tools/fidl/fidlgen_rust/goldens/union_common.rs.golden

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

// fidl_experiment = output_index_json

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

use bitflags::bitflags;
use fidl::encoding::{MessageBufFor, ProxyChannelBox, ResourceDialect};
use futures::future::{self, MaybeDone, TryFutureExt};
use zx_status;

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

impl fidl::Persistable for Empty {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct NullableUnionStruct {
    pub the_union: Option<Box<Union>>,
}

impl fidl::Persistable for NullableUnionStruct {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct Pasta {
    pub sauce: String,
}

impl fidl::Persistable for Pasta {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct Pizza {
    pub toppings: Vec<String>,
}

impl fidl::Persistable for Pizza {}

#[derive(Clone, Debug, PartialEq)]
pub struct StructWithNullableUnion {
    pub x1: Option<Box<OlderSimpleUnion>>,
}

impl fidl::Persistable for StructWithNullableUnion {}

#[derive(Clone, Debug, PartialEq)]
pub struct TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse {
    pub xu: OlderSimpleUnion,
}

impl fidl::Persistable for TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse {
    pub xu: StrictBoundedUnion,
}

impl fidl::Persistable for TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse {}

#[derive(Clone, Debug, PartialEq)]
pub struct UnionSandwich {
    pub a: u32,
    pub u: ExplicitFlexibleUnion,
    pub b: u32,
}

impl fidl::Persistable for UnionSandwich {}

#[derive(Clone, Debug)]
pub enum EmptyFlexibleUnion {
    #[doc(hidden)]
    __SourceBreaking { unknown_ordinal: u64 },
}

/// Pattern that matches an unknown `EmptyFlexibleUnion` member.
#[macro_export]
macro_rules! EmptyFlexibleUnionUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for EmptyFlexibleUnion {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            _ => false,
        }
    }
}

impl EmptyFlexibleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
        }
    }
}

impl fidl::Persistable for EmptyFlexibleUnion {}

#[derive(Clone, Debug)]
pub enum ExplicitFlexibleUnion {
    I(i64),
    F(f32),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `ExplicitFlexibleUnion` member.
#[macro_export]
macro_rules! ExplicitFlexibleUnionUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for ExplicitFlexibleUnion {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::I(x), Self::I(y)) => *x == *y,
            (Self::F(x), Self::F(y)) => *x == *y,
            _ => false,
        }
    }
}

impl ExplicitFlexibleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::F(_) => 4,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for ExplicitFlexibleUnion {}

#[derive(Clone, Debug)]
pub enum ExplicitFoo {
    I(i32),
    S(String),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `ExplicitFoo` member.
#[macro_export]
macro_rules! ExplicitFooUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for ExplicitFoo {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::I(x), Self::I(y)) => *x == *y,
            (Self::S(x), Self::S(y)) => *x == *y,
            _ => false,
        }
    }
}

impl ExplicitFoo {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::S(_) => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for ExplicitFoo {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ExplicitPizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
}

impl ExplicitPizzaOrPasta {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Pizza(_) => 1,
            Self::Pasta(_) => 4,
        }
    }
}

impl fidl::Persistable for ExplicitPizzaOrPasta {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ExplicitStrictFoo {
    I(i32),
    S(String),
}

impl ExplicitStrictFoo {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 2,
            Self::S(_) => 3,
        }
    }
}

impl fidl::Persistable for ExplicitStrictFoo {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ExplicitUnion {
    Primitive(i32),
    StringNeedsConstructor(String),
}

impl ExplicitUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 3,
        }
    }
}

impl fidl::Persistable for ExplicitUnion {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum FieldCollision {
    FieldCollisionTag(i32),
}

impl FieldCollision {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::FieldCollisionTag(_) => 1,
        }
    }
}

impl fidl::Persistable for FieldCollision {}

#[derive(Clone, Debug)]
pub enum FlexibleFoo {
    S(String),
    I(i32),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `FlexibleFoo` member.
#[macro_export]
macro_rules! FlexibleFooUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for FlexibleFoo {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::S(x), Self::S(y)) => *x == *y,
            (Self::I(x), Self::I(y)) => *x == *y,
            _ => false,
        }
    }
}

impl FlexibleFoo {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::S(_) => 1,
            Self::I(_) => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for FlexibleFoo {}

