-- Copyright 2018 Google LLC
--
-- Licensed under the Apache License, Version 2.0 (the "License"); you may not
-- use this file except in compliance with the License. You may obtain a copy of
-- the License at
--
--     https://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-- WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-- License for the specific language governing permissions and limitations under
-- the License.

module Result where

import Control.Exception (assert)
import Foreign (throwIf_)
import Foreign.C.Types

alwaysSucceeds :: IO CInt -> IO ()
alwaysSucceeds f = do
  r <- f
  assert (r == 1) (return ())

requireSuccess :: IO CInt -> IO ()
requireSuccess f = throwIf_ (/= 1) (const "BoringSSL failure") f