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PregMatchFlags.php
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<?php declare (strict_types=1); namespace RectorPrefix202411\Composer\Pcre\PHPStan; use PHPStan\Analyser\Scope; use PHPStan\Type\ArrayType; use PHPStan\Type\Constant\ConstantArrayType; use PHPStan\Type\Constant\ConstantIntegerType; use PHPStan\Type\IntersectionType; use PHPStan\Type\TypeCombinator; use PHPStan\Type\Type; use PhpParser\Node\Arg; use PHPStan\Type\Php\RegexArrayShapeMatcher; use PHPStan\Type\TypeTraverser; use PHPStan\Type\UnionType; final class PregMatchFlags { public static function getType(?Arg $flagsArg, Scope $scope) : ?Type { if ($flagsArg === null) { return new ConstantIntegerType(\PREG_UNMATCHED_AS_NULL); } $flagsType = $scope->getType($flagsArg->value); $constantScalars = $flagsType->getConstantScalarValues(); if ($constantScalars === []) { return null; } $internalFlagsTypes = []; foreach ($flagsType->getConstantScalarValues() as $constantScalarValue) { if (!\is_int($constantScalarValue)) { return null; } $internalFlagsTypes[] = new ConstantIntegerType($constantScalarValue | \PREG_UNMATCHED_AS_NULL); } return TypeCombinator::union(...$internalFlagsTypes); } public static function removeNullFromMatches(Type $matchesType) : Type { return TypeTraverser::map($matchesType, static function (Type $type, callable $traverse) : Type { if ($type instanceof UnionType || $type instanceof IntersectionType) { return $traverse($type); } if ($type instanceof ConstantArrayType) { return new ConstantArrayType($type->getKeyTypes(), \array_map(static function (Type $valueType) use($traverse) : Type { return $traverse($valueType); }, $type->getValueTypes()), $type->getNextAutoIndexes(), [], $type->isList()); } if ($type instanceof ArrayType) { return new ArrayType($type->getKeyType(), $traverse($type->getItemType())); } return TypeCombinator::removeNull($type); }); } }
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