Why does protoc convert properties name with 'Url' suffix to 'URL' when converting Objective-C?

[Cedric Diggory]

eg

message User { string logoUrl } @interface User @property logoURL; @end

I see that you have a kUpperSegmentsList in src/google/protobuf/compiler/objectivec/objectivec_helpers.cc. What is the use of this? It causes the url in the property name to be converted to all-caps.

[thom...@google.com]

The protos style guide for fields: https://developers.google.com/protocol-buffers/docs/style#message_and_field_names

> Use underscore_separated_names for field names (including oneof field and extension names) – for example, song_name

To make the generated ObjC code a better fit for ObjC conventions, it attempts break things apart into the segments and apply Apple's naming guidelines when building the names.  Those include turning some acronym into allcaps.