text: // Copyright 2008 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
  // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  // Flags: --allow-natives-syntax
  
  // Test for http://code.google.com/p/v8/issues/detail?id=334
  
  var READ_ONLY   = 1;
  var DONT_ENUM   = 2;
  var DONT_DELETE = 4;
  
  function func1(){}
  function func2(){}
  
  var object = {__proto__:{}};
  %AddProperty(object, "foo", func1, DONT_ENUM | DONT_DELETE);
  %AddProperty(object, "bar", func1, DONT_ENUM | READ_ONLY);
  %AddProperty(object, "baz", func1, DONT_DELETE | READ_ONLY);
  %AddProperty(object.__proto__, "bif", func1, DONT_ENUM | DONT_DELETE);
  object.bif = func2;
  
  function enumerable(obj) {
    var res = [];
    for (var i in obj) {
      res.push(i);
    }
    res.sort();
    return res;
  }
  
  // Sanity check: expected initial state.
  assertArrayEquals(["baz", "bif"], enumerable(object), "enum0");
  assertFalse(delete object.foo, "delete foo");
  assertFalse(delete object.baz, "delete baz");
  assertEquals(func1, object.foo, "read foo");
  assertEquals(func1, object.bar, "read bar");
  assertEquals(func1, object.baz, "read baz");
  assertEquals(func2, object.bif, "read bif");
  
  // Can't assign to READ_ONLY.
  object.bar = "NO WAY";
  assertEquals(func1, object.bar, "read bar 2");
  assertArrayEquals(["baz", "bif"], enumerable(object), "enum1");
  
  // Assignment to non-readonly. Assignment shouldn't change attributes!
  object.foo = func2;
  assertArrayEquals(["baz", "bif"], enumerable(object), "enum2");
  assertFalse(delete object.foo, "delete foo 2");
  
  // Delete should erase attributes if value set again.
  assertTrue(delete object.bar, "delete bar");
  assertFalse("bar" in object, "has bar");
  object.bar = func2;
  assertTrue("bar" in object, "has bar 2");
  assertEquals(func2, object.bar, "read bar 3");
  
  assertArrayEquals(["bar", "baz", "bif"], enumerable(object), "enum3");
  
  // Unshadowing a prototype property exposes its attributes.
  assertTrue(delete object.bif, "delete bif");
  assertArrayEquals(["bar", "baz"], enumerable(object), "enum4");
  assertEquals(func1, object.bif, "read bif 2");
  // Can't delete prototype property.
  assertTrue(delete object.bif, "delete bif 2");
  assertArrayEquals(["bar", "baz"], enumerable(object), "enum5");
  assertEquals(func1, object.bif, "read bif3");
  