//! Contains basic data about various HIR declarations.
-use std::{mem, sync::Arc};
+use std::sync::Arc;
-use hir_expand::{name::Name, AstId, ExpandResult, HirFileId, InFile, MacroCallId, MacroDefKind};
+use hir_expand::{name::Name, AstId, ExpandResult, HirFileId, MacroCallId, MacroDefKind};
+use smallvec::SmallVec;
use syntax::ast;
use crate::{
body::{Expander, Mark},
db::DefDatabase,
intern::Interned,
- item_tree::{self, AssocItem, FnFlags, ItemTreeId, ModItem, Param, TreeId},
+ item_tree::{self, AssocItem, FnFlags, ItemTree, ItemTreeId, ModItem, Param, TreeId},
nameres::{attr_resolution::ResolvedAttr, DefMap},
type_ref::{TraitRef, TypeBound, TypeRef},
visibility::RawVisibility,
AssocItemId, AstIdWithPath, ConstId, ConstLoc, FunctionId, FunctionLoc, HasModule, ImplId,
- Intern, ItemContainerId, Lookup, Macro2Id, MacroRulesId, ModuleId, ProcMacroId, StaticId,
- TraitId, TypeAliasId, TypeAliasLoc,
+ Intern, ItemContainerId, ItemLoc, Lookup, Macro2Id, MacroRulesId, ModuleId, ProcMacroId,
+ StaticId, TraitId, TypeAliasId, TypeAliasLoc,
};
#[derive(Debug, Clone, PartialEq, Eq)]
impl TraitData {
pub(crate) fn trait_data_query(db: &dyn DefDatabase, tr: TraitId) -> Arc<TraitData> {
- let tr_loc = tr.lookup(db);
- let item_tree = tr_loc.id.item_tree(db);
- let tr_def = &item_tree[tr_loc.id.value];
+ let tr_loc @ ItemLoc { container: module_id, id: tree_id } = tr.lookup(db);
+ let item_tree = tree_id.item_tree(db);
+ let tr_def = &item_tree[tree_id.value];
let _cx = stdx::panic_context::enter(format!(
"trait_data_query({:?} -> {:?} -> {:?})",
tr, tr_loc, tr_def
let name = tr_def.name.clone();
let is_auto = tr_def.is_auto;
let is_unsafe = tr_def.is_unsafe;
- let module_id = tr_loc.container;
let visibility = item_tree[tr_def.visibility].clone();
let skip_array_during_method_dispatch = item_tree
- .attrs(db, tr_loc.container.krate(), ModItem::from(tr_loc.id.value).into())
+ .attrs(db, module_id.krate(), ModItem::from(tree_id.value).into())
.by_key("rustc_skip_array_during_method_dispatch")
.exists();
- let mut collector = AssocItemCollector::new(
- db,
- module_id,
- tr_loc.id.file_id(),
- ItemContainerId::TraitId(tr),
- );
- collector.collect(tr_loc.id.tree_id(), &tr_def.items);
+ let mut collector =
+ AssocItemCollector::new(db, module_id, tree_id.file_id(), ItemContainerId::TraitId(tr));
+ collector.collect(&item_tree, tree_id.tree_id(), &tr_def.items);
+ let (items, attribute_calls) = collector.finish();
Arc::new(TraitData {
name,
- attribute_calls: collector.take_attr_calls(),
- items: collector.items,
+ attribute_calls,
+ items,
is_auto,
is_unsafe,
visibility,
impl ImplData {
pub(crate) fn impl_data_query(db: &dyn DefDatabase, id: ImplId) -> Arc<ImplData> {
let _p = profile::span("impl_data_query");
- let impl_loc = id.lookup(db);
+ let ItemLoc { container: module_id, id: tree_id } = id.lookup(db);
- let item_tree = impl_loc.id.item_tree(db);
- let impl_def = &item_tree[impl_loc.id.value];
+ let item_tree = tree_id.item_tree(db);
+ let impl_def = &item_tree[tree_id.value];
let target_trait = impl_def.target_trait.clone();
let self_ty = impl_def.self_ty.clone();
let is_negative = impl_def.is_negative;
- let module_id = impl_loc.container;
- let mut collector = AssocItemCollector::new(
- db,
- module_id,
- impl_loc.id.file_id(),
- ItemContainerId::ImplId(id),
- );
- collector.collect(impl_loc.id.tree_id(), &impl_def.items);
+ let mut collector =
+ AssocItemCollector::new(db, module_id, tree_id.file_id(), ItemContainerId::ImplId(id));
+ collector.collect(&item_tree, tree_id.tree_id(), &impl_def.items);
- let attribute_calls = collector.take_attr_calls();
- let items = collector.items.into_iter().map(|(_, item)| item).collect();
+ let (items, attribute_calls) = collector.finish();
+ let items = items.into_iter().map(|(_, item)| item).collect();
Arc::new(ImplData { target_trait, self_ty, items, is_negative, attribute_calls })
}
}
}
- fn take_attr_calls(&mut self) -> Option<Box<Vec<(AstId<ast::Item>, MacroCallId)>>> {
- let attribute_calls = mem::take(&mut self.attr_calls);
- if attribute_calls.is_empty() {
- None
- } else {
- Some(Box::new(attribute_calls))
- }
+ fn finish(
+ self,
+ ) -> (Vec<(Name, AssocItemId)>, Option<Box<Vec<(AstId<ast::Item>, MacroCallId)>>>) {
+ (
+ self.items,
+ if self.attr_calls.is_empty() { None } else { Some(Box::new(self.attr_calls)) },
+ )
}
// FIXME: proc-macro diagnostics
- fn collect(&mut self, tree_id: TreeId, assoc_items: &[AssocItem]) {
- let item_tree = tree_id.item_tree(self.db);
+ fn collect(&mut self, item_tree: &ItemTree, tree_id: TreeId, assoc_items: &[AssocItem]) {
+ let container = self.container;
+ self.items.reserve(assoc_items.len());
'items: for &item in assoc_items {
let attrs = item_tree.attrs(self.db, self.module_id.krate, ModItem::from(item).into());
continue 'attrs;
}
}
- match self.expander.enter_expand_id(self.db, call_id) {
- ExpandResult { value: Some((mark, mac)), .. } => {
- self.collect_macro_items(mark, mac);
+ match self.expander.enter_expand_id::<ast::MacroItems>(self.db, call_id) {
+ ExpandResult { value: Some((mark, _)), .. } => {
+ self.collect_macro_items(mark);
continue 'items;
}
ExpandResult { .. } => {}
match item {
AssocItem::Function(id) => {
let item = &item_tree[id];
+
let def =
- FunctionLoc { container: self.container, id: ItemTreeId::new(tree_id, id) }
- .intern(self.db);
+ FunctionLoc { container, id: ItemTreeId::new(tree_id, id) }.intern(self.db);
self.items.push((item.name.clone(), def.into()));
}
AssocItem::Const(id) => {
let item = &item_tree[id];
+
let name = match item.name.clone() {
Some(name) => name,
None => continue,
};
let def =
- ConstLoc { container: self.container, id: ItemTreeId::new(tree_id, id) }
- .intern(self.db);
+ ConstLoc { container, id: ItemTreeId::new(tree_id, id) }.intern(self.db);
self.items.push((name, def.into()));
}
AssocItem::TypeAlias(id) => {
let item = &item_tree[id];
- let def = TypeAliasLoc {
- container: self.container,
- id: ItemTreeId::new(tree_id, id),
- }
- .intern(self.db);
+
+ let def = TypeAliasLoc { container, id: ItemTreeId::new(tree_id, id) }
+ .intern(self.db);
self.items.push((item.name.clone(), def.into()));
}
AssocItem::MacroCall(call) => {
- let call = &item_tree[call];
- let ast_id_map = self.db.ast_id_map(self.expander.current_file_id());
if let Some(root) = self.db.parse_or_expand(self.expander.current_file_id()) {
+ let call = &item_tree[call];
+
+ let ast_id_map = self.db.ast_id_map(self.expander.current_file_id());
let call = ast_id_map.get(call.ast_id).to_node(&root);
let _cx = stdx::panic_context::enter(format!(
"collect_items MacroCall: {}",
call
));
- let res = self.expander.enter_expand(self.db, call);
+ let res = self.expander.enter_expand::<ast::MacroItems>(self.db, call);
- if let Ok(ExpandResult { value: Some((mark, mac)), .. }) = res {
- self.collect_macro_items(mark, mac);
+ if let Ok(ExpandResult { value: Some((mark, _)), .. }) = res {
+ self.collect_macro_items(mark);
}
}
}
}
}
- fn collect_macro_items(&mut self, mark: Mark, mac: ast::MacroItems) {
- let src: InFile<ast::MacroItems> = self.expander.to_source(mac);
- let tree_id = item_tree::TreeId::new(src.file_id, None);
+ fn collect_macro_items(&mut self, mark: Mark) {
+ let tree_id = item_tree::TreeId::new(self.expander.current_file_id(), None);
let item_tree = tree_id.item_tree(self.db);
- let iter: Vec<_> =
+ let iter: SmallVec<[_; 2]> =
item_tree.top_level_items().iter().filter_map(ModItem::as_assoc_item).collect();
- self.collect(tree_id, &iter);
+ self.collect(&item_tree, tree_id, &iter);
self.expander.exit(self.db, mark);
}