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.

String(String)

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

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