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internal: Update inert attribute list

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This commit is contained in:
Lukas Wirth 2022-07-05 11:54:46 +02:00
parent ed44fe52e4
commit 383ee6af5e
1 changed files with 318 additions and 173 deletions
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491
crates/hir-def/src/builtin_attr.rs
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@ -2,7 +2,7 @@
//! //!
//! The actual definitions were copied from rustc's `compiler/rustc_feature/src/builtin_attrs.rs`. //! The actual definitions were copied from rustc's `compiler/rustc_feature/src/builtin_attrs.rs`.
//! //!
//! It was last synchronized with upstream commit ae90dcf0207c57c3034f00b07048d63f8b2363c8. //! It was last synchronized with upstream commit c1a2db3372a4d6896744919284f3287650a38ab7.
//! //!
//! The macros were adjusted to only expand to the attribute name, since that is all we need to do //! The macros were adjusted to only expand to the attribute name, since that is all we need to do
//! name resolution, and `BUILTIN_ATTRIBUTES` is almost entirely unchanged from the original, to //! name resolution, and `BUILTIN_ATTRIBUTES` is almost entirely unchanged from the original, to
@ -66,26 +66,28 @@ macro_rules! template {
} }
macro_rules! ungated { macro_rules! ungated {
($attr:ident, $typ:expr, $tpl:expr $(,)?) => { ($attr:ident, $typ:expr, $tpl:expr, $duplicates:expr $(, @only_local: $only_local:expr)? $(,)?) => {
BuiltinAttribute { name: stringify!($attr), template: $tpl } BuiltinAttribute { name: stringify!($attr), template: $tpl }
}; };
} }
macro_rules! gated { macro_rules! gated {
($attr:ident, $typ:expr, $tpl:expr, $gate:ident, $msg:expr $(,)?) => { ($attr:ident, $typ:expr, $tpl:expr, $duplicates:expr $(, @only_local: $only_local:expr)?, $gate:ident, $msg:expr $(,)?) => {
BuiltinAttribute { name: stringify!($attr), template: $tpl } BuiltinAttribute { name: stringify!($attr), template: $tpl }
}; };
($attr:ident, $typ:expr, $tpl:expr, $msg:expr $(,)?) => { ($attr:ident, $typ:expr, $tpl:expr, $duplicates:expr $(, @only_local: $only_local:expr)?, $msg:expr $(,)?) => {
BuiltinAttribute { name: stringify!($attr), template: $tpl } BuiltinAttribute { name: stringify!($attr), template: $tpl }
}; };
} }
macro_rules! rustc_attr { macro_rules! rustc_attr {
(TEST, $attr:ident, $typ:expr, $tpl:expr $(,)?) => { (TEST, $attr:ident, $typ:expr, $tpl:expr, $duplicate:expr $(, @only_local: $only_local:expr)? $(,)?) => {
rustc_attr!( rustc_attr!(
$attr, $attr,
$typ, $typ,
$tpl, $tpl,
$duplicate,
$(@only_local: $only_local,)?
concat!( concat!(
"the `#[", "the `#[",
stringify!($attr), stringify!($attr),
@ -94,11 +96,18 @@ macro_rules! rustc_attr {
), ),
) )
}; };
($attr:ident, $typ:expr, $tpl:expr, $msg:expr $(,)?) => { ($attr:ident, $typ:expr, $tpl:expr, $duplicates:expr $(, @only_local: $only_local:expr)?, $msg:expr $(,)?) => {
BuiltinAttribute { name: stringify!($attr), template: $tpl } BuiltinAttribute { name: stringify!($attr), template: $tpl }
}; };
} }
#[allow(unused_macros)]
macro_rules! experimental {
($attr:ident) => {
concat!("the `#[", stringify!($attr), "]` attribute is an experimental feature")
};
}
/// "Inert" built-in attributes that have a special meaning to rustc or rustdoc. /// "Inert" built-in attributes that have a special meaning to rustc or rustdoc.
#[rustfmt::skip] #[rustfmt::skip]
pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
@ -107,38 +116,52 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
// ========================================================================== // ==========================================================================
// Conditional compilation: // Conditional compilation:
ungated!(cfg, Normal, template!(List: "predicate")), ungated!(cfg, Normal, template!(List: "predicate"), DuplicatesOk),
ungated!(cfg_attr, Normal, template!(List: "predicate, attr1, attr2, ...")), ungated!(cfg_attr, Normal, template!(List: "predicate, attr1, attr2, ..."), DuplicatesOk),
// Testing: // Testing:
ungated!(ignore, Normal, template!(Word, NameValueStr: "reason")), ungated!(ignore, Normal, template!(Word, NameValueStr: "reason"), WarnFollowing),
ungated!( ungated!(
should_panic, Normal, should_panic, Normal,
template!(Word, List: r#"expected = "reason"#, NameValueStr: "reason"), template!(Word, List: r#"expected = "reason"#, NameValueStr: "reason"), FutureWarnFollowing,
), ),
// FIXME(Centril): This can be used on stable but shouldn't. // FIXME(Centril): This can be used on stable but shouldn't.
