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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\NodeVisitor\Collection\NamespaceStmtCollection; |
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use Humbug\PhpScoper\Whitelist; |
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use PhpParser\Node; |
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use PhpParser\Node\Name; |
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use PhpParser\Node\Stmt\ClassLike; |
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use PhpParser\Node\Stmt\Namespace_; |
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use PhpParser\NodeVisitorAbstract; |
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use function Humbug\PhpScoper\clone_node; |
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/** |
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* Prefixes the relevant namespaces. |
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* |
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* ``` |
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* namespace 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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* namespace Humbug\Foo; |
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* ``` |
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* |
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* @private |
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*/ |
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final class NamespaceStmtPrefixer extends NodeVisitorAbstract |
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{ |
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private $prefix; |
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private $whitelist; |
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private $namespaceStatements; |
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public function __construct(string $prefix, Whitelist $whitelist, NamespaceStmtCollection $namespaceStatements) |
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{ |
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$this->prefix = $prefix; |
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$this->whitelist = $whitelist; |
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$this->namespaceStatements = $namespaceStatements; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function enterNode(Node $node): Node |
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{ |
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return ($node instanceof Namespace_) |
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? $this->prefixNamespaceStmt($node) |
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: $node |
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; |
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} |
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private function prefixNamespaceStmt(Namespace_ $namespace): Node |
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{ |
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$originalNamespace = $namespace; |
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if ($this->shouldPrefixStmt($namespace)) { |
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$originalNamespace = clone_node($namespace); |
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$namespace->name = Name::concat($this->prefix, $namespace->name); |
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} |
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$this->namespaceStatements->add($namespace, $originalNamespace); |
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return $namespace; |
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} |
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private function isWhitelistedNode(Node $node): bool |
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{ |
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if ($node instanceof ClassLike) { |
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return true; |
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} |
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// Check nodes in the global namespaces. |
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if ($node instanceof Namespace_ && null === $node->name) { |
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foreach ($node->stmts as $statement) { |
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if ($this->isWhitelistedNode($statement)) { |
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return true; |
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} |
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} |
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} |
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return false; |
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} |
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private function shouldPrefixStmt(Namespace_ $namespace): bool |
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{ |
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if ($this->whitelist->belongsToWhitelistedNamespace((string) $namespace->name)) { |
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return false; |
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} |
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return null === $namespace->name || (null !== $namespace->name && $this->prefix !== $namespace->name->getFirst()); |
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} |
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} |
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humbug /
php-scoper
Loading history...
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.