Trait ToWasmtimeResult 

pub trait ToWasmtimeResult<T> {
    // Required method
    fn to_wasmtime_result(self) -> Result<T, Error>;
}

Extension trait for easily converting anyhow::Results into wasmtime::Results.

This is a small convenience helper to replace anyhow_result.map_err(wasmtime::Error::from_anyhow) with anyhow_result.to_wasmtime_result().

Requires that the "anyhow" cargo feature is enabled.

Example

#![cfg(feature = "anyhow")]
use wasmtime::ToWasmtimeResult as _;

fn returns_anyhow_result() -> anyhow::Result<u32> {
    anyhow::bail!("eep")
}

fn returns_wasmtime_result() -> wasmtime::Result<()> {
    // The following is equivalent to
    //
    //     returns_anyhow_result()
    //         .map_err(wasmtime::Error::from_anyhow)?;
    returns_anyhow_result().to_wasmtime_result()?;
    Ok(())
}

let error: wasmtime::Error = returns_wasmtime_result().unwrap_err();
assert!(error.is::<anyhow::Error>());
assert_eq!(error.to_string(), "eep");

Required Methods

fn to_wasmtime_result(self) -> Result<T, Error>

Convert this anyhow::Result<T> into a wasmtime::Result<T>.

Implementors

impl<T> ToWasmtimeResult<T> for Result<T, Error>