fidl_fuchsia_fonts/

fidl_fuchsia_fonts.rs

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

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

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

pub type Weight = u16;

/// Default slant of a typeface when none is specified.
pub const DEFAULT_SLANT: Slant = Slant::Upright;

/// Default weight of a typeface when none is specified.
pub const DEFAULT_WEIGHT: u16 = WEIGHT_NORMAL as u16;

/// Default width of a typeface when none is specified.
pub const DEFAULT_WIDTH: Width = Width::Normal;

/// The maximum number of code points allowed in a typeface query.
pub const MAX_FACE_QUERY_CODE_POINTS: u32 = 128;

/// The maximum number of preferred languages allowed in a typeface query.
pub const MAX_FACE_QUERY_LANGUAGES: u32 = 8;

/// The maximum length of a font family name.
pub const MAX_FAMILY_NAME_LENGTH: u32 = 128;

/// The maximum number of styles that will be returned for a font family.
pub const MAX_FAMILY_STYLES: u32 = 300;

/// The maximum length of a typeface's Postscript name. The limit comes from the OpenType `name`
/// table specification.
pub const MAX_POSTSCRIPT_TYPEFACE_NAME_LENGTH: u32 = 63;

/// The maximum length of a typeface's full name.
pub const MAX_TYPEFACE_NAME_LENGTH: u32 = 128;

/// Deprecated. See `FaceRequestFlags`.
/// Disables approximate style matching. The service will only return font that
/// matches the requested style exactly.
pub const REQUEST_FLAG_EXACT_MATCH: u32 = 2;

/// Deprecated. See `FaceRequestFlags`.
/// Disables font fallback. The service won't try to search fallback font set if
/// there is no requested font family or if it doesn't contain requested
/// character.
pub const REQUEST_FLAG_NO_FALLBACK: u32 = 1;

pub const WEIGHT_BLACK: u16 = 900;

pub const WEIGHT_BOLD: u16 = 700;

pub const WEIGHT_EXTRA_BOLD: u16 = 800;

pub const WEIGHT_EXTRA_LIGHT: u16 = 200;

pub const WEIGHT_LIGHT: u16 = 300;

pub const WEIGHT_MEDIUM: u16 = 500;

pub const WEIGHT_NORMAL: u16 = 400;

pub const WEIGHT_SEMI_BOLD: u16 = 600;

pub const WEIGHT_THIN: u16 = 100;

bitflags! {
    /// Boolean flags for `TypefaceRequest`.
    #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
    pub struct TypefaceRequestFlags: u32 {
        /// Disables font family fallback. The service won't try to search the fallback font set if the
        /// requested font family doesn't exist or if it doesn't contain the requested code point.
        const EXACT_FAMILY = 1;
        /// Disables approximate style matching. The service will only return a face that matches the
        /// requested style exactly. For example, there will be no substitutions of "medium" for a
        /// requested "semi-bold" weight, or "oblique" for a requested "italic" slant.
        const EXACT_STYLE = 2;
    }
}

impl TypefaceRequestFlags {
    #[deprecated = "Strict bits should not use `has_unknown_bits`"]
    #[inline(always)]
    pub fn has_unknown_bits(&self) -> bool {
        false
    }

    #[deprecated = "Strict bits should not use `get_unknown_bits`"]
    #[inline(always)]
    pub fn get_unknown_bits(&self) -> u32 {
        0
    }
}

/// Options for what the font server should do if the client requests a typeface that is not yet
/// cached.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum CacheMissPolicy {
    /// The server will attempt to load the uncached typeface before providing a response. This is
    /// the *default* behavior.
    ///
    /// This option is not recommended for synchronous clients that block rendering while waiting
    /// for a font.
    BlockUntilDownloaded = 1,
    /// The server will tell the client that the uncached typeface is unavailable, by returning an
    /// empty [`fuchsia.fonts/TypefaceResponse`]. The uncached typeface may be downloaded
    /// asynchronously to be available for future requests.
    ///
    /// This is similar to `font-display: block` in CSS.
    ReturnEmptyResponse = 2,
    /// The server will attempt to provide a cached fallback typeface (if allowed by the fallback
    /// restrictions in [`fuchsia.fonts/TypefaceRequestFlags`]). The uncached typeface may be
    /// downloaded asynchronously to be available for future requests.
    ///
    /// This is similar to `font-display: swap` in CSS.
    ReturnFallback = 3,
}

impl CacheMissPolicy {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::BlockUntilDownloaded),
            2 => Some(Self::ReturnEmptyResponse),
            3 => Some(Self::ReturnFallback),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        self as u32
    }

    #[deprecated = "Strict enums should not use `is_unknown`"]
    #[inline]
    pub fn is_unknown(&self) -> bool {
        false
    }
}

/// Deprecated. See `GenericFontFamily`.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum FallbackGroup {
    None = 0,
    Serif = 1,
    SansSerif = 2,
    Monospace = 3,
    Cursive = 4,
    Fantasy = 5,
}

impl FallbackGroup {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            0 => Some(Self::None),
            1 => Some(Self::Serif),
            2 => Some(Self::SansSerif),
            3 => Some(Self::Monospace),
            4 => Some(Self::Cursive),
            5 => Some(Self::Fantasy),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        self as u32
    }

    #[deprecated = "Strict enums should not use `is_unknown`"]
    #[inline]
    pub fn is_unknown(&self) -> bool {
        false
    }
}

/// Generic groups of font families that can serve as fallbacks for a specific family.
///
/// Every font family belongs to some _generic_ font family (see examples below).
///
/// If an exact requested family is unavailable but a fallback group is specified in the request,
/// the provider may return some other family that belongs to the fallback group. For example, if
/// the client requests the "Arial" family with a `SANS_SERIF` fallback, and "Arial" is unavailable,
/// the provider may return another available sans serif family, such as "Roboto Regular", instead.
///
/// See also:
/// https://www.w3.org/TR/css-fonts-4/#generic-font-families
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum GenericFontFamily {
    /// Glyphs have little "serifs", hooks, or notches at the ends of most strokes.
    /// Examples: Georgia, Noto Serif, Times New Roman.
    Serif = 1,
    /// Glyphs that have no serifs at the ends of most strokes.
    /// Examples: Arial, Noto Sans, Roboto, Tahoma.
    SansSerif = 2,
    /// Fixed-width fonts.
    /// Examples: Consolas, Courier New, Inconsolata.
    Monospace = 3,
    /// Handwritten or cursive fonts.
    /// Examples: Brush Script, Comic Sans, Lucida Calligraphy.
    Cursive = 4,
    /// Decorative fonts.
    /// Examples: Impact, Papyrus.
    Fantasy = 5,
    /// The default user interface font on the target platform.
    /// This is included for completeness with the CSS specification; font manifests should not
    /// declare that a font belongs to the `SYSTEM_UI` generic family, but instead should declare a
    /// more specific option (e.g. `SERIF` for Roboto).
    ///
    /// Not commonly used.
    SystemUi = 6,
    /// Fonts that are used specifically for rendering emoji code points.
    /// Examples: Noto Color Emoji.
    Emoji = 7,
    /// Fonts that are used primarily for rendering mathematical expressions.
    ///
    /// Not commonly used.
    Math = 8,
    /// A group of Chinese fonts between serif and cursive, often used for official Chinese
    /// Government documents.
    ///
    /// Not commonly used.
    Fangsong = 9,
}

impl GenericFontFamily {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Serif),
            2 => Some(Self::SansSerif),
            3 => Some(Self::Monospace),
            4 => Some(Self::Cursive),
            5 => Some(Self::Fantasy),
            6 => Some(Self::SystemUi),
            7 => Some(Self::Emoji),
            8 => Some(Self::Math),
            9 => Some(Self::Fangsong),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        self as u32
    }

    #[deprecated = "Strict enums should not use `is_unknown`"]
    #[inline]
    pub fn is_unknown(&self) -> bool {
        false
    }
}

/// The type of slant of a type face.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum Slant {
    /// The default; upright glyphs.
    Upright = 1,
    /// Specially designed, slanted and slightly calligraphic glyphs.
    Italic = 2,
    /// Skewed glyphs. Oblique usually means an geometric transformation of the upright variant,
    /// rather than a custom-designed variant.
    Oblique = 3,
}

impl Slant {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::Upright),
            2 => Some(Self::Italic),
            3 => Some(Self::Oblique),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        self as u32
    }

    #[deprecated = "Strict enums should not use `is_unknown`"]
    #[inline]
    pub fn is_unknown(&self) -> bool {
        false
    }
}

/// Horizontal width class of the glyphs.
///
/// See https://docs.microsoft.com/en-us/typography/opentype/spec/os2#uswidthclass.
#[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
#[repr(u32)]
pub enum Width {
    /// 50% of normal width
    UltraCondensed = 1,
    /// 62.5% of normal width
    ExtraCondensed = 2,
    /// 75% of normal width
    Condensed = 3,
    /// 87.5% of normal width
    SemiCondensed = 4,
    /// Normal width
    Normal = 5,
    /// 112.5% of normal width
    SemiExpanded = 6,
    /// 125% of normal width
    Expanded = 7,
    /// 150% of normal width
    ExtraExpanded = 8,
    /// 200% of normal width
    UltraExpanded = 9,
}

impl Width {
    #[inline]
    pub fn from_primitive(prim: u32) -> Option<Self> {
        match prim {
            1 => Some(Self::UltraCondensed),
            2 => Some(Self::ExtraCondensed),
            3 => Some(Self::Condensed),
            4 => Some(Self::SemiCondensed),
            5 => Some(Self::Normal),
            6 => Some(Self::SemiExpanded),
            7 => Some(Self::Expanded),
            8 => Some(Self::ExtraExpanded),
            9 => Some(Self::UltraExpanded),
            _ => None,
        }
    }

