Struct wasmi::Caller

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pub struct Caller<'a, T> { /* private fields */ }

Expand description

Represents the caller’s context when creating a host function via Func::wrap.

Implementations

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impl<'a, T> Caller<'a, T>

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pub fn new<C>(ctx: &'a mut C, instance: Option<Instance>) -> Self where
C: AsContextMut<UserState = T>,

Creates a new Caller from the given store context and Instance handle.

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pub fn get_export(&self, name: &str) -> Option<Extern>

Queries the caller for an exported definition identifier by name.

Returns None if there is no associated Instance of the caller or if the caller does not provide an export under the name name.

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pub fn host_data(&self) -> &T

Returns a shared reference to the host provided data.

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pub fn host_data_mut(&mut self) -> &mut T

Returns an exclusive reference to the host provided data.

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pub fn engine(&self) -> &Engine

Returns a shared reference to the used Engine.

Trait Implementations

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impl<T> AsContext for Caller<'_, T>

type UserState = T

The user state associated with the Store, aka the T in Store<T>.

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fn as_context(&self) -> StoreContext<'_, Self::UserState>

Returns the store context that this type provides access to.

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impl<T> AsContextMut for Caller<'_, T>

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fn as_context_mut(&mut self) -> StoreContextMut<'_, Self::UserState>

Returns the store context that this type provides access to.

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impl<'a, T: AsContextMut> From<&'a mut T> for Caller<'a, T::UserState>

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fn from(ctx: &'a mut T) -> Self

Converts to this type from the input type.

Auto Trait Implementations

impl<'a, T> !RefUnwindSafe for Caller<'a, T>

impl<'a, T> Send for Caller<'a, T> where
T: Send,

impl<'a, T> Sync for Caller<'a, T> where
T: Sync,

impl<'a, T> Unpin for Caller<'a, T>

impl<'a, T> !UnwindSafe for Caller<'a, T>

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,

const: unstable · source

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,

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> Downcast for T where
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 T where
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 T where
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, U> TryFrom for T where
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 T where
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::Caller

Implementations

impl<'a, T> Caller<'a, T>

pub fn new<C>(ctx: &'a mut C, instance: Option<Instance>) -> Self where C: AsContextMut<UserState = T>,

pub fn get_export(&self, name: &str) -> Option<Extern>

pub fn host_data(&self) -> &T

pub fn host_data_mut(&mut self) -> &mut T

pub fn engine(&self) -> &Engine

Trait Implementations

impl<T> AsContext for Caller<'_, T>

type UserState = T

fn as_context(&self) -> StoreContext<'_, Self::UserState>

impl<T> AsContextMut for Caller<'_, T>

fn as_context_mut(&mut self) -> StoreContextMut<'_, Self::UserState>

impl<'a, T: AsContextMut> From<&'a mut T> for Caller<'a, T::UserState>

fn from(ctx: &'a mut T) -> Self

Auto Trait Implementations

impl<'a, T> !RefUnwindSafe for Caller<'a, T>

impl<'a, T> Send for Caller<'a, T> where T: Send,

impl<'a, T> Sync for Caller<'a, T> where T: Sync,

impl<'a, T> Unpin for Caller<'a, T>

impl<'a, T> !UnwindSafe for Caller<'a, T>

Blanket Implementations

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

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

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

fn into(self) -> U

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

type Error = Infallible

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

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

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

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

pub fn new<C>(ctx: &'a mut C, instance: Option<Instance>) -> Self where
C: AsContextMut<UserState = T>,

impl<'a, T> Send for Caller<'a, T> where
T: Send,

impl<'a, T> Sync for Caller<'a, T> where
T: Sync,

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

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

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

impl<T> Downcast for T where
T: Any,

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

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

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

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