1 //! Name resolution façade.
2 use std::{hash::BuildHasherDefault, sync::Arc};
5 use hir_expand::name::{name, Name};
6 use indexmap::IndexMap;
7 use rustc_hash::FxHashSet;
8 use smallvec::{smallvec, SmallVec};
11 body::scope::{ExprScopes, ScopeId},
12 builtin_type::BuiltinType,
14 expr::{ExprId, LabelId, PatId},
15 generics::{GenericParams, TypeOrConstParamData},
17 item_scope::{BuiltinShadowMode, BUILTIN_SCOPE},
19 path::{ModPath, PathKind},
21 visibility::{RawVisibility, Visibility},
22 AdtId, AssocItemId, ConstId, ConstParamId, DefWithBodyId, EnumId, EnumVariantId, ExternBlockId,
23 FunctionId, GenericDefId, GenericParamId, HasModule, ImplId, ItemContainerId, LifetimeParamId,
24 LocalModuleId, Lookup, Macro2Id, MacroId, MacroRulesId, ModuleDefId, ModuleId, ProcMacroId,
25 StaticId, StructId, TraitId, TypeAliasId, TypeOrConstParamId, TypeParamId, VariantId,
28 #[derive(Debug, Clone)]
30 /// The stack of scopes, where the inner-most scope is the last item.
32 /// When using, you generally want to process the scopes in reverse order,
33 /// there's `scopes` *method* for that.
35 module_scope: ModuleItemMap,
38 #[derive(Debug, Clone)]
39 struct ModuleItemMap {
41 module_id: LocalModuleId,
44 #[derive(Debug, Clone)]
47 expr_scopes: Arc<ExprScopes>,
51 #[derive(Debug, Clone)]
53 /// All the items and imported names of a module
54 BlockScope(ModuleItemMap),
55 /// Brings the generic parameters of an item into scope
56 GenericParams { def: GenericDefId, params: Interned<GenericParams> },
57 /// Brings `Self` in `impl` block into scope
59 /// Brings `Self` in enum, struct and union definitions into scope
65 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
68 GenericParam(TypeParamId),
71 // Yup, enum variants are added to the types ns, but any usage of variant as
73 EnumVariantId(EnumVariantId),
74 TypeAliasId(TypeAliasId),
75 BuiltinType(BuiltinType),
77 // Module belong to type ns, but the resolver is used when all module paths
78 // are fully resolved.
82 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
83 pub enum ResolveValueResult {
85 Partial(TypeNs, usize),
88 #[derive(Debug, Clone, PartialEq, Eq, Hash)]
92 FunctionId(FunctionId),
96 EnumVariantId(EnumVariantId),
97 GenericParam(ConstParamId),
101 /// Resolve known trait from std, like `std::futures::Future`
102 pub fn resolve_known_trait(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<TraitId> {
103 let res = self.resolve_module_path(db, path, BuiltinShadowMode::Other).take_types()?;
105 ModuleDefId::TraitId(it) => Some(it),
110 /// Resolve known struct from std, like `std::boxed::Box`
111 pub fn resolve_known_struct(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<StructId> {
112 let res = self.resolve_module_path(db, path, BuiltinShadowMode::Other).take_types()?;
114 ModuleDefId::AdtId(AdtId::StructId(it)) => Some(it),
119 /// Resolve known enum from std, like `std::result::Result`
120 pub fn resolve_known_enum(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<EnumId> {
121 let res = self.resolve_module_path(db, path, BuiltinShadowMode::Other).take_types()?;
123 ModuleDefId::AdtId(AdtId::EnumId(it)) => Some(it),
128 pub fn resolve_module_path_in_items(&self, db: &dyn DefDatabase, path: &ModPath) -> PerNs {
129 self.resolve_module_path(db, path, BuiltinShadowMode::Module)
132 // FIXME: This shouldn't exist
133 pub fn resolve_module_path_in_trait_assoc_items(
135 db: &dyn DefDatabase,
138 let (item_map, module) = self.item_scope();
139 let (module_res, idx) = item_map.resolve_path(db, module, path, BuiltinShadowMode::Module);
140 match module_res.take_types()? {
141 ModuleDefId::TraitId(it) => {
143 let unresolved = &path.segments()[idx..];
144 let assoc = match unresolved {
148 let &(_, assoc) = db.trait_data(it).items.iter().find(|(n, _)| n == assoc)?;
150 AssocItemId::FunctionId(it) => PerNs::values(it.into(), Visibility::Public),
151 AssocItemId::ConstId(it) => PerNs::values(it.into(), Visibility::Public),
152 AssocItemId::TypeAliasId(it) => PerNs::types(it.into(), Visibility::Public),
159 pub fn resolve_path_in_type_ns(
161 db: &dyn DefDatabase,
163 ) -> Option<(TypeNs, Option<usize>)> {
164 let first_name = path.segments().first()?;
165 let skip_to_mod = path.kind != PathKind::Plain;
167 return self.module_scope.resolve_path_in_type_ns(db, path);
170 let remaining_idx = || if path.segments().len() == 1 { None } else { Some(1) };
172 for scope in self.scopes() {
174 Scope::ExprScope(_) => continue,
175 Scope::GenericParams { params, def } => {
176 if let Some(id) = params.find_type_by_name(first_name, *def) {
177 return Some((TypeNs::GenericParam(id), remaining_idx()));
180 &Scope::ImplDefScope(impl_) => {
181 if first_name == &name![Self] {
182 return Some((TypeNs::SelfType(impl_), remaining_idx()));
185 &Scope::AdtScope(adt) => {
186 if first_name == &name![Self] {
187 return Some((TypeNs::AdtSelfType(adt), remaining_idx()));
190 Scope::BlockScope(m) => {
191 if let Some(res) = m.resolve_path_in_type_ns(db, path) {
197 self.module_scope.resolve_path_in_type_ns(db, path)
200 pub fn resolve_path_in_type_ns_fully(
202 db: &dyn DefDatabase,
204 ) -> Option<TypeNs> {
205 let (res, unresolved) = self.resolve_path_in_type_ns(db, path)?;
206 if unresolved.is_some() {
212 pub fn resolve_visibility(
214 db: &dyn DefDatabase,
215 visibility: &RawVisibility,
216 ) -> Option<Visibility> {
218 RawVisibility::Module(_) => {
219 let (item_map, module) = self.item_scope();
220 item_map.resolve_visibility(db, module, visibility)
222 RawVisibility::Public => Some(Visibility::Public),
226 pub fn resolve_path_in_value_ns(
228 db: &dyn DefDatabase,
230 ) -> Option<ResolveValueResult> {
231 let n_segments = path.segments().len();
232 let tmp = name![self];
233 let first_name = if path.is_self() { &tmp } else { path.segments().first()? };
234 let skip_to_mod = path.kind != PathKind::Plain && !path.is_self();
236 return self.module_scope.resolve_path_in_value_ns(db, path);
239 for scope in self.scopes() {
241 Scope::ExprScope(_) if n_segments > 1 => continue,
242 Scope::ExprScope(scope) => {
245 .entries(scope.scope_id)
247 .find(|entry| entry.name() == first_name);
249 if let Some(e) = entry {
250 return Some(ResolveValueResult::ValueNs(ValueNs::LocalBinding(e.pat())));
253 Scope::GenericParams { params, def } if n_segments > 1 => {
254 if let Some(id) = params.find_type_by_name(first_name, *def) {
255 let ty = TypeNs::GenericParam(id);
256 return Some(ResolveValueResult::Partial(ty, 1));
