Struct wasm_metadata::Producers

pub struct Producers(/* private fields */);

A representation of a WebAssembly producers section.

Spec: https://github.com/WebAssembly/tool-conventions/blob/main/ProducersSection.md

Implementations

impl Producers

pub fn empty() -> Self

Creates an empty producers section

pub fn is_empty(&self) -> bool

Indicates if section is empty

pub fn from_wasm(bytes: &[u8]) -> Result<Option<Self>>

Read the producers section from a Wasm binary. Supports both core Modules and Components. In the component case, only returns the producers section in the outer component, ignoring all interior components and modules.

pub fn from_bytes(bytes: &[u8], offset: usize) -> Result<Self>

Read the producers section from a Wasm binary.

pub fn add(&mut self, field: &str, name: &str, version: &str)

Add a name & version value to a field.

The spec says expected field names are “language”, “processed-by”, and “sdk”. The version value should be left blank for languages.

pub fn merge(&mut self, other: &Self)

Add all values found in another Producers section. Values in other take precedence.

pub fn get<'a>(&'a self, field: &str) -> Option<ProducersField<'a>>

Get the contents of a field

pub fn iter<'a>( &'a self ) -> impl Iterator<Item = (&'a String, ProducersField<'a>)> + 'a

Iterate through all fields

pub fn raw_custom_section(&self) -> Vec<u8>

Serialize into the raw bytes of a wasm custom section.

pub fn add_to_wasm(&self, input: &[u8]) -> Result<Vec<u8>>

Merge into an existing wasm module. Rewrites the module with this producers section merged into its existing one, or adds this producers section if none is present.

Trait Implementations

impl Debug for Producers

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

Formats the value using the given formatter.

impl Default for Producers

fn default() -> Self

Returns the “default value” for a type.

impl Display for Producers

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

Formats the value using the given formatter.

impl Serialize for Producers

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.