Enum wasihost_core::wasi_snapshot_preview1::Advice

#[non_exhaustive]
pub enum Advice {
    Normal,
    Sequential,
    Random,
    Willneed,
    Dontneed,
    Noreuse,
}

File or memory access pattern advisory information.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Normal

The application has no advice to give on its behavior with respect to the specified data.

Sequential

The application expects to access the specified data sequentially from lower offsets to higher offsets.

Random

The application expects to access the specified data in a random order.

Willneed

The application expects to access the specified data in the near future.

Dontneed

The application expects that it will not access the specified data in the near future.

Noreuse

The application expects to access the specified data once and then not reuse it thereafter.

Trait Implementations

impl Clone for Advice

fn clone(&self) -> Advice

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Advice

impl Debug for Advice

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

Formats the value using the given formatter.

impl Eq for Advice

impl Hash for Advice

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, 

Feeds a slice of this type into the given [Hasher].

impl Ord for Advice

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

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl PartialEq<Advice> for Advice

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

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

#[must_use] fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Advice> for Advice

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

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

#[must_use] fn lt(&self, other: &Rhs) -> bool

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

#[must_use] fn le(&self, other: &Rhs) -> bool

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

#[must_use] fn gt(&self, other: &Rhs) -> bool

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

#[must_use] 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 StructuralEq for Advice

impl StructuralPartialEq for Advice

impl WasiValue for Advice

type NativeType = advice

The native WASM type.

fn from_native(native: Self::NativeType) -> Result<Self, WasiValueError<Self>>

Converts a native WASM value to its Rust representation.

fn to_native(self) -> Self::NativeType

Converts a Rust value to its native WASM representation.