Exemple #1
0
void ansi_c_convert_typet::write(typet &type)
{
  type.clear();

  // first, do "other"

  if(!other.empty())
  {
    if(
      double_cnt || float_cnt || signed_cnt || unsigned_cnt || int_cnt ||
      bool_cnt || short_cnt || char_cnt || int8_cnt || int16_cnt || int32_cnt ||
      int64_cnt || ptr32_cnt || ptr64_cnt || long_cnt)
    {
      err_location(location);
      error("illegal type modifier for defined type");
      throw 0;
    }

    if(other.size() != 1)
    {
      err_location(location);
      error("illegal combination of defined types");
      throw 0;
    }

    type.swap(other.front());
  }
  else if(double_cnt || float_cnt)
  {
    if(
      signed_cnt || unsigned_cnt || int_cnt || bool_cnt || int8_cnt ||
      int16_cnt || int32_cnt || int64_cnt || ptr32_cnt || ptr64_cnt ||
      short_cnt || char_cnt)
    {
      err_location(location);
      error("cannot conbine integer type with float");
      throw 0;
    }

    if(double_cnt && float_cnt)
    {
      err_location(location);
      error("conflicting type modifiers");
      throw 0;
    }

    if(long_cnt == 0)
    {
      if(double_cnt != 0)
        type = double_type();
      else
        type = float_type();
    }
    else if(long_cnt == 1 || long_cnt == 2)
    {
      if(double_cnt != 0)
        type = long_double_type();
      else
      {
        err_location(location);
        error("conflicting type modifiers");
        throw 0;
      }
    }
    else
    {
      err_location(location);
      error("illegal type modifier for float");
      throw 0;
    }
  }
  else if(bool_cnt)
  {
    if(
      signed_cnt || unsigned_cnt || int_cnt || short_cnt || int8_cnt ||
      int16_cnt || int32_cnt || int64_cnt || ptr32_cnt || ptr64_cnt ||
      char_cnt || long_cnt)
    {
      err_location(location);
      error("illegal type modifier for boolean type");
      throw 0;
    }

    type.id("bool");
  }
  else if(ptr32_cnt || ptr64_cnt)
  {
    type.id("pointer");
    type.subtype() = typet("empty");
  }
  else
  {
    // it is integer -- signed or unsigned?

    if(signed_cnt && unsigned_cnt)
    {
      err_location(location);
      error("conflicting type modifiers");
      throw 0;
    }
    if(unsigned_cnt)
      type.id("unsignedbv");
    else if(signed_cnt)
      type.id("signedbv");
    else
    {
      if(char_cnt)
        type.id(config.ansi_c.char_is_unsigned ? "unsignedbv" : "signedbv");
      else
        type.id("signedbv");
    }

    // get width

    unsigned width;

    if(int8_cnt || int16_cnt || int32_cnt || int64_cnt)
    {
      if(long_cnt || char_cnt || short_cnt)
      {
        err_location(location);
        error("conflicting type modifiers");
        throw 0;
      }

      if(int8_cnt)
        width = 1 * 8;
      else if(int16_cnt)
        width = 2 * 8;
      else if(int32_cnt)
        width = 4 * 8;
      else if(int64_cnt)
        width = 8 * 8;
      else
        abort();
    }
    else if(short_cnt)
    {
      if(long_cnt || char_cnt)
      {
        err_location(location);
        error("conflicting type modifiers");
        throw 0;
      }

      width = config.ansi_c.short_int_width;
    }
    else if(char_cnt)
    {
      if(long_cnt)
      {
        err_location(location);
        error("illegal type modifier for char type");
        throw 0;
      }

      width = config.ansi_c.char_width;
    }
    else if(long_cnt == 0)
    {
      width = config.ansi_c.int_width;
    }
    else if(long_cnt == 1)
    {
      width = config.ansi_c.long_int_width;
    }
    else if(long_cnt == 2)
    {
      width = config.ansi_c.long_long_int_width;
    }
    else
    {
      err_location(location);
      error("illegal type modifier for integer type");
      throw 0;
    }

    type.width(width);
  }

  c_qualifiers.write(type);
}
void ansi_c_convert_typet::write(typet &type)
{
  type.clear();
  
  // first, do "other"

  if(!other.empty())
  {
    if(double_cnt || float_cnt || signed_cnt ||
       unsigned_cnt || int_cnt || c_bool_cnt || proper_bool_cnt ||
       short_cnt || char_cnt || complex_cnt || long_cnt ||
       int8_cnt || int16_cnt || int32_cnt || int64_cnt ||
       gcc_float128_cnt || gcc_int128_cnt || bv_cnt)
    {
      err_location(location);
      error("illegal type modifier for defined type");
      throw 0;
    }

    if(other.size()!=1)
    {
      err_location(location);
      error("illegal combination of defined types");
      throw 0;
    }

    type.swap(other.front());
  }
  else if(gcc_float128_cnt)
  {
    if(signed_cnt || unsigned_cnt || int_cnt || c_bool_cnt || proper_bool_cnt ||
       int8_cnt || int16_cnt || int32_cnt || int64_cnt ||
       gcc_int128_cnt || bv_cnt ||
       short_cnt || char_cnt)
    {
      err_location(location);
      error("cannot combine integer type with float");
      throw 0;
    }

