Hi,
In the following protocol buffer, how does one access the repeated fields
in the extension from C++?
Glenn
base.proto:
message Base {
optional int32 id = 1;
repeated int32 ids = 2;
optional string name = 3;
repeated string names = 4;
extensions 1000 to 1999;
}
ext.proto:
import "base.proto";
extend Base {
repeated string names = 1000;
optional int32 number = 1001;
repeated int32 numbers = 1002;
optional string name = 1003;
}
Example:
#include "base.pb.h"
#include "ext.pb.h"
using namespace ::google::protobuf;
int main(int argc, char *argv[])
{
Base b;
// populate b here.
RepeatedPtrField<std::string> base_names = b.names(); // OK
RepeatedField<int> base_ids = b.ids(); // OK
int ext_number = b.GetExtension(number); // OK
std::string ext_name = b.GetExtension(name); // OK
assert( b.HasExtension(numbers) ); // OK
assert( b.HasExtension(names) ); // OK
int32 i = b.GetExtension(numbers); // ? Compiles but doesn't make sense.
RepeatedField<int32> ext_numbers = b.GetExtension(numbers); // compilation
fails:
RepeatedPtrField<std::string> ext_names = b.MutableExtension(names); //
compilation fails:
return 0;
}
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