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mscorlib/System/Security/Permissions/IsolatedStorageFilePermission.cs

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+using System;
+using System.Runtime.InteropServices;
+
+namespace System.Security.Permissions
+{
+	/// <summary>Specifies the allowed usage of a private virtual file system. This class cannot be inherited.</summary>
+	// Token: 0x02000550 RID: 1360
+	[ComVisible(true)]
+	[Serializable]
+	public sealed class IsolatedStorageFilePermission : IsolatedStoragePermission, IBuiltInPermission
+	{
+		/// <summary>Initializes a new instance of the <see cref="T:System.Security.Permissions.IsolatedStorageFilePermission" /> class with either fully restricted or unrestricted permission as specified.</summary>
+		/// <param name="state">One of the <see cref="T:System.Security.Permissions.PermissionState" /> values. </param>
+		/// <exception cref="T:System.ArgumentException">The <paramref name="state" /> parameter is not a valid value of <see cref="T:System.Security.Permissions.PermissionState" />. </exception>
+		// Token: 0x060031B0 RID: 12720 RVA: 0x000AACF8 File Offset: 0x000A8EF8
+		public IsolatedStorageFilePermission(PermissionState state)
+			: base(state)
+		{
+		}
+
+		// Token: 0x060031B1 RID: 12721 RVA: 0x000AAD04 File Offset: 0x000A8F04
+		int IBuiltInPermission.GetTokenIndex()
+		{
+			return 3;
+		}
+
+		/// <summary>Creates and returns an identical copy of the current permission.</summary>
+		/// <returns>A copy of the current permission.</returns>
+		// Token: 0x060031B2 RID: 12722 RVA: 0x000AAD08 File Offset: 0x000A8F08
+		public override IPermission Copy()
+		{
+			return new IsolatedStorageFilePermission(PermissionState.None)
+			{
+				m_userQuota = this.m_userQuota,
+				m_machineQuota = this.m_machineQuota,
+				m_expirationDays = this.m_expirationDays,
+				m_permanentData = this.m_permanentData,
+				m_allowed = this.m_allowed
+			};
+		}
+
+		/// <summary>Creates and returns a permission that is the intersection of the current permission and the specified permission.</summary>
+		/// <returns>A new permission that represents the intersection of the current permission and the specified permission. This new permission is null if the intersection is empty.</returns>
+		/// <param name="target">A permission to intersect with the current permission object. It must be of the same type as the current permission. </param>
+		/// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not of the same type as the current permission. </exception>
+		// Token: 0x060031B3 RID: 12723 RVA: 0x000AAD5C File Offset: 0x000A8F5C
+		public override IPermission Intersect(IPermission target)
+		{
+			IsolatedStorageFilePermission isolatedStorageFilePermission = this.Cast(target);
+			if (isolatedStorageFilePermission == null)
+			{
+				return null;
+			}
+			if (base.IsEmpty() && isolatedStorageFilePermission.IsEmpty())
+			{
+				return null;
+			}
+			return new IsolatedStorageFilePermission(PermissionState.None)
+			{
+				m_userQuota = ((this.m_userQuota >= isolatedStorageFilePermission.m_userQuota) ? isolatedStorageFilePermission.m_userQuota : this.m_userQuota),
+				m_machineQuota = ((this.m_machineQuota >= isolatedStorageFilePermission.m_machineQuota) ? isolatedStorageFilePermission.m_machineQuota : this.m_machineQuota),
+				m_expirationDays = ((this.m_expirationDays >= isolatedStorageFilePermission.m_expirationDays) ? isolatedStorageFilePermission.m_expirationDays : this.m_expirationDays),
+				m_permanentData = (this.m_permanentData && isolatedStorageFilePermission.m_permanentData),
+				UsageAllowed = ((this.m_allowed >= isolatedStorageFilePermission.m_allowed) ? isolatedStorageFilePermission.m_allowed : this.m_allowed)
+			};
+		}
+
+		/// <summary>Determines whether the current permission is a subset of the specified permission.</summary>
