fidl_fuchsia_examples_calculator/

fidl_fuchsia_examples_calculator.rs

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

#![warn(clippy::all)]
#![allow(unused_parens, unused_mut, unused_imports, nonstandard_style)]

use bitflags::bitflags;
use fidl::client::QueryResponseFut;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use fidl::endpoints::{ControlHandle as _, Responder as _};
pub use fidl_fuchsia_examples_calculator_common::*;
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct CalculatorMarker;

impl fidl::endpoints::ProtocolMarker for CalculatorMarker {
    type Proxy = CalculatorProxy;
    type RequestStream = CalculatorRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = CalculatorSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.examples.calculator.Calculator";
}
impl fidl::endpoints::DiscoverableProtocolMarker for CalculatorMarker {}

pub trait CalculatorProxyInterface: Send + Sync {
    type AddResponseFut: std::future::Future<Output = Result<f64, fidl::Error>> + Send;
    fn r#add(&self, a: f64, b: f64) -> Self::AddResponseFut;
    type SubtractResponseFut: std::future::Future<Output = Result<f64, fidl::Error>> + Send;
    fn r#subtract(&self, a: f64, b: f64) -> Self::SubtractResponseFut;
    type MultiplyResponseFut: std::future::Future<Output = Result<f64, fidl::Error>> + Send;
    fn r#multiply(&self, a: f64, b: f64) -> Self::MultiplyResponseFut;
    type DivideResponseFut: std::future::Future<Output = Result<f64, fidl::Error>> + Send;
    fn r#divide(&self, dividend: f64, divisor: f64) -> Self::DivideResponseFut;
    type PowResponseFut: std::future::Future<Output = Result<f64, fidl::Error>> + Send;
    fn r#pow(&self, base: f64, exponent: f64) -> Self::PowResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct CalculatorSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for CalculatorSynchronousProxy {
    type Proxy = CalculatorProxy;
    type Protocol = CalculatorMarker;

    fn from_channel(inner: fidl::Channel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    fn as_channel(&self) -> &fidl::Channel {
        self.client.as_channel()
    }
}

#[cfg(target_os = "fuchsia")]
impl CalculatorSynchronousProxy {
    pub fn new(channel: fidl::Channel) -> Self {
        let protocol_name = <CalculatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::sync::Client::new(channel, protocol_name) }
    }

    pub fn into_channel(self) -> fidl::Channel {
        self.client.into_channel()
    }

    /// Waits until an event arrives and returns it. It is safe for other
    /// threads to make concurrent requests while waiting for an event.
    pub fn wait_for_event(
        &self,
        deadline: zx::MonotonicInstant,
    ) -> Result<CalculatorEvent, fidl::Error> {
        CalculatorEvent::decode(self.client.wait_for_event(deadline)?)
    }

    /// Adds two numbers together and returns their `sum`.
    ///
    /// For example, with `a` being 4.5 and `b` being 3.2, the response `sum` is
    /// 7.7.
    ///
    /// + request `a` the first number to be added.
    /// + request `b` the second number to be added.
    /// - response `sum` the sum of a and b.
    pub fn r#add(
        &self,
        mut a: f64,
        mut b: f64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<f64, fidl::Error> {
        let _response = self.client.send_query::<CalculatorAddRequest, CalculatorAddResponse>(
            (a, b),
            0x5f2286171d9ff91e,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.sum)
    }

    /// Subtracts two numbers and returns their `difference`.
    ///
    /// For example, with `a` being 7.7 and `b` being 3.2, the response
    /// `difference` is 4.5
    ///
    /// + request `a` the number to be subracted _from_.
    /// + request `b` the number to subtract.
    /// - response `difference` the difference between `a` and `b`.
    pub fn r#subtract(
        &self,
        mut a: f64,
        mut b: f64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<f64, fidl::Error> {
        let _response =
            self.client.send_query::<CalculatorSubtractRequest, CalculatorSubtractResponse>(
                (a, b),
                0x64ce8ff043420d78,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.difference)
    }

    /// Multiplies two numbers and returns their `product`.
    ///
    /// For example, with `a` being 1.5 and `b` being 2.0, the response
    /// `product` is 3.0
    ///
    /// + request `a` the first number used to calculatorulate the `product`.
    /// + request `b` the second number used to calculatorulate the `product`.
    /// - response `product` the result of multiplying `a` and `b`.
    pub fn r#multiply(
        &self,
        mut a: f64,
        mut b: f64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<f64, fidl::Error> {
        let _response =
            self.client.send_query::<CalculatorMultiplyRequest, CalculatorMultiplyResponse>(
                (a, b),
                0x4d6fedd51609fc35,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.product)
    }