    #[inline]
    pub const fn into_primitive(self) -> u32 {
        self as u32
    }

    #[deprecated = "Strict enums should not use `is_unknown`"]
    #[inline]
    pub fn is_unknown(&self) -> bool {
        false
    }
}

/// Deprecated. See `FontFamilyInfo`.
///
/// Information about font family that can be requested using GetFamilyInfo().
#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FamilyInfo {
    /// Canonical font family name. Note that this may be different from the
    /// value passed to GetFamilyInfo() because GetFamilyInfo() also resolves
    /// font aliases and ignores case. For example GetFamilyInfo("robotoslab")
    /// will FamilyInfo.name = "Robot Slab".
    pub name: String,
    /// Unordered list of all available styles in the family.
    pub styles: Vec<Style>,
}

impl fidl::Persistable for FamilyInfo {}

/// The name of a family of fonts.
///
/// Examples: "Roboto", "Noto Serif".
#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct FamilyName {
    /// The characters that make up the name.
    pub name: String,
}

impl fidl::Persistable for FamilyName {}

#[derive(Clone, Debug, PartialEq)]
pub struct FontSetEventListenerOnFontSetUpdatedRequest {
    pub event: FontSetUpdatedEvent,
}

impl fidl::Persistable for FontSetEventListenerOnFontSetUpdatedRequest {}

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

impl fidl::Persistable for ProviderGetFamilyInfoRequest {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ProviderGetFamilyInfoResponse {
    pub family_info: Option<Box<FamilyInfo>>,
}

impl fidl::Persistable for ProviderGetFamilyInfoResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ProviderGetFontFamilyInfoRequest {
    pub family: FamilyName,
}

impl fidl::Persistable for ProviderGetFontFamilyInfoRequest {}

#[derive(Clone, Debug, PartialEq)]
pub struct ProviderGetFontFamilyInfoResponse {
    pub family_info: FontFamilyInfo,
}

impl fidl::Persistable for ProviderGetFontFamilyInfoResponse {}

#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ProviderGetFontRequest {
    pub request: Request,
}

impl fidl::Persistable for ProviderGetFontRequest {}

#[derive(Debug, PartialEq)]
pub struct ProviderGetFontResponse {
    pub response: Option<Box<Response>>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for ProviderGetFontResponse {}

#[derive(Clone, Debug, PartialEq)]
pub struct ProviderGetTypefaceRequest {
    pub request: TypefaceRequest,
}

impl fidl::Persistable for ProviderGetTypefaceRequest {}

#[derive(Debug, PartialEq)]
pub struct ProviderGetTypefaceResponse {
    pub response: TypefaceResponse,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ProviderGetTypefaceResponse
{
}

#[derive(Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct ProviderRegisterFontSetEventListenerRequest {
    pub listener: fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect>
    for ProviderRegisterFontSetEventListenerRequest
{
}

/// Deprecated. See `FaceRequest`.
#[derive(Clone, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct Request {
    /// Desired font family name, e.g. "Roboto". Font family search is
    /// case-insensitive. In case when there is no specified family or the
    /// specified family doesn't have glyph for the requested `character` then
    /// a font from another family may be returned. This behavior can be disabled
    /// using `REQUEST_FLAG_NO_FALLBACK`.
    pub family: Option<String>,
    /// For example, 400 is normal, 700 is bold.
    pub weight: u32,
    /// Numeric values matching OS/2 & Windows Metrics usWidthClass table.
    /// https://www.microsoft.com/typography/otspec/os2.htm
    /// For example, 5 is normal.
    pub width: u32,
    pub slant: Slant,
    /// BCP47 language tags in order of preference. See
    /// https://tools.ietf.org/html/bcp47 .
    pub language: Option<Vec<String>>,
    /// Codepoint for the character that must be present in the returned font or 0.
    /// Caller that specify this field are expected to extract character set from
    /// the result and cache it in order to avoid calling the API more than
    /// necessary.
    pub character: u32,
    /// Fallback group preference. Caller can leave this field set to NONE. In
    /// that case the font provider will use fallback group of the specified font
    /// family.
    pub fallback_group: FallbackGroup,
    pub flags: u32,
}

impl fidl::Persistable for Request {}

#[derive(Debug, PartialEq)]
pub struct Response {
    pub buffer: fidl_fuchsia_mem::Buffer,
    /// Buffer identifier for the buffer. Responses with the same buffer_id are
    /// guaranteed to contain the same data in the buffer. Clients may use this
    /// value to detect if they already have the font cached in parsed form.
    pub buffer_id: u32,
    /// Font index within `buffer`. Used for font formats that may contain more
    /// than one font per file, e.g. TTC (TrueType Collection).
    pub font_index: u32,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for Response {}

/// Deprecated.
/// See `Style2`.
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialEq, PartialOrd)]
pub struct Style {
    pub weight: u32,
    pub width: u32,
    pub slant: Slant,
}

impl fidl::Persistable for Style {}

/// Information about a font family that can be requested using `Provider.GetFontFamilyInfo()`.
///
/// If a matching font family is not found, the table will be empty.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct FontFamilyInfo {
    /// Canonical font family name. Note that this may be different from the value passed to
    /// `GetFontFamilyInfo()` due to the resolution of font aliases, and/or differences in
    /// whitespace and capitalization.
    pub name: Option<FamilyName>,
    /// Unordered list of all available styles in the family.
    pub styles: Option<Vec<Style2>>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for FontFamilyInfo {}

/// An event indicating that the set of fonts available in the `Provider` has changed. This is most
/// frequently caused by an ephemeral font being downloaded and cached. Clients should consider
/// re-requesting fonts and re-rendering any displayed text.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct FontSetUpdatedEvent {
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for FontSetUpdatedEvent {}

/// Style properties that can be used when requesting or describing a type face.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct Style2 {
    /// See `Slant`.
    pub slant: Option<Slant>,
    /// Weight or thickness of the glyphs. Allowed values are integers in the range [1, 1000], but
    /// most real-world font families only support some integer multiples of 100:
    /// {100, 200, ..., 900}. Normal text (`WEIGHT_NORMAL`) is 400; `WEIGHT_BOLD` is 700.
    ///
    /// See:
    /// https://developer.mozilla.org/en-US/docs/Web/CSS/font-weight#Common_weight_name_mapping
    /// https://docs.microsoft.com/en-us/typography/opentype/spec/os2#usweightclass
    pub weight: Option<u16>,
    /// See `Width`.
    pub width: Option<Width>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for Style2 {}

/// Parameters for looking up a typeface.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct TypefaceQuery {
    /// Desired font family name, e.g. "Roboto". Font family search is case-insensitive.
    ///
    /// Note: In cases where the specified family doesn't exist, or the specified family doesn't
    /// have a glyph for the requested `code_point`, a face from another family may be returned.
    /// This behavior can be disabled using `TypefaceRequestFlags.EXACT_FAMILY`.
    pub family: Option<FamilyName>,
    /// Style properties of the desired typeface.
    pub style: Option<Style2>,
    /// Language tags in order of preference. This allows disambiguating code points that map
    /// to different glyphs in different languages (e.g. CJK code points).
    ///
    /// See `fuchsia.intl.LocaleId`.
    pub languages: Option<Vec<fidl_fuchsia_intl::LocaleId>>,
    /// Optional code points for which glyphs must be present in the returned face.
    ///
    /// Callers that specify this field are expected to extract the character set from the result
    /// and cache it in order to avoid calling the API more than necessary.
    pub code_points: Option<Vec<u32>>,
    /// A generic font family to fall back to if an exact match is unavailable or does not contain
    /// the requested code point.
    ///
    /// Every font family belongs to a generic family (configured in the font manifest). If a
    /// particular font family doesn't contain a requested code point, the provider can search for
    /// the code point in other font families _in the same generic family_ as a fallback.
    ///
    /// Specifying `fallback_family` in a query allows the client to override the generic family
    /// that would be used as a fallback.
    pub fallback_family: Option<GenericFontFamily>,
    /// The exact Postscript name of the typeface to look up. This corresponds to name ID `6` in
    /// the TrueType/OpenType `name` table.
    ///
    /// All characters must be in the printable ASCII range (U+0021 to U+007E), and must not be
    /// '[', ']', '(', ')', '{', '}', '<', '>', '/', or '%'.
    ///
    /// If this field is specified, all the other query fields are ignored.
    pub postscript_name: Option<String>,
    /// The exact full name of the typeface to look up. This corresponds to name ID `4` in the
    /// TrueType/OpenType `name` table.
    ///
    /// If this field is specified, all the other query fields are ignored.
    pub full_name: Option<String>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for TypefaceQuery {}

/// Parameters for requesting a typeface.
#[derive(Clone, Debug, Default, PartialEq)]
pub struct TypefaceRequest {
    /// Parameters for looking up a typeface.
    pub query: Option<TypefaceQuery>,
    /// Flags for how to process the request, such as which kinds of substitutions are permitted.
    pub flags: Option<TypefaceRequestFlags>,
    /// Setting for what to do if the requested typeface exists but is not cached, and therefore
    /// cannot be served immediately.
    ///
    /// If this field is empty, the default policy is
    /// [`fuchsia.fonts/CacheMissPolicy.BLOCK_UNTIL_DOWNLOADED`].
    ///
    /// If the client needs an immediate response, it can choose one of the non-blocking policies.
    /// In this case, clients can also register to be notified when new fonts have been added to the
    /// cache by calling [`fuchsia.fonts/Provider.RegisterFontSetEventListener`].
    pub cache_miss_policy: Option<CacheMissPolicy>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Persistable for TypefaceRequest {}

