]>
Commit | Line | Data |
---|---|---|
e1599b0c XL |
1 | //! List of the accepted feature gates. |
2 | ||
ed00b5ec | 3 | use super::{to_nonzero, Feature}; |
dfeec247 | 4 | use rustc_span::symbol::sym; |
e1599b0c XL |
5 | |
6 | macro_rules! declare_features { | |
7 | ($( | |
4b012472 | 8 | $(#[doc = $doc:tt])* (accepted, $feature:ident, $ver:expr, $issue:expr), |
e1599b0c | 9 | )+) => { |
ed00b5ec | 10 | /// Formerly unstable features that have now been accepted (stabilized). |
e1599b0c | 11 | pub const ACCEPTED_FEATURES: &[Feature] = &[ |
ed00b5ec FG |
12 | $(Feature { |
13 | name: sym::$feature, | |
14 | since: $ver, | |
15 | issue: to_nonzero($issue), | |
ed00b5ec | 16 | }),+ |
e1599b0c XL |
17 | ]; |
18 | } | |
19 | } | |
20 | ||
dfeec247 | 21 | #[rustfmt::skip] |
e1599b0c XL |
22 | declare_features! ( |
23 | // ------------------------------------------------------------------------- | |
24 | // feature-group-start: for testing purposes | |
25 | // ------------------------------------------------------------------------- | |
26 | ||
27 | /// A temporary feature gate used to enable parser extensions needed | |
28 | /// to bootstrap fix for #5723. | |
4b012472 | 29 | (accepted, issue_5723_bootstrap, "1.0.0", None), |
e1599b0c XL |
30 | /// These are used to test this portion of the compiler, |
31 | /// they don't actually mean anything. | |
4b012472 | 32 | (accepted, test_accepted_feature, "1.0.0", None), |
3c0e092e XL |
33 | // !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! |
34 | // Features are listed in alphabetical order. Tidy will fail if you don't keep it this way. | |
35 | // !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! | |
e1599b0c XL |
36 | |
37 | // ------------------------------------------------------------------------- | |
38 | // feature-group-end: for testing purposes | |
39 | // ------------------------------------------------------------------------- | |
40 | ||
41 | // ------------------------------------------------------------------------- | |
42 | // feature-group-start: accepted features | |
43 | // ------------------------------------------------------------------------- | |
44 | ||
5e7ed085 | 45 | /// Allows `#[target_feature(...)]` on aarch64 platforms |
4b012472 | 46 | (accepted, aarch64_target_feature, "1.61.0", Some(44839)), |
9c376795 | 47 | /// Allows using the `efiapi` ABI. |
4b012472 | 48 | (accepted, abi_efiapi, "1.68.0", Some(65815)), |
3c0e092e XL |
49 | /// Allows the sysV64 ABI to be specified on all platforms |
50 | /// instead of just the platforms on which it is the C ABI. | |
4b012472 | 51 | (accepted, abi_sysv64, "1.24.0", Some(36167)), |
add651ee | 52 | /// Allows using the `thiscall` ABI. |
4b012472 | 53 | (accepted, abi_thiscall, "1.73.0", None), |
5e7ed085 | 54 | /// Allows using ADX intrinsics from `core::arch::{x86, x86_64}`. |
4b012472 | 55 | (accepted, adx_target_feature, "1.61.0", Some(44839)), |
2b03887a | 56 | /// Allows explicit discriminants on non-unit enum variants. |
4b012472 | 57 | (accepted, arbitrary_enum_discriminant, "1.66.0", Some(60553)), |
2b03887a | 58 | /// Allows using `sym` operands in inline assembly. |
4b012472 | 59 | (accepted, asm_sym, "1.66.0", Some(93333)), |
3c0e092e | 60 | /// Allows the definition of associated constants in `trait` or `impl` blocks. |
4b012472 | 61 | (accepted, associated_consts, "1.20.0", Some(29646)), |
e8be2606 FG |
62 | /// Allows the user of associated type bounds. |
63 | (accepted, associated_type_bounds, "1.79.0", Some(52662)), | |
e1599b0c | 64 | /// Allows using associated `type`s in `trait`s. |
