Struct VMGlobal

pub struct VMGlobal {
    pub from: Arc<Global>,
    pub instance_ref: Option<WeakOrStrongInstanceRef>,
}

A global export value.

Fields

from: Arc<Global>

The global declaration, used for compatibility checking.

instance_ref: Option<WeakOrStrongInstanceRef>

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

Implementations

impl VMGlobal

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

Returns whether or not the two VMGlobals refer to the same Global.

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 VMGlobal

fn clone(&self) -> VMGlobal

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for VMGlobal

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

Formats the value using the given formatter.

impl From<VMGlobal> for Export

fn from(global: VMGlobal) -> Self

Converts to this type from the input type.

impl From<VMGlobal> for VMExtern

fn from(global: VMGlobal) -> Self

Converts to this type from the input type.

impl Send for VMGlobal

Safety

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

impl Sync for VMGlobal

Safety

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