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60 lines
1.2 KiB
C++
60 lines
1.2 KiB
C++
#include "json.hpp"
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#include <cstring>
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#include <string>
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#include <vector>
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namespace llarp
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{
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namespace json
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{
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struct NlohmannJSONParser : public IParser
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{
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NlohmannJSONParser(size_t contentSize) : m_Buf(contentSize + 1), m_Offset(0)
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{
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assert(contentSize != 0);
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}
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std::vector<char> m_Buf;
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size_t m_Offset;
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bool
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FeedData(const char* buf, size_t sz) override
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{
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if (sz == 0)
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return true;
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if (m_Offset + sz > m_Buf.size() - 1)
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return false;
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std::copy_n(buf, sz, m_Buf.data() + m_Offset);
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m_Offset += sz;
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m_Buf[m_Offset] = 0;
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return true;
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}
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Result
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Parse(nlohmann::json& obj) const override
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{
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if (m_Offset < m_Buf.size() - 1)
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return eNeedData;
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try
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{
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obj = nlohmann::json::parse(m_Buf.data());
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return eDone;
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}
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catch (const nlohmann::json::exception&)
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{
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return eParseError;
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}
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}
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};
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IParser*
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MakeParser(size_t contentSize)
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{
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return new NlohmannJSONParser(contentSize);
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}
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} // namespace json
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} // namespace llarp
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