builtin_attrs.rs: organize!
This commit is contained in:
Mazdak Farrokhzad
parent
584388c4aa
commit
d286fe0b8d
@ -158,82 +158,256 @@ macro_rules! rustc_attr {
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};
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}
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macro_rules! experimental {
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($attr:ident) => {
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concat!("the `#[", stringify!($attr), "]` attribute is an experimental feature")
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}
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}
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const IMPL_DETAIL: &str = "internal implementation detail";
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const INTERAL_UNSTABLE: &str = "this is an internal attribute that will never be stable";
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pub type BuiltinAttribute = (Symbol, AttributeType, AttributeTemplate, AttributeGate);
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/// Attributes that have a special meaning to rustc or rustdoc
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pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
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// Normal attributes
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ungated!(warn, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(allow, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(forbid, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(deny, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(macro_use, Normal, template!(Word, List: "name1, name2, ...")),
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ungated!(macro_export, Normal, template!(Word, List: "local_inner_macros")),
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ungated!(plugin_registrar, Normal, template!(Word)),
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// ==========================================================================
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// Stable attributes:
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// ==========================================================================
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// Condtional compilation:
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ungated!(cfg, Normal, template!(List: "predicate")),
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ungated!(cfg_attr, Normal, template!(List: "predicate, attr1, attr2, ...")),
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ungated!(main, Normal, template!(Word)),
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ungated!(start, Normal, template!(Word)),
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ungated!(repr, Normal, template!(List: "C, packed, ...")),
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ungated!(path, Normal, template!(NameValueStr: "file")),
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ungated!(automatically_derived, Normal, template!(Word)),
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ungated!(no_mangle, Whitelisted, template!(Word)),
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ungated!(no_link, Normal, template!(Word)),
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ungated!(derive, Normal, template!(List: "Trait1, Trait2, ...")),
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// Testing:
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ungated!(ignore, Normal, template!(Word, NameValueStr: "reason")),
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ungated!(
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should_panic, Normal,
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template!(Word, List: r#"expected = "reason"#, NameValueStr: "reason"),
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),
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ungated!(ignore, Normal, template!(Word, NameValueStr: "reason")),
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ungated!(no_implicit_prelude, Normal, template!(Word)),
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// FIXME(Centril): This can be used on stable but shouldn't.
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ungated!(reexport_test_harness_main, Normal, template!(NameValueStr: "name")),
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// Macros:
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ungated!(derive, Normal, template!(List: "Trait1, Trait2, ...")),
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ungated!(automatically_derived, Normal, template!(Word)),
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ungated!(macro_use, Normal, template!(Word, List: "name1, name2, ...")),
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ungated!(macro_escape, Normal, template!(Word)), // Deprecated synonym for `macro_use`.
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ungated!(macro_export, Normal, template!(Word, List: "local_inner_macros")),
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ungated!(proc_macro, Normal, template!(Word)),
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ungated!(
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proc_macro_derive, Normal,
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template!(List: "TraitName, /*opt*/ attributes(name1, name2, ...)"),
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),
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ungated!(proc_macro_attribute, Normal, template!(Word)),
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// Lints:
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ungated!(warn, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(allow, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(forbid, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(deny, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)),
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ungated!(must_use, Whitelisted, template!(Word, NameValueStr: "reason")),
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ungated!(
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deprecated, Normal,
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template!(
