xcsp3_rust/constraints/
xall_equal.rs

1/*=============================================================================
2* parser for CSP instances represented in XCSP3 Format
3*
4* Copyright (c) 2023 xcsp.org (contact @ xcsp.org)
5*
6* Permission is hereby granted, free of charge, to any person obtaining a copy
7* of this software and associated documentation files (the "Software"), to deal
8* in the Software without restriction, including without limitation the rights
9* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10* copies of the Software, and to permit persons to whom the Software is
11* furnished to do so, subject to the following conditions:
12*
13* The above copyright notice and this permission notice shall be included in
14* all copies or substantial portions of the Software.
15*
16* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22* THE SOFTWARE.
23*=============================================================================
24*/
25
26/*
27* <p>@project_name: xcsp3-rust
28* </p>
29* <p>@author: luhan zhen
30* </p>
31* <p>@date:  2023/7/15 14:34
32* </p>
33* <p>@email: zhenlh20@mails.jlu.edu.cn
34* </p>
35* <p>@version: 1.0
36* </p>
37 * <p>@description: 1.0
38* </p>
39 */
40
41pub mod xcsp3_core {
42    use crate::constraints::xconstraint_trait::xcsp3_core::XConstraintTrait;
43    use crate::data_structs::xint_val_var::xcsp3_core::XVarVal;
44    use crate::errors::xcsp3error::xcsp3_core::Xcsp3Error;
45    use std::collections::HashMap;
46    use std::fmt::{Display, Formatter};
47
48    use crate::utils::utils_functions::xcsp3_utils::list_to_vec_var_val;
49    use crate::variables::xdomain::xcsp3_core::XDomainInteger;
50    use crate::variables::xvariable_set::xcsp3_core::XVariableSet;
51
52    // #[derive(Clone)]
53    pub struct XAllEqual<'a> {
54        scope: Vec<XVarVal>,
55        map: HashMap<String, &'a XDomainInteger>,
56        set: &'a XVariableSet,
57    }
58
59    impl Display for XAllEqual<'_> {
60        fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
61            let mut ret = String::default();
62            for e in self.scope.iter() {
63                ret.push('(');
64                ret.push_str(&e.to_string());
65                ret.push_str("), ")
66            }
67            write!(f, "XAllEqual: list =  {}", ret)
68        }
69    }
70
71    impl XConstraintTrait for XAllEqual<'_> {
72        fn get_scope_string(&self) -> &Vec<XVarVal> {
73            &self.scope
74        }
75
76        fn get_scope(&mut self) -> Vec<(&String, &XDomainInteger)> {
77            for e in &self.scope {
78                if let XVarVal::IntVar(s) = e {
79                    if !self.map.contains_key(s) {
80                        if let Ok(vec) = self.set.construct_scope(&[s]) {
81                            for (vs, vv) in vec.into_iter() {
82                                self.map.insert(vs, vv);
83                            }
84                        }
85                    }
86                }
87            }
88            let mut scope_vec_var: Vec<(&String, &XDomainInteger)> = vec![];
89            for e in self.map.iter() {
90                scope_vec_var.push((e.0, e.1))
91            }
92            scope_vec_var
93        }
94    }
95
96    impl<'a> XAllEqual<'a> {
97        pub fn from_str(list: &str, set: &'a XVariableSet) -> Result<Self, Xcsp3Error> {
98            match list_to_vec_var_val(list) {
99                Ok(scope_vec_str) => Ok(XAllEqual::new(scope_vec_str, set)),
100                Err(e) => Err(e),
101            }
102        }
103        pub fn new(scope: Vec<XVarVal>, set: &'a XVariableSet) -> Self {
104            XAllEqual {
105                scope,
106                map: Default::default(),
107                set,
108            }
109        }
110    }
111}
xcsp3_rust/constraints/xall_equal.rs

xcsp3_rust/constraints/
xall_equal.rs
