Simplify initialization of fileName member of Rule instances

headers/modsecurity/rule.h

@@ -64,8 +64,8 @@ using MatchActions = std::vector<actions::Action *>;
 
 class Rule {
  public:
-    Rule(std::unique_ptr<std::string> fileName, int lineNumber)
-        : m_fileName(*fileName),
+    Rule(const std::string &fileName, int lineNumber)
+        : m_fileName(fileName),
         m_lineNumber(lineNumber),
         m_phase(modsecurity::Phases::RequestHeadersPhase) {
         }

headers/modsecurity/rule_marker.h

@@ -33,9 +33,9 @@ class RuleMarker : public Rule {
  public:
     RuleMarker(
         const std::string &name,
-        std::unique_ptr<std::string> fileName,
+        const std::string &fileName,
         int lineNumber)
-        : Rule(std::move(fileName), lineNumber),
+        : Rule(fileName, lineNumber),
         m_name(name) { }
 
     RuleMarker(const RuleMarker &r) = delete;

headers/modsecurity/rule_with_actions.h

@@ -40,7 +40,7 @@ class RuleWithActions : public Rule {
     RuleWithActions(
         Actions *a,
         Transformations *t,
-        std::unique_ptr<std::string> fileName,
+        const std::string &fileName,
         int lineNumber);
 
     ~RuleWithActions() override;

headers/modsecurity/rule_with_operator.h

@@ -42,7 +42,7 @@ class RuleWithOperator : public RuleWithActions {
         variables::Variables *variables,
         std::vector<actions::Action *> *actions,
         Transformations *transformations,
-        std::unique_ptr<std::string> fileName,
+        const std::string &fileName,
         int lineNumber);
 
     ~RuleWithOperator() override;