diff options
Diffstat (limited to 'vendor/github.com/gogo/protobuf/proto/extensions_gogo.go')
| -rw-r--r-- | vendor/github.com/gogo/protobuf/proto/extensions_gogo.go | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/vendor/github.com/gogo/protobuf/proto/extensions_gogo.go b/vendor/github.com/gogo/protobuf/proto/extensions_gogo.go index 53ebd8cca..6f1ae120e 100644 --- a/vendor/github.com/gogo/protobuf/proto/extensions_gogo.go +++ b/vendor/github.com/gogo/protobuf/proto/extensions_gogo.go @@ -154,6 +154,10 @@ func EncodeInternalExtension(m extendableProto, data []byte) (n int, err error) return EncodeExtensionMap(m.extensionsWrite(), data) } +func EncodeInternalExtensionBackwards(m extendableProto, data []byte) (n int, err error) { + return EncodeExtensionMapBackwards(m.extensionsWrite(), data) +} + func EncodeExtensionMap(m map[int32]Extension, data []byte) (n int, err error) { o := 0 for _, e := range m { @@ -169,6 +173,23 @@ func EncodeExtensionMap(m map[int32]Extension, data []byte) (n int, err error) { return o, nil } +func EncodeExtensionMapBackwards(m map[int32]Extension, data []byte) (n int, err error) { + o := 0 + end := len(data) + for _, e := range m { + if err := e.Encode(); err != nil { + return 0, err + } + n := copy(data[end-len(e.enc):], e.enc) + if n != len(e.enc) { + return 0, io.ErrShortBuffer + } + end -= n + o += n + } + return o, nil +} + func GetRawExtension(m map[int32]Extension, id int32) ([]byte, error) { e := m[id] if err := e.Encode(); err != nil { |