Use `ClassOpSig` instead of `TypeSig` for class methods (#835)

* Fix minimal pragma handling

Class declarations contain 'ClassOpSig' not 'Typesig'. This should fix #834.

* Accept html-test output

13 files changed, 124 insertions, 140 deletions

diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
index 815ecee9..1daf9ace 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
@@ -475,9 +475,9 @@ ppShortClassDecl summary links (ClassDecl { tcdCtxt = lctxt, tcdLName = lname, t
 
                 -- ToDo: add associated type defaults
 
-            [ ppFunSig summary links loc doc names (hsSigWcType typ)
+            [ ppFunSig summary links loc doc names (hsSigType typ)
                        [] splice unicode pkg qual
-              | L _ (TypeSig lnames typ) <- sigs
+              | L _ (ClassOpSig False lnames typ) <- sigs
               , let doc = lookupAnySubdoc (head names) subdocs
                     names = map unLoc lnames ]
               -- FIXME: is taking just the first name ok? Is it possible that
@@ -537,12 +537,12 @@ ppClassDecl summary links instances fixities loc d subdocs
     minimalBit = case [ s | MinimalSig _ (L _ s) <- sigs ] of
       -- Miminal complete definition = every shown method
       And xs : _ | sort [getName n | L _ (Var (L _ n)) <- xs] ==
-                   sort [getName n | TypeSig ns _ <- sigs, L _ n <- ns]
+                   sort [getName n | ClassOpSig _ ns _ <- sigs, L _ n <- ns]
         -> noHtml
 
       -- Minimal complete definition = the only shown method
       Var (L _ n) : _ | [getName n] ==
-                        [getName n' | L _ (TypeSig ns _) <- lsigs, L _ n' <- ns]
+                        [getName n' | L _ (ClassOpSig _ ns _) <- lsigs, L _ n' <- ns]
         -> noHtml
 
