1 //! This crate defines the core datastructure representing IDE state -- `RootDatabase`.
3 //! It is mainly a `HirDatabase` for semantic analysis, plus a `SymbolsDatabase`, for fuzzy search.
7 pub mod line_index_utils;
12 pub mod imports_locator;
13 pub mod source_change;
18 use hir::db::{AstDatabase, DefDatabase};
20 salsa::{self, Database, Durability},
21 Canceled, CheckCanceled, CrateId, FileId, FileLoader, FileLoaderDelegate, RelativePath,
22 SourceDatabase, SourceRootId, Upcast,
24 use rustc_hash::FxHashMap;
26 use crate::{line_index::LineIndex, symbol_index::SymbolsDatabase};
29 ra_db::SourceDatabaseStorage,
30 ra_db::SourceDatabaseExtStorage,
31 LineIndexDatabaseStorage,
32 symbol_index::SymbolsDatabaseStorage,
33 hir::db::InternDatabaseStorage,
34 hir::db::AstDatabaseStorage,
35 hir::db::DefDatabaseStorage,
36 hir::db::HirDatabaseStorage
39 pub struct RootDatabase {
40 runtime: salsa::Runtime<RootDatabase>,
41 pub(crate) debug_data: Arc<DebugData>,
42 pub last_gc: crate::wasm_shims::Instant,
43 pub last_gc_check: crate::wasm_shims::Instant,
46 impl Upcast<dyn AstDatabase> for RootDatabase {
47 fn upcast(&self) -> &(dyn AstDatabase + 'static) {
52 impl Upcast<dyn DefDatabase> for RootDatabase {
53 fn upcast(&self) -> &(dyn DefDatabase + 'static) {
58 impl FileLoader for RootDatabase {
59 fn file_text(&self, file_id: FileId) -> Arc<String> {
60 FileLoaderDelegate(self).file_text(file_id)
62 fn resolve_relative_path(
65 relative_path: &RelativePath,
67 FileLoaderDelegate(self).resolve_relative_path(anchor, relative_path)
69 fn relevant_crates(&self, file_id: FileId) -> Arc<Vec<CrateId>> {
70 FileLoaderDelegate(self).relevant_crates(file_id)
72 fn resolve_extern_path(
74 extern_id: ra_db::ExternSourceId,
75 relative_path: &RelativePath,
77 FileLoaderDelegate(self).resolve_extern_path(extern_id, relative_path)
81 impl salsa::Database for RootDatabase {
82 fn salsa_runtime(&self) -> &salsa::Runtime<RootDatabase> {
85 fn salsa_runtime_mut(&mut self) -> &mut salsa::Runtime<Self> {
88 fn on_propagated_panic(&self) -> ! {
91 fn salsa_event(&self, event: impl Fn() -> salsa::Event<RootDatabase>) {
93 salsa::EventKind::DidValidateMemoizedValue { .. }
94 | salsa::EventKind::WillExecute { .. } => {
95 self.check_canceled();
102 impl Default for RootDatabase {
103 fn default() -> RootDatabase {
104 RootDatabase::new(None)
109 pub fn new(lru_capacity: Option<usize>) -> RootDatabase {
110 let mut db = RootDatabase {
111 runtime: salsa::Runtime::default(),
112 last_gc: crate::wasm_shims::Instant::now(),
113 last_gc_check: crate::wasm_shims::Instant::now(),
114 debug_data: Default::default(),
116 db.set_crate_graph_with_durability(Default::default(), Durability::HIGH);
117 db.set_local_roots_with_durability(Default::default(), Durability::HIGH);
118 db.set_library_roots_with_durability(Default::default(), Durability::HIGH);
119 db.update_lru_capacity(lru_capacity);
123 pub fn update_lru_capacity(&mut self, lru_capacity: Option<usize>) {
124 let lru_capacity = lru_capacity.unwrap_or(ra_db::DEFAULT_LRU_CAP);
125 self.query_mut(ra_db::ParseQuery).set_lru_capacity(lru_capacity);
126 self.query_mut(hir::db::ParseMacroQuery).set_lru_capacity(lru_capacity);
127 self.query_mut(hir::db::MacroExpandQuery).set_lru_capacity(lru_capacity);
131 impl salsa::ParallelDatabase for RootDatabase {
132 fn snapshot(&self) -> salsa::Snapshot<RootDatabase> {
133 salsa::Snapshot::new(RootDatabase {
134 runtime: self.runtime.snapshot(self),
135 last_gc: self.last_gc,
136 last_gc_check: self.last_gc_check,
137 debug_data: Arc::clone(&self.debug_data),
142 #[salsa::query_group(LineIndexDatabaseStorage)]
143 pub trait LineIndexDatabase: ra_db::SourceDatabase + CheckCanceled {
144 fn line_index(&self, file_id: FileId) -> Arc<LineIndex>;
147 fn line_index(db: &impl LineIndexDatabase, file_id: FileId) -> Arc<LineIndex> {
148 let text = db.file_text(file_id);
149 Arc::new(LineIndex::new(&*text))
152 #[derive(Debug, Default, Clone)]
153 pub(crate) struct DebugData {
154 pub(crate) root_paths: FxHashMap<SourceRootId, String>,
158 pub(crate) fn merge(&mut self, other: DebugData) {
159 self.root_paths.extend(other.root_paths.into_iter());