Struct wasm_encoder::InstanceSection

pub struct InstanceSection { /* private fields */ }

An encoder for the instance section.

Note that this is part of the module linking proposal and is not currently part of stable WebAssembly.

Example

use wasm_encoder::{Module, InstanceSection, Export};

let mut instances = InstanceSection::new();
instances.instantiate(0, vec![
    ("x", Export::Function(0)),
    ("", Export::Module(2)),
    ("foo", Export::Global(0)),
]);

let mut module = Module::new();
module.section(&instances);

let wasm_bytes = module.finish();

Implementations

impl InstanceSection

pub fn new() -> Self

Construct a new instance section encoder.

pub fn len(&self) -> u32

How many instances have been defined inside this section so far?

pub fn is_empty(&self) -> bool

Determines if the section is empty.

pub fn instantiate<'a, I>(&mut self, module: u32, args: I) -> &mut Self where
    I: IntoIterator<Item = (&'a str, Export)>,
    I::IntoIter: ExactSizeIterator, 

Define an instantiation of the given module with the given items as arguments to the instantiation.

Trait Implementations

impl Clone for InstanceSection

fn clone(&self) -> InstanceSection

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for InstanceSection

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

Formats the value using the given formatter.

impl Default for InstanceSection

fn default() -> InstanceSection

Returns the “default value” for a type.

impl Section for InstanceSection

fn id(&self) -> u8

This section’s id.

fn encode<S>(&self, sink: &mut S) where
    S: Extend<u8>, 

Write this section’s data and data length prefix into the given sink.