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

An encoder for the instance section of WebAssembly components.

Example

use wasm_encoder::{Component, ComponentInstanceSection, ComponentExportKind, ComponentExternName};

let mut instances = ComponentInstanceSection::new();
instances.export_items([(ComponentExternName::Kebab("foo"), ComponentExportKind::Func, 0)]);
instances.instantiate(1, [("foo", ComponentExportKind::Instance, 0)]);

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

let bytes = component.finish();

Implementations§

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impl ComponentInstanceSection

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pub fn new() -> Self

Create a new instance section encoder.

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pub fn len(&self) -> u32

The number of instances in the section.

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pub fn is_empty(&self) -> bool

Determines if the section is empty.

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pub fn instantiate<A, S>(&mut self, component_index: u32, args: A) -> &mut Selfwhere A: IntoIterator<Item = (S, ComponentExportKind, u32)>, A::IntoIter: ExactSizeIterator, S: AsRef<str>,

Define an instance by instantiating a component.

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pub fn export_items<'a, E>(&mut self, exports: E) -> &mut Selfwhere E: IntoIterator<Item = (ComponentExternName<'a>, ComponentExportKind, u32)>, E::IntoIter: ExactSizeIterator,

Define an instance by exporting items.

Trait Implementations§

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impl Clone for ComponentInstanceSection

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fn clone(&self) -> ComponentInstanceSection

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl ComponentSection for ComponentInstanceSection

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fn id(&self) -> u8

Gets the section identifier for this section.
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fn append_to_component(&self, dst: &mut Vec<u8>)

Appends this section to the specified destination list of bytes.
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impl Debug for ComponentInstanceSection

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

Formats the value using the given formatter. Read more
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impl Default for ComponentInstanceSection

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fn default() -> ComponentInstanceSection

Returns the “default value” for a type. Read more
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impl Encode for ComponentInstanceSection

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

Encode the type into the given byte sink.

Auto Trait Implementations§

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.