From 1babfe7a828331ed8af373db0d02a66f9fc1a319 Mon Sep 17 00:00:00 2001
From: Chayim Refael Friedman <chayimfr@gmail.com>
Date: Wed, 21 May 2025 15:24:07 +0300
Subject: [PATCH] LRU ast id map

We can do that and it's pretty heavy.
---
 src/tools/rust-analyzer/crates/hir-expand/src/db.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/db.rs b/src/tools/rust-analyzer/crates/hir-expand/src/db.rs
index 7cb1b6c02075..b7df3ee2f911 100644
--- a/src/tools/rust-analyzer/crates/hir-expand/src/db.rs
+++ b/src/tools/rust-analyzer/crates/hir-expand/src/db.rs
@@ -60,6 +60,7 @@ pub trait ExpandDatabase: RootQueryDb {
     fn proc_macros_for_crate(&self, krate: Crate) -> Option<Arc<CrateProcMacros>>;
 
     #[salsa::invoke(ast_id_map)]
+    #[salsa::lru(1024)]
     fn ast_id_map(&self, file_id: HirFileId) -> Arc<AstIdMap>;
 
     #[salsa::transparent]