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33 lines
889 B
PHP
33 lines
889 B
PHP
<?php
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namespace Amp;
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/**
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* A pipeline is an asynchronous set of ordered values.
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*
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* @template-covariant TValue
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*/
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interface Pipeline extends \Traversable
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{
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/**
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* Returns the emitted value if the pipeline has emitted a value or null if the pipeline has completed.
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* If the pipeline fails, the exception will be thrown from this method.
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*
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* This method exists primarily for async consumption using Amp\async(fn() => $pipeline->continue()).
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*
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* @return mixed Returns null if the pipeline has completed.
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*
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* @psalm-return TValue|null
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*
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* @throws \Throwable The exception used to fail the pipeline.
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*/
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public function continue(): mixed;
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/**
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* Disposes of the pipeline, indicating the consumer is no longer interested in the pipeline output.
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*
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* @return void
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*/
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public function dispose(): void;
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}
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