protected Collection<EPackage> getRegistryPackagesToValidate() {
Collection<EPackage> _xblockexpression = null;
{
final Collection<EPackage> packages = GrammarUtil.allEPackagesToValidate(this.grammar);
List<AbstractMetamodelDeclaration> _allMetamodelDeclarations =
GrammarUtil.allMetamodelDeclarations(this.grammar);
Iterable<GeneratedMetamodel> _filter =
Iterables.<GeneratedMetamodel>filter(_allMetamodelDeclarations, GeneratedMetamodel.class);
final Function1<GeneratedMetamodel, EPackage> _function =
(GeneratedMetamodel it) -> {
return it.getEPackage();
};
Iterable<EPackage> _map =
IterableExtensions.<GeneratedMetamodel, EPackage>map(_filter, _function);
List<EPackage> _list = IterableExtensions.<EPackage>toList(_map);
packages.removeAll(_list);
_xblockexpression = packages;
}
return _xblockexpression;
}