#[derive(Clone, Debug)]
pub enum FlexiblePizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `FlexiblePizzaOrPasta` member.
#[macro_export]
macro_rules! FlexiblePizzaOrPastaUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for FlexiblePizzaOrPasta {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::Pizza(x), Self::Pizza(y)) => *x == *y,
            (Self::Pasta(x), Self::Pasta(y)) => *x == *y,
            _ => false,
        }
    }
}

impl FlexiblePizzaOrPasta {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Pizza(_) => 1,
            Self::Pasta(_) => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for FlexiblePizzaOrPasta {}

#[derive(Clone, Debug)]
pub enum FlexibleUnion {
    Primitive(i32),
    StringNeedsConstructor(String),
    VectorStringAlsoNeedsConstructor(Vec<String>),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `FlexibleUnion` member.
#[macro_export]
macro_rules! FlexibleUnionUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for FlexibleUnion {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::Primitive(x), Self::Primitive(y)) => *x == *y,
            (Self::StringNeedsConstructor(x), Self::StringNeedsConstructor(y)) => *x == *y,
            (
                Self::VectorStringAlsoNeedsConstructor(x),
                Self::VectorStringAlsoNeedsConstructor(y),
            ) => *x == *y,
            _ => false,
        }
    }
}

impl FlexibleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 2,
            Self::VectorStringAlsoNeedsConstructor(_) => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for FlexibleUnion {}

#[derive(Clone, Debug)]
pub enum NewerSimpleUnion {
    I(i64),
    S(String),
    V(Vec<String>),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `NewerSimpleUnion` member.
#[macro_export]
macro_rules! NewerSimpleUnionUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for NewerSimpleUnion {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::I(x), Self::I(y)) => *x == *y,
            (Self::S(x), Self::S(y)) => *x == *y,
            (Self::V(x), Self::V(y)) => *x == *y,
            _ => false,
        }
    }
}

impl NewerSimpleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::S(_) => 2,
            Self::V(_) => 3,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for NewerSimpleUnion {}

#[derive(Clone, Debug)]
pub enum OlderSimpleUnion {
    I(i64),
    F(f32),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `OlderSimpleUnion` member.
#[macro_export]
macro_rules! OlderSimpleUnionUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for OlderSimpleUnion {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::I(x), Self::I(y)) => *x == *y,
            (Self::F(x), Self::F(y)) => *x == *y,
            _ => false,
        }
    }
}

impl OlderSimpleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::F(_) => 2,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for OlderSimpleUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum PizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
}

impl PizzaOrPasta {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Pizza(_) => 1,
            Self::Pasta(_) => 2,
        }
    }
}

impl fidl::Persistable for PizzaOrPasta {}

#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum ReverseOrdinalUnion {
    First(u32),
    Second(u32),
}

impl ReverseOrdinalUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::First(_) => 1,
            Self::Second(_) => 2,
        }
    }
}

impl fidl::Persistable for ReverseOrdinalUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictBoundedUnion {
    V(Vec<u8>),
}

impl StrictBoundedUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::V(_) => 1,
        }
    }
}

impl fidl::Persistable for StrictBoundedUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictFoo {
    S(String),
    I(i32),
}

impl StrictFoo {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::S(_) => 1,
            Self::I(_) => 2,
        }
    }
}

impl fidl::Persistable for StrictFoo {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictPizzaOrPasta {
    Pizza(Pizza),
    Pasta(Pasta),
}

impl StrictPizzaOrPasta {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Pizza(_) => 1,
            Self::Pasta(_) => 2,
        }
    }
}

impl fidl::Persistable for StrictPizzaOrPasta {}

#[derive(Clone, Debug, PartialEq, PartialOrd)]
pub enum StrictSimpleUnion {
    I(i32),
    F(f32),
    S(String),
}

impl StrictSimpleUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::I(_) => 1,
            Self::F(_) => 2,
            Self::S(_) => 3,
        }
    }
}

impl fidl::Persistable for StrictSimpleUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum StrictUnion {
    Primitive(i32),
    StringNeedsConstructor(String),
    VectorStringAlsoNeedsConstructor(Vec<String>),
}

impl StrictUnion {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 2,
            Self::VectorStringAlsoNeedsConstructor(_) => 3,
        }
    }
}

impl fidl::Persistable for StrictUnion {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub enum Union {
    Primitive(i32),
    StringNeedsConstructor(String),
    VectorStringAlsoNeedsConstructor(Vec<String>),
}

