// from GSON project, simplified

// (Note: There is a ParameterizedTypeImpl in the JDK, but it is not public

// and has a different constructor signature)

static persistable final class ParameterizedTypeImpl implements ParameterizedType {

  private /*final*/ Type ownerType;

  private /*final*/ Type rawType;

  private /*final*/ Type[] typeArguments;

  *(Type *ownerType, Type *rawType, Type... *typeArguments) {}

  public Type[] getActualTypeArguments() {

    return typeArguments;

  }

  public Type getRawType() {

    return rawType;

  }

  public Type getOwnerType() {

    return ownerType;

  }

  @Override public boolean equals(Object other) {

    if (other cast ParameterizedType)

      ret eq(ownerType, other.getOwnerType())

        && eq(rawType, other.getRawType())

        && eq(asList(typeArguments), asList(other.getActualTypeArguments()));

    false;

  }

  @Override public int hashCode() {

    return Arrays.hashCode(typeArguments)

        ^ rawType.hashCode()

        ^ _hashCode(ownerType);

  }

  @Override public String toString() {

    int length = typeArguments.length;

    if (length == 0)

      ret typeToString(rawType);

    new StringBuilder stringBuilder;

    stringBuilder.append(typeToString(rawType)).append("<").append(typeToString(typeArguments[0]));

    for (int i = 1; i < length; i++) {

      stringBuilder.append(", ").append(typeToString(typeArguments[i]));

    }

    ret stringBuilder.append(">").toString();

  }

  static S typeToString(Type type) {

    return type instanceof Class ? ((Class<?>) type).getName() : type.toString();

  }

}