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Refactor common boilerplate out of serialize/transfer implementations (#35831)
* 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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9 changed files with 548 additions and 237 deletions
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@ -5,18 +5,45 @@
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//! Trait representing the concept of [transferable objects]
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//! (<https://html.spec.whatwg.org/multipage/#transferable-objects>).
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use js::jsapi::MutableHandleObject;
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use std::collections::HashMap;
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use std::num::NonZeroU32;
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use base::id::PipelineNamespaceId;
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use crate::dom::bindings::reflector::DomObject;
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use crate::dom::bindings::structuredclone::{StructuredDataReader, StructuredDataWriter};
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::bindings::structuredclone::{StructuredData, StructuredDataReader};
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use crate::dom::globalscope::GlobalScope;
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pub(crate) trait Transferable: DomObject {
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fn transfer(&self, sc_writer: &mut StructuredDataWriter) -> Result<u64, ()>;
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pub(crate) trait IdFromComponents
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where
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Self: Sized,
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{
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fn from(namespace_id: PipelineNamespaceId, index: NonZeroU32) -> Self;
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}
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pub(crate) trait ExtractComponents {
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fn components(&self) -> (PipelineNamespaceId, NonZeroU32);
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}
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pub(crate) trait Transferable: DomObject
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where
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Self: Sized,
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{
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type Id: Eq + std::hash::Hash + Copy + IdFromComponents + ExtractComponents;
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type Data;
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fn can_transfer(&self) -> bool {
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true
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}
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fn transfer(&self) -> Result<(Self::Id, Self::Data), ()>;
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fn transfer_receive(
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owner: &GlobalScope,
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sc_reader: &mut StructuredDataReader,
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extra_data: u64,
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return_object: MutableHandleObject,
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) -> Result<(), ()>;
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id: Self::Id,
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serialized: Self::Data,
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) -> Result<DomRoot<Self>, ()>;
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fn serialized_storage(data: StructuredData<'_>) -> &mut Option<HashMap<Self::Id, Self::Data>>;
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fn deserialized_storage(reader: &mut StructuredDataReader) -> &mut Option<Vec<DomRoot<Self>>>;
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}
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