// Copyright 2013 the V8 project authors. All rights reserved. // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions // are met: // 1. Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // 2. 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. // // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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. description( "Tests that a dead use of Math.min(a,b) at least speculates that its arguments are indeed numbers." ); function foo(a, b) { Math.min(a.f, b.f); return 100; } function bar(a, b) { Math.min(a.f, b.f); return 100; } var x = {f:42}; var y = {f:43}; var ok = null; var expected = 42; var empty = ""; for (var i = 0; i < 200; ++i) { if (i == 150) { x = {f:{valueOf:function(){ ok = i; return 37; }}}; expected = 37; } var result = eval(empty + "foo(x, y)"); if (i >= 150) shouldBe("ok", "" + i); shouldBe("result", "100"); } x = {f:42}; y = {f:43}; ok = null; expected = 42; for (var i = 0; i < 200; ++i) { if (i == 150) { y = {f:{valueOf:function(){ ok = i; return 37; }}}; expected = 37; } var result = eval(empty + "bar(x, y)"); if (i >= 150) shouldBe("ok", "" + i); shouldBe("result", "100"); }