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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\NodeVisitor\Resolver\FullyQualifiedNameResolver; |
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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 function array_reduce; |
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/** |
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* Appends a `class_alias` to the whitelisted 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 $prefix; |
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private $whitelist; |
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private $nameResolver; |
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public function __construct(string $prefix, Whitelist $whitelist, FullyQualifiedNameResolver $nameResolver) |
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{ |
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$this->prefix = $prefix; |
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$this->whitelist = $whitelist; |
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$this->nameResolver = $nameResolver; |
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} |
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/** |
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* @inheritdoc |
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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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$namespace->stmts, |
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[$this, 'createNamespaceStmts'], |
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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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* @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[] = $stmt; |
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if (false === ($stmt instanceof Class_ || $stmt instanceof Interface_)) { |
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return $stmts; |
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} |
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/** @var Class_|Interface_ $stmt */ |
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if (null === $stmt->name) { |
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return $stmts; |
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} |
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$originalName = $this->nameResolver->resolveName($stmt->name)->getName(); |
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if (false === ($originalName instanceof FullyQualified) |
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|| $this->whitelist->belongsToWhitelistedNamespace((string) $originalName) |
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|| false === $this->whitelist->isSymbolWhitelisted((string) $originalName) |
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) { |
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return $stmts; |
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} |
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/* @var FullyQualified $originalName */ |
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$stmts[] = $this->createAliasStmt($originalName, $stmt); |
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return $stmts; |
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} |
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private function createAliasStmt(FullyQualified $originalName, Node $stmt): Expression |
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{ |
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$call = new ClassAliasFuncCall( |
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FullyQualified::concat($this->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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$call->setAttribute(ParentNodeAppender::PARENT_ATTRIBUTE, $expression); |
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return $expression; |
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} |
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} |
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humbug /
php-scoper
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..