garnet/go/src/fidl/compiler/backend/goldens/error.test.json.llcpp.h.golden

// WARNING: This file is machine generated by fidlgen.

#pragma once

#include <lib/fidl/internal.h>
#include <lib/fidl/llcpp/array.h>
#include <lib/fidl/llcpp/buffer_allocator.h>
#include <lib/fidl/llcpp/buffer_then_heap_allocator.h>
#include <lib/fidl/llcpp/coding.h>
#include <lib/fidl/llcpp/envelope.h>
#include <lib/fidl/llcpp/errors.h>
#include <lib/fidl/llcpp/linearized_and_encoded.h>
#include <lib/fidl/llcpp/memory.h>
#include <lib/fidl/llcpp/string_view.h>
#include <lib/fidl/llcpp/tracking_ptr.h>
#include <lib/fidl/llcpp/traits.h>
#include <lib/fidl/llcpp/vector_view.h>
#include <lib/fit/function.h>
#include <lib/fit/optional.h>

#include <variant>
#ifdef __Fuchsia__
#include <lib/fidl/llcpp/client.h>
#include <lib/fidl/llcpp/connect_service.h>
#include <lib/fidl/llcpp/message.h>
#include <lib/fidl/llcpp/result.h>
#include <lib/fidl/llcpp/server.h>
#include <lib/fidl/llcpp/service_handler_interface.h>
#include <lib/fidl/llcpp/sync_call.h>
#include <lib/fidl/llcpp/transaction.h>
#include <lib/fidl/txn_header.h>
#include <lib/zx/channel.h>
#endif  // __Fuchsia__
#include <zircon/fidl.h>

namespace llcpp {

namespace fidl {
namespace test {
namespace json {

struct Example_foo_Response;
class Example_foo_Result;
class Example;

extern "C" const fidl_type_t fidl_test_json_Example_foo_ResultTable;

class Example_foo_Result {
 public:
  Example_foo_Result() : ordinal_(Ordinal::Invalid), envelope_{} {}

  Example_foo_Result(Example_foo_Result&&) = default;
  Example_foo_Result& operator=(Example_foo_Result&&) = default;

  ~Example_foo_Result() { reset_ptr(nullptr); }

  enum class Tag : fidl_xunion_tag_t {
    kResponse = 1,  // 0x1
    kErr = 2,       // 0x2
  };

  bool has_invalid_tag() const { return ordinal_ == Ordinal::Invalid; }

  bool is_response() const { return ordinal_ == Ordinal::kResponse; }

  static Example_foo_Result WithResponse(
      ::fidl::tracking_ptr<::llcpp::fidl::test::json::Example_foo_Response>&&
          val) {
    Example_foo_Result result;
    result.set_response(std::move(val));
    return result;
  }

  void set_response(
      ::fidl::tracking_ptr<::llcpp::fidl::test::json::Example_foo_Response>&&
          elem) {
    ordinal_ = Ordinal::kResponse;
    reset_ptr(static_cast<::fidl::tracking_ptr<void>>(std::move(elem)));
  }

  ::llcpp::fidl::test::json::Example_foo_Response& mutable_response() {
    ZX_ASSERT(ordinal_ == Ordinal::kResponse);
    return *static_cast<::llcpp::fidl::test::json::Example_foo_Response*>(
        envelope_.data.get());
  }
  const ::llcpp::fidl::test::json::Example_foo_Response& response() const {
    ZX_ASSERT(ordinal_ == Ordinal::kResponse);
    return *static_cast<::llcpp::fidl::test::json::Example_foo_Response*>(
        envelope_.data.get());
  }

  bool is_err() const { return ordinal_ == Ordinal::kErr; }

  static Example_foo_Result WithErr(::fidl::tracking_ptr<uint32_t>&& val) {
    Example_foo_Result result;
    result.set_err(std::move(val));
    return result;
  }

  void set_err(::fidl::tracking_ptr<uint32_t>&& elem) {
    ordinal_ = Ordinal::kErr;
    reset_ptr(static_cast<::fidl::tracking_ptr<void>>(std::move(elem)));
  }

