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	diff --git a/config/default.json b/config/default.json
	index e7f99d6..cb11b3f 100644
	--- a/config/default.json
	+++ b/config/default.json
	@@ -1,74 +1,75 @@
	{
	"containers": {
	"id": {
	"implementations": "impl_fulfill_cluster",
	"clusters": "var_cluster",
	"prototypes": "proto_cluster",
	"linkedlist": "linkedlist"
	},

	"impl": {
	"solid": "solid",
	"onthefly": "on_the_fly"
	}
	},

	"logging": {
	"id": "logging"
	},

	"function-entry": "entry",

	"transcend": {
	"bindings" : {
	"variable": "bind",
	"function": "bind_func",
	"scope": "bind_scope",
	"function_demand" : "bind_function_demand",
	"scope_decision": "bind_scope_decision"
	},

	"context" : {
	"decisions":{
	"dependent": "resolution_dependency"
	}
	},

	"nonevalue": "nonevalue",
	"ret": {
	"symbol": "retv",
	"tag": "ret"
	}
	},

	"tests": {
	- "template": "intrinsic-query",
	+ "template": "latex",

	"templates": {
	"current-fix":"*",
	"default": "-Adhoc.:Containers.*:Compilation.full_IFStatementWithVariantType:Types.full_VariantType_Switch1:Context.full_LateContext:Context.pathDependentContext:CFA.testLoopContextExists",
	"ast": "AST.*",
	"effects": "Effects.*",
	"basic": "Attachments.*",
	"compilation": "Compilation.*-Compilation.full_IFStatementWithVariantType",
	"communication": "Communication.*",
	"cfa": "CFA.*",
	"containers": "Containers.*",
	"dfa": "DFA.*",
	"diagnostic": "Diagnostic.*",
	"dsl": "Association.:Interpretation.",
	"exploitation": "Exploitation.*",
	"ExpressionSerializer": "ExpressionSerializer.*",
	"externc": "InterfaceExternC.*",
	"loops": "Loop.*",
	- "latereasoning": "LateReasoning.Compilation2",
	+ "latereasoning": "LateReasoning.Syntax1:LateReasoning.Pass_DFAPassDec_1",
	+ "latex": "Latex.Compilation_TransitFn1",
	"modules": "Modules.*",
	"polymorphs": "Polymorphs.*",
	"intrinsic-query": "Types.SlaveTypes:Association.TypedQuery",
	"types": "Types.*",
	"virtualization": "Virtualization.test2",
	"vendorsAPI/clang": "ClangAPI.*",
	"vendorsAPI/xml2": "libxml2*"
	}
	}
	}
	diff --git a/cpp/src/CMakeLists.txt b/cpp/src/CMakeLists.txt
	index 8fd4295..2be602b 100644
	--- a/cpp/src/CMakeLists.txt
	+++ b/cpp/src/CMakeLists.txt
	@@ -1,232 +1,236 @@
	cmake_minimum_required(VERSION 2.8.11)
	project(xreate)
	cmake_policy(SET CMP0022 NEW)

	message("MODULES" ${CMAKE_MODULE_PATH})

	# LLVM
	#======================
	FIND_PACKAGE (LLVM REQUIRED)
	set(LLVM_VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR})

	message(STATUS "Found LLVM ${LLVM_PACKAGE_VERSION}")
	message("LLVM LIB PATH:" ${LLVM_LIBRARY_DIRS})
	message(STATUS "Using LLVMConfig.cmake in: ${LLVM_DIR}")

	INCLUDE_DIRECTORIES(${LLVM_INCLUDE_DIRS})
	message(STATUS "INCLUDE DIR: ${LLVM_INCLUDE_DIRS}")

	add_definitions(${LLVM_DEFINITIONS})
	message(STATUS "LLVM DEFS: " ${LLVM_DEFINITIONS})

	execute_process(
	COMMAND llvm-config --libs
	OUTPUT_VARIABLE LLVM_LIBS
	OUTPUT_STRIP_TRAILING_WHITESPACE)
	message(STATUS "LLVM LIBS: " ${LLVM_LIBS})


	# CLANG
	#======================
	set(CLANG_LIBS
	clangCodeGen
	clangASTMatchers
	clangQuery
	clangTooling
	clangFrontend
	clangSerialization
	clangDriver
	clangParse
	clangSema
	clangAnalysis
	clangAST
	clangEdit
	clangLex
	clangBasic
	)



	# POTASSCO
	#======================
	set(POTASSCO_PATH "/opt/potassco/clingo" CACHE PATH "Path to potassco sources")
	set(POTASSCO_INCLUDE_PATH
	${POTASSCO_PATH}/libgringo
	${POTASSCO_PATH}/libclasp
	${POTASSCO_PATH}/libclingo
	${POTASSCO_PATH}/libprogram_opts
	${POTASSCO_PATH}/liblp
	)
	INCLUDE_DIRECTORIES(${POTASSCO_INCLUDE_PATH})
	set(LIBCLASP_LIBS
	clingo
	clasp
	gringo
	program_opts
	reify
	lp
	)
	message("CLASP LIBS: " ${LIBCLASP_LIBS})



	# OTHER DEPENDENCIES
	#===========================
	set(JEAYESON_INCLUDE_PATH
	${CMAKE_HOME_DIRECTORY}/../vendors/jeayeson/include/
	)
	INCLUDE_DIRECTORIES(${JEAYESON_INCLUDE_PATH})



	# COCO
	#===========================

	set(COCO_EXECUTABLE "" CACHE PATH "Path to coco executable")
	set(COCO_FRAMES_PATH "" CACHE PATH "Path to coco frames")

	set(COCO_GRAMMAR_PATH ${CMAKE_HOME_DIRECTORY}/../grammar/)
	set(COCO_SOURCE_FILES_MAIN
	${COCO_GRAMMAR_PATH}/main/Parser.cpp
	${COCO_GRAMMAR_PATH}/main/Scanner.cpp
	)

	set(COCO_SOURCE_FILES_MODULES
	${COCO_GRAMMAR_PATH}/modules/Parser.cpp
	${COCO_GRAMMAR_PATH}/modules/Scanner.cpp
	)

	set(COCO_SOURCE_FILES ${COCO_SOURCE_FILES_MODULES} ${COCO_SOURCE_FILES_MAIN})

	INCLUDE_DIRECTORIES(${COCO_GRAMMAR_PATH})

	add_custom_command(OUTPUT ${COCO_SOURCE_FILES_MAIN}
	COMMAND ${COCO_GRAMMAR_PATH}/gen-grammar main ${COCO_EXECUTABLE} ${COCO_FRAMES_PATH}
	WORKING_DIRECTORY ${COCO_GRAMMAR_PATH}
	MAIN_DEPENDENCY ${COCO_GRAMMAR_PATH}/xreate.ATG
	)

	add_custom_command(OUTPUT ${COCO_SOURCE_FILES_MODULES}
	COMMAND ${COCO_GRAMMAR_PATH}/gen-grammar modules ${COCO_EXECUTABLE} ${COCO_FRAMES_PATH}
	WORKING_DIRECTORY ${COCO_GRAMMAR_PATH}
	MAIN_DEPENDENCY ${COCO_GRAMMAR_PATH}/modules.ATG
	)

	message(STATUS "COCO GRAMMAR BUILD STATUS:" ${COCO_OUTPUT})



	# XREATE
	#======================
	set(SOURCE_FILES
	- compilation/interpretation-instructions.cpp
	- analysis/typeinference.cpp
	+ analysis/cfagraph.cpp
	compilation/latereasoning.cpp
	+ analysis/interpretation.cpp
	+ query/latex.cpp
	+ query/polymorph.cpp
	+ compilation/polymorph.cpp
	aux/latereasoning.cpp
	+ compilation/latex.cpp
	+ compilation/interpretation-instructions.cpp
	+ analysis/typeinference.cpp
	xreatemanager.cpp
	transcendlayer.cpp
	analysis/dfagraph.cpp
	analysis/DominatorsTreeAnalysisProvider.cpp
	llvmlayer.cpp
	ExternLayer.cpp
	pass/compilepass.cpp
	- query/polymorph.cpp
	analysis/utils.cpp
	pass/dfapass.cpp
	compilation/targetinterpretation.cpp
	pass/interpretationpass.cpp
	ast.cpp
	aux/xreatemanager-decorators.cpp
	compilation/operators.cpp
	compilation/transformations.cpp
	compilation/transformersaturation.cpp
	pass/versionspass.cpp
	attachments.cpp
	- analysis/cfagraph.cpp
	compilation/containers.cpp
	compilation/advancedinstructions.cpp
	utils.cpp
	pass/abstractpass.cpp
	pass/cfapass.cpp
	contextrule.cpp
	query/containers.cpp
	aux/serialization/expressionserializer.cpp
	modules.cpp
	)

	set(XREATE_INCLUDE_DIRS
	${CMAKE_CURRENT_SOURCE_DIR}/
	)

	INCLUDE_DIRECTORIES(${XREATE_INCLUDE_DIRS})

	set(XREATE_PRIVATE_INCLUDE_DIRS
	${XREATE_INCLUDE_DIRS}
	${COCO_GRAMMAR_PATH}
	${JEAYESON_INCLUDE_PATH}
	${LLVM_INCLUDE_DIRS}
	${POTASSCO_INCLUDE_PATH}
	)

	add_library(${PROJECT_NAME} SHARED ${COCO_SOURCE_FILES} ${SOURCE_FILES})

	target_link_libraries(${PROJECT_NAME})


	target_include_directories(${PROJECT_NAME} INTERFACE
	${XREATE_INCLUDE_DIRS}
	${COCO_GRAMMAR_PATH}
	${JEAYESON_INCLUDE_PATH}
	${LLVM_INCLUDE_DIRS}
	${POTASSCO_INCLUDE_PATH}
	)

	get_directory_property(DEFINITIONS_ALL DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} COMPILE_DEFINITIONS)
	message("definitions all: " ${DEFINITIONS_ALL})
	target_compile_definitions(${PROJECT_NAME} INTERFACE ${DEFINITIONS_ALL})

	get_directory_property(COMPILATION_OPTIONS_ALL DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} COMPILE_OPTIONS)
	message("compilations all: " ${COMPILATION_OPTIONS_ALL})
	target_compile_options(${PROJECT_NAME} INTERFACE ${COMPILATION_OPTIONS_ALL})

	SET_PROPERTY(TARGET ${PROJECT_NAME} PROPERTY
	INTERFACE_LINK_LIBRARIES ${LIBCLASP_LIBS} ${CLANG_LIBS} ${LLVM_LIBS} tbb boost_system boost_filesystem
	)

	#${CLANG_LIBS}


	#set (LINK_INTERFACE_LIBRARIES "")

	# FUNCTION(PREPEND var prefix)
	# SET(listVar "")
	# FOREACH(f ${ARGN})
	# LIST(APPEND listVar "${prefix}/${f}")
	# ENDFOREACH(f)
	# SET(${var} "${listVar}" PARENT_SCOPE)
	# ENDFUNCTION(PREPEND)

	#set(COTIRE_UNITY_SOURCE_MAXIMUM_NUMBER_OF_INCLUDES "-j4")
	#cotire(xreate)


	# MACRO (ADD_PCH_RULE _header_filename _src_list)
	# SET(_gch_filename "${_header_filename}.gch")
	# LIST(APPEND ${_src_list} ${_gch_filename})
	# SET (_args ${CMAKE_CXX_FLAGS})
	# LIST(APPEND _args -c ${_header_filename} -o ${_gch_filename})
	# GET_DIRECTORY_PROPERTY(DIRINC INCLUDE_DIRECTORIES)
	# foreach (_inc ${DIRINC})
	# LIST(APPEND _args "-I" ${_inc})
	# endforeach(_inc ${DIRINC})
	# SEPARATE_ARGUMENTS(_args)
	# add_custom_command(OUTPUT ${_gch_filename}
	# COMMAND rm -f ${_gch_filename}
	# COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} ${_args}
	# DEPENDS ${_header_filename})
	# ENDMACRO(ADD_PCH_RULE _header_filename _src_list)

	# ADD_PCH_RULE (${CMAKE_HOME_DIRECTORY}/src/ast.h SOURCE_FILES)
	# ADD_PCH_RULE (${CMAKE_HOME_DIRECTORY}/src/llvmlayer.h SOURCE_FILES)
	# ADD_PCH_RULE (${CMAKE_HOME_DIRECTORY}/src/clasplayer.h SOURCE_FILES)
	# ADD_PCH_RULE (${CMAKE_HOME_DIRECTORY}/src/pass/abstractpass.h SOURCE_FILES)
	diff --git a/cpp/src/analysis/cfagraph.cpp b/cpp/src/analysis/cfagraph.cpp
	index aa97363..9d3caa9 100644
	--- a/cpp/src/analysis/cfagraph.cpp
	+++ b/cpp/src/analysis/cfagraph.cpp
	@@ -1,204 +1,221 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: CFAGraph.cpp
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on June 27, 2016, 2:09 PM
	*/

	/**
	* \file cfagraph.h
	* \brief Control Flow Analysis(CFA) graph data
	*
	*/

	#include "analysis/cfagraph.h"
	#include "analysis/utils.h"

	using namespace xreate::cfa;
	using namespace std;

	void
	CFAGraph::print(std::ostringstream& output) const {
	- const std::string& atomBinding = Config::get("transcend.bindings.function");
	- const std::string& atomBindingScope = Config::get("transcend.bindings.scope");
	+ const std::string& atomBinding = Config::get("transcend.bindings.function");
	+ const std::string& atomBindingScope = Config::get("transcend.bindings.scope");

	- //show function tags
	+ output << endl << "%\t\tStatic analysis: CFA" << endl;
	+ output << __outputPrecomputed.str();
	+
	+ //show function tags
	int counterTags = 0;
	std::ostringstream bufFunctionNames;
	boost::format formatFunction("function(%1%).");
	boost::format formatBind(atomBinding + "(%1%, %2%).");
	- for (auto function: this->__nodesFunction.left) {
	+ for (auto function : this->__nodesFunction.left) {
	const auto tags = this->__functionTags.equal_range(function.first);
	if (tags.first == tags.second) {
	//no tags
	bufFunctionNames << "; " << function.second ;
	continue;
	}

	output << formatFunction % (function.second) << std::endl;
	- for (const auto& tag_: boost::make_iterator_range(tags)){
	+ for (const auto& tag_ : boost::make_iterator_range(tags)) {
	const Expression& tag = tag_.second;

	list<string> tagRaw = xreate::analysis::compile(tag);
	- assert(tagRaw.size() == 1);
	+ assert(tagRaw.size() == 1);

	output << formatBind
	- % (function.second)
	- % (tagRaw.front())
	+ % (function.second)
	+ % (tagRaw.front())
	<< endl;
	++counterTags;
	}
	}

	- if (bufFunctionNames.tellp()){
	- output << formatFunction % (bufFunctionNames.str().substr(2)) << std::endl;
	+ if (bufFunctionNames.tellp()) {
	+ output << formatFunction % (bufFunctionNames.str().substr(2)) << std::endl;
	}

	if (counterTags == 0) {
	output << "%no functtion tags at all" << endl;
	}

	- //declare scopes
	+ //declare scopes
	boost::format formatScope("scope(0..%1%).");
	output << formatScope % (__transcend->getScopesCount() - 1) << std::endl;

	//show context rules:
	- for (auto rule: this->__contextRules) {
	- output << ContextRule(rule.second).compile(rule.first) << std::endl;
	+ for (auto rule : this->__contextRules) {
	+ output << ContextRule(rule.second).compile(rule.first) << std::endl;
	};

	- //show scope tags:
	+ //show scope tags:
	counterTags = 0;
	boost::format formatScopeBind(atomBindingScope + "(%1%, %2%, strong).");
	- for (auto entry: this->__scopeTags) {
	+ for (auto entry : this->__scopeTags) {
	ScopePacked scopeId = entry.first;
	const Expression& tag = entry.second;
	list<string> tagRaw = xreate::analysis::compile(tag);
	assert(tagRaw.size() == 1);

	- output << formatScopeBind % scopeId %(tagRaw.front()) << endl;
	+ output << formatScopeBind % scopeId % (tagRaw.front()) << endl;
	++counterTags;
	}

	if (counterTags == 0) {
	- output << "%scope tags: no tags at all" << endl;
	+ output << "%scope tags: no tags at all" << endl;
	}

	- output << endl << "%\t\tStatic analysis: CFA" << endl;
	-
	- //parent connections
	- //TOTEST CFG parent function
	+ //parent connections
	+ //TOTEST CFG parent function
	boost::format formatFunctionParent("cfa_parent(%1%, function(%2%)).");
	- for (const auto &relation: this->__parentFunctionRelations) {
	+ for (const auto &relation : this->__parentFunctionRelations) {
	const string& function = this->__nodesFunction.left.at(relation.right);

	output << formatFunctionParent % relation.left % function << endl;
	}

	- //TOTEST CFG parent scope
	+ //TOTEST CFG parent scope
	boost::format formatScopeParent("cfa_parent(%1%, scope(%2%)).");
	- for (const auto &relation: this->__parentScopeRelations) {
	+ for (const auto &relation : this->__parentScopeRelations) {
	output << formatScopeParent % relation.first % relation.second << endl;
	}

	- //call connections
	+ //call connections
	boost::format formatCall("cfa_call(%1%, %2%).");

	- for (const auto &relation: this->__callRelations) {
	+ for (const auto &relation : this->__callRelations) {
	const ScopePacked scopeFrom = relation.left;
	const string& functionTo = this->__nodesFunction.left.at(relation.right);

	output << formatCall % (scopeFrom) % (functionTo) << endl;
	}

	- //function specializations descrtiption
	- //SECTIONTAG late-context cfa_function_specializations
	+ //function specializations descrtiption
	+ //SECTIONTAG late-context cfa_function_specializations
	boost::format formatSpecializations("cfa_function_specializations(%1%, %2%).");
	const list<ManagedFnPtr>& functions = __transcend->ast->getAllFunctions();
	- for (auto f: functions){
	- if (f->guard.isValid()){
	+ for (auto f : functions) {
	+ if (f->guard.isValid()) {
	list<string> guardRaw = xreate::analysis::compile(f->guard);
	assert(guardRaw.size() == 1);
	output << formatSpecializations % (f->getName()) % (guardRaw.front()) << endl;
	}
	}

	//Dependencies
	boost::format formatDependencies("cfa_scope_depends(%1%, %2%).");
	- for(const auto relation: __dependencyRelations){
	+ for(const auto relation : __dependencyRelations) {
	output << formatDependencies % relation.first % relation.second << endl;
	}
	std::multimap<ScopePacked, ScopePacked> __dependencyRelations;
	}

	void
	CFAGraph::addFunctionAnnotations(const std::string& function, const std::map<std::string, Expression>& tags) {
	unsigned int fid = registerNodeFunction(function);

	- for (auto& tag: tags){
	- __functionTags.emplace(fid, tag.second);
	+ for (auto& tag : tags) {
	+ __functionTags.emplace(fid, tag.second);
	}
	}

	void
	-CFAGraph::addScopeAnnotations(const ScopePacked& scope, const std::vector<Expression>& tags){
	- for (Expression tag: tags){
	- __scopeTags.emplace(scope, tag);
	+CFAGraph::addScopeAnnotations(const ScopePacked& scope, const std::vector<Expression>& tags) {
	+ for (Expression tag : tags) {
	+ __scopeTags.emplace(scope, tag);
	}
	}

	void
	-CFAGraph::addContextRules(const ScopePacked& scope, const std::vector<Expression>& rules){
	- for (Expression rule: rules){
	- __contextRules.emplace(scope, rule);
	+CFAGraph::addContextRules(const ScopePacked& scope, const std::vector<Expression>& rules) {
	+ for (Expression rule : rules) {
	+ __contextRules.emplace(scope, rule);
	}
	}

	void
	CFAGraph::addCallConnection(const ScopePacked& scopeFrom, const std::string& functionTo) {
	unsigned int idFuncTo = registerNodeFunction(functionTo);

	__callRelations.insert(CALL_RELATIONS::value_type(scopeFrom, idFuncTo));
	}

	void
	-CFAGraph::addParentConnection(const ScopePacked& scope, const std::string& functionParent){
	+CFAGraph::addParentConnection(const ScopePacked& scope, const std::string& functionParent) {
	__parentFunctionRelations.insert(PARENT_FUNCTION_RELATIONS::value_type(scope, registerNodeFunction(functionParent)));
	}

	void
	-CFAGraph::addParentConnection(const ScopePacked& scope, const ScopePacked& scopeParent){
	+CFAGraph::addParentConnection(const ScopePacked& scope, const ScopePacked& scopeParent) {
	__parentScopeRelations.emplace(scope, scopeParent);
	}

	unsigned int
	-CFAGraph::registerNodeFunction(const std::string& fname){
	+CFAGraph::registerNodeFunction(const std::string& fname) {
	auto pos = __nodesFunction.left.insert(make_pair(__nodesFunction.size(), fname));

	return pos.first->first;
	}

	void
	-CFAGraph::addDependency(const ScopePacked& scope, const ScopePacked& scopeDependency){
	+CFAGraph::addDependency(const ScopePacked& scope, const ScopePacked& scopeDependency) {
	__dependencyRelations.emplace(scope, scopeDependency);
	}

	-bool CFAGraph::isDependent(const ScopePacked& scope) const{
	+bool
	+CFAGraph::isDependent(const ScopePacked& scope) const {
	return __dependencyRelations.count(scope) > 0;
	}

	-void CFAGraph::transmitDependencies(const ScopePacked& scopeTo, const ScopePacked& scopeFrom){
	+void
	+CFAGraph::transmitDependencies(const ScopePacked& scopeTo, const ScopePacked& scopeFrom) {
	auto range = __dependencyRelations.equal_range(scopeFrom);

	std::list<ScopePacked> dependencies;
	- for (auto pairI = range.first; pairI != range.second; ++pairI){
	+ for (auto pairI = range.first; pairI != range.second; ++pairI) {
	dependencies.push_back(pairI->second);
	}

	- for(auto dep: dependencies){
	+ for(auto dep : dependencies) {
	__dependencyRelations.emplace(scopeTo, dep);
	}
	}
	+
	+void
	+CFAGraph::addScope(CodeScope* scope) {
	+ boost::format formatScopeBinding("ast_scope_binding(%1%, %2%, \"%3%\").");
	+
	+ ScopePacked scopeId = __transcend->pack(scope);
	+ for (int id, size = scope->__bindings.size(); id < size; ++id) {
	+ __outputPrecomputed << formatScopeBinding
	+ % scopeId
	+ % id
	+ % scope->__bindings.at(id)
	+ << endl;
	+ }
	+}
	\ No newline at end of file
	diff --git a/cpp/src/analysis/cfagraph.h b/cpp/src/analysis/cfagraph.h
	index 743799e..a4e1dc4 100644
	--- a/cpp/src/analysis/cfagraph.h
	+++ b/cpp/src/analysis/cfagraph.h
	@@ -1,63 +1,64 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: CFAGraph.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on June 27, 2016, 2:09 PM
	*/

	#ifndef CFAGRAPH_H
	#define CFAGRAPH_H

	#include "transcendlayer.h"

	namespace xreate {namespace cfa {

	/** \brief Represents CFA analysis data produced by CFAPass */
	class CFAGraph: public IAnalysisReport {
	public:
	typedef boost::bimap<ScopePacked, boost::bimaps::multiset_of<unsigned int>> PARENT_FUNCTION_RELATIONS;
	PARENT_FUNCTION_RELATIONS __parentFunctionRelations;
	std::map<ScopePacked, ScopePacked> __parentScopeRelations;
	std::multimap<ScopePacked, ScopePacked> __dependencyRelations;

	typedef boost::bimap<
	boost::bimaps::multiset_of<ScopePacked>,
	boost::bimaps::multiset_of<unsigned int>,
	boost::bimaps::set_of_relation<>
	> CALL_RELATIONS;

	CALL_RELATIONS __callRelations;

	boost::bimap<unsigned int, std::string > __nodesFunction;
	std::multimap<unsigned int, Expression> __functionTags;
	std::multimap<ScopePacked, Expression> __scopeTags;
	std::multimap<ScopePacked, ContextRule> __contextRules;

	void print(std::ostringstream& output) const override;
	CFAGraph(TranscendLayer* engine): __transcend(engine){}

	void addFunctionAnnotations(const std::string& function, const std::map<std::string, Expression>& tags);
	void addScopeAnnotations(const ScopePacked& scope, const std::vector<Expression>&tags);
	void addContextRules(const ScopePacked& scope, const std::vector<Expression>&rules);
	-
	void addCallConnection(const ScopePacked& scopeFrom, const std::string& functionTo);
	void addParentConnection(const ScopePacked& scope, const std::string& functionParent);
	void addParentConnection(const ScopePacked& scope, const ScopePacked& scopeParent);
	void addDependency(const ScopePacked& scope, const ScopePacked& scopeDependency);
	bool isDependent(const ScopePacked& scope) const;
	void transmitDependencies(const ScopePacked& scopeTo, const ScopePacked& scopeFrom);
	+ void addScope(CodeScope* scope);

	private:
	TranscendLayer* __transcend;
	+ std::ostringstream __outputPrecomputed;

	unsigned int registerNodeFunction(const std::string& fname);

	};

	}} //end of namespace xreate::cfa

	#endif /* CFAGRAPH_H */

	diff --git a/cpp/src/analysis/interpretation.cpp b/cpp/src/analysis/interpretation.cpp
	index 58c7cb6..79e2bf8 100644
	--- a/cpp/src/analysis/interpretation.cpp
	+++ b/cpp/src/analysis/interpretation.cpp
	@@ -1,234 +1,273 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 25, 2018, 3:25 PM
	*
	* \file interpretation.cpp
	* \brief interpretation
	*/

	#include "analysis/interpretation.h"

	using namespace std;

	namespace xreate{
	namespace interpretation{

	+typedef vector<int> InstancePacked;
	+
	+std::list<Expression>
	+generateAllInstancesInDomain2(const ExpandedType& domainT) {
	+ if(!domainT->isValid()) {
	+ return {Expression()};
	+ }
	+ assert(domainT->__operator == TypeOperator::VARIANT);
	+ std::list<Expression> results;
	+ int variantId = -1;
	+
	+ bool flagDomainStateless = std::all_of(domainT->__operands.begin(), domainT->__operands.end(),
	+ [](const TypeAnnotation & subdomainT) {
	+ return !subdomainT.isValid();
	+ });
	+
	+ for(const TypeAnnotation& subdomainT : domainT->__operands) {
	+ ++variantId;
	+
	+ if(flagDomainStateless) {
	+ Expression result(Operator::VARIANT,{});
	+ result.setValueDouble(variantId);
	+ results.push_back(result);
	+ continue;
	+ }
	+
	+ std::list<Expression> subresults = generateAllInstancesInDomain2(ExpandedType(subdomainT));
	+ for (const Expression& subresult : subresults) {
	+ Expression result(Operator::VARIANT,{});
	+ result.setValueDouble(variantId);
	+ result.operands.push_back(subresult);
	+
	+ results.push_back(result);
	+ }
	+ }
	+
	+ return results;
	+}
	+
	TypeAnnotation
	collapseFnGroup(const std::list<Gringo::Symbol>& symbols) {
	Gringo::Symbol symbolAny = symbols.front();
	size_t operandsCount = symbolAny.args().size;

	TypeAnnotation resultT;
	resultT.__operands.reserve(operandsCount);

	for(size_t operandId = 0; operandId < operandsCount; ++operandId) {
	std::list<Gringo::Symbol> column;

	for(const Gringo::Symbol& row : symbols) {
	column.push_back(row.args()[operandId]);
	}

	TypeAnnotation operandT = collapseColumn(column);
	resultT.__operands.push_back(operandT);
	}

	if(resultT.__operands.size() == 1) {
	return resultT.__operands.front();
	}

	if(resultT.__operands.size() > 1) {
	resultT.__operator = TypeOperator::LIST_NAMED;
	return resultT;
	}

	return resultT;
	}

	TypeAnnotation
	collapseColumn(const std::list<Gringo::Symbol>& symbols) {
	TypeAnnotation resultT;
	if(!symbols.size()) return resultT;

	Gringo::Symbol symbolAny = symbols.front();

	switch(symbolAny.type()) {
	case Gringo::SymbolType::Num:
	{
	return TypeAnnotation(TypePrimitive::Num);
	}

	case Gringo::SymbolType::Str:
	{
	return TypeAnnotation(TypePrimitive::String);
	}

	case Gringo::SymbolType::Fun:
	{
	map<string, list < Gringo::Symbol>> fnGroups;

	for(const Gringo::Symbol& row : symbols) {
	fnGroups[row.name().c_str()].push_back(row);
	}

	TypeAnnotation resultT;
	resultT.__operands.reserve(fnGroups.size());
	resultT.bindings.reserve(fnGroups.size());

	for(const auto& group : fnGroups) {
	if(!group.second.size()) continue;

	TypeAnnotation variantT = collapseFnGroup(group.second);
	Gringo::Symbol symbolAny = group.second.front();
	string variantName = symbolAny.name().c_str();
	resultT.fields.push_back(variantName);
	resultT.__operands.push_back(variantT);
	}

	resultT.__operator = TypeOperator::VARIANT;
	// if(resultT.__operands.size() == 1) {
	// return resultT.__operands.front();
	// }
	return resultT;
	}

	case Gringo::SymbolType::Inf:
	case Gringo::SymbolType::Special:
	case Gringo::SymbolType::Sup:
	{
	break;
	}
	}

	assert(false);
	return TypeAnnotation();
	}

	ExpandedType
	dereferenceSlaveType(ExpandedType t, const TranscendLayer* transcend) {
	assert(t->__operator == TypeOperator::SLAVE);
	const string& domain = t->__valueCustom;
	StaticModel model = transcend->query(domain);
	if(!model.size()) return ExpandedType(TypeAnnotation());

	std::list<Gringo::Symbol> symbols;
	for(auto row : model) {
	symbols.push_back(row.second);
	}
	return ExpandedType(collapseFnGroup(symbols));
	}

	Expression
	representTransExpression(const Gringo::Symbol& atom, ExpandedType schemaT, TranscendLayer* transcend) {
	switch(schemaT->__operator) {
	case TypeOperator::NONE:
	{
	switch(schemaT->__value) {
	case TypePrimitive::I8:
	case TypePrimitive::I32:
	case TypePrimitive::I64:
	case TypePrimitive::Num:
	case TypePrimitive::Int:
	{
	return Expression(Atom<Number_t>(atom.num()));
	}

	case TypePrimitive::String:
	{
	return Expression(Atom<String_t>(atom.string().c_str()));
	}

	case TypePrimitive::Invalid:
	case TypePrimitive::Bool:
	case TypePrimitive::Float:
	{
	assert(false);
	return Expression();
	}
	}
	break;
	}

	case TypeOperator::SLAVE:
	{
	ExpandedType contentT = dereferenceSlaveType(schemaT, transcend);
	return representTransExpression(atom, contentT, transcend);
	}

	case TypeOperator::VARIANT:
	{
	map<string, int> dictVariants;
	for(size_t variantId = 0; variantId < schemaT->fields.size(); ++variantId) {
	dictVariants.emplace(schemaT->fields.at(variantId), variantId);
	}

	string predicateName = atom.name().c_str();
	assert(dictVariants.count(predicateName));

	size_t predicateId = dictVariants.at(predicateName);
	Expression result(Operator::VARIANT,{});
	result.op = Operator::VARIANT;
	result.setValueDouble(predicateId);

	if(!schemaT->__operands.size()) return result;
	ExpandedType contentT = schemaT->__operands.at(predicateId).__operator == TypeOperator::SLAVE
	? dereferenceSlaveType(ExpandedType(schemaT->__operands.at(predicateId)), transcend)
	: ExpandedType(schemaT->__operands.at(predicateId));

	//edge case, content's type is LIST_NAMED:
	if (contentT->__operator == TypeOperator::LIST_NAMED) {
	result.operands.push_back(representTransExpression(atom, contentT, transcend));

	} else if(!contentT->isValid()) {
	return result;

	} else {
	assert(atom.args().size);
	result.operands.push_back(representTransExpression(atom.args()[0], contentT, transcend));
	}

	return result;
	}

	case TypeOperator::LIST_NAMED:
	{
	const Gringo::SymSpan& operandsRaw = atom.args();
	size_t opCount = operandsRaw.size;
	assert(opCount == schemaT->__operands.size());

	size_t operandId = 0;
	std::vector<Expression> operands;
	operands.reserve(opCount);
	for(const TypeAnnotation operandT : schemaT->__operands) {
	operands.push_back(representTransExpression(operandsRaw[operandId], ExpandedType(operandT), transcend));
	++operandId;
	}

	Expression result(Operator::LIST_NAMED,{});
	result.operands = operands;
	result.type = schemaT;
	return result;
	}

	case TypeOperator::LIST:
	case TypeOperator::CALL:
	case TypeOperator::CUSTOM:
	case TypeOperator::ACCESS:
	case TypeOperator::LINK:
	{
	assert(false);
	return Expression();
	}
	}

	assert(false);
	return Expression();
	}

	}
	} //end of xreate namespace
	\ No newline at end of file
	diff --git a/cpp/src/analysis/interpretation.h b/cpp/src/analysis/interpretation.h
	index 8a806a0..7716eb8 100644
	--- a/cpp/src/analysis/interpretation.h
	+++ b/cpp/src/analysis/interpretation.h
	@@ -1,31 +1,31 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 25, 2018, 3:24 PM
	*
	* \file interpretation.h
	* \brief interpretation
	*/

	#ifndef INTERPRETATION_H
	#define INTERPRETATION_H

	#include "transcendlayer.h"

	namespace xreate{
	namespace interpretation{

	TypeAnnotation collapseColumn(const std::list<Gringo::Symbol>& symbols);
	ExpandedType dereferenceSlaveType(ExpandedType t, const TranscendLayer* transcend);
	-
	Expression representTransExpression(const Gringo::Symbol& atom, ExpandedType schemaT, TranscendLayer* transcend);
	+std::list<Expression> generateAllInstancesInDomain2(const ExpandedType& domainT);

	}
	}
	#endif /* INTERPRETATION_H */

	diff --git a/cpp/src/analysis/typeinference.cpp b/cpp/src/analysis/typeinference.cpp
	index 8d3992c..379739c 100644
	--- a/cpp/src/analysis/typeinference.cpp
	+++ b/cpp/src/analysis/typeinference.cpp
	@@ -1,185 +1,79 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* typeinference.cpp
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on April 16, 2017, 10:13 AM
	*/

	/**
	* \file typeinference.h
	* \brief Type inference analysis
	*/

	#include "typeinference.h"
	#include "llvmlayer.h"

	#include "llvm/IR/Function.h"
	#include "llvm/IR/DerivedTypes.h"
	#include "transcendlayer.h"

	using namespace std;

	namespace xreate{
	namespace typeinference{

	//TODO type conversion:
	//a) automatically expand types int -> bigger int; int -> floating
	//b) detect exact type of `num` based on max used numeral / function type
	//c) warning if need to truncate (allow/dissalow based on annotations)

	llvm::Value*
	doAutomaticTypeConversion(llvm::Value* source, llvm::Type* tyTarget, llvm::IRBuilder<>& builder) {
	if(tyTarget->isIntegerTy() && source->getType()->isIntegerTy()) {
	llvm::IntegerType* tyTargetInt = llvm::dyn_cast<llvm::IntegerType>(tyTarget);
	llvm::IntegerType* tySourceInt = llvm::dyn_cast<llvm::IntegerType>(source->getType());

	if(tyTargetInt->getBitWidth() < tySourceInt->getBitWidth()) {
	return builder.CreateCast(llvm::Instruction::Trunc, source, tyTarget);
	}

	if(tyTargetInt->getBitWidth() > tySourceInt->getBitWidth()) {
	return builder.CreateCast(llvm::Instruction::SExt, source, tyTarget);
	}
	}

	if(source->getType()->isIntegerTy() && tyTarget->isFloatingPointTy()) {
	return builder.CreateCast(llvm::Instruction::SIToFP, source, tyTarget);
	}

	return source;
	}

	ExpandedType
	getType(const Expression& expression, const AST& ast) {
	if(expression.type.isValid()) {
	return ast.expandType(expression.type);
	}

	if(expression.__state == Expression::IDENT) {
	Symbol s = Attachments::get<IdentifierSymbol>(expression);
	return getType(CodeScope::getDefinition(s), ast);
	}

	if(Attachments::exists<TypeInferred>(expression)) {
	return Attachments::get<TypeInferred>(expression);
	}

	if(expression.__state == Expression::NUMBER) {
	return ExpandedType(TypeAnnotation(TypePrimitive::I32));
	}


	assert(false && "Type can't be determined for an expression");
	}

	-TypeAnnotation collapseColumn(const std::list<Gringo::Symbol>& symbols);
	-
	-TypeAnnotation
	-collapseFnGroup(const std::list<Gringo::Symbol>& symbols) {
	- Gringo::Symbol symbolAny = symbols.front();
	- size_t operandsCount = symbolAny.args().size;
	-
	- TypeAnnotation resultT;
	- resultT.__operands.reserve(operandsCount);
	-
	- for(size_t operandId = 0; operandId < operandsCount; ++operandId) {
	- std::list<Gringo::Symbol> column;
	-
	- for(const Gringo::Symbol& row : symbols) {
	- column.push_back(row.args()[operandId]);
	- }
	-
	- TypeAnnotation operandT = collapseColumn(column);
	- resultT.__operands.push_back(operandT);
	- }
	-
	- if(resultT.__operands.size() == 1) {
	- return resultT.__operands.front();
	- }
	-
	- if(resultT.__operands.size() > 1) {
	- resultT.__operator = TypeOperator::LIST_NAMED;
	- return resultT;
	- }
	-
	- return resultT;
	-}
	-
	-TypeAnnotation
	-collapseColumn(const std::list<Gringo::Symbol>& symbols) {
	- TypeAnnotation resultT;
	- if(!symbols.size()) return resultT;
	-
	- Gringo::Symbol symbolAny = symbols.front();
	-
	- switch(symbolAny.type()) {
	- case Gringo::SymbolType::Num:
	- {
	- return TypeAnnotation(TypePrimitive::Num);
	- }
	-
	- case Gringo::SymbolType::Str:
	- {
	- return TypeAnnotation(TypePrimitive::String);
	- }
	-
	- case Gringo::SymbolType::Fun:
	- {
	- map<string, list < Gringo::Symbol>> fnGroups;
	-
	- for(const Gringo::Symbol& row : symbols) {
	- fnGroups[row.name().c_str()].push_back(row);
	- }
	-
	- TypeAnnotation resultT;
	- resultT.__operands.reserve(fnGroups.size());
	- resultT.bindings.reserve(fnGroups.size());
	-
	- for(const auto& group : fnGroups) {
	- if(!group.second.size()) continue;
	-
	- TypeAnnotation variantT = collapseFnGroup(group.second);
	- Gringo::Symbol symbolAny = group.second.front();
	- string variantName = symbolAny.name().c_str();
	- resultT.fields.push_back(variantName);
	- resultT.__operands.push_back(variantT);
	- }
	-
	- resultT.__operator = TypeOperator::VARIANT;
	- if(resultT.__operands.size() == 1) {
	- return resultT.__operands.front();
	- }
	- return resultT;
	- }
	-
	- case Gringo::SymbolType::Inf:
	- case Gringo::SymbolType::Special:
	- case Gringo::SymbolType::Sup:
	- {
	- break;
	- }
	- }
	-
	- assert(false);
	- return TypeAnnotation();
	-}
	-
	-ExpandedType
	-dereferenceSlaveType(ExpandedType t, const TranscendLayer* transcend) {
	- assert(t->__operator == TypeOperator::SLAVE);
	- const string& domain = t->__valueCustom;
	- StaticModel model = transcend->query(domain);
	- if(!model.size()) return ExpandedType(TypeAnnotation());
	-
	- std::list<Gringo::Symbol> symbols;
	- for(auto row : model) {
	- symbols.push_back(row.second);
	- }
	- return ExpandedType(collapseFnGroup(symbols));
	-}
	-
	}
	} //end of namespace xreate::typeinference
	diff --git a/cpp/src/analysis/typeinference.h b/cpp/src/analysis/typeinference.h
	index 500fc17..df6ce78 100644
	--- a/cpp/src/analysis/typeinference.h
	+++ b/cpp/src/analysis/typeinference.h
	@@ -1,37 +1,31 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: typeinference.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on April 16, 2017, 10:17 AM
	*/

	#ifndef TYPEINFERENCE_H
	#define TYPEINFERENCE_H

	#include "ast.h"
	#include "llvm/IR/IRBuilder.h"

	namespace llvm{
	class Value;
	class Type;
	};

	-namespace xreate{
	-class TranscendLayer;
	-};
	-
	namespace xreate{
	namespace typeinference{

	llvm::Value* doAutomaticTypeConversion(llvm::Value* source, llvm::Type* tyTarget, llvm::IRBuilder<>& builder);
	ExpandedType getType(const Expression& expression, const AST& ast);
	-ExpandedType dereferenceSlaveType(ExpandedType t, const TranscendLayer* transcend);
	-
	}
	}//namespace xreate::typeinference

	#endif /* TYPEINFERENCE_H */

	diff --git a/cpp/src/attachments.h b/cpp/src/attachments.h
	index 3b82d43..a9bc42b 100644
	--- a/cpp/src/attachments.h
	+++ b/cpp/src/attachments.h
	@@ -1,202 +1,179 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* File: attachments.h
	* Date: 3/15/15
	*/

	#ifndef _XREATE_ATTACHMENTS_H_
	#define _XREATE_ATTACHMENTS_H_
	#include <unordered_map>
	#include <vector>
	#include <assert.h>
	#include <type_traits>

	namespace xreate
	{
	//Attachments dictionary
	template<class Tag>
	struct AttachmentsDict
	{
	// typedef void Data;
	- // static const unsigned int key (next vacant id - 13);
	+ // static const unsigned int key (next vacant id - 12);

	// Defined attachments:
	//-----------------------------------------------------
	// 1 containers::Implementation
	// 3 interpretation::InterpretationData
	// 5 interpretation::FunctionInterpretationData
	// 6 VariableVersion
	// 7 IdentifierSymbol
	// 8 versions::VersionImposedDependency
	// 9 SymbolAlias
	// 11 TypeInferred
	-// 12 LateBindingT
	};

	template<class Object>
	struct AttachmentsId{
	//static unsigned int getId(const Object& object);
	};


	template<class Data>
	class IAttachmentsContainer{
	protected:
	virtual bool __exists(const unsigned int object)=0;
	virtual Data& __get(const unsigned int object)=0;
	virtual void __put(const unsigned int object, Data data)=0;
	- virtual void __update(const unsigned int object, Data data)=0;

	public:
	template<class Id>
	bool exists(const Id& object){
	unsigned int id = AttachmentsId<Id>::getId(object);

	return __exists(id);
	}

	template<class Id>
	Data& get(const Id& object){
	unsigned int id = AttachmentsId<Id>::getId(object);

	return __get(id);
	}

	template<class Id>
	Data get(const Id& object, const Data& dataDefault){
	unsigned int id = AttachmentsId<Id>::getId(object);

	if (! __exists(id)){
	return dataDefault;
	}

	return __get(id);
	}

	template<class Id>
	void put(const Id& object, Data data){
	unsigned int id = AttachmentsId<Id>::getId(object);

	__put(id, data);
	}

	- template<class Id>
	- void update(const Id& object, Data data){
	- unsigned int id = AttachmentsId<Id>::getId(object);
	-
	- __update(id, data);
	- }
	-
	virtual ~IAttachmentsContainer(){};
	};

	template<class Data>
	class AttachmentsContainerDefault: public IAttachmentsContainer<Data>{
	private:
	std::unordered_map<unsigned int, Data> __data;

	virtual bool __exists(const unsigned int id){
	return __data.count(id);
	}

	virtual Data& __get(const unsigned int id){
	return __data.at(id);
	}

	virtual void __put(const unsigned int id, Data data){
	auto result = __data.emplace(id, data);
	assert(result.second);
	}

	- virtual void __update(const unsigned int id, Data data){
	- assert(__data.count(id));
	- __data.at(id) = data;
	- }
	-
	public:
	std::unordered_map<unsigned int, Data>& getRawStorage() {
	return __data;
	}
	};


	class Attachments{
	private:
	static std::vector<void*> __storage;

	template<class Tag>
	using Data = typename AttachmentsDict<Tag>::Data;

	public:
	template<class Tag, class Id>
	static bool exists(const Id& object) {
	assert(AttachmentsDict<Tag>::key < __storage.size());
	assert(__storage.at(AttachmentsDict<Tag>::key));

	IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
	return self->exists(object);
	}

	template<class Tag, class Id>
	static Data<Tag>& get(const Id& object){
	assert(AttachmentsDict<Tag>::key < __storage.size());
	assert(__storage.at(AttachmentsDict<Tag>::key));

	IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
	return self->get(object);
	}

	template<class Tag, class Id>
	static Data<Tag> get(const Id& object, const Data<Tag>& dataDefault){
	assert(AttachmentsDict<Tag>::key < __storage.size());
	assert(__storage.at(AttachmentsDict<Tag>::key));

	IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
	return self->get(object, dataDefault);
	}

	template<class Tag, class Id>
	static void put(const Id& object, Data<Tag> data){
	assert(AttachmentsDict<Tag>::key < __storage.size());
	assert(__storage.at(AttachmentsDict<Tag>::key));

	IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
	self->put(object, data);
	}

	- template<class Tag, class Id>
	- static void update(const Id& object, Data<Tag> data){
	- assert(AttachmentsDict<Tag>::key < __storage.size());
	- assert(__storage.at(AttachmentsDict<Tag>::key));
	-
	- IAttachmentsContainer<Data<Tag>>* self = reinterpret_cast<IAttachmentsContainer<Data<Tag>>*>(__storage.at(AttachmentsDict<Tag>::key));
	- self->update(object, data);
	- }
	-
	template<class Tag>
	static void init(){
	unsigned int keyStorage = AttachmentsDict<Tag>::key;
	if (keyStorage+1 > __storage.size()){
	__storage.resize(keyStorage + 1, nullptr);
	}

	__storage[keyStorage] = new AttachmentsContainerDefault<Data<Tag>>();
	}

	template<class Tag>
	static void init(IAttachmentsContainer<Data<Tag>>* container){
	unsigned int keyStorage = AttachmentsDict<Tag>::key;
	if (keyStorage+1 > __storage.size()){
	__storage.resize(keyStorage + 1, nullptr);
	}

	__storage[keyStorage] = container;
	}
	};

	}

	#endif //_XREATE_ATTACHMENTS_H_
	diff --git a/cpp/src/aux/latereasoning.cpp b/cpp/src/aux/latereasoning.cpp
	index 8dc3366..c70ef88 100644
	--- a/cpp/src/aux/latereasoning.cpp
	+++ b/cpp/src/aux/latereasoning.cpp
	@@ -1,40 +1,57 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 7, 2018, 6:01 PM
	*
	* \file latereasoning.cpp
	* \brief Late reasoninf support
	*/

	#include "aux/latereasoning.h"
	+#include "analysis/interpretation.h"
	#include "ast.h"

	-namespace xreate {namespace latereasoning {
	+using namespace std;

	-boost::optional<Gringo::Symbol>
	-LateAnnotation::select(const std::list<Expression>& keys) const {
	- for(const auto& entry : guardedSymbols) {
	- const std::list<Expression>& keysExpected = entry.first;
	+namespace xreate{
	+namespace latereasoning{
	+
	+LateAnnotation::LateAnnotation(const Gringo::Symbol& symbolStatic) {
	+ guardedContent.push_back(pair<list<Gringo::Symbol>, Gringo::Symbol>({}, symbolStatic));
	+}

	- auto keysIt = keys.begin();
	+boost::optional<Gringo::Symbol>
	+LateAnnotation::select(const std::list<Expression>& keys, AST* root, TranscendLayer* transcend) const {
	+ for(const auto& entry : guardedContent) {
	+ const std::list<Gringo::Symbol>& guardsExpected = entry.first;
	+ auto keyPSIt = guardKeys.begin();
	+ auto keyActualIt = keys.begin();
	bool result = true;
	- for(const Expression& keyExpected : keysExpected) {
	- if(!(keyExpected == *keysIt)) {
	+ for(const Gringo::Symbol& guardExpectedGS : guardsExpected) {
	+ auto keyS = transcend->unpack(*keyPSIt);
	+ const ExpandedType& keyT = root->getType(CodeScope::getDefinition(keyS));
	+ const ExpandedType& keyTPlain = keyT->__operator == TypeOperator::SLAVE ?
	+ interpretation::dereferenceSlaveType(keyT, transcend)
	+ : keyT;
	+ Expression guardExpectedE = interpretation::representTransExpression(
	+ guardExpectedGS, keyTPlain, transcend);
	+ if(!(guardExpectedE == *keyActualIt)) {
	result = false;
	break;
	}
	- ++keysIt;
	+ ++keyActualIt;
	+ ++keyPSIt;
	}
	if(!result) continue;
	return entry.second;
	}

	return boost::none;
	}

	-}}
	+}
	+}

	diff --git a/cpp/src/aux/latereasoning.h b/cpp/src/aux/latereasoning.h
	index 5eb2f21..a20dbe1 100644
	--- a/cpp/src/aux/latereasoning.h
	+++ b/cpp/src/aux/latereasoning.h
	@@ -1,113 +1,84 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* \file latereasoning.h
	* \brief Late reasoning support
	*
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on June 2, 2018, 1:08 PM
	*/

	#ifndef LATEREASONING_H
	#define LATEREASONING_H

	#include "transcendlayer.h"

	-namespace xreate {
	- struct LateBindingT;
	-
	- template<>
	- struct AttachmentsDict<LateBindingT>{
	- typedef Expression Data;
	- static const unsigned int key = 12;
	- };
	-}
	-
	namespace xreate{ namespace latereasoning{

	struct LateAnnotation{
	- std::list<std::pair<std::list<Expression>, Gringo::Symbol>> guardedSymbols;
	- boost::optional<Gringo::Symbol> select(const std::list<Expression>& keys) const;
	+ LateAnnotation(){}
	+ LateAnnotation(const Gringo::Symbol& symbolStatic);
	+ std::list<std::pair<std::list<Gringo::Symbol>, Gringo::Symbol>> guardedContent;
	+ std::list<SymbolPacked> guardKeys;
	+ boost::optional<Gringo::Symbol> select(const std::list<Expression>& keys, AST* root, TranscendLayer* transcend) const;
	};

	struct LateAnnotationsGroup{
	- std::unordered_map<SymbolNode, LateAnnotation> annotations;
	- std::unordered_map<SymbolNode, std::list<SymbolPacked>> bindings;
	+ std::unordered_map<Gringo::Symbol, LateAnnotation> annotations;
	};

	-//DEBT implement querying as a view/joining iterators without actual data copying
	-//DEBT how to implement late model RESET(invalidate all child models)
	+typedef std::map<Gringo::Symbol, LateAnnotation> LateModel;
	+
	template<class Parent>
	class LateReasoningTranscendDecorator: public Parent{
	public:
	- StaticModel queryLate(const std::string& alias, const SymbolNode& symbol) const{
	- StaticModel result;
	- if(!__modelLate.count(alias)) return StaticModel();
	-
	- const LateAnnotationsGroup& group = __modelLate.at(alias);
	- assert(group.bindings.count(symbol));
	- const std::list<SymbolPacked>& bindings = group.bindings.at(symbol);
	- std::list<Expression>&& keys = findKeys(bindings);
	-
	- const LateAnnotation& annLate = group.annotations.at(symbol);
	- auto ann = annLate.select(keys);
	- if(ann){
	- result.emplace(std::make_pair(alias, *ann));
	- }
	+ const LateAnnotationsGroup& queryLate(const std::string& alias) const{
	+ static LateAnnotationsGroup groupInvalid;
	+ if(!__modelLate.count(alias)) return groupInvalid;

	- return result;
	+ return __modelLate.at(alias);
	}

	protected:
	virtual bool processSolution(Gringo::Model const &model) override{
	const std::string& atomLateStatement = "late";

	for(const Gringo::Symbol& atom: model.atoms(clingo_show_type_atoms)){
	std::string atomName(atom.name().c_str());

	- SymbolPacked aaaa;
	if(atomName == atomLateStatement){
	- //late atom's format: (Symbol, (tuple of keys), (tuple of values), late-annotation)
	- auto atomLate = TranscendLayer::parse<SymbolPacked, std::list<SymbolPacked>, std::list<Expression>, Gringo::Symbol>(atom);
	+ //late atom's format: (Target, (tuple of keys), (tuple of values), late-annotation)
	+ auto atomLate = TranscendLayer::parse<Gringo::Symbol, std::list<SymbolPacked>, std::list<Gringo::Symbol>, Gringo::Symbol>(atom);
	const std::string& atomAlias = std::get<3>(atomLate).name().c_str();
	addLateAtom(atomAlias, std::get<0>(atomLate),
	std::get<3>(atomLate), std::get<1>(atomLate),
	std::get<2>(atomLate));
	}
	}

	return Parent::processSolution(model);
	}

	private:
	std::map<std::string, LateAnnotationsGroup> __modelLate;

	- void addLateAtom(const std::string& alias, const SymbolNode& symbol,
	- const Gringo::Symbol& atom, const std::list<SymbolPacked>& guardKeys,
	- const std::list<Expression>& guardBindings){
	+ void addLateAtom(const std::string& alias, const Gringo::Symbol& annId,
	+ const Gringo::Symbol& content, const std::list<SymbolPacked>& guardKeys,
	+ const std::list<Gringo::Symbol>& guardValues){
	LateAnnotationsGroup& group = __modelLate[alias];
	- if(!group.bindings.count(symbol)){
	- group.bindings.emplace(symbol, guardKeys);
	- }
	-
	- LateAnnotation& annotation = group.annotations[symbol];
	- annotation.guardedSymbols.push_back(std::make_pair(guardBindings, atom));
	- }

	- std::list<Expression> findKeys(const std::list<SymbolPacked>& keys) const{
	- std::list<Expression> result;
	- std::transform(keys.begin(), keys.end(), std::inserter(result, result.end()), [this](const SymbolPacked & key){
	- return Attachments::get<LateBindingT>(Parent::unpack(key));
	- });
	-
	- return result;
	+ LateAnnotation& annotation = group.annotations[annId];
	+ if (annotation.guardedContent.empty()){
	+ annotation.guardKeys = guardKeys;
	+ }
	+ annotation.guardedContent.push_back(std::make_pair(guardValues, content));
	}
	};

	}} // end of xreate::latereasoning

	#endif /* LATEREASONING_H */

	diff --git a/cpp/src/aux/transcend-decorators.h b/cpp/src/aux/transcend-decorators.h
	index 77a04d6..321b66c 100644
	--- a/cpp/src/aux/transcend-decorators.h
	+++ b/cpp/src/aux/transcend-decorators.h
	@@ -1,27 +1,34 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 7, 2018, 6:47 PM
	*
	* \file transcend-decorators.h
	* \brief TranscendLevel decorators management
	*/

	#include "transcendlayer.h"
	#include "aux/latereasoning.h"

	#ifndef TRANSCEND_DECORATORS_H
	#define TRANSCEND_DECORATORS_H

	namespace xreate {
	typedef latereasoning::LateReasoningTranscendDecorator<TranscendLayer>
	DefaultTranscendLayerImpl;
	+
	+ struct LateReasoningTranscendDecoratorTag;
	+
	+ template<>
	+ struct DecoratorsDict<LateReasoningTranscendDecoratorTag>{
	+ typedef latereasoning::LateReasoningTranscendDecorator<TranscendLayer> result;
	+};
	}

	#endif /* TRANSCEND_DECORATORS_H */

	diff --git a/cpp/src/aux/xreatemanager-decorators.cpp b/cpp/src/aux/xreatemanager-decorators.cpp
	index 2b3a9ba..40bf519 100644
	--- a/cpp/src/aux/xreatemanager-decorators.cpp
	+++ b/cpp/src/aux/xreatemanager-decorators.cpp
	@@ -1,72 +1,74 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* xreatemanager-decorators.cpp
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on July 16, 2017, 4:40 PM
	*/

	/**
	* \file xreatemanager-decorators.h
	* \brief \ref xreate::XreateManager decorators to provide various functionality
	*/

	#include "aux/xreatemanager-decorators.h"
	#include "main/Parser.h"
	#include "pass/compilepass.h"
	#include "pass/cfapass.h"
	#include "pass/dfapass.h"
	#include "pass/interpretationpass.h"
	#include "pass/versionspass.h"
	-namespace xreate {
	+namespace xreate{

	void
	-XreateManagerDecoratorBase::prepareCode(std::string&& code){
	- grammar::main::Scanner scanner(reinterpret_cast<const unsigned char*>(code.c_str()), code.size());
	+XreateManagerDecoratorBase::initPasses() { }
	+
	+void
	+XreateManagerDecoratorBase::prepareCode(std::string&& code) {
	+ grammar::main::Scanner scanner(reinterpret_cast<const unsigned char*> (code.c_str()), code.size());
	grammar::main::Parser parser(&scanner);
	parser.Parse();
	assert(!parser.errors->count && "Parser errors");

	PassManager::prepare(parser.root->finalize());
	}

	void
	-XreateManagerDecoratorBase::prepareCode(FILE* code){
	+XreateManagerDecoratorBase::prepareCode(FILE* code) {
	grammar::main::Scanner scanner(code);
	grammar::main::Parser parser(&scanner);
	parser.Parse();
	assert(!parser.errors->count && "Parser errors");

	PassManager::prepare(parser.root->finalize());
	}

	void
	-XreateManagerDecoratorBase::analyse(){
	+XreateManagerDecoratorBase::analyse() {
	CompilePass::prepareQueries(transcend);
	transcend->run();
	}

	void
	-XreateManagerDecoratorFull::initPasses(){
	+XreateManagerDecoratorFull::initPasses() {
	cfa::CFAPass* passCFG = new cfa::CFAPass(this);

	- //TODO is it really DFGPass needs CFGpass?
	- registerPass(new dfa::DFAPass(this), PassId::DFAPass, passCFG);
	+ registerPass(new dfa::DFAPass(this), PassId::DFAPass);
	registerPass(passCFG, PassId::CFAPass);
	- this->registerPass(new interpretation::InterpretationPass(this), PassId::InterpretationPass);
	- this->registerPass(new versions::VersionsPass(this), PassId::VersionsPass);
	+ registerPass(new interpretation::InterpretationPass(this), PassId::InterpretationPass);
	+ registerPass(new versions::VersionsPass(this), PassId::VersionsPass);
	}

	void*
	XreateManagerDecoratorFull::run() {
	std::unique_ptr<CompilePass> compiler(new compilation::CompilePassCustomDecorators<>(this));
	compiler->run();

	llvm->print();
	llvm->initJit();
	return llvm->getFunctionPointer(compiler->getEntryFunction());
	}

	} //namespace xreate
	diff --git a/cpp/src/aux/xreatemanager-decorators.h b/cpp/src/aux/xreatemanager-decorators.h
	index 9dd7a3f..d1cfe71 100644
	--- a/cpp/src/aux/xreatemanager-decorators.h
	+++ b/cpp/src/aux/xreatemanager-decorators.h
	@@ -1,36 +1,38 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: xreatemanager-decorators.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on July 16, 2017, 4:37 PM
	*/

	#ifndef XREATEMANAGER_DECORATORS_H
	#define XREATEMANAGER_DECORATORS_H

	#include "xreatemanager.h"

	-namespace xreate {
	-
	+namespace xreate{
	+
	class XreateManagerDecoratorBase: public details::tier2::XreateManager{
	public:
	- void analyse();
	-
	+ virtual void initPasses() override;
	+ virtual void analyse();
	+ virtual void* run(){};
	+
	public:
	virtual void prepareCode(std::string&& code);
	virtual void prepareCode(FILE* code);
	};

	-class XreateManagerDecoratorFull: public XreateManagerDecoratorBase {
	+class XreateManagerDecoratorFull: public XreateManagerDecoratorBase{
	public:
	- void initPasses() override;
	+ virtual void initPasses() override;
	void* run();
	};

	}

	#endif /* XREATEMANAGER_DECORATORS_H */

	diff --git a/cpp/src/compilation/interpretation-instructions.cpp b/cpp/src/compilation/interpretation-instructions.cpp
	index 97c2634..4b0da50 100644
	--- a/cpp/src/compilation/interpretation-instructions.cpp
	+++ b/cpp/src/compilation/interpretation-instructions.cpp
	@@ -1,167 +1,61 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 15, 2018, 5:32 PM
	*
	*/

	#include "compilation/interpretation-instructions.h"
	-#include "analysis/typeinference.h"
	+#include "analysis/interpretation.h"
	#include "transcendlayer.h"
	#include "targets.h"

	using namespace std;

	namespace xreate{
	namespace interpretation{

	-Expression
	-IntrinsicQueryInstruction::representTransExpression(const Gringo::Symbol& atom, ExpandedType schemaT) {
	- TranscendLayer* transcend = static_cast<TargetInterpretation*> (__scope->function->man)->pass->man->transcend;
	-
	- switch(schemaT->__operator) {
	- case TypeOperator::NONE:
	- {
	- switch(schemaT->__value) {
	- case TypePrimitive::I8:
	- case TypePrimitive::I32:
	- case TypePrimitive::I64:
	- case TypePrimitive::Num:
	- case TypePrimitive::Int:
	- {
	- return Expression(Atom<Number_t>(atom.num()));
	- }
	-
	- case TypePrimitive::String:
	- {
	- return Expression(Atom<String_t>(atom.string().c_str()));
	- }
	-
	- case TypePrimitive::Invalid:
	- case TypePrimitive::Bool:
	- case TypePrimitive::Float:
	- {
	- assert(false);
	- return Expression();
	- }
	- }
	- break;
	- }
	-
	- case TypeOperator::SLAVE:
	- {
	- ExpandedType contentT = typeinference::dereferenceSlaveType(schemaT, transcend);
	- return representTransExpression(atom, contentT);
	- }
	-
	- case TypeOperator::VARIANT:
	- {
	- map<string, int> dictVariants;
	- for(size_t variantId = 0; variantId < schemaT->fields.size(); ++variantId) {
	- dictVariants.emplace(schemaT->fields.at(variantId), variantId);
	- }
	-
	- string predicateName = atom.name().c_str();
	- assert(dictVariants.count(predicateName));
	-
	- size_t predicateId = dictVariants.at(predicateName);
	- Expression result(Operator::VARIANT,{});
	- result.op = Operator::VARIANT;
	- result.setValueDouble(predicateId);
	-
	- if(!schemaT->__operands.size()) return result;
	- ExpandedType contentT = schemaT->__operands.at(0).__operator == TypeOperator::SLAVE
	- ? typeinference::dereferenceSlaveType(ExpandedType(schemaT->__operands.at(0)), transcend)
	- : ExpandedType(schemaT->__operands.at(0));
	-
	- //edge case, content's type is LIST_NAMED:
	- if (contentT->__operator == TypeOperator::LIST_NAMED) {
	- result.operands.push_back(representTransExpression(atom, contentT));
	-
	- } else {
	- assert(atom.args().size);
	- result.operands.push_back(representTransExpression(atom.args()[0], contentT));
	- }
	-
	- return result;
	- }
	-
	- case TypeOperator::LIST_NAMED:
	- {
	- const Gringo::SymSpan& operandsRaw = atom.args();
	- size_t opCount = operandsRaw.size;
	- assert(opCount == schemaT->__operands.size());
	-
	- size_t operandId = 0;
	- std::vector<Expression> operands;
	- operands.reserve(opCount);
	- for(const TypeAnnotation operandT : schemaT->__operands) {
	- operands.push_back(representTransExpression(operandsRaw[operandId], ExpandedType(operandT)));
	- ++operandId;
	- }
	-
	- Expression result(Operator::LIST_NAMED,{});
	- result.operands = operands;
	- result.type = schemaT;
	- return result;
	- }
	-
	- case TypeOperator::LIST:
	- case TypeOperator::CALL:
	- case TypeOperator::CUSTOM:
	- case TypeOperator::ACCESS:
	- case TypeOperator::LINK:
	- {
	- assert(false);
	- return Expression();
	- }
	- }
	-
	- assert(false);
	- return Expression();
	-}
	-
	Expression
	IntrinsicQueryInstruction::process(const Expression& expression) {
	AST* ast = static_cast<TargetInterpretation*> (__scope->function->man)->ast;
	TranscendLayer* transcend = static_cast<TargetInterpretation*> (__scope->function->man)->pass->man->transcend;
	InterpretationFunction* function = static_cast<InterpretationFunction*> (__scope->function);

	ExpandedType targetT = ast->expandType(expression.type);
	assert(expression.operands.size() == 1);
	assert(expression.operands.front().__state == Expression::STRING);
	assert(targetT->__operator == TypeOperator::LIST);

	std::string namePredicate = expression.operands.front().getValueString();
	StaticModel model = (static_cast<TargetInterpretation*> (function->man))->pass->man->transcend->query(namePredicate);

	Expression result(Operator::LIST,{});
	result.operands.reserve(model.size());

	ExpandedType elementT = targetT->__operands.at(0).__operator == TypeOperator::SLAVE
	- ? typeinference::dereferenceSlaveType(ExpandedType(targetT->__operands.at(0)), transcend)
	+ ? dereferenceSlaveType(ExpandedType(targetT->__operands.at(0)), transcend)
	: ExpandedType(targetT->__operands.at(0));

	if(model.size()) {
	if (elementT->__operator == TypeOperator::LIST_NAMED) {
	//edge case, content's type is LIST_NAMED:
	for(const auto& row : model) {
	- result.operands.push_back(representTransExpression(row.second, elementT));
	+ result.operands.push_back(representTransExpression(row.second, elementT, transcend));
	}
	} else {
	for (const auto& row : model) {
	assert(row.second.args().size);
	- result.operands.push_back(representTransExpression(row.second.args()[0], elementT));
	+ result.operands.push_back(representTransExpression(row.second.args()[0], elementT, transcend));
	}
	}
	}

	return result;
	}
	}
	} //end of xreate::interpretation
	\ No newline at end of file
	diff --git a/cpp/src/compilation/interpretation-instructions.h b/cpp/src/compilation/interpretation-instructions.h
	index 2ff6c8c..9f1c0a5 100644
	--- a/cpp/src/compilation/interpretation-instructions.h
	+++ b/cpp/src/compilation/interpretation-instructions.h
	@@ -1,39 +1,38 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 15, 2018, 5:28 PM
	*
	* \file interpretation-instructions.h
	* \brief Additional intepretation statements
	*/

	#ifndef INTERPRETATION_INSTRUCTIONS_H
	#define INTERPRETATION_INSTRUCTIONS_H

	#include "compilation/targetinterpretation.h"
	#include "ast.h"

	namespace xreate{
	namespace interpretation{

	class IntrinsicQueryInstruction{
	public:

	IntrinsicQueryInstruction(InterpretationScope* scope): __scope(scope){ }
	Expression process(const Expression& expression);

	private:
	InterpretationScope* __scope;
	- Expression representTransExpression(const Gringo::Symbol& atom, ExpandedType schemaT);
	};

	}
	} //end of xreate::interpretation

	#endif /* INTERPRETATION_INSTRUCTIONS_H */

	diff --git a/cpp/src/compilation/latereasoning.cpp b/cpp/src/compilation/latereasoning.cpp
	index e62201f..34e8882 100644
	--- a/cpp/src/compilation/latereasoning.cpp
	+++ b/cpp/src/compilation/latereasoning.cpp
	@@ -1,79 +1,166 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* latereasoning.cpp
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on May 26, 2018, 3:54 PM
	*/

	#include "compilation/latereasoning.h"
	-#include "aux/latereasoning.h"
	+//#include "aux/latereasoning.h"
	#include "compilation/scopedecorators.h"
	-#include "analysis/typeinference.h"
	+#include "analysis/interpretation.h"
	+#include "compilation/targetinterpretation.h"
	+
	#include <vector>

	+using namespace xreate::interpretation;
	using namespace xreate::compilation;
	using namespace std;

	-namespace xreate{ namespace latereasoning {
	+namespace xreate{
	+namespace latereasoning{
	+
	+#define HINT(x) (hint.empty()? x : hint)

	llvm::Value*
	-LateReasoningCompiler::compile(const Expression& expr, const std::string& identHint){
	- #define HINT(x) (identHint.empty()? x : identHint)
	+LateReasoningCompiler::processSwitchLateStatement(const Expression& expr, const std::string& hint) {
	+ AST* root = __context.pass->man->root;
	+ LLVMLayer* llvm = __context.pass->man->llvm;

	- LLVMLayer* llvm = context.pass->man->llvm;
	- compilation::ICodeScopeUnit* scope = context.scope;
	- AST* root = context.pass->man->root;
	- llvm::IRBuilder<>& builder = llvm->builder;
	- compilation::IFunctionUnit* function = context.function;
	- llvm::Type* typI8= llvm::Type::getInt8Ty(llvm->llvmContext);
	CodeScope* scopeBody = expr.blocks.front();
	Symbol guardS = Symbol{scopeBody->getSymbol(expr.bindings.front()), scopeBody};
	+ const ExpandedType& guardT = root->getType(expr.operands.at(0));
	+ const ExpandedType& guardTPlain = interpretation::dereferenceSlaveType(guardT, __context.pass->man->transcend);
	+
	+ llvm::Value * guardRaw = __context.scope->process(expr.operands.at(0));
	+ llvm::Type* instructionT = llvm->toLLVMType(root->getType(expr));

	- const ExpandedType& conditionT = root->getType(expr.operands.at(0));
	- const ExpandedType& conditionTPlain = typeinference::dereferenceSlaveType(conditionT, context.pass->man->transcend);
	- const int countVariants = conditionTPlain->fields.size();
	- assert(countVariants);
	+ return compileExpand(guardS, guardRaw, guardTPlain, instructionT, hint, [this, scopeBody]() {
	+ ICodeScopeUnit* bodyUnit = this->__context.function->getScopeUnit(scopeBody);
	+ bodyUnit->reset();
	+ return this->__context.function->getScopeUnit(scopeBody)->compile();
	+ });
	+}

	- llvm::Value * conditionRaw = scope->process(expr.operands.at(0));
	- llvm::Value* variantRaw = builder.CreateExtractValue(conditionRaw, llvm::ArrayRef<unsigned>({0}));
	- llvm::SwitchInst * instructionSwitch = builder.CreateSwitch(variantRaw, nullptr, countVariants);
	+llvm::Value*
	+LateReasoningCompiler::compileAutoExpand(const LateAnnotation& annotation,
	+ llvm::Type* resultT,
	+ const std::string& hint,
	+ Handler handler) {
	+ TranscendLayer* transcend = __context.pass->man->transcend;
	+ InterpretationFunction* functionI12n =
	+ dynamic_cast<InterpretationFunction*> (__scopeI12n->function);
	+ AST* root = __context.pass->man->root;

	- llvm::BasicBlock *blockEpilog = llvm::BasicBlock::Create(llvm->llvmContext, "switchLateAfter", function->raw);
	- builder.SetInsertPoint(blockEpilog);
	- llvm::Type* exprSwitchType = llvm->toLLVMType(root->getType(expr));
	- llvm::PHINode *ret = builder.CreatePHI(exprSwitchType, countVariants, HINT("switchLate"));
	- llvm::BasicBlock* blockDefault = nullptr;
	+ const std::list<SymbolPacked>& guardKeys = annotation.guardKeys;
	+ std::list<Symbol> notfound_guardKeys;
	+ for(const SymbolPacked key : guardKeys) {
	+ const Symbol& keyS = transcend->unpack(key);
	+ InterpretationScope* keyScope = functionI12n->getScope(keyS.scope);
	+ if (!keyScope->isBindingDefined(keyS.identifier)) {
	+ notfound_guardKeys.push_back(keyS);
	+ }
	+ }
	+
	+ typedef std::function < llvm::Value * () > Compiler;
	+ Compiler programInit([handler, annotation, this]() {
	+ std::list<Expression>&& values = findKeys(annotation.guardKeys);
	+ auto answer = annotation.select(values, __context.pass->man->root, __context.pass->man->transcend);
	+ assert(answer);
	+ return handler(*answer);
	+ });
	+
	+ Compiler aggregate = std::accumulate(notfound_guardKeys.begin(), notfound_guardKeys.end(),
	+ programInit,
	+ [this, root, transcend, &resultT, hint](Compiler program, const Symbol & key) {
	+ const ExpandedType& keyT = root->getType(CodeScope::getDefinition(key));
	+ const ExpandedType& keyTPlain = keyT->__operator == TypeOperator::SLAVE?
	+ interpretation::dereferenceSlaveType(keyT, transcend)
	+ : keyT;
	+
	+ return Compiler([this, key, keyTPlain, resultT, hint, program](){
	+ llvm::Value * keyRaw = __context.scope->processSymbol(key);
	+ return compileExpand(key, keyRaw, keyTPlain, resultT, hint, program);
	+ });
	+ }
	+ );
	+
	+ return aggregate();
	+}
	+
	+llvm::Value*
	+LateReasoningCompiler::compileExpand(const Symbol& keyS,
	+ llvm::Value* keyRaw,
	+ const ExpandedType& domainT,
	+ llvm::Type* resultT,
	+ const std::string& hint,
	+ CompilerHandler compilerBody) {

	- bool flagFirstPass = true;
	- for (int variantId = 0; variantId<countVariants; ++variantId){
	- //Pass information to the late model
	- flagFirstPass?
	- Attachments::put<LateBindingT>(guardS, Expression(Operator::CALL, {Expression(Atom<Identifier_t>(string(conditionTPlain->fields.at(variantId))))}))
	- : Attachments::update<LateBindingT>(guardS, Expression(Operator::CALL, {Expression(Atom<Identifier_t>(string(conditionTPlain->fields.at(variantId))))}));
	- flagFirstPass = false;
	+ assert(domainT->__operator == TypeOperator::VARIANT);
	+ std::list<Expression> domInstancesList = generateAllInstancesInDomain2(domainT);
	+ std::vector<Expression> domInstances(domInstancesList.begin(), domInstancesList.end());
	+ const int countInstances = domInstances.size();
	+ assert(countInstances);

	+ LLVMLayer* llvm = __context.pass->man->llvm;
	+ llvm::IRBuilder<>& builder = llvm->builder;
	+ compilation::IFunctionUnit* function = __context.function;
	+ llvm::Type* typI8 = llvm::Type::getInt8Ty(llvm->llvmContext);
	+ InterpretationFunction* functionI12n = dynamic_cast<InterpretationFunction*> (__scopeI12n->function);
	+
	+ llvm::Value* keyVariantRaw = builder.CreateExtractValue(keyRaw, llvm::ArrayRef<unsigned>({0}));
	+ llvm::SwitchInst* instructionSwitch = builder.CreateSwitch(keyVariantRaw, nullptr, countInstances);
	+
	+ llvm::BasicBlock *blockEpilog = llvm::BasicBlock::Create(
	+ llvm->llvmContext, "epilog", function->raw);
	+
	+ builder.SetInsertPoint(blockEpilog);
	+ llvm::PHINode *ret = builder.CreatePHI(resultT, countInstances, HINT("reverse"));
	+ llvm::BasicBlock* blockDefault = nullptr;
	+
	+ for (int instanceId = 0; instanceId < countInstances; ++instanceId) {
	llvm::BasicBlock *blockCase = llvm::BasicBlock::Create(
	llvm->llvmContext,
	- "case" + std::to_string(variantId),
	+ "case" + std::to_string(instanceId),
	function->raw);
	- if(variantId == 0) blockDefault = blockCase;
	+ if(instanceId == 0) blockDefault = blockCase;
	builder.SetInsertPoint(blockCase);
	- auto scopeBody = Decorators<CachedScopeDecoratorTag>::getInterface<>(
	- function->getScopeUnit(expr.blocks.back()));
	- scopeBody->reset();

	- llvm::Value* resultCase = scopeBody->compile();
	+ //assign bindings
	+
	+ const Expression& instanceE = domInstances.at(instanceId);
	+ functionI12n->getScope(keyS.scope)->overrideBindings({
	+ {instanceE, keyS.identifier}
	+ });
	+
	+ //invoke further compilation handler
	+ llvm::Value* resultCase = compilerBody();
	+
	ret->addIncoming(resultCase, builder.GetInsertBlock());
	- instructionSwitch->addCase(llvm::dyn_cast<llvm::ConstantInt>(llvm::ConstantInt::get(typI8, variantId)), blockCase);
	+ instructionSwitch->addCase(llvm::dyn_cast<llvm::ConstantInt>(llvm::ConstantInt::get(typI8, instanceId)), blockCase);
	builder.CreateBr(blockEpilog);
	}

	instructionSwitch->setDefaultDest(blockDefault);
	builder.SetInsertPoint(blockEpilog);
	return ret;
	}
	-}}
	\ No newline at end of file
	+
	+std::list<Expression>
	+LateReasoningCompiler::findKeys(const std::list<SymbolPacked>& keys) {
	+ TranscendLayer* transcend = __context.pass->man->transcend;
	+ std::list<Expression> result;
	+
	+ std::transform(keys.begin(), keys.end(), std::inserter(result, result.end()),
	+ [this, transcend](const SymbolPacked & key) {
	+ return __scopeI12n->processSymbol(transcend->unpack(key));
	+ });
	+
	+ return result;
	+}
	+}
	+}
	\ No newline at end of file
	diff --git a/cpp/src/compilation/latereasoning.h b/cpp/src/compilation/latereasoning.h
	index 84adc4f..a065fde 100644
	--- a/cpp/src/compilation/latereasoning.h
	+++ b/cpp/src/compilation/latereasoning.h
	@@ -1,33 +1,68 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: latereasoning.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on May 26, 2018, 3:44 PM
	*/

	#ifndef CMPLLATEREASONING_H
	#define CMPLLATEREASONING_H

	#include "ast.h"
	+#include "aux/latereasoning.h"
	#include "pass/compilepass.h"
	#include "llvmlayer.h"
	+#include "transcendlayer.h"

	-namespace xreate{ namespace latereasoning {
	+namespace xreate{
	+namespace interpretation{
	+class InterpretationScope;
	+}
	+}
	+
	+namespace llvm{
	+class Value;
	+}
	+
	+namespace xreate{
	+namespace latereasoning{
	+
	+typedef std::function<llvm::Value*() > CompilerHandler;
	+typedef std::function<llvm::Value*(const Gringo::Symbol&) > Handler;
	+
	+class LateReasoningCompiler{
	+public:
	+ LateReasoningCompiler(interpretation::InterpretationScope* scope,
	+ compilation::Context ctx)
	+ : __context(ctx), __scopeI12n(scope) {}
	+
	+ llvm::Value* processSwitchLateStatement(const Expression& expr,
	+ const std::string& identHint);
	+ llvm::Value* compileAutoExpand(const LateAnnotation& annotation,
	+ llvm::Type* resultT,
	+ const std::string& hint,
	+ Handler handler);

	-class LateReasoningCompiler {
	-public:
	- LateReasoningCompiler(compilation::Context ctx): context(ctx){}
	- llvm::Value* compile(const Expression& expr, const std::string& identHint);
	-
	private:
	- compilation::Context context;
	+ compilation::Context __context;
	+ interpretation::InterpretationScope* __scopeI12n;
	+
	+ llvm::Value* compileExpand(const Symbol& keyS,
	+ llvm::Value* keyRaw,
	+ const ExpandedType& domainT,
	+ llvm::Type* resultT,
	+ const std::string& hint,
	+ CompilerHandler compilerBody);
	+
	+ std::list<Expression> findKeys(const std::list<SymbolPacked>& keys);
	};

	-}}
	+}
	+}

	#endif /* CMPLLATEREASONING_H */

	diff --git a/cpp/src/compilation/latex.cpp b/cpp/src/compilation/latex.cpp
	index 4386fe7..b853fd8 100644
	--- a/cpp/src/compilation/latex.cpp
	+++ b/cpp/src/compilation/latex.cpp
	@@ -1,36 +1,36 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 23, 2018, 4:33 PM
	*
	* \file latex.cpp
	* \brief latex
	*/

	#include "compilation/latex.h"
	#include "analysis/interpretation.h"
	#include "llvmlayer.h"

	namespace xreate{
	namespace latex{

	ExpandedType
	getSubjectDomain(const std::string& subject, LatexQuery* query){
	std::list<Gringo::Symbol>&& column = query->getSubjectDomain(subject);
	return ExpandedType(interpretation::collapseColumn(column));
	}

	llvm::Value*
	-ExtraArgsCallStatement::operator() (std::vector<llvm::Value *>&& args, const std::string& hintDecl) {
	+ExtraArgsFnInvocation::operator() (std::vector<llvm::Value *>&& args, const std::string& hintDecl) {
	args.insert(args.end(), __argsLatex.begin(), __argsLatex.end());

	return __parent->operator ()(std::move(args), hintDecl);
	}

	}
	}
	\ No newline at end of file
	diff --git a/cpp/src/compilation/latex.h b/cpp/src/compilation/latex.h
	index 8de19d2..e5c7fc1 100644
	--- a/cpp/src/compilation/latex.h
	+++ b/cpp/src/compilation/latex.h
	@@ -1,128 +1,135 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 23, 2018, 2:51 PM
	*
	* \file latex.h
	* \brief latex
	*/

	#ifndef LATEX_H
	#define LATEX_H

	+#include "compilation/latereasoning.h"
	#include "compilation/interpretation-instructions.h"
	#include "query/latex.h"
	#include "pass/compilepass.h"
	#include "analysis/interpretation.h"

	namespace xreate{
	namespace latex{

	ExpandedType
	getSubjectDomain(const std::string& subject, LatexQuery* query);

	/** \brief Latex(Late Context)-enabled decorator for IFunctionUnit
	* \extends IFunctionUnit
	*/
	template<class Parent>
	class LatexBruteFunctionDecorator: public Parent{
	public:

	LatexBruteFunctionDecorator(ManagedFnPtr f, CompilePass* p)
	: Parent(f, p){
	__query = reinterpret_cast<LatexQuery*> (Parent::pass->man->transcend->getQuery(QueryId::LatexQuery));
	}

	protected:

	std::vector<llvm::Type*>
	prepareSignature(){
	std::vector<llvm::Type*>&& signature = Parent::prepareSignature();

	const Demand& demand = __query->getFnDemand(Parent::function->getName());
	signature.reserve(signature.size() + demand.size());

	for(const std::string& subject: demand){
	- llvm::Type* subjectTRaw = Parent::pass->man->llvm->toLLVMType(
	- getSubjectDomain(subject, __query));
	+ const ExpandedType& subjectT = getSubjectDomain(subject, __query);
	+ Expression bindingE;
	+ bindingE.type = subjectT;
	+ std::string argCaption = std::string("latex_") + subject;
	+ Parent::function->addBinding(Atom<Identifier_t>(std::string(argCaption)), std::move(bindingE));
	+
	+ llvm::Type* subjectTRaw = Parent::pass->man->llvm->toLLVMType(subjectT);
	signature.push_back(subjectTRaw);
	}

	return signature;
	}

	- llvm::Function::arg_iterator
	- prepareBindings(){
	- llvm::Function::arg_iterator fargsI = Parent::prepareBindings();
	-
	- const Demand& demand = __query->getFnDemand(Parent::function->getName());
	- for(const std::string& subject: demand){
	- std::string argTitle = std::string("latex_") + subject;
	- fargsI->setName(argTitle);
	- ++fargsI;
	- }
	-
	- return fargsI;
	- }
	-
	public:
	LatexQuery* __query;
	};

	-class ExtraArgsCallStatement: public compilation::ICallStatement{
	+class ExtraArgsFnInvocation: public compilation::IFnInvocation{
	public:

	- ExtraArgsCallStatement(std::vector<llvm::Value> argsLatex, compilation::ICallStatement parent)
	+ ExtraArgsFnInvocation(std::vector<llvm::Value> argsLatex, compilation::IFnInvocation parent)
	: __argsLatex(argsLatex), __parent(parent){ }

	llvm::Value* operator()(std::vector<llvm::Value *>&& args, const std::string& hintDecl = "");

	private:
	std::vector<llvm::Value*> __argsLatex;
	- compilation::ICallStatement* __parent;
	+ compilation::IFnInvocation* __parent;
	};

	template<class Parent>
	class LatexBruteScopeDecorator: public Parent{
	public:

	LatexBruteScopeDecorator(const CodeScope * const codeScope, compilation::IFunctionUnit* f, CompilePass* compilePass)
	: Parent(codeScope, f, compilePass){ }

	- compilation::ICallStatement*
	+ compilation::IFnInvocation*
	findFunction(const Expression& opCall){
	- compilation::ICallStatement* stmntCallParent = Parent::findFunction(opCall);
	+ compilation::IFnInvocation* invocDefault = Parent::findFunction(opCall);
	const std::string& calleeName = opCall.getValueString();
	LatexQuery* query = reinterpret_cast<LatexQuery*> (Parent::pass->man->transcend->getQuery(QueryId::LatexQuery));

	const Demand& fnCalleeDemand = query->getFnDemand(calleeName);
	- if(!fnCalleeDemand.size()) return stmntCallParent;
	+ if(!fnCalleeDemand.size()) return invocDefault;

	//prepare latex arguments
	std::vector<llvm::Value*> argsLatex;
	argsLatex.reserve(fnCalleeDemand.size());

	for(const std::string& subject: fnCalleeDemand){
	ExpandedType subjectT = getSubjectDomain(subject, query);
	-
	- Gringo::Symbol decision = query->getDecision(subject, Parent::scope);
	- const Expression& decisionE = interpretation::representTransExpression(
	- decision, subjectT, Parent::pass->man->transcend);
	- Attachments::put<TypeInferred>(decisionE, subjectT);
	- argsLatex.push_back(Parent::process(decisionE, subject));
	+ llvm::Type* subjectTRaw = Parent::pass->man->llvm->toLLVMType(subjectT);
	+ const latereasoning::LateAnnotation& decision = query->getDecision(subject, Parent::scope);
	+
	+ compilation::Context ctx{this, Parent::function, Parent::pass};
	+ interpretation::InterpretationScope* scopeIntrpr =
	+ Parent::pass->targetInterpretation->transformContext(ctx);
	+ latereasoning::LateReasoningCompiler* compiler
	+ = new latereasoning::LateReasoningCompiler(scopeIntrpr, ctx);
	+
	+ llvm::Value* subjectRaw = compiler->compileAutoExpand(
	+ decision,
	+ subjectTRaw,
	+ subject,
	+ [&](const Gringo::Symbol & decisionRaw){
	+ const Expression& decisionE = interpretation::representTransExpression(
	+ decisionRaw.args()[2], subjectT, Parent::pass->man->transcend);
	+ Attachments::put<TypeInferred>(decisionE, subjectT);
	+ return Parent::process(decisionE, subject);
	+ });
	+
	+ argsLatex.push_back(subjectRaw);
	}

	- return new ExtraArgsCallStatement(std::move(argsLatex), stmntCallParent);
	+ return new ExtraArgsFnInvocation(std::move(argsLatex), invocDefault);
	}
	};

	}
	} //end of namespace xreate::context

	#endif /* LATEX_H */

	diff --git a/cpp/src/compilation/polymorph.cpp b/cpp/src/compilation/polymorph.cpp
	new file mode 100644
	index 0000000..64bbeb9
	--- /dev/null
	+++ b/cpp/src/compilation/polymorph.cpp
	@@ -0,0 +1,53 @@
	+/*
	+ * This Source Code Form is subject to the terms of the Mozilla Public
	+ * License, v. 2.0. If a copy of the MPL was not distributed with this
	+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
	+ */
	+
	+/*
	+ * Author: pgess <v.melnychenko@xreate.org>
	+ * Created on July 9, 2018, 6:04 PM
	+ *
	+ * \file polymorph.cpp
	+ * \brief polymorph
	+ */
	+
	+#include "compilation/polymorph.h"
	+using namespace std;
	+
	+namespace xreate{
	+namespace polymorph{
	+
	+PolymorphFnInvocation::PolymorphFnInvocation(const latereasoning::LateAnnotation& selector,
	+ std::list<ManagedFnPtr> calleeSpecializations,
	+ CompilePass* pass,
	+ PolymorphQuery* query,
	+ LLVMLayer* llvm,
	+ latereasoning::LateReasoningCompiler* compiler)
	+: __selector(selector), __calleeSpecializations(calleeSpecializations),
	+__pass(pass), __query(query), __llvm(llvm), __compiler(compiler) { }
	+
	+llvm::Value*
	+PolymorphFnInvocation::operator()(std::vector<llvm::Value *>&& args, const std::string& hintDecl) {
	+ std::map<Selector, ManagedFnPtr> dictSelectors;
	+ for(ManagedFnPtr specialization : __calleeSpecializations) {
	+ dictSelectors.emplace(specialization->guard, specialization);
	+ }
	+
	+ compilation::IFunctionUnit* specAny = __pass->getFunctionUnit(__calleeSpecializations.front());
	+ return __compiler->compileAutoExpand(
	+ __selector,
	+ specAny->prepareResult(),
	+ hintDecl,
	+ [this, &args, hintDecl, &dictSelectors](const Gringo::Symbol & selectorRaw) {
	+ const Expression & selectorE = __query->getValue(selectorRaw);
	+ assert(dictSelectors.count(selectorE) && "Inappropriate specialization guard");
	+ compilation::RawFnInvocation* invoc = new compilation::RawFnInvocation(
	+ __pass->getFunctionUnit(dictSelectors.at(selectorE))->compile(),
	+ __llvm);
	+
	+ return invoc->operator()(move(args), hintDecl);
	+ });
	+}
	+}
	+}
	diff --git a/cpp/src/compilation/polymorph.h b/cpp/src/compilation/polymorph.h
	index 7088afe..e49d7bd 100644
	--- a/cpp/src/compilation/polymorph.h
	+++ b/cpp/src/compilation/polymorph.h
	@@ -1,64 +1,95 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: polymorphcompiler.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on October 7, 2017
	*/

	#ifndef POLYMORPHCOMPILER_H
	#define POLYMORPHCOMPILER_H

	#include "pass/compilepass.h"
	#include "query/polymorph.h"
	+#include "compilation/latereasoning.h"

	-namespace xreate { namespace polymorph {
	+namespace xreate{
	+namespace polymorph{
	+
	+typedef Expression Selector;
	+
	+class PolymorphFnInvocation: public compilation::IFnInvocation{
	+public:
	+ PolymorphFnInvocation(const latereasoning::LateAnnotation& selector,
	+ std::list<ManagedFnPtr> calleeSpecializations,
	+ CompilePass* pass,
	+ PolymorphQuery* query,
	+ LLVMLayer* llvm,
	+ latereasoning::LateReasoningCompiler* compiler);
	+
	+ llvm::Value* operator()(std::vector<llvm::Value *>&& args, const std::string& hintDecl = "");
	+
	+private:
	+ latereasoning::LateAnnotation __selector;
	+ std::list<ManagedFnPtr> __calleeSpecializations;
	+
	+ CompilePass* __pass;
	+ PolymorphQuery* __query;
	+ LLVMLayer* __llvm;
	+ latereasoning::LateReasoningCompiler* __compiler;
	+};

	-typedef Expression Guard;
	-
	template <class Parent>
	class PolymorphCodeScopeUnit: public Parent{
	public:
	- PolymorphCodeScopeUnit(const CodeScope* const codeScope, compilation::IFunctionUnit* f, CompilePass* compilePass)
	- : Parent(codeScope, f, compilePass) {}
	+
	+ PolymorphCodeScopeUnit(const CodeScope * const codeScope,
	+ compilation::IFunctionUnit* f,
	+ CompilePass* compilePass)
	+ : Parent(codeScope, f, compilePass){ }

	protected:
	- compilation::ICallStatement* findFunction(const Expression& opCall) override {
	-
	- //Check does invocation require guards
	+
	+ compilation::IFnInvocation*
	+ findFunction(const Expression& opCall) override{
	+// //Check does invocation require guards satisfaction
	const std::string& nameCallee = opCall.getValueString();
	- const std::list<ManagedFnPtr>& specializations = Parent::pass->man->root->getFunctionSpecializations(nameCallee);
	-
	+ const std::list<ManagedFnPtr>& specializations =
	+ Parent::pass->man->root->getFunctionSpecializations(nameCallee);
	+
	//Extern function
	- if (specializations.size() == 0){
	+ if(specializations.size() == 0){
	return Parent::findFunction(opCall);
	}
	-
	+
	//No other specializations. Check if it has no guard
	- if (specializations.size() == 1){
	- if (!specializations.front()->guard.isValid()) {
	+ if(specializations.size() == 1){
	+ if(!specializations.front()->guard.isValid()){
	return Parent::findFunction(opCall);
	}
	}
	-
	+
	//Several specializations
	- PolymorphQuery* query = dynamic_cast<PolymorphQuery*>(Parent::pass->man->transcend->getQuery(QueryId::PolymorphQuery));
	- const Expression& guardSelected = query->get(opCall);
	-
	- std::map<Guard, ManagedFnPtr> indexSpecs;
	- for(ManagedFnPtr specialization: specializations){
	- indexSpecs.emplace(specialization->guard, specialization);
	- }
	-
	- assert(indexSpecs.count(guardSelected) && "Can't find appropriate guard");
	- return new compilation::CallStatementRaw(Parent::pass->getFunctionUnit(indexSpecs.at(guardSelected))->compile(), Parent::pass->man->llvm);
	+ PolymorphQuery* query = dynamic_cast<PolymorphQuery*> (
	+ Parent::pass->man->transcend->getQuery(QueryId::PolymorphQuery));
	+ const latereasoning::LateAnnotation& selector = query->get(opCall);
	+
	+ compilation::Context ctx{this, Parent::function, Parent::pass};
	+ interpretation::InterpretationScope* scopeIntrpr =
	+ Parent::pass->targetInterpretation->transformContext(ctx);
	+ latereasoning::LateReasoningCompiler* compiler
	+ = new latereasoning::LateReasoningCompiler(scopeIntrpr, ctx);
	+
	+ return new PolymorphFnInvocation(selector, specializations, Parent::pass,
	+ query, Parent::pass->man->llvm, compiler);
	}
	};

	-} } //end of xreate::polymorph
	+}
	+} //end of xreate::polymorph

	#endif /* POLYMORPHCOMPILER_H */

	diff --git a/cpp/src/compilation/targetinterpretation.cpp b/cpp/src/compilation/targetinterpretation.cpp
	index 1658d2f..9314a6c 100644
	--- a/cpp/src/compilation/targetinterpretation.cpp
	+++ b/cpp/src/compilation/targetinterpretation.cpp
	@@ -1,593 +1,597 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: targetinterpretation.cpp
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on June 29, 2016, 6:45 PM
	*/

	/**
	* \file targetinterpretation.h
	* \brief Interpretation support. See more [details on Interpretation](/w/concepts/dsl/)
	*/

	#include "compilation/targetinterpretation.h"
	#include "pass/interpretationpass.h"
	#include "analysis/typeinference.h"
	#include "llvmlayer.h"
	#include "compilation/scopedecorators.h"
	#include "compilation/interpretation-instructions.h"

	#include <boost/scoped_ptr.hpp>
	#include <iostream>
	#include <csignal>

	using namespace std;
	using namespace xreate::compilation;

	namespace xreate{ namespace interpretation{

	const Expression EXPRESSION_FALSE = Expression(Atom<Number_t>(0));
	const Expression EXPRESSION_TRUE = Expression(Atom<Number_t>(1));

	CodeScope*
	InterpretationScope::processOperatorIf(const Expression& expression){
	const Expression& exprCondition = process(expression.getOperands()[0]);

	if (exprCondition == EXPRESSION_TRUE){
	return expression.blocks.front();
	}

	return expression.blocks.back();
	}

	CodeScope*
	InterpretationScope::processOperatorSwitch(const Expression& expression) {
	const Expression& exprCondition = process(expression.operands[0]);

	bool flagHasDefault = expression.operands[1].op == Operator::CASE_DEFAULT;

	//TODO check that one and only one case variant is appropriate
	for (size_t size = expression.operands.size(), i= flagHasDefault? 2: 1; i<size; ++i){
	const Expression& exprCase = process(expression.operands[i]);

	if (function->getScope((const CodeScope*) exprCase.blocks.front())->processScope() == exprCondition){
	return exprCase.blocks.back();
	}
	}

	if (flagHasDefault){
	const Expression& exprCaseDefault = expression.operands[1];
	return exprCaseDefault.blocks.front();
	}

	assert(false && "Switch has no appropriate variant");
	return nullptr;
	}

	CodeScope*
	InterpretationScope::processOperatorSwitchVariant(const Expression& expression){
	const Expression& condition = process(expression.operands.at(0));
	assert(condition.op == Operator::VARIANT);
	const string& identCondition = expression.bindings.front();

	Expression opExpected(Atom<Number_t>(condition.getValueDouble()));
	auto itFoundValue = std::find(++expression.operands.begin(), expression.operands.end(), opExpected);
	assert(itFoundValue != expression.operands.end());

	int indexBlock = itFoundValue - expression.operands.begin() -1;
	auto blockFound = expression.blocks.begin();
	std::advance(blockFound, indexBlock);

