mirror of
https://github.com/rust-lang/rust-analyzer
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3f42b2e837
I.e. - `Self(x)` or `Self` in tuple/unit struct impls - `Self::Variant(x)` or `Self::Variant` in enum impls - the same in patterns Fixes #4454.
715 lines
24 KiB
Rust
715 lines
24 KiB
Rust
//! Name resolution façade.
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use std::sync::Arc;
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use hir_expand::{
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name::{name, Name},
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MacroDefId,
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};
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use ra_db::CrateId;
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use rustc_hash::FxHashSet;
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use crate::{
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body::scope::{ExprScopes, ScopeId},
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body::Body,
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builtin_type::BuiltinType,
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db::DefDatabase,
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expr::{ExprId, PatId},
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generics::GenericParams,
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item_scope::{BuiltinShadowMode, BUILTIN_SCOPE},
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nameres::CrateDefMap,
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path::{ModPath, PathKind},
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per_ns::PerNs,
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visibility::{RawVisibility, Visibility},
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AdtId, AssocContainerId, ConstId, ContainerId, DefWithBodyId, EnumId, EnumVariantId,
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FunctionId, GenericDefId, HasModule, ImplId, LocalModuleId, Lookup, ModuleDefId, ModuleId,
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StaticId, StructId, TraitId, TypeAliasId, TypeParamId, VariantId,
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};
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#[derive(Debug, Clone, Default)]
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pub struct Resolver {
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// FIXME: all usages generally call `.rev`, so maybe reverse once in consturciton?
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scopes: Vec<Scope>,
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}
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// FIXME how to store these best
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#[derive(Debug, Clone)]
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struct ModuleItemMap {
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crate_def_map: Arc<CrateDefMap>,
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module_id: LocalModuleId,
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}
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#[derive(Debug, Clone)]
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struct ExprScope {
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owner: DefWithBodyId,
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expr_scopes: Arc<ExprScopes>,
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scope_id: ScopeId,
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}
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#[derive(Debug, Clone)]
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enum Scope {
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/// All the items and imported names of a module
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ModuleScope(ModuleItemMap),
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/// Brings the generic parameters of an item into scope
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GenericParams { def: GenericDefId, params: Arc<GenericParams> },
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/// Brings `Self` in `impl` block into scope
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ImplDefScope(ImplId),
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/// Brings `Self` in enum, struct and union definitions into scope
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AdtScope(AdtId),
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/// Local bindings
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ExprScope(ExprScope),
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/// Temporary hack to support local items.
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LocalItemsScope(Arc<Body>),
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}
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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pub enum TypeNs {
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SelfType(ImplId),
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GenericParam(TypeParamId),
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AdtId(AdtId),
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AdtSelfType(AdtId),
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// Yup, enum variants are added to the types ns, but any usage of variant as
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// type is an error.
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EnumVariantId(EnumVariantId),
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TypeAliasId(TypeAliasId),
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BuiltinType(BuiltinType),
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TraitId(TraitId),
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// Module belong to type ns, but the resolver is used when all module paths
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// are fully resolved.
