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Use doc comments for feature gate descriptions
This is just in preparation for future usage of these texts.
This commit is contained in:
Pascal Hertleif
parent
8ca9c7bbe5
commit
c9619a4202
@ -3,7 +3,9 @@
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use crate::symbol::{Symbol, sym};
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macro_rules! declare_features {
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($((accepted, $feature: ident, $ver: expr, $issue: expr, None),)+) => {
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($(
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$(#[doc = $doc:tt])* (accepted, $feature:ident, $ver:expr, $issue:expr, None),
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)+) => {
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/// Those language feature has since been Accepted (it was once Active)
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pub const ACCEPTED_FEATURES: &[(Symbol, &str, Option<u32>, Option<&str>)] = &[
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$((sym::$feature, $ver, $issue, None)),+
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@ -16,11 +18,11 @@ declare_features! (
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// feature-group-start: for testing purposes
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// -------------------------------------------------------------------------
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// A temporary feature gate used to enable parser extensions needed
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// to bootstrap fix for #5723.
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/// A temporary feature gate used to enable parser extensions needed
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/// to bootstrap fix for #5723.
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(accepted, issue_5723_bootstrap, "1.0.0", None, None),
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// These are used to test this portion of the compiler,
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// they don't actually mean anything.
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/// These are used to test this portion of the compiler,
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/// they don't actually mean anything.
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(accepted, test_accepted_feature, "1.0.0", None, None),
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// -------------------------------------------------------------------------
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@ -31,203 +33,203 @@ declare_features! (
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// feature-group-start: accepted features
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// -------------------------------------------------------------------------
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// Allows using associated `type`s in `trait`s.
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/// Allows using associated `type`s in `trait`s.
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(accepted, associated_types, "1.0.0", None, None),
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// Allows using assigning a default type to type parameters in algebraic data type definitions.
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/// Allows using assigning a default type to type parameters in algebraic data type definitions.
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(accepted, default_type_params, "1.0.0", None, None),
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// FIXME: explain `globs`.
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(accepted, globs, "1.0.0", None, None),
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// Allows `macro_rules!` items.
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/// Allows `macro_rules!` items.
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(accepted, macro_rules, "1.0.0", None, None),
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// Allows use of `&foo[a..b]` as a slicing syntax.
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/// Allows use of `&foo[a..b]` as a slicing syntax.
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(accepted, slicing_syntax, "1.0.0", None, None),
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// Allows struct variants `Foo { baz: u8, .. }` in enums (RFC 418).
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/// Allows struct variants `Foo { baz: u8, .. }` in enums (RFC 418).
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(accepted, struct_variant, "1.0.0", None, None),
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// Allows indexing tuples.
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/// Allows indexing tuples.
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(accepted, tuple_indexing, "1.0.0", None, None),
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// Allows the use of `if let` expressions.
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/// Allows the use of `if let` expressions.
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(accepted, if_let, "1.0.0", None, None),
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// Allows the use of `while let` expressions.
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/// Allows the use of `while let` expressions.
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(accepted, while_let, "1.0.0", None, None),
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// Allows using `#![no_std]`.
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/// Allows using `#![no_std]`.
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(accepted, no_std, "1.6.0", None, None),
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// Allows overloading augmented assignment operations like `a += b`.
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/// Allows overloading augmented assignment operations like `a += b`.
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(accepted, augmented_assignments, "1.8.0", Some(28235), None),
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// Allows empty structs and enum variants with braces.
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/// Allows empty structs and enum variants with braces.
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(accepted, braced_empty_structs, "1.8.0", Some(29720), None),
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// Allows `#[deprecated]` attribute.
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/// Allows `#[deprecated]` attribute.
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(accepted, deprecated, "1.9.0", Some(29935), None),
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// Allows macros to appear in the type position.
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/// Allows macros to appear in the type position.
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(accepted, type_macros, "1.13.0", Some(27245), None),
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// Allows use of the postfix `?` operator in expressions.
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/// Allows use of the postfix `?` operator in expressions.
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(accepted, question_mark, "1.13.0", Some(31436), None),
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// Allows `..` in tuple (struct) patterns.
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/// Allows `..` in tuple (struct) patterns.
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(accepted, dotdot_in_tuple_patterns, "1.14.0", Some(33627), None),
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// Allows some increased flexibility in the name resolution rules,
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// especially around globs and shadowing (RFC 1560).
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/// Allows some increased flexibility in the name resolution rules,
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/// especially around globs and shadowing (RFC 1560).
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(accepted, item_like_imports, "1.15.0", Some(35120), None),
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// Allows using `Self` and associated types in struct expressions and patterns.
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/// Allows using `Self` and associated types in struct expressions and patterns.
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(accepted, more_struct_aliases, "1.16.0", Some(37544), None),
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// Allows elision of `'static` lifetimes in `static`s and `const`s.
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/// Allows elision of `'static` lifetimes in `static`s and `const`s.
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(accepted, static_in_const, "1.17.0", Some(35897), None),
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// Allows field shorthands (`x` meaning `x: x`) in struct literal expressions.
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/// Allows field shorthands (`x` meaning `x: x`) in struct literal expressions.
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(accepted, field_init_shorthand, "1.17.0", Some(37340), None),
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// Allows the definition recursive static items.
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/// Allows the definition recursive static items.
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(accepted, static_recursion, "1.17.0", Some(29719), None),
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// Allows `pub(restricted)` visibilities (RFC 1422).
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/// Allows `pub(restricted)` visibilities (RFC 1422).
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(accepted, pub_restricted, "1.18.0", Some(32409), None),
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// Allows `#![windows_subsystem]`.
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/// Allows `#![windows_subsystem]`.
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(accepted, windows_subsystem, "1.18.0", Some(37499), None),
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// Allows `break {expr}` with a value inside `loop`s.
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/// Allows `break {expr}` with a value inside `loop`s.
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(accepted, loop_break_value, "1.19.0", Some(37339), None),
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// Allows numeric fields in struct expressions and patterns.
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/// Allows numeric fields in struct expressions and patterns.
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(accepted, relaxed_adts, "1.19.0", Some(35626), None),
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// Allows coercing non capturing closures to function pointers.
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/// Allows coercing non capturing closures to function pointers.
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(accepted, closure_to_fn_coercion, "1.19.0", Some(39817), None),
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// Allows attributes on struct literal fields.
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/// Allows attributes on struct literal fields.
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(accepted, struct_field_attributes, "1.20.0", Some(38814), None),
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// Allows the definition of associated constants in `trait` or `impl` blocks.
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/// Allows the definition of associated constants in `trait` or `impl` blocks.
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(accepted, associated_consts, "1.20.0", Some(29646), None),
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// Allows usage of the `compile_error!` macro.
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/// Allows usage of the `compile_error!` macro.
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(accepted, compile_error, "1.20.0", Some(40872), None),
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// Allows code like `let x: &'static u32 = &42` to work (RFC 1414).
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/// Allows code like `let x: &'static u32 = &42` to work (RFC 1414).
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(accepted, rvalue_static_promotion, "1.21.0", Some(38865), None),
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// Allows `Drop` types in constants (RFC 1440).
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/// Allows `Drop` types in constants (RFC 1440).
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(accepted, drop_types_in_const, "1.22.0", Some(33156), None),
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// Allows the sysV64 ABI to be specified on all platforms
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// instead of just the platforms on which it is the C ABI.