259 Scope::GenericParams { .. } if n_segments != 1 => continue,
260 Scope::GenericParams { params, def } => {
261 if let Some(id) = params.find_const_by_name(first_name, *def) {
262 let val = ValueNs::GenericParam(id);
263 return Some(ResolveValueResult::ValueNs(val));
267 &Scope::ImplDefScope(impl_) => {
268 if first_name == &name![Self] {
269 return Some(if n_segments > 1 {
270 ResolveValueResult::Partial(TypeNs::SelfType(impl_), 1)
272 ResolveValueResult::ValueNs(ValueNs::ImplSelf(impl_))
276 // bare `Self` doesn't work in the value namespace in a struct/enum definition
277 Scope::AdtScope(_) if n_segments == 1 => continue,
278 Scope::AdtScope(adt) => {
279 if first_name == &name![Self] {
280 let ty = TypeNs::AdtSelfType(*adt);
281 return Some(ResolveValueResult::Partial(ty, 1));
285 Scope::BlockScope(m) => {
286 if let Some(def) = m.resolve_path_in_value_ns(db, path) {
293 if let res @ Some(_) = self.module_scope.resolve_path_in_value_ns(db, path) {
297 // If a path of the shape `u16::from_le_bytes` failed to resolve at all, then we fall back
298 // to resolving to the primitive type, to allow this to still work in the presence of
300 if path.kind == PathKind::Plain && path.segments().len() > 1 {
301 if let Some(builtin) = BuiltinType::by_name(&path.segments()[0]) {
302 return Some(ResolveValueResult::Partial(TypeNs::BuiltinType(builtin), 1));
309 pub fn resolve_path_in_value_ns_fully(
311 db: &dyn DefDatabase,
313 ) -> Option<ValueNs> {
314 match self.resolve_path_in_value_ns(db, path)? {
315 ResolveValueResult::ValueNs(it) => Some(it),
316 ResolveValueResult::Partial(..) => None,
320 pub fn resolve_path_as_macro(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<MacroId> {
321 let (item_map, module) = self.item_scope();
322 item_map.resolve_path(db, module, path, BuiltinShadowMode::Other).0.take_macros()
325 /// Returns a set of names available in the current scope.
327 /// Note that this is a somewhat fuzzy concept -- internally, the compiler
328 /// doesn't necessary follow a strict scoping discipline. Rather, it just
329 /// tells for each ident what it resolves to.
331 /// A good example is something like `str::from_utf8`. From scopes point of
332 /// view, this code is erroneous -- both `str` module and `str` type occupy
333 /// the same type namespace.
335 /// We don't try to model that super-correctly -- this functionality is
336 /// primarily exposed for completions.
338 /// Note that in Rust one name can be bound to several items:
341 /// macro_rules! t { () => (()) }
343 /// const t: t = t!()
346 /// That's why we return a multimap.
348 /// The shadowing is accounted for: in
358 /// there will be only one entry for `x` in the result.
360 /// The result is ordered *roughly* from the innermost scope to the
361 /// outermost: when the name is introduced in two namespaces in two scopes,
362 /// we use the position of the first scope.
363 pub fn names_in_scope(
365 db: &dyn DefDatabase,
366 ) -> FxIndexMap<Name, SmallVec<[ScopeDef; 1]>> {
367 let mut res = ScopeNames::default();
368 for scope in self.scopes() {
369 scope.process_names(&mut res, db);
371 let ModuleItemMap { ref def_map, module_id } = self.module_scope;
372 // FIXME: should we provide `self` here?
