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Remove AttrOwner

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This commit is contained in:
Lukas Wirth 2025-06-12 11:41:46 +02:00
parent f27268f319
commit 83a7ecdead
6 changed files with 60 additions and 69 deletions
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16
crates/hir-def/src/attr.rs
View file

@ -26,7 +26,6 @@ use crate::{
AdtId, AstIdLoc, AttrDefId, GenericParamId, HasModule, LocalFieldId, Lookup, MacroId,
VariantId,
db::DefDatabase,
item_tree::AttrOwner,
lang_item::LangItem,
nameres::{ModuleOrigin, ModuleSource},
src::{HasChildSource, HasSource},
@ -526,23 +525,22 @@ impl AttrsWithOwner {
ModuleOrigin::File { definition, declaration_tree_id, declaration, .. } => {
let decl_attrs = declaration_tree_id
.item_tree(db)
.raw_attrs(AttrOwner::Item(declaration.erase()))
.raw_attrs(declaration.upcast())
.clone();
let tree = db.file_item_tree(definition.into());
let def_attrs = tree.raw_attrs(AttrOwner::TopLevel).clone();
let def_attrs = tree.top_level_raw_attrs().clone();
decl_attrs.merge(def_attrs)
}
ModuleOrigin::CrateRoot { definition } => {
let tree = db.file_item_tree(definition.into());
tree.raw_attrs(AttrOwner::TopLevel).clone()
tree.top_level_raw_attrs().clone()
}
ModuleOrigin::Inline { definition_tree_id, definition } => {
definition_tree_id.item_tree(db).raw_attrs(definition.upcast()).clone()
}
ModuleOrigin::Inline { definition_tree_id, definition } => definition_tree_id
.item_tree(db)
.raw_attrs(AttrOwner::Item(definition.erase()))
.clone(),
ModuleOrigin::BlockExpr { id, .. } => {
let tree = db.block_item_tree(id);
tree.raw_attrs(AttrOwner::TopLevel).clone()
tree.top_level_raw_attrs().clone()
}
};
Attrs::expand_cfg_attr(db, module.krate, raw_attrs)

2
crates/hir-def/src/db.rs
View file

@ -376,7 +376,7 @@ fn include_macro_invoc(
fn crate_supports_no_std(db: &dyn DefDatabase, crate_id: Crate) -> bool {
let file = crate_id.data(db).root_file_id(db);
let item_tree = db.file_item_tree(file.into());
let attrs = item_tree.raw_attrs(crate::item_tree::AttrOwner::TopLevel);
let attrs = item_tree.top_level_raw_attrs();
for attr in &**attrs {
match attr.path().as_ident() {
Some(ident) if *ident == sym::no_std => return true,

