pub const KNOWN_ATTRIBUTES: &'static [(&'static str, AttributeType, AttributeGate)] = &[
// Normal attributes
("warn", Normal, Ungated),
("allow", Normal, Ungated),
("forbid", Normal, Ungated),
("deny", Normal, Ungated),
("macro_reexport", Normal, Ungated),
("macro_use", Normal, Ungated),
("macro_export", Normal, Ungated),
("plugin_registrar", Normal, Ungated),
("cfg", Normal, Ungated),
("cfg_attr", Normal, Ungated),
("main", Normal, Ungated),
("start", Normal, Ungated),
("test", Normal, Ungated),
("bench", Normal, Ungated),
("simd", Normal, Ungated),
("repr", Normal, Ungated),
("path", Normal, Ungated),
("abi", Normal, Ungated),
("automatically_derived", Normal, Ungated),
("no_mangle", Normal, Ungated),
("no_link", Normal, Ungated),
("derive", Normal, Ungated),
("should_panic", Normal, Ungated),
("ignore", Normal, Ungated),
("no_implicit_prelude", Normal, Ungated),
("reexport_test_harness_main", Normal, Ungated),
("link_args", Normal, Ungated),
("macro_escape", Normal, Ungated),
// Not used any more, but we can't feature gate it
("no_stack_check", Normal, Ungated),
("plugin", CrateLevel, Gated("plugin",
"compiler plugins are experimental \
and possibly buggy")),
("no_std", CrateLevel, Ungated),
("no_core", CrateLevel, Gated("no_core",
"no_core is experimental")),
("lang", Normal, Gated("lang_items",
"language items are subject to change")),
("linkage", Whitelisted, Gated("linkage",
"the `linkage` attribute is experimental \
and not portable across platforms")),
("thread_local", Whitelisted, Gated("thread_local",
"`#[thread_local]` is an experimental feature, and does \
not currently handle destructors. There is no \
corresponding `#[task_local]` mapping to the task \
model")),
("rustc_on_unimplemented", Normal, Gated("on_unimplemented",
"the `#[rustc_on_unimplemented]` attribute \
is an experimental feature")),
("allocator", Whitelisted, Gated("allocator",
"the `#[allocator]` attribute is an experimental feature")),
("needs_allocator", Normal, Gated("needs_allocator",
"the `#[needs_allocator]` \
attribute is an experimental \
feature")),
("rustc_variance", Normal, Gated("rustc_attrs",
"the `#[rustc_variance]` attribute \
is just used for rustc unit tests \
and will never be stable")),
("rustc_error", Whitelisted, Gated("rustc_attrs",
"the `#[rustc_error]` attribute \
is just used for rustc unit tests \
and will never be stable")),
("rustc_move_fragments", Normal, Gated("rustc_attrs",
"the `#[rustc_move_fragments]` attribute \
is just used for rustc unit tests \
and will never be stable")),
("rustc_mir", Normal, Gated("rustc_attrs",
"the `#[rustc_mir]` attribute \
is just used for rustc unit tests \
and will never be stable")),
("allow_internal_unstable", Normal, Gated("allow_internal_unstable",
EXPLAIN_ALLOW_INTERNAL_UNSTABLE)),
("fundamental", Whitelisted, Gated("fundamental",
"the `#[fundamental]` attribute \
is an experimental feature")),
("linked_from", Normal, Gated("linked_from",
"the `#[linked_from]` attribute \
is an experimental feature")),
// FIXME: #14408 whitelist docs since rustdoc looks at them
("doc", Whitelisted, Ungated),
// FIXME: #14406 these are processed in trans, which happens after the
// lint pass
("cold", Whitelisted, Ungated),
("export_name", Whitelisted, Ungated),
("inline", Whitelisted, Ungated),
("link", Whitelisted, Ungated),
("link_name", Whitelisted, Ungated),
("link_section", Whitelisted, Ungated),
("no_builtins", Whitelisted, Ungated),
("no_mangle", Whitelisted, Ungated),
("no_debug", Whitelisted, Gated("no_debug",
"the `#[no_debug]` attribute \
is an experimental feature")),
("omit_gdb_pretty_printer_section", Whitelisted, Gated("omit_gdb_pretty_printer_section",
"the `#[omit_gdb_pretty_printer_section]` \
attribute is just used for the Rust test \
suite")),
("unsafe_no_drop_flag", Whitelisted, Gated("unsafe_no_drop_flag",
"unsafe_no_drop_flag has unstable semantics \
and may be removed in the future")),
("unsafe_destructor_blind_to_params",
Normal,
Gated("dropck_parametricity",
"unsafe_destructor_blind_to_params has unstable semantics \
and may be removed in the future")),
("unwind", Whitelisted, Gated("unwind_attributes", "#[unwind] is experimental")),
// used in resolve
("prelude_import", Whitelisted, Gated("prelude_import",
"`#[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
("rustc_deprecated", Whitelisted, Ungated),
("must_use", Whitelisted, Ungated),
("stable", Whitelisted, Ungated),
("unstable", Whitelisted, Ungated),
("rustc_paren_sugar", Normal, Gated("unboxed_closures",
"unboxed_closures are still evolving")),
("rustc_reflect_like", Whitelisted, Gated("reflect",
"defining reflective traits is still evolving")),
// Crate level attributes
("crate_name", CrateLevel, Ungated),
("crate_type", CrateLevel, Ungated),
("crate_id", CrateLevel, Ungated),
("feature", CrateLevel, Ungated),
("no_start", CrateLevel, Ungated),
("no_main", CrateLevel, Ungated),
("no_builtins", CrateLevel, Ungated),
("recursion_limit", CrateLevel, Ungated),
]