SecurityCriticalDataForSet.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Shared / MS / Internal / SecurityCriticalDataForSet.cs / 1305600 / SecurityCriticalDataForSet.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// Description: 
//              This is a helper class to facilate the storage of data that's Critical for set. 
//              The data itself is not information disclosure but the value controls a critical
//              operation. 
//
//              For example a filepath variable might control what part of the file system the
//              code gets access to.
// 
// History:
//  01/30/05 : [....] Created. 
// 
//---------------------------------------------------------------------------
using System ; 
using System.Security ;
#if !SILVERLIGHTXAML

#if WINDOWS_BASE 
    using MS.Internal.WindowsBase;
#elif PRESENTATION_CORE 
    using MS.Internal.PresentationCore; 
#elif PRESENTATIONFRAMEWORK
    using MS.Internal.PresentationFramework; 
#elif PRESENTATIONUI
    using MS.Internal.PresentationUI;
#elif DRT
    using MS.Internal.Drt; 
#elif SYSTEM_XAML
    using MS.Internal.WindowsBase; 
#else 
#error Attempt to use FriendAccessAllowedAttribute from an unknown assembly.
using MS.Internal.YourAssemblyName; 
#endif

#if SYSTEM_XAML
namespace MS.Internal.Xaml 
#else
namespace MS.Internal 
#endif 
{
    [FriendAccessAllowed] // Built into Base, also used by Core and Framework. 
    [Serializable]
    internal struct SecurityCriticalDataForSet
    {
        ///  
        ///    Critical - "by definition" - this class is intended only for data that's
        ///               Critical for setting. 
        ///  
        [SecurityCritical]
        internal SecurityCriticalDataForSet(T value) 
        {
            _value = value;
        }
 
        /// 
        ///    Critical - Setter is Critical "by definition" - this class is intended only 
        ///               for data that's Critical for setting. 
        ///     Safe - get is safe by definition.
        ///     Not Safe - set is not safe by definition. 
        /// 
        internal T Value
        {
        #if DEBUG 
            [System.Diagnostics.DebuggerStepThrough]
        #endif 
            [SecurityCritical, SecurityTreatAsSafe] 
            get
            { 
                return _value;
            }

        #if DEBUG 
            [System.Diagnostics.DebuggerStepThrough]
        #endif 
            [SecurityCritical] 
            set
            { 
                _value = value;
            }
        }
 
        /// 
        /// Critical - by definition as this data is Critical for set. 
        /// > 
        [SecurityCritical]
        private T _value; 
    }
}
#endif
 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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