143 lines
4.7 KiB
Rust
143 lines
4.7 KiB
Rust
//! FIXME: write short doc here
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use std::sync::Arc;
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use ra_db::{
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salsa::{self, Database, Durability},
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Canceled, CheckCanceled, CrateId, FileId, FileLoader, FileLoaderDelegate, SourceDatabase,
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SourceDatabaseExt, SourceRootId,
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};
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use relative_path::RelativePath;
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use rustc_hash::FxHashMap;
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use crate::{
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symbol_index::{self, SymbolsDatabase},
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FeatureFlags, LineIndex,
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};
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#[salsa::database(
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ra_db::SourceDatabaseStorage,
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ra_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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#[derive(Debug)]
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pub(crate) struct RootDatabase {
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runtime: salsa::Runtime<RootDatabase>,
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pub(crate) feature_flags: Arc<FeatureFlags>,
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pub(crate) debug_data: Arc<DebugData>,
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pub(crate) last_gc: crate::wasm_shims::Instant,
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pub(crate) last_gc_check: crate::wasm_shims::Instant,
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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_relative_path(
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&self,
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anchor: FileId,
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relative_path: &RelativePath,
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) -> Option<FileId> {
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FileLoaderDelegate(self).resolve_relative_path(anchor, relative_path)
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}
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fn relevant_crates(&self, file_id: FileId) -> Arc<Vec<CrateId>> {
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FileLoaderDelegate(self).relevant_crates(file_id)
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}
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}
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impl hir::debug::HirDebugHelper for RootDatabase {
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fn crate_name(&self, krate: CrateId) -> Option<String> {
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self.debug_data.crate_names.get(&krate).cloned()
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}
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fn file_path(&self, file_id: FileId) -> Option<String> {
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let source_root_id = self.file_source_root(file_id);
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let source_root_path = self.debug_data.root_paths.get(&source_root_id)?;
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let file_path = self.file_relative_path(file_id);
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Some(format!("{}/{}", source_root_path, file_path.display()))
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}
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}
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impl salsa::Database for RootDatabase {
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fn salsa_runtime(&self) -> &salsa::Runtime<RootDatabase> {
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&self.runtime
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}
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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: impl Fn() -> salsa::Event<RootDatabase>) {
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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, FeatureFlags::default())
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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>, feature_flags: FeatureFlags) -> RootDatabase {
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let mut db = RootDatabase {
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runtime: salsa::Runtime::default(),
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last_gc: crate::wasm_shims::Instant::now(),
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last_gc_check: crate::wasm_shims::Instant::now(),
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feature_flags: Arc::new(feature_flags),
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debug_data: Default::default(),
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};
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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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let lru_capacity = lru_capacity.unwrap_or(ra_db::DEFAULT_LRU_CAP);
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db.query_mut(ra_db::ParseQuery).set_lru_capacity(lru_capacity);
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db.query_mut(hir::db::ParseMacroQuery).set_lru_capacity(lru_capacity);
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db.query_mut(hir::db::MacroExpandQuery).set_lru_capacity(lru_capacity);
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db
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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 {
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runtime: self.runtime.snapshot(self),
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last_gc: self.last_gc,
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last_gc_check: self.last_gc_check,
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feature_flags: Arc::clone(&self.feature_flags),
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debug_data: Arc::clone(&self.debug_data),
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})
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}
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}
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#[salsa::query_group(LineIndexDatabaseStorage)]
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pub(crate) trait LineIndexDatabase: ra_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: &impl ra_db::SourceDatabase, 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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#[derive(Debug, Default, Clone)]
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pub(crate) struct DebugData {
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pub(crate) root_paths: FxHashMap<SourceRootId, String>,
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pub(crate) crate_names: FxHashMap<CrateId, String>,
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}
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impl DebugData {
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pub(crate) fn merge(&mut self, other: DebugData) {
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self.root_paths.extend(other.root_paths.into_iter());
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self.crate_names.extend(other.crate_names.into_iter());
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}
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}
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