4b012472 | 65 | (accepted, associated_types, "1.0.0", None), |
3c0e092e | 66 | /// Allows free and inherent `async fn`s, `async` blocks, and `<expr>.await` expressions. |
4b012472 | 67 | (accepted, async_await, "1.39.0", Some(50547)), |
ed00b5ec | 68 | /// Allows async functions to be declared, implemented, and used in traits. |
4b012472 | 69 | (accepted, async_fn_in_trait, "1.75.0", Some(91611)), |
3c0e092e | 70 | /// Allows all literals in attribute lists and values of key-value pairs. |
4b012472 | 71 | (accepted, attr_literals, "1.30.0", Some(34981)), |
e1599b0c | 72 | /// Allows overloading augmented assignment operations like `a += b`. |
4b012472 | 73 | (accepted, augmented_assignments, "1.8.0", Some(28235)), |
3c0e092e | 74 | /// Allows mixing bind-by-move in patterns and references to those identifiers in guards. |
4b012472 | 75 | (accepted, bind_by_move_pattern_guards, "1.39.0", Some(15287)), |
3c0e092e XL |
76 | /// Allows bindings in the subpattern of a binding pattern. |
77 | /// For example, you can write `x @ Some(y)`. | |
4b012472 | 78 | (accepted, bindings_after_at, "1.56.0", Some(65490)), |
e1599b0c | 79 | /// Allows empty structs and enum variants with braces. |
4b012472 | 80 | (accepted, braced_empty_structs, "1.8.0", Some(29720)), |
c0240ec0 FG |
81 | /// Allows `c"foo"` literals. |
82 | (accepted, c_str_literals, "1.77.0", Some(105723)), | |
3c0e092e | 83 | /// Allows `#[cfg_attr(predicate, multiple, attributes, here)]`. |
4b012472 | 84 | (accepted, cfg_attr_multi, "1.33.0", Some(54881)), |
3c0e092e | 85 | /// Allows the use of `#[cfg(doctest)]`, set when rustdoc is collecting doctests. |
4b012472 | 86 | (accepted, cfg_doctest, "1.40.0", Some(62210)), |
5099ac24 | 87 | /// Enables `#[cfg(panic = "...")]` config key. |
4b012472 | 88 | (accepted, cfg_panic, "1.60.0", Some(77443)), |
c620b35d FG |
89 | /// Allows `cfg(target_abi = "...")`. |
90 | (accepted, cfg_target_abi, "1.78.0", Some(80970)), | |
3c0e092e | 91 | /// Allows `cfg(target_feature = "...")`. |
4b012472 | 92 | (accepted, cfg_target_feature, "1.27.0", Some(29717)), |
3c0e092e | 93 | /// Allows `cfg(target_vendor = "...")`. |
4b012472 | 94 | (accepted, cfg_target_vendor, "1.33.0", Some(29718)), |
3c0e092e | 95 | /// Allows implementing `Clone` for closures where possible (RFC 2132). |
4b012472 | 96 | (accepted, clone_closures, "1.26.0", Some(44490)), |
e1599b0c | 97 | /// Allows coercing non capturing closures to function pointers. |
4b012472 | 98 | (accepted, closure_to_fn_coercion, "1.19.0", Some(39817)), |
353b0b11 | 99 | /// Allows using the CMPXCHG16B target feature. |
4b012472 | 100 | (accepted, cmpxchg16b_target_feature, "1.69.0", Some(44839)), |
e8be2606 FG |
101 | /// Allows use of the `#[collapse_debuginfo]` attribute. |
102 | (accepted, collapse_debuginfo, "1.79.0", Some(100758)), | |
e1599b0c | 103 | /// Allows usage of the `compile_error!` macro. |
4b012472 | 104 | (accepted, compile_error, "1.20.0", Some(40872)), |
3c0e092e | 105 | /// Allows `impl Trait` in function return types. |
4b012472 | 106 | (accepted, conservative_impl_trait, "1.26.0", Some(34511)), |
3c0e092e | 107 | /// Allows calling constructor functions in `const fn`. |
4b012472 | 108 | (accepted, const_constructor, "1.40.0", Some(61456)), |
5e7ed085 | 109 | /// Allows using and casting function pointers in a `const fn`. |
4b012472 | 110 | (accepted, const_fn_fn_ptr_basics, "1.61.0", Some(57563)), |
5e7ed085 | 111 | /// Allows trait bounds in `const fn`. |
4b012472 | 112 | (accepted, const_fn_trait_bound, "1.61.0", Some(93706)), |
