Struct wasmer_vm::VMFunction

source · [−]

pub struct VMFunction {
    pub address: *const VMFunctionBody,
    pub vmctx: VMFunctionEnvironment,
    pub signature: FunctionType,
    pub kind: VMFunctionKind,
    pub call_trampoline: Option<VMTrampoline>,
    pub instance_ref: Option<WeakOrStrongInstanceRef>,
}

Expand description

A function export value.

Fields

address: *const VMFunctionBody

The address of the native-code function.

vmctx: VMFunctionEnvironment

Pointer to the containing VMContext.

signature: FunctionType

The function type, used for compatibility checking.

kind: VMFunctionKind

The function kind (specifies the calling convention for the function).

call_trampoline: Option<VMTrampoline>

Address of the function call trampoline owned by the same VMContext that owns the VMFunctionBody.

May be None when the function is a host function (FunctionType == Dynamic or vmctx == nullptr).

instance_ref: Option<WeakOrStrongInstanceRef>

A “reference” to the instance through the InstanceRef. None if it is a host function.

Implementations

impl VMFunction

pub fn upgrade_instance_ref(&mut self) -> Option<()>

Converts the stored instance ref into a strong InstanceRef if it is weak. Returns None if it cannot be upgraded.

Trait Implementations

impl Clone for VMFunction

fn clone(&self) -> VMFunction

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 VMFunction

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

Formats the value using the given formatter. Read more

impl From<VMFunction> for VMExtern

fn from(func: VMFunction) -> Self

Converts to this type from the input type.

impl MemoryUsage for VMFunction

fn size_of_val(&self, visited: &mut dyn MemoryUsageTracker) -> usize

Returns the size of the referenced value in bytes. Read more

impl PartialEq<VMFunction> for VMFunction

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

This method tests for self and other values to be equal, and is used by ==. Read more

fn ne(&self, other: &VMFunction) -> bool

This method tests for !=.

impl Send for VMFunction

Safety

There is no non-threadsafe logic directly in this type. Calling the function may not be threadsafe.

impl StructuralPartialEq for VMFunction

impl Sync for VMFunction

Safety

The members of an VMFunction are immutable after construction.

Auto Trait Implementations

impl !RefUnwindSafe for VMFunction

impl Unpin for VMFunction

impl !UnwindSafe for VMFunction

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> ArchivePointee for T

type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.

fn pointer_metadata(
&<T as ArchivePointee>::ArchivedMetadata
) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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<F, W, T, D> Deserialize<With<T, W>, D> for F where
    W: DeserializeWith<F, T, D>,
    D: Fallible + ?Sized,
    F: ?Sized,

fn deserialize(
&self,
deserializer: &mut D
) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> 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.

impl<T> Pointee for T

type Metadata = ()

The type for metadata in pointers and references to Self.

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.

const: unstable · source

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

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

Performs the conversion.

impl<T> Upcastable for T where
T: 'static + Any + Send + Sync,

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

upcast ref

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

upcast mut ref

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

upcast boxed dyn