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Word,
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List: r#"/*opt*/ since = "version", /*opt*/ note = "reason""#,
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NameValueStr: "reason"
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),
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),
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// Crate properties:
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ungated!(crate_name, CrateLevel, template!(NameValueStr: "name")),
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ungated!(crate_type, CrateLevel, template!(NameValueStr: "bin|lib|...")),
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ungated!(crate_id, CrateLevel, template!(NameValueStr: "ignored")),
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// ABI, linking, symbols, and FFI
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ungated!(
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link, Whitelisted,
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template!(List: r#"name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...""#),
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),
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ungated!(link_name, Whitelisted, template!(NameValueStr: "name")),
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ungated!(no_link, Normal, template!(Word)),
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ungated!(repr, Normal, template!(List: "C, packed, ...")),
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ungated!(export_name, Whitelisted, template!(NameValueStr: "name")),
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ungated!(link_section, Whitelisted, template!(NameValueStr: "name")),
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ungated!(no_mangle, Whitelisted, template!(Word)),
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ungated!(used, Whitelisted, template!(Word)),
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// Limits:
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ungated!(recursion_limit, CrateLevel, template!(NameValueStr: "N")),
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ungated!(type_length_limit, CrateLevel, template!(NameValueStr: "N")),
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// Entry point:
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ungated!(main, Normal, template!(Word)),
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ungated!(start, Normal, template!(Word)),
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ungated!(no_start, CrateLevel, template!(Word)),
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ungated!(no_main, CrateLevel, template!(Word)),
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// Modules, prelude, and resolution:
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ungated!(path, Normal, template!(NameValueStr: "file")),
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ungated!(no_std, CrateLevel, template!(Word)),
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ungated!(no_implicit_prelude, Normal, template!(Word)),
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// Runtime
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ungated!(windows_subsystem, Whitelisted, template!(NameValueStr: "windows|console")),
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ungated!(panic_handler, Normal, template!(Word)), // RFC 2070
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// Code generation:
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ungated!(inline, Whitelisted, template!(Word, List: "always|never")),
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ungated!(cold, Whitelisted, template!(Word)),
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ungated!(no_builtins, Whitelisted, template!(Word)),
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ungated!(target_feature, Whitelisted, template!(List: r#"enable = "name""#)),
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// FIXME: #14408 whitelist docs since rustdoc looks at them
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ungated!(doc, Whitelisted, template!(List: "hidden|inline|...", NameValueStr: "string")),
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// ==========================================================================
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// Unstable attributes:
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// ==========================================================================
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// Linking:
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gated!(naked, Whitelisted, template!(Word), naked_functions, experimental!(naked)),
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gated!(
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link_args, Normal, template!(NameValueStr: "args"),
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"the `link_args` attribute is experimental and not portable across platforms, \
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it is recommended to use `#[link(name = \"foo\")] instead",
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),
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ungated!(macro_escape, Normal, template!(Word)),
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// RFC #1445.
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gated!(
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structural_match, Whitelisted, template!(Word),
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"the semantics of constant patterns is not yet settled",
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),
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// RFC #2008
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gated!(
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non_exhaustive, Whitelisted, template!(Word),
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"non exhaustive is an experimental feature",
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),
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// RFC #1268
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gated!(
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marker, Normal, template!(Word), marker_trait_attr,
