bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-def/src/lang_item.rs')
-rw-r--r--crates/hir-def/src/lang_item.rs591
1 files changed, 247 insertions, 344 deletions
diff --git a/crates/hir-def/src/lang_item.rs b/crates/hir-def/src/lang_item.rs
index 91a90f6d84..04acb8b712 100644
--- a/crates/hir-def/src/lang_item.rs
+++ b/crates/hir-def/src/lang_item.rs
@@ -2,100 +2,36 @@
//!
//! This attribute to tell the compiler about semi built-in std library
//! features, such as Fn family of traits.
-use hir_expand::name::Name;
use intern::{Symbol, sym};
-use rustc_hash::FxHashMap;
+use stdx::impl_from;
use crate::{
AdtId, AssocItemId, AttrDefId, Crate, EnumId, EnumVariantId, FunctionId, ImplId, ModuleDefId,
StaticId, StructId, TraitId, TypeAliasId, UnionId,
+ attrs::AttrFlags,
db::DefDatabase,
- expr_store::path::Path,
nameres::{assoc::TraitItems, crate_def_map, crate_local_def_map},
};
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
pub enum LangItemTarget {
EnumId(EnumId),
- Function(FunctionId),
- ImplDef(ImplId),
- Static(StaticId),
- Struct(StructId),
- Union(UnionId),
- TypeAlias(TypeAliasId),
- Trait(TraitId),
- EnumVariant(EnumVariantId),
+ FunctionId(FunctionId),
+ ImplId(ImplId),
+ StaticId(StaticId),
+ StructId(StructId),
+ UnionId(UnionId),
+ TypeAliasId(TypeAliasId),
+ TraitId(TraitId),
+ EnumVariantId(EnumVariantId),
}
-impl LangItemTarget {
- pub fn as_enum(self) -> Option<EnumId> {
- match self {
- LangItemTarget::EnumId(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_function(self) -> Option<FunctionId> {
- match self {
- LangItemTarget::Function(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_impl_def(self) -> Option<ImplId> {
- match self {
- LangItemTarget::ImplDef(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_static(self) -> Option<StaticId> {
- match self {
- LangItemTarget::Static(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_struct(self) -> Option<StructId> {
- match self {
- LangItemTarget::Struct(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_trait(self) -> Option<TraitId> {
- match self {
- LangItemTarget::Trait(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_enum_variant(self) -> Option<EnumVariantId> {
- match self {
- LangItemTarget::EnumVariant(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_type_alias(self) -> Option<TypeAliasId> {
- match self {
- LangItemTarget::TypeAlias(id) => Some(id),
- _ => None,
- }
- }
-
- pub fn as_adt(self) -> Option<AdtId> {
- match self {
- LangItemTarget::Union(it) => Some(it.into()),
- LangItemTarget::EnumId(it) => Some(it.into()),
- LangItemTarget::Struct(it) => Some(it.into()),
- _ => None,
- }
- }
-}
+impl_from!(
+ EnumId, FunctionId, ImplId, StaticId, StructId, UnionId, TypeAliasId, TraitId, EnumVariantId for LangItemTarget
+);
/// Salsa query. This will look for lang items in a specific crate.
-#[salsa_macros::tracked(returns(ref))]
+#[salsa_macros::tracked(returns(as_deref))]
pub fn crate_lang_items(db: &dyn DefDatabase, krate: Crate) -> Option<Box<LangItems>> {
let _p = tracing::info_span!("crate_lang_items_query").entered();
@@ -105,15 +41,11 @@ pub fn crate_lang_items(db: &dyn DefDatabase, krate: Crate) -> Option<Box<LangIt
for (_, module_data) in crate_def_map.modules() {
for impl_def in module_data.scope.impls() {
- lang_items.collect_lang_item(db, impl_def, LangItemTarget::ImplDef);
+ lang_items.collect_lang_item(db, impl_def);
for &(_, assoc) in impl_def.impl_items(db).items.iter() {
match assoc {
- AssocItemId::FunctionId(f) => {
- lang_items.collect_lang_item(db, f, LangItemTarget::Function)
- }
- AssocItemId::TypeAliasId(t) => {
- lang_items.collect_lang_item(db, t, LangItemTarget::TypeAlias)
- }
+ AssocItemId::FunctionId(f) => lang_items.collect_lang_item(db, f),
+ AssocItemId::TypeAliasId(t) => lang_items.collect_lang_item(db, t),
AssocItemId::ConstId(_) => (),
}
}
@@ -122,62 +54,55 @@ pub fn crate_lang_items(db: &dyn DefDatabase, krate: Crate) -> Option<Box<LangIt
for def in module_data.scope.declarations() {
match def {
ModuleDefId::TraitId(trait_) => {
- lang_items.collect_lang_item(db, trait_, LangItemTarget::Trait);
+ lang_items.collect_lang_item(db, trait_);
TraitItems::query(db, trait_).items.iter().for_each(|&(_, assoc_id)| {
match assoc_id {
AssocItemId::FunctionId(f) => {
- lang_items.collect_lang_item(db, f, LangItemTarget::Function);
+ lang_items.collect_lang_item(db, f);
}
AssocItemId::TypeAliasId(alias) => {
- lang_items.collect_lang_item(db, alias, LangItemTarget::TypeAlias)
+ lang_items.collect_lang_item(db, alias)
}
AssocItemId::ConstId(_) => {}
}
});
}
ModuleDefId::AdtId(AdtId::EnumId(e)) => {
- lang_items.collect_lang_item(db, e, LangItemTarget::EnumId);
+ lang_items.collect_lang_item(db, e);
e.enum_variants(db).variants.iter().for_each(|&(id, _, _)| {
- lang_items.collect_lang_item(db, id, LangItemTarget::EnumVariant);
+ lang_items.collect_lang_item(db, id);
});
}
ModuleDefId::AdtId(AdtId::StructId(s)) => {
- lang_items.collect_lang_item(db, s, LangItemTarget::Struct);
+ lang_items.collect_lang_item(db, s);
}
ModuleDefId::AdtId(AdtId::UnionId(u)) => {
- lang_items.collect_lang_item(db, u, LangItemTarget::Union);
+ lang_items.collect_lang_item(db, u);
}
ModuleDefId::FunctionId(f) => {
- lang_items.collect_lang_item(db, f, LangItemTarget::Function);
+ lang_items.collect_lang_item(db, f);
}
ModuleDefId::StaticId(s) => {
- lang_items.collect_lang_item(db, s, LangItemTarget::Static);
+ lang_items.collect_lang_item(db, s);
}
ModuleDefId::TypeAliasId(t) => {
- lang_items.collect_lang_item(db, t, LangItemTarget::TypeAlias);
+ lang_items.collect_lang_item(db, t);
}
_ => {}
}
}
}
- if lang_items.items.is_empty() { None } else { Some(Box::new(lang_items)) }
+ if lang_items.is_empty() { None } else { Some(Box::new(lang_items)) }
}
-/// Salsa query. Look for a lang item, starting from the specified crate and recursively
+/// Salsa query. Look for a lang items, starting from the specified crate and recursively
/// traversing its dependencies.
