[jira] [Created] (MESOS-1427) Build error: clang++ not respecting 'friend' keyword?

["Yan Xu (JIRA)" <ji...@apache.org>]

Yan Xu created MESOS-1427:
-----------------------------

             Summary: Build error: clang++ not respecting 'friend' keyword?
                 Key: MESOS-1427
                 URL: https://issues.apache.org/jira/browse/MESOS-1427
             Project: Mesos
          Issue Type: Bug
            Reporter: Yan Xu


'State' is a [friend|https://github.com/apache/mesos/blob/a3170e0a9f85ee8230b7323ea97bf2d15fa2539f/src/state/protobuf.hpp#L60] of 'Variable' but the following error nonetheless.

{noformat}
libtool: compile:  clang++ -DPACKAGE_NAME=\"mesos\" -DPACKAGE_TARNAME=\"mesos\" -DPACKAGE_VERSION=\"0.19.0\" "-DPACKAGE_STRING=\"mesos 0.19.0\"" -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -DPACKAGE=\"mesos\" -DVERSION=\"0.19.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_PTHREAD=1 -DMESOS_HAS_JAVA=1 -DHAVE_PYTHON=\"2.7\" -DMESOS_HAS_PYTHON=1 -DHAVE_LIBZ=1 -DHAVE_LIBCURL=1 -DHAVE_LIBSASL2=1 -I. -Wall -Werror -DLIBDIR=\"/usr/local/lib\" -DPKGLIBEXECDIR=\"/usr/local/libexec/mesos\" -DPKGDATADIR=\"/usr/local/share/mesos\" -I../include -I../3rdparty/libprocess/include -I../3rdparty/libprocess/3rdparty/stout/include -I../include -I../3rdparty/libprocess/3rdparty/boost-1.53.0 -I../3rdparty/libprocess/3rdparty/protobuf-2.5.0/src -I../3rdparty/libprocess/3rdparty/picojson-4f93734 -I../3rdparty/libprocess/3rdparty/glog-0.3.3/src -I../3rdparty/leveldb/include -I../3rdparty/zookeeper-3.4.5/src/c/include -I../3rdparty/zookeeper-3.4.5/src/c/generated -pthread -g -g2 -O2 -std=c++11 -MT master/libmesos_no_3rdparty_la-registrar.lo -MD -MP -MF master/.deps/libmesos_no_3rdparty_la-registrar.Tpo -c master/registrar.cpp  -fPIC -DPIC -o master/.libs/libmesos_no_3rdparty_la-registrar.o
In file included from master/registrar.cpp:43:
In file included from ./master/registrar.hpp:32:
./state/protobuf.hpp:124:10: error: calling a private constructor of class 'mesos::internal::state::protobuf::Variable<mesos::internal::Registry>'
  return Variable<T>(variable, t.get());
         ^
./state/protobuf.hpp:111:41: note: in instantiation of function template specialization 'mesos::internal::state::protobuf::State::_fetch<mesos::internal::Registry>' requested here
    .then(lambda::bind(&State::template _fetch<T>, lambda::_1));
                                        ^
master/registrar.cpp:315:37: note: in instantiation of function template specialization 'mesos::internal::state::protobuf::State::fetch<mesos::internal::Registry>' requested here
    metrics.state_fetch.time(state->fetch<Registry>("registry"))
                                    ^
./state/protobuf.hpp:62:3: note: declared private here
  Variable(const state::Variable& _variable, const T& _t)
  ^
./state/protobuf.hpp:132:57: error: 't' is a private member of 'mesos::internal::state::protobuf::Variable<mesos::internal::Registry>'
  Try<std::string> value = messages::serialize(variable.t);
                                                        ^
master/registrar.cpp:441:35: note: in instantiation of function template specialization 'mesos::internal::state::protobuf::State::store<mesos::internal::Registry>' requested here
  metrics.state_store.time(state->store(variable.get().mutate(registry)))
                                  ^
./state/protobuf.hpp:67:5: note: declared private here
  T t;
    ^
./state/protobuf.hpp:138:39: error: 'variable' is a private member of 'mesos::internal::state::protobuf::Variable<mesos::internal::Registry>'
  return state::State::store(variable.variable.mutate(value.get()))
                                      ^
./state/protobuf.hpp:66:19: note: declared private here
  state::Variable variable; // Not const to keep Variable assignable.
                  ^
./state/protobuf.hpp:139:61: error: 't' is a private member of 'mesos::internal::state::protobuf::Variable<mesos::internal::Registry>'
    .then(lambda::bind(&State::template _store<T>, variable.t, lambda::_1));
                                                            ^
./state/protobuf.hpp:67:5: note: declared private here
  T t;
    ^
./state/protobuf.hpp:149:17: error: calling a private constructor of class 'mesos::internal::state::protobuf::Variable<mesos::internal::Registry>'
    return Some(Variable<T>(variable.get(), t));
                ^
./state/protobuf.hpp:139:41: note: in instantiation of function template specialization 'mesos::internal::state::protobuf::State::_store<mesos::internal::Registry>' requested here
    .then(lambda::bind(&State::template _store<T>, variable.t, lambda::_1));
                                        ^
master/registrar.cpp:441:35: note: in instantiation of function template specialization 'mesos::internal::state::protobuf::State::store<mesos::internal::Registry>' requested here
  metrics.state_store.time(state->store(variable.get().mutate(registry)))
                                  ^
./state/protobuf.hpp:62:3: note: declared private here
  Variable(const state::Variable& _variable, const T& _t)
  ^
{noformat}



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