From 4251f083b551de9bfe15d11bb4b485c0a5de86ab Mon Sep 17 00:00:00 2001
From: kjeremy <kjeremy@gmail.com>
Date: Fri, 26 Apr 2019 11:42:10 -0400
Subject: Add is_empty to Arena

---
 crates/ra_arena/src/lib.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'crates/ra_arena')

diff --git a/crates/ra_arena/src/lib.rs b/crates/ra_arena/src/lib.rs
index 69b5f10e0..26641e690 100644
--- a/crates/ra_arena/src/lib.rs
+++ b/crates/ra_arena/src/lib.rs
@@ -71,6 +71,9 @@ impl<ID: ArenaId, T> Arena<ID, T> {
     pub fn len(&self) -> usize {
         self.data.len()
     }
+    pub fn is_empty(&self) -> bool {
+        self.data.is_empty()
+    }
     pub fn alloc(&mut self, value: T) -> ID {
         let id = RawId(self.data.len() as u32);
         self.data.push(value);
-- 
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