From dee8ef2b918917a1469f35b24d7bd9f7caa59d62 Mon Sep 17 00:00:00 2001
From: Oleg Grenrus <oleg.grenrus@iki.fi>
Date: Mon, 28 Sep 2015 07:21:11 +0300
Subject: Have source links for orphan instances

---
 haddock-api/src/Haddock/Interface.hs                 |  2 +-
 haddock-api/src/Haddock/Interface/AttachInstances.hs | 20 ++++++++------------
 2 files changed, 9 insertions(+), 13 deletions(-)

(limited to 'haddock-api')

diff --git a/haddock-api/src/Haddock/Interface.hs b/haddock-api/src/Haddock/Interface.hs
index 1bb04ed3..8b04d76b 100644
--- a/haddock-api/src/Haddock/Interface.hs
+++ b/haddock-api/src/Haddock/Interface.hs
@@ -228,7 +228,7 @@ buildHomeLinks ifaces = foldl upd Map.empty (reverse ifaces)
         foldl' keep_old old_env exported_names
       | otherwise = foldl' keep_new old_env exported_names
       where
-        exported_names = ifaceVisibleExports iface
+        exported_names = ifaceVisibleExports iface ++ map getName (ifaceInstances iface)
         mdl            = ifaceMod iface
         keep_old env n = Map.insertWith (\_ old -> old) n mdl env
         keep_new env n = Map.insert n mdl env
diff --git a/haddock-api/src/Haddock/Interface/AttachInstances.hs b/haddock-api/src/Haddock/Interface/AttachInstances.hs
index c3e1275e..5adee457 100644
--- a/haddock-api/src/Haddock/Interface/AttachInstances.hs
+++ b/haddock-api/src/Haddock/Interface/AttachInstances.hs
@@ -66,23 +66,13 @@ attachInstances expInfo ifaces instIfaceMap = mapM attach ifaces
                      , ifaceOrphanInstances = orphanInstances
                      }
 
-spanName :: NamedThing a => a -> InstHead e -> GenLocated SrcSpan e -> GenLocated SrcSpan e
-spanName s (InstHead { ihdClsName = clsn }) (L instL instn) =
-    let s1 = getSrcSpan s
-        sn = if srcSpanFileName_maybe s1 == srcSpanFileName_maybe instL
-                then instn
-                else clsn
-    in L (getSrcSpan s) sn
-
 attachOrphanInstances :: ExportInfo -> Interface -> IfaceMap -> InstIfaceMap -> [ClsInst] -> [DocInstance Name]
 attachOrphanInstances expInfo iface ifaceMap instIfaceMap cls_instances =
-  [ (synifyInstHead i, instLookup instDocMap n iface ifaceMap instIfaceMap, spanName n (synifyInstHead i) (L noSrcSpan n))
+  [ (synifyInstHead i, instLookup instDocMap n iface ifaceMap instIfaceMap, (L (getSrcSpan n) n))
   | let is = [ (instanceHead' i, getName i) | i <- cls_instances, isOrphan (is_orphan i) ]
   , (i@(_,_,cls,tys), n) <- sortBy (comparing $ first instHead) is
   , not $ isInstanceHidden expInfo cls tys
   ]
-  where
-    -- spanName: attach the location to the name that is the same file as the instance location
 
 
 attachToExportItem :: ExportInfo -> Interface -> IfaceMap -> InstIfaceMap
@@ -128,7 +118,13 @@ attachToExportItem expInfo iface ifaceMap instIfaceMap export =
       ] }
 
     attachFixities e = e
-
+    -- spanName: attach the location to the name that is the same file as the instance location
+    spanName s (InstHead { ihdClsName = clsn }) (L instL instn) =
+        let s1 = getSrcSpan s
+            sn = if srcSpanFileName_maybe s1 == srcSpanFileName_maybe instL
+                    then instn
+                    else clsn
+        in L (getSrcSpan s) sn
     -- spanName on Either
     spanNameE s (Left e) _ =  L (getSrcSpan s) (Left e)
     spanNameE s (Right ok) linst =
-- 
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