	InterpretationScope* scopeI12n = function->getScope(*blockFound);

	if(condition.operands.size()){
	const Expression& value=condition.operands.at(0);
	scopeI12n->overrideBindings({
	{value, identCondition}});
	}

	return *blockFound;
	}

	llvm::Value*
	InterpretationScope::compileHybrid(const InterpretationOperator& op, const Expression& expression, const Context& context){
	switch(op){
	case IF_INTERPRET_CONDITION: {
	CodeScope* scopeResult = processOperatorIf(expression);

	llvm::Value* result = context.function->getScopeUnit(scopeResult)->compile();
	return result;
	}

	case SWITCH_INTERPRET_CONDITION:{
	CodeScope* scopeResult = processOperatorSwitch(expression);

	llvm::Value* result = context.function->getScopeUnit(scopeResult)->compile();
	return result;
	}

	case SWITCH_VARIANT: {
	CodeScope* scopeResult = processOperatorSwitchVariant(expression);
	const Expression& condition = expression.operands.at(0);
	const Expression& valueCondition = process(condition);

	const string identCondition = expression.bindings.front();
	auto scopeCompilation = Decorators<CachedScopeDecoratorTag>::getInterface(context.function->getScopeUnit(scopeResult));

	if(valueCondition.operands.size()){
	//override value
	Symbol symbCondition{ScopedSymbol{scopeResult->__identifiers.at(identCondition), versions::VERSION_NONE}, scopeResult};
	scopeCompilation->overrideDeclarations(
	{{symbCondition, Expression(valueCondition.operands.at(0))}}
	);

	//set correct type for binding:
	TypeAnnotation typeVariant = typeinference::getType(condition, *function->man->ast);
	int conditionIndex = valueCondition.getValueDouble();
	ScopedSymbol symbolInternal = scopeResult->getSymbol(identCondition);
	scopeResult->__declarations[symbolInternal].bindType(typeVariant.__operands.at(conditionIndex));
	}

	llvm::Value* result = context.function->getScopeUnit(scopeResult)->compile();
	return result;
	}
	+
	+ case SWITCH_LATE: {
	+ latereasoning::LateReasoningCompiler compiler(this, context);
	+ return compiler.processSwitchLateStatement(expression, "");
	+ }

	case FOLD_INTERPRET_INPUT: {
	//initialization
	const Expression& exprInput = process(expression.getOperands()[0]);
	assert(exprInput.op == Operator::LIST);

	CodeScope* scopeBody = expression.blocks.front();

	const string& nameEl = expression.bindings[0];
	Symbol symbEl{ScopedSymbol{scopeBody->__identifiers.at(nameEl), versions::VERSION_NONE}, scopeBody};
	const std::string& idAccum = expression.bindings[1];
	llvm::Value* rawAccum = context.scope->process(expression.getOperands()[1]);

	InterpretationScope* intrBody = function->getScope(scopeBody);
	auto unitBody = Decorators<CachedScopeDecoratorTag>::getInterface(context.function->getScopeUnit(scopeBody));

	const std::vector<Expression> elementsInput= exprInput.getOperands();

	for(size_t i=0; i<elementsInput.size(); ++i) {
	const Expression& exprElement=elementsInput[i];

	intrBody->overrideBindings({
	{exprElement, nameEl}});
	unitBody->overrideDeclarations({
	{symbEl, exprElement}}); //resets unitBody
	unitBody->bindArg(rawAccum, string(idAccum));

	rawAccum=unitBody->compile();
	}

	return rawAccum;
	}

	/*
	case FOLD_INF_INTERPRET_INOUT{
	}
	*/

	//TODO refactor as InterpretationCallStatement class
	case CALL_INTERPRET_PARTIAL: {
	const std::string &calleeName = expression.getValueString();
	ICodeScopeUnit* scopeUnitSelf = context.scope;
	ManagedFnPtr callee = this->function->man->ast->findFunction(calleeName);
	const FunctionInterpretationData& calleeData = FunctionInterpretationHelper::getSignature(callee);
	std::vector<llvm::Value *> argsActual;
	PIFSignature sig;
	sig.declaration = callee;

	for(size_t no=0, size = expression.operands.size(); no < size; ++no){
	const Expression& op = expression.operands[no];

	if (calleeData.signature.at(no) == INTR_ONLY){
	sig.bindings.push_back(process(op));
	continue;
	}

	argsActual.push_back(scopeUnitSelf->process(op));
	}

	TargetInterpretation* man = dynamic_cast<TargetInterpretation*>(this->function->man);
	PIFunction* pifunction = man->getFunction(move(sig));

	llvm::Function* raw = pifunction->compile();
	- boost::scoped_ptr<CallStatementRaw> statement(new CallStatementRaw(raw, man->pass->man->llvm));
	+ boost::scoped_ptr<RawFnInvocation> statement(new RawFnInvocation(raw, man->pass->man->llvm));
	return (*statement)(move(argsActual));
	}

	default: break;
	}

	assert(false&& "Unknown hybrid operator");
	return nullptr;
	}

	llvm::Value*
	InterpretationScope::compile(const Expression& expression, const Context& context){
	const InterpretationData& data = Attachments::get<InterpretationData>(expression);

	if (data.op != InterpretationOperator::NONE){
	return compileHybrid(data.op, expression, context);
	}

	Expression result = process(expression);
	return context.scope->process(result);
	}

	Expression
	InterpretationScope::process(const Expression& expression) {
	#ifndef NDEBUG
	if (expression.tags.count("bpoint")){
	std::raise(SIGINT);
	}
	#endif

	PassManager* man = (static_cast<TargetInterpretation*> (function->man))->pass->man;

	switch (expression.__state){
	case Expression::INVALID:
	assert(false);

	case Expression::NUMBER:
	case Expression::STRING:
	return expression;

	case Expression::IDENT:{
	Symbol s = Attachments::get<IdentifierSymbol>(expression);
	return Parent::processSymbol(s);
	}

	case Expression::COMPOUND:
	break;

	default: assert(false);
	}

	switch (expression.op) {
	case Operator::EQU: {
	const Expression& left = process(expression.operands[0]);
	const Expression& right = process(expression.operands[1]);

	if (left == right) return EXPRESSION_TRUE;
	return EXPRESSION_FALSE;
	}

	case Operator::NE: {
	const Expression& left = process(expression.operands[0]);
	const Expression& right = process(expression.operands[1]);

	if (left == right) return EXPRESSION_FALSE;
	return EXPRESSION_TRUE;
	}

	case Operator::LOGIC_AND: {
	assert(expression.operands.size() == 1);
	return process (expression.operands[0]);
	}


	// case Operator::LOGIC_OR:
	case Operator::CALL: {
	const std::string &fnName = expression.getValueString();
	ManagedFnPtr fnAst = this->function->man->ast->findFunction(fnName);
	InterpretationFunction* fnUnit = this->function->man->getFunction(fnAst);

	vector<Expression> args;
	args.reserve(expression.getOperands().size());

	for(size_t i=0, size = expression.getOperands().size(); i<size; ++i) {
	args.push_back(process(expression.getOperands()[i]));
	}

	return fnUnit->process(args);
	}

	case Operator::CALL_INTRINSIC: {
	std::string nameFunction = expression.getValueString();

	if(nameFunction=="query"){
	return IntrinsicQueryInstruction(this).process(expression);

	} else if(nameFunction=="query_scope"){
	ScopePacked scopeId = man->transcend->pack(scope);
	Expression result(Operator::VARIANT, {Expression(scopeId)});
	result.setValueDouble(0);
	return result;

	} else {
	assert(false && "Unknown intrinsic");
	}
	}

	case Operator::IF:{
	CodeScope* scopeResult = processOperatorIf(expression);
	return function->getScope(scopeResult)->processScope();
	}

	case Operator::SWITCH: {
	CodeScope* scopeResult = processOperatorSwitch(expression);
	return function->getScope(scopeResult)->processScope();
	}

	case Operator::SWITCH_VARIANT: {
	CodeScope* scopeResult = processOperatorSwitchVariant(expression);
	return function->getScope(scopeResult)->processScope();
	}

	case Operator::VARIANT: {
	if(!expression.operands.size()) return expression;

	Expression variantData = process(expression.operands[0]);
	Expression result{Operator::VARIANT, {variantData}};
	result.setValueDouble(expression.getValueDouble());
	return result;
	}

	case Operator::INDEX: {
	Expression exprData = process(expression.operands[0]);

	for (size_t keyId=1; keyId<expression.operands.size(); ++keyId){
	const Expression& exprKey = process(expression.operands[keyId]);

	if (exprKey.__state == Expression::STRING){
	const string& key = exprKey.getValueString();
	assert(exprData.__indexBindings.count(key));
	size_t idxKey = exprData.__indexBindings.at(key);

	exprData = Expression(exprData.operands.at(idxKey));
	continue;
	}

	if (exprKey.__state == Expression::NUMBER){
	int key = exprKey.getValueDouble();
	exprData = Expression(exprData.operands[key]);
	continue;
	}

	assert(false && "Inappropriate key");
	}

	return exprData;
	}

	case Operator::FOLD: {
	const Expression& exprInput = process(expression.getOperands()[0]);
	const Expression& exprInit = process(expression.getOperands()[1]);

	const std::string& argEl = expression.bindings[0];
	const std::string& argAccum = expression.bindings[1];

	InterpretationScope* body = function->getScope(expression.blocks.front());

	Expression accum = exprInit;
	for(size_t size=exprInput.getOperands().size(), i=0; i<size; ++i){
	body->overrideBindings({
	{exprInput.getOperands()[i], argEl},
	{accum, argAccum}
	});

	accum = body->processScope();
	}

	return accum;
	}

	case Operator::LIST:
	case Operator::LIST_NAMED:
	case Operator::LIST_RANGE:
	{
	Expression result(expression.op,{});
	result.operands.resize(expression.operands.size());
	result.bindings=expression.bindings;
	result.__indexBindings=expression.__indexBindings;

	int keyId=0;
	for(const Expression& opCurrent : expression.operands) {
	result.operands[keyId++]=process(opCurrent);
	}

	return result;
	}

	// case Operator::MAP: {
	// break;
	// }

	default: break;
	}

	return expression;
	}

	InterpretationFunction*
	TargetInterpretation::getFunction(IFunctionUnit* unit){
	if (__dictFunctionsByUnit.count(unit)) {
	return __dictFunctionsByUnit.at(unit);
	}

	InterpretationFunction* f = new InterpretationFunction(unit->function, this);
	__dictFunctionsByUnit.emplace(unit, f);
	assert(__functions.emplace(unit->function.id(), f).second);

	return f;
	}

	PIFunction*
	TargetInterpretation::getFunction(PIFSignature&& sig){
	-
	auto f = __pifunctions.find(sig);
	if (f != __pifunctions.end()){
	return f->second;
	}

	PIFunction* result = new PIFunction(PIFSignature(sig), __pifunctions.size(), this);
	__pifunctions.emplace(move(sig), result);
	assert(__dictFunctionsByUnit.emplace(result->functionUnit, result).second);

	return result;
	}

	InterpretationScope*
	TargetInterpretation::transformContext(const Context& c){
	return this->getFunction(c.function)->getScope(c.scope->scope);
	}

	llvm::Value*
	TargetInterpretation::compile(const Expression& expression, const Context& ctx){
	return transformContext(ctx)->compile(expression, ctx);
	}

	InterpretationFunction::InterpretationFunction(const ManagedFnPtr& function, Target<TargetInterpretation>* target)
	: Function<TargetInterpretation>(function, target)
	{}

	Expression
	InterpretationFunction::process(const std::vector<Expression>& args){
	InterpretationScope* body = getScope(__function->__entry);

	list<pair<Expression, string>> bindings;
	for(size_t i=0, size=args.size(); i<size; ++i) {
	bindings.push_back(make_pair(args.at(i), body->scope->__bindings.at(i)));
	}

	body->overrideBindings(bindings);
	return body->processScope();
	}

	// Partial function interpretation

	typedef BasicFunctionUnit PIFunctionUnitParent;

	class PIFunctionUnit : public PIFunctionUnitParent {
	public:

	PIFunctionUnit(ManagedFnPtr f, std::set<size_t>&& arguments, size_t id, CompilePass* p)
	: PIFunctionUnitParent(f, p), argumentsActual(move(arguments)), __id(id) { }

	protected:
	std::vector<llvm::Type*> prepareArguments(){
	LLVMLayer* llvm = PIFunctionUnitParent::pass->man->llvm;
	AST* ast = PIFunctionUnitParent::pass->man->root;
	CodeScope* entry = PIFunctionUnitParent::function->__entry;
	std::vector<llvm::Type*> signature;

	for(size_t no: argumentsActual){
	VNameId argId = entry->__identifiers.at(entry->__bindings.at(no));
	ScopedSymbol arg{argId, versions::VERSION_NONE};

	signature.push_back(llvm->toLLVMType(ast->expandType(entry->__declarations.at(arg).type)));
	}

	return signature;
	}

	llvm::Function::arg_iterator prepareBindings(){
	CodeScope* entry = PIFunctionUnitParent::function->__entry;
	ICodeScopeUnit* entryCompilation = PIFunctionUnitParent::getScopeUnit(entry);
	llvm::Function::arg_iterator fargsI = PIFunctionUnitParent::raw->arg_begin();

	for(size_t no: argumentsActual){
	ScopedSymbol arg{entry->__identifiers.at(entry->__bindings.at(no)), versions::VERSION_NONE};

	entryCompilation->bindArg(&*fargsI, arg);
	fargsI->setName(entry->__bindings.at(no));
	++fargsI;
	}

	return fargsI;
	}

	virtual std::string prepareName(){
	return PIFunctionUnitParent::prepareName() + "_" + std::to_string(__id);
	}

	private:
	std::set<size_t> argumentsActual;
	size_t __id;
	};

	PIFunction::PIFunction(PIFSignature&& sig, size_t id, TargetInterpretation* target)
	: InterpretationFunction(sig.declaration, target), signatureInstance(move(sig)) {
	const FunctionInterpretationData& functionData = FunctionInterpretationHelper::getSignature(signatureInstance.declaration);

	std::set<size_t> argumentsActual;
	for (size_t no=0, size=functionData.signature.size(); no < size; ++no){
	if (functionData.signature.at(no) != INTR_ONLY){
	argumentsActual.insert(no);
	}
	}

	functionUnit = new PIFunctionUnit(signatureInstance.declaration, move(argumentsActual), id, target->pass);
	CodeScope* entry = signatureInstance.declaration->__entry;
	auto entryUnit = Decorators<CachedScopeDecoratorTag>::getInterface<>(functionUnit->getEntry());
	InterpretationScope* entryIntrp = InterpretationFunction::getScope(entry);

	list<pair<Expression, std::string>> bindingsPartial;
	list<pair<Symbol, Expression>> declsPartial;

	for(size_t no=0, sigNo=0, size=entry->__bindings.size(); no<size; ++no) {
	if(functionData.signature.at(no)==INTR_ONLY){
	bindingsPartial.push_back({signatureInstance.bindings[sigNo], entry->__bindings[no]});

	VNameId argId=entry->__identifiers.at(entry->__bindings[no]);
	Symbol argSymbol{ScopedSymbol
	{argId, versions::VERSION_NONE}, entry};
	declsPartial.push_back({argSymbol, signatureInstance.bindings[sigNo]});
	++sigNo;
	}
	}

	entryIntrp->overrideBindings(bindingsPartial);
	entryUnit->overrideDeclarations(declsPartial);
	}

	llvm::Function*
	PIFunction::compile(){
	llvm::Function* raw = functionUnit->compile();

	return raw;
	}

	bool operator<(const PIFSignature& lhs, const PIFSignature& rhs){
	if (lhs.declaration.id() != rhs.declaration.id()) {
	return lhs.declaration.id() < rhs.declaration.id();
	}

	return lhs.bindings < rhs.bindings;
	}

	bool operator<(const PIFSignature& lhs, PIFunction* const rhs){
	return lhs < rhs->signatureInstance;
	}

	bool operator<(PIFunction* const lhs, const PIFSignature& rhs){
	return lhs->signatureInstance < rhs;
	}

	}}

	/** \class xreate::interpretation::InterpretationFunction
	*
	* Holds list of xreate::interpretation::InterpretationScope 's focused on interpretation of individual code scopes
	*
	* There is particulat subclass PIFunction intended to represent partially interpreted functions
	*\sa TargetInterpretation, [Interpretation Concept](/w/concepts/dfa)
	*/
	/** \class xreate::interpretation::TargetInterpretation
	*
	* Executed during compilation and intented to preprocess eligible parts of code.
	* Established on [Targets Infrastructure](\ref compilation::Target)
	*
	* Holds list of InterpretationFunction / PIFunction to represent interpretation process for individual functions
	*
	* In order to be activated during compilation process there is
	* InterpretationScopeDecorator implementation of ICodeScopeUnit
	* \sa InterpretationPass, compilation::Target, [Interpretation Concept](/w/concepts/dfa)
	*
	*/
	diff --git a/cpp/src/compilation/targetinterpretation.h b/cpp/src/compilation/targetinterpretation.h
	index ba03f34..ad9db20 100644
	--- a/cpp/src/compilation/targetinterpretation.h
	+++ b/cpp/src/compilation/targetinterpretation.h
	@@ -1,129 +1,130 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: targetstatic.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on July 2, 2016, 1:25 PM
	*/

	#ifndef TARGETSTATIC_H
	#define TARGETSTATIC_H

	#include "ast.h"
	#include "pass/compilepass.h"
	#include "compilation/targets.h"
	#include "pass/interpretationpass.h"
	#include "transcendlayer.h"

	namespace xreate{ namespace interpretation{
	class TargetInterpretation;
	class InterpretationScope;
	class InterpretationFunction;
	}}

	namespace xreate{ namespace compilation{
	template <>
	struct TargetInfo<interpretation::TargetInterpretation> {
	typedef Expression Result;
	typedef interpretation::InterpretationScope Scope;
	typedef interpretation::InterpretationFunction Function;
	};
	}}

	namespace xreate{ namespace interpretation{

	/** \brief Encapsulates interpretation of a single Code Scope */
	class InterpretationScope: public compilation::Scope<TargetInterpretation>{
	typedef Scope<TargetInterpretation> Parent;

	public:
	InterpretationScope(const CodeScope* scope, compilation::Function<TargetInterpretation>* f): Parent(scope, f) {}
	Expression process(const Expression& expression) override;

	llvm::Value* compile(const Expression& expression, const compilation::Context& context);

	private:
	llvm::Value* compileHybrid(const InterpretationOperator& op, const Expression& expression, const compilation::Context& context);
	//llvm::Value* compilePartialFnCall(const Expression& expression, const Context& context);

	CodeScope* processOperatorIf(const Expression& expression);
	CodeScope* processOperatorSwitch(const Expression& expression);
	CodeScope* processOperatorSwitchVariant(const Expression& expression);
	};

	/** \brief Encapsulates interpretation of a single %Function */
	class InterpretationFunction: public compilation::Function<TargetInterpretation>{
	public:
	InterpretationFunction(const ManagedFnPtr& function, compilation::Target<TargetInterpretation>* target);
	Expression process(const std::vector<Expression>& args);
	};

	/** \brief Signature of a partially interpreted function */
	struct PIFSignature{
	ManagedFnPtr declaration;
	std::vector<Expression> bindings;
	};

	class PIFunctionUnit;

	/** \brief Partially interpreted function */
	class PIFunction: public InterpretationFunction{
	public:
	PIFunctionUnit* functionUnit;
	PIFSignature signatureInstance;

	PIFunction(PIFSignature&& sig, size_t id, TargetInterpretation* target);
	llvm::Function* compile();
	};

	bool operator<(const PIFSignature& lhs, PIFunction* const rhs);
	bool operator<(PIFunction* const lhs, const PIFSignature& rhs);

	/** \brief Encapsulates actual [Interpretation](/w/concepts/dfa) based on InterpretationPass analysis results */
	class TargetInterpretation: public compilation::Target<TargetInterpretation>{
	public:
	TargetInterpretation(AST* root, CompilePass* passCompilation): Target<TargetInterpretation>(root), pass(passCompilation){}

	//target:
	public:
	InterpretationFunction* getFunction(compilation::IFunctionUnit* unit);
	PIFunction* getFunction(PIFSignature&& sig);

	private:
	std::map<PIFSignature, PIFunction*> __pifunctions;
	std::map<compilation::IFunctionUnit, InterpretationFunction> __dictFunctionsByUnit;

	//self:
	public:
	CompilePass* pass;
	llvm::Value* compile(const Expression& expression, const compilation::Context& ctx);
	-private:
	InterpretationScope* transformContext(const compilation::Context& c);
	+
	+private:
	};

	/**\brief Interpretation-aware Code Scope decorator
	* \extends xreate::compilation::ICodeScopeUnit
	*/
	template<class Parent>
	class InterpretationScopeDecorator: public Parent{
	public:
	InterpretationScopeDecorator(const CodeScope* const codeScope, compilation::IFunctionUnit* f, CompilePass* compilePass): Parent(codeScope, f, compilePass){}

	virtual llvm::Value* process(const Expression& expr, const std::string& hintVarDecl){
	const InterpretationData& data = Attachments::get<InterpretationData>(expr, {ANY, NONE});
	bool flagInterpretationEligible = (data.resolution == INTR_ONLY \|\| data.op != InterpretationOperator::NONE);

	if (flagInterpretationEligible){
	compilation::Context ctx{this, this->function, this->pass};
	return Parent::pass->targetInterpretation->compile(expr, ctx);
	}

	return Parent::process(expr, hintVarDecl);
	}
	};

	}} //end of xreate:: interpretation

	#endif /* TARGETSTATIC_H */
	\ No newline at end of file
	diff --git a/cpp/src/compilation/targets.h b/cpp/src/compilation/targets.h
	index df281ca..0b31ddd 100644
	--- a/cpp/src/compilation/targets.h
	+++ b/cpp/src/compilation/targets.h
	@@ -1,198 +1,213 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: targetabstract.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on July 2, 2016, 1:25 PM
	*/

	/**
	* \file
	* \brief Compilation targets infrastructure
	*/


	#ifndef TARGETABSTRACT_H
	#define TARGETABSTRACT_H

	#include "ast.h"
	#include <boost/optional.hpp>
	#include <map>
	#include <list>

	namespace xreate{ namespace compilation {

	template <typename ConcreteTarget>
	struct TargetInfo{
	//typedef Result
	//typedef Function
	//typedef Scope
	};

	template<typename ConcreteTarget>
	class Function;

	template<typename ConcreteTarget>
	class Target;

	template<typename ConcreteTarget>
	class Scope{
	typedef typename TargetInfo<ConcreteTarget>::Scope Self;

	public:
	const CodeScope* scope;
	Function<ConcreteTarget>* function=0;

	typename TargetInfo<ConcreteTarget>::Result
	processSymbol(const Symbol& s){
	const CodeScope* scope = s.scope;
	Self* self = function->getScope(scope);

	if (self->__bindings.count(s.identifier)) {
	return self->__bindings[s.identifier];
	}

	const Expression& declaration = CodeScope::getDefinition(s, true);
	if (!declaration.isDefined()){
	assert(false); //for bindings there should be result already
	}

	return self->__bindings[s.identifier] = self->process(declaration);
	}

	typename TargetInfo<ConcreteTarget>::Result
	processScope() {
	return process(scope->getBody());
	}

	// typename TargetInfo<ConcreteTarget>::Result
	// processFunction(typename TargetInfo<ConcreteTarget>::Function* fnRemote, const std::vector<typename TargetInfo<ConcreteTarget>::Result>& args){
	// Scope<ConcreteTarget> scopeRemote = fnRemote->getScope(fnRemote->__function->__entry);
	//
	// if (scopeRemote->raw){
	// return scopeRemote->raw;
	// }
	//
	// return fnRemote->process(args);
	// }

	virtual typename TargetInfo<ConcreteTarget>::Result
	process(const Expression& expression)=0;

	Scope(const CodeScope* codeScope, Function<ConcreteTarget>* f)
	: scope(codeScope), function(f) {}

	virtual ~Scope(){}

	void
	overrideBindings(std::list<std::pair<typename TargetInfo<ConcreteTarget>::Result, std::string>> bindings){
	- reset();
	+ std::list<std::pair<typename TargetInfo<ConcreteTarget>::Result, ScopedSymbol>> bindingsSymbols;

	for (auto entry: bindings){
	assert(scope->__identifiers.count(entry.second));
	ScopedSymbol id{scope->__identifiers.at(entry.second), versions::VERSION_NONE};
	-
	- __bindings[id] = entry.first;
	+ bindingsSymbols.push_back(std::make_pair(entry.first, id));
	}
	+
	+ overrideBindings(bindingsSymbols);
	+ }
	+
	+ void
	+ overrideBindings(std::list<std::pair<typename TargetInfo<ConcreteTarget>::Result, ScopedSymbol>> bindings){
	+ reset();
	+
	+ for (auto entry: bindings){
	+ __bindings[entry.second] = entry.first;
	+ }
	+ }
	+
	+ bool
	+ isBindingDefined(const ScopedSymbol& id){
	+ return __bindings.count(id);
	}

	void registerChildScope(std::shared_ptr<Self> scope){
	__childScopes.push_back(scope);
	}

	void reset(){
	__bindings.clear();
	__childScopes.clear();
	}

	protected:
	std::map<ScopedSymbol, typename TargetInfo<ConcreteTarget>::Result> __bindings;
	std::list<std::shared_ptr<Self>> __childScopes;
	};

	template<typename ConcreteTarget>
	class Function{
	typedef typename TargetInfo<ConcreteTarget>::Result Result;
	typedef typename TargetInfo<ConcreteTarget>::Scope ConcreteScope;

	public:
	Function(const ManagedFnPtr& function, Target<ConcreteTarget>* target)
	: man(target), __function(function) {}

	virtual ~Function(){};

	ConcreteScope*
	getScope(const CodeScope* const scope){
	if (__scopes.count(scope)) {
	auto result = __scopes.at(scope).lock();

	if (result){
	return result.get();
	}
	}

	std::shared_ptr<ConcreteScope> unit(new ConcreteScope(scope, this));

	if (scope->__parent != nullptr){
	getScope(scope->__parent)->registerChildScope(unit);

	} else {
	assert(!__entryScope);
	__entryScope = unit;
	}

	if (!__scopes.emplace(scope, unit).second){
	__scopes[scope] = unit;
	}

	return unit.get();
	}

	virtual Result
	process(const std::vector<Result>& args)=0;

	Target<ConcreteTarget>* man=0;
	ManagedFnPtr __function;

	protected:
	std::map<const CodeScope*, std::weak_ptr<ConcreteScope>> __scopes;
	std::shared_ptr<ConcreteScope> __entryScope;
	};

	/** \brief Similar to xreate::IPass */
	template<typename ConcreteTarget>
	class Target {
	typedef typename TargetInfo<ConcreteTarget>::Function ConcreteFunction;

	public:
	Target(AST* root): ast(root){}

	ConcreteFunction*
	getFunction(const ManagedFnPtr& function){
	unsigned int id = function.id();

	if (!__functions.count(id)){
	ConcreteFunction* unit = new ConcreteFunction(function, this);
	__functions.emplace(id, unit);
	return unit;
	}

	return __functions.at(id);
	}

	AST* ast;
	virtual ~Target(){
	for (const auto& entry: __functions){
	delete entry.second;
	}
	}

	protected:
	std::map<unsigned int, ConcreteFunction*> __functions;
	};

	}}

	#endif /* TARGETABSTRACT_H */
	diff --git a/cpp/src/llvmlayer.cpp b/cpp/src/llvmlayer.cpp
	index 288d559..5b59ffa 100644
	--- a/cpp/src/llvmlayer.cpp
	+++ b/cpp/src/llvmlayer.cpp
	@@ -1,241 +1,244 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* llvmlayer.cpp
	*
	* Author: pgess <v.melnychenko@xreate.org>
	*/

	/**
	* \file llvmlayer.h
	* \brief Wrapper over LLVM
	*/

	#include "ast.h"
	#include "llvmlayer.h"
	#include "ExternLayer.h"
	#include "llvm/ExecutionEngine/ExecutionEngine.h"
	#include "llvm/ExecutionEngine/MCJIT.h"
	#include "llvm/Support/TargetSelect.h"
	#include <iostream>
	#include <cmath>

	using namespace llvm;
	using namespace xreate;
	using namespace std;

	LLVMLayer::LLVMLayer(AST* root)
	- : llvmContext(),
	- builder(llvmContext),
	- ast(root),
	- module(new llvm::Module(root->getModuleName(), llvmContext))
	-{
	+: llvmContext(),
	+builder(llvmContext),
	+ast(root),
	+module(new llvm::Module(root->getModuleName(), llvmContext)) {
	layerExtern = new ExternLayer(this);
	layerExtern->init(root);
	}

	void*
	-LLVMLayer::getFunctionPointer(llvm::Function* function){
	+LLVMLayer::getFunctionPointer(llvm::Function* function) {
	uint64_t entryAddr = jit->getFunctionAddress(function->getName().str());
	return (void*) entryAddr;
	}

	void
	-LLVMLayer::initJit(){
	+LLVMLayer::initJit() {
	std::string ErrStr;
	LLVMInitializeNativeTarget();
	llvm::InitializeNativeTargetAsmPrinter();

	llvm::EngineBuilder builder(std::unique_ptr<llvm::Module>(module.release()));
	jit.reset(builder
	.setEngineKind(llvm::EngineKind::JIT)
	.setErrorStr(&ErrStr)
	.setVerifyModules(true)
	.create()
	- );
	+ );
	}

	void
	-LLVMLayer::print(){
	+LLVMLayer::print() {
	llvm::PassManager<llvm::Module> PM;
	PM.addPass(llvm::PrintModulePass(llvm::outs(), "banner"));
	llvm::AnalysisManager<llvm::Module> aman;
	PM.run(*module.get(), aman);
	}

	void
	-LLVMLayer::moveToGarbage(void *o)
	-{
	+LLVMLayer::moveToGarbage(void *o) {
	__garbage.push_back(o);
	}

	llvm::Type*
	-LLVMLayer::
	-toLLVMType(const ExpandedType& ty) const {
	+LLVMLayer::toLLVMType(const ExpandedType& ty) const {
	std::map<int, llvm::StructType*> empty;
	return toLLVMType(ty, empty);
	}

	llvm::Type*
	-LLVMLayer::
	-toLLVMType(const ExpandedType& ty, std::map<int, llvm::StructType*>& conjuctions) const{
	+LLVMLayer::toLLVMType(const ExpandedType& ty, std::map<int, llvm::StructType*>& conjuctions) const {
	TypeAnnotation t = ty;
	- switch (t.__operator)
	+ switch (t.__operator) {
	+ case TypeOperator::LIST:
	{
	- case TypeOperator::LIST:
	- {
	- assert(t.__operands.size()==1);
	+ assert(t.__operands.size() == 1);

	- TypeAnnotation elTy = t.__operands.at(0);
	- return llvm::ArrayType::get(toLLVMType(ExpandedType(move(elTy)), conjuctions), t.__size);
	- }
	+ TypeAnnotation elTy = t.__operands.at(0);
	+ return llvm::ArrayType::get(toLLVMType(ExpandedType(move(elTy)), conjuctions), t.__size);
	+ }

	- case TypeOperator::LIST_NAMED:
	- {
	- std::vector<llvm::Type*> pack_;
	- pack_.reserve(t.__operands.size());
	+ case TypeOperator::LIST_NAMED:
	+ {
	+ std::vector<llvm::Type*> pack_;
	+ pack_.reserve(t.__operands.size());

	- std::transform(t.__operands.begin(), t.__operands.end(), std::inserter(pack_, pack_.end()),
	- [this, &conjuctions](const TypeAnnotation& t){
	- return toLLVMType(ExpandedType(TypeAnnotation(t)), conjuctions);
	- });
	+ std::transform(t.__operands.begin(), t.__operands.end(), std::inserter(pack_, pack_.end()),
	+ [this, &conjuctions](const TypeAnnotation & t) {
	+ return toLLVMType(ExpandedType(TypeAnnotation(t)), conjuctions);
	+ });

	- llvm::ArrayRef<llvm::Type*> pack(pack_);
	+ llvm::ArrayRef<llvm::Type*> pack(pack_);

	- //process recursive types:
	- if (conjuctions.count(t.conjuctionId)) {
	- auto result = conjuctions[t.conjuctionId];
	- result->setBody(pack, false);
	+ //process recursive types:
	+ if (conjuctions.count(t.conjuctionId)) {
	+ auto result = conjuctions[t.conjuctionId];
	+ result->setBody(pack, false);

	- return result;
	- }
	+ return result;
	+ }

	- return llvm::StructType::get(llvmContext, pack, false);
	- };
	+ return llvm::StructType::get(llvmContext, pack, false);
	+ };

	- case TypeOperator::LINK: {
	- llvm::StructType* conjuction = llvm::StructType::create(llvmContext);
	- int id = t.conjuctionId;
	+ case TypeOperator::LINK:
	+ {
	+ llvm::StructType* conjuction = llvm::StructType::create(llvmContext);
	+ int id = t.conjuctionId;

	- conjuctions.emplace(id, conjuction);
	- return conjuction;
	- };
	+ conjuctions.emplace(id, conjuction);
	+ return conjuction;
	+ };

	- case TypeOperator::CALL:
	- {
	- assert(false);
	- };
	-
	- case TypeOperator::CUSTOM:
	- {
	- //Look in extern types
	- clang::QualType qt = layerExtern->lookupType(t.__valueCustom);
	- return layerExtern->toLLVMType(qt);
	- };
	-
	- case TypeOperator::VARIANT: {
	- /* Variant Type Layout:
	- * struct {
	- * id: i8, Holds stored variant id
	- * storage: type of biggest variant
	- * }
	- */
	- uint64_t sizeStorage=0;
	- llvm::Type* typStorageRaw = llvm::Type::getVoidTy(llvmContext);
	- for(const TypeAnnotation& subtype: t.__operands){
	- llvm::Type* subtypeRaw = toLLVMType(ExpandedType(subtype), conjuctions);
	-
	- uint64_t sizeSubtype = module->getDataLayout().getTypeStoreSize(subtypeRaw);
	- if (sizeSubtype > sizeStorage){
	- sizeStorage = sizeSubtype;
	- typStorageRaw = subtypeRaw;
	- }
	- }
	+ case TypeOperator::CALL:
	+ {
	+ assert(false);
	+ };

	- std::vector<llvm::Type*> layout;
	- layout.push_back(llvm::Type::getInt8Ty(llvmContext)); //id
	+ case TypeOperator::CUSTOM:
	+ {
	+ //Look in extern types
	+ clang::QualType qt = layerExtern->lookupType(t.__valueCustom);
	+ return layerExtern->toLLVMType(qt);
	+ };

	- const bool flagHoldsData = sizeStorage > 0;
	- if (flagHoldsData) {
	- layout.push_back(typStorageRaw); //storage
	+ //DEBT omit ID field in case of single variant.
	+ case TypeOperator::VARIANT:
	+ {
	+ /* Variant Type Layout:
	+ * {
	+ * id :: i8, Holds stored variant id
	+ * storage:: type of biggest variant
	+ * }
	+ */
	+ uint64_t sizeStorage = 0;
	+ llvm::Type* typStorageRaw = llvm::Type::getVoidTy(llvmContext);
	+ for(const TypeAnnotation& subtype : t.__operands) {
	+ llvm::Type* subtypeRaw = toLLVMType(ExpandedType(subtype), conjuctions);
	+ if (subtypeRaw->isVoidTy()) continue;
	+
	+ uint64_t sizeSubtype = module->getDataLayout().getTypeStoreSize(subtypeRaw);
	+ if (sizeSubtype > sizeStorage) {
	+ sizeStorage = sizeSubtype;
	+ typStorageRaw = subtypeRaw;
	}
	+ }

	- return llvm::StructType::get(llvmContext, llvm::ArrayRef<llvm::Type*>(layout));
	+ std::vector<llvm::Type*> layout;
	+ layout.push_back(llvm::Type::getInt8Ty(llvmContext)); //id
	+
	+ const bool flagHoldsData = sizeStorage > 0;
	+ if (flagHoldsData) {
	+ layout.push_back(typStorageRaw); //storage
	}

	- case TypeOperator::NONE: {
	- switch (t.__value) {
	- case TypePrimitive::I32:
	- case TypePrimitive::Int:
	- case TypePrimitive::Num:
	- return llvm::Type::getInt32Ty(llvmContext);
	+ return llvm::StructType::get(llvmContext, llvm::ArrayRef<llvm::Type*>(layout));
	+ }
	+
	+ case TypeOperator::NONE:
	+ {
	+ switch (t.__value) {
	+ case TypePrimitive::I32:
	+ case TypePrimitive::Int:
	+ case TypePrimitive::Num:
	+ return llvm::Type::getInt32Ty(llvmContext);

	- case TypePrimitive::Bool:
	- return llvm::Type::getInt1Ty(llvmContext);
	+ case TypePrimitive::Bool:
	+ return llvm::Type::getInt1Ty(llvmContext);

	- case TypePrimitive::I8:
	- return llvm::Type::getInt8Ty(llvmContext);
	+ case TypePrimitive::I8:
	+ return llvm::Type::getInt8Ty(llvmContext);

	- case TypePrimitive::I64:
	- return llvm::Type::getInt64Ty(llvmContext);
	+ case TypePrimitive::I64:
	+ return llvm::Type::getInt64Ty(llvmContext);

	- case TypePrimitive::Float:
	- return llvm::Type::getDoubleTy(llvmContext);
	+ case TypePrimitive::Float:
	+ return llvm::Type::getDoubleTy(llvmContext);

	- case TypePrimitive::String:
	- return llvm::Type::getInt8PtrTy(llvmContext);
	+ case TypePrimitive::String:
	+ return llvm::Type::getInt8PtrTy(llvmContext);

	- default:
	- assert(false);
	- }
	- }
	+ case TypePrimitive::Invalid:
	+ return llvm::Type::getVoidTy(llvmContext);

	default:
	assert(false);
	+ }
	+ }
	+
	+ default:
	+ assert(false);
	}

	assert(false);
	return nullptr;
	}

	-bool TypeUtils::isStruct(const ExpandedType& ty){
	+bool
	+TypeUtils::isStruct(const ExpandedType& ty) {
	const TypeAnnotation& t = ty.get();

	- if (t.__operator==TypeOperator::LIST_NAMED) {
	+ if (t.__operator == TypeOperator::LIST_NAMED) {
	return true;
	}

	if (t.__operator != TypeOperator::CUSTOM) {
	return false;
	}

	clang::QualType tqual = llvm->layerExtern->lookupType(t.__valueCustom);
	const clang::Type * raw = tqual.getTypePtr();

	- // TODO skip ALL the pointers until non-pointer type found
	+ // TODO skip ALL the pointers until non-pointer type found
	if (raw->isStructureType()) return true;
	if (!raw->isAnyPointerType()) return false;

	clang::QualType pointee = raw->getPointeeType();
	return pointee->isStructureType();
	}

	-
	-bool TypeUtils::isPointer(const ExpandedType &ty) {
	+bool
	+TypeUtils::isPointer(const ExpandedType &ty) {
	if (ty.get().__operator != TypeOperator::CUSTOM) return false;

	clang::QualType qt = llvm->layerExtern->lookupType(ty.get().__valueCustom);
	return llvm->layerExtern->isPointer(qt);
	}

	-
	std::vector<std::string>
	TypeUtils::getStructFields(const ExpandedType &t) {
	return (t.get().__operator == TypeOperator::LIST_NAMED)
	- ? t.get().fields
	- : llvm->layerExtern->getStructFields(
	- llvm->layerExtern->lookupType(t.get().__valueCustom));
	+ ? t.get().fields
	+ : llvm->layerExtern->getStructFields(
	+ llvm->layerExtern->lookupType(t.get().__valueCustom));
	}


	diff --git a/cpp/src/pass/cfapass.cpp b/cpp/src/pass/cfapass.cpp
	index de391a6..ac93e15 100644
	--- a/cpp/src/pass/cfapass.cpp
	+++ b/cpp/src/pass/cfapass.cpp
	@@ -1,196 +1,198 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* cfapass.cpp
	*
	* Author: pgess <v.melnychenko@xreate.org>
	*/

	/**
	* \file cfapass.h
	* \brief Control Flow Analysis(CFA)
	*/

	#include "cfapass.h"
	#include "analysis/cfagraph.h"
	#include "analysis/DominatorsTreeAnalysisProvider.h"

	#include <boost/range/iterator_range_core.hpp>

	using namespace std;
	using namespace xreate::cfa;

	void
	CFAPassBasic::initSignatures(){
	auto range = man->root->__interfacesData.equal_range(CFA);
	for (auto i = range.first; i!= range.second; ++i){
	__signatures.emplace(i->second.op, i->second);
	}
	}

	void
	CFAPassBasic::run(){
	initSignatures();

	return AbstractPass::run();
	}

	void
	CFAPassBasic::finish(){
	man->transcend->registerReport(__context.graph);

	dominators::DominatorsTreeAnalysisProvider* reportDominators = new dominators::DominatorsTreeAnalysisProvider();
	reportDominators->run(__context.graph);
	man->transcend->registerReport(reportDominators);

	return AbstractPass::finish();
	}

	void
	CFAPassBasic::processFnCall(ManagedFnPtr function, PassContext context){
	TranscendLayer* transcend = man->transcend;
	__context.graph->addCallConnection(transcend->pack(context.scope), function->getName());

	return AbstractPass::processFnCall(function, context);
	}

	void
	CFAPassBasic::processFnCallUncertain(ManagedFnPtr function, PassContext context){
	TranscendLayer* transcend = man->transcend;
	__context.graph->addCallConnection(transcend->pack(context.scope), function->getName());

	return AbstractPass::processFnCallUncertain(function, context);
	}

	void
	CFAPassBasic::process(CodeScope* scope, PassContext context, const std::string& hintBlockDecl){
	TranscendLayer* transcend = man->transcend;

	const CodeScope* scopeParent = context.scope;
	ScopePacked scopeId = transcend->pack(scope);

	+ __context.graph->addScope(scope);
	+
	//Parent Relations
	if (scopeParent){
	__context.graph->addParentConnection(scopeId, transcend->pack(scopeParent));
	} else {
	__context.graph->addParentConnection(scopeId, context.function->getName());
	}

	//TOTEST scope annotations
	//SECTIONTAG context gather scope annotations
	__context.graph->addScopeAnnotations(scopeId, scope->tags);

	__context.graph->addContextRules(scopeId, scope->contextRules);

	return AbstractPass::process(scope, context, hintBlockDecl);
	}

	//TOTEST scope annotations via scheme
	void
	CFAPassBasic::process(const Expression& expression, PassContext context, const std::string& varDecl){
	TranscendLayer* transcend = man->transcend;

	if (expression.__state == Expression::COMPOUND){
	Operator op= expression.op;

	if (__signatures.count(op)) {
	assert(expression.blocks.size());

	for (const auto& scheme: boost::make_iterator_range(__signatures.equal_range(expression.op))) {
	__context.graph->addScopeAnnotations(transcend->pack(expression.blocks.front()), scheme.second.getOperands());
	}
	}
	}

	return AbstractPass::process(expression, context, varDecl);
	}

	void
	CFAPassBasic::process(ManagedFnPtr function){
	__context.graph->addFunctionAnnotations(function->getName(), function->getTags());
	return AbstractPass::process(function);
	}

	CFAPassBasic::CFAPassBasic(PassManager* manager)
	: AbstractPass(manager)
	, __context{new CFAGraph(manager->transcend)}
	{}

	/**************************SCOPE DEPENDENCIES******************************/
	void
	CFAPassDependenciesDecorator::process(const Expression& expression, PassContext context, const std::string& varDecl){
	TranscendLayer* transcend = man->transcend;

	if (expression.__state == Expression::COMPOUND)
	switch(expression.op){
	case Operator::SEQUENCE:{
	ScopePacked scopePrev = transcend->pack(expression.blocks.front());
	for(auto scopeIt= ++expression.blocks.begin(); scopeIt != expression.blocks.end(); ++scopeIt){
	ScopePacked scopeCurrent = transcend->pack(*scopeIt);
	__context.graph->addDependency(scopeCurrent, scopePrev);
	scopePrev = scopeCurrent;
	}
	break;
	}

	default: break;
	}

	return Parent::process(expression, context, varDecl);
	}

	void
	CFAPassDependenciesDecorator::processFnCall(ManagedFnPtr function, PassContext context){
	TranscendLayer* transcend = man->transcend;

	const CodeScope* scopeCaller = context.scope;
	assert(scopeCaller);
	ScopePacked scopeCallerPacked = transcend->pack(scopeCaller);

	if(__context.graph->isDependent(scopeCallerPacked)){
	ScopePacked scopeCalleePacked = transcend->pack(function->getEntryScope());
	__context.graph->transmitDependencies(scopeCalleePacked, scopeCallerPacked);
	}

	Parent::processFnCall(function, context);
	}

	void
	CFAPassDependenciesDecorator::processFnCallUncertain(ManagedFnPtr function, PassContext context){
	TranscendLayer* transcend = man->transcend;

	const CodeScope* scopeCaller = context.scope;
	assert(scopeCaller);
	ScopePacked scopeCallerPacked = transcend->pack(scopeCaller);

	if(__context.graph->isDependent(scopeCallerPacked)){
	ScopePacked scopeCalleePacked = transcend->pack(function->getEntryScope());
	__context.graph->transmitDependencies(scopeCalleePacked, scopeCallerPacked);
	}

	Parent::processFnCallUncertain(function, context);
	}

	void
	CFAPassDependenciesDecorator::process(CodeScope* scope,
	PassContext context, const std::string& hintBlockDecl){

	TranscendLayer* transcend = man->transcend;
	const CodeScope* scopeParent = context.scope;

	if (scopeParent){
	ScopePacked scopePacked = transcend->pack(scope);
	ScopePacked scopeParentPacked = transcend->pack(scopeParent);
	if (!__context.graph->isDependent(scopePacked) &&
	__context.graph->isDependent(scopeParentPacked)) {
	__context.graph->transmitDependencies(scopePacked, scopeParentPacked);
	}
	}

	Parent::process(scope, context, hintBlockDecl);
	}
	/**
	* \class xreate::cfa::CFAPass
	* \details Provides CFA, important analysis for reasoning. Iterates over AST and stores collected data in CFAGraph
	*/
	diff --git a/cpp/src/pass/compilepass.cpp b/cpp/src/pass/compilepass.cpp
	index 21d3234..9d011d6 100644
	--- a/cpp/src/pass/compilepass.cpp
	+++ b/cpp/src/pass/compilepass.cpp
	@@ -1,720 +1,717 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* compilepass.cpp
	*/

	/**
	* \file compilepass.h
	* \brief Compilation pass
	*/

	#include "compilepass.h"
	#include "transcendlayer.h"
	#include <ast.h>
	#include "llvmlayer.h"

	#include "query/containers.h"
	#include "compilation/containers.h"
	#include "ExternLayer.h"
	#include "compilation/targetinterpretation.h"
	#include "pass/versionspass.h"
	#include "compilation/scopedecorators.h"
	#include "compilation/operators.h"
	-#include "aux/latereasoning.h"
	-#include "compilation/latereasoning.h"
	#include "analysis/typeinference.h"
	#include <boost/optional.hpp>
	#include <memory>
	#include <iostream>

	using namespace std;
	using namespace llvm;

	namespace xreate { namespace compilation{

	std::string
	BasicFunctionUnit::prepareName(){
	AST* ast = IFunctionUnit::pass->man->root;

	string name = ast->getFunctionSpecializations(IFunctionUnit::function->__name).size() > 1 ?
	IFunctionUnit::function->__name + std::to_string(IFunctionUnit::function.id()) :
	IFunctionUnit::function->__name;

	return name;
	}

	std::vector<llvm::Type*>
	-BasicFunctionUnit::prepareArguments() {
	+BasicFunctionUnit::prepareSignature() {
	LLVMLayer* llvm = IFunctionUnit::pass->man->llvm;
	AST* ast = IFunctionUnit::pass->man->root;
	CodeScope* entry = IFunctionUnit::function->__entry;
	std::vector<llvm::Type*> signature;

	std::transform(entry->__bindings.begin(), entry->__bindings.end(), std::inserter(signature, signature.end()),
	[llvm, ast, entry](const std::string & arg)->llvm::Type* {
	assert(entry->__identifiers.count(arg));

	ScopedSymbol argid{entry->__identifiers.at(arg), versions::VERSION_NONE};
	return llvm->toLLVMType(ast->expandType(entry->__declarations.at(argid).type));
	});

	return signature;
	}

	llvm::Type*
	BasicFunctionUnit::prepareResult() {
	LLVMLayer* llvm = IFunctionUnit::pass->man->llvm;
	AST* ast = IFunctionUnit::pass->man->root;
	CodeScope* entry = IFunctionUnit::function->__entry;

	return llvm->toLLVMType(ast->expandType(entry->__declarations.at(ScopedSymbol::RetSymbol).type));
	}

	llvm::Function::arg_iterator
	BasicFunctionUnit::prepareBindings() {
	CodeScope* entry = IFunctionUnit::function->__entry;
	ICodeScopeUnit* entryCompilation = IFunctionUnit::getScopeUnit(entry);
	llvm::Function::arg_iterator fargsI = IFunctionUnit::raw->arg_begin();

	for (std::string &arg : entry->__bindings) {
	ScopedSymbol argid{entry->__identifiers[arg], versions::VERSION_NONE};

	entryCompilation->bindArg(&*fargsI, argid);
	fargsI->setName(arg);
	++fargsI;
	}

	return fargsI;
	}

	//DEBT compiler rigidly depends on exact definition of DefaultFunctionUnit
	-typedef BasicFunctionUnit DefaultFunctionUnit;
	+typedef BasicFunctionUnit BruteFunctionDefault;

