ttcn3mapping.etl

import "logging.eol";
import "common.eol";
import "helper.eol";
import "debug.eol";

pre { 
    ("Transforming..").log(1);
    //TODO:export configuration
      
    //use data mapping
    var useDataMapping = false;
    //??
    var transformAlt = true;
    //generate functions to simulate the SUT 
    var simulateSUT = false;
    //generate testcases
    var createTestcase = true;
    //generate SimpleDataType subtype
    var generateSDT = true;
    //resolve Integer to integer, etc.
    var resolvePredefined = true;
    //generate qualified names
    var qualifiedNaming = false;
    //generate age timers
    var generateAgeTimers = true;

    var predefined = new Set();
    predefined.add("String");
    predefined.add("Integer");
    predefined.add("Boolean");
    predefined.add("Verdict");

    var mpElapsedTime;

    var f = new TTCN!TTCN3File();
    var stack = new Map();
}

post {
    //Clean orphaned module defnition lists
    for (m in TTCN!TTCN3Module.allInstances()) {
        if (m.defs.isDefined() and m.defs.definitions.isEmpty()) {
            delete m.defs;
        }
    }
    ("Done!").log(1);
    
}

rule Package2Module 
    transform p : TDL!Package
    to m : TTCN!TTCN3Module {
    //guard : true
    //TODO: to support annotations and test objectives 
    //      need to add contained comments as a feature
    //      in modules
    //TODO: to support annotations and comments for elements 
    //      need to add contained comments as a feature
    //      in module definitions
    ("  "+p.name).log(1);
    m.name = p.TTCNname();
    f.modules.add(m);
    if (p.packagedElement.notEmpty() or p.`import`.notEmpty()) {
	    m.defs = new TTCN!ModuleDefinitionsList();
	    
	    if (generateAgeTimers) {
		    //default MP for component lifetime
		    var md = new TTCN!ModuleDefinition();
	        md.def = new TTCN!ModuleParDef;
	        md.def.param = new TTCN!ModulePar;
	        md.def.param.type = new TTCN!Type();
	        md.def.param.type.`pre` = "float";
	        md.def.param.list = new TTCN!ModuleParList;
	        
	        var mp = new TTCN!ModuleParameter;
	        mp.name = "mp_componentElapsedTimerMaxDuration";
	        md.def.param.list.params.add(mp);
	        
	        mpElapsedTime = mp;
	        
	        m.defs.definitions.add(md);
	    }
    }
}

rule ElementImport2ImportDef 
    transform ei : TDL!ElementImport
    to i : TTCN!ImportDef {
    i.name = ei.importedPackage.equivalent().name;
    //i.name = "mappings";
    
    var md = new TTCN!ModuleDefinition();
    md.def = i;
    var m = ei.eContainer.equivalent();
    m.defs.definitions.add(md);
    
    if (ei.importedElement.notEmpty()) {
	    i.importSpec = new TTCN!ImportSpec();
	    for (ie in ei.importedElement.select(x|x.equivalent().isDefined())) {
            var e = new TTCN!ImportElement();		    
	        //TODO: make reusable, extend to other types
		    if (ie.isKindOf(TDL!DataType) 
		      or ie.isKindOf(TDL!GateType)
		      or ie.isKindOf(TDL!ComponentType)) {
		        e.type = new TTCN!ImportTypeDefSpec();
		        e.~kind = e.type;
		    } else if (ie.isKindOf(TDL!DataInstance)) {
                //TODO: check if it is a constant instead
                if (ie.isValue()) {
	                e.const = new TTCN!ImportConstSpec();
	                e.~kind = e.const;
                } else {
		            e.template = new TTCN!ImportTemplateSpec();
		            e.~kind = e.template;
                }
            } else if (ie.isKindOf(TDL!Function)) {
                e.`function` = new TTCN!ImportFunctionSpec();
                e.~kind = e.`function`;
	        } else {
    	        //TODO: handle others
    	        ("Imports for " + ie.type.name + " are not supported yet!").log(1);
    	        delete e;
    	        continue;
	        }

	        e.~kind.idOrAll = new TTCN!IdentifierListOrAllWithExcept();
	        e.~kind.idOrAll.idList = new TTCN!IdentifierList();
	        //TODO: resolve if imported from mappings?
	        //TODO: extract equivalent name resolution to an operation
	        if (e.const.isDefined()) {
	            e.~kind.idOrAll.idList.ids.add(ie.equivalent().defs.list.get(0).name);
            } else if (e.template.isDefined()) {
                e.~kind.idOrAll.idList.ids.add(ie.equivalent().base.name);
	        } else {
		        e.~kind.idOrAll.idList.ids.add(ie.equivalent().name);
	        }
		    i.importSpec.element.add(e);
	    }
    } else {
        i.all = new TTCN!AllWithExcepts();
    }
    
