// Copyright (C) Copyright 2014 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 12.2.8
description: >
    Previously-created template objects should be retrieved from the internal
    template registry when their source is identical but their expressions
    evaluate to different values.
---*/
function tag(templateObject) {
  previousObject = templateObject;
}
var a = 1;
var b = 2;
var firstObject = null;
var previousObject = null;

tag`head${a}tail`;
firstObject = previousObject;
assert(firstObject !== null);
previousObject = null;

tag`head${b}tail`;
assert.sameValue(previousObject, firstObject);