    if(long_cnt || double_cnt || float_cnt)
    {
      err_location(location);
      error("conflicting type modifiers");
      throw 0;
    }
    
    type=long_double_type();
  }
  else if(double_cnt || float_cnt)
  {
    if(signed_cnt || unsigned_cnt || int_cnt || c_bool_cnt || proper_bool_cnt ||
       int8_cnt || int16_cnt || int32_cnt || int64_cnt ||
       gcc_int128_cnt|| bv_cnt ||
       short_cnt || char_cnt)
    {
      err_location(location);
      error("cannot combine integer type with float");
      throw 0;
    }

    if(double_cnt && float_cnt)
    {
      err_location(location);
      error("conflicting type modifiers");
      throw 0;
    }

    if(long_cnt==0)
    {
      if(double_cnt!=0)
        type=double_type();
      else
        type=float_type();
    }
    else if(long_cnt==1 || long_cnt==2)
    {
      if(double_cnt!=0)
        type=long_double_type();
      else
      {
        err_location(location);
        error("conflicting type modifiers");
        throw 0;
      }
    }
    else
    {
      err_location(location);
      error("illegal type modifier for float");
      throw 0;
    }
  }
  else if(c_bool_cnt)
  {
    if(signed_cnt || unsigned_cnt || int_cnt || short_cnt ||
       int8_cnt || int16_cnt || int32_cnt || int64_cnt ||
       gcc_float128_cnt || bv_cnt || proper_bool_cnt ||
       char_cnt || long_cnt)
    {
      err_location(location);
      error("illegal type modifier for C boolean type");
      throw 0;
    }

    type.id(ID_unsignedbv);
    type.set(ID_width, config.ansi_c.bool_width);
    type.set(ID_C_c_type, ID_bool);
  }
  else if(proper_bool_cnt)
  {
    if(signed_cnt || unsigned_cnt || int_cnt || short_cnt ||
       int8_cnt || int16_cnt || int32_cnt || int64_cnt ||
       gcc_float128_cnt || bv_cnt ||
       char_cnt || long_cnt)
    {
      err_location(location);
      error("illegal type modifier for proper boolean type");
      throw 0;
    }

    type.id(ID_bool);
  }
  else if(complex_cnt && !char_cnt && !signed_cnt && !unsigned_cnt && !short_cnt && !gcc_int128_cnt)
  {
    // the "default" for complex is double
    type=double_type();
  }
  else
  {
    // it is integer -- signed or unsigned?

    if(signed_cnt && unsigned_cnt)
    {
      err_location(location);
      error("conflicting type modifiers");
      throw 0;
    }
    else if(unsigned_cnt)
      type.id(ID_unsignedbv);
    else if(signed_cnt)
      type.id(ID_signedbv);
    else
    {
      if(char_cnt)
        type.id(config.ansi_c.char_is_unsigned?ID_unsignedbv:ID_signedbv);
      else
        type.id(ID_signedbv);
    }

    // get width

    unsigned width;
    
    if(gcc_mode_QI || gcc_mode_HI || gcc_mode_SI || gcc_mode_DI)
    {
      if(gcc_mode_QI)
        width=1*8;
      else if(gcc_mode_HI)
        width=2*8;
      else if(gcc_mode_SI)
        width=4*8;
      else if(gcc_mode_DI)
        width=8*8;
      else
        assert(false);
    }
    else if(int8_cnt || int16_cnt || int32_cnt || int64_cnt || gcc_int128_cnt || bv_cnt)
    {
      if(long_cnt || char_cnt || short_cnt)
      {
        err_location(location);
        error("conflicting type modifiers");
        throw 0;
      }
      
      if(int8_cnt)
        width=1*8;
      else if(int16_cnt)
        width=2*8;
      else if(int32_cnt)
        width=4*8;
      else if(int64_cnt)
        width=8*8;
      else if(bv_cnt)
        width=bv_width;
      else if(gcc_int128_cnt)
        width=128;
      else
        assert(false);
    }
    else if(short_cnt)
    {
      if(long_cnt || char_cnt)
      {
        err_location(location);
        error("conflicting type modifiers");
        throw 0;
      }

      width=config.ansi_c.short_int_width;
    }
    else if(char_cnt)
    {
      if(long_cnt)
      {
        err_location(location);
        error("illegal type modifier for char type");
        throw 0;
      }

      width=config.ansi_c.char_width;
    }
    else if(long_cnt==0)
    {
      width=config.ansi_c.int_width;
    }
    else if(long_cnt==1)
    {
      width=config.ansi_c.long_int_width;
    }
    else if(long_cnt==2)
    {
      width=config.ansi_c.long_long_int_width;
    }
    else
    {
      err_location(location);
      error("illegal type modifier for integer type");
      throw 0;
    }

    type.set(ID_width, width);
  }

  if(vector_size.is_not_nil())
  {
    vector_typet new_type;
    new_type.size()=vector_size;
    new_type.location()=vector_size.location();
    new_type.subtype().swap(type);
    type=new_type;
  }
  
  if(complex_cnt)
  {
    // These take more or less arbitrary subtypes.
    complex_typet new_type;
    new_type.location()=location;
    new_type.subtype()=type;
    type.swap(new_type);
  }

  c_qualifiers.write(type);

  if(packed)
    type.set(ID_C_packed, true);

  if(aligned)
    type.set(ID_C_alignment, alignment);
}