LocalSearchPhase

solverforge_solver::phase::localsearch

Struct LocalSearchPhase 

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pub struct LocalSearchPhase<S, M, MS, A, Fo>
where
    S: PlanningSolution,
    M: Move<S>,
    MS: MoveSelector<S, M>,
    A: Acceptor<S>,
    Fo: LocalSearchForager<S, M>,
{ /* private fields */ }
Expand description

Local search phase that improves an existing solution.

This phase iteratively:

  1. Generates candidate moves into an arena
  2. Evaluates each move by index
  3. Accepts/rejects based on the acceptor
  4. Takes ownership of the best accepted move from arena

§Type Parameters

  • S - The planning solution type
  • M - The move type
  • MS - The move selector type
  • A - The acceptor type
  • Fo - The forager type

§Zero-Clone Design

Uses index-based foraging. The forager stores (usize, Score) pairs. When a move is selected, ownership transfers via arena.take(index). Moves are NEVER cloned.

Implementations§

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impl<S, M, MS, A, Fo> LocalSearchPhase<S, M, MS, A, Fo>
where S: PlanningSolution, M: Move<S> + 'static, MS: MoveSelector<S, M>, A: Acceptor<S>, Fo: LocalSearchForager<S, M>,

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pub fn new( move_selector: MS, acceptor: A, forager: Fo, step_limit: Option<u64>, ) -> Self

Creates a new local search phase.

Trait Implementations§

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impl<S, M, MS, A, Fo> Debug for LocalSearchPhase<S, M, MS, A, Fo>
where S: PlanningSolution, M: Move<S>, MS: MoveSelector<S, M> + Debug, A: Acceptor<S> + Debug, Fo: LocalSearchForager<S, M> + Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<S, D, M, MS, A, Fo> Phase<S, D> for LocalSearchPhase<S, M, MS, A, Fo>
where S: PlanningSolution, D: ScoreDirector<S>, M: Move<S>, MS: MoveSelector<S, M>, A: Acceptor<S>, Fo: LocalSearchForager<S, M>,

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fn solve(&mut self, solver_scope: &mut SolverScope<'_, S, D>)

Executes this phase. Read more
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fn phase_type_name(&self) -> &'static str

Returns the name of this phase type.

Auto Trait Implementations§

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impl<S, M, MS, A, Fo> Freeze for LocalSearchPhase<S, M, MS, A, Fo>
where MS: Freeze, A: Freeze, Fo: Freeze,

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impl<S, M, MS, A, Fo> RefUnwindSafe for LocalSearchPhase<S, M, MS, A, Fo>
where MS: RefUnwindSafe, A: RefUnwindSafe, Fo: RefUnwindSafe, M: RefUnwindSafe,

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impl<S, M, MS, A, Fo> Send for LocalSearchPhase<S, M, MS, A, Fo>

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impl<S, M, MS, A, Fo> Sync for LocalSearchPhase<S, M, MS, A, Fo>
where MS: Sync, A: Sync, Fo: Sync,

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impl<S, M, MS, A, Fo> Unpin for LocalSearchPhase<S, M, MS, A, Fo>
where MS: Unpin, A: Unpin, Fo: Unpin, M: Unpin,

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impl<S, M, MS, A, Fo> UnwindSafe for LocalSearchPhase<S, M, MS, A, Fo>
where MS: UnwindSafe, A: UnwindSafe, Fo: UnwindSafe, M: UnwindSafe,

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impl<T> Any for T
where T: 'static + ?Sized,

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fn from(t: T) -> T

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const ALIGN: usize

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type Init = T

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