/// Response to a TypefaceRequest. Contains the digital font file and metadata corresponding to a
/// returned typeface. Clients are expected to cache the results if they plan to reuse them.
///
/// If a matching typeface cannot be found, the table will be empty.
#[derive(Debug, Default, PartialEq)]
pub struct TypefaceResponse {
    /// A memory buffer containing the bytes of a digital font file.
    /// It is the client's responsibility to identify the type of file and to parse it (usually by
    /// delegating to FreeType or a similar library).
    pub buffer: Option<fidl_fuchsia_mem::Buffer>,
    /// Identifier for the buffer. Responses with the same `buffer_id` are guaranteed to contain the
    /// same data in the buffer. Clients may use this value to detect if they already have the font
    /// cached in parsed form.
    pub buffer_id: Option<u32>,
    /// Index of the returned typeface within `buffer`. Used for digital font formats that may
    /// contain more than one typeface per file, e.g. TTC (TrueType Collection).
    pub font_index: Option<u32>,
    #[doc(hidden)]
    pub __source_breaking: fidl::marker::SourceBreaking,
}

impl fidl::Standalone<fidl::encoding::DefaultFuchsiaResourceDialect> for TypefaceResponse {}

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

impl fidl::endpoints::ProtocolMarker for FontSetEventListenerMarker {
    type Proxy = FontSetEventListenerProxy;
    type RequestStream = FontSetEventListenerRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = FontSetEventListenerSynchronousProxy;

    const DEBUG_NAME: &'static str = "(anonymous) FontSetEventListener";
}

pub trait FontSetEventListenerProxyInterface: Send + Sync {
    type OnFontSetUpdatedResponseFut: std::future::Future<Output = Result<(), fidl::Error>> + Send;
    fn r#on_font_set_updated(
        &self,
        event: &FontSetUpdatedEvent,
    ) -> Self::OnFontSetUpdatedResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct FontSetEventListenerSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for FontSetEventListenerSynchronousProxy {
    type Proxy = FontSetEventListenerProxy;
    type Protocol = FontSetEventListenerMarker;

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

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

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

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

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

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

    /// The set of fonts available in the `Provider` has changed. See
    /// [`fuchsia.fonts/FontSetUpdatedEvent`].
    pub fn r#on_font_set_updated(
        &self,
        mut event: &FontSetUpdatedEvent,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<(), fidl::Error> {
        let _response = self.client.send_query::<
            FontSetEventListenerOnFontSetUpdatedRequest,
            fidl::encoding::EmptyPayload,
        >(
            (event,),
            0xf0cd2d121f881f9,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response)
    }
}

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

impl fidl::endpoints::Proxy for FontSetEventListenerProxy {
    type Protocol = FontSetEventListenerMarker;

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

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

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

impl FontSetEventListenerProxy {
    /// Create a new Proxy for fuchsia.fonts/FontSetEventListener.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name =
            <FontSetEventListenerMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

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

    /// The set of fonts available in the `Provider` has changed. See
    /// [`fuchsia.fonts/FontSetUpdatedEvent`].
    pub fn r#on_font_set_updated(
        &self,
        mut event: &FontSetUpdatedEvent,
    ) -> fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect> {
        FontSetEventListenerProxyInterface::r#on_font_set_updated(self, event)
    }
}

impl FontSetEventListenerProxyInterface for FontSetEventListenerProxy {
    type OnFontSetUpdatedResponseFut =
        fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#on_font_set_updated(
        &self,
        mut event: &FontSetUpdatedEvent,
    ) -> Self::OnFontSetUpdatedResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<(), fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::EmptyPayload,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0xf0cd2d121f881f9,
            >(_buf?)?;
            Ok(_response)
        }
        self.client.send_query_and_decode::<FontSetEventListenerOnFontSetUpdatedRequest, ()>(
            (event,),
            0xf0cd2d121f881f9,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

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

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

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

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

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

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

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

/// A Stream of incoming requests for fuchsia.fonts/FontSetEventListener.
pub struct FontSetEventListenerRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for FontSetEventListenerRequestStream {
    type Protocol = FontSetEventListenerMarker;
    type ControlHandle = FontSetEventListenerControlHandle;

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

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

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

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

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

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

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

                std::task::Poll::Ready(Some(match header.ordinal {
                0xf0cd2d121f881f9 => {
                    header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                    let mut req = fidl::new_empty!(FontSetEventListenerOnFontSetUpdatedRequest, fidl::encoding::DefaultFuchsiaResourceDialect);
                    fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<FontSetEventListenerOnFontSetUpdatedRequest>(&header, _body_bytes, handles, &mut req)?;
                    let control_handle = FontSetEventListenerControlHandle {
                        inner: this.inner.clone(),
                    };
                    Ok(FontSetEventListenerRequest::OnFontSetUpdated {event: req.event,

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

/// Protocol for listening to possible events that may occur in the `Provider`'s set of fonts.
///
/// Register a listener using [`fuchsia.fonts/Provider.RegisterFontSetEventListener`].
#[derive(Debug)]
pub enum FontSetEventListenerRequest {
    /// The set of fonts available in the `Provider` has changed. See
    /// [`fuchsia.fonts/FontSetUpdatedEvent`].
    OnFontSetUpdated {
        event: FontSetUpdatedEvent,
        responder: FontSetEventListenerOnFontSetUpdatedResponder,
    },
}

impl FontSetEventListenerRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_on_font_set_updated(
        self,
    ) -> Option<(FontSetUpdatedEvent, FontSetEventListenerOnFontSetUpdatedResponder)> {
        if let FontSetEventListenerRequest::OnFontSetUpdated { event, responder } = self {
            Some((event, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            FontSetEventListenerRequest::OnFontSetUpdated { .. } => "on_font_set_updated",
        }
    }
}

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

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

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

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

impl FontSetEventListenerControlHandle {}

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

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

impl fidl::endpoints::Responder for FontSetEventListenerOnFontSetUpdatedResponder {
    type ControlHandle = FontSetEventListenerControlHandle;

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

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

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

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

    fn send_raw(&self) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::EmptyPayload>(
            (),
            self.tx_id,
            0xf0cd2d121f881f9,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

impl fidl::endpoints::ProtocolMarker for ProviderMarker {
    type Proxy = ProviderProxy;
    type RequestStream = ProviderRequestStream;
    #[cfg(target_os = "fuchsia")]
    type SynchronousProxy = ProviderSynchronousProxy;

    const DEBUG_NAME: &'static str = "fuchsia.fonts.Provider";
}
impl fidl::endpoints::DiscoverableProtocolMarker for ProviderMarker {}

pub trait ProviderProxyInterface: Send + Sync {
    type GetFontResponseFut: std::future::Future<Output = Result<Option<Box<Response>>, fidl::Error>>
        + Send;
    fn r#get_font(&self, request: &Request) -> Self::GetFontResponseFut;
    type GetFamilyInfoResponseFut: std::future::Future<Output = Result<Option<Box<FamilyInfo>>, fidl::Error>>
        + Send;
    fn r#get_family_info(&self, family: &str) -> Self::GetFamilyInfoResponseFut;
    type GetTypefaceResponseFut: std::future::Future<Output = Result<TypefaceResponse, fidl::Error>>
        + Send;
    fn r#get_typeface(&self, request: &TypefaceRequest) -> Self::GetTypefaceResponseFut;
    type GetFontFamilyInfoResponseFut: std::future::Future<Output = Result<FontFamilyInfo, fidl::Error>>
        + Send;
    fn r#get_font_family_info(&self, family: &FamilyName) -> Self::GetFontFamilyInfoResponseFut;
    type RegisterFontSetEventListenerResponseFut: std::future::Future<Output = Result<(), fidl::Error>>
        + Send;
    fn r#register_font_set_event_listener(
        &self,
        listener: fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
    ) -> Self::RegisterFontSetEventListenerResponseFut;
}
#[derive(Debug)]
#[cfg(target_os = "fuchsia")]
pub struct ProviderSynchronousProxy {
    client: fidl::client::sync::Client,
}

#[cfg(target_os = "fuchsia")]
impl fidl::endpoints::SynchronousProxy for ProviderSynchronousProxy {
    type Proxy = ProviderProxy;
    type Protocol = ProviderMarker;

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

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

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

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

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

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

    /// Deprecated. See `GetTypeface`.
    ///
    /// Returns font that matches specified `request`.
    pub fn r#get_font(
        &self,
        mut request: &Request,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<Option<Box<Response>>, fidl::Error> {
        let _response = self.client.send_query::<ProviderGetFontRequest, ProviderGetFontResponse>(
            (request,),
            0x6daeaad83184076b,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response.response)
    }

    /// Deprecated. See `GetFontFamilyInfo`.
    ///
    /// Returns information for the specified font family or null if there is
    /// no family with the specified name. This function respects family name
    /// aliases and ignores case, so request for "robotoSLAB" will return
    /// FamilyInfo for "Roboto Slab".
    pub fn r#get_family_info(
        &self,
        mut family: &str,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<Option<Box<FamilyInfo>>, fidl::Error> {
        let _response =
            self.client.send_query::<ProviderGetFamilyInfoRequest, ProviderGetFamilyInfoResponse>(
                (family,),
                0x27aba13280090db3,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.family_info)
    }

