mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 18:12:46 +00:00
178 lines
6.4 KiB
Go
178 lines
6.4 KiB
Go
// Copyright (C) MongoDB, Inc. 2017-present.
|
|
//
|
|
// 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
|
|
|
|
package bson
|
|
|
|
import (
|
|
"bytes"
|
|
|
|
"go.mongodb.org/mongo-driver/bson/bsoncodec"
|
|
"go.mongodb.org/mongo-driver/bson/bsonrw"
|
|
"go.mongodb.org/mongo-driver/bson/bsontype"
|
|
)
|
|
|
|
// Unmarshaler is the interface implemented by types that can unmarshal a BSON
|
|
// document representation of themselves. The input can be assumed to be a valid
|
|
// encoding of a BSON document. UnmarshalBSON must copy the JSON data if it
|
|
// wishes to retain the data after returning.
|
|
//
|
|
// Unmarshaler is only used to unmarshal full BSON documents. To create custom
|
|
// BSON unmarshaling behavior for individual values in a BSON document,
|
|
// implement the ValueUnmarshaler interface instead.
|
|
type Unmarshaler interface {
|
|
UnmarshalBSON([]byte) error
|
|
}
|
|
|
|
// ValueUnmarshaler is the interface implemented by types that can unmarshal a
|
|
// BSON value representation of themselves. The input can be assumed to be a
|
|
// valid encoding of a BSON value. UnmarshalBSONValue must copy the BSON value
|
|
// bytes if it wishes to retain the data after returning.
|
|
//
|
|
// ValueUnmarshaler is only used to unmarshal individual values in a BSON
|
|
// document. To create custom BSON unmarshaling behavior for an entire BSON
|
|
// document, implement the Unmarshaler interface instead.
|
|
type ValueUnmarshaler interface {
|
|
UnmarshalBSONValue(bsontype.Type, []byte) error
|
|
}
|
|
|
|
// Unmarshal parses the BSON-encoded data and stores the result in the value
|
|
// pointed to by val. If val is nil or not a pointer, Unmarshal returns
|
|
// InvalidUnmarshalError.
|
|
func Unmarshal(data []byte, val interface{}) error {
|
|
return UnmarshalWithRegistry(DefaultRegistry, data, val)
|
|
}
|
|
|
|
// UnmarshalWithRegistry parses the BSON-encoded data using Registry r and
|
|
// stores the result in the value pointed to by val. If val is nil or not
|
|
// a pointer, UnmarshalWithRegistry returns InvalidUnmarshalError.
|
|
//
|
|
// Deprecated: Use [NewDecoder] and specify the Registry by calling [Decoder.SetRegistry] instead:
|
|
//
|
|
// dec, err := bson.NewDecoder(bsonrw.NewBSONDocumentReader(data))
|
|
// if err != nil {
|
|
// panic(err)
|
|
// }
|
|
// dec.SetRegistry(reg)
|
|
//
|
|
// See [Decoder] for more examples.
|
|
func UnmarshalWithRegistry(r *bsoncodec.Registry, data []byte, val interface{}) error {
|
|
vr := bsonrw.NewBSONDocumentReader(data)
|
|
return unmarshalFromReader(bsoncodec.DecodeContext{Registry: r}, vr, val)
|
|
}
|
|
|
|
// UnmarshalWithContext parses the BSON-encoded data using DecodeContext dc and
|
|
// stores the result in the value pointed to by val. If val is nil or not
|
|
// a pointer, UnmarshalWithRegistry returns InvalidUnmarshalError.
|
|
//
|
|
// Deprecated: Use [NewDecoder] and use the Decoder configuration methods to set the desired unmarshal
|
|
// behavior instead:
|
|
//
|
|
// dec, err := bson.NewDecoder(bsonrw.NewBSONDocumentReader(data))
|
|
// if err != nil {
|
|
// panic(err)
|
|
// }
|
|
// dec.DefaultDocumentM()
|
|
//
|
|
// See [Decoder] for more examples.
|
|
func UnmarshalWithContext(dc bsoncodec.DecodeContext, data []byte, val interface{}) error {
|
|
vr := bsonrw.NewBSONDocumentReader(data)
|
|
return unmarshalFromReader(dc, vr, val)
|
|
}
|
|
|
|
// UnmarshalValue parses the BSON value of type t with bson.DefaultRegistry and
|
|
// stores the result in the value pointed to by val. If val is nil or not a pointer,
|
|
// UnmarshalValue returns an error.