374 // Name::self_param(),
375 // PerNs::types(Resolution::Def {
376 // def: m.module.into(),
379 def_map[module_id].scope.entries().for_each(|(name, def)| {
380 res.add_per_ns(name, def);
382 def_map[module_id].scope.legacy_macros().for_each(|(name, macs)| {
383 macs.iter().for_each(|&mac| {
384 res.add(name, ScopeDef::ModuleDef(ModuleDefId::MacroId(MacroId::from(mac))));
387 def_map.extern_prelude().for_each(|(name, &def)| {
388 res.add(name, ScopeDef::ModuleDef(ModuleDefId::ModuleId(def)));
390 BUILTIN_SCOPE.iter().for_each(|(name, &def)| {
391 res.add_per_ns(name, def);
393 if let Some(prelude) = def_map.prelude() {
394 let prelude_def_map = prelude.def_map(db);
395 for (name, def) in prelude_def_map[prelude.local_id].scope.entries() {
396 res.add_per_ns(name, def)
402 pub fn traits_in_scope(&self, db: &dyn DefDatabase) -> FxHashSet<TraitId> {
403 let mut traits = FxHashSet::default();
405 for scope in self.scopes() {
407 Scope::BlockScope(m) => traits.extend(m.def_map[m.module_id].scope.traits()),
408 &Scope::ImplDefScope(impl_) => {
409 if let Some(target_trait) = &db.impl_data(impl_).target_trait {
410 if let Some(TypeNs::TraitId(trait_)) =
411 self.resolve_path_in_type_ns_fully(db, target_trait.path.mod_path())
413 traits.insert(trait_);
421 // Fill in the prelude traits
422 if let Some(prelude) = self.module_scope.def_map.prelude() {
423 let prelude_def_map = prelude.def_map(db);
424 traits.extend(prelude_def_map[prelude.local_id].scope.traits());
426 // Fill in module visible traits
427 traits.extend(self.module_scope.def_map[self.module_scope.module_id].scope.traits());
431 pub fn module(&self) -> ModuleId {
432 let (def_map, local_id) = self.item_scope();
433 def_map.module_id(local_id)
436 pub fn krate(&self) -> CrateId {
437 self.module_scope.def_map.krate()
440 pub fn def_map(&self) -> &DefMap {
444 pub fn where_predicates_in_scope(
446 ) -> impl Iterator<Item = &crate::generics::WherePredicate> {
448 .filter_map(|scope| match scope {
449 Scope::GenericParams { params, .. } => Some(params),
452 .flat_map(|params| params.where_predicates.iter())
455 pub fn generic_def(&self) -> Option<GenericDefId> {
456 self.scopes().find_map(|scope| match scope {
457 Scope::GenericParams { def, .. } => Some(*def),
462 pub fn body_owner(&self) -> Option<DefWithBodyId> {
463 self.scopes().find_map(|scope| match scope {
464 Scope::ExprScope(it) => Some(it.owner),
471 fn scopes(&self) -> impl Iterator<Item = &Scope> {
472 self.scopes.iter().rev()
475 fn resolve_module_path(
477 db: &dyn DefDatabase,
479 shadow: BuiltinShadowMode,
481 let (item_map, module) = self.item_scope();
482 let (module_res, segment_index) = item_map.resolve_path(db, module, path, shadow);
483 if segment_index.is_some() {
484 return PerNs::none();
489 /// The innermost block scope that contains items or the module scope that contains this resolver.
