map[messageName]extensionsByNumber RegisteredExtensions returns a map of the registered extensions for the provided protobuf message, indexed by the extension field number. Deprecated: Use protoregistry.GlobalTypes.RangeExtensionsByMessage instead.
(m Message)
| 290 | // |
| 291 | // Deprecated: Use protoregistry.GlobalTypes.RangeExtensionsByMessage instead. |
| 292 | func RegisteredExtensions(m Message) extensionsByNumber { |
| 293 | // Check whether the cache is stale. If the number of extensions for |
| 294 | // the given message differs, then it means that some extensions were |
| 295 | // recently registered upstream that we do not know about. |
| 296 | s := MessageName(m) |
| 297 | v, _ := extensionCache.Load(s) |
| 298 | xs, _ := v.(extensionsByNumber) |
| 299 | if protoregistry.GlobalTypes.NumExtensionsByMessage(protoreflect.FullName(s)) == len(xs) { |
| 300 | return xs // cache is up-to-date |
| 301 | } |
| 302 | |
| 303 | // Cache is stale, re-compute the extensions map. |
| 304 | xs = make(extensionsByNumber) |
| 305 | protoregistry.GlobalTypes.RangeExtensionsByMessage(protoreflect.FullName(s), func(xt protoreflect.ExtensionType) bool { |
| 306 | if xd, ok := xt.(*ExtensionDesc); ok { |
| 307 | xs[int32(xt.TypeDescriptor().Number())] = xd |
| 308 | } else { |
| 309 | // TODO: This implies that the protoreflect.ExtensionType is a |
| 310 | // custom type not generated by protoc-gen-go. We could try and |
| 311 | // convert the type to an ExtensionDesc. |
| 312 | } |
| 313 | return true |
| 314 | }) |
| 315 | extensionCache.Store(s, xs) |
| 316 | return xs |
| 317 | } |