144 lines
4.0 KiB
C++
144 lines
4.0 KiB
C++
/**
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* @file llsdjson.cpp
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* @brief LLSD flexible data system
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*
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* $LicenseInfo:firstyear=2015&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2015, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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// Must turn on conditional declarations in header file so definitions end up
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// with proper linkage.
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#define LLSD_DEBUG_INFO
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#include "linden_common.h"
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#include "llsdjson.h"
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#include "llsdutil.h"
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#include "llerror.h"
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#include "../llmath/llmath.h"
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#include <boost/json/src.hpp>
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//=========================================================================
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LLSD LlsdFromJson(const boost::json::value& val)
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{
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LLSD result;
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switch (val.kind())
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{
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default:
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case boost::json::kind::null:
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break;
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case boost::json::kind::int64:
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case boost::json::kind::uint64:
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result = LLSD(val.to_number<int64_t>());
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break;
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case boost::json::kind::double_:
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result = LLSD(val.to_number<double>());
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break;
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case boost::json::kind::string:
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result = LLSD(boost::json::value_to<std::string>(val));
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break;
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case boost::json::kind::bool_:
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result = LLSD(val.as_bool());
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break;
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case boost::json::kind::array:
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{
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result = LLSD::emptyArray();
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const boost::json::array& array = val.as_array();
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size_t size = array.size();
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// allocate elements 0 .. (size() - 1) to avoid incremental allocation
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if (! array.empty())
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{
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result[size - 1] = LLSD();
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}
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for (size_t i = 0; i < size; i++)
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{
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result[i] = (LlsdFromJson(array[i]));
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}
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break;
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}
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case boost::json::kind::object:
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result = LLSD::emptyMap();
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for (const auto& element : val.as_object())
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{
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result[element.key()] = LlsdFromJson(element.value());
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}
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break;
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}
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return result;
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}
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//=========================================================================
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boost::json::value LlsdToJson(const LLSD &val)
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{
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boost::json::value result;
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switch (val.type())
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{
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case LLSD::TypeUndefined:
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result = nullptr;
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break;
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case LLSD::TypeBoolean:
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result = val.asBoolean();
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break;
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case LLSD::TypeInteger:
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result = val.asInteger();
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break;
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case LLSD::TypeReal:
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result = val.asReal();
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break;
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case LLSD::TypeURI:
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case LLSD::TypeDate:
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case LLSD::TypeUUID:
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case LLSD::TypeString:
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result = val.asString();
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break;
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case LLSD::TypeMap:
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{
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boost::json::object& obj = result.emplace_object();
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obj.reserve(val.size());
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for (const auto& llsd_dat : llsd::inMap(val))
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{
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obj[llsd_dat.first] = LlsdToJson(llsd_dat.second);
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}
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break;
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}
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case LLSD::TypeArray:
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{
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boost::json::array& json_array = result.emplace_array();
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json_array.reserve(val.size());
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for (const auto& llsd_dat : llsd::inArray(val))
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{
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json_array.push_back(LlsdToJson(llsd_dat));
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}
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break;
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}
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case LLSD::TypeBinary:
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default:
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LL_ERRS("LlsdToJson") << "Unsupported conversion to JSON from LLSD type ("
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<< val.type() << ")." << LL_ENDL;
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break;
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}
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return result;
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}
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