#[repr(u8)]
pub enum MemoryStyle { Dynamic { offset_guard_size: u64, }, Static { bound: Pages, offset_guard_size: u64, }, }
Expand description

Implementation styles for WebAssembly linear memory.

Variants§

§

Dynamic

Fields

§offset_guard_size: u64

Our chosen offset-guard size.

It represents the size in bytes of extra guard pages after the end to optimize loads and stores with constant offsets.

The actual memory can be resized and moved.

§

Static

Fields

§bound: Pages

The number of mapped and unmapped pages.

§offset_guard_size: u64

Our chosen offset-guard size.

It represents the size in bytes of extra guard pages after the end to optimize loads and stores with constant offsets.

Address space is allocated up front.

Implementations§

source§

impl MemoryStyle

source

pub fn offset_guard_size(&self) -> u64

Returns the offset-guard size

Trait Implementations§

source§

impl Archive for MemoryStylewhere u64: Archive, Pages: Archive,

§

type Archived = MemoryStyle

The archived representation of this type. Read more
§

type Resolver = MemoryStyleResolver

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

unsafe fn resolve( &self, pos: usize, resolver: <MemoryStyle as Archive>::Resolver, out: *mut <MemoryStyle as Archive>::Archived )

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

impl<__C> CheckBytes<__C> for MemoryStylewhere u64: CheckBytes<__C>, Pages: CheckBytes<__C>, __C: ?Sized,

§

type Error = EnumCheckError<u8>

The error that may result from checking the type.
source§

unsafe fn check_bytes<'__bytecheck>( value: *const MemoryStyle, context: &mut __C ) -> Result<&'__bytecheck MemoryStyle, EnumCheckError<u8>>

Checks whether the given pointer points to a valid value within the given context. Read more
source§

impl Clone for MemoryStyle

source§

fn clone(&self) -> MemoryStyle

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for MemoryStyle

source§

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

Formats the value using the given formatter. Read more
source§

impl<__D> Deserialize<MemoryStyle, __D> for <MemoryStyle as Archive>::Archivedwhere __D: Fallible + ?Sized, u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>, Pages: Archive, <Pages as Archive>::Archived: Deserialize<Pages, __D>,

source§

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

Deserializes using the given deserializer
source§

impl Hash for MemoryStyle

source§

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

Feeds this value into the given Hasher. Read more
1.3.0 · source§

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

Feeds a slice of this type into the given Hasher. Read more
source§

impl PartialEq<MemoryStyle> for MemoryStyle

source§

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

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

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.
source§

impl<__S> Serialize<__S> for MemoryStylewhere __S: Fallible + ?Sized, u64: Serialize<__S>, Pages: Serialize<__S>,

source§

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

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

impl Copy for MemoryStyle

source§

impl Eq for MemoryStyle

source§

impl StructuralEq for MemoryStyle

source§

impl StructuralPartialEq for MemoryStyle

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for Twhere T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
§

impl<T> ArchivePointee for T

§

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
§

fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
§

impl<T> ArchiveUnsized for Twhere T: Archive,

§

type Archived = <T as Archive>::Archived

The archived counterpart of this type. Unlike Archive, it may be unsized. Read more
§

type MetadataResolver = ()

The resolver for the metadata of this type. Read more
§

unsafe fn resolve_metadata( &self, _: usize, _: <T as ArchiveUnsized>::MetadataResolver, _: *mut <<T as ArchiveUnsized>::Archived as ArchivePointee>::ArchivedMetadata )

Creates the archived version of the metadata for this value at the given position and writes it to the given output. Read more
§

unsafe fn resolve_unsized( &self, from: usize, to: usize, resolver: Self::MetadataResolver, out: *mut RelPtr<Self::Archived, <isize as Archive>::Archived> )

Resolves a relative pointer to this value with the given from and to and writes it to the given output. Read more
source§

impl<T> Borrow<T> for Twhere T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
§

impl<T> CallHasher for Twhere T: Hash + ?Sized,

§

default fn get_hash<H, B>(value: &H, build_hasher: &B) -> u64where H: Hash + ?Sized, B: BuildHasher,

§

impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

§

fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer
source§

impl<Q, K> Equivalent<K> for Qwhere Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for Twhere U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

§

impl<T> LayoutRaw for T

§

fn layout_raw(_: <T as Pointee>::Metadata) -> Result<Layout, LayoutError>

Gets the layout of the type.
§

impl<T> Pointee for T

§

type Metadata = ()

The type for metadata in pointers and references to Self.
§

impl<T, S> SerializeUnsized<S> for Twhere T: Serialize<S>, S: Serializer + ?Sized,

§

fn serialize_unsized( &self, serializer: &mut S ) -> Result<usize, <S as Fallible>::Error>

Writes the object and returns the position of the archived type.
§

fn serialize_metadata(&self, _: &mut S) -> Result<(), <S as Fallible>::Error>

Serializes the metadata for the given type.
source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.