    /// Divides one number by another and return the `quotient`.
    ///
    /// For example with a `dividend` of 2.0 and a `divisor` of 4.0, the
    /// response `quotient` is 0.5.
    ///
    /// + request `dividend` the number to divide with.
    /// + request `divisor` the number to divide into.
    /// - response `quotient` the result of dividing the `dividend` into the `divisor`.
    pub fn r#divide(
        &self,
        mut dividend: f64,
        mut divisor: f64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<f64, fidl::Error> {
        let _response =
            self.client.send_query::<CalculatorDivideRequest, CalculatorDivideResponse>(
                (dividend, divisor),
                0x4dc343d7222988ba,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.quotient)
    }

    /// Takes `base` to the `exponent` and returns the `power`.
    ///
    /// For example with a `base` of 3.0 and an `exponent` of 4.0, the response
    /// `power` is 81.0.
    ///
    /// + request `base` the number to multiply by itself.
    /// + request `exponent` the number of times to successively multiply
    /// `base`.
    /// - response `power` the result of multiplying `base` by itself `exponent`
    /// times..
    pub fn r#pow(
        &self,
        mut base: f64,
        mut exponent: f64,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<f64, fidl::Error> {
        let _response = self.client.send_query::<CalculatorPowRequest, CalculatorPowResponse>(
            (base, exponent),
            0x3467780dee7ba196,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.power)
    }
}

#[cfg(target_os = "fuchsia")]
impl From<CalculatorSynchronousProxy> for zx::Handle {
    fn from(value: CalculatorSynchronousProxy) -> Self {
        value.into_channel().into()
    }
}

#[cfg(target_os = "fuchsia")]
impl From<fidl::Channel> for CalculatorSynchronousProxy {
    fn from(value: fidl::Channel) -> Self {
        Self::new(value)
    }
}

#[derive(Debug, Clone)]
pub struct CalculatorProxy {
    client: fidl::client::Client<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl fidl::endpoints::Proxy for CalculatorProxy {
    type Protocol = CalculatorMarker;

    fn from_channel(inner: ::fidl::AsyncChannel) -> Self {
        Self::new(inner)
    }

    fn into_channel(self) -> Result<::fidl::AsyncChannel, Self> {
        self.client.into_channel().map_err(|client| Self { client })
    }

    fn as_channel(&self) -> &::fidl::AsyncChannel {
        self.client.as_channel()
    }
}

impl CalculatorProxy {
    /// Create a new Proxy for fuchsia.examples.calculator/Calculator.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <CalculatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

    /// Get a Stream of events from the remote end of the protocol.
    ///
    /// # Panics
    ///
    /// Panics if the event stream was already taken.
    pub fn take_event_stream(&self) -> CalculatorEventStream {
        CalculatorEventStream { event_receiver: self.client.take_event_receiver() }
    }

    /// Adds two numbers together and returns their `sum`.
    ///
    /// For example, with `a` being 4.5 and `b` being 3.2, the response `sum` is
    /// 7.7.
    ///
    /// + request `a` the first number to be added.
    /// + request `b` the second number to be added.
    /// - response `sum` the sum of a and b.
    pub fn r#add(
        &self,
        mut a: f64,
        mut b: f64,
    ) -> fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        CalculatorProxyInterface::r#add(self, a, b)
    }

    /// Subtracts two numbers and returns their `difference`.
    ///
    /// For example, with `a` being 7.7 and `b` being 3.2, the response
    /// `difference` is 4.5
    ///
    /// + request `a` the number to be subracted _from_.
    /// + request `b` the number to subtract.
    /// - response `difference` the difference between `a` and `b`.
    pub fn r#subtract(
        &self,
        mut a: f64,
        mut b: f64,
    ) -> fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        CalculatorProxyInterface::r#subtract(self, a, b)
    }

    /// Multiplies two numbers and returns their `product`.
    ///
    /// For example, with `a` being 1.5 and `b` being 2.0, the response
    /// `product` is 3.0
    ///
    /// + request `a` the first number used to calculatorulate the `product`.
    /// + request `b` the second number used to calculatorulate the `product`.
    /// - response `product` the result of multiplying `a` and `b`.
    pub fn r#multiply(
        &self,
        mut a: f64,
        mut b: f64,
    ) -> fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        CalculatorProxyInterface::r#multiply(self, a, b)
    }

