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| author | Austin Seipp <austin@well-typed.com> | 2014-04-22 06:09:40 -0500 |
|---|---|---|
| committer | Austin Seipp <austin@well-typed.com> | 2014-09-09 08:13:27 -0500 |
| commit | d94de87252d0fe2ae97341d186b03a2fbe136b04 (patch) | |
| tree | 1cac19f2786b1d8a1626886cd6373946a3a276b0 /compiler/utils/IOEnv.hs | |
| parent | fdfe6c0e50001add357475a1a3a7627243a28a70 (diff) | |
| download | haskell-d94de87252d0fe2ae97341d186b03a2fbe136b04.tar.gz | |
Make Applicative a superclass of Monad
Summary:
This includes pretty much all the changes needed to make `Applicative`
a superclass of `Monad` finally. There's mostly reshuffling in the
interests of avoid orphans and boot files, but luckily we can resolve
all of them, pretty much. The only catch was that
Alternative/MonadPlus also had to go into Prelude to avoid this.
As a result, we must update the hsc2hs and haddock submodules.
Signed-off-by: Austin Seipp <austin@well-typed.com>
Test Plan: Build things, they might not explode horribly.
Reviewers: hvr, simonmar
Subscribers: simonmar
Differential Revision: https://phabricator.haskell.org/D13
Diffstat (limited to 'compiler/utils/IOEnv.hs')
| -rw-r--r-- | compiler/utils/IOEnv.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/utils/IOEnv.hs b/compiler/utils/IOEnv.hs index 1db15537c7..8193beb87f 100644 --- a/compiler/utils/IOEnv.hs +++ b/compiler/utils/IOEnv.hs @@ -1,4 +1,5 @@ {-# LANGUAGE DeriveDataTypeable, UndecidableInstances #-} +{-# LANGUAGE CPP #-} -- -- (c) The University of Glasgow 2002-2006 @@ -43,7 +44,9 @@ import System.IO.Unsafe ( unsafeInterleaveIO ) import System.IO ( fixIO ) import Control.Monad import MonadUtils +#if __GLASGOW_HASKELL__ < 709 import Control.Applicative (Alternative(..)) +#endif ---------------------------------------------------------------------- -- Defining the monad type |