Struct Nil 

pub struct Nil;

Empty stack, containing no elements

Trait Implementations

impl Clone for Nil

fn clone(&self) -> Nil

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Nil

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

Formats the value using the given formatter.

impl Stack for Nil

type Remaining = Nil

Stack containing elements that do not include the top element of the stack

type Head = ()

Top element of the stack

fn pop(self) -> (Self::Remaining, Self::Head)

Returns a tuple of the top item in the stack and the rest of the stack

fn push<H>(self, head: H) -> Cons<Self, H>

where Self: Sized,

Returns Cons with items pushed to the stack

fn map<F: FnOnce(&Self::Head) -> O, O>(&self, f: F) -> O

Returns the result of applying the callback function to the top element of the stack

fn map_remaining<F: FnOnce(&Self::Remaining) -> O, O>(&self, f: F) -> O

Returns the result of applying the callback to a stack that does not contain the top element of the stack

fn take_map<F: FnOnce(Self::Head) -> Result<(Self::Head, O), E>, O, E>( self, f: F, ) -> Result<(Self, O), E>

where Self: Sized,

Returns the result of taking ownership of the first element of the stack and applying the callback function.

fn map_mut<F: FnOnce(&mut Self::Head) -> O, O>(&mut self, f: F) -> O

Pass a mutable reference to the top element of the stack to the callback function and return the result of executing it