From b4a82b390e3b6d7d5f1c10c42c4e36d5d7cf667b Mon Sep 17 00:00:00 2001
From: Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com>
Date: Tue, 21 Jul 2015 13:43:48 +0200
Subject: Make specialized signatures refer to original signature declaration.

---
 haddock-api/src/Haddock/Backends/Xhtml/Decl.hs   | 11 +++++++++--
 haddock-api/src/Haddock/Backends/Xhtml/Layout.hs |  2 +-
 2 files changed, 10 insertions(+), 3 deletions(-)

(limited to 'haddock-api')

diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
index 176180ad..b3e1db81 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
@@ -223,6 +223,14 @@ ppTyName :: Name -> Html
 ppTyName = ppName Prefix
 
 
+ppSimpleSig :: Unicode -> Qualification -> [DocName] -> HsType DocName -> Html
+ppSimpleSig unicode qual names typ =
+    ppTypeSig True occNames ppTyp unicode
+  where
+    ppTyp = ppType unicode qual typ
+    occNames = map getOccName names
+
+
 --------------------------------------------------------------------------------
 -- * Type families
 --------------------------------------------------------------------------------
@@ -542,8 +550,7 @@ ppInstanceSigs links splice unicode qual (InstSpec {..}) (InstHead {..}) = do
     TypeSig lnames (L sspan typ) _ <- ispecSigs
     let names = map unLoc lnames
     let typ' = rename' . sugar $ specializeTyVarBndrs ispecTyVars ihdTypes typ
-    return $ ppFunSig False links sspan noDocForDecl names typ' []
-        splice unicode qual
+    return $ ppSimpleSig unicode qual names typ'
   where
     fv = foldr Set.union Set.empty . map freeVariables $ ihdTypes
     rename' = rename fv
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
index 188b4243..d971b0e5 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
@@ -211,7 +211,7 @@ subClsInstance sid hdr mets =
   where
     anchorId = makeAnchorId $ "i:" ++ sid
     hdrDiv = thediv ! collapseControl anchorId False "instance" << hdr
-    methodDiv = thediv ! collapseSection anchorId False [] << subMethods mets
+    methodDiv = thediv ! collapseSection anchorId False [] << subBlock mets
 
 
 subMethods :: [Html] -> Html
-- 
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