| /* |
| * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * There was a bug in the old Lower that didn't fully propagate type information |
| * by way of assignment. 'q' in the example below would have finished a double |
| * even though it can get an object value through the assignment 'q = l' |
| * |
| * Furthermore, this caused type coercion to be done at q = l, and not a q = q * 2, |
| * which is a bug. This test ensures it happens in the correct order |
| * |
| * @test |
| * @run |
| */ |
| |
| function createObject() { |
| var obj = { valueOf: function() { print("toNumber coercion"); return 17; }} |
| return obj; |
| } |
| |
| function f() { |
| var l = 1.2; //number |
| var q = 2.3; //number |
| for (var i = 0; i < 2; i++) { |
| q = l; // q = toNumber(l), no coercion here |
| print("assignment done"); |
| q = q * 2; // q = q * 2, coercion here |
| print("multiplication done"); |
| l = createObject(); |
| } |
| } |
| |
| f(); |