)` and\nsuggests replacing the pattern with a nested one, `Some(0 | 2)`.\n\nAnother way to think of this is that it rewrites patterns in\n*disjunctive normal form (DNF)* into *conjunctive normal form (CNF)*."##, 7071 description: r##"Checks for unnested or-patterns, e.g., `Some(0) | Some(2)` and
7072suggests replacing the pattern with a nested one, `Some(0 | 2)`.
7073
7074Another way to think of this is that it rewrites patterns in
7075*disjunctive normal form (DNF)* into *conjunctive normal form (CNF)*."##,
6715 }, 7076 },
6716 Lint { label: "clippy::unreachable", description: r##"Checks for usage of `unreachable!`."## }, 7077 Lint { label: "clippy::unreachable", description: r##"Checks for usage of `unreachable!`."## },
6717 Lint { 7078 Lint {
6718 label: "clippy::unreadable_literal", 7079 label: "clippy::unreadable_literal",
6719 description: r##"Warns if a long integral or floating-point constant does\nnot contain underscores."##, 7080 description: r##"Warns if a long integral or floating-point constant does
7081not contain underscores."##,
6720 }, 7082 },
6721 Lint { 7083 Lint {
6722 label: "clippy::unsafe_derive_deserialize", 7084 label: "clippy::unsafe_derive_deserialize",
6723 description: r##"Checks for deriving `serde::Deserialize` on a type that\nhas methods using `unsafe`."##, 7085 description: r##"Checks for deriving `serde::Deserialize` on a type that
7086has methods using `unsafe`."##,
6724 }, 7087 },
6725 Lint { 7088 Lint {
6726 label: "clippy::unsafe_removed_from_name", 7089 label: "clippy::unsafe_removed_from_name",
6727 description: r##"Checks for imports that remove \"unsafe\" from an item's\nname."##, 7090 description: r##"Checks for imports that remove unsafe from an item's
7091name."##,
6728 }, 7092 },
6729 Lint { 7093 Lint {
6730 label: "clippy::unsafe_vector_initialization", 7094 label: "clippy::unsafe_vector_initialization",
@@ -6732,11 +7096,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6732 }, 7096 },
6733 Lint { 7097 Lint {
6734 label: "clippy::unseparated_literal_suffix", 7098 label: "clippy::unseparated_literal_suffix",
6735 description: r##"Warns if literal suffixes are not separated by an\nunderscore."##, 7099 description: r##"Warns if literal suffixes are not separated by an
7100underscore."##,
6736 }, 7101 },
6737 Lint { 7102 Lint {
6738 label: "clippy::unsound_collection_transmute", 7103 label: "clippy::unsound_collection_transmute",
6739 description: r##"Checks for transmutes between collections whose\ntypes have different ABI, size or alignment."##, 7104 description: r##"Checks for transmutes between collections whose
7105types have different ABI, size or alignment."##,
6740 }, 7106 },
6741 Lint { 7107 Lint {
6742 label: "clippy::unstable_as_mut_slice", 7108 label: "clippy::unstable_as_mut_slice",
@@ -6768,7 +7134,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6768 }, 7134 },
6769 Lint { 7135 Lint {
6770 label: "clippy::unusual_byte_groupings", 7136 label: "clippy::unusual_byte_groupings",
6771 description: r##"Warns if hexadecimal or binary literals are not grouped\nby nibble or byte."##, 7137 description: r##"Warns if hexadecimal or binary literals are not grouped
7138by nibble or byte."##,
6772 }, 7139 },
6773 Lint { 7140 Lint {
6774 label: "clippy::unwrap_in_result", 7141 label: "clippy::unwrap_in_result",
@@ -6784,47 +7151,63 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6784 }, 7151 },
6785 Lint { 7152 Lint {
6786 label: "clippy::use_debug", 7153 label: "clippy::use_debug",
6787 description: r##"Checks for use of `Debug` formatting. The purpose of this\nlint is to catch debugging remnants."##, 7154 description: r##"Checks for use of `Debug` formatting. The purpose of this
7155lint is to catch debugging remnants."##,
6788 }, 7156 },
6789 Lint { 7157 Lint {
6790 label: "clippy::use_self", 7158 label: "clippy::use_self",
