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Move ChildbySource and HasSource impls to their corresponding modules

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This commit is contained in:
Lukas Wirth 2024-02-10 12:09:12 +01:00
parent 1ef7a2329b
commit 74eb3ecbc1
7 changed files with 229 additions and 218 deletions
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74
crates/hir-def/src/child_by_source.rs
View File

@ -6,6 +6,7 @@
use either::Either;
use hir_expand::{attrs::collect_attrs, HirFileId};
use syntax::ast;
use crate::{
db::DefDatabase,
@ -17,8 +18,9 @@ use crate::{
item_tree::ItemTreeNode,
nameres::DefMap,
src::{HasChildSource, HasSource},
AdtId, AssocItemId, DefWithBodyId, EnumId, FieldId, ImplId, ItemTreeLoc, Lookup, MacroId,
ModuleDefId, ModuleId, TraitId, VariantId,
AdtId, AssocItemId, DefWithBodyId, EnumId, FieldId, GenericDefId, ImplId, ItemTreeLoc,
LifetimeParamId, Lookup, MacroId, ModuleDefId, ModuleId, TraitId, TypeOrConstParamId,
VariantId,
};
pub trait ChildBySource {
@ -59,14 +61,6 @@ impl ChildBySource for ImplId {
}
}
fn add_assoc_item(db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId, item: AssocItemId) {
match item {
AssocItemId::FunctionId(func) => insert_item_loc(db, res, file_id, func, keys::FUNCTION),
AssocItemId::ConstId(konst) => insert_item_loc(db, res, file_id, konst, keys::CONST),
AssocItemId::TypeAliasId(ty) => insert_item_loc(db, res, file_id, ty, keys::TYPE_ALIAS),
}
}
impl ChildBySource for ModuleId {
fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
let def_map = self.def_map(db);
@ -118,14 +112,6 @@ impl ChildBySource for ItemScope {
file_id: HirFileId,
item: ModuleDefId,
) {
macro_rules! insert {
($map:ident[$key:path].$insert:ident($id:ident)) => {{
let loc = $id.lookup(db);
if loc.id.file_id() == file_id {
$map[$key].$insert(loc.source(db).value, $id)
}
}};
}
match item {
ModuleDefId::FunctionId(id) => {
insert_item_loc(db, map, file_id, id, keys::FUNCTION)
@ -145,9 +131,13 @@ impl ChildBySource for ItemScope {
AdtId::EnumId(id) => insert_item_loc(db, map, file_id, id, keys::ENUM),
},
ModuleDefId::MacroId(id) => match id {
MacroId::Macro2Id(id) => insert!(map[keys::MACRO2].insert(id)),
MacroId::MacroRulesId(id) => insert!(map[keys::MACRO_RULES].insert(id)),
MacroId::ProcMacroId(id) => insert!(map[keys::PROC_MACRO].insert(id)),
MacroId::Macro2Id(id) => insert_item_loc(db, map, file_id, id, keys::MACRO2),
MacroId::MacroRulesId(id) => {
insert_item_loc(db, map, file_id, id, keys::MACRO_RULES)
}
MacroId::ProcMacroId(id) => {
insert_item_loc(db, map, file_id, id, keys::PROC_MACRO)
}
},
ModuleDefId::ModuleId(_)
| ModuleDefId::EnumVariantId(_)
@ -207,6 +197,40 @@ impl ChildBySource for DefWithBodyId {
}
}
impl ChildBySource for GenericDefId {
fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
let (gfile_id, generic_params_list) = self.file_id_and_params_of(db);
if gfile_id != file_id {
return;
}
let generic_params = db.generic_params(*self);
let mut toc_idx_iter = generic_params.type_or_consts.iter().map(|(idx, _)| idx);
let lts_idx_iter = generic_params.lifetimes.iter().map(|(idx, _)| idx);
// For traits the first type index is `Self`, skip it.
if let GenericDefId::TraitId(_) = *self {
toc_idx_iter.next().unwrap(); // advance_by(1);
}
if let Some(generic_params_list) = generic_params_list {
for (local_id, ast_param) in
toc_idx_iter.zip(generic_params_list.type_or_const_params())
{
let id = TypeOrConstParamId { parent: *self, local_id };
match ast_param {
ast::TypeOrConstParam::Type(a) => res[keys::TYPE_PARAM].insert(a, id),
ast::TypeOrConstParam::Const(a) => res[keys::CONST_PARAM].insert(a, id),
}
}
for (local_id, ast_param) in lts_idx_iter.zip(generic_params_list.lifetime_params()) {
let id = LifetimeParamId { parent: *self, local_id };
res[keys::LIFETIME_PARAM].insert(ast_param, id);
}
}
}
}
fn insert_item_loc<ID, N, Data>(
db: &dyn DefDatabase,
res: &mut DynMap,
@ -224,3 +248,11 @@ fn insert_item_loc<ID, N, Data>(
res[key].insert(loc.source(db).value, id)
}
}
fn add_assoc_item(db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId, item: AssocItemId) {
match item {
AssocItemId::FunctionId(func) => insert_item_loc(db, res, file_id, func, keys::FUNCTION),
AssocItemId::ConstId(konst) => insert_item_loc(db, res, file_id, konst, keys::CONST),
AssocItemId::TypeAliasId(ty) => insert_item_loc(db, res, file_id, ty, keys::TYPE_ALIAS),
}
}