  uint32_t& mutable_err() {
    ZX_ASSERT(ordinal_ == Ordinal::kErr);
    return *static_cast<uint32_t*>(envelope_.data.get());
  }
  const uint32_t& err() const {
    ZX_ASSERT(ordinal_ == Ordinal::kErr);
    return *static_cast<uint32_t*>(envelope_.data.get());
  }
  Tag which() const {
    ZX_ASSERT(!has_invalid_tag());
    return static_cast<Tag>(ordinal_);
  }

  static constexpr const fidl_type_t* Type =
      &fidl_test_json_Example_foo_ResultTable;
  static constexpr uint32_t MaxNumHandles = 0;
  static constexpr uint32_t PrimarySize = 24;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 8;
  static constexpr bool HasPointer = true;
  static constexpr bool IsResource = false;

  void _CloseHandles();

 private:
  enum class Ordinal : fidl_xunion_tag_t {
    Invalid = 0,
    kResponse = 1,  // 0x1
    kErr = 2,       // 0x2
  };

  void reset_ptr(::fidl::tracking_ptr<void>&& new_ptr) {
    // To clear the existing value, std::move it and let it go out of scope.
    switch (static_cast<fidl_xunion_tag_t>(ordinal_)) {
      case 1: {
        ::fidl::tracking_ptr<::llcpp::fidl::test::json::Example_foo_Response>
            to_destroy = static_cast<::fidl::tracking_ptr<
                ::llcpp::fidl::test::json::Example_foo_Response>>(
                std::move(envelope_.data));
        break;
      }
      case 2: {
        ::fidl::tracking_ptr<uint32_t> to_destroy =
            static_cast<::fidl::tracking_ptr<uint32_t>>(
                std::move(envelope_.data));
        break;
      }
    }

    envelope_.data = std::move(new_ptr);
  }

  static void SizeAndOffsetAssertionHelper();
  Ordinal ordinal_;
  FIDL_ALIGNDECL
  ::fidl::Envelope<void> envelope_;
};

extern "C" const fidl_type_t fidl_test_json_Example_foo_ResponseTable;

struct Example_foo_Response {
  static constexpr const fidl_type_t* Type =
      &fidl_test_json_Example_foo_ResponseTable;
  static constexpr uint32_t MaxNumHandles = 0;
  static constexpr uint32_t PrimarySize = 8;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 0;
  static constexpr bool HasPointer = false;
  static constexpr bool IsResource = false;

  int64_t y = {};
  void _CloseHandles();
};

extern "C" const fidl_type_t fidl_test_json_ExamplefooRequestTable;
extern "C" const fidl_type_t fidl_test_json_ExamplefooResponseTable;

class Example final {
  Example() = delete;

 public:
  struct fooResponse final {
    FIDL_ALIGNDECL
    fidl_message_header_t _hdr;
    ::llcpp::fidl::test::json::Example_foo_Result result;
    explicit fooResponse(::llcpp::fidl::test::json::Example_foo_Result& result)
        : result(std::move(result)) {
      _InitHeader();
    }
    fooResponse() { _InitHeader(); }

    static constexpr const fidl_type_t* Type =
        &fidl_test_json_ExamplefooResponseTable;
    static constexpr uint32_t MaxNumHandles = 0;
    static constexpr uint32_t PrimarySize = 40;
    static constexpr uint32_t MaxOutOfLine = 8;
    static constexpr bool HasFlexibleEnvelope = false;
    static constexpr bool HasPointer = true;
    static constexpr bool IsResource = false;
    static constexpr ::fidl::internal::TransactionalMessageKind MessageKind =
        ::fidl::internal::TransactionalMessageKind::kResponse;

   private:
    void _InitHeader();
  };
  struct fooRequest final {
    FIDL_ALIGNDECL
    fidl_message_header_t _hdr;
    ::fidl::StringView s;
    explicit fooRequest(zx_txid_t _txid, const ::fidl::StringView& s)
        : s(::fidl::unowned_ptr_t<const char>(s.data()), s.size()) {
      _InitHeader(_txid);
    }
    explicit fooRequest(zx_txid_t _txid) { _InitHeader(_txid); }

