/// below (it has to be checked before expansion possibly makes
/// macros disappear).
(active, allow_internal_unstable, "1.0.0", None, None),
+ /// Allows using anonymous lifetimes in argument-position impl-trait.
+ (active, anonymous_lifetime_in_impl_trait, "1.63.0", None, None),
/// Allows identifying the `compiler_builtins` crate.
(active, compiler_builtins, "1.13.0", None, None),
+ /// Allows writing custom MIR
+ (active, custom_mir, "1.65.0", None, None),
+ /// Outputs useful `assert!` messages
+ (active, generic_assert, "1.63.0", None, None),
/// 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.
(active, lang_items, "1.0.0", None, None),
- /// Allows `#[repr(no_niche)]` (an implementation detail of `rustc`,
- /// it is not on path for eventual stabilization).
- (active, no_niche, "1.42.0", None, None),
+ /// Allows `#[link(..., cfg(..))]`; perma-unstable per #37406
+ (active, link_cfg, "1.14.0", None, None),
+ /// Allows the `multiple_supertrait_upcastable` lint.
+ (active, multiple_supertrait_upcastable, "1.69.0", None, None),
/// Allows using `#[omit_gdb_pretty_printer_section]`.
(active, omit_gdb_pretty_printer_section, "1.5.0", None, None),
/// Allows using `#[prelude_import]` on glob `use` items.
(active, auto_traits, "1.50.0", Some(13231), None),
/// Allows using `box` in patterns (RFC 469).
(active, box_patterns, "1.0.0", Some(29641), None),
- /// Allows using the `box $expr` syntax.
- (active, box_syntax, "1.0.0", Some(49733), None),
/// Allows `#[doc(notable_trait)]`.
/// Renamed from `doc_spotlight`.
(active, doc_notable_trait, "1.52.0", Some(45040), None),
(active, linkage, "1.0.0", Some(29603), None),
/// Allows declaring with `#![needs_panic_runtime]` that a panic runtime is needed.
(active, needs_panic_runtime, "1.10.0", Some(32837), None),
+ /// Allows using `+bundled,+whole-archive` native libs.
+ (active, packed_bundled_libs, "1.69.0", Some(108081), None),
/// Allows using the `#![panic_runtime]` attribute.
(active, panic_runtime, "1.10.0", Some(32837), None),
/// Allows using `#[rustc_allow_const_fn_unstable]`.
(active, rustc_allow_const_fn_unstable, "1.49.0", Some(69399), None),
/// Allows using compiler's own crates.
(active, rustc_private, "1.0.0", Some(27812), None),
- /// Allows using internal rustdoc features like `doc(primitive)` or `doc(keyword)`.
+ /// Allows using internal rustdoc features like `doc(keyword)`.
(active, rustdoc_internals, "1.58.0", Some(90418), None),
+ /// Allows using the `rustdoc::missing_doc_code_examples` lint
+ (active, rustdoc_missing_doc_code_examples, "1.31.0", Some(101730), None),
/// Allows using `#[start]` on a function indicating that it is the program entrypoint.
(active, start, "1.0.0", Some(29633), None),
/// Allows using `#[structural_match]` which indicates that a type is structurally matchable.
// Unstable `#[target_feature]` directives.
(active, aarch64_ver_target_feature, "1.27.0", Some(44839), None),
- (active, adx_target_feature, "1.32.0", Some(44839), None),
(active, arm_target_feature, "1.27.0", Some(44839), None),
(active, avx512_target_feature, "1.27.0", Some(44839), None),
(active, bpf_target_feature, "1.54.0", Some(44839), None),
- (active, cmpxchg16b_target_feature, "1.32.0", Some(44839), None),
(active, ermsb_target_feature, "1.49.0", Some(44839), None),
- (active, f16c_target_feature, "1.36.0", Some(44839), None),
(active, hexagon_target_feature, "1.27.0", Some(44839), None),
(active, mips_target_feature, "1.27.0", Some(44839), None),
- (active, movbe_target_feature, "1.34.0", Some(44839), None),
(active, powerpc_target_feature, "1.27.0", Some(44839), None),
(active, riscv_target_feature, "1.45.0", Some(44839), None),
(active, rtm_target_feature, "1.35.0", Some(44839), None),
(active, abi_avr_interrupt, "1.45.0", Some(69664), None),
/// Allows `extern "C-cmse-nonsecure-call" fn()`.