490 fn item_scope(&self) -> (&DefMap, LocalModuleId) {
492 .find_map(|scope| match scope {
493 Scope::BlockScope(m) => Some((&*m.def_map, m.module_id)),
496 .unwrap_or((&self.module_scope.def_map, self.module_scope.module_id))
500 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
502 ModuleDef(ModuleDefId),
504 ImplSelfType(ImplId),
506 GenericParam(GenericParamId),
512 fn process_names(&self, acc: &mut ScopeNames, db: &dyn DefDatabase) {
514 Scope::BlockScope(m) => {
515 m.def_map[m.module_id].scope.entries().for_each(|(name, def)| {
516 acc.add_per_ns(name, def);
518 m.def_map[m.module_id].scope.legacy_macros().for_each(|(name, macs)| {
519 macs.iter().for_each(|&mac| {
522 ScopeDef::ModuleDef(ModuleDefId::MacroId(MacroId::from(mac))),
527 Scope::GenericParams { params, def: parent } => {
528 let parent = *parent;
529 for (local_id, param) in params.type_or_consts.iter() {
530 if let Some(name) = ¶m.name() {
531 let id = TypeOrConstParamId { parent, local_id };
532 let data = &db.generic_params(parent).type_or_consts[local_id];
535 ScopeDef::GenericParam(match data {
536 TypeOrConstParamData::TypeParamData(_) => {
537 GenericParamId::TypeParamId(TypeParamId::from_unchecked(id))
539 TypeOrConstParamData::ConstParamData(_) => {
540 GenericParamId::ConstParamId(ConstParamId::from_unchecked(id))
546 for (local_id, param) in params.lifetimes.iter() {
547 let id = LifetimeParamId { parent, local_id };
548 acc.add(¶m.name, ScopeDef::GenericParam(id.into()))
551 Scope::ImplDefScope(i) => {
552 acc.add(&name![Self], ScopeDef::ImplSelfType(*i));
554 Scope::AdtScope(i) => {
555 acc.add(&name![Self], ScopeDef::AdtSelfType(*i));
557 Scope::ExprScope(scope) => {
558 if let Some((label, name)) = scope.expr_scopes.label(scope.scope_id) {
559 acc.add(&name, ScopeDef::Label(label))
561 scope.expr_scopes.entries(scope.scope_id).iter().for_each(|e| {
562 acc.add_local(e.name(), e.pat());
569 // needs arbitrary_self_types to be a method... or maybe move to the def?
570 pub fn resolver_for_expr(db: &dyn DefDatabase, owner: DefWithBodyId, expr_id: ExprId) -> Resolver {
571 let scopes = db.expr_scopes(owner);
572 resolver_for_scope(db, owner, scopes.scope_for(expr_id))
575 pub fn resolver_for_scope(
576 db: &dyn DefDatabase,
577 owner: DefWithBodyId,
578 scope_id: Option<ScopeId>,
580 let mut r = owner.resolver(db);
581 let scopes = db.expr_scopes(owner);
582 let scope_chain = scopes.scope_chain(scope_id).collect::<Vec<_>>();
583 r.scopes.reserve(scope_chain.len());
585 for scope in scope_chain.into_iter().rev() {
586 if let Some(block) = scopes.block(scope) {
587 if let Some(def_map) = db.block_def_map(block) {
588 let root = def_map.root();
589 r = r.push_block_scope(def_map, root);
590 // FIXME: This adds as many module scopes as there are blocks, but resolving in each
591 // already traverses all parents, so this is O(n²). I think we could only store the
592 // innermost module scope instead?
596 r = r.push_expr_scope(owner, Arc::clone(&scopes), scope);
602 fn push_scope(mut self, scope: Scope) -> Resolver {
603 self.scopes.push(scope);
607 fn push_generic_params_scope(self, db: &dyn DefDatabase, def: GenericDefId) -> Resolver {
608 let params = db.generic_params(def);
609 self.push_scope(Scope::GenericParams { def, params })
612 fn push_impl_def_scope(self, impl_def: ImplId) -> Resolver {
613 self.push_scope(Scope::ImplDefScope(impl_def))
616 fn push_block_scope(self, def_map: Arc<DefMap>, module_id: LocalModuleId) -> Resolver {
