Struct wasmi::Trap

pub struct Trap { /* fields omitted */ }

Error type which can be thrown by wasm code or by host environment.

Under some conditions, wasm execution may produce a Trap, which immediately aborts execution. Traps can’t be handled by WebAssembly code, but are reported to the embedder.

Implementations

impl Trap

pub fn new(kind: TrapKind) -> Trap

Create new trap.

pub fn kind(&self) -> &TrapKind

Returns kind of this trap.

Trait Implementations

impl Debug for Trap

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

Formats the value using the given formatter.

impl Display for Trap

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

Formats the value using the given formatter.

impl Error for Trap

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

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

pub fn backtrace(&self) -> Option<&Backtrace>

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

Returns a stack backtrace, if available, of where this error occurred.

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Trap> for Error

fn from(e: Trap) -> Error

Performs the conversion.

impl From<Trap> for ResumableError

fn from(trap: Trap) -> Self

Performs the conversion.

impl From<TrapKind> for Trap

fn from(e: TrapKind) -> Trap

Performs the conversion.

impl<U> From<U> for Trap where
    U: HostError + Sized, 

fn from(e: U) -> Self

Performs the conversion.