Struct wasmer_runtime::wasm::Global

pub struct Global { /* fields omitted */ }

A handle to a Wasm Global

Implementations

impl Global

pub fn new(value: Value<Function>) -> Global

Create a new Global value.

Example

let global = Global::new(Value::I32(42));

pub fn new_mutable(value: Value<Function>) -> Global

Create a new, mutable Global value.

Example

let global = Global::new_mutable(Value::I32(42));

pub fn descriptor(&self) -> GlobalDescriptor

Get the GlobalDescriptor generated for this global.

pub fn set(&self, value: Value<Function>)

Set the value help by this global.

This method will panic if the value is the wrong type.

pub fn get(&self) -> Value<Function>

Get the value held by this global.

Example

let global = Global::new_mutable(Value::I32(42));
assert_eq!(global.get(), Value::I32(42));

global.set(Value::I32(7));
assert_eq!(global.get(), Value::I32(7));

Trait Implementations

impl Clone for Global

fn clone(&self) -> Global

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Global

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

Formats the value using the given formatter.

impl<'a> Exportable<'a> for Global

fn to_export(&self) -> Export

This function is used when providedd the [Extern] as exportable, so it can be used while instantiating the [Module].

fn get_self_from_extern(r#extern: &'a Extern) -> Result<&'a Global, ExportError>

Implementation of how to get the export corresponding to the implementing type from an [Instance] by name.

impl<'_> From<&'_ Global> for Global

fn from(new_global: &Global) -> Global

Performs the conversion.