} };
}
+macro_rules! rustc_attr {
+ (TEST, $gate:ident, $typ:expr, $tpl:expr $(,)?) => {
+ rustc_attr!(
+ $gate, $typ, $tpl,
+ concat!("the `#[", stringify!($gate), "]` attribute is just used for rustc unit tests \
+ and will never be stable",
+ ),
+ )
+ };
+ ($gate:ident, $typ:expr, $tpl:expr, $msg:expr $(,)?) => {
+ (sym::$gate, $typ, $tpl,
+ Gated(Stability::Unstable, sym::rustc_attrs, $msg, cfg_fn!(rustc_attrs)))
+ };
+}
+
pub type BuiltinAttribute = (Symbol, AttributeType, AttributeTemplate, AttributeGate);
/// Attributes that have a special meaning to rustc or rustdoc
attribute is an experimental \
feature",
cfg_fn!(needs_panic_runtime))),
- (sym::rustc_outlives, Normal, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_outlives]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_variance, Normal, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_variance]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_layout, Normal, template!(List: "field1, field2, ..."),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_layout]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_layout_scalar_valid_range_start, Whitelisted, template!(List: "value"),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_layout_scalar_valid_range_start]` attribute \
- is just used to enable niche optimizations in libcore \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_layout_scalar_valid_range_end, Whitelisted, template!(List: "value"),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_layout_scalar_valid_range_end]` attribute \
- is just used to enable niche optimizations in libcore \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_nonnull_optimization_guaranteed, Whitelisted, template!(Word),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_nonnull_optimization_guaranteed]` attribute \
- is just used to enable niche optimizations in libcore \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_regions, Normal, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_regions]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_error, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_error]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_dump_user_substs, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "this attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_if_this_changed, Whitelisted, template!(Word, List: "DepNode"),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_if_this_changed]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_then_this_would_need, Whitelisted, template!(List: "DepNode"),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_if_this_changed]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_dirty, Whitelisted, template!(List: r#"cfg = "...", /*opt*/ label = "...",
- /*opt*/ except = "...""#),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_dirty]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_clean, Whitelisted, template!(List: r#"cfg = "...", /*opt*/ label = "...",
- /*opt*/ except = "...""#),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_clean]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (
- sym::rustc_partition_reused,
- Whitelisted,
+
+ rustc_attr!(TEST, rustc_outlives, Normal, template!(Word)),
+ rustc_attr!(TEST, rustc_variance, Normal, template!(Word)),
+ rustc_attr!(TEST, rustc_layout, Normal, template!(List: "field1, field2, ...")),
+ rustc_attr!(
+ rustc_layout_scalar_valid_range_start, Whitelisted, template!(List: "value"),
+ "the `#[rustc_layout_scalar_valid_range_start]` attribute is just used to enable \
+ niche optimizations in libcore and will never be stable",
+ ),
+ rustc_attr!(
+ rustc_layout_scalar_valid_range_end, Whitelisted, template!(List: "value"),
+ "the `#[rustc_layout_scalar_valid_range_end]` attribute is just used to enable \
+ niche optimizations in libcore and will never be stable",
+ ),
+ rustc_attr!(
+ rustc_nonnull_optimization_guaranteed, Whitelisted, template!(Word),
+ "the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable \
+ niche optimizations in libcore and will never be stable",
+ ),
+ rustc_attr!(TEST, rustc_regions, Normal, template!(Word)),
+ rustc_attr!(TEST, rustc_error, Whitelisted, template!(Word)),
+ rustc_attr!(TEST, rustc_dump_user_substs, Whitelisted, template!(Word)),
+ rustc_attr!(TEST, rustc_if_this_changed, Whitelisted, template!(Word, List: "DepNode")),
+ rustc_attr!(TEST, rustc_then_this_would_need, Whitelisted, template!(List: "DepNode")),
+ rustc_attr!(
+ TEST, rustc_dirty, Whitelisted,
+ template!(List: r#"cfg = "...", /*opt*/ label = "...", /*opt*/ except = "...""#),
+ ),
+ rustc_attr!(
+ TEST, rustc_clean, Whitelisted,
+ template!(List: r#"cfg = "...", /*opt*/ label = "...", /*opt*/ except = "...""#),
+ ),
+ rustc_attr!(
+ TEST, rustc_partition_reused, Whitelisted,
template!(List: r#"cfg = "...", module = "...""#),
- Gated(
- Stability::Unstable,
- sym::rustc_attrs,
- "this attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs)
- )
),
- (
- sym::rustc_partition_codegened,
- Whitelisted,
+ rustc_attr!(
+ TEST, rustc_partition_codegened, Whitelisted,
template!(List: r#"cfg = "...", module = "...""#),
- Gated(
- Stability::Unstable,
