Struct Module

pub struct Module { /* private fields */ }

Represents a WebAssembly component that is being encoded.

Sections within a WebAssembly module are encoded in a specific order.

Modules may also added as a section to a WebAssembly component.

Implementations

impl Module

pub const HEADER: [u8; 8] = _

The 8-byte header at the beginning of all core wasm modules.

pub fn new() -> Self

Begin writing a new Module.

pub fn section(&mut self, section: &impl Section) -> &mut Self

Write a section into this module.

It is your responsibility to define the sections in the proper order, and to ensure that each kind of section (other than custom sections) is only defined once. While this is a potential footgun, it also allows you to use this crate to easily construct test cases for bad Wasm module encodings.

pub fn as_slice(&self) -> &[u8]

Get the encoded Wasm module as a slice.

pub fn len(&self) -> usize

Give the current size of the module in bytes.

pub fn finish(self) -> Vec<u8>

Finish writing this Wasm module and extract ownership of the encoded bytes.

Trait Implementations

impl Clone for Module

fn clone(&self) -> Module

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Module

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

Formats the value using the given formatter.

impl Default for Module

fn default() -> Self

Returns the “default value” for a type.