我正在尝试实现org.joda.time.ReadableInstant。它继承自通用接口,但显然这无关紧要。界面是:
public interface ReadableInstant extends Comparable<ReadableInstant> {
long getMillis();
Chronology getChronology();
DateTimeZone getZone();
int get(DateTimeFieldType type);
boolean isSupported(DateTimeFieldType field);
Instant toInstant();
boolean isEqual(ReadableInstant instant);
boolean isAfter(ReadableInstant instant);
boolean isBefore(ReadableInstant instant);
boolean equals(Object readableInstant);
int hashCode();
String toString();
}
我的记录:
(defrecord WeirdDate [year month day]
ReadableInstant
(^boolean equals [this ^Object readableInstant] (.equals (as-date this) readableInstant))
(^int get [this ^DateTimeFieldType type] (get (as-date this) type))
(^Chronology getChronology [this] (.getChronology (as-date this)))
(^long getMillis [this] (.getMillis (as-date this)))
(^DateTimeZone getZone [this] (.getZone (as-date this)))
(^int hashCode [this] (.hashCode (as-date this)))
(^boolean isAfter [this ^ReadableInstant instant] (.isAfter (as-date this) instant))
(^boolean isBefore [this ^ReadableInstant instant] (.isBefore (as-date this) instant))
(^boolean isEqual [this ^ReadableInstant instant] (.isEqual (as-date this) instant))
(^boolean isSupported [this ^DateTimeFieldType field] (.isSupported (as-date this) field))
(^Instant.toInstant [this] (.toInstant (as-date this)))
(^String toString [this] (.toString (as-date this))))
但我得到了错误:
java.lang.IllegalArgumentException: Must hint overloaded method: get
我的类型提示错了吗?还有什么问题吗?
(对于那些在Clojure 邮件列表上的人,我已经问过这个问题的较长版本,我认为这里的较短问题可能更容易回答)