Trait rustfst::fst_traits::AllocableFst

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pub trait AllocableFst<W: Semiring>: Fst<W> {
    // Required methods
    fn reserve_trs(&mut self, source: StateId, additional: usize) -> Result<()>;
    unsafe fn reserve_trs_unchecked(
        &mut self,
        state: StateId,
        additional: usize
    );
    fn reserve_states(&mut self, additional: usize);
    fn shrink_to_fit(&mut self);
    fn shrink_to_fit_states(&mut self);
    fn shrink_to_fit_trs(&mut self, source: StateId) -> Result<()>;
    unsafe fn shrink_to_fit_trs_unchecked(&mut self, state: StateId);
    fn states_capacity(&self) -> usize;
    fn trs_capacity(&self, source: StateId) -> Result<usize>;
    unsafe fn trs_capacity_unchecked(&self, state: StateId) -> usize;
}

Expand description

Trait defining the methods to control allocation for a wFST

Required Methods§

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fn reserve_trs(&mut self, source: StateId, additional: usize) -> Result<()>

Reserve capacity for at least additional more trs leaving the state. The FST may reserve more space to avoid frequent allocation. After calling reserve_trs, the capacity will be greater or equal to num_trs + additionnal This method has no effects if the capacity is already sufficient

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unsafe fn reserve_trs_unchecked(&mut self, state: StateId, additional: usize)

§Safety

Unsafe behaviour if state is not present in Fst.

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fn reserve_states(&mut self, additional: usize)

Reserve capacity for at least additional states. The FST may reserve more space to avoid frequent allocation. After calling reserve_states, the capacity will be greater or equal to num_states + additionnal This method has no effects if the capacity is already sufficient

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fn shrink_to_fit(&mut self)

Shrinks the capacity of the states and their leaving trs as much as possible. It will drop down as close as possible to the number of states and leaving trs.

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