| // This is a transitional file, to provide parallel support between the old |
| // nanopb.proto and new options.proto files. Eventually nanopb.proto will |
| // be left only for legacy code, but for now the generator is still also |
| // using it. However, your new code can start using this file already now. |
| // See pull request #241 for details: |
| // https://github.com/nanopb/nanopb/pull/241 |
| |
| // Custom options for defining: |
| // - Maximum size of string/bytes |
| // - Maximum number of elements in array |
| // |
| // These are used by nanopb to generate statically allocable structures |
| // for memory-limited environments. |
| |
| syntax = "proto2"; |
| import "google/protobuf/descriptor.proto"; |
| |
| package nanopb; |
| option java_package = "fi.kapsi.koti.jpa.nanopb"; |
| |
| enum FieldType { |
| FT_DEFAULT = 0; // Automatically decide field type, generate static field if possible. |
| FT_CALLBACK = 1; // Always generate a callback field. |
| FT_POINTER = 4; // Always generate a dynamically allocated field. |
| FT_STATIC = 2; // Generate a static field or raise an exception if not possible. |
| FT_IGNORE = 3; // Ignore the field completely. |
| FT_INLINE = 5; // Legacy option, use the separate 'fixed_length' option instead |
| } |
| |
| enum IntSize { |
| IS_DEFAULT = 0; // Default, 32/64bit based on type in .proto |
| IS_8 = 8; |
| IS_16 = 16; |
| IS_32 = 32; |
| IS_64 = 64; |
| } |
| |
| // This is the inner options message, which basically defines options for |
| // a field. When it is used in message or file scope, it applies to all |
| // fields. |
| message Options { |
| // Allocated size for 'bytes' and 'string' fields. |
| // For string fields, this should include the space for null terminator. |
| optional int32 max_size = 1; |
| |
| // Maximum length for 'string' fields. Setting this is equivalent |
| // to setting max_size to a value of length+1. |
| optional int32 max_length = 14; |
| |
| // Allocated number of entries in arrays ('repeated' fields) |
| optional int32 max_count = 2; |
| |
| // Size of integer fields. Can save some memory if you don't need |
| // full 32 bits for the value. |
| optional IntSize int_size = 7 [default = IS_DEFAULT]; |
| |
| // 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]; |
| |
| // Add 'packed' attribute to generated enums. |
| optional bool packed_enum = 10 [default = false]; |
| |
| // Skip this message |
| optional bool skip_message = 6 [default = false]; |
| |
| // Generate oneof fields as normal optional fields instead of union. |
| optional bool no_unions = 8 [default = false]; |
| |
| // integer type tag for a message |
| optional uint32 msgid = 9; |
| |
| // decode oneof as anonymous union |
| optional bool anonymous_oneof = 11 [default = false]; |
| |
| // Proto3 singular field does not generate a "has_" flag |
| optional bool proto3 = 12 [default = false]; |
| |
| // Generate an enum->string mapping function (can take up lots of space). |
| optional bool enum_to_string = 13 [default = false]; |
| |
| // Generate bytes arrays with fixed length |
| optional bool fixed_length = 15 [default = false]; |
| |
| // Generate repeated field with fixed count |
| optional bool fixed_count = 16 [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 Options fileopt = 1010; |
| } |
| |
| extend google.protobuf.MessageOptions { |
| optional Options msgopt = 1010; |
| } |
| |
| extend google.protobuf.EnumOptions { |
| optional Options enumopt = 1010; |
| } |
| |
| extend google.protobuf.FieldOptions { |
| optional Options fieldopt = 1010; |
| } |
| |
| |