Trait parser_combinators::primitives::Positioner [−] [src]

pub trait Positioner: Clone + PartialEq {
    type Position: Clone + Ord;
    fn start() -> Self::Position;
    fn update(&self, position: &mut Self::Position);
}

Positioner represents the operations needed to update a position given an item from the stream When implementing stream for custom token type this must be implemented for that token to allow the position to be updated

Associated Types

`type Position: Clone + Ord`

Required Methods

`fn start() -> Self::Position`

Creates a start position

`fn update(&self, position: &mut Self::Position)`

Updates the position given that self has been taken from the stream

Implementors

impl<'a, T> Positioner for &'a T where T: Positioner,
impl Positioner for char
impl Positioner for u8