added compound LLSD parsing to param blocks

reviewed by Leslie

6 files changed, 201 insertions, 199 deletions

diff --git a/indra/llui/llnotifications.cpp b/indra/llui/llnotifications.cpp
index ffe5908a9d..8f7025a9a6 100644
--- a/indra/llui/llnotifications.cpp
+++ b/indra/llui/llnotifications.cpp
@@ -46,6 +46,7 @@
 
 #include <algorithm>
 #include <boost/regex.hpp>
+#include <boost/foreach.hpp>
 
 
 const std::string NOTIFICATION_PERSIST_VERSION = "0.93";
@@ -416,23 +417,17 @@ LLNotificationTemplate::LLNotificationTemplate(const LLNotificationTemplate::Par
 		mSoundEffect = LLUUID(LLUI::sSettingGroups["config"]->getString(p.sound));
 	}
 
-	for(LLInitParam::ParamIterator<LLNotificationTemplate::UniquenessContext>::const_iterator it = p.unique.contexts.begin(),
-			end_it = p.unique.contexts.end();
-		it != end_it;
-		++it)
+	BOOST_FOREACH(const LLNotificationTemplate::UniquenessContext& context, p.unique.contexts)
 	{
-		mUniqueContext.push_back(it->value);
+		mUniqueContext.push_back(context.value);
 	}
 	
 	lldebugs << "notification \"" << mName << "\": tag count is " << p.tags.size() << llendl;
 	
-	for(LLInitParam::ParamIterator<LLNotificationTemplate::Tag>::const_iterator it = p.tags.begin(),
-			end_it = p.tags.end();
-		it != end_it;
-		++it)
+	BOOST_FOREACH(const LLNotificationTemplate::Tag& tag, p.tags)
 	{
-		lldebugs << "    tag \"" << std::string(it->value) << "\"" << llendl;
-		mTags.push_back(it->value);
+		lldebugs << "    tag \"" << std::string(tag.value) << "\"" << llendl;
+		mTags.push_back(tag.value);
 	}
 
 	mForm = LLNotificationFormPtr(new LLNotificationForm(p.name, p.form_ref.form));
@@ -1397,14 +1392,12 @@ void replaceFormText(LLNotificationForm::Params& form, const std::string& patter
 	{
 		form.ignore.text = replace;
 	}
-	for (LLInitParam::ParamIterator<LLNotificationForm::FormElement>::iterator it = form.form_elements.elements.begin(),
-			end_it = form.form_elements.elements.end();
-		it != end_it;
-		++it)
+
+	BOOST_FOREACH(LLNotificationForm::FormElement& element, form.form_elements.elements)
 	{
-		if (it->button.isChosen() && it->button.text() == pattern)
+		if (element.button.isChosen() && element.button.text() == pattern)
 		{
-			it->button.text = replace;
+			element.button.text = replace;
 		}
 	}
 }
@@ -1453,48 +1446,42 @@ bool LLNotifications::loadTemplates()
 
 	mTemplates.clear();
 
-	for(LLInitParam::ParamIterator<LLNotificationTemplate::GlobalString>::const_iterator it = params.strings.begin(), end_it = params.strings.end();
-		it != end_it;
-		++it)
+	BOOST_FOREACH(LLNotificationTemplate::GlobalString& string, params.strings)
 	{
-		mGlobalStrings[it->name] = it->value;
+		mGlobalStrings[string.name] = string.value;
 	}
 
 	std::map<std::string, LLNotificationForm::Params> form_templates;
 
-	for(LLInitParam::ParamIterator<LLNotificationTemplate::Template>::const_iterator it = params.templates.begin(), end_it = params.templates.end();
-		it != end_it;
-		++it)
+	BOOST_FOREACH(LLNotificationTemplate::Template& notification_template, params.templates)
 	{
-		form_templates[it->name] = it->form;
+		form_templates[notification_template.name] = notification_template.form;
 	}
 