    
}


rule DRM2ImportDef 
    transform drm : TDL!DataResourceMapping
    to i : TTCN!ImportDef {
    guard : useDataMapping
    i.name = drm.resourceURI.replaceAll("\"","");
    //i.name = "mappings";
    
    var md = new TTCN!ModuleDefinition();
	md.def = i;
    var m = drm.eContainer.equivalent();
    m.defs.definitions.add(md);

	i.importSpec = new TTCN!ImportSpec();
}

rule DEM2ImportElement
    transform dem : TDL!DataElementMapping
    to e : TTCN!ImportElement {
    guard : useDataMapping
    
    var i = dem.dataResourceMapping.equivalent();
	i.importSpec.element.add(e);
	
	if (dem.mappableDataElement.isKindOf(TDL!DataType)) {
		e.type = new TTCN!ImportTypeDefSpec();
		e.type.idOrAll = new TTCN!IdentifierListOrAllWithExcept();
		e.type.idOrAll.idList = new TTCN!IdentifierList();
		e.type.idOrAll.idList.ids.add(dem.elementURI.replaceAll("\"",""));
		
	} else {
		if (dem.mappableDataElement.isKindOf(TDL!DataInstance)) {
			e.template = new TTCN!ImportTemplateSpec();
			e.template.idOrAll = new TTCN!IdentifierListOrAllWithExcept();
			e.template.idOrAll.idList = new TTCN!IdentifierList();
			e.template.idOrAll.idList.ids.add(dem.elementURI.replaceAll("\"",""));
		} else {
		}
		//TODO: handle others
	}
}

//Generative, use mappings instead
rule SimpleDT2R 
    transform dt : TDL!SimpleDataType
    to s : TTCN!SubTypeDefNamed {
    guard : not useDataMapping and not (resolvePredefined and predefined.includes(dt.name))
    
    s.name = dt.TTCNname();
    
    s.type = new TTCN!Type();

    //TODO: handle predefined data types
    var m = dt.eContainer.equivalent();
    if (generateSDT) {
	    //create default simple data type?
	    s.type.ref = new TTCN!TypeReference(); 
	    s.type.ref.head = m.getSDT(); 
    } else {
        s.type.`pre` = "charstring";
    }
    
	var t = m.createTypeDefBody();
    t.sub = s;
}

//Generative, use mappings instead
rule StructuredDT2R 
    transform dt : TDL!StructuredDataType
    to r : TTCN!RecordDefNamed {
    guard : not useDataMapping
        
    r.name = dt.TTCNname();
    
    var module = dt.eContainer.equivalent();
	var t = module.createTypeDefBody();    

    t.structured = new TTCN!StructuredTypeDef();
    t.structured.record = r;
	
	r.body = new TTCN!StructDefBody();	
}

//Generative, use mappings instead
rule CollectionDT2RoR 
    transform dt : TDL!CollectionDataType
    to r : TTCN!RecordOfDefNamed {
    guard : not useDataMapping
        
    r.name = dt.TTCNname();
    
    var module = dt.eContainer.equivalent();
    var t = module.createTypeDefBody();    

    t.structured = new TTCN!StructuredTypeDef();
    t.structured.recordOf = r;
    
    r.type = dt.itemType.getTTCNType();  
}


rule M2SFD 
    transform m : TDL!Member
    to f : TTCN!StructFieldDef {
    guard : not useDataMapping
    
    f.name = m.TTCNname();
    if (m.isOptional) {
        f.optional = "optional";
    }
    f.type = m.dataType.getTTCNType();
    
    var r = m.eContainer.equivalent();
    r.body.defs.add(f);
}

//Generative, use mappings instead
rule Action2FD 
    transform a : TDL!Action
    to fd : TTCN!FunctionDef {
    guard : not useDataMapping
        
    fd.name = a.TTCNname();
    
    var md = new TTCN!ModuleDefinition();
    md.def = fd;
    var m = a.eContainer.equivalent();
    m.defs.definitions.add(md);
    
    fd.statement = new TTCN!StatementBlock();
    