impl Union {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Primitive(_) => 1,
            Self::StringNeedsConstructor(_) => 2,
            Self::VectorStringAlsoNeedsConstructor(_) => 3,
        }
    }
}

impl fidl::Persistable for Union {}

#[derive(Clone, Debug)]
pub enum UnionContainingEmptyStruct {
    Empty(Empty),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `UnionContainingEmptyStruct` member.
#[macro_export]
macro_rules! UnionContainingEmptyStructUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for UnionContainingEmptyStruct {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::Empty(x), Self::Empty(y)) => *x == *y,
            _ => false,
        }
    }
}

impl UnionContainingEmptyStruct {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::Empty(_) => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for UnionContainingEmptyStruct {}

#[derive(Clone, Debug)]
pub enum UnionWithAttributes {
    X(i64),
    #[doc(hidden)]
    __SourceBreaking {
        unknown_ordinal: u64,
    },
}

/// Pattern that matches an unknown `UnionWithAttributes` member.
#[macro_export]
macro_rules! UnionWithAttributesUnknown {
    () => {
        _
    };
}

// Custom PartialEq so that unknown variants are not equal to themselves.
impl PartialEq for UnionWithAttributes {
    fn eq(&self, other: &Self) -> bool {
        match (self, other) {
            (Self::X(x), Self::X(y)) => *x == *y,
            _ => false,
        }
    }
}

impl UnionWithAttributes {
    #[inline]
    pub fn ordinal(&self) -> u64 {
        match *self {
            Self::X(_) => 1,
            Self::__SourceBreaking { unknown_ordinal } => unknown_ordinal,
        }
    }

    #[inline]
    pub fn unknown_variant_for_testing() -> Self {
        Self::__SourceBreaking { unknown_ordinal: 0 }
    }

    #[inline]
    pub fn is_unknown(&self) -> bool {
        match self {
            Self::__SourceBreaking { .. } => true,
            _ => false,
        }
    }
}

impl fidl::Persistable for UnionWithAttributes {}

pub mod test_protocol_ordinals {
    pub const STRICT_UNION_HENCE_RESPONSE_MAY_BE_STACK_ALLOCATED: u64 = 0x5bfca9479251b9c3;
    pub const FLEXIBLE_UNION_HENCE_RESPONSE_MUST_BE_HEAP_ALLOCATED: u64 = 0x694fede3b8829ce2;
}

mod internal {
    use super::*;

    impl fidl::encoding::ValueTypeMarker for Empty {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Empty {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            1
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            1
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Empty, D> for &Empty {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Empty>(offset);
            encoder.write_num(0u8, offset);
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Empty {
        #[inline(always)]
        fn new_empty() -> Self {
            Self
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            match decoder.read_num::<u8>(offset) {
                0 => Ok(()),
                _ => Err(fidl::Error::Invalid),
            }
        }
    }