48
crates/hir-def/src/data/adt.rs
View File

@ -10,7 +10,7 @@ use hir_expand::{
HirFileId, InFile,
};
use intern::Interned;
use la_arena::{Arena, ArenaMap};
use la_arena::Arena;
use rustc_abi::{Align, Integer, IntegerType, ReprFlags, ReprOptions};
use syntax::ast::{self, HasName, HasVisibility};
use triomphe::Arc;
@ -22,13 +22,11 @@ use crate::{
lang_item::LangItem,
lower::LowerCtx,
nameres::diagnostics::{DefDiagnostic, DefDiagnostics},
src::HasChildSource,
src::HasSource,
trace::Trace,
tt::{Delimiter, DelimiterKind, Leaf, Subtree, TokenTree},
type_ref::TypeRef,
visibility::RawVisibility,
EnumId, EnumVariantId, LocalFieldId, LocalModuleId, Lookup, StructId, UnionId, VariantId,
EnumId, EnumVariantId, LocalFieldId, LocalModuleId, Lookup, StructId, UnionId,
};
/// Note that we use `StructData` for unions as well!
@ -387,46 +385,6 @@ impl VariantData {
}
}
impl HasChildSource<LocalFieldId> for VariantId {
type Value = Either<ast::TupleField, ast::RecordField>;
fn child_source(&self, db: &dyn DefDatabase) -> InFile<ArenaMap<LocalFieldId, Self::Value>> {
let item_tree;
let (src, fields, container) = match *self {
VariantId::EnumVariantId(it) => {
let lookup = it.lookup(db);
item_tree = lookup.id.item_tree(db);
(
lookup.source(db).map(|it| it.kind()),
&item_tree[lookup.id.value].fields,
lookup.parent.lookup(db).container,
)
}
VariantId::StructId(it) => {
let lookup = it.lookup(db);
item_tree = lookup.id.item_tree(db);
(
lookup.source(db).map(|it| it.kind()),
&item_tree[lookup.id.value].fields,
lookup.container,
)
}
VariantId::UnionId(it) => {
let lookup = it.lookup(db);
item_tree = lookup.id.item_tree(db);
(
lookup.source(db).map(|it| it.kind()),
&item_tree[lookup.id.value].fields,
lookup.container,
)
}
};
let mut trace = Trace::new_for_map();
lower_struct(db, &mut trace, &src, container.krate, &item_tree, fields);
src.with_value(trace.into_map())
}
}
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
pub enum StructKind {
Tuple,
@ -434,7 +392,7 @@ pub enum StructKind {
Unit,
}
fn lower_struct(
pub(crate) fn lower_struct(
db: &dyn DefDatabase,
trace: &mut Trace<FieldData, Either<ast::TupleField, ast::RecordField>>,
ast: &InFile<ast::StructKind>,

