Trait HostError

pub trait HostError: Sized + Send {
    // Required methods
    fn from_rpc_error(
        &mut self,
        error: Resource<RpcError>,
    ) -> impl Future<Output = Result<Resource<Error>>> + Send;
    fn from_io_error(
        &mut self,
        error: Resource<IoError>,
    ) -> impl Future<Output = Result<Result<Resource<Error>, Resource<IoError>>>> + Send;
    fn to_debug_string(
        &mut self,
        self_: Resource<Error>,
    ) -> impl Future<Output = Result<String>> + Send;
    fn drop(
        &mut self,
        rep: Resource<Error>,
    ) -> impl Future<Output = Result<()>> + Send;
}

Required Methods

fn from_rpc_error( &mut self, error: Resource<RpcError>, ) -> impl Future<Output = Result<Resource<Error>>> + Send

Converts wrpc:rpc/error.error into error.

fn from_io_error( &mut self, error: Resource<IoError>, ) -> impl Future<Output = Result<Result<Resource<Error>, Resource<IoError>>>> + Send

Attempts to convert wasi:io/error.error into error.

Returns the original wasi:io/error.error in case of mismatch.

fn to_debug_string( &mut self, self_: Resource<Error>, ) -> impl Future<Output = Result<String>> + Send

Returns a string that is suitable to assist humans in debugging this error.

WARNING: The returned string should not be consumed mechanically! It may change across platforms, hosts, or other implementation details. Parsing this string is a major platform-compatibility hazard.

fn drop( &mut self, rep: Resource<Error>, ) -> impl Future<Output = Result<()>> + Send

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<_T: HostError + ?Sized + Send> HostError for &mut _T

async fn from_rpc_error( &mut self, error: Resource<RpcError>, ) -> Result<Resource<Error>>

Converts wrpc:rpc/error.error into error.

async fn from_io_error( &mut self, error: Resource<IoError>, ) -> Result<Result<Resource<Error>, Resource<IoError>>>

Attempts to convert wasi:io/error.error into error.

Returns the original wasi:io/error.error in case of mismatch.

async fn to_debug_string(&mut self, self_: Resource<Error>) -> Result<String>

Returns a string that is suitable to assist humans in debugging this error.

WARNING: The returned string should not be consumed mechanically! It may change across platforms, hosts, or other implementation details. Parsing this string is a major platform-compatibility hazard.

async fn drop(&mut self, rep: Resource<Error>) -> Result<()>

Implementors