mv compiler to compiler/
This commit is contained in:
mark
Vadim Petrochenkov
parent
db534b3ac2
commit
9e5f7d5631
1686 changed files with 941 additions and 1051 deletions
602
compiler/rustc_feature/src/builtin_attrs.rs
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602
compiler/rustc_feature/src/builtin_attrs.rs
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@ -0,0 +1,602 @@
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//! Built-in attributes and `cfg` flag gating.
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use AttributeGate::*;
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use AttributeType::*;
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use crate::{Features, Stability};
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use lazy_static::lazy_static;
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use rustc_data_structures::fx::FxHashMap;
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use rustc_span::symbol::{sym, Symbol};
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type GateFn = fn(&Features) -> bool;
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macro_rules! cfg_fn {
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($field: ident) => {
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(|features| features.$field) as GateFn
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};
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}
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pub type GatedCfg = (Symbol, Symbol, GateFn);
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/// `cfg(...)`'s that are feature gated.
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const GATED_CFGS: &[GatedCfg] = &[
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// (name in cfg, feature, function to check if the feature is enabled)
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(sym::target_thread_local, sym::cfg_target_thread_local, cfg_fn!(cfg_target_thread_local)),
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(sym::target_has_atomic, sym::cfg_target_has_atomic, cfg_fn!(cfg_target_has_atomic)),
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(sym::target_has_atomic_load_store, sym::cfg_target_has_atomic, cfg_fn!(cfg_target_has_atomic)),
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(sym::sanitize, sym::cfg_sanitize, cfg_fn!(cfg_sanitize)),
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(sym::version, sym::cfg_version, cfg_fn!(cfg_version)),
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];
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/// Find a gated cfg determined by the `pred`icate which is given the cfg's name.
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pub fn find_gated_cfg(pred: impl Fn(Symbol) -> bool) -> Option<&'static GatedCfg> {
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GATED_CFGS.iter().find(|(cfg_sym, ..)| pred(*cfg_sym))
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}
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// If you change this, please modify `src/doc/unstable-book` as well. You must
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// move that documentation into the relevant place in the other docs, and
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// remove the chapter on the flag.
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#[derive(Copy, Clone, PartialEq, Debug)]
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pub enum AttributeType {
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/// Normal, builtin attribute that is consumed
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/// by the compiler before the unused_attribute check
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Normal,
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/// Builtin attribute that may not be consumed by the compiler
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/// before the unused_attribute check. These attributes
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/// will be ignored by the unused_attribute lint
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AssumedUsed,
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/// Builtin attribute that is only allowed at the crate level
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CrateLevel,
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}
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#[derive(Clone, Copy)]
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pub enum AttributeGate {
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/// Is gated by a given feature gate, reason
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/// and function to check if enabled
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Gated(Stability, Symbol, &'static str, fn(&Features) -> bool),
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/// Ungated attribute, can be used on all release channels
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Ungated,
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}
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// fn() is not Debug
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impl std::fmt::Debug for AttributeGate {
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fn fmt(&self, fmt: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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match *self {
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Self::Gated(ref stab, name, expl, _) => {
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write!(fmt, "Gated({:?}, {}, {})", stab, name, expl)
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}
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Self::Ungated => write!(fmt, "Ungated"),
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}
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}
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}
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impl AttributeGate {
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fn is_deprecated(&self) -> bool {
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match *self {
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Self::Gated(Stability::Deprecated(_, _), ..) => true,
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_ => false,
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}
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}
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}
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/// A template that the attribute input must match.
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/// Only top-level shape (`#[attr]` vs `#[attr(...)]` vs `#[attr = ...]`) is considered now.
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#[derive(Clone, Copy, Default)]
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pub struct AttributeTemplate {
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pub word: bool,
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pub list: Option<&'static str>,
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pub name_value_str: Option<&'static str>,
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}
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/// A convenience macro for constructing attribute templates.
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/// E.g., `template!(Word, List: "description")` means that the attribute
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/// supports forms `#[attr]` and `#[attr(description)]`.