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/// Allows the sysV64 ABI to be specified on all platforms
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/// instead of just the platforms on which it is the C ABI.
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(accepted, abi_sysv64, "1.24.0", Some(36167), None),
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// Allows `repr(align(16))` struct attribute (RFC 1358).
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/// Allows `repr(align(16))` struct attribute (RFC 1358).
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(accepted, repr_align, "1.25.0", Some(33626), None),
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// Allows '|' at beginning of match arms (RFC 1925).
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/// Allows '|' at beginning of match arms (RFC 1925).
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(accepted, match_beginning_vert, "1.25.0", Some(44101), None),
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// Allows nested groups in `use` items (RFC 2128).
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/// Allows nested groups in `use` items (RFC 2128).
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(accepted, use_nested_groups, "1.25.0", Some(44494), None),
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// Allows indexing into constant arrays.
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/// Allows indexing into constant arrays.
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(accepted, const_indexing, "1.26.0", Some(29947), None),
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// Allows using `a..=b` and `..=b` as inclusive range syntaxes.
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/// Allows using `a..=b` and `..=b` as inclusive range syntaxes.
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(accepted, inclusive_range_syntax, "1.26.0", Some(28237), None),
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// Allows `..=` in patterns (RFC 1192).
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/// Allows `..=` in patterns (RFC 1192).
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(accepted, dotdoteq_in_patterns, "1.26.0", Some(28237), None),
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// Allows `fn main()` with return types which implements `Termination` (RFC 1937).
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/// Allows `fn main()` with return types which implements `Termination` (RFC 1937).
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(accepted, termination_trait, "1.26.0", Some(43301), None),
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// Allows implementing `Clone` for closures where possible (RFC 2132).
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/// Allows implementing `Clone` for closures where possible (RFC 2132).
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(accepted, clone_closures, "1.26.0", Some(44490), None),
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// Allows implementing `Copy` for closures where possible (RFC 2132).
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/// Allows implementing `Copy` for closures where possible (RFC 2132).
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(accepted, copy_closures, "1.26.0", Some(44490), None),
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// Allows `impl Trait` in function arguments.
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/// Allows `impl Trait` in function arguments.
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(accepted, universal_impl_trait, "1.26.0", Some(34511), None),
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// Allows `impl Trait` in function return types.
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/// Allows `impl Trait` in function return types.
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(accepted, conservative_impl_trait, "1.26.0", Some(34511), None),
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// Allows using the `u128` and `i128` types.
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/// Allows using the `u128` and `i128` types.
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(accepted, i128_type, "1.26.0", Some(35118), None),
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// Allows default match binding modes (RFC 2005).
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/// Allows default match binding modes (RFC 2005).
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(accepted, match_default_bindings, "1.26.0", Some(42640), None),
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// Allows `'_` placeholder lifetimes.
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/// Allows `'_` placeholder lifetimes.
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(accepted, underscore_lifetimes, "1.26.0", Some(44524), None),
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// Allows attributes on lifetime/type formal parameters in generics (RFC 1327).
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/// Allows attributes on lifetime/type formal parameters in generics (RFC 1327).
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(accepted, generic_param_attrs, "1.27.0", Some(48848), None),
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// Allows `cfg(target_feature = "...")`.
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/// Allows `cfg(target_feature = "...")`.
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(accepted, cfg_target_feature, "1.27.0", Some(29717), None),
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// Allows `#[target_feature(...)]`.
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/// Allows `#[target_feature(...)]`.
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(accepted, target_feature, "1.27.0", None, None),
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// Allows using `dyn Trait` as a syntax for trait objects.
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/// Allows using `dyn Trait` as a syntax for trait objects.
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(accepted, dyn_trait, "1.27.0", Some(44662), None),
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// Allows `#[must_use]` on functions, and introduces must-use operators (RFC 1940).
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/// Allows `#[must_use]` on functions, and introduces must-use operators (RFC 1940).
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(accepted, fn_must_use, "1.27.0", Some(43302), None),
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// Allows use of the `:lifetime` macro fragment specifier.
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/// Allows use of the `:lifetime` macro fragment specifier.
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(accepted, macro_lifetime_matcher, "1.27.0", Some(34303), None),
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// Allows `#[test]` functions where the return type implements `Termination` (RFC 1937).
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/// Allows `#[test]` functions where the return type implements `Termination` (RFC 1937).
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(accepted, termination_trait_test, "1.27.0", Some(48854), None),
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// Allows the `#[global_allocator]` attribute.
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/// Allows the `#[global_allocator]` attribute.
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(accepted, global_allocator, "1.28.0", Some(27389), None),
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// Allows `#[repr(transparent)]` attribute on newtype structs.
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/// Allows `#[repr(transparent)]` attribute on newtype structs.
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(accepted, repr_transparent, "1.28.0", Some(43036), None),
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// Allows procedural macros in `proc-macro` crates.
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/// Allows procedural macros in `proc-macro` crates.
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(accepted, proc_macro, "1.29.0", Some(38356), None),
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// Allows `foo.rs` as an alternative to `foo/mod.rs`.
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/// Allows `foo.rs` as an alternative to `foo/mod.rs`.
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(accepted, non_modrs_mods, "1.30.0", Some(44660), None),
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// Allows use of the `:vis` macro fragment specifier
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/// Allows use of the `:vis` macro fragment specifier
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(accepted, macro_vis_matcher, "1.30.0", Some(41022), None),
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// Allows importing and reexporting macros with `use`,
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// enables macro modularization in general.
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/// Allows importing and reexporting macros with `use`,
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/// enables macro modularization in general.
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(accepted, use_extern_macros, "1.30.0", Some(35896), None),
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// Allows keywords to be escaped for use as identifiers.
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/// Allows keywords to be escaped for use as identifiers.
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(accepted, raw_identifiers, "1.30.0", Some(48589), None),
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// Allows attributes scoped to tools.
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/// Allows attributes scoped to tools.
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(accepted, tool_attributes, "1.30.0", Some(44690), None),
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// Allows multi-segment paths in attributes and derives.
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/// Allows multi-segment paths in attributes and derives.
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(accepted, proc_macro_path_invoc, "1.30.0", Some(38356), None),
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// Allows all literals in attribute lists and values of key-value pairs.
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/// Allows all literals in attribute lists and values of key-value pairs.
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(accepted, attr_literals, "1.30.0", Some(34981), None),
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// Allows inferring outlives requirements (RFC 2093).
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/// Allows inferring outlives requirements (RFC 2093).
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(accepted, infer_outlives_requirements, "1.30.0", Some(44493), None),
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// Allows annotating functions conforming to `fn(&PanicInfo) -> !` with `#[panic_handler]`.
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// This defines the behavior of panics.
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/// Allows annotating functions conforming to `fn(&PanicInfo) -> !` with `#[panic_handler]`.
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/// This defines the behavior of panics.
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(accepted, panic_handler, "1.30.0", Some(44489), None),
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// Allows `#[used]` to preserve symbols (see llvm.used).
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/// Allows `#[used]` to preserve symbols (see llvm.used).
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(accepted, used, "1.30.0", Some(40289), None),
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// Allows `crate` in paths.
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/// Allows `crate` in paths.
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(accepted, crate_in_paths, "1.30.0", Some(45477), None),
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// Allows resolving absolute paths as paths from other crates.
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/// Allows resolving absolute paths as paths from other crates.
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(accepted, extern_absolute_paths, "1.30.0", Some(44660), None),
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// Allows access to crate names passed via `--extern` through prelude.
