rippled/include/xrpl/json/Output.h

#pragma once

#include <functional>
#include <string>
#include <string_view>

namespace Json {

class Value;

using Output = std::function<void(std::string_view)>;

inline Output
stringOutput(std::string& s)
{
    return [&](std::string_view b) { s.append(b.data(), b.size()); };
}

/** Writes a minimal representation of a Json value to an Output in O(n) time.

    Data is streamed right to the output, so only a marginal amount of memory is
    used.  This can be very important for a very large Json::Value.
 */
void
outputJson(Json::Value const&, Output const&);

/** Return the minimal string representation of a Json::Value in O(n) time.

    This requires a memory allocation for the full size of the output.
    If possible, use outputJson().
 */
std::string
jsonAsString(Json::Value const&);

}  // namespace Json