
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/*
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* Copyright (c) 2022-2023, 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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#pragma once
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#include <AK/HashMap.h>
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#include <AK/String.h>
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#include <AK/Variant.h>
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#include <AK/Vector.h>
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#include <LibJS/Forward.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/Fetch/Infrastructure/HTTP/Headers.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::Fetch {
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using HeadersInit = Variant<Vector<Vector<String>>, OrderedHashMap<String, String>>;
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// https://fetch.spec.whatwg.org/#headers-class
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class Headers final : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(Headers, Bindings::PlatformObject);
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JS_DECLARE_ALLOCATOR(Headers);
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public:
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enum class Guard {
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Immutable,
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Request,
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RequestNoCORS,
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Response,
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None,
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};
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static WebIDL::ExceptionOr<JS::NonnullGCPtr<Headers>> construct_impl(JS::Realm& realm, Optional<HeadersInit> const& init);
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virtual ~Headers() override;
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[[nodiscard]] JS::NonnullGCPtr<Infrastructure::HeaderList> header_list() const { return m_header_list; }
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void set_header_list(JS::NonnullGCPtr<Infrastructure::HeaderList> header_list) { m_header_list = header_list; }
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[[nodiscard]] Guard guard() const { return m_guard; }
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void set_guard(Guard guard) { m_guard = guard; }
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WebIDL::ExceptionOr<void> fill(HeadersInit const&);
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WebIDL::ExceptionOr<void> append(Infrastructure::Header);
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// JS API functions
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WebIDL::ExceptionOr<void> append(String const& name, String const& value);
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WebIDL::ExceptionOr<void> delete_(String const& name);
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WebIDL::ExceptionOr<Optional<String>> get(String const& name);
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WebIDL::ExceptionOr<Vector<String>> get_set_cookie();
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WebIDL::ExceptionOr<bool> has(String const& name);
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WebIDL::ExceptionOr<void> set(String const& name, String const& value);
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using ForEachCallback = Function<JS::ThrowCompletionOr<void>(String const&, String const&)>;
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JS::ThrowCompletionOr<void> for_each(ForEachCallback);
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private:
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friend class HeadersIterator;
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Headers(JS::Realm&, JS::NonnullGCPtr<Infrastructure::HeaderList>);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(JS::Cell::Visitor&) override;
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WebIDL::ExceptionOr<bool> validate(Infrastructure::Header const&) const;
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void remove_privileged_no_cors_request_headers();
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// https://fetch.spec.whatwg.org/#concept-headers-header-list
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// A Headers object has an associated header list (a header list), which is initially empty.
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JS::NonnullGCPtr<Infrastructure::HeaderList> m_header_list;
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// https://fetch.spec.whatwg.org/#concept-headers-guard
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// A Headers object also has an associated guard, which is a headers guard. A headers guard is "immutable", "request", "request-no-cors", "response" or "none".
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Guard m_guard { Guard::None };
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};
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}
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