Struct VMFunction

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

A function export value.

Fields

address: *const VMFunctionBody

The address of the native-code function.

vmctx: VMFunctionEnvironment

Pointer to the containing VMContext.

signature: VMSharedSignatureIndex

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.

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

Performs copy-assignment from source.

impl Debug for VMFunction

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

Formats the value using the given formatter.

impl From<VMFunction> for VMExtern

fn from(func: VMFunction) -> Self

Converts to this type from the input type.

impl PartialEq for VMFunction

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

Tests for self and other values to be equal, and is used by ==.

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

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

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.