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<?php |
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/** |
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* Php55Features.php |
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* |
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* MIT LICENSE |
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* |
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* LICENSE: This source file is subject to the MIT license. |
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* A copy of the licenses text was distributed alongside this |
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* file (usually the repository or package root). The text can also |
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* be obtained through one of the following sources: |
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* * http://opensource.org/licenses/MIT |
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* * https://github.com/suralc/pvra/blob/master/LICENSE |
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* |
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* @author suralc <[email protected]> |
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* @license http://opensource.org/licenses/MIT MIT |
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*/ |
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namespace Pvra\Analysers; |
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use PhpParser\Node; |
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use Pvra\AnalyserAwareInterface; |
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use Pvra\Result\Reason; |
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/** |
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* Class Php55Features |
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* |
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* Supports the detection of following features: |
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* * Generator definitions using the `yield` - keyword |
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* * `finally` |
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* * Usage of list in foreach `foreach($array() as list($a, $b)) {}` |
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* * Arbitrary expressions in the `empty` construct |
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* * Array and string dereferencing |
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* * Classname resolution using `Name::class` |
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* |
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* @package Pvra\Analysers |
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*/ |
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class Php55Features extends LanguageFeatureAnalyser implements AnalyserAwareInterface |
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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 $node) |
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{ |
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if ($this->mode & self::MODE_ADDITION) { |
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if ($node instanceof Node\Expr\Yield_) { |
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$this->getResult()->addRequirement( |
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Reason::GENERATOR_DEFINITION, |
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$node->getLine() |
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); |
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} elseif ($node instanceof Node\Stmt\TryCatch && $node->finallyStmts !== null) { |
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$this->getResult()->addRequirement( |
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Reason::TRY_CATCH_FINALLY, |
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$node->getLine() |
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); |
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} elseif ($node instanceof Node\Stmt\Foreach_ && $node->valueVar instanceof Node\Expr\List_) { |
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$this->getResult()->addRequirement( |
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Reason::LIST_IN_FOREACH, |
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$node->getLine() |
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); |
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} elseif ($node instanceof Node\Expr\Empty_ |
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&& !($node->expr instanceof Node\Expr\Variable |
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|| $node->expr instanceof Node\Expr\PropertyFetch |
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|| $node->expr instanceof Node\Expr\StaticPropertyFetch |
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|| $node->expr instanceof Node\Expr\ArrayDimFetch) |
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) { |
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$this->getResult()->addRequirement( |
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Reason::EXPR_IN_EMPTY, |
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$node->getLine() |
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); |
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} elseif ($node instanceof Node\Expr\ArrayDimFetch |
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&& ($node->var instanceof Node\Expr\Array_ |
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|| $node->var instanceof Node\Scalar\String_ |
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) |
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) { |
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$this->getResult()->addRequirement( |
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Reason::ARRAY_OR_STRING_DEREFERENCING, |
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$node->getLine() |
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); |
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} elseif ($node instanceof Node\Expr\ClassConstFetch && strcasecmp($node->name, 'class') === 0) { |
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$this->getResult()->addRequirement( |
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Reason::CLASS_NAME_RESOLUTION, |
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$node->getLine() |
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); |
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} |
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} |
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} |
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} |
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suralc /
pvra