ungated!(reexport_test_harness_main, Normal, template!(NameValueStr: "name")), ungated!(reexport_test_harness_main, CrateLevel, template!(NameValueStr: "name"), ErrorFollowing),
// Macros: // Macros:
ungated!(automatically_derived, Normal, template!(Word)), ungated!(automatically_derived, Normal, template!(Word), WarnFollowing),
// FIXME(#14407) ungated!(macro_use, Normal, template!(Word, List: "name1, name2, ..."), WarnFollowingWordOnly),
ungated!(macro_use, Normal, template!(Word, List: "name1, name2, ...")), ungated!(macro_escape, Normal, template!(Word), WarnFollowing), // Deprecated synonym for `macro_use`.
ungated!(macro_escape, Normal, template!(Word)), // Deprecated synonym for `macro_use`. ungated!(macro_export, Normal, template!(Word, List: "local_inner_macros"), WarnFollowing),
ungated!(macro_export, Normal, template!(Word, List: "local_inner_macros")), ungated!(proc_macro, Normal, template!(Word), ErrorFollowing),
ungated!(proc_macro, Normal, template!(Word)),
ungated!( ungated!(
proc_macro_derive, Normal, proc_macro_derive, Normal,
template!(List: "TraitName, /*opt*/ attributes(name1, name2, ...)"), template!(List: "TraitName, /*opt*/ attributes(name1, name2, ...)"), ErrorFollowing,
), ),
ungated!(proc_macro_attribute, Normal, template!(Word)), ungated!(proc_macro_attribute, Normal, template!(Word), ErrorFollowing),
// Lints: // Lints:
ungated!(warn, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)), ungated!(
ungated!(allow, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)), warn, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#), DuplicatesOk
ungated!(forbid, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)), ),
ungated!(deny, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#)), ungated!(
ungated!(must_use, AssumedUsed, template!(Word, NameValueStr: "reason")), allow, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#), DuplicatesOk
// FIXME(#14407) ),
gated!(
expect, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#), DuplicatesOk,
lint_reasons, experimental!(expect)
),
ungated!(
forbid, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#), DuplicatesOk
),
ungated!(
deny, Normal, template!(List: r#"lint1, lint2, ..., /*opt*/ reason = "...""#), DuplicatesOk
),
ungated!(must_use, Normal, template!(Word, NameValueStr: "reason"), FutureWarnFollowing),
gated!(
must_not_suspend, Normal, template!(Word, NameValueStr: "reason"), WarnFollowing,
experimental!(must_not_suspend)
),
ungated!( ungated!(
deprecated, Normal, deprecated, Normal,
template!( template!(
@ -146,160 +169,198 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
List: r#"/*opt*/ since = "version", /*opt*/ note = "reason""#, List: r#"/*opt*/ since = "version", /*opt*/ note = "reason""#,
NameValueStr: "reason" NameValueStr: "reason"
), ),
ErrorFollowing
), ),
// Crate properties: // Crate properties:
ungated!(crate_name, CrateLevel, template!(NameValueStr: "name")), ungated!(crate_name, CrateLevel, template!(NameValueStr: "name"), FutureWarnFollowing),
ungated!(crate_type, CrateLevel, template!(NameValueStr: "bin|lib|...")), ungated!(crate_type, CrateLevel, template!(NameValueStr: "bin|lib|..."), DuplicatesOk),
ungated!(crate_id, CrateLevel, template!(NameValueStr: "ignored")), // crate_id is deprecated
ungated!(crate_id, CrateLevel, template!(NameValueStr: "ignored"), FutureWarnFollowing),
// ABI, linking, symbols, and FFI // ABI, linking, symbols, and FFI
ungated!( ungated!(
link, AssumedUsed, link, Normal,
template!(List: r#"name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...""#), template!(List: r#"name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...""#),
DuplicatesOk,
), ),
ungated!(link_name, AssumedUsed, template!(NameValueStr: "name")), ungated!(link_name, Normal, template!(NameValueStr: "name"), FutureWarnPreceding),
ungated!(no_link, AssumedUsed, template!(Word)), ungated!(no_link, Normal, template!(Word), WarnFollowing),
ungated!(repr, AssumedUsed, template!(List: "C")), ungated!(repr, Normal, template!(List: "C"), DuplicatesOk),
ungated!(export_name, AssumedUsed, template!(NameValueStr: "name")), ungated!(export_name, Normal, template!(NameValueStr: "name"), FutureWarnPreceding),
ungated!(link_section, AssumedUsed, template!(NameValueStr: "name")), ungated!(link_section, Normal, template!(NameValueStr: "name"), FutureWarnPreceding),
ungated!(no_mangle, AssumedUsed, template!(Word)), ungated!(no_mangle, Normal, template!(Word), WarnFollowing, @only_local: true),
ungated!(used, AssumedUsed, template!(Word)), ungated!(used, Normal, template!(Word, List: "compiler|linker"), WarnFollowing, @only_local: true),
// Limits: // Limits:
ungated!(recursion_limit, CrateLevel, template!(NameValueStr: "N")), ungated!(recursion_limit, CrateLevel, template!(NameValueStr: "N"), FutureWarnFollowing),
ungated!(type_length_limit, CrateLevel, template!(NameValueStr: "N")), ungated!(type_length_limit, CrateLevel, template!(NameValueStr: "N"), FutureWarnFollowing),
gated!( gated!(
const_eval_limit, CrateLevel, template!(NameValueStr: "N"), const_eval_limit, const_eval_limit, CrateLevel, template!(NameValueStr: "N"), ErrorFollowing,
experimental!(const_eval_limit) const_eval_limit, experimental!(const_eval_limit)
), ),
gated!( gated!(
move_size_limit, CrateLevel, template!(NameValueStr: "N"), large_assignments, move_size_limit, CrateLevel, template!(NameValueStr: "N"), ErrorFollowing,
experimental!(move_size_limit) large_assignments, experimental!(move_size_limit)
), ),
// Entry point: // Entry point:
ungated!(main, Normal, template!(Word)), ungated!(start, Normal, template!(Word), WarnFollowing),
ungated!(start, Normal, template!(Word)), ungated!(no_start, CrateLevel, template!(Word), WarnFollowing),
ungated!(no_start, CrateLevel, template!(Word)), ungated!(no_main, CrateLevel, template!(Word), WarnFollowing),
ungated!(no_main, CrateLevel, template!(Word)),
// Modules, prelude, and resolution: // Modules, prelude, and resolution:
ungated!(path, Normal, template!(NameValueStr: "file")), ungated!(path, Normal, template!(NameValueStr: "file"), FutureWarnFollowing),
ungated!(no_std, CrateLevel, template!(Word)), ungated!(no_std, CrateLevel, template!(Word), WarnFollowing),
ungated!(no_implicit_prelude, Normal, template!(Word)), ungated!(no_implicit_prelude, Normal, template!(Word), WarnFollowing),
ungated!(non_exhaustive, AssumedUsed, template!(Word)), ungated!(non_exhaustive, Normal, template!(Word), WarnFollowing),
// Runtime // Runtime
ungated!(windows_subsystem, AssumedUsed, template!(NameValueStr: "windows|console")), ungated!(
ungated!(panic_handler, Normal, template!(Word)), // RFC 2070 windows_subsystem, CrateLevel,
template!(NameValueStr: "windows|console"), FutureWarnFollowing
),
ungated!(panic_handler, Normal, template!(Word), WarnFollowing), // RFC 2070
// Code generation: // Code generation:
ungated!(inline, AssumedUsed, template!(Word, List: "always|never")), ungated!(inline, Normal, template!(Word, List: "always|never"), FutureWarnFollowing, @only_local: true),
ungated!(cold, AssumedUsed, template!(Word)), ungated!(cold, Normal, template!(Word), WarnFollowing, @only_local: true),
ungated!(no_builtins, AssumedUsed, template!(Word)), ungated!(no_builtins, CrateLevel, template!(Word), WarnFollowing),
ungated!(target_feature, AssumedUsed, template!(List: r#"enable = "name""#)), ungated!(target_feature, Normal, template!(List: r#"enable = "name""#), DuplicatesOk),
ungated!(track_caller, AssumedUsed, template!(Word)), ungated!(track_caller, Normal, template!(Word), WarnFollowing),
gated!( gated!(
no_sanitize, AssumedUsed, no_sanitize, Normal,
template!(List: "address, memory, thread"), template!(List: "address, memory, thread"), DuplicatesOk,
experimental!(no_sanitize) experimental!(no_sanitize)
), ),
gated!(no_coverage, AssumedUsed, template!(Word), experimental!(no_coverage)), gated!(no_coverage, Normal, template!(Word), WarnFollowing, experimental!(no_coverage)),
// FIXME: #14408 assume docs are used since rustdoc looks at them. ungated!(
ungated!(doc, AssumedUsed, template!(List: "hidden|inline|...", NameValueStr: "string")), doc, Normal, template!(List: "hidden|inline|...", NameValueStr: "string"), DuplicatesOk
),
// ========================================================================== // ==========================================================================
// Unstable attributes: // Unstable attributes:
// ========================================================================== // ==========================================================================
// Linking: // RFC #3191: #[debugger_visualizer] support
gated!(naked, AssumedUsed, template!(Word), naked_functions, experimental!(naked)),
gated!( gated!(
link_ordinal, AssumedUsed, template!(List: "ordinal"), raw_dylib, debugger_visualizer, Normal, template!(List: r#"natvis_file = "...", gdb_script_file = "...""#),
DuplicatesOk, experimental!(debugger_visualizer)
),
// Linking:
gated!(naked, Normal, template!(Word), WarnFollowing, @only_local: true, naked_functions, experimental!(naked)),
gated!(
link_ordinal, Normal, template!(List: "ordinal"), ErrorPreceding, raw_dylib,
experimental!(link_ordinal) experimental!(link_ordinal)
), ),
// Plugins: // Plugins:
// XXX Modified for use in rust-analyzer // XXX Modified for use in rust-analyzer
gated!(plugin_registrar, Normal, template!(Word), experimental!()), // BuiltinAttribute {
