Struct alkahest::FixedUsize

#[repr(transparent)]
pub struct FixedUsize(_);

Type used to represent usize in serialized form.

Used for serialization of sizes and offsets. This places limitation on sequence sizes and data sizes that can be serialized.

Number of bits is controlled by "fixed*" feature flags. Default is "fixed32" - fixed sizes are 32-bit integers.

Implementations

impl FixedUsize

pub fn truncate_unchecked(value: usize) -> Self

Truncates usize to FixedUsizeType without checking.

pub fn to_le_bytes(self) -> [u8; 4]

Converts to byte array in little endian.

pub fn from_le_bytes(bytes: [u8; 4]) -> Result<Self, TryFromIntError>

Converts from byte array in little endian.

Errors

Returns Err if the byte array does not represent a valid usize.

Trait Implementations

impl Clone for FixedUsize

fn clone(&self) -> FixedUsize

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FixedUsize

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

Formats the value using the given formatter.

impl Default for FixedUsize

fn default() -> FixedUsize

Returns the “default value” for a type.

impl Deserialize<'_, FixedUsize> for FixedUsize

fn deserialize(de: Deserializer<'_>) -> Result<Self, DeserializeError>

Deserializes value provided deserializer. Returns deserialized value and the number of bytes consumed from the and of input.

fn deserialize_in_place( &mut self, de: Deserializer<'_> ) -> Result<(), DeserializeError>

Deserializes value in-place provided deserializer. Overwrites self with data from the input.

impl Deserialize<'_, FixedUsize> for usize

fn deserialize(de: Deserializer<'_>) -> Result<Self, DeserializeError>

Deserializes value provided deserializer. Returns deserialized value and the number of bytes consumed from the and of input.

fn deserialize_in_place( &mut self, de: Deserializer<'_> ) -> Result<(), DeserializeError>

Deserializes value in-place provided deserializer. Overwrites self with data from the input.

impl Formula for FixedUsize

const MAX_STACK_SIZE: Option<usize> = _

Maximum size of stack this formula occupies.

const EXACT_SIZE: bool = true

Signals that MAX_STACK_SIZE is accurate.

const HEAPLESS: bool = true

Signals that heap is not used for serialzation.

impl From<FixedUsize> for u32

fn from(value: FixedUsize) -> Self

Converts to this type from the input type.

impl From<FixedUsize> for usize

fn from(value: FixedUsize) -> Self

Converts to this type from the input type.

impl Hash for FixedUsize

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for FixedUsize

fn cmp(&self, other: &FixedUsize) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl PartialEq<FixedUsize> for FixedUsize

fn eq(&self, other: &FixedUsize) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd<FixedUsize> for FixedUsize

fn partial_cmp(&self, other: &FixedUsize) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize<FixedUsize> for &FixedUsize

fn serialize<B>(self, sizes: &mut Sizes, buffer: B) -> Result<(), B::Error>where B: Buffer,

Serializes self into the given buffer. heap specifies the size of the buffer’s heap occupied prior to this call.

fn size_hint(&self) -> Option<Sizes>

Returns heap and stack sizes required to serialize self. If some sizes are returned they must be exact.

impl Serialize<FixedUsize> for &usize

fn serialize<B>(self, sizes: &mut Sizes, buffer: B) -> Result<(), B::Error>where B: Buffer,

Serializes self into the given buffer. heap specifies the size of the buffer’s heap occupied prior to this call.

fn size_hint(&self) -> Option<Sizes>

Returns heap and stack sizes required to serialize self. If some sizes are returned they must be exact.

impl Serialize<FixedUsize> for FixedUsize

fn serialize<B>(self, sizes: &mut Sizes, buffer: B) -> Result<(), B::Error>where B: Buffer,

Serializes self into the given buffer. heap specifies the size of the buffer’s heap occupied prior to this call.

fn size_hint(&self) -> Option<Sizes>

Returns heap and stack sizes required to serialize self. If some sizes are returned they must be exact.

impl Serialize<FixedUsize> for usize

fn serialize<B>(self, sizes: &mut Sizes, buffer: B) -> Result<(), B::Error>where B: Buffer,

Serializes self into the given buffer. heap specifies the size of the buffer’s heap occupied prior to this call.

fn size_hint(&self) -> Option<Sizes>

Returns heap and stack sizes required to serialize self. If some sizes are returned they must be exact.

impl TryFrom<u32> for FixedUsize

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(value: u32) -> Result<Self, TryFromIntError>

Performs the conversion.

impl TryFrom<usize> for FixedUsize

type Error = TryFromIntError

The type returned in the event of a conversion error.

fn try_from(value: usize) -> Result<Self, TryFromIntError>

Performs the conversion.

impl BareFormula for FixedUsize

impl Copy for FixedUsize

impl Eq for FixedUsize

impl StructuralEq for FixedUsize

impl StructuralPartialEq for FixedUsize