Add builtin attributes for use in nameres
This commit is contained in:
Jonas Schievink
parent
15a644d606
commit
253678ead2
428
crates/hir_def/src/builtin_attr.rs
Normal file
428
crates/hir_def/src/builtin_attr.rs
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@ -0,0 +1,428 @@
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//! Builtin attributes resolved by nameres.
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//!
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//! The actual definitions were copied from rustc's `compiler/rustc_feature/src/builtin_attrs.rs`.
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//!
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//! The macros were adjusted to only expand to the attribute name, since that is all we need to do
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//! name resolution, and `BUILTIN_ATTRIBUTES` is almost entirely unchanged from the original, to
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//! ease updating.
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/// Ignored attribute namespaces used by tools.
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pub const TOOL_MODULES: &[&str] = &["rustfmt", "clippy"];
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type BuiltinAttribute = &'static str;
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macro_rules! ungated {
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($attr:ident, $typ:expr, $tpl:expr $(,)?) => {
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stringify!($attr)
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};
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}
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macro_rules! gated {
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($attr:ident $($rest:tt)*) => {
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stringify!($attr)
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};
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}
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macro_rules! rustc_attr {
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(TEST, $attr:ident $($rest:tt)*) => {
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stringify!($attr)
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};
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($attr:ident $($rest:tt)*) => {
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stringify!($attr)
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};
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}
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/// Attributes that have a special meaning to rustc or rustdoc.
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#[rustfmt::skip]
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pub const BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[
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// ==========================================================================
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// Stable attributes:
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// ==========================================================================
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// Conditional 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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// 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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// 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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// FIXME(#14407)
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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, AssumedUsed, template!(Word, NameValueStr: "reason")),
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// FIXME(#14407)
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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, AssumedUsed,
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template!(List: r#"name = "...", /*opt*/ kind = "dylib|static|...", /*opt*/ wasm_import_module = "...""#),
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),
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ungated!(link_name, AssumedUsed, template!(NameValueStr: "name")),
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ungated!(no_link, Normal, template!(Word)),
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ungated!(repr, Normal, template!(List: "C")),
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ungated!(export_name, AssumedUsed, template!(NameValueStr: "name")),
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ungated!(link_section, AssumedUsed, template!(NameValueStr: "name")),
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ungated!(no_mangle, AssumedUsed, template!(Word)),
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ungated!(used, AssumedUsed, 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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gated!(
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const_eval_limit, CrateLevel, template!(NameValueStr: "N"), const_eval_limit,
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experimental!(const_eval_limit)
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),
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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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ungated!(non_exhaustive, AssumedUsed, template!(Word)),
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// Runtime
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ungated!(windows_subsystem, AssumedUsed, 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, AssumedUsed, template!(Word, List: "always|never")),
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ungated!(cold, AssumedUsed, template!(Word)),
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ungated!(no_builtins, AssumedUsed, template!(Word)),
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ungated!(target_feature, AssumedUsed, template!(List: r#"enable = "name""#)),
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ungated!(track_caller, AssumedUsed, template!(Word)),
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gated!(
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no_sanitize, AssumedUsed,
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template!(List: "address, memory, thread"),
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experimental!(no_sanitize)
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),
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// FIXME: #14408 assume docs are used since rustdoc looks at them.