3c0e092e | 113 | /// Allows calling `transmute` in const fn |
4b012472 | 114 | (accepted, const_fn_transmute, "1.56.0", Some(53605)), |
3c0e092e | 115 | /// Allows accessing fields of unions inside `const` functions. |
4b012472 | 116 | (accepted, const_fn_union, "1.56.0", Some(51909)), |
3c0e092e | 117 | /// Allows unsizing coercions in `const fn`. |
4b012472 | 118 | (accepted, const_fn_unsize, "1.54.0", Some(64992)), |
a2a8927a | 119 | /// Allows const generics to have default values (e.g. `struct Foo<const N: usize = 3>(...);`). |
4b012472 | 120 | (accepted, const_generics_defaults, "1.59.0", Some(44580)), |
3c0e092e | 121 | /// Allows the use of `if` and `match` in constants. |
4b012472 | 122 | (accepted, const_if_match, "1.46.0", Some(49146)), |
5e7ed085 | 123 | /// Allows argument and return position `impl Trait` in a `const fn`. |
4b012472 | 124 | (accepted, const_impl_trait, "1.61.0", Some(77463)), |
e1599b0c | 125 | /// Allows indexing into constant arrays. |
4b012472 | 126 | (accepted, const_indexing, "1.26.0", Some(29947)), |
3c0e092e XL |
127 | /// Allows let bindings, assignments and destructuring in `const` functions and constants. |
128 | /// As long as control flow is not implemented in const eval, `&&` and `||` may not be used | |
129 | /// at the same time as let bindings. | |
4b012472 | 130 | (accepted, const_let, "1.33.0", Some(48821)), |
3c0e092e | 131 | /// Allows the use of `loop` and `while` in constants. |
4b012472 | 132 | (accepted, const_loop, "1.46.0", Some(52000)), |
3c0e092e | 133 | /// Allows panicking during const eval (producing compile-time errors). |
4b012472 | 134 | (accepted, const_panic, "1.57.0", Some(51999)), |
3c0e092e | 135 | /// Allows dereferencing raw pointers during const eval. |
4b012472 | 136 | (accepted, const_raw_ptr_deref, "1.58.0", Some(51911)), |
e1599b0c | 137 | /// Allows implementing `Copy` for closures where possible (RFC 2132). |
4b012472 | 138 | (accepted, copy_closures, "1.26.0", Some(44490)), |
e1599b0c | 139 | /// Allows `crate` in paths. |
4b012472 | 140 | (accepted, crate_in_paths, "1.30.0", Some(45477)), |
31ef2f64 FG |
141 | /// Allows users to provide classes for fenced code block using `class:classname`. |
142 | (accepted, custom_code_classes_in_docs, "1.80.0", Some(79483)), | |
49aad941 | 143 | /// Allows using `#[debugger_visualizer]` attribute. |
4b012472 | 144 | (accepted, debugger_visualizer, "1.71.0", Some(95939)), |
9c376795 | 145 | /// Allows rustc to inject a default alloc_error_handler |
4b012472 | 146 | (accepted, default_alloc_error_handler, "1.68.0", Some(66741)), |
3c0e092e | 147 | /// Allows using assigning a default type to type parameters in algebraic data type definitions. |
4b012472 | 148 | (accepted, default_type_params, "1.0.0", None), |
3c0e092e | 149 | /// Allows `#[deprecated]` attribute. |
4b012472 | 150 | (accepted, deprecated, "1.9.0", Some(29935)), |
04454e1e | 151 | /// Allows `#[derive(Default)]` and `#[default]` on enums. |
4b012472 | 152 | (accepted, derive_default_enum, "1.62.0", Some(86985)), |
a2a8927a | 153 | /// Allows the use of destructuring assignments. |
4b012472 | 154 | (accepted, destructuring_assignment, "1.59.0", Some(71126)), |
c620b35d FG |
155 | /// Allows using the `#[diagnostic]` attribute tool namespace |
156 | (accepted, diagnostic_namespace, "1.78.0", Some(111996)), | |
3c0e092e | 157 | /// Allows `#[doc(alias = "...")]`. |
4b012472 | 158 | (accepted, doc_alias, "1.48.0", Some(50146)), |
3c0e092e | 159 | /// Allows `..` in tuple (struct) patterns. |
4b012472 | 160 | (accepted, dotdot_in_tuple_patterns, "1.14.0", Some(33627)), |