68
crates/hir-def/src/item_tree.rs
View file

@ -53,7 +53,7 @@ use hir_expand::{
use intern::Interned;
use la_arena::Idx;
use rustc_hash::FxHashMap;
use span::{AstIdNode, Edition, ErasedFileAstId, FileAstId, SyntaxContext};
use span::{AstIdNode, Edition, FileAstId, SyntaxContext};
use stdx::never;
use syntax::{SyntaxKind, ast, match_ast};
use triomphe::Arc;
@ -89,9 +89,8 @@ impl fmt::Debug for RawVisibilityId {
#[derive(Debug, Default, Eq, PartialEq)]
pub struct ItemTree {
top_level: Box<[ModItemId]>,
// Consider splitting this into top level RawAttrs and the map?
attrs: FxHashMap<AttrOwner, RawAttrs>,
top_attrs: RawAttrs,
attrs: FxHashMap<FileAstId<ast::Item>, RawAttrs>,
vis: ItemVisibilities,
// FIXME: They values store the key, turn this into a FxHashSet<ModItem> instead?
data: FxHashMap<FileAstId<ast::Item>, ModItem>,
@ -104,12 +103,13 @@ impl ItemTree {
let ctx = lower::Ctx::new(db, file_id);
let syntax = db.parse_or_expand(file_id);
let mut top_attrs = None;
let mut item_tree = match_ast! {
match syntax {
ast::SourceFile(file) => {
top_attrs = Some(RawAttrs::new(db, &file, ctx.span_map()));
ctx.lower_module_items(&file)
let top_attrs = RawAttrs::new(db, &file, ctx.span_map());
let mut item_tree = ctx.lower_module_items(&file);
item_tree.top_attrs = top_attrs;
item_tree
},
ast::MacroItems(items) => {
ctx.lower_module_items(&items)
@ -128,10 +128,10 @@ impl ItemTree {
}
};
if let Some(attrs) = top_attrs {
item_tree.attrs.insert(AttrOwner::TopLevel, attrs);
}
if item_tree.data.is_empty() && item_tree.top_level.is_empty() && item_tree.attrs.is_empty()
if item_tree.data.is_empty()
&& item_tree.top_level.is_empty()
&& item_tree.attrs.is_empty()
&& item_tree.top_attrs.is_empty()
{
EMPTY
.get_or_init(|| {
@ -139,6 +139,7 @@ impl ItemTree {
top_level: Box::new([]),
attrs: FxHashMap::default(),
data: FxHashMap::default(),
top_attrs: RawAttrs::EMPTY,
vis: ItemVisibilities { arena: Box::new([]) },
})
})
@ -158,7 +159,10 @@ impl ItemTree {
let ctx = lower::Ctx::new(db, loc.ast_id.file_id);
let mut item_tree = ctx.lower_block(&block);
if item_tree.data.is_empty() && item_tree.top_level.is_empty() && item_tree.attrs.is_empty()
if item_tree.data.is_empty()
&& item_tree.top_level.is_empty()
&& item_tree.attrs.is_empty()
&& item_tree.top_attrs.is_empty()
{
EMPTY
.get_or_init(|| {
@ -166,6 +170,7 @@ impl ItemTree {
top_level: Box::new([]),
attrs: FxHashMap::default(),
data: FxHashMap::default(),
top_attrs: RawAttrs::EMPTY,
vis: ItemVisibilities { arena: Box::new([]) },
})
})
@ -183,19 +188,25 @@ impl ItemTree {
}
/// Returns the inner attributes of the source file.
pub fn top_level_attrs(&self, db: &dyn DefDatabase, krate: Crate) -> Attrs {
Attrs::expand_cfg_attr(
db,
krate,
self.attrs.get(&AttrOwner::TopLevel).unwrap_or(&RawAttrs::EMPTY).clone(),
)
pub fn top_level_raw_attrs(&self) -> &RawAttrs {
&self.top_attrs
}
pub(crate) fn raw_attrs(&self, of: AttrOwner) -> &RawAttrs {
/// Returns the inner attributes of the source file.
pub fn top_level_attrs(&self, db: &dyn DefDatabase, krate: Crate) -> Attrs {
Attrs::expand_cfg_attr(db, krate, self.top_attrs.clone())
}
pub(crate) fn raw_attrs(&self, of: FileAstId<ast::Item>) -> &RawAttrs {
self.attrs.get(&of).unwrap_or(&RawAttrs::EMPTY)
}
pub(crate) fn attrs(&self, db: &dyn DefDatabase, krate: Crate, of: AttrOwner) -> Attrs {
pub(crate) fn attrs(
&self,
db: &dyn DefDatabase,
krate: Crate,
of: FileAstId<ast::Item>,
) -> Attrs {
Attrs::expand_cfg_attr(db, krate, self.raw_attrs(of).clone())
}
@ -226,7 +237,7 @@ impl ItemTree {
}
fn shrink_to_fit(&mut self) {
let ItemTree { top_level: _, attrs, data, vis: _ } = self;
let ItemTree { top_level: _, attrs, data, vis: _, top_attrs: _ } = self;
attrs.shrink_to_fit();
data.shrink_to_fit();
}
@ -266,21 +277,6 @@ pub struct ItemTreeDataStats {
pub macro_rules: usize,
}
#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
pub enum AttrOwner {
/// Attributes on an item.
Item(ErasedFileAstId),
/// Inner attributes of the source file.
TopLevel,
}
impl From<ModItemId> for AttrOwner {
#[inline]
fn from(value: ModItemId) -> Self {
AttrOwner::Item(value.ast_id().erase())
}
}
/// Trait implemented by all nodes in the item tree.
pub trait ItemTreeNode: Clone {
type Source: AstIdNode;

18
crates/hir-def/src/item_tree/lower.rs
View file

@ -10,7 +10,7 @@ use hir_expand::{
span_map::{SpanMap, SpanMapRef},
};
use la_arena::Arena;
use span::{AstIdMap, SyntaxContext};
use span::{AstIdMap, FileAstId, SyntaxContext};
use syntax::{
AstNode,
ast::{self, HasModuleItem, HasName},
@ -20,10 +20,10 @@ use triomphe::Arc;
use crate::{
db::DefDatabase,
item_tree::{
AttrOwner, Const, Enum, ExternBlock, ExternCrate, FieldsShape, Function, Impl, ImportAlias,
Interned, ItemTree, ItemTreeAstId, Macro2, MacroCall, MacroRules, Mod, ModItem, ModItemId,
ModKind, ModPath, RawAttrs, RawVisibility, RawVisibilityId, Static, Struct, StructKind,
Trait, TraitAlias, TypeAlias, Union, Use, UseTree, UseTreeKind, VisibilityExplicitness,
Const, Enum, ExternBlock, ExternCrate, FieldsShape, Function, Impl, ImportAlias, Interned,
ItemTree, ItemTreeAstId, Macro2, MacroCall, MacroRules, Mod, ModItem, ModItemId, ModKind,
ModPath, RawAttrs, RawVisibility, RawVisibilityId, Static, Struct, StructKind, Trait,
TraitAlias, TypeAlias, Union, Use, UseTree, UseTreeKind, VisibilityExplicitness,
},
};
@ -97,7 +97,7 @@ impl<'a> Ctx<'a> {
}
pub(super) fn lower_block(mut self, block: &ast::BlockExpr) -> ItemTree {
self.tree.attrs.insert(AttrOwner::TopLevel, RawAttrs::new(self.db, block, self.span_map()));
self.tree.top_attrs = RawAttrs::new(self.db, block, self.span_map());
self.top_level = block
.statements()
.filter_map(|stmt| match stmt {
@ -144,12 +144,12 @@ impl<'a> Ctx<'a> {
ast::Item::ExternBlock(ast) => self.lower_extern_block(ast).into(),
};
let attrs = RawAttrs::new(self.db, item, self.span_map());
self.add_attrs(mod_item.into(), attrs);
self.add_attrs(mod_item.ast_id(), attrs);
Some(mod_item)
}
fn add_attrs(&mut self, item: AttrOwner, attrs: RawAttrs) {
fn add_attrs(&mut self, item: FileAstId<ast::Item>, attrs: RawAttrs) {
if !attrs.is_empty() {
match self.tree.attrs.entry(item) {
Entry::Occupied(mut entry) => {
@ -365,7 +365,7 @@ impl<'a> Ctx<'a> {
ast::ExternItem::MacroCall(call) => self.lower_macro_call(call)?.into(),
};
let attrs = RawAttrs::new(self.db, &item, self.span_map());
self.add_attrs(mod_item.into(), attrs);
self.add_attrs(mod_item.ast_id(), attrs);
Some(mod_item)
})
.collect()