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"marker traits is an experimental feature",
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),
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// Plugins:
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ungated!(plugin_registrar, Normal, template!(Word)),
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gated!(
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plugin, CrateLevel, template!(List: "name|name(args)"),
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"compiler plugins are experimental and possibly buggy",
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),
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ungated!(no_std, CrateLevel, template!(Word)),
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gated!(no_core, CrateLevel, template!(Word), "no_core is experimental"),
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// Testing:
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gated!(allow_fail, Normal, template!(Word), experimental!(allow_fail)),
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gated!(
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lang, Normal, template!(NameValueStr: "name"), lang_items,
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"language items are subject to change",
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),
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gated!(
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linkage, Whitelisted, template!(NameValueStr: "external|internal|..."),
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"the `linkage` attribute is experimental and not portable across platforms",
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test_runner, CrateLevel, template!(List: "path"), custom_test_frameworks,
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"custom test frameworks are an unstable feature",
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),
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// RFC #2008
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gated!(non_exhaustive, Whitelisted, template!(Word), experimental!(non_exhaustive)),
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// RFC #1268
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gated!(marker, Normal, template!(Word), marker_trait_attr, experimental!(marker)),
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gated!(
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thread_local, Whitelisted, template!(Word),
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"`#[thread_local]` is an experimental feature, and does not currently handle destructors",
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),
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gated!(no_core, CrateLevel, template!(Word), experimental!(no_core)),
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// RFC 2412
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gated!(
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optimize, Whitelisted, template!(List: "size|speed"), optimize_attribute,
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experimental!(optimize),
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),
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gated!(ffi_returns_twice, Whitelisted, template!(Word), experimental!(ffi_returns_twice)),
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// ==========================================================================
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// Internal attributes: Stability, deprecation, and unsafe:
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// ==========================================================================
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ungated!(feature, CrateLevel, template!(List: "name1, name1, ...")),
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// FIXME: #14407 these are only looked at on-demand so we can't
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// guarantee they'll have already been checked
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ungated!(
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rustc_deprecated, Whitelisted,
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template!(List: r#"since = "version", reason = "...""#)
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),
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ungated!(stable, Whitelisted, template!(List: r#"feature = "name", since = "version""#)),
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ungated!(
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unstable, Whitelisted,
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template!(List: r#"feature = "name", reason = "...", issue = "N""#),
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),
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gated!(
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rustc_const_unstable, Normal, template!(List: r#"feature = "name""#),
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"the `#[rustc_const_unstable]` attribute is an internal feature",
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),
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gated!(
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allow_internal_unstable, Normal, template!(Word, List: "feat1, feat2, ..."),
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EXPLAIN_ALLOW_INTERNAL_UNSTABLE,
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),
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gated!(allow_internal_unsafe, Normal, template!(Word), EXPLAIN_ALLOW_INTERNAL_UNSAFE),
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// ==========================================================================
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// Internal attributes: Type system related:
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// ==========================================================================
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gated!(fundamental, Whitelisted, template!(Word), experimental!(fundamental)),
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gated!(
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// RFC #1445.