6791 description: r##"Checks for unnecessary repetition of structure name when a\nreplacement with `Self` is applicable."##, 7159 description: r##"Checks for unnecessary repetition of structure name when a
7160replacement with `Self` is applicable."##,
6792 }, 7161 },
6793 Lint { 7162 Lint {
6794 label: "clippy::used_underscore_binding", 7163 label: "clippy::used_underscore_binding",
6795 description: r##"Checks for the use of bindings with a single leading\nunderscore."##, 7164 description: r##"Checks for the use of bindings with a single leading
7165underscore."##,
6796 }, 7166 },
6797 Lint { 7167 Lint {
6798 label: "clippy::useless_asref", 7168 label: "clippy::useless_asref",
6799 description: r##"Checks for usage of `.as_ref()` or `.as_mut()` where the\ntypes before and after the call are the same."##, 7169 description: r##"Checks for usage of `.as_ref()` or `.as_mut()` where the
7170types before and after the call are the same."##,
6800 }, 7171 },
6801 Lint { 7172 Lint {
6802 label: "clippy::useless_attribute", 7173 label: "clippy::useless_attribute",
6803 description: r##"Checks for `extern crate` and `use` items annotated with\nlint attributes.\n\nThis lint permits `#[allow(unused_imports)]`, `#[allow(deprecated)]`,\n`#[allow(unreachable_pub)]`, `#[allow(clippy::wildcard_imports)]` and\n`#[allow(clippy::enum_glob_use)]` on `use` items and `#[allow(unused_imports)]` on\n`extern crate` items with a `#[macro_use]` attribute."##, 7174 description: r##"Checks for `extern crate` and `use` items annotated with
7175lint attributes.
7176
7177This lint permits `#[allow(unused_imports)]`, `#[allow(deprecated)]`,
7178`#[allow(unreachable_pub)]`, `#[allow(clippy::wildcard_imports)]` and
7179`#[allow(clippy::enum_glob_use)]` on `use` items and `#[allow(unused_imports)]` on
7180`extern crate` items with a `#[macro_use]` attribute."##,
6804 }, 7181 },
6805 Lint { 7182 Lint {
6806 label: "clippy::useless_conversion", 7183 label: "clippy::useless_conversion",
6807 description: r##"Checks for `Into`, `TryInto`, `From`, `TryFrom`, or `IntoIter` calls\nwhich uselessly convert to the same type."##, 7184 description: r##"Checks for `Into`, `TryInto`, `From`, `TryFrom`, or `IntoIter` calls
7185which uselessly convert to the same type."##,
6808 }, 7186 },
6809 Lint { 7187 Lint {
6810 label: "clippy::useless_format", 7188 label: "clippy::useless_format",
6811 description: r##"Checks for the use of `format!(\"string literal with no\nargument\")` and `format!(\"{}\", foo)` where `foo` is a string."##, 7189 description: r##"Checks for the use of `format!(string literal with no
7190argument)` and `format!({}, foo)` where `foo` is a string."##,
6812 }, 7191 },
6813 Lint { 7192 Lint {
6814 label: "clippy::useless_let_if_seq", 7193 label: "clippy::useless_let_if_seq",
6815 description: r##"Checks for variable declarations immediately followed by a\nconditional affectation."##, 7194 description: r##"Checks for variable declarations immediately followed by a
7195conditional affectation."##,
6816 }, 7196 },
6817 Lint { 7197 Lint {
6818 label: "clippy::useless_transmute", 7198 label: "clippy::useless_transmute",
6819 description: r##"Checks for transmutes to the original type of the object\nand transmutes that could be a cast."##, 7199 description: r##"Checks for transmutes to the original type of the object
7200and transmutes that could be a cast."##,
6820 }, 7201 },
6821 Lint { 7202 Lint {
6822 label: "clippy::useless_vec", 7203 label: "clippy::useless_vec",
6823 description: r##"Checks for usage of `&vec![..]` when using `&[..]` would\nbe possible."##, 7204 description: r##"Checks for usage of `&vec![..]` when using `&[..]` would
7205be possible."##,
6824 }, 7206 },
6825 Lint { 7207 Lint {
6826 label: "clippy::vec_box", 7208 label: "clippy::vec_box",
6827 description: r##"Checks for use of `Vec<Box<T>>` where T: Sized anywhere in the code.\nCheck the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##, 7209 description: r##"Checks for use of `Vec<Box<T>>` where T: Sized anywhere in the code.
