Trait aho_corasick::Transitions
[−]
[src]
pub trait Transitions {
fn new(depth: u32) -> Self;
fn goto(&self, alpha: u8) -> StateIdx;
fn set_goto(&mut self, alpha: u8, si: StateIdx);
fn heap_bytes(&self) -> usize;
}An abstraction over state transition strategies.
This is an attempt to let the caller choose the space/time trade offs used for state transitions.
(It's possible that this interface is merely good enough for just the two implementations in this crate.)
Required Methods
fn new(depth: u32) -> Self
Return a new state at the given depth.
fn goto(&self, alpha: u8) -> StateIdx
Return the next state index given the next character.
fn set_goto(&mut self, alpha: u8, si: StateIdx)
Set the next state index for the character given.
fn heap_bytes(&self) -> usize
The memory use in bytes (on the heap) of this set of transitions.