garnet/go/src/fidl/compiler/backend/goldens/nullable.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/coding.h>
#include <lib/fidl/llcpp/connect_service.h>
#include <lib/fidl/llcpp/envelope.h>
#include <lib/fidl/llcpp/memory.h>
#include <lib/fidl/llcpp/service_handler_interface.h>
#include <lib/fidl/llcpp/string_view.h>
#include <lib/fidl/llcpp/sync_call.h>
#include <lib/fidl/llcpp/tracking_ptr.h>
#include <lib/fidl/llcpp/traits.h>
#include <lib/fidl/llcpp/transaction.h>
#include <lib/fidl/llcpp/vector_view.h>
#include <lib/fidl/txn_header.h>
#include <lib/fit/function.h>
#include <lib/zx/channel.h>
#include <lib/zx/vmo.h>
#include <zircon/fidl.h>

namespace llcpp {

namespace fidl {
namespace test {
namespace nullable {

struct StructWithNullableVector;
struct StructWithNullableUnion;
struct StructWithNullableStruct;
struct StructWithNullableString;
struct StructWithNullableRequest;
struct StructWithNullableProtocol;
struct StructWithNullableHandle;
class SimpleProtocol;
class SimpleUnion;
struct Int32Wrapper;

extern "C" const fidl_type_t v1_fidl_test_nullable_SimpleUnionTable;

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

  SimpleUnion(SimpleUnion&&) = default;
  SimpleUnion& operator=(SimpleUnion&&) = default;

  ~SimpleUnion() { reset_ptr(nullptr); }

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

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

  bool is_a() const { return ordinal_ == Ordinal::kA; }

  static SimpleUnion WithA(::fidl::tracking_ptr<int32_t>&& val) {
    SimpleUnion result;
    result.set_a(std::move(val));
    return result;
  }

  void set_a(::fidl::tracking_ptr<int32_t>&& elem) {
    ordinal_ = Ordinal::kA;
    reset_ptr(static_cast<::fidl::tracking_ptr<void>>(std::move(elem)));
  }

  int32_t& mutable_a() {
    ZX_ASSERT(ordinal_ == Ordinal::kA);
    return *static_cast<int32_t*>(envelope_.data.get());
  }
  const int32_t& a() const {
    ZX_ASSERT(ordinal_ == Ordinal::kA);
    return *static_cast<int32_t*>(envelope_.data.get());
  }

  bool is_b() const { return ordinal_ == Ordinal::kB; }

  static SimpleUnion WithB(::fidl::tracking_ptr<float>&& val) {
    SimpleUnion result;
    result.set_b(std::move(val));
    return result;
  }

  void set_b(::fidl::tracking_ptr<float>&& elem) {
    ordinal_ = Ordinal::kB;
    reset_ptr(static_cast<::fidl::tracking_ptr<void>>(std::move(elem)));
  }

  float& mutable_b() {
    ZX_ASSERT(ordinal_ == Ordinal::kB);
    return *static_cast<float*>(envelope_.data.get());
  }
  const float& b() const {
    ZX_ASSERT(ordinal_ == Ordinal::kB);
    return *static_cast<float*>(envelope_.data.get());
  }
  Tag which() const {
    ZX_ASSERT(!has_invalid_tag());
    return static_cast<Tag>(ordinal_);
  }

  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_SimpleUnionTable;
  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;

 private:
  enum class Ordinal : fidl_xunion_tag_t {
    Invalid = 0,
    kA = 1,  // 0x1
    kB = 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<int32_t> to_destroy =
            static_cast<::fidl::tracking_ptr<int32_t>>(
                std::move(envelope_.data));
        break;
      }
      case 2: {
        ::fidl::tracking_ptr<float> to_destroy =
            static_cast<::fidl::tracking_ptr<float>>(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
    v1_fidl_test_nullable_StructWithNullableVectorTable;

struct StructWithNullableVector {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_StructWithNullableVectorTable;
  static constexpr uint32_t MaxNumHandles = 0;
  static constexpr uint32_t PrimarySize = 16;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 4294967295;
  static constexpr bool HasPointer = true;

  ::fidl::VectorView<int32_t> val = {};
};

extern "C" const fidl_type_t v1_fidl_test_nullable_StructWithNullableUnionTable;

struct StructWithNullableUnion {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_StructWithNullableUnionTable;
  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;

  ::llcpp::fidl::test::nullable::SimpleUnion val = {};
};

extern "C" const fidl_type_t
    v1_fidl_test_nullable_StructWithNullableStructTable;

struct StructWithNullableStruct {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_StructWithNullableStructTable;
  static constexpr uint32_t MaxNumHandles = 0;
  static constexpr uint32_t PrimarySize = 8;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 8;
  static constexpr bool HasPointer = true;

