solidity/libsolutil/JSON.h

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/*
This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
// SPDX-License-Identifier: GPL-3.0
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/** @file JSON.h
* @date 2016
*
* JSON related helpers
*/
#pragma once
#include <json/json.h>
#include <string>
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namespace solidity::util
{
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/// Removes members with null value recursively from (@a _json).
Json::Value removeNullMembers(Json::Value _json);
/// JSON printing format.
struct JsonFormat
{
enum Format
{
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Compact, // No unnecessary whitespace (including new lines and indentation)
Pretty, // Nicely indented, with new lines
};
static constexpr uint32_t defaultIndent = 2;
bool operator==(JsonFormat const& _other) const noexcept { return (format == _other.format) && (indent == _other.indent); }
bool operator!=(JsonFormat const& _other) const noexcept { return !(*this == _other); }
Format format = Compact;
uint32_t indent = defaultIndent;
};
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/// Serialise the JSON object (@a _input) with indentation
std::string jsonPrettyPrint(Json::Value const& _input);
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/// Serialise the JSON object (@a _input) without indentation
std::string jsonCompactPrint(Json::Value const& _input);
/// Serialise the JSON object (@a _input) using specified format (@a _format)
std::string jsonPrint(Json::Value const& _input, JsonFormat const& _format);
/// Parse a JSON string (@a _input) with enabled strict-mode and writes resulting JSON object to (@a _json)
/// \param _input JSON input string
/// \param _json [out] resulting JSON object
/// \param _errs [out] Formatted error messages
/// \return \c true if the document was successfully parsed, \c false if an error occurred.
bool jsonParseStrict(std::string const& _input, Json::Value& _json, std::string* _errs = nullptr);
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}