+
+ // Force type of field (callback or static allocation)
+ optional FieldType type = 3 [default = FT_DEFAULT];
+
+ // Use long names for enums, i.e. EnumName_EnumValue.
+ optional bool long_names = 4 [default = true];
+
+ // Add 'packed' attribute to generated structs.
+ // Note: this cannot be used on CPUs that break on unaligned
+ // accesses to variables.
+ optional bool packed_struct = 5 [default = false];
+}
+
+// Extensions to protoc 'Descriptor' type in order to define options
+// inside a .proto file.
+//
+// Protocol Buffers extension number registry
+// --------------------------------
+// Project: Nanopb
+// Contact: Petteri Aimonen <jpa@kapsi.fi>
+// Web site: http://kapsi.fi/~jpa/nanopb
+// Extensions: 1010 (all types)
+// --------------------------------
+
+extend google.protobuf.FileOptions {
+ optional NanoPBOptions nanopb_fileopt = 1010;
+}
+
+extend google.protobuf.MessageOptions {
+ optional NanoPBOptions nanopb_msgopt = 1010;
+}
+
+extend google.protobuf.EnumOptions {
+ optional NanoPBOptions nanopb_enumopt = 1010;