From 53506a755220557a558be4da244b70d79f5b0fa9 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Sun, 24 Nov 2019 14:13:51 +0300
Subject: Pull macro up

---
 crates/ra_db/src/lib.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'crates/ra_db/src/lib.rs')

diff --git a/crates/ra_db/src/lib.rs b/crates/ra_db/src/lib.rs
index f9d012cb0..e8852531b 100644
--- a/crates/ra_db/src/lib.rs
+++ b/crates/ra_db/src/lib.rs
@@ -15,6 +15,20 @@ pub use crate::{
 pub use relative_path::{RelativePath, RelativePathBuf};
 pub use salsa;
 
+#[macro_export]
+macro_rules! impl_intern_key {
+    ($name:ident) => {
+        impl $crate::salsa::InternKey for $name {
+            fn from_intern_id(v: $crate::salsa::InternId) -> Self {
+                $name(v)
+            }
+            fn as_intern_id(&self) -> $crate::salsa::InternId {
+                self.0
+            }
+        }
+    };
+}
+
 pub trait CheckCanceled {
     /// Aborts current query if there are pending changes.
     ///
-- 
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