    /// Divides one number by another and return the `quotient`.
    ///
    /// For example with a `dividend` of 2.0 and a `divisor` of 4.0, the
    /// response `quotient` is 0.5.
    ///
    /// + request `dividend` the number to divide with.
    /// + request `divisor` the number to divide into.
    /// - response `quotient` the result of dividing the `dividend` into the `divisor`.
    pub fn r#divide(
        &self,
        mut dividend: f64,
        mut divisor: f64,
    ) -> fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        CalculatorProxyInterface::r#divide(self, dividend, divisor)
    }

    /// Takes `base` to the `exponent` and returns the `power`.
    ///
    /// For example with a `base` of 3.0 and an `exponent` of 4.0, the response
    /// `power` is 81.0.
    ///
    /// + request `base` the number to multiply by itself.
    /// + request `exponent` the number of times to successively multiply
    /// `base`.
    /// - response `power` the result of multiplying `base` by itself `exponent`
    /// times..
    pub fn r#pow(
        &self,
        mut base: f64,
        mut exponent: f64,
    ) -> fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect> {
        CalculatorProxyInterface::r#pow(self, base, exponent)
    }
}

impl CalculatorProxyInterface for CalculatorProxy {
    type AddResponseFut =
        fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#add(&self, mut a: f64, mut b: f64) -> Self::AddResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<f64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                CalculatorAddResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5f2286171d9ff91e,
            >(_buf?)?;
            Ok(_response.sum)
        }
        self.client.send_query_and_decode::<CalculatorAddRequest, f64>(
            (a, b),
            0x5f2286171d9ff91e,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type SubtractResponseFut =
        fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#subtract(&self, mut a: f64, mut b: f64) -> Self::SubtractResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<f64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                CalculatorSubtractResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x64ce8ff043420d78,
            >(_buf?)?;
            Ok(_response.difference)
        }
        self.client.send_query_and_decode::<CalculatorSubtractRequest, f64>(
            (a, b),
            0x64ce8ff043420d78,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type MultiplyResponseFut =
        fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#multiply(&self, mut a: f64, mut b: f64) -> Self::MultiplyResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<f64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                CalculatorMultiplyResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x4d6fedd51609fc35,
            >(_buf?)?;
            Ok(_response.product)
        }
        self.client.send_query_and_decode::<CalculatorMultiplyRequest, f64>(
            (a, b),
            0x4d6fedd51609fc35,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type DivideResponseFut =
        fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#divide(&self, mut dividend: f64, mut divisor: f64) -> Self::DivideResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<f64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                CalculatorDivideResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x4dc343d7222988ba,
            >(_buf?)?;
            Ok(_response.quotient)
        }
        self.client.send_query_and_decode::<CalculatorDivideRequest, f64>(
            (dividend, divisor),
            0x4dc343d7222988ba,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type PowResponseFut =
        fidl::client::QueryResponseFut<f64, fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#pow(&self, mut base: f64, mut exponent: f64) -> Self::PowResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<f64, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                CalculatorPowResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x3467780dee7ba196,
            >(_buf?)?;
            Ok(_response.power)
        }
        self.client.send_query_and_decode::<CalculatorPowRequest, f64>(
            (base, exponent),
            0x3467780dee7ba196,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

pub struct CalculatorEventStream {
    event_receiver: fidl::client::EventReceiver<fidl::encoding::DefaultFuchsiaResourceDialect>,
}

impl std::marker::Unpin for CalculatorEventStream {}

impl futures::stream::FusedStream for CalculatorEventStream {
    fn is_terminated(&self) -> bool {
        self.event_receiver.is_terminated()
    }
}

impl futures::Stream for CalculatorEventStream {
    type Item = Result<CalculatorEvent, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        match futures::ready!(futures::stream::StreamExt::poll_next_unpin(
            &mut self.event_receiver,
            cx
        )?) {
            Some(buf) => std::task::Poll::Ready(Some(CalculatorEvent::decode(buf))),
            None => std::task::Poll::Ready(None),
        }
    }
}

#[derive(Debug)]
pub enum CalculatorEvent {}

impl CalculatorEvent {
    /// Decodes a message buffer as a [`CalculatorEvent`].
    fn decode(
        mut buf: <fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc,
    ) -> Result<CalculatorEvent, fidl::Error> {
        let (bytes, _handles) = buf.split_mut();
        let (tx_header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;
        debug_assert_eq!(tx_header.tx_id, 0);
        match tx_header.ordinal {
            _ => Err(fidl::Error::UnknownOrdinal {
                ordinal: tx_header.ordinal,
                protocol_name: <CalculatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
            }),
        }
    }
}