-#[salsa_macros::tracked]
-pub fn lang_item(
- db: &dyn DefDatabase,
- start_crate: Crate,
- item: LangItem,
-) -> Option<LangItemTarget> {
- let _p = tracing::info_span!("lang_item_query").entered();
- if let Some(target) =
- crate_lang_items(db, start_crate).as_ref().and_then(|it| it.items.get(&item).copied())
- {
- return Some(target);
- }
+#[salsa_macros::tracked(returns(ref))]
+pub fn lang_items(db: &dyn DefDatabase, start_crate: Crate) -> LangItems {
+ let _p = tracing::info_span!("lang_items_query").entered();
+
+ let mut result = crate_lang_items(db, start_crate).cloned().unwrap_or_default();
// Our `CrateGraph` eagerly inserts sysroot dependencies like `core` or `std` into dependencies
// even if the target crate has `#![no_std]`, `#![no_core]` or shadowed sysroot dependencies
@@ -186,42 +111,29 @@ pub fn lang_item(
// while nameres.
//
// See https://github.com/rust-lang/rust-analyzer/pull/20475 for details.
- crate_local_def_map(db, start_crate).local(db).extern_prelude().find_map(|(_, (krate, _))| {
+ for (_, (krate, _)) in crate_local_def_map(db, start_crate).local(db).extern_prelude() {
// Some crates declares themselves as extern crate like `extern crate self as core`.
// Ignore these to prevent cycles.
- if krate.krate == start_crate { None } else { lang_item(db, krate.krate, item) }
- })
-}
+ if krate.krate != start_crate {
+ result.merge_prefer_self(lang_items(db, krate.krate));
+ }
+ }
-#[derive(Default, Debug, Clone, PartialEq, Eq)]
-pub struct LangItems {
- items: FxHashMap<LangItem, LangItemTarget>,
+ result
}
impl LangItems {
- pub fn target(&self, item: LangItem) -> Option<LangItemTarget> {
- self.items.get(&item).copied()
- }
-
- fn collect_lang_item<T>(
- &mut self,
- db: &dyn DefDatabase,
- item: T,
- constructor: fn(T) -> LangItemTarget,
- ) where
- T: Into<AttrDefId> + Copy,
+ fn collect_lang_item<T>(&mut self, db: &dyn DefDatabase, item: T)
+ where
+ T: Into<AttrDefId> + Into<LangItemTarget> + Copy,
{
let _p = tracing::info_span!("collect_lang_item").entered();
- if let Some(lang_item) = lang_attr(db, item.into()) {
- self.items.entry(lang_item).or_insert_with(|| constructor(item));
+ if let Some(lang_item) = AttrFlags::lang_item(db, item.into()) {
+ self.assign_lang_item(lang_item, item.into());
}
}
}
-pub(crate) fn lang_attr(db: &dyn DefDatabase, item: AttrDefId) -> Option<LangItem> {
- db.attrs(item).lang_item()
-}
-
#[salsa::tracked(returns(as_deref))]
pub(crate) fn crate_notable_traits(db: &dyn DefDatabase, krate: Crate) -> Option<Box<[TraitId]>> {
let mut traits = Vec::new();
@@ -231,7 +143,7 @@ pub(crate) fn crate_notable_traits(db: &dyn DefDatabase, krate: Crate) -> Option
for (_, module_data) in crate_def_map.modules() {
for def in module_data.scope.declarations() {
if let ModuleDefId::TraitId(trait_) = def
- && db.attrs(trait_.into()).has_doc_notable_trait()
+ && AttrFlags::query(db, trait_.into()).contains(AttrFlags::IS_DOC_NOTABLE_TRAIT)
{
traits.push(trait_);
}
@@ -249,30 +161,62 @@ pub enum GenericRequirement {
macro_rules! language_item_table {
(
- $( $(#[$attr:meta])* $variant:ident, $module:ident :: $name:ident, $method:ident, $target:expr, $generics:expr; )*
+ $LangItems:ident =>
+ $( $(#[$attr:meta])* $lang_item:ident, $module:ident :: $name:ident, $method:ident, $target:ident, $generics:expr; )*
) => {
+ #[allow(non_snake_case)] // FIXME: Should we remove this?
+ #[derive(Debug, Default, Clone, PartialEq, Eq, Hash)]
+ pub struct $LangItems {
+ $(
+ $(#[$attr])*
+ pub $lang_item: Option<$target>,
+ )*
+ }
+
+ impl LangItems {
+ fn is_empty(&self) -> bool {
+ $( self.$lang_item.is_none() )&&*
+ }
+
+ /// Merges `self` with `other`, with preference to `self` items.
