Struct sgx_tstd::panic::AssertUnwindSafe

pub struct AssertUnwindSafe<T>(pub T);

A simple wrapper around a type to assert that it is unwind safe.

When using catch_unwind it may be the case that some of the closed over variables are not unwind safe. For example if &mut T is captured the compiler will generate a warning indicating that it is not unwind safe. It may not be the case, however, that this is actually a problem due to the specific usage of catch_unwind if unwind safety is specifically taken into account. This wrapper struct is useful for a quick and lightweight annotation that a variable is indeed unwind safe.

Trait Implementations

impl<T: Debug> Debug for AssertUnwindSafe<T>

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

Formats the value using the given formatter.

impl<T> Deref for AssertUnwindSafe<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &T

Dereferences the value.

impl<T> DerefMut for AssertUnwindSafe<T>

fn deref_mut(&mut self) -> &mut T

Mutably dereferences the value.

impl<R, F: FnOnce() -> R> FnOnce() for AssertUnwindSafe<F>

type Output = R

The returned type after the call operator is used.

extern "rust-call" fn call_once(self, _args: ()) -> R

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

Performs the call operation.

impl<F: Future> Future for AssertUnwindSafe<F>

type Output = F::Output

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output>

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.

impl<T> RefUnwindSafe for AssertUnwindSafe<T>

impl<T> UnwindSafe for AssertUnwindSafe<T>