MappedList.java 文件源码

protected void addRemove(Change<? extends F> c) {
    int from = c.getFrom();
    int to = c.getTo();

    for (int index = from + c.getRemovedSize() - 1; index >= from; index--) {
        nextRemove(index, mappedValues.remove(index));
    }

    for (int index = from; index < from + c.getAddedSize(); index++) {
        mappedValues.add(index, mapper.apply(getSource().get(index)));

        nextAdd(index, index + 1);
    }
}