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sqarray.h

/*    see copyright notice in squirrel.h */
#ifndef _SQARRAY_H_
#define _SQARRAY_H_

struct SQArray : public CHAINABLE_OBJ
{
private:
      SQArray(SQSharedState *ss,SQInteger nsize){_values.resize(nsize); INIT_CHAIN();ADD_TO_CHAIN(&_ss(this)->_gc_chain,this);}
      ~SQArray()
      {
            REMOVE_FROM_CHAIN(&_ss(this)->_gc_chain,this);
      }
public:
      static SQArray* Create(SQSharedState *ss,SQInteger nInitialSize){
            SQArray *newarray=(SQArray*)SQ_MALLOC(sizeof(SQArray));
            new (newarray) SQArray(ss,nInitialSize);
            return newarray;
      }
#ifndef NO_GARBAGE_COLLECTOR
      void Mark(SQCollectable **chain);
#endif
      void Finalize(){
            _values.resize(0);
      }
      bool Get(const SQInteger nidx,SQObjectPtr &val)
      {
            if(nidx>=0 && nidx<(SQInteger)_values.size()){
                  SQObjectPtr &o = _values[nidx];
                  val = _realval(o);
                  return true;
            }
            else return false;
      }
      bool Set(const SQInteger nidx,const SQObjectPtr &val)
      {
            if(nidx>=0 && nidx<(SQInteger)_values.size()){
                  _values[nidx]=val;
                  return true;
            }
            else return false;
      }
      SQInteger Next(const SQObjectPtr &refpos,SQObjectPtr &outkey,SQObjectPtr &outval)
      {
            SQUnsignedInteger idx=TranslateIndex(refpos);
            while(idx<_values.size()){
                  //first found
                  outkey=(SQInteger)idx;
                  SQObjectPtr &o = _values[idx];
                  outval = _realval(o);
                  //return idx for the next iteration
                  return ++idx;
            }
            //nothing to iterate anymore
            return -1;
      }
      SQArray *Clone(){SQArray *anew=Create(_opt_ss(this),Size()); anew->_values.copy(_values); return anew; }
      SQInteger Size() const {return _values.size();}
      void Resize(SQInteger size,SQObjectPtr &fill = _null_) { _values.resize(size,fill); ShrinkIfNeeded(); }
      void Reserve(SQInteger size) { _values.reserve(size); }
      void Append(const SQObject &o){_values.push_back(o);}
      void Extend(const SQArray *a);
      SQObjectPtr &Top(){return _values.top();}
      void Pop(){_values.pop_back(); ShrinkIfNeeded(); }
      void Insert(const SQObject& idx,const SQObject &val){_values.insert((SQUnsignedInteger)tointeger(idx),val);}
      void ShrinkIfNeeded() {
            if(_values.size() <= _values.capacity()>>2) //shrink the array
                  _values.shrinktofit();
      }
      void Remove(SQUnsignedInteger idx){
            _values.remove(idx);
            ShrinkIfNeeded();
      }
      void Release()
      {
            sq_delete(this,SQArray);
      }
      SQObjectPtrVec _values;
};
#endif //_SQARRAY_H_

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