From ef045b971834a34e5181f8e2eeac34644e2ede41 Mon Sep 17 00:00:00 2001
From: Ingvar Stepanyan <me@rreverser.com>
Date: Thu, 31 Jul 2014 14:33:40 +0300
Subject: [PATCH] Remove `copyToken` from acorn_loose (not needed anymore).

---
 acorn_loose.js | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/acorn_loose.js b/acorn_loose.js
index b7bc56dd4f..af0e97add6 100644
--- a/acorn_loose.js
+++ b/acorn_loose.js
@@ -131,22 +131,9 @@
     fetchToken.jumpTo(pos, reAllowed);
   }
 
-  function copyToken(token) {
-    var copy = {start: token.start, end: token.end, type: token.type, value: token.value};
-    if (options.locations) {
-      copy.startLoc = token.startLoc;
-      copy.endLoc = token.endLoc;
-    }
-    return copy;
-  }
-
   function lookAhead(n) {
-    // Copy token objects, because fetchToken will overwrite the one
-    // it returns, and in this case we still need it
-    if (!ahead.length)
-      token = copyToken(token);
     while (n > ahead.length)
-      ahead.push(copyToken(readToken()));
+      ahead.push(readToken());
     return ahead[n-1];
   }