/// <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 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> public override bool IsSubsetOf(IPermission target) { FileIOPermission fileIOPermission = FileIOPermission.Cast(target); if (fileIOPermission == null) { return(false); } if (fileIOPermission.IsEmpty()) { return(this.IsEmpty()); } if (this.IsUnrestricted()) { return(fileIOPermission.IsUnrestricted()); } return(fileIOPermission.IsUnrestricted() || ((this.m_AllFilesAccess & fileIOPermission.AllFiles) == this.m_AllFilesAccess && (this.m_AllLocalFilesAccess & fileIOPermission.AllLocalFiles) == this.m_AllLocalFilesAccess && FileIOPermission.KeyIsSubsetOf(this.appendList, fileIOPermission.appendList) && FileIOPermission.KeyIsSubsetOf(this.readList, fileIOPermission.readList) && FileIOPermission.KeyIsSubsetOf(this.writeList, fileIOPermission.writeList) && FileIOPermission.KeyIsSubsetOf(this.pathList, fileIOPermission.pathList))); }