mirror of
https://github.com/rust-lang/rust-analyzer.git
synced 2025-10-01 11:31:15 +00:00
454e4be40d
The idea here is that the crate graph may change over time, but library source file contents *never* will (or really never should). Disconnecting the two means that queries that depend on library sources will not need to re-validatewhen the crate graph changes (unless they depend on the crate graph in some capacity).
255 lines
10 KiB
Rust
255 lines
10 KiB
Rust
//! Applies changes to the IDE state transactionally.
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use base_db::SourceRootId;
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use profile::Bytes;
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use rustc_hash::FxHashSet;
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use salsa::{Database as _, Durability};
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use triomphe::Arc;
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use crate::{ChangeWithProcMacros, RootDatabase, symbol_index::SymbolsDatabase};
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impl RootDatabase {
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pub fn request_cancellation(&mut self) {
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let _p = tracing::info_span!("RootDatabase::request_cancellation").entered();
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self.synthetic_write(Durability::LOW);
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}
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pub fn apply_change(&mut self, change: ChangeWithProcMacros) {
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let _p = tracing::info_span!("RootDatabase::apply_change").entered();
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self.request_cancellation();
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tracing::trace!("apply_change {:?}", change);
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if let Some(roots) = &change.source_change.roots {
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let mut local_roots = FxHashSet::default();
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let mut library_roots = FxHashSet::default();
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for (idx, root) in roots.iter().enumerate() {
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let root_id = SourceRootId(idx as u32);
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if root.is_library {
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library_roots.insert(root_id);
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} else {
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local_roots.insert(root_id);
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}
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}
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self.set_local_roots_with_durability(Arc::new(local_roots), Durability::MEDIUM);
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self.set_library_roots_with_durability(Arc::new(library_roots), Durability::MEDIUM);
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}
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change.apply(self);
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}
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// Feature: Memory Usage
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//
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// Clears rust-analyzer's internal database and prints memory usage statistics.
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//
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// | Editor | Action Name |
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// |---------|-------------|
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// | VS Code | **rust-analyzer: Memory Usage (Clears Database)**
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// 
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pub fn per_query_memory_usage(&mut self) -> Vec<(String, Bytes, usize)> {
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let mut acc: Vec<(String, Bytes, usize)> = vec![];
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// fn collect_query_count<'q, Q>(table: &QueryTable<'q, Q>) -> usize
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// where
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// QueryTable<'q, Q>: DebugQueryTable,
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// Q: Query,
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// <Q as Query>::Storage: 'q,
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// {
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// struct EntryCounter(usize);
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// impl<K, V> FromIterator<TableEntry<K, V>> for EntryCounter {
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// fn from_iter<T>(iter: T) -> EntryCounter
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// where
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// T: IntoIterator<Item = TableEntry<K, V>>,
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// {
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// EntryCounter(iter.into_iter().count())
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// }
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// }
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// table.entries::<EntryCounter>().0
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// }
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macro_rules! purge_each_query {
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($($q:path)*) => {$(
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let before = memory_usage().allocated;
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let table = $q.in_db(self);
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let count = collect_query_count(&table);
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table.purge();
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let after = memory_usage().allocated;
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let q: $q = Default::default();
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let name = format!("{:?}", q);
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acc.push((name, before - after, count));
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)*}
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}
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purge_each_query![
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// // SymbolsDatabase
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// crate::symbol_index::ModuleSymbolsQuery
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// crate::symbol_index::LibrarySymbolsQuery
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// crate::symbol_index::LocalRootsQuery
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// crate::symbol_index::LibraryRootsQuery
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// // HirDatabase
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// hir::db::AdtDatumQuery
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// hir::db::AdtVarianceQuery
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// hir::db::AssociatedTyDataQuery
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// hir::db::AssociatedTyValueQuery
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// hir::db::BorrowckQuery
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// hir::db::CallableItemSignatureQuery
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// hir::db::ConstEvalDiscriminantQuery
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// hir::db::ConstEvalQuery
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// hir::db::ConstEvalStaticQuery
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// hir::db::ConstParamTyQuery
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// hir::db::DynCompatibilityOfTraitQuery
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// hir::db::FieldTypesQuery
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// hir::db::FnDefDatumQuery
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// hir::db::FnDefVarianceQuery
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// hir::db::GenericDefaultsQuery
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// hir::db::GenericPredicatesForParamQuery
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// hir::db::GenericPredicatesQuery
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// hir::db::GenericPredicatesWithoutParentQuery
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// hir::db::ImplDatumQuery
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// hir::db::ImplSelfTyQuery
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// hir::db::ImplTraitQuery
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// hir::db::IncoherentInherentImplCratesQuery
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// hir::db::InferQuery
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// hir::db::InherentImplsInBlockQuery
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// hir::db::InherentImplsInCrateQuery
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// hir::db::InternCallableDefQuery
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// hir::db::InternClosureQuery
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// hir::db::InternCoroutineQuery
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// hir::db::InternImplTraitIdQuery
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// hir::db::InternLifetimeParamIdQuery
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// hir::db::InternTypeOrConstParamIdQuery
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// hir::db::LayoutOfAdtQuery
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// hir::db::LayoutOfTyQuery
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// hir::db::LookupImplMethodQuery
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// hir::db::MirBodyForClosureQuery
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// hir::db::MirBodyQuery
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// hir::db::MonomorphizedMirBodyForClosureQuery
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// hir::db::MonomorphizedMirBodyQuery
