?????????? ????????? - ??????????????? - /opt/cpanel/ea-wappspector/vendor/rector/rector/rules/Php70/Rector/StmtsAwareInterface/IfIssetToCoalescingRector.php
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<?php declare (strict_types=1); namespace Rector\Php70\Rector\StmtsAwareInterface; use PhpParser\Node; use PhpParser\Node\Expr; use PhpParser\Node\Expr\BinaryOp\Coalesce; use PhpParser\Node\Expr\Isset_; use PhpParser\Node\Stmt; use PhpParser\Node\Stmt\Else_; use PhpParser\Node\Stmt\If_; use PhpParser\Node\Stmt\Return_; use Rector\Contract\PhpParser\Node\StmtsAwareInterface; use Rector\Rector\AbstractRector; use Rector\ValueObject\PhpVersionFeature; use Rector\VersionBonding\Contract\MinPhpVersionInterface; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @see \Rector\Tests\Php70\Rector\StmtsAwareInterface\IfIssetToCoalescingRector\IfIssetToCoalescingRectorTest */ final class IfIssetToCoalescingRector extends AbstractRector implements MinPhpVersionInterface { public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Change if with isset and return to coalesce', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { private $items = []; public function resolve($key) { if (isset($this->items[$key])) { return $this->items[$key]; } return 'fallback value'; } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { private $items = []; public function resolve($key) { return $this->items[$key] ?? 'fallback value'; } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [StmtsAwareInterface::class]; } /** * @param StmtsAwareInterface $node */ public function refactor(Node $node) : ?Node { if ($node->stmts === null) { return null; } foreach ($node->stmts as $key => $stmt) { if (!$stmt instanceof Return_) { continue; } if (!$stmt->expr instanceof Expr) { continue; } $previousStmt = $node->stmts[$key - 1] ?? null; if (!$previousStmt instanceof If_) { continue; } if (!$previousStmt->cond instanceof Isset_) { continue; } $ifOnlyStmt = $this->matchBareIfOnlyStmt($previousStmt); if (!$ifOnlyStmt instanceof Return_) { continue; } if (!$ifOnlyStmt->expr instanceof Expr) { continue; } $ifIsset = $previousStmt->cond; if (!$this->nodeComparator->areNodesEqual($ifOnlyStmt->expr, $ifIsset->vars[0])) { continue; } unset($node->stmts[$key - 1]); $stmt->expr = new Coalesce($ifOnlyStmt->expr, $stmt->expr); return $node; } return null; } public function provideMinPhpVersion() : int { return PhpVersionFeature::NULL_COALESCE; } private function matchBareIfOnlyStmt(If_ $if) : ?Stmt { if ($if->else instanceof Else_) { return null; } if ($if->elseifs !== []) { return null; } if (\count($if->stmts) !== 1) { return null; } return $if->stmts[0]; } }
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