src/ozulis/core/id.hxx

   1 #include <ozulis/core/assert.hh>
   2
   3 namespace ozulis
   4 {
   5   namespace core
   6   {
   7     template <typename H>
   8     IdBase<H>::IdBase()
   9       : Singleton<IdBase<H> > (),
  10         childs_(),
  11         parents_(),
  12         nextId_(1)
  13     {
  14     }
  15
  16     template <typename H>
  17     id_t
  18     IdBase<H>::nextId()
  19     {
  20       return IdBase<H>::instance().nextId_++;
  21     }
  22
  23     template <typename H>
  24     void
  25     IdBase<H>::setParent(id_t parent, id_t child)
  26     {
  27       if (parent == child)
  28         return;
  29
  30       IdBase<H> & thiz = IdBase<H>::instance();
  31
  32       assert(parent < child);
  33       thiz.parents_[child] = parent;
  34       thiz.childs_[parent].insert(child);
  35     }
  36
  37     template <typename H, typename T>
  38     id_t
  39     Id<H, T>::id()
  40     {
  41       static id_t id_ = IdBase<H>::nextId();
  42       return id_;
  43     }
  44
  45     template <typename H, typename P, typename T>
  46     id_t
  47     IdP<H, P, T>::id()
  48     {
  49       static id_t id_ = -1;
  50
  51       if (id_ != -1)
  52         return id_;
  53
  54       id_t parent = Id<H, P>::id();
  55       id_ = Id<H, T>::id();
  56
  57       IdBase<H>::setParent(parent, id_);
  58       return id_;
  59     }
  60   }
  61 }