ladybird/Userland/Libraries/LibWeb/Fetch/Headers.h
Andreas Kling bfd354492e LibWeb: Put most LibWeb GC objects in type-specific heap blocks
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. :^)
2023-11-19 22:00:48 +01:00

82 lines
2.8 KiB
C++

/*
* Copyright (c) 2022-2023, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/HashMap.h>
#include <AK/String.h>
#include <AK/Variant.h>
#include <AK/Vector.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/GCPtr.h>
#include <LibWeb/Bindings/PlatformObject.h>
#include <LibWeb/Fetch/Infrastructure/HTTP/Headers.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
namespace Web::Fetch {
using HeadersInit = Variant<Vector<Vector<String>>, OrderedHashMap<String, String>>;
// https://fetch.spec.whatwg.org/#headers-class
class Headers final : public Bindings::PlatformObject {
WEB_PLATFORM_OBJECT(Headers, Bindings::PlatformObject);
JS_DECLARE_ALLOCATOR(Headers);
public:
enum class Guard {
Immutable,
Request,
RequestNoCORS,
Response,
None,
};
static WebIDL::ExceptionOr<JS::NonnullGCPtr<Headers>> construct_impl(JS::Realm& realm, Optional<HeadersInit> const& init);
virtual ~Headers() override;
[[nodiscard]] JS::NonnullGCPtr<Infrastructure::HeaderList> header_list() const { return m_header_list; }
void set_header_list(JS::NonnullGCPtr<Infrastructure::HeaderList> header_list) { m_header_list = header_list; }
[[nodiscard]] Guard guard() const { return m_guard; }
void set_guard(Guard guard) { m_guard = guard; }
WebIDL::ExceptionOr<void> fill(HeadersInit const&);
WebIDL::ExceptionOr<void> append(Infrastructure::Header);
// JS API functions
WebIDL::ExceptionOr<void> append(String const& name, String const& value);
WebIDL::ExceptionOr<void> delete_(String const& name);
WebIDL::ExceptionOr<Optional<String>> get(String const& name);
WebIDL::ExceptionOr<Vector<String>> get_set_cookie();
WebIDL::ExceptionOr<bool> has(String const& name);
WebIDL::ExceptionOr<void> set(String const& name, String const& value);
using ForEachCallback = Function<JS::ThrowCompletionOr<void>(String const&, String const&)>;
JS::ThrowCompletionOr<void> for_each(ForEachCallback);
private:
friend class HeadersIterator;
Headers(JS::Realm&, JS::NonnullGCPtr<Infrastructure::HeaderList>);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(JS::Cell::Visitor&) override;
WebIDL::ExceptionOr<bool> validate(Infrastructure::Header const&) const;
void remove_privileged_no_cors_request_headers();
// https://fetch.spec.whatwg.org/#concept-headers-header-list
// A Headers object has an associated header list (a header list), which is initially empty.
JS::NonnullGCPtr<Infrastructure::HeaderList> m_header_list;
// https://fetch.spec.whatwg.org/#concept-headers-guard
// 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".
Guard m_guard { Guard::None };
};
}