syntax = "proto3";
// package name placeholder

message SubMessage {
    string substuff1 = 1;
    int32 substuff2 = 2;
    fixed32 substuff3 = 3;
}

message EmptyMessage {

}

enum HugeEnum {
    HE_Zero = 0;
    Negative = -2147483647; /* protoc doesn't accept -2147483648 here */
    Positive =  2147483647;
}

message Limits {
    int32      int32_min  =  1;
    int32      int32_max  =  2;
    uint32     uint32_min =  3;
    uint32     uint32_max =  4;
    int64      int64_min  =  5;
    int64      int64_max  =  6;
    uint64     uint64_min =  7;
    uint64     uint64_max =  8;
    HugeEnum   enum_min   =  9;
    HugeEnum   enum_max   = 10;
}

enum MyEnum {
    Zero = 0;
    First = 1;
    Second = 2;
    Truth = 42;
}

message AllTypes {
    int32      sng_int32   = 1;
    int64      sng_int64   = 2;
    uint32     sng_uint32  = 3;
    uint64     sng_uint64  = 4;
    sint32     sng_sint32  = 5;
    sint64     sng_sint64  = 6;
    bool       sng_bool    = 7;
    
    fixed32    sng_fixed32 = 8;
    sfixed32   sng_sfixed32= 9;
    float      sng_float   = 10;
    
    fixed64    sng_fixed64 = 11;
    sfixed64   sng_sfixed64= 12;
    double     sng_double  = 13;
    
    string     sng_string  = 14;
    bytes      sng_bytes   = 15;
    SubMessage sng_submsg  = 16;
    MyEnum     sng_enum    = 17;
    EmptyMessage sng_emptymsg = 18;
    bytes      sng_fbytes  = 19;

    repeated int32      rep_int32   = 21 [packed = true];
    repeated int64      rep_int64   = 22 [packed = true];
    repeated uint32     rep_uint32  = 23 [packed = true];
    repeated uint64     rep_uint64  = 24 [packed = true];
    repeated sint32     rep_sint32  = 25 [packed = true];
    repeated sint64     rep_sint64  = 26 [packed = true];
    repeated bool       rep_bool    = 27 [packed = true];
    
    repeated fixed32    rep_fixed32 = 28 [packed = true];
    repeated sfixed32   rep_sfixed32= 29 [packed = true];
    repeated float      rep_float   = 30 [packed = true];
    
    repeated fixed64    rep_fixed64 = 31 [packed = true];
    repeated sfixed64   rep_sfixed64= 32 [packed = true];
    repeated double     rep_double  = 33 [packed = true];
    
    repeated string     rep_string  = 34;
    repeated bytes      rep_bytes   = 35;
    repeated SubMessage rep_submsg  = 36;
    repeated MyEnum     rep_enum    = 37 [packed = true];
    repeated EmptyMessage rep_emptymsg = 38;
    repeated bytes      rep_fbytes  = 39;
    
    oneof oneof
    {
        SubMessage oneof_msg1 = 59;
        EmptyMessage oneof_msg2 = 60;
    }
    
    // Check that extreme integer values are handled correctly
    Limits     req_limits = 98;

    // Just to make sure that the size of the fields has been calculated
    // properly, i.e. otherwise a bug in last field might not be detected.
    int32      end = 99;
}