/*
 * Copyright (c) Huawei Technologies Co., Ltd. 2023. All rights reserved.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

syntax = "proto3";

option optimize_for = LITE_RUNTIME;

enum NUM {
    ZERO = 0;
    ONE = 1;
    TWO = 2;
    THREE = 3;
    FOUR = 4;
}

message SubMessage {
    int32 vint_int32 = 1;
    int64 vint_int64 = 2;
    uint32 vint_uint32 = 3;
    uint64 vint_uint64 = 4;
}

message ExampleMessage {
    // https://developers.google.com/protocol-buffers/docs/encoding
    // ID   Name    Used For
    // 0    VARINT  int32, int64, uint32, uint64, sint32, sint64, bool, enum
    int32 vint_int32 = 1;
    int64 vint_int64 = 2;
    uint32 vint_uint32 = 3;
    uint64 vint_uint64 = 4;
    sint32 vint_sint32 = 5;
    sint64 vint_sint64 = 6;
    bool vint_bool = 7;
    NUM vint_enum = 8;

    // 1    I64    fixed64, sfixed64, double
    fixed64 I64_fixed64 = 11;
    sfixed64 I64_sfixed64 = 12;
    double I64_double = 13;

    // 2    LEN    string, bytes, embedded messages, packed repeated fields
    string LEN_string = 21;
    bytes LEN_bytes = 22; // maybe need identified by protoC
    SubMessage LEN_sub = 23;
    // repeated sint32 repeated_signed_vint = 24; // repeated signed(zigzag) not supported in libprotobuf
    repeated int32 LEN_repeated_packed_signed_vint = 25; // [packed = true]
    repeated uint32 LEN_repeated_packed_unsigned_vint = 26; // [packed = true]
    repeated fixed64 LEN_repeated_packed_fixed = 27; // [packed = true]
    repeated SubMessage repeated_LEN_sub = 28;

    // 5    I32    fixed32, sfixed32, float
    fixed32 I32_fixed32 = 51;
    sfixed32 I32_sfixed32 = 52;
    float I32_float = 53;

    // 6 oneof
    oneof oneoffield {
        fixed64 oneof_fixed64 = 61;
        string oneof_string = 62;
        SubMessage oneof_sub = 63;
    }

    repeated ExampleMessage repeated_Example = 100;

}