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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the humbug/php-scoper package. |
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* |
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* Copyright (c) 2017 Théo FIDRY <[email protected]>, |
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* Pádraic Brady <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Humbug\PhpScoper\PhpParser\NodeVisitor\NamespaceStmt; |
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use ArrayIterator; |
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use Countable; |
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use Humbug\PhpScoper\PhpParser\NodeVisitor\ParentNodeAppender; |
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use IteratorAggregate; |
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use PhpParser\Node; |
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use PhpParser\Node\Name; |
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use PhpParser\Node\Stmt\Namespace_; |
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use Traversable; |
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use function count; |
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use function end; |
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/** |
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* Utility class collecting all the namespaces for the scoped files allowing to easily find the namespace to which |
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* belongs a node. |
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* |
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* @private |
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*/ |
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final class NamespaceStmtCollection implements IteratorAggregate, Countable |
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{ |
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/** |
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* @var Namespace_[] |
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*/ |
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private array $nodes = []; |
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/** |
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* @var (Name|null)[] Associative array with the potentially prefixed namespace names as keys and their original name |
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* as value. |
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*/ |
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private array $mapping = []; |
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/** |
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* @param Namespace_ $namespace New namespace, may have been prefixed. |
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*/ |
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public function add(Namespace_ $namespace): void |
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{ |
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$this->nodes[] = $namespace; |
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$this->mapping[(string) $namespace->name] = NamespaceManipulator::getOriginalName($namespace); |
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} |
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public function findNamespaceForNode(Node $node): ?Name |
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{ |
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if (0 === count($this->nodes)) { |
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return null; |
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} |
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// Shortcut if there is only one namespace |
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if (1 === count($this->nodes)) { |
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return NamespaceManipulator::getOriginalName($this->nodes[0]); |
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} |
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return $this->getNodeNamespaceName($node); |
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} |
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public function getCurrentNamespaceName(): ?Name |
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{ |
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$lastNode = end($this->nodes); |
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return false === $lastNode ? null : NamespaceManipulator::getOriginalName($lastNode); |
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} |
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public function count(): int |
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{ |
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return count($this->nodes); |
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} |
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private function getNodeNamespaceName(Node $node): ?Name |
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{ |
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if (!ParentNodeAppender::hasParent($node)) { |
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throw new InvalidArgumentException('Unexpected case. Please report it.'); |
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//return null; |
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} |
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$parentNode = ParentNodeAppender::getParent($node); |
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if ($parentNode instanceof Namespace_) { |
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return $this->mapping[(string) $parentNode->name]; |
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} |
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return $this->getNodeNamespaceName($parentNode); |
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} |
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public function getIterator(): Traversable |
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{ |
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return new ArrayIterator($this->nodes); |
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} |
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} |
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humbug /
php-scoper
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