mirror of
https://github.com/servo/servo.git
synced 2025-06-06 16:45:39 +00:00
5d3cbc67ee
This reduces the boilerplate necessary for adding new serializable/transferable interfaces to the structured cloning code. We always need to root the deserialized objects when performing a read operation, but we don't actually need the concrete object types in the majority of cases. By storing a list of rooted JS object values, we can push generic reflector objects into it, and extract the types we need (MessagePort) at the very end. Testing: Existing WPT structured cloning tests will provide coverage. Signed-off-by: Josh Matthews <josh@joshmatthews.net>
38 lines
1.1 KiB
Rust
38 lines
1.1 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
//! Trait representing the concept of [transferable objects]
|
|
//! (<https://html.spec.whatwg.org/multipage/#transferable-objects>).
|
|
|
|
use std::collections::HashMap;
|
|
use std::hash::Hash;
|
|
|
|
use base::id::NamespaceIndex;
|
|
|
|
use crate::dom::bindings::reflector::DomObject;
|
|
use crate::dom::bindings::root::DomRoot;
|
|
use crate::dom::bindings::structuredclone::StructuredData;
|
|
use crate::dom::globalscope::GlobalScope;
|
|
pub(crate) trait Transferable: DomObject
|
|
where
|
|
Self: Sized,
|
|
{
|
|
type Index: Copy + Eq + Hash;
|
|
type Data;
|
|
|
|
fn can_transfer(&self) -> bool {
|
|
true
|
|
}
|
|
|
|
fn transfer(&self) -> Result<(NamespaceIndex<Self::Index>, Self::Data), ()>;
|
|
fn transfer_receive(
|
|
owner: &GlobalScope,
|
|
id: NamespaceIndex<Self::Index>,
|
|
serialized: Self::Data,
|
|
) -> Result<DomRoot<Self>, ()>;
|
|
|
|
fn serialized_storage<'a>(
|
|
data: StructuredData<'a, '_>,
|
|
) -> &'a mut Option<HashMap<NamespaceIndex<Self::Index>, Self::Data>>;
|
|
}
|