michael@0: // Copyright 2011 Google Inc.  All rights reserved.
michael@0: // This code is governed by the BSD license found in the LICENSE file.
michael@0: 
michael@0: /**
michael@0:  * A strict delete should either succeed, returning true, or it
michael@0:  * should fail by throwing a TypeError. Under no circumstances
michael@0:  * should a strict delete return false.
michael@0:  *
michael@0:  * @path ch11/11.4/11.4.1/S11.4.1_A5.js
michael@0:  * @description See if a strict delete returns false when deleting a
michael@0:  * non-standard property.
michael@0:  * @onlyStrict
michael@0:  */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: var reNames = Object.getOwnPropertyNames(RegExp);
michael@0: for (var i = 0, len = reNames.length; i < len; i++) {
michael@0:   var reName = reNames[i];
michael@0:   if (reName !== 'prototype') {
michael@0:     var deleted = 'unassigned';
michael@0:     try {
michael@0:       deleted = delete RegExp[reName];
michael@0:     } catch (err) {
michael@0:       if (!(err instanceof TypeError)) {
michael@0:         $ERROR('#1: strict delete threw a non-TypeError: ' + err);
michael@0:       }
michael@0:       // fall through
michael@0:     }
michael@0:     if (deleted === false) {
michael@0:       $ERROR('#2: Strict delete returned false');
michael@0:     }
michael@0:   }
michael@0: }
michael@0: