refacto: remove pub attribute in VarMatches fields

boreal/src/evaluator/variable.rs

@@ -10,12 +10,17 @@ pub(crate) struct VarMatches<'a> {
     /// Matches per variable.
     ///
     /// This uses the same order as the variables vec in the scanner object.
-    pub(crate) matches: &'a [Vec<Match>],
+    matches: &'a [Vec<Match>],
 }
 
 type Match = std::ops::Range<usize>;
 
-impl VarMatches<'_> {
+impl<'a> VarMatches<'a> {
+    /// Create a new `VarMatches` object from a list of variable matches.
+    pub fn new(matches: &'a [Vec<Match>]) -> Self {
+        Self { matches }
+    }
+
     /// Return true if the variable can be found in the scanned memory.
     pub fn find(&self, var_index: usize) -> bool {
         !self.matches[var_index].is_empty()

boreal/src/scanner/mod.rs

@@ -347,9 +347,7 @@ impl Inner {
             let var_matches = collect_nb_elems(&mut ac_matches_iter, rule.nb_variables);
             let res = match evaluate_rule(
                 rule,
-                Some(VarMatches {
-                    matches: &var_matches,
-                }),
+                Some(VarMatches::new(&var_matches)),
                 &mut scan_data,
                 &previous_results,
             ) {