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

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

#pragma once

#include <exampleusing/llcpp/fidl.h>
#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 <zircon/fidl.h>

namespace llcpp {

namespace example {

class ExampleProtocol;
class ExampleXUnion;
class ExampleUnion;
class ExampleTable;
struct ExampleStruct;
enum class ExampleEnum : uint32_t {
  MEMBER = 1u,
};

class ExampleBits final {
 public:
  constexpr ExampleBits() : value_(0u) {}
  explicit constexpr ExampleBits(uint32_t value) : value_(value) {}
  const static ExampleBits MEMBER;
  const static ExampleBits mask;

  explicit constexpr inline operator uint32_t() const { return value_; }
  explicit constexpr inline operator bool() const {
    return static_cast<bool>(value_);
  }
  constexpr inline bool operator==(const ExampleBits& other) const {
    return value_ == other.value_;
  }
  constexpr inline bool operator!=(const ExampleBits& other) const {
    return value_ != other.value_;
  }
  constexpr inline ExampleBits operator~() const;
  constexpr inline ExampleBits operator|(const ExampleBits& other) const;
  constexpr inline ExampleBits operator&(const ExampleBits& other) const;
  constexpr inline ExampleBits operator^(const ExampleBits& other) const;
  constexpr inline void operator|=(const ExampleBits& other);
  constexpr inline void operator&=(const ExampleBits& other);
  constexpr inline void operator^=(const ExampleBits& other);

 private:
  uint32_t value_;
};
constexpr const ::llcpp::example::ExampleBits ExampleBits::MEMBER =
    ::llcpp::example::ExampleBits(1u);
constexpr const ::llcpp::example::ExampleBits ExampleBits::mask =
    ::llcpp::example::ExampleBits(1u);

constexpr inline ::llcpp::example::ExampleBits ExampleBits::operator~() const {
  return ::llcpp::example::ExampleBits(
      static_cast<uint32_t>(~this->value_ & mask.value_));
}

constexpr inline ::llcpp::example::ExampleBits ExampleBits::operator|(
    const ::llcpp::example::ExampleBits& other) const {
  return ::llcpp::example::ExampleBits(
      static_cast<uint32_t>(this->value_ | other.value_));
}

constexpr inline ::llcpp::example::ExampleBits ExampleBits::operator&(
    const ::llcpp::example::ExampleBits& other) const {
  return ::llcpp::example::ExampleBits(
      static_cast<uint32_t>(this->value_ & other.value_));
}

constexpr inline ::llcpp::example::ExampleBits ExampleBits::operator^(
    const ::llcpp::example::ExampleBits& other) const {
  return ::llcpp::example::ExampleBits(
      static_cast<uint32_t>(this->value_ ^ other.value_));
}

constexpr inline void ExampleBits::operator|=(
    const ::llcpp::example::ExampleBits& other) {
  this->value_ |= other.value_;
}

constexpr inline void ExampleBits::operator&=(
    const ::llcpp::example::ExampleBits& other) {
  this->value_ &= other.value_;
}

constexpr inline void ExampleBits::operator^=(
    const ::llcpp::example::ExampleBits& other) {
  this->value_ ^= other.value_;
}

extern "C" const fidl_type_t v1_example_ExampleXUnionTable;

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

  ExampleXUnion(ExampleXUnion&&) = default;
  ExampleXUnion& operator=(ExampleXUnion&&) = default;

  ~ExampleXUnion() { reset_ptr(nullptr); }

  enum class Tag : fidl_xunion_tag_t {
    kVariant = 1,  // 0x1
    kUnknown = ::std::numeric_limits<::fidl_union_tag_t>::max(),
  };

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

  bool is_variant() const { return ordinal_ == Ordinal::kVariant; }

  static ExampleXUnion WithVariant(::fidl::tracking_ptr<uint32_t>&& val) {
    ExampleXUnion result;
    result.set_variant(std::move(val));
    return result;
  }

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

  uint32_t& mutable_variant() {
    ZX_ASSERT(ordinal_ == Ordinal::kVariant);
    return *static_cast<uint32_t*>(envelope_.data.get());
  }
  const uint32_t& variant() const {
    ZX_ASSERT(ordinal_ == Ordinal::kVariant);
    return *static_cast<uint32_t*>(envelope_.data.get());
  }
  void* unknownData() const {
    ZX_ASSERT(which() == Tag::kUnknown);
    return envelope_.data.get();
  }
  Tag which() const;

  static constexpr const fidl_type_t* Type = &v1_example_ExampleXUnionTable;
  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,
    kVariant = 1,  // 0x1
  };

  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<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 v1_example_ExampleUnionTable;

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

  ExampleUnion(ExampleUnion&&) = default;
  ExampleUnion& operator=(ExampleUnion&&) = default;

  ~ExampleUnion() { reset_ptr(nullptr); }

  enum class Tag : fidl_xunion_tag_t {
    kVariant = 1,  // 0x1
  };

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

  bool is_variant() const { return ordinal_ == Ordinal::kVariant; }

  static ExampleUnion WithVariant(::fidl::tracking_ptr<uint32_t>&& val) {
    ExampleUnion result;
    result.set_variant(std::move(val));
    return result;
  }

