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// 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
// 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
function GetX(o) { return o.x; }
function CallF(o) { return o.f(); }
function SetX(o) { o.x = 42; }
function SetXY(o,y) { return o.x = y; }
function Test(o) {
SetX(o);
assertEquals(42, GetX(o));
assertEquals(87, SetXY(o, 87));
assertEquals(87, GetX(o));
assertTrue(SetXY(o, o) === o);
assertTrue(o === GetX(o), "o === GetX(o)");
assertEquals("hest", SetXY(o, "hest"));
assertEquals("hest", GetX(o));
assertTrue(SetXY(o, Test) === Test);
assertTrue(Test === GetX(o), "Test === GetX(o)");
assertEquals(99, CallF(o));
}
// Create a bunch of objects with different layouts.
var o1 = { x: 0, y: 1 };
var o2 = { y: 1, x: 0 };
var o3 = { y: 1, z: 2, x: 0 };
o1.f = o2.f = o3.f = function() { return 99; }
// Run the test until we're fairly sure we've optimized the
// polymorphic property access.
for (var i = 0; i < 5; i++) {
Test(o1);
Test(o2);
Test(o3);
}
%OptimizeFunctionOnNextCall(Test);
Test(o1);
Test(o2);
Test(o3);
// Make sure that the following doesn't crash.
GetX(0);
SetX(0);
SetXY(0, 0);
assertThrows("CallF(0)", TypeError);
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