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-rw-r--r--docs/reference.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/docs/reference.rst b/docs/reference.rst
index e16500ad..296bc78c 100644
--- a/docs/reference.rst
+++ b/docs/reference.rst
@@ -91,6 +91,10 @@ packed_struct Make the generated structures packed.
NOTE: This cannot be used on CPUs that break
on unaligned accesses to variables.
skip_message Skip the whole message from generation.
+no_unions Generate 'oneof' fields as optional fields
+ instead of C unions.
+msgid Specifies a unique id for this message type.
+ Can be used by user code as an identifier.
============================ ================================================
These options can be defined for the .proto files before they are converted