Trait SymbolIter

pub trait SymbolIter {
    type Item: Eq;
    type Iter<'a>: Iterator<Item = Self::Item>
       where Self: 'a;

    // Required methods
    fn symbol_count(&self) -> usize;
    fn symbol_iter(&self) -> Self::Iter<'_>;
}

helper trait for computing edit distances by iteration

Required Associated Types

type Item: Eq

the item type

type Iter<'a>: Iterator<Item = Self::Item> where Self: 'a

the iterator type

Required Methods

fn symbol_count(&self) -> usize

returns the length of the sequence

fn symbol_iter(&self) -> Self::Iter<'_>

returns an iterator for comparing characters for an edit distance. Since the computation may require multiple iterations, the returned iterator shouldn’t change length or sequence without self being mutated

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl SymbolIter for str

type Item = char

type Iter<'a> = Chars<'a> where Self: 'a

fn symbol_count(&self) -> usize

fn symbol_iter(&self) -> Self::Iter<'_>

impl SymbolIter for String

type Item = char

type Iter<'a> = Chars<'a> where Self: 'a

fn symbol_count(&self) -> usize

fn symbol_iter(&self) -> Self::Iter<'_>

impl<E: Copy + Eq> SymbolIter for [E]

type Item = E

type Iter<'a> = Copied<Iter<'a, E>> where Self: 'a

fn symbol_count(&self) -> usize

fn symbol_iter(&self) -> Self::Iter<'_>

impl<E: Copy + Eq> SymbolIter for Vec<E>

type Item = E

type Iter<'a> = Copied<Iter<'a, E>> where Self: 'a

fn symbol_count(&self) -> usize

fn symbol_iter(&self) -> Self::Iter<'_>

impl<E: Copy + Eq, const N: usize> SymbolIter for [E; N]

type Item = E

type Iter<'a> = Copied<Iter<'a, E>> where Self: 'a

fn symbol_count(&self) -> usize

fn symbol_iter(&self) -> Self::Iter<'_>

impl<T: ?Sized + SymbolIter> SymbolIter for &T

type Item = <T as SymbolIter>::Item

type Iter<'a> = <T as SymbolIter>::Iter<'a> where Self: 'a

fn symbol_count(&self) -> usize

fn symbol_iter(&self) -> Self::Iter<'_>

Implementors