Struct wasmtime_wasi::preview2::I32Exit

pub struct I32Exit(pub i32);

An error returned from the proc_exit host syscall.

Embedders can test if an error returned from wasm is this error, in which case it may signal a non-fatal trap.

Tuple Fields

0: i32

Implementations

impl I32Exit

pub fn process_exit_code(&self) -> i32

Accessor for an exit code appropriate for calling std::process::exit with, when interpreting this I32Exit as an exit for the parent process.

This method masks off exit codes which are illegal on Windows.

Trait Implementations

impl Debug for I32Exit

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

Formats the value using the given formatter.

impl Display for I32Exit

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

Formats the value using the given formatter.

impl Error for I32Exit

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.