    //TODO: fix formatting
    if (a.formalParameter.notEmpty()) {
        fd.parameterList = new TTCN!FunctionFormalParList(); 
        for (p in a.formalParameter) {
            var fp = new TTCN!FunctionFormalPar();
            //TODO: support for value parameters?
            // -> process annotation
            // -> extract into a rule to make use of equivalent?
            fp.template = new TTCN!FormalTemplatePar();
            fp.~kind = fp.template;
            
            fp.~kind.name = p.TTCNname();
            
            //TODO: direction support?
            
            fp.~kind.type = p.dataType.getTTCNType();
            
            fd.parameterList.params.add(fp);
        }
    }
    //TODO: add support for body?
}

//Generative, use mappings instead
rule Function2FD 
    transform f : TDL!Function
    to fd : TTCN!FunctionDef {
    guard : not useDataMapping
        
    fd.name = f.TTCNname();
    
    var md = new TTCN!ModuleDefinition();
    md.def = fd;
    var m = f.eContainer.equivalent();
    m.defs.definitions.add(md);
    
    fd.statement = new TTCN!StatementBlock();
    
    //TODO: fix formatting
    if (f.formalParameter.notEmpty()) {
        fd.parameterList = new TTCN!FunctionFormalParList(); 
	    for (p in f.formalParameter) {
	        var fp = new TTCN!FunctionFormalPar();
	        //TODO: support for value parameters?
	        // -> process annotation
            // -> extract into a rule to make use of equivalent?
	        fp.template = new TTCN!FormalTemplatePar();
	        fp.~kind = fp.template;
	        
	        fp.~kind.name = p.TTCNname();
	        
	        //TODO: direction support?
	        
	        fp.~kind.type = p.dataType.getTTCNType();
	        
	        fd.parameterList.params.add(fp);
	    }
    }
    fd.returnType = new TTCN!ReturnType();
    fd.returnType.type = f.returnType.getTTCNType();
    //TODO: add support for body?
    //TODO: add distinction between value and template?
}


rule TC2FD
    transform tc : TDL!TestConfiguration
    to fd : TTCN!FunctionDef {
    
    fd.name = tc.TTCNname();
    
    var md = new TTCN!ModuleDefinition();
    md.def = fd;

    var m = tc.eContainer.equivalent();
	m.defs.definitions.add(md);

	//CREATE MTC TYPE
	var mtc = m.createTypeDefBody();    
    mtc.structured = new TTCN!StructuredTypeDef();
    mtc.structured.component = new TTCN!ComponentDef();
    mtc.structured.component.name = "MTC_"+tc.TTCNname();

	//CREATE SYSTEM TYPE 
	//TODO: Is this necessary?
	var sut = m.createTypeDefBody();    
    sut.structured = new TTCN!StructuredTypeDef();
    sut.structured.component = new TTCN!ComponentDef();
    sut.structured.component.name = "SYSTEM_"+tc.TTCNname();

	fd.runsOn = new TTCN!RunsOnSpec();
	fd.runsOn.component = mtc.structured.component;
	
	fd.statement = new TTCN!StatementBlock();
	
	var sl = new TTCN!FunctionStatementList();
	fd.statement.stat.add(sl);

	//create components
	for (ci in tc.componentInstance.select(c|simulateSUT or c.role.name = "Tester")) {
		var s = new TTCN!FunctionStatement();
		s.basic = new TTCN!BasicStatements();
		s.basic.assign = new TTCN!Assignment();
		s.basic.assign.ref = new TTCN!VariableRef();
		s.basic.assign.ref.ref = new TTCN!ReferencedValue();
		s.basic.assign.ref.ref.head = new TTCN!Head();
		s.basic.assign.ref.ref.head.target = ci.equivalent();
		
		s.basic.assign.expression = new TTCN!OpCall();
		s.basic.assign.expression.configuration = new TTCN!ConfigurationOps();
		s.basic.assign.expression.configuration.create = new TTCN!CreateOp();
		s.basic.assign.expression.configuration.create.type = ci.type.equivalent();
		 
