Struct Pages 

pub struct Pages(pub u32);

Units of WebAssembly pages (as specified to be 65,536 bytes).

Tuple Fields

0: u32

Implementations

impl Pages

pub const fn max_value() -> Self

Returns the largest value that can be represented by the Pages type.

This is defined by the WebAssembly standard as 65,536 pages.

pub fn checked_add(self, rhs: Self) -> Option<Self>

Checked addition. Computes self + rhs, returning None if overflow occurred.

pub fn bytes(self) -> Bytes

Calculate number of bytes from pages.

pub fn from_bytes_rounded_up(bytes: u64) -> Option<Self>

Calculate the number of pages needed to hold the given number of bytes, rounding up to include any partial page, returning None if overflow occurred.

Trait Implementations

impl<T> Add<T> for Pages

where T: Into<Self>,

type Output = Pages

The resulting type after applying the + operator.

fn add(self, rhs: T) -> Self

Performs the + operation.

impl Archive for Pages

where u32: Archive,

const COPY_OPTIMIZATION: CopyOptimization<Self>

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

type Archived = ArchivedPages

The archived representation of this type.

type Resolver = PagesResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve(&self, resolver: Self::Resolver, out: Place<Self::Archived>)

Creates the archived version of this value at the given position and writes it to the given output.

impl Clone for Pages

fn clone(&self) -> Pages

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Pages

impl Debug for Pages

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

Formats the value using the given formatter.

impl<__D: Fallible + ?Sized> Deserialize<Pages, __D> for Archived<Pages>

where u32: Archive, <u32 as Archive>::Archived: Deserialize<u32, __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<Pages, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl Eq for Pages

impl From<Pages> for Bytes

fn from(pages: Pages) -> Self

Converts to this type from the input type.

impl From<u32> for Pages

fn from(other: u32) -> Self

Converts to this type from the input type.

impl Hash for Pages

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 Pages

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

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Pages

fn eq(&self, other: &Pages) -> 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 PartialOrd for Pages

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

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<__S: Fallible + ?Sized> Serialize<__S> for Pages

where u32: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.

impl StructuralPartialEq for Pages

impl<T> Sub<T> for Pages

where T: Into<Self>,

type Output = Pages

The resulting type after applying the - operator.

fn sub(self, rhs: T) -> Self

Performs the - operation.

impl TryFrom<Bytes> for Pages

type Error = PageCountOutOfRange

The type returned in the event of a conversion error.

fn try_from(bytes: Bytes) -> Result<Self, Self::Error>

Performs the conversion.