spot  2.8.1
twaproduct.hh
1 // -*- coding: utf-8 -*-
2 // Copyright (C) 2011, 2013, 2014, 2015, 2016, 2019 Laboratoire de Recherche
3 // et Développement de l'Epita (LRDE).
4 // Copyright (C) 2003, 2004, 2006 Laboratoire d'Informatique de Paris
5 // 6 (LIP6), département Systèmes Répartis Coopératifs (SRC),
6 // Université Pierre et Marie Curie.
7 //
8 // This file is part of Spot, a model checking library.
9 //
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22 
23 #pragma once
24 
25 #include <spot/twa/twa.hh>
26 #include <spot/misc/fixpool.hh>
27 
28 namespace spot
29 {
30 
36  class SPOT_API state_product final: public state
37  {
38  public:
45  state_product(const state* left,
46  const state* right,
47  fixed_size_pool* pool)
48  : left_(left), right_(right), count_(1), pool_(pool)
49  {
50  }
51 
52  virtual void destroy() const override;
53 
54  const state*
55  left() const
56  {
57  return left_;
58  }
59 
60  const state*
61  right() const
62  {
63  return right_;
64  }
65 
66  virtual int compare(const state* other) const override;
67  virtual size_t hash() const override;
68  virtual state_product* clone() const override;
69 
70  private:
71  const state* left_;
72  const state* right_;
73  mutable unsigned count_;
74  fixed_size_pool* pool_;
75 
76  virtual ~state_product();
77  state_product(const state_product& o) = delete;
78  };
79 
80 
82  class SPOT_API twa_product: public twa
83  {
84  public:
89  twa_product(const const_twa_ptr& left, const const_twa_ptr& right);
90 
91  virtual ~twa_product();
92 
93  virtual const state* get_init_state() const override;
94 
95  virtual twa_succ_iterator*
96  succ_iter(const state* state) const override;
97 
98  virtual std::string format_state(const state* state) const override;
99 
100  virtual state* project_state(const state* s, const const_twa_ptr& t)
101  const override;
102 
103  const acc_cond& left_acc() const;
104  const acc_cond& right_acc() const;
105 
106  protected:
107  const_twa_ptr left_;
108  const_twa_ptr right_;
109  bool left_kripke_;
110  fixed_size_pool pool_;
111 
112  private:
113  // Disallow copy.
114  twa_product(const twa_product&) = delete;
115  twa_product& operator=(const twa_product&) = delete;
116  };
117 
119  class SPOT_API twa_product_init final: public twa_product
120  {
121  public:
122  twa_product_init(const const_twa_ptr& left, const const_twa_ptr& right,
123  const state* left_init, const state* right_init);
124  virtual const state* get_init_state() const override;
125  protected:
126  const state* left_init_;
127  const state* right_init_;
128  };
129 
131  inline twa_product_ptr otf_product(const const_twa_ptr& left,
132  const const_twa_ptr& right)
133  {
134  return SPOT_make_shared_enabled__(twa_product, left, right);
135  }
136 
138  inline twa_product_ptr otf_product_at(const const_twa_ptr& left,
139  const const_twa_ptr& right,
140  const state* left_init,
141  const state* right_init)
142  {
143  return SPOT_make_shared_enabled__(twa_product_init,
144  left, right, left_init, right_init);
145  }
146 }
Definition: automata.hh:26
A lazy product. (States are computed on the fly.)
Definition: twaproduct.hh:82
A Transition-based ω-Automaton.
Definition: twa.hh:622
Abstract class for states.
Definition: twa.hh:50
A lazy product with different initial states.
Definition: twaproduct.hh:119
Iterate over the successors of a state.
Definition: twa.hh:397
An acceptance condition.
Definition: acc.hh:58
A state for spot::twa_product.
Definition: twaproduct.hh:36
state_product(const state *left, const state *right, fixed_size_pool *pool)
Constructor.
Definition: twaproduct.hh:45
A fixed-size memory pool implementation.
Definition: fixpool.hh:31

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