Mirrors/servo
1
0
Fork 0
mirror of https://github.com/servo/servo.git synced 2025-08-06 06:00:15 +01:00
Code Issues Projects Releases Packages Wiki Activity

task -> thread

Browse source
This commit is contained in:
rohan.prinja 2015-11-14 05:07:55 +09:00 • committed by Rohan Prinja
parent f00532bab0
commit 1f02c4ebbb
119 changed files with 1209 additions and 1207 deletions
Download patch file Download diff file Expand all files Collapse all files

20
components/script/dom/bindings/cell.rs
View file

@ -7,8 +7,8 @@
use dom::bindings::trace::JSTraceable;
use js::jsapi::JSTracer;
use std::cell::{BorrowState, Ref, RefCell, RefMut};
use util::task_state;
use util::task_state::SCRIPT;
use util::thread_state;
use util::thread_state::SCRIPT;
/// A mutable field in the DOM.
///
@ -25,10 +25,10 @@ pub struct DOMRefCell<T> {
impl<T> DOMRefCell<T> {
/// Return a reference to the contents.
///
/// For use in the layout task only.
/// For use in the layout thread only.
#[allow(unsafe_code)]
pub unsafe fn borrow_for_layout(&self) -> &T {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
&*self.value.as_unsafe_cell().get()
}
@ -40,7 +40,7 @@ impl<T> DOMRefCell<T> {
pub unsafe fn borrow_for_gc_trace(&self) -> &T {
// FIXME: IN_GC isn't reliable enough - doesn't catch minor GCs
// https://github.com/servo/servo/issues/6389
// debug_assert!(task_state::get().contains(SCRIPT | IN_GC));
// debug_assert!(thread_state::get().contains(SCRIPT | IN_GC));
&*self.value.as_unsafe_cell().get()
}
@ -48,7 +48,7 @@ impl<T> DOMRefCell<T> {
///
#[allow(unsafe_code)]
pub unsafe fn borrow_for_script_deallocation(&self) -> &mut T {
debug_assert!(task_state::get().contains(SCRIPT));
debug_assert!(thread_state::get().contains(SCRIPT));
&mut *self.value.as_unsafe_cell().get()
}
@ -70,7 +70,7 @@ impl<T> DOMRefCell<T> {
///
/// Panics if this is called off the script thread.
pub fn try_borrow(&self) -> Option<Ref<T>> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
match self.value.borrow_state() {
BorrowState::Writing => None,
_ => Some(self.value.borrow()),
@ -88,17 +88,17 @@ impl<T> DOMRefCell<T> {
///
/// Panics if this is called off the script thread.
pub fn try_borrow_mut(&self) -> Option<RefMut<T>> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
match self.value.borrow_state() {
BorrowState::Unused => Some(self.value.borrow_mut()),
_ => None,
}
}
/// Version of the above that we use during restyle while the script task
/// Version of the above that we use during restyle while the script thread
/// is blocked.
pub fn borrow_mut_for_layout(&self) -> RefMut<T> {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
self.value.borrow_mut()
}
}