3c0e092e | 161 | /// Allows `..=` in patterns (RFC 1192). |
4b012472 | 162 | (accepted, dotdoteq_in_patterns, "1.26.0", Some(28237)), |
3c0e092e | 163 | /// Allows `Drop` types in constants (RFC 1440). |
4b012472 | 164 | (accepted, drop_types_in_const, "1.22.0", Some(33156)), |
3c0e092e | 165 | /// Allows using `dyn Trait` as a syntax for trait objects. |
4b012472 | 166 | (accepted, dyn_trait, "1.27.0", Some(44662)), |
31ef2f64 FG |
167 | /// Allows `X..Y` patterns. |
168 | (accepted, exclusive_range_pattern, "1.80.0", Some(37854)), | |
3c0e092e | 169 | /// Allows integer match exhaustiveness checking (RFC 2591). |
4b012472 | 170 | (accepted, exhaustive_integer_patterns, "1.33.0", Some(50907)), |
923072b8 | 171 | /// Allows explicit generic arguments specification with `impl Trait` present. |
4b012472 | 172 | (accepted, explicit_generic_args_with_impl_trait, "1.63.0", Some(83701)), |
3c0e092e | 173 | /// Allows arbitrary expressions in key-value attributes at parse time. |
4b012472 | 174 | (accepted, extended_key_value_attributes, "1.54.0", Some(78835)), |
e1599b0c | 175 | /// Allows resolving absolute paths as paths from other crates. |
4b012472 | 176 | (accepted, extern_absolute_paths, "1.30.0", Some(44660)), |
3c0e092e | 177 | /// Allows `extern crate foo as bar;`. This puts `bar` into extern prelude. |
4b012472 | 178 | (accepted, extern_crate_item_prelude, "1.31.0", Some(55599)), |
3c0e092e XL |
179 | /// Allows `extern crate self as foo;`. |
180 | /// This puts local crate root into extern prelude under name `foo`. | |
4b012472 | 181 | (accepted, extern_crate_self, "1.34.0", Some(56409)), |
e1599b0c | 182 | /// Allows access to crate names passed via `--extern` through prelude. |
4b012472 | 183 | (accepted, extern_prelude, "1.30.0", Some(44660)), |
9c376795 | 184 | /// Allows using F16C intrinsics from `core::arch::{x86, x86_64}`. |
4b012472 | 185 | (accepted, f16c_target_feature, "1.68.0", Some(44839)), |
3c0e092e | 186 | /// Allows field shorthands (`x` meaning `x: x`) in struct literal expressions. |
4b012472 | 187 | (accepted, field_init_shorthand, "1.17.0", Some(37340)), |
3c0e092e | 188 | /// Allows `#[must_use]` on functions, and introduces must-use operators (RFC 1940). |
4b012472 | 189 | (accepted, fn_must_use, "1.27.0", Some(43302)), |
3c0e092e | 190 | /// Allows capturing variables in scope using format_args! |
4b012472 | 191 | (accepted, format_args_capture, "1.58.0", Some(67984)), |
f2b60f7d | 192 | /// Allows associated types to be generic, e.g., `type Foo<T>;` (RFC 1598). |
4b012472 | 193 | (accepted, generic_associated_types, "1.65.0", Some(44265)), |
3c0e092e | 194 | /// Allows attributes on lifetime/type formal parameters in generics (RFC 1327). |
4b012472 | 195 | (accepted, generic_param_attrs, "1.27.0", Some(48848)), |
3c0e092e | 196 | /// Allows the `#[global_allocator]` attribute. |
4b012472 | 197 | (accepted, global_allocator, "1.28.0", Some(27389)), |
3c0e092e | 198 | // FIXME: explain `globs`. |
4b012472 | 199 | (accepted, globs, "1.0.0", None), |
2b03887a | 200 | /// Allows using `..=X` as a pattern. |
4b012472 | 201 | (accepted, half_open_range_patterns, "1.66.0", Some(67264)), |
3c0e092e | 202 | /// Allows using the `u128` and `i128` types. |
4b012472 | 203 | (accepted, i128_type, "1.26.0", Some(35118)), |
3c0e092e | 204 | /// Allows the use of `if let` expressions. |
4b012472 | 205 | (accepted, if_let, "1.0.0", None), |
3c0e092e | 206 | /// Allows top level or-patterns (`p | q`) in `if let` and `while let`. |
