Auto merge of #209 - jdm:template, r=SimonSapin

Make get_template_contents take a mutable self argument.

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Author: bors-servo

examples/noop-tree-builder.rs

@@ -46,7 +46,7 @@ impl TreeSink for Sink {
         0
     }
 
-    fn get_template_contents(&self, target: usize) -> usize {
+    fn get_template_contents(&mut self, target: usize) -> usize {
         if let Some(&qualname!(html, "template")) = self.names.get(&target) {
             target + 1
         } else {

examples/print-tree-actions.rs

@@ -50,7 +50,7 @@ impl TreeSink for Sink {
         0
     }
 
-    fn get_template_contents(&self, target: usize) -> usize {
+    fn get_template_contents(&mut self, target: usize) -> usize {
         if let Some(&qualname!(html, "template")) = self.names.get(&target) {
             target + 1
         } else {

src/rcdom.rs

@@ -177,7 +177,7 @@ impl TreeSink for RcDom {
         self.document.clone()
     }
 
-    fn get_template_contents(&self, target: Handle) -> Handle {
+    fn get_template_contents(&mut self, target: Handle) -> Handle {
         if let Element(_, Template(ref contents), _) = target.borrow().node {
             contents.clone()
         } else {

src/tree_builder/interface.rs

@@ -76,7 +76,7 @@ pub trait TreeSink {
     /// Get a handle to a template's template contents. The tree builder
     /// promises this will never be called with something else than
     /// a template element.
-    fn get_template_contents(&self, target: Self::Handle) -> Self::Handle;
+    fn get_template_contents(&mut self, target: Self::Handle) -> Self::Handle;
 
     /// Do two handles refer to the same node?
     fn same_node(&self, x: Self::Handle, y: Self::Handle) -> bool;