Method toString

src/main/java/com/google/gson/JsonPrimitive.java:300–309

(Appendable sb, Escaper escaper)

  }

  @Override
  protected void toString(Appendable sb, Escaper escaper) throws IOException {
    if (isString()) {
      sb.append('"');
      sb.append(escaper.escapeJsonString(value.toString()));
      sb.append('"');
    } else {
      sb.append(value.toString());
    }
  }

  private static boolean isPrimitiveOrString(Object target) {
    if (target instanceof String) {