rector/rules/Php71/Rector/BinaryOp/BinaryOpBetweenNumberAndStr...

120 lines
3.5 KiB
PHP

<?php
declare (strict_types=1);
namespace Rector\Php71\Rector\BinaryOp;
use PhpParser\Node;
use PhpParser\Node\Expr;
use PhpParser\Node\Expr\BinaryOp;
use PhpParser\Node\Expr\BinaryOp\Coalesce;
use PhpParser\Node\Expr\BinaryOp\Concat;
use PhpParser\Node\Expr\Variable;
use PhpParser\Node\Scalar;
use PhpParser\Node\Scalar\LNumber;
use PhpParser\Node\Scalar\MagicConst\Line;
use PhpParser\Node\Scalar\String_;
use PHPStan\Type\Constant\ConstantStringType;
use Rector\NodeAnalyzer\ExprAnalyzer;
use Rector\Rector\AbstractRector;
use Rector\ValueObject\PhpVersionFeature;
use Rector\VersionBonding\Contract\MinPhpVersionInterface;
use Symplify\RuleDocGenerator\ValueObject\CodeSample\CodeSample;
use Symplify\RuleDocGenerator\ValueObject\RuleDefinition;
/**
* @changelog https://3v4l.org/XPEEl
* @changelog https://3v4l.org/ObNQZ
* @see \Rector\Tests\Php71\Rector\BinaryOp\BinaryOpBetweenNumberAndStringRector\BinaryOpBetweenNumberAndStringRectorTest
*/
final class BinaryOpBetweenNumberAndStringRector extends AbstractRector implements MinPhpVersionInterface
{
/**
* @readonly
* @var \Rector\NodeAnalyzer\ExprAnalyzer
*/
private $exprAnalyzer;
public function __construct(ExprAnalyzer $exprAnalyzer)
{
$this->exprAnalyzer = $exprAnalyzer;
}
public function provideMinPhpVersion() : int
{
return PhpVersionFeature::BINARY_OP_NUMBER_STRING;
}
public function getRuleDefinition() : RuleDefinition
{
return new RuleDefinition('Change binary operation between some number + string to PHP 7.1 compatible version', [new CodeSample(<<<'CODE_SAMPLE'
class SomeClass
{
public function run()
{
$value = 5 + '';
$value = 5.0 + 'hi';
}
}
CODE_SAMPLE
, <<<'CODE_SAMPLE'
class SomeClass
{
public function run()
{
$value = 5 + 0;
$value = 5.0 + 0;
}
}
CODE_SAMPLE
)]);
}
/**
* @return array<class-string<Node>>
*/
public function getNodeTypes() : array
{
return [BinaryOp::class];
}
/**
* @param BinaryOp $node
*/
public function refactor(Node $node) : ?Node
{
if ($node instanceof Concat) {
return null;
}
if ($node instanceof Coalesce) {
return null;
}
if ($this->exprAnalyzer->isNonTypedFromParam($node->left)) {
return null;
}
if ($this->exprAnalyzer->isNonTypedFromParam($node->right)) {
return null;
}
if ($this->isStringOrStaticNonNumericString($node->left) && $this->nodeTypeResolver->isNumberType($node->right)) {
$node->left = new LNumber(0);
return $node;
}
if ($this->isStringOrStaticNonNumericString($node->right) && $this->nodeTypeResolver->isNumberType($node->left)) {
$node->right = new LNumber(0);
return $node;
}
return null;
}
private function isStringOrStaticNonNumericString(Expr $expr) : bool
{
// replace only scalar values, not variables/constants/etc.
if (!$expr instanceof Scalar && !$expr instanceof Variable) {
return \false;
}
if ($expr instanceof Line) {
return \false;
}
if ($expr instanceof String_) {
return !\is_numeric($expr->value);
}
$exprStaticType = $this->getType($expr);
if ($exprStaticType instanceof ConstantStringType) {
return !\is_numeric($exprStaticType->getValue());
}
return \false;
}
}