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/**
* Copyright (C) 2022-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#pragma once
#include "mongo/db/exec/document_value/value.h"
#include "mongo/db/pipeline/field_path.h"
#include "mongo/db/query/optimizer/node.h"
namespace mongo::optimizer {
using ABTFieldNameFn =
std::function<ABT(FieldNameType fieldName, const bool isLastElement, ABT input)>;
/**
* Translates an aggregation FieldPath by invoking the `fieldNameFn` for each path component.
*/
ABT translateFieldPath(const FieldPath& fieldPath,
ABT initial,
const ABTFieldNameFn& fieldNameFn,
size_t skipFromStart = 0);
/**
* Translates a given FieldRef (typically used in a MatchExpression) with 'initial' as the input
* ABT.
*/
ABT translateFieldRef(const FieldRef& fieldRef, ABT initial);
/**
* Return the minimum or maximum value for the "class" of values represented by the input
* constant. Used to support type bracketing.
* Return format is <min/max value, bool inclusive>
*/
std::pair<boost::optional<ABT>, bool> getMinMaxBoundForType(bool isMin,
const sbe::value::TypeTags& tag);
/**
* Used by the optimizer to optionally convert path elements (e.g. PathArr) directly into intervals.
*/
boost::optional<IntervalReqExpr::Node> defaultConvertPathToInterval(const ABT& node);
} // namespace mongo::optimizer
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