// Copyright 2010 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
//     * Neither the name of Google Inc. nor the names of its
//       contributors may be used to endorse or promote products derived
//       from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// Flags: --allow-natives-syntax

function ArrayLength(a) { return a.length; }

function Test(a0, a2, a5) {
  assertEquals(0, ArrayLength(a0));
  assertEquals(2, ArrayLength(a2));
  assertEquals(5, ArrayLength(a5));
}

var a0 = [];
var a2 = [1,2];
var a5 = [1,2,3,4,5];
%PrepareFunctionForOptimization(ArrayLength);
for (var i = 0; i < 5; i++) Test(a0, a2, a5);
%OptimizeFunctionOnNextCall(ArrayLength);
Test(a0, a2, a5);
%PrepareFunctionForOptimization(Test);
%OptimizeFunctionOnNextCall(Test);
Test(a0, a2, a5);
assertEquals("undefined", typeof(ArrayLength(0)));
%PrepareFunctionForOptimization(Test);
for (var i = 0; i < 5; i++) Test(a0, a2, a5);
%OptimizeFunctionOnNextCall(Test);
Test(a0, a2, a5);
assertEquals(4, ArrayLength("hest"));