From f633f69e36f0aee2cb77a3436b54aeca9aa0d10e Mon Sep 17 00:00:00 2001
From: kjeremy <kjeremy@gmail.com>
Date: Mon, 30 Mar 2020 17:09:21 -0400
Subject: Do not call reserve since extend will handle it.

`Take` implements `TrustedLen` so we are guaranteed that only one
reserve call will be made.
---
 crates/ra_arena/src/map.rs | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'crates/ra_arena')

diff --git a/crates/ra_arena/src/map.rs b/crates/ra_arena/src/map.rs
index b9521c342..e4ddbad42 100644
--- a/crates/ra_arena/src/map.rs
+++ b/crates/ra_arena/src/map.rs
@@ -14,9 +14,6 @@ pub struct ArenaMap<ID, V> {
 impl<T, V> ArenaMap<Idx<T>, V> {
     pub fn insert(&mut self, id: Idx<T>, t: V) {
         let idx = Self::to_idx(id);
-        if self.v.capacity() <= idx {
-            self.v.reserve(idx + 1 - self.v.capacity());
-        }
 
         let fill = (idx + 1).saturating_sub(self.v.len());
         self.v.extend(std::iter::repeat_with(|| None).take(fill));
-- 
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