odb change dbId unsigned int& id() to unsigned int id() const

For better encapsulation

Signed-off-by: Matt Liberty <[email protected]>

Author: maliberty

src/odb/include/odb/dbId.h

@@ -20,7 +20,7 @@ class dbId
   dbId(unsigned int id) : id_(id) {}
 
   operator unsigned int() const { return id_; }
-  unsigned int& id() { return id_; }
+  unsigned int id() const { return id_; }
 
   bool isValid() const { return id_ != invalid; }
   void clear() { id_ = invalid; }

src/odb/src/db/dbJournal.cpp

@@ -1044,7 +1044,9 @@ void dbJournal::redo_updateNetField()
     case _dbNet::kNonDefaultRule: {
       uint prev_rule;
       log_.pop(prev_rule);
-      log_.pop(net->non_default_rule_.id());
+      unsigned int id;
+      log_.pop(id);
+      net->non_default_rule_ = id;
       bool prev_block_rule;
       bool cur_block_rule;
       log_.pop(prev_block_rule);