Struct VMMemory

pub struct VMMemory {
    pub from: Arc<dyn Memory>,
    pub instance_ref: Option<WeakOrStrongInstanceRef>,
}

A memory export value.

Fields

from: Arc<dyn Memory>

Pointer to the containing Memory.

instance_ref: Option<WeakOrStrongInstanceRef>

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

Implementations

impl VMMemory

pub fn ty(&self) -> MemoryType

Get the type for this exported memory

pub fn style(&self) -> &MemoryStyle

Get the style for this exported memory

pub fn same(&self, other: &Self) -> bool

Returns whether or not the two VMMemorys refer to the same Memory.

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 VMMemory

fn clone(&self) -> VMMemory

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VMMemory

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

Formats the value using the given formatter.

impl From<VMMemory> for Export

fn from(memory: VMMemory) -> Self

Converts to this type from the input type.

impl From<VMMemory> for VMExtern

fn from(memory: VMMemory) -> Self

Converts to this type from the input type.

impl Send for VMMemory

Safety

This is correct because there is no non-threadsafe logic directly in this type; correct use of the raw memory from multiple threads via definition requires unsafe and is the responsibilty of the user of this type.

impl Sync for VMMemory

Safety

This is correct because the values directly in definition should be considered immutable and the type is both Send and Clone (thus marking it Sync adds no new behavior, it only makes this type easier to use)