我正在尝试使用scala反射查找重载方法。这是我的密码
import scala.reflect.runtime.universe._
object Example {
class Something {
def printIt(s1: String,s2: String) {println(s1 + s2) }
def printIt(s: Int) { println(s) }
def printIt(s: String) {println(s) }
def printInt(i: Int) { println(i) }
def printInt(i: String) { println(i) }
}
def main(args: Array[String]): Unit = {
val r = new Something()
val mirror = runtimeMirror(getClass.getClassLoader)
val instanceMirror = mirror.reflect(r)
val symbols = mirror.typeOf[r.type].decl(TermName("printInt")).asMethod
}
}
当我执行代码时,得到以下异常。
Exception in thread "main" scala.ScalaReflectionException: value printInt encapsulates multiple overloaded alternatives and cannot be treated as a method. Consider invoking `<offending symbol>.asTerm.alternatives` and manually picking the required method
通过遵循异常本身给出的建议,我可以通过迭代方法替换来找到重载的方法。但是,是否有任何方法可以使用该方法采用的参数类型来查找该方法?
