Trait Step

pub trait Step: LSend {
    // Required method
    fn step(
        &self,
        tokens: &[Token],
        cursor: usize,
        source: &[char],
    ) -> Option<isize>;
}

An atomic step within a larger expression.

Its principle job is to identify (if any) the next position of the cursor. When cursor is moved, all tokens between the current cursor and the target position will be added to the match group.

Required Methods

fn step( &self, tokens: &[Token], cursor: usize, source: &[char], ) -> Option<isize>

Implementors

impl Step for AnchorEnd

impl Step for AnchorStart

impl<E: Expr, S: Step> Step for UnlessStep<E, S>

impl<P> Step for P

where P: Pattern,