139
crates/hir-def/src/generics.rs
View File

@ -3,31 +3,27 @@
//! generic parameters. See also the `Generics` type and the `generics_of` query
//! in rustc.
use base_db::FileId;
use either::Either;
use hir_expand::{
name::{AsName, Name},
ExpandResult, HirFileId, InFile,
ExpandResult,
};
use intern::Interned;
use la_arena::{Arena, ArenaMap, Idx};
use la_arena::{Arena, Idx};
use once_cell::unsync::Lazy;
use stdx::impl_from;
use syntax::ast::{self, HasGenericParams, HasName, HasTypeBounds};
use triomphe::Arc;
use crate::{
child_by_source::ChildBySource,
db::DefDatabase,
dyn_map::{keys, DynMap},
expander::Expander,
item_tree::ItemTree,
lower::LowerCtx,
nameres::{DefMap, MacroSubNs},
src::{HasChildSource, HasSource},
type_ref::{ConstRef, LifetimeRef, TypeBound, TypeRef},
AdtId, ConstParamId, GenericDefId, HasModule, LifetimeParamId, LocalLifetimeParamId,
LocalTypeOrConstParamId, Lookup, TypeOrConstParamId, TypeParamId,
AdtId, ConstParamId, GenericDefId, HasModule, LocalTypeOrConstParamId, Lookup,
TypeOrConstParamId, TypeParamId,
};
/// Data about a generic type parameter (to a function, struct, impl, ...).
@ -507,130 +503,3 @@ impl GenericParams {
})
}
}
fn file_id_and_params_of(
db: &dyn DefDatabase,
def: GenericDefId,
) -> (HirFileId, Option<ast::GenericParamList>) {
match def {
GenericDefId::FunctionId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::TypeAliasId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::ConstId(_) => (FileId::BOGUS.into(), None),
GenericDefId::AdtId(AdtId::StructId(it)) => file_id_and_params_of_item_loc(db, it),
GenericDefId::AdtId(AdtId::UnionId(it)) => file_id_and_params_of_item_loc(db, it),
GenericDefId::AdtId(AdtId::EnumId(it)) => file_id_and_params_of_item_loc(db, it),
GenericDefId::TraitId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::TraitAliasId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::ImplId(it) => file_id_and_params_of_item_loc(db, it),
// We won't be using this ID anyway
GenericDefId::EnumVariantId(_) => (FileId::BOGUS.into(), None),
}
}
fn file_id_and_params_of_item_loc<Loc>(
db: &dyn DefDatabase,
def: impl for<'db> Lookup<Database<'db> = dyn DefDatabase + 'db, Data = Loc>,
) -> (HirFileId, Option<ast::GenericParamList>)
where
Loc: HasSource,
Loc::Value: HasGenericParams,
{
let src = def.lookup(db).source(db);
(src.file_id, src.value.generic_param_list())
}
impl HasChildSource<LocalTypeOrConstParamId> for GenericDefId {
type Value = Either<ast::TypeOrConstParam, ast::TraitOrAlias>;
fn child_source(
&self,
db: &dyn DefDatabase,
) -> InFile<ArenaMap<LocalTypeOrConstParamId, Self::Value>> {
let generic_params = db.generic_params(*self);
let mut idx_iter = generic_params.type_or_consts.iter().map(|(idx, _)| idx);
let (file_id, generic_params_list) = file_id_and_params_of(db, *self);
let mut params = ArenaMap::default();
// For traits and trait aliases the first type index is `Self`, we need to add it before
// the other params.
match *self {
GenericDefId::TraitId(id) => {
let trait_ref = id.lookup(db).source(db).value;
let idx = idx_iter.next().unwrap();
params.insert(idx, Either::Right(ast::TraitOrAlias::Trait(trait_ref)));
}
GenericDefId::TraitAliasId(id) => {
let alias = id.lookup(db).source(db).value;
let idx = idx_iter.next().unwrap();
params.insert(idx, Either::Right(ast::TraitOrAlias::TraitAlias(alias)));
}
_ => {}
}
if let Some(generic_params_list) = generic_params_list {
for (idx, ast_param) in idx_iter.zip(generic_params_list.type_or_const_params()) {
params.insert(idx, Either::Left(ast_param));
}
}
InFile::new(file_id, params)
}
}
impl HasChildSource<LocalLifetimeParamId> for GenericDefId {
type Value = ast::LifetimeParam;
fn child_source(
&self,
db: &dyn DefDatabase,
) -> InFile<ArenaMap<LocalLifetimeParamId, Self::Value>> {
let generic_params = db.generic_params(*self);
let idx_iter = generic_params.lifetimes.iter().map(|(idx, _)| idx);
let (file_id, generic_params_list) = file_id_and_params_of(db, *self);
let mut params = ArenaMap::default();
if let Some(generic_params_list) = generic_params_list {
for (idx, ast_param) in idx_iter.zip(generic_params_list.lifetime_params()) {
params.insert(idx, ast_param);
}
}
InFile::new(file_id, params)
}
}
impl ChildBySource for GenericDefId {
fn child_by_source_to(&self, db: &dyn DefDatabase, res: &mut DynMap, file_id: HirFileId) {
let (gfile_id, generic_params_list) = file_id_and_params_of(db, *self);
if gfile_id != file_id {
return;
}
let generic_params = db.generic_params(*self);
let mut toc_idx_iter = generic_params.type_or_consts.iter().map(|(idx, _)| idx);
let lts_idx_iter = generic_params.lifetimes.iter().map(|(idx, _)| idx);
// For traits the first type index is `Self`, skip it.
if let GenericDefId::TraitId(_) = *self {
toc_idx_iter.next().unwrap(); // advance_by(1);
}
if let Some(generic_params_list) = generic_params_list {
for (local_id, ast_param) in
toc_idx_iter.zip(generic_params_list.type_or_const_params())
{
let id = TypeOrConstParamId { parent: *self, local_id };
match ast_param {
ast::TypeOrConstParam::Type(a) => res[keys::TYPE_PARAM].insert(a, id),
ast::TypeOrConstParam::Const(a) => res[keys::CONST_PARAM].insert(a, id),
}
}
for (local_id, ast_param) in lts_idx_iter.zip(generic_params_list.lifetime_params()) {
let id = LifetimeParamId { parent: *self, local_id };
res[keys::LIFETIME_PARAM].insert(ast_param, id);
}
}
}
}

