282 lines
10 KiB
Rust
282 lines
10 KiB
Rust
//! Defines database & queries for name resolution.
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use base_db::{salsa, CrateId, SourceDatabase, Upcast};
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use either::Either;
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use hir_expand::{db::ExpandDatabase, HirFileId};
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use intern::Interned;
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use la_arena::ArenaMap;
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use syntax::{ast, AstPtr};
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use triomphe::Arc;
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use crate::{
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attr::{Attrs, AttrsWithOwner},
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body::{scope::ExprScopes, Body, BodySourceMap},
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data::{
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adt::{EnumData, StructData},
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ConstData, FunctionData, ImplData, Macro2Data, MacroRulesData, ProcMacroData, StaticData,
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TraitAliasData, TraitData, TypeAliasData,
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},
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generics::GenericParams,
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import_map::ImportMap,
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item_tree::{AttrOwner, ItemTree},
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lang_item::{LangItem, LangItemTarget, LangItems},
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nameres::{diagnostics::DefDiagnostic, DefMap},
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visibility::{self, Visibility},
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AttrDefId, BlockId, BlockLoc, ConstId, ConstLoc, DefWithBodyId, EnumId, EnumLoc, ExternBlockId,
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ExternBlockLoc, FunctionId, FunctionLoc, GenericDefId, ImplId, ImplLoc, LocalEnumVariantId,
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LocalFieldId, Macro2Id, Macro2Loc, MacroRulesId, MacroRulesLoc, ProcMacroId, ProcMacroLoc,
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StaticId, StaticLoc, StructId, StructLoc, TraitAliasId, TraitAliasLoc, TraitId, TraitLoc,
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TypeAliasId, TypeAliasLoc, UnionId, UnionLoc, VariantId,
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};
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#[salsa::query_group(InternDatabaseStorage)]
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pub trait InternDatabase: SourceDatabase {
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#[salsa::interned]
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fn intern_function(&self, loc: FunctionLoc) -> FunctionId;
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#[salsa::interned]
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fn intern_struct(&self, loc: StructLoc) -> StructId;
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#[salsa::interned]
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fn intern_union(&self, loc: UnionLoc) -> UnionId;
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#[salsa::interned]
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fn intern_enum(&self, loc: EnumLoc) -> EnumId;
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#[salsa::interned]
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fn intern_const(&self, loc: ConstLoc) -> ConstId;
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#[salsa::interned]
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fn intern_static(&self, loc: StaticLoc) -> StaticId;
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#[salsa::interned]
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fn intern_trait(&self, loc: TraitLoc) -> TraitId;
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#[salsa::interned]
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fn intern_trait_alias(&self, loc: TraitAliasLoc) -> TraitAliasId;
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#[salsa::interned]
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fn intern_type_alias(&self, loc: TypeAliasLoc) -> TypeAliasId;
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#[salsa::interned]
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fn intern_impl(&self, loc: ImplLoc) -> ImplId;
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#[salsa::interned]
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fn intern_extern_block(&self, loc: ExternBlockLoc) -> ExternBlockId;
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#[salsa::interned]
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fn intern_block(&self, loc: BlockLoc) -> BlockId;
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#[salsa::interned]
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fn intern_macro2(&self, loc: Macro2Loc) -> Macro2Id;
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#[salsa::interned]
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fn intern_proc_macro(&self, loc: ProcMacroLoc) -> ProcMacroId;
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#[salsa::interned]
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fn intern_macro_rules(&self, loc: MacroRulesLoc) -> MacroRulesId;
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}
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#[salsa::query_group(DefDatabaseStorage)]
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pub trait DefDatabase: InternDatabase + ExpandDatabase + Upcast<dyn ExpandDatabase> {
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#[salsa::input]
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fn expand_proc_attr_macros(&self) -> bool;
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#[salsa::invoke(ItemTree::file_item_tree_query)]
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fn file_item_tree(&self, file_id: HirFileId) -> Arc<ItemTree>;
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#[salsa::invoke(crate_def_map_wait)]
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#[salsa::transparent]
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fn crate_def_map(&self, krate: CrateId) -> Arc<DefMap>;
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#[salsa::invoke(DefMap::crate_def_map_query)]
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fn crate_def_map_query(&self, krate: CrateId) -> Arc<DefMap>;
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/// Computes the block-level `DefMap`, returning `None` when `block` doesn't contain any inner
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/// items directly.