(active, abi_c_cmse_nonsecure_call, "1.51.0", Some(81391), None),
- /// Allows using the `efiapi` ABI.
- (active, abi_efiapi, "1.40.0", Some(65815), None),
/// Allows `extern "msp430-interrupt" fn()`.
(active, abi_msp430_interrupt, "1.16.0", Some(38487), None),
/// Allows `extern "ptx-*" fn()`.
(incomplete, adt_const_params, "1.56.0", Some(95174), None),
/// Allows defining an `#[alloc_error_handler]`.
(active, alloc_error_handler, "1.29.0", Some(51540), None),
- /// Allows explicit discriminants on non-unit enum variants.
- (active, arbitrary_enum_discriminant, "1.37.0", Some(60553), None),
/// Allows trait methods with arbitrary self types.
(active, arbitrary_self_types, "1.23.0", Some(44874), None),
/// Allows using `const` operands in inline assembly.
(active, asm_const, "1.58.0", Some(93332), None),
/// Enables experimental inline assembly support for additional architectures.
(active, asm_experimental_arch, "1.58.0", Some(93335), None),
- /// Allows using `sym` operands in inline assembly.
- (active, asm_sym, "1.58.0", Some(93333), None),
/// Allows the `may_unwind` option in inline assembly.
(active, asm_unwind, "1.58.0", Some(93334), None),
/// Allows users to enforce equality of associated constants `TraitImpl<AssocConst=3>`.
(active, associated_type_defaults, "1.2.0", Some(29661), None),
/// Allows `async || body` closures.
(active, async_closure, "1.37.0", Some(62290), None),
+ /// Allows async functions to be declared, implemented, and used in traits.
+ (incomplete, async_fn_in_trait, "1.66.0", Some(91611), None),
/// Allows `extern "C-unwind" fn` to enable unwinding across ABI boundaries.
(active, c_unwind, "1.52.0", Some(74990), None),
/// Allows using C-variadics.
(active, c_variadic, "1.34.0", Some(44930), None),
- /// Allows capturing disjoint fields in a closure/generator (RFC 2229).
- (incomplete, capture_disjoint_fields, "1.49.0", Some(53488), None),
/// Allows the use of `#[cfg(sanitize = "option")]`; set when -Zsanitizer is used.
(active, cfg_sanitize, "1.41.0", Some(39699), None),
/// Allows `cfg(target_abi = "...")`.
(active, cfg_target_abi, "1.55.0", Some(80970), None),
+ /// Allows `cfg(target(abi = "..."))`.
+ (active, cfg_target_compact, "1.63.0", Some(96901), None),
/// Allows `cfg(target_has_atomic_load_store = "...")`.
(active, cfg_target_has_atomic, "1.60.0", Some(94039), None),
/// Allows `cfg(target_has_atomic_equal_alignment = "...")`.
(active, cfg_target_thread_local, "1.7.0", Some(29594), None),
/// Allow conditional compilation depending on rust version
(active, cfg_version, "1.45.0", Some(64796), None),
+ /// Allows `for<...>` on closures and generators.
+ (active, closure_lifetime_binder, "1.64.0", Some(97362), None),
/// Allows `#[track_caller]` on closures and generators.
(active, closure_track_caller, "1.57.0", Some(87417), None),
/// Allows to use the `#[cmse_nonsecure_entry]` attribute.
(active, cmse_nonsecure_entry, "1.48.0", Some(75835), None),
+ /// Allows use of the `#[collapse_debuginfo]` attribute.
+ (active, collapse_debuginfo, "1.65.0", Some(100758), None),
/// Allows `async {}` expressions in const contexts.
(active, const_async_blocks, "1.53.0", Some(85368), None),
- // Allows limiting the evaluation steps of const expressions
+ /// Allows `const || {}` closures in const contexts.
+ (incomplete, const_closures, "1.68.0", Some(106003), None),
+ /// Allows limiting the evaluation steps of const expressions
(active, const_eval_limit, "1.43.0", Some(67217), None),
/// Allows the definition of `const extern fn` and `const unsafe extern fn`.
(active, const_extern_fn, "1.40.0", Some(64926), None),
(active, const_trait_impl, "1.42.0", Some(67792), None),
/// Allows the `?` operator in const contexts.
(active, const_try, "1.56.0", Some(74935), None),
- /// Allows using `crate` as visibility modifier, synonymous with `pub(crate)`.
