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e1599b0c XL |
1 | //! List of the removed feature gates. |
2 | ||
1b1a35ee | 3 | use super::{to_nonzero, Feature, State}; |
dfeec247 | 4 | use rustc_span::symbol::sym; |
e1599b0c XL |
5 | |
6 | macro_rules! declare_features { | |
7 | ($( | |
8 | $(#[doc = $doc:tt])* (removed, $feature:ident, $ver:expr, $issue:expr, None, $reason:expr), | |
9 | )+) => { | |
10 | /// Represents unstable features which have since been removed (it was once Active) | |
11 | pub const REMOVED_FEATURES: &[Feature] = &[ | |
12 | $( | |
13 | Feature { | |
14 | state: State::Removed { reason: $reason }, | |
15 | name: sym::$feature, | |
16 | since: $ver, | |
1b1a35ee | 17 | issue: to_nonzero($issue), |
e1599b0c XL |
18 | edition: None, |
19 | description: concat!($($doc,)*), | |
20 | } | |
21 | ),+ | |
22 | ]; | |
23 | }; | |
24 | ||
25 | ($( | |
26 | $(#[doc = $doc:tt])* (stable_removed, $feature:ident, $ver:expr, $issue:expr, None), | |
27 | )+) => { | |
28 | /// Represents stable features which have since been removed (it was once Accepted) | |
29 | pub const STABLE_REMOVED_FEATURES: &[Feature] = &[ | |
30 | $( | |
31 | Feature { | |
32 | state: State::Stabilized { reason: None }, | |
33 | name: sym::$feature, | |
34 | since: $ver, | |
1b1a35ee | 35 | issue: to_nonzero($issue), |
e1599b0c XL |
36 | edition: None, |
37 | description: concat!($($doc,)*), | |
38 | } | |
39 | ),+ | |
40 | ]; | |
41 | }; | |
42 | } | |
43 | ||
dfeec247 | 44 | #[rustfmt::skip] |
e1599b0c XL |
45 | declare_features! ( |
46 | // ------------------------------------------------------------------------- | |
47 | // feature-group-start: removed features | |
48 | // ------------------------------------------------------------------------- | |
49 | ||
50 | (removed, import_shadowing, "1.0.0", None, None, None), | |
51 | (removed, managed_boxes, "1.0.0", None, None, None), | |
52 | /// Allows use of unary negate on unsigned integers, e.g., -e for e: u8 | |
53 | (removed, negate_unsigned, "1.0.0", Some(29645), None, None), | |
54 | (removed, reflect, "1.0.0", Some(27749), None, None), | |
55 | /// A way to temporarily opt out of opt in copy. This will *never* be accepted. | |
56 | (removed, opt_out_copy, "1.0.0", None, None, None), | |
57 | (removed, quad_precision_float, "1.0.0", None, None, None), | |
58 | (removed, struct_inherit, "1.0.0", None, None, None), | |
59 | (removed, test_removed_feature, "1.0.0", None, None, None), | |
60 | (removed, visible_private_types, "1.0.0", None, None, None), | |
61 | (removed, unsafe_no_drop_flag, "1.0.0", None, None, None), | |
62 | /// Allows using items which are missing stability attributes | |
63 | (removed, unmarked_api, "1.0.0", None, None, None), | |
64 | (removed, allocator, "1.0.0", None, None, None), | |
65 | (removed, simd, "1.0.0", Some(27731), None, | |
66 | Some("removed in favor of `#[repr(simd)]`")), | |
67 | (removed, advanced_slice_patterns, "1.0.0", Some(62254), None, | |
68 | Some("merged into `#![feature(slice_patterns)]`")), | |
69 | (removed, macro_reexport, "1.0.0", Some(29638), None, | |
70 | Some("subsumed by `pub use`")), | |
60c5eb7d XL |
71 | /// Allows using custom attributes (RFC 572). |
72 | (removed, custom_attribute, "1.0.0", Some(29642), None, | |
73 | Some("removed in favor of `#![register_tool]` and `#![register_attr]`")), | |
fc512014 XL |
74 | /// Allows features specific to OIBIT (now called auto traits). |
75 | /// Renamed to `auto_traits`. | |
76 | (removed, optin_builtin_traits, "1.0.0", Some(13231), None, | |
77 | Some("renamed to `auto_traits`")), | |
