From 42d49d550642aa58696af91bb250487ac42e9095 Mon Sep 17 00:00:00 2001
From: Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com>
Date: Tue, 21 Jul 2015 14:44:22 +0200
Subject: Attach source locations to the specialized class methods.

---
 haddock-api/src/Haddock/Backends/Xhtml/Decl.hs | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
index 4862945a..67405915 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
@@ -223,14 +223,13 @@ ppTyName :: Name -> Html
 ppTyName = ppName Prefix
 
 
-ppSimpleSig :: LinksInfo -> Splice -> Unicode -> Qualification
+ppSimpleSig :: LinksInfo -> Splice -> Unicode -> Qualification -> SrcSpan
             -> [DocName] -> HsType DocName
             -> Html
-ppSimpleSig links splice unicode qual names typ =
+ppSimpleSig links splice unicode qual loc names typ =
     topDeclElem' names $ ppTypeSig True occNames ppTyp unicode
   where
-    -- TODO: Use *helpful* source span.
-    topDeclElem' = topDeclElem links (UnhelpfulSpan undefined) splice
+    topDeclElem' = topDeclElem links loc splice
     ppTyp = ppType unicode qual typ
     occNames = map getOccName names
 
@@ -551,10 +550,10 @@ ppInstanceSigs :: LinksInfo -> Splice -> Unicode -> Qualification
               -> InstSpec DocName -> InstHead DocName
               -> [Html]
 ppInstanceSigs links splice unicode qual (InstSpec {..}) (InstHead {..}) = do
-    TypeSig lnames (L sspan typ) _ <- ispecSigs
+    TypeSig lnames (L loc typ) _ <- ispecSigs
     let names = map unLoc lnames
     let typ' = rename' . sugar $ specializeTyVarBndrs ispecTyVars ihdTypes typ
-    return $ ppSimpleSig links splice unicode qual names typ'
+    return $ ppSimpleSig links splice unicode qual loc names typ'
   where
     fv = foldr Set.union Set.empty . map freeVariables $ ihdTypes
     rename' = rename fv
-- 
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