Struct OptionalVector 

pub struct OptionalVector<'de, T> { /* private fields */ }

An optional FIDL vector

Implementations

impl<'de, T> OptionalVector<'de, T>

pub fn encode_present(out: &mut MaybeUninit<Self>, len: u64)

Encodes that a vector is present in a slot.

pub fn encode_absent(out: &mut MaybeUninit<Self>)

Encodes that a vector is absent in a slot.

pub fn is_some(&self) -> bool

Returns whether the vector is present.

pub fn is_none(&self) -> bool

Returns whether the vector is absent.

pub fn as_ref(&self) -> Option<&Vector<'_, T>>

Gets a reference to the vector, if any.

pub fn to_option(self) -> Option<Vector<'de, T>>

Converts the optional wire vector to an Option<WireVector>.

pub unsafe fn decode_raw<D>( slot: Slot<'_, Self>, decoder: &mut D, max_len: u64, ) -> Result<(), DecodeError>

where D: Decoder<'de> + ?Sized, T: Decode<D>,

Decodes a wire vector which contains raw data.

Safety

The elements of the wire vector must not need to be individually decoded, and must always be valid.

Trait Implementations

impl<T: Constrained> Constrained for OptionalVector<'_, T>

type Constraint = (u64, <T as Constrained>::Constraint)

Type of constraint information for this type.

fn validate( slot: Slot<'_, Self>, constraint: Self::Constraint, ) -> Result<(), ValidationError>

Validate a slot of this type against a constraint. Can be called when pointers/envelopes are just presence markers.

impl<T: Debug> Debug for OptionalVector<'_, T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de, D, T> Decode<D> for OptionalVector<'de, T>

where D: Decoder<'de> + ?Sized, T: Decode<D>,

fn decode( slot: Slot<'_, Self>, decoder: &mut D, constraint: Self::Constraint, ) -> Result<(), DecodeError>

Decodes a value into a slot using a decoder.

impl<T> Drop for OptionalVector<'_, T>

fn drop(&mut self)

Executes the destructor for this type.

impl<'a, W, E, T> EncodeOption<OptionalVector<'static, W>, E> for &'a [T]

where W: Wire, E: Encoder + ?Sized, T: Encode<W, E>, &'a T: Encode<W, E>,

fn encode_option( this: Option<Self>, encoder: &mut E, out: &mut MaybeUninit<OptionalVector<'static, W>>, constraint: (u64, <W as Constrained>::Constraint), ) -> Result<(), EncodeError>

Encodes this optional value into an encoder and output.

impl<'a, W, E, T, const N: usize> EncodeOption<OptionalVector<'static, W>, E> for &'a [T; N]

where W: Wire, E: Encoder + ?Sized, T: Encode<W, E>, &'a T: Encode<W, E>,

fn encode_option( this: Option<Self>, encoder: &mut E, out: &mut MaybeUninit<OptionalVector<'static, W>>, constraint: (u64, <W as Constrained>::Constraint), ) -> Result<(), EncodeError>

Encodes this optional value into an encoder and output.

impl<'a, W, E, T> EncodeOption<OptionalVector<'static, W>, E> for &'a Vec<T>

where W: Wire, E: Encoder + ?Sized, T: Encode<W, E>, &'a T: Encode<W, E>,

fn encode_option( this: Option<Self>, encoder: &mut E, out: &mut MaybeUninit<OptionalVector<'static, W>>, constraint: (u64, <W as Constrained>::Constraint), ) -> Result<(), EncodeError>

Encodes this optional value into an encoder and output.

impl<W, E, T, const N: usize> EncodeOption<OptionalVector<'static, W>, E> for [T; N]

where W: Wire, E: Encoder + ?Sized, T: Encode<W, E>,

fn encode_option( this: Option<Self>, encoder: &mut E, out: &mut MaybeUninit<OptionalVector<'static, W>>, constraint: (u64, <W as Constrained>::Constraint), ) -> Result<(), EncodeError>

Encodes this optional value into an encoder and output.

impl<W, E, T> EncodeOption<OptionalVector<'static, W>, E> for Vec<T>

where W: Wire, E: Encoder + ?Sized, T: Encode<W, E>,

fn encode_option( this: Option<Self>, encoder: &mut E, out: &mut MaybeUninit<OptionalVector<'static, W>>, constraint: (u64, <W as Constrained>::Constraint), ) -> Result<(), EncodeError>

Encodes this optional value into an encoder and output.

impl<T: FromWire<W>, W> FromWireOption<OptionalVector<'_, W>> for Vec<T>

fn from_wire_option(wire: OptionalVector<'_, W>) -> Option<Self>

Converts the given owned value to an option of this type.

impl<T: FromWireRef<W>, W> FromWireOptionRef<OptionalVector<'_, W>> for Vec<T>

fn from_wire_option_ref(wire: &OptionalVector<'_, W>) -> Option<Self>

Converts the given reference to an option of this type.

impl<T: IntoNatural> IntoNatural for OptionalVector<'_, T>

type Natural = Option<Vec<<T as IntoNatural>::Natural>>

A good default type for this wire type to convert into.

fn into_natural(self) -> Self::Natural

Converts this type into its natural equivalent.

impl<T, U> PartialEq<Option<U>> for OptionalVector<'_, T>

where for<'de> Vector<'de, T>: PartialEq<U>,

fn eq(&self, other: &Option<U>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: Wire> Wire for OptionalVector<'static, T>

type Narrowed<'de> = OptionalVector<'de, <T as Wire>::Narrowed<'de>>

The narrowed wire type, restricted to the 'de lifetime.

fn zero_padding(out: &mut MaybeUninit<Self>)

Writes zeroes to the padding for this type, if any.