- (active, crate_visibility_modifier, "1.23.0", Some(53120), None),
/// Allows non-builtin attributes in inner attribute position.
(active, custom_inner_attributes, "1.30.0", Some(54726), None),
/// Allows custom test frameworks with `#![test_runner]` and `#[test_case]`.
(active, custom_test_frameworks, "1.30.0", Some(50297), None),
+ /// Allows using `#[debugger_visualizer]`.
+ (active, debugger_visualizer, "1.62.0", Some(95939), None),
/// Allows declarative macros 2.0 (`macro`).
(active, decl_macro, "1.17.0", Some(39412), None),
- /// Allows rustc to inject a default alloc_error_handler
- (active, default_alloc_error_handler, "1.48.0", Some(66741), None),
/// Allows default type parameters to influence type inference.
(active, default_type_parameter_fallback, "1.3.0", Some(27336), None),
/// Allows using `#[deprecated_safe]` to deprecate the safeness of a function or trait
(active, deprecated_safe, "1.61.0", Some(94978), None),
/// Allows having using `suggestion` in the `#[deprecated]` attribute.
(active, deprecated_suggestion, "1.61.0", Some(94785), None),
- /// Allows `#[derive(Default)]` and `#[default]` on enums.
- (active, derive_default_enum, "1.56.0", Some(86985), None),
+ /// Controls errors in trait implementations.
+ (active, do_not_recommend, "1.67.0", Some(51992), None),
/// Tells rustdoc to automatically generate `#[doc(cfg(...))]`.
(active, doc_auto_cfg, "1.58.0", Some(43781), None),
/// Allows `#[doc(cfg(...))]`.
(active, doc_cfg_hide, "1.57.0", Some(43781), None),
/// Allows `#[doc(masked)]`.
(active, doc_masked, "1.21.0", Some(44027), None),
+ /// Allows `dyn* Trait` objects.
+ (incomplete, dyn_star, "1.65.0", Some(102425), None),
/// Allows `X..Y` patterns.
(active, exclusive_range_pattern, "1.11.0", Some(37854), None),
/// Allows exhaustive pattern matching on types that contain uninhabited types.
(active, exhaustive_patterns, "1.13.0", Some(51085), None),
- /// Allows explicit generic arguments specification with `impl Trait` present.
- (active, explicit_generic_args_with_impl_trait, "1.56.0", Some(83701), None),
+ /// Allows using `efiapi`, `sysv64` and `win64` as calling convention
+ /// for functions with varargs.
+ (active, extended_varargs_abi_support, "1.65.0", Some(100189), None),
/// Allows defining `extern type`s.
(active, extern_types, "1.23.0", Some(43467), None),
/// Allows the use of `#[ffi_const]` on foreign functions.
(active, ffi_returns_twice, "1.34.0", Some(58314), None),
/// Allows using `#[repr(align(...))]` on function items
(active, fn_align, "1.53.0", Some(82232), None),
+ /// Allows generators to be cloned.
+ (active, generator_clone, "1.65.0", Some(95360), None),
/// Allows defining generators.
(active, generators, "1.21.0", Some(43122), None),
/// Infer generic args for both consts and types.
(active, generic_arg_infer, "1.55.0", Some(85077), None),
- /// Allows associated types to be generic, e.g., `type Foo<T>;` (RFC 1598).
- (active, generic_associated_types, "1.23.0", Some(44265), None),
/// An extension to the `generic_associated_types` feature, allowing incomplete features.
(incomplete, generic_associated_types_extended, "1.61.0", Some(95451), None),
/// Allows non-trivial generic constants which have to have wfness manually propagated to callers
(incomplete, generic_const_exprs, "1.56.0", Some(76560), None),
- /// Allows using `..X`, `..=X`, `...X`, and `X..` as a pattern.
- (active, half_open_range_patterns, "1.41.0", Some(67264), None),
+ /// Allows using `..=X` as a patterns in slices.
+ (active, half_open_range_patterns_in_slices, "1.66.0", Some(67264), None),
/// Allows `if let` guard in match arms.
(active, if_let_guard, "1.47.0", Some(51114), None),
+ /// Allows `impl Trait` to be used inside associated types (RFC 2515).
+ (active, impl_trait_in_assoc_type, "1.70.0", Some(63063), None),
+ /// Allows `impl Trait` as output type in `Fn` traits in return position of functions.
