Mon Nov 20 20:50:05 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,v2.16,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/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
Link       : http://git.haskell.org/haddock.git/commitdiff/3f31e24656d42bc6c50f441e055b7ecc4fdec8d0

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

commit 3f31e24656d42bc6c50f441e055b7ecc4fdec8d0
Author: Łukasz Hanuszczak <lukasz.hanuszczak at gmail.com>
Date:   Wed Jul 15 19:31:15 2015 +0200

    Implement list syntax sugaring logic for specialized types.


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

3f31e24656d42bc6c50f441e055b7ecc4fdec8d0
 haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs b/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs
index c10c7e6..30501a1 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Specialize.hs
@@ -1,4 +1,6 @@
 {-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE Rank2Types #-}
+{-# LANGUAGE ScopedTypeVariables #-}
 
 
 module Haddock.Backends.Xhtml.Specialize
@@ -11,6 +13,7 @@ module Haddock.Backends.Xhtml.Specialize
 import Haddock.Syb
 
 import GHC
+import Name
 
 import Data.Data
 
@@ -43,12 +46,22 @@ specializeTyVarBndrs bndrs typs =
     bname (KindedTyVar (L _ name) _) = name
 
 
-sugar :: HsType name -> HsType name
+sugar :: (NamedThing name, DataId name) => HsType name -> HsType name
 sugar = sugarTuples . sugarLists
 
 
-sugarLists :: HsType name -> HsType name
-sugarLists = id
+sugarLists :: forall name. (NamedThing name, DataId name)
+           => HsType name -> HsType name
+sugarLists = everywhere $ mkT (sugarListsStep :: HsType name -> HsType name)
+
+
+sugarListsStep :: NamedThing name => HsType name -> HsType name
+sugarListsStep (HsAppTy (L _ (HsTyVar name)) ltyp)
+    | isBuiltInSyntax name' && strName == "[]" = HsListTy ltyp
+  where
+    name' = getName name
+    strName = occNameString . nameOccName $ name'
+sugarListsStep typ = typ
 
 
 sugarTuples :: HsType name -> HsType name

