Struct BoolMapper 

pub struct BoolMapper<L: LookupMap> { /* private fields */ }

A Mapper for bool output values.

Toggle is implemented as logical negation (!v), since arithmetic on bool is not allowed in Rust.

Implementations

impl<L: LookupMap> BoolMapper<L>

pub fn new(map: L) -> Self

Creates a BoolMapper wrapping the given LookupMap.

Trait Implementations

impl<L: Clone + LookupMap> Clone for BoolMapper<L>

fn clone(&self) -> BoolMapper<L>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<L: Debug + LookupMap> Debug for BoolMapper<L>

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

Formats the value using the given formatter.

impl<L: LookupMap<Out = bool>> Mapper for BoolMapper<L>

type Map = L

The LookupMap used to decode individual characters.

fn map(&self) -> &L

Returns a reference to the underlying LookupMap.

fn toggle(&self, v: bool) -> bool

Returns the toggled counterpart of v.

fn low(&self) -> <Self::Map as LookupMap>::Out

The low (minimum) value; delegates to LookupMap::min.

fn high(&self) -> <Self::Map as LookupMap>::Out

The high (maximum) value; delegates to LookupMap::max.

fn value(&self, c: char) -> Option<<Self::Map as LookupMap>::Out>

Returns the concrete value for c, or None if c maps to Entry::Toggle or is unknown.

fn is_toggle(&self, c: char) -> bool

Returns true if c is a toggle character according to the LookupMap.

fn default(&self) -> <Self::Map as LookupMap>::Out

The value used when a line has no previous state; defaults to low.