solverforge-solver 0.11.1

Solver engine for SolverForge
Documentation 
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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148

use super::*;

#[derive(Clone, Debug)]
struct RepairSolution {
    left: Vec<Option<usize>>,
    right: Vec<Option<usize>>,
    score: Option<SoftScore>,
}

impl PlanningSolution for RepairSolution {
    type Score = SoftScore;

    fn score(&self) -> Option<Self::Score> {
        self.score
    }

    fn set_score(&mut self, score: Option<Self::Score>) {
        self.score = score;
    }
}

fn get_left(
    solution: &RepairSolution,
    entity_index: usize,
    _variable_index: usize,
) -> Option<usize> {
    solution.left[entity_index]
}

fn set_left(
    solution: &mut RepairSolution,
    entity_index: usize,
    _variable_index: usize,
    value: Option<usize>,
) {
    solution.left[entity_index] = value;
}

fn get_right(
    solution: &RepairSolution,
    entity_index: usize,
    _variable_index: usize,
) -> Option<usize> {
    solution.right[entity_index]
}

fn set_right(
    solution: &mut RepairSolution,
    entity_index: usize,
    _variable_index: usize,
    value: Option<usize>,
) {
    solution.right[entity_index] = value;
}

#[test]
fn conflict_repair_tabu_tokens_use_each_edit_scope() {
    let solution = RepairSolution {
        left: vec![Some(0)],
        right: vec![Some(1)],
        score: None,
    };
    let director = ScoreDirector::simple_zero(solution);
    let repair = ConflictRepairMove::new(
        "twoDescriptorRepair",
        vec![
            ConflictRepairScalarEdit {
                descriptor_index: 0,
                entity_index: 0,
                variable_index: 0,
                variable_name: "left",
                to_value: Some(2),
                getter: get_left,
                setter: set_left,
            },
            ConflictRepairScalarEdit {
                descriptor_index: 1,
                entity_index: 0,
                variable_index: 0,
                variable_name: "right",
                to_value: Some(3),
                getter: get_right,
                setter: set_right,
            },
        ],
    );

    let signature = repair.tabu_signature(&director);
    let left_scope = crate::heuristic::r#move::metadata::MoveTabuScope::new(0, "left");
    let right_scope = crate::heuristic::r#move::metadata::MoveTabuScope::new(1, "right");

    assert!(signature
        .entity_tokens
        .contains(&left_scope.entity_token(0)));
    assert!(signature
        .entity_tokens
        .contains(&right_scope.entity_token(0)));
    assert!(signature
        .destination_value_tokens
        .contains(&left_scope.value_token(2)));
    assert!(signature
        .destination_value_tokens
        .contains(&right_scope.value_token(3)));
    assert_eq!(signature.entity_tokens.len(), 2);
    assert_eq!(signature.destination_value_tokens.len(), 2);
}

#[test]
fn conflict_repair_affected_entities_keep_each_edit_scope() {
    let repair = ConflictRepairMove::<RepairSolution>::new(
        "twoDescriptorRepair",
        vec![
            ConflictRepairScalarEdit {
                descriptor_index: 0,
                entity_index: 4,
                variable_index: 0,
                variable_name: "left",
                to_value: Some(2),
                getter: get_left,
                setter: set_left,
            },
            ConflictRepairScalarEdit {
                descriptor_index: 1,
                entity_index: 7,
                variable_index: 0,
                variable_name: "right",
                to_value: Some(3),
                getter: get_right,
                setter: set_right,
            },
        ],
    );

    let mut affected = Vec::new();
    let mut collect_affected = |entity: MoveAffectedEntity<'_>| {
        affected.push((
            entity.descriptor_index,
            entity.variable_name.to_string(),
            entity.entity_index,
        ));
    };
    repair.for_each_affected_entity(&mut collect_affected);

    assert_eq!(
        affected,
        vec![(0, "left".to_string(), 4), (1, "right".to_string(), 7)]
    );
}