  ::fidl::tracking_ptr<::llcpp::fidl::test::nullable::Int32Wrapper> val = {};
};

extern "C" const fidl_type_t
    v1_fidl_test_nullable_StructWithNullableStringTable;

struct StructWithNullableString {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_StructWithNullableStringTable;
  static constexpr uint32_t MaxNumHandles = 0;
  static constexpr uint32_t PrimarySize = 16;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 4294967295;
  static constexpr bool HasPointer = true;

  ::fidl::StringView val = {};
};

extern "C" const fidl_type_t
    v1_fidl_test_nullable_StructWithNullableRequestTable;

struct StructWithNullableRequest {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_StructWithNullableRequestTable;
  static constexpr uint32_t MaxNumHandles = 1;
  static constexpr uint32_t PrimarySize = 4;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 0;
  static constexpr bool HasPointer = false;

  ::zx::channel val = {};
};

extern "C" const fidl_type_t
    v1_fidl_test_nullable_StructWithNullableProtocolTable;

struct StructWithNullableProtocol {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_StructWithNullableProtocolTable;
  static constexpr uint32_t MaxNumHandles = 1;
  static constexpr uint32_t PrimarySize = 4;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 0;
  static constexpr bool HasPointer = false;

  ::zx::channel val = {};
};

extern "C" const fidl_type_t
    v1_fidl_test_nullable_StructWithNullableHandleTable;

struct StructWithNullableHandle {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_StructWithNullableHandleTable;
  static constexpr uint32_t MaxNumHandles = 1;
  static constexpr uint32_t PrimarySize = 4;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 0;
  static constexpr bool HasPointer = false;

  ::zx::vmo val = {};
};

extern "C" const fidl_type_t
    v1_fidl_test_nullable_SimpleProtocolAddRequestTable;
extern "C" const fidl_type_t
    v1_fidl_test_nullable_SimpleProtocolAddResponseTable;

class SimpleProtocol final {
  SimpleProtocol() = delete;

 public:
  struct AddResponse final {
    FIDL_ALIGNDECL
    fidl_message_header_t _hdr;
    int32_t sum;

    static constexpr const fidl_type_t* Type =
        &v1_fidl_test_nullable_SimpleProtocolAddResponseTable;
    static constexpr uint32_t MaxNumHandles = 0;
    static constexpr uint32_t PrimarySize = 24;
    static constexpr uint32_t MaxOutOfLine = 0;
    static constexpr bool HasFlexibleEnvelope = false;
    static constexpr bool HasPointer = false;
    static constexpr bool ContainsUnion = false;
    static constexpr ::fidl::internal::TransactionalMessageKind MessageKind =
        ::fidl::internal::TransactionalMessageKind::kResponse;
  };
  struct AddRequest final {
    FIDL_ALIGNDECL
    fidl_message_header_t _hdr;
    int32_t a;
    int32_t b;

    static constexpr const fidl_type_t* Type =
        &v1_fidl_test_nullable_SimpleProtocolAddRequestTable;
    static constexpr uint32_t MaxNumHandles = 0;
    static constexpr uint32_t PrimarySize = 24;
    static constexpr uint32_t MaxOutOfLine = 0;
    static constexpr uint32_t AltPrimarySize = 24;
    static constexpr uint32_t AltMaxOutOfLine = 0;
    static constexpr bool HasFlexibleEnvelope = false;
    static constexpr bool HasPointer = false;
    static constexpr bool ContainsUnion = false;
    static constexpr ::fidl::internal::TransactionalMessageKind MessageKind =
        ::fidl::internal::TransactionalMessageKind::kRequest;
    using ResponseType = AddResponse;
  };

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

   private:
    template <typename ResponseType>
    class Add_Impl final
        : private ::fidl::internal::OwnedSyncCallBase<ResponseType> {
      using Super = ::fidl::internal::OwnedSyncCallBase<ResponseType>;

     public:
      Add_Impl(::zx::unowned_channel _client_end, int32_t a, int32_t b);
      ~Add_Impl() = default;
      Add_Impl(Add_Impl&& other) = default;
      Add_Impl& operator=(Add_Impl&& other) = default;
      using Super::error;
      using Super::ok;
      using Super::status;
      using Super::Unwrap;
      using Super::value;
      using Super::operator->;
      using Super::operator*;
    };

   public:
    using Add = Add_Impl<AddResponse>;
  };