    /// Returns a typeface that matches the specified `request`, or an empty table if no matching
    /// face is found. (The latter is more likely to happen if `TypefaceRequestFlags.EXACT_FAMILY`
    /// is used to disable fallbacks.)
    pub fn r#get_typeface(
        &self,
        mut request: &TypefaceRequest,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<TypefaceResponse, fidl::Error> {
        let _response =
            self.client.send_query::<ProviderGetTypefaceRequest, ProviderGetTypefaceResponse>(
                (request,),
                0x5481d24f1a4b0671,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.response)
    }

    /// Returns information for the specified font family, or an empty table if there is no family
    /// with the specified name.
    ///
    /// This function respects family name aliases and ignores case. For example, "RobotoSlab" is an
    /// alias for the canonical name "Roboto Slab". A request for "robotoSLAB" would return the
    /// `FontFamilyInfo` for "Roboto Slab" due to the case-insensitivity and alias resolution.
    pub fn r#get_font_family_info(
        &self,
        mut family: &FamilyName,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<FontFamilyInfo, fidl::Error> {
        let _response = self
            .client
            .send_query::<ProviderGetFontFamilyInfoRequest, ProviderGetFontFamilyInfoResponse>(
                (family,),
                0x7520ee83bf25c9ca,
                fidl::encoding::DynamicFlags::empty(),
                ___deadline,
            )?;
        Ok(_response.family_info)
    }

    /// Register a listener to be notified when the set of available fonts or mappings has changed.
    /// A client can register as many listeners as it wishes.
    ///
    /// To unregister, close the channel.
    pub fn r#register_font_set_event_listener(
        &self,
        mut listener: fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
        ___deadline: zx::MonotonicInstant,
    ) -> Result<(), fidl::Error> {
        let _response = self.client.send_query::<
            ProviderRegisterFontSetEventListenerRequest,
            fidl::encoding::EmptyPayload,
        >(
            (listener,),
            0x196898fd17cb694c,
            fidl::encoding::DynamicFlags::empty(),
            ___deadline,
        )?;
        Ok(_response)
    }
}

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

impl fidl::endpoints::Proxy for ProviderProxy {
    type Protocol = ProviderMarker;

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

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

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

impl ProviderProxy {
    /// Create a new Proxy for fuchsia.fonts/Provider.
    pub fn new(channel: ::fidl::AsyncChannel) -> Self {
        let protocol_name = <ProviderMarker as fidl::endpoints::ProtocolMarker>::DEBUG_NAME;
        Self { client: fidl::client::Client::new(channel, protocol_name) }
    }

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

    /// Deprecated. See `GetTypeface`.
    ///
    /// Returns font that matches specified `request`.
    pub fn r#get_font(
        &self,
        mut request: &Request,
    ) -> fidl::client::QueryResponseFut<
        Option<Box<Response>>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ProviderProxyInterface::r#get_font(self, request)
    }

    /// Deprecated. See `GetFontFamilyInfo`.
    ///
    /// Returns information for the specified font family or null if there is
    /// no family with the specified name. This function respects family name
    /// aliases and ignores case, so request for "robotoSLAB" will return
    /// FamilyInfo for "Roboto Slab".
    pub fn r#get_family_info(
        &self,
        mut family: &str,
    ) -> fidl::client::QueryResponseFut<
        Option<Box<FamilyInfo>>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ProviderProxyInterface::r#get_family_info(self, family)
    }

    /// Returns a typeface that matches the specified `request`, or an empty table if no matching
    /// face is found. (The latter is more likely to happen if `TypefaceRequestFlags.EXACT_FAMILY`
    /// is used to disable fallbacks.)
    pub fn r#get_typeface(
        &self,
        mut request: &TypefaceRequest,
    ) -> fidl::client::QueryResponseFut<
        TypefaceResponse,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    > {
        ProviderProxyInterface::r#get_typeface(self, request)
    }

    /// Returns information for the specified font family, or an empty table if there is no family
    /// with the specified name.
    ///
    /// This function respects family name aliases and ignores case. For example, "RobotoSlab" is an
    /// alias for the canonical name "Roboto Slab". A request for "robotoSLAB" would return the
    /// `FontFamilyInfo` for "Roboto Slab" due to the case-insensitivity and alias resolution.
    pub fn r#get_font_family_info(
        &self,
        mut family: &FamilyName,
    ) -> fidl::client::QueryResponseFut<FontFamilyInfo, fidl::encoding::DefaultFuchsiaResourceDialect>
    {
        ProviderProxyInterface::r#get_font_family_info(self, family)
    }

    /// Register a listener to be notified when the set of available fonts or mappings has changed.
    /// A client can register as many listeners as it wishes.
    ///
    /// To unregister, close the channel.
    pub fn r#register_font_set_event_listener(
        &self,
        mut listener: fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
    ) -> fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect> {
        ProviderProxyInterface::r#register_font_set_event_listener(self, listener)
    }
}

impl ProviderProxyInterface for ProviderProxy {
    type GetFontResponseFut = fidl::client::QueryResponseFut<
        Option<Box<Response>>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_font(&self, mut request: &Request) -> Self::GetFontResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<Option<Box<Response>>, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                ProviderGetFontResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x6daeaad83184076b,
            >(_buf?)?;
            Ok(_response.response)
        }
        self.client.send_query_and_decode::<ProviderGetFontRequest, Option<Box<Response>>>(
            (request,),
            0x6daeaad83184076b,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type GetFamilyInfoResponseFut = fidl::client::QueryResponseFut<
        Option<Box<FamilyInfo>>,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_family_info(&self, mut family: &str) -> Self::GetFamilyInfoResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<Option<Box<FamilyInfo>>, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                ProviderGetFamilyInfoResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x27aba13280090db3,
            >(_buf?)?;
            Ok(_response.family_info)
        }
        self.client.send_query_and_decode::<ProviderGetFamilyInfoRequest, Option<Box<FamilyInfo>>>(
            (family,),
            0x27aba13280090db3,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type GetTypefaceResponseFut = fidl::client::QueryResponseFut<
        TypefaceResponse,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_typeface(&self, mut request: &TypefaceRequest) -> Self::GetTypefaceResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<TypefaceResponse, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                ProviderGetTypefaceResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x5481d24f1a4b0671,
            >(_buf?)?;
            Ok(_response.response)
        }
        self.client.send_query_and_decode::<ProviderGetTypefaceRequest, TypefaceResponse>(
            (request,),
            0x5481d24f1a4b0671,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type GetFontFamilyInfoResponseFut = fidl::client::QueryResponseFut<
        FontFamilyInfo,
        fidl::encoding::DefaultFuchsiaResourceDialect,
    >;
    fn r#get_font_family_info(
        &self,
        mut family: &FamilyName,
    ) -> Self::GetFontFamilyInfoResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<FontFamilyInfo, fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                ProviderGetFontFamilyInfoResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x7520ee83bf25c9ca,
            >(_buf?)?;
            Ok(_response.family_info)
        }
        self.client.send_query_and_decode::<ProviderGetFontFamilyInfoRequest, FontFamilyInfo>(
            (family,),
            0x7520ee83bf25c9ca,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }

    type RegisterFontSetEventListenerResponseFut =
        fidl::client::QueryResponseFut<(), fidl::encoding::DefaultFuchsiaResourceDialect>;
    fn r#register_font_set_event_listener(
        &self,
        mut listener: fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
    ) -> Self::RegisterFontSetEventListenerResponseFut {
        fn _decode(
            mut _buf: Result<<fidl::encoding::DefaultFuchsiaResourceDialect as fidl::encoding::ResourceDialect>::MessageBufEtc, fidl::Error>,
        ) -> Result<(), fidl::Error> {
            let _response = fidl::client::decode_transaction_body::<
                fidl::encoding::EmptyPayload,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                0x196898fd17cb694c,
            >(_buf?)?;
            Ok(_response)
        }
        self.client.send_query_and_decode::<ProviderRegisterFontSetEventListenerRequest, ()>(
            (listener,),
            0x196898fd17cb694c,
            fidl::encoding::DynamicFlags::empty(),
            _decode,
        )
    }
}

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

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

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

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

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

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

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

/// A Stream of incoming requests for fuchsia.fonts/Provider.
pub struct ProviderRequestStream {
    inner: std::sync::Arc<fidl::ServeInner<fidl::encoding::DefaultFuchsiaResourceDialect>>,
    is_terminated: bool,
}

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

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

impl fidl::endpoints::RequestStream for ProviderRequestStream {
    type Protocol = ProviderMarker;
    type ControlHandle = ProviderControlHandle;

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

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

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

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

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

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

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

                std::task::Poll::Ready(Some(match header.ordinal {
                    0x6daeaad83184076b => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ProviderGetFontRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ProviderGetFontRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ProviderControlHandle { inner: this.inner.clone() };
                        Ok(ProviderRequest::GetFont {
                            request: req.request,

                            responder: ProviderGetFontResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x27aba13280090db3 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ProviderGetFamilyInfoRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ProviderGetFamilyInfoRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ProviderControlHandle { inner: this.inner.clone() };
                        Ok(ProviderRequest::GetFamilyInfo {
                            family: req.family,

                            responder: ProviderGetFamilyInfoResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x5481d24f1a4b0671 => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ProviderGetTypefaceRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ProviderGetTypefaceRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ProviderControlHandle { inner: this.inner.clone() };
                        Ok(ProviderRequest::GetTypeface {
                            request: req.request,

