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<?php
/**
* This file is part of phpDocumentor.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright 2010-2015 Mike van Riel<mike@phpdoc.org>
* @license http://www.opensource.org/licenses/mit-license.php MIT
* @link http://phpdoc.org
*/
namespace phpDocumentor\Reflection\DocBlock\Tags;
use phpDocumentor\Reflection\DocBlock\Description;
use phpDocumentor\Reflection\DocBlock\DescriptionFactory;
use phpDocumentor\Reflection\Type;
use phpDocumentor\Reflection\TypeResolver;
use phpDocumentor\Reflection\Types\Context as TypeContext;
use Webmozart\Assert\Assert;
/**
* Reflection class for the {@}param tag in a Docblock.
*/
final class Param extends BaseTag implements Factory\StaticMethod
{
/** @var string */
protected $name = 'param';
/** @var Type */
private $type;
/** @var string */
private $variableName = '';
/** @var bool determines whether this is a variadic argument */
private $isVariadic = false;
/**
* @param string $variableName
* @param Type $type
* @param bool $isVariadic
* @param Description $description
*/
public function __construct($variableName, Type $type = null, $isVariadic = false, Description $description = null)
{
Assert::string($variableName);
Assert::boolean($isVariadic);
$this->variableName = $variableName;
$this->type = $type;
$this->isVariadic = $isVariadic;
$this->description = $description;
}
/**
* {@inheritdoc}
*/
public static function create(
$body,
TypeResolver $typeResolver = null,
DescriptionFactory $descriptionFactory = null,
TypeContext $context = null
) {
Assert::stringNotEmpty($body);
Assert::allNotNull([$typeResolver, $descriptionFactory]);
$parts = preg_split('/(\s+)/Su', $body, 3, PREG_SPLIT_DELIM_CAPTURE);
$type = null;
$variableName = '';
$isVariadic = false;
// if the first item that is encountered is not a variable; it is a type
if (isset($parts[0]) && (strlen($parts[0]) > 0) && ($parts[0][0] !== '$')) {
$type = $typeResolver->resolve(array_shift($parts), $context);
array_shift($parts);
}
// if the next item starts with a $ or ...$ it must be the variable name
if (isset($parts[0]) && (strlen($parts[0]) > 0) && ($parts[0][0] === '$' || substr($parts[0], 0, 4) === '...$')) {
$variableName = array_shift($parts);
array_shift($parts);
if (substr($variableName, 0, 3) === '...') {
$isVariadic = true;
$variableName = substr($variableName, 3);
}
if (substr($variableName, 0, 1) === '$') {
$variableName = substr($variableName, 1);
}
}
$description = $descriptionFactory->create(implode('', $parts), $context);
return new static($variableName, $type, $isVariadic, $description);
}
/**
* Returns the variable's name.
*
* @return string
*/
public function getVariableName()
{
return $this->variableName;
}
/**
* Returns the variable's type or null if unknown.
*
* @return Type|null
*/
public function getType()
{
return $this->type;
}
/**
* Returns whether this tag is variadic.
*
* @return boolean
*/
public function isVariadic()
{
return $this->isVariadic;
}
/**
* Returns a string representation for this tag.
*
* @return string
*/
public function __toString()
{
return ($this->type ? $this->type . ' ' : '')
. ($this->isVariadic() ? '...' : '')
. '$' . $this->variableName
. ($this->description ? ' ' . $this->description : '');
}
}
|
