merge

1 files changed, 342 insertions, 0 deletions

diff --git a/indra/llcommon/llsdparam.cpp b/indra/llcommon/llsdparam.cpp
new file mode 100644
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+++ b/indra/llcommon/llsdparam.cpp
@@ -0,0 +1,342 @@
+/** 
+ * @file llsdparam.cpp
+ * @brief parameter block abstraction for creating complex objects and 
+ * parsing construction parameters from xml and LLSD
+ *
+ * $LicenseInfo:firstyear=2008&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+// Project includes
+#include "llsdparam.h"
+#include "llsdutil.h"
+
+static 	LLInitParam::Parser::parser_read_func_map_t sReadFuncs;
+static 	LLInitParam::Parser::parser_write_func_map_t sWriteFuncs;
+static 	LLInitParam::Parser::parser_inspect_func_map_t sInspectFuncs;
+static const LLSD NO_VALUE_MARKER;
+
+LLFastTimer::DeclareTimer FTM_SD_PARAM_ADAPTOR("LLSD to LLInitParam conversion");
+
+//
+// LLParamSDParser
+//
+LLParamSDParser::LLParamSDParser()
+: Parser(sReadFuncs, sWriteFuncs, sInspectFuncs)
+{
+	using boost::bind;
+
+	if (sReadFuncs.empty())
+	{
+		registerParserFuncs<LLInitParam::Flag>(readFlag, &LLParamSDParser::writeFlag);
+		registerParserFuncs<S32>(readS32, &LLParamSDParser::writeTypedValue<S32>);
+		registerParserFuncs<U32>(readU32, &LLParamSDParser::writeU32Param);
+		registerParserFuncs<F32>(readF32, &LLParamSDParser::writeTypedValue<F32>);
+		registerParserFuncs<F64>(readF64, &LLParamSDParser::writeTypedValue<F64>);
+		registerParserFuncs<bool>(readBool, &LLParamSDParser::writeTypedValue<bool>);
+		registerParserFuncs<std::string>(readString, &LLParamSDParser::writeTypedValue<std::string>);
+		registerParserFuncs<LLUUID>(readUUID, &LLParamSDParser::writeTypedValue<LLUUID>);
+		registerParserFuncs<LLDate>(readDate, &LLParamSDParser::writeTypedValue<LLDate>);
+		registerParserFuncs<LLURI>(readURI, &LLParamSDParser::writeTypedValue<LLURI>);
+		registerParserFuncs<LLSD>(readSD, &LLParamSDParser::writeTypedValue<LLSD>);
+	}
+}
+
+// special case handling of U32 due to ambiguous LLSD::assign overload
+bool LLParamSDParser::writeU32Param(LLParamSDParser::parser_t& parser, const void* val_ptr, parser_t::name_stack_t& name_stack)
+{
+	LLParamSDParser& sdparser = static_cast<LLParamSDParser&>(parser);
+	if (!sdparser.mWriteRootSD) return false;
+	
+	parser_t::name_stack_range_t range(name_stack.begin(), name_stack.end());
+	LLSD& sd_to_write = LLParamSDParserUtilities::getSDWriteNode(*sdparser.mWriteRootSD, range);
+	sd_to_write.assign((S32)*((const U32*)val_ptr));
+
+	return true;
+}
+
+bool LLParamSDParser::writeFlag(LLParamSDParser::parser_t& parser, const void* val_ptr, parser_t::name_stack_t& name_stack)
+{
+	LLParamSDParser& sdparser = static_cast<LLParamSDParser&>(parser);
+	if (!sdparser.mWriteRootSD) return false;
+
+	parser_t::name_stack_range_t range(name_stack.begin(), name_stack.end());
+	LLParamSDParserUtilities::getSDWriteNode(*sdparser.mWriteRootSD, range);
+
+	return true;
+}
+
+void LLParamSDParser::submit(LLInitParam::BaseBlock& block, const LLSD& sd, LLInitParam::Parser::name_stack_t& name_stack)
+{
+	mCurReadSD = &sd;
+	block.submitValue(name_stack, *this);
+}
+
+void LLParamSDParser::readSD(const LLSD& sd, LLInitParam::BaseBlock& block, bool silent)
+{
+	mCurReadSD = NULL;
+	mNameStack.clear();
+	setParseSilently(silent);
+
+	LLParamSDParserUtilities::readSDValues(boost::bind(&LLParamSDParser::submit, this, boost::ref(block), _1, _2), sd, mNameStack);
+	//readSDValues(sd, block);
+}
+
+void LLParamSDParser::writeSD(LLSD& sd, const LLInitParam::BaseBlock& block)
+{
+	mNameStack.clear();
+	mWriteRootSD = &sd;
+
+	name_stack_t name_stack;
+	block.serializeBlock(*this, name_stack);
+}
+
+/*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;
+}
+
+
+bool LLParamSDParser::readFlag(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+	return self.mCurReadSD == &NO_VALUE_MARKER;
+}
+
+
+bool LLParamSDParser::readS32(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+    *((S32*)val_ptr) = self.mCurReadSD->asInteger();
+    return true;
+}
+
+bool LLParamSDParser::readU32(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+    *((U32*)val_ptr) = self.mCurReadSD->asInteger();
+    return true;
+}
+
+bool LLParamSDParser::readF32(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+    *((F32*)val_ptr) = self.mCurReadSD->asReal();
+    return true;
+}
+