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ungated!(doc, AssumedUsed, 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, AssumedUsed, 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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gated!(
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link_ordinal, AssumedUsed, template!(List: "ordinal"), raw_dylib,
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experimental!(link_ordinal)
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),
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// Plugins:
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// XXX Modified for use in rust-analyzer
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gated!(plugin_registrar),
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gated!(plugin),
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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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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 #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, AssumedUsed, 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, AssumedUsed, template!(List: "size|speed"), optimize_attribute,
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experimental!(optimize),
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),
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// RFC 2867
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gated!(instruction_set, AssumedUsed, template!(List: "set"), isa_attribute, experimental!(instruction_set)),
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gated!(ffi_returns_twice, AssumedUsed, template!(Word), experimental!(ffi_returns_twice)),
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gated!(ffi_pure, AssumedUsed, template!(Word), experimental!(ffi_pure)),
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gated!(ffi_const, AssumedUsed, template!(Word), experimental!(ffi_const)),
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gated!(
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register_attr, CrateLevel, template!(List: "attr1, attr2, ..."),
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experimental!(register_attr),
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),
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gated!(
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register_tool, CrateLevel, template!(List: "tool1, tool2, ..."),
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experimental!(register_tool),
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),
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gated!(cmse_nonsecure_entry, AssumedUsed, template!(Word), experimental!(cmse_nonsecure_entry)),
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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) -- 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, AssumedUsed,
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template!(List: r#"since = "version", reason = "...""#)
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),
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// FIXME(#14407)
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ungated!(stable, AssumedUsed, template!(List: r#"feature = "name", since = "version""#)),
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// FIXME(#14407)
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ungated!(
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unstable, AssumedUsed,
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template!(List: r#"feature = "name", reason = "...", issue = "N""#),
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),
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// FIXME(#14407)
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ungated!(rustc_const_unstable, AssumedUsed, template!(List: r#"feature = "name""#)),
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// FIXME(#14407)
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ungated!(rustc_const_stable, AssumedUsed, template!(List: r#"feature = "name""#)),
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gated!(
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allow_internal_unstable, AssumedUsed, template!(Word, List: "feat1, feat2, ..."),
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"allow_internal_unstable side-steps feature gating and stability checks",
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),
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gated!(
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rustc_allow_const_fn_unstable, AssumedUsed, template!(Word, List: "feat1, feat2, ..."),
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"rustc_allow_const_fn_unstable side-steps feature gating and stability checks"
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),
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gated!(
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allow_internal_unsafe, Normal, template!(Word),
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"allow_internal_unsafe side-steps the unsafe_code lint",
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),
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// ==========================================================================
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// Internal attributes: Type system related:
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// ==========================================================================
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gated!(fundamental, AssumedUsed, template!(Word), experimental!(fundamental)),
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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, AssumedUsed, template!(Word), IMPL_DETAIL),
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rustc_attr!(rustc_allocator_nounwind, AssumedUsed, 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, AssumedUsed, 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, AssumedUsed, template!(Word), experimental!(panic_runtime)),
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gated!(needs_panic_runtime, AssumedUsed, template!(Word), experimental!(needs_panic_runtime)),
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gated!(
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unwind, AssumedUsed, 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, AssumedUsed, 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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profiler_runtime, AssumedUsed, 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, AssumedUsed, 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, AssumedUsed, template!(Word), INTERNAL_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, AssumedUsed, template!(Word), IMPL_DETAIL),
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rustc_attr!(rustc_proc_macro_decls, Normal, template!(Word), INTERNAL_UNSTABLE),
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rustc_attr!(
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rustc_macro_transparency, AssumedUsed,
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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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rustc_attr!(
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rustc_on_unimplemented, AssumedUsed,
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template!(
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List: r#"/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...""#,
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NameValueStr: "message"
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),
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INTERNAL_UNSTABLE
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),
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// Enumerates "identity-like" conversion methods to suggest on type mismatch.
