PdoPrepareDynamicReturnTypeExtension.php

<?php declare(strict_types = 1);

namespace PHPStan\Type\Php;

use PhpParser\Node\Expr\MethodCall;
use PHPStan\Analyser\Scope;
use PHPStan\Reflection\MethodReflection;
use PHPStan\Reflection\ParametersAcceptorSelector;
use PHPStan\Type\DynamicMethodReturnTypeExtension;
use PHPStan\Type\Type;
use PHPStan\Type\TypeUtils;

class PdoPrepareDynamicReturnTypeExtension implements DynamicMethodReturnTypeExtension
{

	public function getClass(): string
	{
		return 'PDO';
	}

	public function isMethodSupported(MethodReflection $methodReflection): bool
	{
		return $methodReflection->getName() === 'prepare';
	}

	public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): Type
	{
		$returnType = ParametersAcceptorSelector::selectFromArgs(
			$scope,
			$methodCall->getArgs(),
			$methodReflection->getVariants(),
		)->getReturnType();

		return TypeUtils::toBenevolentUnion($returnType);
	}

}