|
|
func UnmarshalValue(t bsontype.Type, data []byte, val interface{}) error {
|
|
return UnmarshalValueWithRegistry(DefaultRegistry, t, data, val)
|
|
}
|
|
|
|
// UnmarshalValueWithRegistry parses the BSON value of type t with registry r and
|
|
// stores the result in the value pointed to by val. If val is nil or not a pointer,
|
|
// UnmarshalValue returns an error.
|
|
//
|
|
// Deprecated: Using a custom registry to unmarshal individual BSON values will not be supported in
|
|
// Go Driver 2.0.
|
|
func UnmarshalValueWithRegistry(r *bsoncodec.Registry, t bsontype.Type, data []byte, val interface{}) error {
|
|
vr := bsonrw.NewBSONValueReader(t, data)
|
|
return unmarshalFromReader(bsoncodec.DecodeContext{Registry: r}, vr, val)
|
|
}
|
|
|
|
// UnmarshalExtJSON parses the extended JSON-encoded data and stores the result
|
|
// in the value pointed to by val. If val is nil or not a pointer, Unmarshal
|
|
// returns InvalidUnmarshalError.
|
|
func UnmarshalExtJSON(data []byte, canonical bool, val interface{}) error {
|
|
return UnmarshalExtJSONWithRegistry(DefaultRegistry, data, canonical, val)
|
|
}
|
|
|
|
// UnmarshalExtJSONWithRegistry parses the extended JSON-encoded data using
|
|
// Registry r and stores the result in the value pointed to by val. If val is
|
|
// nil or not a pointer, UnmarshalWithRegistry returns InvalidUnmarshalError.
|
|
//
|
|
// Deprecated: Use [NewDecoder] and specify the Registry by calling [Decoder.SetRegistry] instead:
|
|
//
|
|
// vr, err := bsonrw.NewExtJSONValueReader(bytes.NewReader(data), true)
|
|
// if err != nil {
|
|
// panic(err)
|
|
// }
|
|
// dec, err := bson.NewDecoder(vr)
|
|
// if err != nil {
|
|
// panic(err)
|
|
// }
|
|
// dec.SetRegistry(reg)
|
|
//
|
|
// See [Decoder] for more examples.
|
|
func UnmarshalExtJSONWithRegistry(r *bsoncodec.Registry, data []byte, canonical bool, val interface{}) error {
|
|
ejvr, err := bsonrw.NewExtJSONValueReader(bytes.NewReader(data), canonical)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return unmarshalFromReader(bsoncodec.DecodeContext{Registry: r}, ejvr, val)
|
|
}
|
|
|
|
// UnmarshalExtJSONWithContext parses the extended JSON-encoded data using
|
|
// DecodeContext dc and stores the result in the value pointed to by val. If val is
|
|
// nil or not a pointer, UnmarshalWithRegistry returns InvalidUnmarshalError.
|
|
//
|
|
// Deprecated: Use [NewDecoder] and use the Decoder configuration methods to set the desired unmarshal
|
|
// behavior instead:
|
|
//
|
|
// vr, err := bsonrw.NewExtJSONValueReader(bytes.NewReader(data), true)
|
|
// if err != nil {
|
|
// panic(err)
|
|
// }
|
|
// dec, err := bson.NewDecoder(vr)
|
|
// if err != nil {
|
|
// panic(err)
|
|
// }
|
|
// dec.DefaultDocumentM()
|
|
//
|
|
// See [Decoder] for more examples.
|
|
func UnmarshalExtJSONWithContext(dc bsoncodec.DecodeContext, data []byte, canonical bool, val interface{}) error {
|
|
ejvr, err := bsonrw.NewExtJSONValueReader(bytes.NewReader(data), canonical)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return unmarshalFromReader(dc, ejvr, val)
|
|
}
|
|
|
|
func unmarshalFromReader(dc bsoncodec.DecodeContext, vr bsonrw.ValueReader, val interface{}) error {
|
|
dec := decPool.Get().(*Decoder)
|
|
defer decPool.Put(dec)
|
|
|
|
err := dec.Reset(vr)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
err = dec.SetContext(dc)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return dec.Decode(val)
|
|
}
|