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Refactor common boilerplate out of serialize/transfer implementations (#35831)

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* script: Create infrastructure for reducing hand-written serializable/transferrable implementations.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Clone all serializable DOM interfaces.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Deserialize all serializable DOM interfaces.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Serialize all serializable DOM interfaces.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Transfer-receive all transferable DOM interfaces.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Transfer all transferable DOM interfaces.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Formatting.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Extract boilerplate from serialize/deserialize implementations.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Extract boilerplate from transfer-receive.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Extract boilerplate from transfer operation.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Tidy fixes.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* script: Check transferability of all DOM interfaces.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Clippy fixes.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Clippy fixes.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Remove unnecessary duplicate crate.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

* Formatting.

Signed-off-by: Josh Matthews <josh@joshmatthews.net>

---------

Signed-off-by: Josh Matthews <josh@joshmatthews.net>
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Josh Matthews 2025-03-15 09:58:56 -04:00 • committed by GitHub
parent 21ecfdd088
commit d8fc1d8bb8
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9 changed files with 548 additions and 237 deletions
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43
components/script/dom/bindings/transferable.rs
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@ -5,18 +5,45 @@
//! Trait representing the concept of [transferable objects]
//! (<https://html.spec.whatwg.org/multipage/#transferable-objects>).
use js::jsapi::MutableHandleObject;
use std::collections::HashMap;
use std::num::NonZeroU32;
use base::id::PipelineNamespaceId;
use crate::dom::bindings::reflector::DomObject;
use crate::dom::bindings::structuredclone::{StructuredDataReader, StructuredDataWriter};
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::structuredclone::{StructuredData, StructuredDataReader};
use crate::dom::globalscope::GlobalScope;
pub(crate) trait Transferable: DomObject {
fn transfer(&self, sc_writer: &mut StructuredDataWriter) -> Result<u64, ()>;
pub(crate) trait IdFromComponents
where
Self: Sized,
{
fn from(namespace_id: PipelineNamespaceId, index: NonZeroU32) -> Self;
}
pub(crate) trait ExtractComponents {
fn components(&self) -> (PipelineNamespaceId, NonZeroU32);
}
pub(crate) trait Transferable: DomObject
where
Self: Sized,
{
type Id: Eq + std::hash::Hash + Copy + IdFromComponents + ExtractComponents;
type Data;
fn can_transfer(&self) -> bool {
true
}
fn transfer(&self) -> Result<(Self::Id, Self::Data), ()>;
fn transfer_receive(
owner: &GlobalScope,
sc_reader: &mut StructuredDataReader,
extra_data: u64,
return_object: MutableHandleObject,
) -> Result<(), ()>;
id: Self::Id,
serialized: Self::Data,
) -> Result<DomRoot<Self>, ()>;
fn serialized_storage(data: StructuredData<'_>) -> &mut Option<HashMap<Self::Id, Self::Data>>;
fn deserialized_storage(reader: &mut StructuredDataReader) -> &mut Option<Vec<DomRoot<Self>>>;
}