cpp_typecheck_resolve.h

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/*******************************************************************\
 
Module: C++ Language Type Checking
 
Author: Daniel Kroening, kroening@cs.cmu.edu
 
\*******************************************************************/
 
 
#ifndef CPROVER_CPP_CPP_TYPECHECK_RESOLVE_H
#define CPROVER_CPP_CPP_TYPECHECK_RESOLVE_H
 
#include <util/std_types.h>
 
#include "cpp_template_args.h"
#include "cpp_scopes.h"
 
class cpp_namet;
class cpp_typecheck_fargst;
 
class cpp_typecheck_resolvet
{
public:
  cpp_typecheck_resolvet(
    class cpp_typecheckt &_cpp_typecheck);
 
  enum class wantt { VAR, TYPE, BOTH };
 
  exprt resolve(
    const cpp_namet &cpp_name,
    const wantt want,
    const cpp_typecheck_fargst &fargs,
    bool fail_with_exception=true);
 
  // Returns the scope as a side-effect as 'current_scope'.
  // Should really return explicitly.
  cpp_scopet &resolve_scope(
    const cpp_namet &cpp_name,
    irep_idt &base_name,
    cpp_template_args_non_tct &template_args);
 
  cpp_scopet &resolve_namespace(const cpp_namet &cpp_name);
 
protected:
  cpp_typecheckt &cpp_typecheck;
  source_locationt source_location;
  cpp_scopet *original_scope;
 
  typedef std::vector<exprt> resolve_identifierst;
 
  void convert_identifiers(
    const cpp_scopest::id_sett &id_set,
    const cpp_typecheck_fargst &fargs,
    resolve_identifierst &identifiers);
 
  exprt convert_template_parameter(
    const cpp_idt &id);
 
  exprt convert_identifier(
    const cpp_idt &id,
    const cpp_typecheck_fargst &fargs);
 
  void disambiguate_functions(
    resolve_identifierst &identifiers,
    const cpp_typecheck_fargst &fargs);
 
  void exact_match_functions(
    resolve_identifierst &identifiers,
    const cpp_typecheck_fargst &fargs);
 
  void filter(
    resolve_identifierst &identifiers,
    const wantt want);
 
  struct_tag_typet disambiguate_template_classes(
    const irep_idt &base_name,
    const cpp_scopest::id_sett &id_set,
    const cpp_template_args_non_tct &template_args);
 
  void make_constructors(
    resolve_identifierst &identifiers);
 
  void apply_template_args(
    resolve_identifierst &identifiers,
    const cpp_template_args_non_tct &template_args,
    const cpp_typecheck_fargst &fargs);
 
  void apply_template_args(
    exprt &expr,
    const cpp_template_args_non_tct &template_args,
    const cpp_typecheck_fargst &fargs);
 
  void guess_function_template_args(
    resolve_identifierst &identifiers,
    const cpp_typecheck_fargst &fargs);
 
  void remove_templates(
    resolve_identifierst &identifiers);
 
  void remove_duplicates(
    resolve_identifierst &identifiers);
 
  exprt guess_function_template_args(
    const exprt &expr,
    const cpp_typecheck_fargst &fargs);
 
  void guess_template_args(
    const typet &template_parameter,
    const typet &desired_type);
 
  void guess_template_args(
    const exprt &template_parameter,
    const exprt &desired_expr);
 
  bool disambiguate_functions(
    const exprt &expr,
    unsigned &args_distance,
    const cpp_typecheck_fargst &fargs);
 
  void resolve_argument(
    exprt &argument,
    const cpp_typecheck_fargst &fargs);
 
  exprt do_builtin(
    const irep_idt &base_name,
    const cpp_typecheck_fargst &fargs,
    const cpp_template_args_non_tct &template_args);
 
  void show_identifiers(
    const irep_idt &base_name,
    const resolve_identifierst &identifiers,
    std::ostream &out);
 
  void resolve_with_arguments(
    cpp_scopest::id_sett &id_set,
    const irep_idt &base_name,
    const cpp_typecheck_fargst &fargs);
 
  void filter_for_named_scopes(cpp_scopest::id_sett &id_set);
  void filter_for_namespaces(cpp_scopest::id_sett &id_set);
 
  struct matcht
  {
    std::size_t cost;
    cpp_template_args_tct specialization_args;
    cpp_template_args_tct full_args;
    irep_idt id;
    matcht(
      cpp_template_args_tct _s_args,
      cpp_template_args_tct _f_args,
      irep_idt _id):
      cost(_s_args.arguments().size()),
      specialization_args(_s_args),
      full_args(_f_args),
      id(_id)
    {
    }
 
    bool operator<(const matcht &other) const
    {
      return cost<other.cost;
    }
  };
};
 
#endif // CPROVER_CPP_CPP_TYPECHECK_RESOLVE_H