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macro_rules! template {
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(Word) => { template!(@ true, None, None) };
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(List: $descr: expr) => { template!(@ false, Some($descr), None) };
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(NameValueStr: $descr: expr) => { template!(@ false, None, Some($descr)) };
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(Word, List: $descr: expr) => { template!(@ true, Some($descr), None) };
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(Word, NameValueStr: $descr: expr) => { template!(@ true, None, Some($descr)) };
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(List: $descr1: expr, NameValueStr: $descr2: expr) => {
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template!(@ false, Some($descr1), Some($descr2))
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};
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(Word, List: $descr1: expr, NameValueStr: $descr2: expr) => {
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template!(@ true, Some($descr1), Some($descr2))
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};
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(@ $word: expr, $list: expr, $name_value_str: expr) => { AttributeTemplate {
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word: $word, list: $list, name_value_str: $name_value_str
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} };
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}
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macro_rules! ungated {
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($attr:ident, $typ:expr, $tpl:expr $(,)?) => {
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(sym::$attr, $typ, $tpl, Ungated)
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};
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}
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macro_rules! gated {
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($attr:ident, $typ:expr, $tpl:expr, $gate:ident, $msg:expr $(,)?) => {
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(sym::$attr, $typ, $tpl, Gated(Stability::Unstable, sym::$gate, $msg, cfg_fn!($gate)))
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};
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($attr:ident, $typ:expr, $tpl:expr, $msg:expr $(,)?) => {
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(sym::$attr, $typ, $tpl, Gated(Stability::Unstable, sym::$attr, $msg, cfg_fn!($attr)))
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};
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}
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macro_rules! rustc_attr {
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(TEST, $attr:ident, $typ:expr, $tpl:expr $(,)?) => {
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rustc_attr!(
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$attr,
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$typ,
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$tpl,
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concat!(
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"the `#[",
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stringify!($attr),
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"]` attribute is just used for rustc unit tests \
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and will never be stable",
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),
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)
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};
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($attr:ident, $typ:expr, $tpl:expr, $msg:expr $(,)?) => {
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(
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sym::$attr,
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$typ,
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$tpl,
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Gated(Stability::Unstable, sym::rustc_attrs, $msg, cfg_fn!(rustc_attrs)),
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)
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};
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}
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macro_rules! experimental {
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($attr:ident) => {
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concat!("the `#[", stringify!($attr), "]` attribute is an experimental feature")
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};
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}
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const IMPL_DETAIL: &str = "internal implementation detail";
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const INTERNAL_UNSTABLE: &str = "this is an internal attribute that will never be stable";
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pub type BuiltinAttribute = (Symbol, AttributeType, AttributeTemplate, AttributeGate);
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/// Attributes that have a special meaning to rustc or rustdoc.
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#[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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(
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sym::plugin_registrar, Normal, template!(Word),
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Gated(
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Stability::Deprecated(
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"https://github.com/rust-lang/rust/pull/64675",
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Some("may be removed in a future compiler version"),
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),
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sym::plugin_registrar,
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"compiler plugins are deprecated",
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cfg_fn!(plugin_registrar)
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)
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),
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(
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sym::plugin, CrateLevel, template!(List: "name"),
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Gated(
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Stability::Deprecated(
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"https://github.com/rust-lang/rust/pull/64675",
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Some("may be removed in a future compiler version"),
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),
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sym::plugin,
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"compiler plugins are deprecated",
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cfg_fn!(plugin)
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)
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),
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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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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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// ==========================================================================
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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, ..."),
|
||||
"allow_internal_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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// ==========================================================================
|
||||
// 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,
|
||||
experimental!(needs_allocator),
|
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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),
|
||||
"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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gated!(
|
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profiler_runtime, AssumedUsed, template!(Word),
|
||||
"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",
|
||||
),
|
||||
|
||||
// ==========================================================================
|
||||
// Internal attributes, Linkage:
|
||||
// ==========================================================================
|
||||
|
||||
gated!(
|
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linkage, AssumedUsed, template!(NameValueStr: "external|internal|..."),
|
||||
"the `linkage` attribute is experimental and not portable across platforms",
|
||||
),
|
||||
rustc_attr!(rustc_std_internal_symbol, AssumedUsed, template!(Word), INTERNAL_UNSTABLE),
|
||||
|
||||
// ==========================================================================
|
||||
// Internal attributes, Macro related:
|
||||
// ==========================================================================
|
||||
|
||||
rustc_attr!(rustc_builtin_macro, AssumedUsed, template!(Word), IMPL_DETAIL),
|
||||
rustc_attr!(rustc_proc_macro_decls, Normal, template!(Word), INTERNAL_UNSTABLE),
|
||||
rustc_attr!(
|
||||
rustc_macro_transparency, AssumedUsed,
|
||||
template!(NameValueStr: "transparent|semitransparent|opaque"),
|
||||
"used internally for testing macro hygiene",
|
||||
),
|
||||
|
||||
// ==========================================================================
|
||||
// Internal attributes, Diagnostics related:
|
||||
// ==========================================================================
|
||||
|
||||
rustc_attr!(
|
||||
rustc_on_unimplemented, AssumedUsed,
|
||||
template!(
|
||||
List: r#"/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...""#,
|
||||
NameValueStr: "message"
|
||||
),
|
||||
INTERNAL_UNSTABLE
|
||||
),
|
||||
// Enumerates "identity-like" conversion methods to suggest on type mismatch.
