136 lines
4.0 KiB
Rust
136 lines
4.0 KiB
Rust
//! This crate defines the core datastructure representing IDE state -- `RootDatabase`.
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//!
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//! It is mainly a `HirDatabase` for semantic analysis, plus a `SymbolsDatabase`, for fuzzy search.
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mod apply_change;
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pub mod label;
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pub mod line_index;
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pub mod symbol_index;
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pub mod defs;
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pub mod search;
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pub mod imports_locator;
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pub mod source_change;
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pub mod ty_filter;
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pub mod traits;
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pub mod call_info;
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use std::{fmt, sync::Arc};
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use base_db::{
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salsa::{self, Durability},
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Canceled, CheckCanceled, CrateId, FileId, FileLoader, FileLoaderDelegate, SourceDatabase,
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Upcast,
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};
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use hir::db::{AstDatabase, DefDatabase, HirDatabase};
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use rustc_hash::FxHashSet;
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use crate::{line_index::LineIndex, symbol_index::SymbolsDatabase};
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/// `base_db` is normally also needed in places where `ide_db` is used, so this re-export is for convenience.
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pub use base_db;
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#[salsa::database(
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base_db::SourceDatabaseStorage,
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base_db::SourceDatabaseExtStorage,
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LineIndexDatabaseStorage,
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symbol_index::SymbolsDatabaseStorage,
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hir::db::InternDatabaseStorage,
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hir::db::AstDatabaseStorage,
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hir::db::DefDatabaseStorage,
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hir::db::HirDatabaseStorage
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)]
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pub struct RootDatabase {
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storage: salsa::Storage<RootDatabase>,
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}
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impl fmt::Debug for RootDatabase {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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f.debug_struct("RootDatabase").finish()
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}
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}
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impl Upcast<dyn AstDatabase> for RootDatabase {
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fn upcast(&self) -> &(dyn AstDatabase + 'static) {
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&*self
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}
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}
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impl Upcast<dyn DefDatabase> for RootDatabase {
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fn upcast(&self) -> &(dyn DefDatabase + 'static) {
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&*self
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}
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}
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impl Upcast<dyn HirDatabase> for RootDatabase {
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fn upcast(&self) -> &(dyn HirDatabase + 'static) {
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&*self
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}
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}
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impl FileLoader for RootDatabase {
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fn file_text(&self, file_id: FileId) -> Arc<String> {
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FileLoaderDelegate(self).file_text(file_id)
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}
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fn resolve_path(&self, anchor: FileId, path: &str) -> Option<FileId> {
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FileLoaderDelegate(self).resolve_path(anchor, path)
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}
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fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
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FileLoaderDelegate(self).relevant_crates(file_id)
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}
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}
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impl salsa::Database for RootDatabase {
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fn on_propagated_panic(&self) -> ! {
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Canceled::throw()
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}
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fn salsa_event(&self, event: salsa::Event) {
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match event.kind {
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salsa::EventKind::DidValidateMemoizedValue { .. }
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| salsa::EventKind::WillExecute { .. } => {
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self.check_canceled();
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}
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_ => (),
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}
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}
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}
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impl Default for RootDatabase {
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fn default() -> RootDatabase {
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RootDatabase::new(None)
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}
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}
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impl RootDatabase {
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pub fn new(lru_capacity: Option<usize>) -> RootDatabase {
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let mut db = RootDatabase { storage: salsa::Storage::default() };
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db.set_crate_graph_with_durability(Default::default(), Durability::HIGH);
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db.set_local_roots_with_durability(Default::default(), Durability::HIGH);
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db.set_library_roots_with_durability(Default::default(), Durability::HIGH);
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db.update_lru_capacity(lru_capacity);
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db
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}
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pub fn update_lru_capacity(&mut self, lru_capacity: Option<usize>) {
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let lru_capacity = lru_capacity.unwrap_or(base_db::DEFAULT_LRU_CAP);
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base_db::ParseQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
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hir::db::ParseMacroQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
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hir::db::MacroExpandQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
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}
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}
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impl salsa::ParallelDatabase for RootDatabase {
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fn snapshot(&self) -> salsa::Snapshot<RootDatabase> {
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salsa::Snapshot::new(RootDatabase { storage: self.storage.snapshot() })
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}
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}
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#[salsa::query_group(LineIndexDatabaseStorage)]
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pub trait LineIndexDatabase: base_db::SourceDatabase + CheckCanceled {
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fn line_index(&self, file_id: FileId) -> Arc<LineIndex>;
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}
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fn line_index(db: &dyn LineIndexDatabase, file_id: FileId) -> Arc<LineIndex> {
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let text = db.file_text(file_id);
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Arc::new(LineIndex::new(&*text))
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}
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