Acceleratio.SPDG.Generator.Server.ServerRoleAssignmentHelper.AddRoleAssignment C# (CSharp) Метод

        public static void AddRoleAssignment(SPSecurableObject securableObject, SPDGPrincipal principal, IEnumerable<SPDGRoleDefinition> roleDefinitions)
        {
            SPPrincipal spPrincipal;
            if (principal is SPDGServerUser)
            {
                spPrincipal = ((SPDGServerUser)principal).SPUser;
            }
            else
            {
                spPrincipal = ((SPDGServerGroup)principal).Group;
            }
            SPRoleAssignment roleAss = new SPRoleAssignment(spPrincipal);
            foreach (var spdgRoleDefinition in roleDefinitions)
            {
                var spRoleDef = ((SPDGServerRoleDefinition)spdgRoleDefinition).RoleDefinition;
                roleAss.RoleDefinitionBindings.Add(spRoleDef);
            }
            securableObject.RoleAssignments.Add(roleAss);
        }