depicter / modules / GuzzleHttp / Promise / Create.php

Create.php in Depicter — Popup & Slider Builder 1.3.3, at modules/GuzzleHttp/Promise/Create.php

85 lines 2.1 KB

Raw Download Zip

1	<?php
2
3	namespace Depicter\GuzzleHttp\Promise;
4
5	final class Create
6	{
7	/**
8	* Creates a promise for a value if the value is not a promise.
9	*
10	* @param mixed $value Promise or value.
11	*
12	* @return PromiseInterface
13	*/
14	public static function promiseFor($value)
15	{
16	if ($value instanceof PromiseInterface) {
17	return $value;
18	}
19
20	// Return a Guzzle promise that shadows the given promise.
21	if (is_object($value) && method_exists($value, 'then')) {
22	$wfn = method_exists($value, 'wait') ? [$value, 'wait'] : null;
23	$cfn = method_exists($value, 'cancel') ? [$value, 'cancel'] : null;
24	$promise = new Promise($wfn, $cfn);
25	$value->then([$promise, 'resolve'], [$promise, 'reject']);
26	return $promise;
27	}
28
29	return new FulfilledPromise($value);
30	}
31
32	/**
33	* Creates a rejected promise for a reason if the reason is not a promise.
34	* If the provided reason is a promise, then it is returned as-is.
35	*
36	* @param mixed $reason Promise or reason.
37	*
38	* @return PromiseInterface
39	*/
40	public static function rejectionFor($reason)
41	{
42	if ($reason instanceof PromiseInterface) {
43	return $reason;
44	}
45
46	return new RejectedPromise($reason);
47	}
48
49	/**
50	* Create an exception for a rejected promise value.
51	*
52	* @param mixed $reason
53	*
54	* @return \Exception\|\Throwable
55	*/
56	public static function exceptionFor($reason)
57	{
58	if ($reason instanceof \Exception \|\| $reason instanceof \Throwable) {
59	return $reason;
60	}
61
62	return new RejectionException($reason);
63	}
64
65	/**
66	* Returns an iterator for the given value.
67	*
68	* @param mixed $value
69	*
70	* @return \Iterator
71	*/
72	public static function iterFor($value)
73	{
74	if ($value instanceof \Iterator) {
75	return $value;
76	}
77
78	if (is_array($value)) {
79	return new \ArrayIterator($value);
80	}
81
82	return new \ArrayIterator([$value]);
83	}
84	}
85