Support for log helper methods showing the caller's line number?

[dlangdon]

Is there any way to do something like this?

Reference:

http://stackoverflow.com/questions/1486233/java-logging-show-the-source-line-number-of-the-caller-not-the-logging-helper

Example use case:

  case class ExtendedTry[T](t: Try[T]) {

    /** Logs a custom message in case of a failure of a given type, as a warning.
      * @param message The custom message to be logged.
      * @param log The logger instance is received implicitly or explicitly, such that it corresponds to the caller class.
      * @tparam E The type of exception to be matched against.
      * @return The same Try[T] instance, allowing it to chain operations.
      */
    def logFailure[E <: Throwable : ClassTag](message: String, withTrace: Boolean = false)(implicit log: Logger)
    : Try[T] = {
      t.recover {
        case failure: E => {
            // Call here will print the file of the implicit Logger, but will print the line number in this file.
            if(withTrace) log.warn(failure)(message) else log.warn(s"$message : ${failure.getMessage}")
        }
      }
      t
    }
 }

[lefou]

Maybe, https://github.com/lihaoyi/sourcecode is a good candidate to provide such a feature. Notice, that sourcecode is also implemented by macros, thus it should not add to the runtime costs at all.