remove default destructors & some default constructors

Another ~700 KB reduction in binary size

src/muz/transforms/dl_mk_array_eq_rewrite.h

@@ -40,7 +40,6 @@ namespace datalog {
      public:
         mk_array_eq_rewrite(context & ctx, unsigned priority);
         rule_set * operator()(rule_set const & source) override;
-        ~mk_array_eq_rewrite() override{}
     };
 
 

src/muz/transforms/dl_mk_array_instantiation.h

@@ -112,7 +112,6 @@ namespace datalog {
      public:
         mk_array_instantiation(context & ctx, unsigned priority);
         rule_set * operator()(rule_set const & source) override;
-        ~mk_array_instantiation() override{}
     };
 
 

src/muz/transforms/dl_mk_backwards.cpp

@@ -27,8 +27,6 @@ namespace datalog {
         m(ctx.get_manager()),
         m_ctx(ctx) {        
     }
-
-    mk_backwards::~mk_backwards() { }
         
     rule_set * mk_backwards::operator()(rule_set const & source) {
         context& ctx = source.get_context();

src/muz/transforms/dl_mk_backwards.h

@@ -27,7 +27,6 @@ namespace datalog {
         context&     m_ctx;
     public:
         mk_backwards(context & ctx, unsigned priority = 33000);
-        ~mk_backwards() override;
         rule_set * operator()(rule_set const & source) override;
     };
 

src/muz/transforms/dl_mk_bit_blast.cpp

@@ -146,8 +146,6 @@ namespace datalog {
             m_dst(nullptr)
         {}
 
-        ~expand_mkbv_cfg() {}
-
         void set_src(rule_set const* src) { m_src = src; }
         void set_dst(rule_set* dst) { m_dst = dst; }
         func_decl_ref_vector const& old_funcs() const { return m_old_funcs; }

src/muz/transforms/dl_mk_elim_term_ite.cpp

@@ -80,8 +80,6 @@ namespace datalog {
         rm(ctx.get_rule_manager()),
         m_ground(m) {}
 
-    mk_elim_term_ite::~mk_elim_term_ite() {}
-
     /**
        \brief map free variables in e to ground, fresh, constants
        m_ground is reset on every new rule so it is safe to assume

src/muz/transforms/dl_mk_elim_term_ite.h

@@ -35,7 +35,6 @@ namespace datalog {
         expr_ref ground(expr* e);
     public:
         mk_elim_term_ite(context &ctx, unsigned priority);
-        ~mk_elim_term_ite() override;
         rule_set * operator()(const rule_set &source) override;
     };
 }

src/muz/transforms/dl_mk_karr_invariants.cpp

@@ -58,8 +58,6 @@ namespace datalog {
             m_inner_ctx.updt_params(params);
     }
 
-    mk_karr_invariants::~mk_karr_invariants() { }
-
     void matrix::display_row(
         std::ostream& out, vector<rational> const& row, rational const& b, bool is_eq) {
         for (unsigned j = 0; j < row.size(); ++j) {

src/muz/transforms/dl_mk_karr_invariants.h

@@ -62,8 +62,6 @@ namespace datalog {
         rule_set* update_rules(rule_set const& src);
     public:
         mk_karr_invariants(context & ctx, unsigned priority);
-
-        ~mk_karr_invariants() override;
         
         rule_set * operator()(rule_set const & source) override;
 

src/muz/transforms/dl_mk_loop_counter.cpp

@@ -30,8 +30,6 @@ namespace datalog {
         m_refs(m) {        
     }
 
-    mk_loop_counter::~mk_loop_counter() { }
-
     app_ref mk_loop_counter::add_arg(rule_set const& src, rule_set& dst, app* fn, unsigned idx) {
         expr_ref_vector args(m);
         func_decl* new_fn, *old_fn = fn->get_decl();

src/muz/transforms/dl_mk_loop_counter.h

@@ -35,7 +35,6 @@ namespace datalog {
         app_ref del_arg(app* fn);        
     public:
         mk_loop_counter(context & ctx, unsigned priority = 33000);
-        ~mk_loop_counter() override;
         
         rule_set * operator()(rule_set const & source) override;
 

src/muz/transforms/dl_mk_magic_symbolic.cpp

@@ -63,8 +63,6 @@ namespace datalog {
         m(ctx.get_manager()),
         m_ctx(ctx) {        
     }
-
-    mk_magic_symbolic::~mk_magic_symbolic() { }
         
     rule_set * mk_magic_symbolic::operator()(rule_set const & source) {
         if (!m_ctx.magic()) {

src/muz/transforms/dl_mk_magic_symbolic.h

@@ -29,7 +29,6 @@ namespace datalog {
         app_ref      mk_query(app* q);
     public:
         mk_magic_symbolic(context & ctx, unsigned priority = 33037);
-        ~mk_magic_symbolic() override;
         rule_set * operator()(rule_set const & source) override;
     };