-	for(LLInitParam::ParamIterator<LLNotificationTemplate::Params>::iterator it = params.notifications.begin(), end_it = params.notifications.end();
-		it != end_it;
-		++it)
+	BOOST_FOREACH(LLNotificationTemplate::Params& notification, params.notifications)
 	{
-		if (it->form_ref.form_template.isChosen())
+		if (notification.form_ref.form_template.isChosen())
 		{
 			// replace form contents from template
-			it->form_ref.form = form_templates[it->form_ref.form_template.name];
-			if(it->form_ref.form_template.yes_text.isProvided())
+			notification.form_ref.form = form_templates[notification.form_ref.form_template.name];
+			if(notification.form_ref.form_template.yes_text.isProvided())
 			{
-				replaceFormText(it->form_ref.form, "$yestext", it->form_ref.form_template.yes_text);
+				replaceFormText(notification.form_ref.form, "$yestext", notification.form_ref.form_template.yes_text);
 			}
-			if(it->form_ref.form_template.no_text.isProvided())
+			if(notification.form_ref.form_template.no_text.isProvided())
 			{
-				replaceFormText(it->form_ref.form, "$notext", it->form_ref.form_template.no_text);
+				replaceFormText(notification.form_ref.form, "$notext", notification.form_ref.form_template.no_text);
 			}
-			if(it->form_ref.form_template.cancel_text.isProvided())
+			if(notification.form_ref.form_template.cancel_text.isProvided())
 			{
-				replaceFormText(it->form_ref.form, "$canceltext", it->form_ref.form_template.cancel_text);
+				replaceFormText(notification.form_ref.form, "$canceltext", notification.form_ref.form_template.cancel_text);
 			}
-			if(it->form_ref.form_template.ignore_text.isProvided())
+			if(notification.form_ref.form_template.ignore_text.isProvided())
 			{
-				replaceFormText(it->form_ref.form, "$ignoretext", it->form_ref.form_template.ignore_text);
+				replaceFormText(notification.form_ref.form, "$ignoretext", notification.form_ref.form_template.ignore_text);
 			}
 		}
-		mTemplates[it->name] = LLNotificationTemplatePtr(new LLNotificationTemplate(*it));
+		mTemplates[notification.name] = LLNotificationTemplatePtr(new LLNotificationTemplate(notification));
 	}
 
 	return true;
@@ -1517,12 +1504,9 @@ bool LLNotifications::loadVisibilityRules()
 
 	mVisibilityRules.clear();
 
-	for(LLInitParam::ParamIterator<LLNotificationVisibilityRule::Rule>::iterator it = params.rules.begin(), 
-			end_it = params.rules.end();
-		it != end_it;
-		++it)
+	BOOST_FOREACH(LLNotificationVisibilityRule::Rule& rule, params.rules)
 	{
-		mVisibilityRules.push_back(LLNotificationVisibilityRulePtr(new LLNotificationVisibilityRule(*it)));
+		mVisibilityRules.push_back(LLNotificationVisibilityRulePtr(new LLNotificationVisibilityRule(rule)));
 	}
 
 	return true;
diff --git a/indra/llui/llsdparam.cpp b/indra/llui/llsdparam.cpp
index 4b69360e33..83bed3e745 100644
--- a/indra/llui/llsdparam.cpp
+++ b/indra/llui/llsdparam.cpp
@@ -34,6 +34,7 @@
 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;
 
 //
 // LLParamSDParser
@@ -60,29 +61,32 @@ LLParamSDParser::LLParamSDParser()
 }
 
 // special case handling of U32 due to ambiguous LLSD::assign overload
-bool LLParamSDParser::writeU32Param(LLParamSDParser::parser_t& parser, const void* val_ptr, const parser_t::name_stack_t& name_stack)
+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;
 	
-	LLSD* sd_to_write = sdparser.getSDWriteNode(name_stack);
-	if (!sd_to_write) return false;
+	LLSD& sd_to_write = LLParamSDParserUtilities::getSDWriteNode(*sdparser.mWriteRootSD, std::make_pair(name_stack.begin(), name_stack.end()));
+	sd_to_write.assign((S32)*((const U32*)val_ptr));
 
-	sd_to_write->assign((S32)*((const U32*)val_ptr));
 	return true;
 }
 
-bool LLParamSDParser::writeFlag(LLParamSDParser::parser_t& parser, const void* val_ptr, const parser_t::name_stack_t& name_stack)
+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;
 
-	LLSD* sd_to_write = sdparser.getSDWriteNode(name_stack);
-	if (!sd_to_write) return false;
+	LLParamSDParserUtilities::getSDWriteNode(*sdparser.mWriteRootSD, std::make_pair(name_stack.begin(), name_stack.end()));
 
 	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)
 {
@@ -90,7 +94,8 @@ void LLParamSDParser::readSD(const LLSD& sd, LLInitParam::BaseBlock& block, bool
 	mNameStack.clear();
 	setParseSilently(silent);
 
-	readSDValues(sd, block);
+	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)
@@ -100,43 +105,6 @@ void LLParamSDParser::writeSD(LLSD& sd, const LLInitParam::BaseBlock& block)
 	block.serializeBlock(*this);
 }
 
-const LLSD NO_VALUE_MARKER;
-
-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 if (sd.isUndefined())
-	{
-		mCurReadSD = &NO_VALUE_MARKER;
-		block.submitValue(mNameStack, *this);
-	}
-	else
-	{
-		mCurReadSD = &sd;
-		block.submitValue(mNameStack, *this);
-	}
-}
-
 /*virtual*/ std::string LLParamSDParser::getCurrentElementName()
 {
 	std::string full_name = "sd";
@@ -150,81 +118,6 @@ void LLParamSDParser::readSDValues(const LLSD& sd, LLInitParam::BaseBlock& block
 	return full_name;
 }
 
