1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/**
* Copyright (C) 2017 MongoDB Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 GNU Affero General 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 <string>
#include "mongo/bson/bsonelement.h"
#include "mongo/bson/bsontypes.h"
#include "mongo/stdx/unordered_map.h"
namespace mongo {
/**
* Represents a type alias in the match language. This is either a particular BSON type, or the
* "number" type, which is is the union of all numeric BSON types.
*/
struct MatcherTypeAlias {
static constexpr StringData kMatchesAllNumbersAlias = "number"_sd;
static const stdx::unordered_map<std::string, BSONType> typeAliasMap;
/**
* Creates a MatcherTypeAlias from a BSONElement. Returns an error if the element does not
* contain a valid numerical type code or a valid string type alias.
*/
static StatusWith<MatcherTypeAlias> parse(BSONElement);
/**
* Creates a MatcherTypeAlias from a type alias string, or returns an error if the alias is not
* valid.
*/
static StatusWith<MatcherTypeAlias> parseFromStringAlias(StringData typeAlias);
MatcherTypeAlias() = default;
/* implicit */ MatcherTypeAlias(BSONType bsonType) : bsonType(bsonType) {}
/**
* Returns whether the element is of a type which matches this type.
*/
bool elementMatchesType(BSONElement) const;
bool allNumbers = false;
BSONType bsonType = BSONType::EOO;
};
} // namespace mongo
|