	ICodeScopeUnit::ICodeScopeUnit(const CodeScope* const codeScope, IFunctionUnit* f, CompilePass* compilePass)
	: pass(compilePass), function(f), scope(codeScope), currentBlockRaw(nullptr) {
	}

	llvm::Value*
	-CallStatementRaw::operator()(std::vector<llvm::Value *>&& args, const std::string& hintDecl) {
	+RawFnInvocation::operator()(std::vector<llvm::Value *>&& args, const std::string& hintDecl) {
	llvm::Function* calleeInfo = dyn_cast<llvm::Function>(__callee);

	if (calleeInfo) {
	auto argsFormal = calleeInfo->args();

	int pos = 0;
	//SECTIONTAG types/convert function ret value
	for (auto argFormal = argsFormal.begin(); argFormal != argsFormal.end(); ++argFormal, ++pos) {
	args[pos] = typeinference::doAutomaticTypeConversion(args[pos], argFormal->getType(), llvm->builder);
	}
	}

	//Do not name function call that returns Void.
	std::string nameStatement = hintDecl;
	if (calleeInfo->getReturnType()->isVoidTy()){
	nameStatement.clear();
	}

	return llvm->builder.CreateCall(__calleeTy, __callee, args, nameStatement);
	}

	//DESABLEDFEATURE implement inlining
	-class CallStatementInline : public ICallStatement {
	+class CallStatementInline : public IFnInvocation {
	public:
	CallStatementInline(IFunctionUnit* caller, IFunctionUnit* callee, LLVMLayer* l)
	: __caller(caller), __callee(callee), llvm(l) {
	}

	llvm::Value* operator()(std::vector<llvm::Value *>&& args, const std::string& hintDecl) {
	//TOTEST inlining
	// CodeScopeUnit* entryCompilation = outer->getScopeUnit(function->__entry);
	// for(int i=0, size = args.size(); i<size; ++i) {
	// entryCompilation->bindArg(args.at(i), string(entryCompilation->scope->__bindings.at(i)));
	// }
	//
	//
	// return entryCompilation->compile();

	return nullptr;
	}

	private:
	IFunctionUnit* __caller;
	IFunctionUnit* __callee;
	LLVMLayer* llvm;

	bool isInline() {
	// Symbol ret = Symbol{0, function->__entry};
	// bool flagOnTheFly = SymbolAttachments::get<IsImplementationOnTheFly>(ret, false);
	//TODO consider inlining
	return false;
	}
	};

	BasicCodeScopeUnit::BasicCodeScopeUnit(const CodeScope* const codeScope, IFunctionUnit* f, CompilePass* compilePass)
	: ICodeScopeUnit(codeScope, f, compilePass) {
	}

	llvm::Value*
	BasicCodeScopeUnit::processSymbol(const Symbol& s, std::string hintRetVar) {
	Expression declaration = CodeScope::getDefinition(s);
	const CodeScope* scope = s.scope;
	ICodeScopeUnit* scopeExternal = ICodeScopeUnit::function->getScopeUnit(scope);

	llvm::Value* resultRaw;
	if (scopeExternal == this){
	resultRaw = process(declaration, hintRetVar);
	currentBlockRaw = pass->man->llvm->builder.GetInsertBlock();

	} else {
	assert(scopeExternal->currentBlockRaw);

	llvm::BasicBlock* blockOwn = pass->man->llvm->builder.GetInsertBlock();
	pass->man->llvm->builder.SetInsertPoint(scopeExternal->currentBlockRaw);
	resultRaw = scopeExternal->processSymbol(s, hintRetVar);
	pass->man->llvm->builder.SetInsertPoint(blockOwn);
	}

	return resultRaw;
	}

	-ICallStatement*
	+IFnInvocation*
	BasicCodeScopeUnit::findFunction(const Expression& opCall) {
	const std::string& calleeName = opCall.getValueString();
	LLVMLayer* llvm = pass->man->llvm;
	const std::list<ManagedFnPtr>& specializations = pass->man->root->getFunctionSpecializations(calleeName);

	//if no specializations registered - check external function
	if (specializations.size() == 0) {
	llvm::Function* external = llvm->layerExtern->lookupFunction(calleeName);

	llvm::outs() << "Debug/External function: " << calleeName;
	external->getType()->print(llvm::outs(), true);
	llvm::outs() << "\n";

	- return new CallStatementRaw(external, llvm);
	+ return new RawFnInvocation(external, llvm);
	}

	//There should be only one specialization without any valid guards at this point
	- return new CallStatementRaw(pass->getFunctionUnit(
	+ return new RawFnInvocation(pass->getFunctionUnit(
	pass->man->root->findFunction(calleeName))->compile(),
	llvm);
	}

	//DISABLEDFEATURE transformations
	// if (pass->transformations->isAcceptable(expr)){
	// return pass->transformations->transform(expr, result, ctx);
	// }

	llvm::Value*
	BasicCodeScopeUnit::process(const Expression& expr, const std::string& hintVarDecl) {
	#define DEFAULT(x) (hintVarDecl.empty()? x: hintVarDecl)
	llvm::Value *left;
	llvm::Value *right;
	LLVMLayer& l = *pass->man->llvm;
	xreate::compilation::AdvancedInstructions instructions = xreate::compilation::AdvancedInstructions({this, function, pass});

	switch (expr.op) {
	case Operator::SUB: case Operator::MUL:
	case Operator::DIV: case Operator::EQU: case Operator::LSS:
	case Operator::GTR: case Operator::NE: case Operator::LSE:
	case Operator::GTE:

	assert(expr.__state == Expression::COMPOUND);
	assert(expr.operands.size() == 2);

	left = process(expr.operands[0]);
	right = process(expr.operands[1]);

	//SECTIONTAG types/convert binary operation
	right = typeinference::doAutomaticTypeConversion(right, left->getType(), l.builder);
	break;

	default:;
	}

	switch (expr.op) {
	case Operator::ADD:
	{
	left = process(expr.operands[0]);
	Context context{this, function, pass};

	llvm::Value* resultSU = StructUpdate::add(expr.operands[0], left, expr.operands[1], context, DEFAULT("tmp_add"));
	if (resultSU) return resultSU;

	right = process(expr.operands[1]);

	llvm::Value* resultAddPA = pointerarithmetic::PointerArithmetic::add(left, right, context, DEFAULT("tmp_add"));
	if (resultAddPA) {
	return resultAddPA;
	}

	return l.builder.CreateAdd(left, right, DEFAULT("tmp_add"));
	break;
	}

	case Operator::SUB:
	return l.builder.CreateSub(left, right, DEFAULT("tmp_sub"));
	break;

	case Operator::MUL:
	return l.builder.CreateMul(left, right, DEFAULT("tmp_mul"));
	break;

	case Operator::DIV:
	return l.builder.CreateSDiv(left, right, DEFAULT("tmp_div"));
	break;

	case Operator::EQU:
	if (left->getType()->isIntegerTy()) return l.builder.CreateICmpEQ(left, right, DEFAULT("tmp_equ"));
	if (left->getType()->isFloatingPointTy()) return l.builder.CreateFCmpOEQ(left, right, DEFAULT("tmp_equ"));
	break;

	case Operator::NE:
	return l.builder.CreateICmpNE(left, right, DEFAULT("tmp_ne"));
	break;

	case Operator::LSS:
	return l.builder.CreateICmpSLT(left, right, DEFAULT("tmp_lss"));
	break;

	case Operator::LSE:
	return l.builder.CreateICmpSLE(left, right, DEFAULT("tmp_lse"));
	break;

	case Operator::GTR:
	return l.builder.CreateICmpSGT(left, right, DEFAULT("tmp_gtr"));
	break;

	case Operator::GTE:
	return l.builder.CreateICmpSGE(left, right, DEFAULT("tmp_gte"));
	break;

	case Operator::NEG:
	left = process(expr.operands[0]);
	return l.builder.CreateNeg(left, DEFAULT("tmp_neg"));
	break;

	case Operator::CALL:
	{
	assert(expr.__state == Expression::COMPOUND);
	- shared_ptr<ICallStatement> callee(findFunction(expr));
	+ shared_ptr<IFnInvocation> callee(findFunction(expr));
	const std::string& nameCallee = expr.getValueString();

	//prepare arguments
	std::vector<llvm::Value *> args;
	args.reserve(expr.operands.size());

	std::transform(expr.operands.begin(), expr.operands.end(), std::inserter(args, args.end()),
	[this](const Expression & operand) {
	return process(operand);
	}
	);

	return (*callee)(move(args), DEFAULT("res_" + nameCallee));
	}

	case Operator::IF:
	{
	return instructions.compileIf(expr, DEFAULT("tmp_if"));
	}

	case Operator::SWITCH:
	{
	return instructions.compileSwitch(expr, DEFAULT("tmp_switch"));
	}

	case Operator::LOGIC_AND:
	{
	assert(expr.operands.size() == 1);
	return process(expr.operands[0]);
	}

	case Operator::LIST:
	{
	return instructions.compileListAsSolidArray(expr, DEFAULT("tmp_list"));
	};

	case Operator::LIST_RANGE:
	{
	assert(false); //no compilation phase for a range list
	// return InstructionList(this).compileConstantArray(expr, l, hintRetVar);
	};

	case Operator::LIST_NAMED:
	{
	typedef Expanded<TypeAnnotation> ExpandedType;

	ExpandedType tyStructLiteral = l.ast->getType(expr);

	const std::vector<string> fieldsFormal = (tyStructLiteral.get().__operator == TypeOperator::CUSTOM) ?
	l.layerExtern->getStructFields(l.layerExtern->lookupType(tyStructLiteral.get().__valueCustom))
	: tyStructLiteral.get().fields;

	std::map<std::string, size_t> indexFields;
	for (size_t i = 0, size = fieldsFormal.size(); i < size; ++i) {
	indexFields.emplace(fieldsFormal[i], i);
	}

	llvm::StructType* tyLiteralRaw = llvm::cast<llvm::StructType>(l.toLLVMType(tyStructLiteral));
	llvm::Value* record = llvm::UndefValue::get(tyLiteralRaw);

	for (size_t i = 0; i < expr.operands.size(); ++i) {
	const Expression& operand = expr.operands.at(i);
	unsigned int fieldId = indexFields.at(expr.bindings.at(i));
	llvm::Value* result = process(operand);
	assert(result);
	record = l.builder.CreateInsertValue(record, result, llvm::ArrayRef<unsigned>({fieldId}));
	}

	return record;
	};

	case Operator::MAP:
	{
	assert(expr.blocks.size());
	return instructions.compileMapSolidOutput(expr, DEFAULT("map"));
	};

	case Operator::FOLD:
	{
	return instructions.compileFold(expr, DEFAULT("fold"));
	};

	case Operator::FOLD_INF:
	{
	return instructions.compileFoldInf(expr, DEFAULT("fold"));
	};

	case Operator::INDEX:
	{
	//TASK allow multiindex compilation
	assert(expr.operands.size() == 2);
	assert(expr.operands[0].__state == Expression::IDENT);

	const std::string& hintIdent = expr.operands[0].getValueString();
	Symbol s = Attachments::get<IdentifierSymbol>(expr.operands[0]);
	const ExpandedType& t2 = pass->man->root->getType(expr.operands[0]);

	llvm::Value* aggr = processSymbol(s, hintIdent);

	switch (t2.get().__operator) {
	case TypeOperator::LIST_NAMED: case TypeOperator::CUSTOM:
	{
	std::string idxField;
	const Expression& idx = expr.operands.at(1);
	switch (idx.__state) {

	//named struct field
	case Expression::STRING:
	idxField = idx.getValueString();
	break;

	//anonymous struct field
	case Expression::NUMBER:
	idxField = to_string((int) idx.getValueDouble());
	break;

	default:
	assert(false && "Wrong index for a struct");
	}

	return instructions.compileStructIndex(aggr, t2, idxField);
	};

	case TypeOperator::LIST:
	{
	std::vector<llvm::Value*> indexes;
	std::transform(++expr.operands.begin(), expr.operands.end(), std::inserter(indexes, indexes.end()),
	[this] (const Expression & op) {
	return process(op);
	}
	);

	return instructions.compileArrayIndex(aggr, indexes, DEFAULT(string("el_") + hintIdent));
	};

	default:
	assert(false);
	}
	};

	case Operator::CALL_INTRINSIC:
	{
	const std::string op = expr.getValueString();

	if (op == "copy") {
	llvm::Value* result = process(expr.getOperands().at(0));

	auto decoratorVersions = Decorators<VersionsScopeDecoratorTag>::getInterface(this);
	llvm::Value* storage = decoratorVersions->processIntrinsicInit(result->getType());
	decoratorVersions->processIntrinsicCopy(result, storage);

	return l.builder.CreateLoad(storage, hintVarDecl);
	}

	assert(false && "undefined intrinsic");
	}

	case Operator::VARIANT:
	{
	const ExpandedType& typVariant = pass->man->root->getType(expr);
	llvm::Type* typVariantRaw = l.toLLVMType(typVariant);
	llvm::Type* typIdRaw = llvm::cast<llvm::StructType>(typVariantRaw)->getElementType(0);

	uint64_t id = expr.getValueDouble();
	llvm::Value* variantRaw = llvm::UndefValue::get(typVariantRaw);
	variantRaw = l.builder.CreateInsertValue(variantRaw, llvm::ConstantInt::get(typIdRaw, id), llvm::ArrayRef<unsigned>({0}));

	const bool flagDoReference = expr.operands.size();
	if (flagDoReference){
	const ExpandedType& subtyp = ExpandedType(typVariant->__operands.at(id));
	llvm::Type* subtypRaw = l.toLLVMType(subtyp);
	Attachments::put<TypeInferred>(expr.operands.at(0), subtyp);
	llvm::Value* subtypValue = process(expr.operands.at(0));

	llvm::Type* typStorageRaw = llvm::cast<llvm::StructType>(typVariantRaw)->getElementType(1);
	llvm::Value* addrAsStorage = l.builder.CreateAlloca(typStorageRaw);
	llvm::Value* addrAsSubtyp = l.builder.CreateBitOrPointerCast(addrAsStorage, subtypRaw->getPointerTo());

	l.builder.CreateStore(subtypValue, addrAsSubtyp);
	llvm::Value* storageRaw = l.builder.CreateLoad(typStorageRaw, addrAsStorage);
	variantRaw = l.builder.CreateInsertValue(variantRaw, storageRaw, llvm::ArrayRef<unsigned>({1}));
	}

	return variantRaw;
	}

	case Operator::SWITCH_VARIANT: {
	return instructions.compileSwitchVariant(expr, DEFAULT("tmpswitch"));
	}

	case Operator::SWITCH_LATE: {
	- latereasoning::LateReasoningCompiler compiler({this, function, pass});
	- return compiler.compile(expr, DEFAULT("switchlate"));
	+ assert(false && "Instruction's compilation should've been redirected to interpretation");
	+ return nullptr;
	}

	case Operator::SEQUENCE: {
	return instructions.compileSequence(expr);
	}

	case Operator::UNDEF: {
	llvm::Type* typExprUndef = l.toLLVMType(typeinference::getType(expr, *pass->man->root));
	return llvm::UndefValue::get(typExprUndef);
	}

	case Operator::INVALID:
	assert(expr.__state != Expression::COMPOUND);

	switch (expr.__state) {
	case Expression::IDENT:
	{
	Symbol s = Attachments::get<IdentifierSymbol>(expr);
	return processSymbol(s, expr.getValueString());
	}

	case Expression::NUMBER:
	{
	llvm::Type* typConst = l.toLLVMType(typeinference::getType(expr, *pass->man->root));
	int literal = expr.getValueDouble();

	return llvm::ConstantInt::get(typConst, literal);
	}

	case Expression::STRING:
	{
	return instructions.compileConstantStringAsPChar(expr.getValueString(), DEFAULT("tmp_str"));
	};

	default:
	{
	break;
	}
	};

	break;

	default: break;

	}

	assert(false && "Can't compile expression");
	return 0;
	}

	llvm::Value*
	BasicCodeScopeUnit::compile(const std::string& hintBlockDecl) {
	LLVMLayer* llvm = pass->man->llvm;

	if (!hintBlockDecl.empty()) {
	llvm::BasicBlock *block = llvm::BasicBlock::Create(llvm->llvmContext, hintBlockDecl, function->raw);
	pass->man->llvm->builder.SetInsertPoint(block);
	}

	currentBlockRaw = pass->man->llvm->builder.GetInsertBlock();
	Symbol symbScope = Symbol{ScopedSymbol::RetSymbol, scope};
	return processSymbol(symbScope);
	}

	ICodeScopeUnit::~ICodeScopeUnit() {
	}

	IFunctionUnit::~IFunctionUnit() {
	}

	llvm::Function*
	IFunctionUnit::compile() {
	if (raw != nullptr) return raw;

	LLVMLayer* llvm = pass->man->llvm;
	llvm::IRBuilder<>& builder = llvm->builder;

	string&& functionName = prepareName();
	- std::vector<llvm::Type*>&& types = prepareArguments();
	+ std::vector<llvm::Type*>&& types = prepareSignature();
	llvm::Type* expectedResultType = prepareResult();

	llvm::FunctionType *ft = llvm::FunctionType::get(expectedResultType, types, false);
	raw = llvm::cast<llvm::Function>(llvm->module->getOrInsertFunction(functionName, ft));
	prepareBindings();

	const std::string&blockName = "entry";
	llvm::BasicBlock* blockCurrent = builder.GetInsertBlock();

	llvm::Value* result = getScopeUnit(function->__entry)->compile(blockName);
	assert(result);

	//SECTIONTAG types/convert function ret value
	builder.CreateRet(typeinference::doAutomaticTypeConversion(result, expectedResultType, llvm->builder));

	if (blockCurrent) {
	builder.SetInsertPoint(blockCurrent);
	}

	llvm->moveToGarbage(ft);
	return raw;
	}

	ICodeScopeUnit*
	IFunctionUnit::getScopeUnit(const CodeScope * const scope) {
	if (__scopes.count(scope)) {
	auto result = __scopes.at(scope).lock();

	if (result) {
	return result.get();
	}
	}

	std::shared_ptr<ICodeScopeUnit> unit(pass->buildCodeScopeUnit(scope, this));

	if (scope->__parent != nullptr) {
	auto parentUnit = Decorators<CachedScopeDecoratorTag>::getInterface(getScopeUnit(scope->__parent));
	parentUnit->registerChildScope(unit);

	} else {
	__orphanedScopes.push_back(unit);
	}

	if (!__scopes.emplace(scope, unit).second) {
	__scopes[scope] = unit;
	}

	return unit.get();
	}

	ICodeScopeUnit*
	IFunctionUnit::getScopeUnit(ManagedScpPtr scope) {
	return getScopeUnit(&*scope);
	}

	ICodeScopeUnit*
	IFunctionUnit::getEntry() {
	return getScopeUnit(function->getEntryScope());
	}

	template<>
	compilation::IFunctionUnit*
	CompilePassCustomDecorators<void, void>::buildFunctionUnit(const ManagedFnPtr& function){
	- return new DefaultFunctionUnit(function, this);
	+ return new BruteFunctionDefault(function, this);
	}

	template<>
	compilation::ICodeScopeUnit*
	CompilePassCustomDecorators<void, void>::buildCodeScopeUnit(const CodeScope* const scope, IFunctionUnit* function){
	return new DefaultCodeScopeUnit(scope, function, this);
	}

	} // end of compilation

	compilation::IFunctionUnit*
	CompilePass::getFunctionUnit(const ManagedFnPtr& function) {
	unsigned int id = function.id();

	if (!functions.count(id)) {
	compilation::IFunctionUnit* unit = buildFunctionUnit(function);
	functions.emplace(id, unit);
	return unit;
	}

	return functions.at(id);
	}

	void
	CompilePass::run() {
	//Initialization:
	managerTransformations = new xreate::compilation::TransformationsManager();
	targetInterpretation = new interpretation::TargetInterpretation(this->man->root, this);
	- Attachments::init<LateBindingT>();

	//Determine entry function:
	StaticModel model = man->transcend->query(Config::get("function-entry"));
	assert(model.size() && "Error: No entry function found");
	assert(model.size() == 1 && "Error: Ambiguous entry function");

	string nameMain = std::get<0>(TranscendLayer::parse<std::string>(model.begin()->second));
	compilation::IFunctionUnit* unitMain = getFunctionUnit(man->root->findFunction(nameMain));

	//Compilation itself:
	entry = unitMain->compile();
	}

	llvm::Function*
	CompilePass::getEntryFunction() {
	assert(entry);
	return entry;
	}

	void
	CompilePass::prepareQueries(TranscendLayer* transcend) {
	transcend->registerQuery(new containers::Query(), QueryId::ContainersQuery);
	transcend->registerQuery(new polymorph::PolymorphQuery(), QueryId::PolymorphQuery);
	}
	} //end of namespace xreate

	/**
	* \class xreate::CompilePass
	* \brief Encapsulates all compilation activities
	*
	* xreate::CompilePass iterates over xreate::AST tree and produces executable code fed by data(via xreate::Attachments) gathered by previous passes as well as data via queries(xreate::IQuery) from xreate:TranscendLayer reasoner.
	* Compilation's done using xreate::LLVMLayer(wrapper over LLVM toolchain) and based on following aspects:
	* - Containers support. See \ref compilation/containers.h
	* - Late Conext compilation. See xreate::context::LateContextCompiler2
	* - Interpretation support. See xreate::interpretation::TargetInterpretation
	* - Loop saturation support. See xreate::compilation::TransformerSaturation
	* - External Code access. See xreate::ExternLayer(wrapper over Clang library)
	*
	* \section adaptability_sect Adaptability
	* xreate::CompilePass's architecture provides adaptability by employing:
	* - %Function Decorators to alter function-level compilation. See xreate::compilation::IFunctionUnit
	* - Code Block Decorators to alter code block level compilation. See xreate::compilation::ICodeScopeUnit
	* Default functionality defined by \ref xreate::compilation::DefaultCodeScopeUnit
	* - Targets to allow more versitile extensions.
	* Currently only xreate::interpretation::TargetInterpretation use Targets infrastructure. See xreate::compilation::Target
	* - %Altering Function invocation. xreate::compilation::ICallStatement
	*
	* Client able to construct compiler with desired decorators using xreate::compilation::CompilePassCustomDecorators.
	* As a handy alias, `CompilePassCustomDecorators<void, void>` constructs default compiler
	*
	*/
	diff --git a/cpp/src/pass/compilepass.h b/cpp/src/pass/compilepass.h
	index 405aac0..fd2ab05 100644
	--- a/cpp/src/pass/compilepass.h
	+++ b/cpp/src/pass/compilepass.h
	@@ -1,207 +1,208 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* compilepass.h
	*/

	#ifndef COMPILEPASS_H
	#define COMPILEPASS_H

	#include "abstractpass.h"

	#include "llvm/IR/Function.h"

	namespace xreate {
	class TranscendLayer;
	class CompilePass;
	class LLVMLayer;

	namespace interpretation{
	class TargetInterpretation;
	}
	}

	namespace xreate { namespace compilation {

	class ICodeScopeUnit;
	class IFunctionUnit;
	class TransformationsManager;

	/** \brief Holds current position in %AST while traversing*/
	struct Context{
	ICodeScopeUnit* scope;
	IFunctionUnit* function;
	CompilePass* pass;
	};

	/** \brief Interface to specify custom way of function invocation
	- * \details Default implementation is xreate::compilation::CallStatementRaw
	+ * \details Default implementation is xreate::compilation::RawFnInvocation
	*/
	-class ICallStatement {
	+class IFnInvocation {
	public:
	/** \brief Returns result of custom function invocation for given arguments*/
	virtual llvm::Value* operator() (std::vector<llvm::Value *>&& args, const std::string& hintDecl="") = 0;
	};

	-/** \brief Default ICallStatement implementation */
	-class CallStatementRaw: public ICallStatement{
	+/** \brief Default IFnInvocation implementation */
	+class RawFnInvocation: public IFnInvocation{
	public:
	- CallStatementRaw(llvm::Function* callee, LLVMLayer* l)
	+ RawFnInvocation(llvm::Function* callee, LLVMLayer* l)
	: __callee(callee), __calleeTy(callee->getFunctionType()), llvm(l) {}
	- CallStatementRaw(llvm::Value* callee, llvm::FunctionType* ty, LLVMLayer* l)
	+ RawFnInvocation(llvm::Value* callee, llvm::FunctionType* ty, LLVMLayer* l)
	: __callee(callee), __calleeTy(ty), llvm(l) {}

	/** \brief Makes type conversions and returns LLVM call statement with given arguments*/
	llvm::Value* operator() (std::vector<llvm::Value *>&& args, const std::string& hintDecl="");

	-private:
	+protected:
	llvm::Value* __callee;
	llvm::FunctionType* __calleeTy;
	LLVMLayer* llvm;
	};

	/** \brief Interface to allow modification of CodeScope compilation
	* \details Default implementation defined in xreate::compilation::DefaultCodeScopeUnit
	*/
	class ICodeScopeUnit{
	public:
	CompilePass* const pass;
	IFunctionUnit* const function;
	const CodeScope* const scope;
	llvm::BasicBlock* currentBlockRaw;

	ICodeScopeUnit(const CodeScope* const codeScope, IFunctionUnit* f, CompilePass* compilePass);
	virtual ~ICodeScopeUnit();

	virtual llvm::Value* compile(const std::string& hintBlockDecl="")=0;
	virtual llvm::Value* processSymbol(const Symbol& s, std::string hintRetVar="")=0;
	virtual llvm::Value* process(const Expression& expr, const std::string& hintVarDecl="")=0;

	virtual Symbol bindArg(llvm::Value* value, std::string&& alias)=0;
	virtual void bindArg(llvm::Value* value, const ScopedSymbol& s)=0;
	-
	+ virtual void reset() = 0;
	protected:
	- virtual ICallStatement* findFunction(const Expression& opCall)=0;
	+ virtual IFnInvocation* findFunction(const Expression& opCall)=0;
	};

	/** \brief Minimal useful ICodeScopeUnit implementation suited for inheritance */
	class BasicCodeScopeUnit: public ICodeScopeUnit{
	public:
	BasicCodeScopeUnit(const CodeScope* const codeScope, IFunctionUnit* f, CompilePass* compilePass);

	llvm::Value* processSymbol(const Symbol& s, std::string hintRetVar="") override;
	llvm::Value* process(const Expression& expr, const std::string& hintVarDecl="") override;
	llvm::Value* compile(const std::string& hintBlockDecl="") override;

	protected:
	- ICallStatement* findFunction(const Expression& opCall) override;
	+ IFnInvocation* findFunction(const Expression& opCall) override;
	};

	/** \brief Interface to specify compilation of %Function */
	class IFunctionUnit{
	public:
	IFunctionUnit(ManagedFnPtr f, CompilePass* p): function(f), pass(p) {}
	virtual ~IFunctionUnit();

	llvm::Function* compile();

	ICodeScopeUnit* getEntry();
	ICodeScopeUnit* getScopeUnit(const CodeScope * const scope);
	ICodeScopeUnit* getScopeUnit(ManagedScpPtr scope);

	+ virtual llvm::Type* prepareResult() = 0;
	+
	ManagedFnPtr function;
	llvm::Function* raw = nullptr;

	protected:
	CompilePass* pass=nullptr;

	virtual std::string prepareName() = 0;
	- virtual std::vector<llvm::Type*> prepareArguments() = 0;
	- virtual llvm::Type* prepareResult() = 0;
	+ virtual std::vector<llvm::Type*> prepareSignature() = 0;
	virtual llvm::Function::arg_iterator prepareBindings() = 0;

	private:
	std::map<const CodeScope * const, std::weak_ptr<ICodeScopeUnit>> __scopes;
	std::list<std::shared_ptr<ICodeScopeUnit>> __orphanedScopes;
	};

	/** \brief Minimal useful IFunctionUnit implementation suited for inheritance */
	class BasicFunctionUnit: public IFunctionUnit{
	public:
	BasicFunctionUnit(ManagedFnPtr f, CompilePass* p)
	: IFunctionUnit(f, p) {}

	protected:
	std::string prepareName() override;
	- virtual std::vector<llvm::Type*> prepareArguments() override;
	+ virtual std::vector<llvm::Type*> prepareSignature() override;
	virtual llvm::Type* prepareResult() override;
	virtual llvm::Function::arg_iterator prepareBindings() override;
	};
	} // end of namespace compilation

	class CompilePass : public AbstractPass<void> {
	friend class compilation::BasicCodeScopeUnit;
	friend class compilation::IFunctionUnit;

	public:
	compilation::TransformationsManager* managerTransformations;
	interpretation::TargetInterpretation* targetInterpretation;

	CompilePass(PassManager* manager): AbstractPass<void>(manager) {}
	/** \brief Executes compilation process */
	void run() override;

	/**\brief Returns compiled specified %Function
	* \details Executes function compilation or read cache if it's already done
	*/
	compilation::IFunctionUnit* getFunctionUnit(const ManagedFnPtr& function);

	/*\brief Returns compiled main(entry) %Function in program /
	llvm::Function* getEntryFunction();

	/** \brief Initializes queries required by compiler. See xreate::IQuery, xreate::TranscendLayer */
	static void prepareQueries(TranscendLayer* transcend);



	protected:
	virtual compilation::IFunctionUnit* buildFunctionUnit(const ManagedFnPtr& function)=0;
	virtual compilation::ICodeScopeUnit* buildCodeScopeUnit(const CodeScope* const scope, compilation::IFunctionUnit* function)=0;

	private:
	//TODO free `functions` in destructor
	std::map<unsigned int, compilation::IFunctionUnit*> functions;
	llvm::Function* entry = 0;
	};

	namespace compilation{

	/** \brief Constructs compiler with desired %Function and %Code Scope decorators. See adaptability in xreate::CompilePass*/
	template<class FUNCTION_DECORATOR=void, class SCOPE_DECORATOR=void>
	class CompilePassCustomDecorators: public ::xreate::CompilePass{
	public:
	CompilePassCustomDecorators(PassManager* manager): ::xreate::CompilePass(manager) {}

	virtual compilation::IFunctionUnit* buildFunctionUnit(const ManagedFnPtr& function) override{
	return new FUNCTION_DECORATOR(function, this);
	}

	virtual compilation::ICodeScopeUnit* buildCodeScopeUnit(const CodeScope* const scope, IFunctionUnit* function) override{
	return new SCOPE_DECORATOR(scope, function, this);
	}
	};

	template<>
	compilation::IFunctionUnit*
	CompilePassCustomDecorators<void, void>::buildFunctionUnit(const ManagedFnPtr& function);

	template<>
	compilation::ICodeScopeUnit*
	CompilePassCustomDecorators<void, void>::buildCodeScopeUnit(const CodeScope* const scope, IFunctionUnit* function);

	}} //end of namespace xreate::compilation

	#endif // COMPILEPASS_H
	diff --git a/cpp/src/pass/interpretationpass.cpp b/cpp/src/pass/interpretationpass.cpp
	index 5e8a0e3..1e4d33e 100644
	--- a/cpp/src/pass/interpretationpass.cpp
	+++ b/cpp/src/pass/interpretationpass.cpp
	@@ -1,525 +1,533 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: interpretationpass.cpp
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on July 5, 2016, 5:21 PM
	*/

	/**
	* \file interpretationpass.h
	* \brief Interpretation analysis: determines what parts of code could be interpreted
	*/

	#include "pass/interpretationpass.h"
	#include <compilation/targetinterpretation.h>
	#include <bits/stl_vector.h>
	#include "ast.h"
	//DEBT implement InterpretationPass purely in transcend
	//DEBT represent InterpretationPass as general type inference

	using namespace std;

	namespace xreate {

	template<>
	interpretation::InterpretationResolution
	defaultValue<interpretation::InterpretationResolution>() {
	return interpretation::CMPL_ONLY;
	}

	namespace interpretation {

	enum InterpretationQuery {
	QUERY_INTR_ONLY, QUERY_CMPL_ONLY
	};

	namespace details {

	template<InterpretationQuery FLAG_REQUIRED>
	bool
	checkConstraints(InterpretationResolution flag) {
	return( (flag==INTR_ONLY&&FLAG_REQUIRED==QUERY_INTR_ONLY)
	\|\|(flag==CMPL_ONLY&&FLAG_REQUIRED==QUERY_CMPL_ONLY));
	}

	InterpretationResolution
	recognizeTags(const map<std::string, Expression>& tags) {
	auto i=tags.find("interpretation");
	if(i==tags.end()){
	return ANY;
	}

	assert(i->second.op==Operator::CALL);
	const string& cmd=i->second.operands.at(0).getValueString();

	//TODO make consistent names of annotation and resolution
	if(cmd=="force"){
	return INTR_ONLY;

	} else if(cmd=="suppress"){
	return CMPL_ONLY;
	}

	return ANY;
	}
	}

	InterpretationResolution
	unify(InterpretationResolution flag) {
	return flag;
	}

	template<typename FLAG_A, typename FLAG_B, typename... FLAGS>
	InterpretationResolution
	unify(FLAG_A flagA, FLAG_B flagB, FLAGS... flags) {

	if(flagA==ANY){
	return unify(flagB, flags...);
	}

	if(flagB==ANY){
	return unify(flagA, flags...);
	}

	assert(flagA==flagB);
	return flagA;
	}

	template<InterpretationQuery FLAG_REQUIRED>
	bool
	checkConstraints(std::vector<InterpretationResolution>&& flags) {
	assert(flags.size());

	InterpretationResolution flag=flags.front();
	return details::checkConstraints<FLAG_REQUIRED>(flag);
	}

	template<InterpretationQuery FLAG_REQUIRED_A, InterpretationQuery FLAG_REQUIRED_B, InterpretationQuery... FLAGS>
	bool
	checkConstraints(std::vector<InterpretationResolution>&& flags) {
	assert(flags.size());

	InterpretationResolution flag=flags.front();
	flags.pop_back();

	if(details::checkConstraints<FLAG_REQUIRED_A>(flag)){
	return checkConstraints<FLAG_REQUIRED_B, FLAGS...>(move(flags));
	}

	return false;
	}

	bool
	InterpretationData::isDefault() const {
	return(resolution==ANY&&op==NONE);
	}

	void
	recognizeTags(const Expression& e) {
	InterpretationData tag{details::recognizeTags(e.tags), NONE};
	if(!tag.isDefault())
	Attachments::put<InterpretationData>(e, tag);
	}

	InterpretationResolution
	recognizeTags(const ManagedFnPtr& f) {
	return details::recognizeTags(f->getTags());
	}

	InterpretationPass::InterpretationPass(PassManager* manager)
	: AbstractPass(manager) {

	Attachments::init<FunctionInterpretationData>();
	Attachments::init<InterpretationData>();
	}

	void
	InterpretationPass::run() {
	ManagedFnPtr f=man->root->begin<Function>();
	auto& visitedSymbols=getSymbolCache();

	while(f.isValid()) {
	const Symbol&symbolFunction{ScopedSymbol::RetSymbol, f->getEntryScope()};

	if(!visitedSymbols.isCached(symbolFunction)){
	visitedSymbols.setCachedValue(symbolFunction, process(f));
	}

	++f;
	}
	}

	InterpretationResolution
	InterpretationPass::process(const Expression& expression, PassContext context, const std::string& decl) {
	recognizeTags(expression);

	InterpretationResolution resolution=ANY;
	InterpretationOperator op=NONE;

	switch(expression.__state) {

	case Expression::NUMBER:
	case Expression::STRING:
	{
	break;
	}

	case Expression::IDENT:
	{
	resolution=Parent::processSymbol(Attachments::get<IdentifierSymbol>(expression), context);
	break;
	}

	case Expression::COMPOUND:
	break;

	default:
	{
	resolution=CMPL_ONLY;
	break;
	}
	}

	if(expression.__state==Expression::COMPOUND)
	switch(expression.op) {
	case Operator::EQU:
	case Operator::NE:
	{
	InterpretationResolution left=process(expression.operands[0], context);
	InterpretationResolution right=process(expression.operands[1], context);

	resolution=unify(left, right);
	break;
	}

	case Operator::LOGIC_AND:
	{
	assert(expression.operands.size()==1);
	resolution=process(expression.operands[0], context);
	break;
	}

	case Operator::CALL:
	{
	//TODO cope with static/dynamic context
	//TODO BUG here: if several variants they all are processed as CMPL regardless of signature
	list<ManagedFnPtr> callees=man->root->getFunctionSpecializations(expression.getValueString());
	if(callees.size()!=1){
	resolution=CMPL_ONLY;
	break;
	}

	ManagedFnPtr callee=callees.front();
	const Symbol& symbCalleeFunc{ScopedSymbol::RetSymbol, callee->getEntryScope()};

	//recursion-aware processing:
	// - skip self recursion
	const Symbol&symbSelfFunc{ScopedSymbol::RetSymbol, context.function->getEntryScope()};
	if(!(symbSelfFunc==symbCalleeFunc)){
	InterpretationResolution resCallee=processFnCall(callee, context);
	assert(resCallee!=FUNC_POSTPONED&&"Indirect recursion detected: can't decide on interpretation resolution");

	resolution=unify(resolution, resCallee);
	}

	//check arguments compatibility
	const FunctionInterpretationData& calleeSignature=FunctionInterpretationHelper::getSignature(callee);
	for(size_t op=0, size=expression.operands.size(); op<size; ++op) {
	const Expression &operand=expression.operands[op];
	InterpretationResolution argActual=process(operand, context);
	InterpretationResolution argExpected=calleeSignature.signature[op];

	//TODO use args unification result to properly process function call
	unify(argActual, argExpected);
	}

	if(FunctionInterpretationHelper::needPartialInterpretation(callee)){
	op=CALL_INTERPRET_PARTIAL;
	}

	break;
	}

	case Operator::CALL_INTRINSIC:
	{
	std::string nameFunction=expression.getValueString();

	if(nameFunction=="query"){
	resolution=INTR_ONLY;

	} else if(nameFunction=="query_scope") {
	resolution=INTR_ONLY;

	} else {
	resolution=CMPL_ONLY;
	}
	break;
	}
	+
	+ case Operator::SWITCH_LATE:
	+ {
	+ resolution = CMPL_ONLY;
	+ op = SWITCH_LATE;
	+ break;
	+ }
	+

	case Operator::IF:
	{
	InterpretationResolution flagCondition=process(expression.getOperands()[0], context);
	InterpretationResolution flagScope1=Parent::process(expression.blocks.front(), context);
	InterpretationResolution flagScope2=Parent::process(expression.blocks.back(), context);

	//special case: IF_INTERPRET_CONDITION
	if(checkConstraints<QUERY_INTR_ONLY>({flagCondition})){
	op=IF_INTERPRET_CONDITION;
	flagCondition=ANY;
	}

	resolution=unify(flagCondition, flagScope1, flagScope2);
	break;
	}

	case Operator::FOLD:
	{
	InterpretationResolution flagInput=process(expression.getOperands()[0], context);
	InterpretationResolution flagAccumInit=process(expression.getOperands()[1], context);

	CodeScope* scopeBody=expression.blocks.front();
	const std::string& nameEl=expression.bindings[0];
	Symbol symbEl{ScopedSymbol
	{scopeBody->__identifiers.at(nameEl), versions::VERSION_NONE}, scopeBody};
	getSymbolCache().setCachedValue(symbEl, InterpretationResolution(flagInput));

	const std::string& nameAccum=expression.bindings[1];
	Symbol symbAccum{ScopedSymbol
	{scopeBody->__identifiers.at(nameAccum), versions::VERSION_NONE}, scopeBody};
	getSymbolCache().setCachedValue(symbAccum, InterpretationResolution(flagAccumInit));

	InterpretationResolution flagBody=Parent::process(expression.blocks.front(), context);

	//special case: FOLD_INTERPRET_INPUT
	if(checkConstraints<QUERY_INTR_ONLY>({flagInput})){
	op=FOLD_INTERPRET_INPUT;
	flagInput=ANY;
	}

	resolution=unify(flagInput, flagAccumInit, flagBody);
	break;
	}

	case Operator::INDEX:
	{
	for(const Expression &op : expression.getOperands()) {
	resolution=unify(resolution, process(op, context));
	}

	break;
	}

	case Operator::SWITCH:
	{
	InterpretationResolution flagCondition=process(expression.operands[0], context);
	bool hasDefaultCase=expression.operands[1].op==Operator::CASE_DEFAULT;


	//determine conditions resolution
	InterpretationResolution flagHeaders=flagCondition;
	for(size_t size=expression.operands.size(), i=hasDefaultCase?2:1; i<size; ++i) {
	const Expression& exprCase=expression.operands[i];

	flagHeaders=unify(flagHeaders, Parent::process(exprCase.blocks.front(), context));
	}

	if(checkConstraints<QUERY_INTR_ONLY>({flagHeaders})){
	op=SWITCH_INTERPRET_CONDITION;
	flagHeaders=ANY;
	}

	//determine body resolutions
	resolution=flagHeaders;
	for(size_t size=expression.operands.size(), i=1; i<size; ++i) {
	const Expression& exprCase=expression.operands[i];

	resolution=unify(resolution, Parent::process(exprCase.blocks.back(), context));
	}

	break;
	}

	case Operator::SWITCH_VARIANT:
	{
	InterpretationResolution resolutionCondition=process(expression.operands.at(0), context);
	resolution=resolutionCondition;

	if(checkConstraints<QUERY_INTR_ONLY>({resolution})){
	op=SWITCH_VARIANT;
	resolution=ANY;
	}

	const string identCondition=expression.bindings.front();
	for(auto scope : expression.blocks) {
	//set binding resolution
	ScopedSymbol symbolInternal=scope->getSymbol(identCondition);
	getSymbolCache().setCachedValue(Symbol{symbolInternal, scope}, InterpretationResolution(resolutionCondition));

	resolution=unify(resolution, Parent::process(scope, context));
	}

	for(auto scope : expression.blocks) {
	resolution=unify(resolution, Parent::process(scope, context));
	}
	break;
	}

	case Operator::LIST:
	case Operator::LIST_NAMED:
	{
	for(const Expression &op : expression.getOperands()) {
	resolution=unify(resolution, process(op, context));
	}

	break;
	}

	case Operator::VARIANT:
	{
	if(expression.getOperands().size()){
	resolution=process(expression.getOperands().front(), context);
	} else {
	resolution=ANY;
	}

	break;
	}

	default:
	{
	resolution=CMPL_ONLY;

	for(const Expression &op : expression.getOperands()) {
	process(op, context);
	}

	for(CodeScope* scope : expression.blocks) {
	Parent::process(scope, context);
	}

	break;
	}
	}

	InterpretationData dataExpected=
	Attachments::get<InterpretationData>(expression,{ANY, NONE});

	resolution=unify(resolution, dataExpected.resolution);
	if(resolution!=dataExpected.resolution \|\| op != dataExpected.op ){
	Attachments::put<InterpretationData>(expression,{resolution, op});
	}

	return resolution;
	}

	InterpretationResolution
	InterpretationPass::processFnCall(ManagedFnPtr function, PassContext context) {
	return process(function);
	}

	InterpretationResolution
	InterpretationPass::process(ManagedFnPtr function) {
	CodeScope* entry=function->getEntryScope();
	std::vector<std::string> arguments=entry->__bindings;
	const Symbol&symbSelfFunc{ScopedSymbol::RetSymbol, function->getEntryScope()};
	auto& cache=getSymbolCache();

	if(cache.isCached(symbSelfFunc))
	return cache.getCachedValue(symbSelfFunc);

	const FunctionInterpretationData& fnSignature=FunctionInterpretationHelper::getSignature(function);
	InterpretationResolution fnResolutionExpected=details::recognizeTags(function->getTags());

	//mark preliminary function resolution as expected
	if(fnResolutionExpected!=ANY){
	cache.setCachedValue(symbSelfFunc, move(fnResolutionExpected));

	} else {
	// - in order to recognize indirect recursion mark this function resolution as POSTPONED
	cache.setCachedValue(symbSelfFunc, FUNC_POSTPONED);
	}

	//set resolution for function arguments as expected
	for(int argNo=0, size=arguments.size(); argNo<size; ++argNo) {
	Symbol symbArg{ScopedSymbol
	{entry->__identifiers.at(arguments[argNo]), versions::VERSION_NONE}, entry};
	cache.setCachedValue(symbArg, InterpretationResolution(fnSignature.signature[argNo]));
	}

	PassContext context;
	context.function=function;
	context.scope=entry;
	InterpretationResolution resActual=process(CodeScope::getDefinition(symbSelfFunc), context);
	resActual=unify(resActual, fnResolutionExpected);
	return cache.setCachedValue(symbSelfFunc, move(resActual));
	}

	const FunctionInterpretationData
	FunctionInterpretationHelper::getSignature(ManagedFnPtr function) {
	if(Attachments::exists<FunctionInterpretationData>(function)){
	return Attachments::get<FunctionInterpretationData>(function);
	}

	FunctionInterpretationData&& data=recognizeSignature(function);
	Attachments::put<FunctionInterpretationData>(function, data);
	return data;
	}

	FunctionInterpretationData
	FunctionInterpretationHelper::recognizeSignature(ManagedFnPtr function) {
	CodeScope* entry=function->__entry;
	FunctionInterpretationData result;
	result.signature.reserve(entry->__bindings.size());

	bool flagPartialInterpretation=false;
	for(size_t no=0, size=entry->__bindings.size(); no<size; ++no) {
	const std::string& argName=entry->__bindings[no];
	Symbol symbArg{ScopedSymbol
	{entry->__identifiers.at(argName), versions::VERSION_NONE}, entry};

	const Expression& arg=CodeScope::getDefinition(symbArg);

	InterpretationResolution argResolution=details::recognizeTags(arg.tags);
	flagPartialInterpretation\|=(argResolution==INTR_ONLY);

	result.signature.push_back(argResolution);
	}
	result.flagPartialInterpretation=flagPartialInterpretation;
	return result;
	}

	bool
	FunctionInterpretationHelper::needPartialInterpretation(ManagedFnPtr function) {
	const FunctionInterpretationData& data=getSignature(function);
	return data.flagPartialInterpretation;
	}
	}
	} //end of namespace xreate::interpretation


	/** \class xreate::interpretation::InterpretationPass
	*
	* Encapsulates Interpretation Analysis to support [Interpretation Concept](/w/concepts/dfa)
	*
	* Recognizes program functions, expressions, instructions eligible for interpretation
	* and stores output in Attachments<FunctionInterpretationData> and Attachments<InterpretationData>
	*
	* There are number of instructions currently able to be interpreted:
	* - Basic literals: numbers and strings
	* - Compounds: lists, structs, variants
	* - Non-versioned identifiers
	* - Comparison and logic operators
	* - %Function calls
	* - `query` intrinsic function calls
	* - Branching: `if`, `loop fold`, `switch`, `switch variant` statements
	*
	* Some of those instructions are eligibile for hybrid interpretation to allow coupling
	* of compiled instructions with interpreted ones, those are:
	* - Partial function calls
	* - Branching: `if`, `loop fold`, `switch`, `switch variant` statements
	*
	* \sa xreate::interpretation::TargetInterpretation, [Interpretation Concept](/w/concepts/dfa)
	*/
	diff --git a/cpp/src/pass/interpretationpass.h b/cpp/src/pass/interpretationpass.h
	index b5ebf20..21da1d3 100644
	--- a/cpp/src/pass/interpretationpass.h
	+++ b/cpp/src/pass/interpretationpass.h
	@@ -1,92 +1,96 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: interpretationpass.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on July 5, 2016, 5:21 PM
	*/

	#ifndef INTERPRETATIONPASS_H
	#define INTERPRETATIONPASS_H

	#include "abstractpass.h"
	#include <map>


	#ifndef FRIENDS_INTERPRETATION_TESTS
	#define FRIENDS_INTERPRETATION_TESTS
	#endif

	//TODO refactor interpretation. Get rid of InterpretationOperator, put only one operator - Hybrid.