35
crates/hir-def/src/lib.rs
View File

@ -87,7 +87,7 @@ use hir_expand::{
use item_tree::ExternBlock;
use la_arena::Idx;
use nameres::DefMap;
use span::Span;
use span::{FileId, Span};
use stdx::impl_from;
use syntax::{ast, AstNode};
@ -892,6 +892,39 @@ impl_from!(
for GenericDefId
);
impl GenericDefId {
fn file_id_and_params_of(
self,
db: &dyn DefDatabase,
) -> (HirFileId, Option<ast::GenericParamList>) {
fn file_id_and_params_of_item_loc<Loc>(
db: &dyn DefDatabase,
def: impl for<'db> Lookup<Database<'db> = dyn DefDatabase + 'db, Data = Loc>,
) -> (HirFileId, Option<ast::GenericParamList>)
where
Loc: src::HasSource,
Loc::Value: ast::HasGenericParams,
{
let src = def.lookup(db).source(db);
(src.file_id, ast::HasGenericParams::generic_param_list(&src.value))
}
match self {
GenericDefId::FunctionId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::TypeAliasId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::ConstId(_) => (FileId::BOGUS.into(), None),
GenericDefId::AdtId(AdtId::StructId(it)) => file_id_and_params_of_item_loc(db, it),
GenericDefId::AdtId(AdtId::UnionId(it)) => file_id_and_params_of_item_loc(db, it),
GenericDefId::AdtId(AdtId::EnumId(it)) => file_id_and_params_of_item_loc(db, it),
GenericDefId::TraitId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::TraitAliasId(it) => file_id_and_params_of_item_loc(db, it),
GenericDefId::ImplId(it) => file_id_and_params_of_item_loc(db, it),
// We won't be using this ID anyway
GenericDefId::EnumVariantId(_) => (FileId::BOGUS.into(), None),
}
}
}
impl From<AssocItemId> for GenericDefId {
fn from(item: AssocItemId) -> Self {
match item {

