341 lines
9.7 KiB
C
341 lines
9.7 KiB
C
/* Support for printing Chill types for GDB, the GNU debugger.
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Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 2000
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdb_obstack.h"
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#include "bfd.h" /* Binary File Description */
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "value.h"
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#include "gdbcore.h"
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#include "target.h"
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#include "language.h"
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#include "ch-lang.h"
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#include "typeprint.h"
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#include "gdb_string.h"
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#include <errno.h>
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static void chill_type_print_base (struct type *, struct ui_file *, int, int);
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void
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chill_print_type (struct type *type, char *varstring, struct ui_file *stream,
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int show, int level)
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{
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if (varstring != NULL && *varstring != '\0')
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{
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fputs_filtered (varstring, stream);
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fputs_filtered (" ", stream);
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}
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chill_type_print_base (type, stream, show, level);
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}
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/* Print the name of the type (or the ultimate pointer target,
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function value or array element).
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SHOW nonzero means don't print this type as just its name;
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show its real definition even if it has a name.
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SHOW zero means print just typename or tag if there is one
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SHOW negative means abbreviate structure elements.
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SHOW is decremented for printing of structure elements.
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LEVEL is the depth to indent by.
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We increase it for some recursive calls. */
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static void
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chill_type_print_base (struct type *type, struct ui_file *stream, int show,
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int level)
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{
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register int len;
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register int i;
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struct type *index_type;
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struct type *range_type;
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LONGEST low_bound;
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LONGEST high_bound;
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QUIT;
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wrap_here (" ");
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if (type == NULL)
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{
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fputs_filtered ("<type unknown>", stream);
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return;
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}
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/* When SHOW is zero or less, and there is a valid type name, then always
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just print the type name directly from the type. */
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if ((show <= 0) && (TYPE_NAME (type) != NULL))
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{
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fputs_filtered (TYPE_NAME (type), stream);
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return;
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}
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if (TYPE_CODE (type) != TYPE_CODE_TYPEDEF)
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CHECK_TYPEDEF (type);
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switch (TYPE_CODE (type))
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{
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case TYPE_CODE_TYPEDEF:
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chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
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break;
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case TYPE_CODE_PTR:
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if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_VOID)
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{
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fprintf_filtered (stream,
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TYPE_NAME (type) ? TYPE_NAME (type) : "PTR");
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break;
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}
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fprintf_filtered (stream, "REF ");
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chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
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break;
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case TYPE_CODE_BOOL:
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/* FIXME: we should probably just print the TYPE_NAME, in case
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anyone ever fixes the compiler to give us the real names
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in the presence of the chill equivalent of typedef (assuming
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there is one). */
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fprintf_filtered (stream,
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TYPE_NAME (type) ? TYPE_NAME (type) : "BOOL");
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break;
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case TYPE_CODE_ARRAY:
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fputs_filtered ("ARRAY (", stream);
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range_type = TYPE_FIELD_TYPE (type, 0);
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if (TYPE_CODE (range_type) != TYPE_CODE_RANGE)
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chill_print_type (range_type, "", stream, 0, level);
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else
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{
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index_type = TYPE_TARGET_TYPE (range_type);
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low_bound = TYPE_FIELD_BITPOS (range_type, 0);
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high_bound = TYPE_FIELD_BITPOS (range_type, 1);
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print_type_scalar (index_type, low_bound, stream);
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fputs_filtered (":", stream);
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print_type_scalar (index_type, high_bound, stream);
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}
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fputs_filtered (") ", stream);
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chill_print_type (TYPE_TARGET_TYPE (type), "", stream, 0, level);
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break;
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case TYPE_CODE_BITSTRING:
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fprintf_filtered (stream, "BOOLS (%d)",
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TYPE_FIELD_BITPOS (TYPE_FIELD_TYPE (type, 0), 1) + 1);
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break;
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case TYPE_CODE_SET:
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fputs_filtered ("POWERSET ", stream);
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chill_print_type (TYPE_INDEX_TYPE (type), "", stream,
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show - 1, level);
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break;
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case TYPE_CODE_STRING:
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range_type = TYPE_FIELD_TYPE (type, 0);
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index_type = TYPE_TARGET_TYPE (range_type);
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high_bound = TYPE_FIELD_BITPOS (range_type, 1);
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fputs_filtered ("CHARS (", stream);
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print_type_scalar (index_type, high_bound + 1, stream);
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fputs_filtered (")", stream);
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break;
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case TYPE_CODE_MEMBER:
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fprintf_filtered (stream, "MEMBER ");
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chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
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break;
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case TYPE_CODE_REF:
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fprintf_filtered (stream, "/*LOC*/ ");
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chill_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
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break;
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case TYPE_CODE_FUNC:
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fprintf_filtered (stream, "PROC (");
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len = TYPE_NFIELDS (type);
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for (i = 0; i < len; i++)
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{
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struct type *param_type = TYPE_FIELD_TYPE (type, i);
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if (i > 0)
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{
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fputs_filtered (", ", stream);
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wrap_here (" ");
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}
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if (TYPE_CODE (param_type) == TYPE_CODE_REF)
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{
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chill_type_print_base (TYPE_TARGET_TYPE (param_type),
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stream, 0, level);
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fputs_filtered (" LOC", stream);