gated!(plugin, CrateLevel, template!(Word), experimental!()), // name: sym::plugin,
// only_local: false,
// type_: CrateLevel,
// template: template!(List: "name"),
// duplicates: DuplicatesOk,
// gate: Gated(
// Stability::Deprecated(
// "https://github.com/rust-lang/rust/pull/64675",
// Some("may be removed in a future compiler version"),
// ),
// sym::plugin,
// "compiler plugins are deprecated",
// cfg_fn!(plugin)
// ),
// },
BuiltinAttribute {
name: "plugin",
template: template!(List: "name"),
},
// Testing: // Testing:
gated!(allow_fail, Normal, template!(Word), experimental!(allow_fail)),
gated!( gated!(
test_runner, CrateLevel, template!(List: "path"), custom_test_frameworks, test_runner, CrateLevel, template!(List: "path"), ErrorFollowing, custom_test_frameworks,
"custom test frameworks are an unstable feature", "custom test frameworks are an unstable feature",
), ),
// RFC #1268 // RFC #1268
gated!(marker, AssumedUsed, template!(Word), marker_trait_attr, experimental!(marker)),
gated!( gated!(
thread_local, AssumedUsed, template!(Word), marker, Normal, template!(Word), WarnFollowing, marker_trait_attr, experimental!(marker)
),
gated!(
thread_local, Normal, template!(Word), WarnFollowing,
"`#[thread_local]` is an experimental feature, and does not currently handle destructors", "`#[thread_local]` is an experimental feature, and does not currently handle destructors",
), ),
gated!(no_core, CrateLevel, template!(Word), experimental!(no_core)), gated!(no_core, CrateLevel, template!(Word), WarnFollowing, experimental!(no_core)),
// RFC 2412 // RFC 2412
gated!( gated!(
optimize, AssumedUsed, template!(List: "size|speed"), optimize_attribute, optimize, Normal, template!(List: "size|speed"), ErrorPreceding, optimize_attribute,
experimental!(optimize), experimental!(optimize),
), ),
// RFC 2867 // RFC 2867
gated!(instruction_set, AssumedUsed, template!(List: "set"), isa_attribute, experimental!(instruction_set)),
gated!(ffi_returns_twice, AssumedUsed, template!(Word), experimental!(ffi_returns_twice)),
gated!(ffi_pure, AssumedUsed, template!(Word), experimental!(ffi_pure)),
gated!(ffi_const, AssumedUsed, template!(Word), experimental!(ffi_const)),
gated!( gated!(
register_attr, CrateLevel, template!(List: "attr1, attr2, ..."), instruction_set, Normal, template!(List: "set"), ErrorPreceding,
isa_attribute, experimental!(instruction_set)
),
gated!(
ffi_returns_twice, Normal, template!(Word), WarnFollowing, experimental!(ffi_returns_twice)
),
gated!(ffi_pure, Normal, template!(Word), WarnFollowing, experimental!(ffi_pure)),
gated!(ffi_const, Normal, template!(Word), WarnFollowing, experimental!(ffi_const)),
gated!(
register_attr, CrateLevel, template!(List: "attr1, attr2, ..."), DuplicatesOk,
experimental!(register_attr), experimental!(register_attr),
), ),
gated!( gated!(
register_tool, CrateLevel, template!(List: "tool1, tool2, ..."), register_tool, CrateLevel, template!(List: "tool1, tool2, ..."), DuplicatesOk,
experimental!(register_tool), experimental!(register_tool),
), ),
gated!(cmse_nonsecure_entry, AssumedUsed, template!(Word), experimental!(cmse_nonsecure_entry)), gated!(
cmse_nonsecure_entry, Normal, template!(Word), WarnFollowing,
experimental!(cmse_nonsecure_entry)
),
// RFC 2632 // RFC 2632
gated!( gated!(
default_method_body_is_const, AssumedUsed, template!(Word), const_trait_impl, const_trait, Normal, template!(Word), WarnFollowing, const_trait_impl,
"`default_method_body_is_const` is a temporary placeholder for declaring default bodies \ "`const` is a temporary placeholder for marking a trait that is suitable for `const` \
as `const`, which may be removed or renamed in the future." `impls` and all default bodies as `const`, which may be removed or renamed in the \
future."
),
// lang-team MCP 147
gated!(
deprecated_safe, Normal, template!(List: r#"since = "version", note = "...""#), ErrorFollowing,
experimental!(deprecated_safe),
), ),
// ========================================================================== // ==========================================================================
// Internal attributes: Stability, deprecation, and unsafe: // Internal attributes: Stability, deprecation, and unsafe:
// ========================================================================== // ==========================================================================
ungated!(feature, CrateLevel, template!(List: "name1, name1, ...")), ungated!(feature, CrateLevel, template!(List: "name1, name2, ..."), DuplicatesOk),
// FIXME(#14407) -- only looked at on-demand so we can't // DuplicatesOk since it has its own validation
// guarantee they'll have already been checked.