                            responder: ProviderGetTypefaceResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x7520ee83bf25c9ca => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ProviderGetFontFamilyInfoRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ProviderGetFontFamilyInfoRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ProviderControlHandle { inner: this.inner.clone() };
                        Ok(ProviderRequest::GetFontFamilyInfo {
                            family: req.family,

                            responder: ProviderGetFontFamilyInfoResponder {
                                control_handle: std::mem::ManuallyDrop::new(control_handle),
                                tx_id: header.tx_id,
                            },
                        })
                    }
                    0x196898fd17cb694c => {
                        header.validate_request_tx_id(fidl::MethodType::TwoWay)?;
                        let mut req = fidl::new_empty!(
                            ProviderRegisterFontSetEventListenerRequest,
                            fidl::encoding::DefaultFuchsiaResourceDialect
                        );
                        fidl::encoding::Decoder::<fidl::encoding::DefaultFuchsiaResourceDialect>::decode_into::<ProviderRegisterFontSetEventListenerRequest>(&header, _body_bytes, handles, &mut req)?;
                        let control_handle = ProviderControlHandle { inner: this.inner.clone() };
                        Ok(ProviderRequest::RegisterFontSetEventListener {
                            listener: req.listener,

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

/// Provider of digital font files and metadata.
///
/// TODO(https://fxbug.dev/42170326): Remove deprecated methods and move to provider.fidl.
#[derive(Debug)]
pub enum ProviderRequest {
    /// Deprecated. See `GetTypeface`.
    ///
    /// Returns font that matches specified `request`.
    GetFont { request: Request, responder: ProviderGetFontResponder },
    /// Deprecated. See `GetFontFamilyInfo`.
    ///
    /// Returns information for the specified font family or null if there is
    /// no family with the specified name. This function respects family name
    /// aliases and ignores case, so request for "robotoSLAB" will return
    /// FamilyInfo for "Roboto Slab".
    GetFamilyInfo { family: String, responder: ProviderGetFamilyInfoResponder },
    /// Returns a typeface that matches the specified `request`, or an empty table if no matching
    /// face is found. (The latter is more likely to happen if `TypefaceRequestFlags.EXACT_FAMILY`
    /// is used to disable fallbacks.)
    GetTypeface { request: TypefaceRequest, responder: ProviderGetTypefaceResponder },
    /// Returns information for the specified font family, or an empty table if there is no family
    /// with the specified name.
    ///
    /// This function respects family name aliases and ignores case. For example, "RobotoSlab" is an
    /// alias for the canonical name "Roboto Slab". A request for "robotoSLAB" would return the
    /// `FontFamilyInfo` for "Roboto Slab" due to the case-insensitivity and alias resolution.
    GetFontFamilyInfo { family: FamilyName, responder: ProviderGetFontFamilyInfoResponder },
    /// Register a listener to be notified when the set of available fonts or mappings has changed.
    /// A client can register as many listeners as it wishes.
    ///
    /// To unregister, close the channel.
    RegisterFontSetEventListener {
        listener: fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
        responder: ProviderRegisterFontSetEventListenerResponder,
    },
}

impl ProviderRequest {
    #[allow(irrefutable_let_patterns)]
    pub fn into_get_font(self) -> Option<(Request, ProviderGetFontResponder)> {
        if let ProviderRequest::GetFont { request, responder } = self {
            Some((request, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_get_family_info(self) -> Option<(String, ProviderGetFamilyInfoResponder)> {
        if let ProviderRequest::GetFamilyInfo { family, responder } = self {
            Some((family, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_get_typeface(self) -> Option<(TypefaceRequest, ProviderGetTypefaceResponder)> {
        if let ProviderRequest::GetTypeface { request, responder } = self {
            Some((request, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_get_font_family_info(
        self,
    ) -> Option<(FamilyName, ProviderGetFontFamilyInfoResponder)> {
        if let ProviderRequest::GetFontFamilyInfo { family, responder } = self {
            Some((family, responder))
        } else {
            None
        }
    }

    #[allow(irrefutable_let_patterns)]
    pub fn into_register_font_set_event_listener(
        self,
    ) -> Option<(
        fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
        ProviderRegisterFontSetEventListenerResponder,
    )> {
        if let ProviderRequest::RegisterFontSetEventListener { listener, responder } = self {
            Some((listener, responder))
        } else {
            None
        }
    }

    /// Name of the method defined in FIDL
    pub fn method_name(&self) -> &'static str {
        match *self {
            ProviderRequest::GetFont { .. } => "get_font",
            ProviderRequest::GetFamilyInfo { .. } => "get_family_info",
            ProviderRequest::GetTypeface { .. } => "get_typeface",
            ProviderRequest::GetFontFamilyInfo { .. } => "get_font_family_info",
            ProviderRequest::RegisterFontSetEventListener { .. } => {
                "register_font_set_event_listener"
            }
        }
    }
}

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

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

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

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

impl ProviderControlHandle {}

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

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

impl fidl::endpoints::Responder for ProviderGetFontResponder {
    type ControlHandle = ProviderControlHandle;

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

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

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

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

    fn send_raw(&self, mut response: Option<Response>) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<ProviderGetFontResponse>(
            (response.as_mut(),),
            self.tx_id,
            0x6daeaad83184076b,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

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

impl fidl::endpoints::Responder for ProviderGetFamilyInfoResponder {
    type ControlHandle = ProviderControlHandle;

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

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

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

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

    fn send_raw(&self, mut family_info: Option<&FamilyInfo>) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<ProviderGetFamilyInfoResponse>(
            (family_info,),
            self.tx_id,
            0x27aba13280090db3,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

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

impl fidl::endpoints::Responder for ProviderGetTypefaceResponder {
    type ControlHandle = ProviderControlHandle;

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

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

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

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

    fn send_raw(&self, mut response: TypefaceResponse) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<ProviderGetTypefaceResponse>(
            (&mut response,),
            self.tx_id,
            0x5481d24f1a4b0671,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

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

impl fidl::endpoints::Responder for ProviderGetFontFamilyInfoResponder {
    type ControlHandle = ProviderControlHandle;

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

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

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

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

    fn send_raw(&self, mut family_info: &FontFamilyInfo) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<ProviderGetFontFamilyInfoResponse>(
            (family_info,),
            self.tx_id,
            0x7520ee83bf25c9ca,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

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

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

impl fidl::endpoints::Responder for ProviderRegisterFontSetEventListenerResponder {
    type ControlHandle = ProviderControlHandle;

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

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

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

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

    fn send_raw(&self) -> Result<(), fidl::Error> {
        self.control_handle.inner.send::<fidl::encoding::EmptyPayload>(
            (),
            self.tx_id,
            0x196898fd17cb694c,
            fidl::encoding::DynamicFlags::empty(),
        )
    }
}

mod internal {
    use super::*;
    unsafe impl fidl::encoding::TypeMarker for TypefaceRequestFlags {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            4
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            4
        }
    }

    impl fidl::encoding::ValueTypeMarker for TypefaceRequestFlags {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Self, D>
        for TypefaceRequestFlags
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Self>(offset);
            if self.bits() & Self::all().bits() != self.bits() {
                return Err(fidl::Error::InvalidBitsValue);
            }
            encoder.write_num(self.bits(), offset);
            Ok(())
        }
    }

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

        #[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);
            let prim = decoder.read_num::<u32>(offset);
            *self = Self::from_bits(prim).ok_or(fidl::Error::InvalidBitsValue)?;
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for CacheMissPolicy {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for CacheMissPolicy {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

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

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

        #[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);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive(prim).ok_or(fidl::Error::InvalidEnumValue)?;
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for FallbackGroup {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for FallbackGroup {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

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

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for FallbackGroup {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::None
        }

        #[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);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive(prim).ok_or(fidl::Error::InvalidEnumValue)?;
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for GenericFontFamily {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for GenericFontFamily {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

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

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

        #[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);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive(prim).ok_or(fidl::Error::InvalidEnumValue)?;
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for Slant {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for Slant {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

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

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

        #[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);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive(prim).ok_or(fidl::Error::InvalidEnumValue)?;
            Ok(())
        }
    }
    unsafe impl fidl::encoding::TypeMarker for Width {
        type Owned = Self;

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            std::mem::align_of::<u32>()
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            std::mem::size_of::<u32>()
        }

        #[inline(always)]
        fn encode_is_copy() -> bool {
            true
        }

        #[inline(always)]
        fn decode_is_copy() -> bool {
            false
        }
    }

    impl fidl::encoding::ValueTypeMarker for Width {
        type Borrowed<'a> = Self;
        #[inline(always)]
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            *value
        }
    }

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

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

        #[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);
            let prim = decoder.read_num::<u32>(offset);

