Replace Node::{with_base, with_mut_base} by Node::{node, mut_node}.

src/components/script/dom/bindings/node.rs

@@ -101,15 +101,11 @@ pub fn create(cx: *JSContext, node: &mut AbstractNode<ScriptView>) -> *JSObject
 
 impl Reflectable for AbstractNode<ScriptView> {
     fn reflector<'a>(&'a self) -> &'a Reflector {
-        do self.with_base |base| {
+        self.node().reflector()
-            unsafe { cast::transmute(base.reflector()) }
-        }
     }
 
     fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        do self.with_mut_base |base| {
+        self.mut_node().mut_reflector()
-            unsafe { cast::transmute(base.reflector()) }
-        }
     }
 
     fn wrap_object_shared(@mut self, _cx: *JSContext, _scope: *JSObject) -> *JSObject {
@@ -117,9 +113,7 @@ impl Reflectable for AbstractNode<ScriptView> {
     }
 
     fn GetParentObject(&self, cx: *JSContext) -> Option<@mut Reflectable> {
-        do self.with_mut_base |base| {
+        self.node().GetParentObject(cx)
-            base.GetParentObject(cx)
-        }
     }
 }
 

src/components/script/dom/document.rs

@@ -88,11 +88,9 @@ impl AbstractDocument {
     }
 
     pub fn set_root(&self, root: AbstractNode<ScriptView>) {
-        assert!(root.traverse_preorder().all(|node| {
+        assert!(do root.traverse_preorder().all |node| {
-            do node.with_base |node| {
+            node.node().owner_doc() == *self
-                node.owner_doc() == *self
+        });
-            }
-        }));
         self.with_mut_base(|document| {
             document.root = Some(root);
             // Register elements having "id" attribute to the owner doc.
@@ -561,14 +559,12 @@ impl Traceable for Document {
                     do "root".to_c_str().with_ref |name| {
                         (*tracer).debugPrintArg = name as *libc::c_void;
                         debug!("tracing root node");
-                        do root.with_base |node| {
                         JS_CallTracer(tracer as *JSTracer,
-                                          node.reflector_.object,
+                                      root.reflector().get_jsobject(),
                                       JSTRACE_OBJECT as u32);
                     }
                 }
             }
         }
     }
-    }
 }

src/components/script/dom/node.rs

@@ -52,7 +52,7 @@ pub struct LayoutView;
 /// FIXME: This should be replaced with a trait once they can inherit from structs.
 #[deriving(Eq)]
 pub struct AbstractNode<View> {
-    priv obj: *mut Node<View>,
+    priv obj: *mut Box<Node<View>>,
 }
 
 pub struct AbstractNodeChildrenIterator<View> {
@@ -115,6 +115,18 @@ impl<View> Clone for AbstractNode<View> {
 }
 
 impl<View> TreeNodeRef<Node<View>> for AbstractNode<View> {
+    fn node<'a>(&'a self) -> &'a Node<View> {
+        unsafe {
+            &(*self.obj).data
+        }
+    }
+
+    fn mut_node<'a>(&'a self) -> &'a mut Node<View> {
+        unsafe {
+            &mut (*self.obj).data
+        }
+    }
+
     fn parent_node(node: &Node<View>) -> Option<AbstractNode<View>> {
         node.parent_node
     }
@@ -147,15 +159,6 @@ impl<View> TreeNodeRef<Node<View>> for AbstractNode<View> {
         node.next_sibling = new_next_sibling
     }
 
-    // FIXME: The duplication between `with_base` and `with_mut_base` is ugly.
-    fn with_base<R>(&self, callback: &fn(&Node<View>) -> R) -> R {
-        self.transmute(callback)
-    }
-
-    fn with_mut_base<R>(&self, callback: &fn(&mut Node<View>) -> R) -> R {
-        self.transmute_mut(callback)
-    }
-
     fn is_element(&self) -> bool {
         match self.type_id() {
             ElementNodeTypeId(*) => true,
@@ -194,7 +197,7 @@ impl<'self, View> AbstractNode<View> {
     /// chain for nodes.
     pub fn from_box<T>(ptr: *mut Box<T>) -> AbstractNode<View> {
         AbstractNode {
-            obj: ptr as *mut Node<View>
+            obj: ptr as *mut Box<Node<View>>
         }
     }
 
@@ -202,32 +205,32 @@ impl<'self, View> AbstractNode<View> {
 
     /// Returns the type ID of this node. Fails if this node is borrowed mutably.
     pub fn type_id(self) -> NodeTypeId {
-        self.with_base(|b| b.type_id)
+        self.node().type_id
     }
 
     /// Returns the parent node of this node. Fails if this node is borrowed mutably.
     pub fn parent_node(self) -> Option<AbstractNode<View>> {
-        self.with_base(|b| b.parent_node)
+        self.node().parent_node
     }
 