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rustc_attr!(rustc_conversion_suggestion, AssumedUsed, template!(Word), INTERNAL_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, AssumedUsed, template!(Word), IMPL_DETAIL),
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rustc_attr!(rustc_args_required_const, AssumedUsed, template!(List: "N"), INTERNAL_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, AssumedUsed, template!(List: "value"),
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"the `#[rustc_layout_scalar_valid_range_start]` 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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rustc_attr!(
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rustc_layout_scalar_valid_range_end, AssumedUsed, template!(List: "value"),
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"the `#[rustc_layout_scalar_valid_range_end]` 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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rustc_attr!(
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rustc_nonnull_optimization_guaranteed, AssumedUsed, template!(Word),
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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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gated!(rustc_diagnostic_item), // XXX modified in rust-analyzer
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gated!(
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// Used in resolve:
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prelude_import, AssumedUsed, 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",
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
rustc_inherit_overflow_checks, AssumedUsed, 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!(rustc_reservation_impl, Normal, template!(NameValueStr: "reservation message"),
|
||||||
|
"the `#[rustc_reservation_impl]` attribute is internally used \
|
||||||
|
for reserving for `for<T> From<!> for T` impl"
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
rustc_test_marker, Normal, template!(Word),
|
||||||
|
"the `#[rustc_test_marker]` attribute is used internally to track tests",
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
rustc_unsafe_specialization_marker, Normal, template!(Word),
|
||||||
|
"the `#[rustc_unsafe_specialization_marker]` attribute is used to check specializations"
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
rustc_specialization_trait, Normal, template!(Word),
|
||||||
|
"the `#[rustc_specialization_trait]` attribute is used to check specializations"
|
||||||
|
),
|
||||||
|
|
||||||
|
// ==========================================================================
|
||||||
|
// Internal attributes, Testing:
|
||||||
|
// ==========================================================================
|
||||||
|
|
||||||
|
rustc_attr!(TEST, rustc_outlives, Normal, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_capture_analysis, Normal, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_variance, Normal, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_layout, Normal, template!(List: "field1, field2, ...")),
|
||||||
|
rustc_attr!(TEST, rustc_regions, Normal, template!(Word)),
|
||||||
|
rustc_attr!(
|
||||||
|
TEST, rustc_error, AssumedUsed,
|
||||||
|
template!(Word, List: "delay_span_bug_from_inside_query")
|
||||||
|
),
|
||||||
|
rustc_attr!(TEST, rustc_dump_user_substs, AssumedUsed, template!(Word)),
|
||||||
|
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!(
|
||||||
|
TEST, rustc_dirty, AssumedUsed,
|
||||||
|
template!(List: r#"cfg = "...", /*opt*/ label = "...", /*opt*/ except = "...""#),
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
TEST, rustc_clean, AssumedUsed,
|
||||||
|
template!(List: r#"cfg = "...", /*opt*/ label = "...", /*opt*/ except = "...""#),
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
TEST, rustc_partition_reused, AssumedUsed,
|
||||||
|
template!(List: r#"cfg = "...", module = "...""#),
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
TEST, rustc_partition_codegened, AssumedUsed,
|
||||||
|
template!(List: r#"cfg = "...", module = "...""#),
|
||||||
|
),
|
||||||
|
rustc_attr!(
|
||||||
|
TEST, rustc_expected_cgu_reuse, AssumedUsed,
|
||||||
|
template!(List: r#"cfg = "...", module = "...", kind = "...""#),
|
||||||
|
),
|
||||||
|
rustc_attr!(TEST, rustc_synthetic, AssumedUsed, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_symbol_name, AssumedUsed, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_polymorphize_error, AssumedUsed, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_def_path, AssumedUsed, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_mir, AssumedUsed, template!(List: "arg1, arg2, ...")),
|
||||||
|
rustc_attr!(TEST, rustc_dump_program_clauses, AssumedUsed, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_dump_env_program_clauses, AssumedUsed, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_object_lifetime_default, AssumedUsed, template!(Word)),
|
||||||
|
rustc_attr!(TEST, rustc_dummy, Normal, template!(Word /* doesn't matter*/)),
|
||||||
|
gated!(
|
||||||
|
omit_gdb_pretty_printer_section, AssumedUsed, template!(Word),
|
||||||
|
"the `#[omit_gdb_pretty_printer_section]` attribute is just used for the Rust test suite",
|
||||||
|
),
|
||||||
|
];
|
||||||
@ -18,6 +18,7 @@ macro_rules! eprintln {
|
|||||||
pub mod path;
|
pub mod path;
|
||||||
pub mod type_ref;
|
pub mod type_ref;
|
||||||
pub mod builtin_type;
|
pub mod builtin_type;
|
||||||
|
pub mod builtin_attr;
|
||||||
pub mod diagnostics;
|
pub mod diagnostics;
|
||||||
pub mod per_ns;
|
pub mod per_ns;
|
||||||
pub mod item_scope;
|
pub mod item_scope;
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user