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/**
* Copyright 2013-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
*
*/
'use strict';
var _assign = require('object-assign');
var lowPriorityWarning = require('./lowPriorityWarning');
/**
* This will log a single deprecation notice per function and forward the call
* on to the new API.
*
* @param {string} fnName The name of the function
* @param {string} newModule The module that fn will exist in
* @param {string} newPackage The module that fn will exist in
* @param {*} ctx The context this forwarded call should run in
* @param {function} fn The function to forward on to
* @return {function} The function that will warn once and then call fn
*/
function deprecated(fnName, newModule, newPackage, ctx, fn) {
var warned = false;
if (process.env.NODE_ENV !== 'production') {
var newFn = function () {
lowPriorityWarning(warned,
/* eslint-disable no-useless-concat */
// Require examples in this string must be split to prevent React's
// build tools from mistaking them for real requires.
// Otherwise the build tools will attempt to build a '%s' module.
'React.%s is deprecated. Please use %s.%s from require' + "('%s') " + 'instead.', fnName, newModule, fnName, newPackage);
/* eslint-enable no-useless-concat */
warned = true;
return fn.apply(ctx, arguments);
};
// We need to make sure all properties of the original fn are copied over.
// In particular, this is needed to support PropTypes
_assign(newFn, fn);
// Flow is not smart enough to figure out that newFn is of the same type as
// fn. Since we don't want to lose out the type of the function, casting
// to any and force flow to use T.
return newFn;
}
return fn;
}
module.exports = deprecated;
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