42
components/script/dom/bindings/global.rs
View file

@ -19,9 +19,9 @@ use js::jsapi::GetGlobalForObjectCrossCompartment;
use js::jsapi::{JSContext, JSObject, JS_GetClass, MutableHandleValue};
use js::{JSCLASS_IS_DOMJSCLASS, JSCLASS_IS_GLOBAL};
use msg::constellation_msg::{ConstellationChan, PipelineId};
use net_traits::ResourceTask;
use net_traits::ResourceThread;
use profile_traits::mem;
use script_task::{CommonScriptMsg, ScriptChan, ScriptPort, ScriptTask};
use script_thread::{CommonScriptMsg, ScriptChan, ScriptPort, ScriptThread};
use script_traits::{MsDuration, ScriptMsg as ConstellationMsg, TimerEventRequest};
use timers::{ScheduledCallback, TimerHandle};
use url::Url;
@ -65,7 +65,7 @@ impl<'a> GlobalRef<'a> {
}
}
/// Extract a `Window`, causing task failure if the global object is not
/// Extract a `Window`, causing thread failure if the global object is not
/// a `Window`.
pub fn as_window(&self) -> &window::Window {
match *self {
@ -82,7 +82,7 @@ impl<'a> GlobalRef<'a> {
}
}
/// Get a `mem::ProfilerChan` to send messages to the memory profiler task.
/// Get a `mem::ProfilerChan` to send messages to the memory profiler thread.
pub fn mem_profiler_chan(&self) -> mem::ProfilerChan {
match *self {
GlobalRef::Window(window) => window.mem_profiler_chan(),
@ -107,7 +107,7 @@ impl<'a> GlobalRef<'a> {
}
/// Get an `IpcSender<ScriptToDevtoolsControlMsg>` to send messages to Devtools
/// task when available.
/// thread when available.
pub fn devtools_chan(&self) -> Option<IpcSender<ScriptToDevtoolsControlMsg>> {
match *self {
GlobalRef::Window(window) => window.devtools_chan(),
@ -115,16 +115,16 @@ impl<'a> GlobalRef<'a> {
}
}
/// Get the `ResourceTask` for this global scope.
pub fn resource_task(&self) -> ResourceTask {
/// Get the `ResourceThread` for this global scope.
pub fn resource_thread(&self) -> ResourceThread {
match *self {
GlobalRef::Window(ref window) => {
let doc = window.Document();
let doc = doc.r();
let loader = doc.loader();
(*loader.resource_task).clone()
(*loader.resource_thread).clone()
}
GlobalRef::Worker(ref worker) => worker.resource_task().clone(),
GlobalRef::Worker(ref worker) => worker.resource_thread().clone(),
}
}
@ -154,45 +154,45 @@ impl<'a> GlobalRef<'a> {
/// `ScriptChan` used to send messages to the event loop of this global's
/// thread.
pub fn dom_manipulation_task_source(&self) -> Box<ScriptChan + Send> {
pub fn dom_manipulation_thread_source(&self) -> Box<ScriptChan + Send> {
