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message.go
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message.go
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package protobuf
import (
"errors"
"google.golang.org/protobuf/encoding/protowire"
"slices"
)
func (m *Message) Add(n Number, f func(*Message)) {
var v Message
f(&v)
*m = append(*m, Field{n, protowire.BytesType, v})
}
func (m *Message) AddBytes(n Number, v Bytes) {
*m = append(*m, Field{n, protowire.BytesType, v})
}
func (m *Message) AddFixed32(n Number, v Fixed32) {
*m = append(*m, Field{n, protowire.Fixed32Type, v})
}
func (m *Message) AddFixed64(n Number, v Fixed64) {
*m = append(*m, Field{n, protowire.Fixed64Type, v})
}
func (m *Message) AddVarint(n Number, v Varint) {
*m = append(*m, Field{n, protowire.VarintType, v})
}
func (m *Message) Consume(data []byte) error {
if len(data) == 0 {
return errors.New("unexpected EOF")
}
for len(data) >= 1 {
num, typ, length := protowire.ConsumeTag(data)
err := protowire.ParseError(length)
if err != nil {
return err
}
data = data[length:]
switch typ {
case protowire.BytesType:
v, length := protowire.ConsumeBytes(data)
err := protowire.ParseError(length)
if err != nil {
return err
}
v = slices.Clip(v)
m.AddBytes(num, v)
var embed Message
if embed.Consume(v) == nil {
*m = append(*m, Field{num, -protowire.BytesType, embed})
}
data = data[length:]
case protowire.Fixed32Type:
v, length := protowire.ConsumeFixed32(data)
err := protowire.ParseError(length)
if err != nil {
return err
}
m.AddFixed32(num, Fixed32(v))
data = data[length:]
case protowire.Fixed64Type:
v, length := protowire.ConsumeFixed64(data)
err := protowire.ParseError(length)
if err != nil {
return err
}
m.AddFixed64(num, Fixed64(v))
data = data[length:]
case protowire.VarintType:
v, length := protowire.ConsumeVarint(data)
err := protowire.ParseError(length)
if err != nil {
return err
}
m.AddVarint(num, Varint(v))
data = data[length:]
default:
return errors.New("cannot parse reserved wire type")
}
}
return nil
}
func (m Message) Get(n Number) (Message, bool) {
return get[Message](m, n)
}
func (m Message) GetBytes(n Number) (Bytes, bool) {
return get[Bytes](m, n)
}
func (m Message) GetFixed32(n Number) (Fixed32, bool) {
return get[Fixed32](m, n)
}
func (m Message) GetFixed64(n Number) (Fixed64, bool) {
return get[Fixed64](m, n)
}
func (m Message) GetVarint(n Number) (Varint, bool) {
return get[Varint](m, n)
}
func (m Message) Index(n Number) (int, Message) {
return index[Message](m, n)
}
func (m Message) IndexBytes(n Number) (int, Bytes) {
return index[Bytes](m, n)
}
func (m Message) IndexFixed32(n Number) (int, Fixed32) {
return index[Fixed32](m, n)
}
func (m Message) IndexFixed64(n Number) (int, Fixed64) {
return index[Fixed64](m, n)
}
func (m Message) IndexVarint(n Number) (int, Varint) {
return index[Varint](m, n)
}