1 // Custom options for defining:
2 // - Maximum size of string/bytes
3 // - Maximum number of elements in array
5 // These are used by nanopb to generate statically allocable structures
6 // for memory-limited environments.
9 import "google/protobuf/descriptor.proto";
11 option java_package = "fi.kapsi.koti.jpa.nanopb";
14 FT_DEFAULT = 0; // Automatically decide field type, generate static field if possible.
15 FT_CALLBACK = 1; // Always generate a callback field.
16 FT_POINTER = 4; // Always generate a dynamically allocated field.
17 FT_STATIC = 2; // Generate a static field or raise an exception if not possible.
18 FT_IGNORE = 3; // Ignore the field completely.
22 IS_DEFAULT = 0; // Default, 32/64bit based on type in .proto
29 // This is the inner options message, which basically defines options for
30 // a field. When it is used in message or file scope, it applies to all
32 message NanoPBOptions {
33 // Allocated size for 'bytes' and 'string' fields.
34 optional int32 max_size = 1;
36 // Allocated number of entries in arrays ('repeated' fields)
37 optional int32 max_count = 2;
39 // Size of integer fields. Can save some memory if you don't need
40 // full 32 bits for the value.
41 optional IntSize int_size = 7 [default = IS_DEFAULT];
43 // Force type of field (callback or static allocation)
44 optional FieldType type = 3 [default = FT_DEFAULT];
46 // Use long names for enums, i.e. EnumName_EnumValue.
47 optional bool long_names = 4 [default = true];
49 // Add 'packed' attribute to generated structs.
50 // Note: this cannot be used on CPUs that break on unaligned
51 // accesses to variables.
52 optional bool packed_struct = 5 [default = false];
55 optional bool skip_message = 6 [default = false];
57 // Generate oneof fields as normal optional fields instead of union.
58 optional bool no_unions = 8 [default = false];
60 // integer type tag for a message
61 optional uint32 msgid = 9;
64 // Extensions to protoc 'Descriptor' type in order to define options
65 // inside a .proto file.
67 // Protocol Buffers extension number registry
68 // --------------------------------
70 // Contact: Petteri Aimonen <jpa@kapsi.fi>
71 // Web site: http://kapsi.fi/~jpa/nanopb
72 // Extensions: 1010 (all types)
73 // --------------------------------
75 extend google.protobuf.FileOptions {
76 optional NanoPBOptions nanopb_fileopt = 1010;
79 extend google.protobuf.MessageOptions {
80 optional NanoPBOptions nanopb_msgopt = 1010;
83 extend google.protobuf.EnumOptions {
84 optional NanoPBOptions nanopb_enumopt = 1010;
87 extend google.protobuf.FieldOptions {
88 optional NanoPBOptions nanopb = 1010;