Struct core::ops::try_trait::NeverShortCircuit
source · #[repr(transparent)]pub(crate) struct NeverShortCircuit<T>(pub T);
Expand description
An adapter for implementing non-try methods via the Try
implementation.
Conceptually the same as Result<T, !>
, but requiring less work in trait
solving and inhabited-ness checking and such, by being an obvious newtype
and not having From
bounds lying around.
Not currently planned to be exposed publicly, so just pub(crate)
.
Tuple Fields§
§0: T
Implementations§
source§impl<T> NeverShortCircuit<T>
impl<T> NeverShortCircuit<T>
sourcepub fn wrap_mut_1<A>(
f: impl FnMut(A) -> T
) -> impl FnMut(A) -> NeverShortCircuit<T>
pub fn wrap_mut_1<A>( f: impl FnMut(A) -> T ) -> impl FnMut(A) -> NeverShortCircuit<T>
Wraps a unary function to produce one that wraps the output into a NeverShortCircuit
.
This is useful for implementing infallible functions in terms of the try_
ones,
without accidentally capturing extra generic parameters in a closure.
pub fn wrap_mut_2<A, B>(f: impl FnMut(A, B) -> T) -> impl FnMut(A, B) -> Self
Trait Implementations§
source§impl<T> FromResidual<<NeverShortCircuit<T> as Try>::Residual> for NeverShortCircuit<T>
impl<T> FromResidual<<NeverShortCircuit<T> as Try>::Residual> for NeverShortCircuit<T>
source§fn from_residual(never: NeverShortCircuitResidual) -> Self
fn from_residual(never: NeverShortCircuitResidual) -> Self
🔬This is a nightly-only experimental API. (
try_trait_v2
#84277)Constructs the type from a compatible
Residual
type. Read moresource§impl<T> Try for NeverShortCircuit<T>
impl<T> Try for NeverShortCircuit<T>
§type Output = T
type Output = T
🔬This is a nightly-only experimental API. (
try_trait_v2
#84277)The type of the value produced by
?
when not short-circuiting.§type Residual = NeverShortCircuitResidual
type Residual = NeverShortCircuitResidual
🔬This is a nightly-only experimental API. (
try_trait_v2
#84277)The type of the value passed to
FromResidual::from_residual
as part of ?
when short-circuiting. Read moresource§fn branch(self) -> ControlFlow<NeverShortCircuitResidual, T>
fn branch(self) -> ControlFlow<NeverShortCircuitResidual, T>
🔬This is a nightly-only experimental API. (
try_trait_v2
#84277)Used in
?
to decide whether the operator should produce a value
(because this returned ControlFlow::Continue
)
or propagate a value back to the caller
(because this returned ControlFlow::Break
). Read moresource§fn from_output(x: T) -> Self
fn from_output(x: T) -> Self
🔬This is a nightly-only experimental API. (
try_trait_v2
#84277)Constructs the type from its
Output
type. Read moreAuto Trait Implementations§
impl<T> Freeze for NeverShortCircuit<T>where T: Freeze,
impl<T> RefUnwindSafe for NeverShortCircuit<T>where T: RefUnwindSafe,
impl<T> Send for NeverShortCircuit<T>where T: Send,
impl<T> Sync for NeverShortCircuit<T>where T: Sync,
impl<T> Unpin for NeverShortCircuit<T>where T: Unpin,
impl<T> UnwindSafe for NeverShortCircuit<T>where T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more