I'm looking for a suggestion about where to look next for fixing this
issue. With these three lines I get a compilation failure:
capnp::JsonCodec json;
capnp::SegmentArrayMessageReader reader(builder.getSegmentsForOutput());
kj::String json_encoded = json.encode(reader);
The failure is on the third line, I'm failing to see if I did something
wrong or if there are caveats to the JSON
encode function that I'm missing. These are schema I can already write out
to a binary stream successfully and
read back so I think those are ok.
Here's the compiler message:
[ 83%] Building CXX object src/capnstan/CMakeFiles/config_writer.dir/
config_writer.cpp.o
In file included from /home/krzysztof/packages/capnStan/downloads/capnproto-
c++/src/capnp/raw-schema.h:29:0,
from /home/krzysztof/packages/capnStan/capnStan/../
downloads/capnproto-c++/src/capnp/generated-header-support.h:31,
from /home/krzysztof/packages/capnStan/capnStan/src/capnp/
stan-config.capnp.h:7,
from /home/krzysztof/packages/capnStan/capnStan/src/
capnstan/config_switch.hpp:34,
from /home/krzysztof/packages/capnStan/capnStan/src/
capnstan/config_writer.cpp:1:
/home/krzysztof/packages/capnStan/downloads/capnproto-c++/src/capnp/common.h
: In substitution of ‘template<class T> using FromAny = typename capnp::
FromAny_<T>::Type [with T = kj::Decay_<capnp::SegmentArrayMessageReader&>::
Type]’:
/home/krzysztof/packages/capnStan/capnStan/../downloads/capnproto-c++/src/
capnp/compat/json.h:215:33: required from ‘kj::String capnp::JsonCodec::
encode(T&&) [with T = capnp::SegmentArrayMessageReader&]’
/home/krzysztof/packages/capnStan/capnStan/src/capnstan/config_writer.cpp:26
:51: required from here
/home/krzysztof/packages/capnStan/downloads/capnproto-c++/src/capnp/common.h
:290:43: error: invalid use of incomplete type ‘struct capnp::FromAny_<capnp
::SegmentArrayMessageReader, void>’
using FromAny = typename FromAny_<T>::Type;
^
/home/krzysztof/packages/capnStan/downloads/capnproto-c++/src/capnp/common.h
:256:8: note: declaration of ‘struct capnp::FromAny_<capnp::
SegmentArrayMessageReader, void>’
struct FromAny_;
^~~~~~~~
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