Is it possible to use XML syntax to create instance of a class by Scala macro?

Scala has powerful macro support, but I've never used that. I just wondering is it possible: use XML synctax to create instance of a class by Scala macro?

Say I have defined a class:

class User(name:String, age:Int)

Then I want to initialise it this way:

val user = macroHere(<User name="Freewind" age={100} />)

Is it possible?