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/// Allows access to crate names passed via `--extern` through prelude.
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(accepted, extern_prelude, "1.30.0", Some(44660), None),
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// Allows parentheses in patterns.
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/// Allows parentheses in patterns.
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(accepted, pattern_parentheses, "1.31.0", Some(51087), None),
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// Allows the definition of `const fn` functions.
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/// Allows the definition of `const fn` functions.
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(accepted, min_const_fn, "1.31.0", Some(53555), None),
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// Allows scoped lints.
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/// Allows scoped lints.
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(accepted, tool_lints, "1.31.0", Some(44690), None),
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// Allows lifetime elision in `impl` headers. For example:
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// + `impl<I:Iterator> Iterator for &mut Iterator`
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// + `impl Debug for Foo<'_>`
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/// Allows lifetime elision in `impl` headers. For example:
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/// + `impl<I:Iterator> Iterator for &mut Iterator`
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/// + `impl Debug for Foo<'_>`
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(accepted, impl_header_lifetime_elision, "1.31.0", Some(15872), None),
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// Allows `extern crate foo as bar;`. This puts `bar` into extern prelude.
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/// Allows `extern crate foo as bar;`. This puts `bar` into extern prelude.
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(accepted, extern_crate_item_prelude, "1.31.0", Some(55599), None),
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// Allows use of the `:literal` macro fragment specifier (RFC 1576).
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/// Allows use of the `:literal` macro fragment specifier (RFC 1576).
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(accepted, macro_literal_matcher, "1.32.0", Some(35625), None),
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// Allows use of `?` as the Kleene "at most one" operator in macros.
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/// Allows use of `?` as the Kleene "at most one" operator in macros.
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(accepted, macro_at_most_once_rep, "1.32.0", Some(48075), None),
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// Allows `Self` struct constructor (RFC 2302).
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/// Allows `Self` struct constructor (RFC 2302).
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(accepted, self_struct_ctor, "1.32.0", Some(51994), None),
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// Allows `Self` in type definitions (RFC 2300).
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/// Allows `Self` in type definitions (RFC 2300).
|
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(accepted, self_in_typedefs, "1.32.0", Some(49303), None),
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// Allows `use x::y;` to search `x` in the current scope.
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/// Allows `use x::y;` to search `x` in the current scope.
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(accepted, uniform_paths, "1.32.0", Some(53130), None),
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// Allows integer match exhaustiveness checking (RFC 2591).
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/// Allows integer match exhaustiveness checking (RFC 2591).
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(accepted, exhaustive_integer_patterns, "1.33.0", Some(50907), None),
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// Allows `use path as _;` and `extern crate c as _;`.
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/// Allows `use path as _;` and `extern crate c as _;`.
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(accepted, underscore_imports, "1.33.0", Some(48216), None),
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// Allows `#[repr(packed(N))]` attribute on structs.
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/// Allows `#[repr(packed(N))]` attribute on structs.
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(accepted, repr_packed, "1.33.0", Some(33158), None),
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// Allows irrefutable patterns in `if let` and `while let` statements (RFC 2086).
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/// Allows irrefutable patterns in `if let` and `while let` statements (RFC 2086).
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(accepted, irrefutable_let_patterns, "1.33.0", Some(44495), None),
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// Allows calling `const unsafe fn` inside `unsafe` blocks in `const fn` functions.
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/// Allows calling `const unsafe fn` inside `unsafe` blocks in `const fn` functions.
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(accepted, min_const_unsafe_fn, "1.33.0", Some(55607), None),
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// Allows let bindings, assignments and destructuring in `const` functions and constants.
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// As long as control flow is not implemented in const eval, `&&` and `||` may not be used
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// at the same time as let bindings.
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/// Allows let bindings, assignments and destructuring in `const` functions and constants.
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/// As long as control flow is not implemented in const eval, `&&` and `||` may not be used
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/// at the same time as let bindings.
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(accepted, const_let, "1.33.0", Some(48821), None),
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// Allows `#[cfg_attr(predicate, multiple, attributes, here)]`.
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/// Allows `#[cfg_attr(predicate, multiple, attributes, here)]`.
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(accepted, cfg_attr_multi, "1.33.0", Some(54881), None),
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// Allows top level or-patterns (`p | q`) in `if let` and `while let`.
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/// Allows top level or-patterns (`p | q`) in `if let` and `while let`.
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(accepted, if_while_or_patterns, "1.33.0", Some(48215), None),
|
||||
// Allows `cfg(target_vendor = "...")`.
|
||||
/// Allows `cfg(target_vendor = "...")`.
|
||||
(accepted, cfg_target_vendor, "1.33.0", Some(29718), None),
|
||||
// Allows `extern crate self as foo;`.
|
||||
// This puts local crate root into extern prelude under name `foo`.
|
||||
/// Allows `extern crate self as foo;`.
|
||||
/// This puts local crate root into extern prelude under name `foo`.
|
||||
(accepted, extern_crate_self, "1.34.0", Some(56409), None),
|
||||
// Allows arbitrary delimited token streams in non-macro attributes.
|
||||
/// Allows arbitrary delimited token streams in non-macro attributes.
|
||||
(accepted, unrestricted_attribute_tokens, "1.34.0", Some(55208), None),
|
||||
// Allows paths to enum variants on type aliases including `Self`.
|
||||
/// Allows paths to enum variants on type aliases including `Self`.
|
||||
(accepted, type_alias_enum_variants, "1.37.0", Some(49683), None),
|
||||
// Allows using `#[repr(align(X))]` on enums with equivalent semantics
|
||||
// to wrapping an enum in a wrapper struct with `#[repr(align(X))]`.
|
||||
/// Allows using `#[repr(align(X))]` on enums with equivalent semantics
|
||||
/// to wrapping an enum in a wrapper struct with `#[repr(align(X))]`.
|
||||
(accepted, repr_align_enum, "1.37.0", Some(57996), None),
|
||||
// Allows `const _: TYPE = VALUE`.
|
||||
/// Allows `const _: TYPE = VALUE`.
|
||||
(accepted, underscore_const_names, "1.37.0", Some(54912), None),
|
||||
// Allows free and inherent `async fn`s, `async` blocks, and `<expr>.await` expressions.
|
||||
/// Allows free and inherent `async fn`s, `async` blocks, and `<expr>.await` expressions.
|
||||
(accepted, async_await, "1.39.0", Some(50547), None),
|
||||
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
@ -3,6 +3,7 @@
|
||||
use crate::edition::Edition;
|
||||
use crate::symbol::{Symbol, sym};
|
||||
use syntax_pos::Span;
|
||||
use super::{State, Feature};
|
||||
|
||||
macro_rules! set {
|
||||
($field: ident) => {{
|
||||
@ -14,12 +15,24 @@ macro_rules! set {
|
||||
}
|
||||
|
||||
macro_rules! declare_features {
|
||||
($((active, $feature: ident, $ver: expr, $issue: expr, $edition: expr),)+) => {
|
||||
($(
|
||||
$(#[doc = $doc:tt])* (active, $feature:ident, $ver:expr, $issue:expr, $edition:expr),
|
||||
)+) => {
|
||||
/// Represents active features that are currently being implemented or
|
||||
/// currently being considered for addition/removal.
