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symfony/src/Symfony/Component/Process/InputStream.php
Nicolas Grekas 6108a212ad minor #25585 Add type string to docblock for Process::setInput() (icanhazstring)
This PR was submitted for the 3.4 branch but it was squashed and merged into the 3.3 branch instead (closes #25585).

Discussion
----------

Add type string to docblock for Process::setInput()

| Q             | A
| ------------- | ---
| Branch?       | 3.4
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | none
| License       | MIT
| Doc PR        | none

Add `string` as valid `$input` for `Process::setInput()`. Since `getInput()` will also return as string and the internal method `ProcessUtils::validateInput()` will accept a string, this should be a viable input type.

Commits
-------

e3de68f2 Add type string to docblock for Process::setInput()
2018-01-07 10:28:20 +01:00

93 lines
2.3 KiB
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>
*/
class InputStream implements \IteratorAggregate
{
/** @var null|callable */
private $onEmpty = null;
private $input = array();
private $open = true;
/**
* Sets a callback that is called when the write buffer becomes empty.
*/
public function onEmpty(callable $onEmpty = null)
{
$this->onEmpty = $onEmpty;
}
/**
* Appends an input to the write buffer.
*
* @param resource|string|int|float|bool|\Traversable|null The input to append as scalar,
* stream resource or \Traversable
*/
public function write($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.
*/
public function close()
{
$this->open = false;
}
/**
* Tells whether the write buffer is closed or not.
*/
public function isClosed()
{
return !$this->open;
}
public function getIterator()
{
$this->open = true;
while ($this->open || $this->input) {
if (!$this->input) {
yield '';
continue;
}
$current = array_shift($this->input);
if ($current instanceof \Iterator) {
foreach ($current as $cur) {
yield $cur;
}
} else {
yield $current;
}
if (!$this->input && $this->open && null !== $onEmpty = $this->onEmpty) {
$this->write($onEmpty($this));
}
}
}
}