| /* -*- tab-width: 2; indent-tabs-mode: nil; js-indent-level: 2 -*- */ |
| /* This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| |
| /** |
| File Name: 12.6.3-10.js |
| ECMA Section: 12.6.3 The for...in Statement |
| Description: |
| The production IterationStatement : for ( LeftHandSideExpression in Expression ) |
| Statement is evaluated as follows: |
| |
| 1. Evaluate the Expression. |
| 2. Call GetValue(Result(1)). |
| 3. Call ToObject(Result(2)). |
| 4. Let C be "normal completion". |
| 5. Get the name of the next property of Result(3) that doesn't have the |
| DontEnum attribute. If there is no such property, go to step 14. |
| 6. Evaluate the LeftHandSideExpression (it may be evaluated repeatedly). |
| 7. Call PutValue(Result(6), Result(5)). PutValue( V, W ): |
| 1. If Type(V) is not Reference, generate a runtime error. |
| 2. Call GetBase(V). |
| 3. If Result(2) is null, go to step 6. |
| 4. Call the [[Put]] method of Result(2), passing GetPropertyName(V) |
| for the property name and W for the value. |
| 5. Return. |
| 6. Call the [[Put]] method for the global object, passing |
| GetPropertyName(V) for the property name and W for the value. |
| 7. Return. |
| 8. Evaluate Statement. |
| 9. If Result(8) is a value completion, change C to be "normal completion |
| after value V" where V is the value carried by Result(8). |
| 10. If Result(8) is a break completion, go to step 14. |
| 11. If Result(8) is a continue completion, go to step 5. |
| 12. If Result(8) is a return completion, return Result(8). |
| 13. Go to step 5. |
| 14. Return C. |
| |
| Author: christine@netscape.com |
| Date: 11 september 1997 |
| */ |
| var SECTION = "12.6.3-10"; |
| var VERSION = "ECMA_1"; |
| startTest(); |
| var TITLE = "The for..in statement"; |
| |
| writeHeaderToLog( SECTION + " "+ TITLE); |
| |
| // for ( LeftHandSideExpression in Expression ) |
| // LeftHandSideExpression:NewExpression:MemberExpression |
| |
| var count = 0; |
| function f() { count++; return new Array("h","e","l","l","o"); } |
| |
| var result = ""; |
| for ( p in f() ) { result += f()[p] }; |
| |
| new TestCase( SECTION, |
| "count = 0; result = \"\"; "+ |
| "function f() { count++; return new Array(\"h\",\"e\",\"l\",\"l\",\"o\"); }"+ |
| "for ( p in f() ) { result += f()[p] }; count", |
| 6, |
| count ); |
| |
| new TestCase( SECTION, |
| "result", |
| "hello", |
| result ); |
| |
| // LeftHandSideExpression:NewExpression:MemberExpression [ Expression ] |
| // LeftHandSideExpression:NewExpression:MemberExpression . Identifier |
| // LeftHandSideExpression:NewExpression:new MemberExpression Arguments |
| // LeftHandSideExpression:NewExpression:PrimaryExpression:( Expression ) |
| // LeftHandSideExpression:CallExpression:MemberExpression Arguments |
| // LeftHandSideExpression:CallExpression Arguments |
| // LeftHandSideExpression:CallExpression [ Expression ] |
| // LeftHandSideExpression:CallExpression . Identifier |
| |
| test(); |
| |