remove namespace and key parameters from vnode signature

bower.json

@@ -16,7 +16,6 @@
     "package.json"
   ],
   "dependencies": {
-    "purescript-maybe": "~0.2.0",
     "purescript-dom": "~0.1.1"
   }
 }

examples/Test.purs

@@ -1,22 +1,41 @@
 module Test where
 
-import Data.Maybe
 import VirtualDOM
 import VirtualDOM.VTree
 import Debug.Trace
 
+
 doc1 :: VTree
-doc1 = vnode "div" {} [vtext "hello"] Nothing Nothing
+doc1 = vnode "div" {} [vtext "hello"]
 
 doc2 :: VTree
-doc2 = vnode "div" {} [vtext "hello", vtext "world"] Nothing Nothing
+doc2 = vnode "div" {} [vtext "hello", vtext "world"]
 
 doc3 :: VTree
 doc3 = vtext "hello world"
 
+doc4 :: VTree
+doc4 = vnode "div" 
+    { "namespace": "http://www.w3.org/2000/svg"
+    , "key": "my key"
+    } [vtext "Am I SVG?"]
+
+doc5 :: VTree
+doc5 = vnode "div"
+    { "key": "another key"
+    , "namespace": "http://www.w3.org/1999/xhtml"
+    , "style": { "color":  "red"
+               , "height": "10px"
+               , "width":  "100px"
+               }
+           } [vtext "I do it with style."]
+
 main = do
   print doc1
   print doc2
   print doc3
+  print doc4
+  print doc5
+
   print $ diff doc1 doc2
   print $ diff doc1 doc3

src/VirtualDOM/VTree.purs

@@ -1,15 +1,11 @@
 module VirtualDOM.VTree
   ( VTree()
   , TagName()
-  , Key()
-  , Namespace()
   , vnode
   , vtext
   ) where
 
 import Data.Function
-import Data.Maybe
-
 foreign import data VTree :: *
 
 foreign import showVTreeImpl
@@ -19,24 +15,32 @@ instance showVTree :: Show VTree where
   show = showVTreeImpl
 
 type TagName = String
-type Key = String
-type Namespace = String
-
-foreign import unsafeNull
-  "var unsafeNull = null;" :: forall a. a
 
 foreign import vnode' """
   var vnode$prime = (function() {
     var VNode = require('vtree/vnode');
-    return function (name, props, children, key, ns) {
+
+    return function (name, props, children) {
+      var key = undefined;
+      var ns = undefined;
+
+      if(props.namespace) {
+        ns = props.namespace;
+        props.namespace = undefined;
+      }
+
+      if(props.key) {
+        key = props.key;
+        props.key = undefined;
+      }
+
       return new VNode(name, props, children, key, ns);
     };
   }());
-  """ :: forall props. Fn5 TagName { | props } [VTree] Key Namespace VTree
+  """ :: forall props. Fn3 TagName { | props} [VTree] VTree
 
-vnode :: forall props. TagName -> { | props } -> [VTree] -> Maybe Key -> Maybe Namespace -> VTree
-vnode name props children key ns =
-  runFn5 vnode' name props children (fromMaybe unsafeNull key) (fromMaybe unsafeNull ns)
+vnode :: forall props. TagName -> { | props} -> [VTree] -> VTree
+vnode name props children = runFn3 vnode' name props children
 
 foreign import vtext """
   var vtext = (function() {