+ fn merge_prefer_self(&mut self, other: &Self) {
+ $( self.$lang_item = self.$lang_item.or(other.$lang_item); )*
+ }
+
+ fn assign_lang_item(&mut self, name: Symbol, target: LangItemTarget) {
+ match name {
+ $(
+ _ if name == $module::$name => {
+ if let LangItemTarget::$target(target) = target {
+ self.$lang_item = Some(target);
+ }
+ }
+ )*
+ _ => {}
+ }
+ }
+ }
- /// A representation of all the valid language items in Rust.
- #[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
- pub enum LangItem {
+ #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+ pub enum LangItemEnum {
$(
- #[doc = concat!("The `", stringify!($name), "` lang item.")]
$(#[$attr])*
- $variant,
+ $lang_item,
)*
}
- impl LangItem {
- pub fn name(self) -> &'static str {
+ impl LangItemEnum {
+ #[inline]
+ pub fn from_lang_items(self, lang_items: &LangItems) -> Option<LangItemTarget> {
match self {
- $( LangItem::$variant => stringify!($name), )*
+ $( LangItemEnum::$lang_item => lang_items.$lang_item.map(Into::into), )*
}
}
- /// Opposite of [`LangItem::name`]
- pub fn from_symbol(sym: &Symbol) -> Option<Self> {
- match sym {
- $(sym if *sym == $module::$name => Some(LangItem::$variant), )*
+ #[inline]
+ pub fn from_symbol(symbol: &Symbol) -> Option<Self> {
+ match symbol {
+ $( _ if *symbol == $module::$name => Some(Self::$lang_item), )*
_ => None,
}
}
@@ -280,142 +224,101 @@ macro_rules! language_item_table {
}
}
-impl LangItem {
- pub fn resolve_function(self, db: &dyn DefDatabase, start_crate: Crate) -> Option<FunctionId> {
- lang_item(db, start_crate, self).and_then(|t| t.as_function())
- }
-
- pub fn resolve_trait(self, db: &dyn DefDatabase, start_crate: Crate) -> Option<TraitId> {
- lang_item(db, start_crate, self).and_then(|t| t.as_trait())
- }
-
- pub fn resolve_adt(self, db: &dyn DefDatabase, start_crate: Crate) -> Option<AdtId> {
- lang_item(db, start_crate, self).and_then(|t| t.as_adt())
- }
-
- pub fn resolve_enum(self, db: &dyn DefDatabase, start_crate: Crate) -> Option<EnumId> {
- lang_item(db, start_crate, self).and_then(|t| t.as_enum())
- }
-
- pub fn resolve_type_alias(
- self,
- db: &dyn DefDatabase,
- start_crate: Crate,
- ) -> Option<TypeAliasId> {
- lang_item(db, start_crate, self).and_then(|t| t.as_type_alias())
- }
-
- /// Opposite of [`LangItem::name`]
- pub fn from_name(name: &hir_expand::name::Name) -> Option<Self> {
- Self::from_symbol(name.symbol())
- }
-
- pub fn path(&self, db: &dyn DefDatabase, start_crate: Crate) -> Option<Path> {
- let t = lang_item(db, start_crate, *self)?;
- Some(Path::LangItem(t, None))
- }
-
- pub fn ty_rel_path(&self, db: &dyn DefDatabase, start_crate: Crate, seg: Name) -> Option<Path> {
- let t = lang_item(db, start_crate, *self)?;
- Some(Path::LangItem(t, Some(seg)))
- }
-}
-
-language_item_table! {
+language_item_table! { LangItems =>
// Variant name, Name, Getter method name, Target Generic requirements;
- Sized, sym::sized, sized_trait, Target::Trait, GenericRequirement::Exact(0);
- MetaSized, sym::meta_sized, sized_trait, Target::Trait, GenericRequirement::Exact(0);
- PointeeSized, sym::pointee_sized, sized_trait, Target::Trait, GenericRequirement::Exact(0);
- Unsize, sym::unsize, unsize_trait, Target::Trait, GenericRequirement::Minimum(1);
+ Sized, sym::sized, sized_trait, TraitId, GenericRequirement::Exact(0);
+ MetaSized, sym::meta_sized, sized_trait, TraitId, GenericRequirement::Exact(0);
+ PointeeSized, sym::pointee_sized, sized_trait, TraitId, GenericRequirement::Exact(0);
+ Unsize, sym::unsize, unsize_trait, TraitId, GenericRequirement::Minimum(1);
/// Trait injected by `#[derive(PartialEq)]`, (i.e. "Partial EQ").
- StructuralPeq, sym::structural_peq, structural_peq_trait, Target::Trait, GenericRequirement::None;
+ StructuralPeq, sym::structural_peq, structural_peq_trait, TraitId, GenericRequirement::None;
/// Trait injected by `#[derive(Eq)]`, (i.e. "Total EQ"; no, I will not apologize).
- StructuralTeq, sym::structural_teq, structural_teq_trait, Target::Trait, GenericRequirement::None;
- Copy, sym::copy, copy_trait, Target::Trait, GenericRequirement::Exact(0);
- Clone, sym::clone, clone_trait, Target::Trait, GenericRequirement::None;
- Sync, sym::sync, sync_trait, Target::Trait, GenericRequirement::Exact(0);
- DiscriminantKind, sym::discriminant_kind, discriminant_kind_trait, Target::Trait, GenericRequirement::None;
- /// The associated item of the [`DiscriminantKind`] trait.
- Discriminant, sym::discriminant_type, discriminant_type, Target::AssocTy, GenericRequirement::None;
+ StructuralTeq, sym::structural_teq, structural_teq_trait, TraitId, GenericRequirement::None;
+ Copy, sym::copy, copy_trait, TraitId, GenericRequirement::Exact(0);
+ Clone, sym::clone, clone_trait, TraitId, GenericRequirement::None;
+ Sync, sym::sync, sync_trait, TraitId, GenericRequirement::Exact(0);
+ DiscriminantKind, sym::discriminant_kind, discriminant_kind_trait, TraitId, GenericRequirement::None;
+ /// The associated item of the `DiscriminantKind` trait.
