/**

* Copyright 2014 Facebook, Inc.

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*

* @providesModule monitorCodeUse

*/

"use strict";

var invariant = require('invariant');

/**

* Provides open-source compatible instrumentation for monitoring certain API

* uses before we're ready to issue a warning or refactor. It accepts an event

* name which may only contain the characters [a-z0-9_] and an optional data

* object with further information.

*/

function monitorCodeUse(eventName, data) {

invariant(

eventName && !/[^a-z0-9_]/.test(eventName),

'You must provide an eventName using only the characters [a-z0-9_]'

);

}

module.exports = monitorCodeUse;