mirror of
https://github.com/servo/servo.git
synced 2025-08-03 20:50:07 +01:00
Do not lazy initialize RareData on its getters
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parent
d0b2e826ef
commit
9b2eb77530
4 changed files with 101 additions and 109 deletions
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@ -332,75 +332,60 @@ impl Element {
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}
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pub fn set_custom_element_state(&self, state: CustomElementState) {
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self.rare_data_mut().as_mut().unwrap().custom_element_state = state;
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self.ensure_rare_data().custom_element_state = state;
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}
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pub fn get_custom_element_state(&self) -> CustomElementState {
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self.rare_data().as_ref().unwrap().custom_element_state
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if let Some(rare_data) = self.rare_data().as_ref() {
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return rare_data.custom_element_state;
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}
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CustomElementState::Undefined
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}
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pub fn set_custom_element_definition(&self, definition: Rc<CustomElementDefinition>) {
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self.rare_data_mut()
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.as_mut()
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.unwrap()
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.custom_element_definition = Some(definition);
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self.ensure_rare_data().custom_element_definition = Some(definition);
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}
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pub fn get_custom_element_definition(&self) -> Option<Rc<CustomElementDefinition>> {
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self.rare_data()
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.as_ref()
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.unwrap()
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.custom_element_definition
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.clone()
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if let Some(rare_data) = self.rare_data().as_ref() {
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return rare_data.custom_element_definition.clone();
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}
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None
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}
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pub fn push_callback_reaction(&self, function: Rc<Function>, args: Box<[Heap<JSVal>]>) {
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self.rare_data_mut()
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.as_mut()
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.unwrap()
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self.ensure_rare_data()
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.custom_element_reaction_queue
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.push(CustomElementReaction::Callback(function, args));
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}
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pub fn push_upgrade_reaction(&self, definition: Rc<CustomElementDefinition>) {
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self.rare_data_mut()
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.as_mut()
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.unwrap()
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self.ensure_rare_data()
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.custom_element_reaction_queue
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.push(CustomElementReaction::Upgrade(definition));
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}
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pub fn clear_reaction_queue(&self) {
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self.rare_data_mut()
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.as_mut()
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.unwrap()
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self.ensure_rare_data()
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.custom_element_reaction_queue
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.clear();
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}
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pub fn invoke_reactions(&self) {
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// TODO: This is not spec compliant, as this will allow some reactions to be processed
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// after clear_reaction_queue has been called.
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rooted_vec!(let mut reactions);
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while !self
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.rare_data()
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.as_ref()
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.unwrap()
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.custom_element_reaction_queue
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.is_empty()
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{
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mem::swap(
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&mut *reactions,
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&mut self
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.rare_data_mut()
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.as_mut()
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.unwrap()
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.custom_element_reaction_queue,
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);
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for reaction in reactions.iter() {
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reaction.invoke(self);
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if let Some(rare_data) = self.rare_data().as_ref() {
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// TODO: This is not spec compliant, as this will allow some reactions to be processed
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// after clear_reaction_queue has been called.
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rooted_vec!(let mut reactions);
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while !rare_data.custom_element_reaction_queue.is_empty() {
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mem::swap(
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&mut *reactions,
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&mut self.ensure_rare_data().custom_element_reaction_queue,
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);
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for reaction in reactions.iter() {
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reaction.invoke(self);
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}
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reactions.clear();
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}
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reactions.clear();
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}
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}
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@ -458,7 +443,10 @@ impl Element {
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}
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pub fn is_shadow_host(&self) -> bool {
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self.rare_data().as_ref().unwrap().shadow_root.is_some()
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if let Some(rare_data) = self.rare_data().as_ref() {
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return rare_data.shadow_root.is_some();
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}
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false
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}
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/// https://dom.spec.whatwg.org/#dom-element-attachshadow
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@ -502,7 +490,7 @@ impl Element {
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// Steps 4, 5 and 6.