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///
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/// For example:
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///
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/// ```
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/// fn f() { // (0)
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/// { // (1)
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/// fn inner() {}
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/// }
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/// }
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/// ```
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///
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/// The `block_def_map` for block 0 would return `None`, while `block_def_map` of block 1 would
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/// return a `DefMap` containing `inner`.
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#[salsa::invoke(DefMap::block_def_map_query)]
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fn block_def_map(&self, block: BlockId) -> Arc<DefMap>;
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// region:data
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#[salsa::invoke(StructData::struct_data_query)]
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fn struct_data(&self, id: StructId) -> Arc<StructData>;
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#[salsa::invoke(StructData::struct_data_with_diagnostics_query)]
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fn struct_data_with_diagnostics(&self, id: StructId)
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-> (Arc<StructData>, Arc<[DefDiagnostic]>);
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#[salsa::invoke(StructData::union_data_query)]
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fn union_data(&self, id: UnionId) -> Arc<StructData>;
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#[salsa::invoke(StructData::union_data_with_diagnostics_query)]
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fn union_data_with_diagnostics(&self, id: UnionId) -> (Arc<StructData>, Arc<[DefDiagnostic]>);
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#[salsa::invoke(EnumData::enum_data_query)]
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fn enum_data(&self, e: EnumId) -> Arc<EnumData>;
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#[salsa::invoke(EnumData::enum_data_with_diagnostics_query)]
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fn enum_data_with_diagnostics(&self, e: EnumId) -> (Arc<EnumData>, Arc<[DefDiagnostic]>);
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#[salsa::invoke(ImplData::impl_data_query)]
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fn impl_data(&self, e: ImplId) -> Arc<ImplData>;
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#[salsa::invoke(ImplData::impl_data_with_diagnostics_query)]
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fn impl_data_with_diagnostics(&self, e: ImplId) -> (Arc<ImplData>, Arc<[DefDiagnostic]>);
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#[salsa::invoke(TraitData::trait_data_query)]
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fn trait_data(&self, e: TraitId) -> Arc<TraitData>;
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#[salsa::invoke(TraitData::trait_data_with_diagnostics_query)]
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fn trait_data_with_diagnostics(&self, tr: TraitId) -> (Arc<TraitData>, Arc<[DefDiagnostic]>);
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#[salsa::invoke(TraitAliasData::trait_alias_query)]
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fn trait_alias_data(&self, e: TraitAliasId) -> Arc<TraitAliasData>;
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#[salsa::invoke(TypeAliasData::type_alias_data_query)]
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fn type_alias_data(&self, e: TypeAliasId) -> Arc<TypeAliasData>;
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#[salsa::invoke(FunctionData::fn_data_query)]
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fn function_data(&self, func: FunctionId) -> Arc<FunctionData>;
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#[salsa::invoke(ConstData::const_data_query)]
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fn const_data(&self, konst: ConstId) -> Arc<ConstData>;
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#[salsa::invoke(StaticData::static_data_query)]
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fn static_data(&self, konst: StaticId) -> Arc<StaticData>;
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#[salsa::invoke(Macro2Data::macro2_data_query)]
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fn macro2_data(&self, makro: Macro2Id) -> Arc<Macro2Data>;
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#[salsa::invoke(MacroRulesData::macro_rules_data_query)]
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fn macro_rules_data(&self, makro: MacroRulesId) -> Arc<MacroRulesData>;
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#[salsa::invoke(ProcMacroData::proc_macro_data_query)]
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fn proc_macro_data(&self, makro: ProcMacroId) -> Arc<ProcMacroData>;
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// endregion:data
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#[salsa::invoke(Body::body_with_source_map_query)]
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fn body_with_source_map(&self, def: DefWithBodyId) -> (Arc<Body>, Arc<BodySourceMap>);
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#[salsa::invoke(Body::body_query)]
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fn body(&self, def: DefWithBodyId) -> Arc<Body>;
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#[salsa::invoke(ExprScopes::expr_scopes_query)]
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fn expr_scopes(&self, def: DefWithBodyId) -> Arc<ExprScopes>;
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#[salsa::invoke(GenericParams::generic_params_query)]
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fn generic_params(&self, def: GenericDefId) -> Interned<GenericParams>;
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// region:attrs
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#[salsa::invoke(Attrs::variants_attrs_query)]
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fn variants_attrs(&self, def: EnumId) -> Arc<ArenaMap<LocalEnumVariantId, Attrs>>;
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#[salsa::invoke(Attrs::fields_attrs_query)]
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fn fields_attrs(&self, def: VariantId) -> Arc<ArenaMap<LocalFieldId, Attrs>>;
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#[salsa::invoke(crate::attr::variants_attrs_source_map)]
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fn variants_attrs_source_map(
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&self,
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def: EnumId,
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) -> Arc<ArenaMap<LocalEnumVariantId, AstPtr<ast::Variant>>>;