match *self {
GlobalRef::Window(ref window) => window.dom_manipulation_task_source(),
GlobalRef::Window(ref window) => window.dom_manipulation_thread_source(),
GlobalRef::Worker(ref worker) => worker.script_chan(),
}
}
/// `ScriptChan` used to send messages to the event loop of this global's
/// thread.
pub fn user_interaction_task_source(&self) -> Box<ScriptChan + Send> {
pub fn user_interaction_thread_source(&self) -> Box<ScriptChan + Send> {
match *self {
GlobalRef::Window(ref window) => window.user_interaction_task_source(),
GlobalRef::Window(ref window) => window.user_interaction_thread_source(),
GlobalRef::Worker(ref worker) => worker.script_chan(),
}
}
/// `ScriptChan` used to send messages to the event loop of this global's
/// thread.
pub fn networking_task_source(&self) -> Box<ScriptChan + Send> {
pub fn networking_thread_source(&self) -> Box<ScriptChan + Send> {
match *self {
GlobalRef::Window(ref window) => window.networking_task_source(),
GlobalRef::Window(ref window) => window.networking_thread_source(),
GlobalRef::Worker(ref worker) => worker.script_chan(),
}
}
/// `ScriptChan` used to send messages to the event loop of this global's
/// thread.
pub fn history_traversal_task_source(&self) -> Box<ScriptChan + Send> {
pub fn history_traversal_thread_source(&self) -> Box<ScriptChan + Send> {
match *self {
GlobalRef::Window(ref window) => window.history_traversal_task_source(),
GlobalRef::Window(ref window) => window.history_traversal_thread_source(),
GlobalRef::Worker(ref worker) => worker.script_chan(),
}
}
/// `ScriptChan` used to send messages to the event loop of this global's
/// thread.
pub fn file_reading_task_source(&self) -> Box<ScriptChan + Send> {
pub fn file_reading_thread_source(&self) -> Box<ScriptChan + Send> {
match *self {
GlobalRef::Window(ref window) => window.file_reading_task_source(),
GlobalRef::Window(ref window) => window.file_reading_thread_source(),
GlobalRef::Worker(ref worker) => worker.script_chan(),
}
}
@ -207,11 +207,11 @@ impl<'a> GlobalRef<'a> {
}
}
/// Process a single event as if it were the next event in the task queue for
/// Process a single event as if it were the next event in the thread queue for
/// this global.
pub fn process_event(&self, msg: CommonScriptMsg) {
match *self {
GlobalRef::Window(_) => ScriptTask::process_event(msg),
GlobalRef::Window(_) => ScriptThread::process_event(msg),
GlobalRef::Worker(ref worker) => worker.process_event(msg),
}
}

