modified iterator based generated code to use model index

Author: doczir

plugins/hu.bme.mit.incquery.localsearch.cpp/src/hu/bme/mit/incquery/localsearch/cpp/generator/internal/iterator/IteratorMatcherGenerator.xtend

@@ -29,6 +29,7 @@ class IteratorMatcherGenerator extends MatcherGenerator {
 	override initialize() {
 		super.initialize
 		includes += new Include("Viatra/Query/Util/IsNull.h")
+		includes += new Include("type_traits", true)
 	}
 
 	override protected compilePlanExecution(PatternStub pattern, PatternBodyStub patternBody) '''

plugins/hu.bme.mit.incquery.localsearch.cpp/src/hu/bme/mit/incquery/localsearch/cpp/generator/internal/iterator/IteratorSearchOperationGenerator.xtend

@@ -108,7 +108,7 @@ class IteratorSearchOperationGenerator extends BaseGenerator {
 		«val type = operation.matchingFrame.getVariableStrictType(operation.variable)»
 		«val typeHelper = CppHelper::getTypeHelper(type)»
 		«val varName = operation.variable.cppName»
-		for(auto&& «varName» : («typeHelper.FQN»::_instances)) {
+		for(auto&& «varName» : (ModelIndex<std::remove_pointer<«typeHelper.FQN»>::type, ModelRoot>::instances(_model))) {
 			«compileNext(setupCode)»
 		}
 	'''