protobuf/csharp/protos/unittest_selfreferential_options.proto

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syntax = "proto2";

package protobuf_unittest_selfreferential_options;
option csharp_namespace = "UnitTest.Issues.TestProtos.SelfreferentialOptions";

import "google/protobuf/descriptor.proto";

message FooOptions {
  // Custom field option used in definition of the extension message.
  optional int32 int_opt = 1 [(foo_options) = {
    int_opt: 1
    [foo_int_opt]: 2
    [foo_foo_opt]: {
      int_opt: 3
    }
  }];

  // Custom field option used in definition of the custom option's message.
  optional int32 foo = 2 [(foo_options) = {foo: 1234}];

  extensions 1000 to max;
}

extend google.protobuf.FieldOptions {
  // Custom field option used on the definition of that field option.
  optional int32 bar_options = 1000 [(bar_options) = 1234];

  optional FooOptions foo_options = 1001;
}

extend FooOptions {
   optional int32 foo_int_opt = 1000;
   optional FooOptions foo_foo_opt = 1001;
}