/* YACC parser for Ada expressions, for GDB.
- Copyright (C) 1986, 1989, 1990, 1991, 1993, 1994, 1997, 2000, 2003, 2004,
- 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 1986-2014 Free Software Foundation, Inc.
-This file is part of GDB.
+ 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 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 3 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.
+ 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., 51 Franklin Street, Fifth Floor,
-Boston, MA 02110-1301, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Parse an Ada expression from text in a string,
and return the result as a struct expression pointer.
%{
#include "defs.h"
-#include "gdb_string.h"
+#include <string.h>
#include <ctype.h>
#include "expression.h"
#include "value.h"
#define yytoks ada_toks /* With YYDEBUG defined */
#define yyname ada_name /* With YYDEBUG defined */
#define yyrule ada_rule /* With YYDEBUG defined */
+#define yyss ada_yyss
+#define yysslim ada_yysslim
+#define yyssp ada_yyssp
+#define yystacksize ada_yystacksize
+#define yyvs ada_yyvs
+#define yyvsp ada_yyvsp
#ifndef YYDEBUG
#define YYDEBUG 1 /* Default to yydebug support */
void yyerror (char *);
-static struct stoken string_to_operator (struct stoken);
-
static void write_int (LONGEST, struct type *);
-static void write_object_renaming (struct block *, const char *, int,
+static void write_object_renaming (const struct block *, const char *, int,
const char *, int);
-static struct type* write_var_or_type (struct block *, struct stoken);
+static struct type* write_var_or_type (const struct block *, struct stoken);
static void write_name_assoc (struct stoken);
static void write_exp_op_with_string (enum exp_opcode, struct stoken);
-static struct block *block_lookup (struct block *, char *);
+static struct block *block_lookup (struct block *, const char *);
static LONGEST convert_char_literal (struct type *, LONGEST);
-static void write_ambiguous_var (struct block *, char *, int);
+static void write_ambiguous_var (const struct block *, char *, int);
static struct type *type_int (void);
error (_("Error in expression, near `%s'."), lexptr);
}
-/* The operator name corresponding to operator symbol STRING (adds
- quotes and maps to lower-case). Destroys the previous contents of
- the array pointed to by STRING.ptr. Error if STRING does not match
- a valid Ada operator. Assumes that STRING.ptr points to a
- null-terminated string and that, if STRING is a valid operator
- symbol, the array pointed to by STRING.ptr contains at least
- STRING.length+3 characters. */
-
-static struct stoken
-string_to_operator (struct stoken string)
-{
- int i;
-
- for (i = 0; ada_opname_table[i].encoded != NULL; i += 1)
- {
- if (string.length == strlen (ada_opname_table[i].decoded)-2
- && strncasecmp (string.ptr, ada_opname_table[i].decoded+1,
- string.length) == 0)
- {
- strncpy (string.ptr, ada_opname_table[i].decoded,
- string.length+2);
- string.length += 2;
- return string;
- }
- }
- error (_("Invalid operator symbol `%s'"), string.ptr);
-}
-
/* Emit expression to access an instance of SYM, in block BLOCK (if
* non-NULL), and with :: qualification ORIG_LEFT_CONTEXT. */
static void
-write_var_from_sym (struct block *orig_left_context,
- struct block *block,
+write_var_from_sym (const struct block *orig_left_context,
+ const struct block *block,
struct symbol *sym)
{
if (orig_left_context == NULL && symbol_read_needs_frame (sym))
* new encoding entirely (FIXME pnh 7/20/2007). */
static void
-write_object_renaming (struct block *orig_left_context,
+write_object_renaming (const struct block *orig_left_context,
const char *renamed_entity, int renamed_entity_len,
const char *renaming_expr, int max_depth)
{
char *name;
enum { SIMPLE_INDEX, LOWER_BOUND, UPPER_BOUND } slice_state;
- struct symbol *sym;
- struct block *block;
+ struct ada_symbol_info sym_info;
if (max_depth <= 0)
error (_("Could not find renamed symbol"));
if (orig_left_context == NULL)
