smt_commands.h

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// Author: Diffblue Ltd.
 
#ifndef CPROVER_SOLVERS_SMT2_INCREMENTAL_SMT_COMMANDS_H
#define CPROVER_SOLVERS_SMT2_INCREMENTAL_SMT_COMMANDS_H
 
#include <util/irep.h>
 
#include "smt_logics.h"
#include "smt_options.h"
#include "smt_terms.h"
 
class smt_command_const_downcast_visitort;
 
class smt_commandt : protected irept
{
public:
  // smt_commandt does not support the notion of an empty / null state. Use
  // std::optional<smt_commandt> instead if an empty command is required.
  smt_commandt() = delete;
 
  using irept::pretty;
 
  bool operator==(const smt_commandt &) const;
  bool operator!=(const smt_commandt &) const;
 
  void accept(smt_command_const_downcast_visitort &) const;
  void accept(smt_command_const_downcast_visitort &&) const;
 
protected:
  using irept::irept;
};
 
class smt_assert_commandt : public smt_commandt,
                            private smt_termt::storert<smt_assert_commandt>
{
public:
  explicit smt_assert_commandt(smt_termt condition);
  const smt_termt &condition() const;
};
 
class smt_check_sat_commandt : public smt_commandt
{
public:
  smt_check_sat_commandt();
};
 
class smt_declare_function_commandt
  : public smt_commandt,
    private smt_sortt::storert<smt_declare_function_commandt>,
    private smt_termt::storert<smt_declare_function_commandt>
{
public:
  smt_declare_function_commandt(
    smt_identifier_termt identifier,
    std::vector<smt_sortt> parameter_sorts);
  const smt_identifier_termt &identifier() const;
  const smt_sortt &return_sort() const;
  std::vector<std::reference_wrapper<const smt_sortt>> parameter_sorts() const;
 
private:
  using sort_storert = smt_sortt::storert<smt_declare_function_commandt>;
  using term_storert = smt_termt::storert<smt_declare_function_commandt>;
};
 
class smt_define_function_commandt
  : public smt_commandt,
    private smt_termt::storert<smt_define_function_commandt>
{
public:
  smt_define_function_commandt(
    irep_idt identifier,
    std::vector<smt_identifier_termt> parameters,
    smt_termt definition);
  const smt_identifier_termt &identifier() const;
  std::vector<std::reference_wrapper<const smt_identifier_termt>>
  parameters() const;
  const smt_sortt &return_sort() const;
  const smt_termt &definition() const;
};
 
class smt_exit_commandt : public smt_commandt
{
public:
  smt_exit_commandt();
};
 
class smt_get_value_commandt : public smt_commandt,
                               protected smt_termt::storert<smt_assert_commandt>
{
public:
  explicit smt_get_value_commandt(smt_termt descriptor);
  const smt_termt &descriptor() const;
};
 
class smt_push_commandt : public smt_commandt
{
public:
  explicit smt_push_commandt(std::size_t levels);
  size_t levels() const;
};
 
class smt_pop_commandt : public smt_commandt
{
public:
  explicit smt_pop_commandt(std::size_t levels);
  size_t levels() const;
};
 
class smt_set_logic_commandt
  : public smt_commandt,
    private smt_logict::storert<smt_set_logic_commandt>
{
public:
  explicit smt_set_logic_commandt(smt_logict logic);
  const smt_logict &logic() const;
};
 
class smt_set_option_commandt
  : public smt_commandt,
    private smt_optiont::storert<smt_set_option_commandt>
{
public:
  explicit smt_set_option_commandt(smt_optiont option);
  const smt_optiont &option() const;
};
 
class smt_command_const_downcast_visitort
{
public:
#define COMMAND_ID(the_id)                                                     \
  virtual void visit(const smt_##the_id##_commandt &) = 0;
#include "smt_commands.def"
#undef COMMAND_ID
};

class smt_command_functiont
{
private:
  std::vector<smt_sortt> parameter_sorts;
  smt_identifier_termt _identifier;
 
public:
  explicit smt_command_functiont(
    const smt_declare_function_commandt &function_declaration);
  explicit smt_command_functiont(
    const smt_define_function_commandt &function_definition);
  irep_idt identifier() const;
  smt_sortt return_sort(const std::vector<smt_termt> &arguments) const;
  void validate(const std::vector<smt_termt> &arguments) const;
};
 
#endif // CPROVER_SOLVERS_SMT2_INCREMENTAL_SMT_COMMANDS_H