Builder first iteration: bool constraints

examples/simple_sat_program.rs

@@ -1,40 +1,19 @@
-use cp_sat::proto::{
-    constraint_proto::Constraint, AllDifferentConstraintProto, ConstraintProto, CpModelProto,
-    IntegerVariableProto,
-};
-
 fn main() {
-    let model = CpModelProto {
-        variables: vec![
-            IntegerVariableProto {
-                name: "x".into(),
-                domain: vec![0, 2],
-            },
-            IntegerVariableProto {
-                name: "y".into(),
-                domain: vec![0, 2],
-            },
-            IntegerVariableProto {
-                name: "z".into(),
-                domain: vec![0, 2],
-            },
-        ],
-        constraints: vec![ConstraintProto {
-            constraint: Some(Constraint::AllDiff(AllDifferentConstraintProto {
-                vars: vec![0, 1, 2],
-            })),
-            ..Default::default()
-        }],
-        ..Default::default()
-    };
+    let mut model = cp_sat::builder::CpModelBuilder::default();
+    let x = model.new_int_var_with_name([(0, 2)], "x");
+    let y = model.new_int_var_with_name([(0, 2)], "y");
+    let z = model.new_int_var_with_name([(0, 2)], "z");
+    model.add_all_different([x, y, z]);
     println!("{:#?}", model);
-
-    println!("model stats: {}", cp_sat::cp_model_stats(&model));
-
-    let response = cp_sat::solve(&model);
+    println!("model stats: {}", model.stats());
+    let response = model.solve();
     println!("{:#?}", response);
     println!(
         "response stats: {}",
         cp_sat::cp_solver_response_stats(&response, false)
     );
+    assert_eq!(response.status(), cp_sat::proto::CpSolverStatus::Optimal);
+    assert!(x.solution_value(&response) != y.solution_value(&response));
+    assert!(x.solution_value(&response) != z.solution_value(&response));
+    assert!(y.solution_value(&response) != z.solution_value(&response));
 }