forked from FerretDB/FerretDB
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add new BSON decoding package (FerretDB#3905)
Closes #3759.
- Loading branch information
Showing
19 changed files
with
1,739 additions
and
8 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,98 @@ | ||
| // Copyright 2021 FerretDB Inc. | ||
| // | ||
| // Licensed 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. | ||
|
|
||
| package bson2 | ||
|
|
||
| import ( | ||
| "errors" | ||
| "log/slog" | ||
|
|
||
| "github.com/FerretDB/FerretDB/internal/types" | ||
| "github.com/FerretDB/FerretDB/internal/util/iterator" | ||
| "github.com/FerretDB/FerretDB/internal/util/lazyerrors" | ||
| ) | ||
|
|
||
| // RawArray represents a BSON array in the binary encoded form. | ||
| // | ||
| // It generally references a part of a larger slice, not a copy. | ||
| type RawArray []byte | ||
|
|
||
| // LogValue implements slog.LogValuer interface. | ||
| func (arr *RawArray) LogValue() slog.Value { | ||
| return slogValue(arr) | ||
| } | ||
|
|
||
| // Array represents a BSON array in the (partially) decoded form. | ||
| type Array struct { | ||
| elements []any | ||
| } | ||
|
|
||
| // ConvertArray converts [*types.Array] to Array. | ||
| func ConvertArray(arr *types.Array) (*Array, error) { | ||
| iter := arr.Iterator() | ||
| defer iter.Close() | ||
|
|
||
| elements := make([]any, arr.Len()) | ||
|
|
||
| for { | ||
| i, v, err := iter.Next() | ||
| if err != nil { | ||
| if errors.Is(err, iterator.ErrIteratorDone) { | ||
| return &Array{ | ||
| elements: elements, | ||
| }, nil | ||
| } | ||
|
|
||
| return nil, lazyerrors.Error(err) | ||
| } | ||
|
|
||
| v, err = convertFromTypes(v) | ||
| if err != nil { | ||
| return nil, lazyerrors.Error(err) | ||
| } | ||
|
|
||
| elements[i] = v | ||
| } | ||
| } | ||
|
|
||
| // Convert converts Array to [*types.Array], decoding raw documents and arrays on the fly. | ||
| func (arr *Array) Convert() (*types.Array, error) { | ||
| values := make([]any, len(arr.elements)) | ||
|
|
||
| for i, f := range arr.elements { | ||
| v, err := convertToTypes(f) | ||
| if err != nil { | ||
| return nil, lazyerrors.Error(err) | ||
| } | ||
|
|
||
| values[i] = v | ||
| } | ||
|
|
||
| res, err := types.NewArray(values...) | ||
| if err != nil { | ||
| return nil, lazyerrors.Error(err) | ||
| } | ||
|
|
||
| return res, nil | ||
| } | ||
|
|
||
| // LogValue implements slog.LogValuer interface. | ||
| func (arr *Array) LogValue() slog.Value { | ||
| return slogValue(arr) | ||
| } | ||
|
|
||
| // check interfaces | ||
| var ( | ||
| _ slog.LogValuer = (*Array)(nil) | ||
| ) |
Oops, something went wrong.