From c57a8579888643e73e12dd0ca23e81f88608c52f Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Thu, 24 Jan 2019 16:18:20 +0300
Subject: add StructId

---
 crates/ra_hir/src/ids.rs | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/crates/ra_hir/src/ids.rs b/crates/ra_hir/src/ids.rs
index f00448081..51e3cfb81 100644
--- a/crates/ra_hir/src/ids.rs
+++ b/crates/ra_hir/src/ids.rs
@@ -14,6 +14,7 @@ pub struct HirInterner {
     defs: LocationIntener<DefLoc, DefId>,
     macros: LocationIntener<MacroCallLoc, MacroCallId>,
     fns: LocationIntener<FunctionLoc, FunctionId>,
+    structs: LocationIntener<StructLoc, StructId>,
 }
 
 impl HirInterner {
@@ -194,6 +195,24 @@ impl FunctionLoc {
     }
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct StructId(RawId);
+impl_arena_id!(StructId);
+
+pub(crate) type StructLoc = ItemLoc<ast::StructDef>;
+
+impl StructId {
+    pub(crate) fn loc(self, db: &impl AsRef<HirInterner>) -> StructLoc {
+        db.as_ref().structs.id2loc(self)
+    }
+}
+
+impl StructLoc {
+    pub(crate) fn id(&self, db: &impl AsRef<HirInterner>) -> StructId {
+        db.as_ref().structs.loc2id(&self)
+    }
+}
+
 /// Def's are a core concept of hir. A `Def` is an Item (function, module, etc)
 /// in a specific module.
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-- 
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