Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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/*
* Copyright (c) 2009-2021, Google LLC
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Google LLC nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
syntax = "proto2";
package pkg;
import public "upb/util/def_to_proto_public_import_test.proto";
import "upb/util/def_to_proto_regular_import_test.proto";
option optimize_for = CODE_SIZE;
option go_package = "foo_go_package";
option java_package = "bar_java_package";
option java_outer_classname = "baz_java_outer_classname";
option csharp_namespace = "quux_csharp_namespace";
option objc_class_prefix = "the_objc_prefix";
option cc_enable_arenas = true;
message Message {
optional int32 a = 1 [default = 3];
oneof foo {
string oneof_string = 2 [default = "abc\n"];
string oneof_bool = 3 [default = "true"];
bytes oneof_bytes = 4 [default = "abc\xef\xfe"];
}
optional pkg.RegularImportMessage regular_import_message = 6;
optional pkg.PublicImportMessage public_import_message = 7;
optional pkg.Proto3Enum proto3_enum = 8;
extensions 1000 to max;
extend Message {
optional int32 ext = 1000;
}
message NestedMessage {}
message NestedEnum {}
// TODO: support reserved ranges in defs.
// (At the moment they are ignored and will not round-trip through defs).
// reserved 4, 6 to 8;
}
enum Enum {
ZERO = 0;
ONE = 1;
NEGATIVE_ONE = -1;
}
enum EnumUpper32Value {
UPPER32_VALUE = 40;
}
enum HasDuplicateValues {
option allow_alias = true;
A = 0;
B = 1;
C = 120;
D = 130;
G = 120;
F = 1;
E = 0;
H = 121;
I = 121;
J = 121;
K = 121;
}
service Service {
rpc Bar(Message) returns (Message);
}
extend Message {
optional int32 ext = 1001;
}
enum Has31 {
VALUE_31 = 31;
}
message PretendMessageSet {
option message_set_wire_format = true;
// Since this is message_set_wire_format, "max" here means INT32_MAX.
// (For normal messages "max" would mean 2**29 - 1).
extensions 4 to 529999999;
extensions 530000000 to max
[declaration = {
number: 2147483646
full_name: ".pkg.MessageSetItem.message_set_extension"
type: ".pkg.MessageSetItem"
}];
}
message MessageSetItem {
extend PretendMessageSet {
// Since max is exclusive, this is INT32_MAX-1, not INT32_MAX.
optional MessageSetItem message_set_extension = 2147483646;
}
}
message UnusualDefaults {
optional bytes foo = 1 [default = "\\X"];
optional string bar = 2 [default = "\\X"];
}