mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-12 01:46:46 +02:00
6751d348a7
Report outline storage retained by bytecode executables, table objects, object property iterator cache data, and shared function instance data. This includes bytecode vectors, cache arrays, source maps, class blueprint elements, and binding metadata.
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
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* Copyright (c) 2021, Gunnar Beutner <gbeutner@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/DistinctNumeric.h>
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#include <AK/Utf16String.h>
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#include <AK/Vector.h>
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#include <LibJS/Runtime/ExternalMemory.h>
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namespace JS::Bytecode {
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struct StringTableIndex {
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static constexpr u32 invalid = 0xffffffffu;
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bool is_valid() const { return value != invalid; }
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u32 value { 0 };
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};
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class StringTable {
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AK_MAKE_NONMOVABLE(StringTable);
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AK_MAKE_NONCOPYABLE(StringTable);
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public:
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StringTable() = default;
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StringTableIndex insert(Utf16String);
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Utf16String const& get(StringTableIndex) const;
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void dump() const;
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bool is_empty() const { return m_strings.is_empty(); }
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size_t size() const { return m_strings.size(); }
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size_t external_memory_size() const
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{
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size_t size = vector_external_memory_size(m_strings);
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for (auto const& string : m_strings)
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size = saturating_add_external_memory_size(size, utf16_string_external_memory_size(string));
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return size;
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}
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private:
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Vector<Utf16String> m_strings;
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};
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}
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namespace AK {
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template<>
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struct SentinelOptionalTraits<JS::Bytecode::StringTableIndex> {
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static constexpr JS::Bytecode::StringTableIndex sentinel_value() { return { JS::Bytecode::StringTableIndex::invalid }; }
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static constexpr bool is_sentinel(JS::Bytecode::StringTableIndex const& value) { return !value.is_valid(); }
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};
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template<>
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class Optional<JS::Bytecode::StringTableIndex> : public SentinelOptional<JS::Bytecode::StringTableIndex> {
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public:
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using SentinelOptional::SentinelOptional;
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};
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}
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