orig_left_context = get_selected_block (NULL);
- name = obsavestring (renamed_entity, renamed_entity_len, &temp_parse_space);
- sym = ada_lookup_encoded_symbol (name, orig_left_context, VAR_DOMAIN,
- &block);
- if (sym == NULL)
+ name = obstack_copy0 (&temp_parse_space, renamed_entity, renamed_entity_len);
+ ada_lookup_encoded_symbol (name, orig_left_context, VAR_DOMAIN, &sym_info);
+ if (sym_info.sym == NULL)
error (_("Could not find renamed variable: %s"), ada_decode (name));
- else if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
+ else if (SYMBOL_CLASS (sym_info.sym) == LOC_TYPEDEF)
/* We have a renaming of an old-style renaming symbol. Don't
trust the block information. */
- block = orig_left_context;
+ sym_info.block = orig_left_context;
{
const char *inner_renamed_entity;
int inner_renamed_entity_len;
const char *inner_renaming_expr;
- switch (ada_parse_renaming (sym, &inner_renamed_entity,
+ switch (ada_parse_renaming (sym_info.sym, &inner_renamed_entity,
&inner_renamed_entity_len,
&inner_renaming_expr))
{
case ADA_NOT_RENAMING:
- write_var_from_sym (orig_left_context, block, sym);
+ write_var_from_sym (orig_left_context, sym_info.block, sym_info.sym);
break;
case ADA_OBJECT_RENAMING:
- write_object_renaming (block,
+ write_object_renaming (sym_info.block,
inner_renamed_entity, inner_renamed_entity_len,
inner_renaming_expr, max_depth - 1);
break;
break;
case 'L':
slice_state = LOWER_BOUND;
+ /* FALLTHROUGH */
case 'S':
renaming_expr += 1;
if (isdigit (*renaming_expr))
{
const char *end;
char *index_name;
- struct symbol *index_sym;
+ struct ada_symbol_info index_sym_info;
end = strchr (renaming_expr, 'X');
if (end == NULL)
end = renaming_expr + strlen (renaming_expr);
index_name =
- obsavestring (renaming_expr, end - renaming_expr,
- &temp_parse_space);
+ obstack_copy0 (&temp_parse_space, renaming_expr,
+ end - renaming_expr);
renaming_expr = end;
- index_sym = ada_lookup_encoded_symbol (index_name, NULL,
- VAR_DOMAIN, &block);
- if (index_sym == NULL)
+ ada_lookup_encoded_symbol (index_name, NULL, VAR_DOMAIN,
+ &index_sym_info);
+ if (index_sym_info.sym == NULL)
error (_("Could not find %s"), index_name);
- else if (SYMBOL_CLASS (index_sym) == LOC_TYPEDEF)
+ else if (SYMBOL_CLASS (index_sym_info.sym) == LOC_TYPEDEF)
/* Index is an old-style renaming symbol. */
- block = orig_left_context;
- write_var_from_sym (NULL, block, index_sym);
+ index_sym_info.block = orig_left_context;
+ write_var_from_sym (NULL, index_sym_info.block,
+ index_sym_info.sym);
}
if (slice_state == SIMPLE_INDEX)
{
{
struct stoken field_name;
const char *end;
+ char *buf;
+
renaming_expr += 1;
if (slice_state != SIMPLE_INDEX)
if (end == NULL)
end = renaming_expr + strlen (renaming_expr);
field_name.length = end - renaming_expr;
- field_name.ptr = malloc (end - renaming_expr + 1);
- strncpy (field_name.ptr, renaming_expr, end - renaming_expr);
- field_name.ptr[end - renaming_expr] = '\000';
+ buf = malloc (end - renaming_expr + 1);
+ field_name.ptr = buf;
+ strncpy (buf, renaming_expr, end - renaming_expr);
+ buf[end - renaming_expr] = '\000';
renaming_expr = end;
write_exp_op_with_string (STRUCTOP_STRUCT, field_name);
break;
}
static struct block*
-block_lookup (struct block *context, char *raw_name)
+block_lookup (struct block *context, const char *raw_name)
{
- char *name;
+ const char *name;
struct ada_symbol_info *syms;
int nsyms;
struct symtab *symtab;
name = ada_encode (raw_name);
nsyms = ada_lookup_symbol_list (name, context, VAR_DOMAIN, &syms);
- if (context == NULL &&
- (nsyms == 0 || SYMBOL_CLASS (syms[0].sym) != LOC_BLOCK))
+ if (context == NULL
+ && (nsyms == 0 || SYMBOL_CLASS (syms[0].sym) != LOC_BLOCK))
symtab = lookup_symtab (name);
else
symtab = NULL;
{
/* Check to see if we have a regular definition of this
type that just didn't happen to have been read yet. */
- int ntypes;
struct symbol *sym;
char *expanded_name =
(char *) alloca (strlen (name) + sizeof ("standard__"));
a temporary symbol that is valid until the next call to ada_parse.
