The @FamInst@ type: family instance heads
\begin{code}
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+-- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
+-- for details
+
module FamInst (
checkFamInstConsistency, tcExtendLocalFamInstEnv
) where
-#include "HsVersions.h"
-
import HscTypes
import FamInstEnv
import TcMType
import Module
import SrcLoc
import Outputable
-import UniqFM
+import LazyUniqFM
import FiniteMap
+import FastString
import Maybe
import Monad
conflictInstErr famInst conflictingFamInst
= addFamInstLoc famInst $
- addErr (hang (ptext SLIT("Conflicting family instance declarations:"))
+ addErr (hang (ptext (sLit "Conflicting family instance declarations:"))
2 (pprFamInsts [famInst, conflictingFamInst]))
addFamInstLoc famInst thing_inside