            *self = Self::from_primitive(prim).ok_or(fidl::Error::InvalidEnumValue)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FamilyInfo {
        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<FamilyInfo, D>
        for &FamilyInfo
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FamilyInfo>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FamilyInfo, D>::encode(
                (
                    <fidl::encoding::BoundedString<128> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.name,
                    ),
                    <fidl::encoding::Vector<Style, 300> as fidl::encoding::ValueTypeMarker>::borrow(
                        &self.styles,
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::BoundedString<128>, D>,
            T1: fidl::encoding::Encode<fidl::encoding::Vector<Style, 300>, D>,
        > fidl::encoding::Encode<FamilyInfo, D> for (T0, T1)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FamilyInfo>(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)?;
            self.1.encode(encoder, offset + 16, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for FamilyInfo {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                name: fidl::new_empty!(fidl::encoding::BoundedString<128>, D),
                styles: fidl::new_empty!(fidl::encoding::Vector<Style, 300>, 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<128>,
                D,
                &mut self.name,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(fidl::encoding::Vector<Style, 300>, D, &mut self.styles, decoder, offset + 16, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FamilyName {
        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<FamilyName, D>
        for &FamilyName
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FamilyName>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FamilyName, D>::encode(
                (<fidl::encoding::BoundedString<128> as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.name,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::BoundedString<128>, D>,
        > fidl::encoding::Encode<FamilyName, 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::<FamilyName>(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 FamilyName {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { name: fidl::new_empty!(fidl::encoding::BoundedString<128>, 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<128>,
                D,
                &mut self.name,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FontSetEventListenerOnFontSetUpdatedRequest {
        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<FontSetEventListenerOnFontSetUpdatedRequest, D>
        for &FontSetEventListenerOnFontSetUpdatedRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FontSetEventListenerOnFontSetUpdatedRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<FontSetEventListenerOnFontSetUpdatedRequest, D>::encode(
                (<FontSetUpdatedEvent as fidl::encoding::ValueTypeMarker>::borrow(&self.event),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<FontSetUpdatedEvent, D>,
        > fidl::encoding::Encode<FontSetEventListenerOnFontSetUpdatedRequest, 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::<FontSetEventListenerOnFontSetUpdatedRequest>(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 FontSetEventListenerOnFontSetUpdatedRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { event: fidl::new_empty!(FontSetUpdatedEvent, 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!(FontSetUpdatedEvent, D, &mut self.event, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ProviderGetFamilyInfoRequest {
        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<ProviderGetFamilyInfoRequest, D> for &ProviderGetFamilyInfoRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetFamilyInfoRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ProviderGetFamilyInfoRequest, D>::encode(
                (<fidl::encoding::BoundedString<128> as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.family,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::BoundedString<128>, D>,
        > fidl::encoding::Encode<ProviderGetFamilyInfoRequest, 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::<ProviderGetFamilyInfoRequest>(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 ProviderGetFamilyInfoRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { family: fidl::new_empty!(fidl::encoding::BoundedString<128>, 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<128>,
                D,
                &mut self.family,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

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

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

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

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ProviderGetFamilyInfoResponse, D>
        for &ProviderGetFamilyInfoResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetFamilyInfoResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ProviderGetFamilyInfoResponse, D>::encode(
                (<fidl::encoding::Boxed<FamilyInfo> as fidl::encoding::ValueTypeMarker>::borrow(
                    &self.family_info,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::Boxed<FamilyInfo>, D>,
        > fidl::encoding::Encode<ProviderGetFamilyInfoResponse, 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::<ProviderGetFamilyInfoResponse>(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 ProviderGetFamilyInfoResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { family_info: fidl::new_empty!(fidl::encoding::Boxed<FamilyInfo>, 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::Boxed<FamilyInfo>,
                D,
                &mut self.family_info,
                decoder,
                offset + 0,
                _depth
            )?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ProviderGetFontFamilyInfoRequest {
        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<ProviderGetFontFamilyInfoRequest, D>
        for &ProviderGetFontFamilyInfoRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetFontFamilyInfoRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ProviderGetFontFamilyInfoRequest, D>::encode(
                (<FamilyName as fidl::encoding::ValueTypeMarker>::borrow(&self.family),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<FamilyName, D>>
        fidl::encoding::Encode<ProviderGetFontFamilyInfoRequest, 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::<ProviderGetFontFamilyInfoRequest>(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 ProviderGetFontFamilyInfoRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { family: fidl::new_empty!(FamilyName, 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!(FamilyName, D, &mut self.family, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for ProviderGetFontFamilyInfoResponse {
        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<ProviderGetFontFamilyInfoResponse, D>
        for &ProviderGetFontFamilyInfoResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetFontFamilyInfoResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ProviderGetFontFamilyInfoResponse, D>::encode(
                (<FontFamilyInfo as fidl::encoding::ValueTypeMarker>::borrow(&self.family_info),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<FontFamilyInfo, D>>
        fidl::encoding::Encode<ProviderGetFontFamilyInfoResponse, 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::<ProviderGetFontFamilyInfoResponse>(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 ProviderGetFontFamilyInfoResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { family_info: fidl::new_empty!(FontFamilyInfo, 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!(FontFamilyInfo, D, &mut self.family_info, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            64
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect>
        fidl::encoding::Encode<ProviderGetFontRequest, D> for &ProviderGetFontRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetFontRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ProviderGetFontRequest, D>::encode(
                (<Request as fidl::encoding::ValueTypeMarker>::borrow(&self.request),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<Request, D>>
        fidl::encoding::Encode<ProviderGetFontRequest, 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::<ProviderGetFontRequest>(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 ProviderGetFontRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { request: fidl::new_empty!(Request, 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!(Request, D, &mut self.request, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ProviderGetFontResponse {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

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

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

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

    unsafe impl
        fidl::encoding::Encode<
            ProviderGetFontResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ProviderGetFontResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetFontResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ProviderGetFontResponse, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <fidl::encoding::Boxed<Response> as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.response),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<
                fidl::encoding::Boxed<Response>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        >
        fidl::encoding::Encode<
            ProviderGetFontResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetFontResponse>(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 fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ProviderGetFontResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                response: fidl::new_empty!(
                    fidl::encoding::Boxed<Response>,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

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

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

    unsafe impl fidl::encoding::TypeMarker for ProviderGetTypefaceRequest {
        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<ProviderGetTypefaceRequest, D> for &ProviderGetTypefaceRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetTypefaceRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<ProviderGetTypefaceRequest, D>::encode(
                (<TypefaceRequest as fidl::encoding::ValueTypeMarker>::borrow(&self.request),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<D: fidl::encoding::ResourceDialect, T0: fidl::encoding::Encode<TypefaceRequest, D>>
        fidl::encoding::Encode<ProviderGetTypefaceRequest, 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::<ProviderGetTypefaceRequest>(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 ProviderGetTypefaceRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self { request: fidl::new_empty!(TypefaceRequest, 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!(TypefaceRequest, D, &mut self.request, decoder, offset + 0, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for ProviderGetTypefaceResponse {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for ProviderGetTypefaceResponse {
        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
        fidl::encoding::Encode<
            ProviderGetTypefaceResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ProviderGetTypefaceResponse
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetTypefaceResponse>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                ProviderGetTypefaceResponse,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (<TypefaceResponse as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                    &mut self.response,
                ),),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<TypefaceResponse, fidl::encoding::DefaultFuchsiaResourceDialect>,
        >
        fidl::encoding::Encode<
            ProviderGetTypefaceResponse,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderGetTypefaceResponse>(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 fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ProviderGetTypefaceResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                response: fidl::new_empty!(
                    TypefaceResponse,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

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

    impl fidl::encoding::ResourceTypeMarker for ProviderRegisterFontSetEventListenerRequest {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            4
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            4
        }
    }

    unsafe impl
        fidl::encoding::Encode<
            ProviderRegisterFontSetEventListenerRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for &mut ProviderRegisterFontSetEventListenerRequest
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderRegisterFontSetEventListenerRequest>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<
                ProviderRegisterFontSetEventListenerRequest,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >::encode(
                (
                    <fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
                    > as fidl::encoding::ResourceTypeMarker>::take_or_borrow(
                        &mut self.listener
                    ),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<
                fidl::encoding::Endpoint<fidl::endpoints::ClientEnd<FontSetEventListenerMarker>>,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
        >
        fidl::encoding::Encode<
            ProviderRegisterFontSetEventListenerRequest,
            fidl::encoding::DefaultFuchsiaResourceDialect,
        > for (T0,)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<ProviderRegisterFontSetEventListenerRequest>(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 fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for ProviderRegisterFontSetEventListenerRequest
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                listener: fidl::new_empty!(
                    fidl::encoding::Endpoint<
                        fidl::endpoints::ClientEnd<FontSetEventListenerMarker>,
                    >,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
            }
        }

