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…304) Co-authored-by: Markus Staab <m.staab@complex-it.de>
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78
src/Extensions/PdoStatementFetchObjectDynamicReturnTypeExtension.php
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<?php | ||
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declare(strict_types=1); | ||
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namespace staabm\PHPStanDba\Extensions; | ||
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use PDOStatement; | ||
use PhpParser\Node\Expr\MethodCall; | ||
use PHPStan\Analyser\Scope; | ||
use PHPStan\Reflection\MethodReflection; | ||
use PHPStan\Reflection\ParametersAcceptorSelector; | ||
use PHPStan\Reflection\ReflectionProvider; | ||
use PHPStan\Type\Constant\ConstantBooleanType; | ||
use PHPStan\Type\Constant\ConstantStringType; | ||
use PHPStan\Type\DynamicMethodReturnTypeExtension; | ||
use PHPStan\Type\ObjectType; | ||
use PHPStan\Type\Type; | ||
use PHPStan\Type\TypeCombinator; | ||
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final class PdoStatementFetchObjectDynamicReturnTypeExtension implements DynamicMethodReturnTypeExtension | ||
{ | ||
/** | ||
* @var ReflectionProvider | ||
*/ | ||
private $reflectionProvider; | ||
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public function __construct(ReflectionProvider $reflectionProvider) | ||
{ | ||
$this->reflectionProvider = $reflectionProvider; | ||
} | ||
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public function getClass(): string | ||
{ | ||
return PDOStatement::class; | ||
} | ||
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public function isMethodSupported(MethodReflection $methodReflection): bool | ||
{ | ||
return \in_array($methodReflection->getName(), ['fetchObject'], true); | ||
} | ||
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public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): Type | ||
{ | ||
$returnType = ParametersAcceptorSelector::selectSingle($methodReflection->getVariants())->getReturnType(); | ||
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$resultType = $this->inferType($methodReflection, $methodCall, $scope); | ||
if (null !== $resultType) { | ||
$returnType = $resultType; | ||
} | ||
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return $returnType; | ||
} | ||
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private function inferType(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): ?Type | ||
{ | ||
$args = $methodCall->getArgs(); | ||
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$className = 'stdClass'; | ||
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if (\count($args) >= 1) { | ||
$classStringType = $scope->getType($args[0]->value); | ||
if ($classStringType instanceof ConstantStringType) { | ||
$className = $classStringType->getValue(); | ||
} else { | ||
return null; | ||
} | ||
} | ||
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if (!$this->reflectionProvider->hasClass($className)) { | ||
// XXX should we return NEVER or FALSE on unknown classes? | ||
return null; | ||
} | ||
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$classString = $this->reflectionProvider->getClass($className)->getName(); | ||
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return TypeCombinator::union(new ObjectType($classString), new ConstantBooleanType(false)); | ||
} | ||
} |
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<?php | ||
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namespace staabm\PHPStanDba\Tests\Fixture; | ||
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class MyRowClass | ||
{ | ||
} |
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