e1599b0c XL |
78 | (removed, pushpop_unsafe, "1.2.0", None, None, None), |
79 | (removed, needs_allocator, "1.4.0", Some(27389), None, | |
80 | Some("subsumed by `#![feature(allocator_internals)]`")), | |
dfeec247 XL |
81 | /// Allows identifying crates that contain sanitizer runtimes. |
82 | (removed, sanitizer_runtime, "1.17.0", None, None, None), | |
e1599b0c XL |
83 | (removed, proc_macro_mod, "1.27.0", Some(54727), None, |
84 | Some("subsumed by `#![feature(proc_macro_hygiene)]`")), | |
85 | (removed, proc_macro_expr, "1.27.0", Some(54727), None, | |
86 | Some("subsumed by `#![feature(proc_macro_hygiene)]`")), | |
87 | (removed, proc_macro_non_items, "1.27.0", Some(54727), None, | |
88 | Some("subsumed by `#![feature(proc_macro_hygiene)]`")), | |
89 | (removed, proc_macro_gen, "1.27.0", Some(54727), None, | |
90 | Some("subsumed by `#![feature(proc_macro_hygiene)]`")), | |
91 | (removed, panic_implementation, "1.28.0", Some(44489), None, | |
92 | Some("subsumed by `#[panic_handler]`")), | |
93 | /// Allows the use of `#[derive(Anything)]` as sugar for `#[derive_Anything]`. | |
94 | (removed, custom_derive, "1.32.0", Some(29644), None, | |
95 | Some("subsumed by `#[proc_macro_derive]`")), | |
96 | /// Paths of the form: `extern::foo::bar` | |
97 | (removed, extern_in_paths, "1.33.0", Some(55600), None, | |
98 | Some("subsumed by `::foo::bar` paths")), | |
99 | (removed, quote, "1.33.0", Some(29601), None, None), | |
5869c6ff XL |
100 | /// Allows `[x; N]` where `x` is a constant (RFC 2203). |
101 | (removed, const_in_array_repeat_expressions, "1.37.0", Some(49147), None, | |
102 | Some("removed due to causing promotable bugs")), | |
e1599b0c XL |
103 | /// Allows using `#[unsafe_destructor_blind_to_params]` (RFC 1238). |
104 | (removed, dropck_parametricity, "1.38.0", Some(28498), None, None), | |
105 | (removed, await_macro, "1.38.0", Some(50547), None, | |
106 | Some("subsumed by `.await` syntax")), | |
107 | /// Allows defining `existential type`s. | |
108 | (removed, existential_type, "1.38.0", Some(63063), None, | |
6a06907d | 109 | Some("removed in favor of `#![feature(min_type_alias_impl_trait)]`")), |
e1599b0c XL |
110 | /// Allows using the macros: |
111 | /// + `__diagnostic_used` | |
112 | /// + `__register_diagnostic` | |
113 | /// +`__build_diagnostic_array` | |
114 | (removed, rustc_diagnostic_macros, "1.38.0", None, None, None), | |
60c5eb7d XL |
115 | /// Allows using `#[on_unimplemented(..)]` on traits. |
116 | /// (Moved to `rustc_attrs`.) | |
117 | (removed, on_unimplemented, "1.40.0", None, None, None), | |
74b04a01 XL |
118 | /// Allows overlapping impls of marker traits. |
119 | (removed, overlapping_marker_traits, "1.42.0", Some(29864), None, | |
120 | Some("removed in favor of `#![feature(marker_trait_attr)]`")), | |
121 | /// Allows `#[no_debug]`. | |
122 | (removed, no_debug, "1.43.0", Some(29721), None, Some("removed due to lack of demand")), | |
f035d41b XL |
123 | /// Allows comparing raw pointers during const eval. |
124 | (removed, const_compare_raw_pointers, "1.46.0", Some(53020), None, | |
125 | Some("cannot be allowed in const eval in any meaningful way")), | |
126 | ||
e1599b0c XL |
127 | // ------------------------------------------------------------------------- |
128 | // feature-group-end: removed features | |
129 | // ------------------------------------------------------------------------- | |
130 | ); | |
131 | ||
dfeec247 | 132 | #[rustfmt::skip] |
e1599b0c XL |
133 | declare_features! ( |
134 | (stable_removed, no_stack_check, "1.0.0", None, None), | |
135 | ); |