40
crates/hir-def/src/resolver.rs
View File

@ -27,9 +27,9 @@ use crate::{
visibility::{RawVisibility, Visibility},
AdtId, ConstId, ConstParamId, CrateRootModuleId, DefWithBodyId, EnumId, EnumVariantId,
ExternBlockId, ExternCrateId, FunctionId, GenericDefId, GenericParamId, HasModule, ImplId,
ItemContainerId, LifetimeParamId, LocalModuleId, Lookup, Macro2Id, MacroId, MacroRulesId,
ModuleDefId, ModuleId, ProcMacroId, StaticId, StructId, TraitAliasId, TraitId, TypeAliasId,
TypeOrConstParamId, TypeOwnerId, TypeParamId, UseId, VariantId,
ItemContainerId, ItemTreeLoc, LifetimeParamId, LocalModuleId, Lookup, Macro2Id, MacroId,
MacroRulesId, ModuleDefId, ModuleId, ProcMacroId, StaticId, StructId, TraitAliasId, TraitId,
TypeAliasId, TypeOrConstParamId, TypeOwnerId, TypeParamId, UseId, VariantId,
};
#[derive(Debug, Clone)]
@ -1014,13 +1014,13 @@ impl HasResolver for CrateRootModuleId {
impl HasResolver for TraitId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
lookup_resolver(db, self).push_generic_params_scope(db, self.into())
}
}
impl HasResolver for TraitAliasId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
lookup_resolver(db, self).push_generic_params_scope(db, self.into())
}
}
@ -1036,25 +1036,25 @@ impl<T: Into<AdtId> + Copy> HasResolver for T {
impl HasResolver for FunctionId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
lookup_resolver(db, self).push_generic_params_scope(db, self.into())
}
}
impl HasResolver for ConstId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
impl HasResolver for StaticId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
impl HasResolver for TypeAliasId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db).push_generic_params_scope(db, self.into())
lookup_resolver(db, self).push_generic_params_scope(db, self.into())
}
}
@ -1071,19 +1071,19 @@ impl HasResolver for ImplId {
impl HasResolver for ExternBlockId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
// Same as parent's
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
impl HasResolver for ExternCrateId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
impl HasResolver for UseId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
@ -1170,18 +1170,28 @@ impl HasResolver for MacroId {
impl HasResolver for Macro2Id {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
impl HasResolver for ProcMacroId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
impl HasResolver for MacroRulesId {
fn resolver(self, db: &dyn DefDatabase) -> Resolver {
self.lookup(db).container.resolver(db)
lookup_resolver(db, self)
}
}
fn lookup_resolver<'db>(
db: &(dyn DefDatabase + 'db),
lookup: impl Lookup<
Database<'db> = dyn DefDatabase + 'db,
Data = impl ItemTreeLoc<Container = impl HasResolver>,
>,
) -> Resolver {
lookup.lookup(db).container().resolver(db)
}