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structural_match, Whitelisted, template!(Word),
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"the semantics of constant patterns is not yet settled",
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),
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gated!(
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may_dangle, Normal, template!(Word), dropck_eyepatch,
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"`may_dangle` has unstable semantics and may be removed in the future",
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),
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// ==========================================================================
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// Internal attributes: Runtime related:
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// ==========================================================================
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rustc_attr!(rustc_allocator, Whitelisted, template!(Word), IMPL_DETAIL),
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rustc_attr!(rustc_allocator_nounwind, Whitelisted, template!(Word), IMPL_DETAIL),
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gated!(alloc_error_handler, Normal, template!(Word), experimental!(alloc_error_handler)),
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gated!(
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default_lib_allocator, Whitelisted, template!(Word), allocator_internals,
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experimental!(default_lib_allocator),
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),
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gated!(
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needs_allocator, Normal, template!(Word), allocator_internals,
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experimental!(needs_allocator),
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),
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gated!(panic_runtime, Whitelisted, template!(Word), experimental!(panic_runtime)),
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gated!(needs_panic_runtime, Whitelisted, template!(Word), experimental!(needs_panic_runtime)),
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gated!(
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unwind, Whitelisted, template!(List: "allowed|aborts"), unwind_attributes,
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experimental!(unwind),
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),
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gated!(
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compiler_builtins, Whitelisted, template!(Word),
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"the `#[compiler_builtins]` attribute is used to identify the `compiler_builtins` crate \
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which contains compiler-rt intrinsics and will never be stable",
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),
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gated!(
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sanitizer_runtime, Whitelisted, template!(Word),
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"the `#[sanitizer_runtime]` attribute is used to identify crates that contain the runtime \
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of a sanitizer and will never be stable",
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),
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gated!(
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profiler_runtime, Whitelisted, template!(Word),
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"the `#[profiler_runtime]` attribute is used to identify the `profiler_builtins` crate \
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which contains the profiler runtime and will never be stable",
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),
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// ==========================================================================
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// Internal attributes, Linkage:
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// ==========================================================================
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gated!(
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linkage, Whitelisted, template!(NameValueStr: "external|internal|..."),
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"the `linkage` attribute is experimental and not portable across platforms",
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),
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rustc_attr!(rustc_std_internal_symbol, Whitelisted, template!(Word), INTERAL_UNSTABLE),
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// ==========================================================================
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// Internal attributes, Macro related:
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// ==========================================================================
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rustc_attr!(rustc_builtin_macro, Whitelisted, template!(Word), IMPL_DETAIL),
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rustc_attr!(rustc_proc_macro_decls, Normal, template!(Word), INTERAL_UNSTABLE),
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rustc_attr!(
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rustc_macro_transparency, Whitelisted,
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template!(NameValueStr: "transparent|semitransparent|opaque"),
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"used internally for testing macro hygiene",
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),
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// ==========================================================================
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// Internal attributes, Diagnostics related:
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// ==========================================================================
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gated!(
