1 
2 /**
3  *    Copyright (C) 2018-present MongoDB, Inc.
4  *
5  *    This program is free software: you can redistribute it and/or modify
6  *    it under the terms of the Server Side Public License, version 1,
7  *    as published by MongoDB, Inc.
8  *
9  *    This program is distributed in the hope that it will be useful,
10  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  *    Server Side Public License for more details.
13  *
14  *    You should have received a copy of the Server Side Public License
15  *    along with this program. If not, see
16  *    <http://www.mongodb.com/licensing/server-side-public-license>.
17  *
18  *    As a special exception, the copyright holders give permission to link the
19  *    code of portions of this program with the OpenSSL library under certain
20  *    conditions as described in each individual source file and distribute
21  *    linked combinations including the program with the OpenSSL library. You
22  *    must comply with the Server Side Public License in all respects for
23  *    all of the code used other than as permitted herein. If you modify file(s)
24  *    with this exception, you may extend this exception to your version of the
25  *    file(s), but you are not obligated to do so. If you do not wish to do so,
26  *    delete this exception statement from your version. If you delete this
27  *    exception statement from all source files in the program, then also delete
28  *    it in the license file.
29  */
30 
31 #include "mongo/platform/basic.h"
32 
33 #include "mongo/base/error_codes.h"
34 
35 #include "mongo/base/static_assert.h"
36 #include "mongo/util/assert_util.h"
37 #include "mongo/util/mongoutils/str.h"
38 
39 namespace mongo {
40 
41 MONGO_STATIC_ASSERT(sizeof(ErrorCodes::Error) == sizeof(int));
42 
errorString(Error err)43 std::string ErrorCodes::errorString(Error err) {
44     switch (err) {
45         //#for $ec in $codes
46         case $ec.name:
47             return "$ec.name";
48         //#end for
49         default:
50             return mongoutils::str::stream() << "Location" << int(err);
51     }
52 }
53 
fromString(StringData name)54 ErrorCodes::Error ErrorCodes::fromString(StringData name) {
55     //#for $ec in $codes
56     if (name == "$ec.name"_sd)
57         return $ec.name;
58     //#end for
59     return UnknownError;
60 }
61 
operator <<(std::ostream & stream,ErrorCodes::Error code)62 std::ostream& operator<<(std::ostream& stream, ErrorCodes::Error code) {
63     return stream << ErrorCodes::errorString(code);
64 }
65 
66 //#for $cat in $categories
67 bool ErrorCodes::is${cat.name}(Error err) {
68     switch (err) {
69         //#for $code in $cat.codes
70         case $code:
71             return true;
72         //#end for
73         default:
74             return false;
75     }
76 }
77 //#end for
78 
throwExceptionForStatus(const Status & status)79 void error_details::throwExceptionForStatus(const Status& status) {
80     /**
81      * This type is used for all exceptions that don't have a more specific type. It is defined
82      * locally in this function to prevent anyone from catching it specifically separately from
83      * AssertionException.
84      */
85     class NonspecificAssertionException final : public AssertionException {
86     public:
87         using AssertionException::AssertionException;
88 
89     private:
90         void defineOnlyInFinalSubclassToPreventSlicing() final {}
91     };
92 
93     switch (status.code()) {
94         //#for $ec in $codes
95         case ErrorCodes::$ec.name:
96             throw ExceptionFor<ErrorCodes::$ec.name>(status);
97         //#end for
98         default:
99             throw NonspecificAssertionException(status);
100     }
101 }
102 
103 }  // namespace mongo
104