From 9faea2364dee4fbc9391ad233c570b70256ef002 Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Fri, 13 Mar 2020 16:05:46 +0100
Subject: Use `dyn Trait` for working with databse

It improves compile time in `--release` mode quite a bit, it doesn't
really slow things down and, conceptually, it seems closer to what we
want the physical architecture to look like (we don't want to
monomorphise EVERYTHING in a single leaf crate).
---
 crates/ra_db/src/lib.rs | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'crates/ra_db')

diff --git a/crates/ra_db/src/lib.rs b/crates/ra_db/src/lib.rs
index d500d5e85..bac24e218 100644
--- a/crates/ra_db/src/lib.rs
+++ b/crates/ra_db/src/lib.rs
@@ -32,6 +32,10 @@ macro_rules! impl_intern_key {
     };
 }
 
+pub trait Upcast<T: ?Sized> {
+    fn upcast(&self) -> &T;
+}
+
 pub trait CheckCanceled {
     /// Aborts current query if there are pending changes.
     ///
-- 
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