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rustc_on_unimplemented, Whitelisted,
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@ -242,31 +416,23 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
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NameValueStr: "message"
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),
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on_unimplemented,
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"the `#[rustc_on_unimplemented]` attribute is an experimental feature",
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experimental!(rustc_on_unimplemented),
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),
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gated!(
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rustc_const_unstable, Normal, template!(List: r#"feature = "name""#),
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"the `#[rustc_const_unstable]` attribute is an internal feature",
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),
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gated!(
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default_lib_allocator, Whitelisted, template!(Word), allocator_internals,
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"the `#[default_lib_allocator]` attribute is an experimental feature",
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),
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gated!(
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needs_allocator, Normal, template!(Word), allocator_internals,
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"the `#[needs_allocator]` attribute is an experimental feature",
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),
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gated!(
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panic_runtime, Whitelisted, template!(Word),
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"the `#[panic_runtime]` attribute is an experimental feature",
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),
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gated!(
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needs_panic_runtime, Whitelisted, template!(Word),
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"the `#[needs_panic_runtime]` attribute is an experimental feature",
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),
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rustc_attr!(TEST, rustc_outlives, Normal, template!(Word)),
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rustc_attr!(TEST, rustc_variance, Normal, template!(Word)),
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rustc_attr!(TEST, rustc_layout, Normal, template!(List: "field1, field2, ...")),
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// Whitelists "identity-like" conversion methods to suggest on type mismatch.
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rustc_attr!(rustc_conversion_suggestion, Whitelisted, template!(Word), INTERAL_UNSTABLE),
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// ==========================================================================
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// Internal attributes, Const related:
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// ==========================================================================
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rustc_attr!(rustc_promotable, Whitelisted, template!(Word), IMPL_DETAIL),
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rustc_attr!(rustc_allow_const_fn_ptr, Whitelisted, template!(Word), IMPL_DETAIL),
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rustc_attr!(rustc_args_required_const, Whitelisted, template!(List: "N"), INTERAL_UNSTABLE),
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// ==========================================================================
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// Internal attributes, Layout related:
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// ==========================================================================
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rustc_attr!(
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rustc_layout_scalar_valid_range_start, Whitelisted, template!(List: "value"),
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"the `#[rustc_layout_scalar_valid_range_start]` attribute is just used to enable \
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@ -282,6 +448,52 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
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"the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable \
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niche optimizations in libcore and will never be stable",
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),
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// ==========================================================================
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// Internal attributes, Misc:
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// ==========================================================================
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gated!(
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lang, Normal, template!(NameValueStr: "name"), lang_items,
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"language items are subject to change",
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),
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(
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sym::no_debug, Whitelisted, template!(Word),
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Gated(
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Stability::Deprecated("https://github.com/rust-lang/rust/issues/29721", None),
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sym::no_debug,
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"the `#[no_debug]` attribute was an experimental feature that has been \
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deprecated due to lack of demand",
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cfg_fn!(no_debug)
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)