|
||||
pub const ACTIVE_FEATURES:
|
||||
&[(Symbol, &str, Option<u32>, Option<Edition>, fn(&mut Features, Span))] =
|
||||
&[$((sym::$feature, $ver, $issue, $edition, set!($feature))),+];
|
||||
&[Feature] =
|
||||
&[$(
|
||||
// (sym::$feature, $ver, $issue, $edition, set!($feature))
|
||||
Feature {
|
||||
state: State::Active { set: set!($feature) },
|
||||
name: sym::$feature,
|
||||
since: $ver,
|
||||
issue: $issue,
|
||||
edition: $edition,
|
||||
description: concat!($($doc,)*),
|
||||
}
|
||||
),+];
|
||||
|
||||
/// A set of features to be used by later passes.
|
||||
#[derive(Clone)]
|
||||
@ -28,7 +41,10 @@ macro_rules! declare_features {
|
||||
pub declared_lang_features: Vec<(Symbol, Span, Option<Symbol>)>,
|
||||
/// `#![feature]` attrs for non-language (library) features
|
||||
pub declared_lib_features: Vec<(Symbol, Span)>,
|
||||
$(pub $feature: bool),+
|
||||
$(
|
||||
$(#[doc = $doc])*
|
||||
pub $feature: bool
|
||||
),+
|
||||
}
|
||||
|
||||
impl Features {
|
||||
@ -58,7 +74,7 @@ macro_rules! declare_features {
|
||||
// stable (active).
|
||||
//
|
||||
// Note that the features are grouped into internal/user-facing and then
|
||||
// sorted by version inside those groups. This is inforced with tidy.
|
||||
// sorted by version inside those groups. This is enforced with tidy.
|
||||
//
|
||||
// N.B., `tools/tidy/src/features.rs` parses this information directly out of the
|
||||
// source, so take care when modifying it.
|
||||
@ -70,127 +86,127 @@ declare_features! (
|
||||
|
||||
// no-tracking-issue-start
|
||||
|
||||
// Allows using compiler's own crates.
|
||||
/// Allows using compiler's own crates.
|
||||
(active, rustc_private, "1.0.0", Some(27812), None),
|
||||
|
||||
// Allows using the `rust-intrinsic`'s "ABI".
|
||||
/// Allows using the `rust-intrinsic`'s "ABI".
|
||||
(active, intrinsics, "1.0.0", None, None),
|
||||
|
||||
// Allows using `#[lang = ".."]` attribute for linking items to special compiler logic.
|
||||
/// Allows using `#[lang = ".."]` attribute for linking items to special compiler logic.
|
||||
(active, lang_items, "1.0.0", None, None),
|
||||
|
||||
// Allows using the `#[stable]` and `#[unstable]` attributes.
|
||||
/// Allows using the `#[stable]` and `#[unstable]` attributes.
|
||||
(active, staged_api, "1.0.0", None, None),
|
||||
|
||||
// Allows using `#[allow_internal_unstable]`. This is an
|
||||
// attribute on `macro_rules!` and can't use the attribute handling
|
||||
// below (it has to be checked before expansion possibly makes
|
||||
// macros disappear).
|
||||
/// Allows using `#[allow_internal_unstable]`. This is an
|
||||
/// attribute on `macro_rules!` and can't use the attribute handling
|
||||
/// below (it has to be checked before expansion possibly makes
|
||||
/// macros disappear).
|
||||
(active, allow_internal_unstable, "1.0.0", None, None),
|
||||
|
||||
// Allows using `#[allow_internal_unsafe]`. This is an
|
||||
// attribute on `macro_rules!` and can't use the attribute handling
|
||||
// below (it has to be checked before expansion possibly makes
|
||||
// macros disappear).
|
||||
/// Allows using `#[allow_internal_unsafe]`. This is an
|
||||
/// attribute on `macro_rules!` and can't use the attribute handling
|
||||
/// below (it has to be checked before expansion possibly makes
|
||||
/// macros disappear).
|
||||
(active, allow_internal_unsafe, "1.0.0", None, None),
|
||||
|
||||
// Allows using the macros:
|
||||
// + `__diagnostic_used`
|
||||
// + `__register_diagnostic`
|
||||
// +`__build_diagnostic_array`
|
||||
/// Allows using the macros:
|
||||
/// + `__diagnostic_used`
|
||||
/// + `__register_diagnostic`
|
||||
/// +`__build_diagnostic_array`
|
||||
(active, rustc_diagnostic_macros, "1.0.0", None, None),
|
||||
|
||||
// Allows using `#[rustc_const_unstable(feature = "foo", ..)]` which
|
||||
// lets a function to be `const` when opted into with `#![feature(foo)]`.
|
||||
/// Allows using `#[rustc_const_unstable(feature = "foo", ..)]` which
|
||||
/// lets a function to be `const` when opted into with `#![feature(foo)]`.
|
||||
(active, rustc_const_unstable, "1.0.0", None, None),
|
||||
|
||||
// no-tracking-issue-end
|
||||
/// no-tracking-issue-end
|
||||
|
||||
// Allows using `#[link_name="llvm.*"]`.
|
||||
/// Allows using `#[link_name="llvm.*"]`.
|
||||
(active, link_llvm_intrinsics, "1.0.0", Some(29602), None),
|
||||
|
||||
// Allows using `rustc_*` attributes (RFC 572).
|
||||
/// Allows using `rustc_*` attributes (RFC 572).
|
||||
(active, rustc_attrs, "1.0.0", Some(29642), None),
|
||||
|
||||
// Allows using `#[on_unimplemented(..)]` on traits.
|
||||
/// Allows using `#[on_unimplemented(..)]` on traits.
|
||||
(active, on_unimplemented, "1.0.0", Some(29628), None),
|
||||
|
||||
// Allows using the `box $expr` syntax.
|
||||
/// Allows using the `box $expr` syntax.
|
||||
(active, box_syntax, "1.0.0", Some(49733), None),
|
||||
|
||||
// Allows using `#[main]` to replace the entrypoint `#[lang = "start"]` calls.
|
||||
/// Allows using `#[main]` to replace the entrypoint `#[lang = "start"]` calls.
|
||||
(active, main, "1.0.0", Some(29634), None),
|
||||
|
||||
// Allows using `#[start]` on a function indicating that it is the program entrypoint.
|
||||
/// Allows using `#[start]` on a function indicating that it is the program entrypoint.
|
||||
(active, start, "1.0.0", Some(29633), None),
|
||||
|
||||
// Allows using the `#[fundamental]` attribute.
|
||||
/// Allows using the `#[fundamental]` attribute.
|
||||
(active, fundamental, "1.0.0", Some(29635), None),
|
||||
|
||||
// Allows using the `rust-call` ABI.
|
||||
/// Allows using the `rust-call` ABI.
|
||||
(active, unboxed_closures, "1.0.0", Some(29625), None),
|
||||
|
||||
// Allows using the `#[linkage = ".."]` attribute.
|
||||
/// Allows using the `#[linkage = ".."]` attribute.
|
||||
(active, linkage, "1.0.0", Some(29603), None),
|
||||
|
||||
// Allows features specific to OIBIT (auto traits).
|
||||
/// Allows features specific to OIBIT (auto traits).
|
||||
(active, optin_builtin_traits, "1.0.0", Some(13231), None),
|
||||
|
||||
// Allows using `box` in patterns (RFC 469).
|
||||
/// Allows using `box` in patterns (RFC 469).
|
||||
(active, box_patterns, "1.0.0", Some(29641), None),
|
||||
|
||||
// no-tracking-issue-start
|
||||
|
||||
// Allows using `#[prelude_import]` on glob `use` items.
