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FqsenResolver.php
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FqsenResolver.php
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<?php
declare(strict_types=1);
/**
* 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.
*
* @link http://phpdoc.org
*/
namespace phpDocumentor\Reflection;
use InvalidArgumentException;
use phpDocumentor\Reflection\Types\Context;
use function explode;
use function implode;
use function strpos;
/**
* Resolver for Fqsen using Context information
*
* @psalm-immutable
*/
class FqsenResolver
{
/** @var string Definition of the NAMESPACE operator in PHP */
private const OPERATOR_NAMESPACE = '\\';
public function resolve(string $fqsen, ?Context $context = null): Fqsen
{
if ($context === null) {
$context = new Context('');
}
if ($this->isFqsen($fqsen)) {
return new Fqsen($fqsen);
}
return $this->resolvePartialStructuralElementName($fqsen, $context);
}
/**
* Tests whether the given type is a Fully Qualified Structural Element Name.
*/
private function isFqsen(string $type): bool
{
return strpos($type, self::OPERATOR_NAMESPACE) === 0;
}
/**
* Resolves a partial Structural Element Name (i.e. `Reflection\DocBlock`) to its FQSEN representation
* (i.e. `\phpDocumentor\Reflection\DocBlock`) based on the Namespace and aliases mentioned in the Context.
*
* @throws InvalidArgumentException When type is not a valid FQSEN.
*/
private function resolvePartialStructuralElementName(string $type, Context $context): Fqsen
{
$typeParts = explode(self::OPERATOR_NAMESPACE, $type, 2);
$namespaceAliases = $context->getNamespaceAliases();
// if the first segment is not an alias; prepend namespace name and return
if (!isset($namespaceAliases[$typeParts[0]])) {
$namespace = $context->getNamespace();
if ($namespace !== '') {
$namespace .= self::OPERATOR_NAMESPACE;
}
return new Fqsen(self::OPERATOR_NAMESPACE . $namespace . $type);
}
$typeParts[0] = $namespaceAliases[$typeParts[0]];
return new Fqsen(self::OPERATOR_NAMESPACE . implode(self::OPERATOR_NAMESPACE, $typeParts));
}
}

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text/x-php
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Sat, Oct 3, 06:30 (2 w, 3 d ago)
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48/f9/de2a04fe74ae9b7fe0173cc08e27
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FqsenResolver.php (2 KB)

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