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