    static constexpr const fidl_type_t* Type =
        &fidl_test_json_ExamplefooRequestTable;
    static constexpr uint32_t MaxNumHandles = 0;
    static constexpr uint32_t PrimarySize = 32;
    static constexpr uint32_t MaxOutOfLine = 4294967295;
    static constexpr uint32_t AltPrimarySize = 32;
    static constexpr uint32_t AltMaxOutOfLine = 4294967295;
    static constexpr bool HasFlexibleEnvelope = false;
    static constexpr bool HasPointer = true;
    static constexpr bool IsResource = false;
    static constexpr ::fidl::internal::TransactionalMessageKind MessageKind =
        ::fidl::internal::TransactionalMessageKind::kRequest;
    using ResponseType = fooResponse;

   private:
    void _InitHeader(zx_txid_t _txid);
  };

  // Collection of return types of FIDL calls in this protocol.
  class ResultOf final {
    ResultOf() = delete;

   public:
    class foo final : public ::fidl::Result {
     public:
      explicit foo(zx_handle_t _client, const ::fidl::StringView& s);
      foo(zx_handle_t _client, const ::fidl::StringView& s,
          zx_time_t _deadline);
      explicit foo(const ::fidl::Result& result) : ::fidl::Result(result) {}
      foo(foo&&) = delete;
      foo(const foo&) = delete;
      foo* operator=(foo&&) = delete;
      foo* operator=(const foo&) = delete;
      ~foo() = default;

      fooResponse* Unwrap() {
        ZX_DEBUG_ASSERT(ok());
        return reinterpret_cast<fooResponse*>(bytes_);
      }
      const fooResponse* Unwrap() const {
        ZX_DEBUG_ASSERT(ok());
        return reinterpret_cast<const fooResponse*>(bytes_);
      }

      fooResponse& value() { return *Unwrap(); }
      const fooResponse& value() const { return *Unwrap(); }

      fooResponse* operator->() { return &value(); }
      const fooResponse* operator->() const { return &value(); }

      fooResponse& operator*() { return value(); }
      const fooResponse& operator*() const { return value(); }

     private:
      FIDL_ALIGNDECL
      uint8_t bytes_[fooResponse::PrimarySize + fooResponse::MaxOutOfLine];
    };
  };

  // Collection of return types of FIDL calls in this protocol,
  // when the caller-allocate flavor or in-place call is used.
  class UnownedResultOf final {
    UnownedResultOf() = delete;

   public:
    class foo final : public ::fidl::Result {
     public:
      explicit foo(zx_handle_t _client, uint8_t* _request_bytes,
                   uint32_t _request_byte_capacity, const ::fidl::StringView& s,
                   uint8_t* _response_bytes, uint32_t _response_byte_capacity);
      explicit foo(const ::fidl::Result& result) : ::fidl::Result(result) {}
      foo(foo&&) = delete;
      foo(const foo&) = delete;
      foo* operator=(foo&&) = delete;
      foo* operator=(const foo&) = delete;
      ~foo() = default;

      fooResponse* Unwrap() {
        ZX_DEBUG_ASSERT(ok());
        return reinterpret_cast<fooResponse*>(bytes_);
      }
      const fooResponse* Unwrap() const {
        ZX_DEBUG_ASSERT(ok());
        return reinterpret_cast<const fooResponse*>(bytes_);
      }

      fooResponse& value() { return *Unwrap(); }
      const fooResponse& value() const { return *Unwrap(); }

      fooResponse* operator->() { return &value(); }
      const fooResponse* operator->() const { return &value(); }

      fooResponse& operator*() { return value(); }
      const fooResponse& operator*() const { return value(); }

     private:
      uint8_t* bytes_;
    };
  };

  class fooUnownedResponse final {
   public:
    fooUnownedResponse(uint8_t* _bytes, uint32_t _byte_size,
                       ::llcpp::fidl::test::json::Example_foo_Result& result)
        : message_(_bytes, _byte_size, sizeof(fooResponse), nullptr, 0, 0) {
      FIDL_ALIGNDECL fooResponse _response(result);
      message_.LinearizeAndEncode(fooResponse::Type, &_response);
    }

    zx_status_t status() const { return message_.status(); }
    bool ok() const { return message_.status() == ZX_OK; }
    const char* error() const { return message_.error(); }