/// A Stream of incoming requests for fuchsia.examples.calculator/Calculator.
pub struct CalculatorRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

impl std::marker::Unpin for CalculatorRequestStream {}

impl futures::stream::FusedStream for CalculatorRequestStream {
    fn is_terminated(&self) -> bool {
        self.is_terminated
    }
}

impl fidl::endpoints::RequestStream for CalculatorRequestStream {
    type Protocol = CalculatorMarker;
    type ControlHandle = CalculatorControlHandle;

    fn from_channel(channel: ::fidl::AsyncChannel) -> Self {
        Self { inner: std::sync::Arc::new(fidl::ServeInner::new(channel)), is_terminated: false }
    }

    fn control_handle(&self) -> Self::ControlHandle {
        CalculatorControlHandle { inner: self.inner.clone() }
    }

    fn into_inner(
        self,
    ) -> (::std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>, bool)
    {
        (self.inner, self.is_terminated)
    }

    fn from_inner(
        inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
        is_terminated: bool,
    ) -> Self {
        Self { inner, is_terminated }
    }
}

impl futures::Stream for CalculatorRequestStream {
    type Item = Result<CalculatorRequest, fidl::Error>;

    fn poll_next(
        mut self: std::pin::Pin<&mut Self>,
        cx: &mut std::task::Context<'_>,
    ) -> std::task::Poll<Option<Self::Item>> {
        let this = &mut *self;
        if this.inner.check_shutdown(cx) {
            this.is_terminated = true;
            return std::task::Poll::Ready(None);
        }
        if this.is_terminated {
            panic!("polled CalculatorRequestStream after completion");
        }
        fidl::encoding::with_tls_decode_buf::<_, fidl::encoding::DefaultFuchsiaResourceDialect>(
            |bytes, handles| {
                match this.inner.channel().read_etc(cx, bytes, handles) {
                    std::task::Poll::Ready(Ok(())) => {}
                    std::task::Poll::Pending => return std::task::Poll::Pending,
                    std::task::Poll::Ready(Err(zx_status::Status::PEER_CLOSED)) => {
                        this.is_terminated = true;
                        return std::task::Poll::Ready(None);
                    }
                    std::task::Poll::Ready(Err(e)) => {
                        return std::task::Poll::Ready(Some(Err(fidl::Error::ServerRequestRead(
                            e.into(),
                        ))))
                    }
                }

                // A message has been received from the channel
                let (header, _body_bytes) = fidl::encoding::decode_transaction_header(bytes)?;

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x5f2286171d9ff91e => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            CalculatorAddRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<CalculatorAddRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = CalculatorControlHandle { inner: this.inner.clone() };
                        Ok(CalculatorRequest::Add {
                            a: req.a,
                            b: req.b,

                            responder: CalculatorAddResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x64ce8ff043420d78 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            CalculatorSubtractRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<CalculatorSubtractRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = CalculatorControlHandle { inner: this.inner.clone() };
                        Ok(CalculatorRequest::Subtract {
                            a: req.a,
                            b: req.b,

                            responder: CalculatorSubtractResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x4d6fedd51609fc35 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            CalculatorMultiplyRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<CalculatorMultiplyRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = CalculatorControlHandle { inner: this.inner.clone() };
                        Ok(CalculatorRequest::Multiply {
                            a: req.a,
                            b: req.b,

                            responder: CalculatorMultiplyResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x4dc343d7222988ba => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            CalculatorDivideRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<CalculatorDivideRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = CalculatorControlHandle { inner: this.inner.clone() };
                        Ok(CalculatorRequest::Divide {
                            dividend: req.dividend,
                            divisor: req.divisor,

                            responder: CalculatorDivideResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x3467780dee7ba196 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            CalculatorPowRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<CalculatorPowRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = CalculatorControlHandle { inner: this.inner.clone() };
                        Ok(CalculatorRequest::Pow {
                            base: req.base,
                            exponent: req.exponent,

                            responder: CalculatorPowResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    _ => Err(fidl::Error::UnknownOrdinal {
                        ordinal: header.ordinal,
                        protocol_name:
                            <CalculatorMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME,
                    }),
                }))
            },
        )
    }
}

