Struct script::microtask::MicrotaskQueue

pub struct MicrotaskQueue {
    microtask_queue: DomRefCell<Vec<Microtask>>,
    performing_a_microtask_checkpoint: Cell<bool>,
}

A collection of microtasks in FIFO order.

Fields

microtask_queue: DomRefCell<Vec<Microtask>>

The list of enqueued microtasks that will be invoked at the next microtask checkpoint.

performing_a_microtask_checkpoint: Cell<bool>

https://html.spec.whatwg.org/multipage/#performing-a-microtask-checkpoint

Implementations

impl MicrotaskQueue

pub fn enqueue(&self, job: Microtask, cx: JSContext)

Add a new microtask to this queue. It will be invoked as part of the next microtask checkpoint.

pub fn checkpoint<F>( &self, cx: JSContext, target_provider: F, globalscopes: Vec<Root<Dom<GlobalScope>>>, can_gc: CanGc, )

where F: Fn(PipelineId) -> Option<Root<Dom<GlobalScope>>>,

https://html.spec.whatwg.org/multipage/#perform-a-microtask-checkpoint Perform a microtask checkpoint, executing all queued microtasks until the queue is empty.

pub fn empty(&self) -> bool

pub fn clear(&self)

Trait Implementations

impl Default for MicrotaskQueue

fn default() -> MicrotaskQueue

Returns the “default value” for a type.

impl MallocSizeOf for MicrotaskQueue

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl Traceable for MicrotaskQueue

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.