String DTO for C++ API #cpp

IString.h

template<typename T>
class IData : public IBase {
public:
	using Ptr = std::unique_ptr<typename IData<T>, SDeleter>;

public:
	virtual const T* Get(uint32_t& size) const noexcept = 0;
};

using IString = IData<uchar>;

StringContainer.h

class StringContainer : public IString {
public:
	StringContainer(const uchar* str)
	{
		assert(str != nullptr);

		if (str != nullptr)
		{
			m_str = str;
		}
	}

	StringContainer(const ustring& str) : m_str(str)
	{
		// Nop
	}

	StringContainer(ustring&& str) : m_str(std::move(str))
	{
		// Nop
	}

	void Free() override { delete this; }

	const uchar* Get(uint32_t& size) const noexcept
	{
		size = static_cast<uint32_t>(m_str.size());
		assert(size > 0);
		return (size > 0) ? &m_str.at(0) : nullptr;
	}

private:
	KOTL::ustring m_str;
};