+ Discriminant, sym::discriminant_type, discriminant_type, TypeAliasId, GenericRequirement::None;
- PointeeTrait, sym::pointee_trait, pointee_trait, Target::Trait, GenericRequirement::None;
- Metadata, sym::metadata_type, metadata_type, Target::AssocTy, GenericRequirement::None;
- DynMetadata, sym::dyn_metadata, dyn_metadata, Target::Struct, GenericRequirement::None;
+ PointeeTrait, sym::pointee_trait, pointee_trait, TraitId, GenericRequirement::None;
+ Metadata, sym::metadata_type, metadata_type, TypeAliasId, GenericRequirement::None;
+ DynMetadata, sym::dyn_metadata, dyn_metadata, StructId, GenericRequirement::None;
- Freeze, sym::freeze, freeze_trait, Target::Trait, GenericRequirement::Exact(0);
+ Freeze, sym::freeze, freeze_trait, TraitId, GenericRequirement::Exact(0);
- FnPtrTrait, sym::fn_ptr_trait, fn_ptr_trait, Target::Trait, GenericRequirement::Exact(0);
- FnPtrAddr, sym::fn_ptr_addr, fn_ptr_addr, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
+ FnPtrTrait, sym::fn_ptr_trait, fn_ptr_trait, TraitId, GenericRequirement::Exact(0);
+ FnPtrAddr, sym::fn_ptr_addr, fn_ptr_addr, FunctionId, GenericRequirement::None;
- Drop, sym::drop, drop_trait, Target::Trait, GenericRequirement::None;
- Destruct, sym::destruct, destruct_trait, Target::Trait, GenericRequirement::None;
+ Drop, sym::drop, drop_trait, TraitId, GenericRequirement::None;
+ Destruct, sym::destruct, destruct_trait, TraitId, GenericRequirement::None;
- CoerceUnsized, sym::coerce_unsized, coerce_unsized_trait, Target::Trait, GenericRequirement::Minimum(1);
- DispatchFromDyn, sym::dispatch_from_dyn, dispatch_from_dyn_trait, Target::Trait, GenericRequirement::Minimum(1);
+ CoerceUnsized, sym::coerce_unsized, coerce_unsized_trait, TraitId, GenericRequirement::Minimum(1);
+ DispatchFromDyn, sym::dispatch_from_dyn, dispatch_from_dyn_trait, TraitId, GenericRequirement::Minimum(1);
// language items relating to transmutability
- TransmuteOpts, sym::transmute_opts, transmute_opts, Target::Struct, GenericRequirement::Exact(0);
- TransmuteTrait, sym::transmute_trait, transmute_trait, Target::Trait, GenericRequirement::Exact(3);
-
- Add, sym::add, add_trait, Target::Trait, GenericRequirement::Exact(1);
- Sub, sym::sub, sub_trait, Target::Trait, GenericRequirement::Exact(1);
- Mul, sym::mul, mul_trait, Target::Trait, GenericRequirement::Exact(1);
- Div, sym::div, div_trait, Target::Trait, GenericRequirement::Exact(1);
- Rem, sym::rem, rem_trait, Target::Trait, GenericRequirement::Exact(1);
- Neg, sym::neg, neg_trait, Target::Trait, GenericRequirement::Exact(0);
- Not, sym::not, not_trait, Target::Trait, GenericRequirement::Exact(0);
- BitXor, sym::bitxor, bitxor_trait, Target::Trait, GenericRequirement::Exact(1);
- BitAnd, sym::bitand, bitand_trait, Target::Trait, GenericRequirement::Exact(1);
- BitOr, sym::bitor, bitor_trait, Target::Trait, GenericRequirement::Exact(1);
- Shl, sym::shl, shl_trait, Target::Trait, GenericRequirement::Exact(1);
- Shr, sym::shr, shr_trait, Target::Trait, GenericRequirement::Exact(1);
- AddAssign, sym::add_assign, add_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- SubAssign, sym::sub_assign, sub_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- MulAssign, sym::mul_assign, mul_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- DivAssign, sym::div_assign, div_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- RemAssign, sym::rem_assign, rem_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- BitXorAssign, sym::bitxor_assign, bitxor_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- BitAndAssign, sym::bitand_assign, bitand_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- BitOrAssign, sym::bitor_assign, bitor_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- ShlAssign, sym::shl_assign, shl_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- ShrAssign, sym::shr_assign, shr_assign_trait, Target::Trait, GenericRequirement::Exact(1);
- Index, sym::index, index_trait, Target::Trait, GenericRequirement::Exact(1);
- IndexMut, sym::index_mut, index_mut_trait, Target::Trait, GenericRequirement::Exact(1);
-
- UnsafeCell, sym::unsafe_cell, unsafe_cell_type, Target::Struct, GenericRequirement::None;
- UnsafePinned, sym::unsafe_pinned, unsafe_pinned_type, Target::Struct, GenericRequirement::None;
- VaList, sym::va_list, va_list, Target::Struct, GenericRequirement::None;
-
- Deref, sym::deref, deref_trait, Target::Trait, GenericRequirement::Exact(0);
- DerefMut, sym::deref_mut, deref_mut_trait, Target::Trait, GenericRequirement::Exact(0);
- DerefTarget, sym::deref_target, deref_target, Target::AssocTy, GenericRequirement::None;
- Receiver, sym::receiver, receiver_trait, Target::Trait, GenericRequirement::None;