+ (active, impl_trait_in_fn_trait_return, "1.64.0", Some(99697), None),
+ /// Allows referencing `Self` and projections in impl-trait.
+ (active, impl_trait_projections, "1.67.0", Some(103532), None),
/// Allows using imported `main` function
(active, imported_main, "1.53.0", Some(28937), None),
- /// Allows inferring `'static` outlives requirements (RFC 2093).
- (active, infer_static_outlives_requirements, "1.26.0", Some(54185), None),
/// Allows associated types in inherent impls.
(incomplete, inherent_associated_types, "1.52.0", Some(8995), None),
/// Allow anonymous constants from an inline `const` block
(incomplete, inline_const_pat, "1.58.0", Some(76001), None),
/// Allows using `pointer` and `reference` in intra-doc links
(active, intra_doc_pointers, "1.51.0", Some(80896), None),
- /// Allows `#[instruction_set(_)]` attribute
- (active, isa_attribute, "1.48.0", Some(74727), None),
- /// Allows `'a: { break 'a; }`.
- (active, label_break_value, "1.28.0", Some(48594), None),
// Allows setting the threshold for the `large_assignments` lint.
(active, large_assignments, "1.52.0", Some(83518), None),
/// Allows `if/while p && let q = r && ...` chains.
(active, let_chains, "1.37.0", Some(53667), None),
- /// Allows `let...else` statements.
- (active, let_else, "1.56.0", Some(87335), None),
- /// Allows `#[link(..., cfg(..))]`.
- (active, link_cfg, "1.14.0", Some(37406), None),
/// Allows using `reason` in lint attributes and the `#[expect(lint)]` lint check.
(active, lint_reasons, "1.31.0", Some(54503), None),
/// Give access to additional metadata about declarative macro meta-variables.
(active, naked_functions, "1.9.0", Some(32408), None),
/// Allows specifying the as-needed link modifier
(active, native_link_modifiers_as_needed, "1.53.0", Some(81490), None),
- /// Allows specifying the bundle link modifier
- (active, native_link_modifiers_bundle, "1.53.0", Some(81490), None),
- /// Allows specifying the verbatim link modifier
- (active, native_link_modifiers_verbatim, "1.53.0", Some(81490), None),
/// Allow negative trait implementations.
(active, negative_impls, "1.44.0", Some(68318), None),
/// Allows the `!` type. Does not imply 'exhaustive_patterns' (below) any more.
(active, never_type, "1.13.0", Some(35121), None),
/// Allows diverging expressions to fall back to `!` rather than `()`.
(active, never_type_fallback, "1.41.0", Some(65992), None),
- /// Allows using non lexical lifetimes (RFC 2094).
- (active, nll, "1.0.0", Some(43234), None),
/// Allows `#![no_core]`.
(active, no_core, "1.3.0", Some(29639), None),
/// Allows function attribute `#[no_coverage]`, to bypass coverage
(active, no_sanitize, "1.42.0", Some(39699), None),
/// Allows using the `non_exhaustive_omitted_patterns` lint.
(active, non_exhaustive_omitted_patterns_lint, "1.57.0", Some(89554), None),
+ /// Allows `for<T>` binders in where-clauses
+ (incomplete, non_lifetime_binders, "1.69.0", Some(108185), None),
/// Allows making `dyn Trait` well-formed even if `Trait` is not object safe.
/// In that case, `dyn Trait: Trait` does not hold. Moreover, coercions and
/// casts in safe Rust to `dyn Trait` for such a `Trait` is also forbidden.
/// Allows macro attributes on expressions, statements and non-inline modules.
(active, proc_macro_hygiene, "1.30.0", Some(54727), None),
/// Allows the use of raw-dylibs (RFC 2627).
- (incomplete, raw_dylib, "1.40.0", Some(58713), None),
+ (active, raw_dylib, "1.65.0", Some(58713), None),
/// Allows `&raw const $place_expr` and `&raw mut $place_expr` expressions.
(active, raw_ref_op, "1.41.0", Some(64490), None),
- /// Allows using the `#[register_attr]` attribute.
- (active, register_attr, "1.41.0", Some(66080), None),
/// Allows using the `#[register_tool]` attribute.
(active, register_tool, "1.41.0", Some(66079), None),
/// Allows the `#[repr(i128)]` attribute for enums.
