pub struct Trap { /* fields omitted */ }
Expand description
A struct representing an aborted instruction execution, with a message
indicating the cause.
Creates a new Trap
with message
.
let trap = wasmtime::Trap::new("unexpected error");
assert!(trap.to_string().contains("unexpected error"));
Creates a new Trap
representing an explicit program exit with a classic i32
exit status value.
If the trap was the result of an explicit program exit with a classic
i32
exit status value, return the value, otherwise return None
.
Displays the error reason for this trap.
In particular, it differs from this struct’s Display
by only
showing the reason, and not the full backtrace. This is useful to
customize the way the trap is reported, for instance to display a short
message for user-facing errors.
Returns a list of function frames in WebAssembly code that led to this
trap happening.
Code of a trap that happened while executing a WASM instruction.
If the trap was triggered by a host export this will be None
.
Performs copy-assignment from source
. Read more
Formats the value using the given formatter. Read more
Formats the value using the given formatter. Read more
The lower-level source of this error, if any. Read more
🔬 This is a nightly-only experimental API. (backtrace
)
Returns a stack backtrace, if available, of where this error occurred. Read more
👎 Deprecated since 1.42.0:
use the Display impl or to_string()
👎 Deprecated since 1.33.0:
replaced by Error::source, which can support downcasting
impl<T> Any for T where
T: 'static + ?Sized,
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
impl<T, U> Into<U> for T where
U: From<T>,
The alignment of pointer.
The type for initializers.
Initializes a with the given initializer. Read more
Mutably dereferences the given pointer. Read more
Drops the object pointed to by the given pointer. Read more
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String
. Read more
The type returned in the event of a conversion error.
The type returned in the event of a conversion error.