/// A protocol for a simple calculator.
///
/// Supports the following operations:
/// + [`fuchsia.examples.calculator/Calculator.Add`]
/// + [`fuchsia.examples.calculator/Calculator.Subtract`]
/// + [`fuchsia.examples.calculator/Calculator.Multiply`]
/// + [`fuchsia.examples.calculator/Calculator.Divide`]
/// + [`fuchsia.examples.calculator/Calculator.Pow`]
#[derive(Debug)]
pub enum CalculatorRequest {
    /// Adds two numbers together and returns their `sum`.
    ///
    /// For example, with `a` being 4.5 and `b` being 3.2, the response `sum` is
    /// 7.7.
    ///
    /// + request `a` the first number to be added.
    /// + request `b` the second number to be added.
    /// - response `sum` the sum of a and b.
    Add { a: f64, b: f64, responder: CalculatorAddResponder },
    /// Subtracts two numbers and returns their `difference`.
    ///
    /// For example, with `a` being 7.7 and `b` being 3.2, the response
    /// `difference` is 4.5
    ///
    /// + request `a` the number to be subracted _from_.
    /// + request `b` the number to subtract.
    /// - response `difference` the difference between `a` and `b`.
    Subtract { a: f64, b: f64, responder: CalculatorSubtractResponder },
    /// Multiplies two numbers and returns their `product`.
    ///
    /// For example, with `a` being 1.5 and `b` being 2.0, the response
    /// `product` is 3.0
    ///
    /// + request `a` the first number used to calculatorulate the `product`.
    /// + request `b` the second number used to calculatorulate the `product`.
    /// - response `product` the result of multiplying `a` and `b`.
    Multiply { a: f64, b: f64, responder: CalculatorMultiplyResponder },
    /// Divides one number by another and return the `quotient`.
    ///
    /// For example with a `dividend` of 2.0 and a `divisor` of 4.0, the
    /// response `quotient` is 0.5.
    ///
    /// + request `dividend` the number to divide with.
    /// + request `divisor` the number to divide into.
    /// - response `quotient` the result of dividing the `dividend` into the `divisor`.
    Divide { dividend: f64, divisor: f64, responder: CalculatorDivideResponder },
    /// Takes `base` to the `exponent` and returns the `power`.
    ///
    /// For example with a `base` of 3.0 and an `exponent` of 4.0, the response
    /// `power` is 81.0.
    ///
    /// + request `base` the number to multiply by itself.
    /// + request `exponent` the number of times to successively multiply
    /// `base`.
    /// - response `power` the result of multiplying `base` by itself `exponent`
    /// times..
    Pow { base: f64, exponent: f64, responder: CalculatorPowResponder },
}

impl CalculatorRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_add(self) -> Option<(f64, f64, CalculatorAddResponder)> {
        if let CalculatorRequest::Add { a, b, responder } = self {
            Some((a, b, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_subtract(self) -> Option<(f64, f64, CalculatorSubtractResponder)> {
        if let CalculatorRequest::Subtract { a, b, responder } = self {
            Some((a, b, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_multiply(self) -> Option<(f64, f64, CalculatorMultiplyResponder)> {
        if let CalculatorRequest::Multiply { a, b, responder } = self {
            Some((a, b, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_divide(self) -> Option<(f64, f64, CalculatorDivideResponder)> {
        if let CalculatorRequest::Divide { dividend, divisor, responder } = self {
            Some((dividend, divisor, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_pow(self) -> Option<(f64, f64, CalculatorPowResponder)> {
        if let CalculatorRequest::Pow { base, exponent, responder } = self {
            Some((base, exponent, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            CalculatorRequest::Add { .. } => "add",
            CalculatorRequest::Subtract { .. } => "subtract",
            CalculatorRequest::Multiply { .. } => "multiply",
            CalculatorRequest::Divide { .. } => "divide",
            CalculatorRequest::Pow { .. } => "pow",
        }
    }
}

#[derive(Debug, Clone)]
pub struct CalculatorControlHandle {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
}

impl fidl::endpoints::ControlHandle for CalculatorControlHandle {
    fn shutdown(&self) {
        self.inner.shutdown()
    }
    fn shutdown_with_epitaph(&self, status: zx_status::Status) {
        self.inner.shutdown_with_epitaph(status)
    }

    fn is_closed(&self) -> bool {
        self.inner.channel().is_closed()
    }
    fn on_closed(&self) -> fidl::OnSignalsRef<'_> {
        self.inner.channel().on_closed()
    }