// FIXME(jhpratt) remove this when #[rustc_deprecated] is fully removed from the compiler
ungated!( ungated!(
rustc_deprecated, AssumedUsed, stable, Normal, template!(List: r#"feature = "name", since = "version""#), DuplicatesOk,
template!(List: r#"since = "version", reason = "...""#)
), ),
// FIXME(#14407)
ungated!(stable, AssumedUsed, template!(List: r#"feature = "name", since = "version""#)),
// FIXME(#14407)
ungated!( ungated!(
unstable, AssumedUsed, unstable, Normal,
template!(List: r#"feature = "name", reason = "...", issue = "N""#), template!(List: r#"feature = "name", reason = "...", issue = "N""#), DuplicatesOk,
), ),
// FIXME(#14407) ungated!(rustc_const_unstable, Normal, template!(List: r#"feature = "name""#), DuplicatesOk),
ungated!(rustc_const_unstable, AssumedUsed, template!(List: r#"feature = "name""#)), ungated!(rustc_const_stable, Normal, template!(List: r#"feature = "name""#), DuplicatesOk),
// FIXME(#14407)
ungated!(rustc_const_stable, AssumedUsed, template!(List: r#"feature = "name""#)),
gated!( gated!(
allow_internal_unstable, AssumedUsed, template!(Word, List: "feat1, feat2, ..."), allow_internal_unstable, Normal, template!(Word, List: "feat1, feat2, ..."), DuplicatesOk,
"allow_internal_unstable side-steps feature gating and stability checks", "allow_internal_unstable side-steps feature gating and stability checks",
), ),
gated!( gated!(
rustc_allow_const_fn_unstable, AssumedUsed, template!(Word, List: "feat1, feat2, ..."), rustc_allow_const_fn_unstable, Normal,
template!(Word, List: "feat1, feat2, ..."), DuplicatesOk,
"rustc_allow_const_fn_unstable side-steps feature gating and stability checks" "rustc_allow_const_fn_unstable side-steps feature gating and stability checks"
), ),
gated!( gated!(
allow_internal_unsafe, Normal, template!(Word), allow_internal_unsafe, Normal, template!(Word), WarnFollowing,
"allow_internal_unsafe side-steps the unsafe_code lint", "allow_internal_unsafe side-steps the unsafe_code lint",
), ),
@ -307,9 +368,9 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
// Internal attributes: Type system related: // Internal attributes: Type system related:
// ========================================================================== // ==========================================================================
gated!(fundamental, AssumedUsed, template!(Word), experimental!(fundamental)), gated!(fundamental, Normal, template!(Word), WarnFollowing, experimental!(fundamental)),
gated!( gated!(
may_dangle, Normal, template!(Word), dropck_eyepatch, may_dangle, Normal, template!(Word), WarnFollowing, dropck_eyepatch,
"`may_dangle` has unstable semantics and may be removed in the future", "`may_dangle` has unstable semantics and may be removed in the future",
), ),
@ -317,26 +378,32 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
// Internal attributes: Runtime related: // Internal attributes: Runtime related:
// ========================================================================== // ==========================================================================
rustc_attr!(rustc_allocator, AssumedUsed, template!(Word), IMPL_DETAIL), rustc_attr!(rustc_allocator, Normal, template!(Word), WarnFollowing, IMPL_DETAIL),
rustc_attr!(rustc_allocator_nounwind, AssumedUsed, template!(Word), IMPL_DETAIL), rustc_attr!(rustc_allocator_nounwind, Normal, template!(Word), WarnFollowing, IMPL_DETAIL),
gated!(alloc_error_handler, Normal, template!(Word), experimental!(alloc_error_handler)),
gated!( gated!(
default_lib_allocator, AssumedUsed, template!(Word), allocator_internals, alloc_error_handler, Normal, template!(Word), WarnFollowing,
experimental!(alloc_error_handler)
),
gated!(
default_lib_allocator, Normal, template!(Word), WarnFollowing, allocator_internals,
experimental!(default_lib_allocator), experimental!(default_lib_allocator),
), ),
gated!( gated!(
needs_allocator, Normal, template!(Word), allocator_internals, needs_allocator, Normal, template!(Word), WarnFollowing, allocator_internals,
experimental!(needs_allocator), experimental!(needs_allocator),
), ),
gated!(panic_runtime, AssumedUsed, template!(Word), experimental!(panic_runtime)), gated!(panic_runtime, Normal, template!(Word), WarnFollowing, experimental!(panic_runtime)),
gated!(needs_panic_runtime, AssumedUsed, template!(Word), experimental!(needs_panic_runtime)),
gated!( gated!(
compiler_builtins, AssumedUsed, template!(Word), needs_panic_runtime, Normal, template!(Word), WarnFollowing,
experimental!(needs_panic_runtime)
),
gated!(
compiler_builtins, Normal, template!(Word), WarnFollowing,
"the `#[compiler_builtins]` attribute is used to identify the `compiler_builtins` crate \ "the `#[compiler_builtins]` attribute is used to identify the `compiler_builtins` crate \
which contains compiler-rt intrinsics and will never be stable", which contains compiler-rt intrinsics and will never be stable",
), ),
gated!( gated!(
profiler_runtime, AssumedUsed, template!(Word), profiler_runtime, Normal, template!(Word), WarnFollowing,
"the `#[profiler_runtime]` attribute is used to identify the `profiler_builtins` crate \ "the `#[profiler_runtime]` attribute is used to identify the `profiler_builtins` crate \
which contains the profiler runtime and will never be stable", which contains the profiler runtime and will never be stable",
), ),
@ -346,24 +413,26 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
// ========================================================================== // ==========================================================================
gated!( gated!(
linkage, AssumedUsed, template!(NameValueStr: "external|internal|..."), linkage, Normal, template!(NameValueStr: "external|internal|..."), ErrorPreceding, @only_local: true,
"the `linkage` attribute is experimental and not portable across platforms", "the `linkage` attribute is experimental and not portable across platforms",
), ),
rustc_attr!(rustc_std_internal_symbol, AssumedUsed, template!(Word), INTERNAL_UNSTABLE), rustc_attr!(
rustc_std_internal_symbol, Normal, template!(Word), WarnFollowing, @only_local: true, INTERNAL_UNSTABLE
),
// ========================================================================== // ==========================================================================
