Enum wiggle::Trap

pub enum Trap {
    I32Exit(i32),
    String(String),
}

A runtime-independent way for Wiggle to terminate WebAssembly execution. Functions that are marked (@witx noreturn) will always return a Trap. Other functions that want to Trap can do so via their UserErrorConversion trait, which transforms the user’s own error type into a Result<abierror, Trap>.

Variants

I32Exit(i32)

A Trap which indicates an i32 (posix-style) exit code. Runtimes may have a special way of dealing with this for WASI embeddings and otherwise.

Tuple Fields of I32Exit

0: i32

String(String)

Any other Trap is just an unstructured String, for reporting and debugging.

Tuple Fields of String

0: String

Trait Implementations

impl Clone for Trap

fn clone(&self) -> Trap

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Trap

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

Formats the value using the given formatter.

impl From<GuestError> for Trap

fn from(err: GuestError) -> Trap

Performs the conversion.

impl PartialEq<Trap> for Trap

fn eq(&self, other: &Trap) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Trap) -> bool

This method tests for !=.

impl Eq for Trap

impl StructuralEq for Trap

impl StructuralPartialEq for Trap