public Set<QualifiedName> getImportedNames(XtextResource resource) { XPackage xPackage = getXPackage(resource); String packageName = xPackage.getName(); List<String> implicitPackageImports = newArrayList(packageName, "java.lang"); Set<QualifiedName> importedNames = newLinkedHashSet(); Map<String, QualifiedName> implicitAliases = getImplicitAliases(); for (INode node : XcoreUtil.importableCrossReferences(xPackage)) { CrossReference grammarElement = (CrossReference) node.getGrammarElement(); EObject container = grammarElement.eContainer(); if (container instanceof Assignment) { String name = node.getText().trim(); if (name.endsWith("::")) { name = name.substring(0, name.length() - 2); } QualifiedName actualQualifiedName = nameConverter.toQualifiedName(name); Assignment assignment = (Assignment) container; String feature = assignment.getFeature(); EObject semanticObject = NodeModelUtils.findActualSemanticObjectFor(node); EStructuralFeature eStructuralFeature = semanticObject.eClass().getEStructuralFeature(feature); if (!eStructuralFeature.isMany()) { EObject eCrossReference = (EObject) semanticObject.eGet(eStructuralFeature); EObject eContainer = eCrossReference.eContainer(); if (eContainer != xPackage && !(eContainer instanceof XPackage && "xcore.lang".equals(((XPackage) eContainer).getName())) && !(eContainer instanceof GenPackage && packageName.equals(((GenPackage) eContainer).getQualifiedPackageName())) && !(eCrossReference instanceof JvmDeclaredType && implicitPackageImports.contains( ((JvmDeclaredType) eCrossReference).getPackageName()))) { QualifiedName fullyQualifiedName = nameProvider.getFullyQualifiedName(eCrossReference); if (fullyQualifiedName != null && !actualQualifiedName.equals(fullyQualifiedName) && !fullyQualifiedName.equals(implicitAliases.get(name))) { importedNames.add(fullyQualifiedName); } } } else { throw new RuntimeException("Not expecting multi-valued cross references in these models"); } } else { throw new RuntimeException( "Expecting all cross references to be part of an assignment in these models"); } } return importedNames; }