Struct wasmi::TypedFunc

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#[repr(transparent)]
pub struct TypedFunc<Params, Results> { /* private fields */ }

Expand description

A typed Func instance.

Note

This allows a more efficient execution by avoiding type checks upon function call since those type checks are performed upon TypedFunc construction and enforced by the Rust type system.

Use TypedFunc instead of Func if possible.

Implementations

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impl<Params, Results> TypedFunc<Params, Results>

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pub fn func(&self) -> &Func

Returns the underlying Func.

Note

This loses the static type information in the process.

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impl<Params, Results> TypedFunc<Params, Results>where
Params: WasmParams,
Results: WasmResults,

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pub fn call(
 &self,
 ctx: impl AsContextMut,
 params: Params
) -> Result<Results, Trap>

Invokes this Wasm or host function with the specified parameters.

Returns either the results of the call, or a Trap if one happened.

For more information, see the Func::typed and Func::call documentation.

Panics

Panics if ctx does not own this TypedFunc.

Errors

If the execution of the called Wasm function traps.

Trait Implementations

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impl<Params, Results> Clone for TypedFunc<Params, Results>

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fn clone(&self) -> TypedFunc<Params, Results>

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

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impl<Params, Results> Debug for TypedFunc<Params, Results>

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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<Params, Results> Copy for TypedFunc<Params, Results>

Auto Trait Implementations

impl<Params, Results> RefUnwindSafe for TypedFunc<Params, Results>

impl<Params, Results> Send for TypedFunc<Params, Results>

impl<Params, Results> Sync for TypedFunc<Params, Results>

impl<Params, Results> Unpin for TypedFunc<Params, Results>

impl<Params, Results> UnwindSafe for TypedFunc<Params, Results>

Blanket Implementations

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> Downcast for Twhere
T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s. Read more

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s. Read more

impl<T> DowncastSync for Twhere
T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · 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.

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impl<T> ToOwned for Twhere
T: Clone,

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 for Twhere
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Struct wasmi::TypedFunc

Implementations

impl<Params, Results> TypedFunc<Params, Results>

pub fn func(&self) -> &Func

impl<Params, Results> TypedFunc<Params, Results>where Params: WasmParams, Results: WasmResults,

pub fn call( &self, ctx: impl AsContextMut, params: Params) -> Result<Results, Trap>

Trait Implementations

impl<Params, Results> Clone for TypedFunc<Params, Results>

fn clone(&self) -> TypedFunc<Params, Results>

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

impl<Params, Results> Debug for TypedFunc<Params, Results>

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

impl<Params, Results> Copy for TypedFunc<Params, Results>

Auto Trait Implementations

impl<Params, Results> RefUnwindSafe for TypedFunc<Params, Results>

impl<Params, Results> Send for TypedFunc<Params, Results>

impl<Params, Results> Sync for TypedFunc<Params, Results>

impl<Params, Results> Unpin for TypedFunc<Params, Results>

impl<Params, Results> UnwindSafe for TypedFunc<Params, Results>

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> Downcast for Twhere T: Any,

fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>

fn as_any(&self) -> &(dyn Any + 'static)

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

impl<T> DowncastSync for Twhere T: Any + Send + Sync,

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Sync + Send + 'static>

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for Twhere T: Clone,

type Owned = T

fn to_owned(&self) -> T

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

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

type Error = Infallible

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

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

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

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

impl<Params, Results> TypedFunc<Params, Results>where
Params: WasmParams,
Results: WasmResults,

pub fn call(
&self,
ctx: impl AsContextMut,
params: Params
) -> Result<Results, Trap>

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

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

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

impl<T> Downcast for Twhere
T: Any,

impl<T> DowncastSync for Twhere
T: Any + Send + Sync,

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

impl<T> ToOwned for Twhere
T: Clone,

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

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