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// ModuleId(ModuleId)
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}
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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pub enum ResolveValueResult {
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ValueNs(ValueNs),
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Partial(TypeNs, usize),
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}
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#[derive(Debug, Clone, PartialEq, Eq, Hash)]
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pub enum ValueNs {
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ImplSelf(ImplId),
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LocalBinding(PatId),
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FunctionId(FunctionId),
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ConstId(ConstId),
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StaticId(StaticId),
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StructId(StructId),
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EnumVariantId(EnumVariantId),
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}
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impl Resolver {
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/// Resolve known trait from std, like `std::futures::Future`
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pub fn resolve_known_trait(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<TraitId> {
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let res = self.resolve_module_path(db, path, BuiltinShadowMode::Other).take_types()?;
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match res {
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ModuleDefId::TraitId(it) => Some(it),
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_ => None,
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}
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}
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/// Resolve known struct from std, like `std::boxed::Box`
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pub fn resolve_known_struct(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<StructId> {
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let res = self.resolve_module_path(db, path, BuiltinShadowMode::Other).take_types()?;
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match res {
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ModuleDefId::AdtId(AdtId::StructId(it)) => Some(it),
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_ => None,
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}
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}
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/// Resolve known enum from std, like `std::result::Result`
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pub fn resolve_known_enum(&self, db: &dyn DefDatabase, path: &ModPath) -> Option<EnumId> {
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let res = self.resolve_module_path(db, path, BuiltinShadowMode::Other).take_types()?;
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match res {
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ModuleDefId::AdtId(AdtId::EnumId(it)) => Some(it),
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_ => None,
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}
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}
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fn resolve_module_path(
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&self,
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db: &dyn DefDatabase,
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path: &ModPath,
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shadow: BuiltinShadowMode,
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) -> PerNs {
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let (item_map, module) = match self.module_scope() {
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Some(it) => it,
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None => return PerNs::none(),
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};
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let (module_res, segment_index) = item_map.resolve_path(db, module, &path, shadow);
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if segment_index.is_some() {
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return PerNs::none();
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}
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module_res
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}
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pub fn resolve_module_path_in_items(&self, db: &dyn DefDatabase, path: &ModPath) -> PerNs {
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self.resolve_module_path(db, path, BuiltinShadowMode::Module)
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}
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pub fn resolve_path_in_type_ns(
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&self,
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db: &dyn DefDatabase,
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path: &ModPath,
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) -> Option<(TypeNs, Option<usize>)> {
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let first_name = path.segments.first()?;
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let skip_to_mod = path.kind != PathKind::Plain;
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for scope in self.scopes.iter().rev() {
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match scope {
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Scope::ExprScope(_) => continue,
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Scope::GenericParams { .. }
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| Scope::ImplDefScope(_)
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| Scope::LocalItemsScope(_)
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if skip_to_mod =>
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{
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continue
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}
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Scope::GenericParams { params, def } => {
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if let Some(local_id) = params.find_by_name(first_name) {
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let idx = if path.segments.len() == 1 { None } else { Some(1) };
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return Some((
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TypeNs::GenericParam(TypeParamId { local_id, parent: *def }),
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idx,
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));
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}
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}
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Scope::ImplDefScope(impl_) => {
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if first_name == &name![Self] {
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let idx = if path.segments.len() == 1 { None } else { Some(1) };
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return Some((TypeNs::SelfType(*impl_), idx));
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}
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}
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Scope::AdtScope(adt) => {
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if first_name == &name![Self] {
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let idx = if path.segments.len() == 1 { None } else { Some(1) };
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return Some((TypeNs::AdtSelfType(*adt), idx));
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}
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}
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Scope::ModuleScope(m) => {
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let (module_def, idx) = m.crate_def_map.resolve_path(
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db,
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m.module_id,
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&path,
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BuiltinShadowMode::Other,
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);
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let res = to_type_ns(module_def)?;
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return Some((res, idx));
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}
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Scope::LocalItemsScope(body) => {
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let def = body.item_scope.get(first_name);
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if let Some(res) = to_type_ns(def) {
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return Some((res, None));
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}
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}
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}
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}
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return None;
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fn to_type_ns(per_ns: PerNs) -> Option<TypeNs> {
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let res = match per_ns.take_types()? {
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ModuleDefId::AdtId(it) => TypeNs::AdtId(it),
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ModuleDefId::EnumVariantId(it) => TypeNs::EnumVariantId(it),
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ModuleDefId::TypeAliasId(it) => TypeNs::TypeAliasId(it),
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ModuleDefId::BuiltinType(it) => TypeNs::BuiltinType(it),
