Struct wasmtime_runtime::VMContext

source · [−]

#[repr(C, align(16))]
pub struct VMContext {}

Expand description

The VM “context”, which is pointed to by the vmctx arg in Cranelift. This has information about globals, memories, tables, and other runtime state associated with the current instance.

The struct here is empty, as the sizes of these fields are dynamic, and we can’t describe them in Rust’s type system. Sufficient memory is allocated at runtime.

TODO: We could move the globals into the vmctx allocation too.

Implementations

impl VMContext

pub unsafe fn host_state(&self) -> &dyn Any

Return a reference to the host state associated with this Instance.

Safety

This is unsafe because it doesn’t work on just any VMContext, it must be a VMContext allocated as part of an Instance.

Trait Implementations

impl Debug for VMContext

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

Formats the value using the given formatter. Read more

Auto Trait Implementations

impl RefUnwindSafe for VMContext

impl Send for VMContext

impl Sync for VMContext

impl Unpin for VMContext

impl UnwindSafe for VMContext

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub 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.

const: unstable · source

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

Performs the conversion.