PreOrderIterator.h

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#pragma once
#include "IteratorImpl.h"
#include "SyntaxTree.h"
#include <stack>
 
class PreOrderIterator : public IteratorImpl {
 
public:
  explicit PreOrderIterator(SyntaxTree const &tree, bool end);
 
  ~PreOrderIterator() override;
 
  SyntaxTree operator*() override;
 
  void operator++() override;
 
  SyntaxTree *operator->() override;
 
  bool operator==(const IteratorImpl &rhs) const override;
 
  bool operator!=(const IteratorImpl &rhs) const override;
 
  IteratorImpl *clone() override;
 
  // private:
  std::stack<SyntaxTree> stack;
};
 
#include "IteratorUtils.tpp"