3 files changed, 21 insertions, 2 deletions
diff --git a/src/components/script/dom/bindings/codegen/Bindings.conf b/src/components/script/dom/bindings/codegen/Bindings.conf
index 7f2a38a5143..b9fd8d9c1d8 100644
--- a/src/components/script/dom/bindings/codegen/Bindings.conf
+++ b/src/components/script/dom/bindings/codegen/Bindings.conf
@@ -154,6 +154,7 @@ DOMInterfaces = {
         'createComment',
         'createDocumentFragment',
         'createElement',
+        'createProcessingInstruction',
         'createTextNode',
         'title',
         'body',
diff --git a/src/components/script/dom/document.rs b/src/components/script/dom/document.rs
index 84343959866..7dd41f686d7 100644
--- a/src/components/script/dom/document.rs
+++ b/src/components/script/dom/document.rs
@@ -18,6 +18,7 @@ use dom::htmldocument::HTMLDocument;
 use dom::mouseevent::MouseEvent;
 use dom::node::{AbstractNode, Node, ElementNodeTypeId, DocumentNodeTypeId};
 use dom::text::Text;
+use dom::processinginstruction::ProcessingInstruction;
 use dom::uievent::UIEvent;
 use dom::window::Window;
 use dom::htmltitleelement::HTMLTitleElement;
@@ -276,6 +277,23 @@ impl Document {
         Comment::new(data, abstract_self)
     }
 
+    // http://dom.spec.whatwg.org/#dom-document-createprocessinginstruction
+    pub fn CreateProcessingInstruction(&self, abstract_self: AbstractDocument, target: DOMString,
+                                       data: DOMString) -> Fallible<AbstractNode> {
+        // Step 1.
+        if xml_name_type(target) == InvalidXMLName {
+            return Err(InvalidCharacter);
+        }
+
+        // Step 2.
+        if data.contains("?>") {
+            return Err(InvalidCharacter);
+        }
+
+        // Step 3.
+        Ok(ProcessingInstruction::new(target, data, abstract_self))
+    }
+
     pub fn CreateEvent(&self, interface: DOMString) -> Fallible<AbstractEvent> {
         match interface.as_slice() {
             "UIEvents" => Ok(UIEvent::new(self.window)),
diff --git a/src/components/script/dom/webidls/Document.webidl b/src/components/script/dom/webidls/Document.webidl
index 975fac355e2..a3b1c41648b 100644
--- a/src/components/script/dom/webidls/Document.webidl
+++ b/src/components/script/dom/webidls/Document.webidl
@@ -50,8 +50,8 @@ interface Document : Node {
   Text createTextNode(DOMString data);
   [Creator]
   Comment createComment(DOMString data);
-  /*[Creator, Throws]
-  ProcessingInstruction createProcessingInstruction(DOMString target, DOMString data);*/
+  [Creator, Throws]
+  ProcessingInstruction createProcessingInstruction(DOMString target, DOMString data);
 
   /*[Throws]
   Node importNode(Node node, optional boolean deep = true);