コード例 #1
0
ファイル: scm-lang.c プロジェクト: jichu4n/prc-tools-remix
LONGEST
scm_unpack (struct type *type, char *valaddr, enum type_code context)
{
  if (is_scmvalue_type (type))
    {
      LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type));
      if (context == TYPE_CODE_BOOL)
	{
	  if (svalue == SCM_BOOL_F)
	    return 0;
	  else
	    return 1;
	}
      switch (7 & (int) svalue)
	{
	case 2:
	case 6:		/* fixnum */
	  return svalue >> 2;
	case 4:		/* other immediate value */
	  if (SCM_ICHRP (svalue))	/* character */
	    return SCM_ICHR (svalue);
	  else if (SCM_IFLAGP (svalue))
	    {
	      switch ((int) svalue)
		{
#ifndef SICP
		case SCM_EOL:
#endif
		case SCM_BOOL_F:
		  return 0;
		case SCM_BOOL_T:
		  return 1;
		}
	    }
	  error ("Value can't be converted to integer.");
	default:
	  return svalue;
	}
    }
  else
    return unpack_long (type, valaddr);
コード例 #2
0
/* FIXME: needs comment: */
void
scm_scmval_print(LONGEST svalue, struct ui_file *stream, int format,
		 int deref_ref, int recurse, enum val_prettyprint pretty)
{
taloop:
  switch (7 & (int)svalue)
    {
    case 2:
    case 6:
      print_longest(stream, (format ? format : 'd'), 1, (svalue >> 2));
      break;
    case 4:
      if (SCM_ICHRP(svalue))
	{
	  svalue = SCM_ICHR(svalue);
	  scm_printchar((int)svalue, stream);
	  break;
	}
      else if (SCM_IFLAGP(svalue)
	       && ((size_t)SCM_ISYMNUM(svalue)
		   < (sizeof(scm_isymnames) / sizeof(char *))))
	{
	  fputs_filtered(SCM_ISYMCHARS(svalue), stream);
	  break;
	}
      else if (SCM_ILOCP(svalue))
	{
	  fprintf_filtered(stream, "#@%ld%c%ld",
			   (long)SCM_IFRAME(svalue),
			   (SCM_ICDRP(svalue) ? '-' : '+'),
			   (long)SCM_IDIST(svalue));
	  break;
	}
      else
	goto idef;
      break;
    case 1:
      /* gloc */
      svalue = SCM_CAR (svalue - 1);
      goto taloop;
    default:
    idef:
      scm_ipruk ("immediate", svalue, stream);
      break;
    case 0:

      switch (SCM_TYP7 (svalue))
	{
	case scm_tcs_cons_gloc:
	  if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0)
	    {
#if 0
	      SCM name;
#endif /* 0 */
	      fputs_filtered ("#<latte ", stream);
#if 1
	      fputs_filtered ("???", stream);
#else
	      name = ((SCM n *) (STRUCT_TYPE (exp)))[struct_i_name];
	      scm_lfwrite (CHARS (name),
			   (sizet) sizeof (char),
			     (sizet) LENGTH (name),
			   port);
#endif /* 1 */
	      fprintf_filtered (stream, " #X%s>", paddr_nz (svalue));
	      break;
	    }
	  /* -Wimplicit-fallthrough vs. -Wdeclaration-after-statement: */
	  goto imcar_noncase_label;
	imcar_noncase_label:
	case scm_tcs_cons_imcar:
	case scm_tcs_cons_nimcar:
	  fputs_filtered ("(", stream);
	  scm_scmlist_print (svalue, stream, format,
			     deref_ref, recurse + 1, pretty);
	  fputs_filtered (")", stream);
	  break;
	case scm_tcs_closures:
	  fputs_filtered ("#<CLOSURE ", stream);
	  scm_scmlist_print (SCM_CODE (svalue), stream, format,
			     deref_ref, recurse + 1, pretty);
	  fputs_filtered (">", stream);
	  break;
	case scm_tc7_string:
	  {
	    size_t len = SCM_LENGTH(svalue);
	    CORE_ADDR addr = (CORE_ADDR)SCM_CDR(svalue);
	    size_t i;
	    size_t done = 0UL;
	    size_t buf_size;
	    gdb_byte buffer[64];
	    int truncate = (print_max && (len > print_max));
	    if (truncate)
	      len = print_max;
	    fputs_filtered ("\"", stream);
	    for (; done < len; done += buf_size)
	      {
		buf_size = min((len - done), 64);
		read_memory((addr + done), buffer, (int)buf_size);