     /// Returns the first child of this node. Fails if this node is borrowed mutably.
     pub fn first_child(self) -> Option<AbstractNode<View>> {
-        self.with_base(|b| b.first_child)
+        self.node().first_child
     }
 
     /// Returns the last child of this node. Fails if this node is borrowed mutably.
     pub fn last_child(self) -> Option<AbstractNode<View>> {
-        self.with_base(|b| b.last_child)
+        self.node().last_child
     }
 
     /// Returns the previous sibling of this node. Fails if this node is borrowed mutably.
     pub fn prev_sibling(self) -> Option<AbstractNode<View>> {
-        self.with_base(|b| b.prev_sibling)
+        self.node().prev_sibling
     }
 
     /// Returns the next sibling of this node. Fails if this node is borrowed mutably.
     pub fn next_sibling(self) -> Option<AbstractNode<View>> {
-        self.with_base(|b| b.next_sibling)
+        self.node().next_sibling
     }
 
     /// Is this node a root?
@@ -381,11 +384,11 @@ impl<'self, View> AbstractNode<View> {
         self.type_id() == ElementNodeTypeId(HTMLStyleElementTypeId)
     }
 
-    pub unsafe fn raw_object(self) -> *mut Node<View> {
+    pub unsafe fn raw_object(self) -> *mut Box<Node<View>> {
         self.obj
     }
 
-    pub fn from_raw(raw: *mut Node<View>) -> AbstractNode<View> {
+    pub fn from_raw(raw: *mut Box<Node<View>>) -> AbstractNode<View> {
         AbstractNode {
             obj: raw
         }
@@ -425,8 +428,7 @@ impl<'self, View> AbstractNode<View> {
 
     // Issue #1030: should not walk the tree
     pub fn is_in_doc(&self) -> bool {
-        do self.with_base |node| {
+        do self.node().owner_doc().with_base |document| {
-            do node.owner_doc().with_base |document| {
             match document.GetDocumentElement() {
                 None => false,
                 Some(root) => {
@@ -449,7 +451,6 @@ impl<'self, View> AbstractNode<View> {
             }
         }
     }
-    }
 }
 
 impl<View> Iterator<AbstractNode<View>> for AbstractNodeChildrenIterator<View> {
@@ -486,9 +487,7 @@ impl Node<ScriptView> {
         let mut cur_node = self.first_child;
         while cur_node.is_some() {
             for node in cur_node.unwrap().traverse_preorder() {
-                do node.with_mut_base |node_base| {
+                node.mut_node().set_owner_doc(doc);
-                    node_base.set_owner_doc(doc);
-                }
             };
             cur_node = cur_node.unwrap().next_sibling();
         }
@@ -784,9 +783,7 @@ impl Node<ScriptView> {
         // If the node already exists it is removed from current parent node.
         node.parent_node().map(|parent| parent.remove_child(node));
         abstract_self.add_child(node);
-        do node.with_mut_base |node| {
+        node.mut_node().add_to_doc(node, self.owner_doc());
-            node.add_to_doc(abstract_self, self.owner_doc());
-        }
         Ok(node)
     }
 
@@ -949,14 +946,10 @@ impl AbstractNode<LayoutView> {
     // Node.  Also this makes it easier to switch to RWArc if we decide that is
     // necessary.
     pub fn read_layout_data<R>(self, blk: &fn(data: &LayoutData) -> R) -> R {
-        do self.with_base |b| {
+        blk(&self.node().layout_data)
-            blk(&b.layout_data)
-        }
     }
 
     pub fn write_layout_data<R>(self, blk: &fn(data: &mut LayoutData) -> R) -> R {
-        do self.with_mut_base |b| {
+        blk(&mut self.mut_node().layout_data)
-            blk(&mut b.layout_data)
-        }
     }
 }

src/components/style/selector_matching.rs

@@ -171,8 +171,10 @@ fn matches_compound_selector<N: TreeNode<T>, T: TreeNodeRefAsElement<N, E>, E: E
             };
             let mut node = element.clone();
             loop {
-                let next_node = do node.with_base |node| {
+                let next_node = if siblings {
-                    if siblings { node.prev_sibling() } else { node.parent_node() }
+                    node.node().prev_sibling()
+                } else {
+                    node.node().parent_node()
                 };
                 match next_node {
                     None => return false,

src/components/util/tree.rs

@@ -37,7 +37,7 @@ impl<Node, Ref: TreeNodeRef<Node>> Iterator<Ref> for ChildIterator<Ref> {
 
