From dbfa8179d2b0f238bcde2faacc8a774f405cb032 Mon Sep 17 00:00:00 2001
From: Vladimir Agafonkin <agafonkin@gmail.com>
Date: Fri, 16 Mar 2018 13:11:16 +0200
Subject: [PATCH] safeguard against undefined chunk, close #129

---
 src/MagicString.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/MagicString.js b/src/MagicString.js
index 3ffc210..3aa65b9 100644
--- a/src/MagicString.js
+++ b/src/MagicString.js
@@ -525,7 +525,7 @@ export default class MagicString {
 		let chunk = this.lastSearchedChunk;
 		const searchForward = index > chunk.end;
 
-		while (true) {
+		while (chunk) {
 			if (chunk.contains(index)) return this._splitChunk(chunk, index);
 
 			chunk = searchForward ? this.byStart[chunk.end] : this.byEnd[chunk.start];