- ReceiverTarget, sym::receiver_target, receiver_target, Target::AssocTy, GenericRequirement::None;
-
- Fn, sym::fn_, fn_trait, Target::Trait, GenericRequirement::Exact(1);
- FnMut, sym::fn_mut, fn_mut_trait, Target::Trait, GenericRequirement::Exact(1);
- FnOnce, sym::fn_once, fn_once_trait, Target::Trait, GenericRequirement::Exact(1);
- AsyncFn, sym::async_fn, async_fn_trait, Target::Trait, GenericRequirement::Exact(1);
- AsyncFnMut, sym::async_fn_mut, async_fn_mut_trait, Target::Trait, GenericRequirement::Exact(1);
- AsyncFnOnce, sym::async_fn_once, async_fn_once_trait, Target::Trait, GenericRequirement::Exact(1);
-
- CallRefFuture, sym::call_ref_future, call_ref_future_ty, Target::AssocTy, GenericRequirement::None;
- CallOnceFuture, sym::call_once_future, call_once_future_ty, Target::AssocTy, GenericRequirement::None;
- AsyncFnOnceOutput, sym::async_fn_once_output, async_fn_once_output_ty, Target::AssocTy, GenericRequirement::None;
-
- FnOnceOutput, sym::fn_once_output, fn_once_output, Target::AssocTy, GenericRequirement::None;
-
- Future, sym::future_trait, future_trait, Target::Trait, GenericRequirement::Exact(0);
- CoroutineState, sym::coroutine_state, coroutine_state, Target::Enum, GenericRequirement::None;
- Coroutine, sym::coroutine, coroutine_trait, Target::Trait, GenericRequirement::Minimum(1);
- CoroutineReturn, sym::coroutine_return, coroutine_return_ty, Target::AssocTy, GenericRequirement::None;
- CoroutineYield, sym::coroutine_yield, coroutine_yield_ty, Target::AssocTy, GenericRequirement::None;
- Unpin, sym::unpin, unpin_trait, Target::Trait, GenericRequirement::None;
- Pin, sym::pin, pin_type, Target::Struct, GenericRequirement::None;
-
- PartialEq, sym::eq, eq_trait, Target::Trait, GenericRequirement::Exact(1);
- PartialOrd, sym::partial_ord, partial_ord_trait, Target::Trait, GenericRequirement::Exact(1);
- CVoid, sym::c_void, c_void, Target::Enum, GenericRequirement::None;
+ TransmuteOpts, sym::transmute_opts, transmute_opts, StructId, GenericRequirement::Exact(0);
+ TransmuteTrait, sym::transmute_trait, transmute_trait, TraitId, GenericRequirement::Exact(3);
+
+ Add, sym::add, add_trait, TraitId, GenericRequirement::Exact(1);
+ Sub, sym::sub, sub_trait, TraitId, GenericRequirement::Exact(1);
+ Mul, sym::mul, mul_trait, TraitId, GenericRequirement::Exact(1);
+ Div, sym::div, div_trait, TraitId, GenericRequirement::Exact(1);
+ Rem, sym::rem, rem_trait, TraitId, GenericRequirement::Exact(1);
+ Neg, sym::neg, neg_trait, TraitId, GenericRequirement::Exact(0);
+ Not, sym::not, not_trait, TraitId, GenericRequirement::Exact(0);
+ BitXor, sym::bitxor, bitxor_trait, TraitId, GenericRequirement::Exact(1);
+ BitAnd, sym::bitand, bitand_trait, TraitId, GenericRequirement::Exact(1);
+ BitOr, sym::bitor, bitor_trait, TraitId, GenericRequirement::Exact(1);
+ Shl, sym::shl, shl_trait, TraitId, GenericRequirement::Exact(1);
+ Shr, sym::shr, shr_trait, TraitId, GenericRequirement::Exact(1);
+ AddAssign, sym::add_assign, add_assign_trait, TraitId, GenericRequirement::Exact(1);
+ SubAssign, sym::sub_assign, sub_assign_trait, TraitId, GenericRequirement::Exact(1);
+ MulAssign, sym::mul_assign, mul_assign_trait, TraitId, GenericRequirement::Exact(1);
+ DivAssign, sym::div_assign, div_assign_trait, TraitId, GenericRequirement::Exact(1);
+ RemAssign, sym::rem_assign, rem_assign_trait, TraitId, GenericRequirement::Exact(1);
+ BitXorAssign, sym::bitxor_assign, bitxor_assign_trait, TraitId, GenericRequirement::Exact(1);
+ BitAndAssign, sym::bitand_assign, bitand_assign_trait, TraitId, GenericRequirement::Exact(1);
+ BitOrAssign, sym::bitor_assign, bitor_assign_trait, TraitId, GenericRequirement::Exact(1);
+ ShlAssign, sym::shl_assign, shl_assign_trait, TraitId, GenericRequirement::Exact(1);
+ ShrAssign, sym::shr_assign, shr_assign_trait, TraitId, GenericRequirement::Exact(1);
+ Index, sym::index, index_trait, TraitId, GenericRequirement::Exact(1);
+ IndexMut, sym::index_mut, index_mut_trait, TraitId, GenericRequirement::Exact(1);
+
+ UnsafeCell, sym::unsafe_cell, unsafe_cell_type, StructId, GenericRequirement::None;
+ UnsafePinned, sym::unsafe_pinned, unsafe_pinned_type, StructId, GenericRequirement::None;
+ VaList, sym::va_list, va_list, StructId, GenericRequirement::None;
+
+ Deref, sym::deref, deref_trait, TraitId, GenericRequirement::Exact(0);
+ DerefMut, sym::deref_mut, deref_mut_trait, TraitId, GenericRequirement::Exact(0);
+ DerefTarget, sym::deref_target, deref_target, TypeAliasId, GenericRequirement::None;
+ Receiver, sym::receiver, receiver_trait, TraitId, GenericRequirement::None;
+ ReceiverTarget, sym::receiver_target, receiver_target, TypeAliasId, GenericRequirement::None;
+
+ Fn, sym::fn_, fn_trait, TraitId, GenericRequirement::Exact(1);
+ FnMut, sym::fn_mut, fn_mut_trait, TraitId, GenericRequirement::Exact(1);
