From 0d323665393764062759dbccd9972b8ff3827f0b Mon Sep 17 00:00:00 2001
From: Rich Harris <richard.a.harris@gmail.com>
Date: Tue, 14 Jul 2015 10:08:57 -0400
Subject: [PATCH] fix infinite loop

---
 src/utils/path.js | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/utils/path.js b/src/utils/path.js
index 6023d78..32df39c 100644
--- a/src/utils/path.js
+++ b/src/utils/path.js
@@ -32,12 +32,11 @@ export function relative ( from, to ) {
 	}
 
 	while ( toParts[0] && toParts[0][0] === '.' ) {
-		if ( toParts[0] === '.' ) {
-			toParts.shift();
-		} else if ( toParts[0] === '..' ) {
+		const toPart = toParts.shift();
+		if ( toPart === '..' ) {
 			fromParts.pop();
-		} else {
-			throw new Error( `Unexpected path part (${toParts[0]})` );
+		} else if ( toPart !== '.' ) {
+			throw new Error( `Unexpected path part (${toPart})` );
 		}
 	}
 
@@ -58,10 +57,11 @@ export function resolve ( ...paths ) {
 			const parts = path.split( /[\/\\]/ );
 
 			while ( parts[0] && parts[0][0] === '.' ) {
-				if ( parts[0] === '.' ) {
-					parts.shift();
-				} else if ( parts[0] === '..' ) {
+				const part = parts.shift();
+				if ( part === '..' ) {
 					resolvedParts.pop();
+				} else if ( part !== '.' ) {
+					throw new Error( `Unexpected path part (${part})` );
 				}
 			}