+		/// <returns>true if the current permission is a subset of the specified permission; otherwise, false.</returns>
+		/// <param name="target">A permission that is to be tested for the subset relationship. This permission must be of the same type as the current permission. </param>
+		/// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not of the same type as the current permission. </exception>
+		// Token: 0x060031B4 RID: 12724 RVA: 0x000AAE54 File Offset: 0x000A9054
+		public override bool IsSubsetOf(IPermission target)
+		{
+			IsolatedStorageFilePermission isolatedStorageFilePermission = this.Cast(target);
+			if (isolatedStorageFilePermission == null)
+			{
+				return base.IsEmpty();
+			}
+			return isolatedStorageFilePermission.IsUnrestricted() || (this.m_userQuota <= isolatedStorageFilePermission.m_userQuota && this.m_machineQuota <= isolatedStorageFilePermission.m_machineQuota && this.m_expirationDays <= isolatedStorageFilePermission.m_expirationDays && this.m_permanentData == isolatedStorageFilePermission.m_permanentData && this.m_allowed <= isolatedStorageFilePermission.m_allowed);
+		}
+
+		/// <summary>Creates a permission that is the union of the current permission and the specified permission.</summary>
+		/// <returns>A new permission that represents the union of the current permission and the specified permission.</returns>
+		/// <param name="target">A permission to combine with the current permission. It must be of the same type as the current permission. </param>
+		/// <exception cref="T:System.ArgumentException">The <paramref name="target" /> parameter is not null and is not of the same type as the current permission. </exception>
+		// Token: 0x060031B5 RID: 12725 RVA: 0x000AAEE4 File Offset: 0x000A90E4
+		public override IPermission Union(IPermission target)
+		{
+			IsolatedStorageFilePermission isolatedStorageFilePermission = this.Cast(target);
+			if (isolatedStorageFilePermission == null)
+			{
+				return this.Copy();
+			}
+			return new IsolatedStorageFilePermission(PermissionState.None)
+			{
+				m_userQuota = ((this.m_userQuota <= isolatedStorageFilePermission.m_userQuota) ? isolatedStorageFilePermission.m_userQuota : this.m_userQuota),
+				m_machineQuota = ((this.m_machineQuota <= isolatedStorageFilePermission.m_machineQuota) ? isolatedStorageFilePermission.m_machineQuota : this.m_machineQuota),
+				m_expirationDays = ((this.m_expirationDays <= isolatedStorageFilePermission.m_expirationDays) ? isolatedStorageFilePermission.m_expirationDays : this.m_expirationDays),
+				m_permanentData = (this.m_permanentData || isolatedStorageFilePermission.m_permanentData),
+				UsageAllowed = ((this.m_allowed <= isolatedStorageFilePermission.m_allowed) ? isolatedStorageFilePermission.m_allowed : this.m_allowed)
+			};
+		}
+
+		/// <summary>Creates an XML encoding of the permission and its current state.</summary>
+		/// <returns>An XML encoding of the permission, including any state information.</returns>
+		// Token: 0x060031B6 RID: 12726 RVA: 0x000AAFC8 File Offset: 0x000A91C8
+		[MonoTODO("(2.0) new override - something must have been added ???")]
+		[ComVisible(false)]
+		public override SecurityElement ToXml()
+		{
+			return base.ToXml();
+		}
+
+		// Token: 0x060031B7 RID: 12727 RVA: 0x000AAFD0 File Offset: 0x000A91D0
+		private IsolatedStorageFilePermission Cast(IPermission target)
+		{
+			if (target == null)
+			{
+				return null;
+			}
+			IsolatedStorageFilePermission isolatedStorageFilePermission = target as IsolatedStorageFilePermission;
+			if (isolatedStorageFilePermission == null)
+			{
+				CodeAccessPermission.ThrowInvalidPermission(target, typeof(IsolatedStorageFilePermission));
+			}
+			return isolatedStorageFilePermission;
+		}
+
+		// Token: 0x04001468 RID: 5224
+		private const int version = 1;
+	}
+}