1 files changed, 22 insertions, 0 deletions

diff --git a/crates/ra_hir_def/src/db.rs b/crates/ra_hir_def/src/db.rs
new file mode 100644
index 000000000..f6f976c86
--- /dev/null
+++ b/crates/ra_hir_def/src/db.rs
@@ -0,0 +1,22 @@
+//! Defines database & queries for name resolution.
+
+use ra_db::{salsa, SourceDatabase};
+use ra_syntax::ast;
+
+#[salsa::query_group(InternDatabaseStorage)]
+pub trait InternDatabase: SourceDatabase {
+    #[salsa::interned]
+    fn intern_function(&self, loc: crate::ItemLoc<ast::FnDef>) -> crate::FunctionId;
+    #[salsa::interned]
+    fn intern_struct(&self, loc: crate::ItemLoc<ast::StructDef>) -> crate::StructId;
+    #[salsa::interned]
+    fn intern_enum(&self, loc: crate::ItemLoc<ast::EnumDef>) -> crate::EnumId;
+    #[salsa::interned]
+    fn intern_const(&self, loc: crate::ItemLoc<ast::ConstDef>) -> crate::ConstId;
+    #[salsa::interned]
+    fn intern_static(&self, loc: crate::ItemLoc<ast::StaticDef>) -> crate::StaticId;
+    #[salsa::interned]
+    fn intern_trait(&self, loc: crate::ItemLoc<ast::TraitDef>) -> crate::TraitId;
+    #[salsa::interned]
+    fn intern_type_alias(&self, loc: crate::ItemLoc<ast::TypeAliasDef>) -> crate::TypeAliasId;
+}