+ FnOnce, sym::fn_once, fn_once_trait, TraitId, GenericRequirement::Exact(1);
+ AsyncFn, sym::async_fn, async_fn_trait, TraitId, GenericRequirement::Exact(1);
+ AsyncFnMut, sym::async_fn_mut, async_fn_mut_trait, TraitId, GenericRequirement::Exact(1);
+ AsyncFnOnce, sym::async_fn_once, async_fn_once_trait, TraitId, GenericRequirement::Exact(1);
+
+ CallRefFuture, sym::call_ref_future, call_ref_future_ty, TypeAliasId, GenericRequirement::None;
+ CallOnceFuture, sym::call_once_future, call_once_future_ty, TypeAliasId, GenericRequirement::None;
+ AsyncFnOnceOutput, sym::async_fn_once_output, async_fn_once_output_ty, TypeAliasId, GenericRequirement::None;
+
+ FnOnceOutput, sym::fn_once_output, fn_once_output, TypeAliasId, GenericRequirement::None;
+
+ Future, sym::future_trait, future_trait, TraitId, GenericRequirement::Exact(0);
+ CoroutineState, sym::coroutine_state, coroutine_state, EnumId, GenericRequirement::None;
+ Coroutine, sym::coroutine, coroutine_trait, TraitId, GenericRequirement::Minimum(1);
+ CoroutineReturn, sym::coroutine_return, coroutine_return_ty, TypeAliasId, GenericRequirement::None;
+ CoroutineYield, sym::coroutine_yield, coroutine_yield_ty, TypeAliasId, GenericRequirement::None;
+ Unpin, sym::unpin, unpin_trait, TraitId, GenericRequirement::None;
+ Pin, sym::pin, pin_type, StructId, GenericRequirement::None;
+
+ PartialEq, sym::eq, eq_trait, TraitId, GenericRequirement::Exact(1);
+ PartialOrd, sym::partial_ord, partial_ord_trait, TraitId, GenericRequirement::Exact(1);
+ CVoid, sym::c_void, c_void, EnumId, GenericRequirement::None;
// A number of panic-related lang items. The `panic` item corresponds to divide-by-zero and
// various panic cases with `match`. The `panic_bounds_check` item is for indexing arrays.
@@ -424,107 +327,107 @@ language_item_table! {
// in the sense that a crate is not required to have it defined to use it, but a final product
// is required to define it somewhere. Additionally, there are restrictions on crates that use
// a weak lang item, but do not have it defined.
- Panic, sym::panic, panic_fn, Target::Fn, GenericRequirement::Exact(0);
- PanicNounwind, sym::panic_nounwind, panic_nounwind, Target::Fn, GenericRequirement::Exact(0);
- PanicFmt, sym::panic_fmt, panic_fmt, Target::Fn, GenericRequirement::None;
- PanicDisplay, sym::panic_display, panic_display, Target::Fn, GenericRequirement::None;
- ConstPanicFmt, sym::const_panic_fmt, const_panic_fmt, Target::Fn, GenericRequirement::None;
- PanicBoundsCheck, sym::panic_bounds_check, panic_bounds_check_fn, Target::Fn, GenericRequirement::Exact(0);
- PanicMisalignedPointerDereference, sym::panic_misaligned_pointer_dereference, panic_misaligned_pointer_dereference_fn, Target::Fn, GenericRequirement::Exact(0);
- PanicInfo, sym::panic_info, panic_info, Target::Struct, GenericRequirement::None;
- PanicLocation, sym::panic_location, panic_location, Target::Struct, GenericRequirement::None;
- PanicImpl, sym::panic_impl, panic_impl, Target::Fn, GenericRequirement::None;
- PanicCannotUnwind, sym::panic_cannot_unwind, panic_cannot_unwind, Target::Fn, GenericRequirement::Exact(0);
- PanicNullPointerDereference, sym::panic_null_pointer_dereference, panic_null_pointer_dereference, Target::Fn, GenericRequirement::None;
+ Panic, sym::panic, panic_fn, FunctionId, GenericRequirement::Exact(0);
+ PanicNounwind, sym::panic_nounwind, panic_nounwind, FunctionId, GenericRequirement::Exact(0);
+ PanicFmt, sym::panic_fmt, panic_fmt, FunctionId, GenericRequirement::None;
+ PanicDisplay, sym::panic_display, panic_display, FunctionId, GenericRequirement::None;
+ ConstPanicFmt, sym::const_panic_fmt, const_panic_fmt, FunctionId, GenericRequirement::None;
+ PanicBoundsCheck, sym::panic_bounds_check, panic_bounds_check_fn, FunctionId, GenericRequirement::Exact(0);
+ PanicMisalignedPointerDereference, sym::panic_misaligned_pointer_dereference, panic_misaligned_pointer_dereference_fn, FunctionId, GenericRequirement::Exact(0);
+ PanicInfo, sym::panic_info, panic_info, StructId, GenericRequirement::None;
+ PanicLocation, sym::panic_location, panic_location, StructId, GenericRequirement::None;
+ PanicImpl, sym::panic_impl, panic_impl, FunctionId, GenericRequirement::None;
+ PanicCannotUnwind, sym::panic_cannot_unwind, panic_cannot_unwind, FunctionId, GenericRequirement::Exact(0);
+ PanicNullPointerDereference, sym::panic_null_pointer_dereference, panic_null_pointer_dereference, FunctionId, GenericRequirement::None;
/// libstd panic entry point. Necessary for const eval to be able to catch it
- BeginPanic, sym::begin_panic, begin_panic_fn, Target::Fn, GenericRequirement::None;
+ BeginPanic, sym::begin_panic, begin_panic_fn, FunctionId, GenericRequirement::None;
// Lang items needed for `format_args!()`.
