Use internal mutability for Reflector.

src/components/script/dom/attr.rs

@@ -71,10 +71,6 @@ impl Reflectable for Attr {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }
 
 impl Attr {

src/components/script/dom/attrlist.rs

@@ -57,8 +57,4 @@ impl Reflectable for AttrList {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/bindings/codegen/CodegenRust.py

@@ -1838,7 +1838,7 @@ def definition_body(self):
 
 %s
 
-  raw.mut_reflector().set_jsobject(obj);
+  raw.reflector().set_jsobject(obj);
 
   return raw;""" % CreateBindingJSObject(self.descriptor, "scope")
         else:
@@ -1848,7 +1848,7 @@ def definition_body(self):
     let proto = GetProtoObject(aCx, obj, obj);
     JS_SetPrototype(aCx, obj, proto);
   });
-  raw.mut_reflector().set_jsobject(obj);
+  raw.reflector().set_jsobject(obj);
   return raw;""" % CreateBindingJSObject(self.descriptor)
 
 

src/components/script/dom/bindings/element.rs

@@ -48,10 +48,6 @@ macro_rules! generate_cacheable_wrapper_base(
             fn reflector<'a>(&'a self) -> &'a Reflector {
                 self.$parent.reflector()
             }
-
-            fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-                self.$parent.mut_reflector()
-            }
         }
     )
 )

src/components/script/dom/bindings/js.rs

@@ -171,12 +171,6 @@ impl<T: Reflectable> Reflectable for JS<T> {
             (*self.unsafe_get()).reflector()
         }
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        unsafe {
-            (*self.unsafe_get()).mut_reflector()
-        }
-    }
 }
 
 impl<T: Reflectable> JS<T> {
@@ -500,8 +494,4 @@ impl<'a, T: Reflectable> Reflectable for JSRef<'a, T> {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.deref().reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.deref_mut().mut_reflector()
-    }
 }

src/components/script/dom/bindings/utils.rs

@@ -14,8 +14,9 @@ use servo_util::str::DOMString;
 use collections::hashmap::HashMap;
 use libc;
 use libc::c_uint;
-use std::mem;
+use std::cell::Cell;
 use std::cmp::Eq;
+use std::mem;
 use std::ptr;
 use std::ptr::null;
 use std::slice;
@@ -401,7 +402,6 @@ pub fn initialize_global(global: *mut JSObject) {
 
 pub trait Reflectable {
     fn reflector<'a>(&'a self) -> &'a Reflector;
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector;
 }
 
 pub fn reflect_dom_object<T: Reflectable>
@@ -415,31 +415,33 @@ pub fn reflect_dom_object<T: Reflectable>
 #[allow(raw_pointer_deriving)]
 #[deriving(Eq)]
 pub struct Reflector {
-    object: *mut JSObject,
+    object: Cell<*mut JSObject>,
 }
 
 impl Reflector {
     #[inline]
     pub fn get_jsobject(&self) -> *mut JSObject {
-        self.object
+        self.object.get()
     }
 
-    pub fn set_jsobject(&mut self, object: *mut JSObject) {
-        assert!(self.object.is_null());
+    pub fn set_jsobject(&self, object: *mut JSObject) {
+        assert!(self.object.get().is_null());
         assert!(object.is_not_null());
-        self.object = object;
+        self.object.set(object);
     }
 
     /// Return a pointer to the memory location at which the JS reflector object is stored.
     /// Used by Temporary values to root the reflector, as required by the JSAPI rooting
     /// APIs.
-    pub fn rootable<'a>(&'a mut self) -> &'a mut *mut JSObject {
-        &mut self.object
+    pub fn rootable(&self) -> *mut *mut JSObject {
+        &self.object as *Cell<*mut JSObject>
+                     as *mut Cell<*mut JSObject>
+                     as *mut *mut JSObject
     }
 
     pub fn new() -> Reflector {
         Reflector {
-            object: ptr::mut_null(),
+            object: Cell::new(ptr::mut_null()),
         }
     }
 }

src/components/script/dom/blob.rs

@@ -40,8 +40,4 @@ impl Reflectable for Blob {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/characterdata.rs

