Synopsis - Cross-Reference

  1//
  2// Copyright (C) 2004 Stefan Seefeld
  3// All rights reserved.
  4// Licensed to the public under the terms of the GNU LGPL (>= 2),
  5// see the file COPYING for details.
  6//
  7#ifndef Synopsis_PTree_Display_hh_
  8#define Synopsis_PTree_Display_hh_
  9
 10#include <Synopsis/PTree.hh>
 11
 12namespace Synopsis
 13{
 14namespace PTree
 15{
 16
 17//. The Display class provides an annotated view of the ptree,
 18//. for debugging purposes
 19class Display : private Visitor
 20{
 21public:
 22  Display(std::ostream &os, bool encoded);
 23
 24  void display(Node const *);
 25
 26  virtual void visit(Atom *);
 27  virtual void visit(List *);
 28  // atoms...
 29  virtual void visit(DupAtom *);
 30  // ...lists...
 31  virtual void visit(Brace *);
 32  virtual void visit(Block *b) { visit(static_cast<Brace *>(b));}
 33  virtual void visit(ClassBody *b) { visit(static_cast<Brace *>(b));}
 34  virtual void visit(Declarator *l) { print_encoded(l);}
 35  virtual void visit(Name *l) { print_encoded(l);}
 36  virtual void visit(FstyleCastExpr *l) { print_encoded(l);}
 37private:
 38  void newline();
 39  bool too_deep();
 40  void print_encoded(List *);
 41
 42  std::ostream &my_os;
 43  size_t        my_indent;
 44  bool          my_encoded;
 45};
 46
 47class RTTIDisplay : private Visitor
 48{
 49public:
 50  RTTIDisplay(std::ostream &os, bool encoded);
 51
 52  void display(Node const *);
 53
 54  virtual void visit(Atom *);
 55  virtual void visit(List *);
 56  virtual void visit(DupAtom *);
 57private:
 58  void newline();
 59
 60  std::ostream &my_os;
 61  size_t        my_indent;
 62  bool          my_encoded;
 63};
 64
 65class DotFileGenerator : public PTree::Visitor
 66{
 67public:
 68  DotFileGenerator(std::ostream &);
 69  void write(PTree::Node const *ptree);
 70private:
 71  virtual void visit(PTree::Atom *a);
 72  virtual void visit(PTree::List *l);
 73
 74  std::ostream &my_os;
 75};
 76
 77//. Display the given parse tree segment on the given output stream.
 78//. If 'encoded' is set to 'true', print encoded names / types
 79//. on appropriate nodes. If 'typeinfo' is set to 'true', print
 80//. the class names of the nodes.
 81inline void display(Node const *node, std::ostream &os,
 82		    bool encoded = false, bool typeinfo = false)
 83{
 84  if (typeinfo)
 85  {
 86    RTTIDisplay d(os, encoded);
 87    d.display(node);
 88  }
 89  else
 90  {
 91    Display d(os, encoded);
 92    d.display(node);
 93  }
 94}
 95
 96//. Generate a dot file for the given parse tree segment.
 97inline void generate_dot_file(Node const *node, std::ostream &os)
 98{
 99  DotFileGenerator generator(os);
100  generator.write(node);
101}
102
103}
104}
105
106#endif

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