make sure that CrateDefMap is independent from syntax

1 files changed, 33 insertions, 27 deletions

diff --git a/crates/ra_hir/src/db.rs b/crates/ra_hir/src/db.rs
index a9840905c..8f4de1c85 100644
--- a/crates/ra_hir/src/db.rs
+++ b/crates/ra_hir/src/db.rs
@@ -20,13 +20,41 @@ use crate::{
     lang_item::{LangItems, LangItemTarget}, type_alias::TypeAliasData,
 };
 
-// This database has access to source code, so queries here are not really
-// incremental.
-#[salsa::query_group(AstDatabaseStorage)]
-pub trait AstDatabase: SourceDatabase {
+/// We store all interned things in the single QueryGroup.
+///
+/// This is done mainly to allow both "volatile" `AstDatabase` and "stable"
+/// `DefDatabase` to access macros, without adding hard dependencies between the
+/// two.
+#[salsa::query_group(InternDatabaseStorage)]
+pub trait InternDatabase: SourceDatabase {
     #[salsa::interned]
     fn intern_macro(&self, macro_call: MacroCallLoc) -> ids::MacroCallId;
+    #[salsa::interned]
+    fn intern_function(&self, loc: ids::ItemLoc<ast::FnDef>) -> ids::FunctionId;
+    #[salsa::interned]
+    fn intern_struct(&self, loc: ids::ItemLoc<ast::StructDef>) -> ids::StructId;
+    #[salsa::interned]
+    fn intern_enum(&self, loc: ids::ItemLoc<ast::EnumDef>) -> ids::EnumId;
+    #[salsa::interned]
+    fn intern_const(&self, loc: ids::ItemLoc<ast::ConstDef>) -> ids::ConstId;
+    #[salsa::interned]
+    fn intern_static(&self, loc: ids::ItemLoc<ast::StaticDef>) -> ids::StaticId;
+    #[salsa::interned]
+    fn intern_trait(&self, loc: ids::ItemLoc<ast::TraitDef>) -> ids::TraitId;
+    #[salsa::interned]
+    fn intern_type_alias(&self, loc: ids::ItemLoc<ast::TypeAliasDef>) -> ids::TypeAliasId;
 
+    // Interned IDs for Chalk integration
+    #[salsa::interned]
+    fn intern_type_ctor(&self, type_ctor: TypeCtor) -> ids::TypeCtorId;
+    #[salsa::interned]
+    fn intern_impl_block(&self, impl_block: ImplBlock) -> ids::GlobalImplId;
+}
+
+/// This database has access to source code, so queries here are not really
+/// incremental.
+#[salsa::query_group(AstDatabaseStorage)]
+pub trait AstDatabase: InternDatabase {
     #[salsa::invoke(crate::source_id::AstIdMap::ast_id_map_query)]
     fn ast_id_map(&self, file_id: HirFileId) -> Arc<AstIdMap>;
     #[salsa::transparent]
@@ -40,7 +68,6 @@ pub trait AstDatabase: SourceDatabase {
 
     #[salsa::invoke(crate::ids::macro_def_query)]
     fn macro_def(&self, macro_id: MacroDefId) -> Option<Arc<mbe::MacroRules>>;
-
     #[salsa::invoke(crate::ids::macro_arg_query)]
     fn macro_arg(&self, macro_call: ids::MacroCallId) -> Option<Arc<tt::Subtree>>;
 
@@ -51,28 +78,7 @@ pub trait AstDatabase: SourceDatabase {
 // This database uses `AstDatabase` internally,
 #[salsa::query_group(DefDatabaseStorage)]
 #[salsa::requires(AstDatabase)]
-pub trait DefDatabase: SourceDatabase {
-    #[salsa::interned]
-    fn intern_function(&self, loc: ids::ItemLoc<ast::FnDef>) -> ids::FunctionId;
-    #[salsa::interned]
-    fn intern_struct(&self, loc: ids::ItemLoc<ast::StructDef>) -> ids::StructId;
-    #[salsa::interned]
-    fn intern_enum(&self, loc: ids::ItemLoc<ast::EnumDef>) -> ids::EnumId;
-    #[salsa::interned]
-    fn intern_const(&self, loc: ids::ItemLoc<ast::ConstDef>) -> ids::ConstId;
-    #[salsa::interned]
-    fn intern_static(&self, loc: ids::ItemLoc<ast::StaticDef>) -> ids::StaticId;
-    #[salsa::interned]
-    fn intern_trait(&self, loc: ids::ItemLoc<ast::TraitDef>) -> ids::TraitId;
-    #[salsa::interned]
-    fn intern_type_alias(&self, loc: ids::ItemLoc<ast::TypeAliasDef>) -> ids::TypeAliasId;
-
-    // Interned IDs for Chalk integration
-    #[salsa::interned]
-    fn intern_type_ctor(&self, type_ctor: TypeCtor) -> ids::TypeCtorId;
-    #[salsa::interned]
-    fn intern_impl_block(&self, impl_block: ImplBlock) -> ids::GlobalImplId;
-
+pub trait DefDatabase: InternDatabase {
     #[salsa::invoke(crate::adt::StructData::struct_data_query)]
     fn struct_data(&self, s: Struct) -> Arc<StructData>;