eeva/servant
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Enable FlexibleContexts in Servant.API.ContentTypes

Browse source 
Starting with GHC 9.2, UndecidableInstances no longer implies FlexibleContexts.
Add this extension where it's needed to make compilation succeed.
This commit is contained in:
Joseph C. Sible 2021-10-30 23:26:21 -04:00
parent bd9e4b1090
commit fea40bd0fc
2 changed files with 10 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
changelog.d/1477 Normal file
View file

@ -0,0 +1,9 @@
synopsis: Enable FlexibleContexts in Servant.API.ContentTypes
prs: #1477
description: {
Starting with GHC 9.2, UndecidableInstances no longer implies FlexibleContexts.
Add this extension where it's needed to make compilation succeed.
}

1
servant/src/Servant/API/ContentTypes.hs
View file

@ -2,6 +2,7 @@
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DeriveDataTypeable #-}
{-# LANGUAGE DeriveGeneric #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedStrings #-}