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<?php declare (strict_types=1); namespace Rector\CodingStyle\Rector\FuncCall; use PhpParser\Node; use PhpParser\Node\Arg; use PhpParser\Node\Expr\FuncCall; use PhpParser\Node\Scalar\String_; use Rector\Core\NodeAnalyzer\ArgsAnalyzer; use Rector\Core\Rector\AbstractRector; use Rector\NodeTypeResolver\TypeAnalyzer\StringTypeAnalyzer; use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample; use Symplify\RuleDocGenerator\ValueObject\RuleDefinition; /** * @changelog http://php.net/manual/en/function.implode.php#refsect1-function.implode-description * @changelog https://3v4l.org/iYTgh * @see \Rector\Tests\CodingStyle\Rector\FuncCall\ConsistentImplodeRector\ConsistentImplodeRectorTest */ final class ConsistentImplodeRector extends AbstractRector { /** * @readonly * @var \Rector\NodeTypeResolver\TypeAnalyzer\StringTypeAnalyzer */ private $stringTypeAnalyzer; /** * @readonly * @var \Rector\Core\NodeAnalyzer\ArgsAnalyzer */ private $argsAnalyzer; public function __construct(StringTypeAnalyzer $stringTypeAnalyzer, ArgsAnalyzer $argsAnalyzer) { $this->stringTypeAnalyzer = $stringTypeAnalyzer; $this->argsAnalyzer = $argsAnalyzer; } public function getRuleDefinition() : RuleDefinition { return new RuleDefinition('Changes various implode forms to consistent one', [new CodeSample(<<<'CODE_SAMPLE' class SomeClass { public function run(array $items) { $itemsAsStrings = implode($items); $itemsAsStrings = implode($items, '|'); $itemsAsStrings = implode('|', $items); } } CODE_SAMPLE , <<<'CODE_SAMPLE' class SomeClass { public function run(array $items) { $itemsAsStrings = implode('', $items); $itemsAsStrings = implode('|', $items); $itemsAsStrings = implode('|', $items); } } CODE_SAMPLE )]); } /** * @return array<class-string<Node>> */ public function getNodeTypes() : array { return [FuncCall::class]; } /** * @param FuncCall $node */ public function refactor(Node $node) : ?Node { if (!$this->isName($node, 'implode')) { return null; } if (\count($node->args) === 1) { // complete default value '' $node->args[1] = $node->args[0]; $node->args[0] = new Arg(new String_('')); return $node; } if (!$this->argsAnalyzer->isArgInstanceInArgsPosition($node->args, 0)) { return null; } /** @var Arg $arg0 */ $arg0 = $node->args[0]; $firstArgumentValue = $arg0->value; if ($firstArgumentValue instanceof String_) { return null; } if (\count($node->args) !== 2) { return null; } if (!$this->argsAnalyzer->isArgInstanceInArgsPosition($node->args, 1)) { return null; } /** @var Arg $arg1 */ $arg1 = $node->args[1]; if ($this->stringTypeAnalyzer->isStringOrUnionStringOnlyType($arg1->value)) { $node->args = \array_reverse($node->args); return $node; } return null; } }
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