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}
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else
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chill_type_print_base (param_type, stream, show, level);
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}
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fprintf_filtered (stream, ")");
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if (TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_VOID)
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{
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fputs_filtered (" RETURNS (", stream);
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chill_type_print_base (TYPE_TARGET_TYPE (type), stream, 0, level);
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fputs_filtered (")", stream);
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}
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break;
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case TYPE_CODE_STRUCT:
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if (chill_varying_type (type))
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{
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chill_type_print_base (TYPE_FIELD_TYPE (type, 1),
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stream, 0, level);
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fputs_filtered (" VARYING", stream);
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}
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else
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{
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fprintf_filtered (stream, "STRUCT ");
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fprintf_filtered (stream, "(\n");
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if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
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{
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if (TYPE_STUB (type))
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{
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fprintfi_filtered (level + 4, stream, "<incomplete type>\n");
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}
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else
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{
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fprintfi_filtered (level + 4, stream, "<no data fields>\n");
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}
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}
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else
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{
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len = TYPE_NFIELDS (type);
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for (i = TYPE_N_BASECLASSES (type); i < len; i++)
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{
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struct type *field_type = TYPE_FIELD_TYPE (type, i);
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QUIT;
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print_spaces_filtered (level + 4, stream);
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if (TYPE_CODE (field_type) == TYPE_CODE_UNION)
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{
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int j; /* variant number */
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fputs_filtered ("CASE OF\n", stream);
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for (j = 0; j < TYPE_NFIELDS (field_type); j++)
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{
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int k; /* variant field index */
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struct type *variant_type
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= TYPE_FIELD_TYPE (field_type, j);
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int var_len = TYPE_NFIELDS (variant_type);
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print_spaces_filtered (level + 4, stream);
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if (strcmp (TYPE_FIELD_NAME (field_type, j),
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"else") == 0)
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fputs_filtered ("ELSE\n", stream);
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else
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fputs_filtered (":\n", stream);
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if (TYPE_CODE (variant_type) != TYPE_CODE_STRUCT)
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error ("variant record confusion");
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for (k = 0; k < var_len; k++)
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{
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print_spaces_filtered (level + 8, stream);
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chill_print_type (TYPE_FIELD_TYPE (variant_type, k),
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TYPE_FIELD_NAME (variant_type, k),
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stream, show - 1, level + 8);
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if (k < (var_len - 1))
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fputs_filtered (",", stream);
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fputs_filtered ("\n", stream);
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}
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}
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print_spaces_filtered (level + 4, stream);
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fputs_filtered ("ESAC", stream);
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}
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else
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chill_print_type (field_type,
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TYPE_FIELD_NAME (type, i),
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stream, show - 1, level + 4);
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if (i < (len - 1))
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{
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fputs_filtered (",", stream);
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}
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fputs_filtered ("\n", stream);
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}
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}
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fprintfi_filtered (level, stream, ")");
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}
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break;
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case TYPE_CODE_RANGE:
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{
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struct type *target = TYPE_TARGET_TYPE (type);
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if (target && TYPE_NAME (target))
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fputs_filtered (TYPE_NAME (target), stream);
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else
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fputs_filtered ("RANGE", stream);
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if (target == NULL)
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target = builtin_type_long;
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fputs_filtered (" (", stream);
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print_type_scalar (target, TYPE_LOW_BOUND (type), stream);
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fputs_filtered (":", stream);
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print_type_scalar (target, TYPE_HIGH_BOUND (type), stream);
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fputs_filtered (")", stream);
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}
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break;
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case TYPE_CODE_ENUM:
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{
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register int lastval = 0;
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fprintf_filtered (stream, "SET (");
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len = TYPE_NFIELDS (type);
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for (i = 0; i < len; i++)
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{
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QUIT;
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if (i)
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fprintf_filtered (stream, ", ");
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wrap_here (" ");
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fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
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if (lastval != TYPE_FIELD_BITPOS (type, i))
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{
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fprintf_filtered (stream, " = %d", TYPE_FIELD_BITPOS (type, i));
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lastval = TYPE_FIELD_BITPOS (type, i);
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}
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lastval++;
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}
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fprintf_filtered (stream, ")");
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}
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break;
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case TYPE_CODE_VOID:
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case TYPE_CODE_UNDEF:
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case TYPE_CODE_ERROR:
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case TYPE_CODE_UNION:
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case TYPE_CODE_METHOD:
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error ("missing language support in chill_type_print_base");
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break;
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default:
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/* Handle types not explicitly handled by the other cases,
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such as fundamental types. For these, just print whatever
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the type name is, as recorded in the type itself. If there
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is no type name, then complain. */
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if (TYPE_NAME (type) != NULL)
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{
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fputs_filtered (TYPE_NAME (type), stream);
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}
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else
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{
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error ("Unrecognized type code (%d) in symbol table.",
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TYPE_CODE (type));
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}
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break;
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}
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}
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