Remove the layout debug methods.

Premature abstraction; nothing used the traits polymorphically. Furthermore,
they increased coupling between layout and the DOM.

src/components/main/dom/node.rs

@@ -12,7 +12,6 @@ use dom::characterdata::CharacterData;
 use dom::document::Document;
 use dom::element::{Element, ElementTypeId, HTMLImageElement, HTMLImageElementTypeId};
 use dom::element::{HTMLStyleElementTypeId};
-use layout::debug::DebugMethods;
 use scripting::script_task::global_script_context;
 
 use core::cast::transmute;
@@ -354,16 +353,14 @@ impl<View> AbstractNode<View> {
             obj: raw
         }
     }
-}
 
-impl<View> DebugMethods for AbstractNode<View> {
-    // Dumps the subtree rooted at this node, for debugging.
-    fn dump(&self) {
+    /// Dumps the subtree rooted at this node, for debugging.
+    pub fn dump(&self) {
         self.dump_indent(0);
     }
 
-    // Dumps the node tree, for debugging, with indentation.
-    fn dump_indent(&self, indent: uint) {
+    /// Dumps the node tree, for debugging, with indentation.
+    pub fn dump_indent(&self, indent: uint) {
         let mut s = ~"";
         for uint::range(0u, indent) |_i| {
             s += ~"    ";
@@ -378,7 +375,8 @@ impl<View> DebugMethods for AbstractNode<View> {
         }
     }
 
-    fn debug_str(&self) -> ~str {
+    /// Returns a string that describes this node.
+    pub fn debug_str(&self) -> ~str {
         fmt!("%?", self.type_id())
     }
 }

src/components/main/layout/box.rs

@@ -7,7 +7,6 @@
 use css::node_style::StyledNode;
 use dom::node::{AbstractNode, LayoutView};
 use layout::context::LayoutContext;
-use layout::debug::DebugMethods;
 use layout::display_list_builder::{DisplayListBuilder, ToGfxColor};
 use layout::flow::FlowContext;
 use layout::text::TextBoxData;
@@ -802,15 +801,14 @@ pub impl RenderBox {
         }
         get_propagated_text_decoration(self.nearest_ancestor_element())
     }
-}
 
-impl DebugMethods for RenderBox {
-    fn dump(&self) {
+    /// Dumps this node, for debugging.
+    pub fn dump(&self) {
         self.dump_indent(0);
     }
 
     /// Dumps a render box for debugging, with indentation.
-    fn dump_indent(&self, indent: uint) {
+    pub fn dump_indent(&self, indent: uint) {
         let mut string = ~"";
         for uint::range(0u, indent) |_i| {
             string += ~"    ";
@@ -821,7 +819,7 @@ impl DebugMethods for RenderBox {
     }
 
     /// Returns a debugging string describing this box.
-    fn debug_str(&self) -> ~str {
+    pub fn debug_str(&self) -> ~str {
         let representation = match *self {
             GenericRenderBoxClass(*) => ~"GenericRenderBox",
             ImageRenderBoxClass(*) => ~"ImageRenderBox",

src/components/main/layout/box_builder.rs

@@ -13,7 +13,6 @@ use layout::box::{GenericRenderBoxClass, ImageRenderBox, ImageRenderBoxClass, Re
 use layout::box::{RenderBoxBase, RenderBoxType, RenderBox_Generic, RenderBox_Image};
 use layout::box::{RenderBox_Text, UnscannedTextRenderBox, UnscannedTextRenderBoxClass};
 use layout::context::LayoutContext;
-use layout::debug::{BoxedMutDebugMethods, DebugMethods};
 use layout::flow::{AbsoluteFlow, BlockFlow, FloatFlow, Flow_Absolute, Flow_Block, Flow_Float};
 use layout::flow::{Flow_Inline, Flow_InlineBlock, Flow_Root, Flow_Table, FlowContext};
 use layout::flow::{FlowContextType, FlowData, InlineBlockFlow, InlineFlow, TableFlow};

src/components/main/layout/flow.rs

@@ -29,7 +29,6 @@ use dom::node::{AbstractNode, LayoutView};
 use layout::block::BlockFlowData;
 use layout::box::RenderBox;
 use layout::context::LayoutContext;
-use layout::debug::DebugMethods;
 use layout::display_list_builder::DisplayListBuilder;
 use layout::inline::{InlineFlowData};
 
@@ -372,15 +371,14 @@ impl<'self> FlowContext {
 
         true
     }
-}
 
-impl DebugMethods for FlowContext {
-    fn dump(&self) {
+    /// Dumps the flow tree for debugging.
+    pub fn dump(&self) {
         self.dump_indent(0);
     }
 
     /// Dumps the flow tree, for debugging, with indentation.
-    fn dump_indent(&self, indent: uint) {
+    pub fn dump_indent(&self, indent: uint) {
         let mut s = ~"|";
         for uint::range(0, indent) |_i| {
             s += ~"---- ";
@@ -395,7 +393,7 @@ impl DebugMethods for FlowContext {
         }
     }
 
-    fn debug_str(&self) -> ~str {
+    pub fn debug_str(&self) -> ~str {
         let repr = match *self {
             InlineFlow(inline) => {
                 let mut s = inline.boxes.foldl(~"InlineFlow(children=", |s, box| {

src/components/main/layout/inline.rs

@@ -8,7 +8,6 @@ use dom::node::{AbstractNode, LayoutView};
 use layout::box::{CannotSplit, GenericRenderBoxClass, ImageRenderBoxClass, RenderBox};
 use layout::box::{SplitDidFit, SplitDidNotFit, TextRenderBoxClass, UnscannedTextRenderBoxClass};
 use layout::context::LayoutContext;
-use layout::debug::{BoxedDebugMethods, BoxedMutDebugMethods, DebugMethods};
 use layout::display_list_builder::DisplayListBuilder;
 use layout::flow::{FlowContext, FlowData, InlineFlow};
 use layout::text::{UnscannedMethods, adapt_textbox_with_range};

src/components/main/layout/layout_task.rs

@@ -12,7 +12,6 @@ use dom::node::{AbstractNode, LayoutView};
 use layout::aux::{LayoutData, LayoutAuxMethods};
 use layout::box_builder::LayoutTreeBuilder;
 use layout::context::LayoutContext;
-use layout::debug::{BoxedMutDebugMethods, DebugMethods};
 use layout::display_list_builder::{DisplayListBuilder, FlowDisplayListBuilderMethods};
 use layout::flow::FlowContext;
 use layout_interface::{AddStylesheetMsg, BuildData, BuildMsg, ContentBoxQuery, ContentBoxResponse};

src/components/main/servo.rc

@@ -107,7 +107,6 @@ pub mod layout {
     pub mod box;
     pub mod box_builder;
     pub mod context;
-    pub mod debug;
     pub mod display_list_builder;
     pub mod flow;
     pub mod layout_task;