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// 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 (
"errors"
"fmt"
"reflect"
"go.mongodb.org/mongo-driver/bson/bsoncodec"
"go.mongodb.org/mongo-driver/bson/bsonrw"
)
var tRawValue = reflect.TypeOf(RawValue{})
var tRaw = reflect.TypeOf(Raw(nil))
var primitiveCodecs PrimitiveCodecs
// PrimitiveCodecs is a namespace for all of the default bsoncodec.Codecs for the primitive types
// defined in this package.
//
// Deprecated: Use bson.NewRegistry to get a registry with all primitive encoders and decoders
// registered.
type PrimitiveCodecs struct{}
// RegisterPrimitiveCodecs will register the encode and decode methods attached to PrimitiveCodecs
// with the provided RegistryBuilder. if rb is nil, a new empty RegistryBuilder will be created.
//
// Deprecated: Use bson.NewRegistry to get a registry with all primitive encoders and decoders
// registered.
func (pc PrimitiveCodecs) RegisterPrimitiveCodecs(rb *bsoncodec.RegistryBuilder) {
if rb == nil {
panic(errors.New("argument to RegisterPrimitiveCodecs must not be nil"))
}
rb.
RegisterTypeEncoder(tRawValue, bsoncodec.ValueEncoderFunc(pc.RawValueEncodeValue)).
RegisterTypeEncoder(tRaw, bsoncodec.ValueEncoderFunc(pc.RawEncodeValue)).
RegisterTypeDecoder(tRawValue, bsoncodec.ValueDecoderFunc(pc.RawValueDecodeValue)).
RegisterTypeDecoder(tRaw, bsoncodec.ValueDecoderFunc(pc.RawDecodeValue))
}
// RawValueEncodeValue is the ValueEncoderFunc for RawValue.
//
// If the RawValue's Type is "invalid" and the RawValue's Value is not empty or
// nil, then this method will return an error.
//
// Deprecated: Use bson.NewRegistry to get a registry with all primitive
// encoders and decoders registered.
func (PrimitiveCodecs) RawValueEncodeValue(_ bsoncodec.EncodeContext, vw bsonrw.ValueWriter, val reflect.Value) error {
if !val.IsValid() || val.Type() != tRawValue {
return bsoncodec.ValueEncoderError{
Name: "RawValueEncodeValue",
Types: []reflect.Type{tRawValue},
Received: val,
}
}
rawvalue := val.Interface().(RawValue)
if !rawvalue.Type.IsValid() {
return fmt.Errorf("the RawValue Type specifies an invalid BSON type: %#x", byte(rawvalue.Type))
}
return bsonrw.Copier{}.CopyValueFromBytes(vw, rawvalue.Type, rawvalue.Value)
}
// RawValueDecodeValue is the ValueDecoderFunc for RawValue.
//
// Deprecated: Use bson.NewRegistry to get a registry with all primitive encoders and decoders
// registered.
func (PrimitiveCodecs) RawValueDecodeValue(_ bsoncodec.DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
if !val.CanSet() || val.Type() != tRawValue {
return bsoncodec.ValueDecoderError{Name: "RawValueDecodeValue", Types: []reflect.Type{tRawValue}, Received: val}
}
t, value, err := bsonrw.Copier{}.CopyValueToBytes(vr)
if err != nil {
return err
}
val.Set(reflect.ValueOf(RawValue{Type: t, Value: value}))
return nil
}
// RawEncodeValue is the ValueEncoderFunc for Reader.
//
// Deprecated: Use bson.NewRegistry to get a registry with all primitive encoders and decoders
// registered.
func (PrimitiveCodecs) RawEncodeValue(_ bsoncodec.EncodeContext, vw bsonrw.ValueWriter, val reflect.Value) error {
if !val.IsValid() || val.Type() != tRaw {
return bsoncodec.ValueEncoderError{Name: "RawEncodeValue", Types: []reflect.Type{tRaw}, Received: val}
}
rdr := val.Interface().(Raw)
return bsonrw.Copier{}.CopyDocumentFromBytes(vw, rdr)
}
// RawDecodeValue is the ValueDecoderFunc for Reader.
//
// Deprecated: Use bson.NewRegistry to get a registry with all primitive encoders and decoders
// registered.
func (PrimitiveCodecs) RawDecodeValue(_ bsoncodec.DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
if !val.CanSet() || val.Type() != tRaw {
return bsoncodec.ValueDecoderError{Name: "RawDecodeValue", Types: []reflect.Type{tRaw}, Received: val}
}
if val.IsNil() {
val.Set(reflect.MakeSlice(val.Type(), 0, 0))
}
val.SetLen(0)
rdr, err := bsonrw.Copier{}.AppendDocumentBytes(val.Interface().(Raw), vr)
val.Set(reflect.ValueOf(rdr))
return err
}