    ::fidl::FidlMessage& GetFidlMessage() { return message_; }

    void Write(zx_handle_t client) { message_.Write(client); }

   private:
    fooResponse& Message() {
      return *reinterpret_cast<fooResponse*>(message_.bytes());
    }
    ::fidl::FidlMessage message_;
  };

  class fooOwnedResponse final {
   public:
    explicit fooOwnedResponse(
        ::llcpp::fidl::test::json::Example_foo_Result& result)
        : message_(bytes_, sizeof(bytes_), result) {}

    zx_status_t status() const { return message_.status(); }
    bool ok() const { return message_.ok(); }
    const char* error() const { return message_.error(); }

    ::fidl::FidlMessage& GetFidlMessage() { return message_.GetFidlMessage(); }

    void Write(zx_handle_t client) { message_.Write(client); }

   private:
    FIDL_ALIGNDECL
    uint8_t bytes_[fooResponse::PrimarySize + fooResponse::MaxOutOfLine];
    fooUnownedResponse message_;
  };

  class fooUnownedRequest final {
   public:
    fooUnownedRequest(uint8_t* _bytes, uint32_t _byte_size, zx_txid_t _txid,
                      const ::fidl::StringView& s)
        : message_(_bytes, _byte_size, sizeof(fooRequest), nullptr, 0, 0) {
      FIDL_ALIGNDECL fooRequest _request(_txid, s);
      message_.LinearizeAndEncode(fooRequest::Type, &_request);
    }

    zx_status_t status() const { return message_.status(); }
    bool ok() const { return message_.status() == ZX_OK; }
    const char* error() const { return message_.error(); }

    ::fidl::FidlMessage& GetFidlMessage() { return message_; }

    void Write(zx_handle_t client) { message_.Write(client); }

   private:
    fooRequest& Message() {
      return *reinterpret_cast<fooRequest*>(message_.bytes());
    }
    ::fidl::FidlMessage message_;
  };

  class fooOwnedRequest final {
   public:
    explicit fooOwnedRequest(zx_txid_t _txid, const ::fidl::StringView& s)
        : bytes_(std::make_unique<
                 ::fidl::internal::AlignedBuffer<ZX_CHANNEL_MAX_MSG_BYTES>>()),
          message_(bytes_->data(), ZX_CHANNEL_MAX_MSG_BYTES, _txid, s) {}

    zx_status_t status() const { return message_.status(); }
    bool ok() const { return message_.ok(); }
    const char* error() const { return message_.error(); }

    ::fidl::FidlMessage& GetFidlMessage() { return message_.GetFidlMessage(); }

    void Write(zx_handle_t client) { message_.Write(client); }

   private:
    std::unique_ptr<::fidl::internal::AlignedBuffer<ZX_CHANNEL_MAX_MSG_BYTES>>
        bytes_;
    fooUnownedRequest message_;
  };

  // Methods to make a sync FIDL call directly on an unowned channel, avoiding
  // setting up a client.
  class Call final {
    Call() = delete;

   public:
    // Allocates 48 bytes of response buffer on the stack. Request is
    // heap-allocated.
    static ResultOf::foo foo(::zx::unowned_channel _client_end,
                             ::fidl::StringView s) {
      return ResultOf::foo(_client_end->get(), s);
    }

    // Caller provides the backing storage for FIDL message via request and
    // response buffers.
    static UnownedResultOf::foo foo(::zx::unowned_channel _client_end,
                                    ::fidl::BytePart _request_buffer,
                                    ::fidl::StringView s,
                                    ::fidl::BytePart _response_buffer) {
      return UnownedResultOf::foo(_client_end->get(), _request_buffer.data(),
                                  _request_buffer.capacity(), s,
                                  _response_buffer.data(),
                                  _response_buffer.capacity());
    }
  };

  class SyncClient final {
   public:
    SyncClient() = default;
    explicit SyncClient(::zx::channel channel) : channel_(std::move(channel)) {}
    ~SyncClient() = default;
    SyncClient(SyncClient&&) = default;
    SyncClient& operator=(SyncClient&&) = default;

    const ::zx::channel& channel() const { return channel_; }

    ::zx::channel* mutable_channel() { return &channel_; }

    // Allocates 48 bytes of response buffer on the stack. Request is
    // heap-allocated.
    ResultOf::foo foo(::fidl::StringView s) {
      return ResultOf::foo(this->channel().get(), s);
    }