|
||||
rustc_attr!(rustc_conversion_suggestion, AssumedUsed, template!(Word), INTERNAL_UNSTABLE),
|
||||
|
||||
// ==========================================================================
|
||||
// Internal attributes, Const related:
|
||||
// ==========================================================================
|
||||
|
||||
rustc_attr!(rustc_promotable, AssumedUsed, template!(Word), IMPL_DETAIL),
|
||||
rustc_attr!(rustc_allow_const_fn_ptr, AssumedUsed, template!(Word), IMPL_DETAIL),
|
||||
rustc_attr!(rustc_args_required_const, AssumedUsed, template!(List: "N"), INTERNAL_UNSTABLE),
|
||||
|
||||
// ==========================================================================
|
||||
// Internal attributes, Layout related:
|
||||
// ==========================================================================
|
||||
|
||||
rustc_attr!(
|
||||
rustc_layout_scalar_valid_range_start, AssumedUsed, 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, AssumedUsed, 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, AssumedUsed, template!(Word),
|
||||
"the `#[rustc_nonnull_optimization_guaranteed]` attribute is just used to enable \
|
||||
niche optimizations in libcore and will never be stable",
|
||||
),
|
||||
|
||||
// ==========================================================================
|
||||
// Internal attributes, Misc:
|
||||
// ==========================================================================
|
||||
gated!(
|
||||
lang, Normal, template!(NameValueStr: "name"), lang_items,
|
||||
"language items are subject to change",
|
||||
),
|
||||
(
|
||||
sym::rustc_diagnostic_item,
|
||||
Normal,
|
||||
template!(NameValueStr: "name"),
|
||||
Gated(
|
||||
Stability::Unstable,
|
||||
sym::rustc_attrs,
|
||||
"diagnostic items compiler internal support for linting",
|
||||
cfg_fn!(rustc_attrs),
|
||||
),
|
||||
),
|
||||
gated!(
|
||||
// Used in resolve:
|
||||
prelude_import, AssumedUsed, template!(Word),
|
||||
"`#[prelude_import]` is for use by rustc only",
|
||||
),
|
||||
gated!(
|
||||
rustc_paren_sugar, Normal, template!(Word), unboxed_closures,
|
||||
"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_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",
|
||||
),
|
||||
];
|
||||
|
||||
pub fn deprecated_attributes() -> Vec<&'static BuiltinAttribute> {
|
||||
BUILTIN_ATTRIBUTES.iter().filter(|(.., gate)| gate.is_deprecated()).collect()
|
||||
}
|
||||
|
||||
pub fn is_builtin_attr_name(name: Symbol) -> bool {
|
||||
BUILTIN_ATTRIBUTE_MAP.get(&name).is_some()
|
||||
}
|
||||
|
||||
lazy_static! {
|
||||
pub static ref BUILTIN_ATTRIBUTE_MAP: FxHashMap<Symbol, &'static BuiltinAttribute> = {
|
||||
let mut map = FxHashMap::default();
|
||||
for attr in BUILTIN_ATTRIBUTES.iter() {
|
||||
if map.insert(attr.0, attr).is_some() {
|
||||
panic!("duplicate builtin attribute `{}`", attr.0);
|
||||
}
|
||||
}
|
||||
map
|
||||
};
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue