[commit: haddock] 2.17.3.1-spanfix, alexbiehl-patch-1, ghc-8.0, ghc-8.0-facebook, ghc-head, ghc-head1, haddock-quick, headdock-library-1.4.5, ie_avails, issue-303, issue-475, master, pr-filter-maps, pr/cabal-desc, travis, v2.17, v2.17.3, v2.18, wip-located-module-as, wip/D2418, wip/T11080-open-data-kinds, wip/T11258, wip/T11430, wip/T12105, wip/T12105-2, wip/T12942, wip/T13163, wip/T14529, wip/T3384, wip/embelleshed-rdr, wip/new-tree-one-param, wip/rae, wip/remove-frames, wip/remove-frames1, wip/revert-ttg-2017-11-20, wip/ttg-2017-10-13, wip/ttg-2017-10-31, wip/ttg-2017-11-06, wip/ttg2-2017-11-10, wip/ttg3-2017-11-12, wip/ttg4-constraints-2017-11-13, wip/ttg6-unrevert-2017-11-22: Eliminate instanceHead' in favour of GHC's instanceSig (7e49f55)

git at git.haskell.org git at git.haskell.org
Tue Nov 28 11:40:55 UTC 2017


Repository : ssh://git@git.haskell.org/haddock

On branches: 2.17.3.1-spanfix,alexbiehl-patch-1,ghc-8.0,ghc-8.0-facebook,ghc-head,ghc-head1,haddock-quick,headdock-library-1.4.5,ie_avails,issue-303,issue-475,master,pr-filter-maps,pr/cabal-desc,travis,v2.17,v2.17.3,v2.18,wip-located-module-as,wip/D2418,wip/T11080-open-data-kinds,wip/T11258,wip/T11430,wip/T12105,wip/T12105-2,wip/T12942,wip/T13163,wip/T14529,wip/T3384,wip/embelleshed-rdr,wip/new-tree-one-param,wip/rae,wip/remove-frames,wip/remove-frames1,wip/revert-ttg-2017-11-20,wip/ttg-2017-10-13,wip/ttg-2017-10-31,wip/ttg-2017-11-06,wip/ttg2-2017-11-10,wip/ttg3-2017-11-12,wip/ttg4-constraints-2017-11-13,wip/ttg6-unrevert-2017-11-22
Link       : http://git.haskell.org/haddock.git/commitdiff/7e49f55580ffb701944603983b41873649bb35f6

>---------------------------------------------------------------

commit 7e49f55580ffb701944603983b41873649bb35f6
Author: Simon Peyton Jones <simonpj at microsoft.com>
Date:   Tue Dec 23 15:22:56 2014 +0000

    Eliminate instanceHead' in favour of GHC's instanceSig
    
    This is made possible by the elimination of "silent superclass
    parameters" in GHC


>---------------------------------------------------------------

7e49f55580ffb701944603983b41873649bb35f6
 haddock-api/src/Haddock/Interface/AttachInstances.hs | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/haddock-api/src/Haddock/Interface/AttachInstances.hs b/haddock-api/src/Haddock/Interface/AttachInstances.hs
index e2fd24e..2156937 100644
--- a/haddock-api/src/Haddock/Interface/AttachInstances.hs
+++ b/haddock-api/src/Haddock/Interface/AttachInstances.hs
@@ -82,7 +82,7 @@ attachToExportItem expInfo iface ifaceMap instIfaceMap export =
                           , let opaque = isTypeHidden expInfo (fi_rhs i)
                           ]
               cls_insts = [ (synifyInstHead i, instLookup instDocMap n iface ifaceMap instIfaceMap, spanName n (synifyInstHead i) (L eSpan (tcdName d)))
-                          | let is = [ (instanceHead' i, getName i) | i <- cls_instances ]
+                          | let is = [ (instanceSig i, getName i) | i <- cls_instances ]
                           , (i@(_,_,cls,tys), n) <- sortBy (comparing $ first instHead) is
                           , not $ isInstanceHidden expInfo cls tys
                           ]
@@ -131,20 +131,6 @@ instLookup f name iface ifaceMap instIfaceMap =
       iface' <- Map.lookup (nameModule name) ifaceMaps
       Map.lookup name (f iface')
 
--- | Like GHC's 'instanceHead' but drops "silent" arguments.
-instanceHead' :: ClsInst -> ([TyVar], ThetaType, Class, [Type])
-instanceHead' ispec = (tvs, dropSilentArgs dfun theta, cls, tys)
-  where
-    dfun = is_dfun ispec
-    (tvs, cls, tys) = instanceHead ispec
-    (_, theta, _) = tcSplitSigmaTy (idType dfun)
-
--- | Drop "silent" arguments. See GHC Note [Silent superclass
--- arguments].
-dropSilentArgs :: DFunId -> ThetaType -> ThetaType
-dropSilentArgs dfun theta = drop (dfunNSilent dfun) theta
-
-
 -- | Like GHC's getInfo but doesn't cut things out depending on the
 -- interative context, which we don't set sufficiently anyway.
 getAllInfo :: GhcMonad m => Name -> m (Maybe (TyThing,Fixity,[ClsInst],[FamInst]))



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