		sl.statements.add(s);
		sl.sc.add(";");
	}
	
    //merge ports of SUT components into sut 
    for (ci in tc.componentInstance.select(c|not simulateSUT and c.role.name = "SUT")) {
        for (gi in ci.type.gateInstance) {
	        var pe = new TTCN!PortElement();
	
		    pe.name = gi.TTCNname()+"_SUT";
		
		    var d = new TTCN!ComponentDefList();
		    sut.structured.component.defs.add(d);
		
		    d.sc = ";";
		    d.element = new TTCN!ComponentElementDef();
		    d.element.port = new TTCN!PortInstance();
		
		    d.element.port.ref = gi.type.equivalent();
		    d.element.port.instances.add(pe);
        }
    }	
	
	//create connections
	for (c in tc.connection) {
	    if (simulateSUT or 
	          (c.endPoint.get(0).component.role.name = "Tester" and 
	           c.endPoint.get(1).component.role.name = "Tester" )) {
			
			var s = new TTCN!FunctionStatement();
			s.configuration = new TTCN!ConfigurationStatements();
			s.configuration.connect = new TTCN!ConnectStatement();
			s.configuration.connect.spec = new TTCN!SingleConnectionSpec();
			s.configuration.connect.spec.port1 = c.endPoint.get(0).equivalent();
			s.configuration.connect.spec.port2 = c.endPoint.get(1).equivalent();
			sl.statements.add(s);
			sl.sc.add(";");
	    } else {
	    
            var s = new TTCN!FunctionStatement();
            s.configuration = new TTCN!ConfigurationStatements();
            s.configuration.map = new TTCN!MapStatement();
            s.configuration.map.spec = new TTCN!SingleConnectionSpec();
            s.configuration.map.spec.port1 = c.endPoint.get(0).equivalent();
            s.configuration.map.spec.port2 = c.endPoint.get(1).equivalent();
            sl.statements.add(s);
            sl.sc.add(";");
	    }
	}

}

rule TD2FD 
    transform td : TDL!TestDescription
    to fd : TTCN!FunctionDef {
    
    fd.name = td.TTCNname();
    
    var md = new TTCN!ModuleDefinition();
    md.def = fd;

    var m = td.eContainer.equivalent();
	m.defs.definitions.add(md);
	
	fd.runsOn = new TTCN!RunsOnSpec();
	fd.runsOn.component = ("MTC_"+td.testConfiguration.TTCNname()).getComponent();

	fd.statement = new TTCN!StatementBlock();

	stack.put(fd.name,new OrderedSet());
	stack.get(fd.name).add(fd.statement);

	var sl = new TTCN!FunctionStatementList();
	fd.statement.stat.add(sl);
	
	if (not createTestcase) {
		var s = new TTCN!FunctionStatement();
		s.behavior = new TTCN!BehaviourStatements();
		s.behavior.`function` = new TTCN!FunctionInstance();
		s.behavior.`function`.ref = td.testConfiguration.equivalent();

		sl.statements.add(s);
		sl.sc.add(";");
	}
	

	for (ci in td.testConfiguration.componentInstance) {
		var cf = new TTCN!FunctionDef();
		cf.name = td.TTCNname()+"_"+ci.TTCNname()+"_main";
    
    	var md = new TTCN!ModuleDefinition();
    	md.def = cf;

    	var m = td.eContainer.equivalent();
		m.defs.definitions.add(md);
	
		cf.runsOn = new TTCN!RunsOnSpec();
		cf.runsOn.component = ci.type.equivalent();
		cf.statement = new TTCN!StatementBlock();
	
		stack.put(cf.name,new OrderedSet());
		stack.get(cf.name).add(cf.statement);
	
		var fs = new TTCN!FunctionStatement();
		fs.configuration = new TTCN!ConfigurationStatements();
		fs.configuration.startTc = new TTCN!StartTCStatement();
		fs.configuration.startTc.ref = new TTCN!ComponentOrDefaultReference();
		fs.configuration.startTc.ref.variable = new TTCN!VariableRef();
		fs.configuration.startTc.ref.variable.ref = new TTCN!ReferencedValue();
		fs.configuration.startTc.ref.variable.ref.head = new TTCN!Head();
		fs.configuration.startTc.ref.variable.ref.head.target = ci.equivalent();

		fs.configuration.startTc.`function` = new TTCN!FunctionInstance();
		fs.configuration.startTc.`function`.ref = cf; 
		
		sl.statements.add(fs);
		sl.sc.add(";");
		