    impl fidl::encoding::ValueTypeMarker for NullableUnionStruct {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for NullableUnionStruct {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<NullableUnionStruct, D>
        for &NullableUnionStruct
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<NullableUnionStruct>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<NullableUnionStruct, D>::encode(
                (
                    <fidl::encoding::OptionalUnion<Union> as fidl::encoding::ValueTypeMarker>::borrow(&self.the_union),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::OptionalUnion<Union>, D>,
    > fidl::encoding::Encode<NullableUnionStruct, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<NullableUnionStruct>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for NullableUnionStruct {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { the_union: fidl::new_empty!(fidl::encoding::OptionalUnion<Union>, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                fidl::encoding::OptionalUnion<Union>,
                D,
                &mut self.the_union,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for Pasta {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Pasta {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Pasta, D> for &Pasta {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pasta>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Pasta, D>::encode(
                (<fidl::encoding::BoundedString<16> as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.sauce,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::BoundedString<16>, D>,
    > fidl::encoding::Encode<Pasta, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pasta>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Pasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { sauce: fidl::new_empty!(fidl::encoding::BoundedString<16>, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                fidl::encoding::BoundedString<16>,
                D,
                &mut self.sauce,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for Pizza {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Pizza {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Pizza, D> for &Pizza {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pizza>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Pizza, D>::encode(
                (
                    <fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>> as fidl::encoding::ValueTypeMarker>::borrow(&self.toppings),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<
                fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>>,
                D,
            >,
    > fidl::encoding::Encode<Pizza, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Pizza>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Pizza {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                toppings: fidl::new_empty!(
                    fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>>,
                    D
                ),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                fidl::encoding::UnboundedVector<fidl::encoding::BoundedString<16>>,
                D,
                &mut self.toppings,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for StructWithNullableUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StructWithNullableUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<StructWithNullableUnion, D> for &StructWithNullableUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StructWithNullableUnion>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<StructWithNullableUnion, D>::encode(
                (
                    <fidl::encoding::OptionalUnion<OlderSimpleUnion> as fidl::encoding::ValueTypeMarker>::borrow(&self.x1),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<fidl::encoding::OptionalUnion<OlderSimpleUnion>, D>,
    > fidl::encoding::Encode<StructWithNullableUnion, D> for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StructWithNullableUnion>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for StructWithNullableUnion
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { x1: fidl::new_empty!(fidl::encoding::OptionalUnion<OlderSimpleUnion>, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                fidl::encoding::OptionalUnion<OlderSimpleUnion>,
                D,
                &mut self.x1,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker
        for TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse
    {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker
        for TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse
    {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse, D>
        for &TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse,
                D,
            >::encode(
                (<OlderSimpleUnion as fidl::encoding::ValueTypeMarker>::borrow(&self.xu),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<OlderSimpleUnion, D>>
        fidl::encoding::Encode<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse, D>
        for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for TestProtocolFlexibleUnionHenceResponseMustBeHeapAllocatedResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { xu: fidl::new_empty!(OlderSimpleUnion, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(OlderSimpleUnion, D, &mut self.xu, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker
        for TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse
    {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker
        for TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse
    {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse, D>
        for &TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse,
                D,
            >::encode(
                (<StrictBoundedUnion as fidl::encoding::ValueTypeMarker>::borrow(&self.xu),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<StrictBoundedUnion, D>,
    > fidl::encoding::Encode<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse, D>
        for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for TestProtocolStrictUnionHenceResponseMayBeStackAllocatedResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { xu: fidl::new_empty!(StrictBoundedUnion, D) }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(StrictBoundedUnion, D, &mut self.xu, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for UnionSandwich {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for UnionSandwich {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            32
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<UnionSandwich, D>
        for &UnionSandwich
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionSandwich>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<UnionSandwich, D>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.a),
                    <ExplicitFlexibleUnion as fidl::encoding::ValueTypeMarker>::borrow(&self.u),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.b),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
        D: fidl::encoding::ResourceDialect,
        T0: fidl::encoding::Encode<u32, D>,
        T1: fidl::encoding::Encode<ExplicitFlexibleUnion, D>,
        T2: fidl::encoding::Encode<u32, D>,
    > fidl::encoding::Encode<UnionSandwich, D> for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionSandwich>(offset);
            // Zero out padding regions. There's no need to apply masks
            // because the unmasked parts will be overwritten by fields.
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(0);
                (ptr as *mut u64).write_unaligned(0);
            }
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(24);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 8, depth)?;
            self.2.encode(encoder, offset + 24, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for UnionSandwich {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                a: fidl::new_empty!(u32, D),
                u: fidl::new_empty!(ExplicitFlexibleUnion, D),
                b: fidl::new_empty!(u32, D),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(0) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 0 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(24) };
            let padval = unsafe { (ptr as *const u64).read_unaligned() };
            let mask = 0xffffffff00000000u64;
            let maskedval = padval & mask;
            if maskedval != 0 {
                return Err(fidl::Error::NonZeroPadding {
                    padding_start: offset + 24 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(u32, D, &mut self.a, decoder, offset + 0, _depth)?;
            fidl::decode!(ExplicitFlexibleUnion, D, &mut self.u, decoder, offset + 8, _depth)?;
            fidl::decode!(u32, D, &mut self.b, decoder, offset + 24, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for EmptyFlexibleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for EmptyFlexibleUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<EmptyFlexibleUnion, D>
        for &EmptyFlexibleUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<EmptyFlexibleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                EmptyFlexibleUnion::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for EmptyFlexibleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = EmptyFlexibleUnion::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for ExplicitFlexibleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ExplicitFlexibleUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ExplicitFlexibleUnion, D>
