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package scala.tools.nsc
package util
// todo: We should unify this with Tracer. I'd do it but Tracer is
// too complicated for me to understand quickly.
import java.io.PrintStream
/** A simple tracer
* @param out: The print stream where trace info should be sent
* @param enabled: A condition that must be true for trace info to be produced.
*/
class SimpleTracer(out: PrintStream, enabled: Boolean = true) {
def apply[T](msg: => String)(value: T): T = {
if (enabled) out.println(msg+value)
value
}
def when(enabled: Boolean): SimpleTracer = new SimpleTracer(out, enabled)
}
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