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|
//! List of the removed feature gates.
use crate::symbol::sym;
use super::{State, Feature};
macro_rules! declare_features {
($(
$(#[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: &[Feature] = &[
$(
Feature {
state: State::Removed { reason: $reason },
name: sym::$feature,
since: $ver,
issue: $issue,
edition: None,
description: concat!($($doc,)*),
}
),+
];
};
($(
$(#[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: &[Feature] = &[
$(
Feature {
state: State::Stabilized { reason: None },
name: sym::$feature,
since: $ver,
issue: $issue,
edition: None,
description: concat!($($doc,)*),
}
),+
];
};
}
declare_features! (
// -------------------------------------------------------------------------
// feature-group-start: removed 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
(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.
(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
(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,
Some("removed in favor of `#[repr(simd)]`")),
(removed, advanced_slice_patterns, "1.0.0", Some(62254), None,
Some("merged into `#![feature(slice_patterns)]`")),
(removed, macro_reexport, "1.0.0", Some(29638), None,
Some("subsumed by `pub use`")),
(removed, pushpop_unsafe, "1.2.0", None, None, None),
(removed, needs_allocator, "1.4.0", Some(27389), None,
Some("subsumed by `#![feature(allocator_internals)]`")),
(removed, proc_macro_mod, "1.27.0", Some(54727), None,
Some("subsumed by `#![feature(proc_macro_hygiene)]`")),
(removed, proc_macro_expr, "1.27.0", Some(54727), None,
Some("subsumed by `#![feature(proc_macro_hygiene)]`")),
(removed, proc_macro_non_items, "1.27.0", Some(54727), None,
Some("subsumed by `#![feature(proc_macro_hygiene)]`")),
(removed, proc_macro_gen, "1.27.0", Some(54727), None,
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]`.
(removed, custom_derive, "1.32.0", Some(29644), None,
Some("subsumed by `#[proc_macro_derive]`")),
/// 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).
(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.
(removed, existential_type, "1.38.0", Some(63063), None,
Some("removed in favor of `#![feature(type_alias_impl_trait)]`")),
/// Allows using the macros:
/// + `__diagnostic_used`
/// + `__register_diagnostic`
/// +`__build_diagnostic_array`
(removed, rustc_diagnostic_macros, "1.38.0", None, None, None),
// -------------------------------------------------------------------------
// feature-group-end: removed features
// -------------------------------------------------------------------------
);
declare_features! (
(stable_removed, no_stack_check, "1.0.0", None, None),
);
|
