mop-facades 0.0.6

Facades for MOP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

use crate::{initial_solutions::InitialSolutions, opt_problem::*};
use core::{default::Default, marker::PhantomData};

#[derive(Clone, Debug, Default)]
pub struct UserInitialSolutions<F, S>
where
    F: FnMut(usize) -> S,
{
    cb: F,
    phantom: PhantomData<S>,
}

impl<F, S> UserInitialSolutions<F, S>
where
    F: FnMut(usize) -> S,
{
    pub fn new(cb: F) -> Self {
        UserInitialSolutions {
            cb,
            phantom: PhantomData,
        }
    }
}

impl<C, D, F, O, OR, S> InitialSolutions<OptProblem<C, D, O, OR, S>> for UserInitialSolutions<F, S>
where
    F: FnMut(usize) -> S,
    OR: Default,
    S: Solution,
{
    fn initial_solutions(&mut self, op: &mut OptProblem<C, D, O, OR, S>) {
        let (defs, results) = op.parts_mut();
        for idx in 0..defs.results_num() {
            let mut c = results.constructor();
            c = (0..defs.hard_cstrs().len()).fold(c, |c, _| c.push_hard_cstr(usize::default()));
            c = (0..defs.objs().len()).fold(c, |c, _| c.push_obj(OR::default()));
            c.commit(OR::default(), (self.cb)(idx));
        }
    }
}