Enum wasmtime_runtime::Trap

pub enum Trap {
    User(Box<dyn Error + Send + Sync>),
    Wasm {
        desc: TrapDescription,
        backtrace: Backtrace,
    },
}

Stores trace message with backtrace.

Variants

User(Box<dyn Error + Send + Sync>)

A user-raised trap through raise_user_trap.

Wasm

A wasm-originating trap from wasm code itself.

Fields of Wasm

desc: TrapDescription

What sort of trap happened, as well as where in the original wasm module it happened.

backtrace: Backtrace

Native stack backtrace at the time the trap occurred

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

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

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

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

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

fn description(&self) -> &str

Deprecated since 1.41.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting