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-rw-r--r--CHANGES.md3
-rw-r--r--haddock-api/src/Haddock/Backends/LaTeX.hs47
-rw-r--r--haddock-api/src/Haddock/Backends/Xhtml/Decl.hs99
-rw-r--r--haddock-api/src/Haddock/Backends/Xhtml/Layout.hs4
-rw-r--r--haddock-api/src/Haddock/Types.hs3
-rw-r--r--html-test/ref/DefaultAssociatedTypes.html158
-rw-r--r--html-test/ref/DefaultSignatures.html182
-rw-r--r--html-test/src/DefaultAssociatedTypes.hs14
-rw-r--r--html-test/src/DefaultSignatures.hs19
-rw-r--r--latex-test/ref/DefaultSignatures/DefaultSignatures.tex41
-rw-r--r--latex-test/ref/DefaultSignatures/haddock.sty57
-rw-r--r--latex-test/ref/DefaultSignatures/main.tex11
-rw-r--r--latex-test/src/DefaultSignatures/DefaultSignatures.hs19
13 files changed, 606 insertions, 51 deletions
diff --git a/CHANGES.md b/CHANGES.md
index 15a88221..bd4317bf 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -23,6 +23,9 @@
* `--show-interface` now outputs to stdout (instead of stderr)
+ * Render associated type defaults and also improve rendering of
+ default method signatures
+
## Changes in version 2.22.0
* Make `--package-version` optional for `--hoogle` (#899)
diff --git a/haddock-api/src/Haddock/Backends/LaTeX.hs b/haddock-api/src/Haddock/Backends/LaTeX.hs
index 119bbc01..d2baefac 100644
--- a/haddock-api/src/Haddock/Backends/LaTeX.hs
+++ b/haddock-api/src/Haddock/Backends/LaTeX.hs
@@ -295,7 +295,7 @@ ppDecl decl pats (doc, fnArgsDoc) instances subdocs _fxts = case unLoc decl of
-- | Just _ <- tcdTyPats d -> ppTyInst False loc doc d unicode
-- Family instances happen via FamInst now
TyClD _ d@ClassDecl{} -> ppClassDecl instances doc subdocs d unicode
- SigD _ (TypeSig _ lnames ty) -> ppFunSig (doc, fnArgsDoc) (map unLoc lnames) (hsSigWcType ty) unicode
+ SigD _ (TypeSig _ lnames ty) -> ppFunSig Nothing (doc, fnArgsDoc) (map unLoc lnames) (hsSigWcType ty) unicode
SigD _ (PatSynSig _ lnames ty) -> ppLPatSig (doc, fnArgsDoc) (map unLoc lnames) ty unicode
ForD _ d -> ppFor (doc, fnArgsDoc) d unicode
InstD _ _ -> empty
@@ -307,7 +307,7 @@ ppDecl decl pats (doc, fnArgsDoc) instances subdocs _fxts = case unLoc decl of
ppFor :: DocForDecl DocName -> ForeignDecl DocNameI -> Bool -> LaTeX
ppFor doc (ForeignImport _ (L _ name) typ _) unicode =
- ppFunSig doc [name] (hsSigType typ) unicode
+ ppFunSig Nothing doc [name] (hsSigType typ) unicode
ppFor _ _ _ = error "ppFor error in Haddock.Backends.LaTeX"
-- error "foreign declarations are currently not supported by --latex"
@@ -414,17 +414,23 @@ ppTySyn _ _ _ = error "declaration not supported by ppTySyn"
-------------------------------------------------------------------------------
-ppFunSig :: DocForDecl DocName -> [DocName] -> LHsType DocNameI
- -> Bool -> LaTeX
-ppFunSig doc docnames (L _ typ) unicode =
+ppFunSig
+ :: Maybe LaTeX -- ^ a prefix to put right before the signature
+ -> DocForDecl DocName -- ^ documentation
+ -> [DocName] -- ^ pattern names in the pattern signature
+ -> LHsType DocNameI -- ^ type of the pattern synonym
+ -> Bool -- ^ unicode
+ -> LaTeX
+ppFunSig leader doc docnames (L _ typ) unicode =
ppTypeOrFunSig typ doc
- ( ppTypeSig names typ False
- , hsep . punctuate comma $ map ppSymName names
+ ( lead $ ppTypeSig names typ False
+ , lead $ hsep . punctuate comma $ map ppSymName names
, dcolon unicode
)
unicode
where
names = map getName docnames
+ lead = maybe id (<+>) leader
-- | Pretty-print a pattern synonym
ppLPatSig :: DocForDecl DocName -- ^ documentation
@@ -433,15 +439,7 @@ ppLPatSig :: DocForDecl DocName -- ^ documentation
-> Bool -- ^ unicode
-> LaTeX
ppLPatSig doc docnames ty unicode
- = ppTypeOrFunSig typ doc
- ( keyword "pattern" <+> ppTypeSig names typ False
- , keyword "pattern" <+> (hsep . punctuate comma $ map ppSymName names)
- , dcolon unicode
- )
- unicode
- where
- typ = unLoc (hsSigType ty)
- names = map getName docnames
+ = ppFunSig (Just (keyword "pattern")) doc docnames (hsSigType ty) unicode
-- | Pretty-print a type, adding documentation to the whole type and its
-- arguments as needed.
@@ -585,6 +583,7 @@ ppFds fds unicode =
hsep (map (ppDocName . unLoc) vars2)
+-- TODO: associated types, associated type defaults, docs on default methods
ppClassDecl :: [DocInstance DocNameI]
-> Documentation DocName -> [(DocName, DocForDecl DocName)]
-> TyClDecl DocNameI -> Bool -> LaTeX
@@ -610,13 +609,15 @@ ppClassDecl instances doc subdocs
methodTable =
text "\\haddockpremethods{}" <> emph (text "Methods") $$
- vcat [ ppFunSig doc names (hsSigWcType typ) unicode
- | L _ (TypeSig _ lnames typ) <- lsigs
- , let doc = lookupAnySubdoc (head names) subdocs
- names = map unLoc lnames ]
- -- FIXME: is taking just the first name ok? Is it possible that
- -- there are different subdocs for different names in a single
- -- type signature?
+ vcat [ ppFunSig leader doc names (hsSigType typ) unicode
+ | L _ (ClassOpSig _ is_def lnames typ) <- lsigs
+ , let doc | is_def = noDocForDecl
+ | otherwise = lookupAnySubdoc (head names) subdocs
+ names = map unLoc lnames
+ leader = if is_def then Just (keyword "default") else Nothing
+ ]
+ -- N.B. taking just the first name is ok. Signatures with multiple
+ -- names are expanded so that each name gets its own signature.
instancesBit = ppDocInstances unicode instances
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
index f2cab635..56a79d57 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
@@ -36,6 +36,7 @@ import Text.XHtml hiding ( name, title, p, quote )
import BasicTypes (PromotionFlag(..), isPromoted)
import GHC hiding (LexicalFixity(..))
+import qualified GHC
import GHC.Exts
import Name
import BooleanFormula
@@ -75,14 +76,14 @@ ppLFunSig :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName ->
[Located DocName] -> LHsType DocNameI -> [(DocName, Fixity)] ->
Splice -> Unicode -> Maybe Package -> Qualification -> Html
ppLFunSig summary links loc doc lnames lty fixities splice unicode pkg qual =
- ppFunSig summary links loc doc (map unLoc lnames) lty fixities
+ ppFunSig summary links loc noHtml doc (map unLoc lnames) lty fixities
splice unicode pkg qual
-ppFunSig :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName ->
+ppFunSig :: Bool -> LinksInfo -> SrcSpan -> Html -> DocForDecl DocName ->
[DocName] -> LHsType DocNameI -> [(DocName, Fixity)] ->
Splice -> Unicode -> Maybe Package -> Qualification -> Html
-ppFunSig summary links loc doc docnames typ fixities splice unicode pkg qual =
- ppSigLike summary links loc mempty doc docnames fixities (unLoc typ, pp_typ)
+ppFunSig summary links loc leader doc docnames typ fixities splice unicode pkg qual =
+ ppSigLike summary links loc leader doc docnames fixities (unLoc typ, pp_typ)
splice unicode pkg qual HideEmptyContexts
where
pp_typ = ppLType unicode qual HideEmptyContexts typ
@@ -218,7 +219,7 @@ ppFor :: Bool -> LinksInfo -> SrcSpan -> DocForDecl DocName
-> Splice -> Unicode -> Maybe Package -> Qualification -> Html
ppFor summary links loc doc (ForeignImport _ (L _ name) typ _) fixities
splice unicode pkg qual
- = ppFunSig summary links loc doc [name] (hsSigType typ) fixities splice unicode pkg qual
+ = ppFunSig summary links loc noHtml doc [name] (hsSigType typ) fixities splice unicode pkg qual
ppFor _ _ _ _ _ _ _ _ _ _ = error "ppFor"
@@ -496,7 +497,7 @@ ppShortClassDecl summary links (ClassDecl { tcdCtxt = lctxt, tcdLName = lname, t
-- ToDo: add associated type defaults
- [ ppFunSig summary links loc doc names (hsSigType typ)
+ [ ppFunSig summary links loc noHtml doc names (hsSigType typ)
[] splice unicode pkg qual
| L _ (ClassOpSig _ False lnames typ) <- sigs
, let doc = lookupAnySubdoc (head names) subdocs
@@ -517,8 +518,9 @@ ppClassDecl :: Bool -> LinksInfo -> [DocInstance DocNameI] -> [(DocName, Fixity)
-> [(DocName, DocForDecl DocName)] -> TyClDecl DocNameI
-> Splice -> Unicode -> Maybe Package -> Qualification -> Html
ppClassDecl summary links instances fixities loc d subdocs
- decl@(ClassDecl { tcdCtxt = lctxt, tcdLName = lname, tcdTyVars = ltyvars
- , tcdFDs = lfds, tcdSigs = lsigs, tcdATs = ats })
+ decl@(ClassDecl { tcdCtxt = lctxt, tcdLName = lname@(L _ nm)
+ , tcdTyVars = ltyvars, tcdFDs = lfds, tcdSigs = lsigs
+ , tcdATs = ats, tcdATDefs = atsDefs })
splice unicode pkg qual
| summary = ppShortClassDecl summary links decl loc subdocs splice unicode pkg qual
| otherwise = classheader +++ docSection curname pkg qual d
@@ -535,28 +537,68 @@ ppClassDecl summary links instances fixities loc d subdocs
-- Only the fixity relevant to the class header
fixs = ppFixities [ f | f@(n,_) <- fixities, n == unLoc lname ] qual
- nm = tcdName decl
-
hdr = ppClassHdr summary lctxt (unLoc lname) ltyvars lfds
- -- ToDo: add assocatied typ defaults
- atBit = subAssociatedTypes [ ppAssocType summary links doc at subfixs splice unicode pkg qual
- | at <- ats
- , let n = unL . fdLName $ unL at
- doc = lookupAnySubdoc (unL $ fdLName $ unL at) subdocs
- subfixs = [ f | f@(n',_) <- fixities, n == n' ] ]
-
- methodBit = subMethods [ ppFunSig summary links loc doc [name] (hsSigType typ)
- subfixs splice unicode pkg qual
- | L _ (ClassOpSig _ _ lnames typ) <- lsigs
- , name <- map unLoc lnames
- , let doc = lookupAnySubdoc name subdocs
- subfixs = [ f | f@(n',_) <- fixities
- , name == n' ]
- ]
- -- N.B. taking just the first name is ok. Signatures with multiple names
- -- are expanded so that each name gets its own signature.
+ -- Associated types
+ atBit = subAssociatedTypes
+ [ ppAssocType summary links doc at subfixs splice unicode pkg qual
+ <+>
+ subDefaults (maybeToList defTys)
+ | at <- ats
+ , let name = unL . fdLName $ unL at
+ doc = lookupAnySubdoc name subdocs
+ subfixs = filter ((== name) . fst) fixities
+ defTys = ppDefaultAssocTy name <$> lookupDAT name
+ ]
+
+ -- Default associated types
+ ppDefaultAssocTy n (vs,t,d') = ppTySyn summary links [] loc d' synDecl
+ splice unicode pkg qual
+ where
+ synDecl = SynDecl { tcdSExt = noExt
+ , tcdLName = noLoc n
+ , tcdTyVars = vs
+ , tcdFixity = GHC.Prefix
+ , tcdRhs = t }
+
+ lookupDAT name = Map.lookup (getName name) defaultAssocTys
+ defaultAssocTys = Map.fromList
+ [ (getName name, (vs, typ, doc))
+ | L _ (FamEqn { feqn_rhs = typ
+ , feqn_tycon = L _ name
+ , feqn_pats = vs }) <- atsDefs
+ , let doc = noDocForDecl -- TODO: get docs for associated type defaults
+ ]
+
+ -- Methods
+ methodBit = subMethods
+ [ ppFunSig summary links loc noHtml doc [name] (hsSigType typ)
+ subfixs splice unicode pkg qual
+ <+>
+ subDefaults (maybeToList defSigs)
+ | ClassOpSig _ False lnames typ <- sigs
+ , name <- map unLoc lnames
+ , let doc = lookupAnySubdoc name subdocs
+ subfixs = filter ((== name) . fst) fixities
+ defSigs = ppDefaultFunSig name <$> lookupDM name
+ ]
+ -- N.B. taking just the first name is ok. Signatures with multiple names
+ -- are expanded so that each name gets its own signature.
+
+ -- Default methods
+ ppDefaultFunSig n (t, d') = ppFunSig summary links loc (keyword "default")
+ d' [n] (hsSigType t) [] splice unicode pkg qual
+
+ lookupDM name = Map.lookup (getOccString name) defaultMethods
+ defaultMethods = Map.fromList
+ [ (nameStr, (typ, doc))
+ | ClassOpSig _ True lnames typ <- sigs
+ , name <- map unLoc lnames
+ , let doc = noDocForDecl -- TODO: get docs for method defaults
+ nameStr = getOccString name
+ ]
+ -- Minimal complete definition
minimalBit = case [ s | MinimalSig _ _ (L _ s) <- sigs ] of
-- Miminal complete definition = every shown method
And xs : _ | sort [getName n | L _ (Var (L _ n)) <- xs] ==
@@ -565,7 +607,7 @@ ppClassDecl summary links instances fixities loc d subdocs
-- Minimal complete definition = the only shown method
Var (L _ n) : _ | [getName n] ==
- [getName n' | L _ (ClassOpSig _ _ ns _) <- lsigs, L _ n' <- ns]
+ [getName n' | ClassOpSig _ _ ns _ <- sigs, L _ n' <- ns]
-> noHtml
-- Minimal complete definition = nothing
@@ -580,6 +622,7 @@ ppClassDecl summary links instances fixities loc d subdocs
where wrap | p = parens | otherwise = id
ppMinimal p (Parens x) = ppMinimal p (unLoc x)
+ -- Instances
instancesBit = ppInstances links (OriginClass nm) instances
splice unicode pkg qual
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
index 25d8b07a..4535b897 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Layout.hs
@@ -35,6 +35,7 @@ module Haddock.Backends.Xhtml.Layout (
subInstances, subOrphanInstances,
subInstHead, subInstDetails, subFamInstDetails,
subMethods,
+ subDefaults,
subMinimal,
topDeclElem, declElem,
@@ -259,6 +260,9 @@ instAnchorId iid = makeAnchorId $ "i:" ++ iid
subMethods :: [Html] -> Html
subMethods = divSubDecls "methods" "Methods" . subBlock
+subDefaults :: [Html] -> Html
+subDefaults = divSubDecls "default" "" . subBlock
+
subMinimal :: Html -> Html
subMinimal = divSubDecls "minimal" "Minimal complete definition" . Just . declElem
diff --git a/haddock-api/src/Haddock/Types.hs b/haddock-api/src/Haddock/Types.hs
index cd4ac1a1..a72247e6 100644
--- a/haddock-api/src/Haddock/Types.hs
+++ b/haddock-api/src/Haddock/Types.hs
@@ -355,6 +355,9 @@ showWrapped f (Unadorned n) = f n
showWrapped f (Parenthesized n) = "(" ++ f n ++ ")"
showWrapped f (Backticked n) = "`" ++ f n ++ "`"
+instance HasOccName DocName where
+
+ occName = occName . getName
-----------------------------------------------------------------------------
-- * Instances
diff --git a/html-test/ref/DefaultAssociatedTypes.html b/html-test/ref/DefaultAssociatedTypes.html
new file mode 100644
index 00000000..d456815f
--- /dev/null
+++ b/html-test/ref/DefaultAssociatedTypes.html
@@ -0,0 +1,158 @@
+<html xmlns="http://www.w3.org/1999/xhtml"
+><head
+ ><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"
+ /><meta name="viewport" content="width=device-width, initial-scale=1"
+ /><title
+ >DefaultAssociatedTypes</title
+ ><link href="#" rel="stylesheet" type="text/css" title="Linuwial"
+ /><link rel="stylesheet" type="text/css" href="#"
+ /><link rel="stylesheet" type="text/css" href="#"
+ /><script src="haddock-bundle.min.js" async="async" type="text/javascript"
+ ></script
+ ><script type="text/x-mathjax-config"
+ >MathJax.Hub.Config({ tex2jax: { processClass: &quot;mathjax&quot;, ignoreClass: &quot;.*&quot; } });</script
+ ><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"
+ ></script
+ ></head
+ ><body
+ ><div id="package-header"
+ ><span class="caption empty"
+ ></span
+ ><ul class="links" id="page-menu"
+ ><li
+ ><a href="#"
+ >Contents</a
+ ></li
+ ><li
+ ><a href="#"
+ >Index</a
+ ></li
+ ></ul
+ ></div
+ ><div id="content"
+ ><div id="module-header"
+ ><table class="info"
+ ><tr
+ ><th
+ >Safe Haskell</th
+ ><td
+ >Safe</td
+ ></tr
+ ></table
+ ><p class="caption"
+ >DefaultAssociatedTypes</p
+ ></div
+ ><div id="synopsis"
+ ><details id="syn"
+ ><summary
+ >Synopsis</summary
+ ><ul class="details-toggle" data-details-id="syn"
+ ><li class="src short"
+ ><span class="keyword"
+ >class</span
+ > <a href="#"
+ >Foo</a
+ > a <span class="keyword"
+ >where</span
+ ><ul class="subs"
+ ><li
+ ><span class="keyword"
+ >type</span
+ > <a href="#"
+ >Qux</a
+ > a :: *</li
+ ><li
+ ><a href="#"
+ >bar</a
+ >, <a href="#"
+ >baz</a
+ > :: a -&gt; <a href="#" title="Data.String"
+ >String</a
+ ></li
+ ></ul
+ ></li
+ ></ul
+ ></details
+ ></div
+ ><div id="interface"
+ ><h1
+ >Documentation</h1
+ ><div class="top"
+ ><p class="src"
+ ><span class="keyword"
+ >class</span
+ > <a id="t:Foo" class="def"
+ >Foo</a
+ > a <span class="keyword"
+ >where</span
+ > <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Documentation for Foo.</p
+ ></div
+ ><div class="subs associated-types"
+ ><p class="caption"
+ >Associated Types</p
+ ><p class="src"
+ ><span class="keyword"
+ >type</span
+ > <a id="t:Qux" class="def"
+ >Qux</a
+ > a :: * <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Doc for Qux</p
+ ></div
+ > <div class="subs default"
+ ><p class="caption"
+ ></p
+ ><p class="src"
+ ><span class="keyword"
+ >type</span
+ > <a id="t:Qux" class="def"
+ >Qux</a
+ > a = [a] <a href="#" class="selflink"
+ >#</a
+ ></p
+ ></div
+ ></div
+ ><div class="subs methods"
+ ><p class="caption"
+ >Methods</p
+ ><p class="src"
+ ><a id="v:bar" class="def"
+ >bar</a
+ > :: a -&gt; <a href="#" title="Data.String"
+ >String</a
+ > <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Documentation for bar and baz.</p
+ ></div
+ ><p class="src"
+ ><a id="v:baz" class="def"
+ >baz</a
+ > :: a -&gt; <a href="#" title="Data.String"
+ >String</a
+ > <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Documentation for bar and baz.</p
+ ></div
+ ></div
+ ></div
+ ></div
+ ></div
+ ><div id="footer"
+ ></div
+ ></body
+ ></html
+> \ No newline at end of file
diff --git a/html-test/ref/DefaultSignatures.html b/html-test/ref/DefaultSignatures.html
new file mode 100644
index 00000000..4bf261f7
--- /dev/null
+++ b/html-test/ref/DefaultSignatures.html
@@ -0,0 +1,182 @@
+<html xmlns="http://www.w3.org/1999/xhtml"
+><head
+ ><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"
+ /><meta name="viewport" content="width=device-width, initial-scale=1"
+ /><title
+ >DefaultSignatures</title
+ ><link href="#" rel="stylesheet" type="text/css" title="Linuwial"
+ /><link rel="stylesheet" type="text/css" href="#"
+ /><link rel="stylesheet" type="text/css" href="#"
+ /><script src="haddock-bundle.min.js" async="async" type="text/javascript"
+ ></script
+ ><script type="text/x-mathjax-config"
+ >MathJax.Hub.Config({ tex2jax: { processClass: &quot;mathjax&quot;, ignoreClass: &quot;.*&quot; } });</script
+ ><script src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML" type="text/javascript"
+ ></script
+ ></head
+ ><body
+ ><div id="package-header"
+ ><span class="caption empty"
+ ></span
+ ><ul class="links" id="page-menu"
+ ><li
+ ><a href="#"
+ >Contents</a
+ ></li
+ ><li
+ ><a href="#"
+ >Index</a
+ ></li
+ ></ul
+ ></div
+ ><div id="content"
+ ><div id="module-header"
+ ><table class="info"
+ ><tr
+ ><th
+ >Safe Haskell</th
+ ><td
+ >Safe</td
+ ></tr
+ ></table
+ ><p class="caption"
+ >DefaultSignatures</p
+ ></div
+ ><div id="synopsis"
+ ><details id="syn"
+ ><summary
+ >Synopsis</summary
+ ><ul class="details-toggle" data-details-id="syn"
+ ><li class="src short"
+ ><span class="keyword"
+ >class</span
+ > <a href="#"
+ >Foo</a
+ > a <span class="keyword"
+ >where</span
+ ><ul class="subs"
+ ><li
+ ><a href="#"
+ >bar</a
+ >, <a href="#"
+ >baz</a
+ > :: a -&gt; <a href="#" title="Data.String"
+ >String</a
+ ></li
+ ><li
+ ><a href="#"
+ >baz'</a
+ > :: <a href="#" title="Data.String"
+ >String</a
+ > -&gt; a</li
+ ></ul
+ ></li
+ ></ul
+ ></details
+ ></div
+ ><div id="interface"
+ ><h1
+ >Documentation</h1
+ ><div class="top"
+ ><p class="src"
+ ><span class="keyword"
+ >class</span
+ > <a id="t:Foo" class="def"
+ >Foo</a
+ > a <span class="keyword"
+ >where</span
+ > <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Documentation for Foo.</p
+ ></div
+ ><div class="subs minimal"
+ ><p class="caption"
+ >Minimal complete definition</p
+ ><p class="src"
+ ><a href="#" title="DefaultSignatures"
+ >baz</a
+ ></p
+ ></div
+ ><div class="subs methods"
+ ><p class="caption"
+ >Methods</p
+ ><p class="src"
+ ><a id="v:bar" class="def"
+ >bar</a
+ > :: a -&gt; <a href="#" title="Data.String"
+ >String</a
+ > <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Documentation for bar and baz.</p
+ ></div
+ > <div class="subs default"
+ ><p class="caption"
+ ></p
+ ><p class="src"
+ ><span class="keyword"
+ >default</span
+ > <a id="v:bar" class="def"
+ >bar</a
+ > :: <a href="#" title="Text.Show"
+ >Show</a
+ > a =&gt; a -&gt; <a href="#" title="Data.String"
+ >String</a
+ > <a href="#" class="selflink"
+ >#</a
+ ></p
+ ></div
+ ><p class="src"
+ ><a id="v:baz" class="def"
+ >baz</a
+ > :: a -&gt; <a href="#" title="Data.String"
+ >String</a
+ > <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Documentation for bar and baz.</p
+ ></div
+ ><p class="src"
+ ><a id="v:baz-39-" class="def"
+ >baz'</a
+ > :: <a href="#" title="Data.String"
+ >String</a
+ > -&gt; a <a href="#" class="selflink"
+ >#</a
+ ></p
+ ><div class="doc"
+ ><p
+ >Documentation for baz'.</p
+ ></div
+ > <div class="subs default"
+ ><p class="caption"
+ ></p
+ ><p class="src"
+ ><span class="keyword"
+ >default</span
+ > <a id="v:baz-39-" class="def"
+ >baz'</a
+ > :: <a href="#" title="Text.Read"
+ >Read</a
+ > a =&gt; <a href="#" title="Data.String"
+ >String</a
+ > -&gt; a <a href="#" class="selflink"
+ >#</a
+ ></p
+ ></div
+ ></div
+ ></div
+ ></div
+ ></div
+ ><div id="footer"
+ ></div
+ ></body
+ ></html
+> \ No newline at end of file
diff --git a/html-test/src/DefaultAssociatedTypes.hs b/html-test/src/DefaultAssociatedTypes.hs
new file mode 100644
index 00000000..6ad197d3
--- /dev/null
+++ b/html-test/src/DefaultAssociatedTypes.hs
@@ -0,0 +1,14 @@
+{-# LANGUAGE DefaultSignatures, TypeFamilies #-}
+
+module DefaultAssociatedTypes where
+
+-- | Documentation for Foo.