	}	
	
	if (td.behaviourDescription.isDefined()) {
		td.behaviourDescription.behaviour.execute();
	}
	
	stack.clear();
	
	if (createTestcase) {
		var tc = new TTCN!TestcaseDef();
		tc.name = "tc_"+td.TTCNname();
	    
	    var tmd = new TTCN!ModuleDefinition();
	    tmd.def = tc;
	
		m.defs.definitions.add(tmd);
		
		tc.spec = new TTCN!ConfigSpec();
		tc.spec.runsOn = new TTCN!RunsOnSpec();
		tc.spec.runsOn.component = ("MTC_"+td.testConfiguration.TTCNname()).getComponent();
		tc.spec.systemSpec = new TTCN!SystemSpec();
		tc.spec.systemSpec.component = ("SYSTEM_"+td.testConfiguration.TTCNname()).getComponent();
	
		tc.statement = new TTCN!StatementBlock();
	
		stack.put(tc.name,new OrderedSet());
		stack.get(tc.name).add(tc.statement);
	
		var tsl = new TTCN!FunctionStatementList();
		tc.statement.stat.add(tsl);
		
		//setup configuration
		var tsc = new TTCN!FunctionStatement();
		tsc.behavior = new TTCN!BehaviourStatements();
		tsc.behavior.`function` = new TTCN!FunctionInstance();
		tsc.behavior.`function`.ref = td.testConfiguration.equivalent();
		
		tsl.statements.add(tsc);
		tsl.sc.add(";");

		//start behaviour
		var tsb = new TTCN!FunctionStatement();
		tsb.behavior = new TTCN!BehaviourStatements();
		tsb.behavior.`function` = new TTCN!FunctionInstance();
		tsb.behavior.`function`.ref = fd;
		
		tsl.statements.add(tsb);
		tsl.sc.add(";");

		//all done
		var tsd = new TTCN!FunctionStatement();
		tsd.configuration = new TTCN!ConfigurationStatements();
		tsd.configuration.done = new TTCN!DoneStatement();
		tsd.configuration.done.component = new TTCN!ComponentOrAny();
		tsd.configuration.done.component.all = "all";

		tsl.statements.add(tsd);
		tsl.sc.add(";");

	}
	
}

rule GR2PR 
    transform gr : TDL!GateReference
    to pr : TTCN!PortRef {
	//guard : false
	
	var cr = new TTCN!ComponentRef();
	
	if (simulateSUT or gr.component.role.name = "Tester" ) {
		cr.ref = new TTCN!ComponentOrDefaultReference();
		cr.ref.variable = new TTCN!VariableRef();
		cr.ref.variable.ref = new TTCN!ReferencedValue();
		cr.ref.variable.ref.head = new TTCN!Head();
		cr.ref.variable.ref.head.target = gr.component.equivalent();
	} else {
	    cr.system = "system";
	    //TODO: is there a case for cr.mtc? 
	}
	pr.component = cr;
		
	pr.port = gr.gate.equivalent();
}


rule CT2C 
    transform ct : TDL!ComponentType
    to c : TTCN!ComponentDef {

    c.name = ct.TTCNname();

    var m = ct.eContainer.equivalent();
    var t = m.createTypeDefBody();    

    t.structured = new TTCN!StructuredTypeDef();
    t.structured.component = c;

    if (generateAgeTimers) {
	    var ti = new TTCN!SingleVarInstance();
	    ti.name = "T_elapsedTimeOfComponent";  
	    ti.ac = ":="; //TODO: Why is this needed?
	    ti.expr = new TTCN!Value();
	    ti.expr.ref = new TTCN!ReferencedValue();
	    ti.expr.ref.head = new TTCN!Head;
	    ti.expr.ref.head.target = mpElapsedTime;
	      
	    var d = new TTCN!ComponentDefList();
	    c.defs.add(d);
	
	    d.sc = ";";
	    d.element = new TTCN!ComponentElementDef();
	    
	    d.element.timer = new TTCN!TimerInstance();
	    d.element.timer.list = new TTCN!VarList();
	    d.element.timer.list.variables.add(ti);
    }
    