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// hir::db::ProgramClausesForChalkEnvQuery
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// hir::db::ReturnTypeImplTraitsQuery
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// hir::db::TargetDataLayoutQuery
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// hir::db::TraitDatumQuery
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// hir::db::TraitEnvironmentQuery
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// hir::db::TraitImplsInBlockQuery
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// hir::db::TraitImplsInCrateQuery
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// hir::db::TraitImplsInDepsQuery
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// hir::db::TraitSolveQuery
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// hir::db::TyQuery
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// hir::db::TypeAliasImplTraitsQuery
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// hir::db::ValueTyQuery
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// // DefDatabase
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// hir::db::AttrsQuery
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// hir::db::BlockDefMapQuery
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// hir::db::BlockItemTreeQuery
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// hir::db::BlockItemTreeWithSourceMapQuery
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// hir::db::BodyQuery
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// hir::db::BodyWithSourceMapQuery
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// hir::db::ConstDataQuery
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// hir::db::ConstVisibilityQuery
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// hir::db::CrateDefMapQuery
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// hir::db::CrateLangItemsQuery
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// hir::db::CrateNotableTraitsQuery
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// hir::db::CrateSupportsNoStdQuery
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// hir::db::EnumDataQuery
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// hir::db::ExpandProcAttrMacrosQuery
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// hir::db::ExprScopesQuery
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// hir::db::ExternCrateDeclDataQuery
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// hir::db::FieldVisibilitiesQuery
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// hir::db::FieldsAttrsQuery
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// hir::db::FieldsAttrsSourceMapQuery
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// hir::db::FileItemTreeQuery
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// hir::db::FileItemTreeWithSourceMapQuery
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// hir::db::FunctionDataQuery
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// hir::db::FunctionVisibilityQuery
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// hir::db::GenericParamsQuery
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// hir::db::GenericParamsWithSourceMapQuery
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// hir::db::ImplItemsWithDiagnosticsQuery
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// hir::db::ImportMapQuery
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// hir::db::IncludeMacroInvocQuery
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// hir::db::InternAnonymousConstQuery
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// hir::db::InternBlockQuery
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// hir::db::InternConstQuery
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// hir::db::InternEnumQuery
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// hir::db::InternExternBlockQuery
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// hir::db::InternExternCrateQuery
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// hir::db::InternFunctionQuery
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// hir::db::InternImplQuery
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// hir::db::InternInTypeConstQuery
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// hir::db::InternMacro2Query
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// hir::db::InternMacroRulesQuery
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// hir::db::InternProcMacroQuery
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// hir::db::InternStaticQuery
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// hir::db::InternStructQuery
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// hir::db::InternTraitAliasQuery
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// hir::db::InternTraitQuery
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// hir::db::InternTypeAliasQuery
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// hir::db::InternUnionQuery
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// hir::db::InternUseQuery
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// hir::db::LangItemQuery
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// hir::db::Macro2DataQuery
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// hir::db::MacroDefQuery
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// hir::db::MacroRulesDataQuery
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// hir::db::NotableTraitsInDepsQuery
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// hir::db::ProcMacroDataQuery
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// hir::db::StaticDataQuery
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// hir::db::TraitAliasDataQuery
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// hir::db::TraitItemsWithDiagnosticsQuery
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// hir::db::TypeAliasDataQuery
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// hir::db::VariantDataWithDiagnosticsQuery
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// // InternDatabase
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// hir::db::InternFunctionQuery
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// hir::db::InternStructQuery
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// hir::db::InternUnionQuery
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// hir::db::InternEnumQuery
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// hir::db::InternConstQuery
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// hir::db::InternStaticQuery
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// hir::db::InternTraitQuery
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// hir::db::InternTraitAliasQuery
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// hir::db::InternTypeAliasQuery
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// hir::db::InternImplQuery
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// hir::db::InternExternBlockQuery
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// hir::db::InternBlockQuery
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// hir::db::InternMacro2Query
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// hir::db::InternProcMacroQuery
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// hir::db::InternMacroRulesQuery
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// // ExpandDatabase
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// hir::db::AstIdMapQuery
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// hir::db::DeclMacroExpanderQuery
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// hir::db::ExpandProcMacroQuery
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// hir::db::InternMacroCallQuery
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// hir::db::InternSyntaxContextQuery
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// hir::db::MacroArgQuery
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// hir::db::ParseMacroExpansionErrorQuery
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// hir::db::ParseMacroExpansionQuery
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// hir::db::ProcMacroSpanQuery
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// hir::db::ProcMacrosQuery
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// hir::db::RealSpanMapQuery
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// // LineIndexDatabase
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// crate::LineIndexQuery
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// // SourceDatabase
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// base_db::ParseQuery
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// base_db::ParseErrorsQuery
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// base_db::AllCratesQuery
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// base_db::InternUniqueCrateDataQuery
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// base_db::InternUniqueCrateDataLookupQuery
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// base_db::CrateDataQuery
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// base_db::ExtraCrateDataQuery
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// base_db::CrateCfgQuery
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// base_db::CrateEnvQuery
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// base_db::CrateWorkspaceDataQuery
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// // SourceDatabaseExt
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// base_db::FileTextQuery
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// base_db::CompressedFileTextQuery
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// base_db::FileSourceRootQuery
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// base_db::SourceRootQuery
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// base_db::SourceRootCratesQuery
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];
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acc.sort_by_key(|it| std::cmp::Reverse(it.1));
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acc
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}
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}
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