|
||||
/// Allows using `#[prelude_import]` on glob `use` items.
|
||||
(active, prelude_import, "1.2.0", None, None),
|
||||
|
||||
// no-tracking-issue-end
|
||||
|
||||
// no-tracking-issue-start
|
||||
|
||||
// Allows using `#[omit_gdb_pretty_printer_section]`.
|
||||
/// Allows using `#[omit_gdb_pretty_printer_section]`.
|
||||
(active, omit_gdb_pretty_printer_section, "1.5.0", None, None),
|
||||
|
||||
// Allows using the `vectorcall` ABI.
|
||||
/// Allows using the `vectorcall` ABI.
|
||||
(active, abi_vectorcall, "1.7.0", None, None),
|
||||
|
||||
// no-tracking-issue-end
|
||||
|
||||
// Allows using `#[structural_match]` which indicates that a type is structurally matchable.
|
||||
/// Allows using `#[structural_match]` which indicates that a type is structurally matchable.
|
||||
(active, structural_match, "1.8.0", Some(31434), None),
|
||||
|
||||
// Allows using the `may_dangle` attribute (RFC 1327).
|
||||
/// Allows using the `may_dangle` attribute (RFC 1327).
|
||||
(active, dropck_eyepatch, "1.10.0", Some(34761), None),
|
||||
|
||||
// Allows using the `#![panic_runtime]` attribute.
|
||||
/// Allows using the `#![panic_runtime]` attribute.
|
||||
(active, panic_runtime, "1.10.0", Some(32837), None),
|
||||
|
||||
// Allows declaring with `#![needs_panic_runtime]` that a panic runtime is needed.
|
||||
/// Allows declaring with `#![needs_panic_runtime]` that a panic runtime is needed.
|
||||
(active, needs_panic_runtime, "1.10.0", Some(32837), None),
|
||||
|
||||
// no-tracking-issue-start
|
||||
|
||||
// Allows identifying the `compiler_builtins` crate.
|
||||
/// Allows identifying the `compiler_builtins` crate.
|
||||
(active, compiler_builtins, "1.13.0", None, None),
|
||||
|
||||
// Allows using the `unadjusted` ABI; perma-unstable.
|
||||
/// Allows using the `unadjusted` ABI; perma-unstable.
|
||||
(active, abi_unadjusted, "1.16.0", None, None),
|
||||
|
||||
// Allows identifying crates that contain sanitizer runtimes.
|
||||
/// Allows identifying crates that contain sanitizer runtimes.
|
||||
(active, sanitizer_runtime, "1.17.0", None, None),
|
||||
|
||||
// Used to identify crates that contain the profiler runtime.
|
||||
/// Used to identify crates that contain the profiler runtime.
|
||||
(active, profiler_runtime, "1.18.0", None, None),
|
||||
|
||||
// Allows using the `thiscall` ABI.
|
||||
/// Allows using the `thiscall` ABI.
|
||||
(active, abi_thiscall, "1.19.0", None, None),
|
||||
|
||||
// Allows using `#![needs_allocator]`, an implementation detail of `#[global_allocator]`.
|
||||
/// Allows using `#![needs_allocator]`, an implementation detail of `#[global_allocator]`.
|
||||
(active, allocator_internals, "1.20.0", None, None),
|
||||
|
||||
// no-tracking-issue-end
|
||||
|
||||
// Added for testing E0705; perma-unstable.
|
||||
/// Added for testing E0705; perma-unstable.
|
||||
(active, test_2018_feature, "1.31.0", Some(0), Some(Edition::Edition2018)),
|
||||
|
||||
// -------------------------------------------------------------------------
|
||||
@ -228,281 +244,282 @@ declare_features! (
|
||||
// feature-group-start: actual feature gates
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
// Allows using the `#[link_args]` attribute.
|
||||
/// Allows using the `#[link_args]` attribute.
|
||||
(active, link_args, "1.0.0", Some(29596), None),
|
||||
|
||||
// Allows defining identifiers beyond ASCII.
|
||||
/// Allows defining identifiers beyond ASCII.
|
||||
(active, non_ascii_idents, "1.0.0", Some(55467), None),
|
||||
|
||||
// Allows using `#[plugin_registrar]` on functions.
|
||||
/// Allows using `#[plugin_registrar]` on functions.
|
||||
(active, plugin_registrar, "1.0.0", Some(29597), None),
|
||||
|
||||
// Allows using `#![plugin(myplugin)]`.
|
||||
/// Allows using `#![plugin(myplugin)]`.
|
||||
(active, plugin, "1.0.0", Some(29597), None),
|
||||
|
||||
// Allows using `#[thread_local]` on `static` items.
|
||||
/// Allows using `#[thread_local]` on `static` items.
|
||||
(active, thread_local, "1.0.0", Some(29594), None),
|
||||
|
||||
// Allows the use of SIMD types in functions declared in `extern` blocks.
|
||||
/// Allows the use of SIMD types in functions declared in `extern` blocks.
|
||||
(active, simd_ffi, "1.0.0", Some(27731), None),
|
||||
|
||||
// Allows using custom attributes (RFC 572).
|
||||
/// Allows using custom attributes (RFC 572).
|
||||
(active, custom_attribute, "1.0.0", Some(29642), None),
|
||||
|
||||
// Allows using non lexical lifetimes (RFC 2094).
|
||||
/// Allows using non lexical lifetimes (RFC 2094).
|
||||
(active, nll, "1.0.0", Some(43234), None),
|
||||
|
||||
// Allows using slice patterns.
|
||||
/// Allows using slice patterns.
|
||||
(active, slice_patterns, "1.0.0", Some(62254), None),
|
||||
|
||||
// Allows the definition of `const` functions with some advanced features.
|
||||
/// Allows the definition of `const` functions with some advanced features.
|
||||
(active, const_fn, "1.2.0", Some(57563), None),
|
||||
|
||||
// Allows associated type defaults.
|
||||
/// Allows associated type defaults.
|
||||
(active, associated_type_defaults, "1.2.0", Some(29661), None),
|
||||
|
||||
// Allows `#![no_core]`.
|
||||
/// Allows `#![no_core]`.
|
||||
(active, no_core, "1.3.0", Some(29639), None),
|
||||
|
||||
// Allows default type parameters to influence type inference.
|
||||
/// Allows default type parameters to influence type inference.
|
||||
(active, default_type_parameter_fallback, "1.3.0", Some(27336), None),
|
||||
|
||||
// Allows `repr(simd)` and importing the various simd intrinsics.
|
||||
/// Allows `repr(simd)` and importing the various simd intrinsics.
|
||||
(active, repr_simd, "1.4.0", Some(27731), None),
|
||||
|
||||
// Allows `extern "platform-intrinsic" { ... }`.
|
||||
/// Allows `extern "platform-intrinsic" { ... }`.
|
||||
(active, platform_intrinsics, "1.4.0", Some(27731), None),
|
||||
|
||||
// Allows `#[unwind(..)]`.
|
||||
//
|
||||
// Permits specifying whether a function should permit unwinding or abort on unwind.
|
||||
/// Allows `#[unwind(..)]`.
|
||||
///
|
||||
/// Permits specifying whether a function should permit unwinding or abort on unwind.
|
||||
(active, unwind_attributes, "1.4.0", Some(58760), None),
|
||||
|
||||
// Allows `#[no_debug]`.
