smt_commands.cpp

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// Author: Diffblue Ltd.
 
#include "smt_commands.h"
 
#include <util/range.h>
 
#include <algorithm>
 
// Define the irep_idts for commands.
#define COMMAND_ID(the_id)                                                     \
  const irep_idt ID_smt_##the_id##_command{"smt_" #the_id "_command"};
#include "smt_commands.def"
#undef COMMAND_ID
 
bool smt_commandt::operator==(const smt_commandt &other) const
{
  return irept::operator==(other);
}
 
bool smt_commandt::operator!=(const smt_commandt &other) const
{
  return !(*this == other);
}
 
smt_assert_commandt::smt_assert_commandt(smt_termt condition)
  : smt_commandt{ID_smt_assert_command}
{
  INVARIANT(
    condition.get_sort() == smt_bool_sortt{},
    "Only terms with boolean sorts can be asserted.");
  set(ID_cond, upcast(std::move(condition)));
}
 
const smt_termt &smt_assert_commandt::condition() const
{
  return downcast(find(ID_cond));
}
 
smt_check_sat_commandt::smt_check_sat_commandt()
  : smt_commandt{ID_smt_check_sat_command}
{
}
 
smt_declare_function_commandt::smt_declare_function_commandt(
  smt_identifier_termt identifier,
  std::vector<smt_sortt> parameter_sorts)
  : smt_commandt{ID_smt_declare_function_command}
{
  set(ID_identifier, term_storert::upcast(std::move(identifier)));
  std::transform(
    std::make_move_iterator(parameter_sorts.begin()),
    std::make_move_iterator(parameter_sorts.end()),
    std::back_inserter(get_sub()),
    [](smt_sortt &&parameter_sort) {
      return sort_storert::upcast(std::move(parameter_sort));
    });
}
 
const smt_identifier_termt &smt_declare_function_commandt::identifier() const
{
  return static_cast<const smt_identifier_termt &>(
    term_storert::downcast(find(ID_identifier)));
}
 
const smt_sortt &smt_declare_function_commandt::return_sort() const
{
  return identifier().get_sort();
}
 
std::vector<std::reference_wrapper<const smt_sortt>>
smt_declare_function_commandt::parameter_sorts() const
{
  return make_range(get_sub()).map([](const irept &parameter_sort) {
    return std::cref(sort_storert::downcast(parameter_sort));
  });
}
 
smt_exit_commandt::smt_exit_commandt() : smt_commandt{ID_smt_exit_command}
{
}
 
smt_define_function_commandt::smt_define_function_commandt(
  irep_idt identifier,
  std::vector<smt_identifier_termt> parameters,
  smt_termt definition)
  : smt_commandt{ID_smt_define_function_command}
{
  set(
    ID_identifier,
    upcast(smt_identifier_termt{std::move(identifier), definition.get_sort()}));
  std::transform(
    std::make_move_iterator(parameters.begin()),
    std::make_move_iterator(parameters.end()),
    std::back_inserter(get_sub()),
    [](smt_identifier_termt &&parameter) {
      return upcast(std::move(parameter));
    });
  set(ID_code, upcast(std::move(definition)));
}
 
const smt_identifier_termt &smt_define_function_commandt::identifier() const
{
  return static_cast<const smt_identifier_termt &>(
    downcast(find(ID_identifier)));
}
 
std::vector<std::reference_wrapper<const smt_identifier_termt>>
smt_define_function_commandt::parameters() const
{
  return make_range(get_sub()).map([](const irept &parameter) {
    return std::cref(
      static_cast<const smt_identifier_termt &>(downcast((parameter))));
  });
}
 
const smt_sortt &smt_define_function_commandt::return_sort() const
{
  return definition().get_sort();
}
 
const smt_termt &smt_define_function_commandt::definition() const
{
  return downcast(find(ID_code));
}
 
smt_get_value_commandt::smt_get_value_commandt(smt_termt descriptor)
  : smt_commandt{ID_smt_get_value_command}
{
  set(ID_value, upcast(std::move(descriptor)));
}
 
const smt_termt &smt_get_value_commandt::descriptor() const
{
  return downcast(find(ID_value));
}
 
smt_push_commandt::smt_push_commandt(std::size_t levels)
  : smt_commandt(ID_smt_push_command)
{
  set_size_t(ID_value, levels);
}
 
size_t smt_push_commandt::levels() const
{
  return get_size_t(ID_value);
}
 
smt_pop_commandt::smt_pop_commandt(std::size_t levels)
  : smt_commandt(ID_smt_pop_command)
{
  set_size_t(ID_value, levels);
}
 
size_t smt_pop_commandt::levels() const
{
  return get_size_t(ID_value);
}
 
smt_set_logic_commandt::smt_set_logic_commandt(smt_logict logic)
  : smt_commandt(ID_smt_set_logic_command)
{
  set(ID_value, upcast(std::move(logic)));
}
 
const smt_logict &smt_set_logic_commandt::logic() const
{
  return downcast(find(ID_value));
}
 
smt_set_option_commandt::smt_set_option_commandt(smt_optiont option)
  : smt_commandt(ID_smt_set_option_command)
{
  set(ID_value, upcast(std::move(option)));
}
 
const smt_optiont &smt_set_option_commandt::option() const
{
  return downcast(find(ID_value));
}
 
template <typename visitort>
void accept(const smt_commandt &command, const irep_idt &id, visitort &&visitor)
{
#define COMMAND_ID(the_id)                                                     \
  if(id == ID_smt_##the_id##_command)                                          \
    return visitor.visit(static_cast<const smt_##the_id##_commandt &>(command));
// The include below is marked as nolint because including the same file
// multiple times is required as part of the x macro pattern.
#include "smt_commands.def" // NOLINT(build/include)
#undef COMMAND_ID
  UNREACHABLE;
}
 
void smt_commandt::accept(smt_command_const_downcast_visitort &visitor) const
{
  ::accept(*this, id(), visitor);
}
 
void smt_commandt::accept(smt_command_const_downcast_visitort &&visitor) const
{
  ::accept(*this, id(), std::move(visitor));
}
 
smt_command_functiont::smt_command_functiont(
  const smt_declare_function_commandt &function_declaration)
  : _identifier(function_declaration.identifier())
{
  const auto sort_references = function_declaration.parameter_sorts();
  parameter_sorts =
    make_range(sort_references).collect<decltype(parameter_sorts)>();
}
 
smt_command_functiont::smt_command_functiont(
  const smt_define_function_commandt &function_definition)
  : _identifier{function_definition.identifier()}
{
  const auto parameters = function_definition.parameters();
  parameter_sorts =
    make_range(parameters)
      .map([](const smt_termt &term) { return term.get_sort(); })
      .collect<decltype(parameter_sorts)>();
}
 
irep_idt smt_command_functiont::identifier() const
{
  return _identifier.identifier();
}
 
smt_sortt smt_command_functiont::return_sort(
  const std::vector<smt_termt> &arguments) const
{
  return _identifier.get_sort();
}
 
void smt_command_functiont::validate(
  const std::vector<smt_termt> &arguments) const
{
  INVARIANT(
    parameter_sorts.size() == arguments.size(),
    "Number of parameters and number of arguments must be the same.");
  const auto parameter_sort_arguments =
    make_range(parameter_sorts).zip(make_range(arguments));
  for(const auto &parameter_sort_argument_pair : parameter_sort_arguments)
  {
    INVARIANT(
      parameter_sort_argument_pair.first ==
        parameter_sort_argument_pair.second.get_sort(),
      "Sort of argument must have the same sort as the parameter.");
  }
}