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

  uint32_t& mutable_variant() {
    ZX_ASSERT(ordinal_ == Ordinal::kVariant);
    return *static_cast<uint32_t*>(envelope_.data.get());
  }
  const uint32_t& variant() const {
    ZX_ASSERT(ordinal_ == Ordinal::kVariant);
    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 = &v1_example_ExampleUnionTable;
  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,
    kVariant = 1,  // 0x1
  };

  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<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 v1_example_ExampleTableTable;

class ExampleTable final {
 public:
  // Returns whether no field is set.
  bool IsEmpty() const { return max_ordinal_ == 0; }

  const uint32_t& member() const {
    ZX_ASSERT(has_member());
    return *frame_ptr_->member_.data;
  }
  uint32_t& member() {
    ZX_ASSERT(has_member());
    return *frame_ptr_->member_.data;
  }
  bool has_member() const {
    return max_ordinal_ >= 1 && frame_ptr_->member_.data != nullptr;
  }

  ExampleTable() = default;
  ~ExampleTable() = default;
  ExampleTable(ExampleTable&& other) noexcept = default;
  ExampleTable& operator=(ExampleTable&& other) noexcept = default;

  static constexpr const fidl_type_t* Type = &v1_example_ExampleTableTable;
  static constexpr uint32_t MaxNumHandles = 0;
  static constexpr uint32_t PrimarySize = 16;
  [[maybe_unused]] static constexpr uint32_t MaxOutOfLine = 24;
  static constexpr bool HasPointer = true;

  class Builder;
  class UnownedBuilder;

  class Frame final {
   public:
    Frame() = default;
    // In its intended usage, Frame will be referenced by a tracking_ptr. If the
    // tracking_ptr is assigned before a move or copy, then it will reference
    // the old invalid object. Because this is unsafe, copies are disallowed and
    // moves are only allowed by friend classes that operate safely.
    Frame(const Frame&) = delete;
    Frame& operator=(const Frame&) = delete;

   private:
    Frame(Frame&&) noexcept = default;
    Frame& operator=(Frame&&) noexcept = default;
    ::fidl::Envelope<uint32_t> member_;

    friend class ExampleTable;
    friend class ExampleTable::Builder;
    friend class ExampleTable::UnownedBuilder;
  };

 private:
  ExampleTable(uint64_t max_ordinal, ::fidl::tracking_ptr<Frame>&& frame_ptr)
      : max_ordinal_(max_ordinal), frame_ptr_(std::move(frame_ptr)) {}
  uint64_t max_ordinal_ = 0;
  ::fidl::tracking_ptr<Frame> frame_ptr_;
};

// ExampleTable::Builder builds ExampleTable.
// Usage:
// ExampleTable val =
// ExampleTable::Builder(std::make_unique<ExampleTable::Frame>())
// .set_member(ptr)
// .build();
class ExampleTable::Builder final {
 public:
  ~Builder() = default;
  Builder() = delete;
  Builder(::fidl::tracking_ptr<ExampleTable::Frame>&& frame_ptr)
      : max_ordinal_(0), frame_ptr_(std::move(frame_ptr)) {}

  Builder(Builder&& other) noexcept = default;
  Builder& operator=(Builder&& other) noexcept = default;

  Builder(const Builder& other) = delete;
  Builder& operator=(const Builder& other) = delete;

  Builder&& set_member(::fidl::tracking_ptr<uint32_t> elem) {
    frame_ptr_->member_.data = std::move(elem);
    if (max_ordinal_ < 1) {
      // Note: the table size is not currently reduced if nullptr is set.
      // This is possible to reconsider in the future.
      max_ordinal_ = 1;
    }
    return std::move(*this);
  }

  ExampleTable build() {
    return ExampleTable(max_ordinal_, std::move(frame_ptr_));
  }

 private:
  uint64_t max_ordinal_ = 0;
  ::fidl::tracking_ptr<ExampleTable::Frame> frame_ptr_;
};

// UnownedBuilder acts like Builder but directly owns its Frame, simplifying
// working with unowned data.
class ExampleTable::UnownedBuilder final {
 public:
  ~UnownedBuilder() = default;
  UnownedBuilder() noexcept = default;
  UnownedBuilder(UnownedBuilder&& other) noexcept = default;
  UnownedBuilder& operator=(UnownedBuilder&& other) noexcept = default;

  UnownedBuilder&& set_member(::fidl::tracking_ptr<uint32_t> elem) {
    ZX_ASSERT(elem);
    frame_.member_.data = std::move(elem);
    if (max_ordinal_ < 1) {
      max_ordinal_ = 1;
    }
    return std::move(*this);
  }