+bool LLParamSDParser::readF64(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+    *((F64*)val_ptr) = self.mCurReadSD->asReal();
+    return true;
+}
+
+bool LLParamSDParser::readBool(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+    *((bool*)val_ptr) = self.mCurReadSD->asBoolean();
+    return true;
+}
+
+bool LLParamSDParser::readString(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+	*((std::string*)val_ptr) = self.mCurReadSD->asString();
+    return true;
+}
+
+bool LLParamSDParser::readUUID(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+	*((LLUUID*)val_ptr) = self.mCurReadSD->asUUID();
+    return true;
+}
+
+bool LLParamSDParser::readDate(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+	*((LLDate*)val_ptr) = self.mCurReadSD->asDate();
+    return true;
+}
+
+bool LLParamSDParser::readURI(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+	*((LLURI*)val_ptr) = self.mCurReadSD->asURI();
+    return true;
+}
+
+bool LLParamSDParser::readSD(Parser& parser, void* val_ptr)
+{
+	LLParamSDParser& self = static_cast<LLParamSDParser&>(parser);
+
+	*((LLSD*)val_ptr) = *self.mCurReadSD;
+    return true;
+}
+
+// static
+LLSD& LLParamSDParserUtilities::getSDWriteNode(LLSD& input, LLInitParam::Parser::name_stack_range_t& name_stack_range)
+{
+	LLSD* sd_to_write = &input;
+	
+	for (LLInitParam::Parser::name_stack_t::iterator it = name_stack_range.first;
+		it != name_stack_range.second;
+		++it)
+	{
+		bool new_traversal = it->second;
+
+		LLSD* child_sd = it->first.empty() ? sd_to_write : &(*sd_to_write)[it->first];
+
+		if (child_sd->isArray())
+		{
+			if (new_traversal)
+			{
+				// write to new element at end
+				sd_to_write = &(*child_sd)[child_sd->size()];
+			}
+			else
+			{
+				// write to last of existing elements, or first element if empty
+				sd_to_write = &(*child_sd)[llmax(0, child_sd->size() - 1)];
+			}
+		}
+		else
+		{
+			if (new_traversal 
+				&& child_sd->isDefined() 
+				&& !child_sd->isArray())
+			{
+				// copy child contents into first element of an array
+				LLSD new_array = LLSD::emptyArray();
+				new_array.append(*child_sd);
+				// assign array to slot that previously held the single value
+				*child_sd = new_array;
+				// return next element in that array
+				sd_to_write = &((*child_sd)[1]);
+			}
+			else
+			{
+				sd_to_write = child_sd;
+			}
+		}
+		it->second = false;
+	}
+	
+	return *sd_to_write;
+}
+
+//static
+void LLParamSDParserUtilities::readSDValues(read_sd_cb_t cb, const LLSD& sd, LLInitParam::Parser::name_stack_t& stack)
+{
+	if (sd.isMap())
+	{
+		for (LLSD::map_const_iterator it = sd.beginMap();
+			it != sd.endMap();
+			++it)
+		{
+			stack.push_back(make_pair(it->first, true));
+			readSDValues(cb, it->second, stack);
+			stack.pop_back();
+		}
+	}
+	else if (sd.isArray())
+	{
+		for (LLSD::array_const_iterator it = sd.beginArray();
+			it != sd.endArray();
+			++it)
+		{
+			stack.back().second = true;
+			readSDValues(cb, *it, stack);
+		}
+	}
+	else if (sd.isUndefined())
+	{
+		if (!cb.empty())
+		{
+			cb(NO_VALUE_MARKER, stack);
+		}
+	}
+	else
+	{
+		if (!cb.empty())
+		{
+			cb(sd, stack);
+		}
+	}
+}
+
+//static
+void LLParamSDParserUtilities::readSDValues(read_sd_cb_t cb, const LLSD& sd)
+{
+	LLInitParam::Parser::name_stack_t stack = LLInitParam::Parser::name_stack_t();
+	readSDValues(cb, sd, stack);
+}
+namespace LLInitParam
+{
+	// LLSD specialization
+	// block param interface
+	bool ParamValue<LLSD, TypeValues<LLSD>, false>::deserializeBlock(Parser& p, Parser::name_stack_range_t name_stack, bool new_name)
+	{
+		LLSD& sd = LLParamSDParserUtilities::getSDWriteNode(mValue, name_stack);
+
+		LLSD::String string;
+
+		if (p.readValue<LLSD::String>(string))
+		{
+			sd = string;
+			return true;
+		}
+		return false;
+	}
+
+	//static
+	void ParamValue<LLSD, TypeValues<LLSD>, false>::serializeElement(Parser& p, const LLSD& sd, Parser::name_stack_t& name_stack)
+	{
+		p.writeValue<LLSD::String>(sd.asString(), name_stack);
+	}
+
+	void ParamValue<LLSD, TypeValues<LLSD>, false>::serializeBlock(Parser& p, Parser::name_stack_t& name_stack, const BaseBlock* diff_block) const
+	{
+		// read from LLSD value and serialize out to parser (which could be LLSD, XUI, etc)
+		Parser::name_stack_t stack;
+		LLParamSDParserUtilities::readSDValues(boost::bind(&serializeElement, boost::ref(p), _1, _2), mValue, stack);
+	}
+}