AggregateException.php
1 week ago
CancellationException.php
1 week ago
Coroutine.php
1 week ago
Create.php
1 week ago
Each.php
1 week ago
EachPromise.php
1 week ago
FulfilledPromise.php
1 week ago
Is.php
1 week ago
Promise.php
1 week ago
PromiseInterface.php
1 week ago
PromisorInterface.php
1 week ago
RejectedPromise.php
1 week ago
RejectionException.php
1 week ago
TaskQueue.php
1 week ago
TaskQueueInterface.php
1 week ago
Utils.php
1 week ago
Create.php
80 lines
| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace GuzzleHttp\Promise; |
| 6 | |
| 7 | final class Create |
| 8 | { |
| 9 | /** |
| 10 | * Creates a promise for a value if the value is not a promise. |
| 11 | * |
| 12 | * @param mixed $value Promise or value. |
| 13 | */ |
| 14 | public static function promiseFor($value): PromiseInterface |
| 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 | |
| 27 | return $promise; |
| 28 | } |
| 29 | |
| 30 | return new FulfilledPromise($value); |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Creates a rejected promise for a reason if the reason is not a promise. |
| 35 | * If the provided reason is a promise, then it is returned as-is. |
| 36 | * |
| 37 | * @param mixed $reason Promise or reason. |
| 38 | */ |
| 39 | public static function rejectionFor($reason): PromiseInterface |
| 40 | { |
| 41 | if ($reason instanceof PromiseInterface) { |
| 42 | return $reason; |
| 43 | } |
| 44 | |
| 45 | return new RejectedPromise($reason); |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Create an exception for a rejected promise value. |
| 50 | * |
| 51 | * @param mixed $reason |
| 52 | */ |
| 53 | public static function exceptionFor($reason): \Throwable |
| 54 | { |
| 55 | if ($reason instanceof \Throwable) { |
| 56 | return $reason; |
| 57 | } |
| 58 | |
| 59 | return new RejectionException($reason); |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * Returns an iterator for the given value. |
| 64 | * |
| 65 | * @param mixed $value |
| 66 | */ |
| 67 | public static function iterFor($value): \Iterator |
| 68 | { |
| 69 | if ($value instanceof \Iterator) { |
| 70 | return $value; |
| 71 | } |
| 72 | |
| 73 | if (is_array($value)) { |
| 74 | return new \ArrayIterator($value); |
| 75 | } |
| 76 | |
| 77 | return new \ArrayIterator([$value]); |
| 78 | } |
| 79 | } |
| 80 |