-LLSD* LLParamSDParser::getSDWriteNode(const parser_t::name_stack_t& name_stack)
-{
-	//TODO: implement nested LLSD writing
-	LLSD* sd_to_write = mWriteRootSD;
-	bool new_traversal = false;
-	for (name_stack_t::const_iterator it = name_stack.begin(), prev_it = mNameStack.begin();
-		it != name_stack.end();
-		++it)
-	{
-		bool new_array_entry = false;
-		if (prev_it == mNameStack.end())
-		{
-			new_traversal = true;
-		}
-		else
-		{
-			if (!new_traversal						// have not diverged yet from previous trace
-				&& prev_it->first == it->first		// names match
-				&& prev_it->second != it->second)	// versions differ
-			{
-				// name stacks match, but version numbers differ in last place.
-				// create a different entry at this point using an LLSD array
-				new_array_entry = true;
-			}
-			if (prev_it->first != it->first			// names differ
-				|| prev_it->second != it->second)	// versions differ
-			{
-				// at this point we have diverged from our last trace
-				// so any elements referenced here are new
-				new_traversal = true;
-			}
-		}
-
-		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_array_entry && !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;
-			}
-		}
-		if (prev_it != mNameStack.end())
-		{
-			++prev_it;
-		}
-	}
-	mNameStack = name_stack;
-	
-	//llinfos << ll_pretty_print_sd(*mWriteRootSD) << llendl;
-	return sd_to_write;
-}
 
 bool LLParamSDParser::readFlag(Parser& parser, void* val_ptr)
 {
@@ -312,3 +205,125 @@ bool LLParamSDParser::readSD(Parser& parser, void* val_ptr)
 	*((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);
+		}
+	}
+}
+
+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)
+		LLParamSDParserUtilities::readSDValues(boost::bind(&serializeElement, boost::ref(p), _1, _2), mValue);
+	}
+}
diff --git a/indra/llui/llsdparam.h b/indra/llui/llsdparam.h
index a371c28f68..265993ffb5 100644
--- a/indra/llui/llsdparam.h
+++ b/indra/llui/llsdparam.h
@@ -29,6 +29,15 @@
 #define LL_LLSDPARAM_H
 
 #include "llinitparam.h"
+#include "boost/function.hpp"
+
+struct LLParamSDParserUtilities
+{
+	static LLSD& getSDWriteNode(LLSD& input, LLInitParam::Parser::name_stack_range_t& name_stack_range);
+
+	typedef boost::function<void (const LLSD&, LLInitParam::Parser::name_stack_t&)> read_sd_cb_t;
+	static void readSDValues(read_sd_cb_t cb, const LLSD& sd, LLInitParam::Parser::name_stack_t& stack = LLInitParam::Parser::name_stack_t());
+};
 
 class LLParamSDParser 
 :	public LLInitParam::Parser
@@ -45,25 +54,22 @@ public:
 	/*virtual*/ std::string getCurrentElementName();
 
 private:
-	void readSDValues(const LLSD& sd, LLInitParam::BaseBlock& block);
+	void submit(LLInitParam::BaseBlock& block, const LLSD& sd, LLInitParam::Parser::name_stack_t& name_stack);
 
 	template<typename T>
-	static bool writeTypedValue(Parser& parser, const void* val_ptr, const parser_t::name_stack_t& name_stack)
+	static bool writeTypedValue(Parser& parser, const void* val_ptr, parser_t::name_stack_t& name_stack)
 	{
 		LLParamSDParser& sdparser = static_cast<LLParamSDParser&>(parser);
 		if (!sdparser.mWriteRootSD) return false;
 		
-		LLSD* sd_to_write = sdparser.getSDWriteNode(name_stack);
-		if (!sd_to_write) return false;
+		LLSD& sd_to_write = LLParamSDParserUtilities::getSDWriteNode(*sdparser.mWriteRootSD, std::make_pair(name_stack.begin(), name_stack.end()));
 
-		sd_to_write->assign(*((const T*)val_ptr));
+		sd_to_write.assign(*((const T*)val_ptr));
 		return true;
 	}
 
