diff options
Diffstat (limited to 'test/mjsunit/compiler/pic.js')
-rw-r--r-- | test/mjsunit/compiler/pic.js | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/test/mjsunit/compiler/pic.js b/test/mjsunit/compiler/pic.js new file mode 100644 index 00000000..a0b5d8f9 --- /dev/null +++ b/test/mjsunit/compiler/pic.js @@ -0,0 +1,66 @@ +// 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. + +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 < 1000000; i++) { + 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); |