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165 lines
7.3 KiB
JavaScript
165 lines
7.3 KiB
JavaScript
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla Communicator client code, released
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* March 31, 1998.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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gTestfile = '11.6.1-2.js';
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/**
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File Name: 11.6.1-2.js
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ECMA Section: 11.6.1 The addition operator ( + )
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Description:
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The addition operator either performs string concatenation or numeric
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addition.
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The production AdditiveExpression : AdditiveExpression + MultiplicativeExpression
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is evaluated as follows:
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1. Evaluate AdditiveExpression.
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2. Call GetValue(Result(1)).
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3. Evaluate MultiplicativeExpression.
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4. Call GetValue(Result(3)).
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5. Call ToPrimitive(Result(2)).
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6. Call ToPrimitive(Result(4)).
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7. If Type(Result(5)) is String or Type(Result(6)) is String, go to step 12.
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(Note that this step differs from step 3 in the algorithm for comparison
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for the relational operators in using or instead of and.)
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8. Call ToNumber(Result(5)).
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9. Call ToNumber(Result(6)).
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10. Apply the addition operation to Result(8) and Result(9). See the discussion below (11.6.3).
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11. Return Result(10).
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12. Call ToString(Result(5)).
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13. Call ToString(Result(6)).
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14. Concatenate Result(12) followed by Result(13).
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15. Return Result(14).
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Note that no hint is provided in the calls to ToPrimitive in steps 5 and 6.
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All native ECMAScript objects except Date objects handle the absence of a
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hint as if the hint Number were given; Date objects handle the absence of a
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hint as if the hint String were given. Host objects may handle the absence
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of a hint in some other manner.
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This test does only covers cases where the Additive or Mulplicative expression
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ToPrimitive is a string.
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Author: christine@netscape.com
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Date: 12 november 1997
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*/
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var SECTION = "11.6.1-2";
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var VERSION = "ECMA_1";
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startTest();
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writeHeaderToLog( SECTION + " The Addition operator ( + )");
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// tests for boolean primitive, boolean object, Object object, a "MyObject" whose value is
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// a boolean primitive and a boolean object.
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new TestCase( SECTION,
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"var EXP_1 = 'string'; var EXP_2 = false; EXP_1 + EXP_2",
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"stringfalse",
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eval("var EXP_1 = 'string'; var EXP_2 = false; EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = true; var EXP_2 = 'string'; EXP_1 + EXP_2",
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"truestring",
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eval("var EXP_1 = true; var EXP_2 = 'string'; EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new Boolean(true); var EXP_2 = new String('string'); EXP_1 + EXP_2",
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"truestring",
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eval("var EXP_1 = new Boolean(true); var EXP_2 = new String('string'); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new Object(true); var EXP_2 = new Object('string'); EXP_1 + EXP_2",
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"truestring",
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eval("var EXP_1 = new Object(true); var EXP_2 = new Object('string'); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2",
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"stringfalse",
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eval("var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new MyObject(true); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2",
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"truestring",
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eval("var EXP_1 = new MyObject(true); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2",
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"[object Object][object Object]",
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eval("var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2") );
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// tests for number primitive, number object, Object object, a "MyObject" whose value is
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// a number primitive and a number object.
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new TestCase( SECTION,
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"var EXP_1 = 100; var EXP_2 = 'string'; EXP_1 + EXP_2",
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"100string",
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eval("var EXP_1 = 100; var EXP_2 = 'string'; EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new String('string'); var EXP_2 = new Number(-1); EXP_1 + EXP_2",
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"string-1",
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eval("var EXP_1 = new String('string'); var EXP_2 = new Number(-1); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new Object(100); var EXP_2 = new Object('string'); EXP_1 + EXP_2",
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"100string",
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eval("var EXP_1 = new Object(100); var EXP_2 = new Object('string'); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2",
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"string-1",
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eval("var EXP_1 = new Object(new String('string')); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new MyObject(100); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2",
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"100string",
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eval("var EXP_1 = new MyObject(100); var EXP_2 = new MyObject('string'); EXP_1 + EXP_2") );
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new TestCase( SECTION,
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"var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2",
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"[object Object][object Object]",
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eval("var EXP_1 = new MyObject(new String('string')); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2") );
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test();
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function MyObject( value ) {
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this.valueOf = new Function( "return this.value" );
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this.value = value;
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}
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