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#[salsa::invoke(crate::attr::fields_attrs_source_map)]
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fn fields_attrs_source_map(
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&self,
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def: VariantId,
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) -> Arc<ArenaMap<LocalFieldId, Either<AstPtr<ast::TupleField>, AstPtr<ast::RecordField>>>>;
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#[salsa::invoke(AttrsWithOwner::attrs_query)]
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fn attrs(&self, def: AttrDefId) -> Attrs;
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#[salsa::transparent]
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#[salsa::invoke(AttrsWithOwner::attrs_with_owner)]
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fn attrs_with_owner(&self, def: AttrDefId) -> AttrsWithOwner;
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// endregion:attrs
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#[salsa::invoke(LangItems::crate_lang_items_query)]
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fn crate_lang_items(&self, krate: CrateId) -> Arc<LangItems>;
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#[salsa::invoke(LangItems::lang_item_query)]
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fn lang_item(&self, start_crate: CrateId, item: LangItem) -> Option<LangItemTarget>;
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#[salsa::invoke(ImportMap::import_map_query)]
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fn import_map(&self, krate: CrateId) -> Arc<ImportMap>;
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#[salsa::invoke(visibility::field_visibilities_query)]
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fn field_visibilities(&self, var: VariantId) -> Arc<ArenaMap<LocalFieldId, Visibility>>;
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// FIXME: unify function_visibility and const_visibility?
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#[salsa::invoke(visibility::function_visibility_query)]
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fn function_visibility(&self, def: FunctionId) -> Visibility;
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#[salsa::invoke(visibility::const_visibility_query)]
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fn const_visibility(&self, def: ConstId) -> Visibility;
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#[salsa::transparent]
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fn crate_limits(&self, crate_id: CrateId) -> CrateLimits;
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#[salsa::transparent]
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fn recursion_limit(&self, crate_id: CrateId) -> u32;
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fn crate_supports_no_std(&self, crate_id: CrateId) -> bool;
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}
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fn crate_def_map_wait(db: &dyn DefDatabase, krate: CrateId) -> Arc<DefMap> {
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let _p = profile::span("crate_def_map:wait");
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db.crate_def_map_query(krate)
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}
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pub struct CrateLimits {
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/// The maximum depth for potentially infinitely-recursive compile-time operations like macro expansion or auto-dereference.
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pub recursion_limit: u32,
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}
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fn crate_limits(db: &dyn DefDatabase, crate_id: CrateId) -> CrateLimits {
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let def_map = db.crate_def_map(crate_id);
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CrateLimits {
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// 128 is the default in rustc.
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recursion_limit: def_map.recursion_limit().unwrap_or(128),
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}
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}
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fn recursion_limit(db: &dyn DefDatabase, crate_id: CrateId) -> u32 {
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db.crate_limits(crate_id).recursion_limit
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}
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fn crate_supports_no_std(db: &dyn DefDatabase, crate_id: CrateId) -> bool {
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let file = db.crate_graph()[crate_id].root_file_id;
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let item_tree = db.file_item_tree(file.into());
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let attrs = item_tree.raw_attrs(AttrOwner::TopLevel);
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for attr in &**attrs {
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match attr.path().as_ident().and_then(|id| id.as_text()) {
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Some(ident) if ident == "no_std" => return true,
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Some(ident) if ident == "cfg_attr" => {}
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_ => continue,
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}
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// This is a `cfg_attr`; check if it could possibly expand to `no_std`.
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// Syntax is: `#[cfg_attr(condition(cfg, style), attr0, attr1, <...>)]`
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let tt = match attr.token_tree_value() {
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Some(tt) => &tt.token_trees,
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None => continue,
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};
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let segments = tt.split(|tt| match tt {
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tt::TokenTree::Leaf(tt::Leaf::Punct(p)) if p.char == ',' => true,
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_ => false,
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});
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for output in segments.skip(1) {
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match output {
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[tt::TokenTree::Leaf(tt::Leaf::Ident(ident))] if ident.text == "no_std" => {
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return true
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}
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_ => {}
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}
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}
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}
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false
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}
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