@Override
    public FlyweightCapableTreeStructure<LighterASTNode> parseContentsLight(ASTNode chameleon) {
      PsiElement psi = chameleon.getPsi();
      assert psi != null : "Bad chameleon: " + chameleon;

      Project project = psi.getProject();
      PsiBuilderFactory factory = PsiBuilderFactory.getInstance();
      PsiBuilder builder = factory.createBuilder(project, chameleon);
      ParserDefinition parserDefinition = LanguageParserDefinitions.INSTANCE.forLanguage(getLanguage());
      assert parserDefinition != null : this;
      PropertiesParser parser = new PropertiesParser();
      return parser.parseLight(this, builder);
    }
@Override
    public FlyweightCapableTreeStructure<LighterASTNode> parseContentsLight(ASTNode chameleon)