	namespace xreate{ namespace interpretation{
	enum InterpretationResolution{ANY, INTR_ONLY, CMPL_ONLY, FUNC_POSTPONED};
	- enum InterpretationOperator{NONE, IF_INTERPRET_CONDITION, FOLD_INTERPRET_INPUT, SWITCH_INTERPRET_CONDITION, SWITCH_VARIANT, CALL_INTERPRET_PARTIAL};
	+ enum InterpretationOperator{
	+ NONE, IF_INTERPRET_CONDITION, FOLD_INTERPRET_INPUT,
	+ SWITCH_INTERPRET_CONDITION, SWITCH_VARIANT, SWITCH_LATE,
	+ CALL_INTERPRET_PARTIAL
	+ };

	struct InterpretationData{
	InterpretationResolution resolution;
	InterpretationOperator op;

	bool isDefault() const;
	};

	struct FunctionInterpretationData{
	typedef std::vector<InterpretationResolution> Signature;
	Signature signature;
	bool flagPartialInterpretation;
	};

	class FunctionInterpretationHelper {
	public:
	static const FunctionInterpretationData
	getSignature(ManagedFnPtr function);

	static bool needPartialInterpretation(ManagedFnPtr function);

	private:
	static FunctionInterpretationData recognizeSignature(ManagedFnPtr function);
	};

	/** \brief Determines parts of program eligible for Interpretation. */
	class InterpretationPass: public AbstractPass<InterpretationResolution> {
	typedef AbstractPass<InterpretationResolution> Parent;

	public:
	InterpretationResolution process(const Expression& expression, PassContext context, const std::string& varDecl="") override;
	InterpretationResolution process(ManagedFnPtr function);
	InterpretationResolution processFnCall(ManagedFnPtr function, PassContext context);

	InterpretationPass(PassManager* manager);
	void run();
	};

	namespace details {
	InterpretationResolution recognizeTags(const std::map<std::string, Expression>& tags);
	}
	} //end of namespace interpretation

	template<>
	interpretation::InterpretationResolution
	defaultValue<interpretation::InterpretationResolution>();

	template<>
	struct AttachmentsDict<interpretation::FunctionInterpretationData>
	{
	typedef interpretation::FunctionInterpretationData Data;
	static const unsigned int key = 5;
	};

	template<>
	struct AttachmentsDict<interpretation::InterpretationData>
	{
	typedef interpretation::InterpretationData Data;
	static const unsigned int key = 3;
	};

	} //end of namespace xreate


	#endif /* INTERPRETATIONPASS_H */

	diff --git a/cpp/src/pass/latereasoningpass.h b/cpp/src/pass/latereasoningpass.h
	index c005673..6a9cde0 100644
	--- a/cpp/src/pass/latereasoningpass.h
	+++ b/cpp/src/pass/latereasoningpass.h
	@@ -1,179 +1,182 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 7, 2018, 7:20 PM
	*
	* \file latereasoningpass.h
	* \brief latereasoningpass
	*/

	#ifndef LATEREASONINGPASS_H
	#define LATEREASONINGPASS_H

	#include "pass/dfapass.h"

	namespace xreate { namespace latereasoning {

	class LateReasoningScope{
	public:
	LateReasoningScope(LateReasoningScope* parent): __parent(parent){ }

	boost::optional<LateSymbolRecognized>
	recognizeIdentifier(const std::string& identifier){

	//Search identifier in the current scope
	if(__identifiers.count(identifier)){
	return make_pair(identifier, __identifiers.at(identifier));
	}

	//Search in the parent scope
	if(__parent){
	return __parent->recognizeIdentifier(identifier);
	}

	return boost::none;
	}

	void
	addIdentifier(std::string idenName, const SymbolPacked& identSymbol){
	__identifiers.emplace(idenName, identSymbol);
	}

	private:
	std::map<std::string, SymbolPacked> __identifiers;
	LateReasoningScope *__parent;
	};

	+/**
	+ * \note Limitation: Produces late annotation with target as a symbol to which annotation is attached
	+ */
	template<class Parent>
	class LateReasoningDFAPassDecorator: public Parent{
	public:
	LateReasoningDFAPassDecorator(PassManager* manager): Parent(manager){ }

	void
	registerLateScope(CodeScope* scope, LateReasoningScope* scopeLate){
	__dictScopes.emplace(scope, scopeLate);
	}

	private:
	LateReasoningScope*
	liftScope(const CodeScope* scope){
	while(scope){
	if(__dictScopes.count(scope)) return __dictScopes.at(scope);
	scope = scope->__parent;
	}

	return nullptr;
	}

	std::list<LateSymbolRecognized>
	recognizeLateIdentifiers(const Expression& expression, LateReasoningScope* scope){
	std::list<LateSymbolRecognized> result;

	switch(expression.op){
	case Operator::CALL:
	{
	for(const auto& op: expression.operands){
	std::list<LateSymbolRecognized> opResult = recognizeLateIdentifiers(op, scope);
	result.insert(result.end(), opResult.begin(), opResult.end());
	}

	if(!expression.operands.size()){
	if(auto symbolRecognized = scope->recognizeIdentifier(expression.getValueString())){
	result.push_back(*symbolRecognized);
	}
	}
	break;
	}

	case Operator::NEG:
	{
	assert(expression.operands.size() == 1);

	const Expression &op = expression.operands.at(0);
	std::list<LateSymbolRecognized> opResult = recognizeLateIdentifiers(op, scope);
	result.insert(result.end(), opResult.begin(), opResult.end());
	};

	case Operator::INVALID:
	{
	switch(expression.__state){
	case Expression::NUMBER:
	break;

	default:
	assert(true);
	}
	break;
	}

	default: break;
	}

	return result;
	}

	protected:
	virtual SymbolNode process(const Expression& expression, PassContext context, const std::string& varDecl="") override{
	if(expression.__state == Expression::COMPOUND && expression.op == Operator::SWITCH_LATE){
	//Reserve late scope:
	LateReasoningScope* scopeLate = new LateReasoningScope(liftScope(context.scope));
	CodeScope* scopeBody = expression.blocks.front();
	registerLateScope(scopeBody, scopeLate);

	//Assign late identifiers
	for(const std::string& identLate: expression.bindings){
	ScopedSymbol identLateS = scopeBody->getSymbol(identLate);
	SymbolPacked identLateSP = Parent::man->transcend->pack(Symbol{identLateS, scopeBody});

	scopeLate->addIdentifier(identLate, identLateSP);
	}
	}

	return Parent::process(expression, context, varDecl);
	}

	virtual void
	processAnnotations(const Expression& expression,
	PassContext context,
	const SymbolNode& ident){

	LateReasoningScope* scopeLate = liftScope(context.scope);

	if(!expression.tags.size() \|\| !scopeLate)
	return Parent::processAnnotations(expression, context, ident);

	for(const std::pair<std::string, Expression>& tag: expression.tags){
	std::list<LateSymbolRecognized> symbols = recognizeLateIdentifiers(tag.second, scopeLate);
	if(!symbols.size()){
	//Standard compilation
	Parent::graph->printInplaceAnnotation(ident, tag.second);

	} else{
	//Late compilation
	std::list<std::string> domains;
	for(const auto& symbol: symbols){
	Symbol symbolUnpacked = Parent::man->transcend->unpack(symbol.second);
	ExpandedType typSymbol = Parent::man->root->getType(CodeScope::getDefinition(symbolUnpacked));
	assert(typSymbol->__operator == TypeOperator::SLAVE);

	domains.push_back(typSymbol->__valueCustom);
	}

	Parent::graph->printLateAnnotation(ident, tag.second, symbols, domains);
	}
	}
	}

	private:
	std::unordered_map<const CodeScope, LateReasoningScope> __dictScopes;
	};

	}}

	#endif /* LATEREASONINGPASS_H */

	diff --git a/cpp/src/query/latex.cpp b/cpp/src/query/latex.cpp
	index 12f3c65..5fc0816 100644
	--- a/cpp/src/query/latex.cpp
	+++ b/cpp/src/query/latex.cpp
	@@ -1,80 +1,94 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 25, 2018, 12:14 PM
	*
	* \file latex.cpp
	* \brief latex
	*/

	#include "query/latex.h"
	+#include "aux/transcend-decorators.h"
	+
	using namespace std;
	+using namespace xreate::latereasoning;

	namespace xreate{
	namespace latex{

	void
	LatexQuery::init(TranscendLayer* transcend) {
	__transcend = transcend;

	//schema: latex_fn_demand(Fn, Subject)
	- StaticModel data = __transcend->query("latex_fn_demand");
	+ StaticModel data = __transcend->query("latex_fn_demand_ordered");
	for(const auto& entry : data) {
	- string fnName, subject;
	- tie(fnName, subject) = __transcend->parse<string, string>(entry.second);
	- __demand[fnName].push_back(subject);
	+ string fnName, subject; size_t id;
	+ tie(fnName, subject, id) = __transcend->parse<string, string, int>(entry.second);
	+ __demand[fnName].resize(std::max(__demand[fnName].size(), id+1));
	+ __demand[fnName][id] = subject;
	}

	- //schema: Scope, Subject, Decision
	- data = __transcend->query("latex_decision");
	+ //schema: Subject, Decision
	+ data = __transcend->query("latex_registered_subjects");
	for(const auto& entry : data) {
	- ScopePacked scope;
	string subject;
	Gringo::Symbol decision;

	- tie(scope, subject, decision) = __transcend->parse<ScopePacked, string, Gringo::Symbol>(entry.second);
	- __decisions[make_pair(scope, subject)] = decision;
	+ tie(subject, decision) = __transcend->parse<string, Gringo::Symbol>(entry.second);
	+ __domains[subject].push_back(decision);
	}
	-
	- //schema: Subject, Decision
	- data = __transcend->query("latex_registered_subjects");
	+
	+ //schema: Scope, Subject, Decision
	+ data = __transcend->query("latex_decision");
	for(const auto& entry : data) {
	+ ScopePacked scope;
	string subject;
	Gringo::Symbol decision;

	- tie(subject, decision) = __transcend->parse<string, Gringo::Symbol>(entry.second);
	- __domains[subject].push_back(decision);
	+ tie(scope, subject, decision) = __transcend->parse<ScopePacked, string, Gringo::Symbol>(entry.second);
	+ __decisions[make_pair(scope, subject)] = entry.second;
	+ }
	+
	+ auto transcendLate =
	+ Decorators<LateReasoningTranscendDecoratorTag>::getInterface(__transcend);
	+
	+ //Later decisions. schema: Scope, Subject, Decision
	+ LateAnnotationsGroup group = transcendLate->queryLate("latex_decision");
	+ for (auto entry: group.annotations) {
	+ auto key = __transcend->parse<ScopePacked, string>(entry.first);
	+ __decisionsLate.emplace(make_pair(get<0>(key), get<1>(key)), entry.second);
	}
	}

	Demand
	LatexQuery::getFnDemand(const std::string& fnName) {
	if (!__demand.count(fnName)) return Demand();
	return __demand.at(fnName);
	}

	-Gringo::Symbol
	+latereasoning::LateAnnotation
	LatexQuery::getDecision(const std::string& subject, const CodeScope* scopeCaller) {
	ScopePacked scopeP = __transcend->pack(scopeCaller);

	if(__decisions.count(make_pair(scopeP, subject))){
	//found static decision
	- return __decisions.at(make_pair(scopeP, subject));
	+ return LateAnnotation(__decisions.at(make_pair(scopeP, subject)));
	}

	- //... <- вытащить late decision
	+ return __decisionsLate.at(make_pair(scopeP, subject));
	}

	std::list<Gringo::Symbol>
	LatexQuery::getSubjectDomain(const std::string& subject) {
	assert(__domains.count(subject));
	return __domains.at(subject);
	}

	}
	}
	\ No newline at end of file
	diff --git a/cpp/src/query/latex.h b/cpp/src/query/latex.h
	index 7163ef4..89ccf56 100644
	--- a/cpp/src/query/latex.h
	+++ b/cpp/src/query/latex.h
	@@ -1,43 +1,44 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*/

	/**
	* \file query/context.h
	* \brief Represents reasoner's solution on [Context](/w/concepts/context)
	*
	* \class xreate::latex::LatexQuery
	*/

	#ifndef LATEXQUERY_H
	#define LATEXQUERY_H

	#include "transcendlayer.h"
	+#include "aux/latereasoning.h"
	#include <list>

	namespace xreate{
	namespace latex{

	-typedef std::list<std::string> Demand;
	+typedef std::vector<std::string> Demand;

	class LatexQuery: public IQuery{
	public:
	Demand getFnDemand(const std::string& fnName);
	- Gringo::Symbol getDecision(const std::string& subject, const CodeScope* scopeCaller);
	+ latereasoning::LateAnnotation getDecision(const std::string& subject, const CodeScope* scopeCaller);
	std::list<Gringo::Symbol> getSubjectDomain(const std::string& subject);
	void init(TranscendLayer* transcend);

	private:
	TranscendLayer* __transcend;
	std::map<std::string, Demand> __demand;
	std::map<std::pair<ScopePacked, std::string>, Gringo::Symbol> __decisions;
	+ std::map<std::pair<ScopePacked, std::string>, latereasoning::LateAnnotation> __decisionsLate;
	std::map<std::string, std::list<Gringo::Symbol>> __domains;
	};

	}
	}

	-#endif /* LATEXQUERY_H */
	-
	+#endif
	\ No newline at end of file
	diff --git a/cpp/src/query/polymorph.cpp b/cpp/src/query/polymorph.cpp
	index 794b237..52f6aa0 100644
	--- a/cpp/src/query/polymorph.cpp
	+++ b/cpp/src/query/polymorph.cpp
	@@ -1,57 +1,71 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: polymorph.cpp
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on November 9, 2017, 12:14 PM
	*/

	#include "polymorph.h"
	#include "aux/transcend-decorators.h"
	using namespace std;
	-namespace xreate { namespace polymorph {
	+namespace xreate{
	+namespace polymorph{

	const std::string atomPolymorph = "dfa_callguard";

	void
	-PolymorphQuery::init(TranscendLayer* transcend){
	+PolymorphQuery::init(TranscendLayer* transcend) {
	__transcend = transcend;

	StaticModel queryResult = transcend->query(atomPolymorph);
	- if (queryResult.size()){
	- for (auto entry: queryResult){
	- auto answer = TranscendLayer::parse<SymbolNode, Expression>(entry.second);
	+ if (queryResult.size()) {
	+ for (auto entry : queryResult) {
	+ auto answer = TranscendLayer::parse<SymbolNode, Gringo::Symbol>(entry.second);
	SymbolNode symbCaller = std::get<0>(answer);
	SymbolGeneralized symbCallerUnpacked = transcend->unpack(symbCaller);
	- Expression guard = std::get<1>(answer);

	- __cacheEarlyReasoning.emplace(symbCallerUnpacked, guard);
	+ __cacheEarlyReasoning.emplace(symbCallerUnpacked, entry.second);
	}
	}
	+
	+ auto transcendLate =
	+ Decorators<LateReasoningTranscendDecoratorTag>::getInterface(__transcend);
	+ latereasoning::LateAnnotationsGroup group = transcendLate->queryLate(atomPolymorph);
	+
	+ for(auto entry : group.annotations) {
	+ auto targetWrapper = Gringo::Symbol::createTuple(Gringo::SymSpan{&entry.first, 1});
	+ auto targetSP = __transcend->parse<SymbolNode>(targetWrapper);
	+ SymbolGeneralized targetS = __transcend->unpack(std::get<0>(targetSP));
	+ __cacheLateReasoning.emplace(targetS, entry.second);
	+ }
	}

	-Expression
	-PolymorphQuery::get(const Expression& e){
	- SymbolGeneralized symbol=Attachments::exists<SymbolAlias>(e)?
	+latereasoning::LateAnnotation
	+PolymorphQuery::get(const Expression& e) const {
	+ SymbolGeneralized targetS = Attachments::exists<SymbolAlias>(e) ?
	SymbolGeneralized(Attachments::get<SymbolAlias>(e))
	: SymbolGeneralized(SymbolAnonymous{e.id});

	- if (__cacheEarlyReasoning.count(symbol)){
	- return __cacheEarlyReasoning.at(symbol);
	+ if (__cacheEarlyReasoning.count(targetS)) {
	+ return latereasoning::LateAnnotation(__cacheEarlyReasoning.at(targetS));
	}

	- DefaultTranscendLayerImpl* transcendLate = dynamic_cast<DefaultTranscendLayerImpl*>(__transcend);
	- SymbolNode symbolPacked = __transcend->pack(symbol, "");
	+ if (__cacheLateReasoning.count(targetS)) {
	+ return __cacheLateReasoning.at(targetS);
	+ }

	- StaticModel answer = transcendLate->queryLate(atomPolymorph, symbolPacked);
	- assert(answer.size() && "Can't find a guard");
	+ assert(false && "Can't find a guard");
	+}

	- Expression guard;
	- tie(guard) = TranscendLayer::parse<Expression>(answer.begin()->second);
	- return guard;
	+Expression
	+PolymorphQuery::getValue(const Gringo::Symbol& symbol) const {
	+ auto result = __transcend->parse<Gringo::Symbol, Expression>(symbol);
	+ return std::get<1>(result);
	}

	-}} //end of xreate::polymorph
	+}
	+} //end of xreate::polymorph
	diff --git a/cpp/src/query/polymorph.h b/cpp/src/query/polymorph.h
	index 3b28263..f708fe6 100644
	--- a/cpp/src/query/polymorph.h
	+++ b/cpp/src/query/polymorph.h
	@@ -1,32 +1,35 @@
	/*
	* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* File: polymorph.h
	* Author: pgess <v.melnychenko@xreate.org>
	*
	* Created on November 9, 2017, 12:14 PM
	*/

	#ifndef POLYMORPHQUERY_H
	#define POLYMORPHQUERY_H

	#include "transcendlayer.h"
	+#include "aux/latereasoning.h"
	#include <unordered_map>

	namespace xreate { namespace polymorph {
	class PolymorphQuery: public IQuery {
	public:
	+ latereasoning::LateAnnotation get(const Expression& e) const;
	+ Expression getValue(const Gringo::Symbol& s) const;
	virtual void init(TranscendLayer* transcend) override;
	- Expression get(const Expression& e);

	private:
	- std::unordered_map<SymbolGeneralized, Expression> __cacheEarlyReasoning;
	+ std::unordered_map<SymbolGeneralized, Gringo::Symbol> __cacheEarlyReasoning;
	+ std::unordered_map<SymbolGeneralized, latereasoning::LateAnnotation> __cacheLateReasoning;
	TranscendLayer* __transcend = nullptr;
	};

	}}//end of xreate::polymorph

	#endif /* POLYMORPHQUERY_H */

	diff --git a/cpp/src/transcendlayer.cpp b/cpp/src/transcendlayer.cpp
	index 3058778..e960481 100644
	--- a/cpp/src/transcendlayer.cpp
	+++ b/cpp/src/transcendlayer.cpp
	@@ -1,486 +1,496 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* File: transcendlayer.cpp
	*/

	/**
	* \file transcendlayer.h
	* \brief Reasoner. Wrapper over the external Clasp reasoner library
	*/

	#include "transcendlayer.h"
	#include "analysis/utils.h"
	#include "utils.h"

	#include <gringo/scripts.hh>
	#include <boost/format.hpp>
	#include <boost/algorithm/string/join.hpp>
	#include <iostream>
	#include <memory>
	#include <boost/variant/detail/apply_visitor_binary.hpp>

	using namespace std;

	//TODO escape identifiers started with upper case symbol

	namespace xreate{

	bool operator==(const SymbolAnonymous& s1, const SymbolAnonymous& s2) {
	return s1.id == s2.id && s1.flagIsUsed == s2.flagIsUsed;
	}

	struct VisitorSymbolNodeHash : public boost::static_visitor<size_t>{

	std::size_t operator()(const xreate::SymbolPacked& node) const noexcept {
	return 2 * (node.identifier + 3 * node.scope + 5 * std::abs(node.version));
	}

	std::size_t operator()(const xreate::SymbolAnonymous& node) const noexcept {
	return 7 * node.id;
	}
	-};
	+} ;
	}

	namespace std{

	std::size_t
	hash<xreate::SymbolNode>::operator()(xreate::SymbolNode const& s) const noexcept {
	return boost::apply_visitor(xreate::VisitorSymbolNodeHash(), s);
	}

	std::size_t
	hash<xreate::SymbolGeneralized>::operator()(xreate::SymbolGeneralized const& s) const noexcept {
	return xreate::AttachmentsId<xreate::SymbolGeneralized>::getId(s);
	}
	}

	namespace xreate{

	void
	TranscendLayer::printWarnings(std::ostream& out) {
	const std::string warningTag = "warning";

	auto warningsModel = query(warningTag);

	if(warningsModel.size())
	for(auto warning : warningsModel) {
	unsigned int warningId;

	Gringo::Symbol params;
	std::tie(warningId, params) = parse<unsigned int, Gringo::Symbol>(warning.second);

	cout << "Warning: " << __warnings.at(warningId) << " ";
	params.print(out);
	out << params;
	}
	}

	bool
	TranscendLayer::processSolution(Gringo::Model const &model) {
	cout << "Model: " << endl;

	const string& atomBindVar = Config::get("transcend.bindings.variable");
	const string& atomBindFunc = Config::get("transcend.bindings.function");
	const string& atomBindScope = Config::get("transcend.bindings.scope");

	for(Gringo::Symbol atom : model.atoms(clingo_show_type_atoms)) {
	atom.print(cout);
	cout << " \| " << endl;

	string atomName(atom.name().c_str());
	if(atomName == atomBindVar \|\| atomName == atomBindFunc \|\| atomName == atomBindScope) {
	string atomAlias = std::get<1>(parse<Gringo::Symbol, Gringo::Symbol>(atom)).name().c_str();
	__model.emplace(atomAlias, atom);
	continue;
	}

	__model.emplace(atomName, atom);
	}

	return true;
	}

	void
	TranscendLayer::registerReport(IAnalysisReport * report) {
	__reports.push_back(report);
	}

	void
	TranscendLayer::runReports() {
	for(IAnalysisReport* report : __reports) {
	report->print(__partGeneral);
	delete report;
	}

	__reports.clear();
	}

	void
	TranscendLayer::addRuleWarning(const RuleWarning & rule) {
	//__partGeneral << rule << endl;

	list<string> domains;
	boost::format formatDef("%1%(%2%)");
	std::transform(rule.__args.begin(), rule.__args.end(), std::inserter(domains, domains.begin()),
	- [&formatDef](const std::pair<std::string, DomainAnnotation> &argument) {
	- string domain;
	- switch(argument.second) {
	- case DomainAnnotation::FUNCTION:
	- domain = "function";
	- break;
	- case DomainAnnotation::VARIABLE:
	- domain = "variable";
	- break;
	- }
	-
	- return boost::str(formatDef % domain % argument.first);
	- });
	+ [&formatDef](const std::pair<std::string, DomainAnnotation> &argument) {
	+ string domain;
	+ switch(argument.second) {
	+ case DomainAnnotation::FUNCTION:
	+ domain = "function";
	+ break;
	+ case DomainAnnotation::VARIABLE:
	+ domain = "variable";
	+ break;
	+ }
	+
	+ return boost::str(formatDef % domain % argument.first);
	+ });

	list<string> vars;
	std::transform(rule.__args.begin(), rule.__args.end(), std::inserter(vars, vars.begin()),
	- [](const std::pair<std::string, DomainAnnotation> &argument) {
	- return argument.first.c_str();
	- });
	+ [](const std::pair<std::string, DomainAnnotation> &argument) {
	+ return argument.first.c_str();
	+ });

	list<list < string>> guardsRaw;
	std::transform(rule.__guards.begin(), rule.__guards.end(), std::inserter(guardsRaw, guardsRaw.begin()),
	- [this](const Expression & guard) {
	- return xreate::analysis::compile(guard);
	- });
	+ [this](const Expression & guard) {
	+ return xreate::analysis::compile(guard);
	+ });

	const list<string>& guards = xreate::analysis::multiplyLists(std::move(guardsRaw));
	list<string> &&branches = xreate::analysis::compileNeg(rule.__condition);

	boost::format formatWarning("warning(%1%, (%2%)):- %3%, %4%, %5%.");
	for(const string &guardsJoined : guards)
	for(const string &branch : branches) {
	unsigned int hook = registerWarning(string(rule.__message));

	__partGeneral << formatWarning
	- % (hook)
	- % (boost::algorithm::join(vars, ", "))
	- % (branch)
	- % (guardsJoined)
	- % (boost::algorithm::join(domains, ", "))
	- << endl;
	+ % (hook)
	+ % (boost::algorithm::join(vars, ", "))
	+ % (branch)
	+ % (guardsJoined)
	+ % (boost::algorithm::join(domains, ", "))
	+ << endl;
	}
	}

	unsigned int
	TranscendLayer::registerWarning(std::string && message) {
	static int warningId = 0;
	__warnings.emplace(warningId, message);
	return warningId++;
	}

	void
	TranscendLayer::involveImports() {
	ostream &out = __partGeneral;

	if(ast)
	- for(string fn : ast->__rawImports) {
	- std::ifstream file(fn);
	- if(!file) {
	- std::cout << "Can't process script file: " << fn << std::endl;
	- assert(false);
	- }
	-
	- while(!file.eof()) {
	- string line;
	- std::getline(file, line);
	- out << line << endl;
	+ for(string fn : ast->__rawImports) {
	+ std::ifstream file(fn);
	+ if(!file) {
	+ std::cout << "Can't process script file: " << fn << std::endl;
	+ assert(false);
	+ }
	+
	+ while(!file.eof()) {
	+ string line;
	+ std::getline(file, line);
	+ out << line << endl;
	+ }
	}
	- }
	}

	void
	TranscendLayer::addRawScript(std::string && script) {
	__partGeneral << script;
	}

	void
	TranscendLayer::run() {
	involveImports();
	runReports();

	ostringstream program;
	program << __partTags.str() << __partGeneral.str();
	cout << FYEL(program.str()) << endl;

	std::vector<char const *> args{"clingo", nullptr};
	DefaultGringoModule moduleDefault;
	Gringo::Scripts scriptsDefault(moduleDefault);

	ClingoLib ctl(scriptsDefault, 0, args.data(), { }, 0);

	ctl.add("base",{}, program.str());
	ctl.ground({
	{"base",
	- {}}}, nullptr);
	+ {}}
	+ }, nullptr);

	// solve
	Gringo::SolveResult result = ctl.solve([this](Gringo::Model const &model) {
	this->processSolution(model);
	return true;
	- }, {});
	+ },
	+ {
	+ });

	if(result.satisfiable() == Gringo::SolveResult::Satisfiable) {
	cout << FGRN("SUCCESSFULLY") << endl;
	} else {
	cout << FRED("UNSUCCESSFULLY") << endl;
	}

	// invoke all query plugins to process solution
	for(auto q : __queries) {
	q.second->init(this);
	}
	}

	-TranscendLayer::TranscendLayer(): ast(nullptr) { }
	+TranscendLayer::TranscendLayer() : ast(nullptr) { }

	StaticModel
	-TranscendLayer::query(const std::string & atom) const{
	+TranscendLayer::query(const std::string & atom) const {
	StaticModel result;

	- if (! __model.count(atom)){
	+ if (! __model.count(atom)) {
	return result;
	}

	auto currentDataRange = __model.equal_range(atom);
	std::copy(currentDataRange.first, currentDataRange.second, std::inserter(result, result.end()));
	return result;
	}

	ScopePacked
	TranscendLayer::pack(const CodeScope * const scope) {
	auto pos = __indexScopes.emplace(scope, __indexScopes.size());
	if(pos.second)
	__registryScopes.push_back(scope);

	return pos.first->second;
	}

	size_t
	TranscendLayer::getScopesCount() const {
	return __registryScopes.size();
	}

	SymbolPacked
	TranscendLayer::pack(const Symbol& symbol, std::string hintSymbolName) {
	SymbolPacked result(symbol.identifier.id, symbol.identifier.version, pack(symbol.scope));
	__indexSymbolNameHints.emplace(result, hintSymbolName);

	return result;
	}

	Symbol
	-TranscendLayer::unpack(const SymbolPacked & symbol) const{
	+TranscendLayer::unpack(const SymbolPacked & symbol) const {
	return Symbol{ScopedSymbol
	{symbol.identifier, symbol.version}, __registryScopes[symbol.scope]};
	};

	std::string
	TranscendLayer::getHintForPackedSymbol(const SymbolPacked & symbol) {
	auto result = __indexSymbolNameHints.find(symbol);
	return(result == __indexSymbolNameHints.end()) ? "" : result->second;
	}

	IQuery *
	- TranscendLayer::registerQuery(IQuery *query, const QueryId & id) {
	+TranscendLayer::registerQuery(IQuery *query, const QueryId & id) {
	return __queries.emplace(id, query).first->second;
	}

	IQuery *
	- TranscendLayer::getQuery(const QueryId & id) {
	+TranscendLayer::getQuery(const QueryId & id) {
	assert(__queries.count(id) && "Undefined query");
	return __queries.at(id);
	}

	class VisitorUnpackSymbol : public boost::static_visitor<SymbolGeneralized>{
	public:

	VisitorUnpackSymbol(const TranscendLayer* transcend) : __transcend(transcend) { }

	SymbolGeneralized operator()(const SymbolPacked& symbol) const {
	return __transcend->unpack(symbol);
	}

	SymbolGeneralized operator()(const SymbolAnonymous& symbol) const {
	return symbol;
	}

	private:
	const TranscendLayer* __transcend;
	-};
	+} ;

	class VisitorPackSymbol : public boost::static_visitor<SymbolNode>{
	public:

	VisitorPackSymbol(TranscendLayer* transcend, const std::string& hintSymbolName)
	: __transcend(transcend), __hint(hintSymbolName) { }

	SymbolNode operator()(const Symbol& symbol) const {
	return __transcend->pack(symbol, __hint);
	}

	SymbolNode operator()(const SymbolAnonymous& symbol) const {
	return symbol;
	}

	private:
	TranscendLayer* __transcend;
	std::string __hint;
	-};
	+} ;

	SymbolNode
	TranscendLayer::pack(const SymbolGeneralized& symbol, const std::string & hintSymbolName) {
	return boost::apply_visitor(VisitorPackSymbol(this, hintSymbolName), symbol);
	}

	SymbolGeneralized
	-TranscendLayer::unpack(const SymbolNode & symbol) const{
	+TranscendLayer::unpack(const SymbolNode & symbol) const {
	return boost::apply_visitor(VisitorUnpackSymbol(this), symbol);
	}

	bool
	operator==(const SymbolPacked& s1, const SymbolPacked & s2) {
	return s1.identifier == s2.identifier && s1.scope == s2.scope;
	}

	bool
	operator<(const SymbolPacked& s1, const SymbolPacked & s2) {
	return s1.scope < s2.scope \|\| (s1.scope == s2.scope && s1.identifier < s2.identifier);
	}

	Expression
	-ParseImplAtom<Expression>::get(const Gringo::Symbol & atom) {
	+ParseImplAtom<Expression>
	+::get(const Gringo::Symbol & atom) {
	switch(atom.type()) {
	case Gringo::SymbolType::Num: return Expression(atom.num());
	case Gringo::SymbolType::Str: return Expression(Atom<String_t>(std::string(atom.string().c_str())));

	case Gringo::SymbolType::Fun:
	{
	//FUNC
	Expression result(Operator::CALL,{Expression(Atom<Identifier_t>(std::string(atom.name().c_str())))});
	for(const Gringo::Symbol& arg : atom.args()) {
	result.addArg(ParseImplAtom<Expression>::get(arg));
	}

	return result;
	}

	default:
	{
	assert(false);
	}
	}
	}

	int
	-ParseImplAtom<int>::get(const Gringo::Symbol & atom) {
	+ParseImplAtom<int>
	+::get(const Gringo::Symbol & atom) {
	switch(atom.type()) {
	case Gringo::SymbolType::Num: return atom.num();
	default: break;
	}

	assert(false && "Inappropriate symbol type");
	}

	std::string
	-ParseImplAtom<std::string>::get(const Gringo::Symbol & atom) {
	+ParseImplAtom<std::string>
	+::get(const Gringo::Symbol & atom) {
	switch(atom.type()) {
	case Gringo::SymbolType::Str: return atom.string().c_str();
	case Gringo::SymbolType::Fun: return atom.name().c_str();

	default: break;
	}

	assert(false && "Inappropriate symbol type");
	}

	SymbolPacked
	-ParseImplAtom<SymbolPacked>::get(const Gringo::Symbol & atom) {
	+ParseImplAtom<SymbolPacked>
	+::get(const Gringo::Symbol & atom) {
	auto result = TranscendLayer::parse<int, int, int>(atom);
	return SymbolPacked(std::get<0>(result), std::get<1>(result), std::get<2>(result));
	};

	Gringo::Symbol
	-ParseImplAtom<Gringo::Symbol>::get(const Gringo::Symbol & atom) {
	+ParseImplAtom<Gringo::Symbol>
	+::get(const Gringo::Symbol & atom) {
	return atom;
	}

	SymbolNode
	-ParseImplAtom<SymbolNode>::get(const Gringo::Symbol & atom) {
	+ParseImplAtom<SymbolNode>
	+::get(const Gringo::Symbol & atom) {
	assert(atom.type() == Gringo::SymbolType::Fun
	- && "Inappropriate symbol type");
	+ && "Inappropriate symbol type");

	if(atom.name() == "a") {
	return SymbolAnonymous{(unsigned int) std::get<0>(TranscendLayer::parse<int>(atom))};

	} else if(atom.name() == "s") {
	return ParseImplAtom<SymbolPacked>::get(atom);
	}

	assert(false && "Wrong symbol format");
	}

	class VisitorSymbolId : public boost::static_visitor<unsigned int>{
	public:

	unsigned int operator()(const Symbol& symbol) const {
	return AttachmentsId<Symbol>::getId(symbol);
	}

	unsigned int operator()(const SymbolAnonymous& symbol) const {
	return symbol.id;
	}
	-};
	+} ;

	unsigned int
	-AttachmentsId<SymbolGeneralized>::getId(const SymbolGeneralized & symbol) {
	+AttachmentsId<SymbolGeneralized>
	+::getId(const SymbolGeneralized & symbol) {
	return boost::apply_visitor(VisitorSymbolId(), symbol);
	}

	} //end of xreate namespace

	/**
	* \class xreate::TranscendLayer
	* \brief Reasoning and logic Solver.
	*
	* Wraps external brilliant fantastic tool [Clasp solver](https://potassco.org/clasp/)
	*
	* For building logic program for reasoning TranscendLayer takes input from:
	* - Raw scripts. Client could append arbitrary ASP script to _logic program_. \ref addRawScript()
	* - Includes. There is possibility to specify external files with ASP scripts
	* to append to _logic program_. \ref involveImports() (private member)
	* - Diagnostic rules. Rules that produce diagnostic messages during
	* compilation(warnings) or even able to halt compilation with errors.
	* addRuleWarning(), \ref registerWarning()
	* - DFA data. \ref setDFAData()
	* - CFA data. \ref setCFAData()
	* - Dominators Analysis. See xreate::dominators::DominatorsTreeAnalysisProvider.
	* Executed by \ref run()
	* - Context rules. See xreate::ContextRule and general [Context Explanation](/w/concepts/context)
	*
	* Data sources implement xreate::IAnalysisReport. Generally, input could be loosely divided into three categories:
	* - Internally derived data. CFA, DFA, Dominators analyses automatically feed reasoner by
	* useful insights about data, structure and algorithms of a program
	* - User provided data. CFA, DFA, Diagnostic/Context rules feed reasoner by
	* annotations Developer specifically provides manually
	* - External data. Raw scripts and includes feed reasoner with third-party data
	* related to a different aspects of a program possibly produced by external analyzers
	*
	* Once TranscendLayer got input from all providers and logic program is fully constructed
	* it runs external Clasp reasoner and receives back desired solutions.
	*
	* Output of the external Clasp reasoner is recognized and accessed via queries.
	* IQuery represents an interface between reasoner's output and rest of Xreate.
	* Each query inherits xreate::IQuery interface. Currently there are queries as follows:
	* - xreate::containers::Query to catch solutions regarding Containers implementation. See [Containers Explanation](/w/concepts/containers)
	* - xreate::context::ContextQuery to catch solution regarding Context. See [Context Explanation](/w/concepts/context)
	*
	* \sa See xreate::dfa::DFAPass, xreate::cfa::CFAPass, xreate::IQuery, xreate::IAnalysisReport, xreate::dominators::DominatorsTreeAnalysisProvider
	*/
	diff --git a/cpp/src/transcendlayer.h b/cpp/src/transcendlayer.h
	index e52d91d..e657c1c 100644
	--- a/cpp/src/transcendlayer.h
	+++ b/cpp/src/transcendlayer.h
	@@ -1,282 +1,283 @@
	/* This Source Code Form is subject to the terms of the Mozilla Public
	* License, v. 2.0. If a copy of the MPL was not distributed with this
	* file, You can obtain one at http://mozilla.org/MPL/2.0/.
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* File: transcendlayer.h
	*/

	#ifndef transcendLAYER_H
	#define transcendLAYER_H

	#include "ast.h"
	#include "contextrule.h"

	#include <clingo/clingocontrol.hh>
	#include <string>
	#include <climits>
	#include <unordered_map>
	#include <boost/bimap.hpp>
	#include <boost/bimap/multiset_of.hpp>
	#include <boost/optional.hpp>
	#include <boost/scoped_ptr.hpp>
	#include <list>
	#include <limits>

	namespace xreate {

	typedef unsigned int ScopePacked;
	const ScopePacked SCOPE_ABSTRACT_GLOBAL = std::numeric_limits<ScopePacked>::max();

	struct SymbolPacked {
	SymbolPacked(){}
	SymbolPacked(ScopedSymbol i, ScopePacked s): identifier(i.id), version(i.version), scope(s){}
	SymbolPacked(VNameId symbolId, versions::VariableVersion symbolVersion, ScopePacked symbolScope)
	: identifier(symbolId), version(symbolVersion), scope(symbolScope){}

	VNameId identifier;
	versions::VariableVersion version;
	ScopePacked scope;
	};


	bool operator==(const SymbolPacked& s1, const SymbolPacked& s2);
	bool operator<(const SymbolPacked& s1, const SymbolPacked& s2);

	struct SymbolAnonymous {
	unsigned int id;
	bool flagIsUsed = false;
	};

	bool operator==(const SymbolAnonymous& s1, const SymbolAnonymous& s2);

	typedef boost::variant<SymbolAnonymous, SymbolPacked> SymbolNode;

	//DEBT use SymbolGeneralized communicating with Analysis rather than Symbol
	typedef boost::variant<SymbolAnonymous, Symbol> SymbolGeneralized;

	template<>
	struct AttachmentsId<SymbolGeneralized>{
	static unsigned int getId(const SymbolGeneralized& symbol);
	};

	} namespace std {

	template<>
	struct hash<xreate::SymbolNode> {
	std::size_t operator()(xreate::SymbolNode const& s) const noexcept;
	};

	template<>
	struct hash<xreate::SymbolGeneralized> {
	std::size_t operator()(xreate::SymbolGeneralized const& s) const noexcept;
	};
	}

	namespace xreate {

	enum class DFGConnection {
	STRONG, WEAK, PROTOTYPE
	};

	/** \brief Designated to mark analysis results that can be composed as logic program */
	class IAnalysisReport {
	public:
	/** \brief Composes logic program based on analysis data into ASP format and appends to a stream*/
	virtual void print(std::ostringstream& output) const = 0;
	virtual ~IAnalysisReport(){};
	};

	/** \brief Logic program query interface */
	class IQuery {
	public:
	virtual void init(TranscendLayer* transcend) = 0;
	virtual ~IQuery() {}
	};

	enum class QueryId {
	ContainersQuery,
	- PolymorphQuery
	+ PolymorphQuery,
	+ LatexQuery
	};

	namespace dfa{
	class DFAGraph;
	}

	namespace cfa {
	class CFAGraph;
	}

	typedef std::multimap<std::string, Gringo::Symbol> StaticModel;
	typedef StaticModel::const_iterator StaticModelIterator;

	class TranscendLayer {
	friend class ContextRule;

	/*\name Data Providers Management /
	///@{
	public:
	void registerReport(IAnalysisReport* report);
	void runReports();

	/** \brief Appends arbitrary string to logic program
	*/
	void addRawScript(std::string&& script);

	private:
	std::list<IAnalysisReport*> __reports;

	/** Includes external text files to a logic program */
	void involveImports();
	///@}

	/*\name Queries Management /
	///@{
	public:
	/** \brief Adds query. See xreate::IQuery */
	IQuery* registerQuery(IQuery* query, const QueryId& id);

	/** \brief Returns particular query. See xreate::IQuery */
	IQuery* getQuery(const QueryId& id);

	template<class ...Types>
	static std::tuple<Types...> parse(const Gringo::Symbol& atom);
	StaticModel query(const std::string& atom) const;
	size_t getScopesCount() const;
	SymbolPacked pack(const Symbol& symbol, std::string hintSymbolName = "");
	ScopePacked pack(const CodeScope * const scope);
	Symbol unpack(const SymbolPacked& symbol) const;
	SymbolNode pack(const SymbolGeneralized& symbol, const std::string& hintSymbolName);
	SymbolGeneralized unpack(const SymbolNode& symbol) const;
	std::string getHintForPackedSymbol(const SymbolPacked& symbol);
	///@}

	private:
	std::map<QueryId, IQuery*> __queries;
	std::map<SymbolPacked, std::string> __indexSymbolNameHints;
	std::unordered_map<const CodeScope*, unsigned int> __indexScopes;
	std::vector<const CodeScope*> __registryScopes;

	/*\name Diagnostic /
	///@{
	//TODO diagnostic move over to separate provider/query
	public:
	/** \brief Adds diagnostic rule */
	void addRuleWarning(const RuleWarning &rule);

	/** \brief Registers diagnostic messages */
	unsigned int registerWarning(std::string &&message);

	private:
	std::map<unsigned int, std::string> __warnings;
	void printWarnings(std::ostream& out);
	///@}

	///@{
	public:
	TranscendLayer();

	/** \brief Executes reasoning */
	void run();
	///@}
	AST *ast;

	protected:
	virtual bool processSolution(Gringo::Model const &model);

	private:
	StaticModel __model;
	std::ostringstream __partTags;
	std::ostringstream __partGeneral;
	};

	template<class typ>
	struct ParseImplAtom {
	static typ get(const Gringo::Symbol& atom) {
	return atom.num();
	}
	};

	template<>
	struct ParseImplAtom<int> {
	static int get(const Gringo::Symbol& atom);
	};

	template<>
	struct ParseImplAtom<std::string> {
	static std::string get(const Gringo::Symbol& atom);
	};

	template<>
	struct ParseImplAtom<SymbolPacked> {
	static SymbolPacked get(const Gringo::Symbol& atom);
	};

	template<>
	struct ParseImplAtom<SymbolNode> {
	static SymbolNode get(const Gringo::Symbol& atom);
	};

	template<>
	struct ParseImplAtom<Gringo::Symbol> {
	static Gringo::Symbol get(const Gringo::Symbol& atom);
	};

	template<class ItemType>
	struct ParseImplAtom<std::list<ItemType>>{
	static std::list<ItemType>
	get(const Gringo::Symbol& atom){
	bool flagIsList = (atom.type() == Gringo::SymbolType::Fun) && atom.name().empty();
	std::list<ItemType> result;

	if(!flagIsList) {
	//treat as degenerate case: list with a single element
	result.push_back(ParseImplAtom<ItemType>::get(atom));
	return result;
	}

	for (const Gringo::Symbol& arg: atom.args()) {
	result.push_back(ParseImplAtom<ItemType>::get(arg));
	}

	return result;
	}
	};

	template<>
	struct ParseImplAtom<Expression> {
	static Expression get(const Gringo::Symbol& atom);
	};

	template<class Tuple, size_t index>
	struct Parse_Impl {
	static void parse(Tuple& tup, Gringo::SymSpan::iterator arg) {
	const size_t tupleSize = std::tuple_size<Tuple>::value;
	typedef typename std::tuple_element < tupleSize - index, Tuple>::type ElType;

	ElType& el = std::get < tupleSize - index > (tup);

	Gringo::Symbol atom = *arg;
	el = ParseImplAtom<ElType>::get(atom);

	Parse_Impl<Tuple, index - 1 > ::parse(tup, ++arg);
	}
	};

	template<class Tuple>
	struct Parse_Impl<Tuple, 0> {
	static void parse(Tuple& tup, Gringo::SymSpan::iterator arg) {
	}
	};

	template<class ...Types>
	std::tuple<Types...>
	TranscendLayer::parse(const Gringo::Symbol& atom) {
	typedef std::tuple < Types...> Tuple;
	Tuple tup;
	Parse_Impl<Tuple, std::tuple_size<Tuple>::value>::parse(tup, atom.args().first);

	return tup;
	}
	} //end of xreate namespace
	#endif
	diff --git a/cpp/tests/CMakeLists.txt b/cpp/tests/CMakeLists.txt
	index 8124d0b..2d220d4 100644
	--- a/cpp/tests/CMakeLists.txt
	+++ b/cpp/tests/CMakeLists.txt
	@@ -1,55 +1,56 @@
	cmake_minimum_required(VERSION 2.8.11)
	project(xreate-tests)

	find_package(GTest REQUIRED)
	INCLUDE_DIRECTORIES(${GTEST_INCLUDE_DIRS})
	INCLUDE_DIRECTORIES("/usr/include/libxml2")
	INCLUDE_DIRECTORIES($<TARGET_PROPERTY:xreate,INCLUDE_DIRECTORIES>)


	# TESTS
	#=========================
	FIND_PACKAGE (LLVM REQUIRED)
	message("LLVM_LIBRARY_DIRS: " ${LLVM_LIBRARY_DIRS})
	link_directories(${LLVM_LIBRARY_DIRS})

	set (LIBCLASP_PATH ${POTASSCO_PATH}/build/debug)
	link_directories(${LIBCLASP_PATH})

	#aux_source_directory(. TEST_FILES)
	set(TEST_FILES
	+ cfa.cpp
	+ latex.cpp
	+ polymorph.cpp
	transcend.cpp
	- latereasoning.cpp
	+# latereasoning.cpp
	virtualization.cpp
	exploitation.cpp
	effects-communication.cpp
	- polymorph.cpp
	association.cpp
	main.cpp
	modules.cpp
	attachments.cpp
	ast.cpp
	- cfa.cpp
	dfa.cpp
	compilation.cpp
	ExpressionSerializer.cpp
	externc.cpp
	types.cpp
	#vendorsAPI/clangAPI.cpp
	#vendorsAPI/xml2.cpp
	#vendorsAPI/json.cpp

	containers.cpp
	interpretation.cpp
	loops.cpp

	#supplemental/versions-algorithm-data_dependency.cpp
	effects-versions.cpp
	)

	add_executable(${PROJECT_NAME} ${TEST_FILES})
	target_link_libraries(${PROJECT_NAME} xreate ${GTEST_LIBRARIES} pthread xml2 gcov)

	add_custom_target (coverage
	COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/src/code-coverage.sh
	WORKING_DIRECTORY ${CMAKE_BINARY_DIR})
	diff --git a/cpp/tests/cfa.cpp b/cpp/tests/cfa.cpp
	index 002cae2..325ee81 100644
	--- a/cpp/tests/cfa.cpp
	+++ b/cpp/tests/cfa.cpp
	@@ -1,190 +1,224 @@
	/* Any copyright is dedicated to the Public Domain.
	* http://creativecommons.org/publicdomain/zero/1.0/
	*
	- * testsCFG.cpp
	+ * cfa.cpp
	*
	* Created on: Jul 17, 2015
	* Author: pgess <v.melnychenko@xreate.org>
	*/

	#include "xreatemanager.h"
	#include "pass/dfapass.h"
	#include "pass/cfapass.h"
	#include "analysis/DominatorsTreeAnalysisProvider.h"
	#include "analysis/cfagraph.h"

	+#include "pass/compilepass.h"
	+#include "compilation/scopedecorators.h"
	+
	#include "gtest/gtest.h"
	+#include "aux/xreatemanager-decorators.h"
	#include <boost/scoped_ptr.hpp>
	#include <boost/smart_ptr/scoped_array.hpp>
	+#include <boost/format.hpp>

	using namespace xreate;
	using namespace xreate::cfa;
	using namespace std;

	-TEST(CFA, testFunctionAnnotationstranscend){
	+TEST(CFA, testFunctionAnnotations) {
	string&& program =
	"f2 = function::int; annotationF2 {\n"
	" 0\n"
	"}\n"
	"\n"
	"f1 = function:: int; entry; annotationF1 {\n"
	" f2() + 10\n"
	"}";


	details::tier1::XreateManager* man = details::tier1::XreateManager::prepare(move(program));
	man->analyse();