4b012472 | 207 | (accepted, if_while_or_patterns, "1.33.0", Some(48215)), |
e1599b0c XL |
208 | /// Allows lifetime elision in `impl` headers. For example: |
209 | /// + `impl<I:Iterator> Iterator for &mut Iterator` | |
210 | /// + `impl Debug for Foo<'_>` | |
4b012472 | 211 | (accepted, impl_header_lifetime_elision, "1.31.0", Some(15872)), |
781aab86 | 212 | /// Allows referencing `Self` and projections in impl-trait. |
4b012472 | 213 | (accepted, impl_trait_projections, "1.74.0", Some(103532)), |
e8be2606 FG |
214 | /// Allows using imported `main` function |
215 | (accepted, imported_main, "1.79.0", Some(28937)), | |
3c0e092e | 216 | /// Allows using `a..=b` and `..=b` as inclusive range syntaxes. |
4b012472 | 217 | (accepted, inclusive_range_syntax, "1.26.0", Some(28237)), |
3c0e092e | 218 | /// Allows inferring outlives requirements (RFC 2093). |
4b012472 | 219 | (accepted, infer_outlives_requirements, "1.30.0", Some(44493)), |
e8be2606 FG |
220 | /// Allow anonymous constants from an inline `const` block |
221 | (accepted, inline_const, "1.79.0", Some(76001)), | |
e1599b0c | 222 | /// Allows irrefutable patterns in `if let` and `while let` statements (RFC 2086). |
4b012472 | 223 | (accepted, irrefutable_let_patterns, "1.33.0", Some(44495)), |
487cf647 | 224 | /// Allows `#[instruction_set(_)]` attribute. |
4b012472 | 225 | (accepted, isa_attribute, "1.67.0", Some(74727)), |
3c0e092e XL |
226 | /// Allows some increased flexibility in the name resolution rules, |
227 | /// especially around globs and shadowing (RFC 1560). | |
4b012472 | 228 | (accepted, item_like_imports, "1.15.0", Some(35120)), |
f2b60f7d | 229 | /// Allows `'a: { break 'a; }`. |
4b012472 | 230 | (accepted, label_break_value, "1.65.0", Some(48594)), |
f2b60f7d | 231 | /// Allows `let...else` statements. |
4b012472 | 232 | (accepted, let_else, "1.65.0", Some(87335)), |
3c0e092e | 233 | /// Allows `break {expr}` with a value inside `loop`s. |
4b012472 | 234 | (accepted, loop_break_value, "1.19.0", Some(37339)), |
3c0e092e | 235 | /// Allows use of `?` as the Kleene "at most one" operator in macros. |
4b012472 | 236 | (accepted, macro_at_most_once_rep, "1.32.0", Some(48075)), |
3c0e092e | 237 | /// Allows macro attributes to observe output of `#[derive]`. |
4b012472 | 238 | (accepted, macro_attributes_in_derive_output, "1.57.0", Some(81119)), |
3c0e092e | 239 | /// Allows use of the `:lifetime` macro fragment specifier. |
4b012472 | 240 | (accepted, macro_lifetime_matcher, "1.27.0", Some(34303)), |
3c0e092e | 241 | /// Allows use of the `:literal` macro fragment specifier (RFC 1576). |
4b012472 | 242 | (accepted, macro_literal_matcher, "1.32.0", Some(35625)), |
3c0e092e | 243 | /// Allows `macro_rules!` items. |
4b012472 | 244 | (accepted, macro_rules, "1.0.0", None), |
3c0e092e | 245 | /// Allows use of the `:vis` macro fragment specifier |
4b012472 | 246 | (accepted, macro_vis_matcher, "1.30.0", Some(41022)), |
e74abb32 | 247 | /// Allows macro invocations in `extern {}` blocks. |
4b012472 | 248 | (accepted, macros_in_extern, "1.40.0", Some(49476)), |
3c0e092e | 249 | /// Allows '|' at beginning of match arms (RFC 1925). |
4b012472 | 250 | (accepted, match_beginning_vert, "1.25.0", Some(44101)), |
3c0e092e | 251 | /// Allows default match binding modes (RFC 2005). |
4b012472 | 252 | (accepted, match_default_bindings, "1.26.0", Some(42640)), |
3c0e092e | 253 | /// Allows `impl Trait` with multiple unrelated lifetimes. |
4b012472 | 254 | (accepted, member_constraints, "1.54.0", Some(61997)), |
3c0e092e | 255 | /// Allows the definition of `const fn` functions. |