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),
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gated!(
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// Used in resolve:
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prelude_import, Whitelisted, template!(Word),
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"`#[prelude_import]` is for use by rustc only",
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),
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gated!(
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rustc_paren_sugar, Normal, template!(Word), unboxed_closures,
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"unboxed_closures are still evolving",
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),
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rustc_attr!(
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rustc_inherit_overflow_checks, Whitelisted, template!(Word),
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"the `#[rustc_inherit_overflow_checks]` attribute is just used to control \
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overflow checking behavior of several libcore functions that are inlined \
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across crates and will never be stable",
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),
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rustc_attr!(
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rustc_test_marker, Normal, template!(Word),
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"the `#[rustc_test_marker]` attribute is used internally to track tests",
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),
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// ==========================================================================
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// Internal attributes, Testing:
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// ==========================================================================
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rustc_attr!(TEST, rustc_outlives, Normal, template!(Word)),
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rustc_attr!(TEST, rustc_variance, Normal, template!(Word)),
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rustc_attr!(TEST, rustc_layout, Normal, template!(List: "field1, field2, ...")),
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rustc_attr!(TEST, rustc_regions, Normal, template!(Word)),
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rustc_attr!(TEST, rustc_error, Whitelisted, template!(Word)),
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rustc_attr!(TEST, rustc_dump_user_substs, Whitelisted, template!(Word)),
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@ -308,211 +520,17 @@ pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
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template!(List: r#"cfg = "...", module = "...", kind = "...""#),
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),
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rustc_attr!(TEST, rustc_synthetic, Whitelisted, template!(Word)),
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rustc_attr!(
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rustc_symbol_name, Whitelisted, template!(Word),
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"internal rustc attributes will never be stable",
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),
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rustc_attr!(
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rustc_def_path, Whitelisted, template!(Word),
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"internal rustc attributes will never be stable",
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),
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rustc_attr!(TEST, rustc_symbol_name, Whitelisted, template!(Word)),
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rustc_attr!(TEST, rustc_def_path, Whitelisted, template!(Word)),
|
||||
rustc_attr!(TEST, rustc_mir, Whitelisted, template!(List: "arg1, arg2, ...")),
|
||||
rustc_attr!(
|
||||
rustc_inherit_overflow_checks, Whitelisted, template!(Word),
|
||||
"the `#[rustc_inherit_overflow_checks]` attribute is just used to control \
|
||||
overflow checking behavior of several libcore functions that are inlined \
|
||||
across crates and will never be stable",
|
||||
),
|
||||
rustc_attr!(TEST, rustc_dump_program_clauses, Whitelisted, template!(Word)),
|
||||
rustc_attr!(TEST, rustc_dump_env_program_clauses, Whitelisted, template!(Word)),
|
||||
rustc_attr!(TEST, rustc_object_lifetime_default, Whitelisted, template!(Word)),
|
||||
rustc_attr!(
|
||||
rustc_test_marker, Normal, template!(Word),
|
||||
"the `#[rustc_test_marker]` attribute is used internally to track tests",
|
||||
),
|
||||
rustc_attr!(
|
||||
rustc_macro_transparency, Whitelisted,
|
||||
template!(NameValueStr: "transparent|semitransparent|opaque"),
|
||||
"used internally for testing macro hygiene",
|
||||
),
|
||||
|
||||
gated!(
|
||||
compiler_builtins, Whitelisted, template!(Word),
|
||||
"the `#[compiler_builtins]` attribute is used to identify the `compiler_builtins` crate \
|
||||
which contains compiler-rt intrinsics and will never be stable",
|
||||
),
|
||||
gated!(
|
||||
sanitizer_runtime, Whitelisted, template!(Word),
|
||||
"the `#[sanitizer_runtime]` attribute is used to identify crates that contain the runtime \
|
||||
of a sanitizer and will never be stable",
|
||||
),
|
||||
gated!(
|
||||
profiler_runtime, Whitelisted, template!(Word),
|
||||
"the `#[profiler_runtime]` attribute is used to identify the `profiler_builtins` crate \
|
||||
which contains the profiler runtime and will never be stable",
|
||||
),
|
||||
|
||||
gated!(
|
||||
allow_internal_unstable, Normal, template!(Word, List: "feat1, feat2, ..."),
|
||||
EXPLAIN_ALLOW_INTERNAL_UNSTABLE,
|
||||
),
|
||||
gated!(allow_internal_unsafe, Normal, template!(Word), EXPLAIN_ALLOW_INTERNAL_UNSAFE),
|
||||
|
||||
gated!(
|
||||
fundamental, Whitelisted, template!(Word),
|
||||
"the `#[fundamental]` attribute is an experimental feature",
|
||||
),
|
||||
|
||||
ungated!(
|
||||
proc_macro_derive, Normal,
|
||||
template!(List: "TraitName, /*opt*/ attributes(name1, name2, ...)"),