- FormatAlignment, sym::format_alignment, format_alignment, Target::Enum, GenericRequirement::None;
- FormatArgument, sym::format_argument, format_argument, Target::Struct, GenericRequirement::None;
- FormatArguments, sym::format_arguments, format_arguments, Target::Struct, GenericRequirement::None;
- FormatCount, sym::format_count, format_count, Target::Enum, GenericRequirement::None;
- FormatPlaceholder, sym::format_placeholder, format_placeholder, Target::Struct, GenericRequirement::None;
- FormatUnsafeArg, sym::format_unsafe_arg, format_unsafe_arg, Target::Struct, GenericRequirement::None;
+ FormatAlignment, sym::format_alignment, format_alignment, EnumId, GenericRequirement::None;
+ FormatArgument, sym::format_argument, format_argument, StructId, GenericRequirement::None;
+ FormatArguments, sym::format_arguments, format_arguments, StructId, GenericRequirement::None;
+ FormatCount, sym::format_count, format_count, EnumId, GenericRequirement::None;
+ FormatPlaceholder, sym::format_placeholder, format_placeholder, StructId, GenericRequirement::None;
+ FormatUnsafeArg, sym::format_unsafe_arg, format_unsafe_arg, StructId, GenericRequirement::None;
- ExchangeMalloc, sym::exchange_malloc, exchange_malloc_fn, Target::Fn, GenericRequirement::None;
- BoxFree, sym::box_free, box_free_fn, Target::Fn, GenericRequirement::Minimum(1);
- DropInPlace, sym::drop_in_place, drop_in_place_fn, Target::Fn, GenericRequirement::Minimum(1);
- AllocLayout, sym::alloc_layout, alloc_layout, Target::Struct, GenericRequirement::None;
+ ExchangeMalloc, sym::exchange_malloc, exchange_malloc_fn, FunctionId, GenericRequirement::None;
+ BoxFree, sym::box_free, box_free_fn, FunctionId, GenericRequirement::Minimum(1);
+ DropInPlace, sym::drop_in_place, drop_in_place_fn, FunctionId, GenericRequirement::Minimum(1);
+ AllocLayout, sym::alloc_layout, alloc_layout, StructId, GenericRequirement::None;
- Start, sym::start, start_fn, Target::Fn, GenericRequirement::Exact(1);
+ Start, sym::start, start_fn, FunctionId, GenericRequirement::Exact(1);
- EhPersonality, sym::eh_personality, eh_personality, Target::Fn, GenericRequirement::None;
- EhCatchTypeinfo, sym::eh_catch_typeinfo, eh_catch_typeinfo, Target::Static, GenericRequirement::None;
+ EhPersonality, sym::eh_personality, eh_personality, FunctionId, GenericRequirement::None;
+ EhCatchTypeinfo, sym::eh_catch_typeinfo, eh_catch_typeinfo, StaticId, GenericRequirement::None;
- OwnedBox, sym::owned_box, owned_box, Target::Struct, GenericRequirement::Minimum(1);
+ OwnedBox, sym::owned_box, owned_box, StructId, GenericRequirement::Minimum(1);
- PhantomData, sym::phantom_data, phantom_data, Target::Struct, GenericRequirement::Exact(1);
+ PhantomData, sym::phantom_data, phantom_data, StructId, GenericRequirement::Exact(1);
- ManuallyDrop, sym::manually_drop, manually_drop, Target::Struct, GenericRequirement::None;
+ ManuallyDrop, sym::manually_drop, manually_drop, StructId, GenericRequirement::None;
- MaybeUninit, sym::maybe_uninit, maybe_uninit, Target::Union, GenericRequirement::None;
+ MaybeUninit, sym::maybe_uninit, maybe_uninit, UnionId, GenericRequirement::None;
/// Align offset for stride != 1; must not panic.
- AlignOffset, sym::align_offset, align_offset_fn, Target::Fn, GenericRequirement::None;
+ AlignOffset, sym::align_offset, align_offset_fn, FunctionId, GenericRequirement::None;
- Termination, sym::termination, termination, Target::Trait, GenericRequirement::None;
+ Termination, sym::termination, termination, TraitId, GenericRequirement::None;
- Try, sym::Try, try_trait, Target::Trait, GenericRequirement::None;
+ Try, sym::Try, try_trait, TraitId, GenericRequirement::None;
- Tuple, sym::tuple_trait, tuple_trait, Target::Trait, GenericRequirement::Exact(0);
+ Tuple, sym::tuple_trait, tuple_trait, TraitId, GenericRequirement::Exact(0);
- SliceLen, sym::slice_len_fn, slice_len_fn, Target::Method(MethodKind::Inherent), GenericRequirement::None;
+ SliceLen, sym::slice_len_fn, slice_len_fn, FunctionId, GenericRequirement::None;
// Language items from AST lowering
- TryTraitFromResidual, sym::from_residual, from_residual_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
- TryTraitFromOutput, sym::from_output, from_output_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
- TryTraitBranch, sym::branch, branch_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
- TryTraitFromYeet, sym::from_yeet, from_yeet_fn, Target::Fn, GenericRequirement::None;
+ TryTraitFromResidual, sym::from_residual, from_residual_fn, FunctionId, GenericRequirement::None;
+ TryTraitFromOutput, sym::from_output, from_output_fn, FunctionId, GenericRequirement::None;
+ TryTraitBranch, sym::branch, branch_fn, FunctionId, GenericRequirement::None;
+ TryTraitFromYeet, sym::from_yeet, from_yeet_fn, FunctionId, GenericRequirement::None;
- PointerLike, sym::pointer_like, pointer_like, Target::Trait, GenericRequirement::Exact(0);
+ PointerLike, sym::pointer_like, pointer_like, TraitId, GenericRequirement::Exact(0);
- ConstParamTy, sym::const_param_ty, const_param_ty_trait, Target::Trait, GenericRequirement::Exact(0);
+ ConstParamTy, sym::const_param_ty, const_param_ty_trait, TraitId, GenericRequirement::Exact(0);
- Poll, sym::Poll, poll, Target::Enum, GenericRequirement::None;
- PollReady, sym::Ready, poll_ready_variant, Target::Variant, GenericRequirement::None;
- PollPending, sym::Pending, poll_pending_variant, Target::Variant, GenericRequirement::None;
+ Poll, sym::Poll, poll, EnumId, GenericRequirement::None;
+ PollReady, sym::Ready, poll_ready_variant, EnumVariantId, GenericRequirement::None;
+ PollPending, sym::Pending, poll_pending_variant, EnumVariantId, GenericRequirement::None;
// FIXME(swatinem): the following lang items are used for async lowering and
// should become obsolete eventually.