-	LLSD* getSDWriteNode(const parser_t::name_stack_t& name_stack);
-
-	static bool writeU32Param(Parser& parser, const void* value_ptr, const parser_t::name_stack_t& name_stack);
-	static bool writeFlag(Parser& parser, const void* value_ptr, const parser_t::name_stack_t& name_stack);
+	static bool writeU32Param(Parser& parser, const void* value_ptr, parser_t::name_stack_t& name_stack);
+	static bool writeFlag(Parser& parser, const void* value_ptr, parser_t::name_stack_t& name_stack);
 
 	static bool readFlag(Parser& parser, void* val_ptr);
 	static bool readS32(Parser& parser, void* val_ptr);
@@ -85,29 +91,29 @@ private:
 
 template<typename T>
 class LLSDParamAdapter : public T
+{
+public:
+	LLSDParamAdapter() {}
+	LLSDParamAdapter(const LLSD& sd)
 	{
-	public:
-		LLSDParamAdapter() {}
-		LLSDParamAdapter(const LLSD& sd)
-		{
-			LLParamSDParser parser;
-			parser.readSD(sd, *this);
-		}
-
-		operator LLSD() const
-		{
-			LLParamSDParser parser;
-			LLSD sd;
-			parser.writeSD(sd, *this);
-			return sd;
-		}
+		LLParamSDParser parser;
+		parser.readSD(sd, *this);
+	}
+
+	operator LLSD() const
+	{
+		LLParamSDParser parser;
+		LLSD sd;
+		parser.writeSD(sd, *this);
+		return sd;
+	}
 		
-		LLSDParamAdapter(const T& val)
-		: T(val)
-		{
-			T::operator=(val);
-		}
-	};
+	LLSDParamAdapter(const T& val)
+	: T(val)
+	{
+		T::operator=(val);
+	}
+};
 
 #endif // LL_LLSDPARAM_H
 
diff --git a/indra/llui/tests/llurlentry_stub.cpp b/indra/llui/tests/llurlentry_stub.cpp
index d522123260..c8303bfc89 100644
--- a/indra/llui/tests/llurlentry_stub.cpp
+++ b/indra/llui/tests/llurlentry_stub.cpp
@@ -124,7 +124,7 @@ namespace LLInitParam
 	{
 		descriptor.mCurrentBlockPtr = this;
 	}
-	bool BaseBlock::deserializeBlock(Parser& p, Parser::name_stack_range_t name_stack, S32 generation){ return true; }
+	bool BaseBlock::deserializeBlock(Parser& p, Parser::name_stack_range_t name_stack, bool new_name){ return true; }
 	void BaseBlock::serializeBlock(Parser& parser, Parser::name_stack_t name_stack, const LLInitParam::BaseBlock* diff_block) const {}
 	bool BaseBlock::inspectBlock(Parser& parser, Parser::name_stack_t name_stack, S32 min_value, S32 max_value) const { return true; }
 	bool BaseBlock::mergeBlock(BlockDescriptor& block_data, const BaseBlock& other, bool overwrite) { return true; }
diff --git a/indra/llui/tests/llurlentry_test.cpp b/indra/llui/tests/llurlentry_test.cpp
index 2f814f4200..c1fb050206 100644
--- a/indra/llui/tests/llurlentry_test.cpp
+++ b/indra/llui/tests/llurlentry_test.cpp
@@ -72,7 +72,6 @@ S32 LLUIImage::getHeight() const
 
 namespace LLInitParam
 {
-	S32 Parser::sNextParseGeneration = 0;
 	BlockDescriptor::BlockDescriptor() {}
 	ParamDescriptor::ParamDescriptor(param_handle_t p, 
 						merge_func_t merge_func, 
diff --git a/indra/llui/tests/llurlmatch_test.cpp b/indra/llui/tests/llurlmatch_test.cpp
index fb6a2eabf1..9dbccf125a 100644
--- a/indra/llui/tests/llurlmatch_test.cpp
+++ b/indra/llui/tests/llurlmatch_test.cpp
@@ -66,8 +66,6 @@ namespace LLInitParam
 	BaseBlock::BaseBlock() {}
 	BaseBlock::~BaseBlock() {}
 
-	S32 Parser::sNextParseGeneration = 0;
-
 	BlockDescriptor::BlockDescriptor() {}
 	ParamDescriptor::ParamDescriptor(param_handle_t p, 
 						merge_func_t merge_func, 
@@ -98,7 +96,7 @@ namespace LLInitParam
 		mEnclosingBlockOffset = 0x7FFFffff & ((U32)(my_addr - block_addr));
 	}
 
-	bool BaseBlock::deserializeBlock(Parser& p, Parser::name_stack_range_t name_stack, S32 generation){ return true; }
+	bool BaseBlock::deserializeBlock(Parser& p, Parser::name_stack_range_t name_stack, bool new_name){ return true; }
 	void BaseBlock::serializeBlock(Parser& parser, Parser::name_stack_t name_stack, const LLInitParam::BaseBlock* diff_block) const {}
 	bool BaseBlock::inspectBlock(Parser& parser, Parser::name_stack_t name_stack, S32 min_count, S32 max_count) const { return true; }
 	bool BaseBlock::mergeBlock(BlockDescriptor& block_data, const BaseBlock& other, bool overwrite) { return true; }