}


rule CI2V 
    transform ci : TDL!ComponentInstance
    to v : TTCN!SingleVarInstance {
    guard : simulateSUT or ci.role.name = "Tester"

    v.name = ci.TTCNname(); 
    
	var d = new TTCN!ComponentDefList();
    d.sc = ";";
    d.element = new TTCN!ComponentElementDef();
    d.element.variable = new TTCN!VarInstance();
    d.element.variable.listType = new TTCN!Type(); 
    d.element.variable.listType.ref = new TTCN!TypeReference();
    d.element.variable.listType.ref.head = ci.type.equivalent();
	d.element.variable.list = new TTCN!VarList();
	
	d.element.variable.list.variables.add(v);

	var mtc = ("MTC_"+ci.eContainer().TTCNname()).getComponent();
	mtc.defs.add(d);
}


rule GT2P 
    transform gt : TDL!GateType
    to p : TTCN!PortDef {
    //guard : true
    p.name = gt.TTCNname();

    var m = gt.eContainer.equivalent();
    var t = m.createTypeDefBody();    

    t.structured = new TTCN!StructuredTypeDef();
    t.structured.port = p;

    p.body = new TTCN!PortDefBody();
    p.body.attribs = new TTCN!PortDefAttribs();
    
    if (gt.kind.name = "Message") {
	    p.body.attribs.message = new TTCN!MessageAttribs();
	    //FIX
	    var ml = new TTCN!MessageList();
	    ml.direction = "inout";
	    ml.allOrTypeList = new TTCN!AllOrTypeList();
	    ml.allOrTypeList.typeList = new TTCN!TypeList();
	    p.body.attribs.message.messages.add(ml);
	    
	    //ADAPT
	    for (dt in gt.dataType) {
	        var t = dt.getTTCNType();
	        ml.allOrTypeList.typeList.types.add(t);
	    }
    } else {
        //TODO: handle procedure based gates..
    }
    
}

rule GI2PE
    transform gi : TDL!GateInstance
    to pe : TTCN!PortElement {

    pe.name = gi.TTCNname();

    var c = gi.eContainer.equivalent();
    var d = new TTCN!ComponentDefList();
    c.defs.add(d);

    d.sc = ";";
    d.element = new TTCN!ComponentElementDef();
    d.element.port = new TTCN!PortInstance();

    d.element.port.ref = gi.type.equivalent();
    d.element.port.instances.add(pe);
}	    

rule T2TI 
    transform t : TDL!Timer
    to ti : TTCN!SingleVarInstance {
    
    ti.name = t.TTCNname();

    var c = t.eContainer.equivalent();
    var d = new TTCN!ComponentDefList();
    c.defs.add(d);

    d.sc = ";";
    d.element = new TTCN!ComponentElementDef();
    
    d.element.timer = new TTCN!TimerInstance();
    d.element.timer.list = new TTCN!VarList();
    d.element.timer.list.variables.add(ti);
}

rule V2VI 
    transform v : TDL!Variable
    to vi : TTCN!SingleVarInstance {

    vi.name = v.TTCNname();

    var c = v.eContainer.equivalent();
    var d = new TTCN!ComponentDefList();
    c.defs.add(d);

    d.sc = ";";
    d.element = new TTCN!ComponentElementDef();
    
    d.element.variable = new TTCN!VarInstance();
    d.element.variable.listType = v.dataType.getTTCNType();
    d.element.variable.list = new TTCN!VarList();
    d.element.variable.list.variables.add(vi);
}


rule SimpleDI2TD
	transform di : TDL!SimpleDataInstance
	to td : TTCN!TemplateDef {
	//guard : false
    guard : not useDataMapping and not di.isValue() and di.dataType.name <> "Verdict"

    var md = new TTCN!ModuleDefinition();
	md.def = td;
    var m = di.eContainer.equivalent();
    m.defs.definitions.add(md);
    
    td.base = new TTCN!BaseTemplate();
    td.base.name = di.TTCNname();
    td.base.type = di.dataType.getTTCNType();

	var tb = new TTCN!TemplateBody();
    td.body = tb;
	tb.simple = new TTCN!SimpleSpec();
	tb.simple.expr = new TTCN!Value();
	tb.simple.expr.predef = new TTCN!PredefinedValue();
	tb.simple.expr.predef.charString = "\""+di.name+"\"";

