grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.common.Terminals
generate myDsl "http://www.xtext.org/example/mydsl/MyDsl"
import "http://www.eclipse.org/emf/2002/Ecore" as ecore
Model:
     (imports+=Import)?
     section=Section   
;
FQN: ID ("." ID)*;
Import:
	'import' importURI=[Section|STRING];

Section: 'section' name=STRING
	items+= (Entity  | Dictionary | Rule)*	;

Entity:        'entity' name=ID;
Dictionary:
        'RecommendedValues' 'for' entity=[Entity|FQN]
        '[' values+= RecommendedValueItem+ ']' ;
RecommendedValueItem:   name=STRING;

Rule:
        'Selected' 'value' 'for' entity=[Entity|FQN] 'in' '[' (values+=Value)? ']';

Value:
	value1=[RecommendedValueItem|FQN] '->' value2 [RecommendedValueItem|FQN];

@Override
	public IScope getScope(EObject context, EReference ref) {

		if (ref == MyDslPackage.Literals.VALUE__VALUE1) {
 			if (context instanceof Entity) {
 				// Entity from the same has valid name value
 				// Entity from different file has null name value
				System.out.println (((Entity) context).getName());
			}
		}	
		
		return super.getScope(context, ref);
	}

section "base"
entity E1
entity E2
RecommendedValues for E1 [ "V1" "V2"]
RecommendedValues for E2 [ "V3" "V4"]

import "base"

section "rules"
entity Local
RecommendedValues for Local [ "L1" "L2"]
Selected value for Local in [ L1 -> L2 ]