        for &ExplicitFlexibleUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitFlexibleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitFlexibleUnion::I(ref val) => fidl::encoding::encode_in_envelope::<i64, D>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitFlexibleUnion::F(ref val) => fidl::encoding::encode_in_envelope::<f32, D>(
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitFlexibleUnion::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ExplicitFlexibleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                4 => <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFlexibleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitFlexibleUnion::I(fidl::new_empty!(i64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFlexibleUnion::I(ref mut val) = self {
                        fidl::decode!(i64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                4 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFlexibleUnion::F(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitFlexibleUnion::F(fidl::new_empty!(f32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFlexibleUnion::F(ref mut val) = self {
                        fidl::decode!(f32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = ExplicitFlexibleUnion::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for ExplicitFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ExplicitFoo {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ExplicitFoo, D>
        for &ExplicitFoo
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                    D,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitFoo::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ExplicitFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitFoo::I(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFoo::I(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self =
                            ExplicitFoo::S(fidl::new_empty!(fidl::encoding::UnboundedString, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = ExplicitFoo::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for ExplicitPizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ExplicitPizzaOrPasta {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ExplicitPizzaOrPasta, D>
        for &ExplicitPizzaOrPasta
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitPizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitPizzaOrPasta::Pizza(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pizza, D>(
                        <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                ExplicitPizzaOrPasta::Pasta(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pasta, D>(
                        <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ExplicitPizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Pizza(fidl::new_empty!(Pizza, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                4 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitPizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitPizzaOrPasta::Pizza(fidl::new_empty!(Pizza, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitPizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                4 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitPizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitPizzaOrPasta::Pasta(fidl::new_empty!(Pasta, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitPizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for ExplicitStrictFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ExplicitStrictFoo {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ExplicitStrictFoo, D>
        for &ExplicitStrictFoo
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitStrictFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ExplicitStrictFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                ExplicitStrictFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                    D,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ExplicitStrictFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::I(fidl::new_empty!(i32, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                2 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitStrictFoo::I(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::I(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitStrictFoo::S(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitStrictFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for ExplicitUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ExplicitUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ExplicitUnion, D>
        for &ExplicitUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ExplicitUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            ExplicitUnion::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            ExplicitUnion::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString, D>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
        }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ExplicitUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Primitive(fidl::new_empty!(i32, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitUnion::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitUnion::Primitive(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitUnion::Primitive(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitUnion::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ExplicitUnion::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ExplicitUnion::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for FieldCollision {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FieldCollision {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<FieldCollision, D>
        for &FieldCollision
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FieldCollision>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                FieldCollision::FieldCollisionTag(ref val) => {
                    fidl::encoding::encode_in_envelope::<i32, D>(
                        <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for FieldCollision {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::FieldCollisionTag(fidl::new_empty!(i32, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FieldCollision::FieldCollisionTag(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FieldCollision::FieldCollisionTag(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FieldCollision::FieldCollisionTag(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for FlexibleFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlexibleFoo {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<FlexibleFoo, D>
        for &FlexibleFoo
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlexibleFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                FlexibleFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                    D,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                FlexibleFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                FlexibleFoo::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for FlexibleFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                2 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self =
                            FlexibleFoo::S(fidl::new_empty!(fidl::encoding::UnboundedString, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleFoo::I(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleFoo::I(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = FlexibleFoo::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for FlexiblePizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlexiblePizzaOrPasta {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<FlexiblePizzaOrPasta, D>
        for &FlexiblePizzaOrPasta
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlexiblePizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                FlexiblePizzaOrPasta::Pizza(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pizza, D>(
                        <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                FlexiblePizzaOrPasta::Pasta(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pasta, D>(
                        <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                FlexiblePizzaOrPasta::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for FlexiblePizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexiblePizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexiblePizzaOrPasta::Pizza(fidl::new_empty!(Pizza, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexiblePizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexiblePizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexiblePizzaOrPasta::Pasta(fidl::new_empty!(Pasta, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexiblePizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = FlexiblePizzaOrPasta::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for FlexibleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for FlexibleUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<FlexibleUnion, D>
        for &FlexibleUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FlexibleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            FlexibleUnion::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            FlexibleUnion::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString, D>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            FlexibleUnion::VectorStringAlsoNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>, D>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            FlexibleUnion::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
