jlaskey@3: /*
jlaskey@7:  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
jlaskey@3:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jlaskey@3:  * 
jlaskey@3:  * This code is free software; you can redistribute it and/or modify it
jlaskey@3:  * under the terms of the GNU General Public License version 2 only, as
jlaskey@3:  * published by the Free Software Foundation.
jlaskey@3:  * 
jlaskey@3:  * This code is distributed in the hope that it will be useful, but WITHOUT
jlaskey@3:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jlaskey@3:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jlaskey@3:  * version 2 for more details (a copy is included in the LICENSE file that
jlaskey@3:  * accompanied this code).
jlaskey@3:  * 
jlaskey@3:  * You should have received a copy of the GNU General Public License version
jlaskey@3:  * 2 along with this work; if not, write to the Free Software Foundation,
jlaskey@3:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jlaskey@3:  * 
jlaskey@3:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jlaskey@3:  * or visit www.oracle.com if you need additional information or have any
jlaskey@3:  * questions.
jlaskey@3:  */
jlaskey@3: 
jlaskey@3: /**
jlaskey@3:  * Checks for binary addition operator.
jlaskey@3:  *
jlaskey@3:  * @test
jlaskey@3:  * @run
jlaskey@3:  */
jlaskey@3: 
jlaskey@3: // number addition
jlaskey@3: var x = Math.PI + Math.E;
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: // string concatenation
jlaskey@3: x = "hello, " + "world";
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: // string + number
jlaskey@3: x = "E is " + Math.E;
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: // number + string
jlaskey@3: x = Math.PI + " is PI";
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: // number + undefined
jlaskey@3: x = Math.E + undefined;
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: x = undefined + Math.PI;
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: // object with "valueOf" method added to number
jlaskey@3: var obj = {
jlaskey@3:     valueOf: function() { return 44.55; }
jlaskey@3: };
jlaskey@3: 
jlaskey@3: x = 45.66 + obj;
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: x = obj + 3.14;
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: // object with "toString" method added to number
jlaskey@3: var obj2 = {
jlaskey@3:     toString: function() { return "obj2.toString"; }
jlaskey@3: };
jlaskey@3: 
jlaskey@3: x = "hello, " + obj2;
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);
jlaskey@3: 
jlaskey@3: x = obj2 + " hello";
jlaskey@3: print(typeof(x));
jlaskey@3: print(x);