*/
static void
-write_ambiguous_var (struct block *block, char *name, int len)
+write_ambiguous_var (const struct block *block, char *name, int len)
{
struct symbol *sym =
obstack_alloc (&temp_parse_space, sizeof (struct symbol));
memset (sym, 0, sizeof (struct symbol));
SYMBOL_DOMAIN (sym) = UNDEF_DOMAIN;
- SYMBOL_LINKAGE_NAME (sym) = obsavestring (name, len, &temp_parse_space);
+ SYMBOL_LINKAGE_NAME (sym) = obstack_copy0 (&temp_parse_space, name, len);
SYMBOL_LANGUAGE (sym) = language_ada;
write_exp_elt_opcode (OP_VAR_VALUE);
if (type == NULL || field_name == NULL)
return NULL;
+ type = check_typedef (type);
while (field_name[0] != '\0')
{
identifier). */
static struct type*
-write_var_or_type (struct block *block, struct stoken name0)
+write_var_or_type (const struct block *block, struct stoken name0)
{
int depth;
char *encoded_name;
encoded_name = ada_encode (name0.ptr);
name_len = strlen (encoded_name);
- encoded_name = obsavestring (encoded_name, name_len, &temp_parse_space);
+ encoded_name = obstack_copy0 (&temp_parse_space, encoded_name, name_len);
for (depth = 0; depth < MAX_RENAMING_CHAIN_LENGTH; depth += 1)
{
int tail_index;
FIXME pnh 7/20/2007. */
if (nsyms == 1)
{
- struct symbol *renaming =
- ada_find_renaming_symbol (SYMBOL_LINKAGE_NAME (syms[0].sym),
- syms[0].block);
+ struct symbol *ren_sym =
+ ada_find_renaming_symbol (syms[0].sym, syms[0].block);
- if (renaming != NULL)
- syms[0].sym = renaming;
+ if (ren_sym != NULL)
+ syms[0].sym = ren_sym;
}
type_sym = select_possible_type_sym (syms, nsyms);
}
else if (nsyms == 0)
{
- int i;
- struct minimal_symbol *msym
+ struct bound_minimal_symbol msym
= ada_lookup_simple_minsym (encoded_name);
- if (msym != NULL)
+ if (msym.minsym != NULL)
{
write_exp_msymbol (msym);
/* Maybe cause error here rather than later? FIXME? */
char name[7];
int f;
- if (type == NULL || TYPE_CODE (type) != TYPE_CODE_ENUM)
+ if (type == NULL)
return val;
- sprintf (name, "QU%02x", (int) val);
+ type = check_typedef (type);
+ if (TYPE_CODE (type) != TYPE_CODE_ENUM)
+ return val;
+
+ xsnprintf (name, sizeof (name), "QU%02x", (int) val);
for (f = 0; f < TYPE_NFIELDS (type); f += 1)
{
if (strcmp (name, TYPE_FIELD_NAME (type, f)) == 0)
- return TYPE_FIELD_BITPOS (type, f);
+ return TYPE_FIELD_ENUMVAL (type, f);
}
return val;
}
return type != NULL ? type : parse_type->builtin_data_ptr;
}
+/* Provide a prototype to silence -Wmissing-prototypes. */
+extern initialize_file_ftype _initialize_ada_exp;
+
void
_initialize_ada_exp (void)
{
obstack_init (&temp_parse_space);
}
-
-/* FIXME: hilfingr/2004-10-05: Hack to remove warning. The function
- string_to_operator is supposed to be used for cases where one
- calls an operator function with prefix notation, as in
- "+" (a, b), but at some point, this code seems to have gone
- missing. */
-
-struct stoken (*dummy_string_to_ada_operator) (struct stoken)
- = string_to_operator;
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