	StaticModel answer = man->transcend->query("annotationF1");
	EXPECT_EQ(1, answer.size());

	answer = man->transcend->query("annotationF2");
	EXPECT_EQ(1, answer.size());
	}

	-TEST(CFA, testLoopContextExists){
	+TEST(CFA, testLoopContextExists) {
	details::tier1::XreateManager* man = details::tier1::XreateManager::prepare (
	"interface(cfa){\n"
	" operator fold:: annotation1.\n"
	"}\n"
	"\n"
	"main = function:: int; entry {\n"
	" x = [1..10]:: [int].\n"
	" sum = loop fold (x->el:: int, 0->sum):: int {\n"
	" el + sum + f1()\n"
	" }. \n"
	" sum\n"
	"}"
	"case context:: annotation1 {"
	" f1 = function::int {\n"
	" x = 0:: int. "
	" x\n"
	" }"
	"}"
	- );
	+ );

	man->analyse();
	StaticModel model = man->transcend->query("annotation1");
	ScopePacked scopeIdActual = std::get<0>(TranscendLayer::parse<ScopePacked>(model.begin()->second));

	CodeScope* scopeEntry = man->root->findFunction("main")->getEntryScope();
	const Expression& exprSum = scopeEntry->getDefinition(scopeEntry->getSymbol("sum"));
	CodeScope* scopeExpected = exprSum.blocks.front();

	ScopePacked scopeIdExpected = man->transcend->pack(scopeExpected);
	ASSERT_EQ(scopeIdExpected, scopeIdActual);
	}

	-TEST(CFA, DependenciesFnCall){
	+TEST(CFA, DependenciesFnCall) {
	details::tier2::XreateManager* man = details::tier2::XreateManager::prepare(
	- R"Code(
	+ R"Code(
	a = function::int{
	seq
	{x = 0:: int. x}
	{x = b():: int. x}::int
	}

	b = function::int {y = 0. y}
	)Code");

	CodeScope* scopeSeq1 = man->root->findFunction("a")->getEntryScope()->getBody().blocks.front();
	CodeScope* scopeSeq2 = *(++man->root->findFunction("a")->getEntryScope()->getBody().blocks.begin());
	CodeScope* scopeB = man->root->findFunction("b")->getEntryScope();

	ScopePacked psSeq1 = man->transcend->pack(scopeSeq1);
	ScopePacked psSeq2 = man->transcend->pack(scopeSeq2);
	ScopePacked psB = man->transcend->pack(scopeB);

	CFAPass* pass = new CFAPass(man);

	man->registerPass(pass, PassId::CFAPass);
	man->executePasses();
	- const CFAGraph* report = dynamic_cast<CFAPassBasic*>(man->getPassById(PassId::CFAPass))->getReport();
	+ const CFAGraph* report = dynamic_cast<CFAPassBasic*> (man->getPassById(PassId::CFAPass))->getReport();
	auto dependencies = report->__dependencyRelations;
	delete pass;

	ASSERT_EQ(1, dependencies.count(psSeq2));
	ASSERT_EQ(1, dependencies.count(psB));
	}

	-TEST(CFA, DependenciesChildScope){
	+TEST(CFA, DependenciesChildScope) {
	details::tier2::XreateManager* man = details::tier2::XreateManager::prepare(
	- R"Code(
	+ R"Code(
	a = function::int{
	seq
	{x = 0:: int. x}
	{x=0::int. if(x>0)::int{1} else {0}}::int
	}
	)Code");

	CodeScope* scopeSeq1 = man->root->findFunction("a")->getEntryScope()->getBody().blocks.front();
	CodeScope* scopeSeq2 = *(++man->root->findFunction("a")->getEntryScope()->getBody().blocks.begin());
	CodeScope* scopeIf1 = scopeSeq2->getBody().blocks.front();
	CodeScope* scopeIf2 = *(++scopeSeq2->getBody().blocks.begin());

	ScopePacked psSeq1 = man->transcend->pack(scopeSeq1);
	ScopePacked psSeq2 = man->transcend->pack(scopeSeq2);
	ScopePacked psIf1 = man->transcend->pack(scopeIf1);
	ScopePacked psIf2 = man->transcend->pack(scopeIf2);

	CFAPass* pass = new CFAPass(man);

	man->registerPass(pass, PassId::CFAPass);
	man->executePasses();
	- const CFAGraph* report = dynamic_cast<CFAPassBasic*>(man->getPassById(PassId::CFAPass))->getReport();
	+ const CFAGraph* report = dynamic_cast<CFAPassBasic*> (man->getPassById(PassId::CFAPass))->getReport();
	auto dependencies = report->__dependencyRelations;
	delete pass;

	ASSERT_EQ(0, dependencies.count(psSeq1));
	ASSERT_EQ(1, dependencies.count(psSeq2));
	ASSERT_EQ(1, dependencies.count(psIf1));
	ASSERT_EQ(1, dependencies.count(psIf2));

	- for(auto rec: dependencies)
	- {
	+ for(auto rec : dependencies) {
	std::cout << rec.first << " " << rec.second << std::endl;
	}
	}

	-
	-TEST(CFA, DomReportOneRoot){
	+TEST(CFA, DomReportOneRoot) {
	std::string program =
	-R"CODE(
	+ R"CODE(
	a = function:: int; entry{
	seq
	{x = 0:: int. x}
	{x = 1:: int. x}::int
	}
	)CODE";

	std::unique_ptr<details::tier2::XreateManager> man(details::tier2::XreateManager::prepare(move(program)));

	CFAPass* pass = new CFAPass(man.get());
	man->registerPass(pass, PassId::CFAPass);
	pass->run();

	ScopePacked scope1 = man->transcend->pack(man->root->findFunction("a")->getEntryScope()->getBody().blocks.front());
	ScopePacked scope2 = man->transcend->pack(*++man->root->findFunction("a")->getEntryScope()->getBody().blocks.begin());

	dominators::DominatorsTreeAnalysisProvider* providerDomAnalysis = new dominators::DominatorsTreeAnalysisProvider();
	providerDomAnalysis->run(pass->getReport());

	- dominators::DominatorsTreeAnalysisProvider::Dominators expectedFDom= {
	- {1, {0, 3}}
	- ,{2, {1, 2}}
	+ dominators::DominatorsTreeAnalysisProvider::Dominators expectedFDom = {
	+ {1,
	+ {0, 3}}
	+ ,
	+ {2,
	+ {1, 2}}
	};

	- dominators::DominatorsTreeAnalysisProvider::Dominators expectedPostDom= {
	- {2, {0, 3}}
	- ,{1, {1, 2}}
	+ dominators::DominatorsTreeAnalysisProvider::Dominators expectedPostDom = {
	+ {2,
	+ {0, 3}}
	+ ,
	+ {1,
	+ {1, 2}}
	};

	auto actualFDom = providerDomAnalysis->getForwardDominators();
	auto actualPostDom = providerDomAnalysis->getPostDominators();

	ASSERT_EQ(expectedFDom, actualFDom);
	ASSERT_EQ(expectedPostDom, actualPostDom);

	delete providerDomAnalysis;
	delete pass;
	}
	+
	+TEST(CFA, ASTCorrespondence_Scope_Bindings_1){
	+ std::string program =
	+R"CODE(
	+ test = function(x::int, y::int):: int; entry{
	+ x + y
	+ }
	+)CODE";
	+
	+ std::unique_ptr<details::tier2::XreateManager> man(details::tier2::XreateManager::prepare(move(program)));
	+ CFAPass* pass = new CFAPass(man.get());
	+ man->registerPass(pass, PassId::CFAPass);
	+ man->executePasses();
	+
	+ testing::internal::CaptureStdout();
	+ man->analyse();
	+ std::string outputActual = testing::internal::GetCapturedStdout();
	+ cout << outputActual << endl;
	+
	+ string outputExpected = "ast_scope_binding(0,0,\"x\")";
	+ ASSERT_NE(std::string::npos, outputActual.find(outputExpected));
	+
	+ outputExpected = "ast_scope_binding(0,1,\"y\")";
	+ ASSERT_NE(std::string::npos, outputActual.find(outputExpected));
	+}
	diff --git a/cpp/tests/interpretation.cpp b/cpp/tests/interpretation.cpp
	index 336f58d..516fc7f 100644
	--- a/cpp/tests/interpretation.cpp
	+++ b/cpp/tests/interpretation.cpp
	@@ -1,531 +1,532 @@
	/* Any copyright is dedicated to the Public Domain.
	* http://creativecommons.org/publicdomain/zero/1.0/
	*
	* interpretation.cpp
	*
	* Created on: -
	* Author: pgess <v.melnychenko@xreate.org>
	*/

	#include "attachments.h"

	using namespace xreate;

	#include "xreatemanager.h"
	#include "compilation/targetinterpretation.h"
	+#include "analysis/interpretation.h"

	#include "gtest/gtest.h"
	#include "boost/scoped_ptr.hpp"

	//#define FRIENDS_INTERPRETATION_TESTS \
	// friend class ::Modules_AST2_Test; \
	// friend class ::Modules_Discovery1_Test; \
	// friend class ::Modules_Solve1_Test;

	#include "pass/interpretationpass.h"

	using namespace xreate::grammar::main;
	using namespace xreate::interpretation;

	TEST(Interpretation, Analysis_StatementIF_1){
	XreateManager* man = XreateManager::prepare(

	R"Code(
	main = function::bool {
	x = "a":: string.

	y = if (x=="b"):: bool; interpretation(force) {
	true

	} else {
	false
	}.

	y
	}
	)Code" );

	InterpretationPass* pass = new InterpretationPass(man);
	pass->run();

	CodeScope* scopeEntry = man->root->findFunction("main")->getEntryScope();
	Symbol symbolY{scopeEntry->getSymbol("y"), scopeEntry};
	InterpretationData& dataSymbolY = Attachments::get<InterpretationData>(symbolY);

	ASSERT_EQ(INTR_ONLY, dataSymbolY.resolution);
	}

	TEST(Interpretation, Compilation_StatementIF_1){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(

	R"Code(
	main = function::int; entry {
	x = "a":: string.

	y = if (x=="b"):: string; interpretation(force) {
	1

	} else {
	0
	}.

	y
	}
	)Code" );

	man->analyse();

	InterpretationPass* pass;
	if (man->isPassRegistered(PassId::InterpretationPass)){
	pass = (InterpretationPass*) man->getPassById(PassId::InterpretationPass);
	} else {
	pass = new InterpretationPass(man);
	pass->run();
	}


	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(0, result);
	}

	TEST(Interpretation, Analysis_StatementIF_InterpretCondition_1){
	XreateManager* man = XreateManager::prepare(

	R"Code(
	main = function(x:: int):: int {
	comm= "inc":: string; interpretation(force).

	y = if (comm == "inc")::int {x+1} else {x}.
	y
	}
	)Code" );

	InterpretationPass* pass = new InterpretationPass(man);
	pass->run();

	CodeScope* scopeEntry = man->root->findFunction("main")->getEntryScope();
	Symbol symbolY{scopeEntry->getSymbol("y"), scopeEntry};
	InterpretationData& dataSymbolY = Attachments::get<InterpretationData>(symbolY);

	ASSERT_EQ(CMPL_ONLY, dataSymbolY.resolution);
	ASSERT_EQ(IF_INTERPRET_CONDITION, dataSymbolY.op);
	}

	TEST(Interpretation, Compilation_StatementIF_InterpretCondition_1){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(

	R"Code(
	main = function(x:: int):: int; entry {
	comm= "inc":: string; interpretation(force).

	y = if (comm == "inc")::int {x+1} else {x}.
	y
	}
	)Code" );

	man->analyse();

	InterpretationPass* pass;
	if (man->isPassRegistered(PassId::InterpretationPass)){
	pass = (InterpretationPass*) man->getPassById(PassId::InterpretationPass);
	} else {
	pass = new InterpretationPass(man);
	pass->run();
	}

	int (main)(int) = (int ()(int))man->run();
	int result = main(1);

	ASSERT_EQ(2, result);
	}

	TEST(Interpretation, Compilation_StatementFOLD_INTERPRET_INPUT_1){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(

	R"Code(
	main = function(x:: int):: int; entry {
	commands = ["inc", "double", "dec"]:: [string]; interpretation(force).

	loop fold(commands->comm::string, x->operand):: int{
	switch(comm)::int

	case ("inc"){
	operand + 1
	}

	case ("dec"){
	operand - 1
	}

	case ("double"){
	operand * 2
	}
	}
	}
	)Code" );

	man->analyse();

	InterpretationPass* pass;
	if (man->isPassRegistered(PassId::InterpretationPass)){
	pass = (InterpretationPass*) man->getPassById(PassId::InterpretationPass);
	} else {
	pass = new InterpretationPass(man);
	pass->run();
	}

	const ManagedFnPtr& funcMain = man->root->findFunction("main");
	InterpretationData& dataBody = Attachments::get<InterpretationData>(funcMain);
	ASSERT_EQ(FOLD_INTERPRET_INPUT, dataBody.op);

	int (main)(int) = (int ()(int))man->run();
	int result = main(10);

	ASSERT_EQ(21, result);
	}

	TEST(Interpretation, StatementCall_RecursionNo_1){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(
	R"Code(
	unwrap = function(data::unknType, keys::unknType):: unknType; interpretation(force){
	loop fold(keys->key::string, data->a):: unknType {
	a[key]
	}
	}

	start = function::num; entry{
	result = unwrap(
	{
	a = {
	b =
	{
	c = "core"
	}
	}
	}, ["a", "b", "c"])::unknType.

	result == "core"
	}
	)Code" );

	man->analyse();

	InterpretationPass* pass;
	if (man->isPassRegistered(PassId::InterpretationPass)){
	pass = (InterpretationPass*) man->getPassById(PassId::InterpretationPass);
	} else {
	pass = new InterpretationPass(man);
	pass->run();
	}

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(1, result);
	}

	TEST(Interpretation, StatementCall_RecursionDirect_1){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(
	R"Code(
	unwrap = function(data:: X):: Y {
	if (data[0] == "a")::Y {0} else {unwrap(data[0])}
	}

	entry = function:: i8; entry {
	unwrap([[[["a"]]]]):: i8; interpretation(force)
	}
	)Code" );

	man->analyse();

	InterpretationPass* pass;
	if (man->isPassRegistered(PassId::InterpretationPass)){
	pass = (InterpretationPass*) man->getPassById(PassId::InterpretationPass);
	} else {
	pass = new InterpretationPass(man);
	pass->run();
	}

	InterpretationResolution resolutionActual = pass->process(man->root->findFunction("unwrap"));
	ASSERT_EQ(ANY, resolutionActual);

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(0, result);
	}

	TEST(Interpretation, StatementCall_RecursionIndirect_1){
	XreateManager* man = XreateManager::prepare(
	R"Code(
	funcA = function(data:: X):: Y {
	if (data == "a")::Y {0} else {funcB(data)}
	}

	funcB = function(data:: X):: Y {
	if (data == "b")::Y {1} else {funcA(data)}
	}

	entry = function:: i8; entry {
	funcA(""):: i8; interpretation(force)
	}
	)Code" );

	InterpretationPass* pass = new InterpretationPass(man);
	ASSERT_DEATH(pass->run(), "Indirect recursion detected");
	}

	TEST(Interpretation, PartialIntr_1){
	XreateManager* man = XreateManager::prepare(
	R"Code(
	evaluate= function(argument:: num, code:: string; interpretation(force)):: num {
	switch(code)::int
	case ("inc") {argument + 1}
	case ("dec") {argument - 1}
	case ("double") {argument * 2}
	}

	main = function::int; entry {
	commands= ["inc", "double", "dec"]:: [string]; interpretation(force).

	loop fold(commands->comm::string, 10->operand):: int{
	evaluate(operand, comm)
	}
	}
	)Code" );

	InterpretationPass* pass = new InterpretationPass(man);
	pass->run();

	ManagedFnPtr fnEvaluate = man->root->findFunction("evaluate");
	InterpretationResolution resFnEvaluate= pass->process(fnEvaluate);
	ASSERT_EQ(CMPL_ONLY, resFnEvaluate);
	ASSERT_TRUE(FunctionInterpretationHelper::needPartialInterpretation(fnEvaluate));

	const Expression& exprLoop = man->root->findFunction("main")->__entry->getBody();
	Symbol symbCallEv{{0, versions::VERSION_NONE}, exprLoop.blocks.front()};
	InterpretationData dataCallEv = Attachments::get<InterpretationData>(symbCallEv);
	ASSERT_EQ(CMPL_ONLY, dataCallEv.resolution);
	ASSERT_EQ(CALL_INTERPRET_PARTIAL, dataCallEv.op);
	}

	TEST(Interpretation, Compilation_PartialIntr_2){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(
	R"Code(
	evaluate= function(argument:: num, code:: string; interpretation(force)):: num {
	switch(code)::int
	case ("inc") {argument + 1}
	case ("dec") {argument - 1}
	case ("double") {argument * 2}
	case default {argument}
	}

	main = function::int; entry {
	commands= ["inc", "double", "dec"]:: [string]; interpretation(force).

	loop fold(commands->comm::string, 10->operand):: int{
	evaluate(operand, comm)
	}
	}
	)Code" );

	man->analyse();
	if (!man->isPassRegistered(PassId::InterpretationPass)){
	InterpretationPass* pass = new InterpretationPass(man);
	pass->run();
	}

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(21, result);
	}

	TEST(Interpretation, PartialIntr_3){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(
	R"Code(
	Command= type variant {INC, DEC, DOUBLE}.

	evaluate= function(argument:: num, code:: Command; interpretation(force)):: num {
	switch variant(code)::int
	case (INC) {argument + 1}
	case (DEC) {argument - 1}
	case (DOUBLE) {argument * 2}
	}

	main = function::int; entry {
	commands= [INC(), DOUBLE(), DEC()]:: [Command]; interpretation(force).

	loop fold(commands->comm::Command, 10->operand):: int{
	evaluate(operand, comm)
	}
	}
	)Code" );

	man->analyse();
	if (!man->isPassRegistered(PassId::InterpretationPass)){
	InterpretationPass* pass = new InterpretationPass(man);
	pass->run();
	}

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(21, result);
	}

	TEST(Interpretation, PartialIntr_4){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(
	R"Code(
	Command= type variant {INC, DEC, DOUBLE}.

	evaluate= function(argument:: num, code:: Command; interpretation(force)):: num {
	switch variant(code)::num
	case (INC) {argument + 1}
	case (DEC) {argument - 1}
	case (DOUBLE) {argument * 2}
	}

	main = function::int; entry {
	evaluate(4, DEC())
	}
	)Code" );

	man->analyse();
	if (!man->isPassRegistered(PassId::InterpretationPass)){
	InterpretationPass* pass = new InterpretationPass(man);
	pass->run();
	}

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(3, result);
	}

	TEST(Interpretation, SwitchVariant){
	xreate::XreateManager* man = xreate::XreateManager::prepare(
	R"Code(
	OneArgument = type{x::int}.
	TWoArgument = type {x::int, y::int}.

	Command= type variant {
	ADD::TwoArguments,
	DEC:: OneArgument,
	DOUBLE::OneArgument
	}.

	main = function::int; entry{
	program = ADD({x=2, y=3})::Command; interpretation(force).

	switch variant(program)::int
	case (ADD) {program["x"]+program["y"]}
	case (DEC) {1}
	case (DOUBLE) {2}
	}
	)Code" );

	int (main)() = (int ()())man->run();
	int result = main();
	ASSERT_EQ(5, result);

	}

	TEST(Interpretation, SwitchVariantAlias){
	xreate::XreateManager* man = xreate::XreateManager::prepare(
	R"Code(
	OneArgument = type{x::int}.
	TWoArgument = type {x::int, y::int}.

	Command= type variant {
	ADD::TwoArguments,
	DEC:: OneArgument,
	DOUBLE::OneArgument
	}.

	main = function::int; entry{
	program = [ADD({x=2, y=3}), DEC({x=8})]::[Command]; interpretation(force).

	switch variant(program[0]->program::Command)::int
	case (ADD) {program["x"]+program["y"]}
	case (DEC) {1}
	case (DOUBLE) {2}
	}
	)Code" );

	int (main)() = (int ()())man->run();
	int result = main();
	ASSERT_EQ(5, result);
	}

	TEST(Interpretation, Multiindex1){
	std::string script2=
	R"Code(
	extract = function(program::unknType)::int; interpretation(force){
	program["arguments"][1]
	}

	main = function::int; entry {
	x = {arguments = [10, 9, 8, 7]}:: unknType; interpretation(force).
	extract(x)
	}
	)Code";

	std::unique_ptr<XreateManager> man(XreateManager::prepare(std::move(script2)));

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(9, result);
	}

	TEST(InterpretationExamples, Regexp1){
	FILE* input = fopen("scripts/dsl/regexp.xreate","r");
	assert(input != nullptr);

	std::unique_ptr<XreateManager> man(XreateManager::prepare(input));

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(4, result);
	}

	TEST(Interpretation, Variant1){
	std::string script=
	R"Code(
	Data = type {Num:: [int], String::string}.

	DataPacked = type variant {
	Var1:: Data,
	Var2:: Data
	}.

	extractInt = function(data::DataPacked):: int {
	resultWrong = 0 :: int.

	switch variant(data)::int
	case (Var1) {data["Num", 0]}
	case (Var2) {resultWrong}
	}

	main = function :: int; entry {
	dataActual = 10.
	dataPacked = Var1({Num = [dataActual], String = "whatever"}):: DataPacked.

	extractInt(dataPacked):: int; interpretation(force)
	}
	)Code";

	std::unique_ptr<XreateManager> man(XreateManager::prepare(std::move(script)));

	int (main)() = (int ()())man->run();
	int result = main();

	ASSERT_EQ(10, result);
	}

	//TOTEST call indirect recursion(w/o tags)
	//TASk implement and test Loop Inf (fix acc types in coco grammar)
	diff --git a/cpp/tests/latereasoning.cpp b/cpp/tests/latereasoning.cpp
	index 7f307c1..fbe8b45 100644
	--- a/cpp/tests/latereasoning.cpp
	+++ b/cpp/tests/latereasoning.cpp
	@@ -1,215 +1,184 @@
	/* Any copyright is dedicated to the Public Domain.
	* http://creativecommons.org/publicdomain/zero/1.0/
	*
	* latereasoning.cpp
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on April 21, 2018, 5:10 PM
	*/

	#include "xreatemanager.h"
	#include "transcendlayer.h"
	#include "pass/latereasoningpass.h"
	#include "aux/latereasoning.h"
	#include "pass/dfapass.h"
	#include <boost/format.hpp>
	#include "gtest/gtest.h"

	+using namespace std;
	using namespace xreate;
	using namespace xreate::latereasoning;

	-TEST(LateReasoning, test2) {
	- FILE* input = fopen("scripts/latereasoning/test2.xreate", "r");
	- assert(input != nullptr);
	-
	- std::unique_ptr<XreateManager> man(XreateManager::prepare(input));
	-
	- int (main)() = (int ()())man->run();
	- int result = main();
	-
	- ASSERT_EQ(3, result);
	-}
	-
	-/**
	- * Test plan:
	- * - add late annotation(several variants)
	- * - define late bindings
	- * - get late variant wrt defined bindings
	- **/
	-
	-TEST(LateReasoning, PutAndGetLateAnnotation1) {
	- #define FORMATSYMBOL(s) (formatSymb % s.identifier % s.version % s.scope).str()
	- typedef LateReasoningTranscendDecorator<TranscendLayer> LRTranscend;
	-
	- Attachments::init<LateBindingT>();
	- Attachments::init<versions::VariableVersion>();
	- std::unique_ptr<LRTranscend> transcend(new LRTranscend());
	-
	- std::unique_ptr<CodeScope> scope(new CodeScope(nullptr));
	- Symbol symbA = scope->addDefinition(Atom<Identifier_t>("a"), Expression());
	- Symbol symbB = scope->addDefinition(Atom<Identifier_t>("b"), Expression());
	- Symbol symbC = scope->addDefinition(Atom<Identifier_t>("c"), Expression());
	- Symbol symbTarget = scope->addDefinition(Atom<Identifier_t>("target"), Expression());
	-
	- SymbolPacked symbpA = transcend->pack(symbA, "a");
	- SymbolPacked symbpB = transcend->pack(symbB, "b");
	- SymbolPacked symbpC = transcend->pack(symbC, "c");
	- SymbolPacked symbpTarget = transcend->pack(symbTarget, "target");
	-
	- boost::format formatSymb("s(%1%,%2%,%3%)");
	- boost::format formatLateAnnotation("late(%1%, (%2%, %3%, %4%), (%5%, %6%, %7%), %8%).");
	-
	- //Add `variant1` variant
	- transcend->addRawScript((formatLateAnnotation
	- % FORMATSYMBOL(symbpTarget)
	- % FORMATSYMBOL(symbpA) % FORMATSYMBOL(symbpB) % FORMATSYMBOL(symbpC)
	- % "guard1" % "guard1" % "guard1"
	- % "result(variant1)"
	- ). str());
	-
	- //Add `result2` variant
	- transcend->addRawScript((formatLateAnnotation
	- % FORMATSYMBOL(symbpTarget)
	- % FORMATSYMBOL(symbpA) % FORMATSYMBOL(symbpB) % FORMATSYMBOL(symbpC)
	- % "guard2" % "guard2" % "guard2"
	- % "result(variant2)"
	- ). str());
	-
	- transcend->run();
	-
	- //Define keys
	- Attachments::put<LateBindingT>(symbA, Expression(Operator::CALL, {Atom<Identifier_t>("guard2")}));
	- Attachments::put<LateBindingT>(symbB, Expression(Operator::CALL, {Atom<Identifier_t>("guard2")}));
	- Attachments::put<LateBindingT>(symbC, Expression(Operator::CALL, {Atom<Identifier_t>("guard2")}));
	-
	- //Fetch late annotation
	- StaticModel answer = transcend->queryLate("result", symbpTarget);
	- ASSERT_EQ(1, answer.size());
	-
	- std::tuple<std::string> answerParsed = transcend->parse<std::string>(answer.begin()->second);
	-
	- ASSERT_STREQ("variant2", std::get<0>(answerParsed).c_str());
	-}
	-
	TEST(LateReasoning, Syntax1) {
	XreateManager* man = XreateManager::prepare(R"Code(
	test = function:: int {
	x = 0::int.
	y1= switch late (x)::int{0}.
	y2= switch late(x+y1->a::int)::int{1}.
	y1+y2
	}
	)Code");

	CodeScope* scope = man->root->findFunction("test")->getEntryScope();
	Expression y1 = scope->getDefinition(scope->getSymbol("y1"));
	Expression y2 = scope->getDefinition(scope->getSymbol("y2"));

	ASSERT_EQ(1, y1.bindings.size());
	ASSERT_STRCASEEQ("x", y1.bindings.at(0).c_str());

	ASSERT_EQ(1, y2.bindings.size());
	ASSERT_STRCASEEQ("a", y2.bindings.at(0).c_str());
	}

	-TEST(LateReasoning, Compilation1){
	- XreateManager* man = XreateManager::prepare(R"Code(
	-Color = type variant{RED, BLUE, GREEN}.
	-
	-test = function:: int; entry {
	- x = RED():: Color.
	- y1= switch late (x):: int
	- {0}.
	- y1
	-}
	-)Code");
	-
	- int (program)() = (int ()())man->run();
	- int result = program();
	-
	- ASSERT_EQ(0, result);
	-}
	-
	-TEST(LateReasoning, LateVariablesRecognition1){
	+TEST(LateReasoning, Pass_DFAPassDec_1){
	typedef LateReasoningTranscendDecorator<TranscendLayer> LRTranscend;

	auto man = details::tier2::XreateManager::prepare(R"Code(
	Dom = type slave dom.

	test = function:: int; entry
	{
	LateIdent = 0:: Dom.
	0:: int; ann1(LateIdent)
	}
	)Code");

	CodeScope* scopeEntry = man->root->findFunction("test")->getEntryScope();
	ScopedSymbol keyS = scopeEntry->getSymbol("LateIdent");
	SymbolPacked keySP = man->transcend->pack(Symbol{keyS, scopeEntry});

	std::shared_ptr<LateReasoningScope> scopeLateEntry(new LateReasoningScope(nullptr));
	scopeLateEntry->addIdentifier("LateIdent", keySP);

	- //Pass information to the late scope
	typedef LateReasoningDFAPassDecorator<dfa::DFAPass> LRDFAPass;
	LRDFAPass* dfaPass = new LRDFAPass(man);
	dfaPass->registerLateScope(scopeEntry, scopeLateEntry.get());

	- //Pass information to the late model
	- Attachments::init<LateBindingT>();
	man->transcend->addRawScript("dom(guard1; guard2).\n");
	- Attachments::put<LateBindingT>(Symbol{keyS, scopeEntry}, Expression(Operator::CALL, {Atom<Identifier_t>("guard1")}));
	-
	+
	man->registerPass(dfaPass, PassId::DFAPass, nullptr);
	man->executePasses();
	+
	+ testing::internal::CaptureStdout();
	man->analyse();
	+ std::string outputActual = testing::internal::GetCapturedStdout();
	+ cout << outputActual << endl;
	+
	+ string outputExpected = "late(s(0,-2,0), (s(1,-2,0)), (LateIdent), ann1(LateIdent)):- dom(LateIdent).";
	+ ASSERT_NE(std::string::npos, outputActual.find(outputExpected));
	+}

	- //Fetch late annotation
	- LRTranscend* transcend = dynamic_cast<LRTranscend*>(man->transcend);
	- SymbolPacked targetSymP = transcend->pack(Symbol{ScopedSymbol::RetSymbol, scopeEntry});
	- StaticModel solution = transcend->queryLate("ann1", targetSymP);
	- ASSERT_EQ(1, solution.size());
	+TEST(LateReasoning, Transcend_LRTransDec_1) {
	+ Attachments::init<versions::VariableVersion>();
	+ typedef LateReasoningTranscendDecorator<TranscendLayer> LRTranscend;
	+ std::unique_ptr<LRTranscend> transcend(new LRTranscend());
	+
	+ std::unique_ptr<CodeScope> scope(new CodeScope(nullptr));
	+ Symbol symbA = scope->addDefinition(Atom<Identifier_t>("a"), Expression());
	+ Symbol symbB = scope->addDefinition(Atom<Identifier_t>("b"), Expression());
	+ Symbol symbC = scope->addDefinition(Atom<Identifier_t>("c"), Expression());
	+ Symbol symbTarget1 = scope->addDefinition(Atom<Identifier_t>("target1"), Expression());
	+ Symbol symbTarget2 = scope->addDefinition(Atom<Identifier_t>("target2"), Expression());

	- std::tuple<std::string> solutionParsed = man->transcend->parse<std::string>(solution.begin()->second);
	- ASSERT_STREQ("guard1", std::get<0>(solutionParsed).c_str());
	-}
	+ SymbolPacked symbpA = transcend->pack(symbA, "a");
	+ SymbolPacked symbpB = transcend->pack(symbB, "b");
	+ SymbolPacked symbpC = transcend->pack(symbC, "c");
	+ SymbolPacked symbTarget1P = transcend->pack(symbTarget1, "target1");
	+ SymbolPacked symbTarget2P = transcend->pack(symbTarget2, "target2");

	-TEST(LateReasoning, Compilation2){
	- auto man = details::tier1::XreateManager::prepare(R"Code(
	- DomLow = type variant {guard1, guard2}.
	- Dom = type slave dom.
	+ boost::format formatSymb("s(%1%,%2%,%3%)");
	+ boost::format formatLateAnnotation1("late(%1%, (%2%, %3%, %4%), (%5%, %6%, %7%), %8%).");
	+ boost::format formatLateAnnotation2("late(%1%, (%2%, %3%), (%4%, %5%), %6%).");
	+ #define FORMATSYMBOL(s) (formatSymb % s.identifier % s.version % s.scope).str()

	- guard:: guard1 {
	- compute = function :: int
	- {0}
	- }
	+ // Ann1, `variant1`
	+ transcend->addRawScript((formatLateAnnotation1
	+ % FORMATSYMBOL(symbTarget1P)
	+ % FORMATSYMBOL(symbpA) % FORMATSYMBOL(symbpB) % FORMATSYMBOL(symbpC)
	+ % "guard1" % "guard1" % "guard1"
	+ % "result(variant1)"
	+ ). str());

	- guard:: guard2 {
	- compute = function :: int
	- {1}
	+ //Ann1 `result2` variant
	+ transcend->addRawScript((formatLateAnnotation1
	+ % FORMATSYMBOL(symbTarget1P)
	+ % FORMATSYMBOL(symbpA) % FORMATSYMBOL(symbpB) % FORMATSYMBOL(symbpC)
	+ % "guard2" % "guard2" % "guard2"
	+ % "result(variant2)"
	+ ). str());
	+
	+ //Ann2 `result3` variant
	+ transcend->addRawScript((formatLateAnnotation2
	+ % FORMATSYMBOL(symbTarget2P)
	+ % FORMATSYMBOL(symbpA) % FORMATSYMBOL(symbpB)
	+ % "guard3" % "guard3"
	+ % "result(variant3)"
	+ ). str());
	+
	+ transcend->run();
	+ LateAnnotationsGroup group = transcend->queryLate("result");
	+ ASSERT_EQ(2, group.annotations.size());
	+
	+ for(const auto& annEntry: group.annotations){
	+ annEntry.first.print(cout);
	+ cout <<endl;
	+
	+ Gringo::SymSpan symbsTuple;
	+ symbsTuple.first = &annEntry.first;
	+ symbsTuple.size = 1;
	+ Gringo::Symbol targetWrapped = Gringo::Symbol::createTuple(symbsTuple);
	+ SymbolPacked targetSP = get<0>(transcend->parse<SymbolPacked>(targetWrapped));
	+ if (targetSP == symbTarget1P){
	+ LateAnnotation ann = annEntry.second;
	+ ASSERT_EQ(2, ann.guardedContent.size());
	+
	+ Expression selector(Operator::CALL, {Atom<Identifier_t>("guard2")});
	+ auto answer = ann.select({selector, selector, selector}man->root, man->transcend);
	+ ASSERT_TRUE(answer);
	+ string answerS = get<0>(transcend->parse<string>(*answer));
	+ ASSERT_STREQ("variant2", answerS.c_str());
	+
	+ } else if (targetSP == symbTarget2P) {
	+ LateAnnotation ann = annEntry.second;
	+ ASSERT_EQ(1, ann.guardedContent.size());
	+
	+ Expression selector(Operator::CALL, {Atom<Identifier_t>("guard3")});
	+ auto answer = ann.select({selector, selector, selector});
	+ ASSERT_TRUE(answer);
	+ ASSERT_STREQ("variant3", get<0>(transcend->parse<string>(*answer)).c_str());
	+
	+ } else {
	+ ASSERT_TRUE(false);
	}
	+ }
	+}
	+
	+TEST(LateReasoning, Compilation1){
	+ XreateManager* man = XreateManager::prepare(R"Code(
	+Color = type variant{RED, BLUE, GREEN}.
	+
	+test = function:: int; entry {
	+ x = RED():: Color.
	+ y1= switch late (x):: int
	+ {0}.
	+ y1
	+}
	+)Code");

	- test = function:: int; entry
	- {
	- xLate = guard2():: DomLow.
	- y1= switch late ((xLate::Dom):: Dom; alias(xLate)):: int
	- {
	- compute():: int; guardkey(xLate)
	- }.
	- y1
	- }
	- )Code");
	-
	- man->transcend->addRawScript(R"RAW(
	- dom(guard1; guard2).
	- late(Target, Key, Variant, dfa_callguard(Variant)):-
	- bind(Target, guardkey(Alias));
	- bind(Key, alias(Alias));
	- dom(Variant).
	- )RAW");
	- man->analyse();
	int (program)() = (int ()())man->run();
	int result = program();

	- ASSERT_EQ(1, result);
	+ ASSERT_EQ(0, result);
	}
	+
	+
	diff --git a/cpp/tests/latex.cpp b/cpp/tests/latex.cpp
	index 4148fe8..54ceff8 100644
	--- a/cpp/tests/latex.cpp
	+++ b/cpp/tests/latex.cpp
	@@ -1,201 +1,298 @@
	/* Any copyright is dedicated to the Public Domain.
	* http://creativecommons.org/publicdomain/zero/1.0/
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on June 25, 2018, 5:42 PM
	*
	* \file latex.cpp
	* \brief Testing of latex
	*/

	#include "xreatemanager.h"
	#include "pass/compilepass.h"
	#include "transcendlayer.h"
	+#include "query/latex.h"
	#include "compilation/latex.h"
	#include "aux/xreatemanager-decorators.h"
	#include "compilation/scopedecorators.h"
	#include "llvmlayer.h"

	#include <boost/format.hpp>
	#include <gtest/gtest.h>

	using namespace xreate::latex;
	+using namespace xreate::latereasoning;
	using namespace xreate::compilation;
	using namespace xreate;
	using namespace std;

	-TEST(Latex, Analysis1) {
	+TEST(Latex, Script_NestedScopePropagation_1) {
	+ std::string program =
	+ R"CODE(
	+ import raw("scripts/cfa/context.lp").
	+ fn = function:: int; entry
	+ {
	+ context:: test1.
	+ if(1==11)::int {2} else {3}
	+ }
	+ )CODE";
	+
	+ std::unique_ptr<details::tier1::XreateManager> man(details::tier1::XreateManager::prepare(move(program)));
	+
	+ CodeScope* blockTrue = man->root->findFunction("fn")->getEntryScope()->getBody().blocks.front();
	+ auto blockTrueP = man->transcend->pack(blockTrue);
	+ boost::format formatAlias("alias(%1%, %2%).");
	+ man->transcend->addRawScript((formatAlias % blockTrueP % "block1").str());
	+ man->transcend->addRawScript(
	+ R"SCRIPT(
	+ success1:- bind_scope(Block1, test1, strong); alias(Block1, block1).
	+ )SCRIPT");
	+ man->analyse();
	+
	+ ASSERT_EQ(1, man->transcend->query("success1").size());
	+}
	+
	+TEST(Latex, Script_DemAndDecision_1) {
	std::string program =
	R"CODE(
	import raw("scripts/cfa/context.lp").

	a = function:: int
	{
	context:: forC(a).
	c()
	}

	b = function:: int
	{
	context:: forC(b).
	c()
	}

	c = function:: int {0}

	main = function:: int; entry
	{
	a() + b()
	}
	)CODE";

	std::unique_ptr<details::tier1::XreateManager> man(details::tier1::XreateManager::prepare(move(program)));

	CodeScope* blockC = man->root->findFunction("c")->getEntryScope();
	auto blockCP = man->transcend->pack(blockC);
	boost::format formatAlias("alias(%1%, %2%).");
	man->transcend->addRawScript((formatAlias % blockCP % "blockC").str());
	man->transcend->addRawScript(
	R"SCRIPT(
	latex_scope_demand(BlockC, forC):- alias(BlockC, blockC).
	latex_registered_subjects(forC, Variant):- bind_scope(_, Variant, strong); Variant = forC(_).
	)SCRIPT");
	man->analyse();

	ASSERT_EQ(1, man->transcend->query("latex_fn_demand").size());
	ASSERT_EQ(2, man->transcend->query("latex_decision").size());
	}

	-TEST(Latex, Compilation1) {
	+TEST(Latex, LatexQuery_getFnDemand_1){
	std::string program =
	R"CODE(
	-
	- a = function:: int
	- {0}
	-
	+ import raw("scripts/cfa/context.lp").
	main = function:: int; entry
	{
	- a()
	+ context:: alias(blockMain).
	+ 0
	}
	)CODE";
	-
	- string script =
	+
	+ std::unique_ptr<details::tier1::XreateManager> man(details::tier1::XreateManager::prepare(move(program)));
	+ man->transcend->addRawScript(
	R"SCRIPT(
	- latex_fn_demand(%1%, subject1).
	- latex_decision(%2%, subject1, 5).
	- latex_registered_subjects(subject1, 1).
	- latex_registered_subjects(subject1, 5).
	- )SCRIPT";
	-
	- typedef LatexBruteFunctionDecorator<compilation::BasicFunctionUnit> FnImpl;
	- typedef LatexBruteScopeDecorator<compilation::CachedScopeDecorator<compilation::BasicCodeScopeUnit>> ScopeImpl;
	+ latex_scope_demand(BlockC, forC):- bind_scope(BlockC, alias(blockMain), strong).
	+ latex_registered_subjects(forC, decisionSome).
	+ )SCRIPT");
	+
	+ LatexQuery* query = new LatexQuery();
	+ man->transcend->registerQuery(query, QueryId::LatexQuery);
	+ man->analyse();
	+
	+ Demand demand = query->getFnDemand("main");
	+ ASSERT_EQ(1, demand.size());
	+ ASSERT_STREQ("forC", demand.front().c_str());
	+}

	+TEST(Latex, LatexQuery_getDecision_static_1){
	+ std::string program =
	+ R"CODE(
	+ import raw("scripts/cfa/context.lp").
	+ a = function:: int {context::decisionSome. c()}
	+ b = function:: int {c()}
	+ c = function:: int {context:: alias(blockC). 0}
	+ )CODE";
	+
	std::unique_ptr<details::tier1::XreateManager> man(details::tier1::XreateManager::prepare(move(program)));
	- ScopePacked scopeMainP = man->transcend->pack(man->root->findFunction("main")->getEntryScope());
	- boost::format format(script);
	- man->transcend->addRawScript((format % "a" % scopeMainP).str());
	- man->transcend->registerQuery(new LatexQuery(), QueryId::LatexQuery);
	+ man->transcend->addRawScript(
	+ R"SCRIPT(
	+ latex_scope_demand(BlockC, forC):- bind_scope(BlockC, alias(blockC), strong).
	+ latex_registered_subjects(forC, decisionSome).
	+ )SCRIPT");
	+
	+ LatexQuery* query = new LatexQuery();
	+ man->transcend->registerQuery(query, QueryId::LatexQuery);
	man->analyse();
	-
	- std::unique_ptr<CompilePass> compiler(new compilation::CompilePassCustomDecorators<FnImpl, ScopeImpl>(man.get()));
	- compiler->run();
	- man->llvm->print();
	+
	+ LateAnnotation decisionLA = query->getDecision("forC", man->root->findFunction("a")->getEntryScope());
	+ auto decisionGS = decisionLA.select({}, man->root, man->transcend);
	+ ASSERT_TRUE(decisionGS);
	+
	+ decisionGS->print(cout);
	+ cout << endl;
	+ auto decisionTuple = man->transcend->parse<Gringo::Symbol, Gringo::Symbol, string>(*decisionGS);
	+ string decision = get<2>(decisionTuple);
	+ ASSERT_STREQ("decisionSome", decision.c_str());
	}
	-
	-TEST(Latex, Full1) {
	+
	+TEST(Latex, Compilation_1) {
	std::string program =
	R"CODE(
	- import raw("scripts/cfa/context.lp").

