Joe Tsai 387873dd53 all: implement support for proto3 optional semantics
In the upcoming 3.12.x release of protoc, the proto3 language will be
amended to support true presence for scalars. This CL adds support
to both the generator and runtime to support these semantics.

Newly added public API:
	protogen.Plugin.SupportedFeatures
	protoreflect.FieldDescriptor.HasPresence
	protoreflect.FieldDescriptor.HasOptionalKeyword
	protoreflect.OneofDescriptor.IsSynthetic

Change-Id: I7c86bf66d0ae56642109beb5f2132184593747ad
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/230698
Reviewed-by: Damien Neil <dneil@google.com>
2020-04-29 20:02:24 +00:00

134 lines
5.2 KiB
Protocol Buffer

// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
syntax = "proto3";
package goproto.proto.test3;
import "internal/testprotos/test3/test_import.proto";
option go_package = "google.golang.org/protobuf/internal/testprotos/test3";
message TestAllTypes {
message NestedMessage {
int32 a = 1;
TestAllTypes corecursive = 2;
}
enum NestedEnum {
FOO = 0;
BAR = 1;
BAZ = 2;
NEG = -1; // Intentionally negative.
}
int32 singular_int32 = 81;
int64 singular_int64 = 82;
uint32 singular_uint32 = 83;
uint64 singular_uint64 = 84;
sint32 singular_sint32 = 85;
sint64 singular_sint64 = 86;
fixed32 singular_fixed32 = 87;
fixed64 singular_fixed64 = 88;
sfixed32 singular_sfixed32 = 89;
sfixed64 singular_sfixed64 = 90;
float singular_float = 91;
double singular_double = 92;
bool singular_bool = 93;
string singular_string = 94;
bytes singular_bytes = 95;
NestedMessage singular_nested_message = 98;
ForeignMessage singular_foreign_message = 99;
ImportMessage singular_import_message = 100;
NestedEnum singular_nested_enum = 101;
ForeignEnum singular_foreign_enum = 102;
ImportEnum singular_import_enum = 103;
optional int32 optional_int32 = 1;
optional int64 optional_int64 = 2;
optional uint32 optional_uint32 = 3;
optional uint64 optional_uint64 = 4;
optional sint32 optional_sint32 = 5;
optional sint64 optional_sint64 = 6;
optional fixed32 optional_fixed32 = 7;
optional fixed64 optional_fixed64 = 8;
optional sfixed32 optional_sfixed32 = 9;
optional sfixed64 optional_sfixed64 = 10;
optional float optional_float = 11;
optional double optional_double = 12;
optional bool optional_bool = 13;
optional string optional_string = 14;
optional bytes optional_bytes = 15;
optional NestedMessage optional_nested_message = 18;
optional ForeignMessage optional_foreign_message = 19;
optional ImportMessage optional_import_message = 20;
optional NestedEnum optional_nested_enum = 21;
optional ForeignEnum optional_foreign_enum = 22;
optional ImportEnum optional_import_enum = 23;
repeated int32 repeated_int32 = 31;
repeated int64 repeated_int64 = 32;
repeated uint32 repeated_uint32 = 33;
repeated uint64 repeated_uint64 = 34;
repeated sint32 repeated_sint32 = 35;
repeated sint64 repeated_sint64 = 36;
repeated fixed32 repeated_fixed32 = 37;
repeated fixed64 repeated_fixed64 = 38;
repeated sfixed32 repeated_sfixed32 = 39;
repeated sfixed64 repeated_sfixed64 = 40;
repeated float repeated_float = 41;
repeated double repeated_double = 42;
repeated bool repeated_bool = 43;
repeated string repeated_string = 44;
repeated bytes repeated_bytes = 45;
repeated NestedMessage repeated_nested_message = 48;
repeated ForeignMessage repeated_foreign_message = 49;
repeated ImportMessage repeated_importmessage = 50;
repeated NestedEnum repeated_nested_enum = 51;
repeated ForeignEnum repeated_foreign_enum = 52;
repeated ImportEnum repeated_importenum = 53;
map < int32, int32> map_int32_int32 = 56;
map < int64, int64> map_int64_int64 = 57;
map < uint32, uint32> map_uint32_uint32 = 58;
map < uint64, uint64> map_uint64_uint64 = 59;
map < sint32, sint32> map_sint32_sint32 = 60;
map < sint64, sint64> map_sint64_sint64 = 61;
map < fixed32, fixed32> map_fixed32_fixed32 = 62;
map < fixed64, fixed64> map_fixed64_fixed64 = 63;
map <sfixed32, sfixed32> map_sfixed32_sfixed32 = 64;
map <sfixed64, sfixed64> map_sfixed64_sfixed64 = 65;
map < int32, float> map_int32_float = 66;
map < int32, double> map_int32_double = 67;
map < bool, bool> map_bool_bool = 68;
map < string, string> map_string_string = 69;
map < string, bytes> map_string_bytes = 70;
map < string, NestedMessage> map_string_nested_message = 71;
map < string, NestedEnum> map_string_nested_enum = 73;
oneof oneof_field {
uint32 oneof_uint32 = 111;
NestedMessage oneof_nested_message = 112;
string oneof_string = 113;
bytes oneof_bytes = 114;
bool oneof_bool = 115;
uint64 oneof_uint64 = 116;
float oneof_float = 117;
double oneof_double = 118;
NestedEnum oneof_enum = 119;
}
}
message ForeignMessage {
int32 c = 1;
int32 d = 2;
}
enum ForeignEnum {
FOREIGN_ZERO = 0;
FOREIGN_FOO = 4;
FOREIGN_BAR = 5;
FOREIGN_BAZ = 6;
}