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ModuleDefId::TraitId(it) => TypeNs::TraitId(it),
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ModuleDefId::FunctionId(_)
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| ModuleDefId::ConstId(_)
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| ModuleDefId::StaticId(_)
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| ModuleDefId::ModuleId(_) => return None,
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};
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Some(res)
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}
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}
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pub fn resolve_path_in_type_ns_fully(
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&self,
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db: &dyn DefDatabase,
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path: &ModPath,
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) -> Option<TypeNs> {
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let (res, unresolved) = self.resolve_path_in_type_ns(db, path)?;
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if unresolved.is_some() {
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return None;
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}
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Some(res)
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}
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pub fn resolve_visibility(
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&self,
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db: &dyn DefDatabase,
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visibility: &RawVisibility,
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) -> Option<Visibility> {
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match visibility {
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RawVisibility::Module(_) => {
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let (item_map, module) = match self.module_scope() {
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Some(it) => it,
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None => return None,
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};
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item_map.resolve_visibility(db, module, visibility)
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}
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RawVisibility::Public => Some(Visibility::Public),
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}
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}
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pub fn resolve_path_in_value_ns(
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&self,
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db: &dyn DefDatabase,
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path: &ModPath,
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) -> Option<ResolveValueResult> {
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let n_segments = path.segments.len();
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let tmp = name![self];
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let first_name = if path.is_self() { &tmp } else { &path.segments.first()? };
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let skip_to_mod = path.kind != PathKind::Plain && !path.is_self();
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for scope in self.scopes.iter().rev() {
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match scope {
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Scope::AdtScope(_)
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| Scope::ExprScope(_)
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| Scope::GenericParams { .. }
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| Scope::ImplDefScope(_)
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| Scope::LocalItemsScope(_)
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if skip_to_mod =>
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{
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continue
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}
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Scope::ExprScope(scope) if n_segments <= 1 => {
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let entry = scope
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.expr_scopes
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.entries(scope.scope_id)
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.iter()
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.find(|entry| entry.name() == first_name);
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if let Some(e) = entry {
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return Some(ResolveValueResult::ValueNs(ValueNs::LocalBinding(e.pat())));
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}
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}
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Scope::ExprScope(_) => continue,
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Scope::GenericParams { params, def } if n_segments > 1 => {
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if let Some(local_id) = params.find_by_name(first_name) {
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let ty = TypeNs::GenericParam(TypeParamId { local_id, parent: *def });
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return Some(ResolveValueResult::Partial(ty, 1));
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}
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}
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Scope::GenericParams { .. } => continue,
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Scope::ImplDefScope(impl_) => {
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if first_name == &name![Self] {
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if n_segments > 1 {
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let ty = TypeNs::SelfType(*impl_);
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return Some(ResolveValueResult::Partial(ty, 1));
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} else {
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return Some(ResolveValueResult::ValueNs(ValueNs::ImplSelf(*impl_)));
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}
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}
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}
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Scope::AdtScope(adt) => {
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if n_segments == 1 {
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// bare `Self` doesn't work in the value namespace in a struct/enum definition
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continue;
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}
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if first_name == &name![Self] {
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let ty = TypeNs::AdtSelfType(*adt);
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return Some(ResolveValueResult::Partial(ty, 1));
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}
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}
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Scope::ModuleScope(m) => {
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let (module_def, idx) = m.crate_def_map.resolve_path(
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db,
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m.module_id,
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&path,
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BuiltinShadowMode::Other,
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);
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return match idx {
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None => {
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let value = to_value_ns(module_def)?;
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Some(ResolveValueResult::ValueNs(value))
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}
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Some(idx) => {
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let ty = match module_def.take_types()? {
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ModuleDefId::AdtId(it) => TypeNs::AdtId(it),
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ModuleDefId::TraitId(it) => TypeNs::TraitId(it),
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ModuleDefId::TypeAliasId(it) => TypeNs::TypeAliasId(it),
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ModuleDefId::BuiltinType(it) => TypeNs::BuiltinType(it),
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ModuleDefId::ModuleId(_)
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| ModuleDefId::FunctionId(_)
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| ModuleDefId::EnumVariantId(_)
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| ModuleDefId::ConstId(_)
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| ModuleDefId::StaticId(_) => return None,
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};
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Some(ResolveValueResult::Partial(ty, idx))
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}
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};
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}
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Scope::LocalItemsScope(body) => {
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// we don't bother looking in the builtin scope here because there are no builtin values
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let def = to_value_ns(body.item_scope.get(first_name));
