OpenE2K
/
binutils-gdb
12
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
binutils-gdb/gdb/jv-typeprint.c

302 lines
8.5 KiB
C
Raw Blame History

/* Support for printing Java types for GDB, the GNU debugger.
Copyright 1997 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
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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. */
#include "defs.h"
#include "symtab.h"
#include "gdbtypes.h"
#include "value.h"
#include "demangle.h"
#include "jv-lang.h"
#include "gdb_string.h"
static void
java_type_print_derivation_info (stream, type)
GDB_FILE *stream;
struct type *type;
{
char *name;
int i = 0;
int n_bases = TYPE_N_BASECLASSES (type);
int prev = 0;
for (i = 0; i < n_bases; i++)
{
int kind = BASETYPE_VIA_VIRTUAL(type, i) ? 'I' : 'E';
fputs_filtered (kind == prev ? ", "
: kind == 'I' ? " implements "
: " extends ",
stream);
prev = kind;
name = type_name_no_tag (TYPE_BASECLASS (type, i));
fprintf_filtered (stream, "%s", name ? name : "(null)");
}
if (i > 0)
{
fputs_filtered (" ", stream);
}
}
/* Print the name of the type (or the ultimate pointer target,
function value or array element), or the description of a
structure or union.
SHOW positive means print details about the type (e.g. enum values),
and print structure elements passing SHOW - 1 for show.
SHOW negative means just print the type name or struct tag if there is one.
If there is no name, print something sensible but concise like
"struct {...}".
SHOW zero means just print the type name or struct tag if there is one.
If there is no name, print something sensible but not as concise like
"struct {int x; int y;}".
LEVEL is the number of spaces to indent by.
We increase it for some recursive calls. */
void
java_type_print_base (type, stream, show, level)
struct type *type;
GDB_FILE *stream;
int show;
int level;
{
register int i;
register int len;
char *mangled_name;
char *demangled_name;
QUIT;
wrap_here (" ");
if (type == NULL)
{
fputs_filtered ("<type unknown>", stream);
return;
}
/* When SHOW is zero or less, and there is a valid type name, then always
just print the type name directly from the type. */
if (show <= 0
&& TYPE_NAME (type) != NULL)
{
fputs_filtered (TYPE_NAME (type), stream);
return;
}
CHECK_TYPEDEF (type);
switch (TYPE_CODE (type))
{
case TYPE_CODE_PTR:
java_type_print_base (TYPE_TARGET_TYPE (type), stream, show, level);
break;
case TYPE_CODE_STRUCT:
if (TYPE_TAG_NAME (type) != NULL && TYPE_TAG_NAME (type)[0] == '[')
{ /* array type */
char *name = java_demangle_type_signature (TYPE_TAG_NAME (type));
fputs_filtered (name, stream);
free (name);
break;
}
if (show >= 0)
fprintf_filtered (stream, "class ");
if (TYPE_TAG_NAME (type) != NULL)
{
fputs_filtered (TYPE_TAG_NAME (type), stream);
if (show > 0)
fputs_filtered (" ", stream);
}
wrap_here (" ");
if (show < 0)
{
/* If we just printed a tag name, no need to print anything else. */
if (TYPE_TAG_NAME (type) == NULL)
fprintf_filtered (stream, "{...}");
}
else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
{
java_type_print_derivation_info (stream, type);
fprintf_filtered (stream, "{\n");
if ((TYPE_NFIELDS (type) == 0) && (TYPE_NFN_FIELDS (type) == 0))
{
if (TYPE_FLAGS (type) & TYPE_FLAG_STUB)
fprintfi_filtered (level + 4, stream, "<incomplete type>\n");
else
fprintfi_filtered (level + 4, stream, "<no data fields>\n");
}
/* If there is a base class for this type,
do not print the field that it occupies. */
len = TYPE_NFIELDS (type);
for (i = TYPE_N_BASECLASSES (type); i < len; i++)
{
QUIT;
/* Don't print out virtual function table. */
