Struct Impossible 

pub struct Impossible<B: Api + ?Sized>(/* private fields */);

Impossible type with board parameter.

This type is useful when the type parameter B needs to be mentioned in an enum. This type can be destructed by calling its unreachable method.

Implementations

impl<B: Api + ?Sized> Impossible<B>

pub fn unreachable(&self) -> !

Provides a static proof of dead code.

Trait Implementations

impl<B: Api + ?Sized> Clone for Impossible<B>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<B: Api + ?Sized> Debug for Impossible<B>

fn fmt(&self, __f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<B: Api + ?Sized> Hash for Impossible<B>

fn hash<__H: Hasher>(&self, __state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<B: Api + ?Sized> Ord for Impossible<B>

fn cmp(&self, __other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<B: Api + ?Sized> PartialEq for Impossible<B>

fn eq(&self, __other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<B: Api + ?Sized> PartialOrd for Impossible<B>

fn partial_cmp(&self, __other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<B: Api + ?Sized> Copy for Impossible<B>

impl<B: Api + ?Sized> Eq for Impossible<B>