Add basic infrastructure for assoc type projection

1 files changed, 14 insertions, 4 deletions

diff --git a/crates/ra_hir/src/type_alias.rs b/crates/ra_hir/src/type_alias.rs
index 87b9caa8a..eada37274 100644
--- a/crates/ra_hir/src/type_alias.rs
+++ b/crates/ra_hir/src/type_alias.rs
@@ -2,12 +2,22 @@
 
 use std::sync::Arc;
 
-use crate::{TypeAlias, DefDatabase, AstDatabase, HasSource, type_ref::TypeRef};
+use ra_syntax::ast::NameOwner;
 
-pub(crate) fn type_alias_ref_query(
+use crate::{TypeAlias, db::{DefDatabase, AstDatabase}, type_ref::TypeRef, name::{Name, AsName}, HasSource};
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct TypeAliasData {
+    pub(crate) name: Name,
+    pub(crate) type_ref: Option<TypeRef>,
+}
+
+pub(crate) fn type_alias_data_query(
     db: &(impl DefDatabase + AstDatabase),
     typ: TypeAlias,
-) -> Arc<TypeRef> {
+) -> Arc<TypeAliasData> {
     let node = typ.source(db).ast;
-    Arc::new(TypeRef::from_ast_opt(node.type_ref()))
+    let name = node.name().map_or_else(Name::missing, |n| n.as_name());
+    let type_ref = node.type_ref().map(TypeRef::from_ast);
+    Arc::new(TypeAliasData { name, type_ref })
 }