|
||||
),
|
||||
|
||||
rustc_attr!(rustc_allocator, Whitelisted, template!(Word), "internal implementation detail"),
|
||||
rustc_attr!(
|
||||
rustc_allocator_nounwind, Whitelisted, template!(Word),
|
||||
"internal implementation detail",
|
||||
),
|
||||
rustc_attr!(
|
||||
rustc_builtin_macro, Whitelisted, template!(Word),
|
||||
"internal implementation detail"
|
||||
),
|
||||
rustc_attr!(rustc_promotable, Whitelisted, template!(Word), "internal implementation detail"),
|
||||
rustc_attr!(
|
||||
rustc_allow_const_fn_ptr, Whitelisted, template!(Word),
|
||||
"internal implementation detail",
|
||||
),
|
||||
rustc_attr!(rustc_dummy, Normal, template!(Word /* doesn't matter*/), "used by the test suite"),
|
||||
|
||||
// FIXME: #14408 whitelist docs since rustdoc looks at them
|
||||
ungated!(doc, Whitelisted, template!(List: "hidden|inline|...", NameValueStr: "string")),
|
||||
|
||||
// FIXME: #14406 these are processed in codegen, which happens after the lint pass
|
||||
|
||||
ungated!(cold, Whitelisted, template!(Word)),
|
||||
gated!(
|
||||
naked, Whitelisted, template!(Word), naked_functions,
|
||||
"the `#[naked]` attribute is an experimental feature",
|
||||
),
|
||||
gated!(
|
||||
ffi_returns_twice, Whitelisted, template!(Word),
|
||||
"the `#[ffi_returns_twice]` attribute is an experimental feature",
|
||||
),
|
||||
ungated!(target_feature, Whitelisted, template!(List: r#"enable = "name""#)),
|
||||
ungated!(export_name, Whitelisted, template!(NameValueStr: "name")),
|
||||
ungated!(inline, Whitelisted, template!(Word, List: "always|never")),
|
||||
ungated!(
|
||||
link, Whitelisted,
|
||||
template!(List: r#"name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ cfg = "...""#),
|
||||
),
|
||||
ungated!(link_name, Whitelisted, template!(NameValueStr: "name")),
|
||||
ungated!(link_section, Whitelisted, template!(NameValueStr: "name")),
|
||||
ungated!(no_builtins, Whitelisted, template!(Word)),
|
||||
(
|
||||
sym::no_debug, Whitelisted, template!(Word),
|
||||
Gated(
|
||||
Stability::Deprecated("https://github.com/rust-lang/rust/issues/29721", None),
|
||||
sym::no_debug,
|
||||
"the `#[no_debug]` attribute was an experimental feature that has been \
|
||||
deprecated due to lack of demand",
|
||||
cfg_fn!(no_debug)
|
||||
)
|
||||
),
|
||||
rustc_attr!(TEST, rustc_dummy, Normal, template!(Word /* doesn't matter*/)),
|
||||
gated!(
|
||||
omit_gdb_pretty_printer_section, Whitelisted, template!(Word),
|
||||
"the `#[omit_gdb_pretty_printer_section]` attribute is just used for the Rust test suite",
|
||||
),
|
||||
gated!(
|
||||
may_dangle, Normal, template!(Word), dropck_eyepatch,
|
||||
"`may_dangle` has unstable semantics and may be removed in the future",
|
||||
),
|
||||
gated!(
|
||||
unwind, Whitelisted, template!(List: "allowed|aborts"), unwind_attributes,
|
||||
"`#[unwind]` is experimental",
|
||||
),
|
||||
ungated!(used, Whitelisted, template!(Word)),
|
||||
|
||||
// Used in resolve:
|
||||
gated!(
|
||||
prelude_import, Whitelisted, template!(Word),
|
||||
"`#[prelude_import]` is for use by rustc only",
|
||||
),
|
||||
|
||||
// FIXME: #14407 these are only looked at on-demand so we can't
|
||||
// guarantee they'll have already been checked
|
||||
ungated!(
|
||||
rustc_deprecated, Whitelisted,
|
||||
template!(List: r#"since = "version", reason = "...""#)
|
||||
),
|
||||
ungated!(must_use, Whitelisted, template!(Word, NameValueStr: "reason")),
|
||||
ungated!(stable, Whitelisted, template!(List: r#"feature = "name", since = "version""#)),
|
||||
ungated!(
|
||||
unstable, Whitelisted,
|
||||
template!(List: r#"feature = "name", reason = "...", issue = "N""#),
|
||||
),
|
||||
ungated!(
|
||||
deprecated, Normal,
|
||||
template!(
|
||||
Word,
|
||||
List: r#"/*opt*/ since = "version", /*opt*/ note = "reason""#,
|
||||
NameValueStr: "reason"
|
||||
),
|
||||
),
|
||||
|
||||
gated!(
|
||||
rustc_paren_sugar, Normal, template!(Word), unboxed_closures,
|
||||
"unboxed_closures are still evolving",
|
||||
),
|
||||
|
||||
ungated!(windows_subsystem, Whitelisted, template!(NameValueStr: "windows|console")),
|
||||
|
||||
ungated!(proc_macro_attribute, Normal, template!(Word)),
|
||||
ungated!(proc_macro, Normal, template!(Word)),
|
||||
|
||||
rustc_attr!(rustc_proc_macro_decls, Normal, template!(Word), "used internally by rustc"),
|
||||
|
||||
gated!(allow_fail, Normal, template!(Word), "allow_fail attribute is currently unstable"),
|
||||
|
||||
rustc_attr!(
|
||||
rustc_std_internal_symbol, Whitelisted, template!(Word),
|
||||
"this is an internal attribute that will never be stable",
|
||||
),
|
||||
// whitelists "identity-like" conversion methods to suggest on type mismatch
|
||||
rustc_attr!(
|
||||
rustc_conversion_suggestion, Whitelisted, template!(Word),
|
||||
"this is an internal attribute that will never be stable",
|
||||
),
|
||||
rustc_attr!(
|
||||
rustc_args_required_const, Whitelisted, template!(List: "N"),
|
||||
"this is an internal attribute that will never be stable",
|
||||
),
|
||||
|
||||
// RFC 2070
|
||||
ungated!(panic_handler, Normal, template!(Word)),
|
||||
gated!(
|
||||
alloc_error_handler, Normal, template!(Word),
|
||||
"`#[alloc_error_handler]` is an unstable feature",
|
||||
),
|
||||
|
||||
// RFC 2412
|
||||
gated!(
|
||||
optimize, Whitelisted, template!(List: "size|speed"), optimize_attribute,
|
||||
"`#[optimize]` attribute is an unstable feature",
|
||||
),
|
||||
|
||||
// Crate level attributes
|
||||
ungated!(crate_name, CrateLevel, template!(NameValueStr: "name")),
|
||||
ungated!(crate_type, CrateLevel, template!(NameValueStr: "bin|lib|...")),
|
||||
ungated!(crate_id, CrateLevel, template!(NameValueStr: "ignored")),
|
||||
ungated!(feature, CrateLevel, template!(List: "name1, name1, ...")),
|
||||
ungated!(no_start, CrateLevel, template!(Word)),
|
||||
ungated!(no_main, CrateLevel, template!(Word)),
|
||||
ungated!(recursion_limit, CrateLevel, template!(NameValueStr: "N")),
|
||||
ungated!(type_length_limit, CrateLevel, template!(NameValueStr: "N")),
|
||||
gated!(
|
||||
test_runner, CrateLevel, template!(List: "path"), custom_test_frameworks,
|
||||
"custom test frameworks are an unstable feature",
|
||||
),
|
||||
];
|
||||
|
||||
pub fn deprecated_attributes() -> Vec<&'static BuiltinAttribute> {
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user