llsdparam.cpp
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上传日期:2021-03-01
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- /**
- * @file llsdparam.cpp
- * @brief parameter block abstraction for creating complex objects and
- * parsing construction parameters from xml and LLSD
- *
- * $LicenseInfo:firstyear=2008&license=viewergpl$
- *
- * Copyright (c) 2008-2010, Linden Research, Inc.
- *
- * Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
- *
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
- *
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
- *
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
- * $/LicenseInfo$
- */
- #include "linden_common.h"
- // Project includes
- #include "llsdparam.h"
- //
- // LLParamSDParser
- //
- LLParamSDParser::LLParamSDParser()
- {
- using boost::bind;
- registerParserFuncs<S32>(bind(&LLParamSDParser::readTypedValue<S32>, this, _1, &LLSD::asInteger),
- bind(&LLParamSDParser::writeTypedValue<S32>, this, _1, _2));
- registerParserFuncs<U32>(bind(&LLParamSDParser::readTypedValue<U32>, this, _1, &LLSD::asInteger),
- bind(&LLParamSDParser::writeU32Param, this, _1, _2));
- registerParserFuncs<F32>(bind(&LLParamSDParser::readTypedValue<F32>, this, _1, &LLSD::asReal),
- bind(&LLParamSDParser::writeTypedValue<F32>, this, _1, _2));
- registerParserFuncs<F64>(bind(&LLParamSDParser::readTypedValue<F64>, this, _1, &LLSD::asReal),
- bind(&LLParamSDParser::writeTypedValue<F64>, this, _1, _2));
- registerParserFuncs<bool>(bind(&LLParamSDParser::readTypedValue<F32>, this, _1, &LLSD::asBoolean),
- bind(&LLParamSDParser::writeTypedValue<F32>, this, _1, _2));
- registerParserFuncs<std::string>(bind(&LLParamSDParser::readTypedValue<std::string>, this, _1, &LLSD::asString),
- bind(&LLParamSDParser::writeTypedValue<std::string>, this, _1, _2));
- registerParserFuncs<LLUUID>(bind(&LLParamSDParser::readTypedValue<LLUUID>, this, _1, &LLSD::asUUID),
- bind(&LLParamSDParser::writeTypedValue<LLUUID>, this, _1, _2));
- registerParserFuncs<LLDate>(bind(&LLParamSDParser::readTypedValue<LLDate>, this, _1, &LLSD::asDate),
- bind(&LLParamSDParser::writeTypedValue<LLDate>, this, _1, _2));
- registerParserFuncs<LLURI>(bind(&LLParamSDParser::readTypedValue<LLURI>, this, _1, &LLSD::asURI),
- bind(&LLParamSDParser::writeTypedValue<LLURI>, this, _1, _2));
- registerParserFuncs<LLSD>(bind(&LLParamSDParser::readSDParam, this, _1),
- bind(&LLParamSDParser::writeTypedValue<LLSD>, this, _1, _2));
- }
- bool LLParamSDParser::readSDParam(void* value_ptr)
- {
- if (!mCurReadSD) return false;
- *((LLSD*)value_ptr) = *mCurReadSD;
- return true;
- }
- // special case handling of U32 due to ambiguous LLSD::assign overload
- bool LLParamSDParser::writeU32Param(const void* val_ptr, const parser_t::name_stack_t& name_stack)
- {
- if (!mWriteSD) return false;
-
- LLSD* sd_to_write = getSDWriteNode(name_stack);
- if (!sd_to_write) return false;
- sd_to_write->assign((S32)*((const U32*)val_ptr));
- return true;
- }
- void LLParamSDParser::readSD(const LLSD& sd, LLInitParam::BaseBlock& block, bool silent)
- {
- mCurReadSD = NULL;
- mNameStack.clear();
- setParseSilently(silent);
- readSDValues(sd, block);
- }
- void LLParamSDParser::writeSD(LLSD& sd, const LLInitParam::BaseBlock& block)
- {
- mWriteSD = &sd;
- block.serializeBlock(*this);
- }
- void LLParamSDParser::readSDValues(const LLSD& sd, LLInitParam::BaseBlock& block)
- {
- if (sd.isMap())
- {
- for (LLSD::map_const_iterator it = sd.beginMap();
- it != sd.endMap();
- ++it)
- {
- mNameStack.push_back(make_pair(it->first, newParseGeneration()));
- readSDValues(it->second, block);
- mNameStack.pop_back();
- }
- }
- else if (sd.isArray())
- {
- for (LLSD::array_const_iterator it = sd.beginArray();
- it != sd.endArray();
- ++it)
- {
- mNameStack.back().second = newParseGeneration();
- readSDValues(*it, block);
- }
- }
- else
- {
- mCurReadSD = &sd;
- block.submitValue(mNameStack, *this);
- }
- }
- /*virtual*/ std::string LLParamSDParser::getCurrentElementName()
- {
- std::string full_name = "sd";
- for (name_stack_t::iterator it = mNameStack.begin();
- it != mNameStack.end();
- ++it)
- {
- full_name += llformat("[%s]", it->first.c_str());
- }
- return full_name;
- }
- LLSD* LLParamSDParser::getSDWriteNode(const parser_t::name_stack_t& name_stack)
- {
- //TODO: implement nested LLSD writing
- return mWriteSD;
- }