Hi @TomasVotruba @samsonasik

Because of recent merge on PHPStan the test https://github.com/rectorphp/rector-src/blob/5be8f82d019842fb56fd0338da0b0569dbdf0bcb/rules-tests/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector/Fixture/return_by_array_shape_type.php.inc will fail on next PHPStan release.

To me, this seems to be expected since you're calling getNativeType
https://github.com/rectorphp/rector-src/blob/5be8f82d019842fb56fd0338da0b0569dbdf0bcb/rules/TypeDeclaration/Rector/ArrowFunction/AddArrowFunctionReturnTypeRector.php#L61

And in

/**
     * @param array<int, array{bar: int}> $values
     */
    private function foo(array $values): void
    {
        $bars = array_map(fn($value) => $value['bar'], $values);
    }

the native type of $value['bar'] was fixed from int to mixed. (Cause $values is just an array)

I dunno if you want to

• change your implementation
• remove/update the test