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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\UseStmt; |
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use Humbug\PhpScoper\PhpParser\NodeVisitor\ParentNodeAppender; |
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use Humbug\PhpScoper\Reflector; |
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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\Use_; |
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use PhpParser\Node\Stmt\UseUse; |
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use PhpParser\NodeVisitorAbstract; |
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/** |
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* Prefixes the use statements. |
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* |
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* @private |
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*/ |
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final class UseStmtPrefixer 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 Reflector $reflector; |
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public function __construct( |
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string $prefix, |
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Whitelist $whitelist, |
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549 |
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Reflector $reflector |
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) { |
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$this->prefix = $prefix; |
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$this->reflector = $reflector; |
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$this->whitelist = $whitelist; |
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} |
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public function enterNode(Node $node): Node |
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{ |
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if ($node instanceof UseUse && $this->shouldPrefixUseStmt($node)) { |
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self::prefixStmt($node, $this->prefix); |
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} |
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return $node; |
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} |
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private function shouldPrefixUseStmt(UseUse $use): bool |
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{ |
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$useType = self::findUseType($use); |
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$nameString = $use->name->toString(); |
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$alreadyPrefixed = $this->prefix === $use->name->getFirst(); |
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12 |
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if ($alreadyPrefixed) { |
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return false; |
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} |
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253 |
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if ($this->whitelist->belongsToExcludedNamespace($nameString)) { |
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return false; |
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} |
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247 |
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if (Use_::TYPE_FUNCTION === $useType) { |
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return !$this->reflector->isFunctionInternal($nameString); |
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} |
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227 |
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if (Use_::TYPE_CONSTANT === $useType) { |
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return !$this->isExposedConstant($nameString); |
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} |
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return Use_::TYPE_NORMAL !== $useType |
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|| !$this->reflector->isClassInternal($nameString); |
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} |
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private static function prefixStmt(UseUse $use, string $prefix): void |
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{ |
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$previousName = $use->name; |
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$prefixedName = Name::concat( |
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$prefix, |
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$use->name, |
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$use->name->getAttributes(), |
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); |
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if (null === $prefixedName) { |
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return; |
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} |
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// Unlike the new (prefixed name), the previous name will not be |
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// traversed hence we need to manually set its parent attribute |
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ParentNodeAppender::setParent($previousName, $use); |
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UseStmtManipulator::setOriginalName($use, $previousName); |
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$use->name = $prefixedName; |
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} |
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/** |
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* Finds the type of the use statement. |
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* |
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* @param UseUse $use |
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* |
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* @return int See \PhpParser\Node\Stmt\Use_ type constants. |
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*/ |
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private static function findUseType(UseUse $use): int |
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{ |
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if (Use_::TYPE_UNKNOWN === $use->type) { |
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/** @var Use_ $parentNode */ |
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$parentNode = ParentNodeAppender::getParent($use); |
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return $parentNode->type; |
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} |
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return $use->type; |
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} |
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private function isExposedConstant(string $name): bool |
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{ |
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return $this->reflector->isConstantInternal($name) |
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|| $this->whitelist->isExposedConstantFromGlobalNamespace($name) |
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|| $this->whitelist->isSymbolExposed($name, true); |
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} |
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} |
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humbug /
php-scoper