}

rule SimpleDI2C
    transform di : TDL!SimpleDataInstance
    to cd : TTCN!ConstDef {
    //guard : false
    guard : not useDataMapping and di.isValue()

    var md = new TTCN!ModuleDefinition();
    md.def = cd;
    var m = di.eContainer.equivalent();
    m.defs.definitions.add(md);

    cd.type = di.dataType.getTTCNType();
    
    cd.defs = new TTCN!ConstList();

    var scd = new TTCN!SingleConstDef;
    scd.name = di.TTCNname();
    scd.expr = new TTCN!Value();
    scd.expr.predef = new TTCN!PredefinedValue();
    scd.expr.predef.charString = "\""+di.name+"\"";

    scd.assign = ":="; //TODO: this shall not be necessary

    cd.defs.list.add(scd);
}

rule StructuredDI2TD
    transform di : TDL!StructuredDataInstance
    to td : TTCN!TemplateDef {
    //guard : false
    guard : not useDataMapping and not di.isValue()

    var md = new TTCN!ModuleDefinition();
    md.def = td;
    var m = di.eContainer.equivalent();
    m.defs.definitions.add(md);
    
    td.base = new TTCN!BaseTemplate();
    td.base.name = di.TTCNname();
    td.base.type = di.dataType.getTTCNType();
    //TODO:unassigned fields
    //check if there is unassigned member handling
    //handle accordingly -> separate branch under .field
    var tb = new TTCN!TemplateBody();
    td.body = tb;
    
    if ((di.unassignedMember.isDefined()
           and not di.dataType.member.forAll(m|
                di.memberAssignment.exists(ma|ma.member = m)))
         //does it need to be recursive?
         or di.memberAssignment.exists(ma|
                ma.memberSpec.isKindOf(TDL!AnyValue) 
             or ma.memberSpec.isKindOf(TDL!AnyValueOrOmit))
      ) {
        //NOTE: implementation treats unset unassigned member (and other enums) as if 
        //  they have been set to the first value by default.
        //TODO: add none / omit as default option? 
//        ("Wildcard: "+di.name).log(1);
//        ("  "+di.unassignedMember+
//         "  "+di.unassignedMember.isDefined()+
//         "  "+(not di.dataType.member.forAll(m|di.memberAssignment.exists(ma|ma.member = m)))+
//         "  "+di.memberAssignment.exists(ma|ma.memberSpec.isKindOf(TDL!AnyValue) 
//              or ma.memberSpec.isKindOf(TDL!AnyValueOrOmit))).log(1);
        tb.field = di.transformWildcardMemberAssignment();
    } else {
        ("Simple: "+di.name).log(1);
	    tb.simple = new TTCN!SimpleSpec();
	    tb.simple.expr = di.transformMemberAssignment();
    }

}

rule StructuredDI2C
    transform di : TDL!StructuredDataInstance
    to cd : TTCN!ConstDef {
    //guard : false
    guard : not useDataMapping and di.isValue()

    var md = new TTCN!ModuleDefinition();
    md.def = cd;
    var m = di.eContainer.equivalent();
    m.defs.definitions.add(md);

    cd.type = di.dataType.getTTCNType();
    
    cd.defs = new TTCN!ConstList();

    var scd = new TTCN!SingleConstDef;
    scd.name = di.TTCNname();
    
    scd.expr = di.transformMemberAssignment();

    scd.assign = ":="; //TODO: this shall not be necessary

    cd.defs.list.add(scd);
}

rule CollectionDI2TD
    //TODO: the specification in the standard is insufficient
    transform di : TDL!CollectionDataInstance
    to td : TTCN!TemplateDef {
    //guard : false
    guard : not useDataMapping and not di.isValue()

    var md = new TTCN!ModuleDefinition();
    md.def = td;
    var m = di.eContainer.equivalent();
    m.defs.definitions.add(md);
    
    td.base = new TTCN!BaseTemplate();
    td.base.name = di.TTCNname();
    td.base.type = di.dataType.getTTCNType();
    //TODO:unassigned fields
    //check if there is unassigned member handling
    //handle accordingly -> separate branch under .field
    var tb = new TTCN!TemplateBody();
    td.body = tb;
    
    tb.simple = new TTCN!SimpleSpec();
    tb.simple.expr = new TTCN!ArrayExpression();
    tb.simple.expr.list = new TTCN!ArrayElementExpressionList();
    