// Internal attributes, Macro related: // Internal attributes, Macro related:
// ========================================================================== // ==========================================================================
rustc_attr!( rustc_attr!(
rustc_builtin_macro, AssumedUsed, rustc_builtin_macro, Normal,
template!(Word, List: "name, /*opt*/ attributes(name1, name2, ...)"), template!(Word, List: "name, /*opt*/ attributes(name1, name2, ...)"), ErrorFollowing,
IMPL_DETAIL, IMPL_DETAIL,
), ),
rustc_attr!(rustc_proc_macro_decls, Normal, template!(Word), INTERNAL_UNSTABLE), rustc_attr!(rustc_proc_macro_decls, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE),
rustc_attr!( rustc_attr!(
rustc_macro_transparency, AssumedUsed, rustc_macro_transparency, Normal,
template!(NameValueStr: "transparent|semitransparent|opaque"), template!(NameValueStr: "transparent|semitransparent|opaque"), ErrorFollowing,
"used internally for testing macro hygiene", "used internally for testing macro hygiene",
), ),
@ -372,138 +441,214 @@ pub const INERT_ATTRIBUTES: &[BuiltinAttribute] = &[
// ========================================================================== // ==========================================================================
rustc_attr!( rustc_attr!(
rustc_on_unimplemented, AssumedUsed, rustc_on_unimplemented, Normal,
template!( template!(
List: r#"/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...""#, List: r#"/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...""#,
NameValueStr: "message" NameValueStr: "message"
), ),
ErrorFollowing,
INTERNAL_UNSTABLE INTERNAL_UNSTABLE
), ),
// Enumerates "identity-like" conversion methods to suggest on type mismatch. // Enumerates "identity-like" conversion methods to suggest on type mismatch.
rustc_attr!(rustc_conversion_suggestion, AssumedUsed, template!(Word), INTERNAL_UNSTABLE), rustc_attr!(
rustc_conversion_suggestion, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE
),
// Prevents field reads in the marked trait or method to be considered
// during dead code analysis.
rustc_attr!(
rustc_trivial_field_reads, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE
),
// Used by the `rustc::potential_query_instability` lint to warn methods which
// might not be stable during incremental compilation.
rustc_attr!(rustc_lint_query_instability, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE),
// Used by the `rustc::untranslatable_diagnostic` and `rustc::diagnostic_outside_of_impl` lints
// to assist in changes to diagnostic APIs.
rustc_attr!(rustc_lint_diagnostics, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE),
// ========================================================================== // ==========================================================================
// Internal attributes, Const related: // Internal attributes, Const related:
// ========================================================================== // ==========================================================================
rustc_attr!(rustc_promotable, AssumedUsed, template!(Word), IMPL_DETAIL), rustc_attr!(rustc_promotable, Normal, template!(Word), WarnFollowing, IMPL_DETAIL),
rustc_attr!(rustc_legacy_const_generics, AssumedUsed, template!(List: "N"), INTERNAL_UNSTABLE), rustc_attr!(
rustc_legacy_const_generics, Normal, template!(List: "N"), ErrorFollowing,
INTERNAL_UNSTABLE
),
// Do not const-check this function's body. It will always get replaced during CTFE.
rustc_attr!(
rustc_do_not_const_check, Normal, template!(Word), WarnFollowing, INTERNAL_UNSTABLE
),
// ========================================================================== // ==========================================================================
// Internal attributes, Layout related: // Internal attributes, Layout related:
// ========================================================================== // ==========================================================================
rustc_attr!( rustc_attr!(
rustc_layout_scalar_valid_range_start, AssumedUsed, template!(List: "value"), rustc_layout_scalar_valid_range_start, Normal, template!(List: "value"), ErrorFollowing,
"the `#[rustc_layout_scalar_valid_range_start]` attribute is just used to enable \ "the `#[rustc_layout_scalar_valid_range_start]` attribute is just used to enable \
niche optimizations in libcore and will never be stable", niche optimizations in libcore and libstd and will never be stable",
), ),
rustc_attr!( rustc_attr!(
rustc_layout_scalar_valid_range_end, AssumedUsed, template!(List: "value"), rustc_layout_scalar_valid_range_end, Normal, template!(List: "value"), ErrorFollowing,
"the `#[rustc_layout_scalar_valid_range_end]` attribute is just used to enable \ "the `#[rustc_layout_scalar_valid_range_end]` attribute is just used to enable \
niche optimizations in libcore and will never be stable", niche optimizations in libcore and libstd and will never be stable",
), ),
rustc_attr!( rustc_attr!(
rustc_nonnull_optimization_guaranteed, AssumedUsed, template!(Word), rustc_nonnull_optimization_guaranteed, Normal, template!(Word), WarnFollowing,
"the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable \ "the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable \
niche optimizations in libcore and will never be stable", niche optimizations in libcore and libstd and will never be stable",
), ),
// ========================================================================== // ==========================================================================
// Internal attributes, Misc: // Internal attributes, Misc:
// ========================================================================== // ==========================================================================
gated!( gated!(
lang, Normal, template!(NameValueStr: "name"), lang_items, lang, Normal, template!(NameValueStr: "name"), DuplicatesOk, @only_local: true, lang_items,
"language items are subject to change", "language items are subject to change",
), ),
gated!(rustc_diagnostic_item, Normal, template!(NameValueStr: "name"), experimental!()), // XXX Modified for use in rust-analyzer rustc_attr!(
rustc_pass_by_value, Normal,
template!(Word), ErrorFollowing,
"#[rustc_pass_by_value] is used to mark types that must be passed by value instead of reference."
