Auto merge of #364 - jimblandy:rcdom-debug, r=jdm

markup5ever: Implement Debug for BufferQueue, Node, NodeData.

Author: bors-servo

markup5ever/rcdom.rs

@@ -40,6 +40,7 @@ use std::borrow::Cow;
 use std::cell::{Cell, RefCell};
 use std::collections::HashSet;
 use std::default::Default;
+use std::fmt;
 use std::io;
 use std::mem;
 use std::rc::{Rc, Weak};
@@ -56,6 +57,7 @@ use ExpandedName;
 use QualName;
 
 /// The different kinds of nodes in the DOM.
+#[derive(Debug)]
 pub enum NodeData {
     /// The `Document` itself - the root node of a HTML document.
     Document,
@@ -120,6 +122,15 @@ impl Node {
     }
 }
 
+impl fmt::Debug for Node {
+    fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
+        fmt.debug_struct("Node")
+            .field("data", &self.data)
+            .field("children", &self.children)
+            .finish()
+    }
+}
+
 /// Reference to a DOM node.
 pub type Handle = Rc<Node>;
 

markup5ever/util/buffer_queue.rs

@@ -43,6 +43,7 @@ pub enum SetResult {
 /// Internally it uses [`VecDeque`] and has the same complexity properties.
 ///
 /// [`VecDeque`]: https://doc.rust-lang.org/std/collections/struct.VecDeque.html
+#[derive(Debug)]
 pub struct BufferQueue {
     /// Buffers to process.
     buffers: VecDeque<StrTendril>,