|
||||
/// Allows `#[no_debug]`.
|
||||
(active, no_debug, "1.5.0", Some(29721), None),
|
||||
|
||||
// Allows attributes on expressions and non-item statements.
|
||||
/// Allows attributes on expressions and non-item statements.
|
||||
(active, stmt_expr_attributes, "1.6.0", Some(15701), None),
|
||||
|
||||
// Allows the use of type ascription in expressions.
|
||||
/// Allows the use of type ascription in expressions.
|
||||
(active, type_ascription, "1.6.0", Some(23416), None),
|
||||
|
||||
// Allows `cfg(target_thread_local)`.
|
||||
/// Allows `cfg(target_thread_local)`.
|
||||
(active, cfg_target_thread_local, "1.7.0", Some(29594), None),
|
||||
|
||||
// Allows specialization of implementations (RFC 1210).
|
||||
/// Allows specialization of implementations (RFC 1210).
|
||||
(active, specialization, "1.7.0", Some(31844), None),
|
||||
|
||||
// Allows using `#[naked]` on functions.
|
||||
/// Allows using `#[naked]` on functions.
|
||||
(active, naked_functions, "1.9.0", Some(32408), None),
|
||||
|
||||
// Allows `cfg(target_has_atomic = "...")`.
|
||||
/// Allows `cfg(target_has_atomic = "...")`.
|
||||
(active, cfg_target_has_atomic, "1.9.0", Some(32976), None),
|
||||
|
||||
// Allows `X..Y` patterns.
|
||||
/// Allows `X..Y` patterns.
|
||||
(active, exclusive_range_pattern, "1.11.0", Some(37854), None),
|
||||
|
||||
// Allows the `!` type. Does not imply 'exhaustive_patterns' (below) any more.
|
||||
/// Allows the `!` type. Does not imply 'exhaustive_patterns' (below) any more.
|
||||
(active, never_type, "1.13.0", Some(35121), None),
|
||||
|
||||
// Allows exhaustive pattern matching on types that contain uninhabited types.
|
||||
/// Allows exhaustive pattern matching on types that contain uninhabited types.
|
||||
(active, exhaustive_patterns, "1.13.0", Some(51085), None),
|
||||
|
||||
// Allows untagged unions `union U { ... }`.
|
||||
/// Allows untagged unions `union U { ... }`.
|
||||
(active, untagged_unions, "1.13.0", Some(32836), None),
|
||||
|
||||
// Allows `#[link(..., cfg(..))]`.
|
||||
/// Allows `#[link(..., cfg(..))]`.
|
||||
(active, link_cfg, "1.14.0", Some(37406), None),
|
||||
|
||||
// Allows `extern "ptx-*" fn()`.
|
||||
/// Allows `extern "ptx-*" fn()`.
|
||||
(active, abi_ptx, "1.15.0", Some(38788), None),
|
||||
|
||||
// Allows the `#[repr(i128)]` attribute for enums.
|
||||
/// Allows the `#[repr(i128)]` attribute for enums.
|
||||
(active, repr128, "1.16.0", Some(35118), None),
|
||||
|
||||
// Allows `#[link(kind="static-nobundle"...)]`.
|
||||
/// Allows `#[link(kind="static-nobundle"...)]`.
|
||||
(active, static_nobundle, "1.16.0", Some(37403), None),
|
||||
|
||||
// Allows `extern "msp430-interrupt" fn()`.
|
||||
/// Allows `extern "msp430-interrupt" fn()`.
|
||||
(active, abi_msp430_interrupt, "1.16.0", Some(38487), None),
|
||||
|
||||
// Allows declarative macros 2.0 (`macro`).
|
||||
/// Allows declarative macros 2.0 (`macro`).
|
||||
(active, decl_macro, "1.17.0", Some(39412), None),
|
||||
|
||||
// Allows `extern "x86-interrupt" fn()`.
|
||||
/// Allows `extern "x86-interrupt" fn()`.
|
||||
(active, abi_x86_interrupt, "1.17.0", Some(40180), None),
|
||||
|
||||
// Allows overlapping impls of marker traits.
|
||||
/// Allows overlapping impls of marker traits.
|
||||
(active, overlapping_marker_traits, "1.18.0", Some(29864), None),
|
||||
|
||||
// Allows a test to fail without failing the whole suite.
|
||||
/// Allows a test to fail without failing the whole suite.
|
||||
(active, allow_fail, "1.19.0", Some(46488), None),
|
||||
|
||||
// Allows unsized tuple coercion.
|
||||
/// Allows unsized tuple coercion.
|
||||
(active, unsized_tuple_coercion, "1.20.0", Some(42877), None),
|
||||
|
||||
// Allows defining generators.
|
||||
/// Allows defining generators.
|
||||
(active, generators, "1.21.0", Some(43122), None),
|
||||
|
||||
// Allows `#[doc(cfg(...))]`.
|
||||
/// Allows `#[doc(cfg(...))]`.
|
||||
(active, doc_cfg, "1.21.0", Some(43781), None),
|
||||
|
||||
// Allows `#[doc(masked)]`.
|
||||
/// Allows `#[doc(masked)]`.
|
||||
(active, doc_masked, "1.21.0", Some(44027), None),
|
||||
|
||||
// Allows `#[doc(spotlight)]`.
|
||||
/// Allows `#[doc(spotlight)]`.
|
||||
(active, doc_spotlight, "1.22.0", Some(45040), None),
|
||||
|
||||
// Allows `#[doc(include = "some-file")]`.
|
||||
/// Allows `#[doc(include = "some-file")]`.
|
||||
(active, external_doc, "1.22.0", Some(44732), None),
|
||||
|
||||
// Allows future-proofing enums/structs with the `#[non_exhaustive]` attribute (RFC 2008).
|
||||
/// Allows future-proofing enums/structs with the `#[non_exhaustive]` attribute (RFC 2008).
|
||||
(active, non_exhaustive, "1.22.0", Some(44109), None),
|
||||
|
||||
// Allows using `crate` as visibility modifier, synonymous with `pub(crate)`.
|
||||
/// Allows using `crate` as visibility modifier, synonymous with `pub(crate)`.
|
||||
(active, crate_visibility_modifier, "1.23.0", Some(53120), None),
|
||||
|
||||
// Allows defining `extern type`s.
|
||||
/// Allows defining `extern type`s.
|
||||
(active, extern_types, "1.23.0", Some(43467), None),
|
||||
|
||||
// Allows trait methods with arbitrary self types.
|
||||
/// Allows trait methods with arbitrary self types.
|
||||
(active, arbitrary_self_types, "1.23.0", Some(44874), None),
|
||||
|
||||
// Allows in-band quantification of lifetime bindings (e.g., `fn foo(x: &'a u8) -> &'a u8`).
|
||||
/// Allows in-band quantification of lifetime bindings (e.g., `fn foo(x: &'a u8) -> &'a u8`).
|
||||
(active, in_band_lifetimes, "1.23.0", Some(44524), None),
|
||||
|
||||
// Allows associated types to be generic, e.g., `type Foo<T>;` (RFC 1598).
|
||||
/// Allows associated types to be generic, e.g., `type Foo<T>;` (RFC 1598).
|
||||
(active, generic_associated_types, "1.23.0", Some(44265), None),
|
||||
|
||||
// Allows defining `trait X = A + B;` alias items.
|
||||
/// Allows defining `trait X = A + B;` alias items.
