// Copyright 2011 The Go Authors.  All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

// Control over logging from the XMPP library.

package xmpp

var (

	// If any of these are non-nil when NewClient() is called,

	// they will be used to log messages of the indicated

	// severity.

	Warn Logger = &noLog{}

	Info Logger = &noLog{}

	Debug Logger = &noLog{}

)

// Anything implementing Logger can receive log messages from the XMPP

// library. The default implementation doesn't log anything; it

// efficiently discards all messages.

type Logger interface {

	Log(v ...interface{})

	Logf(fmt string, v ...interface{})

}

type noLog struct {

	flags  int

	prefix string

}

var _ Logger = &noLog{}

func (l *noLog) Log(v ...interface{}) {

}

func (l *noLog) Logf(fmt string, v ...interface{}) {

}