Implement ProcessingInstruction DOM interface

Spec:
http://dom.spec.whatwg.org/#interface-processinginstruction

Closes #1619.

1 files changed, 12 insertions, 1 deletions

diff --git a/src/components/script/dom/htmlserializer.rs b/src/components/script/dom/htmlserializer.rs
index 8dbedcb2679..260fa437154 100644
--- a/src/components/script/dom/htmlserializer.rs
+++ b/src/components/script/dom/htmlserializer.rs
@@ -5,7 +5,9 @@
 use servo_util::namespace;
 use dom::attr::Attr;
 use dom::node::NodeIterator;
-use dom::node::{DoctypeNodeTypeId, DocumentFragmentNodeTypeId, CommentNodeTypeId, DocumentNodeTypeId, ElementNodeTypeId, TextNodeTypeId, AbstractNode};
+use dom::node::{DoctypeNodeTypeId, DocumentFragmentNodeTypeId, CommentNodeTypeId};
+use dom::node::{DocumentNodeTypeId, ElementNodeTypeId, ProcessingInstructionNodeTypeId};
+use dom::node::{TextNodeTypeId, AbstractNode};
 
 pub fn serialize(iterator: &mut NodeIterator) -> ~str {
     let mut html = ~"";
@@ -29,6 +31,9 @@ pub fn serialize(iterator: &mut NodeIterator) -> ~str {
                 DoctypeNodeTypeId => {
                     serialize_doctype(node)
                 }
+                ProcessingInstructionNodeTypeId => {
+                    serialize_processing_instruction(node)
+                }
                 DocumentFragmentNodeTypeId => {
                     ~""
                 }
@@ -70,6 +75,12 @@ fn serialize_text(node: AbstractNode) -> ~str {
     })
 }
 
+fn serialize_processing_instruction(node: AbstractNode) -> ~str {
+    node.with_imm_processing_instruction(|processing_instruction| {
+        ~"<?" + processing_instruction.target + " " + processing_instruction.element.data + "?>"
+    })
+}
+
 fn serialize_doctype(node: AbstractNode) -> ~str {
     node.with_imm_doctype(|doctype| {
         ~"<!DOCTYPE" + doctype.name + ">"