/* Language independent support for printing types for GDB, the GNU debugger.
- Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1998,
- 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1986, 1988-1989, 1991-1995, 1998-2001, 2003, 2006-2012
+ Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdb_obstack.h"
#include "cp-abi.h"
#include "typeprint.h"
#include "gdb_string.h"
+#include "exceptions.h"
+#include "valprint.h"
#include <errno.h>
-/* For real-type printing in whatis_exp() */
-extern int objectprint; /* Controls looking up an object's derived type
- using what we find in its vtables. */
-
extern void _initialize_typeprint (void);
static void ptype_command (char *, int);
-static struct type *ptype_eval (struct expression *);
-
static void whatis_command (char *, int);
static void whatis_exp (char *, int);
+
/* Print a description of a type in the format of a
typedef for the current language.
- NEW is the new name for a type TYPE. */
+ NEW is the new name for a type TYPE. */
void
typedef_print (struct type *type, struct symbol *new, struct ui_file *stream)
{
- CHECK_TYPEDEF (type);
- switch (current_language->la_language)
- {
-#ifdef _LANG_c
- case language_c:
- case language_cplus:
- fprintf_filtered (stream, "typedef ");
- type_print (type, "", stream, 0);
- if (TYPE_NAME ((SYMBOL_TYPE (new))) == 0
- || strcmp (TYPE_NAME ((SYMBOL_TYPE (new))), DEPRECATED_SYMBOL_NAME (new)) != 0)
- fprintf_filtered (stream, " %s", SYMBOL_PRINT_NAME (new));
- break;
-#endif
-#ifdef _LANG_m2
- case language_m2:
- fprintf_filtered (stream, "TYPE ");
- if (!TYPE_NAME (SYMBOL_TYPE (new))
- || strcmp (TYPE_NAME ((SYMBOL_TYPE (new))), DEPRECATED_SYMBOL_NAME (new)) != 0)
- fprintf_filtered (stream, "%s = ", SYMBOL_PRINT_NAME (new));
- else
- fprintf_filtered (stream, "<builtin> = ");
- type_print (type, "", stream, 0);
- break;
-#endif
-#ifdef _LANG_pascal
- case language_pascal:
- fprintf_filtered (stream, "type ");
- fprintf_filtered (stream, "%s = ", SYMBOL_PRINT_NAME (new));
- type_print (type, "", stream, 0);
- break;
-#endif
- default:
- error ("Language not supported.");
- }
- fprintf_filtered (stream, ";\n");
+ LA_PRINT_TYPEDEF (type, new, stream);
+}
+
+/* The default way to print a typedef. */
+
+void
+default_print_typedef (struct type *type, struct symbol *new_symbol,
+ struct ui_file *stream)
+{
+ error (_("Language not supported."));
}
/* Print a description of a type TYPE in the form of a declaration of a
If SHOW is negative, we never show the details of elements' types. */
void
-type_print (struct type *type, char *varstring, struct ui_file *stream,
+type_print (struct type *type, const char *varstring, struct ui_file *stream,
int show)
{
LA_PRINT_TYPE (type, varstring, stream, show, 0);
}
+/* Print TYPE to a string, returning it. The caller is responsible for
+ freeing the string. */
+
+char *
+type_to_string (struct type *type)
+{
+ char *s = NULL;
+ struct ui_file *stb;
+ struct cleanup *old_chain;
+ volatile struct gdb_exception except;
+
+ stb = mem_fileopen ();
+ old_chain = make_cleanup_ui_file_delete (stb);
+
+ TRY_CATCH (except, RETURN_MASK_ALL)
+ {
+ type_print (type, "", stb, -1);
+ s = ui_file_xstrdup (stb, NULL);
+ }
+ if (except.reason < 0)
+ s = NULL;
+
+ do_cleanups (old_chain);
+
+ return s;
+}
+
/* Print type of EXP, or last thing in value history if EXP == NULL.