	- a = function:: int
	- {
	- context:: forC(a).
	- c()
	- }
	-
	- b = function:: int
	- {
	- context:: forC(b).
	- c()
	- }
	-
	- c = function:: int {0}
	+ a = function:: int
	+ {0}

	- main = function:: int; entry
	- {
	- a() + b()
	- }
	+ main = function:: int; entry
	+ {
	+ a()
	+ }
	)CODE";

	string script =
	R"SCRIPT(
	- alias(%1%, scopeC).
	- latex_scope_demand(ScopeC, forC) :- alias(ScopeC, scopeC).
	- latex_registered_subjects(forC, forC(a)).
	- latex_registered_subjects(forC, forC(b)).
	+ latex_fn_demand(%1%, subject1).
	+ latex_decision(%2%, subject1, 5).
	+ latex_registered_subjects(subject1, 1).
	+ latex_registered_subjects(subject1, 5).
	)SCRIPT";

	typedef LatexBruteFunctionDecorator<compilation::BasicFunctionUnit> FnImpl;
	typedef LatexBruteScopeDecorator<compilation::CachedScopeDecorator<compilation::BasicCodeScopeUnit>> ScopeImpl;

	std::unique_ptr<details::tier1::XreateManager> man(details::tier1::XreateManager::prepare(move(program)));
	ScopePacked scopeMainP = man->transcend->pack(man->root->findFunction("main")->getEntryScope());
	- auto scopeCP = man->transcend->pack(man->root->findFunction("c")->getEntryScope());
	boost::format format(script);
	- man->transcend->addRawScript((format %scopeCP).str());
	+ man->transcend->addRawScript((format % "a" % scopeMainP).str());
	man->transcend->registerQuery(new LatexQuery(), QueryId::LatexQuery);
	man->analyse();

	std::unique_ptr<CompilePass> compiler(new compilation::CompilePassCustomDecorators<FnImpl, ScopeImpl>(man.get()));
	compiler->run();
	- man->llvm->print();
	+ man->llvm->initJit();
	+ int(fnMain)() = (int()())man->llvm->getFunctionPointer(compiler->getEntryFunction());
	+ ASSERT_EQ(0, fnMain());
	}

	-TEST(Latex, TransitFn1){
	+//
	+//TEST(Latex, Full1) {
	+// std::string program =
	+// R"CODE(
	+// import raw("scripts/cfa/context.lp").
	+//
	+// a = function:: int
	+// {
	+// context:: forC(a).
	+// c()
	+// }
	+//
	+// b = function:: int
	+// {
	+// context:: forC(b).
	+// c()
	+// }
	+//
	+// c = function:: int {0}
	+//
	+// main = function:: int; entry
	+// {
	+// a() + b()
	+// }
	+// )CODE";
	+//
	+// string script =
	+// R"SCRIPT(
	+// alias(%1%, scopeC).
	+// latex_scope_demand(ScopeC, forC) :- alias(ScopeC, scopeC).
	+// latex_registered_subjects(forC, forC(a)).
	+// latex_registered_subjects(forC, forC(b)).
	+// )SCRIPT";
	+//
	+// typedef LatexBruteFunctionDecorator<compilation::BasicFunctionUnit> FnImpl;
	+// typedef LatexBruteScopeDecorator<compilation::CachedScopeDecorator<compilation::BasicCodeScopeUnit>> ScopeImpl;
	+//
	+// std::unique_ptr<details::tier1::XreateManager> man(details::tier1::XreateManager::prepare(move(program)));
	+// ScopePacked scopeMainP = man->transcend->pack(man->root->findFunction("main")->getEntryScope());
	+// auto scopeCP = man->transcend->pack(man->root->findFunction("c")->getEntryScope());
	+// boost::format format(script);
	+// man->transcend->addRawScript((format %scopeCP).str());
	+// man->transcend->registerQuery(new LatexQuery(), QueryId::LatexQuery);
	+// man->analyse();
	+//
	+// std::unique_ptr<CompilePass> compiler(new compilation::CompilePassCustomDecorators<FnImpl, ScopeImpl>(man.get()));
	+// compiler->run();
	+// man->llvm->print();
	+//}
	+//
	+TEST(Latex, Compilation_TransitFn1){
	std::string program =
	R"CODE(
	import raw("scripts/cfa/context.lp").

	branchA = function:: int
	{
	- context:: sink(a).
	+ context:: sink_a.
	fnTransit()
	}

	branchB = function:: int
	{
	- context:: sink(b).
	+ context:: sink_b.
	fnTransit()
	}

	fnSink = function:: int {0}
	fnTransit = function:: int {fnSink()}

	main = function:: int; entry
	{
	branchA() + branchB()
	}
	)CODE";

	string script =
	- R"SCRIPT(
	- alias(scopeSink, %1%).
	- latex_scope_demand(ScopeSink, sink):- alias(scopeSink, ScopeSink).
	- latex_registered_subjects(sink, sink(a)).
	- latex_registered_subjects(sink, sink(b)).
	- )SCRIPT";
	+R"SCRIPT(
	+ alias(scopeSink, %1%).
	+ latex_scope_demand(ScopeSink, sink):- alias(scopeSink, ScopeSink).
	+ latex_registered_subjects(sink, sink_a).
	+ latex_registered_subjects(sink, sink_b).
	+)SCRIPT";

	typedef LatexBruteFunctionDecorator<compilation::BasicFunctionUnit> FnImpl;
	typedef LatexBruteScopeDecorator<compilation::CachedScopeDecorator<compilation::BasicCodeScopeUnit>> ScopeImpl;

	std::unique_ptr<details::tier1::XreateManager> man(details::tier1::XreateManager::prepare(move(program)));
	- auto scopeSinkP = man->transcend->pack(man->root->findFunction("fnSink")->getEntryScope());
	+ CodeScope* scopeSink = man->root->findFunction("fnSink")->getEntryScope();
	+ auto scopeSinkP = man->transcend->pack(scopeSink);
	+ ScopedSymbol argLatexSS{1, -1};
	+ Symbol argLatexS{argLatexSS, scopeSink};
	+ man->transcend->pack(argLatexS);
	boost::format format(script);
	man->transcend->addRawScript((format %scopeSinkP).str());
	man->transcend->registerQuery(new LatexQuery(), QueryId::LatexQuery);
	man->analyse();

	std::unique_ptr<CompilePass> compiler(new compilation::CompilePassCustomDecorators<FnImpl, ScopeImpl>(man.get()));
	compiler->run();
	man->llvm->print();
	+ man->llvm->initJit();
	+ int(fnMain)() = (int()()) man->llvm->getFunctionPointer(compiler->getEntryFunction());
	+ int valueActual = fnMain();
	+ ASSERT_EQ(0, valueActual);
	}
	\ No newline at end of file
	diff --git a/cpp/tests/polymorph.cpp b/cpp/tests/polymorph.cpp
	index 9dd13f5..d1b0b8c 100644
	--- a/cpp/tests/polymorph.cpp
	+++ b/cpp/tests/polymorph.cpp
	@@ -1,108 +1,146 @@
	/* Any copyright is dedicated to the Public Domain.
	* http://creativecommons.org/publicdomain/zero/1.0/
	*
	* polymorph.cpp
	*
	* Author: pgess <v.melnychenko@xreate.org>
	* Created on October 11, 2017, 8:37 PM
	*/

	#include "xreatemanager.h"
	#include "ast.h"
	#include "transcendlayer.h"
	#include "aux/latereasoning.h"
	#include <list>
	#include "gtest/gtest.h"
	+#include "query/polymorph.h"

	using namespace xreate;
	using namespace xreate::latereasoning;
	+using namespace xreate::polymorph;
	using namespace std;

	TEST(Polymorphs, ast1) {
	xreate::XreateManager* man = xreate::XreateManager::prepare(
	-R"CODE(
	+ R"CODE(
	guard:: a {
	test = function:: int {0}
	}

	guard:: b {
	test = function:: int {1}
	}

	main = function:: int; entry { test() }

	)CODE");

	const std::list<ManagedFnPtr>& specs = man->root->getFunctionSpecializations("test");
	ASSERT_EQ(2, specs.size());

	auto itSpecs = specs.begin();
	ASSERT_EQ("a", (*itSpecs)->guard.getValueString());
	itSpecs++;
	ASSERT_EQ("b", (*itSpecs)->guard.getValueString());
	}

	-TEST(Polymorphs, StaticCall1) {
	+TEST(Polymorphs, PolymorphQuery_Static_1) {
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(
	-R"CODE(
	+ R"CODE(
	import raw("scripts/dfa/polymorphism.lp").

	guard:: a {
	test = function:: int {0}
	}

	guard:: b {
	test = function:: int {1}
	}

	- main = function:: int; entry { test()::int; callguard(b);dfa_polym(ret)}
	+ main = function:: int; entry { test()::int; callguard(b); dfa_polym(ret)}

	)CODE");

	man->analyse();
	- int (main)() = (int ()()) man->run();
	-
	- ASSERT_EQ(1, main());
	+ PolymorphQuery* query = dynamic_cast<PolymorphQuery*> (man->transcend->getQuery(QueryId::PolymorphQuery));
	+
	+ const Expression& bodyE = man->root->findFunction("main")->getEntryScope()->getBody();
	+ LateAnnotation decisionLA = query->get(bodyE);
	+ ASSERT_EQ(1, decisionLA.guardedContent.size());
	+
	+ auto decisionOptSymb = decisionLA.select({}, man->root, man->transcend);
	+ ASSERT_TRUE(decisionOptSymb);
	+
	+ decisionOptSymb->print(cout);
	+ cout << endl;
	+ string guard = query->getValue(*decisionOptSymb).getValueString();
	+ ASSERT_STREQ("b", guard.c_str());
	}

	-TEST(Polymorphs, LateCall1){
	- Attachments::init<LateBindingT>();
	-
	+TEST(Polymorphs, PolymorphQuery_Late_1){
	xreate::details::tier1::XreateManager* man = xreate::details::tier1::XreateManager::prepare(
	R"CODE(
	- guard:: a {
	- test = function:: int {0}
	- }
	-
	- guard:: b {
	- test = function:: int {1}
	- }
	-
	- main = function:: int; entry{
	- key = 0:: int; _guard.
	- if (key == 0)::int {
	- test()::int; dfa_polym(late)
	- } else {0}
	- }
	+ main = function:: int; entry{key= 0:: int; test. key}
	)CODE");

	man->transcend->addRawScript(
	R"RULE(
	- late(SymbRet, list(SymbGuard), list(a), dfa_callguard(a)):-
	- bind(SymbRet, dfa_polym(late));
	- bind(SymbGuard, _guard).
	-
	- late(SymbRet, list(SymbGuard), list(b), dfa_callguard(b)):-
	- bind(SymbRet, dfa_polym(late));
	- bind(SymbGuard, _guard).
	+ late(S, S, a, dfa_callguard(S, a)):-
	+ bind(S, test).
	+
	+ late(S, S, b, dfa_callguard(S, b)):-
	+ bind(S, test).
	)RULE");
	man->analyse();
	+ PolymorphQuery* query = dynamic_cast<PolymorphQuery*> (man->transcend->getQuery(QueryId::PolymorphQuery));

	- CodeScope* scopeMainBody = man->root->findFunction("main")->getEntryScope();
	- Symbol symbKey = Symbol{scopeMainBody->getSymbol("key"), scopeMainBody};
	+ CodeScope* scopeMain = man->root->findFunction("main")->getEntryScope();
	+ Symbol keyS = Symbol{scopeMain->getSymbol("key"), scopeMain};

	- Attachments::put<LateBindingT>(symbKey, Expression(Operator::CALL, {Atom<Identifier_t>("b")}));
	- int (main)() = (int ()()) man->run();
	-
	- ASSERT_EQ(1, main());
	+ Expression keyE = scopeMain->getDefinition(keyS);
	+ latereasoning::LateAnnotation answerLA = query->get(keyE);
	+ auto answerRaw = answerLA.select({Expression(Operator::CALL, {Atom<Identifier_t>("b")})}, man->root, man->transcend);
	+ ASSERT_TRUE(answerRaw);
	+ Expression answerE = query->getValue(*answerRaw);
	+ ASSERT_STREQ("b", answerE.getValueString().c_str());
	}
	+
	+TEST(Polymorphs, PSCU_1){
	+ auto man = details::tier1::XreateManager::prepare(R"Code(
	+ DomLow = type variant {guard1, guard2}.
	+ Dom = type slave dom.
	+
	+ guard:: guard1 {
	+ compute = function :: int
	+ {0}
	+ }
	+
	+ guard:: guard2 {
	+ compute = function :: int
	+ {1}
	+ }
	+
	+ test = function:: int; entry
	+ {
	+ xLate = guard2():: DomLow.
	+ y1= switch late ((xLate::Dom):: Dom; alias(xLate)):: int
	+ {
	+ compute():: int; guardkey(xLate)
	+ }.
	+ y1
	+ }
	+ )Code");
	+
	+ man->transcend->addRawScript(R"RAW(
	+ dom(guard1; guard2).
	+ late(Target, Key, Variant, dfa_callguard(Target, Variant)):-
	+ bind(Target, guardkey(Alias));
	+ bind(Key, alias(Alias));
	+ dom(Variant).
	+ )RAW");
	+ man->analyse();
	+ int (program)() = (int ()())man->run();
	+ int result = program();
	+
	+ ASSERT_EQ(1, result);
	+}
	\ No newline at end of file
	diff --git a/cpp/tests/types.cpp b/cpp/tests/types.cpp
	index 5d3c9f5..d71319c 100644
	--- a/cpp/tests/types.cpp
	+++ b/cpp/tests/types.cpp
	@@ -1,235 +1,236 @@
	/* Any copyright is dedicated to the Public Domain.
	* http://creativecommons.org/publicdomain/zero/1.0/
	*
	* types.cpp
	*
	* Created on: Jun 4, 2015
	* Author: pgess <v.melnychenko@xreate.org>
	*/

	#include "gtest/gtest.h"
	#include "xreatemanager.h"
	#include "llvmlayer.h"
	#include "main/Parser.h"
	#include "transcendlayer.h"
	#include "analysis/typeinference.h"
	+#include "analysis/interpretation.h"

	using namespace std;
	using namespace xreate;
	using namespace xreate::grammar::main;

	TEST(Types, DependantTypes1) {
	string&& code = "XmlNode = type {\n"
	- " tag:: string,\n"
	- " attrs:: [string], \n"
	- " content:: string\n"
	- "}.\n";
	+ " tag:: string,\n"
	+ " attrs:: [string], \n"
	+ " content:: string\n"
	+ "}.\n";

	std::unique_ptr<XreateManager> program(XreateManager::prepare(move(code)));
	ExpandedType typeXmlNode = program->root->findType("XmlNode");

	ASSERT_EQ(TypeOperator::LIST_NAMED, typeXmlNode->__operator);
	ASSERT_EQ(3, typeXmlNode->__operands.size());
	ASSERT_EQ(TypePrimitive::String, typeXmlNode->__operands.at(0).__value);
	ASSERT_EQ(TypeOperator::LIST, typeXmlNode->__operands.at(1).__operator);
	ASSERT_EQ(TypePrimitive::String, typeXmlNode->__operands.at(2).__value);
	}

	TEST(Types, ast_ParameterizedTypes_FeatureTypeIndex_1) {
	string&& code = "XmlNode = type {\n"
	- " tag:: string,\n"
	- " attrs:: [string],\n"
	- " content:: string\n"
	- "}.\n"
	- ""
	- "Template = type(Leaf) {Leaf, [Leaf[content]]}."
	- "Concrete = type Template(XmlNode).";
	+ " tag:: string,\n"
	+ " attrs:: [string],\n"
	+ " content:: string\n"
	+ "}.\n"
	+ ""
	+ "Template = type(Leaf) {Leaf, [Leaf[content]]}."
	+ "Concrete = type Template(XmlNode).";

	std::unique_ptr<XreateManager> program(XreateManager::prepare(move(code)));
	ExpandedType typeConcrete = program->root->findType("Concrete");

	ASSERT_EQ(TypeOperator::LIST_NAMED, typeConcrete->__operator);
	ASSERT_EQ(2, typeConcrete->__operands.size());
	ASSERT_EQ(TypeOperator::LIST_NAMED, typeConcrete->__operands.at(0).__operator);

	ASSERT_EQ(TypeOperator::LIST, typeConcrete->__operands.at(1).__operator);
	ASSERT_EQ(TypePrimitive::String, typeConcrete->__operands.at(1).__operands.at(0).__value);
	}

	TEST(Types, TreeType1) {
	string&& code = "XmlNode = type {\n"
	- " tag:: string,\n"
	- " attrs:: [string],\n"
	- " content:: string\n"
	- "}.\n"
	- ""
	- "Tree = type(Leaf) {Leaf, [Tree(Leaf)]}."
	- "Concrete = type Tree(XmlNode).";
	+ " tag:: string,\n"
	+ " attrs:: [string],\n"
	+ " content:: string\n"
	+ "}.\n"
	+ ""
	+ "Tree = type(Leaf) {Leaf, [Tree(Leaf)]}."
	+ "Concrete = type Tree(XmlNode).";

	std::unique_ptr<XreateManager> program(XreateManager::prepare(move(code)));
	ExpandedType typeConcrete = program->root->findType("Concrete");

	ASSERT_EQ(TypeOperator::LIST_NAMED, typeConcrete->__operator);
	ASSERT_EQ(2, typeConcrete->__operands.size());
	ASSERT_EQ(TypeOperator::LIST_NAMED, typeConcrete->__operands.at(0).__operator);

	ASSERT_EQ(TypeOperator::LIST, typeConcrete->__operands.at(1).__operator);

	auto typeLink = typeConcrete->__operands.at(1).__operands.at(0);
	ASSERT_EQ(TypeOperator::LINK, typeLink.__operator);
	ASSERT_EQ(typeConcrete->conjuctionId, typeLink.conjuctionId);
	}

	TEST(Types, TreeType1LLvm) {
	string&& code = "XmlNode = type {\n"
	- " tag:: string,\n"
	- " /* attrs:: [string],*/\n"
	- " content:: string\n"
	- "}.\n"
	- ""
	- "Tree = type(Leaf) {Leaf, [Tree(Leaf)]}."
	- "Concrete = type Tree(XmlNode).";
	+ " tag:: string,\n"
	+ " /* attrs:: [string],*/\n"
	+ " content:: string\n"
	+ "}.\n"
	+ ""
	+ "Tree = type(Leaf) {Leaf, [Tree(Leaf)]}."
	+ "Concrete = type Tree(XmlNode).";

	std::unique_ptr<XreateManager> program(XreateManager::prepare(move(code)));
	ExpandedType typeConcrete = program->root->findType("Concrete");

	llvm::Type* raw = program->llvm->toLLVMType(typeConcrete);
	}

	TEST(Types, ArrayOfExternal1) {
	FILE* input = fopen("scripts/containers/Containers_Implementation_LinkedList1.xreate", "r");
	assert(input != nullptr);

	Scanner scanner(input);
	Parser parser(&scanner);

	parser.Parse();
	AST* ast = parser.root->finalize();

	CodeScope* body = ast->findFunction("test")->getEntryScope();

	const ExpandedType& t2 = ast->getType(body->getDefinition(body->getSymbol("childrenRaw")));
	EXPECT_EQ(t2->__operator, TypeOperator::LIST);
	}

	TEST(Types, ExternType1) {
	FILE* input = fopen("scripts/containers/Containers_Implementation_LinkedList1.xreate", "r");
	assert(input != nullptr);

	Scanner scanner(input);
	Parser parser(&scanner);
	parser.Parse();

	AST* ast = parser.root->finalize();
	CodeScope* body = ast->findFunction("test")->getEntryScope();

	const ExpandedType& t2 = ast->getType(body->getDefinition(body->getSymbol("tree")));
	EXPECT_EQ(t2->__operator, TypeOperator::CUSTOM);
	}

	TEST(Types, ast_VariantType1) {
	string&& code =
	- " colors = type variant {RED, BLUE, GREEN}.\n"
	- " test = function:: colors; entry {GREEN()}";
	+ " colors = type variant {RED, BLUE, GREEN}.\n"
	+ " test = function:: colors; entry {GREEN()}";

	std::unique_ptr<XreateManager> program(XreateManager::prepare(move(code)));

	ExpandedType typ = program->root->findType("colors");
	EXPECT_EQ(TypeOperator::VARIANT, typ->__operator);

	Expression eRed = program->root->findFunction("test")->getEntryScope()->getBody();
	EXPECT_EQ(Operator::VARIANT, eRed.op);

	const ExpandedType& typ2 = program->root->getType(eRed);
	EXPECT_EQ(TypeOperator::VARIANT, typ2->__operator);
	}

	TEST(Types, full_VariantType_Switch1) {
	string&& code =
	- "colors = type variant{RED, BLUE, GREEN}. \n"
	- " test = function:: colors {GREEN()} \n"
	+ "colors = type variant{RED, BLUE, GREEN}. \n"
	+ " test = function:: colors {GREEN()} \n"

	- "main = function:: int; entry { \n"
	- " switch(test()):: int \n"
	- " case (GREEN()) {0} \n"
	- " case default {1} \n"
	- "}";
	+ "main = function:: int; entry { \n"
	+ " switch(test()):: int \n"
	+ " case (GREEN()) {0} \n"
	+ " case default {1} \n"
	+ "}";

	XreateManager* man = XreateManager::prepare(move(code));
	int (main)() = (int ()()) man->run();

	EXPECT_EQ(0, main());
	}

	TEST(Types, ast_VariantType2) {
	std::string script =
	- R"Code(
	+ R"Code(
	Annotation = type
	variant {
	Num:: int,
	String:: string,
	Func:: {name::string, arguments::[Expression]}
	}.
	)Code";

	std::unique_ptr<XreateManager> program(XreateManager::prepare(move(script)));
	ExpandedType typ = program->root->findType("Annotation");
	ASSERT_EQ(3, typ.get().fields.size());
	}

	TEST(Types, SlaveTypes_UnwrapSlaveType1) {
	auto man = details::tier1::XreateManager::prepare(R"Code(
	AtomNumT = type slave atomNumT.
	AtomStrT = type slave atomStrT.
	CmpndIntStrT = type slave cmpndIntStrT.

	VariantT = type slave variantT.

	VariantComplicatedT = type slave variantComplicatedT.
	)Code");

	man->transcend->addRawScript(R"RAW(
	atomNumT(5). atomNumT(8).
	atomStrT("a"). atomStrT("b").
	cmpndIntStrT(1, "a").
	cmpndIntStrT(2, "b").

	variantT(first).
	variantT(second).
	variantT(third).

	variantComplicatedT(first(1, "a")).
	variantComplicatedT(second("b")).
	)RAW");

	man->analyse();
	ExpandedType AtomNumT = man->root->findType("AtomNumT");
	ASSERT_EQ(AtomNumT->__operator, TypeOperator::SLAVE);

	- ExpandedType ContentAtomNumT = typeinference::dereferenceSlaveType(AtomNumT, man->transcend);
	+ ExpandedType ContentAtomNumT = interpretation::dereferenceSlaveType(AtomNumT, man->transcend);
	ASSERT_EQ(TypePrimitive::Num, ContentAtomNumT->__value);

	ExpandedType AtomStrT = man->root->findType("AtomStrT");
	- ExpandedType ContentAtomStrT = typeinference::dereferenceSlaveType(AtomStrT,
	- man->transcend);
	+ ExpandedType ContentAtomStrT = interpretation::dereferenceSlaveType(AtomStrT,
	+ man->transcend);
	ASSERT_EQ(TypePrimitive::String, ContentAtomStrT->__value);

	ExpandedType CmpndIntStrT = man->root->findType("CmpndIntStrT");
	- ExpandedType ContentCmpndIntStrT = typeinference::dereferenceSlaveType(CmpndIntStrT,
	- man->transcend);
	+ ExpandedType ContentCmpndIntStrT = interpretation::dereferenceSlaveType(CmpndIntStrT,
	+ man->transcend);
	ASSERT_EQ(TypeOperator::LIST_NAMED, ContentCmpndIntStrT->__operator);
	ASSERT_EQ(2, ContentCmpndIntStrT->__operands.size());

	ExpandedType VariantT = man->root->findType("VariantT");
	- ExpandedType ContentVariantT = typeinference::dereferenceSlaveType(VariantT,
	- man->transcend);
	+ ExpandedType ContentVariantT = interpretation::dereferenceSlaveType(VariantT,
	+ man->transcend);
	ASSERT_EQ(TypeOperator::VARIANT, ContentVariantT->__operator);
	ASSERT_EQ(3, ContentVariantT->fields.size());

	ExpandedType VariantComplicatedT = man->root->findType("VariantComplicatedT");
	- ExpandedType ContentVariantComplicatedT = typeinference::dereferenceSlaveType(VariantComplicatedT,
	- man->transcend);
	+ ExpandedType ContentVariantComplicatedT = interpretation::dereferenceSlaveType(VariantComplicatedT,
	+ man->transcend);
	ASSERT_EQ(TypeOperator::VARIANT, ContentVariantComplicatedT->__operator);
	ASSERT_EQ(2, ContentVariantComplicatedT->fields.size());
	ASSERT_EQ(2, ContentVariantComplicatedT->__operands.at(0).__operands.size());
	}
	\ No newline at end of file
	diff --git a/documentation-api/AST-correspondence.fods b/documentation-api/AST-correspondence.fods
	new file mode 100644
	index 0000000..159b180
	--- /dev/null
	+++ b/documentation-api/AST-correspondence.fods
	@@ -0,0 +1,558 @@
	+<?xml version="1.0" encoding="UTF-8"?>
	+
	+<office:document xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:presentation="urn:oasis:names:tc:opendocument:xmlns:presentation:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:config="urn:oasis:names:tc:opendocument:xmlns:config:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:drawooo="http://openoffice.org/2010/draw" xmlns:calcext="urn:org:documentfoundation:names:experimental:calc:xmlns:calcext:1.0" xmlns:loext="urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2" office:mimetype="application/vnd.oasis.opendocument.spreadsheet">
	+ <office:meta><meta:creation-date>2018-08-02T18:59:05.238218130</meta:creation-date><meta:generator>LibreOffice/6.0.4.2$Linux_X86_64 LibreOffice_project/00m0$Build-2</meta:generator><dc:date>2018-08-15T21:01:52.425281983</dc:date><meta:editing-duration>PT4H11M37S</meta:editing-duration><meta:editing-cycles>4</meta:editing-cycles><meta:document-statistic meta:table-count="1" meta:cell-count="57" meta:object-count="0"/></office:meta>
	+ <office:settings>
	+ <config:config-item-set config:name="ooo:view-settings">
	+ <config:config-item config:name="VisibleAreaTop" config:type="int">0</config:config-item>
	+ <config:config-item config:name="VisibleAreaLeft" config:type="int">0</config:config-item>
	+ <config:config-item config:name="VisibleAreaWidth" config:type="int">38555</config:config-item>
	+ <config:config-item config:name="VisibleAreaHeight" config:type="int">17596</config:config-item>
	+ <config:config-item-map-indexed config:name="Views">
	+ <config:config-item-map-entry>
	+ <config:config-item config:name="ViewId" config:type="string">view1</config:config-item>
	+ <config:config-item-map-named config:name="Tables">
	+ <config:config-item-map-entry config:name="Sheet1">
	+ <config:config-item config:name="CursorPositionX" config:type="int">1</config:config-item>
	+ <config:config-item config:name="CursorPositionY" config:type="int">21</config:config-item>
	+ <config:config-item config:name="HorizontalSplitMode" config:type="short">0</config:config-item>
	+ <config:config-item config:name="VerticalSplitMode" config:type="short">0</config:config-item>
	+ <config:config-item config:name="HorizontalSplitPosition" config:type="int">0</config:config-item>
	+ <config:config-item config:name="VerticalSplitPosition" config:type="int">0</config:config-item>
	+ <config:config-item config:name="ActiveSplitRange" config:type="short">2</config:config-item>
	+ <config:config-item config:name="PositionLeft" config:type="int">0</config:config-item>
	+ <config:config-item config:name="PositionRight" config:type="int">0</config:config-item>
	+ <config:config-item config:name="PositionTop" config:type="int">0</config:config-item>
	+ <config:config-item config:name="PositionBottom" config:type="int">0</config:config-item>
	+ <config:config-item config:name="ZoomType" config:type="short">0</config:config-item>
	+ <config:config-item config:name="ZoomValue" config:type="int">100</config:config-item>
	+ <config:config-item config:name="PageViewZoomValue" config:type="int">60</config:config-item>
	+ <config:config-item config:name="ShowGrid" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="AnchoredTextOverflowLegacy" config:type="boolean">false</config:config-item>
	+ </config:config-item-map-entry>
	+ </config:config-item-map-named>
	+ <config:config-item config:name="ActiveTable" config:type="string">Sheet1</config:config-item>
	+ <config:config-item config:name="HorizontalScrollbarWidth" config:type="int">585</config:config-item>
	+ <config:config-item config:name="ZoomType" config:type="short">0</config:config-item>
	+ <config:config-item config:name="ZoomValue" config:type="int">100</config:config-item>
	+ <config:config-item config:name="PageViewZoomValue" config:type="int">60</config:config-item>
	+ <config:config-item config:name="ShowPageBreakPreview" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="ShowZeroValues" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="ShowNotes" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="ShowGrid" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="GridColor" config:type="long">12632256</config:config-item>
	+ <config:config-item config:name="ShowPageBreaks" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="HasColumnRowHeaders" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="HasSheetTabs" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="IsOutlineSymbolsSet" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="IsValueHighlightingEnabled" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="IsSnapToRaster" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="RasterIsVisible" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="RasterResolutionX" config:type="int">1270</config:config-item>
	+ <config:config-item config:name="RasterResolutionY" config:type="int">1270</config:config-item>
	+ <config:config-item config:name="RasterSubdivisionX" config:type="int">1</config:config-item>
	+ <config:config-item config:name="RasterSubdivisionY" config:type="int">1</config:config-item>
	+ <config:config-item config:name="IsRasterAxisSynchronized" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="AnchoredTextOverflowLegacy" config:type="boolean">false</config:config-item>
	+ </config:config-item-map-entry>
	+ </config:config-item-map-indexed>
	+ </config:config-item-set>
	+ <config:config-item-set config:name="ooo:configuration-settings">
	+ <config:config-item config:name="SyntaxStringRef" config:type="short">7</config:config-item>
	+ <config:config-item config:name="AllowPrintJobCancel" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="SaveVersionOnClose" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="IsKernAsianPunctuation" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="CharacterCompressionType" config:type="short">0</config:config-item>
	+ <config:config-item config:name="ApplyUserData" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="PrinterSetup" config:type="base64Binary">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</config:config-item>
	+ <config:config-item config:name="PrinterName" config:type="string">Lexmark-X656de</config:config-item>
	+ <config:config-item config:name="AutoCalculate" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="LinkUpdateMode" config:type="short">3</config:config-item>
	+ <config:config-item config:name="HasColumnRowHeaders" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="LoadReadonly" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="UpdateFromTemplate" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="ShowZeroValues" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="GridColor" config:type="long">12632256</config:config-item>
	+ <config:config-item config:name="ShowPageBreaks" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="ShowGrid" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="IsOutlineSymbolsSet" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="IsDocumentShared" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="ShowNotes" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="EmbedFonts" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="HasSheetTabs" config:type="boolean">true</config:config-item>
	+ <config:config-item config:name="RasterSubdivisionY" config:type="int">1</config:config-item>
	+ <config:config-item config:name="RasterIsVisible" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="RasterResolutionX" config:type="int">1270</config:config-item>
	+ <config:config-item config:name="RasterResolutionY" config:type="int">1270</config:config-item>
	+ <config:config-item config:name="IsSnapToRaster" config:type="boolean">false</config:config-item>
	+ <config:config-item config:name="RasterSubdivisionX" config:type="int">1</config:config-item>
	+ <config:config-item config:name="IsRasterAxisSynchronized" config:type="boolean">true</config:config-item>
	+ </config:config-item-set>
	+ </office:settings>
	+ <office:scripts>
	+ <office:script script:language="ooo:Basic">
	+ <ooo:libraries xmlns:ooo="http://openoffice.org/2004/office" xmlns:xlink="http://www.w3.org/1999/xlink">
	+ <ooo:library-embedded ooo:name="Standard"/>
	+ </ooo:libraries>
	+ </office:script>
	+ </office:scripts>
	+ <office:font-face-decls>
	+ <style:font-face style:name="Liberation Sans" svg:font-family="'Liberation Sans'" style:font-family-generic="swiss" style:font-pitch="variable"/>
	+ <style:font-face style:name="DejaVu Sans" svg:font-family="'DejaVu Sans'" style:font-family-generic="system" style:font-pitch="variable"/>
	+ <style:font-face style:name="Droid Sans Fallback" svg:font-family="'Droid Sans Fallback'" style:font-family-generic="system" style:font-pitch="variable"/>
	+ <style:font-face style:name="FreeSans" svg:font-family="FreeSans" style:font-family-generic="system" style:font-pitch="variable"/>
	+ </office:font-face-decls>
	+ <office:styles>
	+ <style:default-style style:family="table-cell">
	+ <style:paragraph-properties style:tab-stop-distance="36pt"/>
	+ <style:text-properties style:font-name="Liberation Sans" fo:language="en" fo:country="US" style:font-name-asian="DejaVu Sans" style:language-asian="zh" style:country-asian="CN" style:font-name-complex="DejaVu Sans" style:language-complex="hi" style:country-complex="IN"/>
	+ </style:default-style>
	+ <number:number-style style:name="N0">
	+ <number:number number:min-integer-digits="1"/>
	+ </number:number-style>
	+ <style:style style:name="Default" style:family="table-cell">
	+ <style:text-properties style:font-name-asian="Droid Sans Fallback" style:font-family-asian="'Droid Sans Fallback'" style:font-family-generic-asian="system" style:font-pitch-asian="variable" style:font-name-complex="FreeSans" style:font-family-complex="FreeSans" style:font-family-generic-complex="system" style:font-pitch-complex="variable"/>
	+ </style:style>
	+ <style:style style:name="Heading" style:family="table-cell" style:parent-style-name="Default">
	+ <style:text-properties fo:color="#000000" fo:font-size="24pt" fo:font-style="normal" fo:font-weight="bold"/>
	+ </style:style>
	+ <style:style style:name="Heading_20_1" style:display-name="Heading 1" style:family="table-cell" style:parent-style-name="Heading">
	+ <style:text-properties fo:color="#000000" fo:font-size="18pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Heading_20_2" style:display-name="Heading 2" style:family="table-cell" style:parent-style-name="Heading">
	+ <style:text-properties fo:color="#000000" fo:font-size="12pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Text" style:family="table-cell" style:parent-style-name="Default"/>
	+ <style:style style:name="Note" style:family="table-cell" style:parent-style-name="Text">
	+ <style:table-cell-properties fo:background-color="#ffffcc" style:diagonal-bl-tr="none" style:diagonal-tl-br="none" fo:border="0.74pt solid #808080"/>
	+ <style:text-properties fo:color="#333333" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Footnote" style:family="table-cell" style:parent-style-name="Text">
	+ <style:text-properties fo:color="#808080" fo:font-size="10pt" fo:font-style="italic" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Hyperlink" style:family="table-cell" style:parent-style-name="Text">
	+ <style:text-properties fo:color="#0000ee" fo:font-size="10pt" fo:font-style="normal" style:text-underline-style="solid" style:text-underline-width="auto" style:text-underline-color="#0000ee" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Status" style:family="table-cell" style:parent-style-name="Default"/>
	+ <style:style style:name="Good" style:family="table-cell" style:parent-style-name="Status">
	+ <style:table-cell-properties fo:background-color="#ccffcc"/>
	+ <style:text-properties fo:color="#006600" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Neutral" style:family="table-cell" style:parent-style-name="Status">
	+ <style:table-cell-properties fo:background-color="#ffffcc"/>
	+ <style:text-properties fo:color="#996600" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Bad" style:family="table-cell" style:parent-style-name="Status">
	+ <style:table-cell-properties fo:background-color="#ffcccc"/>
	+ <style:text-properties fo:color="#cc0000" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Warning" style:family="table-cell" style:parent-style-name="Status">
	+ <style:text-properties fo:color="#cc0000" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Error" style:family="table-cell" style:parent-style-name="Status">
	+ <style:table-cell-properties fo:background-color="#cc0000"/>
	+ <style:text-properties fo:color="#ffffff" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="bold"/>
	+ </style:style>
	+ <style:style style:name="Accent" style:family="table-cell" style:parent-style-name="Default">
	+ <style:text-properties fo:color="#000000" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="bold"/>
	+ </style:style>
	+ <style:style style:name="Accent_20_1" style:display-name="Accent 1" style:family="table-cell" style:parent-style-name="Accent">
	+ <style:table-cell-properties fo:background-color="#000000"/>
	+ <style:text-properties fo:color="#ffffff" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Accent_20_2" style:display-name="Accent 2" style:family="table-cell" style:parent-style-name="Accent">
	+ <style:table-cell-properties fo:background-color="#808080"/>
	+ <style:text-properties fo:color="#ffffff" fo:font-size="10pt" fo:font-style="normal" fo:font-weight="normal"/>
	+ </style:style>
	+ <style:style style:name="Accent_20_3" style:display-name="Accent 3" style:family="table-cell" style:parent-style-name="Accent">
	+ <style:table-cell-properties fo:background-color="#dddddd"/>
	+ </style:style>
	+ </office:styles>
	+ <office:automatic-styles>
	+ <style:style style:name="co1" style:family="table-column">
	+ <style:table-column-properties fo:break-before="auto" style:column-width="306.45pt"/>
	+ </style:style>
	+ <style:style style:name="co2" style:family="table-column">
	+ <style:table-column-properties fo:break-before="auto" style:column-width="235.39pt"/>
	+ </style:style>
	+ <style:style style:name="co3" style:family="table-column">
	+ <style:table-column-properties fo:break-before="auto" style:column-width="285.59pt"/>
	+ </style:style>
	+ <style:style style:name="co4" style:family="table-column">
	+ <style:table-column-properties fo:break-before="auto" style:column-width="64.01pt"/>
	+ </style:style>
	+ <style:style style:name="co5" style:family="table-column">
	+ <style:table-column-properties fo:break-before="auto" style:column-width="201.46pt"/>
	+ </style:style>
	+ <style:style style:name="ro1" style:family="table-row">
	+ <style:table-row-properties style:row-height="31.49pt" fo:break-before="auto" style:use-optimal-row-height="false"/>
	+ </style:style>
	+ <style:style style:name="ro2" style:family="table-row">
	+ <style:table-row-properties style:row-height="12.81pt" fo:break-before="auto" style:use-optimal-row-height="true"/>
	+ </style:style>
	+ <style:style style:name="ro3" style:family="table-row">
	+ <style:table-row-properties style:row-height="24.01pt" fo:break-before="auto" style:use-optimal-row-height="true"/>
	+ </style:style>
	+ <style:style style:name="ro4" style:family="table-row">
	+ <style:table-row-properties style:row-height="46.49pt" fo:break-before="auto" style:use-optimal-row-height="true"/>
	+ </style:style>
	+ <style:style style:name="ta1" style:family="table" style:master-page-name="Default">
	+ <style:table-properties table:display="true" style:writing-mode="lr-tb"/>
	+ </style:style>
	+ <style:style style:name="ce1" style:family="table-cell" style:parent-style-name="Default">
	+ <style:table-cell-properties style:text-align-source="fix" style:repeat-content="false" style:vertical-align="middle"/>
	+ <style:paragraph-properties fo:text-align="center" fo:margin-left="0pt"/>
	+ <style:text-properties fo:font-size="13pt" fo:font-weight="bold" style:font-size-asian="13pt" style:font-weight-asian="bold" style:font-size-complex="13pt" style:font-weight-complex="bold"/>
	+ </style:style>
	+ <style:style style:name="ce6" style:family="table-cell" style:parent-style-name="Default">
	+ <style:text-properties fo:font-weight="bold" style:font-weight-asian="bold" style:font-weight-complex="bold"/>
	+ </style:style>
	+ <style:style style:name="ce5" style:family="table-cell" style:parent-style-name="Default">
	+ <style:table-cell-properties style:text-align-source="fix" style:repeat-content="false"/>
	+ <style:paragraph-properties fo:text-align="center" fo:margin-left="0pt"/>
	+ <style:text-properties fo:font-weight="bold" style:font-weight-asian="bold" style:font-weight-complex="bold"/>
	+ </style:style>
	+ <style:style style:name="ce4" style:family="table-cell" style:parent-style-name="Default">
	+ <style:table-cell-properties fo:background-color="#fff200"/>
	+ </style:style>
	+ <style:page-layout style:name="pm1">
	+ <style:page-layout-properties style:writing-mode="lr-tb"/>
	+ <style:header-style>
	+ <style:header-footer-properties fo:min-height="21.26pt" fo:margin-left="0pt" fo:margin-right="0pt" fo:margin-bottom="7.09pt"/>
	+ </style:header-style>
	+ <style:footer-style>
	+ <style:header-footer-properties fo:min-height="21.26pt" fo:margin-left="0pt" fo:margin-right="0pt" fo:margin-top="7.09pt"/>
	+ </style:footer-style>
	+ </style:page-layout>
	+ <style:page-layout style:name="pm2">
	+ <style:page-layout-properties style:writing-mode="lr-tb"/>
	+ <style:header-style>
	+ <style:header-footer-properties fo:min-height="21.26pt" fo:margin-left="0pt" fo:margin-right="0pt" fo:margin-bottom="7.09pt" fo:border="2.49pt solid #000000" fo:padding="0.51pt" fo:background-color="#c0c0c0">
	+ <style:background-image/>
	+ </style:header-footer-properties>
	+ </style:header-style>
	+ <style:footer-style>
	+ <style:header-footer-properties fo:min-height="21.26pt" fo:margin-left="0pt" fo:margin-right="0pt" fo:margin-top="7.09pt" fo:border="2.49pt solid #000000" fo:padding="0.51pt" fo:background-color="#c0c0c0">
	+ <style:background-image/>
	+ </style:header-footer-properties>
	+ </style:footer-style>
	+ </style:page-layout>
	+ </office:automatic-styles>
	+ <office:master-styles>
	+ <style:master-page style:name="Default" style:page-layout-name="pm1">
	+ <style:header>
	+ <text:p><text:sheet-name>???</text:sheet-name></text:p>
	+ </style:header>
	+ <style:header-left style:display="false"/>
	+ <style:footer>
	+ <text:p>Page <text:page-number>1</text:page-number></text:p>
	+ </style:footer>
	+ <style:footer-left style:display="false"/>
	+ </style:master-page>
	+ <style:master-page style:name="Report" style:page-layout-name="pm2">
	+ <style:header>
	+ <style:region-left>
	+ <text:p><text:sheet-name>???</text:sheet-name><text:s/>(<text:title>???</text:title>)</text:p>
	+ </style:region-left>
	+ <style:region-right>
	+ <text:p><text:date style:data-style-name="N2" text:date-value="2018-08-15">00/00/0000</text:date>, <text:time style:data-style-name="N2" text:time-value="18:00:53.929404118">00:00:00</text:time></text:p>
	+ </style:region-right>
	+ </style:header>
	+ <style:header-left style:display="false"/>
	+ <style:footer>
	+ <text:p>Page <text:page-number>1</text:page-number><text:s/>/ <text:page-count>99</text:page-count></text:p>
	+ </style:footer>
	+ <style:footer-left style:display="false"/>
	+ </style:master-page>
	+ </office:master-styles>
	+ <office:body>
	+ <office:spreadsheet>
	+ <table:calculation-settings table:automatic-find-labels="false" table:use-regular-expressions="false" table:use-wildcards="true"/>
	+ <table:table table:name="Sheet1" table:style-name="ta1">
	+ <table:table-column table:style-name="co1" table:default-cell-style-name="Default"/>
	+ <table:table-column table:style-name="co2" table:default-cell-style-name="Default"/>
	+ <table:table-column table:style-name="co3" table:default-cell-style-name="Default"/>
	+ <table:table-column table:style-name="co4" table:default-cell-style-name="Default"/>
	+ <table:table-column table:style-name="co5" table:default-cell-style-name="Default"/>
	+ <table:table-row table:style-name="ro1">
	+ <table:table-cell table:style-name="ce1" office:value-type="string" calcext:value-type="string">
	+ <text:p>AST</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:style-name="ce1" office:value-type="string" calcext:value-type="string">
	+ <text:p>Current Transcend</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:style-name="ce1" office:value-type="string" calcext:value-type="string">
	+ <text:p>Proposition 1</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:style-name="ce1" office:value-type="string" calcext:value-type="string">
	+ <text:p>Types</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:style-name="ce1" office:value-type="string" calcext:value-type="string">
	+ <text:p>Tests</text:p>
	+ </table:table-cell>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell table:style-name="ce6" office:value-type="string" calcext:value-type="string">
	+ <text:p>Expr</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>op</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>id</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>state</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>bindings</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>operands</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>type</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>tags</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>bind(var, annotation)</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="3"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>blocks</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>value</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell table:number-columns-repeated="5"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell table:style-name="ce6" office:value-type="string" calcext:value-type="string">
	+ <text:p>CodeScope</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>scope(scopeId)</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:style-name="ce4" office:value-type="string" calcext:value-type="string">
	+ <text:p>ast_scope(scopeId)</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="2"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro3">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>bindings</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string"><text:p>ast_scope_binding(scopeId, BindingId, </text:p><text:p>ScopeBindName)</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>ast_scope_binding(scopeId, BindingId, ScopeBindName)</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>LIST</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>CFA.ASTCorrespondence_Scope_Bindings_1</text:p>
	+ </table:table-cell>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>identifiers</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ <table:table-cell table:style-name="ce4" office:value-type="string" calcext:value-type="string">
	+ <text:p>ast_scope_identifier(scopeId, Var)</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>LIST</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>parent</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>cfa_parent(scopeCurrent, scope(scopeParent))</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:style-name="ce4" office:value-type="string" calcext:value-type="string">
	+ <text:p>ast_scope_parent(ScopeId, ScopeParentId)</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>SINGLE</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>declarations</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="2"/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>LIST</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>tags</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>bind_scope(scopeId, tag, strong/weak(..))</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>LIST</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>contextRules</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell table:number-columns-repeated="5"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell table:style-name="ce6" office:value-type="string" calcext:value-type="string">
	+ <text:p>Function</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>entry</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>cfa_parent(scopeEntry, functon(name))</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>SINGLE</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>name</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>function(name)</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>SINGLE</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>guard</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>cfa_function_specializations(funcName, tag)</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>SINGLE</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>tags</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>bind_function(name, tag)</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>LIST</text:p>
	+ </table:table-cell>
	+ <table:table-cell/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell table:number-columns-repeated="5"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell table:style-name="ce5" office:value-type="string" calcext:value-type="string">
	+ <text:p>Special Expressions</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="4"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro4">
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>CALL</text:p>
	+ </table:table-cell>
	+ <table:table-cell office:value-type="string" calcext:value-type="string"><text:p>cfa_call(scopeFrom, functionTo)</text:p><text:p>dfa_callfn(SymbRet, FnName)</text:p><text:p>weak/dfa_callargs(SymbRet, argFormal, argActual)</text:p><text:p>weak/dfa_alias(aliasFormal, Actual)</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="3"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2" table:number-rows-repeated="2">
	+ <table:table-cell table:number-columns-repeated="5"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell/>
	+ <table:table-cell table:style-name="ce5" office:value-type="string" calcext:value-type="string">
	+ <text:p>OTHER</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="3"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>var: <text:s/>s(id, <text:s/>version, scope), a(Num)</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="3"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>v(var1)</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="3"/>
	+ </table:table-row>
	+ <table:table-row table:style-name="ro2">
	+ <table:table-cell/>
	+ <table:table-cell office:value-type="string" calcext:value-type="string">
	+ <text:p>dfa_fnret(fnName, symbRet)</text:p>
	+ </table:table-cell>
	+ <table:table-cell table:number-columns-repeated="3"/>
	+ </table:table-row>
	+ </table:table>
	+ <table:named-expressions/>
	+ </office:spreadsheet>
	+ </office:body>
	+</office:document>
	\ No newline at end of file
	diff --git a/documentation-api/interpretation.graphml b/documentation-api/interpretation.graphml
	new file mode 100644
	index 0000000..4d43541
	--- /dev/null
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	diff --git a/grammar/xreate.ATG b/grammar/xreate.ATG
	index 4947344..a880168 100644
	--- a/grammar/xreate.ATG
	+++ b/grammar/xreate.ATG
	@@ -1,676 +1,676 @@
	//TODO add ListLiteral
	//TODO ExprTyped: assign default(none) type

	#include "ast.h"
	#include "ExternLayer.h"
	#include <string>
	#include <stack>

	#define wprintf(format, ...) \
	char __buffer[100]; \
	wcstombs(__buffer, format, 100); \
	fprintf(stderr, __buffer, __VA_ARGS__)

	using namespace std;

	COMPILER Xreate

	details::inconsistent::AST* root = nullptr; // current program unit

	void ensureInitalizedAST(){
	if (root == nullptr) root = new details::inconsistent::AST();
	}

	struct {
	std::stack<CodeScope*> scopesOld;
	CodeScope* scope = nullptr;
	} context;

	void pushContextScope(CodeScope* scope){
	context.scopesOld.push(context.scope);
	context.scope = scope;
	}

	void popContextScope(){
	context.scope = context.scopesOld.top();
	context.scopesOld.pop();
	}

	int nextToken()
	{
	scanner->ResetPeek();
	return scanner->Peek()->kind;
	}

	bool checkTokenAfterIdent(int key){
	if (la->kind != _ident) return false;
	return nextToken() == key;
	}

	bool checkParametersList()
	{
	return la->kind == _ident && nextToken() == _lparen;
	}

	bool checkInfix()
	{
	return la->kind == _ident && nextToken() == _ident;
	}

	bool checkIndex()
	{
	return la->kind == _ident && nextToken() == _lbrack;
	}

	bool checkFuncDecl()
	{
	if (la->kind != _ident) return false;

	int token2 = nextToken();
	int token3 = scanner->Peek()->kind;

	return token2 == _assign && (token3 == _function \|\| token3 == _pre);
	}

	bool checkAssignment()
	{
	if (la->kind != _ident) return false;

	scanner->ResetPeek();
	int token2 = scanner->Peek()->kind;
	if (token2 == _lcurbrack) {
	scanner->Peek();
	int token3 = scanner->Peek()->kind;
	if (token3 != _rcurbrack) return false;

	int token4 = scanner->Peek()->kind;
	return token4 == _assign;
	}

	return token2 == _assign;
	}

	void recognizeIdentifier(Expression& i){
	if (!context.scope->recognizeIdentifier(i)){
	root->postponeIdentifier(context.scope, i);
	}
	}

	enum SwitchKind{SWITCH_NORMAL, SWITCH_META};

	CHARACTERS
	letter = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".
	any = ANY - '"'.
	digit = "0123456789".
	cr = '\r'.
	lf = '\n'.
	tab = '\t'.

	TOKENS
	ident = (letter \| '_') {letter \| digit \| '_'}.
	number = (digit \| '-' digit) {digit}.
	string = '"' { any } '"'.
	function = "function".
	pre = "pre".
	comma = ','.
	period = '.'.
	lparen = '('.
	rparen = ')'.
	lbrack = '['.
	rbrack = ']'.
	lcurbrack = '{'.
	rcurbrack = '}'.
	equal = "==".
	assign = '='.
	implic = '-' '>'.
	colon = ':'.
	context = "context".
	tagcolon = "::".
	lse = "<=".
	lss = "<".
	gte = ">=".
	gtr = ">".

	ne1 = "!=".
	ne2= "<>".


	COMMENTS FROM "/" TO "/" NESTED
	COMMENTS FROM "//" TO lf

	IGNORE cr + lf + tab

	PRODUCTIONS

	Xreate = (. Function* function; ensureInitalizedAST(); .)
	{( RuleDecl
	\| InterfaceData \| Imprt \| GuardSection
	\| IF(checkFuncDecl()) FDecl<function> (. root->add(function); .)
	\| TDecl
	\| SkipModulesSection
	)} (. .)
	.

	Ident<std::wstring& name>
	= ident (. name = t->val; .).

	VarIdent<Expression& e>
	= ident (. e = Expression(Atom<Identifier_t>(t->val)); .)
	[ lcurbrack (
	ident (. SemErr(coco_string_create("var version as ident is not implemented yet")); .)
	\| number (. Attachments::put<versions::VariableVersion>(e, Atom<Number_t>(t->val).get()); .)
	) rcurbrack ]
	.


	FDecl<Function*& f> = (. std::wstring fname; std::wstring argName; TypeAnnotation typIn; TypeAnnotation typOut; bool flagIsPrefunct = false; Expression binding; .)
	Ident<fname> assign
	[pre (. flagIsPrefunct = true; .)]
	function (. f = new Function(fname); f->isPrefunction = flagIsPrefunct; CodeScope* entry = f->getEntryScope(); .)

	[lparen Ident<argName> tagcolon ExprAnnotations<binding> (. f->addBinding(Atom<Identifier_t>(argName), move(binding)); .)
	{comma Ident<argName> tagcolon ExprAnnotations<binding> (. f->addBinding(Atom <Identifier_t>(argName), move(binding));.)
	} rparen]

	[ tagcolon
	( IF(flagIsPrefunct) FnTag<f>
	\| Type<typOut>
	)
	{';' FnTag<f> }]
	BDecl<entry> (. const_cast<Expression&>(entry->getBody()).bindType(move(typOut));.)
	.

	GuardSection<>= (. Expression guard; Function* f; .)
	"guard" tagcolon MetaSimpExpr<guard>
	lcurbrack { FDecl<f> (. f->guard = guard; root->add(f); .)
	} rcurbrack.


	/**
	* TYPES
	*
	*/
	TypeTerm<TypePrimitive& typ> = (. std::wstring tid; .)
	("string" (. typ = TypePrimitive::String;.)
	\| "num" (. typ = TypePrimitive::Num;.)
	\| "int" (. typ = TypePrimitive::Int;.)
	\| "float" (. typ = TypePrimitive::Float;.)
	\| "bool" (. typ = TypePrimitive::Bool; .)
	\| "i8" (. typ = TypePrimitive::I8; .)
	\| "i32" (. typ = TypePrimitive::I32; .)
	\| "i64" (. typ = TypePrimitive::I64; .)
	).

	Type<TypeAnnotation& typ> = (. TypeAnnotation typ2; TypePrimitive typ3; std::wstring tid, field; .)
	(
	TList<typ>
	\| TStruct<typ>
	\| TVariant<typ>
	\| TSlave<typ>
	\| TypeTerm<typ3> (. typ = typ3; .)
	\| IF (checkIndex()) Ident<tid> lbrack
	Ident<field> (. typ = TypeAnnotation(TypeOperator::ACCESS, {}); typ.__valueCustom = Atom<Identifier_t>(tid).get(); typ.fields.push_back(Atom<Identifier_t>(field).get()); .)
	{comma Ident<field> (. typ.fields.push_back(Atom<Identifier_t>(field).get()); .)
	} rbrack

	\| Ident<tid> (. typ = TypeAnnotation(TypeOperator::CUSTOM, {}); typ.__valueCustom = Atom<Identifier_t>(tid).get(); .)
	[lparen Type<typ2> (. typ.__operator = TypeOperator::CALL; typ.__operands.push_back(typ2); .)
	{comma Type<typ2> (. typ.__operands.push_back(typ2); .)
	} rparen]
	) .

