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?? CHANGELOG.md(4.13 KB)
?? Exception
?? ExecutableFinder.php(3.44 KB)
?? InputStream.php(2.41 KB)
?? LICENSE(1.04 KB)
?? Messenger
?? PhpExecutableFinder.php(2.26 KB)
?? PhpProcess.php(2.39 KB)
?? PhpSubprocess.php(5.92 KB)
?? Pipes
?? Process.php(51.48 KB)
?? ProcessUtils.php(1.71 KB)
?? README.md(472 B)
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Editing: InputStream.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Process;

use Symfony\Component\Process\Exception\RuntimeException;

/**
 * Provides a way to continuously write to the input of a Process until the InputStream is closed.
 *
 * @author Nicolas Grekas <p@tchwork.com>
 *
 * @implements \IteratorAggregate<int, string>
 */
class InputStream implements \IteratorAggregate
{
    private ?\Closure $onEmpty = null;
    private array $input = [];
    private bool $open = true;

/**
     * Sets a callback that is called when the write buffer becomes empty.
     *
     * @return void
     */
    public function onEmpty(?callable $onEmpty = null)
    {
        $this->onEmpty = null !== $onEmpty ? $onEmpty(...) : null;
    }

/**
     * Appends an input to the write buffer.
     *
     * @param resource|string|int|float|bool|\Traversable|null $input The input to append as scalar,
     *                                                                stream resource or \Traversable
     *
     * @return void
     */
    public function write(mixed $input)
    {
        if (null === $input) {
            return;
        }
        if ($this->isClosed()) {
            throw new RuntimeException(\sprintf('"%s" is closed.', static::class));
        }
        $this->input[] = ProcessUtils::validateInput(__METHOD__, $input);
    }

/**
     * Closes the write buffer.
     *
     * @return void
     */
    public function close()
    {
        $this->open = false;
    }

/**
     * Tells whether the write buffer is closed or not.
     *
     * @return bool
     */
    public function isClosed()
    {
        return !$this->open;
    }

public function getIterator(): \Traversable
    {
        $this->open = true;

while ($this->open || $this->input) {
            if (!$this->input) {
                yield '';
                continue;
            }
            $current = array_shift($this->input);

if ($current instanceof \Iterator) {
                yield from $current;
            } else {
                yield $current;
            }
            if (!$this->input && $this->open && null !== $onEmpty = $this->onEmpty) {
                $this->write($onEmpty($this));
            }
        }
    }
}

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