// Copyright 2013 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 var gdpRatio = 16/9; function Foo(initialX, initialY, initialScale, initialMapHeight) { this.ORIGIN = { x: initialX, y: initialY }; this.scale = initialScale; this.mapHeight = initialMapHeight; } Foo.prototype.bar = function (x, y, xOffset, yOffset) { var tileHeight = 64 * 0.25 * this.scale, tileWidth = 128 * 0.25 * this.scale, xOffset = xOffset * 0.5 || 0, yOffset = yOffset * 0.5 || 0; var xPos = ((xOffset) * gdpRatio) + this.ORIGIN.x * this.scale - ((y * tileWidth ) * gdpRatio) + ((x * tileWidth ) * gdpRatio); var yPos = ((yOffset) * gdpRatio) + this.ORIGIN.y * this.scale + ((y * tileHeight) * gdpRatio) + ((x * tileHeight) * gdpRatio); xPos = xPos - Math.round(((tileWidth) * gdpRatio)) + this.mapHeight * Math.round(((tileWidth) * gdpRatio)); return { x: Math.floor(xPos), y: Math.floor(yPos) }; } var f = new Foo(10, 20, 2.5, 400); function baz() { var b = f.bar(1.1, 2.2, 3.3, 4.4); assertEquals(56529, b.x); assertEquals(288, b.y); } %PrepareFunctionForOptimization(Foo.prototype.bar); baz(); baz(); %OptimizeFunctionOnNextCall(Foo.prototype.bar); baz();