// 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.

#pragma once

#include "exec/common/template_helpers.hpp"

#include "exec/common/util.hpp"

#include "exprs/function/function_helpers.h"

#include "exprs/function/simple_function_factory.h"

#include "exprs/function_context.h"

namespace doris {

template <typename Impl>

class FunctionMultiSameArgs : public IFunction {

public:

static constexpr auto name = Impl::name;

static FunctionPtr create() { return std::make_shared<FunctionMultiSameArgs>(); }

String get_name() const override { return name; }

bool is_variadic() const override { return true; }

size_t get_number_of_arguments() const override { return 0; }

DataTypePtr get_return_type_impl(const DataTypes& arguments) const override {

return Impl::get_return_type_impl(arguments);

}

Status execute_impl(FunctionContext* context, Block& block, const ColumnNumbers& arguments,

uint32_t result, size_t input_rows_count) const override {

DCHECK_GE(arguments.size(), 1);

block.replace_by_position(result, Impl::execute(block, arguments, input_rows_count));

return Status::OK();

}

};

}; // namespace doris