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/**
* Copyright (C) 2020-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/platform/basic.h"
#include "mongo/db/cst/bson_lexer.h"
#include "mongo/db/cst/c_node.h"
#include "mongo/db/cst/cst_match_translation.h"
#include "mongo/db/cst/cst_sort_translation.h"
#include "mongo/db/matcher/expression.h"
#include "mongo/db/matcher/extensions_callback.h"
#include "mongo/db/pipeline/expression_context.h"
#include "mongo/db/query/sort_pattern.h"
namespace mongo::cst {
/**
* Parses the given 'filter' to a MatchExpression. Throws an exception if the filter fails to parse.
*/
std::unique_ptr<MatchExpression> parseToMatchExpression(
BSONObj filter,
const boost::intrusive_ptr<ExpressionContext>& expCtx,
const ExtensionsCallback& extensionsCallback) {
BSONLexer lexer{filter, ParserGen::token::START_MATCH};
CNode cst;
ParserGen(lexer, &cst).parse();
return cst_match_translation::translateMatchExpression(cst, expCtx, extensionsCallback);
}
/**
* Parses the given 'sort' object into a SortPattern. Throws an exception if the sort object fails
* to parse.
*/
SortPattern parseToSortPattern(BSONObj sort,
const boost::intrusive_ptr<ExpressionContext>& expCtx) {
BSONLexer lexer{sort, ParserGen::token::START_SORT};
CNode cst;
ParserGen(lexer, &cst).parse();
return cst_sort_translation::translateSortSpec(cst, expCtx);
}
} // namespace mongo::cst
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