зеркало из https://github.com/mozilla/pjs.git
99 строки
3.4 KiB
JavaScript
99 строки
3.4 KiB
JavaScript
/* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code, released March
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* 31, 1998.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*
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*/
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/**
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File Name: 12.6.3-8-n.js
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ECMA Section: 12.6.3 The for...in Statement
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Description:
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The production IterationStatement : for ( LeftHandSideExpression in Expression )
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Statement is evaluated as follows:
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1. Evaluate the Expression.
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2. Call GetValue(Result(1)).
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3. Call ToObject(Result(2)).
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4. Let C be "normal completion".
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5. Get the name of the next property of Result(3) that doesn't have the
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DontEnum attribute. If there is no such property, go to step 14.
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6. Evaluate the LeftHandSideExpression ( it may be evaluated repeatedly).
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7. Call PutValue(Result(6), Result(5)). PutValue( V, W ):
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1. If Type(V) is not Reference, generate a runtime error.
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2. Call GetBase(V).
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3. If Result(2) is null, go to step 6.
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4. Call the [[Put]] method of Result(2), passing GetPropertyName(V)
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for the property name and W for the value.
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5. Return.
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6. Call the [[Put]] method for the global object, passing
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GetPropertyName(V) for the property name and W for the value.
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7. Return.
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8. Evaluate Statement.
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9. If Result(8) is a value completion, change C to be "normal completion
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after value V" where V is the value carried by Result(8).
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10. If Result(8) is a break completion, go to step 14.
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11. If Result(8) is a continue completion, go to step 5.
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12. If Result(8) is a return completion, return Result(8).
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13. Go to step 5.
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14. Return C.
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Author: christine@netscape.com
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Date: 11 september 1997
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*/
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var SECTION = "12.6.3-4";
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var VERSION = "ECMA_1";
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startTest();
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var TITLE = "The for..in statment";
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var error = err;
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writeHeaderToLog( SECTION + " "+ TITLE);
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var testcases = new Array();
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// for ( LeftHandSideExpression in Expression )
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// LeftHandSideExpression:NewExpression:MemberExpression
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testcases[testcases.length] = new TestCase( SECTION,
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"bad left-hand side expression",
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"error",
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"" );
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var o = new MyObject();
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var result = 0;
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for ( 1 in o) {
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result += this[p];
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}
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test();
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function test() {
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for ( tc=0; tc < testcases.length; tc++ ) {
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testcases[tc].passed = writeTestCaseResult(
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testcases[tc].expect,
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testcases[tc].actual,
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testcases[tc].description +" = "+
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testcases[tc].actual );
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testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
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}
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stopTest();
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return ( testcases );
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}
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function MyObject() {
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this.value = 2;
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this[0] = 4;
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return this;
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} |