60
components/script/dom/bindings/js.rs
View file

@ -33,7 +33,7 @@ use dom::node::Node;
use js::jsapi::{Heap, JSObject, JSTracer};
use js::jsval::JSVal;
use layout_interface::TrustedNodeAddress;
use script_task::STACK_ROOTS;
use script_thread::STACK_ROOTS;
use std::cell::UnsafeCell;
use std::default::Default;
use std::hash::{Hash, Hasher};
@ -41,7 +41,7 @@ use std::mem;
use std::ops::Deref;
use std::ptr;
use util::mem::HeapSizeOf;
use util::task_state;
use util::thread_state;
/// A traced reference to a DOM object
///
@ -66,7 +66,7 @@ impl<T> HeapSizeOf for JS<T> {
impl<T> JS<T> {
/// Returns `LayoutJS<T>` containing the same pointer.
pub unsafe fn to_layout(&self) -> LayoutJS<T> {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
LayoutJS {
ptr: self.ptr.clone(),
}
@ -78,7 +78,7 @@ impl<T: Reflectable> JS<T> {
/// XXX Not a great API. Should be a call on Root<T> instead
#[allow(unrooted_must_root)]
pub fn from_rooted(root: &Root<T>) -> JS<T> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
JS {
ptr: unsafe { NonZero::new(&**root) },
}
@ -86,7 +86,7 @@ impl<T: Reflectable> JS<T> {
/// Create a JS<T> from a &T
#[allow(unrooted_must_root)]
pub fn from_ref(obj: &T) -> JS<T> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
JS {
ptr: unsafe { NonZero::new(&*obj) },
}
@ -97,7 +97,7 @@ impl<T: Reflectable> Deref for JS<T> {
type Target = T;
fn deref(&self) -> &T {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
// We can only have &JS<T> from a rooted thing, so it's safe to deref
// it to &T.
unsafe { &**self.ptr }
@ -123,7 +123,7 @@ impl<T: Castable> LayoutJS<T> {
where U: Castable,
T: DerivedFrom<U>
{
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
unsafe { mem::transmute_copy(self) }
}
@ -131,7 +131,7 @@ impl<T: Castable> LayoutJS<T> {
pub fn downcast<U>(&self) -> Option<LayoutJS<U>>
where U: DerivedFrom<T>
{
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
unsafe {
if (*self.unsafe_get()).is::<U>() {
Some(mem::transmute_copy(self))
@ -145,7 +145,7 @@ impl<T: Castable> LayoutJS<T> {
impl<T: Reflectable> LayoutJS<T> {
/// Get the reflector.
pub unsafe fn get_jsobject(&self) -> *mut JSObject {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
(**self.ptr).reflector().get_jsobject().get()
}
}
@ -184,7 +184,7 @@ impl <T> Clone for JS<T> {
#[inline]
#[allow(unrooted_must_root)]
fn clone(&self) -> JS<T> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
JS {
ptr: self.ptr.clone(),
}
@ -194,7 +194,7 @@ impl <T> Clone for JS<T> {
impl <T> Clone for LayoutJS<T> {
#[inline]
fn clone(&self) -> LayoutJS<T> {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
LayoutJS {
ptr: self.ptr.clone(),
}
@ -205,7 +205,7 @@ impl LayoutJS<Node> {
/// Create a new JS-owned value wrapped from an address known to be a
/// `Node` pointer.
pub unsafe fn from_trusted_node_address(inner: TrustedNodeAddress) -> LayoutJS<Node> {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
let TrustedNodeAddress(addr) = inner;
LayoutJS {
ptr: NonZero::new(addr as *const Node),
@ -240,7 +240,7 @@ pub struct MutHeapJSVal {
impl MutHeapJSVal {
/// Create a new `MutHeapJSVal`.
pub fn new() -> MutHeapJSVal {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
MutHeapJSVal {
val: UnsafeCell::new(Heap::default()),
}
@ -249,7 +249,7 @@ impl MutHeapJSVal {
/// Set this `MutHeapJSVal` to the given value, calling write barriers as
/// appropriate.
pub fn set(&self, val: JSVal) {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe {
let cell = self.val.get();
(*cell).set(val);
@ -258,7 +258,7 @@ impl MutHeapJSVal {
/// Get the value in this `MutHeapJSVal`, calling read barriers as appropriate.
pub fn get(&self) -> JSVal {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe { (*self.val.get()).get() }
}
}
@ -278,7 +278,7 @@ pub struct MutHeap<T: HeapGCValue> {
impl<T: Reflectable> MutHeap<JS<T>> {
/// Create a new `MutHeap`.
pub fn new(initial: &T) -> MutHeap<JS<T>> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
MutHeap {
val: UnsafeCell::new(JS::from_ref(initial)),