		for (i = 0; i < buf_size; ++i)
		  switch (buffer[i])
		    {
		    case '\"':
		    case '\\':
		      fputs_filtered("\\", stream);
		      goto the_default_label;
		    the_default_label:
		    default:
		      fprintf_filtered(stream, "%c", buffer[i]);
		    }
	      }
	    fputs_filtered((truncate ? "...\"" : "\""), stream);
	    break;
	  }
	  break;
	case scm_tcs_symbols:
	  {
	    const size_t len = min(SCM_LENGTH(svalue), MAX_ALLOCA_SIZE);

	    char *str = (char *)alloca(min(len, MAX_ALLOCA_SIZE));
	    read_memory(SCM_CDR(svalue), (gdb_byte *)str, (int)(len + 1));
	    /* Should handle weird characters, FIXME: do it. */
	    str[len] = '\0';
	    fputs_filtered(str, stream);
	    break;
	  }
	case scm_tc7_vector:
	  {
	    long len = SCM_LENGTH(svalue);
	    int i;
	    LONGEST elements = SCM_CDR(svalue);
	    fputs_filtered ("#(", stream);
	    for (i = 0; i < len; ++i)
	      {
		if (i > 0)
		  fputs_filtered (" ", stream);
		scm_scmval_print (scm_get_field (elements, i), stream, format,
				  deref_ref, recurse + 1, pretty);
	      }
	    fputs_filtered (")", stream);
	  }
	  break;
#if 0
	case tc7_lvector:
	  {
	    SCM result;
	    SCM hook;
	    hook = scm_get_lvector_hook (exp, LV_PRINT_FN);
	    if (hook == BOOL_F)
	      {
		scm_puts ("#<locked-vector ", port);
		scm_intprint (CDR (exp), 16, port);
		scm_puts (">", port);
	      }
	    else
	      {
		result
		  = scm_apply (hook,
			       scm_listify (exp, port,
					    (writing ? BOOL_T : BOOL_F),
					    SCM_UNDEFINED),
			       EOL);
		if (result == BOOL_F)
		  goto punk;
	      }
	    break;
	  }
	  break;
	case tc7_bvect:
	case tc7_ivect:
	case tc7_uvect:
	case tc7_fvect:
	case tc7_dvect:
	case tc7_cvect:
	  scm_raprin1 (exp, port, writing);
	  break;
#endif /* 0 */
	case scm_tcs_subrs:
	  {
	    int index = (int)(SCM_CAR(svalue) >> 8);
#if 1
	    char str[20];
	    snprintf(str, sizeof(str), "#%d", index);
#else
	    char *str = (index ? SCM_CHARS(scm_heap_org + index) : "");
# define SCM_CHARS(x) ((char *)(SCM_CDR(x)))
	    char *str = CHARS(SNAME(exp));
#endif /* 1 */
	    fprintf_filtered(stream, "#<primitive-procedure %s>",
			     str);
	  }
	  break;
#if 0
#ifdef CCLO
	case tc7_cclo:
	  scm_puts ("#<compiled-closure ", port);
	  scm_iprin1 (CCLO_SUBR (exp), port, writing);
	  scm_putc ('>', port);
	  break;
#endif
	case tc7_contin:
	  fprintf_filtered (stream, "#<continuation %d @ #X%lx >",
			    LENGTH (svalue),
			    (long) CHARS (svalue));
	  break;
	case tc7_port:
	  i = PTOBNUM (exp);
	  if (i < scm_numptob
	      && scm_ptobs[i].print
	      && (scm_ptobs[i].print) (exp, port, writing))
	    break;
	  goto punk;
	case tc7_smob:
	  i = SMOBNUM (exp);
	  if (i < scm_numsmob && scm_smobs[i].print
	      && (scm_smobs[i].print) (exp, port, writing))
	    break;
	  goto punk;
#endif
	default:
#if 0
	punk:
#endif
	  scm_ipruk ("type", svalue, stream);
	}
      break;
    }
}