mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-06-08 05:27:14 +09:00
a6dfc74e93
Before this change, we were going through the chain of base classes for each IDL interface object and having them set the prototype to their prototype. Instead of doing that, reorder things so that we set the right prototype immediately in Foo::initialize(), and then don't bother in all the base class overrides. This knocks off a ~1% profile item on Speedometer 3.
86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
/*
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* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/Iterator.h>
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#include <LibWeb/Bindings/HeadersIteratorPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Fetch/HeadersIterator.h>
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#include <LibWeb/Infra/Strings.h>
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namespace Web::Bindings {
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template<>
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void Intrinsics::create_web_prototype_and_constructor<HeadersIteratorPrototype>(JS::Realm& realm)
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{
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auto prototype = realm.create<HeadersIteratorPrototype>(realm);
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m_prototypes.set("HeadersIterator"_fly_string, prototype);
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}
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}
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namespace Web::Fetch {
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GC_DEFINE_ALLOCATOR(HeadersIterator);
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GC::Ref<HeadersIterator> HeadersIterator::create(Headers const& headers, JS::Object::PropertyKind iteration_kind)
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{
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return headers.realm().create<HeadersIterator>(headers, iteration_kind);
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}
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HeadersIterator::HeadersIterator(Headers const& headers, JS::Object::PropertyKind iteration_kind)
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: PlatformObject(headers.realm())
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, m_headers(headers)
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, m_iteration_kind(iteration_kind)
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{
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}
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HeadersIterator::~HeadersIterator() = default;
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void HeadersIterator::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(HeadersIterator);
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Base::initialize(realm);
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}
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void HeadersIterator::visit_edges(JS::Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_headers);
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}
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// https://webidl.spec.whatwg.org/#es-iterable, Step 2
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GC::Ref<JS::Object> HeadersIterator::next()
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{
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// The value pairs to iterate over are the return value of running sort and combine with this’s header list.
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auto value_pairs_to_iterate_over = [&]() {
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return m_headers->m_header_list->sort_and_combine();
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};
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auto pairs = value_pairs_to_iterate_over();
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if (m_index >= pairs.size())
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return create_iterator_result_object(vm(), JS::js_undefined(), true);
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auto const& pair = pairs[m_index++];
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auto pair_name = Infra::isomorphic_decode(pair.name);
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auto pair_value = Infra::isomorphic_decode(pair.value);
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switch (m_iteration_kind) {
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case JS::Object::PropertyKind::Key:
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return create_iterator_result_object(vm(), JS::PrimitiveString::create(vm(), pair_name), false);
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case JS::Object::PropertyKind::Value:
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return create_iterator_result_object(vm(), JS::PrimitiveString::create(vm(), pair_value), false);
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case JS::Object::PropertyKind::KeyAndValue: {
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auto array = JS::Array::create_from(realm(), { JS::PrimitiveString::create(vm(), pair_name), JS::PrimitiveString::create(vm(), pair_value) });
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return create_iterator_result_object(vm(), array, false);
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}
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default:
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VERIFY_NOT_REACHED();
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}
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}
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}
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