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

An encoder for the type section of WebAssembly modules.

Example

use wasm_encoder::{Module, TypeSection, ValType};

let mut types = TypeSection::new();

types.function([ValType::I32, ValType::I32], [ValType::I64]);

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

let bytes = module.finish();

Implementations§

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impl TypeSection

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pub fn new() -> Self

Create a new module type section encoder.

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pub fn len(&self) -> u32

The number of types 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 function<P, R>(&mut self, params: P, results: R) -> &mut Selfwhere P: IntoIterator<Item = ValType>, P::IntoIter: ExactSizeIterator, R: IntoIterator<Item = ValType>, R::IntoIter: ExactSizeIterator,

Define a function type in this type section.

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pub fn array(&mut self, ty: &StorageType, mutable: bool) -> &mut Self

Define an array type in this type section.

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pub fn struct_<F>(&mut self, fields: F) -> &mut Selfwhere F: IntoIterator<Item = FieldType>, F::IntoIter: ExactSizeIterator,

Define a struct type in this type section.

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pub fn subtype(&mut self, ty: &SubType) -> &mut Self

Define an explicit subtype in this type section.

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pub fn rec<T>(&mut self, types: T) -> &mut Selfwhere T: IntoIterator<Item = SubType>, T::IntoIter: ExactSizeIterator,

Define an explicit recursion group in this type section.

Trait Implementations§

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impl Clone for TypeSection

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fn clone(&self) -> TypeSection

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 Debug for TypeSection

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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 TypeSection

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fn default() -> TypeSection

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

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

Encode the type into the given byte sink.
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impl Section for TypeSection

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fn id(&self) -> u8

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

Appends this section to the specified destination list of bytes.

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.