diff options
Diffstat (limited to 'vendor/github.com/golang/protobuf/proto/table_marshal.go')
-rw-r--r-- | vendor/github.com/golang/protobuf/proto/table_marshal.go | 45 |
1 files changed, 27 insertions, 18 deletions
diff --git a/vendor/github.com/golang/protobuf/proto/table_marshal.go b/vendor/github.com/golang/protobuf/proto/table_marshal.go index b1679449..5cb11fa9 100644 --- a/vendor/github.com/golang/protobuf/proto/table_marshal.go +++ b/vendor/github.com/golang/protobuf/proto/table_marshal.go @@ -87,6 +87,7 @@ type marshalElemInfo struct { sizer sizer marshaler marshaler isptr bool // elem is pointer typed, thus interface of this type is a direct interface (extension only) + deref bool // dereference the pointer before operating on it; implies isptr } var ( @@ -320,8 +321,11 @@ func (u *marshalInfo) computeMarshalInfo() { // get oneof implementers var oneofImplementers []interface{} - if m, ok := reflect.Zero(reflect.PtrTo(t)).Interface().(oneofMessage); ok { + switch m := reflect.Zero(reflect.PtrTo(t)).Interface().(type) { + case oneofFuncsIface: _, _, _, oneofImplementers = m.XXX_OneofFuncs() + case oneofWrappersIface: + oneofImplementers = m.XXX_OneofWrappers() } n := t.NumField() @@ -407,13 +411,22 @@ func (u *marshalInfo) getExtElemInfo(desc *ExtensionDesc) *marshalElemInfo { panic("tag is not an integer") } wt := wiretype(tags[0]) + if t.Kind() == reflect.Ptr && t.Elem().Kind() != reflect.Struct { + t = t.Elem() + } sizer, marshaler := typeMarshaler(t, tags, false, false) + var deref bool + if t.Kind() == reflect.Slice && t.Elem().Kind() != reflect.Uint8 { + t = reflect.PtrTo(t) + deref = true + } e = &marshalElemInfo{ wiretag: uint64(tag)<<3 | wt, tagsize: SizeVarint(uint64(tag) << 3), sizer: sizer, marshaler: marshaler, isptr: t.Kind() == reflect.Ptr, + deref: deref, } // update cache @@ -448,7 +461,7 @@ func (fi *marshalFieldInfo) computeMarshalFieldInfo(f *reflect.StructField) { func (fi *marshalFieldInfo) computeOneofFieldInfo(f *reflect.StructField, oneofImplementers []interface{}) { fi.field = toField(f) - fi.wiretag = 1<<31 - 1 // Use a large tag number, make oneofs sorted at the end. This tag will not appear on the wire. + fi.wiretag = math.MaxInt32 // Use a large tag number, make oneofs sorted at the end. This tag will not appear on the wire. fi.isPointer = true fi.sizer, fi.marshaler = makeOneOfMarshaler(fi, f) fi.oneofElems = make(map[reflect.Type]*marshalElemInfo) @@ -476,10 +489,6 @@ func (fi *marshalFieldInfo) computeOneofFieldInfo(f *reflect.StructField, oneofI } } -type oneofMessage interface { - XXX_OneofFuncs() (func(Message, *Buffer) error, func(Message, int, int, *Buffer) (bool, error), func(Message) int, []interface{}) -} - // wiretype returns the wire encoding of the type. func wiretype(encoding string) uint64 { switch encoding { @@ -2310,8 +2319,8 @@ func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) { for _, k := range m.MapKeys() { ki := k.Interface() vi := m.MapIndex(k).Interface() - kaddr := toAddrPointer(&ki, false) // pointer to key - vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value + kaddr := toAddrPointer(&ki, false, false) // pointer to key + vaddr := toAddrPointer(&vi, valIsPtr, false) // pointer to value siz := keySizer(kaddr, 1) + valSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1) n += siz + SizeVarint(uint64(siz)) + tagsize } @@ -2329,8 +2338,8 @@ func makeMapMarshaler(f *reflect.StructField) (sizer, marshaler) { for _, k := range keys { ki := k.Interface() vi := m.MapIndex(k).Interface() - kaddr := toAddrPointer(&ki, false) // pointer to key - vaddr := toAddrPointer(&vi, valIsPtr) // pointer to value + kaddr := toAddrPointer(&ki, false, false) // pointer to key + vaddr := toAddrPointer(&vi, valIsPtr, false) // pointer to value b = appendVarint(b, tag) siz := keySizer(kaddr, 1) + valCachedSizer(vaddr, 1) // tag of key = 1 (size=1), tag of val = 2 (size=1) b = appendVarint(b, uint64(siz)) @@ -2399,7 +2408,7 @@ func (u *marshalInfo) sizeExtensions(ext *XXX_InternalExtensions) int { // the last time this function was called. ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) n += ei.sizer(p, ei.tagsize) } mu.Unlock() @@ -2434,7 +2443,7 @@ func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, ei.wiretag, deterministic) if !nerr.Merge(err) { return b, err @@ -2465,7 +2474,7 @@ func (u *marshalInfo) appendExtensions(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, ei.wiretag, deterministic) if !nerr.Merge(err) { return b, err @@ -2510,7 +2519,7 @@ func (u *marshalInfo) sizeMessageSet(ext *XXX_InternalExtensions) int { ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) n += ei.sizer(p, 1) // message, tag = 3 (size=1) } mu.Unlock() @@ -2553,7 +2562,7 @@ func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic) if !nerr.Merge(err) { return b, err @@ -2591,7 +2600,7 @@ func (u *marshalInfo) appendMessageSet(b []byte, ext *XXX_InternalExtensions, de ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, 3<<3|WireBytes, deterministic) b = append(b, 1<<3|WireEndGroup) if !nerr.Merge(err) { @@ -2621,7 +2630,7 @@ func (u *marshalInfo) sizeV1Extensions(m map[int32]Extension) int { ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) n += ei.sizer(p, ei.tagsize) } return n @@ -2656,7 +2665,7 @@ func (u *marshalInfo) appendV1Extensions(b []byte, m map[int32]Extension, determ ei := u.getExtElemInfo(e.desc) v := e.value - p := toAddrPointer(&v, ei.isptr) + p := toAddrPointer(&v, ei.isptr, ei.deref) b, err = ei.marshaler(b, p, ei.wiretag, deterministic) if !nerr.Merge(err) { return b, err |