    for (i in di.item) {
        if (i.isKindOf(TDL!DataInstanceUse) and i.dataInstance.isDefined()) {
            var v = new TTCN!Value();
            v.ref = new TTCN!ReferencedValue();
            v.ref.head = new TTCN!Head();
            
	        var e = i.dataInstance.equivalent();
	        if (e.isKindOf(TTCN!TemplateDef)) {
	            v.ref.head.target = e.base;
	        } else if (e.isKindOf(TTCN!ConstDef)) {
	            v.ref.head.target = e.defs.list.get(0);             
	        } else {
	            //what else can it be?
	        }
	        tb.simple.expr.list.expr.add(v);
        }
    }
}

rule CollectionDI2C
    //TODO: the specification in the standard is insufficient
    transform di : TDL!CollectionDataInstance
    to cd : TTCN!ConstDef {
    //guard : false
    guard : not useDataMapping and di.isValue()

    var md = new TTCN!ModuleDefinition();
    md.def = cd;
    var m = di.eContainer.equivalent();
    m.defs.definitions.add(md);
    
    
    cd.type = di.dataType.getTTCNType();
    
    cd.defs = new TTCN!ConstList();

    var scd = new TTCN!SingleConstDef;
    scd.name = di.TTCNname();
    
    scd.expr = new TTCN!ArrayExpression();
    scd.expr.list = new TTCN!ArrayElementExpressionList();

    for (i in di.item) {
        if (i.isKindOf(TDL!DataInstanceUse) and i.dataInstance.isDefined()) {
            var v = new TTCN!Value();
            v.ref = new TTCN!ReferencedValue();
            v.ref.head = new TTCN!Head();
            
            var e = i.dataInstance.equivalent();
            if (e.isKindOf(TTCN!TemplateDef)) {
                v.ref.head.target = e.base; //TODO: is that even possible here?
            } else if (e.isKindOf(TTCN!ConstDef)) {
                v.ref.head.target = e.defs.list.get(0);             
            } else {
                //what else can it be?
            }
            scd.expr.list.expr.add(v);
        }
    }

    scd.assign = ":="; //TODO: this shall not be necessary

    cd.defs.list.add(scd);
    
}

operation TTCN!TTCN3Module createTypeDefBody() : TTCN!TypeDefBody{
    var md = new TTCN!ModuleDefinition();
    md.def = new TTCN!TypeDef();
    md.def.body = new TTCN!TypeDefBody();
	self.defs.definitions.add(md);
	return md.def.body; 
}

operation Any transformSingleMemberAssignment(m : TDL!Member, mad : TDL!DataUse) : TTCN!TemplateBody {
    var body = new TTCN!TemplateBody();
    if (mad.isDefined() and mad.isKindOf(TDL!DataInstanceUse)) {
        if (mad.dataInstance.isDefined() and mad.argument.isEmpty()) {
            body.simple = new TTCN!SimpleSpec();
            body.simple.expr = new TTCN!Value();
            body.simple.expr.ref = new TTCN!ReferencedValue();
            body.simple.expr.ref.head = new TTCN!Head();
            
            //Template ->target = BaseTemplate reference
            //Constant ->target = SingleConstDef reference
            var e = mad.dataInstance.equivalent();
            if (e.isKindOf(TTCN!TemplateDef)) {
                body.simple.expr.ref.head.target = e.base;
            } else if (e.isKindOf(TTCN!ConstDef)) {
                body.simple.expr.ref.head.target = e.defs.list.get(0);             
            } else {
                //what else can it be?
            }
            
            //reduction
            //use extended field references
            var useEFR = mad.reduction.exists(mr|mr.collectionIndex.isDefined());
            
            if (useEFR) {
                for (mr in mad.reduction) {
                    if (mr.member.isDefined()) {
                        var efr = new TTCN!ExtendedFieldReference();
                        efr.field = mr.member.equivalent();
                        
                        body.simple.expr.ref.fields.add(efr);
                    }
	                if (mr.collectionIndex.isDefined() 
	                  and mr.collectionIndex.dataInstance.isDefined()) {
	                    var efr = new TTCN!ExtendedFieldReference();
	                    efr.array = new TTCN!Value();
	                    efr.array.ref = new TTCN!ReferencedValue();
	                    efr.array.ref.head = new TTCN!Head();