Struct wasmtime::Trap

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pub struct Trap { /* private fields */ }

Expand description

A struct representing an aborted instruction execution, with a message indicating the cause.

Implementations

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impl Trap

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pub fn new<I: Into<String>>(message: I) -> Self

Creates a new Trap with message.

Example

let trap = wasmtime::Trap::new("unexpected error");
assert!(trap.to_string().contains("unexpected error"));

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pub fn i32_exit(status: i32) -> Self

Creates a new Trap representing an explicit program exit with a classic i32 exit status value.

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pub fn i32_exit_status(&self) -> Option<i32>

If the trap was the result of an explicit program exit with a classic i32 exit status value, return the value, otherwise return None.

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pub fn trace(&self) -> &[FrameInfo ]

Returns a list of function frames in WebAssembly code that led to this trap happening.

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pub fn trap_code(&self) -> Option<TrapCode>

Code of a trap that happened while executing a WASM instruction. If the trap was triggered by a host export this will be None.

Trait Implementations

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impl Clone for Trap

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fn clone(&self) -> Trap

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for Trap

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

Formats the value using the given formatter. Read more

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impl Display for Trap

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

Formats the value using the given formatter. Read more

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impl Error for Trap

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

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

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

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

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

1.0.0 · source

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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impl From<Box<dyn Error + Send + Sync + 'static, Global>> for Trap

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fn from(e: Box<dyn Error + Send + Sync>) -> Trap

Performs the conversion.

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impl From<Error> for Trap

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fn from(e: Error) -> Trap

Performs the conversion.

Auto Trait Implementations

impl !RefUnwindSafe for Trap

impl Send for Trap

impl Sync for Trap

impl Unpin for Trap

impl !UnwindSafe for Trap

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> Pointable for T

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pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

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pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

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pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T> ToString for T where
T: Display + ?Sized,

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pub default fn to_string(&self) -> String

Converts the given value to a String. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Struct wasmtime::Trap

Implementations

impl Trap

pub fn new<I: Into<String>>(message: I) -> Self

pub fn i32_exit(status: i32) -> Self

pub fn i32_exit_status(&self) -> Option<i32>

pub fn trace(&self) -> &[FrameInfo]

pub fn trap_code(&self) -> Option<TrapCode>

Trait Implementations

impl Clone for Trap

fn clone(&self) -> Trap

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

impl Debug for Trap

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

impl Display for Trap

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

impl Error for Trap

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

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

fn description(&self) -> &str

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

impl From<Box<dyn Error + Send + Sync + 'static, Global>> for Trap

fn from(e: Box<dyn Error + Send + Sync>) -> Trap

impl From<Error> for Trap

fn from(e: Error) -> Trap

Auto Trait Implementations

impl !RefUnwindSafe for Trap

impl Send for Trap

impl Sync for Trap

impl Unpin for Trap

impl !UnwindSafe for Trap

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T> Same<T> for T

type Output = T

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T> ToString for T where T: Display + ?Sized,

pub default fn to_string(&self) -> String

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

pub fn trace(&self) -> &[FrameInfo ]

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T> ToString for T where
T: Display + ?Sized,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,