// 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.

// This file is copied from

// https://github.com/ClickHouse/ClickHouse/blob/master/src/Common/FieldVisitors.h

// and modified by Doris

#pragma once

#include "common/demangle.h"

#include "common/exception.h"

#include "common/status.h"

#include "core/accurate_comparison.h"

#include "core/data_type/primitive_type.h"

#include "core/field.h"

namespace doris {

/** StaticVisitor (and its descendants) - class with overloaded operator() for all types of fields.

  * You could call visitor for field using function 'apply_visitor'.

  * Also "binary visitor" is supported - its operator() takes two arguments.

  */

template <typename R = void>

struct StaticVisitor {

    using ResultType = R;

};

/// F is template parameter, to allow universal reference for field, that is useful for const and non-const values.

template <typename Visitor, typename F>

typename std::decay_t<Visitor>::ResultType apply_visitor(Visitor&& visitor, F&& field) {

    switch (field.get_type()) {

    case PrimitiveType::TYPE_NULL:

        return visitor.template apply<PrimitiveType::TYPE_NULL>(field.template get<TYPE_NULL>());

    case PrimitiveType::TYPE_DATETIMEV2:

        return visitor.template apply<PrimitiveType::TYPE_DATETIMEV2>(

                field.template get<TYPE_DATETIMEV2>());

    case PrimitiveType::TYPE_TIMESTAMP_NS:

        return visitor.template apply<PrimitiveType::TYPE_TIMESTAMP_NS>(

                field.template get<TYPE_TIMESTAMP_NS>());

    case PrimitiveType::TYPE_TIMESTAMPTZ:

        return visitor.template apply<PrimitiveType::TYPE_TIMESTAMPTZ>(

                field.template get<TYPE_TIMESTAMPTZ>());

    case PrimitiveType::TYPE_LARGEINT:

        return visitor.template apply<PrimitiveType::TYPE_LARGEINT>(

                field.template get<TYPE_LARGEINT>());

    case PrimitiveType::TYPE_DATETIME:

        return visitor.template apply<PrimitiveType::TYPE_DATETIME>(

                field.template get<TYPE_DATETIME>());

    case PrimitiveType::TYPE_DATE:

        return visitor.template apply<PrimitiveType::TYPE_DATE>(field.template get<TYPE_DATE>());

    case PrimitiveType::TYPE_DATEV2:

        return visitor.template apply<PrimitiveType::TYPE_DATEV2>(

                field.template get<TYPE_DATEV2>());

    case PrimitiveType::TYPE_BOOLEAN:

        return visitor.template apply<PrimitiveType::TYPE_BOOLEAN>(

                field.template get<TYPE_BOOLEAN>());

    case PrimitiveType::TYPE_TINYINT:

        return visitor.template apply<PrimitiveType::TYPE_TINYINT>(

                field.template get<TYPE_TINYINT>());

    case PrimitiveType::TYPE_SMALLINT:

        return visitor.template apply<PrimitiveType::TYPE_SMALLINT>(

                field.template get<TYPE_SMALLINT>());

    case PrimitiveType::TYPE_INT:

        return visitor.template apply<PrimitiveType::TYPE_INT>(field.template get<TYPE_INT>());

    case PrimitiveType::TYPE_BIGINT:

        return visitor.template apply<PrimitiveType::TYPE_BIGINT>(

                field.template get<TYPE_BIGINT>());

    case PrimitiveType::TYPE_UINT32:

        return visitor.template apply<PrimitiveType::TYPE_UINT32>(

                field.template get<TYPE_UINT32>());

    case PrimitiveType::TYPE_UINT64:

        return visitor.template apply<PrimitiveType::TYPE_UINT64>(

                field.template get<TYPE_UINT64>());

    case PrimitiveType::TYPE_FLOAT:

        return visitor.template apply<PrimitiveType::TYPE_FLOAT>(field.template get<TYPE_FLOAT>());

    case PrimitiveType::TYPE_TIMEV2:

        return visitor.template apply<PrimitiveType::TYPE_TIMEV2>(

                field.template get<TYPE_TIMEV2>());

    case PrimitiveType::TYPE_DOUBLE:

        return visitor.template apply<PrimitiveType::TYPE_DOUBLE>(

                field.template get<TYPE_DOUBLE>());

    case PrimitiveType::TYPE_IPV4:

        return visitor.template apply<PrimitiveType::TYPE_IPV4>(field.template get<TYPE_IPV4>());

    case PrimitiveType::TYPE_IPV6:

        return visitor.template apply<PrimitiveType::TYPE_IPV6>(field.template get<TYPE_IPV6>());

    case PrimitiveType::TYPE_STRING:

        return visitor.template apply<PrimitiveType::TYPE_STRING>(

                field.template get<TYPE_STRING>());

    case PrimitiveType::TYPE_CHAR:

        return visitor.template apply<PrimitiveType::TYPE_CHAR>(field.template get<TYPE_CHAR>());

    case PrimitiveType::TYPE_VARCHAR:

        return visitor.template apply<PrimitiveType::TYPE_VARCHAR>(

                field.template get<TYPE_VARCHAR>());

    case PrimitiveType::TYPE_VARBINARY:

        return visitor.template apply<PrimitiveType::TYPE_VARBINARY>(

                field.template get<TYPE_VARBINARY>());

    case PrimitiveType::TYPE_ARRAY:

        return visitor.template apply<PrimitiveType::TYPE_ARRAY>(field.template get<TYPE_ARRAY>());

    case PrimitiveType::TYPE_STRUCT:

        return visitor.template apply<PrimitiveType::TYPE_STRUCT>(

                field.template get<TYPE_STRUCT>());

    case PrimitiveType::TYPE_MAP:

        return visitor.template apply<PrimitiveType::TYPE_MAP>(field.template get<TYPE_MAP>());

    case PrimitiveType::TYPE_VARIANT:

        return visitor.template apply<PrimitiveType::TYPE_VARIANT>(

                field.template get<TYPE_VARIANT>());

    case PrimitiveType::TYPE_DECIMAL32:

        return visitor.template apply<PrimitiveType::TYPE_DECIMAL32>(

                field.template get<TYPE_DECIMAL32>());

    case PrimitiveType::TYPE_DECIMAL64:

        return visitor.template apply<PrimitiveType::TYPE_DECIMAL64>(

                field.template get<TYPE_DECIMAL64>());

    case PrimitiveType::TYPE_DECIMALV2:

        return visitor.template apply<PrimitiveType::TYPE_DECIMALV2>(

                field.template get<TYPE_DECIMALV2>());

    case PrimitiveType::TYPE_DECIMAL128I:

        return visitor.template apply<PrimitiveType::TYPE_DECIMAL128I>(

                field.template get<TYPE_DECIMAL128I>());

    case PrimitiveType::TYPE_DECIMAL256:

        return visitor.template apply<PrimitiveType::TYPE_DECIMAL256>(

                field.template get<TYPE_DECIMAL256>());

    case PrimitiveType::TYPE_BITMAP:

        return visitor.template apply<PrimitiveType::TYPE_BITMAP>(

                field.template get<TYPE_BITMAP>());

    case PrimitiveType::TYPE_HLL:

        return visitor.template apply<PrimitiveType::TYPE_HLL>(field.template get<TYPE_HLL>());

    case PrimitiveType::TYPE_QUANTILE_STATE:

        return visitor.template apply<PrimitiveType::TYPE_QUANTILE_STATE>(

                field.template get<TYPE_QUANTILE_STATE>());

    case PrimitiveType::TYPE_JSONB:

        return visitor.template apply<PrimitiveType::TYPE_JSONB>(field.template get<TYPE_JSONB>());

    default:

        throw doris::Exception(ErrorCode::INTERNAL_ERROR, "Bad type of Field {}",

                               static_cast<int>(field.get_type()));

        return {};

    }

}

Unexecuted instantiation: _ZN5doris13apply_visitorIRNS_26FieldVisitorToStringSimpleERKNS_5FieldEEENSt5decayIT_E4type10ResultTypeEOS7_OT0_

Unexecuted instantiation: _ZN5doris13apply_visitorIRNS_12variant_util24FieldVisitorToScalarTypeERKNS_5FieldEEENSt5decayIT_E4type10ResultTypeEOS8_OT0_

Unexecuted instantiation: _ZN5doris13apply_visitorINS_12variant_util32FieldVisitorToNumberOfDimensionsERKNS_5FieldEEENSt5decayIT_E4type10ResultTypeEOS7_OT0_

Unexecuted instantiation: _ZN5doris13apply_visitorIRNS_12variant_util32FieldVisitorToNumberOfDimensionsERKNS_5FieldEEENSt5decayIT_E4type10ResultTypeEOS8_OT0_

Unexecuted instantiation: _ZN5doris13apply_visitorIRNS_12variant_util30SimpleFieldVisitorToScalarTypeERKNS_5FieldEEENSt5decayIT_E4type10ResultTypeEOS8_OT0_

} // namespace doris