if (STREQN (TYPE_FIELD_NAME (type, i), "_vptr", 5)
&& is_cplus_marker ((TYPE_FIELD_NAME (type, i))[5]))
continue;
/* Don't print the dummy field "class". */
if (STREQN (TYPE_FIELD_NAME (type, i), "class", 5))
continue;
print_spaces_filtered (level + 4, stream);
if (HAVE_CPLUS_STRUCT (type))
{
if (TYPE_FIELD_PROTECTED (type, i))
fprintf_filtered (stream, "protected ");
else if (TYPE_FIELD_PRIVATE (type, i))
fprintf_filtered (stream, "private ");
else
fprintf_filtered (stream, "public ");
}
if (TYPE_FIELD_STATIC (type, i))
{
fprintf_filtered (stream, "static ");
}
java_print_type (TYPE_FIELD_TYPE (type, i),
TYPE_FIELD_NAME (type, i),
stream, show - 1, level + 4);
fprintf_filtered (stream, ";\n");
}
/* If there are both fields and methods, put a space between. */
len = TYPE_NFN_FIELDS (type);
if (len)
fprintf_filtered (stream, "\n");
/* Print out the methods */
for (i = 0; i < len; i++)
{
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
char *name = type_name_no_tag (type);
int is_constructor = name && STREQ(method_name, name);
for (j = 0; j < len2; j++)
{
char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
int is_full_physname_constructor =
((physname[0] == '_' && physname[1] == '_'
&& strchr ("0123456789Qt", physname[2]))
|| STREQN (physname, "__ct__", 6)
|| DESTRUCTOR_PREFIX_P (physname)
|| STREQN (physname, "__dt__", 6));
QUIT;
print_spaces_filtered (level + 4, stream);
if (TYPE_FN_FIELD_PROTECTED (f, j))
fprintf_filtered (stream, "protected ");
else if (TYPE_FN_FIELD_PRIVATE (f, j))
fprintf_filtered (stream, "private ");
else
fprintf_filtered (stream, "public ");
if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
fprintf_filtered (stream, "virtual ");
else if (TYPE_FN_FIELD_STATIC_P (f, j))
fprintf_filtered (stream, "static ");
if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
{
/* Keep GDB from crashing here. */
fprintf_filtered (stream, "<undefined type> %s;\n",
TYPE_FN_FIELD_PHYSNAME (f, j));
break;
}
else if (!is_constructor && !is_full_physname_constructor)
{
type_print (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
"", stream, -1);
fputs_filtered (" ", stream);
}
if (TYPE_FN_FIELD_STUB (f, j))
/* Build something we can demangle. */
mangled_name = gdb_mangle_name (type, i, j);
else
mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
demangled_name =
cplus_demangle (mangled_name,
DMGL_ANSI | DMGL_PARAMS | DMGL_JAVA);
if (demangled_name == NULL)
fprintf_filtered (stream, "<badly mangled name '%s'>",
mangled_name);
else
{
char *demangled_no_class = demangled_name;
char *ptr = demangled_name;
for ( ; ; )
{
char c = *ptr++;
if (c == 0 || c == '(')
break;
if (c == '.')
demangled_no_class = ptr;
}
fputs_filtered (demangled_no_class, stream);
free (demangled_name);
}
if (TYPE_FN_FIELD_STUB (f, j))
free (mangled_name);
fprintf_filtered (stream, ";\n");
}
}
fprintfi_filtered (level, stream, "}");
}
break;
default:
c_type_print_base (type, stream, show, level);
}
}
/* LEVEL is the depth to indent lines by. */
void
java_print_type (type, varstring, stream, show, level)
struct type *type;
char *varstring;
GDB_FILE *stream;
int show;
int level;
{
java_type_print_base (type, stream, show, level);
if (varstring != NULL && *varstring != '\0')
{
fputs_filtered (" ", stream);
fputs_filtered (varstring, stream);
}
#if 0
/* For demangled function names, we have the arglist as part of the name,
so don't print an additional pair of ()'s */
demangled_args = strchr(varstring, '(') != NULL;
c_type_print_varspec_suffix (type, stream, show, 0, demangled_args);
#endif
}
Reference in New Issue View Git Blame Copy Permalink