),
rustc_attr!(
rustc_coherence_is_core, AttributeType::CrateLevel, template!(Word), ErrorFollowing, @only_local: true,
"#![rustc_coherence_is_core] allows inherent methods on builtin types, only intended to be used in `core`."
),
rustc_attr!(
rustc_allow_incoherent_impl, AttributeType::Normal, template!(Word), ErrorFollowing, @only_local: true,
"#[rustc_allow_incoherent_impl] has to be added to all impl items of an incoherent inherent impl."
),
rustc_attr!(
rustc_has_incoherent_inherent_impls, AttributeType::Normal, template!(Word), ErrorFollowing,
"#[rustc_has_incoherent_inherent_impls] allows the addition of incoherent inherent impls for \
the given type by annotating all impl items with #[rustc_allow_incoherent_impl]."
),
rustc_attr!(
rustc_box, AttributeType::Normal, template!(Word), ErrorFollowing,
"#[rustc_box] allows creating boxes \
and it is only intended to be used in `alloc`."
),
// modified for r-a
// BuiltinAttribute {
// name: sym::rustc_diagnostic_item,
// // FIXME: This can be `true` once we always use `tcx.is_diagnostic_item`.
// only_local: false,
// type_: Normal,
// template: template!(NameValueStr: "name"),
// duplicates: ErrorFollowing,
// gate: Gated(
// Stability::Unstable,
// sym::rustc_attrs,
// "diagnostic items compiler internal support for linting",
// cfg_fn!(rustc_attrs),
// ),
// },
BuiltinAttribute {
name: "rustc_diagnostic_item",
template: template!(NameValueStr: "name"),
},
gated!( gated!(
// Used in resolve: // Used in resolve:
prelude_import, AssumedUsed, template!(Word), prelude_import, Normal, template!(Word), WarnFollowing,
"`#[prelude_import]` is for use by rustc only", "`#[prelude_import]` is for use by rustc only",
), ),
gated!( gated!(
rustc_paren_sugar, Normal, template!(Word), unboxed_closures, rustc_paren_sugar, Normal, template!(Word), WarnFollowing, unboxed_closures,
"unboxed_closures are still evolving", "unboxed_closures are still evolving",
), ),
rustc_attr!( rustc_attr!(
rustc_inherit_overflow_checks, AssumedUsed, template!(Word), rustc_inherit_overflow_checks, Normal, template!(Word), WarnFollowing, @only_local: true,
"the `#[rustc_inherit_overflow_checks]` attribute is just used to control \ "the `#[rustc_inherit_overflow_checks]` attribute is just used to control \
overflow checking behavior of several libcore functions that are inlined \ overflow checking behavior of several libcore functions that are inlined \
across crates and will never be stable", across crates and will never be stable",
), ),
rustc_attr!(rustc_reservation_impl, Normal, template!(NameValueStr: "reservation message"), rustc_attr!(
"the `#[rustc_reservation_impl]` attribute is internally used \ rustc_reservation_impl, Normal,
for reserving for `for<T> From<!> for T` impl" template!(NameValueStr: "reservation message"), ErrorFollowing,
"the `#[rustc_reservation_impl]` attribute is internally used \
for reserving for `for<T> From<!> for T` impl"
), ),
rustc_attr!( rustc_attr!(
rustc_test_marker, Normal, template!(Word), rustc_test_marker, Normal, template!(Word), WarnFollowing,
"the `#[rustc_test_marker]` attribute is used internally to track tests", "the `#[rustc_test_marker]` attribute is used internally to track tests",
), ),
rustc_attr!( rustc_attr!(
rustc_unsafe_specialization_marker, Normal, template!(Word), rustc_unsafe_specialization_marker, Normal, template!(Word), WarnFollowing,
"the `#[rustc_unsafe_specialization_marker]` attribute is used to check specializations" "the `#[rustc_unsafe_specialization_marker]` attribute is used to check specializations"
), ),
rustc_attr!( rustc_attr!(
rustc_specialization_trait, Normal, template!(Word), rustc_specialization_trait, Normal, template!(Word), WarnFollowing,
"the `#[rustc_specialization_trait]` attribute is used to check specializations" "the `#[rustc_specialization_trait]` attribute is used to check specializations"
), ),
rustc_attr!( rustc_attr!(
rustc_main, Normal, template!(Word), rustc_main, Normal, template!(Word), WarnFollowing,
"the `#[rustc_main]` attribute is used internally to specify test entry point function", "the `#[rustc_main]` attribute is used internally to specify test entry point function",
), ),
rustc_attr!( rustc_attr!(
rustc_skip_array_during_method_dispatch, Normal, template!(Word), rustc_skip_array_during_method_dispatch, Normal, template!(Word), WarnFollowing,
"the `#[rustc_skip_array_during_method_dispatch]` attribute is used to exclude a trait \ "the `#[rustc_skip_array_during_method_dispatch]` attribute is used to exclude a trait \
from method dispatch when the receiver is an array, for compatibility in editions < 2021." from method dispatch when the receiver is an array, for compatibility in editions < 2021."