7210Check the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##,
6828 }, 7211 },
6829 Lint { 7212 Lint {
6830 label: "clippy::vec_init_then_push", 7213 label: "clippy::vec_init_then_push",
@@ -6836,7 +7219,8 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6836 }, 7219 },
6837 Lint { 7220 Lint {
6838 label: "clippy::verbose_bit_mask", 7221 label: "clippy::verbose_bit_mask",
6839 description: r##"Checks for bit masks that can be replaced by a call\nto `trailing_zeros`"##, 7222 description: r##"Checks for bit masks that can be replaced by a call
7223to `trailing_zeros`"##,
6840 }, 7224 },
6841 Lint { 7225 Lint {
6842 label: "clippy::verbose_file_reads", 7226 label: "clippy::verbose_file_reads",
@@ -6848,11 +7232,13 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6848 }, 7232 },
6849 Lint { 7233 Lint {
6850 label: "clippy::while_immutable_condition", 7234 label: "clippy::while_immutable_condition",
6851 description: r##"Checks whether variables used within while loop condition\ncan be (and are) mutated in the body."##, 7235 description: r##"Checks whether variables used within while loop condition
7236can be (and are) mutated in the body."##,
6852 }, 7237 },
6853 Lint { 7238 Lint {
6854 label: "clippy::while_let_loop", 7239 label: "clippy::while_let_loop",
6855 description: r##"Detects `loop + match` combinations that are easier\nwritten as a `while let` loop."##, 7240 description: r##"Detects `loop + match` combinations that are easier
7241written as a `while let` loop."##,
6856 }, 7242 },
6857 Lint { 7243 Lint {
6858 label: "clippy::while_let_on_iterator", 7244 label: "clippy::while_let_on_iterator",
@@ -6880,11 +7266,14 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6880 }, 7266 },
6881 Lint { 7267 Lint {
6882 label: "clippy::write_with_newline", 7268 label: "clippy::write_with_newline",
6883 description: r##"This lint warns when you use `write!()` with a format\nstring that\nends in a newline."##, 7269 description: r##"This lint warns when you use `write!()` with a format
7270string that
7271ends in a newline."##,
6884 }, 7272 },
6885 Lint { 7273 Lint {
6886 label: "clippy::writeln_empty_string", 7274 label: "clippy::writeln_empty_string",
6887 description: r##"This lint warns when you use `writeln!(buf, \"\")` to\nprint a newline."##, 7275 description: r##"This lint warns when you use `writeln!(buf, )` to
7276print a newline."##,
6888 }, 7277 },
6889 Lint { 7278 Lint {
6890 label: "clippy::wrong_pub_self_convention", 7279 label: "clippy::wrong_pub_self_convention",
@@ -6892,11 +7281,33 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6892 }, 7281 },
6893 Lint { 7282 Lint {
6894 label: "clippy::wrong_self_convention", 7283 label: "clippy::wrong_self_convention",
6895 description: r##"Checks for methods with certain name prefixes and which\ndoesn't match how self is taken. The actual rules are:\n\n|Prefix |Postfix |`self` taken | `self` type |\n|-------|------------|-----------------------|--------------|\n|`as_` | none |`&self` or `&mut self` | any |\n|`from_`| none | none | any |\n|`into_`| none |`self` | any |\n|`is_` | none |`&self` or none | any |\n|`to_` | `_mut` |`&mut self` | any |\n|`to_` | not `_mut` |`self` | `Copy` |\n|`to_` | not `_mut` |`&self` | not `Copy` |\n\nNote: Clippy doesn't trigger methods with `to_` prefix in:\n- Traits definition.\nClippy can not tell if a type that implements a trait is `Copy` or not.\n- Traits implementation, when `&self` is taken.\nThe method signature is controlled by the trait and often `&self` is required for all types that implement the trait\n(see e.g. the `std::string::ToString` trait).\n\nPlease find more info here:\nhttps://rust-lang.github.io/api-guidelines/naming.html#ad-hoc-conversions-follow-as_-to_-into_-conventions-c-conv"##, 7284 description: r##"Checks for methods with certain name prefixes and which
7285doesn't match how self is taken. The actual rules are:
7286
7287|Prefix |Postfix |`self` taken | `self` type |
7288|-------|------------|-----------------------|--------------|
7289|`as_` | none |`&self` or `&mut self` | any |
7290|`from_`| none | none | any |
7291|`into_`| none |`self` | any |
7292|`is_` | none |`&self` or none | any |
7293|`to_` | `_mut` |`&mut self` | any |
7294|`to_` | not `_mut` |`self` | `Copy` |
7295|`to_` | not `_mut` |`&self` | not `Copy` |
7296
7297Note: Clippy doesn't trigger methods with `to_` prefix in:
7298- Traits definition.
