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42 lines
1.0 KiB
C++
42 lines
1.0 KiB
C++
#ifndef OPENMW_COMPONENTS_SERIALIZATION_SIZEACCUMULATOR_H
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#define OPENMW_COMPONENTS_SERIALIZATION_SIZEACCUMULATOR_H
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#include <cstddef>
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#include <type_traits>
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namespace Serialization
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{
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class SizeAccumulator
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{
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public:
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SizeAccumulator() = default;
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SizeAccumulator(const SizeAccumulator&) = delete;
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std::size_t value() const { return mValue; }
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template <class Format, class T>
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void operator()(Format&& format, const T& value)
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{
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if constexpr (std::is_arithmetic_v<T> || std::is_enum_v<T>)
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mValue += sizeof(T);
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else
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format(*this, value);
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}
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template <class Format, class T>
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auto operator()(Format&& format, const T* data, std::size_t count)
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{
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if constexpr (std::is_arithmetic_v<T> || std::is_enum_v<T>)
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mValue += count * sizeof(T);
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else
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format(*this, data, count);
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}
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private:
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std::size_t mValue = 0;
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};
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}
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#endif
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