|
||||
(active, trait_alias, "1.24.0", Some(41517), None),
|
||||
|
||||
// Allows infering `'static` outlives requirements (RFC 2093).
|
||||
/// Allows infering `'static` outlives requirements (RFC 2093).
|
||||
(active, infer_static_outlives_requirements, "1.26.0", Some(54185), None),
|
||||
|
||||
// Allows macro invocations in `extern {}` blocks.
|
||||
/// Allows macro invocations in `extern {}` blocks.
|
||||
(active, macros_in_extern, "1.27.0", Some(49476), None),
|
||||
|
||||
// Allows accessing fields of unions inside `const` functions.
|
||||
/// Allows accessing fields of unions inside `const` functions.
|
||||
(active, const_fn_union, "1.27.0", Some(51909), None),
|
||||
|
||||
// Allows casting raw pointers to `usize` during const eval.
|
||||
/// Allows casting raw pointers to `usize` during const eval.
|
||||
(active, const_raw_ptr_to_usize_cast, "1.27.0", Some(51910), None),
|
||||
|
||||
// Allows dereferencing raw pointers during const eval.
|
||||
/// Allows dereferencing raw pointers during const eval.
|
||||
(active, const_raw_ptr_deref, "1.27.0", Some(51911), None),
|
||||
|
||||
// Allows comparing raw pointers during const eval.
|
||||
/// Allows comparing raw pointers during const eval.
|
||||
(active, const_compare_raw_pointers, "1.27.0", Some(53020), None),
|
||||
|
||||
// Allows `#[doc(alias = "...")]`.
|
||||
/// Allows `#[doc(alias = "...")]`.
|
||||
(active, doc_alias, "1.27.0", Some(50146), None),
|
||||
|
||||
// Allows inconsistent bounds in where clauses.
|
||||
/// Allows inconsistent bounds in where clauses.
|
||||
(active, trivial_bounds, "1.28.0", Some(48214), None),
|
||||
|
||||
// Allows `'a: { break 'a; }`.
|
||||
/// Allows `'a: { break 'a; }`.
|
||||
(active, label_break_value, "1.28.0", Some(48594), None),
|
||||
|
||||
// Allows using `#[doc(keyword = "...")]`.
|
||||
/// Allows using `#[doc(keyword = "...")]`.
|
||||
(active, doc_keyword, "1.28.0", Some(51315), None),
|
||||
|
||||
// Allows reinterpretation of the bits of a value of one type as another type during const eval.
|
||||
/// Allows reinterpretation of the bits of a value of one type as another
|
||||
/// type during const eval.
|
||||
(active, const_transmute, "1.29.0", Some(53605), None),
|
||||
|
||||
// Allows using `try {...}` expressions.
|
||||
/// Allows using `try {...}` expressions.
|
||||
(active, try_blocks, "1.29.0", Some(31436), None),
|
||||
|
||||
// Allows defining an `#[alloc_error_handler]`.
|
||||
/// Allows defining an `#[alloc_error_handler]`.
|
||||
(active, alloc_error_handler, "1.29.0", Some(51540), None),
|
||||
|
||||
// Allows using the `amdgpu-kernel` ABI.
|
||||
/// Allows using the `amdgpu-kernel` ABI.
|
||||
(active, abi_amdgpu_kernel, "1.29.0", Some(51575), None),
|
||||
|
||||
// Allows panicking during const eval (producing compile-time errors).
|
||||
/// Allows panicking during const eval (producing compile-time errors).
|
||||
(active, const_panic, "1.30.0", Some(51999), None),
|
||||
|
||||
// Allows `#[marker]` on certain traits allowing overlapping implementations.
|
||||
/// Allows `#[marker]` on certain traits allowing overlapping implementations.
|
||||
(active, marker_trait_attr, "1.30.0", Some(29864), None),
|
||||
|
||||
// Allows macro invocations on modules expressions and statements and
|
||||
// procedural macros to expand to non-items.
|
||||
/// Allows macro invocations on modules expressions and statements and
|
||||
/// procedural macros to expand to non-items.
|
||||
(active, proc_macro_hygiene, "1.30.0", Some(54727), None),
|
||||
|
||||
// Allows unsized rvalues at arguments and parameters.
|
||||
/// Allows unsized rvalues at arguments and parameters.
|
||||
(active, unsized_locals, "1.30.0", Some(48055), None),
|
||||
|
||||
// Allows custom test frameworks with `#![test_runner]` and `#[test_case]`.
|
||||
/// Allows custom test frameworks with `#![test_runner]` and `#[test_case]`.
|
||||
(active, custom_test_frameworks, "1.30.0", Some(50297), None),
|
||||
|
||||
// Allows non-builtin attributes in inner attribute position.
|
||||
/// Allows non-builtin attributes in inner attribute position.
|
||||
(active, custom_inner_attributes, "1.30.0", Some(54726), None),
|
||||
|
||||
// Allows mixing bind-by-move in patterns and references to those identifiers in guards.
|
||||
/// Allows mixing bind-by-move in patterns and references to those identifiers in guards.
|
||||
(active, bind_by_move_pattern_guards, "1.30.0", Some(15287), None),
|
||||
|
||||
// Allows `impl Trait` in bindings (`let`, `const`, `static`).
|
||||
/// Allows `impl Trait` in bindings (`let`, `const`, `static`).
|
||||
(active, impl_trait_in_bindings, "1.30.0", Some(63065), None),
|
||||
|
||||
// Allows using `reason` in lint attributes and the `#[expect(lint)]` lint check.
|
||||
/// Allows using `reason` in lint attributes and the `#[expect(lint)]` lint check.
|
||||
(active, lint_reasons, "1.31.0", Some(54503), None),
|
||||
|
||||
// Allows exhaustive integer pattern matching on `usize` and `isize`.
|
||||
/// Allows exhaustive integer pattern matching on `usize` and `isize`.
|
||||
(active, precise_pointer_size_matching, "1.32.0", Some(56354), None),
|
||||
|
||||
// Allows relaxing the coherence rules such that
|
||||
// `impl<T> ForeignTrait<LocalType> for ForeignType<T> is permitted.
|
||||
/// Allows relaxing the coherence rules such that
|
||||
/// `impl<T> ForeignTrait<LocalType> for ForeignType<T> is permitted.
|
||||
(active, re_rebalance_coherence, "1.32.0", Some(55437), None),
|
||||
|
||||
// Allows using `#[ffi_returns_twice]` on foreign functions.
|
||||
/// Allows using `#[ffi_returns_twice]` on foreign functions.
|
||||
(active, ffi_returns_twice, "1.34.0", Some(58314), None),
|
||||
|
||||
// Allows const generic types (e.g. `struct Foo<const N: usize>(...);`).
|
||||
/// Allows const generic types (e.g. `struct Foo<const N: usize>(...);`).
|
||||
(active, const_generics, "1.34.0", Some(44580), None),
|
||||
|
||||
// Allows using `#[optimize(X)]`.
|
||||
/// Allows using `#[optimize(X)]`.
|
||||
(active, optimize_attribute, "1.34.0", Some(54882), None),
|
||||
|
||||
// Allows using C-variadics.
|
||||
/// Allows using C-variadics.
|
||||
(active, c_variadic, "1.34.0", Some(44930), None),
|
||||
|
||||
// Allows the user of associated type bounds.
|
||||
/// Allows the user of associated type bounds.