7299Clippy can not tell if a type that implements a trait is `Copy` or not.
7300- Traits implementation, when `&self` is taken.
7301The method signature is controlled by the trait and often `&self` is required for all types that implement the trait
7302(see e.g. the `std::string::ToString` trait).
7303
7304Please find more info here:
7305https://rust-lang.github.io/api-guidelines/naming.html#ad-hoc-conversions-follow-as_-to_-into_-conventions-c-conv"##,
6896 }, 7306 },
6897 Lint { 7307 Lint {
6898 label: "clippy::wrong_transmute", 7308 label: "clippy::wrong_transmute",
6899 description: r##"Checks for transmutes that can't ever be correct on any\narchitecture."##, 7309 description: r##"Checks for transmutes that can't ever be correct on any
7310architecture."##,
6900 }, 7311 },
6901 Lint { label: "clippy::zero_divided_by_zero", description: r##"Checks for `0.0 / 0.0`."## }, 7312 Lint { label: "clippy::zero_divided_by_zero", description: r##"Checks for `0.0 / 0.0`."## },
6902 Lint { 7313 Lint {
@@ -6913,6 +7324,7 @@ pub const CLIPPY_LINTS: &[Lint] = &[
6913 }, 7324 },
6914 Lint { 7325 Lint {
6915 label: "clippy::zst_offset", 7326 label: "clippy::zst_offset",
6916 description: r##"Checks for `offset(_)`, `wrapping_`{`add`, `sub`}, etc. on raw pointers to\nzero-sized types"##, 7327 description: r##"Checks for `offset(_)`, `wrapping_`{`add`, `sub`}, etc. on raw pointers to
7328zero-sized types"##,
6917 }, 7329 },
6918]; 7330];
diff --git a/xtask/src/codegen/gen_lint_completions.rs b/xtask/src/codegen/gen_lint_completions.rs
index a28b6cb59..3b54b2489 100644
--- a/xtask/src/codegen/gen_lint_completions.rs
+++ b/xtask/src/codegen/gen_lint_completions.rs
@@ -27,7 +27,7 @@ pub(crate) fn generate_lint_completions() -> Result<()> {
27 generate_feature_descriptor(&mut contents, "./target/rust/src/doc/unstable-book/src".into())?; 27 generate_feature_descriptor(&mut contents, "./target/rust/src/doc/unstable-book/src".into())?;
28 contents.push('\n'); 28 contents.push('\n');
29 29
30 cmd!("curl http://rust-lang.github.io/rust-clippy/master/lints.json --output ./target/clippy_lints.json").run()?; 30 cmd!("curl https://rust-lang.github.io/rust-clippy/master/lints.json --output ./target/clippy_lints.json").run()?;
31 generate_descriptor_clippy(&mut contents, &Path::new("./target/clippy_lints.json"))?; 31 generate_descriptor_clippy(&mut contents, &Path::new("./target/clippy_lints.json"))?;
32 let contents = reformat(&contents)?; 32 let contents = reformat(&contents)?;
33 33
@@ -109,6 +109,10 @@ struct ClippyLint {
109 id: String, 109 id: String,
110} 110}
111 111
112fn unescape(s: &str) -> String {
113 s.replace(r#"\""#, "").replace(r#"\n"#, "\n").replace(r#"\r"#, "")
114}
115
112fn generate_descriptor_clippy(buf: &mut String, path: &Path) -> Result<()> { 116fn generate_descriptor_clippy(buf: &mut String, path: &Path) -> Result<()> {
113 let file_content = read_file(path)?; 117 let file_content = read_file(path)?;
114 let mut clippy_lints: Vec<ClippyLint> = vec![]; 118 let mut clippy_lints: Vec<ClippyLint> = vec![];
@@ -135,6 +139,7 @@ fn generate_descriptor_clippy(buf: &mut String, path: &Path) -> Result<()> {
135 .strip_prefix(prefix_to_strip) 139 .strip_prefix(prefix_to_strip)
136 .expect("should be prefixed by what it does") 140 .expect("should be prefixed by what it does")
137 .strip_suffix(suffix_to_strip) 141 .strip_suffix(suffix_to_strip)
142 .map(unescape)
138 .expect("should be suffixed by comma") 143 .expect("should be suffixed by comma")
139 .into(); 144 .into();
140 } 145 }
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 16:20:54 +0000