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Add react/promise v2 to v3 transition helper
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26
src/Discord/PromiseHelpers/CancellablePromiseInterface.php
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| <?php | ||
| /* | ||
| * This file is a part of the DiscordPHP-Http project. | ||
| * | ||
| * Copyright (c) 2021-present David Cole <[email protected]> | ||
| * | ||
| * This file is subject to the MIT license that is bundled | ||
| * with this source code in the LICENSE file. | ||
| */ | ||
|
|
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| namespace Discord\Http\PromiseHelpers; | ||
|
|
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| /** | ||
| * A transition helper from react/promise v2 to react/promise v3. | ||
| * Please do not use this polyfill class in place of real CancellablePromiseInterface. | ||
| * | ||
| * @see \React\Promise\CancellablePromiseInterface | ||
| * | ||
| * @internal Used internally for DiscordPHP v10 | ||
| * | ||
| * @since 10.4.0 | ||
| */ | ||
| interface CancellablePromiseInterface | ||
| { | ||
| public function cancel(); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| <?php | ||
|
|
||
| /* | ||
| * This file is a part of the DiscordPHP-Http project. | ||
| * | ||
| * Copyright (c) 2021-present David Cole <[email protected]> | ||
| * | ||
| * This file is subject to the MIT license that is bundled | ||
| * with this source code in the LICENSE file. | ||
| */ | ||
|
|
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| namespace Discord\Http\PromiseHelpers; | ||
|
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| use React\Promise\Deferred as ReactDeferred; | ||
| use React\Promise\PromiseInterface; | ||
|
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| /** | ||
| * A transition helper from react/promise v2 to react/promise v3. | ||
| * Please do not use this polyfill class in place of real Deferred. | ||
| * | ||
| * @see \React\Promise\Deferred | ||
| * | ||
| * @internal Used internally for DiscordPHP v10 | ||
| * | ||
| * @since 10.4.0 | ||
| */ | ||
| final class Deferred implements PromisorInterface | ||
| { | ||
| /** | ||
| * The actual Promisor | ||
| */ | ||
| public ReactDeferred $deferred; | ||
|
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| /** | ||
| * Determine the installed package is Promise-v3 | ||
| */ | ||
| public static bool $isPromiseV3 = false; | ||
|
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| /** | ||
| * @var PolyFillPromiseInterface|PolyFillPromiseInterface | ||
| */ | ||
| private $promise; | ||
|
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| /** | ||
| * @param callable|ReactDeferred $canceller Canceller callback or a Deferred to use | ||
| * | ||
| * @throws \InvalidArgumentException $canceller is not null or callable or a Deferred | ||
| */ | ||
| public function __construct($canceller = null) | ||
| { | ||
| if ($canceller instanceof ReactDeferred) { | ||
| $this->deferred = $canceller; | ||
| } elseif (null === $canceller || is_callable($canceller)) { | ||
| $this->deferred = new ReactDeferred($canceller); | ||
| } else { | ||
| throw new \InvalidArgumentException('$canceller must be either null or callable or Deferred'); | ||
| } | ||
| } | ||
|
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| /** | ||
| * @return PolyFillPromiseInterface|PromiseInterface|\React\Promise\ExtendedPromiseInterface | ||
| */ | ||
| public function promise() | ||
| { | ||
| if (!static::$isPromiseV3) { | ||
| // Just use the same react/promise v2 promise | ||
| return $this->deferred->promise(); | ||
| } | ||
|
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| if (null === $this->promise) { | ||
| // Wrap with the polyfill if user installed react/promise v3 | ||
| $this->promise = new PolyFillPromiseInterface($this->deferred->promise()); | ||
| } | ||
|
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| return $this->promise; | ||
| } | ||
|
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| /** | ||
| * @see React\Promise\Deferred::resolve() | ||
| * | ||
| * @return void | ||
| */ | ||
| public function resolve($value = null) | ||
| { | ||
| $this->deferred->resolve($value); | ||
| } | ||
|
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| /** | ||
| * @see React\Promise\Deferred::reject() | ||
| * | ||
| * @param \Throwable $reason required in Promise-v3, will be resolved if not a throwable | ||
| * | ||
| * @throws \InvalidArgumentException $reason is null & react/promise is v3 | ||
| * | ||
| * @return void | ||
| */ | ||
| public function reject($reason = null) | ||
| { | ||
| if (static::$isPromiseV3) { | ||
| if (null === $reason) { | ||
| $reason = new \InvalidArgumentException('reject($reason) must not be null'); | ||
| } elseif (!($reason instanceof \Throwable)) { | ||
| return $this->deferred->resolve($reason); | ||
| } | ||
| } | ||
|
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| $this->deferred->reject($reason); | ||
| } | ||
|
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| /** | ||
| * Not supported | ||
| * | ||
| * @deprecated | ||
| */ | ||
| public function notify($update = null) | ||
| { | ||
| if (method_exists($this->deferred, 'notify')) { | ||
| $this->deferred->notify($update); | ||
| return; | ||
| } | ||
|
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| throw new \BadMethodCallException('notify() is not supported with this polyfill and react/promise v3'); | ||
| } | ||
|
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| /** | ||
| * Not supported | ||
| * | ||
| * @deprecated | ||
| */ | ||
| public function progress($update = null) | ||
| { | ||
| if (method_exists($this->deferred, 'progress')) { | ||
| $this->deferred->progress($update); | ||
| return; | ||
| } | ||
|
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| throw new \BadMethodCallException('progress() is not supported with this polyfill and react/promise v3'); | ||
| } | ||
| } |
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