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if let Some(res) = def {
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return Some(ResolveValueResult::ValueNs(res));
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}
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}
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}
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}
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return None;
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fn to_value_ns(per_ns: PerNs) -> Option<ValueNs> {
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let res = match per_ns.take_values()? {
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ModuleDefId::FunctionId(it) => ValueNs::FunctionId(it),
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ModuleDefId::AdtId(AdtId::StructId(it)) => ValueNs::StructId(it),
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ModuleDefId::EnumVariantId(it) => ValueNs::EnumVariantId(it),
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ModuleDefId::ConstId(it) => ValueNs::ConstId(it),
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ModuleDefId::StaticId(it) => ValueNs::StaticId(it),
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ModuleDefId::AdtId(AdtId::EnumId(_))
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| ModuleDefId::AdtId(AdtId::UnionId(_))
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| ModuleDefId::TraitId(_)
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| ModuleDefId::TypeAliasId(_)
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| ModuleDefId::BuiltinType(_)
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| ModuleDefId::ModuleId(_) => return None,
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};
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Some(res)
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}
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}
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pub fn resolve_path_in_value_ns_fully(
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&self,
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db: &dyn DefDatabase,
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path: &ModPath,
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) -> Option<ValueNs> {
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match self.resolve_path_in_value_ns(db, path)? {
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ResolveValueResult::ValueNs(it) => Some(it),
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ResolveValueResult::Partial(..) => None,
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}
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}
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pub fn resolve_path_as_macro(
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&self,
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db: &dyn DefDatabase,
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path: &ModPath,
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) -> Option<MacroDefId> {
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// Search item scope legacy macro first
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if let Some(def) = self.resolve_local_macro_def(path) {
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return Some(def);
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}
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let (item_map, module) = self.module_scope()?;
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item_map.resolve_path(db, module, &path, BuiltinShadowMode::Other).0.take_macros()
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}
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pub fn process_all_names(&self, db: &dyn DefDatabase, f: &mut dyn FnMut(Name, ScopeDef)) {
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for scope in self.scopes.iter().rev() {
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scope.process_names(db, f);
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}
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}
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pub fn traits_in_scope(&self, db: &dyn DefDatabase) -> FxHashSet<TraitId> {
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let mut traits = FxHashSet::default();
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for scope in &self.scopes {
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if let Scope::ModuleScope(m) = scope {
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if let Some(prelude) = m.crate_def_map.prelude {
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let prelude_def_map = db.crate_def_map(prelude.krate);
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traits.extend(prelude_def_map[prelude.local_id].scope.traits());
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}
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traits.extend(m.crate_def_map[m.module_id].scope.traits());
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}
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}
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traits
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}
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fn module_scope(&self) -> Option<(&CrateDefMap, LocalModuleId)> {
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self.scopes.iter().rev().find_map(|scope| match scope {
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Scope::ModuleScope(m) => Some((&*m.crate_def_map, m.module_id)),
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_ => None,
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})
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}
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fn resolve_local_macro_def(&self, path: &ModPath) -> Option<MacroDefId> {
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let name = path.as_ident()?;
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self.scopes.iter().rev().find_map(|scope| {
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if let Scope::LocalItemsScope(body) = scope {
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return body.item_scope.get_legacy_macro(name);
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}
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None
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})
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}
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pub fn module(&self) -> Option<ModuleId> {
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let (def_map, local_id) = self.module_scope()?;
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Some(ModuleId { krate: def_map.krate, local_id })
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}
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pub fn krate(&self) -> Option<CrateId> {
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self.module_scope().map(|t| t.0.krate)
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}
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pub fn where_predicates_in_scope<'a>(
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&'a self,
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) -> impl Iterator<Item = &'a crate::generics::WherePredicate> + 'a {
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self.scopes
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.iter()
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.rev()
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.filter_map(|scope| match scope {
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Scope::GenericParams { params, .. } => Some(params),
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_ => None,
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})
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.flat_map(|params| params.where_predicates.iter())
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}
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pub fn generic_def(&self) -> Option<GenericDefId> {
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self.scopes.iter().rev().find_map(|scope| match scope {
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Scope::GenericParams { def, .. } => Some(*def),
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_ => None,
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})
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}
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pub fn body_owner(&self) -> Option<DefWithBodyId> {
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self.scopes.iter().rev().find_map(|scope| match scope {
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Scope::ExprScope(it) => Some(it.owner),
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_ => None,
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})
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}
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}
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pub enum ScopeDef {
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PerNs(PerNs),
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ImplSelfType(ImplId),
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AdtSelfType(AdtId),
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GenericParam(TypeParamId),
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Local(PatId),
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}
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impl Scope {
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fn process_names(&self, db: &dyn DefDatabase, f: &mut dyn FnMut(Name, ScopeDef)) {
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match self {
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Scope::ModuleScope(m) => {
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// FIXME: should we provide `self` here?
