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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.
#![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)]
mod apply_change;
pub mod active_parameter;
pub mod assists;
pub mod defs;
pub mod famous_defs;
pub mod helpers;
pub mod items_locator;
pub mod label;
pub mod path_transform;
pub mod rename;
pub mod rust_doc;
pub mod search;
pub mod source_change;
pub mod symbol_index;
pub mod traits;
pub mod ty_filter;
pub mod use_trivial_constructor;
pub mod imports {
pub mod import_assets;
pub mod insert_use;
pub mod merge_imports;
}
pub mod generated {
pub mod lints;
}
pub mod syntax_helpers {
pub mod node_ext;
pub mod insert_whitespace_into_node;
pub mod format_string;
pub mod format_string_exprs;
pub use parser::LexedStr;
}
use std::{fmt, mem::ManuallyDrop};
use base_db::{
salsa::{self, Durability},
AnchoredPath, CrateId, FileId, FileLoader, FileLoaderDelegate, SourceDatabase, Upcast,
};
use hir::db::{DefDatabase, ExpandDatabase, HirDatabase};
use triomphe::Arc;
use crate::{line_index::LineIndex, symbol_index::SymbolsDatabase};
pub use rustc_hash::{FxHashMap, FxHashSet, FxHasher};
pub use ::line_index;
/// `base_db` is normally also needed in places where `ide_db` is used, so this re-export is for convenience.
pub use base_db;
pub type FxIndexSet<T> = indexmap::IndexSet<T, std::hash::BuildHasherDefault<rustc_hash::FxHasher>>;
pub type FxIndexMap<K, V> =
indexmap::IndexMap<K, V, std::hash::BuildHasherDefault<rustc_hash::FxHasher>>;
#[salsa::database(
base_db::SourceDatabaseExtStorage,
base_db::SourceDatabaseStorage,
hir::db::ExpandDatabaseStorage,
hir::db::DefDatabaseStorage,
hir::db::HirDatabaseStorage,
hir::db::InternDatabaseStorage,
LineIndexDatabaseStorage,
symbol_index::SymbolsDatabaseStorage
)]
pub struct RootDatabase {
// We use `ManuallyDrop` here because every codegen unit that contains a
// `&RootDatabase -> &dyn OtherDatabase` cast will instantiate its drop glue in the vtable,
// which duplicates `Weak::drop` and `Arc::drop` tens of thousands of times, which makes
// compile times of all `ide_*` and downstream crates suffer greatly.
storage: ManuallyDrop<salsa::Storage<RootDatabase>>,
}
impl Drop for RootDatabase {
fn drop(&mut self) {
unsafe { ManuallyDrop::drop(&mut self.storage) };
}
}
impl fmt::Debug for RootDatabase {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("RootDatabase").finish()
}
}
impl Upcast<dyn ExpandDatabase> for RootDatabase {
fn upcast(&self) -> &(dyn ExpandDatabase + '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<str> {
FileLoaderDelegate(self).file_text(file_id)
}
fn resolve_path(&self, path: AnchoredPath<'_>) -> Option<FileId> {
FileLoaderDelegate(self).resolve_path(path)
}
fn relevant_crates(&self, file_id: FileId) -> Arc<FxHashSet<CrateId>> {
FileLoaderDelegate(self).relevant_crates(file_id)
}
}
impl salsa::Database for RootDatabase {}
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: ManuallyDrop::new(salsa::Storage::default()) };
db.set_crate_graph_with_durability(Default::default(), Durability::HIGH);
db.set_proc_macros_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.set_expand_proc_attr_macros_with_durability(false, Durability::HIGH);
db.update_parse_query_lru_capacity(lru_capacity);
db
}
pub fn enable_proc_attr_macros(&mut self) {
self.set_expand_proc_attr_macros_with_durability(true, Durability::HIGH);
}
pub fn update_parse_query_lru_capacity(&mut self, lru_capacity: Option<usize>) {
