如何扩展＆＃34; s＆＃34;字符串插值器

Question

我想创建一个新的字符串插值器宏，让我们称之为＆＃39; X＆＃39;，其功能类似于＆＃34; s＆＃34;当涉及到内插新值时。我传入内插器的字符串首先通过＆＃34; s＆＃34;然后由＆＃39; X＆＃39;对结果字符串进行后处理。最理想的是我喜欢在它击中宏之前要解析的字符串。这可能在编译时吗？我不希望宏知道任何引用的变量。

谢谢！

implicit class XInterp (val sc : StringContext) {
   def X(args: Any*): String = macro XMacro
}

def XMacro(c: Context)(args: c.Expr[Any]*): c.Expr[String] = {
   // args(0).tree == "Foo has a value of 5 and this is awesome!"?
}

val foo = 5
val bar = "this is awesome!"
val result = X"Foo has a value of $foo and $bar"
println(result)

"Foo has a value of 5 and this is awesome!"