4b012472 | 256 | (accepted, min_const_fn, "1.31.0", Some(53555)), |
3c0e092e | 257 | /// The smallest useful subset of const generics. |
4b012472 | 258 | (accepted, min_const_generics, "1.51.0", Some(74878)), |
3c0e092e | 259 | /// Allows calling `const unsafe fn` inside `unsafe` blocks in `const fn` functions. |
4b012472 | 260 | (accepted, min_const_unsafe_fn, "1.33.0", Some(55607)), |
3c0e092e | 261 | /// Allows using `Self` and associated types in struct expressions and patterns. |
4b012472 | 262 | (accepted, more_struct_aliases, "1.16.0", Some(37544)), |
353b0b11 | 263 | /// Allows using the MOVBE target feature. |
4b012472 | 264 | (accepted, movbe_target_feature, "1.70.0", Some(44839)), |
3c0e092e XL |
265 | /// Allows patterns with concurrent by-move and by-ref bindings. |
266 | /// For example, you can write `Foo(a, ref b)` where `a` is by-move and `b` is by-ref. | |
4b012472 | 267 | (accepted, move_ref_pattern, "1.49.0", Some(68354)), |
5e7ed085 | 268 | /// Allows specifying modifiers in the link attribute: `#[link(modifiers = "...")]` |
4b012472 | 269 | (accepted, native_link_modifiers, "1.61.0", Some(81490)), |
923072b8 | 270 | /// Allows specifying the bundle link modifier |
4b012472 | 271 | (accepted, native_link_modifiers_bundle, "1.63.0", Some(81490)), |
487cf647 | 272 | /// Allows specifying the verbatim link modifier |
4b012472 | 273 | (accepted, native_link_modifiers_verbatim, "1.67.0", Some(81490)), |
5e7ed085 | 274 | /// Allows specifying the whole-archive link modifier |
4b012472 | 275 | (accepted, native_link_modifiers_whole_archive, "1.61.0", Some(81490)), |
923072b8 | 276 | /// Allows using non lexical lifetimes (RFC 2094). |
4b012472 | 277 | (accepted, nll, "1.63.0", Some(43234)), |
3c0e092e | 278 | /// Allows using `#![no_std]`. |
4b012472 | 279 | (accepted, no_std, "1.6.0", None), |
3c0e092e | 280 | /// Allows defining identifiers beyond ASCII. |
4b012472 | 281 | (accepted, non_ascii_idents, "1.53.0", Some(55467)), |
e74abb32 | 282 | /// Allows future-proofing enums/structs with the `#[non_exhaustive]` attribute (RFC 2008). |
4b012472 | 283 | (accepted, non_exhaustive, "1.40.0", Some(44109)), |
3c0e092e | 284 | /// Allows `foo.rs` as an alternative to `foo/mod.rs`. |
4b012472 | 285 | (accepted, non_modrs_mods, "1.30.0", Some(44660)), |
3c0e092e | 286 | /// Allows the use of or-patterns (e.g., `0 | 1`). |
4b012472 | 287 | (accepted, or_patterns, "1.53.0", Some(54883)), |
781aab86 | 288 | /// Allows using `+bundle,+whole-archive` link modifiers with native libs. |
4b012472 | 289 | (accepted, packed_bundled_libs, "1.74.0", Some(108081)), |
3c0e092e XL |
290 | /// Allows annotating functions conforming to `fn(&PanicInfo) -> !` with `#[panic_handler]`. |
291 | /// This defines the behavior of panics. | |
4b012472 | 292 | (accepted, panic_handler, "1.30.0", Some(44489)), |
3c0e092e | 293 | /// Allows attributes in formal function parameters. |
4b012472 | 294 | (accepted, param_attrs, "1.39.0", Some(60406)), |
3c0e092e | 295 | /// Allows parentheses in patterns. |
4b012472 | 296 | (accepted, pattern_parentheses, "1.31.0", Some(51087)), |
3c0e092e | 297 | /// Allows procedural macros in `proc-macro` crates. |
4b012472 | 298 | (accepted, proc_macro, "1.29.0", Some(38356)), |
3c0e092e | 299 | /// Allows multi-segment paths in attributes and derives. |
4b012472 | 300 | (accepted, proc_macro_path_invoc, "1.30.0", Some(38356)), |
3c0e092e | 301 | /// Allows `pub(restricted)` visibilities (RFC 1422). |
4b012472 | 302 | (accepted, pub_restricted, "1.18.0", Some(32409)), |
3c0e092e | 303 | /// Allows use of the postfix `?` operator in expressions. |