        }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for FlexibleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
            1 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            0 => return Err(fidl::Error::UnknownUnionTag),
            _ => num_bytes as usize,
        };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleUnion::Primitive(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::Primitive(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleUnion::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::VectorStringAlsoNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = FlexibleUnion::VectorStringAlsoNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let FlexibleUnion::VectorStringAlsoNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = FlexibleUnion::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for NewerSimpleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for NewerSimpleUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<NewerSimpleUnion, D>
        for &NewerSimpleUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<NewerSimpleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            NewerSimpleUnion::I(ref val) => {
                fidl::encoding::encode_in_envelope::<i64, D>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            NewerSimpleUnion::S(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString, D>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            NewerSimpleUnion::V(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>, D>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            NewerSimpleUnion::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
        }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for NewerSimpleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
            1 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            0 => return Err(fidl::Error::UnknownUnionTag),
            _ => num_bytes as usize,
        };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = NewerSimpleUnion::I(fidl::new_empty!(i64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::I(ref mut val) = self {
                        fidl::decode!(i64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = NewerSimpleUnion::S(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::V(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = NewerSimpleUnion::V(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let NewerSimpleUnion::V(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = NewerSimpleUnion::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for OlderSimpleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for OlderSimpleUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<OlderSimpleUnion, D>
        for &OlderSimpleUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<OlderSimpleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                OlderSimpleUnion::I(ref val) => fidl::encoding::encode_in_envelope::<i64, D>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                OlderSimpleUnion::F(ref val) => fidl::encoding::encode_in_envelope::<f32, D>(
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                OlderSimpleUnion::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for OlderSimpleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let OlderSimpleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = OlderSimpleUnion::I(fidl::new_empty!(i64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let OlderSimpleUnion::I(ref mut val) = self {
                        fidl::decode!(i64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let OlderSimpleUnion::F(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = OlderSimpleUnion::F(fidl::new_empty!(f32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let OlderSimpleUnion::F(ref mut val) = self {
                        fidl::decode!(f32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = OlderSimpleUnion::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for PizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for PizzaOrPasta {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<PizzaOrPasta, D>
        for &PizzaOrPasta
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<PizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                PizzaOrPasta::Pizza(ref val) => fidl::encoding::encode_in_envelope::<Pizza, D>(
                    <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                PizzaOrPasta::Pasta(ref val) => fidl::encoding::encode_in_envelope::<Pasta, D>(
                    <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for PizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Pizza(fidl::new_empty!(Pizza, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let PizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = PizzaOrPasta::Pizza(fidl::new_empty!(Pizza, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let PizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let PizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = PizzaOrPasta::Pasta(fidl::new_empty!(Pasta, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let PizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for ReverseOrdinalUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ReverseOrdinalUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<ReverseOrdinalUnion, D>
        for &ReverseOrdinalUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ReverseOrdinalUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                ReverseOrdinalUnion::First(ref val) => {
                    fidl::encoding::encode_in_envelope::<u32, D>(
                        <u32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                ReverseOrdinalUnion::Second(ref val) => {
                    fidl::encoding::encode_in_envelope::<u32, D>(
                        <u32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for ReverseOrdinalUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::First(fidl::new_empty!(u32, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ReverseOrdinalUnion::First(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ReverseOrdinalUnion::First(fidl::new_empty!(u32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ReverseOrdinalUnion::First(ref mut val) = self {
                        fidl::decode!(u32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let ReverseOrdinalUnion::Second(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = ReverseOrdinalUnion::Second(fidl::new_empty!(u32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let ReverseOrdinalUnion::Second(ref mut val) = self {
                        fidl::decode!(u32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for StrictBoundedUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StrictBoundedUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<StrictBoundedUnion, D>
        for &StrictBoundedUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictBoundedUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictBoundedUnion::V(ref val) => {
                    fidl::encoding::encode_in_envelope::<fidl::encoding::Vector<u8, 10>, D>(
                        <fidl::encoding::Vector<u8, 10> as fidl::encoding::ValueTypeMarker>::borrow(
                            val,
                        ),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for StrictBoundedUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::V(fidl::new_empty!(fidl::encoding::Vector<u8, 10>, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <fidl::encoding::Vector<u8, 10> as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictBoundedUnion::V(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictBoundedUnion::V(
                            fidl::new_empty!(fidl::encoding::Vector<u8, 10>, D),
                        );
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictBoundedUnion::V(ref mut val) = self {
                        fidl::decode!(fidl::encoding::Vector<u8, 10>, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for StrictFoo {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StrictFoo {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<StrictFoo, D>
        for &StrictFoo
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictFoo>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictFoo::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                    D,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                StrictFoo::I(ref val) => fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for StrictFoo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::S(fidl::new_empty!(fidl::encoding::UnboundedString, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                2 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictFoo::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictFoo::S(fidl::new_empty!(fidl::encoding::UnboundedString, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictFoo::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictFoo::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictFoo::I(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictFoo::I(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for StrictPizzaOrPasta {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StrictPizzaOrPasta {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<StrictPizzaOrPasta, D>
        for &StrictPizzaOrPasta
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictPizzaOrPasta>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictPizzaOrPasta::Pizza(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pizza, D>(
