Method processRequest

libs/cppdap/src/session.cpp:307–377

  }

  Payload processRequest(dap::json::Deserializer* d, dap::integer sequence) {
    dap::string command;
    if (!d->field("command", &command)) {
      handlers.error("Request missing string 'command' field");
      return {};
    }

    const dap::TypeInfo* typeinfo;
    GenericRequestHandler handler;
    std::tie(typeinfo, handler) = handlers.request(command);
    if (!typeinfo) {
      handlers.error("No request handler registered for command '%s'",
                     command.c_str());
      return {};
    }

    auto data = new uint8_t[typeinfo->size()];
    typeinfo->construct(data);

    if (!d->field("arguments", [&](dap::Deserializer* d) {
          return typeinfo->deserialize(d, data);
        })) {
      handlers.error("Failed to deserialize request");
      typeinfo->destruct(data);
      delete[] data;
      return {};
    }

    return [=] {
      handler(
          data,
          [=](const dap::TypeInfo* typeinfo, const void* data) {
            // onSuccess
            dap::json::Serializer s;
            s.object([&](dap::FieldSerializer* fs) {
              return fs->field("seq", dap::integer(nextSeq++)) &&
                     fs->field("type", "response") &&
                     fs->field("request_seq", sequence) &&
                     fs->field("success", dap::boolean(true)) &&
                     fs->field("command", command) &&
                     fs->field("body", [&](dap::Serializer* s) {
                       return typeinfo->serialize(s, data);
                     });
            });
            send(s.dump());

            if (auto handler = handlers.responseSent(typeinfo)) {
              handler(data, nullptr);
            }
          },
          [=](const dap::TypeInfo* typeinfo, const dap::Error& error) {
            // onError
            dap::json::Serializer s;
            s.object([&](dap::FieldSerializer* fs) {
              return fs->field("seq", dap::integer(nextSeq++)) &&
                     fs->field("type", "response") &&
                     fs->field("request_seq", sequence) &&
                     fs->field("success", dap::boolean(false)) &&