cpp_template_args.h

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/*******************************************************************\
 
Module: C++ Language Type Checking
 
Author: Daniel Kroening, kroening@cs.cmu.edu
 
\*******************************************************************/

 
#ifndef CPROVER_CPP_CPP_TEMPLATE_ARGS_H
#define CPROVER_CPP_CPP_TEMPLATE_ARGS_H
 
#include <util/expr.h>
#include <util/invariant.h>
 
// A data structures for template arguments, i.e.,
// a sequence of types/expressions of the form <E1, T2, ...>.
// Not to be confused with the template parameters!
 
class cpp_template_args_baset:public irept
{
public:
  cpp_template_args_baset():irept(ID_template_args)
  {
  }
 
  typedef exprt::operandst argumentst;
 
  argumentst &arguments()
  {
    return (argumentst &)(add(ID_arguments).get_sub());
  }
 
  const argumentst &arguments() const
  {
    return (const argumentst &)(find(ID_arguments).get_sub());
  }
};
 
// the non-yet typechecked variant
 
class cpp_template_args_non_tct:public cpp_template_args_baset
{
};
 
inline cpp_template_args_non_tct &to_cpp_template_args_non_tc(
  irept &irep)
{
  PRECONDITION(irep.id() == ID_template_args);
  return static_cast<cpp_template_args_non_tct &>(irep);
}
 
inline const cpp_template_args_non_tct &to_cpp_template_args_non_tc(
  const irept &irep)
{
  PRECONDITION(irep.id() == ID_template_args);
  return static_cast<const cpp_template_args_non_tct &>(irep);
}
 
// the already typechecked variant
 
class cpp_template_args_tct:public cpp_template_args_baset
{
public:
  bool has_unassigned() const
  {
    const argumentst &_arguments=arguments();
    for(argumentst::const_iterator
        it=_arguments.begin();
        it!=_arguments.end();
        it++)
      if(it->id()==ID_unassigned ||
         it->type().id()==ID_unassigned)
        return true;
 
    return false;
  }
};
 
inline cpp_template_args_tct &to_cpp_template_args_tc(irept &irep)
{
  PRECONDITION(irep.id() == ID_template_args);
  return static_cast<cpp_template_args_tct &>(irep);
}
 
inline const cpp_template_args_tct &to_cpp_template_args_tc(const irept &irep)
{
  PRECONDITION(irep.id() == ID_template_args);
  return static_cast<const cpp_template_args_tct &>(irep);
}
 
#endif // CPROVER_CPP_CPP_TEMPLATE_ARGS_H