                        <Pizza as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                StrictPizzaOrPasta::Pasta(ref val) => {
                    fidl::encoding::encode_in_envelope::<Pasta, D>(
                        <Pasta as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for StrictPizzaOrPasta {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Pizza(fidl::new_empty!(Pizza, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <Pizza as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <Pasta as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictPizzaOrPasta::Pizza(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictPizzaOrPasta::Pizza(fidl::new_empty!(Pizza, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictPizzaOrPasta::Pizza(ref mut val) = self {
                        fidl::decode!(Pizza, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictPizzaOrPasta::Pasta(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictPizzaOrPasta::Pasta(fidl::new_empty!(Pasta, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictPizzaOrPasta::Pasta(ref mut val) = self {
                        fidl::decode!(Pasta, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for StrictSimpleUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StrictSimpleUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<StrictSimpleUnion, D>
        for &StrictSimpleUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictSimpleUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                StrictSimpleUnion::I(ref val) => fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                StrictSimpleUnion::F(ref val) => fidl::encoding::encode_in_envelope::<f32, D>(
                    <f32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                StrictSimpleUnion::S(ref val) => fidl::encoding::encode_in_envelope::<
                    fidl::encoding::UnboundedString,
                    D,
                >(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(
                        val,
                    ),
                    encoder,
                    offset + 8,
                    _depth,
                ),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for StrictSimpleUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::I(fidl::new_empty!(i32, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                2 => <f32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                3 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(
                    decoder.context,
                ),
                _ => return Err(fidl::Error::UnknownUnionTag),
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::I(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictSimpleUnion::I(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::I(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::F(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictSimpleUnion::F(fidl::new_empty!(f32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::F(ref mut val) = self {
                        fidl::decode!(f32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::S(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictSimpleUnion::S(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictSimpleUnion::S(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for StrictUnion {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for StrictUnion {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<StrictUnion, D>
        for &StrictUnion
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<StrictUnion>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            StrictUnion::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            StrictUnion::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString, D>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            StrictUnion::VectorStringAlsoNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>, D>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
        }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for StrictUnion {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Primitive(fidl::new_empty!(i32, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
            1 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            _ => return Err(fidl::Error::UnknownUnionTag),
        };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictUnion::Primitive(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::Primitive(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictUnion::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::VectorStringAlsoNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = StrictUnion::VectorStringAlsoNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let StrictUnion::VectorStringAlsoNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for Union {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Union {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Union, D> for &Union {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Union>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
            Union::Primitive(ref val) => {
                fidl::encoding::encode_in_envelope::<i32, D>(
                    <i32 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            Union::StringNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedString, D>(
                    <fidl::encoding::UnboundedString as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
            Union::VectorStringAlsoNeedsConstructor(ref val) => {
                fidl::encoding::encode_in_envelope::<fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>, D>(
                    <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder, offset + 8, _depth
                )
            }
        }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Union {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::Primitive(fidl::new_empty!(i32, D))
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
            1 => <i32 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            2 => <fidl::encoding::UnboundedString as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            3 => <fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString> as fidl::encoding::TypeMarker>::inline_size(decoder.context),
            _ => return Err(fidl::Error::UnknownUnionTag),
        };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Union::Primitive(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Union::Primitive(fidl::new_empty!(i32, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Union::Primitive(ref mut val) = self {
                        fidl::decode!(i32, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                2 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Union::StringNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Union::StringNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedString,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Union::StringNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedString,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                3 => {
                    #[allow(irrefutable_let_patterns)]
                    if let Union::VectorStringAlsoNeedsConstructor(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = Union::VectorStringAlsoNeedsConstructor(fidl::new_empty!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D
                        ));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let Union::VectorStringAlsoNeedsConstructor(ref mut val) = self {
                        fidl::decode!(
                            fidl::encoding::UnboundedVector<fidl::encoding::UnboundedString>,
                            D,
                            val,
                            decoder,
                            _inner_offset,
                            depth
                        )?;
                    } else {
                        unreachable!()
                    }
                }
                ordinal => panic!("unexpected ordinal {:?}", ordinal),
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for UnionContainingEmptyStruct {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for UnionContainingEmptyStruct {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<UnionContainingEmptyStruct, D> for &UnionContainingEmptyStruct
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionContainingEmptyStruct>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                UnionContainingEmptyStruct::Empty(ref val) => {
                    fidl::encoding::encode_in_envelope::<Empty, D>(
                        <Empty as fidl::encoding::ValueTypeMarker>::borrow(val),
                        encoder,
                        offset + 8,
                        _depth,
                    )
                }
                UnionContainingEmptyStruct::__SourceBreaking { .. } => {
                    Err(fidl::Error::UnknownUnionTag)
                }
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D>
        for UnionContainingEmptyStruct
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <Empty as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let UnionContainingEmptyStruct::Empty(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = UnionContainingEmptyStruct::Empty(fidl::new_empty!(Empty, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let UnionContainingEmptyStruct::Empty(ref mut val) = self {
                        fidl::decode!(Empty, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self =
                        UnionContainingEmptyStruct::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }

