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 + 0.0;
}
}
CODE_SAMPLE
)]);
}
/**
* @return array>
*/
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 = $this->nodeTypeResolver->getNativeType($node->right)->isInteger()->yes() ? new LNumber(0) : new DNumber(0);
return $node;
}
if ($this->isStringOrStaticNonNumericString($node->right) && $this->nodeTypeResolver->isNumberType($node->left)) {
$node->right = $this->nodeTypeResolver->getNativeType($node->left)->isInteger()->yes() ? new LNumber(0) : new DNumber(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;
}
}