  // 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;

   private:
    template <typename ResponseType>
    class Add_Impl final
        : private ::fidl::internal::UnownedSyncCallBase<ResponseType> {
      using Super = ::fidl::internal::UnownedSyncCallBase<ResponseType>;

     public:
      Add_Impl(::zx::unowned_channel _client_end,
               ::fidl::BytePart _request_buffer, int32_t a, int32_t b,
               ::fidl::BytePart _response_buffer);
      ~Add_Impl() = default;
      Add_Impl(Add_Impl&& other) = default;
      Add_Impl& operator=(Add_Impl&& other) = default;
      using Super::error;
      using Super::ok;
      using Super::status;
      using Super::Unwrap;
      using Super::value;
      using Super::operator->;
      using Super::operator*;
    };

   public:
    using Add = Add_Impl<AddResponse>;
  };

  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 message buffer on the stack. No heap allocation
    // necessary.
    ResultOf::Add Add(int32_t a, int32_t b);

    // Caller provides the backing storage for FIDL message via request and
    // response buffers.
    UnownedResultOf::Add Add(::fidl::BytePart _request_buffer, int32_t a,
                             int32_t b, ::fidl::BytePart _response_buffer);

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

  // 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 message buffer on the stack. No heap allocation
    // necessary.
    static ResultOf::Add Add(::zx::unowned_channel _client_end, int32_t a,
                             int32_t b);

    // Caller provides the backing storage for FIDL message via request and
    // response buffers.
    static UnownedResultOf::Add Add(::zx::unowned_channel _client_end,
                                    ::fidl::BytePart _request_buffer, int32_t a,
                                    int32_t b,
                                    ::fidl::BytePart _response_buffer);
  };

  // Messages are encoded and decoded in-place when these methods are used.
  // Additionally, requests must be already laid-out according to the FIDL
  // wire-format.
  class InPlace final {
    InPlace() = delete;

   public:
    static ::fidl::DecodeResult<AddResponse> Add(
        ::zx::unowned_channel _client_end,
        ::fidl::DecodedMessage<AddRequest> params,
        ::fidl::BytePart response_buffer);
  };

  // Pure-virtual interface to be implemented by a server.
  class Interface {
   public:
    Interface() = default;
    virtual ~Interface() = default;
    using _Outer = SimpleProtocol;
    using _Base = ::fidl::CompleterBase;

    class AddCompleterBase : public _Base {
     public:
      void Reply(int32_t sum);
      void Reply(::fidl::BytePart _buffer, int32_t sum);
      void Reply(::fidl::DecodedMessage<AddResponse> params);

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

    using AddCompleter = ::fidl::Completer<AddCompleterBase>;

    virtual void Add(int32_t a, int32_t b, AddCompleter::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 bool 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 bool Dispatch(Interface* impl, fidl_msg_t* msg,
                       ::fidl::Transaction* txn);

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

  // Helper functions to fill in the transaction header in a
  // |DecodedMessage<TransactionalMessage>|.
  class SetTransactionHeaderFor final {
    SetTransactionHeaderFor() = delete;

   public:
    static void AddRequest(
        const ::fidl::DecodedMessage<SimpleProtocol::AddRequest>& _msg);
    static void AddResponse(
        const ::fidl::DecodedMessage<SimpleProtocol::AddResponse>& _msg);
  };
};

extern "C" const fidl_type_t v1_fidl_test_nullable_Int32WrapperTable;

struct Int32Wrapper {
  static constexpr const fidl_type_t* Type =
      &v1_fidl_test_nullable_Int32WrapperTable;
  static constexpr uint32_t MaxNumHandles = 0;
  static constexpr uint32_t PrimarySize = 4;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 0;
  static constexpr bool HasPointer = false;

  int32_t val = {};
};

}  // namespace nullable
}  // namespace test
}  // namespace fidl
}  // namespace llcpp

