VariableDeclaration:
	(prefix='ext' | prefix='in' | prefix='out')? 'var' name=STR ('=' value=Expression)?
	;


VariableAssignment:
	ref=[VariableDeclaration|STR] '=' value=INT
	;

 InputStream is = new StringInputStream(s);
                Reader reader = new InputStreamReader(is);
                IParseResult result = parser.parse(reader);
                EObject eRoot = result.getRootASTElement();

Script:
	instructions+=Instruction*;
	
Instruction:
	statemement=Statement ';'
;	
	
Statement: 
	function=VariableDeclaration |
	function=VariableAssignment
	;

VariableAssignment var =  ((VariableAssignmentImpl)statement.getFunction()).getRef()

            Injector guiceInjector = new ScriptStandaloneSetup().createInjectorAndDoEMFRegistration();
            parser = guiceInjector.getInstance(ScriptParser.class);

    protected void runGenerator(String string) {
        // load the resource
        ResourceSet set = resourceSetProvider.get();
        Resource resource = set.getResource(URI.createURI(string), true);

        // validate the resource
        List<Issue> list = validator.validate(resource, CheckMode.ALL, CancelIndicator.NullImpl);
        if (!list.isEmpty()) {
            for (Issue issue : list) {
                System.err.println(issue);
            }
            return;
        }

        // configure and start the generator
        fileAccess.setOutputPath("src-gen/");
        generator.doGenerate(resource, fileAccess);
    }

                
                 Injector injector = new ScriptStandaloneSetup().createInjectorAndDoEMFRegistration();
                XtextResourceSet resourceSet = injector.getInstance(XtextResourceSet.class);
                resourceSet.addLoadOption(XtextResource.OPTION_RESOLVE_ALL, Boolean.TRUE);
                Resource resource = resourceSet.createResource(URI.createURI("platform:/resource/fr.untel.example.script/src-gen/fr/untel/example/script/Script.genmodel"));
                InputStream in = new ByteArrayInputStream(s.getBytes());
                resource.load(in, resourceSet.getLoadOptions());
                this.script = (Script) resource.getContents().get(0);