+class Foo a where
+ -- | Documentation for bar and baz.
+ bar, baz :: a -> String
+
+ -- | Doc for Qux
+ type Qux a :: *
+
+ -- | Doc for default Qux
+ type Qux a = [a]
diff --git a/html-test/src/DefaultSignatures.hs b/html-test/src/DefaultSignatures.hs
new file mode 100644
index 00000000..52d68a96
--- /dev/null
+++ b/html-test/src/DefaultSignatures.hs
@@ -0,0 +1,19 @@
+{-# LANGUAGE DefaultSignatures #-}
+
+module DefaultSignatures where
+
+-- | Documentation for Foo.
+class Foo a where
+ -- | Documentation for bar and baz.
+ bar, baz :: a -> String
+
+ -- | Documentation for the default signature of bar.
+ default bar :: Show a => a -> String
+ bar = show
+
+ -- | Documentation for baz'.
+ baz' :: String -> a
+
+ -- | Documentation for the default signature of baz'.
+ default baz' :: Read a => String -> a
+ baz' = read
diff --git a/latex-test/ref/DefaultSignatures/DefaultSignatures.tex b/latex-test/ref/DefaultSignatures/DefaultSignatures.tex
new file mode 100644
index 00000000..4dbcda49
--- /dev/null
+++ b/latex-test/ref/DefaultSignatures/DefaultSignatures.tex
@@ -0,0 +1,41 @@
+\haddockmoduleheading{DefaultSignatures}
+\label{module:DefaultSignatures}
+\haddockbeginheader
+{\haddockverb\begin{verbatim}
+module DefaultSignatures (
+ Foo(baz', baz, bar)
+ ) where\end{verbatim}}
+\haddockendheader
+
+\begin{haddockdesc}
+\item[\begin{tabular}{@{}l}
+class\ Foo\ a\ where
+\end{tabular}]\haddockbegindoc
+Documentation for Foo.\par
+
+\haddockpremethods{}\emph{Methods}
+\begin{haddockdesc}
+\item[\begin{tabular}{@{}l}
+bar,\ baz\ ::\ a\ ->\ String
+\end{tabular}]\haddockbegindoc
+Documentation for bar and baz.\par
+
+\end{haddockdesc}
+\begin{haddockdesc}
+\item[\begin{tabular}{@{}l}
+default\ bar\ ::\ Show\ a\ =>\ a\ ->\ String
+\end{tabular}]
+\end{haddockdesc}
+\begin{haddockdesc}
+\item[\begin{tabular}{@{}l}
+baz'\ ::\ String\ ->\ a
+\end{tabular}]\haddockbegindoc
+Documentation for baz'.\par
+
+\end{haddockdesc}
+\begin{haddockdesc}
+\item[\begin{tabular}{@{}l}
+default\ baz'\ ::\ Read\ a\ =>\ String\ ->\ a
+\end{tabular}]
+\end{haddockdesc}
+\end{haddockdesc} \ No newline at end of file
diff --git a/latex-test/ref/DefaultSignatures/haddock.sty b/latex-test/ref/DefaultSignatures/haddock.sty
new file mode 100644
index 00000000..6e031a98
--- /dev/null
+++ b/latex-test/ref/DefaultSignatures/haddock.sty
@@ -0,0 +1,57 @@
+% Default Haddock style definitions. To use your own style, invoke
+% Haddock with the option --latex-style=mystyle.