4b012472 | 304 | (accepted, question_mark, "1.13.0", Some(31436)), |
49aad941 | 305 | /// Allows the use of raw-dylibs (RFC 2627). |
4b012472 | 306 | (accepted, raw_dylib, "1.71.0", Some(58713)), |
3c0e092e | 307 | /// Allows keywords to be escaped for use as identifiers. |
4b012472 | 308 | (accepted, raw_identifiers, "1.30.0", Some(48589)), |
60c5eb7d XL |
309 | /// Allows relaxing the coherence rules such that |
310 | /// `impl<T> ForeignTrait<LocalType> for ForeignType<T>` is permitted. | |
4b012472 | 311 | (accepted, re_rebalance_coherence, "1.41.0", Some(55437)), |
3c0e092e | 312 | /// Allows numeric fields in struct expressions and patterns. |
4b012472 | 313 | (accepted, relaxed_adts, "1.19.0", Some(35626)), |
3c0e092e | 314 | /// Lessens the requirements for structs to implement `Unsize`. |
4b012472 | 315 | (accepted, relaxed_struct_unsize, "1.58.0", Some(81793)), |
3c0e092e | 316 | /// Allows `repr(align(16))` struct attribute (RFC 1358). |
4b012472 | 317 | (accepted, repr_align, "1.25.0", Some(33626)), |
3c0e092e XL |
318 | /// Allows using `#[repr(align(X))]` on enums with equivalent semantics |
319 | /// to wrapping an enum in a wrapper struct with `#[repr(align(X))]`. | |
4b012472 | 320 | (accepted, repr_align_enum, "1.37.0", Some(57996)), |
3c0e092e | 321 | /// Allows `#[repr(packed(N))]` attribute on structs. |
4b012472 | 322 | (accepted, repr_packed, "1.33.0", Some(33158)), |
3c0e092e | 323 | /// Allows `#[repr(transparent)]` attribute on newtype structs. |
4b012472 | 324 | (accepted, repr_transparent, "1.28.0", Some(43036)), |
ed00b5ec | 325 | /// Allows return-position `impl Trait` in traits. |
4b012472 | 326 | (accepted, return_position_impl_trait_in_trait, "1.75.0", Some(91611)), |
3c0e092e | 327 | /// Allows code like `let x: &'static u32 = &42` to work (RFC 1414). |
4b012472 | 328 | (accepted, rvalue_static_promotion, "1.21.0", Some(38865)), |
3c0e092e | 329 | /// Allows `Self` in type definitions (RFC 2300). |
4b012472 | 330 | (accepted, self_in_typedefs, "1.32.0", Some(49303)), |
3c0e092e | 331 | /// Allows `Self` struct constructor (RFC 2302). |
4b012472 | 332 | (accepted, self_struct_ctor, "1.32.0", Some(51994)), |
dfeec247 | 333 | /// Allows using subslice patterns, `[a, .., b]` and `[a, xs @ .., b]`. |
4b012472 | 334 | (accepted, slice_patterns, "1.42.0", Some(62254)), |
3c0e092e | 335 | /// Allows use of `&foo[a..b]` as a slicing syntax. |
4b012472 | 336 | (accepted, slicing_syntax, "1.0.0", None), |
3c0e092e | 337 | /// Allows elision of `'static` lifetimes in `static`s and `const`s. |
4b012472 | 338 | (accepted, static_in_const, "1.17.0", Some(35897)), |
3c0e092e | 339 | /// Allows the definition recursive static items. |
4b012472 | 340 | (accepted, static_recursion, "1.17.0", Some(29719)), |
3c0e092e | 341 | /// Allows attributes on struct literal fields. |
4b012472 | 342 | (accepted, struct_field_attributes, "1.20.0", Some(38814)), |
3c0e092e | 343 | /// Allows struct variants `Foo { baz: u8, .. }` in enums (RFC 418). |
4b012472 | 344 | (accepted, struct_variant, "1.0.0", None), |
3c0e092e | 345 | /// Allows `#[target_feature(...)]`. |
4b012472 | 346 | (accepted, target_feature, "1.27.0", None), |
3c0e092e | 347 | /// Allows `fn main()` with return types which implements `Termination` (RFC 1937). |
4b012472 | 348 | (accepted, termination_trait, "1.26.0", Some(43301)), |
3c0e092e | 349 | /// Allows `#[test]` functions where the return type implements `Termination` (RFC 1937). |
4b012472 | 350 | (accepted, termination_trait_test, "1.27.0", Some(48854)), |
