从宏的Scala TypeTag获取Java类

Question

According to this question/answer Any way to obtain a Java class from a Scala (2.10) type tag or symbol?
I should use runtimeClass to obtain the Class from a type.

But if I do reflection in Macros I don't have access to runtimeClass . How can I do?

Answer 1

In macros, you can have a TypeTag for a class which isn't actually compiled yet and thus doesn't have a Class object, that's why there is no runtimeClass . If you want to try anyway (eg because you know the class is from a dependency, not being compiled), I don't know any way other than Class.forName , as in the question. Of course, you can use runtimeClass in the generated code.