remove default destructors

src/muz/base/bind_variables.cpp

@@ -25,9 +25,6 @@ bind_variables::bind_variables(ast_manager & m):
     m_vars(m),
     m_pinned(m)
 {}
-
-bind_variables::~bind_variables() {
-}
     
 expr_ref bind_variables::operator()(expr* fml, bool is_forall) {
     if (m_vars.empty()) {

src/muz/base/bind_variables.h

@@ -40,7 +40,6 @@ class bind_variables {
     expr_ref abstract(expr* fml, cache_t& cache, unsigned scope);
 public:
     bind_variables(ast_manager & m);
-    ~bind_variables();
     
     expr_ref operator()(expr* fml, bool is_forall);
 

src/muz/fp/datalog_parser.cpp

@@ -267,9 +267,6 @@ public:
         next();
     }
 
-    dlexer() {
-    }
-
     void set_stream(std::istream* s, char_reader* r) { 
         m_input = s; 
         m_reader = r;

src/muz/rel/check_relation.cpp

@@ -150,8 +150,6 @@ namespace datalog {
         m(rm.get_context().get_manager()),
         m_base(nullptr) {
     }
-    check_relation_plugin::~check_relation_plugin() {
-    }
     check_relation& check_relation_plugin::get(relation_base& r) {
         return dynamic_cast<check_relation&>(r);
     }

src/muz/rel/check_relation.h

@@ -89,7 +89,6 @@ namespace datalog {
             unsigned_vector const& cols1, unsigned_vector const& cols2);
     public:
         check_relation_plugin(relation_manager& rm);
-        ~check_relation_plugin() override;
         void set_plugin(relation_plugin* p) { m_base = p; }
 
         bool can_handle_signature(const relation_signature & s) override;

src/muz/rel/dl_external_relation.cpp

@@ -34,9 +34,6 @@ namespace datalog {
     {
     }
 
-    external_relation::~external_relation() {
-    }
-
     void external_relation::mk_accessor(decl_kind k, func_decl_ref& fn, const relation_fact& f, bool destructive, expr_ref& res) const {
         ast_manager& m = m_rel.get_manager();
         family_id fid = get_plugin().get_family_id();

src/muz/rel/dl_external_relation.h

@@ -122,7 +122,6 @@ namespace datalog {
         void mk_accessor(decl_kind k, func_decl_ref& fn, const relation_fact& f, bool destructive, expr_ref& res) const;
 
         external_relation(external_relation_plugin & p, const relation_signature & s, expr* r);
-        ~external_relation() override;
 
     public:
         external_relation_plugin & get_plugin() const;

src/muz/rel/dl_mk_explanations.cpp

@@ -631,9 +631,6 @@ namespace datalog {
         );
     }
 
-    mk_explanations::~mk_explanations() {
-    }
-
     func_decl * mk_explanations::get_union_decl(context & ctx) {
         ast_manager & m = ctx.get_manager();
         sort_ref s(ctx.get_decl_util().mk_rule_sort(), m);

src/muz/rel/dl_mk_explanations.h

@@ -65,8 +65,6 @@ namespace datalog {
         */
         mk_explanations(context & ctx);
 
-        ~mk_explanations() override;
-
         /**
            \brief Return explanation predicate that corresponds to \c orig_decl.
         */

src/muz/transforms/dl_mk_array_blast.cpp

@@ -38,9 +38,6 @@ namespace datalog {
         m_rewriter.updt_params(m_params);
     }
 
-    mk_array_blast::~mk_array_blast() {
-    }
-
     bool mk_array_blast::is_store_def(expr* e, expr*& x, expr*& y) {
         if (m.is_eq(e, x, y)) {
             if (!a.is_store(y)) {

src/muz/transforms/dl_mk_array_blast.h

@@ -64,8 +64,6 @@ namespace datalog {
            \brief Create rule transformer that removes array stores and selects by ackermannization.
         */
         mk_array_blast(context & ctx, unsigned priority);
-
-        ~mk_array_blast() override;
         
         rule_set * operator()(rule_set const & source) override;
 

src/muz/transforms/dl_mk_quantifier_abstraction.cpp

@@ -149,9 +149,6 @@ namespace datalog {
         m_mc(nullptr) {
     }
 
-    mk_quantifier_abstraction::~mk_quantifier_abstraction() {
-    }
-
     func_decl* mk_quantifier_abstraction::declare_pred(rule_set const& rules, rule_set& dst, func_decl* old_p) {
 
         if (rules.is_output_predicate(old_p)) {

src/muz/transforms/dl_mk_quantifier_abstraction.h

@@ -49,8 +49,6 @@ namespace datalog {
 
     public:
         mk_quantifier_abstraction(context & ctx, unsigned priority);
-
-        ~mk_quantifier_abstraction() override;
         
         rule_set * operator()(rule_set const & source) override;
     };

src/muz/transforms/dl_mk_quantifier_instantiation.cpp

@@ -41,9 +41,6 @@ namespace datalog {
         m_cnst2var(m) {        
     }
 
-    mk_quantifier_instantiation::~mk_quantifier_instantiation() {        
-    }
-
     void mk_quantifier_instantiation::extract_quantifiers(rule& r, expr_ref_vector& conjs, quantifier_ref_vector& qs) {
         conjs.reset();
         qs.reset();

src/muz/transforms/dl_mk_quantifier_instantiation.h

@@ -60,8 +60,6 @@ namespace datalog {
     public:
         mk_quantifier_instantiation(context & ctx, unsigned priority);
 
-        ~mk_quantifier_instantiation() override;
-        
         rule_set * operator()(rule_set const & source) override;
     };
 

src/muz/transforms/dl_mk_scale.cpp

@@ -110,9 +110,6 @@ namespace datalog {
         m_eqs(m) {
     }
 
-    mk_scale::~mk_scale() {
-    }
-
     rule_set * mk_scale::operator()(rule_set const & source) {
         if (!m_ctx.scale()) {
             return nullptr;

src/muz/transforms/dl_mk_scale.h

@@ -42,7 +42,6 @@ namespace datalog {
         app_ref mk_constraint(unsigned num_vars, app* q);
     public:
         mk_scale(context & ctx, unsigned priority = 33039);
-        ~mk_scale() override;
         rule_set * operator()(rule_set const & source) override;
     };