    impl fidl::encoding::ValueTypeMarker for UnionWithAttributes {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for UnionWithAttributes {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            8
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            16
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<UnionWithAttributes, D>
        for &UnionWithAttributes
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<UnionWithAttributes>(offset);
            encoder.write_num::<u64>(self.ordinal(), offset);
            match self {
                UnionWithAttributes::X(ref val) => fidl::encoding::encode_in_envelope::<i64, D>(
                    <i64 as fidl::encoding::ValueTypeMarker>::borrow(val),
                    encoder,
                    offset + 8,
                    _depth,
                ),
                UnionWithAttributes::__SourceBreaking { .. } => Err(fidl::Error::UnknownUnionTag),
            }
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for UnionWithAttributes {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::__SourceBreaking { unknown_ordinal: 0 }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            #[allow(unused_variables)]
            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            let (ordinal, inlined, num_bytes, num_handles) =
                fidl::encoding::decode_union_inline_portion(decoder, offset)?;

            let member_inline_size = match ordinal {
                1 => <i64 as fidl::encoding::TypeMarker>::inline_size(decoder.context),
                0 => return Err(fidl::Error::UnknownUnionTag),
                _ => num_bytes as usize,
            };

            if inlined != (member_inline_size <= 4) {
                return Err(fidl::Error::InvalidInlineBitInEnvelope);
            }
            let _inner_offset;
            if inlined {
                decoder.check_inline_envelope_padding(offset + 8, member_inline_size)?;
                _inner_offset = offset + 8;
            } else {
                depth.increment()?;
                _inner_offset = decoder.out_of_line_offset(member_inline_size)?;
            }
            match ordinal {
                1 => {
                    #[allow(irrefutable_let_patterns)]
                    if let UnionWithAttributes::X(_) = self {
                        // Do nothing, read the value into the object
                    } else {
                        // Initialize `self` to the right variant
                        *self = UnionWithAttributes::X(fidl::new_empty!(i64, D));
                    }
                    #[allow(irrefutable_let_patterns)]
                    if let UnionWithAttributes::X(ref mut val) = self {
                        fidl::decode!(i64, D, val, decoder, _inner_offset, depth)?;
                    } else {
                        unreachable!()
                    }
                }
                #[allow(deprecated)]
                ordinal => {
                    for _ in 0..num_handles {
                        decoder.drop_next_handle()?;
                    }
                    *self = UnionWithAttributes::__SourceBreaking { unknown_ordinal: ordinal };
                }
            }
            if !inlined && decoder.next_out_of_line() != next_out_of_line + (num_bytes as usize) {
                return Err(fidl::Error::InvalidNumBytesInEnvelope);
            }
            if handles_before != decoder.remaining_handles() + (num_handles as usize) {
                return Err(fidl::Error::InvalidNumHandlesInEnvelope);
            }
            Ok(())
        }
    }
}