Enum frame_support::traits::SameOrOther
source · pub enum SameOrOther<A, B> {
None,
Same(A),
Other(B),
}
Expand description
Return type used when we need to return one of two items, each of the opposite direction or
sign, with one (Same
) being of the same type as the self
or primary argument of the function
that returned it.
Variants§
None
No item.
Same(A)
An item of the same type as the Self
on which the return function was called.
Other(B)
An item of the opposite type to the Self
on which the return function was called.
Implementations§
source§impl<A, B> SameOrOther<A, B>
impl<A, B> SameOrOther<A, B>
sourcepub fn try_same(self) -> Result<A, Self>
pub fn try_same(self) -> Result<A, Self>
Returns Ok
with the inner value of Same
if self
is that, otherwise returns Err
with
self
.
sourcepub fn try_other(self) -> Result<B, Self>
pub fn try_other(self) -> Result<B, Self>
Returns Ok
with the inner value of Other
if self
is that, otherwise returns Err
with
self
.
sourcepub fn try_none(self) -> Result<(), Self>
pub fn try_none(self) -> Result<(), Self>
Returns Ok
if self
is None
, otherwise returns Err
with self
.
pub fn same(self) -> Result<A, B>where A: Default,
pub fn other(self) -> Result<B, A>where B: Default,
Trait Implementations§
Auto Trait Implementations§
impl<A, B> RefUnwindSafe for SameOrOther<A, B>where A: RefUnwindSafe, B: RefUnwindSafe,
impl<A, B> Send for SameOrOther<A, B>where A: Send, B: Send,
impl<A, B> Sync for SameOrOther<A, B>where A: Sync, B: Sync,
impl<A, B> Unpin for SameOrOther<A, B>where A: Unpin, B: Unpin,
impl<A, B> UnwindSafe for SameOrOther<A, B>where A: UnwindSafe, B: UnwindSafe,
Blanket Implementations§
source§impl<T> CheckedConversion for T
impl<T> CheckedConversion for T
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<T, Outer> IsWrappedBy<Outer> for Twhere
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,
impl<T, Outer> IsWrappedBy<Outer> for Twhere Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,
§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<T> SaturatedConversion for T
impl<T> SaturatedConversion for T
source§fn saturated_from<T>(t: T) -> Selfwhere
Self: UniqueSaturatedFrom<T>,
fn saturated_from<T>(t: T) -> Selfwhere Self: UniqueSaturatedFrom<T>,
source§fn saturated_into<T>(self) -> Twhere
Self: UniqueSaturatedInto<T>,
fn saturated_into<T>(self) -> Twhere Self: UniqueSaturatedInto<T>,
Consume self to return an equivalent value of
T
. Read moresource§impl<S, T> UncheckedInto<T> for Swhere
T: UncheckedFrom<S>,
impl<S, T> UncheckedInto<T> for Swhere T: UncheckedFrom<S>,
source§fn unchecked_into(self) -> T
fn unchecked_into(self) -> T
The counterpart to
unchecked_from
.source§impl<T, S> UniqueSaturatedInto<T> for Swhere
T: Bounded,
S: TryInto<T>,
impl<T, S> UniqueSaturatedInto<T> for Swhere T: Bounded, S: TryInto<T>,
source§fn unique_saturated_into(self) -> T
fn unique_saturated_into(self) -> T
Consume self to return an equivalent value of
T
.