Struct wasmtime::V128

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pub struct V128(/* private fields */);
Expand description

Representation of a 128-bit vector type, v128, for WebAssembly.

This type corresponds to the v128 type in WebAssembly and can be used with the TypedFunc API for example. This is additionally the payload of Val::V128.

§Platform specifics

This type can currently only be used on x86_64 and AArch64 with the TypedFunc API. Rust does not have stable support on other platforms for this type so invoking functions with v128 parameters requires the Func::call API (or perhaps Func::call_unchecked.

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impl V128

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pub fn as_u128(&self) -> u128

Returns the representation of this v128 as a 128-bit integer in Rust.

Trait Implementations§

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impl Clone for V128

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fn clone(&self) -> V128

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for V128

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

Formats the value using the given formatter. Read more
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impl From<V128> for Val

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fn from(val: V128) -> Val

Converts to this type from the input type.
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impl From<V128> for u128

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fn from(val: V128) -> u128

Converts to this type from the input type.
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impl From<u128> for V128

Primary constructor of a V128 type.

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fn from(val: u128) -> V128

Converts to this type from the input type.
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impl Ord for V128

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fn cmp(&self, other: &V128) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for V128

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fn eq(&self, other: &V128) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for V128

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fn partial_cmp(&self, other: &V128) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for V128

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impl Eq for V128

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impl WasmTy for V128

Auto Trait Implementations§

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impl Freeze for V128

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impl RefUnwindSafe for V128

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impl Send for V128

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impl Sync for V128

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impl Unpin for V128

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impl UnwindSafe for V128

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

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fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Compare self to key and return true if they are equal.
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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

Checks if this value is equivalent to the given key. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WasmParams for T
where T: WasmTy,

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type ValRawStorage = <(T,) as WasmParams>::ValRawStorage

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fn typecheck( engine: &Engine, params: impl ExactSizeIterator<Item = ValType>, position: TypeCheckPosition, ) -> Result<(), Error>

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fn vmgcref_pointing_to_object_count(&self) -> usize

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fn store( self, store: &mut AutoAssertNoGc<'_>, func_ty: &FuncType, dst: &mut MaybeUninit<<T as WasmParams>::ValRawStorage>, ) -> Result<(), Error>

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impl<T> WasmResults for T
where T: WasmTy,

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unsafe fn load( store: &mut AutoAssertNoGc<'_>, abi: &<T as WasmParams>::ValRawStorage, ) -> T

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impl<T> WasmRet for T
where T: WasmTy,

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type Fallible = Result<T, Error>

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fn compatible_with_store(&self, store: &StoreOpaque) -> bool

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unsafe fn store( self, store: &mut AutoAssertNoGc<'_>, ptr: &mut [MaybeUninit<ValRaw>], ) -> Result<(), Error>

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fn may_gc() -> bool

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fn func_type(engine: &Engine, params: impl Iterator<Item = ValType>) -> FuncType

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fn into_fallible(self) -> Result<T, Error>

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fn fallible_from_error(error: Error) -> Result<T, Error>