// Licensed to the Apache Software Foundation (ASF) under one

// or more contributor license agreements.  See the NOTICE file

// distributed with this work for additional information

// regarding copyright ownership.  The ASF licenses this file

// to you under the Apache License, Version 2.0 (the

// "License"); you may not use this file except in compliance

// with the License.  You may obtain a copy of the License at

//

//   http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing,

// software distributed under the License is distributed on an

// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY

// KIND, either express or implied.  See the License for the

// specific language governing permissions and limitations

// under the License.

#include "exprs/vstruct_literal.h"

#include <memory>

#include <vector>

#include "core/column/column.h"

#include "core/data_type/data_type.h"

#include "core/field.h"

#include "exprs/vexpr.h"

namespace doris {

class RowDescriptor;

class RuntimeState;

class VExprContext;

} // namespace doris

namespace doris {

Status VStructLiteral::prepare(RuntimeState* state, const RowDescriptor& row_desc,

                               VExprContext* context) {

    RETURN_IF_ERROR_OR_PREPARED(VExpr::prepare(state, row_desc, context));

    Field struct_field = Field::create_field<TYPE_STRUCT>(Tuple());

    for (const auto& child : _children) {

        Field item;

        auto child_literal = std::dynamic_pointer_cast<const VLiteral>(child);

        child_literal->get_column_ptr()->get(0, item);

        struct_field.get<TYPE_STRUCT>().push_back(item);

    }

    _column_ptr = _data_type->create_column_const(1, struct_field);

    return Status::OK();

}

} // namespace doris