    // Caller provides the backing storage for FIDL message via request and
    // response buffers.
    UnownedResultOf::foo foo(::fidl::BytePart _request_buffer,
                             ::fidl::StringView s,
                             ::fidl::BytePart _response_buffer) {
      return UnownedResultOf::foo(this->channel().get(), _request_buffer.data(),
                                  _request_buffer.capacity(), s,
                                  _response_buffer.data(),
                                  _response_buffer.capacity());
    }

   private:
    ::zx::channel channel_;
  };

  struct AsyncEventHandlers;
  class fooResponseContext;
  class ClientImpl;

  // Pure-virtual interface to be implemented by a server.
  class Interface {
   public:
    Interface() = default;
    virtual ~Interface() = default;

    // The marker protocol type within which this |Interface| class is defined.
    using _EnclosingProtocol = Example;

    class fooCompleterBase : public ::fidl::CompleterBase {
     public:
      // In the following methods, the return value indicates internal errors
      // during the reply, such as encoding or writing to the transport. Note
      // that any error will automatically lead to the destruction of the
      // binding, after which the |on_unbound| callback will be triggered with a
      // detailed reason.
      //
      // See //zircon/system/ulib/fidl/include/lib/fidl/llcpp/server.h.
      //
      // Because the reply status is identical to the unbinding status, it can
      // be safely ignored.
      ::fidl::Result Reply(
          ::llcpp::fidl::test::json::Example_foo_Result result);
      ::fidl::Result ReplySuccess(int64_t y);
      ::fidl::Result ReplyError(uint32_t error);
      ::fidl::Result Reply(
          ::fidl::BytePart _buffer,
          ::llcpp::fidl::test::json::Example_foo_Result result);
      ::fidl::Result ReplySuccess(::fidl::BytePart _buffer, int64_t y);

     protected:
      using ::fidl::CompleterBase::CompleterBase;
    };

    using fooCompleter = ::fidl::Completer<fooCompleterBase>;

    virtual void foo(::fidl::StringView s, fooCompleter::Sync& _completer) = 0;
  };

  // Attempts to dispatch the incoming message to a handler function in the
  // server implementation. If there is no matching handler, it returns false,
  // leaving the message and transaction intact. In all other cases, it consumes
  // the message and returns true. It is possible to chain multiple TryDispatch
  // functions in this manner.
  static ::fidl::DispatchResult TryDispatch(Interface* impl, fidl_msg_t* msg,
                                            ::fidl::Transaction* txn);

  // Dispatches the incoming message to one of the handlers functions in the
  // protocol. If there is no matching handler, it closes all the handles in
  // |msg| and closes the channel with a |ZX_ERR_NOT_SUPPORTED| epitaph, before
  // returning false. The message should then be discarded.
  static ::fidl::DispatchResult Dispatch(Interface* impl, fidl_msg_t* msg,
                                         ::fidl::Transaction* txn);

  // Same as |Dispatch|, but takes a |void*| instead of |Interface*|.
  // Only used with |fidl::BindServer| to reduce template expansion.
  // Do not call this method manually. Use |Dispatch| instead.
  static ::fidl::DispatchResult TypeErasedDispatch(void* impl, fidl_msg_t* msg,
                                                   ::fidl::Transaction* txn) {
    return Dispatch(static_cast<Interface*>(impl), msg, txn);
  }

  class EventSender;
};

