PermissionSetEnumerator.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Security / PermissionSetEnumerator.cs / 1 / PermissionSetEnumerator.cs
                        

                        
                            // ==++== 
//
//   Copyright (c) Microsoft Corporation.  All rights reserved.
//
// ==--== 

namespace System.Security 
{ 
    //PermissionSetEnumerator.cs
 
    using System;
    using System.Collections;
    using TokenBasedSetEnumerator = System.Security.Util.TokenBasedSetEnumerator;
    using TokenBasedSet = System.Security.Util.TokenBasedSet; 

    internal class PermissionSetEnumerator : IEnumerator 
    { 
        PermissionSetEnumeratorInternal enm;
 
        public Object Current
        {
            get
            { 
                return enm.Current;
            } 
        } 

        public bool MoveNext() 
        {
            return enm.MoveNext();
        }
 
        public void Reset()
        { 
            enm.Reset(); 
        }
 
        internal PermissionSetEnumerator(PermissionSet permSet)
        {
            enm = new PermissionSetEnumeratorInternal(permSet);
        } 
    }
 
    internal struct PermissionSetEnumeratorInternal 
    {
        private PermissionSet m_permSet; 
        private TokenBasedSetEnumerator enm;

        public Object Current
        { 
            get
            { 
                return enm.Current; 
            }
        } 

        internal PermissionSetEnumeratorInternal(PermissionSet permSet)
        {
            m_permSet = permSet; 
            enm = new TokenBasedSetEnumerator(permSet.m_permSet);
        } 
 
        public int GetCurrentIndex()
        { 
            return enm.Index;
        }

        public void Reset() 
        {
            enm.Reset(); 
        } 

        public bool MoveNext() 
        {
            while (enm.MoveNext())
            {
                Object obj = enm.Current; 
                IPermission perm = obj as IPermission;
                if (perm != null) 
                { 
                    enm.Current = perm;
                    return true; 
                }

                SecurityElement elem = obj as SecurityElement;
 
                if (elem != null)
                { 
                    perm = m_permSet.CreatePermission(elem, enm.Index); 
                    if (perm != null)
                    { 
                        enm.Current = perm;
                        return true;
                    }
                } 
            }
            return false; 
        } 
    }
}

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