617 self.push_scope(Scope::BlockScope(ModuleItemMap { def_map, module_id }))
622 owner: DefWithBodyId,
623 expr_scopes: Arc<ExprScopes>,
626 self.push_scope(Scope::ExprScope(ExprScope { owner, expr_scopes, scope_id }))
631 fn resolve_path_in_value_ns(
633 db: &dyn DefDatabase,
635 ) -> Option<ResolveValueResult> {
636 let (module_def, idx) =
637 self.def_map.resolve_path_locally(db, self.module_id, path, BuiltinShadowMode::Other);
640 let value = to_value_ns(module_def)?;
641 Some(ResolveValueResult::ValueNs(value))
644 let ty = match module_def.take_types()? {
645 ModuleDefId::AdtId(it) => TypeNs::AdtId(it),
646 ModuleDefId::TraitId(it) => TypeNs::TraitId(it),
647 ModuleDefId::TypeAliasId(it) => TypeNs::TypeAliasId(it),
648 ModuleDefId::BuiltinType(it) => TypeNs::BuiltinType(it),
650 ModuleDefId::ModuleId(_)
651 | ModuleDefId::FunctionId(_)
652 | ModuleDefId::EnumVariantId(_)
653 | ModuleDefId::ConstId(_)
654 | ModuleDefId::MacroId(_)
655 | ModuleDefId::StaticId(_) => return None,
657 Some(ResolveValueResult::Partial(ty, idx))
662 fn resolve_path_in_type_ns(
664 db: &dyn DefDatabase,
666 ) -> Option<(TypeNs, Option<usize>)> {
667 let (module_def, idx) =
668 self.def_map.resolve_path_locally(db, self.module_id, path, BuiltinShadowMode::Other);
669 let res = to_type_ns(module_def)?;
674 fn to_value_ns(per_ns: PerNs) -> Option<ValueNs> {
675 let res = match per_ns.take_values()? {
676 ModuleDefId::FunctionId(it) => ValueNs::FunctionId(it),
677 ModuleDefId::AdtId(AdtId::StructId(it)) => ValueNs::StructId(it),
678 ModuleDefId::EnumVariantId(it) => ValueNs::EnumVariantId(it),
679 ModuleDefId::ConstId(it) => ValueNs::ConstId(it),
680 ModuleDefId::StaticId(it) => ValueNs::StaticId(it),
682 ModuleDefId::AdtId(AdtId::EnumId(_) | AdtId::UnionId(_))
683 | ModuleDefId::TraitId(_)
684 | ModuleDefId::TypeAliasId(_)
685 | ModuleDefId::BuiltinType(_)
686 | ModuleDefId::MacroId(_)
687 | ModuleDefId::ModuleId(_) => return None,
692 fn to_type_ns(per_ns: PerNs) -> Option<TypeNs> {
693 let res = match per_ns.take_types()? {
694 ModuleDefId::AdtId(it) => TypeNs::AdtId(it),
695 ModuleDefId::EnumVariantId(it) => TypeNs::EnumVariantId(it),
697 ModuleDefId::TypeAliasId(it) => TypeNs::TypeAliasId(it),
698 ModuleDefId::BuiltinType(it) => TypeNs::BuiltinType(it),
700 ModuleDefId::TraitId(it) => TypeNs::TraitId(it),
702 ModuleDefId::FunctionId(_)
703 | ModuleDefId::ConstId(_)
704 | ModuleDefId::MacroId(_)
705 | ModuleDefId::StaticId(_)
706 | ModuleDefId::ModuleId(_) => return None,
711 type FxIndexMap<K, V> = IndexMap<K, V, BuildHasherDefault<rustc_hash::FxHasher>>;
714 map: FxIndexMap<Name, SmallVec<[ScopeDef; 1]>>,
718 fn add(&mut self, name: &Name, def: ScopeDef) {
719 let set = self.map.entry(name.clone()).or_default();
720 if !set.contains(&def) {
724 fn add_per_ns(&mut self, name: &Name, def: PerNs) {
725 if let &Some((ty, _)) = &def.types {
726 self.add(name, ScopeDef::ModuleDef(ty))
728 if let &Some((def, _)) = &def.values {
729 self.add(name, ScopeDef::ModuleDef(def))
731 if let &Some((mac, _)) = &def.macros {
732 self.add(name, ScopeDef::ModuleDef(ModuleDefId::MacroId(mac)))
735 self.add(name, ScopeDef::Unknown)
738 fn add_local(&mut self, name: &Name, pat: PatId) {
739 let set = self.map.entry(name.clone()).or_default();
740 // XXX: hack, account for local (and only local) shadowing.
742 // This should be somewhat more principled and take namespaces into
743 // accounts, but, alas, scoping rules are a hoax. `str` type and `str`
744 // module can be both available in the same scope.
745 if set.iter().any(|it| matches!(it, &ScopeDef::Local(_))) {
746 cov_mark::hit!(shadowing_shows_single_completion);
749 set.push(ScopeDef::Local(pat))
753 pub trait HasResolver: Copy {
754 /// Builds a resolver for type references inside this def.
755 fn resolver(self, db: &dyn DefDatabase) -> Resolver;
758 impl HasResolver for ModuleId {
759 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
760 let mut def_map = self.def_map(db);
761 let mut modules: SmallVec<[_; 1]> = smallvec![];
762 let mut module_id = self.local_id;
763 while let Some(parent) = def_map.parent() {
764 modules.push((def_map, module_id));
765 def_map = parent.def_map(db);
766 module_id = parent.local_id;
768 let mut resolver = Resolver {
769 scopes: Vec::with_capacity(modules.len()),
770 module_scope: ModuleItemMap { def_map, module_id },
772 for (def_map, module) in modules.into_iter().rev() {
773 resolver = resolver.push_block_scope(def_map, module);
779 impl HasResolver for TraitId {
780 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
781 self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
785 impl<T: Into<AdtId> + Copy> HasResolver for T {
786 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
787 let def = self.into();
790 .push_generic_params_scope(db, def.into())
791 .push_scope(Scope::AdtScope(def))
795 impl HasResolver for FunctionId {
796 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
797 self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
801 impl HasResolver for ConstId {
802 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
803 self.lookup(db).container.resolver(db)
807 impl HasResolver for StaticId {
808 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
809 self.lookup(db).container.resolver(db)
813 impl HasResolver for TypeAliasId {
814 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
815 self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
819 impl HasResolver for ImplId {
820 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
824 .push_generic_params_scope(db, self.into())
825 .push_impl_def_scope(self)
829 impl HasResolver for ExternBlockId {
830 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
832 self.lookup(db).container.resolver(db)
836 impl HasResolver for DefWithBodyId {
837 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
839 DefWithBodyId::ConstId(c) => c.resolver(db),
840 DefWithBodyId::FunctionId(f) => f.resolver(db),
841 DefWithBodyId::StaticId(s) => s.resolver(db),
846 impl HasResolver for ItemContainerId {
847 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
849 ItemContainerId::ModuleId(it) => it.resolver(db),
850 ItemContainerId::TraitId(it) => it.resolver(db),
851 ItemContainerId::ImplId(it) => it.resolver(db),
852 ItemContainerId::ExternBlockId(it) => it.resolver(db),
857 impl HasResolver for GenericDefId {
858 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
860 GenericDefId::FunctionId(inner) => inner.resolver(db),
861 GenericDefId::AdtId(adt) => adt.resolver(db),
862 GenericDefId::TraitId(inner) => inner.resolver(db),
863 GenericDefId::TypeAliasId(inner) => inner.resolver(db),
864 GenericDefId::ImplId(inner) => inner.resolver(db),
865 GenericDefId::EnumVariantId(inner) => inner.parent.resolver(db),
866 GenericDefId::ConstId(inner) => inner.resolver(db),
871 impl HasResolver for VariantId {
872 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
874 VariantId::EnumVariantId(it) => it.parent.resolver(db),
875 VariantId::StructId(it) => it.resolver(db),
876 VariantId::UnionId(it) => it.resolver(db),
881 impl HasResolver for MacroId {
882 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
884 MacroId::Macro2Id(it) => it.resolver(db),
885 MacroId::MacroRulesId(it) => it.resolver(db),
886 MacroId::ProcMacroId(it) => it.resolver(db),
891 impl HasResolver for Macro2Id {
892 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
893 self.lookup(db).container.resolver(db)
897 impl HasResolver for ProcMacroId {
898 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
899 self.lookup(db).container.resolver(db)
903 impl HasResolver for MacroRulesId {
904 fn resolver(self, db: &dyn DefDatabase) -> Resolver {
905 self.lookup(db).container.resolver(db)