	TList<TypeAnnotation& typ> = (. TypeAnnotation ty; .)
	lbrack Type<ty> rbrack (. typ = TypeAnnotation(TypeOperator::LIST, {ty}); .)
	.

	TStruct<TypeAnnotation& typ> = (. TypeAnnotation t; std::wstring key; size_t keyCounter=0; .)
	lcurbrack
	(
	IF(checkTokenAfterIdent(_tagcolon)) Ident<key> tagcolon Type<t>
	\| Type<t> (. key = to_wstring(keyCounter++); .)

	) (. typ = TypeAnnotation(TypeOperator::LIST_NAMED, {t}); typ.fields.push_back(Atom<Identifier_t>(key).get()); .)
	{comma (
	IF(checkTokenAfterIdent(_tagcolon)) Ident<key> tagcolon Type<t>
	\| Type<t> (. key = to_wstring(keyCounter++); .)

	) (. typ.__operands.push_back(t); typ.fields.push_back(Atom<Identifier_t>(key).get()); .)
	} rcurbrack.

	-TVariant<TypeAnnotation& typ>= (. TypeAnnotation t, typVoid(TypeOperator::LIST_NAMED, {}); std::vector<TypeAnnotation> operands; std::vector<Atom<Identifier_t>> keys; std::wstring variant; .)
	+TVariant<TypeAnnotation& typ>= (. TypeAnnotation t, typVoid; std::vector<TypeAnnotation> operands; std::vector<Atom<Identifier_t>> keys; std::wstring variant; .)
	"variant" lcurbrack
	Ident<variant> (. t=typVoid; .)
	[tagcolon Type<t>] (. keys.push_back(Atom<Identifier_t>(variant)); operands.push_back(t); .)

	{comma Ident<variant> (. t=typVoid; .)
	[tagcolon Type<t>] (. keys.push_back(Atom<Identifier_t>(variant)); operands.push_back(t); .)
	}
	rcurbrack (. typ = TypeAnnotation(TypeOperator::VARIANT, {}); typ.__operands = operands; typ.addFields(std::move(keys)); .)
	.

	TSlave<TypeAnnotation& typ>= (. std::wstring identMaster; .)
	"slave" Ident<identMaster> (. typ = TypeAnnotation(TypeOperator::SLAVE, {}); typ.__valueCustom = Atom<Identifier_t>(identMaster).get(); .)
	.

	TDecl = (. TypeAnnotation t; std::wstring tname, arg; std::vector<Atom<Identifier_t>> args; .)
	Ident<tname> assign "type"
	[lparen Ident<arg> (. args.push_back(Atom<Identifier_t>(arg)); .)
	{comma Ident<arg> (. args.push_back(Atom<Identifier_t>(arg)); .)
	} rparen]
	Type<t>period (. t.addBindings(move(args)); root->add(move(t), Atom<Identifier_t>(tname)); .)
	.

	ContextDecl<CodeScope * scope> = (. Expression tag; .)
	context tagcolon
	MetaSimpExpr<tag> (. scope->tags.push_back(tag); .)
	{';' MetaSimpExpr<tag> (. scope->tags.push_back(tag); .)
	}.

	VDecl<CodeScope* f> = (. std::wstring vname; Expression var, value;.)
	VarIdent<var> assign ExprTyped<value> (. Symbol identSymbol = f->addDefinition(move(var), move(value));
	Attachments::put<SymbolAlias>(value, identSymbol);
	.)
	.

	BDecl<CodeScope* scope> = lcurbrack (. Expression body; pushContextScope(scope); .)
	{(IF(checkAssignment()) VDecl<scope> period
	\| RuleContextDecl<scope>
	\| ContextDecl<scope>period
	\| ExprTyped<body> (. scope->setBody(body); Attachments::put<SymbolAlias>(body, Symbol{ScopedSymbol::RetSymbol, scope});.)
	)}
	rcurbrack (. popContextScope(); .)
	.

	IfDecl<Expression& e> = (. Expression cond; ManagedScpPtr blockTrue = root->add(new CodeScope(context.scope)); ManagedScpPtr blockFalse = root->add(new CodeScope(context.scope)); .)
	"if" lparen Expr<cond> rparen (. e = Expression(Operator::IF, {cond}); .)
	tagcolon ExprAnnotations<e>
	BDecl<&blockTrue> "else" BDecl<&blockFalse> (. e.addBlock(blockTrue); e.addBlock(blockFalse); .)
	.

	LoopDecl<Expression& e> =
	(. Expression eIn, eAcc, eFilters; std::wstring varEl, varAcc, contextClass; Expression tagsEl;
	ManagedScpPtr block = root->add(new CodeScope(context.scope)); .)
	"loop"
	("map" lparen Expr<eIn> implic Ident<varEl> (. e = Expression(Operator::MAP, {eIn}); .)
	tagcolon ExprAnnotations<tagsEl> rparen tagcolon ExprAnnotations<e>
	(.
	e.addBindings({Atom<Identifier_t>(varEl)});
	block->addBinding(Atom<Identifier_t>(varEl), move(tagsEl));
	.)
	BDecl<&*block>
	(. e.addBlock(block); .)

	\|"fold"
	("inf" lparen Expr<eAcc> implic Ident<varAcc> rparen
	(.
	e = Expression(Operator::FOLD_INF, {eAcc});
	e.addBindings({Atom<Identifier_t>(varAcc)});
	block->addBinding(Atom<Identifier_t>(varAcc), Expression());
	.)
	tagcolon ExprAnnotations<e> BDecl<&*block>
	(. e.addBlock(block); .)

	\| lparen Expr<eIn> implic Ident<varEl> tagcolon ExprAnnotations<tagsEl> ['\|' Expr<eFilters> ] comma Expr<eAcc> implic Ident<varAcc>rparen
	(.
	e = Expression(Operator::FOLD, {eIn, eAcc});
	e.addBindings({Atom<Identifier_t>(varEl), Atom<Identifier_t>(varAcc)});
	.)
	tagcolon ExprAnnotations<e>
	(.
	block->addBinding(Atom<Identifier_t>(varEl), move(tagsEl));
	block->addBinding(Atom<Identifier_t>(varAcc), Expression());
	.)
	BDecl<&*block>
	(. e.addBlock(block); .)
	)
	).

	// Switches
	SwitchDecl<Expression& eSwitch, SwitchKind flagSwitchKind> = (. TypeAnnotation typ; eSwitch = Expression(Operator::SWITCH, {}); Expression eCondition; Expression tag;.)
	"switch"
	(
	SwitchVariantDecl<eSwitch>
	- \| SwitchLate<eSwitch>
	+ \| SwitchLateDecl<eSwitch>
	\| lparen ExprTyped<eCondition> rparen tagcolon ExprAnnotations<eSwitch> (. eSwitch.operands.push_back(eCondition);.)
	CaseDecl<eSwitch, flagSwitchKind> {CaseDecl<eSwitch, flagSwitchKind>}
	)
	.

	CaseDecl<Expression& outer, SwitchKind flagSwitchKind> = (. ManagedScpPtr scope = root->add(new CodeScope(context.scope)); Expression condition; .)
	"case"
	( IF(flagSwitchKind == SWITCH_META)
	lparen MetaSimpExpr<condition> rparen BDecl<&*scope> (. Expression exprCase(Operator::CASE, {}); exprCase.addTags({condition}); exprCase.addBlock(scope); outer.addArg(move(exprCase));.)

	\| "default" BDecl<&*scope> (. Expression exprCase(Operator::CASE_DEFAULT, {});
	exprCase.addBlock(scope);
	outer.operands.insert(++outer.operands.begin(), exprCase); .)

	\| lparen CaseParams<&scope> rparen (. ManagedScpPtr scopeBody = root->add(new CodeScope(&scope)); Expression exprCase(Operator::CASE, {}); .)
	BDecl<&*scopeBody> (. exprCase.addBlock(scope); exprCase.addBlock(scopeBody); outer.addArg(move(exprCase)); .)
	).

	CaseParams<CodeScope* scope> = (. Expression condition; Expression guard(Operator::LOGIC_AND, {}); pushContextScope(scope); .)
	ExprTyped<condition> (. guard.addArg(Expression(condition)); .)
	{comma ExprTyped<condition> (. guard.addArg(Expression(condition)); .)
	} (. scope->setBody(guard); popContextScope(); .)
	.

	-SwitchLate<Expression& expr> =
	+SwitchLateDecl<Expression& expr> =
	(.
	std::wstring aliasCondition; Expression exprCondition, aliasAnns;
	expr = Expression(Operator::SWITCH_LATE, {});
	ManagedScpPtr scope = root->add(new CodeScope(context.scope));
	.)

	"late" lparen Expr<exprCondition> [implic Ident<aliasCondition>] [tagcolon ExprAnnotations<aliasAnns>] rparen
	tagcolon ExprAnnotations<expr> BDecl<&*scope>
	(.
	expr.addArg(Expression(exprCondition));
	expr.addBlock(scope);
	std::string alias;
	if(aliasCondition.empty()){
	if(exprCondition.__state != Expression::IDENT){
	SemErr(coco_string_create("An identifier expected in the short form"));
	return;
	}

	//Use exprCondition as identifier
	alias = exprCondition.getValueString();
	} else {
	//Use aliasCondition
	- alias = Atom<String_t>(move(aliasCondition)).get();
	+ alias = Atom<Identifier_t>(move(aliasCondition)).get();
	}

	expr.addBindings({Atom<Identifier_t>(string(alias))});
	scope->addBinding(Atom<Identifier_t>(move(alias)), move(aliasAnns));
	.)
	.

	SwitchVariantDecl<Expression& expr> =
	(. Expression varTested; std::wstring varAlias; bool flagAliasFound = false; expr = Expression(Operator::SWITCH_VARIANT, {}); .)

	"variant" lparen Expr<varTested> [implic Ident<varAlias>
	(. flagAliasFound = true; .)

	] [tagcolon ExprAnnotations<varTested>] rparen tagcolon ExprAnnotations<expr>
	(. expr.addArg(std::move(varTested));
	if (flagAliasFound) {
	expr.addBindings({Atom<Identifier_t>(varAlias)});

	} else {
	if(varTested.__state == Expression::IDENT){
	expr.addBindings({Atom<Identifier_t>(string(varTested.getValueString()))});
	}
	}
	.)

	CaseVariantDecl<expr> {CaseVariantDecl<expr>}
	.

	CaseVariantDecl<Expression& expr> = (. ManagedScpPtr scope = root->add(new CodeScope(context.scope)); std::wstring key; scope->addBinding(Atom<Identifier_t>(string(expr.bindings.front())), Expression()); .)
	"case" lparen Ident<key> rparen (. expr.addArg(root->recognizeVariantConstructor(Atom<Identifier_t>(std::move(key)))); .)
	BDecl<&*scope> (. expr.addBlock(scope); .)
	.

	IntrinsicDecl<Expression& outer>= (. std::wstring name; .)
	"intrinsic" Ident< name> (. outer = Expression(Operator::CALL_INTRINSIC, {}); outer.setValue(Atom<Identifier_t>(name)); .)
	lparen [CalleeParams<outer>] rparen .

	SequenceDecl<Expression& sequence> = (. sequence = Expression(); sequence.setOp(Operator::SEQUENCE); ManagedScpPtr scope = root->add(new CodeScope(context.scope)); .)
	"seq" BDecl<&scope> (. sequence.blocks.push_back(&scope); scope = root->add(new CodeScope(&*scope)); .)
	{ (. scope = root->add(new CodeScope(&*scope)); .)
	BDecl<&scope> (. sequence.blocks.push_back(&scope); .)
	}.

	/============================ INTERFACES ===============================/
	Imprt<> =
	"import" "raw" lparen string (. root->__rawImports.push_back(Atom<String_t>(t->val).get()); .)
	rparen period.

	InterfaceData<> = "interface" lparen
	( "dfa" rparen InterfaceDFA
	\| "extern-c" rparen InterfaceExternC
	\| "cfa" rparen InterfaceCFA
	).

	InterfaceExternC<> = (. ExternData data; .)
	lcurbrack {IncludeExternDecl<data> \| LibExternDecl<data> } rcurbrack
	(. root->addExternData(move(data)); .)
	.

	LibExternDecl<ExternData& data> = (. std::wstring pkgname, libname; .)
	Ident<libname> assign "library" tagcolon "pkgconfig"
	lparen string (. pkgname = t->val; .)
	rparen period (. data.addLibrary(Atom<Identifier_t>(libname), Atom<String_t>(pkgname)); .)
	.

	IncludeExternDecl<ExternData& data> = (. Expression inc; .)
	"include" StructLiteral<inc> period (. data.addIncludeDecl(move(inc)); .)
	.

	InterfaceDFA<> = lcurbrack { InstructDecl } rcurbrack .

	InstructDecl = (.Operator op; Expression tag;
	Expression scheme;
	std::vector<Expression>& tags = scheme.operands;
	tags.push_back(Expression()); /* return value */ .)
	"operator" InstructAlias<op> tagcolon lparen (.scheme.setOp(op); .)
	[
	MetaSimpExpr<tag> (. tags.push_back(tag); .)
	{
	comma MetaSimpExpr<tag> (. tags.push_back(tag); .)
	}
	] rparen [ implic MetaSimpExpr<tag> (. tags[0] = tag; .)
	] (. root->addDFAData(move(scheme)); .)
	period.

	InstructAlias<Operator& op> =
	(
	"map" (. op = Operator::MAP; .)
	\| "list_range" (. op = Operator::LIST_RANGE; .)
	\| "list" (. op = Operator::LIST; .)
	\| "fold" (. op = Operator::FOLD; .)
	\| "index" (. op = Operator::INDEX; .)
	).


	InterfaceCFA<> = lcurbrack { InstructCFADecl } rcurbrack .

	InstructCFADecl<> = (.Operator op; Expression tag;
	Expression scheme;
	std::vector<Expression>& tags = scheme.operands; .)

	"operator" InstructAlias<op> tagcolon (. scheme.setOp(op); .)
	[
	MetaSimpExpr<tag> (. tags.push_back(tag); .)
	{
	comma MetaSimpExpr<tag> (. tags.push_back(tag); .)
	}
	] period (. root->addInterfaceData(CFA, move(scheme)); .).

	/============================ METAPROGRAMMING ===============================/
	// TagsDecl<CodeScope* f> = (. Expression tag; TagModifier mod = TagModifier::NONE; .)
	// ':' { MetaSimpExpr<tag> (. /f.addTag(std::move(tag), mod); / .)
	// }.


	FnTag<Function* f> = (. Expression tag; TagModifier mod = TagModifier::NONE; .)
	MetaSimpExpr<tag>
	['-' TagMod<mod>] (. f->addTag(std::move(tag), mod); .).

	TagMod<TagModifier& mod> =
	( "assert" (. mod = TagModifier::ASSERT; .)
	\| "require" (. mod = TagModifier::REQUIRE; .)
	).

	RuleDecl<> =
	"rule" tagcolon (. RuleArguments args; RuleGuards guards; DomainAnnotation typ; std::wstring arg; .)
	lparen Ident<arg> tagcolon Domain<typ> (. args.add(arg, typ); .)
	{comma Ident<arg> tagcolon Domain<typ> (. args.add(arg, typ); .)
	} rparen
	["case" RGuard<guards> {comma RGuard<guards>}]
	lcurbrack RBody<args, guards> rcurbrack .

	/* - TODO use RGuard for guards-*/
	RuleContextDecl<CodeScope* scope> = (.Expression eHead, eGuards, eBody; .)
	"rule" "context" tagcolon MetaSimpExpr<eHead>
	"case" lparen MetaSimpExpr<eGuards> rparen
	lcurbrack MetaSimpExpr<eBody> rcurbrack (.scope->contextRules.push_back(Expression(Operator::CONTEXT_RULE, {eHead, eGuards, eBody})); .).

	Domain<DomainAnnotation& dom> =
	(
	"function" (. dom = DomainAnnotation::FUNCTION; .)
	\| "variable" (. dom = DomainAnnotation::VARIABLE; .)
	).

	RGuard<RuleGuards& guards>= (. Expression e; .)
	MetaExpr<e> (. guards.add(std::move(e)); .).

	MetaExpr<Expression& e>= (.Operator op; Expression e2; .)
	MetaExpr2<e>
	[MetaOp<op> MetaExpr2<e2> (. e = Expression(op, {e, e2}); .)
	].

	MetaExpr2<Expression& e>=
	(
	lparen MetaExpr<e> rparen
	\| MetaSimpExpr<e>
	).

	MetaSimpExpr<Expression& e>= (. std::wstring i1, infix; Expression e2; .)
	( '-' MetaSimpExpr<e2> (. e = Expression(Operator::NEG, {e2}); .)
	\| IF(checkParametersList()) Ident<i1> (. e = Expression(Operator::CALL, {Expression(Atom<Identifier_t>(i1))}); .)
	lparen [ MetaCalleeParams<e> ] rparen
	\| IF(checkInfix()) Ident<i1> Ident<infix> MetaSimpExpr<e2>
	(. e = Expression(Operator::CALL, {Expression(Atom<Identifier_t>(infix))});
	e.addArg(Expression(Atom<Identifier_t>(i1)));
	e.addArg(std::move(e2));
	.)
	\| Ident<i1> (. e = Expression(Operator::CALL, {Atom<Identifier_t>(i1)}); .)
	).

	MetaCalleeParams<Expression& e> = (. Expression e2; .)
	MetaSimpExpr<e2> (. e.addArg(Expression(e2)); .)
	{comma MetaSimpExpr<e2> (. e.addArg(Expression(e2)); .)
	}.

	RBody<const RuleArguments& args, const RuleGuards& guards> =
	(. Expression e; std::wstring msg; .)
	"warning" MetaExpr<e> ["message" string (. msg = t->val; .)
	] (. root->add(new RuleWarning(RuleArguments(args), RuleGuards(guards), std::move(e), Atom<String_t>(msg))); .)
	.

	MetaOp< Operator& op> =
	implic (. op = Operator::IMPL; .)
	.

	/============================ Expressions ===============================/
	ExprAnnotations<Expression& e> = (. TypeAnnotation typ; std::list<Expression> tags; Expression tag; e.tags.clear();.)
	Type<typ> (. e.bindType(move(typ)); .)
	{';' MetaSimpExpr<tag> (. tags.push_back(tag); .)
	} (. e.addTags(tags); .)
	.

	ExprTyped<Expression&e> = Expr<e> [tagcolon ExprAnnotations<e>].

	Expr< Expression& e> (. Operator op; Expression e2; .)
	= ExprArithmAdd<e>
	[ RelOp<op>
	ExprArithmAdd<e2> (. e = Expression(op, {e, e2}); .)
	].

	ExprArithmAdd< Expression& e>= (. Operator op; Expression e2; .)
	ExprArithmMul< e>
	[ AddOp< op>
	ExprArithmAdd< e2> (. e = Expression(op, {e, e2});.)
	].

	ExprArithmMul< Expression& e> (. Operator op; Expression e2; .)
	= ExprPostfix< e>
	[ MulOp< op>
	ExprArithmMul< e2> (. e = Expression(op, {e, e2}); .)
	].

	ExprPostfix<Expression& e>
	= Term<e>
	[ (. e = Expression(Operator::INDEX, {e}); .)
	{lbrack CalleeParams<e> rbrack }
	].


	Term< Expression& e> (. std::wstring name; e = Expression(); .)
	=
	(IF (checkParametersList()) Ident< name>
	(. e = Expression(Operator::CALL, {Atom<Identifier_t>(name)}); root->recognizeVariantConstructor(e); .)
	lparen [CalleeParams<e>] rparen
	\| VarIdent<e> (. recognizeIdentifier(e); .)
	\| ListLiteral<e> (. /* tuple */.)
	\| StructLiteral<e> (. /* struct */.)
	\| LoopDecl<e>
	\| IfDecl<e>
	\| SwitchDecl<e, SWITCH_NORMAL>
	\| IntrinsicDecl<e>
	\| SequenceDecl<e>
	\| number (. e = Expression(Atom<Number_t>(t->val)); .)
	\| string (. e = Expression(Atom<String_t>(t->val)); .)
	\| "true" (. e = Expression(Atom<Number_t>(1)); e.bindType(TypePrimitive::Bool); .)
	\| "false" (. e = Expression(Atom<Number_t>(0)); e.bindType(TypePrimitive::Bool); .)
	\| "undef" (. e = Expression(Operator::UNDEF, {}); .)
	\| '-' Term<e> (. e = Expression(Operator::NEG, {e}); .)
	\| lparen ExprTyped<e> rparen
	).

	StructLiteral<Expression& e> = (. std::wstring key; Expression val; std::list<Atom<Identifier_t>> keys; size_t keyCounter=0; .)
	lcurbrack
	(IF(checkTokenAfterIdent(_assign)) Ident<key> assign Expr<val>
	\| Expr<val> (. key = to_wstring(keyCounter++); .)
	) (. keys.push_back(Atom<Identifier_t>(key)); e = Expression(Operator::LIST_NAMED, {val}); .)
	{comma (IF(checkTokenAfterIdent(_assign)) Ident<key> assign Expr<val>
	\| Expr<val> (. key = to_wstring(keyCounter++); .)
	) (. e.addArg(Expression(val)); keys.push_back(Atom<Identifier_t>(key)); .)
	} rcurbrack (. e.addBindings(keys.begin(), keys.end()); .)
	.

	ListLiteral<Expression& e> = (. Expression eFrom, eTo; .)
	lbrack (. e.setOp(Operator::LIST); .)
	[ Expr<eFrom> (. e.addArg(Expression(eFrom)); .)
	( ".." Expr<eTo> (. e.addArg(Expression(eTo)); e.setOp(Operator::LIST_RANGE); .)
	\|{comma Expr<eFrom> (. e.addArg(Expression(eFrom)); .)
	}
	)
	]
	rbrack.

	CalleeParams<Expression& e> = (. Expression e2; .)
	ExprTyped<e2> (. e.addArg(Expression(e2)); .)
	{comma ExprTyped<e2> (. e.addArg(Expression(e2)); .)
	}.

	AddOp< Operator& op>
	= (. op = Operator::ADD; .)
	( '+'
	\| '-' (. op = Operator::SUB; .)
	).

	MulOp< Operator& op>
	= (. op = Operator::MUL; .)
	( '*'
	\| '/' (. op = Operator::DIV; .)
	).

	RelOp< Operator& op>
	= (. op = Operator::EQU; .)
	( equal
	\| (ne1 \| ne2) (. op = Operator::NE; .)

	\| lse (. op = Operator::LSE; .)
	\| lss (. op = Operator::LSS; .)

	\| gte (. op = Operator::GTE; .)
	\| gtr (. op = Operator::GTR; .)

	).

	SkipModulesSection = "module" lcurbrack {ANY} rcurbrack.

	END Xreate.
	diff --git a/scripts/cfa/context.lp b/scripts/cfa/context.lp
	index 9fd0394..eb6c9ef 100644
	--- a/scripts/cfa/context.lp
	+++ b/scripts/cfa/context.lp
	@@ -1,82 +1,106 @@
	% This Source Code Form is subject to the terms of the Mozilla Public
	% License, v. 2.0. If a copy of the MPL was not distributed with this
	% file, You can obtain one at http://mozilla.org/MPL/2.0/.

	%% INPUT:
	%% - latex_scope_demand(Scope, Subject)
	%% Initial demand from clients
	%%
	%% - latex_registered_subjects(Subject, PossibleDecision)
	%% Clients register possible decisions for respective subjects
	%%
	+%% - latex_fn_signature
	+%%
	%% OUTPUT:
	%% - latex_fn_demand(Fn, Subject)
	%% Which functions demand hidden latex arguments
	%%
	%% - latex_decision(Scope, Subject, Decision)
	%% Provided decisions, values for hidden latex arguments
	+%%
	+%% SIGNATURES:
	+%% -Subject: string
	+%%

	% CONTEXT PROPAGATION
	%===========================================================

	% nested scope propagation:
	-% test: CFA.Context1
	bind_scope(Scope, Context, Info):-
	bind_scope(ScopeParent, Context, Info);
	cfa_parent(Scope, scope(ScopeParent)).

	% Strong or Uniform inter-function propagation:
	bind_scope(Scope, Context, Info):-
	bind_scope(ScopeParent, Context, Info): cfa_call(ScopeParent, FnCurrent);
	cfa_parent(Scope, function(FnCurrent)); cfa_call(_, FnCurrent);
	bind_scope(_, Context, Info); scope(Scope).

	% weak inter-function propagation
	bind_scope(Scope, Context, weak(ScopeParent)):-
	not bind_scope(Scope, Context, strong);
	bind_scope(ScopeParent, Context, strong);
	cfa_call(ScopeParent, FnCurrent);
	cfa_parent(Scope, function(FnCurrent)).


	% DEMAND
	-%Tests: CFA.Latex_SimpleFork1
	%===========================================================

	%demand propagations: scope level
	latex_scope_demand(Scope, Subject):-
	latex_scope_demand(ScopeChild, Subject);
	cfa_parent(ScopeChild, scope(Scope)).

	%propagation: fn level
	latex_fn_demand(Fn, Subject):-
	latex_scope_demand(ScopeFnBody, Subject);
	- cfa_parent(ScopeFnBody, function(Fn)).
	-
	+ cfa_parent(ScopeFnBody, function(Fn)).
	+
	+latex_fn_demand_ordered(Fn, Subject, Id):-
	+ Id= #sum{ 1, SubjLess : latex_fn_demand(Fn, SubjLess), SubjLess < Subject};
	+ latex_fn_demand(Fn, Subject).
	+
	%propagation: inter-fn level
	latex_scope_demand(Scope, Subject):-
	latex_fn_demand(FnCallee, Subject);
	not latex_decision(Scope, Subject, _);
	cfa_call(Scope, FnCallee).

	% DECISIONS
	-%Tests: CFA.Latex_SimpleFork1
	%===========================================================

	latex_decision(Scope, Subject, Decision):-
	latex_fn_demand(FnCallee, Subject);
	bind_scope(Scope, Decision, strong);
	cfa_call(Scope, FnCallee);
	latex_registered_subjects(Subject, Decision).

	+latex_fn_signature_size(Fn, IdMax + 1):-
	+ IdMax = #max{ Id, Id : ast_scope_binding(FnBody, Id, _) };
	+ cfa_parent(FnBody, function(Fn)).
	+
	+latex_fn_signature_size(Fn, 0):-
	+ not ast_scope_binding(FnBody, _, _);
	+ cfa_parent(FnBody, function(Fn)).
	+
	%late decision
	-late(s(ScopeCaller, 0), (DecisionS), (AnyDecision), latex_decision(ScopeCaller, Subject, AnyDecision)):-
	+late((ScopeCaller, Subject), s(Size + SubjOrder+1, -2, FnCallerBody), (AnyDecision), latex_decision(ScopeCaller, Subject, AnyDecision)):-
	scope_fn(ScopeCaller, FnCaller);
	- latex_fn_signature(FnCaller, Subject, DecisionS);
	+ cfa_parent(FnCallerBody, function(FnCaller));
	+ latex_fn_signature_size(FnCaller, Size);
	+ latex_fn_demand_ordered(FnCaller, Subject, SubjOrder);

	cfa_call(ScopeCaller, FnCallee);
	latex_fn_demand(FnCallee, Subject);
	latex_registered_subjects(Subject, AnyDecision).



	+% IMPLEMENTATION
	+%===========================================================
	+
	+scope_fn(Scope, Fn):-cfa_parent(Scope, function(Fn)).
	+scope_fn(Scope, Fn):-
	+ scope_fn(ScopeParent, Fn);
	+ cfa_parent(Scope, scope(ScopeParent)).
	diff --git a/scripts/cfa/control-context-v1.lp b/scripts/cfa/control-context-v1.lp
	deleted file mode 100644
	index 220461a..0000000
	--- a/scripts/cfa/control-context-v1.lp
	+++ /dev/null
	@@ -1,28 +0,0 @@
	-% This Source Code Form is subject to the terms of the Mozilla Public
	-% License, v. 2.0. If a copy of the MPL was not distributed with this
	-% file, You can obtain one at http://mozilla.org/MPL/2.0/.
	-
	- % context propagation
	-
	-bind_scope_decision(Scope, Fn, Resolution):- cfa_call(Scope, Fn), cfa_function_specializations(Fn, Resolution), bind_scope(Scope, Resolution).
	-bind_scope_decision(Scope, Fn, Resolution):- cfa_call(Scope, FnChild), bind_function_demand(FnChild, Fn), cfa_function_specializations(Fn, Resolution), bind_scope(Scope, Resolution).
	-
	-bind_scope_demand(Scope, FnCallee):- cfa_call(Scope, FnCallee), cfa_function_specializations(FnCallee, _), not bind_scope_decision(Scope, FnCallee, _).
	-
	- %demand propagation
	-bind_scope_demand(Scope, Subject):- bind_scope_demand(ScopeChild, Subject), cfa_parent(ScopeChild, scope(Scope)).
	-bind_scope_demand(Scope, Subject):- cfa_call(Scope, FnChild), bind_function_demand(FnChild, Subject), not bind_scope_decision(Scope, Subject, _).
	-bind_function_demand(Fn, Subject):- bind_scope_demand(Scope, Subject), cfa_parent(Scope, function(Fn)).
	-
	-bind_scope(Scope, Context) :- bind_scope(ScopeParent, Context), cfa_parent(Scope, scope(ScopeParent)).
	-bind_scope(Scope, Context) :- bind_scope(ScopeParent, Context): cfa_call(ScopeParent, FnCurrent); cfa_call(_, FnCurrent)
	- , cfa_parent(Scope, function(FnCurrent)), bind_scope(_, Context), scope(Scope).
	-
	-% adhoc classes(unfinished):
	-%bind_func(Fn, adhoc_class(Context)) :- bind_func(Fn, adhoc(Context)), bind_scope(Scope, Context), cfa_parent(Scope, function(Fn)).
	-
	-%scope_parent(Scope, ScopeParent) :- cfa_parent(Scope, scope(ScopeParent)).
	-%scope_parent(Scope, ScopeParent2) :- cfa_parent(Scope, scope(ScopeParent)), scope_parent(ScopeParent, ScopeParent2).
	-
	-%scope_function(Scope, Fn) :- cfa_parent(Scope, function(Fn)).
	-%scope_function(Scope, Fn) :- cfa_parent(Scope, scope(ScopeParent)), scope_function(ScopeParent, Fn).
	diff --git a/scripts/cfa/control-context-v3.lp b/scripts/cfa/control-context-v3.lp
	deleted file mode 100644
	index 03fe0d5..0000000
	--- a/scripts/cfa/control-context-v3.lp
	+++ /dev/null
	@@ -1,70 +0,0 @@
	-% This Source Code Form is subject to the terms of the Mozilla Public
	-% License, v. 2.0. If a copy of the MPL was not distributed with this
	-% file, You can obtain one at http://mozilla.org/MPL/2.0/.
	-
	- %% SCHEMA:
	- %% specialization(Fn, Scope) - indicates query of exact Fn specialization to use in Scope.
	- %% resolution_dependency(Resolution, Dependency) - Dependency is necessary prerequisite for choosing Resolution.
	- %%
	-
	-true.
	-
	- %nested scope propagation:
	-bind_scope(Scope, Context, Info) :- bind_scope(ScopeParent, Context, Info), cfa_parent(Scope, scope(ScopeParent)).
	-
	- %strong/uniform inter-function propagation:
	-bind_scope(Scope, Context,Info) :- bind_scope(ScopeParent, Context, Info): cfa_call(ScopeParent, FnCurrent);
	- cfa_parent(Scope, function(FnCurrent)); cfa_call(_, FnCurrent);
	- bind_scope(_, Context, Info); scope(Scope).
	-
	- %weak inter-function propagation
	-bind_scope(Scope, Context, weak(ScopeParent)):- not bind_scope(Scope, Context, strong), bind_scope(ScopeParent, Context, strong), cfa_call(ScopeParent, FnCurrent), cfa_parent(Scope, function(FnCurrent)).
	-bind_scope(Scope, Context, weak(ScopeParent, Info)):- Info<>strong, not bind_scope(Scope, Context, Info), bind_scope(ScopeParent, Context, Info), cfa_call(ScopeParent, FnCurrent), cfa_parent(Scope, function(FnCurrent)).
	-
	-
	- %make decisions
	-%%%bind_scope_decision(Scope, loop(Subject), Scope):- cfa_contextloop(Scope, Subject), demand_dependency(loop(Subject), X), bind_scope(Scope, X, strong).*
	-%%%bind_scope_decision(Scope, loop(Subject), Scope):- cfa_call(Scope, FnChild), bind_function_demand(FnChild, loop(Subject)), demand_dependency(loop(Subject), X), bind_scope(Scope, X, strong).
	-
	- %on-site decision
	-% ASSERT: ON-SITE DECISION SHOULD BE FIRST CLASS (checks at least one specialization exists)
	-bind_scope_decision(Scope, Subject, Resolution):-
	- bind_scope(Scope, Resolution, strong), Subject = specialization(Fn, Scope);
	- cfa_call(Scope, Fn);
	- cfa_function_specializations(Fn, Resolution).
	-
	-bind_scope_decision(ScopeSource, Subject, Resolution):-
	- bind_scope(Scope, Resolution, weak(ScopeSource)); Subject = specialization(Fn, Scope);
	- cfa_call(Scope, Fn); cfa_function_specializations(Fn, Resolution).
	-
	-bind_scope_decision(ScopeSource, Subject, resolution_dependency(Resolution, Dependency)):-
	- bind_scope(Scope, Resolution, weak(ScopeSource, Dependency)); Subject = specialization(Fn, Scope);
	- cfa_call(Scope, Fn), cfa_function_specializations(Fn, Resolution).
	-
	- %dependent decisions
	-bind_scope_demand(Scope, dependency(Subject, Scope)) :- bind_scope_decision(Scope, Subject, resolution_dependency(_, Dependency)).
	-bind_scope_demand(ScopeSource, dependency(Subject, ScopeSource)) :- Dependency = weak(ScopeSource, DependencyTail), bind_scope_demand(Scope, dependency(Subject, Scope)), scope_dependencies(dependency(Subject, Scope), Dependency).
	-
	-bind_scope_decision(ScopeSource, dependency(Subject, Scope), Dependency) :- Dependency = weak(ScopeSource), bind_scope_demand(Scope, dependency(Subject, Scope)), scope_dependencies(dependency(Subject, Scope), Dependency).
	-bind_scope_decision(ScopeSource, dependency(Subject, Scope), resolution_dependency(Dependency, DependencyTail)) :- Dependency = weak(ScopeSource, DependencyTail), bind_scope_demand(Scope, dependency(Subject, Scope)), scope_dependencies(dependency(Subject, Scope), Dependency).
	-
	-
	- %dependent decision helpers:
	-scope_dependencies(dependency(Subject, Scope), Dependency) :- bind_scope_decision(Scope, Subject, resolution_dependency(_, Dependency)).
	-scope_dependencies(dependency(Subject, ScopeSource), DependencyTail) :- Dependency = weak(ScopeSource, DependencyTail), bind_scope_demand(Scope, dependency(Subject, Scope)), scope_dependencies(dependency(Subject, Scope), Dependency).
	-
	- %on-site demand
	-% ASSERT: ON-SITE DEMAND SHOULD BE dependent OF on-site decision (check there are no specializations AT ALL)
	-%%%bind_scope_demand(Scope, Subject):- cfa_contextloop(Scope, Subject), not bind_scope_decision(Scope, loop(Subject), _).
	-bind_scope_demand(Scope, Subject):- Subject = specialization(FnCallee, Scope),
	- cfa_call(Scope, FnCallee),
	- cfa_function_specializations(FnCallee, _),
	- not bind_scope_decision(Scope, Subject, _).
	-
	- %nested scope demand propagation
	-%ASSERT: NO DECISION CHECKS. because decisions linked to a leaf(function execution sites) scopes
	-bind_scope_demand(Scope, Subject):- bind_scope_demand(ScopeChild, Subject), cfa_parent(ScopeChild, scope(Scope)).
	-bind_function_demand(Fn, Subject):- bind_scope_demand(Scope, Subject), cfa_parent(Scope, function(Fn)).
	-
	- %inter-function propagation demand
	-bind_scope_demand(Scope, Subject):- cfa_call(Scope, FnChild), bind_function_demand(FnChild, Subject), not bind_scope_decision(Scope, Subject, _).
	diff --git a/scripts/cfa/control-context.lp b/scripts/cfa/control-context.lp
	deleted file mode 120000
	index e2a1c99..0000000
	--- a/scripts/cfa/control-context.lp
	+++ /dev/null
	@@ -1 +0,0 @@
	-/private/prg/code/xreate/scripts/cfa/control-context-v3.lp
	\ No newline at end of file
	diff --git a/scripts/cfa/latex1.xreate b/scripts/cfa/latex1.xreate
	deleted file mode 100644
	index de4486a..0000000
	--- a/scripts/cfa/latex1.xreate
	+++ /dev/null
	@@ -1,39 +0,0 @@
	-guard:: guardA {
	- fnGuarded = function :: int
	- {0}
	-}
	-
	-guard:: guardB {
	- fnGuarded = function :: int
	- {1}
	-}
	-
	-fnEntry= function:: int; entry
	-{
	- fnA() + fnB()
	-}
	-
	-fnA = function:: int
	-{
	- context:: guards(guardA).
	- fnInterim()
	-}
	-
	-fnInterim=function:: int
	-{
	- fnMain()
	-}
	-
	-fnB = function:: int
	-{
	- context:: guards(guardB).
	- fnMain()
	-}
	-
	-fnMain = function:: int
	-{
	- switch late(argGuard):: int
	- {
	- fnGuarded()
	- }
	-}
	diff --git a/scripts/cfa/test2.assembly.lp b/scripts/cfa/test2.assembly.lp
	deleted file mode 100644
	index 567c43e..0000000
	--- a/scripts/cfa/test2.assembly.lp
	+++ /dev/null
	@@ -1,10 +0,0 @@
	-
	-dfa_callguard(InstSymbRet, Guard):- %static local decision
	- bind_scope(Scope, callguard(Guard), strong);
	- bind(InstSymbRet, dfa_polym(cntxt));
	- InstSymbRet = s(_, _, Scope).
	-
	-%Register manual demand
	-kleo_registered_subjects(Scope, spec(FnCallee), Guard):-
	- bind_scope(Scope, kleo_manual_demand(FnCallee), strong);
	- cfa_function_specializations(FnCallee, Guard).
	diff --git a/scripts/cfa/test2.xreate b/scripts/cfa/test2.xreate
	deleted file mode 100644
	index 5eeb13b..0000000
	--- a/scripts/cfa/test2.xreate
	+++ /dev/null
	@@ -1,101 +0,0 @@
	-import raw ("scripts/latereasoning/context-v1.lp").
	-import raw ("scripts/latereasoning/test2.assembly.lp").
	-
	-Annotation = type variant {
	- Num:: int,
	- String:: string,
	- Func:: {name::string, arguments::[Annotation]}
	-}.
	-
	-FnControl = type variant {
	- Variant1, Variant2
	-}.
	-
	-main = function:: int; entry {
	- funcA() + funcB() :: int
	-}
	-
	-funcA = function::int{
	- context:: variant1.
	-
	- testedFunc(prepareCtrlArg("testedFunc", intrinsic query_scope()))
	-}
	-
	-funcB = function::int {
	- context:: variant2.
	-
	- testedFunc(prepareCtrlArg("testedFunc", intrinsic query_scope()))
	-}
	-
	-testedFunc = function(ctrl::FnControl):: int {
	- context:: kleo_manual_demand(funcC).
	-
	- switch variant(ctrl)::int
	- case(Variant1){context:: callguard(variant1). funcC():: int; dfa_polym(cntxt)}
	- case(Variant2){context:: callguard(variant2). funcC():: int; dfa_polym(cntxt)}
	-}
	-
	-guard:: variant1 {
	- funcC = function:: int {1}
	-}
	-
	-guard:: variant2 {
	- funcC = function:: int {2}
	-}
	-
	-selectSecond = function (db:: [Annotation], argFirst::Annotation):: Annotation; interpretation(force) {
	- resultWrong = String("wrong")::Annotation.
	-
	- loop fold(db->entry:: Annotation, resultWrong->result):: Annotation{
	- switch variant(entry):: Annotation
	- case (Num) {resultWrong}
	- case (String) {resultWrong}
	-
	- case (Func) {
	- if(entry["arguments"][0] == argFirst)::Annotation
	- {entry["arguments"][1]::Annotation; break}
	- else {result}
	- }
	- }
	-}
	-
	-selectThird = function (db:: [Annotation], argFirst::Annotation, argSecond:: Annotation):: Annotation; interpretation(force){
	- resultWrong = String("wrong")::Annotation.
	-
	- loop fold(db->entry:: Annotation, resultWrong->result):: Annotation{
	- switch variant(entry):: Annotation
	- case (Num) {resultWrong}
	- case (String) {resultWrong}
	-
	- case (Func) {
	- if(entry["arguments"][0] == argFirst)::Annotation{
	- if (entry["arguments"][1] == argSecond):: Annotation{
	- entry["arguments"][2]:: Annotation; break
	- } else {result}
	- } else {result}
	- }
	- }
	-}
	-
	-prepareCtrlArg = function(fnName:: string; interpretation(force),
	- scope:: Annotation; interpretation(force))
	- :: FnControl {
	-
	- demandsDb = intrinsic query("kleo_fn_demand")::[Annotation].
	- decisionsDb = intrinsic query("kleo_scope_decision")::[Annotation].
	-
	- demandKey = selectSecond(demandsDb, Func({name = fnName, arguments = []})):: Annotation.
	- decisionKey = Func({name="kleo_arg", arguments=[demandKey]}):: Annotation.
	-
	- decision = selectThird(decisionsDb, scope, decisionKey)::Annotation.
	-
	- switch variant(decision):: FnControl
	- case (Num) {Variant1()}
	- case (String) {Variant1()}
	- case (Func) {
	- switch(decision["name"]):: FnControl
	- case("variant1") {Variant1()}
	- case("variant2") {Variant2()}
	- case default {Variant1()}
	- }
	-}
	diff --git a/scripts/latereasoning/context-v1.lp b/scripts/latereasoning/context-v1.lp
	deleted file mode 100644
	index f0a7feb..0000000
	--- a/scripts/latereasoning/context-v1.lp
	+++ /dev/null
	@@ -1,47 +0,0 @@
	-%INPUT:
	-% kleo_registered_subjects(Scope, Option, Subject)
	-
	-%bind_scope_decision - scope has decision for demand of one of its subscopes.
	-
	-% CLIENTS
	-%===========================================================
	-% clients defined downstream
	-
	-%Register fn argument demand
	-kleo_registered_subjects(ScopeCaller, kleo_arg(Subject), Guard):-
	- kleo_fn_demand(Fn, Subject);
	- cfa_parent(ScopeCallee, function(Fn));
	- kleo_registered_subjects(ScopeCallee, Subject, Guard);
	- cfa_call(ScopeCaller, Fn).
	-
	-% DEMAND
	-%===========================================================
	-
	-%local demand
	-kleo_scope_demand(Scope, Subject):-
	- not kleo_scope_decision(Scope, Subject, _);
	- kleo_registered_subjects(Scope, Subject, Decision).
	-
	-%demand propagation: scope
	-kleo_scope_demand(Scope, Subject):-
	- kleo_scope_demand(ScopeChild, Subject);
	- cfa_parent(ScopeChild, scope(Scope)).
	-
	-%propagation: interfn
	-kleo_fn_demand(Fn, Subject):-
	- kleo_scope_demand(ScopeFnBody, Subject);
	- cfa_parent(ScopeFnBody, function(Fn)).
	-
	-
	-% DECISIONS
	-%===========================================================
	-
	-%local decision
	-kleo_scope_decision(Scope, Subject, Decision):-
	- bind_scope(Scope, Decision, strong);
	- kleo_registered_subjects(Scope, Subject, Decision).
	-
	-%interfn decision
	-%kleo_scope_decision(ScopeSource, parameter(Subject), Decision):-
	-% weak(bind_scope(Scope, Decision), ScopeSource);
	-% kleo_registered_subjects(Scope, Subject, Decision).
	diff --git a/scripts/latereasoning/test2.assembly.lp b/scripts/latereasoning/test2.assembly.lp
	deleted file mode 100644
	index 567c43e..0000000
	--- a/scripts/latereasoning/test2.assembly.lp
	+++ /dev/null
	@@ -1,10 +0,0 @@
	-
	-dfa_callguard(InstSymbRet, Guard):- %static local decision
	- bind_scope(Scope, callguard(Guard), strong);
	- bind(InstSymbRet, dfa_polym(cntxt));
	- InstSymbRet = s(_, _, Scope).
	-
	-%Register manual demand
	-kleo_registered_subjects(Scope, spec(FnCallee), Guard):-
	- bind_scope(Scope, kleo_manual_demand(FnCallee), strong);
	- cfa_function_specializations(FnCallee, Guard).
	diff --git a/scripts/latereasoning/test2.xreate b/scripts/latereasoning/test2.xreate
	deleted file mode 100644
	index 5eeb13b..0000000
	--- a/scripts/latereasoning/test2.xreate
	+++ /dev/null
	@@ -1,101 +0,0 @@
	-import raw ("scripts/latereasoning/context-v1.lp").
	-import raw ("scripts/latereasoning/test2.assembly.lp").
	-
	-Annotation = type variant {
	- Num:: int,
	- String:: string,
	- Func:: {name::string, arguments::[Annotation]}
	-}.
	-
	-FnControl = type variant {
	- Variant1, Variant2
	-}.
	-
	-main = function:: int; entry {
	- funcA() + funcB() :: int
	-}
	-
	-funcA = function::int{
	- context:: variant1.
	-
	- testedFunc(prepareCtrlArg("testedFunc", intrinsic query_scope()))
	-}
	-
	-funcB = function::int {
	- context:: variant2.
	-
	- testedFunc(prepareCtrlArg("testedFunc", intrinsic query_scope()))
	-}
	-
	-testedFunc = function(ctrl::FnControl):: int {
	- context:: kleo_manual_demand(funcC).
	-
	- switch variant(ctrl)::int
	- case(Variant1){context:: callguard(variant1). funcC():: int; dfa_polym(cntxt)}
	- case(Variant2){context:: callguard(variant2). funcC():: int; dfa_polym(cntxt)}
	-}
	-
	-guard:: variant1 {
	- funcC = function:: int {1}
	-}
	-
	-guard:: variant2 {
	- funcC = function:: int {2}
	-}
	-
	-selectSecond = function (db:: [Annotation], argFirst::Annotation):: Annotation; interpretation(force) {
	- resultWrong = String("wrong")::Annotation.
	-
	- loop fold(db->entry:: Annotation, resultWrong->result):: Annotation{
	- switch variant(entry):: Annotation
	- case (Num) {resultWrong}
	- case (String) {resultWrong}
	-
	- case (Func) {
	- if(entry["arguments"][0] == argFirst)::Annotation
	- {entry["arguments"][1]::Annotation; break}
	- else {result}
	- }
	- }
	-}
	-
	-selectThird = function (db:: [Annotation], argFirst::Annotation, argSecond:: Annotation):: Annotation; interpretation(force){
	- resultWrong = String("wrong")::Annotation.
	-
	- loop fold(db->entry:: Annotation, resultWrong->result):: Annotation{
	- switch variant(entry):: Annotation
	- case (Num) {resultWrong}
	- case (String) {resultWrong}
	-
	- case (Func) {
	- if(entry["arguments"][0] == argFirst)::Annotation{
	- if (entry["arguments"][1] == argSecond):: Annotation{
	- entry["arguments"][2]:: Annotation; break
	- } else {result}
	- } else {result}
	- }
	- }
	-}
	-
	-prepareCtrlArg = function(fnName:: string; interpretation(force),
	- scope:: Annotation; interpretation(force))
	- :: FnControl {
	-
	- demandsDb = intrinsic query("kleo_fn_demand")::[Annotation].
	- decisionsDb = intrinsic query("kleo_scope_decision")::[Annotation].
	-
	- demandKey = selectSecond(demandsDb, Func({name = fnName, arguments = []})):: Annotation.
	- decisionKey = Func({name="kleo_arg", arguments=[demandKey]}):: Annotation.
	-
	- decision = selectThird(decisionsDb, scope, decisionKey)::Annotation.
	-
	- switch variant(decision):: FnControl
	- case (Num) {Variant1()}
	- case (String) {Variant1()}
	- case (Func) {
	- switch(decision["name"]):: FnControl
	- case("variant1") {Variant1()}
	- case("variant2") {Variant2()}
	- case default {Variant1()}
	- }
	-}

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