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_ide_db/src/lib.rs | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

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

diff --git a/crates/ra_ide_db/src/lib.rs b/crates/ra_ide_db/src/lib.rs
index fc1b19def..4faeefa8d 100644
--- a/crates/ra_ide_db/src/lib.rs
+++ b/crates/ra_ide_db/src/lib.rs
@@ -14,10 +14,11 @@ mod wasm_shims;
 
 use std::sync::Arc;
 
+use hir::db::{AstDatabase, DefDatabase};
 use ra_db::{
     salsa::{self, Database, Durability},
     Canceled, CheckCanceled, CrateId, FileId, FileLoader, FileLoaderDelegate, RelativePath,
-    SourceDatabase, SourceRootId,
+    SourceDatabase, SourceRootId, Upcast,
 };
 use rustc_hash::FxHashMap;
 
@@ -41,6 +42,18 @@ pub struct RootDatabase {
     pub last_gc_check: crate::wasm_shims::Instant,
 }
 
+impl Upcast<dyn AstDatabase> for RootDatabase {
+    fn upcast(&self) -> &(dyn AstDatabase + 'static) {
+        &*self
+    }
+}
+
+impl Upcast<dyn DefDatabase> for RootDatabase {
+    fn upcast(&self) -> &(dyn DefDatabase + 'static) {
+        &*self
+    }
+}
+
 impl FileLoader for RootDatabase {
     fn file_text(&self, file_id: FileId) -> Arc<String> {
         FileLoaderDelegate(self).file_text(file_id)
-- 
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