let lru_capacity = lru_capacity.unwrap_or(base_db::DEFAULT_PARSE_LRU_CAP);
base_db::ParseQuery.in_db_mut(self).set_lru_capacity(lru_capacity);
// macro expansions are usually rather small, so we can afford to keep more of them alive
hir::db::ParseMacroExpansionQuery.in_db_mut(self).set_lru_capacity(4 * lru_capacity);
hir::db::MacroExpandQuery.in_db_mut(self).set_lru_capacity(4 * lru_capacity);
}
pub fn update_lru_capacities(&mut self, lru_capacities: &FxHashMap<Box<str>, usize>) {
use hir::db as hir_db;
base_db::ParseQuery.in_db_mut(self).set_lru_capacity(
lru_capacities
.get(stringify!(ParseQuery))
.copied()
.unwrap_or(base_db::DEFAULT_PARSE_LRU_CAP),
);
hir_db::ParseMacroExpansionQuery.in_db_mut(self).set_lru_capacity(
lru_capacities
.get(stringify!(ParseMacroExpansionQuery))
.copied()
.unwrap_or(4 * base_db::DEFAULT_PARSE_LRU_CAP),
);
hir_db::MacroExpandQuery.in_db_mut(self).set_lru_capacity(
lru_capacities
.get(stringify!(MacroExpandQuery))
.copied()
.unwrap_or(4 * base_db::DEFAULT_PARSE_LRU_CAP),
);
macro_rules! update_lru_capacity_per_query {
($( $module:ident :: $query:ident )*) => {$(
if let Some(&cap) = lru_capacities.get(stringify!($query)) {
$module::$query.in_db_mut(self).set_lru_capacity(cap);
}
)*}
}
update_lru_capacity_per_query![
// SourceDatabase
// base_db::ParseQuery
// base_db::CrateGraphQuery
// base_db::ProcMacrosQuery
// SourceDatabaseExt
// base_db::FileTextQuery
// base_db::FileSourceRootQuery
// base_db::SourceRootQuery
base_db::SourceRootCratesQuery
// ExpandDatabase
hir_db::AstIdMapQuery
// hir_db::ParseMacroExpansionQuery
// hir_db::InternMacroCallQuery
hir_db::MacroArgTextQuery
hir_db::MacroDefQuery
// hir_db::MacroExpandQuery
hir_db::ExpandProcMacroQuery
hir_db::HygieneFrameQuery
hir_db::ParseMacroExpansionErrorQuery
// DefDatabase
hir_db::FileItemTreeQuery
hir_db::CrateDefMapQueryQuery
hir_db::BlockDefMapQuery
hir_db::StructDataQuery
hir_db::StructDataWithDiagnosticsQuery
hir_db::UnionDataQuery
hir_db::UnionDataWithDiagnosticsQuery
hir_db::EnumDataQuery
hir_db::EnumDataWithDiagnosticsQuery
hir_db::ImplDataQuery
hir_db::ImplDataWithDiagnosticsQuery
hir_db::TraitDataQuery
hir_db::TraitDataWithDiagnosticsQuery
hir_db::TraitAliasDataQuery
hir_db::TypeAliasDataQuery
hir_db::FunctionDataQuery
hir_db::ConstDataQuery
hir_db::StaticDataQuery
hir_db::Macro2DataQuery
hir_db::MacroRulesDataQuery
hir_db::ProcMacroDataQuery
hir_db::BodyWithSourceMapQuery
hir_db::BodyQuery
hir_db::ExprScopesQuery
hir_db::GenericParamsQuery
hir_db::VariantsAttrsQuery
hir_db::FieldsAttrsQuery
hir_db::VariantsAttrsSourceMapQuery
hir_db::FieldsAttrsSourceMapQuery
hir_db::AttrsQuery
hir_db::CrateLangItemsQuery
hir_db::LangItemQuery
hir_db::ImportMapQuery
hir_db::FieldVisibilitiesQuery
hir_db::FunctionVisibilityQuery
hir_db::ConstVisibilityQuery
hir_db::CrateSupportsNoStdQuery
// HirDatabase
hir_db::InferQueryQuery
hir_db::MirBodyQuery
hir_db::BorrowckQuery
hir_db::TyQuery
hir_db::ValueTyQuery
hir_db::ImplSelfTyQuery
hir_db::ConstParamTyQuery
hir_db::ConstEvalQuery
hir_db::ConstEvalDiscriminantQuery
hir_db::ImplTraitQuery
hir_db::FieldTypesQuery
hir_db::LayoutOfAdtQuery
hir_db::TargetDataLayoutQuery
hir_db::CallableItemSignatureQuery
hir_db::ReturnTypeImplTraitsQuery
hir_db::GenericPredicatesForParamQuery
hir_db::GenericPredicatesQuery
hir_db::TraitEnvironmentQuery
hir_db::GenericDefaultsQuery
hir_db::InherentImplsInCrateQuery
hir_db::InherentImplsInBlockQuery