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// f(
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// Name::self_param(),
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// PerNs::types(Resolution::Def {
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// def: m.module.into(),
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// }),
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// );
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m.crate_def_map[m.module_id].scope.entries().for_each(|(name, def)| {
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f(name.clone(), ScopeDef::PerNs(def));
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});
|
|
m.crate_def_map[m.module_id].scope.legacy_macros().for_each(|(name, macro_)| {
|
|
f(name.clone(), ScopeDef::PerNs(PerNs::macros(macro_, Visibility::Public)));
|
|
});
|
|
m.crate_def_map.extern_prelude.iter().for_each(|(name, &def)| {
|
|
f(name.clone(), ScopeDef::PerNs(PerNs::types(def, Visibility::Public)));
|
|
});
|
|
BUILTIN_SCOPE.iter().for_each(|(name, &def)| {
|
|
f(name.clone(), ScopeDef::PerNs(def));
|
|
});
|
|
if let Some(prelude) = m.crate_def_map.prelude {
|
|
let prelude_def_map = db.crate_def_map(prelude.krate);
|
|
prelude_def_map[prelude.local_id].scope.entries().for_each(|(name, def)| {
|
|
f(name.clone(), ScopeDef::PerNs(def));
|
|
});
|
|
}
|
|
}
|
|
Scope::LocalItemsScope(body) => {
|
|
body.item_scope.entries_without_primitives().for_each(|(name, def)| {
|
|
f(name.clone(), ScopeDef::PerNs(def));
|
|
})
|
|
}
|
|
Scope::GenericParams { params, def } => {
|
|
for (local_id, param) in params.types.iter() {
|
|
if let Some(name) = ¶m.name {
|
|
f(
|
|
name.clone(),
|
|
ScopeDef::GenericParam(TypeParamId { local_id, parent: *def }),
|
|
)
|
|
}
|
|
}
|
|
}
|
|
Scope::ImplDefScope(i) => {
|
|
f(name![Self], ScopeDef::ImplSelfType(*i));
|
|
}
|
|
Scope::AdtScope(i) => {
|
|
f(name![Self], ScopeDef::AdtSelfType(*i));
|
|
}
|
|
Scope::ExprScope(scope) => {
|
|
scope.expr_scopes.entries(scope.scope_id).iter().for_each(|e| {
|
|
f(e.name().clone(), ScopeDef::Local(e.pat()));
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// needs arbitrary_self_types to be a method... or maybe move to the def?
|
|
pub fn resolver_for_expr(db: &dyn DefDatabase, owner: DefWithBodyId, expr_id: ExprId) -> Resolver {
|
|
let scopes = db.expr_scopes(owner);
|
|
resolver_for_scope(db, owner, scopes.scope_for(expr_id))
|
|
}
|
|
|
|
pub fn resolver_for_scope(
|
|
db: &dyn DefDatabase,
|
|
owner: DefWithBodyId,
|
|
scope_id: Option<ScopeId>,
|
|
) -> Resolver {
|
|
let mut r = owner.resolver(db);
|
|
r = r.push_local_items_scope(db.body(owner));
|
|
let scopes = db.expr_scopes(owner);
|
|
let scope_chain = scopes.scope_chain(scope_id).collect::<Vec<_>>();
|
|
for scope in scope_chain.into_iter().rev() {
|
|
r = r.push_expr_scope(owner, Arc::clone(&scopes), scope);
|
|
}
|
|
r
|
|
}
|
|
|
|
impl Resolver {
|
|
fn push_scope(mut self, scope: Scope) -> Resolver {
|
|
self.scopes.push(scope);
|
|
self
|
|
}
|
|
|
|
fn push_generic_params_scope(self, db: &dyn DefDatabase, def: GenericDefId) -> Resolver {
|
|
let params = db.generic_params(def);
|
|
self.push_scope(Scope::GenericParams { def, params })
|
|
}
|
|
|
|
fn push_impl_def_scope(self, impl_def: ImplId) -> Resolver {
|
|
self.push_scope(Scope::ImplDefScope(impl_def))
|
|
}
|
|
|
|
fn push_module_scope(
|
|
self,
|
|
crate_def_map: Arc<CrateDefMap>,
|
|
module_id: LocalModuleId,
|
|
) -> Resolver {
|
|
self.push_scope(Scope::ModuleScope(ModuleItemMap { crate_def_map, module_id }))
|
|
}
|
|
|
|
fn push_local_items_scope(self, body: Arc<Body>) -> Resolver {
|
|
self.push_scope(Scope::LocalItemsScope(body))
|
|
}
|
|
|
|
fn push_expr_scope(
|
|
self,
|
|
owner: DefWithBodyId,
|
|
expr_scopes: Arc<ExprScopes>,
|
|
scope_id: ScopeId,
|
|
) -> Resolver {
|
|
self.push_scope(Scope::ExprScope(ExprScope { owner, expr_scopes, scope_id }))
|
|
}
|
|
}
|
|
|
|
pub trait HasResolver: Copy {
|
|
/// Builds a resolver for type references inside this def.
