Phan\AST\UnionTypeVisitor::visitType PHP Method

    public function visitType(Node $node) : UnionType
    {
        switch ($node->flags) {
            case \ast\flags\TYPE_ARRAY:
                return ArrayType::instance()->asUnionType();
            case \ast\flags\TYPE_BOOL:
                return BoolType::instance()->asUnionType();
            case \ast\flags\TYPE_CALLABLE:
                return CallableType::instance()->asUnionType();
            case \ast\flags\TYPE_DOUBLE:
                return FloatType::instance()->asUnionType();
            case \ast\flags\TYPE_LONG:
                return IntType::instance()->asUnionType();
            case \ast\flags\TYPE_NULL:
                return NullType::instance()->asUnionType();
            case \ast\flags\TYPE_OBJECT:
                return ObjectType::instance()->asUnionType();
            case \ast\flags\TYPE_STRING:
                return StringType::instance()->asUnionType();
            default:
                assert(false, "All flags must match. Found " . Debug::astFlagDescription($node->flags ?? 0));
                break;
        }
    }