1import extend from './extend';
2import { hooks } from './hooks';
3import hasOwnProp from './has-own-prop';
4
5function warn(msg) {
6    if (
7        hooks.suppressDeprecationWarnings === false &&
8        typeof console !== 'undefined' &&
9        console.warn
10    ) {
11        console.warn('Deprecation warning: ' + msg);
12    }
13}
14
15export function deprecate(msg, fn) {
16    var firstTime = true;
17
18    return extend(function () {
19        if (hooks.deprecationHandler != null) {
20            hooks.deprecationHandler(null, msg);
21        }
22        if (firstTime) {
23            var args = [],
24                arg,
25                i,
26                key,
27                argLen = arguments.length;
28            for (i = 0; i < argLen; i++) {
29                arg = '';
30                if (typeof arguments[i] === 'object') {
31                    arg += '\n[' + i + '] ';
32                    for (key in arguments[0]) {
33                        if (hasOwnProp(arguments[0], key)) {
34                            arg += key + ': ' + arguments[0][key] + ', ';
35                        }
36                    }
37                    arg = arg.slice(0, -2); // Remove trailing comma and space
38                } else {
39                    arg = arguments[i];
40                }
41                args.push(arg);
42            }
43            warn(
44                msg +
45                    '\nArguments: ' +
46                    Array.prototype.slice.call(args).join('') +
47                    '\n' +
48                    new Error().stack
49            );
50            firstTime = false;
51        }
52        return fn.apply(this, arguments);
53    }, fn);
54}
55
56var deprecations = {};
57
58export function deprecateSimple(name, msg) {
59    if (hooks.deprecationHandler != null) {
60        hooks.deprecationHandler(name, msg);
61    }
62    if (!deprecations[name]) {
63        warn(msg);
64        deprecations[name] = true;
65    }
66}
67
68hooks.suppressDeprecationWarnings = false;
69hooks.deprecationHandler = null;