1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  * 
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  * 
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  * 
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  * 
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /**
  25  * Make sure ECMAScript 6 features are not available in ES5 mode.
  26  *
  27  * @test
  28  * @run
  29  */
  30 
  31 function checkUndefined(name, object) {
  32     if (typeof object[name] !== 'undefined' || name in object) {
  33         Assert.fail(name + ' is defined in ' + object);
  34     }
  35 }
  36 
  37 checkUndefined('Symbol', this);
  38 checkUndefined('Map', this);
  39 checkUndefined('Set', this);
  40 checkUndefined('WeakMap', this);
  41 checkUndefined('WeakSet', this);
  42 checkUndefined('getOwnPropertySymbols', Object);
  43 checkUndefined('entries', Array.prototype);
  44 checkUndefined('values', Array.prototype);
  45 checkUndefined('keys', Array.prototype);
  46 
  47 function expectError(src, msg, error) {
  48     try {
  49         eval(src);
  50         Assert.fail(msg);
  51     } catch (e) {
  52         if (e.name !== error) {
  53             Assert.fail('Unexpected error: ' + e);
  54         }
  55     }
  56 }
  57 
  58 expectError('let i = 0', 'let', 'SyntaxError');
  59 expectError('const i = 0', 'const', 'SyntaxError');
  60 expectError('for (let i = 0; i < 10; i++) print(i)', 'for-let', 'SyntaxError');
  61 expectError('0b0', 'numeric literal', 'SyntaxError');
  62 expectError('0o0', 'numeric litera', 'SyntaxError');
  63 expectError('`text`', 'template literal', 'SyntaxError');
  64 expectError('`${ x }`', 'template literal', 'SyntaxError');
  65 expectError('`text ${ x } text`', 'template literal', 'SyntaxError');
  66 expectError('f`text`', 'template literal', 'SyntaxError');