         // FIXME: Do we need two clones here?
         let x = self.current.get_ref().clone();
-        self.current = x.with_base(|n| TreeNodeRef::<Node>::next_sibling(n));
+        self.current = TreeNodeRef::<Node>::next_sibling(x.node());
         Some(x.clone())
     }
 }
@@ -54,7 +54,7 @@ impl<Node, Ref: TreeNodeRef<Node>> Iterator<Ref> for AncestorIterator<Ref> {
 
         // FIXME: Do we need two clones here?
         let x = self.current.get_ref().clone();
-        self.current = x.with_base(|n| TreeNodeRef::<Node>::parent_node(n));
+        self.current = TreeNodeRef::<Node>::parent_node(x.node());
         Some(x.clone())
     }
 }
@@ -98,11 +98,9 @@ pub trait TreeNodeRef<Node>: Clone {
     // Fundamental operations on refs.
 
     /// Borrows this node as immutable.
-    fn with_base<R>(&self, callback: &fn(&Node) -> R) -> R;
+    fn node<'a>(&'a self) -> &'a Node;
-
     /// Borrows this node as mutable.
-    fn with_mut_base<R>(&self, callback: &fn(&mut Node) -> R) -> R;
+    fn mut_node<'a>(&'a self) -> &'a mut Node;
-
 
     // Fundamental operations on nodes.
 
@@ -141,17 +139,15 @@ pub trait TreeNodeRef<Node>: Clone {
 
     /// Returns true if this node is disconnected from the tree or has no children.
     fn is_leaf(&self) -> bool {
-        do self.with_base |this_node| {
+        (get!(self.node(), first_child)).is_none()
-            (get!(this_node, first_child)).is_none()
-        }
     }
 
     /// Adds a new child to the end of this node's list of children.
     ///
     /// Fails unless `new_child` is disconnected from the tree.
     fn add_child(&self, new_child: Self) {
-        do self.with_mut_base |this_node| {
+        let this_node = self.mut_node();
-            do new_child.with_mut_base |new_child_node| {
+        let new_child_node = new_child.mut_node();
         assert!((get!(new_child_node, parent_node)).is_none());
         assert!((get!(new_child_node, prev_sibling)).is_none());
         assert!((get!(new_child_node, next_sibling)).is_none());
@@ -159,64 +155,57 @@ pub trait TreeNodeRef<Node>: Clone {
         match get!(this_node, last_child) {
             None => set!(this_node, set_first_child, Some(new_child.clone())),
             Some(last_child) => {
-                        do last_child.with_mut_base |last_child_node| {
+                let last_child_node = last_child.mut_node();
                 assert!((get!(last_child_node, next_sibling)).is_none());
                 set!(last_child_node, set_next_sibling, Some(new_child.clone()));
                 set!(new_child_node, set_prev_sibling, Some(last_child.clone()));
             }
         }
-                }
 
         set!(this_node, set_last_child, Some(new_child.clone()));
         set!(new_child_node, set_parent_node, Some((*self).clone()));
     }
-        }
-    }
 
     /// Removes the given child from this node's list of children.
     ///
     /// Fails unless `child` is a child of this node. (FIXME: This is not yet checked.)
     fn remove_child(&self, child: Self) {
-        do self.with_mut_base |this_node| {
+        let this_node = self.mut_node();
-            do child.with_mut_base |child_node| {
+        let child_node = child.mut_node();
         assert!((get!(child_node, parent_node)).is_some());
 
         match get!(child_node, prev_sibling) {
             None => set!(this_node, set_first_child, get!(child_node, next_sibling)),
             Some(prev_sibling) => {
-                        do prev_sibling.with_mut_base |prev_sibling_node| {
+                let prev_sibling_node = prev_sibling.mut_node();
                 set!(prev_sibling_node, set_next_sibling, get!(child_node, next_sibling));
             }
         }
-                }
 
         match get!(child_node, next_sibling) {
             None => set!(this_node, set_last_child, get!(child_node, prev_sibling)),
             Some(next_sibling) => {
-                        do next_sibling.with_mut_base |next_sibling_node| {
+                let next_sibling_node = next_sibling.mut_node();
                 set!(next_sibling_node, set_prev_sibling, get!(child_node, prev_sibling));
             }
         }
-                }
 
         set!(child_node, set_prev_sibling, None);
         set!(child_node, set_next_sibling, None);
         set!(child_node, set_parent_node,  None);
     }
-        }
-    }
 
     /// Iterates over all children of this node.
     fn children(&self) -> ChildIterator<Self> {
         ChildIterator {
-            current: self.with_base(|n| get!(n, first_child)),
+            current: get!(self.node(), first_child),
         }
     }
 
     /// Iterates over all ancestors of this node.
     fn ancestors(&self) -> AncestorIterator<Self> {
         AncestorIterator {
-            current: self.with_base(|n| get!(n, parent_node)),
+            current: get!(self.node(), parent_node),
         }
     }