15
crates/hir-def/src/item_tree/pretty.rs
View file

@ -6,10 +6,9 @@ use span::{Edition, ErasedFileAstId};
use crate::{
item_tree::{
AttrOwner, Const, DefDatabase, Enum, ExternBlock, ExternCrate, FieldsShape, Function, Impl,
ItemTree, Macro2, MacroCall, MacroRules, Mod, ModItemId, ModKind, RawAttrs,
RawVisibilityId, Static, Struct, Trait, TraitAlias, TypeAlias, Union, Use, UseTree,
UseTreeKind,
Const, DefDatabase, Enum, ExternBlock, ExternCrate, FieldsShape, Function, Impl, ItemTree,
Macro2, MacroCall, MacroRules, Mod, ModItemId, ModKind, RawAttrs, RawVisibilityId, Static,
Struct, Trait, TraitAlias, TypeAlias, Union, Use, UseTree, UseTreeKind,
},
visibility::RawVisibility,
};
@ -18,9 +17,7 @@ pub(super) fn print_item_tree(db: &dyn DefDatabase, tree: &ItemTree, edition: Ed
let mut p =
Printer { db, tree, buf: String::new(), indent_level: 0, needs_indent: true, edition };
if let Some(attrs) = tree.attrs.get(&AttrOwner::TopLevel) {
p.print_attrs(attrs, true, "\n");
}
p.print_attrs(&tree.top_attrs, true, "\n");
p.blank();
for item in tree.top_level_items() {
@ -102,8 +99,8 @@ impl Printer<'_> {
}
}
fn print_attrs_of(&mut self, of: impl Into<AttrOwner>, separated_by: &str) {
if let Some(attrs) = self.tree.attrs.get(&of.into()) {
fn print_attrs_of(&mut self, of: ModItemId, separated_by: &str) {
if let Some(attrs) = self.tree.attrs.get(&of.ast_id()) {
self.print_attrs(attrs, false, separated_by);
}
}

10
crates/hir-def/src/nameres/collector.rs
View file

@ -35,8 +35,8 @@ use crate::{
db::DefDatabase,
item_scope::{GlobId, ImportId, ImportOrExternCrate, PerNsGlobImports},
item_tree::{
self, AttrOwner, FieldsShape, ImportAlias, ImportKind, ItemTree, ItemTreeAstId,
ItemTreeNode, Macro2, MacroCall, MacroRules, Mod, ModItemId, ModKind, TreeId, UseTreeKind,
self, FieldsShape, ImportAlias, ImportKind, ItemTree, ItemTreeAstId, ItemTreeNode, Macro2,
MacroCall, MacroRules, Mod, ModItemId, ModKind, TreeId, UseTreeKind,
},
macro_call_as_call_id,
nameres::{
@ -1727,7 +1727,7 @@ impl ModCollector<'_, '_> {
};
let mut process_mod_item = |item: ModItemId| {
let attrs = self.item_tree.attrs(db, krate, item.into());
let attrs = self.item_tree.attrs(db, krate, item.ast_id());
if let Some(cfg) = attrs.cfg() {
if !self.is_cfg_enabled(&cfg) {
let ast_id = item.ast_id().erase();
@ -2298,7 +2298,7 @@ impl ModCollector<'_, '_> {
fn collect_macro_rules(&mut self, id: ItemTreeAstId<MacroRules>, module: ModuleId) {
let krate = self.def_collector.def_map.krate;
let mac = &self.item_tree[id];
let attrs = self.item_tree.attrs(self.def_collector.db, krate, AttrOwner::Item(id.erase()));
let attrs = self.item_tree.attrs(self.def_collector.db, krate, id.upcast());
let ast_id = InFile::new(self.file_id(), mac.ast_id.upcast());
let export_attr = || attrs.by_key(sym::macro_export);
@ -2387,7 +2387,7 @@ impl ModCollector<'_, '_> {
// Case 1: builtin macros
let mut helpers_opt = None;
let attrs = self.item_tree.attrs(self.def_collector.db, krate, AttrOwner::Item(id.erase()));
let attrs = self.item_tree.attrs(self.def_collector.db, krate, id.upcast());
let expander = if attrs.by_key(sym::rustc_builtin_macro).exists() {
if let Some(expander) = find_builtin_macro(&mac.name) {
match expander {