  ExampleTable build() {
    return ExampleTable(max_ordinal_, ::fidl::unowned_ptr(&frame_));
  }

 private:
  uint64_t max_ordinal_ = 0;
  ExampleTable::Frame frame_;
};

extern "C" const fidl_type_t v1_example_ExampleProtocolMethodRequestTable;
extern "C" const fidl_type_t v1_example_ExampleProtocolMethodResponseTable;

class ExampleProtocol final {
  ExampleProtocol() = delete;

 public:
  struct MethodRequest final {
    FIDL_ALIGNDECL
    fidl_message_header_t _hdr;
    ::llcpp::exampleusing::Empty arg;

    static constexpr const fidl_type_t* Type =
        &v1_example_ExampleProtocolMethodRequestTable;
    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;
  };

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

   private:
    class Method_Impl final : private ::fidl::internal::StatusAndError {
      using Super = ::fidl::internal::StatusAndError;

     public:
      Method_Impl(::zx::unowned_channel _client_end,
                  ::llcpp::exampleusing::Empty arg);
      ~Method_Impl() = default;
      Method_Impl(Method_Impl&& other) = default;
      Method_Impl& operator=(Method_Impl&& other) = default;
      using Super::error;
      using Super::ok;
      using Super::status;
    };

   public:
    using Method = Method_Impl;
  };

  // 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:
    class Method_Impl final : private ::fidl::internal::StatusAndError {
      using Super = ::fidl::internal::StatusAndError;

     public:
      Method_Impl(::zx::unowned_channel _client_end,
                  ::fidl::BytePart _request_buffer,
                  ::llcpp::exampleusing::Empty arg);
      ~Method_Impl() = default;
      Method_Impl(Method_Impl&& other) = default;
      Method_Impl& operator=(Method_Impl&& other) = default;
      using Super::error;
      using Super::ok;
      using Super::status;
    };

   public:
    using Method = Method_Impl;
  };

  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 24 bytes of message buffer on the stack. No heap allocation
    // necessary.
    ResultOf::Method Method(::llcpp::exampleusing::Empty arg);

    // Caller provides the backing storage for FIDL message via request and
    // response buffers.
    UnownedResultOf::Method Method(::fidl::BytePart _request_buffer,
                                   ::llcpp::exampleusing::Empty arg);

   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 24 bytes of message buffer on the stack. No heap allocation
    // necessary.
    static ResultOf::Method Method(::zx::unowned_channel _client_end,
                                   ::llcpp::exampleusing::Empty arg);

    // Caller provides the backing storage for FIDL message via request and
    // response buffers.
    static UnownedResultOf::Method Method(::zx::unowned_channel _client_end,
                                          ::fidl::BytePart _request_buffer,
                                          ::llcpp::exampleusing::Empty arg);
  };

  // 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::internal::StatusAndError Method(
        ::zx::unowned_channel _client_end,
        ::fidl::DecodedMessage<MethodRequest> params);
  };

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

    using MethodCompleter = ::fidl::Completer<>;

    virtual void Method(::llcpp::exampleusing::Empty arg,
                        MethodCompleter::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 MethodRequest(
        const ::fidl::DecodedMessage<ExampleProtocol::MethodRequest>& _msg);
  };
};

extern "C" const fidl_type_t v1_example_ExampleStructTable;

struct ExampleStruct {
  static constexpr const fidl_type_t* Type = &v1_example_ExampleStructTable;
  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;

  uint32_t member = {};
};

constexpr uint32_t EXAMPLE_CONST = 0u;

}  // namespace example
}  // namespace llcpp

namespace fidl {

template <>
struct IsFidlType<::llcpp::example::ExampleProtocol::MethodRequest>
    : public std::true_type {};
template <>
struct IsFidlMessage<::llcpp::example::ExampleProtocol::MethodRequest>
    : public std::true_type {};
static_assert(sizeof(::llcpp::example::ExampleProtocol::MethodRequest) ==
              ::llcpp::example::ExampleProtocol::MethodRequest::PrimarySize);
static_assert(offsetof(::llcpp::example::ExampleProtocol::MethodRequest, arg) ==
              16);

template <>
struct IsFidlType<::llcpp::example::ExampleXUnion> : public std::true_type {};
static_assert(std::is_standard_layout_v<::llcpp::example::ExampleXUnion>);

template <>
struct IsFidlType<::llcpp::example::ExampleUnion> : public std::true_type {};
static_assert(std::is_standard_layout_v<::llcpp::example::ExampleUnion>);

template <>
struct IsFidlType<::llcpp::example::ExampleTable> : public std::true_type {};
static_assert(std::is_standard_layout_v<::llcpp::example::ExampleTable>);

template <>
struct IsFidlType<::llcpp::example::ExampleStruct> : public std::true_type {};
static_assert(std::is_standard_layout_v<::llcpp::example::ExampleStruct>);
static_assert(offsetof(::llcpp::example::ExampleStruct, member) == 0);
static_assert(sizeof(::llcpp::example::ExampleStruct) ==
              ::llcpp::example::ExampleStruct::PrimarySize);

template <>
struct IsFidlType<::llcpp::example::ExampleBits> : public std::true_type {};
static_assert(std::is_standard_layout_v<::llcpp::example::ExampleBits>);
static_assert(sizeof(::llcpp::example::ExampleBits) == sizeof(uint32_t));

}  // namespace fidl