?????????? ????????? - ??????????????? - /opt/cpanel/ea-wappspector/vendor/rector/rector/rules/DeadCode/Rector/For_/RemoveDeadIfForeachForRector.php
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<?php declare (strict_types=1); namespace Rector\DeadCode\Rector\For_; use PhpParser\Node; use PhpParser\Node\Expr; use PhpParser\Node\Expr\Assign; use PhpParser\Node\Expr\CallLike; use PhpParser\Node\Expr\Variable; use PhpParser\Node\Stmt\Else_; use PhpParser\Node\Stmt\For_; use PhpParser\Node\Stmt\Foreach_; use PhpParser\Node\Stmt\If_; use Rector\Contract\PhpParser\Node\StmtsAwareInterface; use Rector\EarlyReturn\NodeTransformer\ConditionInverter; use Rector\NodeManipulator\StmtsManipulator; use Rector\PhpParser\Node\BetterNodeFinder; use Rector\Rector\AbstractRector; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\DeadCode\Rector\For_\RemoveDeadIfForeachForRector\RemoveDeadIfForeachForRectorTest */ final class RemoveDeadIfForeachForRector extends AbstractRector { /** * @readonly * @var \Rector\EarlyReturn\NodeTransformer\ConditionInverter */ private $conditionInverter; /** * @readonly * @var \Rector\PhpParser\Node\BetterNodeFinder */ private $betterNodeFinder; /** * @readonly * @var \Rector\NodeManipulator\StmtsManipulator */ private $stmtsManipulator; /** * @var bool */ private $hasChanged = \false; public function __construct(ConditionInverter $conditionInverter, BetterNodeFinder $betterNodeFinder, StmtsManipulator $stmtsManipulator) { $this->conditionInverter = $conditionInverter; $this->betterNodeFinder = $betterNodeFinder; $this->stmtsManipulator = $stmtsManipulator; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Remove if, foreach and for that does not do anything', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { public function run($value) { if ($value) { } foreach ($values as $value) { } return $value; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { public function run($value) { return $value; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [StmtsAwareInterface::class]; } /** * @param StmtsAwareInterface $node * @return \PhpParser\Node|null|int */ public function refactor(Node $node) { if ($node->stmts === null) { return null; } $this->hasChanged = \false; foreach ($node->stmts as $key => $stmt) { if (!$stmt instanceof If_ && !$stmt instanceof For_ && !$stmt instanceof Foreach_) { continue; } if ($stmt->stmts !== []) { continue; } if ($stmt instanceof If_) { $this->processIf($stmt, $key, $node); continue; } $this->processForForeach($stmt, $key, $node); } if ($this->hasChanged) { return $node; } return null; } private function processIf(If_ $if, int $key, StmtsAwareInterface $stmtsAware) : void { if ($if->elseifs !== []) { return; } // useless if () if (!$if->else instanceof Else_) { if ($this->hasNodeSideEffect($if->cond)) { return; } unset($stmtsAware->stmts[$key]); $this->hasChanged = \true; return; } $if->cond = $this->conditionInverter->createInvertedCondition($if->cond); $if->stmts = $if->else->stmts; $if->else = null; $this->hasChanged = \true; } /** * @param \PhpParser\Node\Stmt\For_|\PhpParser\Node\Stmt\Foreach_ $for */ private function processForForeach($for, int $key, StmtsAwareInterface $stmtsAware) : void { $stmts = (array) $stmtsAware->stmts; if ($for instanceof For_) { $variables = $this->betterNodeFinder->findInstanceOf(\array_merge($for->init, $for->cond, $for->loop), Variable::class); foreach ($variables as $variable) { if ($this->stmtsManipulator->isVariableUsedInNextStmt($stmts, $key + 1, (string) $this->getName($variable))) { return; } } unset($stmtsAware->stmts[$key]); $this->hasChanged = \true; return; } $exprs = \array_filter([$for->expr, $for->valueVar, $for->valueVar]); $variables = $this->betterNodeFinder->findInstanceOf($exprs, Variable::class); foreach ($variables as $variable) { if ($this->stmtsManipulator->isVariableUsedInNextStmt($stmts, $key + 1, (string) $this->getName($variable))) { return; } } unset($stmtsAware->stmts[$key]); $this->hasChanged = \true; } private function hasNodeSideEffect(Expr $expr) : bool { return $this->betterNodeFinder->hasInstancesOf($expr, [CallLike::class, Assign::class]); } }
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| PHP 8.2.30 | ??????????? ?????????: 0 |
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