}
@ -286,7 +286,7 @@ impl<T: Reflectable> MutHeap<JS<T>> {
/// Set this `MutHeap` to the given value.
pub fn set(&self, val: &T) {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe {
*self.val.get() = JS::from_ref(val);
}
@ -294,7 +294,7 @@ impl<T: Reflectable> MutHeap<JS<T>> {
/// Get the value in this `MutHeap`.
pub fn get(&self) -> Root<T> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe {
Root::from_ref(&*ptr::read(self.val.get()))
}
@ -339,7 +339,7 @@ pub struct MutNullableHeap<T: HeapGCValue> {
impl<T: Reflectable> MutNullableHeap<JS<T>> {
/// Create a new `MutNullableHeap`.
pub fn new(initial: Option<&T>) -> MutNullableHeap<JS<T>> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
MutNullableHeap {
ptr: UnsafeCell::new(initial.map(JS::from_ref)),
}
@ -350,7 +350,7 @@ impl<T: Reflectable> MutNullableHeap<JS<T>> {
pub fn or_init<F>(&self, cb: F) -> Root<T>
where F: FnOnce() -> Root<T>
{
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
match self.get() {
Some(inner) => inner,
None => {
@ -365,14 +365,14 @@ impl<T: Reflectable> MutNullableHeap<JS<T>> {
/// For use by layout, which can't use safe types like Temporary.
#[allow(unrooted_must_root)]
pub unsafe fn get_inner_as_layout(&self) -> Option<LayoutJS<T>> {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
ptr::read(self.ptr.get()).map(|js| js.to_layout())
}
/// Get a rooted value out of this object
#[allow(unrooted_must_root)]
pub fn get(&self) -> Option<Root<T>> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe {
ptr::read(self.ptr.get()).map(|o| Root::from_ref(&*o))
}
@ -380,7 +380,7 @@ impl<T: Reflectable> MutNullableHeap<JS<T>> {
/// Set this `MutNullableHeap` to the given value.
pub fn set(&self, val: Option<&T>) {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe {
*self.ptr.get() = val.map(|p| JS::from_ref(p));
}
@ -407,7 +407,7 @@ impl<'a, T: Reflectable> PartialEq<Option<&'a T>> for MutNullableHeap<JS<T>> {
impl<T: HeapGCValue> Default for MutNullableHeap<T> {
#[allow(unrooted_must_root)]
fn default() -> MutNullableHeap<T> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
MutNullableHeap {
ptr: UnsafeCell::new(None),
}
@ -426,7 +426,7 @@ impl<T: Reflectable> LayoutJS<T> {
/// the only method that be safely accessed from layout. (The fact that
/// this is unsafe is what necessitates the layout wrappers.)
pub unsafe fn unsafe_get(&self) -> *const T {
debug_assert!(task_state::get().is_layout());
debug_assert!(thread_state::get().is_layout());
*self.ptr
}
}
@ -479,7 +479,7 @@ impl Clone for RootCollectionPtr {
impl RootCollection {
/// Create an empty collection of roots
pub fn new() -> RootCollection {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
RootCollection {
roots: UnsafeCell::new(vec![]),
}
@ -487,7 +487,7 @@ impl RootCollection {
/// Start tracking a stack-based root
fn root(&self, untracked_reflector: *const Reflector) {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe {
let mut roots = &mut *self.roots.get();
roots.push(untracked_reflector);
@ -497,7 +497,7 @@ impl RootCollection {
/// Stop tracking a stack-based root, asserting if the reflector isn't found
fn unroot<T: Reflectable>(&self, rooted: &Root<T>) {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe {
let mut roots = &mut *self.roots.get();
let old_reflector = &*rooted.reflector();
@ -562,7 +562,7 @@ impl<T: Reflectable> Root<T> {
/// It cannot not outlive its associated `RootCollection`, and it gives
/// out references which cannot outlive this new `Root`.
pub fn new(unrooted: NonZero<*const T>) -> Root<T> {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
STACK_ROOTS.with(|ref collection| {
let RootCollectionPtr(collection) = collection.get().unwrap();
unsafe { (*collection).root(&*(**unrooted).reflector()) }
@ -588,7 +588,7 @@ impl<T: Reflectable> Root<T> {
impl<T: Reflectable> Deref for Root<T> {
type Target = T;
fn deref(&self) -> &T {
debug_assert!(task_state::get().is_script());
debug_assert!(thread_state::get().is_script());
unsafe { &**self.ptr.deref() }
}
}

