node/src/json_parser.h at main · fetchapi/node · GitHub

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#ifndef SRC_JSON_PARSER_H_

#define SRC_JSON_PARSER_H_

#if defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#include <memory>

#include <optional>

#include <string>

#include "util.h"

#include "v8.h"

namespace node {

// This is intended to be used to get some top-level fields out of a JSON

// without having to spin up a full Node.js environment that unnecessarily

// complicates things.

class JSONParser {

public:

JSONParser();

~JSONParser() = default;

bool Parse(const std::string& content);

std::optional<std::string> GetTopLevelStringField(std::string_view field);

std::optional<bool> GetTopLevelBoolField(std::string_view field);

private:

// We might want a lighter-weight JSON parser for this use case. But for now

// using V8 is good enough.

RAIIIsolate isolate_;

v8::Global<v8::Context> context_;

v8::Global<v8::Object> content_;

bool parsed_ = false;

};

} // namespace node

#endif // defined(NODE_WANT_INTERNALS) && NODE_WANT_INTERNALS

#endif // SRC_JSON_PARSER_H_

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