get_goto_model_from_c.cpp

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/*******************************************************************\
 
Module: Get goto model
 
Author: Daniel Poetzl
 
\*******************************************************************/
 
#include "get_goto_model_from_c.h"
 
#include <ansi-c/ansi_c_language.h>
 
#include <goto-programs/goto_convert_functions.h>
 
#include <langapi/language_file.h>
#include <langapi/mode.h>
 
#include <util/cmdline.h>
#include <util/config.h>
#include <util/exception_utils.h>
#include <util/invariant.h>
#include <util/message.h>
#include <util/symbol_table.h>
 
#include <testing-utils/message.h>
 
goto_modelt get_goto_model_from_c(std::istream &in)
{
  {
    const bool has_language = get_language_from_mode(ID_C) != nullptr;
 
    if(!has_language)
    {
      register_language(new_ansi_c_language);
    }
  }
 
  {
    cmdlinet cmdline;
 
    config = configt{};
    config.main = std::string("main");
    config.set(cmdline);
  }
 
  language_filest language_files;
  language_files.set_message_handler(null_message_handler);
 
  language_filet &language_file = language_files.add_file("");
 
  language_file.language = get_language_from_mode(ID_C);
  CHECK_RETURN(language_file.language);
 
  languaget &language = *language_file.language;
  language.set_message_handler(null_message_handler);
 
  {
    const bool error = language.parse(in, "");
 
    if(error)
      throw invalid_input_exceptiont("parsing failed");
  }
 
  language_file.get_modules();
 
  goto_modelt goto_model;
 
  {
    const bool error = language_files.typecheck(goto_model.symbol_table);
 
    if(error)
      throw invalid_input_exceptiont("typechecking failed");
  }
 
  {
    const bool error =
      language_files.generate_support_functions(goto_model.symbol_table);
 
    if(error)
      throw invalid_input_exceptiont("support function generation failed");
  }
 
  goto_convert(
    goto_model.symbol_table, goto_model.goto_functions, null_message_handler);
 
  return goto_model;
}
 
goto_modelt get_goto_model_from_c(const std::string &code)
{
  std::istringstream in(code);
  return get_goto_model_from_c(in);
}