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|
use std::{
sync::Arc,
time::Instant,
};
use rustc_hash::FxHashMap;
use ra_syntax::{
AstNode, SyntaxNode, TreePtr,
ast::{self, ModuleItemOwner}
};
use ra_db::{SourceRootId, Cancelable,};
use crate::{
SourceFileItems, SourceItemId, DefKind, DefId, HirFileId, ModuleSource,
MacroCallLoc,
db::HirDatabase,
function::FnScopes,
module_tree::ModuleId,
nameres::{InputModuleItems, ItemMap, Resolver},
adt::{StructData, EnumData},
};
pub(super) fn fn_scopes(db: &impl HirDatabase, def_id: DefId) -> Cancelable<Arc<FnScopes>> {
let body = db.body_hir(def_id)?;
let res = FnScopes::new(body);
Ok(Arc::new(res))
}
pub(super) fn struct_data(db: &impl HirDatabase, def_id: DefId) -> Cancelable<Arc<StructData>> {
let def_loc = def_id.loc(db);
assert!(def_loc.kind == DefKind::Struct);
let syntax = db.file_item(def_loc.source_item_id);
let struct_def =
ast::StructDef::cast(&syntax).expect("struct def should point to StructDef node");
Ok(Arc::new(StructData::new(struct_def)))
}
pub(super) fn enum_data(db: &impl HirDatabase, def_id: DefId) -> Cancelable<Arc<EnumData>> {
let def_loc = def_id.loc(db);
assert!(def_loc.kind == DefKind::Enum);
let syntax = db.file_item(def_loc.source_item_id);
let enum_def = ast::EnumDef::cast(&syntax).expect("enum def should point to EnumDef node");
Ok(Arc::new(EnumData::new(enum_def)))
}
pub(super) fn file_items(db: &impl HirDatabase, file_id: HirFileId) -> Arc<SourceFileItems> {
let source_file = db.hir_source_file(file_id);
let res = SourceFileItems::new(file_id, &source_file);
Arc::new(res)
}
pub(super) fn file_item(
db: &impl HirDatabase,
source_item_id: SourceItemId,
) -> TreePtr<SyntaxNode> {
match source_item_id.item_id {
Some(id) => db.file_items(source_item_id.file_id)[id].to_owned(),
None => db
.hir_source_file(source_item_id.file_id)
.syntax()
.to_owned(),
}
}
pub(super) fn input_module_items(
db: &impl HirDatabase,
source_root_id: SourceRootId,
module_id: ModuleId,
) -> Cancelable<Arc<InputModuleItems>> {
let module_tree = db.module_tree(source_root_id)?;
let source = module_id.source(&module_tree);
let file_id = source.file_id;
let source = ModuleSource::from_source_item_id(db, source);
let file_items = db.file_items(file_id);
let fill = |acc: &mut InputModuleItems, items: &mut Iterator<Item = ast::ItemOrMacro>| {
for item in items {
match item {
ast::ItemOrMacro::Item(it) => {
acc.add_item(file_id, &file_items, it);
}
ast::ItemOrMacro::Macro(macro_call) => {
let item_id = file_items.id_of_unchecked(macro_call.syntax());
let loc = MacroCallLoc {
source_root_id,
module_id,
source_item_id: SourceItemId {
file_id,
item_id: Some(item_id),
},
};
let id = loc.id(db);
let file_id = HirFileId::from(id);
let file_items = db.file_items(file_id);
//FIXME: expand recursively
for item in db.hir_source_file(file_id).items() {
acc.add_item(file_id, &file_items, item);
}
}
}
}
};
let mut res = InputModuleItems::default();
match source {
ModuleSource::SourceFile(it) => fill(&mut res, &mut it.items_with_macros()),
ModuleSource::Module(it) => {
if let Some(item_list) = it.item_list() {
fill(&mut res, &mut item_list.items_with_macros())
}
}
};
Ok(Arc::new(res))
}
pub(super) fn item_map(
db: &impl HirDatabase,
source_root: SourceRootId,
) -> Cancelable<Arc<ItemMap>> {
let start = Instant::now();
let module_tree = db.module_tree(source_root)?;
let input = module_tree
.modules()
.map(|id| {
let items = db.input_module_items(source_root, id)?;
Ok((id, items))
})
.collect::<Cancelable<FxHashMap<_, _>>>()?;
let resolver = Resolver::new(db, &input, source_root, module_tree);
let res = resolver.resolve()?;
let elapsed = start.elapsed();
log::info!("item_map: {:?}", elapsed);
Ok(Arc::new(res))
}
|