    #[cfg(target_os = "fuchsia")]
    fn signal_peer(
        &self,
        clear_mask: zx::Signals,
        set_mask: zx::Signals,
    ) -> Result<(), zx_status::Status> {
        use fidl::Peered;
        self.inner.channel().signal_peer(clear_mask, set_mask)
    }
}

impl CalculatorControlHandle {}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct CalculatorAddResponder {
    control_handle: std::mem::ManuallyDrop<CalculatorControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`CalculatorControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for CalculatorAddResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for CalculatorAddResponder {
    type ControlHandle = CalculatorControlHandle;

    fn control_handle(&self) -> &CalculatorControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl CalculatorAddResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut sum: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(sum);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut sum: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(sum);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut sum: f64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<CalculatorAddResponse>(
            (sum,),
            self.tx_id,
            0x5f2286171d9ff91e,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct CalculatorSubtractResponder {
    control_handle: std::mem::ManuallyDrop<CalculatorControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`CalculatorControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for CalculatorSubtractResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for CalculatorSubtractResponder {
    type ControlHandle = CalculatorControlHandle;

    fn control_handle(&self) -> &CalculatorControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl CalculatorSubtractResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut difference: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(difference);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut difference: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(difference);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut difference: f64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<CalculatorSubtractResponse>(
            (difference,),
            self.tx_id,
            0x64ce8ff043420d78,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct CalculatorMultiplyResponder {
    control_handle: std::mem::ManuallyDrop<CalculatorControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`CalculatorControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for CalculatorMultiplyResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for CalculatorMultiplyResponder {
    type ControlHandle = CalculatorControlHandle;

    fn control_handle(&self) -> &CalculatorControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl CalculatorMultiplyResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut product: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(product);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut product: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(product);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut product: f64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<CalculatorMultiplyResponse>(
            (product,),
            self.tx_id,
            0x4d6fedd51609fc35,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct CalculatorDivideResponder {
    control_handle: std::mem::ManuallyDrop<CalculatorControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`CalculatorControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for CalculatorDivideResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for CalculatorDivideResponder {
    type ControlHandle = CalculatorControlHandle;

    fn control_handle(&self) -> &CalculatorControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl CalculatorDivideResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut quotient: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(quotient);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut quotient: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(quotient);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut quotient: f64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<CalculatorDivideResponse>(
            (quotient,),
            self.tx_id,
            0x4dc343d7222988ba,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

#[must_use = "FIDL methods require a response to be sent"]
#[derive(Debug)]
pub struct CalculatorPowResponder {
    control_handle: std::mem::ManuallyDrop<CalculatorControlHandle>,
    tx_id: u32,
}

/// Set the the channel to be shutdown (see [`CalculatorControlHandle::shutdown`])
/// if the responder is dropped without sending a response, so that the client
/// doesn't hang. To prevent this behavior, call `drop_without_shutdown`.
impl std::ops::Drop for CalculatorPowResponder {
    fn drop(&mut self) {
        self.control_handle.shutdown();
        // Safety: drops once, never accessed again
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
    }
}

impl fidl::endpoints::Responder for CalculatorPowResponder {
    type ControlHandle = CalculatorControlHandle;

    fn control_handle(&self) -> &CalculatorControlHandle {
        &self.control_handle
    }

    fn drop_without_shutdown(mut self) {
        // Safety: drops once, never accessed again due to mem::forget
        unsafe { std::mem::ManuallyDrop::drop(&mut self.control_handle) };
        // Prevent Drop from running (which would shut down the channel)
        std::mem::forget(self);
    }
}

impl CalculatorPowResponder {
    /// Sends a response to the FIDL transaction.
    ///
    /// Sets the channel to shutdown if an error occurs.
    pub fn send(self, mut power: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(power);
        if _result.is_err() {
            self.control_handle.shutdown();
        }
        self.drop_without_shutdown();
        _result
    }

    /// Similar to "send" but does not shutdown the channel if an error occurs.
    pub fn send_no_shutdown_on_err(self, mut power: f64) -> Result<(), fidl::Error> {
        let _result = self.send_raw(power);
        self.drop_without_shutdown();
        _result
    }

    fn send_raw(&self, mut power: f64) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<CalculatorPowResponse>(
            (power,),
            self.tx_id,
            0x3467780dee7ba196,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;
}