+
+\usepackage{tabulary} % see below
+
+% make hyperlinks in the PDF, and add an expandabale index
+\usepackage[pdftex,bookmarks=true]{hyperref}
+
+\newenvironment{haddocktitle}
+ {\begin{center}\bgroup\large\bfseries}
+ {\egroup\end{center}}
+\newenvironment{haddockprologue}{\vspace{1in}}{}
+
+\newcommand{\haddockmoduleheading}[1]{\chapter{\texttt{#1}}}
+
+\newcommand{\haddockbeginheader}{\hrulefill}
+\newcommand{\haddockendheader}{\noindent\hrulefill}
+
+% a little gap before the ``Methods'' header
+\newcommand{\haddockpremethods}{\vspace{2ex}}
+
+% inserted before \\begin{verbatim}
+\newcommand{\haddockverb}{\small}
+
+% an identifier: add an index entry
+\newcommand{\haddockid}[1]{\haddocktt{#1}\index{#1@\texttt{#1}}}
+
+% The tabulary environment lets us have a column that takes up ``the
+% rest of the space''. Unfortunately it doesn't allow
+% the \end{tabulary} to be in the expansion of a macro, it must appear
+% literally in the document text, so Haddock inserts
+% the \end{tabulary} itself.
+\newcommand{\haddockbeginconstrs}{\begin{tabulary}{\linewidth}{@{}llJ@{}}}
+\newcommand{\haddockbeginargs}{\begin{tabulary}{\linewidth}{@{}llJ@{}}}
+
+\newcommand{\haddocktt}[1]{{\small \texttt{#1}}}
+\newcommand{\haddockdecltt}[1]{{\small\bfseries \texttt{#1}}}
+
+\makeatletter
+\newenvironment{haddockdesc}
+ {\list{}{\labelwidth\z@ \itemindent-\leftmargin
+ \let\makelabel\haddocklabel}}
+ {\endlist}
+\newcommand*\haddocklabel[1]{\hspace\labelsep\haddockdecltt{#1}}
+\makeatother
+
+% after a declaration, start a new line for the documentation.
+% Otherwise, the documentation starts right after the declaration,
+% because we're using the list environment and the declaration is the
+% ``label''. I tried making this newline part of the label, but
+% couldn't get that to work reliably (the space seemed to stretch
+% sometimes).
+\newcommand{\haddockbegindoc}{\hfill\\[1ex]}
+
+% spacing between paragraphs and no \parindent looks better
+\parskip=10pt plus2pt minus2pt
+\setlength{\parindent}{0cm}
diff --git a/latex-test/ref/DefaultSignatures/main.tex b/latex-test/ref/DefaultSignatures/main.tex
new file mode 100644
index 00000000..d30eb008
--- /dev/null
+++ b/latex-test/ref/DefaultSignatures/main.tex
@@ -0,0 +1,11 @@
+\documentclass{book}
+\usepackage{haddock}
+\begin{document}
+\begin{titlepage}
+\begin{haddocktitle}
+
+\end{haddocktitle}
+\end{titlepage}
+\tableofcontents
+\input{DefaultSignatures}
+\end{document} \ No newline at end of file
diff --git a/latex-test/src/DefaultSignatures/DefaultSignatures.hs b/latex-test/src/DefaultSignatures/DefaultSignatures.hs
new file mode 100644
index 00000000..52d68a96
--- /dev/null
+++ b/latex-test/src/DefaultSignatures/DefaultSignatures.hs
@@ -0,0 +1,19 @@
+{-# LANGUAGE DefaultSignatures #-}
+
+module DefaultSignatures where
+
+-- | Documentation for Foo.
+class Foo a where
+ -- | Documentation for bar and baz.
+ bar, baz :: a -> String
+
+ -- | Documentation for the default signature of bar.
+ default bar :: Show a => a -> String
+ bar = show
+
+ -- | Documentation for baz'.
+ baz' :: String -> a
+
+ -- | Documentation for the default signature of baz'.
+ default baz' :: Read a => String -> a
+ baz' = read