- ResumeTy, sym::ResumeTy, resume_ty, Target::Struct, GenericRequirement::None;
- GetContext, sym::get_context, get_context_fn, Target::Fn, GenericRequirement::None;
+ ResumeTy, sym::ResumeTy, resume_ty, StructId, GenericRequirement::None;
+ GetContext, sym::get_context, get_context_fn, FunctionId, GenericRequirement::None;
- Context, sym::Context, context, Target::Struct, GenericRequirement::None;
- FuturePoll, sym::poll, future_poll_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
- FutureOutput, sym::future_output, future_output, Target::TypeAlias, GenericRequirement::None;
+ Context, sym::Context, context, StructId, GenericRequirement::None;
+ FuturePoll, sym::poll, future_poll_fn, FunctionId, GenericRequirement::None;
+ FutureOutput, sym::future_output, future_output, TypeAliasId, GenericRequirement::None;
- Option, sym::Option, option_type, Target::Enum, GenericRequirement::None;
- OptionSome, sym::Some, option_some_variant, Target::Variant, GenericRequirement::None;
- OptionNone, sym::None, option_none_variant, Target::Variant, GenericRequirement::None;
+ Option, sym::Option, option_type, EnumId, GenericRequirement::None;
+ OptionSome, sym::Some, option_some_variant, EnumVariantId, GenericRequirement::None;
+ OptionNone, sym::None, option_none_variant, EnumVariantId, GenericRequirement::None;
- ResultOk, sym::Ok, result_ok_variant, Target::Variant, GenericRequirement::None;
- ResultErr, sym::Err, result_err_variant, Target::Variant, GenericRequirement::None;
+ ResultOk, sym::Ok, result_ok_variant, EnumVariantId, GenericRequirement::None;
+ ResultErr, sym::Err, result_err_variant, EnumVariantId, GenericRequirement::None;
- ControlFlowContinue, sym::Continue, cf_continue_variant, Target::Variant, GenericRequirement::None;
- ControlFlowBreak, sym::Break, cf_break_variant, Target::Variant, GenericRequirement::None;
+ ControlFlowContinue, sym::Continue, cf_continue_variant, EnumVariantId, GenericRequirement::None;
+ ControlFlowBreak, sym::Break, cf_break_variant, EnumVariantId, GenericRequirement::None;
- IntoFutureIntoFuture, sym::into_future, into_future_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
- IntoIterIntoIter, sym::into_iter, into_iter_fn, Target::Method(MethodKind::Trait { body: false }), GenericRequirement::None;
- IteratorNext, sym::next, next_fn, Target::Method(MethodKind::Trait { body: false}), GenericRequirement::None;
- Iterator, sym::iterator, iterator, Target::Trait, GenericRequirement::None;
+ IntoFutureIntoFuture, sym::into_future, into_future_fn, FunctionId, GenericRequirement::None;
+ IntoIterIntoIter, sym::into_iter, into_iter_fn, FunctionId, GenericRequirement::None;
+ IteratorNext, sym::next, next_fn, FunctionId, GenericRequirement::None;
+ Iterator, sym::iterator, iterator, TraitId, GenericRequirement::None;
- PinNewUnchecked, sym::new_unchecked, new_unchecked_fn, Target::Method(MethodKind::Inherent), GenericRequirement::None;
+ PinNewUnchecked, sym::new_unchecked, new_unchecked_fn, FunctionId, GenericRequirement::None;
- RangeFrom, sym::RangeFrom, range_from_struct, Target::Struct, GenericRequirement::None;
- RangeFull, sym::RangeFull, range_full_struct, Target::Struct, GenericRequirement::None;
- RangeInclusiveStruct, sym::RangeInclusive, range_inclusive_struct, Target::Struct, GenericRequirement::None;
- RangeInclusiveNew, sym::range_inclusive_new, range_inclusive_new_method, Target::Method(MethodKind::Inherent), GenericRequirement::None;
- Range, sym::Range, range_struct, Target::Struct, GenericRequirement::None;
- RangeToInclusive, sym::RangeToInclusive, range_to_inclusive_struct, Target::Struct, GenericRequirement::None;
- RangeTo, sym::RangeTo, range_to_struct, Target::Struct, GenericRequirement::None;
+ RangeFrom, sym::RangeFrom, range_from_struct, StructId, GenericRequirement::None;
+ RangeFull, sym::RangeFull, range_full_struct, StructId, GenericRequirement::None;
+ RangeInclusiveStruct, sym::RangeInclusive, range_inclusive_struct, StructId, GenericRequirement::None;
+ RangeInclusiveNew, sym::range_inclusive_new, range_inclusive_new_method, FunctionId, GenericRequirement::None;
+ Range, sym::Range, range_struct, StructId, GenericRequirement::None;
+ RangeToInclusive, sym::RangeToInclusive, range_to_inclusive_struct, StructId, GenericRequirement::None;
+ RangeTo, sym::RangeTo, range_to_struct, StructId, GenericRequirement::None;
- String, sym::String, string, Target::Struct, GenericRequirement::None;
- CStr, sym::CStr, c_str, Target::Struct, GenericRequirement::None;
- Ordering, sym::Ordering, ordering, Target::Enum, GenericRequirement::None;
+ String, sym::String, string, StructId, GenericRequirement::None;
+ CStr, sym::CStr, c_str, StructId, GenericRequirement::None;
+ Ordering, sym::Ordering, ordering, EnumId, GenericRequirement::None;
}