System.Security.CodeAccessSecurityEngine.CheckHelper C# (CSharp) Method

        internal static void CheckHelper(CompressedStack cs,
                                        PermissionSet grantedSet,
                                        PermissionSet refusedSet,
                                        CodeAccessPermission demand, 
                                        PermissionToken permToken,
                                        RuntimeMethodHandle rmh,
                                        Assembly asm,
                                        SecurityAction action)
        {
            if (cs != null)
                cs.CheckDemand(demand, permToken, rmh);
            else
                CheckHelper(grantedSet, refusedSet, demand, permToken, rmh, (Object)asm, action, true);
        }

        internal static void CheckAssembly(RuntimeAssembly asm, CodeAccessPermission demand)
        {
            PermissionSet grantedSet;
            PermissionSet refusedSet;

            asm.GetGrantSet(out grantedSet, out refusedSet);
            CodeAccessSecurityEngine.CheckHelper(grantedSet, refusedSet, demand, PermissionToken.GetToken(demand), RuntimeMethodHandleInternal.EmptyHandle, asm, SecurityAction.Demand, true);
        }