@@ -114,8 +114,4 @@ impl Reflectable for CharacterData {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.node.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.node.mut_reflector()
-    }
 }

src/components/script/dom/clientrect.rs

@@ -79,8 +79,4 @@ impl Reflectable for ClientRect {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/clientrectlist.rs

@@ -63,8 +63,4 @@ impl Reflectable for ClientRectList {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/console.rs

@@ -70,8 +70,4 @@ impl Reflectable for Console {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/customevent.rs

@@ -81,8 +81,4 @@ impl Reflectable for CustomEvent {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.event.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.event.mut_reflector()
-    }
 }

src/components/script/dom/document.rs

@@ -251,10 +251,6 @@ impl Reflectable for Document {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.node.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.node.mut_reflector()
-    }
 }
 
 trait PrivateDocumentHelpers {

src/components/script/dom/domexception.rs

@@ -83,10 +83,6 @@ impl Reflectable for DOMException {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }
 
 pub trait DOMExceptionMethods {

src/components/script/dom/domimplementation.rs

@@ -43,10 +43,6 @@ impl Reflectable for DOMImplementation {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }
 
 pub trait DOMImplementationMethods {

src/components/script/dom/domparser.rs

@@ -64,8 +64,4 @@ impl Reflectable for DOMParser {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/domtokenlist.rs

@@ -41,10 +41,6 @@ impl Reflectable for DOMTokenList {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }
 
 trait PrivateDOMTokenListHelpers {

src/components/script/dom/element.rs

@@ -62,10 +62,6 @@ impl Reflectable for Element {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.node.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.node.mut_reflector()
-    }
 }
 
 #[deriving(Eq,Encodable)]

src/components/script/dom/event.rs

@@ -199,8 +199,4 @@ impl Reflectable for Event {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/eventtarget.rs

@@ -278,10 +278,6 @@ impl Reflectable for EventTarget {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }
 
 impl<'a> VirtualMethods for JSRef<'a, EventTarget> {

src/components/script/dom/formdata.rs

@@ -70,8 +70,4 @@ impl Reflectable for FormData {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/htmlcollection.rs

@@ -221,8 +221,4 @@ impl Reflectable for HTMLCollection {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/location.rs

@@ -49,8 +49,4 @@ impl Reflectable for Location {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/mouseevent.rs

@@ -204,8 +204,4 @@ impl Reflectable for MouseEvent {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.mouseevent.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.mouseevent.mut_reflector()
-    }
 }

src/components/script/dom/navigator.rs

@@ -61,8 +61,4 @@ impl Reflectable for Navigator {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/node.rs

@@ -1941,10 +1941,6 @@ impl Reflectable for Node {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.eventtarget.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.eventtarget.mut_reflector()
-    }
 }
 
 pub fn document_from_node<T: NodeBase>(derived: &JSRef<T>) -> Temporary<Document> {

src/components/script/dom/nodelist.rs

@@ -86,8 +86,4 @@ impl Reflectable for NodeList {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/performance.rs

@@ -52,8 +52,4 @@ impl Reflectable for Performance {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/performancetiming.rs

@@ -50,8 +50,4 @@ impl Reflectable for PerformanceTiming {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/progressevent.rs

@@ -76,8 +76,4 @@ impl Reflectable for ProgressEvent {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.event.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.event.mut_reflector()
-    }
 }

src/components/script/dom/testbinding.rs

@@ -300,8 +300,4 @@ impl Reflectable for TestBinding {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector
-    }
 }

src/components/script/dom/uievent.rs

@@ -101,8 +101,4 @@ impl Reflectable for UIEvent {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.event.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.event.mut_reflector()
-    }
 }

src/components/script/dom/validitystate.rs

@@ -38,8 +38,4 @@ impl Reflectable for ValidityState {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         &self.reflector_
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        &mut self.reflector_
-    }
 }

src/components/script/dom/window.rs

@@ -275,10 +275,6 @@ impl Reflectable for Window {
     fn reflector<'a>(&'a self) -> &'a Reflector {
         self.eventtarget.reflector()
     }
-
-    fn mut_reflector<'a>(&'a mut self) -> &'a mut Reflector {
-        self.eventtarget.mut_reflector()
-    }
 }
 
 pub trait WindowHelpers {