}  // namespace json
}  // namespace test
}  // namespace fidl
}  // namespace llcpp

namespace fidl {

template <>
struct IsFidlType<::llcpp::fidl::test::json::Example_foo_Response>
    : public std::true_type {};
template <>
struct IsStruct<::llcpp::fidl::test::json::Example_foo_Response>
    : public std::true_type {};
static_assert(
    std::is_standard_layout_v<::llcpp::fidl::test::json::Example_foo_Response>);
static_assert(offsetof(::llcpp::fidl::test::json::Example_foo_Response, y) ==
              0);
static_assert(sizeof(::llcpp::fidl::test::json::Example_foo_Response) ==
              ::llcpp::fidl::test::json::Example_foo_Response::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::json::Example_foo_Result>
    : public std::true_type {};
template <>
struct IsUnion<::llcpp::fidl::test::json::Example_foo_Result>
    : public std::true_type {};
static_assert(
    std::is_standard_layout_v<::llcpp::fidl::test::json::Example_foo_Result>);

template <>
struct IsFidlType<::llcpp::fidl::test::json::Example::fooRequest>
    : public std::true_type {};
template <>
struct IsFidlMessage<::llcpp::fidl::test::json::Example::fooRequest>
    : public std::true_type {};
static_assert(sizeof(::llcpp::fidl::test::json::Example::fooRequest) ==
              ::llcpp::fidl::test::json::Example::fooRequest::PrimarySize);
static_assert(offsetof(::llcpp::fidl::test::json::Example::fooRequest, s) ==
              16);

template <>
struct IsFidlType<::llcpp::fidl::test::json::Example::fooResponse>
    : public std::true_type {};
template <>
struct IsFidlMessage<::llcpp::fidl::test::json::Example::fooResponse>
    : public std::true_type {};
static_assert(sizeof(::llcpp::fidl::test::json::Example::fooResponse) ==
              ::llcpp::fidl::test::json::Example::fooResponse::PrimarySize);
static_assert(offsetof(::llcpp::fidl::test::json::Example::fooResponse,
                       result) == 16);

}  // namespace fidl

namespace llcpp {

namespace fidl {
namespace test {
namespace json {

struct Example::AsyncEventHandlers {};

class Example::fooResponseContext : public ::fidl::internal::ResponseContext {
 public:
  fooResponseContext();

  virtual void OnReply(Example::fooResponse* message) = 0;

 private:
  void OnReply(uint8_t* reply) override;
};

class Example::ClientImpl final : private ::fidl::internal::ClientBase {
 public:
  // Asynchronous variant of |Example.foo()|. The request and callback are
  // allocated on the heap.
  ::fidl::Result foo(::fidl::StringView s,
                     ::fit::callback<void(
                         ::llcpp::fidl::test::json::Example_foo_Result result)>
                         _cb);
  // Asynchronous variant of |Example.foo()|. Caller provides the backing
  // storage for FIDL message via request buffer. Ownership of _context is given
  // unsafely to the binding until OnError() or OnReply() are called on it.
  ::fidl::Result foo(::fidl::BytePart _request_buffer, ::fidl::StringView s,
                     fooResponseContext* _context);
  // Synchronous variant of |Example.foo()|. Allocates 48 bytes of response
  // buffer on the stack. Request is heap-allocated.
  ResultOf::foo foo_Sync(::fidl::StringView s);

  // Synchronous variant of |Example.foo()|. Caller provides the backing storage
  // for FIDL message via request and response buffers.
  UnownedResultOf::foo foo_Sync(::fidl::BytePart _request_buffer,
                                ::fidl::StringView s,
                                ::fidl::BytePart _response_buffer);

 private:
  friend class ::fidl::Client<Example>;

  explicit ClientImpl(AsyncEventHandlers handlers)
      : handlers_(std::move(handlers)) {}

  std::optional<::fidl::UnbindInfo> DispatchEvent(fidl_msg_t* msg) override;

  AsyncEventHandlers handlers_;
};

class Example::EventSender {
 public:
 private:
  friend class ::fidl::ServerBindingRef<Example>;

  explicit EventSender(
      std::weak_ptr<::fidl::internal::AsyncServerBinding> binding)
      : binding_(std::move(binding)) {}

  std::weak_ptr<::fidl::internal::AsyncServerBinding> binding_;
};

}  // namespace json
}  // namespace test
}  // namespace fidl
}  // namespace llcpp