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<?php |
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/** |
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* Parser Reflection API |
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* |
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* @copyright Copyright 2015, Lisachenko Alexander <[email protected]> |
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* |
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* This source file is subject to the license that is bundled |
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* with this source code in the file LICENSE. |
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*/ |
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namespace Go\ParserReflection\NodeVisitor; |
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use Go\ParserReflection\ValueResolver\NodeExpressionResolver; |
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use PhpParser\Node; |
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use PhpParser\NodeTraverser; |
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use PhpParser\NodeVisitorAbstract; |
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/** |
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* Visitor to collect static variables in the method/function body and resove them |
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*/ |
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class StaticVariablesCollector extends NodeVisitorAbstract |
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{ |
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/** |
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* Reflection context, eg. ReflectionClass, ReflectionMethod, etc |
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* |
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* @var mixed |
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*/ |
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private $context; |
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private $staticVariables = []; |
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/** |
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* Default constructor |
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* |
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* @param mixed $context Reflection context, eg. ReflectionClass, ReflectionMethod, etc |
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*/ |
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public function __construct($context) |
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{ |
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$this->context = $context; |
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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 $node) |
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{ |
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// There may be internal closures, we do not need to look at them |
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if ($node instanceof Node\Expr\Closure) { |
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return NodeTraverser::DONT_TRAVERSE_CHILDREN; |
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} |
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if ($node instanceof Node\Stmt\Static_) { |
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$expressionSolver = new NodeExpressionResolver($this->context); |
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$staticVariables = $node->vars; |
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foreach ($staticVariables as $staticVariable) { |
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$expr = $staticVariable->default; |
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if ($expr) { |
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$expressionSolver->process($expr); |
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$value = $expressionSolver->getValue(); |
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} else { |
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$value = null; |
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} |
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$this->staticVariables[$staticVariable->name] = $value; |
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} |
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} |
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return null; |
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} |
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/** |
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* Returns an associative map of static variables in the method/function body |
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* |
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* @return array |
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*/ |
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public function getStaticVariables() |
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{ |
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return $this->staticVariables; |
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} |
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} |
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goaop /
parser-reflection
