mirror of
https://github.com/RGBCube/serenity
synced 2025-05-20 16:35:07 +00:00
bfd354492e
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. :^)
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Max Wipfli <mail@maxwipfli.ch>
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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/Error.h>
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#include <AK/RefPtr.h>
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#include <AK/String.h>
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#include <LibJS/Heap/Heap.h>
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#include <LibWeb/DOM/Node.h>
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#include <LibWeb/Forward.h>
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namespace Web::DOM {
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class Position final : public JS::Cell {
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JS_CELL(Position, JS::Cell);
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JS_DECLARE_ALLOCATOR(Position);
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public:
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[[nodiscard]] static JS::NonnullGCPtr<Position> create(JS::Realm& realm, JS::NonnullGCPtr<Node> node, unsigned offset)
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{
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return realm.heap().allocate<Position>(realm, node, offset);
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}
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JS::GCPtr<Node> node() { return m_node; }
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JS::GCPtr<Node const> node() const { return m_node; }
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unsigned offset() const { return m_offset; }
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bool offset_is_at_end_of_node() const;
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void set_offset(unsigned value) { m_offset = value; }
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bool increment_offset();
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bool decrement_offset();
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bool equals(JS::NonnullGCPtr<Position> other) const
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{
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return m_node.ptr() == other->m_node.ptr() && m_offset == other->m_offset;
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}
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ErrorOr<String> to_string() const;
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private:
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Position(JS::GCPtr<Node>, unsigned offset);
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JS::GCPtr<Node> m_node;
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unsigned m_offset { 0 };
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};
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}
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template<>
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struct AK::Formatter<Web::DOM::Position> : Formatter<StringView> {
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ErrorOr<void> format(FormatBuilder& builder, Web::DOM::Position const& value)
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{
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return Formatter<StringView>::format(builder, TRY(value.to_string()));
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}
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};
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