Rule to convert "@param int|null $param" to "function method(?int $param)" about rector HOT 7 CLOSED

RectorConfig::configure()
    // A. whole set
    ->withPreparedSets(typeDeclarations: true)
    // B. or few rules
    ->withRules([
        TypedPropertyFromAssignsRector::class
    ]);

<?php

declare(strict_types=1);

use Rector\CodeQuality\Rector\ClassMethod\ReturnTypeFromStrictScalarReturnExprRector;
use Rector\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictNativeCallRector;
use Rector\Config\RectorConfig;
use Rector\Set\ValueObject\LevelSetList;

return static function (RectorConfig $rectorConfig): void {
    $rectorConfig->paths([
        __DIR__ . '/app/code',
    ]);

    # register rules
    $rectorConfig->rules([
        \Rector\CodeQuality\Rector\Class_\InlineConstructorDefaultToPropertyRector::class,
        \Rector\Php74\Rector\Property\TypedPropertyRector::class,
        \Rector\TypeDeclaration\Rector\Property\TypedPropertyFromStrictConstructorRector::class,
        \Rector\Visibility\Rector\ClassMethod\ExplicitPublicClassMethodRector::class,
        ReturnTypeFromStrictNativeCallRector::class,
        ReturnTypeFromStrictScalarReturnExprRector::class,
        \Rector\TypeDeclaration\Rector\Property\TypedPropertyFromAssignsRector::class,
    ]);

    $rectorConfig->skip([
        \Rector\Php80\Rector\Class_\ClassPropertyAssignToConstructorPromotionRector::class
    ]);

    #define sets of rules
    $rectorConfig->sets([
        LevelSetList::UP_TO_PHP_81
    ]);
};

<?php
class Handler
{
    /**
     * @var string
     */
    protected $fileName = '/var/log/filename.log';

    /**
     * @var int
     */
    protected $loggerType = \Monolog\Logger::INFO;
}

<?php
class Handler
{
    protected string $fileName = '/var/log/filename.log';
    protected int $loggerType = \Monolog\Logger::INFO;
}

<?php

class MyClass
{
    /**
     * @var MyOtherClass
     */
    private $myOtherClass;

    public function __construct(
        MyOtherClass $myOtherClass
    ) {
        $this->myOtherClass = $myOtherClass;
    }

    /**
     * @param int|null $storeId
     */
    public function getBaseUrl($storeId = null): string
    {
        return $this->myOtherClass->getStore($storeId)->getBaseUrl();
    }
}

<?php

declare(strict_types=1);

use Rector\Set\ValueObject\SetList;
use Rector\Config\RectorConfig;
use Rector\Set\ValueObject\LevelSetList;

return static function (RectorConfig $rectorConfig): void {
    $rectorConfig->paths([
        __DIR__ . '/app/code',
    ]);

    # Register rules
    $rectorConfig->rules([
        \Rector\CodeQuality\Rector\Class_\InlineConstructorDefaultToPropertyRector::class,
        \Rector\CodeQuality\Rector\Class_\CompleteDynamicPropertiesRector::class,
        \Rector\CodeQuality\Rector\ClassMethod\OptionalParametersAfterRequiredRector::class,
        \Rector\CodeQuality\Rector\ClassMethod\ReturnTypeFromStrictScalarReturnExprRector::class,

        \Rector\DeadCode\Rector\StaticCall\RemoveParentCallWithoutParentRector::class,

        \Rector\Visibility\Rector\ClassMethod\ExplicitPublicClassMethodRector::class,

        \Rector\TypeDeclaration\Rector\Property\TypedPropertyFromStrictConstructorRector::class,
        \Rector\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictNativeCallRector::class,
        \Rector\TypeDeclaration\Rector\Property\TypedPropertyFromAssignsRector::class,
        \Rector\TypeDeclaration\Rector\Param\ParamTypeFromStrictTypedPropertyRector::class,
        \Rector\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromReturnNewRector::class,
        \Rector\TypeDeclaration\Rector\ClassMethod\ReturnTypeFromStrictTypedPropertyRector::class,
        \Rector\TypeDeclaration\Rector\Property\TypedPropertyFromStrictConstructorRector::class,

        \Rector\Php54\Rector\Array_\LongArrayToShortArrayRector::class,

        \Rector\Php71\Rector\List_\ListToArrayDestructRector::class,
        \Rector\Php71\Rector\ClassConst\PublicConstantVisibilityRector::class,
        \Rector\Php74\Rector\Property\TypedPropertyRector::class,

        \Rector\Php80\Rector\FunctionLike\UnionTypesRector::class,
        \Rector\Php80\Rector\Switch_\ChangeSwitchToMatchRector::class,
        \Rector\Php80\Rector\ClassMethod\FinalPrivateToPrivateVisibilityRector::class,
        \Rector\Php80\Rector\Class_\StringableForToStringRector::class,
        \Rector\Php80\Rector\Catch_\RemoveUnusedVariableInCatchRector::class,
        \Rector\Php80\Rector\FunctionLike\MixedTypeRector::class,

        \Rector\Php81\Rector\FuncCall\Php81ResourceReturnToObjectRector::class,
        \Rector\Php81\Rector\FuncCall\NullToStrictStringFuncCallArgRector::class,

    ]);

    $rectorConfig->skip([
        \Rector\Php80\Rector\Class_\ClassPropertyAssignToConstructorPromotionRector::class,
        \Rector\Php81\Rector\Property\ReadOnlyPropertyRector::class,
        \Rector\Privatization\Rector\Class_\FinalizeClassesWithoutChildrenRector::class,
        \Rector\Php81\Rector\ClassConst\FinalizePublicClassConstantRector::class,
        \Rector\CodingStyle\Rector\ClassConst\VarConstantCommentRector::class,
        \Rector\Naming\Rector\Foreach_\RenameForeachValueVariableToMatchExprVariableRector::class,
    ]);

    # define rules with custom configuration
    /*$rectorConfig->ruleWithConfiguration(\Rector\Renaming\Rector\FuncCall\RenameFunctionRector::class, [
        'json_encode' => 'jsonEncode',
        'json_decode' => 'jsonDecode',
    ]);*/

    # define sets of rules
    $rectorConfig->sets([
        LevelSetList::UP_TO_PHP_81,
        SetList::PHP_81,
        SetList::DEAD_CODE,
        SetList::NAMING,
        SetList::TYPE_DECLARATION,
        SetList::TYPE_DECLARATION_STRICT,
        SetList::EARLY_RETURN,
        SetList::PRIVATIZATION,
        SetList::CODE_QUALITY,
        SetList::CODING_STYLE,
    ]);
};