media-cloud-sync / includes / sdk / s3 / GuzzleHttp / Promise / PromiseInterface.php

PromiseInterface.php in Media Cloud Sync 1.3.11, at includes/sdk/s3/GuzzleHttp/Promise/PromiseInterface.php

81 lines 2.8 KB

Raw Download Zip

1	<?php
2
3	declare (strict_types=1);
4	namespace Dudlewebs\WPMCS\s3\GuzzleHttp\Promise;
5
6	/**
7	* A promise represents the eventual result of an asynchronous operation.
8	*
9	* The primary way of interacting with a promise is through its then method,
10	* which registers callbacks to receive either a promise’s eventual value or
11	* the reason why the promise cannot be fulfilled.
12	*
13	* @see https://promisesaplus.com/
14	*/
15	interface PromiseInterface
16	{
17	public const PENDING = 'pending';
18	public const FULFILLED = 'fulfilled';
19	public const REJECTED = 'rejected';
20	/**
21	* Appends fulfillment and rejection handlers to the promise, and returns
22	* a new promise resolving to the return value of the called handler.
23	*
24	* @param callable $onFulfilled Invoked when the promise fulfills.
25	* @param callable $onRejected Invoked when the promise is rejected.
26	*/
27	public function then(?callable $onFulfilled = null, ?callable $onRejected = null) : PromiseInterface;
28	/**
29	* Appends a rejection handler callback to the promise, and returns a new
30	* promise resolving to the return value of the callback if it is called,
31	* or to its original fulfillment value if the promise is instead
32	* fulfilled.
33	*
34	* @param callable $onRejected Invoked when the promise is rejected.
35	*/
36	public function otherwise(callable $onRejected) : PromiseInterface;
37	/**
38	* Get the state of the promise ("pending", "rejected", or "fulfilled").
39	*
40	* The three states can be checked against the constants defined on
41	* PromiseInterface: PENDING, FULFILLED, and REJECTED.
42	*/
43	public function getState() : string;
44	/**
45	* Resolve the promise with the given value.
46	*
47	* @param mixed $value
48	*
49	* @throws \RuntimeException if the promise is already resolved.
50	*/
51	public function resolve($value) : void;
52	/**
53	* Reject the promise with the given reason.
54	*
55	* @param mixed $reason
56	*
57	* @throws \RuntimeException if the promise is already resolved.
58	*/
59	public function reject($reason) : void;
60	/**
61	* Cancels the promise if possible.
62	*
63	* @see https://github.com/promises-aplus/cancellation-spec/issues/7
64	*/
65	public function cancel() : void;
66	/**
67	* Waits until the promise completes if possible.
68	*
69	* Pass $unwrap as true to unwrap the result of the promise, either
70	* returning the resolved value or throwing the rejected exception.
71	*
72	* If the promise cannot be waited on, then the promise will be rejected.
73	*
74	* @return mixed
75	*
76	* @throws \LogicException if the promise has no wait function or if the
77	* promise does not settle after waiting.
78	*/
79	public function wait(bool $unwrap = \true);
80	}
81