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let shadow_root = ShadowRoot::new(self, &*self.node.owner_doc());
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self.rare_data_mut().as_mut().unwrap().shadow_root = Some(Dom::from_ref(&*shadow_root));
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self.ensure_rare_data().shadow_root = Some(Dom::from_ref(&*shadow_root));
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if self.is_connected() {
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self.node.owner_doc().register_shadow_root(&*shadow_root);
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@ -1077,13 +1065,10 @@ impl LayoutElementHelpers for LayoutDom<Element> {
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#[inline]
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#[allow(unsafe_code)]
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unsafe fn get_shadow_root_for_layout(&self) -> Option<LayoutDom<ShadowRoot>> {
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(*self.unsafe_get())
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.rare_data_for_layout()
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.as_ref()
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.unwrap()
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.shadow_root
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.as_ref()
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.map(|sr| sr.to_layout())
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if let Some(rare_data) = (*self.unsafe_get()).rare_data_for_layout().as_ref() {
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return rare_data.shadow_root.as_ref().map(|sr| sr.to_layout());
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}
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None
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}
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}
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@ -2827,13 +2812,15 @@ impl VirtualMethods for Element {
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let doc = document_from_node(self);
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if let Some(ref shadow_root) = self.rare_data().as_ref().unwrap().shadow_root {
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doc.register_shadow_root(&shadow_root);
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let shadow_root = shadow_root.upcast::<Node>();
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shadow_root.set_flag(NodeFlags::IS_CONNECTED, context.tree_connected);
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for node in shadow_root.children() {
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node.set_flag(NodeFlags::IS_CONNECTED, context.tree_connected);
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node.bind_to_tree(context);
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if let Some(rare_data) = self.rare_data().as_ref() {
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if let Some(ref shadow_root) = rare_data.shadow_root {
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doc.register_shadow_root(&shadow_root);
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let shadow_root = shadow_root.upcast::<Node>();
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shadow_root.set_flag(NodeFlags::IS_CONNECTED, context.tree_connected);
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for node in shadow_root.children() {
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node.set_flag(NodeFlags::IS_CONNECTED, context.tree_connected);
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node.bind_to_tree(context);
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}
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}
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}
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@ -2865,13 +2852,15 @@ impl VirtualMethods for Element {
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let doc = document_from_node(self);
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if let Some(ref shadow_root) = self.rare_data().as_ref().unwrap().shadow_root {
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doc.unregister_shadow_root(&shadow_root);
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let shadow_root = shadow_root.upcast::<Node>();
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shadow_root.set_flag(NodeFlags::IS_CONNECTED, false);
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for node in shadow_root.children() {
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node.set_flag(NodeFlags::IS_CONNECTED, false);
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node.unbind_from_tree(context);
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if let Some(rare_data) = self.rare_data().as_ref() {
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if let Some(ref shadow_root) = rare_data.shadow_root {
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doc.unregister_shadow_root(&shadow_root);
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let shadow_root = shadow_root.upcast::<Node>();
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shadow_root.set_flag(NodeFlags::IS_CONNECTED, false);
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for node in shadow_root.children() {
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node.set_flag(NodeFlags::IS_CONNECTED, false);
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node.unbind_from_tree(context);
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}
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}
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}
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@ -635,29 +635,22 @@ macro_rules! handle_potential_webgl_error {
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macro_rules! impl_rare_data (
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($type:ty) => (
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fn init_rare_data(&self) {
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fn rare_data(&self) -> Ref<Option<Box<$type>>> {
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self.rare_data.borrow()
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}
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fn ensure_rare_data(&self) -> RefMut<Box<$type>> {
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let mut rare_data = self.rare_data.borrow_mut();
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if rare_data.is_none() {
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*rare_data = Some(Default::default());
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}
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}
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fn rare_data(&self) -> Ref<Option<Box<$type>>> {
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self.init_rare_data();
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self.rare_data.borrow()
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}
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fn rare_data_mut(&self) -> RefMut<Option<Box<$type>>> {
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self.init_rare_data();
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self.rare_data.borrow_mut()
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RefMut::map(rare_data, |rare_data| {
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rare_data.as_mut().unwrap()
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})
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}
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#[allow(unsafe_code)]
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fn rare_data_for_layout(&self) -> &Option<Box<$type>> {
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let mut rare_data = self.rare_data.borrow_mut_for_layout();
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if rare_data.is_none() {
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*rare_data = Some(Default::default());
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}
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unsafe { self.rare_data.borrow_for_layout() }
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}
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);
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@ -452,26 +452,25 @@ impl Node {
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}
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/// Return all registered mutation observers for this node.
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/// XXX(ferjm) This should probably be split into two functions,
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/// `registered_mutation_observers`, which returns an Option or
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/// an empty slice or something, and doesn't create the rare data,
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/// and `registered_mutation_observers_mut`, which does lazily
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/// initialize the raredata.
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pub fn registered_mutation_observers(&self) -> RefMut<Vec<RegisteredObserver>> {
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RefMut::map(self.rare_data_mut(), |rare_data| {
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&mut rare_data.as_mut().unwrap().mutation_observers
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RefMut::map(self.ensure_rare_data(), |rare_data| {
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&mut rare_data.mutation_observers
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})
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}
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/// Add a new mutation observer for a given node.
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pub fn add_mutation_observer(&self, observer: RegisteredObserver) {
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self.rare_data_mut()
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.as_mut()
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.unwrap()
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.mutation_observers
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.push(observer);
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self.ensure_rare_data().mutation_observers.push(observer);
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}
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/// Removes the mutation observer for a given node.
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pub fn remove_mutation_observer(&self, observer: &MutationObserver) {
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self.rare_data_mut()
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.as_mut()
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.unwrap()
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self.ensure_rare_data()
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.mutation_observers
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.retain(|reg_obs| &*reg_obs.observer != observer)
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}
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@ -951,16 +950,17 @@ impl Node {
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if let Some(ref shadow_root) = self.downcast::<ShadowRoot>() {
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return Some(DomRoot::from_ref(shadow_root));
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}
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self.rare_data()
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.as_ref()
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.unwrap()
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.owner_shadow_root
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.as_ref()
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.map(|sr| DomRoot::from_ref(&**sr))
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if let Some(rare_data) = self.rare_data().as_ref() {
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return rare_data
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.owner_shadow_root
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.as_ref()
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.map(|sr| DomRoot::from_ref(&**sr));
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}
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None
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}
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pub fn set_owner_shadow_root(&self, shadow_root: &ShadowRoot) {
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self.rare_data_mut().as_mut().unwrap().owner_shadow_root = Some(Dom::from_ref(shadow_root));
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self.ensure_rare_data().owner_shadow_root = Some(Dom::from_ref(shadow_root));
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}
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pub fn is_in_html_doc(&self) -> bool {
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@ -1281,13 +1281,13 @@ impl LayoutNodeHelpers for LayoutDom<Node> {
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#[inline]
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#[allow(unsafe_code)]
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unsafe fn owner_shadow_root_for_layout(&self) -> Option<LayoutDom<ShadowRoot>> {
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(*self.unsafe_get())
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.rare_data_for_layout()
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.as_ref()
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.unwrap()
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.owner_shadow_root
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.as_ref()
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.map(|sr| sr.to_layout())
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if let Some(rare_data) = (*self.unsafe_get()).rare_data_for_layout().as_ref() {
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return rare_data
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.owner_shadow_root
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.as_ref()
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.map(|sr| sr.to_layout());
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}
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None
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}
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#[inline]
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@ -2293,14 +2293,21 @@ impl NodeMethods for Node {
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// https://dom.spec.whatwg.org/#dom-node-getrootnode
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fn GetRootNode(&self, options: &GetRootNodeOptions) -> DomRoot<Node> {
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if options.composed {
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if let Some(ref shadow_root) = self.rare_data().as_ref().unwrap().owner_shadow_root {
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// shadow-including root.
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return shadow_root.Host().upcast::<Node>().GetRootNode(options);
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if let Some(rare_data) = self.rare_data().as_ref() {
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if let Some(ref shadow_root) = rare_data.owner_shadow_root {
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// shadow-including root.
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return shadow_root.Host().upcast::<Node>().GetRootNode(options);
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}
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}
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}
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if let Some(ref shadow_root) = self.rare_data().as_ref().unwrap().owner_shadow_root {
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DomRoot::from_ref(shadow_root.upcast::<Node>())
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} else if self.is_in_doc() {
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if let Some(rare_data) = self.rare_data().as_ref() {
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if let Some(ref shadow_root) = rare_data.owner_shadow_root {
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return DomRoot::from_ref(shadow_root.upcast::<Node>());
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}
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}
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if self.is_in_doc() {
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DomRoot::from_ref(self.owner_doc().upcast::<Node>())
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} else {
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self.inclusive_ancestors(ShadowIncluding::No)
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@ -10,6 +10,9 @@ use crate::dom::mutationobserver::RegisteredObserver;
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use crate::dom::shadowroot::ShadowRoot;
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use std::rc::Rc;
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//XXX(ferjm) Ideally merge NodeRareData and ElementRareData so they share
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// storage.
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#[derive(Default, JSTraceable, MallocSizeOf)]
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#[must_root]
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pub struct NodeRareData {
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