hir_db::IncoherentInherentImplCratesQuery
hir_db::TraitImplsInCrateQuery
hir_db::TraitImplsInBlockQuery
hir_db::TraitImplsInDepsQuery
// hir_db::InternCallableDefQuery
// hir_db::InternLifetimeParamIdQuery
// hir_db::InternImplTraitIdQuery
// hir_db::InternTypeOrConstParamIdQuery
// hir_db::InternClosureQuery
// hir_db::InternGeneratorQuery
hir_db::AssociatedTyDataQuery
hir_db::TraitDatumQuery
hir_db::StructDatumQuery
hir_db::ImplDatumQuery
hir_db::FnDefDatumQuery
hir_db::FnDefVarianceQuery
hir_db::AdtVarianceQuery
hir_db::AssociatedTyValueQuery
hir_db::TraitSolveQueryQuery
hir_db::ProgramClausesForChalkEnvQuery
// SymbolsDatabase
symbol_index::ModuleSymbolsQuery
symbol_index::LibrarySymbolsQuery
// symbol_index::LocalRootsQuery
// symbol_index::LibraryRootsQuery
// LineIndexDatabase
crate::LineIndexQuery
// InternDatabase
// hir_db::InternFunctionQuery
// hir_db::InternStructQuery
// hir_db::InternUnionQuery
// hir_db::InternEnumQuery
// hir_db::InternConstQuery
// hir_db::InternStaticQuery
// hir_db::InternTraitQuery
// hir_db::InternTraitAliasQuery
// hir_db::InternTypeAliasQuery
// hir_db::InternImplQuery
// hir_db::InternExternBlockQuery
// hir_db::InternBlockQuery
// hir_db::InternMacro2Query
// hir_db::InternProcMacroQuery
// hir_db::InternMacroRulesQuery
];
}
}
impl salsa::ParallelDatabase for RootDatabase {
fn snapshot(&self) -> salsa::Snapshot<RootDatabase> {
salsa::Snapshot::new(RootDatabase { storage: ManuallyDrop::new(self.storage.snapshot()) })
}
}
#[salsa::query_group(LineIndexDatabaseStorage)]
pub trait LineIndexDatabase: base_db::SourceDatabase {
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))
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
pub enum SymbolKind {
Attribute,
BuiltinAttr,
Const,
ConstParam,
Derive,
DeriveHelper,
Enum,
Field,
Function,
Impl,
Label,
LifetimeParam,
Local,
Macro,
Module,
SelfParam,
SelfType,
Static,
Struct,
ToolModule,
Trait,
TraitAlias,
TypeAlias,
TypeParam,
Union,
ValueParam,
Variant,
}
impl From<hir::MacroKind> for SymbolKind {
fn from(it: hir::MacroKind) -> Self {
match it {
hir::MacroKind::Declarative | hir::MacroKind::BuiltIn | hir::MacroKind::ProcMacro => {
SymbolKind::Macro
}
hir::MacroKind::Derive => SymbolKind::Derive,
hir::MacroKind::Attr => SymbolKind::Attribute,
}
}
}
impl From<hir::ModuleDefId> for SymbolKind {
fn from(it: hir::ModuleDefId) -> Self {
match it {
hir::ModuleDefId::ConstId(..) => SymbolKind::Const,
hir::ModuleDefId::EnumVariantId(..) => SymbolKind::Variant,
hir::ModuleDefId::FunctionId(..) => SymbolKind::Function,
hir::ModuleDefId::MacroId(..) => SymbolKind::Macro,
hir::ModuleDefId::ModuleId(..) => SymbolKind::Module,
hir::ModuleDefId::StaticId(..) => SymbolKind::Static,
hir::ModuleDefId::AdtId(hir::AdtId::StructId(..)) => SymbolKind::Struct,
hir::ModuleDefId::AdtId(hir::AdtId::EnumId(..)) => SymbolKind::Enum,
hir::ModuleDefId::AdtId(hir::AdtId::UnionId(..)) => SymbolKind::Union,
hir::ModuleDefId::TraitId(..) => SymbolKind::Trait,
hir::ModuleDefId::TraitAliasId(..) => SymbolKind::TraitAlias,
hir::ModuleDefId::TypeAliasId(..) => SymbolKind::TypeAlias,
hir::ModuleDefId::BuiltinType(..) => SymbolKind::TypeAlias,
}
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct SnippetCap {
_private: (),
}
impl SnippetCap {
pub const fn new(allow_snippets: bool) -> Option<SnippetCap> {
if allow_snippets {
Some(SnippetCap { _private: () })
} else {
None
}
}
}
#[cfg(test)]
mod tests {
mod sourcegen_lints;
mod line_index;
}
|