in log4j-api-scala_3/src/main/scala/org/apache/logging/log4j/scala/LoggerMacro.scala [461:472]
private def logMessageArgsThrowable(underlying: Expr[Logger], level: Expr[Level], message: Expr[CharSequence],
args: Expr[Seq[Any]], throwable: Expr[Throwable]) (using Quotes) = {
val anyRefArgs = formatArgs(args)
if(anyRefArgs.isEmpty)
'{ if ($underlying.delegate.isEnabled($level)) $underlying.logMessage($level, null, $message.toString, $throwable) }
else if(anyRefArgs.length == 1)
'{ if ($underlying.delegate.isEnabled($level)) $underlying.delegate.log($level, $message.toString, ${anyRefArgs.head}, $throwable) }
else {
val extendedArgs = anyRefArgs :+ throwable
'{ if ($underlying.delegate.isEnabled($level)) $underlying.delegate.log($level, $message.toString, ${Expr.ofSeq(extendedArgs)}*) }
}
}