3c0e092e | 351 | /// Allows attributes scoped to tools. |
4b012472 | 352 | (accepted, tool_attributes, "1.30.0", Some(44690)), |
3c0e092e | 353 | /// Allows scoped lints. |
4b012472 | 354 | (accepted, tool_lints, "1.31.0", Some(44690)), |
f035d41b XL |
355 | /// Allows `#[track_caller]` to be used which provides |
356 | /// accurate caller location reporting during panic (RFC 2091). | |
4b012472 | 357 | (accepted, track_caller, "1.46.0", Some(47809)), |
3c0e092e | 358 | /// Allows #[repr(transparent)] on univariant enums (RFC 2645). |
4b012472 | 359 | (accepted, transparent_enums, "1.42.0", Some(60405)), |
3c0e092e | 360 | /// Allows indexing tuples. |
4b012472 | 361 | (accepted, tuple_indexing, "1.0.0", None), |
3c0e092e | 362 | /// Allows paths to enum variants on type aliases including `Self`. |
4b012472 | 363 | (accepted, type_alias_enum_variants, "1.37.0", Some(49683)), |
3c0e092e | 364 | /// Allows macros to appear in the type position. |
4b012472 | 365 | (accepted, type_macros, "1.13.0", Some(27245)), |
e8be2606 FG |
366 | /// Allows using type privacy lints (`private_interfaces`, `private_bounds`, `unnameable_types`). |
367 | (accepted, type_privacy_lints, "1.79.0", Some(48054)), | |
3c0e092e | 368 | /// Allows `const _: TYPE = VALUE`. |
4b012472 | 369 | (accepted, underscore_const_names, "1.37.0", Some(54912)), |
3c0e092e | 370 | /// Allows `use path as _;` and `extern crate c as _;`. |
4b012472 | 371 | (accepted, underscore_imports, "1.33.0", Some(48216)), |
3c0e092e | 372 | /// Allows `'_` placeholder lifetimes. |
4b012472 | 373 | (accepted, underscore_lifetimes, "1.26.0", Some(44524)), |
3c0e092e | 374 | /// Allows `use x::y;` to search `x` in the current scope. |
4b012472 | 375 | (accepted, uniform_paths, "1.32.0", Some(53130)), |
3c0e092e | 376 | /// Allows `impl Trait` in function arguments. |
4b012472 | 377 | (accepted, universal_impl_trait, "1.26.0", Some(34511)), |
3c0e092e | 378 | /// Allows arbitrary delimited token streams in non-macro attributes. |
4b012472 | 379 | (accepted, unrestricted_attribute_tokens, "1.34.0", Some(55208)), |
6a06907d | 380 | /// The `unsafe_op_in_unsafe_fn` lint (allowed by default): no longer treat an unsafe function as an unsafe block. |
4b012472 | 381 | (accepted, unsafe_block_in_unsafe_fn, "1.52.0", Some(71668)), |
3c0e092e XL |
382 | /// Allows importing and reexporting macros with `use`, |
383 | /// enables macro modularization in general. | |
4b012472 | 384 | (accepted, use_extern_macros, "1.30.0", Some(35896)), |
3c0e092e | 385 | /// Allows nested groups in `use` items (RFC 2128). |
4b012472 | 386 | (accepted, use_nested_groups, "1.25.0", Some(44494)), |
3c0e092e | 387 | /// Allows `#[used]` to preserve symbols (see llvm.compiler.used). |
4b012472 | 388 | (accepted, used, "1.30.0", Some(40289)), |
3c0e092e | 389 | /// Allows the use of `while let` expressions. |
4b012472 | 390 | (accepted, while_let, "1.0.0", None), |
3c0e092e | 391 | /// Allows `#![windows_subsystem]`. |
4b012472 | 392 | (accepted, windows_subsystem, "1.18.0", Some(37499)), |
3c0e092e XL |
393 | // !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! |
394 | // Features are listed in alphabetical order. Tidy will fail if you don't keep it this way. | |
395 | // !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! | |
e1599b0c XL |
396 | |
397 | // ------------------------------------------------------------------------- | |
398 | // feature-group-end: accepted features | |
399 | // ------------------------------------------------------------------------- | |
400 | ); |