Struct Head 

pub struct Head<S: Symbol> {
    pub state: State,
    pub symbol: S,
}

Head is the first part of crate::instruction::Instruction and is used as a container for the State and the Symbol.

Head fields doesn’t needs in control or protection so they are public.

Fields

state: State

State which is a wrapper around usize. It’s very hard (impossible) to reach the limit manually.

symbol: S

Any struct or object which implements Symbol trait.

Implementations

impl<S: Symbol> Head<S>

pub fn new(state: State, symbol: S) -> Self

Constructs a new Head with the State and the Symbol.

Trait Implementations

impl<S: Clone + Symbol> Clone for Head<S>

fn clone(&self) -> Head<S>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S: Debug + Symbol> Debug for Head<S>

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

Formats the value using the given formatter.

impl<S: Symbol> Display for Head<S>

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

Formats the value using the given formatter.

impl<S: PartialEq + Symbol> PartialEq for Head<S>

fn eq(&self, other: &Head<S>) -> 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<S: Eq + Symbol> Eq for Head<S>

impl<S: Symbol> StructuralPartialEq for Head<S>