Enum wasm_opt::Feature

pub enum Feature {
Show 20 variants    None,
    Atomics,
    MutableGlobals,
    TruncSat,
    Simd,
    BulkMemory,
    SignExt,
    ExceptionHandling,
    TailCall,
    ReferenceTypes,
    Multivalue,
    Gc,
    Memory64,
    RelaxedSimd,
    ExtendedConst,
    Strings,
    MultiMemory,
    Mvp,
    Default,
    All,
}

Expand description

Optional wasm features.

The Feature::Mvp feature represents the original spec. Other features are post-MVP, some specified and implemented in all engines, some specified but not implemented, some experimental.

See the WebAssembly roadmap for an indication of which features can be used where.

Variants§

None

None.

Atomics

Atomics.

MutableGlobals

Import and export of mutable globals.

TruncSat

Simd

Fixed-width SIMD.

BulkMemory

Bulk memory operations.

SignExt

Sign extension operations.

ExceptionHandling

Exception handling.

TailCall

Tail calls.

ReferenceTypes

Reference types.

Multivalue

Multi-value.

Gc

Memory64

Large memory.

RelaxedSimd

Relaxed SIMD.

ExtendedConst

Extended constant expressions.

Strings

MultiMemory

Multiple memory.

Mvp

The original WebAssembly specification.

It has the same value as None.

Default

The default feature set.

Includes Feature::SignExt and Feature::MutableGlobals.

All

All features.

Trait Implementations§

impl Clone for Feature

fn clone(&self) -> Feature

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

impl Debug for Feature

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

Formats the value using the given formatter. Read more

impl FromStr for Feature

type Err = ParseError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Feature, <Self as FromStr>::Err>

Parses a string s to return a value of this type. Read more

impl Hash for Feature

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

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

impl PartialEq for Feature

fn eq(&self, other: &Feature) -> 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.

impl TryFrom<&str> for Feature

type Error = ParseError

The type returned in the event of a conversion error.

fn try_from(s: &str) -> Result<Feature, <Self as TryFrom<&str>>::Error>

Performs the conversion.

impl Copy for Feature

impl Eq for Feature

impl StructuralPartialEq for Feature

Auto Trait Implementations§

impl Freeze for Feature

impl RefUnwindSafe for Feature

impl Send for Feature

impl Sync for Feature

impl Unpin for Feature

impl UnwindSafe for Feature

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

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

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> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

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

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

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

The type returned in the event of a conversion error.

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

Performs the conversion.