Struct WasiRandom

pub struct WasiRandom;

A helper struct which implements HasData for the wasi:random APIs.

This can be useful when directly calling add_to_linker functions directly, such as [wasmtime_wasi::p2::bindings::random::random::add_to_linker] as the D type parameter. See HasData for more information about the type parameter’s purpose.

When using this type you can skip the WasiRandomView trait, for example.

Examples

use wasmtime::component::Linker;
use wasmtime::{Engine, Result, Config};
use wasmtime_wasi::random::*;

struct MyStoreState {
    random: WasiRandomCtx,
}

fn main() -> Result<()> {
    let mut config = Config::new();
    config.async_support(true);
    let engine = Engine::new(&config)?;
    let mut linker = Linker::new(&engine);

    wasmtime_wasi::p2::bindings::random::random::add_to_linker::<MyStoreState, WasiRandom>(
        &mut linker,
        |state| &mut state.random,
    )?;
    Ok(())
}

Trait Implementations

impl HasData for WasiRandom

type Data<'a> = &'a mut WasiRandomCtx

The data associated with this trait implementation, chiefly used as a generic associated type to allow plumbing the 'a lifetime into the definition here.