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-/* The contents of this file are subject to the Netscape Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/NPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is Mozilla Communicator client code, released March
- * 31, 1998.
- *
- * The Initial Developer of the Original Code is Netscape Communications
- * Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- */
-/**
- File Name: 11.6.1-1.js
- ECMA Section: 11.6.1 The addition operator ( + )
- Description:
-
- The addition operator either performs string concatenation or numeric
- addition.
-
- The production AdditiveExpression : AdditiveExpression + MultiplicativeExpression
- is evaluated as follows:
-
- 1. Evaluate AdditiveExpression.
- 2. Call GetValue(Result(1)).
- 3. Evaluate MultiplicativeExpression.
- 4. Call GetValue(Result(3)).
- 5. Call ToPrimitive(Result(2)).
- 6. Call ToPrimitive(Result(4)).
- 7. If Type(Result(5)) is String or Type(Result(6)) is String, go to step 12.
- (Note that this step differs from step 3 in the algorithm for comparison
- for the relational operators in using or instead of and.)
- 8. Call ToNumber(Result(5)).
- 9. Call ToNumber(Result(6)).
- 10. Apply the addition operation to Result(8) and Result(9). See the discussion below (11.6.3).
- 11. Return Result(10).
- 12. Call ToString(Result(5)).
- 13. Call ToString(Result(6)).
- 14. Concatenate Result(12) followed by Result(13).
- 15. Return Result(14).
-
- Note that no hint is provided in the calls to ToPrimitive in steps 5 and 6.
- All native ECMAScript objects except Date objects handle the absence of a
- hint as if the hint Number were given; Date objects handle the absence of a
- hint as if the hint String were given. Host objects may handle the absence
- of a hint in some other manner.
-
- This test does not cover cases where the Additive or Mulplicative expression
- ToPrimitive is string.
-
- Author: christine@netscape.com
- Date: 12 november 1997
-*/
- var SECTION = "11.6.1-1";
- var VERSION = "ECMA_1";
- startTest();
-
- var testcases = getTestCases();
-
- writeHeaderToLog( SECTION + " The Addition operator ( + )");
- test();
-
-function test() {
- for ( tc=0; tc < testcases.length; tc++ ) {
- testcases[tc].passed = writeTestCaseResult(
- testcases[tc].expect,
- testcases[tc].actual,
- testcases[tc].description +" = "+
- testcases[tc].actual );
-
- testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
- }
- stopTest();
- return ( testcases );
-}
-
-function getTestCases() {
- var array = new Array();
- var item = 0;
-
- // tests for boolean primitive, boolean object, Object object, a "MyObject" whose value is
- // a boolean primitive and a boolean object, and "MyValuelessObject", where the value is
- // set in the object's prototype, not the object itself.
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = true; var EXP_2 = false; EXP_1 + EXP_2",
- 1,
- eval("var EXP_1 = true; var EXP_2 = false; EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 + EXP_2",
- 1,
- eval("var EXP_1 = new Boolean(true); var EXP_2 = new Boolean(false); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 + EXP_2",
- 1,
- eval("var EXP_1 = new Object(true); var EXP_2 = new Object(false); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2",
- 1,
- eval("var EXP_1 = new Object(new Boolean(true)); var EXP_2 = new Object(new Boolean(false)); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 + EXP_2",
- 1,
- eval("var EXP_1 = new MyObject(true); var EXP_2 = new MyObject(false); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2",
- "[object Object][object Object]",
- eval("var EXP_1 = new MyObject(new Boolean(true)); var EXP_2 = new MyObject(new Boolean(false)); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyValuelessObject(true); var EXP_2 = new MyValuelessObject(false); EXP_1 + EXP_2",
- 1,
- eval("var EXP_1 = new MyValuelessObject(true); var EXP_2 = new MyValuelessObject(false); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyValuelessObject(new Boolean(true)); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 + EXP_2",
- "truefalse",
- eval("var EXP_1 = new MyValuelessObject(new Boolean(true)); var EXP_2 = new MyValuelessObject(new Boolean(false)); EXP_1 + EXP_2") );
-
- // tests for number primitive, number object, Object object, a "MyObject" whose value is
- // a number primitive and a number object, and "MyValuelessObject", where the value is
- // set in the object's prototype, not the object itself.
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = 100; var EXP_2 = -1; EXP_1 + EXP_2",
- 99,
- eval("var EXP_1 = 100; var EXP_2 = -1; EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new Number(100); var EXP_2 = new Number(-1); EXP_1 + EXP_2",
- 99,
- eval("var EXP_1 = new Number(100); var EXP_2 = new Number(-1); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new Object(100); var EXP_2 = new Object(-1); EXP_1 + EXP_2",
- 99,
- eval("var EXP_1 = new Object(100); var EXP_2 = new Object(-1); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2",
- 99,
- eval("var EXP_1 = new Object(new Number(100)); var EXP_2 = new Object(new Number(-1)); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(-1); EXP_1 + EXP_2",
- 99,
- eval("var EXP_1 = new MyObject(100); var EXP_2 = new MyObject(-1); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2",
- "[object Object][object Object]",
- eval("var EXP_1 = new MyObject(new Number(100)); var EXP_2 = new MyObject(new Number(-1)); EXP_1 + EXP_2") );
-
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject(-1); EXP_1 + EXP_2",
- 99,
- eval("var EXP_1 = new MyValuelessObject(100); var EXP_2 = new MyValuelessObject(-1); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyValuelessObject(new Number(100)); var EXP_2 = new MyValuelessObject(new Number(-1)); EXP_1 + EXP_2",
- "100-1",
- eval("var EXP_1 = new MyValuelessObject(new Number(100)); var EXP_2 = new MyValuelessObject(new Number(-1)); EXP_1 + EXP_2") );
-
- array[item++] = new TestCase( SECTION,
- "var EXP_1 = new MyValuelessObject( new MyValuelessObject( new Boolean(true) ) ); EXP_1 + EXP_1",
- "truetrue",
- eval("var EXP_1 = new MyValuelessObject( new MyValuelessObject( new Boolean(true) ) ); EXP_1 + EXP_1") );
-
- return ( array );
-}
-
-
-function MyProtoValuelessObject() {
- this.valueOf = new Function ( "" );
- this.__proto__ = null;
-}
-
-function MyProtolessObject( value ) {
- this.valueOf = new Function( "return this.value" );
- this.__proto__ = null;
- this.value = value;
-}
-
-function MyValuelessObject(value) {
- this.__proto__ = new MyPrototypeObject(value);
-}
-function MyPrototypeObject(value) {
- this.valueOf = new Function( "return this.value;" );
- this.toString = new Function( "return (this.value + '');" );
- this.value = value;
-}
-
-function MyObject( value ) {
- this.valueOf = new Function( "return this.value" );
- this.value = value;
-}
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