109
crates/hir-def/src/src.rs
View File

@ -1,10 +1,15 @@
//! Utilities for mapping between hir IDs and the surface syntax.
use either::Either;
use hir_expand::InFile;
use la_arena::ArenaMap;
use syntax::ast;
use crate::{db::DefDatabase, item_tree::ItemTreeNode, ItemTreeLoc, Lookup, UseId};
use crate::{
data::adt::lower_struct, db::DefDatabase, item_tree::ItemTreeNode, trace::Trace, GenericDefId,
ItemTreeLoc, LocalFieldId, LocalLifetimeParamId, LocalTypeOrConstParamId, Lookup, UseId,
VariantId,
};
pub trait HasSource {
type Value;
@ -49,3 +54,105 @@ impl HasChildSource<la_arena::Idx<ast::UseTree>> for UseId {
)
}
}
impl HasChildSource<LocalTypeOrConstParamId> for GenericDefId {
type Value = Either<ast::TypeOrConstParam, ast::TraitOrAlias>;
fn child_source(
&self,
db: &dyn DefDatabase,
) -> InFile<ArenaMap<LocalTypeOrConstParamId, Self::Value>> {
let generic_params = db.generic_params(*self);
let mut idx_iter = generic_params.type_or_consts.iter().map(|(idx, _)| idx);
let (file_id, generic_params_list) = self.file_id_and_params_of(db);
let mut params = ArenaMap::default();
// For traits and trait aliases the first type index is `Self`, we need to add it before
// the other params.
match *self {
GenericDefId::TraitId(id) => {
let trait_ref = id.lookup(db).source(db).value;
let idx = idx_iter.next().unwrap();
params.insert(idx, Either::Right(ast::TraitOrAlias::Trait(trait_ref)));
}
GenericDefId::TraitAliasId(id) => {
let alias = id.lookup(db).source(db).value;
let idx = idx_iter.next().unwrap();
params.insert(idx, Either::Right(ast::TraitOrAlias::TraitAlias(alias)));
}
_ => {}
}
if let Some(generic_params_list) = generic_params_list {
for (idx, ast_param) in idx_iter.zip(generic_params_list.type_or_const_params()) {
params.insert(idx, Either::Left(ast_param));
}
}
InFile::new(file_id, params)
}
}
impl HasChildSource<LocalLifetimeParamId> for GenericDefId {
type Value = ast::LifetimeParam;
fn child_source(
&self,
db: &dyn DefDatabase,
) -> InFile<ArenaMap<LocalLifetimeParamId, Self::Value>> {
let generic_params = db.generic_params(*self);
let idx_iter = generic_params.lifetimes.iter().map(|(idx, _)| idx);
let (file_id, generic_params_list) = self.file_id_and_params_of(db);
let mut params = ArenaMap::default();
if let Some(generic_params_list) = generic_params_list {
for (idx, ast_param) in idx_iter.zip(generic_params_list.lifetime_params()) {
params.insert(idx, ast_param);
}
}
InFile::new(file_id, params)
}
}
impl HasChildSource<LocalFieldId> for VariantId {
type Value = Either<ast::TupleField, ast::RecordField>;
fn child_source(&self, db: &dyn DefDatabase) -> InFile<ArenaMap<LocalFieldId, Self::Value>> {
let item_tree;
let (src, fields, container) = match *self {
VariantId::EnumVariantId(it) => {
let lookup = it.lookup(db);
item_tree = lookup.id.item_tree(db);
(
lookup.source(db).map(|it| it.kind()),
&item_tree[lookup.id.value].fields,
lookup.parent.lookup(db).container,
)
}
VariantId::StructId(it) => {
let lookup = it.lookup(db);
item_tree = lookup.id.item_tree(db);
(
lookup.source(db).map(|it| it.kind()),
&item_tree[lookup.id.value].fields,
lookup.container,
)
}
VariantId::UnionId(it) => {
let lookup = it.lookup(db);
item_tree = lookup.id.item_tree(db);
(
lookup.source(db).map(|it| it.kind()),
&item_tree[lookup.id.value].fields,
lookup.container,
)
}
};
let mut trace = Trace::new_for_map();
lower_struct(db, &mut trace, &src, container.krate, &item_tree, fields);
src.with_value(trace.into_map())
}
}

2
crates/hir-def/src/trace.rs
View File

@ -11,6 +11,8 @@
//! projections.
use la_arena::{Arena, ArenaMap, Idx, RawIdx};
// FIXME: This isn't really used anymore, at least not in a way where it does anything useful.
// Check if we should get rid of this or make proper use of it instead.
pub(crate) struct Trace<T, V> {
arena: Option<Arena<T>>,
map: Option<ArenaMap<Idx<T>, V>>,