Updates encoding specs and adds link to information about varint

8 years ago · f29e09f7f5
parent d736ad2373
commit f29e09f7f5
1 changed files with 4 additions and 0 deletions
--- a/stats/stats_context.proto
+++ b/stats/stats_context.proto
@ -27,5 +27,9 @@ message StatsContext {
  // All implementations must honor these specs:
  //  * The num_tags is represented using varint.
  //  * The key/value lengths are represented using varint.
+  //  * All key/values must be US-ASCII.
+  //
+  // For details about varint, see:
+  //  https://developers.google.com/protocol-buffers/docs/encoding#varints
  bytes tags = 1;
 }