(incomplete, repr128, "1.16.0", Some(56071), None),
/// Allows `repr(simd)` and importing the various simd intrinsics.
(active, repr_simd, "1.4.0", Some(27731), None),
+ /// Allows return-position `impl Trait` in traits.
+ (incomplete, return_position_impl_trait_in_trait, "1.65.0", Some(91611), None),
+ /// Allows bounding the return type of AFIT/RPITIT.
+ (incomplete, return_type_notation, "1.70.0", Some(109417), None),
+ /// Allows `extern "rust-cold"`.
+ (active, rust_cold_cc, "1.63.0", Some(97544), None),
/// Allows the use of SIMD types in functions declared in `extern` blocks.
(active, simd_ffi, "1.0.0", Some(27731), None),
/// Allows specialization of implementations (RFC 1210).
(incomplete, specialization, "1.7.0", Some(31844), None),
- /// Allows `#[link(kind="static-nobundle"...)]`.
- (active, static_nobundle, "1.16.0", Some(37403), None),
/// Allows attributes on expressions and non-item statements.
(active, stmt_expr_attributes, "1.6.0", Some(15701), None),
+ /// Allows lints part of the strict provenance effort.
+ (active, strict_provenance, "1.61.0", Some(95228), None),
+ /// Allows string patterns to dereference values to match them.
+ (active, string_deref_patterns, "1.67.0", Some(87121), None),
/// Allows the use of `#[target_feature]` on safe functions.
(active, target_feature_11, "1.45.0", Some(69098), None),
/// Allows using `#[thread_local]` on `static` items.
(active, thread_local, "1.0.0", Some(29594), None),
/// Allows defining `trait X = A + B;` alias items.
(active, trait_alias, "1.24.0", Some(41517), None),
- /// Allows upcasting trait objects via supertraits.
- /// Trait upcasting is casting, e.g., `dyn Foo -> dyn Bar` where `Foo: Bar`.
- (incomplete, trait_upcasting, "1.56.0", Some(65991), None),
+ /// Allows dyn upcasting trait objects via supertraits.
+ /// Dyn upcasting is casting, e.g., `dyn Foo -> dyn Bar` where `Foo: Bar`.
+ (active, trait_upcasting, "1.56.0", Some(65991), None),
+ /// Allows for transmuting between arrays with sizes that contain generic consts.
+ (active, transmute_generic_consts, "1.70.0", Some(109929), None),
/// Allows #[repr(transparent)] on unions (RFC 2645).
(active, transparent_unions, "1.37.0", Some(60405), None),
/// Allows inconsistent bounds in where clauses.
(active, type_ascription, "1.6.0", Some(23416), None),
/// Allows creation of instances of a struct by moving fields that have
/// not changed from prior instances of the same struct (RFC #2528)
- (incomplete, type_changing_struct_update, "1.58.0", Some(86555), None),
+ (active, type_changing_struct_update, "1.58.0", Some(86555), None),
+ /// Enables rustc to generate code that instructs libstd to NOT ignore SIGPIPE.
+ (active, unix_sigpipe, "1.65.0", Some(97889), None),
/// Allows unsized fn parameters.
(active, unsized_fn_params, "1.49.0", Some(48055), None),
/// Allows unsized rvalues at arguments and parameters.
(incomplete, unsized_locals, "1.30.0", Some(48055), None),
/// Allows unsized tuple coercion.
(active, unsized_tuple_coercion, "1.20.0", Some(42877), None),
- /// Allows `union`s to implement `Drop`. Moreover, `union`s may now include fields
- /// that don't implement `Copy` as long as they don't have any drop glue.
- /// This is checked recursively. On encountering type variable where no progress can be made,
- /// `T: Copy` is used as a substitute for "no drop glue".
- ///
- /// NOTE: A limited form of `union U { ... }` was accepted in 1.19.0.
- (active, untagged_unions, "1.13.0", Some(55149), None),
/// Allows using the `#[used(linker)]` (or `#[used(compiler)]`) attribute.
(active, used_with_arg, "1.60.0", Some(93798), None),
/// Allows `extern "wasm" fn`
(active, wasm_abi, "1.53.0", Some(83788), None),
+ /// Allows `do yeet` expressions
+ (active, yeet_expr, "1.62.0", Some(96373), None),
// !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!!
// Features are listed in alphabetical order. Tidy will fail if you don't keep it this way.
// !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!! !!!!
projects / rustc.git / blobdiff