pub struct ComponentImportSection { /* private fields */ }
Expand description

An encoder for the import section of WebAssembly components.

Example

use wasm_encoder::{Component, ComponentTypeSection, PrimitiveValType, ComponentImportSection, ComponentTypeRef, ComponentExternName};

let mut types = ComponentTypeSection::new();

// Define a function type of `[string, string] -> string`.
types
  .function()
  .params(
    [
      ("a", PrimitiveValType::String),
      ("b", PrimitiveValType::String)
    ]
  )
  .result(PrimitiveValType::String);

// This imports a function named `f` with the type defined above
let mut imports = ComponentImportSection::new();
let name = ComponentExternName::Kebab("f");
imports.import(name, ComponentTypeRef::Func(0));

let mut component = Component::new();
component.section(&types);
component.section(&imports);

let bytes = component.finish();

Implementations§

source§

impl ComponentImportSection

source

pub fn new() -> Self

Create a new component import section encoder.

source

pub fn len(&self) -> u32

The number of imports in the section.

source

pub fn is_empty(&self) -> bool

Determines if the section is empty.

source

pub fn import( &mut self, name: impl AsComponentExternName, ty: ComponentTypeRef ) -> &mut Self

Define an import in the component import section.

Trait Implementations§

source§

impl Clone for ComponentImportSection

source§

fn clone(&self) -> ComponentImportSection

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl ComponentSection for ComponentImportSection

source§

fn id(&self) -> u8

Gets the section identifier for this section.
source§

fn append_to_component(&self, dst: &mut Vec<u8>)

Appends this section to the specified destination list of bytes.
source§

impl Debug for ComponentImportSection

source§

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

Formats the value using the given formatter. Read more
source§

impl Default for ComponentImportSection

source§

fn default() -> ComponentImportSection

Returns the “default value” for a type. Read more
source§

impl Encode for ComponentImportSection

source§

fn encode(&self, sink: &mut Vec<u8>)

Encode the type into the given byte sink.

Auto Trait Implementations§

Blanket Implementations§

source§

impl<T> Any for Twhere T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for Twhere T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for Twhere T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T, U> Into<U> for Twhere U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> ToOwned for Twhere T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for Twhere U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.