From f1959bbae0cf2f99e63d074278cec165c274b4e5 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Thu, 24 Jan 2019 13:34:41 +0300
Subject: add FunctionId

---
 crates/ra_hir/src/ids.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'crates/ra_hir')

diff --git a/crates/ra_hir/src/ids.rs b/crates/ra_hir/src/ids.rs
index 99f04e4ef..73f1379f1 100644
--- a/crates/ra_hir/src/ids.rs
+++ b/crates/ra_hir/src/ids.rs
@@ -11,6 +11,7 @@ use crate::{
 pub struct HirInterner {
     defs: LocationIntener<DefLoc, DefId>,
     macros: LocationIntener<MacroCallLoc, MacroCallId>,
+    fns: LocationIntener<FunctionLoc, FunctionId>,
 }
 
 impl HirInterner {
@@ -128,6 +129,28 @@ impl MacroCallLoc {
     }
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub struct FunctionId(RawId);
+impl_arena_id!(FunctionId);
+
+#[derive(Clone, Debug, PartialEq, Eq, Hash)]
+pub struct FunctionLoc {
+    pub(crate) module: Module,
+    pub(crate) source_item_id: SourceItemId,
+}
+
+impl FunctionId {
+    pub(crate) fn loc(self, db: &impl AsRef<HirInterner>) -> FunctionLoc {
+        db.as_ref().fns.id2loc(self)
+    }
+}
+
+impl FunctionLoc {
+    pub(crate) fn id(&self, db: &impl AsRef<HirInterner>) -> FunctionId {
+        db.as_ref().fns.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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