       -- Minimal complete definition = nothing
diff --git a/html-test/ref/Bug26.html b/html-test/ref/Bug26.html
index e50169ba..a363fef3 100644
--- a/html-test/ref/Bug26.html
+++ b/html-test/ref/Bug26.html
@@ -71,7 +71,11 @@
 	      > a <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >c_f</a
+		  > :: a</li
+		></ul
 	      ></li
 	    ></ul
 	  ></details
@@ -126,14 +130,6 @@
 	      >Since: 1.0</em
 	      ></p
 	    ></div
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Bug26"
-	      >c_f</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Bug613.html b/html-test/ref/Bug613.html
index 12717922..71e30832 100644
--- a/html-test/ref/Bug613.html
+++ b/html-test/ref/Bug613.html
@@ -51,7 +51,11 @@
 	      > f <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >fmap</a
+		  > :: (a -&gt; b) -&gt; f a -&gt; f b</li
+		></ul
 	      ></li
 	    ><li class="src short"
 	    ><span class="keyword"
@@ -78,14 +82,6 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Bug613"
-	      >fmap</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Bug647.html b/html-test/ref/Bug647.html
index 3375546d..0928c1ec 100644
--- a/html-test/ref/Bug647.html
+++ b/html-test/ref/Bug647.html
@@ -52,14 +52,6 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Bug647"
-	      >f</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Bug679.html b/html-test/ref/Bug679.html
index 093c9046..71eb9360 100644
--- a/html-test/ref/Bug679.html
+++ b/html-test/ref/Bug679.html
@@ -126,14 +126,6 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Bug679"
-	      >foo</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/DeprecatedClass.html b/html-test/ref/DeprecatedClass.html
index fc78c987..55abc489 100644
--- a/html-test/ref/DeprecatedClass.html
+++ b/html-test/ref/DeprecatedClass.html
@@ -51,7 +51,11 @@
 	      > a <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >foo</a
+		  > :: a -&gt; a</li
+		></ul
 	      ></li
 	    ><li class="src short"
 	    ><span class="keyword"
@@ -61,7 +65,11 @@
 	      > a <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >bar</a
+		  > :: a -&gt; a</li
+		></ul
 	      ></li
 	    ></ul
 	  ></details
@@ -88,14 +96,6 @@
 	    ><p
 	    >some class</p
 	    ></div
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="DeprecatedClass"
-	      >foo</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -132,14 +132,6 @@
 	      >Deprecated: SomeOtherClass</p
 	      ></div
 	    ></div
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="DeprecatedClass"
-	      >bar</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Hash.html b/html-test/ref/Hash.html
index 8c48cee4..517428fa 100644
--- a/html-test/ref/Hash.html
+++ b/html-test/ref/Hash.html
@@ -126,7 +126,13 @@
 	      > a <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >hash</a
+		  > :: a -&gt; <a href="#" title="Data.Int"
+		  >Int</a
+		  ></li
+		></ul
 	      ></li
 	    ></ul
 	  ></details
@@ -259,14 +265,6 @@
 	  ><p
 	    >A class of types which can be hashed.</p
 	    ></div
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Hash"
-	      >hash</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Instances.html b/html-test/ref/Instances.html
index 3dc26133..1b4f276f 100644
--- a/html-test/ref/Instances.html
+++ b/html-test/ref/Instances.html
@@ -146,6 +146,12 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
+	  ><div class="subs minimal"
+	  ><p class="caption"
+	    >Minimal complete definition</p
+	    ><p class="src"
+	    >Nothing</p
+	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -642,6 +648,12 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
+	  ><div class="subs minimal"
+	  ><p class="caption"
+	    >Minimal complete definition</p
+	    ><p class="src"
+	    >Nothing</p
+	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -1196,6 +1208,12 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
+	  ><div class="subs minimal"
+	  ><p class="caption"
+	    >Minimal complete definition</p
+	    ><p class="src"
+	    >Nothing</p
+	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -1922,6 +1940,12 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
+	  ><div class="subs minimal"
+	  ><p class="caption"
+	    >Minimal complete definition</p
+	    ><p class="src"
+	    >Nothing</p
+	    ></div
 	  ><div class="subs associated-types"
 	  ><p class="caption"
 	    >Associated Types</p
diff --git a/html-test/ref/Minimal.html b/html-test/ref/Minimal.html
index 5fe252ba..bc2da115 100644
--- a/html-test/ref/Minimal.html
+++ b/html-test/ref/Minimal.html
@@ -128,6 +128,26 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
+	  ><div class="subs minimal"
+	  ><p class="caption"
