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177f6d6502
FxHash is faster than FnvHash and SipHash for simple types up to at least 64 bytes. The cryptographic guarantees are not needed for any types changed here because they are simple ids. This changes the types in script and net crates. In a future PR we will change the remaining Fnv to be also Fx unless there is a reason to keep them as Fnv. Testing: Should not change functionality but unit test and wpt will find it. Signed-off-by: Narfinger <Narfinger@users.noreply.github.com>
46 lines
1.5 KiB
Rust
46 lines
1.5 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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 std::hash::Hash;
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use base::id::NamespaceIndex;
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use rustc_hash::FxHashMap;
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use script_bindings::structuredclone::MarkedAsTransferableInIdl;
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use crate::dom::bindings::error::Fallible;
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use crate::dom::bindings::reflector::DomObject;
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::bindings::structuredclone::StructuredData;
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use crate::dom::globalscope::GlobalScope;
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pub(crate) trait Transferable: DomObject + MarkedAsTransferableInIdl
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where
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Self: Sized,
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{
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type Index: Copy + Eq + Hash;
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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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/// <https://html.spec.whatwg.org/multipage/#transfer-steps>
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fn transfer(&self) -> Fallible<(NamespaceIndex<Self::Index>, Self::Data)>;
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/// <https://html.spec.whatwg.org/multipage/#transfer-receiving-steps>
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fn transfer_receive(
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owner: &GlobalScope,
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id: NamespaceIndex<Self::Index>,
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serialized: Self::Data,
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) -> Result<DomRoot<Self>, ()>;
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fn serialized_storage<'a>(
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data: StructuredData<'a, '_>,
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) -> &'a mut Option<FxHashMap<NamespaceIndex<Self::Index>, Self::Data>>;
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}
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pub(crate) fn assert_transferable<T: Transferable>() {}
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