Struct ComponentFuncTypeEncoder 

pub struct ComponentFuncTypeEncoder<'a> { /* private fields */ }

Used to encode component function types.

Implementations

impl<'a> ComponentFuncTypeEncoder<'a>

pub fn async_(&mut self, is_async: bool) -> &mut Self

Available on crate feature component-model only.

Indicates whether this is an async function or not.

If this function is not invoked then the function type will not be async.

Panics

This method will panic if parameters or results have already been encoded.

pub fn params<'b, P, T>(&mut self, params: P) -> &mut Self

where P: IntoIterator<Item = (&'b str, T)>, P::IntoIter: ExactSizeIterator, T: Into<ComponentValType>,

Available on crate feature component-model only.

Defines named parameters.

Parameters must be defined before defining results.

Panics

This method will panic if the function is called twice since parameters can only be encoded once.

pub fn result(&mut self, ty: Option<ComponentValType>) -> &mut Self

Available on crate feature component-model only.

Defines a single unnamed result.

This method cannot be used with results.

Panics

This method will panic if the function is called twice, called before the params method, or called in addition to the results method.

Trait Implementations

impl<'a> Debug for ComponentFuncTypeEncoder<'a>

Available on crate feature component-model only.

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

Formats the value using the given formatter.