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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; |
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use Humbug\PhpScoper\PhpParser\Node\ClassAliasFuncCall; |
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use Humbug\PhpScoper\PhpParser\Node\FullyQualifiedFactory; |
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use Humbug\PhpScoper\PhpParser\NodeVisitor\Resolver\IdentifierResolver; |
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use Humbug\PhpScoper\Whitelist; |
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use PhpParser\Node; |
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use PhpParser\Node\Name\FullyQualified; |
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use PhpParser\Node\Stmt; |
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use PhpParser\Node\Stmt\Class_; |
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use PhpParser\Node\Stmt\Expression; |
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use PhpParser\Node\Stmt\Interface_; |
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use PhpParser\Node\Stmt\Namespace_; |
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use PhpParser\NodeVisitorAbstract; |
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use UnexpectedValueException; |
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use function array_reduce; |
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/** |
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* Appends a `class_alias` statement to the exposed classes. |
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* |
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* ``` |
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* namespace A; |
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* |
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* class Foo |
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* { |
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* } |
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* ``` |
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* |
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* => |
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* |
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* ``` |
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* namespace Humbug\A; |
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* |
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* class Foo |
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* { |
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* } |
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* |
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* class_alias('Humbug\A\Foo', 'A\Foo', false); |
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* ``` |
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* |
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* @internal |
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*/ |
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final class ClassAliasStmtAppender extends NodeVisitorAbstract |
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{ |
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private string $prefix; |
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private Whitelist $whitelist; |
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private IdentifierResolver $identifierResolver; |
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public function __construct( |
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string $prefix, |
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Whitelist $whitelist, |
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IdentifierResolver $identifierResolver |
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) { |
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$this->prefix = $prefix; |
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$this->whitelist = $whitelist; |
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$this->identifierResolver = $identifierResolver; |
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} |
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public function afterTraverse(array $nodes): array |
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{ |
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$newNodes = []; |
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foreach ($nodes as $node) { |
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if ($node instanceof Namespace_) { |
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$node = $this->appendToNamespaceStmt($node); |
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} |
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$newNodes[] = $node; |
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} |
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return $newNodes; |
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} |
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private function appendToNamespaceStmt(Namespace_ $namespace): Namespace_ |
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{ |
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$namespace->stmts = array_reduce( |
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$namespace->stmts, |
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fn (array $stmts, Stmt $stmt) => $this->createNamespaceStmts($stmts, $stmt), |
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[], |
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); |
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return $namespace; |
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} |
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/** |
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* @param Stmt[] $stmts |
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* |
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* @return Stmt[] |
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*/ |
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private function createNamespaceStmts(array $stmts, Stmt $stmt): array |
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{ |
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$stmts[] = $stmt; |
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$isClassOrInterface = $stmt instanceof Class_ || $stmt instanceof Interface_; |
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if (!$isClassOrInterface) { |
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return $stmts; |
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} |
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$name = $stmt->name; |
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if (null === $name) { |
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throw new UnexpectedValueException('Expected the class/interface statement to have a name but none found'); |
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} |
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$resolvedName = $this->identifierResolver->resolveIdentifier($name); |
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if ($resolvedName instanceof FullyQualified |
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&& $this->isExposedClass((string) $resolvedName) |
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) { |
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$stmts[] = self::createAliasStmt($resolvedName, $stmt, $this->prefix); |
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} |
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return $stmts; |
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} |
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private function isExposedClass(string $resolvedName): bool |
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{ |
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return !$this->whitelist->belongsToExcludedNamespace($resolvedName) |
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&& ( |
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$this->whitelist->isExposedClassFromGlobalNamespace($resolvedName) |
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|| $this->whitelist->isSymbolExposed($resolvedName) |
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); |
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} |
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private static function createAliasStmt( |
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FullyQualified $originalName, |
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Node $stmt, |
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string $prefix |
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): Expression |
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{ |
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$call = new ClassAliasFuncCall( |
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FullyQualifiedFactory::concat($prefix, $originalName), |
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$originalName, |
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$stmt->getAttributes(), |
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); |
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$expression = new Expression( |
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$call, |
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$stmt->getAttributes(), |
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); |
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ParentNodeAppender::setParent($call, $expression); |
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return $expression; |
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} |
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} |
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humbug /
php-scoper
