53 lines
1.2 KiB
PHP
53 lines
1.2 KiB
PHP
<?php
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namespace Amp;
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use React\Promise\PromiseInterface as ReactPromise;
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/**
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* Creates a failed promise using the given exception.
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*
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* @template-covariant TValue
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* @template-implements Promise<TValue>
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*/
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final class Failure implements Promise
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{
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/** @var \Throwable $exception */
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private $exception;
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/**
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* @param \Throwable $exception Rejection reason.
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*/
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public function __construct(\Throwable $exception)
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{
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$this->exception = $exception;
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}
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/**
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* {@inheritdoc}
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*/
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public function onResolve(callable $onResolved)
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{
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try {
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/** @var mixed $result */
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$result = $onResolved($this->exception, null);
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if ($result === null) {
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return;
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}
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if ($result instanceof \Generator) {
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$result = new Coroutine($result);
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}
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if ($result instanceof Promise || $result instanceof ReactPromise) {
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Promise\rethrow($result);
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}
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} catch (\Throwable $exception) {
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Loop::defer(static function () use ($exception) {
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throw $exception;
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});
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}
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}
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}
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