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

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

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            64
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Request, D> for &Request {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Request>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Request, D>::encode(
                (
                    <fidl::encoding::Optional<fidl::encoding::BoundedString<128>> as fidl::encoding::ValueTypeMarker>::borrow(&self.family),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.weight),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.width),
                    <Slant as fidl::encoding::ValueTypeMarker>::borrow(&self.slant),
                    <fidl::encoding::Optional<fidl::encoding::Vector<fidl::encoding::BoundedString<35>, 8>> as fidl::encoding::ValueTypeMarker>::borrow(&self.language),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.character),
                    <FallbackGroup as fidl::encoding::ValueTypeMarker>::borrow(&self.fallback_group),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.flags),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<fidl::encoding::Optional<fidl::encoding::BoundedString<128>>, D>,
            T1: fidl::encoding::Encode<u32, D>,
            T2: fidl::encoding::Encode<u32, D>,
            T3: fidl::encoding::Encode<Slant, D>,
            T4: fidl::encoding::Encode<
                fidl::encoding::Optional<
                    fidl::encoding::Vector<fidl::encoding::BoundedString<35>, 8>,
                >,
                D,
            >,
            T5: fidl::encoding::Encode<u32, D>,
            T6: fidl::encoding::Encode<FallbackGroup, D>,
            T7: fidl::encoding::Encode<u32, D>,
        > fidl::encoding::Encode<Request, D> for (T0, T1, T2, T3, T4, T5, T6, T7)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Request>(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(24);
                (ptr as *mut u64).write_unaligned(0);
            }
            unsafe {
                let ptr = encoder.buf.as_mut_ptr().add(offset).offset(56);
                (ptr as *mut u64).write_unaligned(0);
            }
            // Write the fields.
            self.0.encode(encoder, offset + 0, depth)?;
            self.1.encode(encoder, offset + 16, depth)?;
            self.2.encode(encoder, offset + 20, depth)?;
            self.3.encode(encoder, offset + 24, depth)?;
            self.4.encode(encoder, offset + 32, depth)?;
            self.5.encode(encoder, offset + 48, depth)?;
            self.6.encode(encoder, offset + 52, depth)?;
            self.7.encode(encoder, offset + 56, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Request {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                family: fidl::new_empty!(
                    fidl::encoding::Optional<fidl::encoding::BoundedString<128>>,
                    D
                ),
                weight: fidl::new_empty!(u32, D),
                width: fidl::new_empty!(u32, D),
                slant: fidl::new_empty!(Slant, D),
                language: fidl::new_empty!(
                    fidl::encoding::Optional<
                        fidl::encoding::Vector<fidl::encoding::BoundedString<35>, 8>,
                    >,
                    D
                ),
                character: fidl::new_empty!(u32, D),
                fallback_group: fidl::new_empty!(FallbackGroup, D),
                flags: 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(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,
                });
            }
            let ptr = unsafe { decoder.buf.as_ptr().add(offset).offset(56) };
            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 + 56 + ((mask as u64).trailing_zeros() / 8) as usize,
                });
            }
            fidl::decode!(
                fidl::encoding::Optional<fidl::encoding::BoundedString<128>>,
                D,
                &mut self.family,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(u32, D, &mut self.weight, decoder, offset + 16, _depth)?;
            fidl::decode!(u32, D, &mut self.width, decoder, offset + 20, _depth)?;
            fidl::decode!(Slant, D, &mut self.slant, decoder, offset + 24, _depth)?;
            fidl::decode!(
                fidl::encoding::Optional<
                    fidl::encoding::Vector<fidl::encoding::BoundedString<35>, 8>,
                >,
                D,
                &mut self.language,
                decoder,
                offset + 32,
                _depth
            )?;
            fidl::decode!(u32, D, &mut self.character, decoder, offset + 48, _depth)?;
            fidl::decode!(
                FallbackGroup,
                D,
                &mut self.fallback_group,
                decoder,
                offset + 52,
                _depth
            )?;
            fidl::decode!(u32, D, &mut self.flags, decoder, offset + 56, _depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::ResourceTypeMarker for Response {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

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

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

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            24
        }
    }

    unsafe impl fidl::encoding::Encode<Response, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut Response
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Response>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Response, fidl::encoding::DefaultFuchsiaResourceDialect>::encode(
                (
                    <fidl_fuchsia_mem::Buffer as fidl::encoding::ResourceTypeMarker>::take_or_borrow(&mut self.buffer),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.buffer_id),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.font_index),
                ),
                encoder, offset, _depth
            )
        }
    }
    unsafe impl<
            T0: fidl::encoding::Encode<
                fidl_fuchsia_mem::Buffer,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            T1: fidl::encoding::Encode<u32, fidl::encoding::DefaultFuchsiaResourceDialect>,
            T2: fidl::encoding::Encode<u32, fidl::encoding::DefaultFuchsiaResourceDialect>,
        > fidl::encoding::Encode<Response, fidl::encoding::DefaultFuchsiaResourceDialect>
        for (T0, T1, T2)
    {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Response>(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)?;
            self.1.encode(encoder, offset + 16, depth)?;
            self.2.encode(encoder, offset + 20, depth)?;
            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect> for Response {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                buffer: fidl::new_empty!(
                    fidl_fuchsia_mem::Buffer,
                    fidl::encoding::DefaultFuchsiaResourceDialect
                ),
                buffer_id: fidl::new_empty!(u32, fidl::encoding::DefaultFuchsiaResourceDialect),
                font_index: fidl::new_empty!(u32, fidl::encoding::DefaultFuchsiaResourceDialect),
            }
        }

        #[inline]
        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            // Verify that padding bytes are zero.
            fidl::decode!(
                fidl_fuchsia_mem::Buffer,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.buffer,
                decoder,
                offset + 0,
                _depth
            )?;
            fidl::decode!(
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.buffer_id,
                decoder,
                offset + 16,
                _depth
            )?;
            fidl::decode!(
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
                &mut self.font_index,
                decoder,
                offset + 20,
                _depth
            )?;
            Ok(())
        }
    }

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

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

        #[inline(always)]
        fn inline_align(_context: fidl::encoding::Context) -> usize {
            4
        }

        #[inline(always)]
        fn inline_size(_context: fidl::encoding::Context) -> usize {
            12
        }
    }

    unsafe impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Encode<Style, D> for &Style {
        #[inline]
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            _depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Style>(offset);
            // Delegate to tuple encoding.
            fidl::encoding::Encode::<Style, D>::encode(
                (
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.weight),
                    <u32 as fidl::encoding::ValueTypeMarker>::borrow(&self.width),
                    <Slant as fidl::encoding::ValueTypeMarker>::borrow(&self.slant),
                ),
                encoder,
                offset,
                _depth,
            )
        }
    }
    unsafe impl<
            D: fidl::encoding::ResourceDialect,
            T0: fidl::encoding::Encode<u32, D>,
            T1: fidl::encoding::Encode<u32, D>,
            T2: fidl::encoding::Encode<Slant, D>,
        > fidl::encoding::Encode<Style, 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::<Style>(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)?;
            self.1.encode(encoder, offset + 4, depth)?;
            self.2.encode(encoder, offset + 8, depth)?;
            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Style {
        #[inline(always)]
        fn new_empty() -> Self {
            Self {
                weight: fidl::new_empty!(u32, D),
                width: fidl::new_empty!(u32, D),
                slant: fidl::new_empty!(Slant, 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!(u32, D, &mut self.weight, decoder, offset + 0, _depth)?;
            fidl::decode!(u32, D, &mut self.width, decoder, offset + 4, _depth)?;
            fidl::decode!(Slant, D, &mut self.slant, decoder, offset + 8, _depth)?;
            Ok(())
        }
    }

    impl FontFamilyInfo {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.styles {
                return 2;
            }
            if let Some(_) = self.name {
                return 1;
            }
            0
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FontFamilyInfo {
        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<FontFamilyInfo, D>
        for &FontFamilyInfo
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FontFamilyInfo>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<FamilyName, D>(
                self.name.as_ref().map(<FamilyName as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<Style2, 300>, D>(
            self.styles.as_ref().map(<fidl::encoding::Vector<Style2, 300> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

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

        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);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <FamilyName as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.name.get_or_insert_with(|| fidl::new_empty!(FamilyName, D));
                fidl::decode!(FamilyName, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<Style2, 300> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.styles.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<Style2, 300>, D),
                );
                fidl::decode!(fidl::encoding::Vector<Style2, 300>, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl FontSetUpdatedEvent {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            0
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for FontSetUpdatedEvent {
        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<FontSetUpdatedEvent, D>
        for &FontSetUpdatedEvent
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<FontSetUpdatedEvent>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;

            Ok(())
        }
    }

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

        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);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl Style2 {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.width {
                return 3;
            }
            if let Some(_) = self.weight {
                return 2;
            }
            if let Some(_) = self.slant {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ValueTypeMarker for Style2 {
        type Borrowed<'a> = &'a Self;
        fn borrow(value: &<Self as fidl::encoding::TypeMarker>::Owned) -> Self::Borrowed<'_> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for Style2 {
        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<Style2, D> for &Style2 {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<Style2>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<Slant, D>(
                self.slant.as_ref().map(<Slant as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<u16, D>(
                self.weight.as_ref().map(<u16 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<Width, D>(
                self.width.as_ref().map(<Width as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl<D: fidl::encoding::ResourceDialect> fidl::encoding::Decode<Self, D> for Style2 {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        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);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <Slant as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.slant.get_or_insert_with(|| fidl::new_empty!(Slant, D));
                fidl::decode!(Slant, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u16 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.weight.get_or_insert_with(|| fidl::new_empty!(u16, D));
                fidl::decode!(u16, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <Width as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.width.get_or_insert_with(|| fidl::new_empty!(Width, D));
                fidl::decode!(Width, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl TypefaceQuery {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.full_name {
                return 7;
            }
            if let Some(_) = self.postscript_name {
                return 6;
            }
            if let Some(_) = self.fallback_family {
                return 5;
            }
            if let Some(_) = self.code_points {
                return 4;
            }
            if let Some(_) = self.languages {
                return 3;
            }
            if let Some(_) = self.style {
                return 2;
            }
            if let Some(_) = self.family {
                return 1;
            }
            0
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for TypefaceQuery {
        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<TypefaceQuery, D>
        for &TypefaceQuery
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TypefaceQuery>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<FamilyName, D>(
                self.family.as_ref().map(<FamilyName as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<Style2, D>(
                self.style.as_ref().map(<Style2 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<fidl_fuchsia_intl::LocaleId, 8>, D>(
            self.languages.as_ref().map(<fidl::encoding::Vector<fidl_fuchsia_intl::LocaleId, 8> as fidl::encoding::ValueTypeMarker>::borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 4 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (4 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::Vector<u32, 128>, D>(
                self.code_points.as_ref().map(
                    <fidl::encoding::Vector<u32, 128> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 5 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (5 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<GenericFontFamily, D>(
                self.fallback_family
                    .as_ref()
                    .map(<GenericFontFamily as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 6 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (6 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::BoundedString<63>, D>(
                self.postscript_name.as_ref().map(
                    <fidl::encoding::BoundedString<63> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 7 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (7 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl::encoding::BoundedString<128>, D>(
                self.full_name.as_ref().map(
                    <fidl::encoding::BoundedString<128> as fidl::encoding::ValueTypeMarker>::borrow,
                ),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

