Struct frame_system::EnsureNever
source · pub struct EnsureNever<Success>(/* private fields */);
Expand description
Always fail.
Trait Implementations§
source§impl<O, Success> EnsureOrigin<O> for EnsureNever<Success>
impl<O, Success> EnsureOrigin<O> for EnsureNever<Success>
source§impl<O, Success, T> EnsureOriginWithArg<O, T> for EnsureNever<Success>
impl<O, Success, T> EnsureOriginWithArg<O, T> for EnsureNever<Success>
§type Success = <EnsureNever<Success> as EnsureOrigin<O>>::Success
type Success = <EnsureNever<Success> as EnsureOrigin<O>>::Success
A return type.
Auto Trait Implementations§
impl<Success> Freeze for EnsureNever<Success>
impl<Success> RefUnwindSafe for EnsureNever<Success>where
Success: RefUnwindSafe,
impl<Success> Send for EnsureNever<Success>where
Success: Send,
impl<Success> Sync for EnsureNever<Success>where
Success: Sync,
impl<Success> Unpin for EnsureNever<Success>where
Success: Unpin,
impl<Success> UnwindSafe for EnsureNever<Success>where
Success: 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
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 T
impl<T, Outer> IsWrappedBy<Outer> 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<T, U> TryIntoKey<U> for Twhere
U: TryFromKey<T>,
impl<T, U> TryIntoKey<U> for Twhere
U: TryFromKey<T>,
type Error = <U as TryFromKey<T>>::Error
fn try_into_key(self) -> Result<U, <U as TryFromKey<T>>::Error>
source§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 S
impl<T, S> UniqueSaturatedInto<T> for S
source§fn unique_saturated_into(self) -> T
fn unique_saturated_into(self) -> T
Consume self to return an equivalent value of
T
.