- sym::rustc_attrs,
- "this attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs),
- )
),
- (sym::rustc_expected_cgu_reuse, Whitelisted, template!(List: r#"cfg = "...", module = "...",
- kind = "...""#),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "this attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_synthetic, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "this attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_symbol_name, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "internal rustc attributes will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_def_path, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "internal rustc attributes will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_mir, Whitelisted, template!(List: "arg1, arg2, ..."), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_mir]` attribute \
- is just used for rustc unit tests \
- and will never be stable",
- cfg_fn!(rustc_attrs))),
- (
- sym::rustc_inherit_overflow_checks,
- Whitelisted,
- template!(Word),
- Gated(
- Stability::Unstable,
- sym::rustc_attrs,
- "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",
- cfg_fn!(rustc_attrs),
- )
+ rustc_attr!(
+ TEST, rustc_expected_cgu_reuse, Whitelisted,
+ template!(List: r#"cfg = "...", module = "...", kind = "...""#),
+ ),
+ rustc_attr!(TEST, rustc_synthetic, Whitelisted, template!(Word)),
+ rustc_attr!(
+ rustc_symbol_name, Whitelisted, template!(Word),
+ "internal rustc attributes will never be stable",
+ ),
+ rustc_attr!(
+ rustc_def_path, Whitelisted, template!(Word),
+ "internal rustc attributes will never be stable",
+ ),
+ 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",
),
-
- (sym::rustc_dump_program_clauses, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_dump_program_clauses]` \
- attribute is just used for rustc unit \
- tests and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_dump_env_program_clauses, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_dump_env_program_clauses]` \
- attribute is just used for rustc unit \
- tests and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_object_lifetime_default, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_object_lifetime_default]` \
- attribute is just used for rustc unit \
- tests and will never be stable",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_test_marker, Normal, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "the `#[rustc_test_marker]` attribute \
- is used internally to track tests",
- cfg_fn!(rustc_attrs))),
- (sym::rustc_macro_transparency, Whitelisted, template!(NameValueStr:
- "transparent|semitransparent|opaque"),
- Gated(Stability::Unstable,
- sym::rustc_attrs,
- "used internally for testing macro hygiene",
- cfg_fn!(rustc_attrs))),
(sym::compiler_builtins, Whitelisted, template!(Word), Gated(Stability::Unstable,
sym::compiler_builtins,
"the `#[compiler_builtins]` attribute is used to \
/*opt*/ attributes(name1, name2, ...)"),
Ungated),
- (sym::rustc_allocator, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "internal implementation detail",
- cfg_fn!(rustc_attrs))),
-
- (sym::rustc_allocator_nounwind, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "internal implementation detail",
- cfg_fn!(rustc_attrs))),
-
- (sym::rustc_builtin_macro, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "internal implementation detail",
- cfg_fn!(rustc_attrs))),
-
- (sym::rustc_promotable, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "internal implementation detail",
- cfg_fn!(rustc_attrs))),
-
- (sym::rustc_allow_const_fn_ptr, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "internal implementation detail",
- cfg_fn!(rustc_attrs))),
-
- (sym::rustc_dummy, Normal, template!(Word /* doesn't matter*/), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "used by the test suite",
- cfg_fn!(rustc_attrs))),
+ 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
(
(sym::proc_macro_attribute, Normal, template!(Word), Ungated),
(sym::proc_macro, Normal, template!(Word), Ungated),
- (sym::rustc_proc_macro_decls, Normal, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "used internally by rustc",
- cfg_fn!(rustc_attrs))),
+ rustc_attr!(rustc_proc_macro_decls, Normal, template!(Word), "used internally by rustc"),
(sym::allow_fail, Normal, template!(Word), Gated(Stability::Unstable,
sym::allow_fail,
"allow_fail attribute is currently unstable",
cfg_fn!(allow_fail))),
- (sym::rustc_std_internal_symbol, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "this is an internal attribute that will \
- never be stable",
- cfg_fn!(rustc_attrs))),
-
+ 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
- (sym::rustc_conversion_suggestion, Whitelisted, template!(Word), Gated(Stability::Unstable,
- sym::rustc_attrs,
- "this is an internal attribute that will \
- never be stable",
- cfg_fn!(rustc_attrs))),
-
- (
- sym::rustc_args_required_const,
- Whitelisted,
- template!(List: "N"),
- Gated(Stability::Unstable, sym::rustc_attrs, "never will be stable",
- cfg_fn!(rustc_attrs))
+ 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
(sym::panic_handler, Normal, template!(Word), Ungated),
projects / rust.git / commitdiff