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

        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);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <FamilyName as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.family.get_or_insert_with(|| fidl::new_empty!(FamilyName, D));
                fidl::decode!(FamilyName, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <Style2 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.style.get_or_insert_with(|| fidl::new_empty!(Style2, D));
                fidl::decode!(Style2, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size = <fidl::encoding::Vector<fidl_fuchsia_intl::LocaleId, 8> as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.languages.get_or_insert_with(
                    || fidl::new_empty!(fidl::encoding::Vector<fidl_fuchsia_intl::LocaleId, 8>, D),
                );
                fidl::decode!(fidl::encoding::Vector<fidl_fuchsia_intl::LocaleId, 8>, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 4 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::Vector<u32, 128> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .code_points
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::Vector<u32, 128>, D));
                fidl::decode!(fidl::encoding::Vector<u32, 128>, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 5 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <GenericFontFamily as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .fallback_family
                    .get_or_insert_with(|| fidl::new_empty!(GenericFontFamily, D));
                fidl::decode!(GenericFontFamily, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 6 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::BoundedString<63> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .postscript_name
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::BoundedString<63>, D));
                fidl::decode!(
                    fidl::encoding::BoundedString<63>,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 7 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl::encoding::BoundedString<128> as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .full_name
                    .get_or_insert_with(|| fidl::new_empty!(fidl::encoding::BoundedString<128>, D));
                fidl::decode!(
                    fidl::encoding::BoundedString<128>,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                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);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl TypefaceRequest {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.cache_miss_policy {
                return 3;
            }
            if let Some(_) = self.flags {
                return 2;
            }
            if let Some(_) = self.query {
                return 1;
            }
            0
        }
    }

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

    unsafe impl fidl::encoding::TypeMarker for TypefaceRequest {
        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<TypefaceRequest, D>
        for &TypefaceRequest
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<'_, D>,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TypefaceRequest>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<TypefaceQuery, D>(
                self.query.as_ref().map(<TypefaceQuery as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<TypefaceRequestFlags, D>(
                self.flags
                    .as_ref()
                    .map(<TypefaceRequestFlags as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<CacheMissPolicy, D>(
                self.cache_miss_policy
                    .as_ref()
                    .map(<CacheMissPolicy as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

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

        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);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <TypefaceQuery as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.query.get_or_insert_with(|| fidl::new_empty!(TypefaceQuery, D));
                fidl::decode!(TypefaceQuery, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <TypefaceRequestFlags as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref =
                    self.flags.get_or_insert_with(|| fidl::new_empty!(TypefaceRequestFlags, D));
                fidl::decode!(
                    TypefaceRequestFlags,
                    D,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <CacheMissPolicy as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self
                    .cache_miss_policy
                    .get_or_insert_with(|| fidl::new_empty!(CacheMissPolicy, D));
                fidl::decode!(CacheMissPolicy, D, val_ref, decoder, inner_offset, inner_depth)?;
                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);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }

    impl TypefaceResponse {
        #[inline(always)]
        fn max_ordinal_present(&self) -> u64 {
            if let Some(_) = self.font_index {
                return 3;
            }
            if let Some(_) = self.buffer_id {
                return 2;
            }
            if let Some(_) = self.buffer {
                return 1;
            }
            0
        }
    }

    impl fidl::encoding::ResourceTypeMarker for TypefaceResponse {
        type Borrowed<'a> = &'a mut Self;
        fn take_or_borrow<'a>(
            value: &'a mut <Self as fidl::encoding::TypeMarker>::Owned,
        ) -> Self::Borrowed<'a> {
            value
        }
    }

    unsafe impl fidl::encoding::TypeMarker for TypefaceResponse {
        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
        fidl::encoding::Encode<TypefaceResponse, fidl::encoding::DefaultFuchsiaResourceDialect>
        for &mut TypefaceResponse
    {
        unsafe fn encode(
            self,
            encoder: &mut fidl::encoding::Encoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            encoder.debug_check_bounds::<TypefaceResponse>(offset);
            // Vector header
            let max_ordinal: u64 = self.max_ordinal_present();
            encoder.write_num(max_ordinal, offset);
            encoder.write_num(fidl::encoding::ALLOC_PRESENT_U64, offset + 8);
            // Calling encoder.out_of_line_offset(0) is not allowed.
            if max_ordinal == 0 {
                return Ok(());
            }
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = max_ordinal as usize * envelope_size;
            #[allow(unused_variables)]
            let offset = encoder.out_of_line_offset(bytes_len);
            let mut _prev_end_offset: usize = 0;
            if 1 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (1 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<fidl_fuchsia_mem::Buffer, fidl::encoding::DefaultFuchsiaResourceDialect>(
            self.buffer.as_mut().map(<fidl_fuchsia_mem::Buffer as fidl::encoding::ResourceTypeMarker>::take_or_borrow),
            encoder, offset + cur_offset, depth
        )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 2 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (2 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.buffer_id.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;
            if 3 > max_ordinal {
                return Ok(());
            }

            // Write at offset+(ordinal-1)*envelope_size, since ordinals are one-based and envelopes
            // are envelope_size bytes.
            let cur_offset: usize = (3 - 1) * envelope_size;

            // Zero reserved fields.
            encoder.padding(offset + _prev_end_offset, cur_offset - _prev_end_offset);

            // Safety:
            // - bytes_len is calculated to fit envelope_size*max(member.ordinal).
            // - Since cur_offset is envelope_size*(member.ordinal - 1) and the envelope takes
            //   envelope_size bytes, there is always sufficient room.
            fidl::encoding::encode_in_envelope_optional::<
                u32,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >(
                self.font_index.as_ref().map(<u32 as fidl::encoding::ValueTypeMarker>::borrow),
                encoder,
                offset + cur_offset,
                depth,
            )?;

            _prev_end_offset = cur_offset + envelope_size;

            Ok(())
        }
    }

    impl fidl::encoding::Decode<Self, fidl::encoding::DefaultFuchsiaResourceDialect>
        for TypefaceResponse
    {
        #[inline(always)]
        fn new_empty() -> Self {
            Self::default()
        }

        unsafe fn decode(
            &mut self,
            decoder: &mut fidl::encoding::Decoder<
                '_,
                fidl::encoding::DefaultFuchsiaResourceDialect,
            >,
            offset: usize,
            mut depth: fidl::encoding::Depth,
        ) -> fidl::Result<()> {
            decoder.debug_check_bounds::<Self>(offset);
            let len = match fidl::encoding::decode_vector_header(decoder, offset)? {
                None => return Err(fidl::Error::NotNullable),
                Some(len) => len,
            };
            // Calling decoder.out_of_line_offset(0) is not allowed.
            if len == 0 {
                return Ok(());
            };
            depth.increment()?;
            let envelope_size = 8;
            let bytes_len = len * envelope_size;
            let offset = decoder.out_of_line_offset(bytes_len)?;
            // Decode the envelope for each type.
            let mut _next_ordinal_to_read = 0;
            let mut next_offset = offset;
            let end_offset = offset + bytes_len;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 1 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <fidl_fuchsia_mem::Buffer as fidl::encoding::TypeMarker>::inline_size(
                        decoder.context,
                    );
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.buffer.get_or_insert_with(|| {
                    fidl::new_empty!(
                        fidl_fuchsia_mem::Buffer,
                        fidl::encoding::DefaultFuchsiaResourceDialect
                    )
                });
                fidl::decode!(
                    fidl_fuchsia_mem::Buffer,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 2 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.buffer_id.get_or_insert_with(|| {
                    fidl::new_empty!(u32, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    u32,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                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);
                }
            }

            next_offset += envelope_size;
            _next_ordinal_to_read += 1;
            if next_offset >= end_offset {
                return Ok(());
            }

            // Decode unknown envelopes for gaps in ordinals.
            while _next_ordinal_to_read < 3 {
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                _next_ordinal_to_read += 1;
                next_offset += envelope_size;
            }

            let next_out_of_line = decoder.next_out_of_line();
            let handles_before = decoder.remaining_handles();
            if let Some((inlined, num_bytes, num_handles)) =
                fidl::encoding::decode_envelope_header(decoder, next_offset)?
            {
                let member_inline_size =
                    <u32 as fidl::encoding::TypeMarker>::inline_size(decoder.context);
                if inlined != (member_inline_size <= 4) {
                    return Err(fidl::Error::InvalidInlineBitInEnvelope);
                }
                let inner_offset;
                let mut inner_depth = depth.clone();
                if inlined {
                    decoder.check_inline_envelope_padding(next_offset, member_inline_size)?;
                    inner_offset = next_offset;
                } else {
                    inner_offset = decoder.out_of_line_offset(member_inline_size)?;
                    inner_depth.increment()?;
                }
                let val_ref = self.font_index.get_or_insert_with(|| {
                    fidl::new_empty!(u32, fidl::encoding::DefaultFuchsiaResourceDialect)
                });
                fidl::decode!(
                    u32,
                    fidl::encoding::DefaultFuchsiaResourceDialect,
                    val_ref,
                    decoder,
                    inner_offset,
                    inner_depth
                )?;
                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);
                }
            }

            next_offset += envelope_size;

            // Decode the remaining unknown envelopes.
            while next_offset < end_offset {
                _next_ordinal_to_read += 1;
                fidl::encoding::decode_unknown_envelope(decoder, next_offset, depth)?;
                next_offset += envelope_size;
            }

            Ok(())
        }
    }
}