|
||||
(active, associated_type_bounds, "1.34.0", Some(52662), None),
|
||||
|
||||
// Attributes on formal function params.
|
||||
/// Attributes on formal function params.
|
||||
(active, param_attrs, "1.36.0", Some(60406), None),
|
||||
|
||||
// Allows calling constructor functions in `const fn`.
|
||||
/// Allows calling constructor functions in `const fn`.
|
||||
(active, const_constructor, "1.37.0", Some(61456), None),
|
||||
|
||||
// Allows `if/while p && let q = r && ...` chains.
|
||||
/// Allows `if/while p && let q = r && ...` chains.
|
||||
(active, let_chains, "1.37.0", Some(53667), None),
|
||||
|
||||
// Allows #[repr(transparent)] on enums (RFC 2645).
|
||||
/// Allows #[repr(transparent)] on enums (RFC 2645).
|
||||
(active, transparent_enums, "1.37.0", Some(60405), None),
|
||||
|
||||
// Allows #[repr(transparent)] on unions (RFC 2645).
|
||||
/// Allows #[repr(transparent)] on unions (RFC 2645).
|
||||
(active, transparent_unions, "1.37.0", Some(60405), None),
|
||||
|
||||
// Allows explicit discriminants on non-unit enum variants.
|
||||
/// Allows explicit discriminants on non-unit enum variants.
|
||||
(active, arbitrary_enum_discriminant, "1.37.0", Some(60553), None),
|
||||
|
||||
// Allows `impl Trait` with multiple unrelated lifetimes.
|
||||
/// Allows `impl Trait` with multiple unrelated lifetimes.
|
||||
(active, member_constraints, "1.37.0", Some(61977), None),
|
||||
|
||||
// Allows `async || body` closures.
|
||||
/// Allows `async || body` closures.
|
||||
(active, async_closure, "1.37.0", Some(62290), None),
|
||||
|
||||
// Allows the use of `#[cfg(doctest)]`, set when rustdoc is collecting doctests
|
||||
/// Allows the use of `#[cfg(doctest)]`, set when rustdoc is collecting doctests
|
||||
(active, cfg_doctest, "1.37.0", Some(62210), None),
|
||||
|
||||
// Allows `[x; N]` where `x` is a constant (RFC 2203).
|
||||
/// Allows `[x; N]` where `x` is a constant (RFC 2203).
|
||||
(active, const_in_array_repeat_expressions, "1.37.0", Some(49147), None),
|
||||
|
||||
// Allows `impl Trait` to be used inside type aliases (RFC 2515).
|
||||
/// Allows `impl Trait` to be used inside type aliases (RFC 2515).
|
||||
(active, type_alias_impl_trait, "1.38.0", Some(63063), None),
|
||||
|
||||
// Allows the use of or-patterns, e.g. `0 | 1`.
|
||||
/// Allows the use of or-patterns, e.g. `0 | 1`.
|
||||
(active, or_patterns, "1.38.0", Some(54883), None),
|
||||
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
@ -3,14 +3,18 @@
|
||||
use crate::symbol::{Symbol, sym};
|
||||
|
||||
macro_rules! declare_features {
|
||||
($((removed, $feature: ident, $ver: expr, $issue: expr, None, $reason: expr),)+) => {
|
||||
($(
|
||||
$(#[doc = $doc:tt])* (removed, $feature:ident, $ver:expr, $issue:expr, None, $reason:expr),
|
||||
)+) => {
|
||||
/// Represents unstable features which have since been removed (it was once Active)
|
||||
pub const REMOVED_FEATURES: &[(Symbol, &str, Option<u32>, Option<&str>)] = &[
|
||||
$((sym::$feature, $ver, $issue, $reason)),+
|
||||
];
|
||||
};
|
||||
|
||||
($((stable_removed, $feature: ident, $ver: expr, $issue: expr, None),)+) => {
|
||||
($(
|
||||
$(#[doc = $doc:tt])* (stable_removed, $feature:ident, $ver:expr, $issue:expr, None),
|
||||
)+) => {
|
||||
/// Represents stable features which have since been removed (it was once Accepted)
|
||||
pub const STABLE_REMOVED_FEATURES: &[(Symbol, &str, Option<u32>, Option<&str>)] = &[
|
||||
$((sym::$feature, $ver, $issue, None)),+
|
||||
@ -25,17 +29,17 @@ declare_features! (
|
||||
|
||||
(removed, import_shadowing, "1.0.0", None, None, None),
|
||||
(removed, managed_boxes, "1.0.0", None, None, None),
|
||||
// Allows use of unary negate on unsigned integers, e.g., -e for e: u8
|
||||
/// Allows use of unary negate on unsigned integers, e.g., -e for e: u8
|
||||
(removed, negate_unsigned, "1.0.0", Some(29645), None, None),
|
||||
(removed, reflect, "1.0.0", Some(27749), None, None),
|
||||
// A way to temporarily opt out of opt in copy. This will *never* be accepted.
|
||||
/// A way to temporarily opt out of opt in copy. This will *never* be accepted.
|
||||
(removed, opt_out_copy, "1.0.0", None, None, None),
|
||||
(removed, quad_precision_float, "1.0.0", None, None, None),
|
||||
(removed, struct_inherit, "1.0.0", None, None, None),
|
||||
(removed, test_removed_feature, "1.0.0", None, None, None),
|
||||
(removed, visible_private_types, "1.0.0", None, None, None),
|
||||
(removed, unsafe_no_drop_flag, "1.0.0", None, None, None),
|
||||
// Allows using items which are missing stability attributes
|
||||
/// Allows using items which are missing stability attributes
|
||||
(removed, unmarked_api, "1.0.0", None, None, None),
|
||||
(removed, allocator, "1.0.0", None, None, None),
|
||||
(removed, simd, "1.0.0", Some(27731), None,
|
||||
@ -57,18 +61,18 @@ declare_features! (
|
||||
Some("subsumed by `#![feature(proc_macro_hygiene)]`")),
|
||||
(removed, panic_implementation, "1.28.0", Some(44489), None,
|
||||
Some("subsumed by `#[panic_handler]`")),
|
||||
// Allows the use of `#[derive(Anything)]` as sugar for `#[derive_Anything]`.
|
||||
/// Allows the use of `#[derive(Anything)]` as sugar for `#[derive_Anything]`.
|
||||
(removed, custom_derive, "1.32.0", Some(29644), None,
|
||||
Some("subsumed by `#[proc_macro_derive]`")),
|
||||
// Paths of the form: `extern::foo::bar`
|
||||
/// Paths of the form: `extern::foo::bar`
|
||||
(removed, extern_in_paths, "1.33.0", Some(55600), None,
|
||||
Some("subsumed by `::foo::bar` paths")),
|
||||
(removed, quote, "1.33.0", Some(29601), None, None),
|
||||
// Allows using `#[unsafe_destructor_blind_to_params]` (RFC 1238).
|
||||
/// Allows using `#[unsafe_destructor_blind_to_params]` (RFC 1238).
|
||||
(removed, dropck_parametricity, "1.38.0", Some(28498), None, None),
|
||||
(removed, await_macro, "1.38.0", Some(50547), None,
|
||||
Some("subsumed by `.await` syntax")),
|
||||
// Allows defining `existential type`s.
|
||||
/// Allows defining `existential type`s.
|
||||
(removed, existential_type, "1.38.0", Some(63063), None,
|
||||
Some("removed in favor of `#![feature(type_alias_impl_trait)]`")),
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user