Package net.hydromatic.morel.util

Class Tracers

java.lang.Object

net.hydromatic.morel.util.Tracers

public class Tracers
extends Object

Implementations of Unifier.Tracer.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	Tracers.NullTracer	Implementation of Unifier.Tracer that does nothing.
private static class	Tracers.PrintTracer	Implementation of Unifier.Tracer that writes to a given PrintWriter.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Tracers.NullTracer	NULL_TRACER

Constructor Summary

Constructors

Modifier	Constructor	Description
private	Tracers()

Method Summary

Modifier and Type	Method	Description
static Unifier.Tracer	nullTracer()	Returns a tracer that does nothing.
static Unifier.Tracer	printTracer(OutputStream stream)	Returns a tracer that writes debugging messages to a stream.
static Unifier.Tracer	printTracer(PrintWriter w)	Returns a tracer that writes debugging messages to a writer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NULL_TRACER

private static final Tracers.NullTracer NULL_TRACER

Constructor Details

Tracers

private Tracers()

Method Details

nullTracer

public static Unifier.Tracer nullTracer()

Returns a tracer that does nothing.

printTracer

public static Unifier.Tracer printTracer(PrintWriter w)

Returns a tracer that writes debugging messages to a writer.

printTracer

public static Unifier.Tracer printTracer(OutputStream stream)

Returns a tracer that writes debugging messages to a stream.