namespace fidl {

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::StructWithNullableVector>
    : public std::true_type {};
static_assert(std::is_standard_layout_v<
              ::llcpp::fidl::test::nullable::StructWithNullableVector>);
static_assert(offsetof(::llcpp::fidl::test::nullable::StructWithNullableVector,
                       val) == 0);
static_assert(
    sizeof(::llcpp::fidl::test::nullable::StructWithNullableVector) ==
    ::llcpp::fidl::test::nullable::StructWithNullableVector::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::StructWithNullableUnion>
    : public std::true_type {};
static_assert(std::is_standard_layout_v<
              ::llcpp::fidl::test::nullable::StructWithNullableUnion>);
static_assert(offsetof(::llcpp::fidl::test::nullable::StructWithNullableUnion,
                       val) == 0);
static_assert(
    sizeof(::llcpp::fidl::test::nullable::StructWithNullableUnion) ==
    ::llcpp::fidl::test::nullable::StructWithNullableUnion::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::StructWithNullableStruct>
    : public std::true_type {};
static_assert(std::is_standard_layout_v<
              ::llcpp::fidl::test::nullable::StructWithNullableStruct>);
static_assert(offsetof(::llcpp::fidl::test::nullable::StructWithNullableStruct,
                       val) == 0);
static_assert(
    sizeof(::llcpp::fidl::test::nullable::StructWithNullableStruct) ==
    ::llcpp::fidl::test::nullable::StructWithNullableStruct::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::StructWithNullableString>
    : public std::true_type {};
static_assert(std::is_standard_layout_v<
              ::llcpp::fidl::test::nullable::StructWithNullableString>);
static_assert(offsetof(::llcpp::fidl::test::nullable::StructWithNullableString,
                       val) == 0);
static_assert(
    sizeof(::llcpp::fidl::test::nullable::StructWithNullableString) ==
    ::llcpp::fidl::test::nullable::StructWithNullableString::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::StructWithNullableRequest>
    : public std::true_type {};
static_assert(std::is_standard_layout_v<
              ::llcpp::fidl::test::nullable::StructWithNullableRequest>);
static_assert(offsetof(::llcpp::fidl::test::nullable::StructWithNullableRequest,
                       val) == 0);
static_assert(
    sizeof(::llcpp::fidl::test::nullable::StructWithNullableRequest) ==
    ::llcpp::fidl::test::nullable::StructWithNullableRequest::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::StructWithNullableProtocol>
    : public std::true_type {};
static_assert(std::is_standard_layout_v<
              ::llcpp::fidl::test::nullable::StructWithNullableProtocol>);
static_assert(
    offsetof(::llcpp::fidl::test::nullable::StructWithNullableProtocol, val) ==
    0);
static_assert(
    sizeof(::llcpp::fidl::test::nullable::StructWithNullableProtocol) ==
    ::llcpp::fidl::test::nullable::StructWithNullableProtocol::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::StructWithNullableHandle>
    : public std::true_type {};
static_assert(std::is_standard_layout_v<
              ::llcpp::fidl::test::nullable::StructWithNullableHandle>);
static_assert(offsetof(::llcpp::fidl::test::nullable::StructWithNullableHandle,
                       val) == 0);
static_assert(
    sizeof(::llcpp::fidl::test::nullable::StructWithNullableHandle) ==
    ::llcpp::fidl::test::nullable::StructWithNullableHandle::PrimarySize);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::SimpleProtocol::AddRequest>
    : public std::true_type {};
template <>
struct IsFidlMessage<::llcpp::fidl::test::nullable::SimpleProtocol::AddRequest>
    : public std::true_type {};
static_assert(
    sizeof(::llcpp::fidl::test::nullable::SimpleProtocol::AddRequest) ==
    ::llcpp::fidl::test::nullable::SimpleProtocol::AddRequest::PrimarySize);
static_assert(
    offsetof(::llcpp::fidl::test::nullable::SimpleProtocol::AddRequest, a) ==
    16);
static_assert(
    offsetof(::llcpp::fidl::test::nullable::SimpleProtocol::AddRequest, b) ==
    20);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::SimpleProtocol::AddResponse>
    : public std::true_type {};
template <>
struct IsFidlMessage<::llcpp::fidl::test::nullable::SimpleProtocol::AddResponse>
    : public std::true_type {};
static_assert(
    sizeof(::llcpp::fidl::test::nullable::SimpleProtocol::AddResponse) ==
    ::llcpp::fidl::test::nullable::SimpleProtocol::AddResponse::PrimarySize);
static_assert(
    offsetof(::llcpp::fidl::test::nullable::SimpleProtocol::AddResponse, sum) ==
    16);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::SimpleUnion>
    : public std::true_type {};
static_assert(
    std::is_standard_layout_v<::llcpp::fidl::test::nullable::SimpleUnion>);

template <>
struct IsFidlType<::llcpp::fidl::test::nullable::Int32Wrapper>
    : public std::true_type {};
static_assert(
    std::is_standard_layout_v<::llcpp::fidl::test::nullable::Int32Wrapper>);
static_assert(offsetof(::llcpp::fidl::test::nullable::Int32Wrapper, val) == 0);
static_assert(sizeof(::llcpp::fidl::test::nullable::Int32Wrapper) ==
              ::llcpp::fidl::test::nullable::Int32Wrapper::PrimarySize);

}  // namespace fidl