language_util.cpp

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/*******************************************************************\
 
Module:
 
Author: Daniel Kroening, kroening@cs.cmu.edu
 
\*******************************************************************/
 
#include "language_util.h"
 
#include <util/invariant.h>
#include <util/namespace.h>
#include <util/std_expr.h>
#include <util/symbol_table.h>
 
#include "language.h"
#include "mode.h"
 
#include <memory>
 
std::string from_expr_using_mode(
  const namespacet &ns,
  const irep_idt &mode,
  const exprt &expr)
{
  std::unique_ptr<languaget> language = (mode == ID_unknown)
                                          ? get_default_language()
                                          : get_language_from_mode(mode);
  INVARIANT(
    language, "could not retrieve language for mode '" + id2string(mode) + "'");
 
  std::string result;
  language->from_expr(expr, result, ns);
 
  return result;
}
 
std::string from_expr(
  const namespacet &ns,
  const irep_idt &identifier,
  const exprt &expr)
{
  std::unique_ptr<languaget> p(get_language_from_identifier(ns, identifier));
 
  std::string result;
  p->from_expr(expr, result, ns);
 
  return result;
}
 
std::string from_type(
  const namespacet &ns,
  const irep_idt &identifier,
  const typet &type)
{
  std::unique_ptr<languaget> p(get_language_from_identifier(ns, identifier));
 
  std::string result;
  p->from_type(type, result, ns);
 
  return result;
}
 
std::string type_to_name(
  const namespacet &ns,
  const irep_idt &identifier,
  const typet &type)
{
  std::unique_ptr<languaget> p(get_language_from_identifier(ns, identifier));
 
  std::string result;
  p->type_to_name(type, result, ns);
 
  return result;
}
 
std::string from_expr(const exprt &expr)
{
  symbol_tablet symbol_table;
  return from_expr(namespacet(symbol_table), irep_idt(), expr);
}
 
std::string from_type(const typet &type)
{
  symbol_tablet symbol_table;
  return from_type(namespacet(symbol_table), irep_idt(), type);
}
 
exprt to_expr(
  const namespacet &ns,
  const irep_idt &identifier,
  const std::string &src)
{
  std::unique_ptr<languaget> p(get_language_from_identifier(ns, identifier));
 
  null_message_handlert null_message_handler;
  p->set_message_handler(null_message_handler);
 
  const symbolt &symbol=ns.lookup(identifier);
 
  exprt expr;
 
  if(p->to_expr(src, id2string(symbol.module), expr, ns))
    return nil_exprt();
 
  return expr;
}
 
std::string type_to_name(const typet &type)
{
  symbol_tablet symbol_table;
  return type_to_name(namespacet(symbol_table), irep_idt(), type);
}