mirror of
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* update code.gitea.io/sdk/gitea v0.13.1 -> v0.13.2 * update github.com/go-swagger/go-swagger v0.25.0 -> v0.26.0 * update github.com/google/uuid v1.1.2 -> v1.2.0 * update github.com/klauspost/compress v1.11.3 -> v1.11.7 * update github.com/lib/pq 083382b7e6fc -> v1.9.0 * update github.com/markbates/goth v1.65.0 -> v1.66.1 * update github.com/mattn/go-sqlite3 v1.14.4 -> v1.14.6 * update github.com/mgechev/revive 246eac737dc7 -> v1.0.3 * update github.com/minio/minio-go/v7 v7.0.6 -> v7.0.7 * update github.com/niklasfasching/go-org v1.3.2 -> v1.4.0 * update github.com/olivere/elastic/v7 v7.0.21 -> v7.0.22 * update github.com/pquerna/otp v1.2.0 -> v1.3.0 * update github.com/xanzy/go-gitlab v0.39.0 -> v0.42.0 * update github.com/yuin/goldmark v1.2.1 -> v1.3.1
200 lines
5.1 KiB
Go
Vendored
200 lines
5.1 KiB
Go
Vendored
// Copyright (C) MongoDB, Inc. 2017-present.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
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package bsoncodec
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import (
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"fmt"
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"reflect"
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"go.mongodb.org/mongo-driver/bson/bsonoptions"
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"go.mongodb.org/mongo-driver/bson/bsonrw"
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"go.mongodb.org/mongo-driver/bson/bsontype"
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"go.mongodb.org/mongo-driver/bson/primitive"
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)
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var defaultSliceCodec = NewSliceCodec()
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// SliceCodec is the Codec used for slice values.
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type SliceCodec struct {
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EncodeNilAsEmpty bool
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}
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var _ ValueCodec = &MapCodec{}
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// NewSliceCodec returns a MapCodec with options opts.
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func NewSliceCodec(opts ...*bsonoptions.SliceCodecOptions) *SliceCodec {
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sliceOpt := bsonoptions.MergeSliceCodecOptions(opts...)
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codec := SliceCodec{}
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if sliceOpt.EncodeNilAsEmpty != nil {
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codec.EncodeNilAsEmpty = *sliceOpt.EncodeNilAsEmpty
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}
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return &codec
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}
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// EncodeValue is the ValueEncoder for slice types.
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func (sc SliceCodec) EncodeValue(ec EncodeContext, vw bsonrw.ValueWriter, val reflect.Value) error {
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if !val.IsValid() || val.Kind() != reflect.Slice {
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return ValueEncoderError{Name: "SliceEncodeValue", Kinds: []reflect.Kind{reflect.Slice}, Received: val}
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}
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if val.IsNil() && !sc.EncodeNilAsEmpty {
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return vw.WriteNull()
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}
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// If we have a []byte we want to treat it as a binary instead of as an array.
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if val.Type().Elem() == tByte {
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var byteSlice []byte
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for idx := 0; idx < val.Len(); idx++ {
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byteSlice = append(byteSlice, val.Index(idx).Interface().(byte))
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}
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return vw.WriteBinary(byteSlice)
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}
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// If we have a []primitive.E we want to treat it as a document instead of as an array.
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if val.Type().ConvertibleTo(tD) {
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d := val.Convert(tD).Interface().(primitive.D)
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dw, err := vw.WriteDocument()
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if err != nil {
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return err
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}
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for _, e := range d {
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err = encodeElement(ec, dw, e)
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if err != nil {
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return err
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}
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}
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return dw.WriteDocumentEnd()
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}
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aw, err := vw.WriteArray()
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if err != nil {
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return err
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}
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elemType := val.Type().Elem()
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encoder, err := ec.LookupEncoder(elemType)
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if err != nil && elemType.Kind() != reflect.Interface {
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return err
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}
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for idx := 0; idx < val.Len(); idx++ {
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currEncoder, currVal, lookupErr := defaultValueEncoders.lookupElementEncoder(ec, encoder, val.Index(idx))
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if lookupErr != nil && lookupErr != errInvalidValue {
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return lookupErr
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}
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vw, err := aw.WriteArrayElement()
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if err != nil {
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return err
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}
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if lookupErr == errInvalidValue {
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err = vw.WriteNull()
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if err != nil {
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return err
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}
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continue
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}
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err = currEncoder.EncodeValue(ec, vw, currVal)
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if err != nil {
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return err
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}
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}
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return aw.WriteArrayEnd()
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}
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// DecodeValue is the ValueDecoder for slice types.
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func (sc *SliceCodec) DecodeValue(dc DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
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if !val.CanSet() || val.Kind() != reflect.Slice {
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return ValueDecoderError{Name: "SliceDecodeValue", Kinds: []reflect.Kind{reflect.Slice}, Received: val}
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}
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switch vrType := vr.Type(); vrType {
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case bsontype.Array:
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case bsontype.Null:
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val.Set(reflect.Zero(val.Type()))
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return vr.ReadNull()
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case bsontype.Undefined:
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val.Set(reflect.Zero(val.Type()))
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return vr.ReadUndefined()
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case bsontype.Type(0), bsontype.EmbeddedDocument:
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if val.Type().Elem() != tE {
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return fmt.Errorf("cannot decode document into %s", val.Type())
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}
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case bsontype.Binary:
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if val.Type().Elem() != tByte {
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return fmt.Errorf("SliceDecodeValue can only decode a binary into a byte array, got %v", vrType)
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}
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data, subtype, err := vr.ReadBinary()
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if err != nil {
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return err
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}
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if subtype != bsontype.BinaryGeneric && subtype != bsontype.BinaryBinaryOld {
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return fmt.Errorf("SliceDecodeValue can only be used to decode subtype 0x00 or 0x02 for %s, got %v", bsontype.Binary, subtype)
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}
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if val.IsNil() {
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val.Set(reflect.MakeSlice(val.Type(), 0, len(data)))
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}
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val.SetLen(0)
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for _, elem := range data {
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val.Set(reflect.Append(val, reflect.ValueOf(elem)))
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}
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return nil
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case bsontype.String:
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if sliceType := val.Type().Elem(); sliceType != tByte {
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return fmt.Errorf("SliceDecodeValue can only decode a string into a byte array, got %v", sliceType)
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}
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str, err := vr.ReadString()
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if err != nil {
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return err
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}
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byteStr := []byte(str)
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if val.IsNil() {
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val.Set(reflect.MakeSlice(val.Type(), 0, len(byteStr)))
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}
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val.SetLen(0)
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for _, elem := range byteStr {
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val.Set(reflect.Append(val, reflect.ValueOf(elem)))
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}
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return nil
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default:
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return fmt.Errorf("cannot decode %v into a slice", vrType)
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}
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var elemsFunc func(DecodeContext, bsonrw.ValueReader, reflect.Value) ([]reflect.Value, error)
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switch val.Type().Elem() {
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case tE:
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dc.Ancestor = val.Type()
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elemsFunc = defaultValueDecoders.decodeD
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default:
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elemsFunc = defaultValueDecoders.decodeDefault
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}
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elems, err := elemsFunc(dc, vr, val)
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if err != nil {
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return err
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}
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if val.IsNil() {
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val.Set(reflect.MakeSlice(val.Type(), 0, len(elems)))
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}
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val.SetLen(0)
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val.Set(reflect.Append(val, elems...))
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return nil
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}
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