From 009947fa294b8422724a0b49a297880dc332d31d Mon Sep 17 00:00:00 2001
From: Charlotte Meyer <dev@buffet.sh>
Date: Mon, 7 Nov 2022 21:48:44 +0000
Subject: [PATCH] perf(parser): Vec::with_capacity for great improvements

Also played around with SmallVec, it is actually perfoming worse in most
cases, and "equal" at best.

Signed-off-by: Charlotte Meyer <dev@buffet.sh>
---
 crates/oyster_parser/src/cst.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crates/oyster_parser/src/cst.rs b/crates/oyster_parser/src/cst.rs
index f2e045e..1a4cb96 100644
--- a/crates/oyster_parser/src/cst.rs
+++ b/crates/oyster_parser/src/cst.rs
@@ -29,7 +29,7 @@ impl<'a> From<&'a str> for ParseTree {
 }
 
 fn build_tree(parser: &mut Parser) -> Vec<ParseTree> {
-    let mut children = vec![];
+    let mut children = Vec::with_capacity(4);
 
     while let Some(ev) = parser.next() {
         match ev {