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<?php namespace SuperClosure\Analyzer\Visitor;
use PhpParser\Node\Scalar\LNumber as NumberNode;
use PhpParser\Node\Scalar\String_ as StringNode;
use PhpParser\Node as AstNode;
use PhpParser\NodeVisitorAbstract as NodeVisitor;
/**
* This is a visitor that resolves magic constants (e.g., __FILE__) to their
* intended values within a closure's AST.
*
* @internal
*/
final class MagicConstantVisitor extends NodeVisitor
{
/**
* @var array
*/
private $location;
/**
* @param array $location
*/
public function __construct(array $location)
{
$this->location = $location;
}
public function leaveNode(AstNode $node)
{
switch ($node->getType()) {
case 'Scalar_MagicConst_Class' :
return new StringNode($this->location['class'] ?: '');
case 'Scalar_MagicConst_Dir' :
return new StringNode($this->location['directory'] ?: '');
case 'Scalar_MagicConst_File' :
return new StringNode($this->location['file'] ?: '');
case 'Scalar_MagicConst_Function' :
return new StringNode($this->location['function'] ?: '');
case 'Scalar_MagicConst_Line' :
return new NumberNode($node->getAttribute('startLine') ?: 0);
case 'Scalar_MagicConst_Method' :
return new StringNode($this->location['method'] ?: '');
case 'Scalar_MagicConst_Namespace' :
return new StringNode($this->location['namespace'] ?: '');
case 'Scalar_MagicConst_Trait' :
return new StringNode($this->location['trait'] ?: '');
}
}
}