servo: Merge #6641 - Directly append children to output node in parse_html_fragment (from michaelwu:direct-output); r=Ms2ger

Source-Repo: https://github.com/servo/servo
Source-Revision: 9534e8143f52ef091595c18caeb82cfc46cc20a4

servo/components/script/dom/node.rs

@@ -1023,20 +1023,14 @@ impl<'a> NodeHelpers for &'a Node {
     fn parse_fragment(self, markup: DOMString) -> Fallible<Root<DocumentFragment>> {
         let context_node: &Node = NodeCast::from_ref(self);
         let context_document = document_from_node(self);
-        let mut new_children: RootedVec<JS<Node>> = RootedVec::new();
+        let fragment = DocumentFragment::new(context_document.r());
         if context_document.r().is_html_document() {
-            parse_html_fragment(context_node, markup, &mut new_children);
+            let fragment_node = NodeCast::from_ref(fragment.r());
+            parse_html_fragment(context_node, markup, fragment_node);
         } else {
             // FIXME: XML case
             unimplemented!();
         }
-        let fragment = DocumentFragment::new(context_document.r());
-        {
-            let fragment_node = NodeCast::from_ref(fragment.r());
-            for node in new_children.iter() {
-                fragment_node.AppendChild(node.root().r()).unwrap();
-            }
-        }
         Ok(fragment)
     }
 }

servo/components/script/parse/html.rs

@@ -14,7 +14,6 @@ use dom::bindings::codegen::InheritTypes::{HTMLFormElementDerived, NodeCast};
 use dom::bindings::codegen::InheritTypes::ProcessingInstructionCast;
 use dom::bindings::js::{JS, Root};
 use dom::bindings::js::{RootedReference};
-use dom::bindings::trace::RootedVec;
 use dom::characterdata::{CharacterDataHelpers, CharacterDataTypeId};
 use dom::comment::Comment;
 use dom::document::{Document, DocumentHelpers};
@@ -284,7 +283,7 @@ pub fn parse_html(document: &Document,
 // https://html.spec.whatwg.org/multipage/#parsing-html-fragments
 pub fn parse_html_fragment(context_node: &Node,
                            input: DOMString,
-                           output: &mut RootedVec<JS<Node>>) {
+                           output: &Node) {
     let window = window_from_node(context_node);
     let context_document = document_from_node(context_node);
     let context_document = context_document.r();
@@ -314,6 +313,6 @@ pub fn parse_html_fragment(context_node: &Node,
     let root_element = document.r().GetDocumentElement().expect("no document element");
     let root_node = NodeCast::from_ref(root_element.r());
     for child in root_node.children() {
-        output.push(JS::from_rooted(&child));
+        output.AppendChild(child.r()).unwrap();
     }
 }