+	    >Minimal complete definition</p
+	    ><p class="src"
+	    >(<a href="#" title="Minimal"
+	      >a</a
+	      >, <a href="#" title="Minimal"
+	      >b</a
+	      >, <a href="#" title="Minimal"
+	      >c</a
+	      > | (<a href="#" title="Minimal"
+	      >d</a
+	      > | <a href="#" title="Minimal"
+	      >e</a
+	      >, (<a href="#" title="Minimal"
+	      >f</a
+	      > | <a href="#" title="Minimal"
+	      >g</a
+	      >)))</p
+	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -230,16 +250,6 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Minimal"
-	      >aaa</a
-	      >, <a href="#" title="Minimal"
-	      >bbb</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -298,6 +308,12 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
+	  ><div class="subs minimal"
+	  ><p class="caption"
+	    >Minimal complete definition</p
+	    ><p class="src"
+	    >Nothing</p
+	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Operators.html b/html-test/ref/Operators.html
index 075affab..26b7e7f0 100644
--- a/html-test/ref/Operators.html
+++ b/html-test/ref/Operators.html
@@ -145,6 +145,22 @@
 		  > a <a href="#"
 		  >&gt;&lt;&lt;</a
 		  > b</li
+		><li
+		><a href="#"
+		  >(&gt;&gt;&lt;)</a
+		  >, <a href="#"
+		  >(&lt;&lt;&gt;)</a
+		  > :: a -&gt; b -&gt; ()</li
+		><li
+		><a href="#"
+		  >(**&gt;)</a
+		  >, <a href="#"
+		  >(**&lt;)</a
+		  >, <a href="#"
+		  >(&gt;**)</a
+		  >, <a href="#"
+		  >(&lt;**)</a
+		  > :: a -&gt; a -&gt; ()</li
 		></ul
 	      ></li
 	    ><li class="src short"
@@ -376,24 +392,6 @@
 	  ><p
 	    >Class with fixity, including associated types</p
 	    ></div
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Operators"
-	      >(&gt;&gt;&lt;)</a
-	      >, <a href="#" title="Operators"
-	      >(&lt;&lt;&gt;)</a
-	      >, <a href="#" title="Operators"
-	      >(**&gt;)</a
-	      >, <a href="#" title="Operators"
-	      >(**&lt;)</a
-	      >, <a href="#" title="Operators"
-	      >(&gt;**)</a
-	      >, <a href="#" title="Operators"
-	      >(&lt;**)</a
-	      ></p
-	    ></div
 	  ><div class="subs associated-types"
 	  ><p class="caption"
 	    >Associated Types</p
diff --git a/html-test/ref/OrphanInstancesClass.html b/html-test/ref/OrphanInstancesClass.html
index 7b7085ea..81651e18 100644
--- a/html-test/ref/OrphanInstancesClass.html
+++ b/html-test/ref/OrphanInstancesClass.html
@@ -52,14 +52,6 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="OrphanInstancesClass"
-	      >aClass</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Test.html b/html-test/ref/Test.html
index 369541f3..26481afe 100644
--- a/html-test/ref/Test.html
+++ b/html-test/ref/Test.html
@@ -478,7 +478,17 @@
 	      > a <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >a</a
+		  > :: <a href="#" title="System.IO"
+		  >IO</a
+		  > a</li
+		><li
+		><a href="#"
+		  >b</a
+		  > :: [a]</li
+		></ul
 	      ></li
 	    ><li class="src short"
 	    ><span class="keyword"
@@ -488,7 +498,17 @@
 	      > a <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >d</a
+		  > :: <a href="#" title="Test"
+		  >T</a
+		  > a b</li
+		><li
+		><a href="#"
+		  >e</a
+		  > :: (a, a)</li
+		></ul
 	      ></li
 	    ><li class="src short"
 	    ><span class="keyword"
@@ -504,7 +524,11 @@
 	      > a <span class="keyword"
 	      >where</span
 	      ><ul class="subs"
-	      ></ul
+	      ><li
+		><a href="#"
+		  >ff</a
+		  > :: a</li
+		></ul
 	      ></li
 	    ><li class="src short"
 	    ><a href="#"
@@ -1558,16 +1582,6 @@
 		></code
 	      > class)</p
 	    ></div
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Test"
-	      >a</a
-	      >, <a href="#" title="Test"
-	      >b</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -1618,16 +1632,6 @@
 	  ><p
 	    >This is a class declaration with no separate docs for the methods</p
 	    ></div
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Test"
-	      >d</a
-	      >, <a href="#" title="Test"
-	      >e</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
@@ -1790,14 +1794,6 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Test"
-	      >ff</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p
diff --git a/html-test/ref/Ticket61.html b/html-test/ref/Ticket61.html
index e70ee3bd..9cab5271 100644
--- a/html-test/ref/Ticket61.html
+++ b/html-test/ref/Ticket61.html
@@ -52,14 +52,6 @@
 	    > <a href="#" class="selflink"
 	    >#</a
 	    ></p
-	  ><div class="subs minimal"
-	  ><p class="caption"
-	    >Minimal complete definition</p
-	    ><p class="src"
-	    ><a href="#" title="Ticket61"
-	      >f</a
-	      ></p
-	    ></div
 	  ><div class="subs methods"
 	  ><p class="caption"
 	    >Methods</p