), ),
rustc_attr!(
rustc_must_implement_one_of, Normal, template!(List: "function1, function2, ..."), ErrorFollowing,
"the `#[rustc_must_implement_one_of]` attribute is used to change minimal complete \
definition of a trait, it's currently in experimental form and should be changed before \
being exposed outside of the std"
),
// ========================================================================== // ==========================================================================
// Internal attributes, Testing: // Internal attributes, Testing:
// ========================================================================== // ==========================================================================
rustc_attr!(TEST, rustc_outlives, Normal, template!(Word)), rustc_attr!(TEST, rustc_outlives, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_capture_analysis, Normal, template!(Word)), rustc_attr!(TEST, rustc_capture_analysis, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_insignificant_dtor, Normal, template!(Word)), rustc_attr!(TEST, rustc_insignificant_dtor, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_variance, Normal, template!(Word)), rustc_attr!(TEST, rustc_strict_coherence, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_layout, Normal, template!(List: "field1, field2, ...")), rustc_attr!(TEST, rustc_variance, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_regions, Normal, template!(Word)), rustc_attr!(TEST, rustc_layout, Normal, template!(List: "field1, field2, ..."), WarnFollowing),
rustc_attr!(TEST, rustc_regions, Normal, template!(Word), WarnFollowing),
rustc_attr!( rustc_attr!(
TEST, rustc_error, AssumedUsed, TEST, rustc_error, Normal,
template!(Word, List: "delay_span_bug_from_inside_query") template!(Word, List: "delay_span_bug_from_inside_query"), WarnFollowingWordOnly
), ),
rustc_attr!(TEST, rustc_dump_user_substs, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_dump_user_substs, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_evaluate_where_clauses, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_evaluate_where_clauses, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_if_this_changed, AssumedUsed, template!(Word, List: "DepNode")),
rustc_attr!(TEST, rustc_then_this_would_need, AssumedUsed, template!(List: "DepNode")),
rustc_attr!( rustc_attr!(
TEST, rustc_clean, AssumedUsed, TEST, rustc_if_this_changed, Normal, template!(Word, List: "DepNode"), DuplicatesOk
),
rustc_attr!(
TEST, rustc_then_this_would_need, Normal, template!(List: "DepNode"), DuplicatesOk
),
rustc_attr!(
TEST, rustc_clean, Normal,
template!(List: r#"cfg = "...", /*opt*/ label = "...", /*opt*/ except = "...""#), template!(List: r#"cfg = "...", /*opt*/ label = "...", /*opt*/ except = "...""#),
DuplicatesOk,
), ),
rustc_attr!( rustc_attr!(
TEST, rustc_partition_reused, AssumedUsed, TEST, rustc_partition_reused, Normal,
template!(List: r#"cfg = "...", module = "...""#), template!(List: r#"cfg = "...", module = "...""#), DuplicatesOk,
), ),
rustc_attr!( rustc_attr!(
TEST, rustc_partition_codegened, AssumedUsed, TEST, rustc_partition_codegened, Normal,
template!(List: r#"cfg = "...", module = "...""#), template!(List: r#"cfg = "...", module = "...""#), DuplicatesOk,
), ),
rustc_attr!( rustc_attr!(
TEST, rustc_expected_cgu_reuse, AssumedUsed, TEST, rustc_expected_cgu_reuse, Normal,
template!(List: r#"cfg = "...", module = "...", kind = "...""#), template!(List: r#"cfg = "...", module = "...", kind = "...""#), DuplicatesOk,
), ),
rustc_attr!(TEST, rustc_synthetic, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_symbol_name, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_symbol_name, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_polymorphize_error, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_polymorphize_error, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_def_path, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_def_path, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_mir, Normal, template!(List: "arg1, arg2, ..."), DuplicatesOk),
rustc_attr!(TEST, rustc_mir, AssumedUsed, template!(List: "arg1, arg2, ...")), rustc_attr!(TEST, rustc_dump_program_clauses, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_dump_program_clauses, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_dump_env_program_clauses, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_dump_env_program_clauses, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_object_lifetime_default, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_object_lifetime_default, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_dump_vtable, Normal, template!(Word), WarnFollowing),
rustc_attr!(TEST, rustc_dump_vtable, AssumedUsed, template!(Word)), rustc_attr!(TEST, rustc_dummy, Normal, template!(Word /* doesn't matter*/), DuplicatesOk),
rustc_attr!(TEST, rustc_dummy, Normal, template!(Word /* doesn't matter*/)),
gated!( gated!(
omit_gdb_pretty_printer_section, AssumedUsed, template!(Word), omit_gdb_pretty_printer_section, Normal, template!(Word), WarnFollowing,
"the `#[omit_gdb_pretty_printer_section]` attribute is just used for the Rust test suite", "the `#[omit_gdb_pretty_printer_section]` attribute is just used for the Rust test suite",
), ),
]; ];