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver;
|
|
}
|
|
|
|
impl HasResolver for ModuleId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
let def_map = db.crate_def_map(self.krate);
|
|
Resolver::default().push_module_scope(def_map, self.local_id)
|
|
}
|
|
}
|
|
|
|
impl HasResolver for TraitId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
|
|
}
|
|
}
|
|
|
|
impl<T: Into<AdtId> + Copy> HasResolver for T {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
let def = self.into();
|
|
def.module(db)
|
|
.resolver(db)
|
|
.push_generic_params_scope(db, def.into())
|
|
.push_scope(Scope::AdtScope(def))
|
|
}
|
|
}
|
|
|
|
impl HasResolver for FunctionId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
|
|
}
|
|
}
|
|
|
|
impl HasResolver for ConstId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
self.lookup(db).container.resolver(db)
|
|
}
|
|
}
|
|
|
|
impl HasResolver for StaticId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
self.lookup(db).container.resolver(db)
|
|
}
|
|
}
|
|
|
|
impl HasResolver for TypeAliasId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
|
|
}
|
|
}
|
|
|
|
impl HasResolver for ImplId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
self.lookup(db)
|
|
.container
|
|
.resolver(db)
|
|
.push_generic_params_scope(db, self.into())
|
|
.push_impl_def_scope(self)
|
|
}
|
|
}
|
|
|
|
impl HasResolver for DefWithBodyId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
match self {
|
|
DefWithBodyId::ConstId(c) => c.resolver(db),
|
|
DefWithBodyId::FunctionId(f) => f.resolver(db),
|
|
DefWithBodyId::StaticId(s) => s.resolver(db),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl HasResolver for ContainerId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
match self {
|
|
ContainerId::ModuleId(it) => it.resolver(db),
|
|
ContainerId::DefWithBodyId(it) => it.module(db).resolver(db),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl HasResolver for AssocContainerId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
match self {
|
|
AssocContainerId::ContainerId(it) => it.resolver(db),
|
|
AssocContainerId::TraitId(it) => it.resolver(db),
|
|
AssocContainerId::ImplId(it) => it.resolver(db),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl HasResolver for GenericDefId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
match self {
|
|
GenericDefId::FunctionId(inner) => inner.resolver(db),
|
|
GenericDefId::AdtId(adt) => adt.resolver(db),
|
|
GenericDefId::TraitId(inner) => inner.resolver(db),
|
|
GenericDefId::TypeAliasId(inner) => inner.resolver(db),
|
|
GenericDefId::ImplId(inner) => inner.resolver(db),
|
|
GenericDefId::EnumVariantId(inner) => inner.parent.resolver(db),
|
|
GenericDefId::ConstId(inner) => inner.resolver(db),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl HasResolver for VariantId {
|
|
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
|
|
match self {
|
|
VariantId::EnumVariantId(it) => it.parent.resolver(db),
|
|
VariantId::StructId(it) => it.resolver(db),
|
|
VariantId::UnionId(it) => it.resolver(db),
|
|
}
|
|
}
|
|
}
|