// fills collections with of imported languages and devkits.
// Languages include directly imported and coming immediately through devkits; listed devkits are
// imported directly, without those they extend (why?).
public LangAndDevkits collectLanguagesAndDevkits() {
Set<SLanguage> usedLanguages = new LinkedHashSet<>();
Set<SModuleReference> devkits = new LinkedHashSet<>();
// perhaps, shall introduce ModuleImports similar to ModelImports to accomplish this?
for (SModel m : getModels()) {
final SModelInternal modelInternal = (SModelInternal) m;
usedLanguages.addAll(modelInternal.importedLanguageIds());
devkits.addAll(modelInternal.importedDevkits());
}
// XXX why don't we respect extended devkits here?
final SRepository repository = getRepository();
if (repository != null) {
for (SModuleReference devkitRef : devkits) {
final SModule module = devkitRef.resolve(repository);
if (module instanceof DevKit) {
for (SLanguage l : ((DevKit) module).getAllExportedLanguageIds()) {
usedLanguages.add(l);
}
}
}
}
usedLanguages.add(BootstrapLanguages.getLangCore());
return new LangAndDevkits(usedLanguages, devkits);
}