show is passed to type_print. */
int full = 0;
int top = -1;
int using_enc = 0;
+ struct value_print_options opts;
if (exp)
{
else
val = access_value_history (0);
- type = VALUE_TYPE (val);
+ type = value_type (val);
- if (objectprint)
+ get_user_print_options (&opts);
+ if (opts.objectprint)
{
- if (((TYPE_CODE (type) == TYPE_CODE_PTR) ||
- (TYPE_CODE (type) == TYPE_CODE_REF))
- &&
- (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
- {
- real_type = value_rtti_target_type (val, &full, &top, &using_enc);
- if (real_type)
- {
- if (TYPE_CODE (type) == TYPE_CODE_PTR)
- real_type = lookup_pointer_type (real_type);
- else
- real_type = lookup_reference_type (real_type);
- }
- }
+ if (((TYPE_CODE (type) == TYPE_CODE_PTR)
+ || (TYPE_CODE (type) == TYPE_CODE_REF))
+ && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
+ real_type = value_rtti_indirect_type (val, &full, &top, &using_enc);
else if (TYPE_CODE (type) == TYPE_CODE_CLASS)
- real_type = value_rtti_type (val, &full, &top, &using_enc);
+ real_type = value_rtti_type (val, &full, &top, &using_enc);
}
printf_filtered ("type = ");
do_cleanups (old_chain);
}
-/* ARGSUSED */
static void
whatis_command (char *exp, int from_tty)
{
whatis_exp (exp, -1);
}
-/* Simple subroutine for ptype_command. */
-
-static struct type *
-ptype_eval (struct expression *exp)
-{
- if (exp->elts[0].opcode == OP_TYPE)
- {
- return (exp->elts[1].type);
- }
- else
- {
- return (NULL);
- }
-}
-
/* TYPENAME is either the name of a type, or an expression. */
-/* ARGSUSED */
static void
ptype_command (char *typename, int from_tty)
{
- struct type *type;
- struct expression *expr;
- struct cleanup *old_chain;
-
- if (typename == NULL)
- {
- /* Print type of last thing in value history. */
- whatis_exp (typename, 1);
- }
- else
- {
- expr = parse_expression (typename);
- old_chain = make_cleanup (free_current_contents, &expr);
- type = ptype_eval (expr);
- if (type != NULL)
- {
- /* User did "ptype <typename>" */
- printf_filtered ("type = ");
- type_print (type, "", gdb_stdout, 1);
- printf_filtered ("\n");
- do_cleanups (old_chain);
- }
- else
- {
- /* User did "ptype <symbolname>" */
- do_cleanups (old_chain);
- whatis_exp (typename, 1);
- }
- }
+ whatis_exp (typename, 1);
}
/* Print integral scalar data VAL, of type TYPE, onto stdio stream STREAM.
currently use it, and it wasn't clear if it really belonged somewhere
else (like printcmd.c). There are a lot of other gdb routines that do
something similar, but they are generally concerned with printing values
- that come from the inferior in target byte order and target size. */
+ that come from the inferior in target byte order and target size. */
void
print_type_scalar (struct type *type, LONGEST val, struct ui_file *stream)
len = TYPE_NFIELDS (type);
for (i = 0; i < len; i++)
{
- if (TYPE_FIELD_BITPOS (type, i) == val)
+ if (TYPE_FIELD_ENUMVAL (type, i) == val)
{
break;
}
break;
case TYPE_CODE_CHAR:
- LA_PRINT_CHAR ((unsigned char) val, stream);
+ LA_PRINT_CHAR ((unsigned char) val, type, stream);
break;
case TYPE_CODE_BOOL:
case TYPE_CODE_SET:
case TYPE_CODE_STRING:
case TYPE_CODE_ERROR:
- case TYPE_CODE_MEMBER:
+ case TYPE_CODE_MEMBERPTR:
+ case TYPE_CODE_METHODPTR:
case TYPE_CODE_METHOD:
case TYPE_CODE_REF:
case TYPE_CODE_NAMESPACE:
- error ("internal error: unhandled type in print_type_scalar");
+ error (_("internal error: unhandled type in print_type_scalar"));
break;
default:
- error ("Invalid type code in symbol table.");
+ error (_("Invalid type code in symbol table."));
}
gdb_flush (stream);
}
/* Dump details of a type specified either directly or indirectly.
Uses the same sort of type lookup mechanism as ptype_command()
- and whatis_command(). */
+ and whatis_command(). */
void
maintenance_print_type (char *typename, int from_tty)
old_chain = make_cleanup (free_current_contents, &expr);
if (expr->elts[0].opcode == OP_TYPE)
{
- /* The user expression names a type directly, just use that type. */
+ /* The user expression names a type directly, just use that type. */
type = expr->elts[1].type;
}
else
{
/* The user expression may name a type indirectly by naming an
- object of that type. Find that indirectly named type. */
+ object of that type. Find that indirectly named type. */
val = evaluate_type (expr);
- type = VALUE_TYPE (val);
+ type = value_type (val);
}
if (type != NULL)
{
void
_initialize_typeprint (void)
{
-
- add_com ("ptype", class_vars, ptype_command,
- "Print definition of type TYPE.\n\
+ add_com ("ptype", class_vars, ptype_command, _("\
+Print definition of type TYPE.\n\
Argument may be a type name defined by typedef, or \"struct STRUCT-TAG\"\n\
or \"class CLASS-NAME\" or \"union UNION-TAG\" or \"enum ENUM-TAG\".\n\
-The selected stack frame's lexical context is used to look up the name.");
+The selected stack frame's lexical context is used to look up the name.\n\
+Contrary to \"whatis\", \"ptype\" always unrolls any typedefs."));
add_com ("whatis", class_vars, whatis_command,
- "Print data type of expression EXP.");
-
+ _("Print data type of expression EXP.\n\
+Only one level of typedefs is unrolled. See also \"ptype\"."));
}