[−][src]Struct core::option::NoneError  
The error type that results from applying the try operator (?) to a None value. If you wish
to allow x? (where x is an Option<T>) to be converted into your error type, you can
implement impl From<NoneError> for YourErrorType. In that case, x? within a function that
returns Result<_, YourErrorType> will translate a None value into an Err result.
Trait Implementations
impl Clone for NoneError[src] 
impl Clone for NoneErrorfn clone(&self) -> NoneError[src] 
fn clone(&self) -> NoneErrorReturns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src] 
fn clone_from(&mut self, source: &Self)Performs copy-assignment from source. Read more
impl Copy for NoneError[src] 
impl Copy for NoneErrorimpl PartialEq for NoneError[src] 
impl PartialEq for NoneErrorfn eq(&self, other: &NoneError) -> bool[src] 
fn eq(&self, other: &NoneError) -> boolThis method tests for self and other values to be equal, and is used by ==. Read more
#[must_use]
fn ne(&self, other: &Rhs) -> bool1.0.0[src] 
#[must_use]
fn ne(&self, other: &Rhs) -> boolThis method tests for !=.
impl PartialOrd for NoneError[src] 
impl PartialOrd for NoneErrorfn partial_cmp(&self, other: &NoneError) -> Option<Ordering>[src] 
fn partial_cmp(&self, other: &NoneError) -> Option<Ordering>This method returns an ordering between self and other values if one exists. Read more
#[must_use]
fn lt(&self, other: &Rhs) -> bool1.0.0[src] 
#[must_use]
fn lt(&self, other: &Rhs) -> boolThis method tests less than (for self and other) and is used by the < operator. Read more
#[must_use]
fn le(&self, other: &Rhs) -> bool1.0.0[src] 
#[must_use]
fn le(&self, other: &Rhs) -> boolThis method tests less than or equal to (for self and other) and is used by the <= operator. Read more
#[must_use]
fn gt(&self, other: &Rhs) -> bool1.0.0[src] 
#[must_use]
fn gt(&self, other: &Rhs) -> boolThis method tests greater than (for self and other) and is used by the > operator. Read more
#[must_use]
fn ge(&self, other: &Rhs) -> bool1.0.0[src] 
#[must_use]
fn ge(&self, other: &Rhs) -> boolThis method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
impl Eq for NoneError[src] 
impl Eq for NoneErrorimpl Ord for NoneError[src] 
impl Ord for NoneErrorfn cmp(&self, other: &NoneError) -> Ordering[src] 
fn cmp(&self, other: &NoneError) -> OrderingThis method returns an Ordering between self and other. Read more
fn max(self, other: Self) -> Self where
    Self: Sized, 1.21.0[src] 
fn max(self, other: Self) -> Self where
    Self: Sized, Compares and returns the maximum of two values. Read more
fn min(self, other: Self) -> Self where
    Self: Sized, 1.21.0[src] 
fn min(self, other: Self) -> Self where
    Self: Sized, Compares and returns the minimum of two values. Read more
impl Debug for NoneError[src] 
impl Debug for NoneErrorfn fmt(&self, f: &mut Formatter) -> Result[src] 
fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl Hash for NoneError[src] 
impl Hash for NoneErrorAuto Trait Implementations
Blanket Implementations
impl<T, U> Into for T where
    U: From<T>, [src] 
impl<T, U> Into for T where
    U: From<T>, impl<T> From for T[src] 
impl<T> From for Timpl<T, U> TryInto for T where
    U: TryFrom<T>, [src] 
impl<T, U> TryInto for T where
    U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(Self) -> Result<U, <U as TryFrom<T>>::Error>[src] 
fn try_into(Self) -> Result<U, <U as TryFrom<T>>::Error>Performs the conversion.
impl<T, U> TryFrom for T where
    T: From<U>, [src] 
impl<T, U> TryFrom for T where
    T: From<U>, type Error = !
The type returned in the event of a conversion error.
fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>[src] 
fn try_from(U) -> Result<T, <T as TryFrom<U>>::Error>Performs the conversion.
impl<T> Borrow for T where
    T: ?Sized, [src] 
impl<T> Borrow for T where
    T: ?Sized, impl<T> BorrowMut for T where
    T: ?Sized, [src] 
impl<T> BorrowMut for T where
    T: ?Sized, fn borrow_mut(&mut Self) -> &mut T[src] 
fn borrow_mut(&mut Self) -> &mut TMutably borrows from an owned value. Read more
impl<T> Any for T where
    T: 'static + ?Sized, [src] 
impl<T> Any for T where
    T: 'static + ?Sized, fn get_type_id(&Self) -> TypeId[src] 
fn get_type_id(&Self) -> TypeId🔬 This is a nightly-only experimental API.  (get_type_id #27745)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more