20
components/script/dom/bindings/refcounted.rs
View file

@ -3,21 +3,21 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! A generic, safe mechanism by which DOM objects can be pinned and transferred
//! between tasks (or intra-task for asynchronous events). Akin to Gecko's
//! between threads (or intra-thread for asynchronous events). Akin to Gecko's
//! nsMainThreadPtrHandle, this uses thread-safe reference counting and ensures
//! that the actual SpiderMonkey GC integration occurs on the script task via
//! that the actual SpiderMonkey GC integration occurs on the script thread via
//! message passing. Ownership of a `Trusted<T>` object means the DOM object of
//! type T to which it points remains alive. Any other behaviour is undefined.
//! To guarantee the lifetime of a DOM object when performing asynchronous operations,
//! obtain a `Trusted<T>` from that object and pass it along with each operation.
//! A usable pointer to the original DOM object can be obtained on the script task
//! A usable pointer to the original DOM object can be obtained on the script thread
//! from a `Trusted<T>` via the `to_temporary` method.
//!
//! The implementation of Trusted<T> is as follows:
//! A hashtable resides in the script task, keyed on the pointer to the Rust DOM object.
//! A hashtable resides in the script thread, keyed on the pointer to the Rust DOM object.
//! The values in this hashtable are atomic reference counts. When a Trusted<T> object is
//! created or cloned, this count is increased. When a Trusted<T> is dropped, the count
//! decreases. If the count hits zero, a message is dispatched to the script task to remove
//! decreases. If the count hits zero, a message is dispatched to the script thread to remove
//! the entry from the hashmap if the count is still zero. The JS reflector for the DOM object
//! is rooted when a hashmap entry is first created, and unrooted when the hashmap entry
//! is removed.
@ -28,7 +28,7 @@ use dom::bindings::reflector::{Reflectable, Reflector};
use dom::bindings::trace::trace_reflector;
use js::jsapi::JSTracer;
use libc;
use script_task::{CommonScriptMsg, ScriptChan};
use script_thread::{CommonScriptMsg, ScriptChan};
use std::cell::RefCell;
use std::collections::hash_map::Entry::{Occupied, Vacant};
use std::collections::hash_map::HashMap;
@ -52,13 +52,13 @@ pub struct TrustedReference(*const libc::c_void);
unsafe impl Send for TrustedReference {}
/// A safe wrapper around a raw pointer to a DOM object that can be
/// shared among tasks for use in asynchronous operations. The underlying
/// shared among threads for use in asynchronous operations. The underlying
/// DOM object is guaranteed to live at least as long as the last outstanding
/// `Trusted<T>` instance.
#[allow_unrooted_interior]
pub struct Trusted<T: Reflectable> {
/// A pointer to the Rust DOM object of type T, but void to allow
/// sending `Trusted<T>` between tasks, regardless of T's sendability.
/// sending `Trusted<T>` between threads, regardless of T's sendability.
ptr: *const libc::c_void,
refcount: Arc<Mutex<usize>>,
script_chan: Box<ScriptChan + Send>,
@ -125,7 +125,7 @@ impl<T: Reflectable> Drop for Trusted<T> {
assert!(*refcount > 0);
*refcount -= 1;
if *refcount == 0 {
// It's possible this send will fail if the script task
// It's possible this send will fail if the script thread
// has already exited. There's not much we can do at this
// point though.
let msg = CommonScriptMsg::RefcountCleanup(TrustedReference(self.ptr));
@ -142,7 +142,7 @@ pub struct LiveDOMReferences {
}
impl LiveDOMReferences {
/// Set up the task-local data required for storing the outstanding DOM references.
/// Set up the thread-local data required for storing the outstanding DOM references.
pub fn initialize() {
LIVE_REFERENCES.with(|ref r| {
*r.borrow_mut() = Some(LiveDOMReferences {

8
components/script/dom/bindings/trace.rs
View file

@ -58,11 +58,11 @@ use msg::constellation_msg::ConstellationChan;
use msg::constellation_msg::{PipelineId, SubpageId, WindowSizeData};
use net_traits::Metadata;
use net_traits::image::base::Image;
use net_traits::image_cache_task::{ImageCacheChan, ImageCacheTask};
use net_traits::storage_task::StorageType;
use net_traits::image_cache_thread::{ImageCacheChan, ImageCacheThread};
use net_traits::storage_thread::StorageType;
use profile_traits::mem::ProfilerChan as MemProfilerChan;
use profile_traits::time::ProfilerChan as TimeProfilerChan;
use script_task::ScriptChan;
use script_thread::ScriptChan;
use script_traits::{LayoutMsg, ScriptMsg, TimerEventId, TimerSource, UntrustedNodeAddress};
use selectors::parser::PseudoElement;
use selectors::states::*;
@ -262,7 +262,7 @@ no_jsmanaged_fields!(Receiver<T>);
no_jsmanaged_fields!(Rect<T>);
no_jsmanaged_fields!(Size2D<T>);
no_jsmanaged_fields!(Arc<T>);
no_jsmanaged_fields!(Image, ImageCacheChan, ImageCacheTask);
no_jsmanaged_fields!(Image, ImageCacheChan, ImageCacheThread);
no_jsmanaged_fields!(Metadata);
no_jsmanaged_fields!(Atom, Namespace, QualName);
no_jsmanaged_fields!(Trusted<T: Reflectable>);