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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\NodeVisitor\Resolver; |
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use Humbug\PhpScoper\NodeVisitor\AppendParentNode; |
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use Humbug\PhpScoper\NodeVisitor\Collection\NamespaceStmtCollection; |
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use Humbug\PhpScoper\NodeVisitor\Collection\UseStmtCollection; |
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use PhpParser\Node\Expr\ConstFetch; |
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use PhpParser\Node\Expr\FuncCall; |
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use PhpParser\Node\Name; |
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use PhpParser\Node\Name\FullyQualified; |
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/** |
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* Attempts to resolve the node name into a fully qualified node. Returns a valid (non fully-qualified) name node on |
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* failure. |
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*/ |
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final class FullyQualifiedNameResolver |
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{ |
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private $namespaceStatements; |
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private $useStatements; |
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public function __construct(NamespaceStmtCollection $namespaceStatements, UseStmtCollection $useStatements) |
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{ |
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$this->namespaceStatements = $namespaceStatements; |
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$this->useStatements = $useStatements; |
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} |
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public function resolveName(Name $node): ResolvedValue |
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{ |
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if ($node instanceof FullyQualified) { |
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return new ResolvedValue($node, null, null); |
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} |
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$namespaceName = $this->namespaceStatements->findNamespaceForNode($node); |
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$useName = $this->useStatements->findStatementForNode($namespaceName, $node); |
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return new ResolvedValue( |
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$this->resolveNodeName($node, $namespaceName, $useName), |
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$namespaceName, |
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$useName |
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); |
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} |
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private function resolveNodeName(Name $name, ?Name $namespace, ?Name $use): Name |
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{ |
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if (null !== $use) { |
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return FullyQualified::concat($use, $name->slice(1), $name->getAttributes()); |
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} |
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if (null === $namespace) { |
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return new FullyQualified($name, $name->getAttributes()); |
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} |
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$parentNode = AppendParentNode::getParent($name); |
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if ( |
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($parentNode instanceof ConstFetch || $parentNode instanceof FuncCall) |
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&& count($name->parts) === 1 |
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) { |
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// Ambiguous name, cannot determine the FQ name |
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return $name; |
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} |
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return FullyQualified::concat($namespace, $name, $name->getAttributes()); |
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} |
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} |
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humbug /
php-scoper
