// 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/array_functions.h"

#include "common/logging.h"
#include "runtime/collection_value.h"

namespace doris {

void ArrayFunctions::init() {}

#define ARRAY_FUNCTION(TYPE, PRIMARY_TYPE)                                          \
    CollectionVal ArrayFunctions::array(FunctionContext* context, int num_children, \
                                        const TYPE* values) {                       \
        DCHECK_EQ(context->get_return_type().children.size(), 1);                   \
        CollectionValue v;                                                          \
        CollectionValue::init_collection(context, num_children, PRIMARY_TYPE, &v);  \
        auto iterator = v.iterator(PRIMARY_TYPE);                                   \
        for (int i = 0; i < num_children; ++i, iterator.next()) {                   \
            iterator.set(values + i);                                               \
        }                                                                           \
        CollectionVal ret;                                                          \
        v.to_collection_val(&ret);                                                  \
        return ret;                                                                 \
    }

ARRAY_FUNCTION(IntVal, TYPE_INT);
ARRAY_FUNCTION(StringVal, TYPE_VARCHAR);

} // namespace doris