1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
|
/* Modula 2 language support definitions for GDB, the GNU debugger.
Copyright (C) 1992-2023 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 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef M2_LANG_H
#define M2_LANG_H
struct type_print_options;
struct parser_state;
/* Defined in m2-typeprint.c */
extern void m2_print_type (struct type *, const char *, struct ui_file *, int,
int, const struct type_print_options *);
extern int m2_is_long_set (struct type *type);
extern int m2_is_unbounded_array (struct type *type);
extern int get_long_set_bounds (struct type *type, LONGEST *low,
LONGEST *high);
/* Modula-2 types */
struct builtin_m2_type
{
struct type *builtin_char = nullptr;
struct type *builtin_int = nullptr;
struct type *builtin_card = nullptr;
struct type *builtin_real = nullptr;
struct type *builtin_bool = nullptr;
};
/* Return the Modula-2 type table for the specified architecture. */
extern const struct builtin_m2_type *builtin_m2_type (struct gdbarch *gdbarch);
/* Class representing the M2 language. */
class m2_language : public language_defn
{
public:
m2_language ()
: language_defn (language_m2)
{ /* Nothing. */ }
/* See language.h. */
const char *name () const override
{ return "modula-2"; }
/* See language.h. */
const char *natural_name () const override
{ return "Modula-2"; }
/* See language.h. */
void language_arch_info (struct gdbarch *gdbarch,
struct language_arch_info *lai) const override;
/* See language.h. */
void print_type (struct type *type, const char *varstring,
struct ui_file *stream, int show, int level,
const struct type_print_options *flags) const override
{
m2_print_type (type, varstring, stream, show, level, flags);
}
/* See language.h. */
void value_print_inner (struct value *val, struct ui_file *stream,
int recurse,
const struct value_print_options *options) const override;
/* See language.h. */
int parser (struct parser_state *ps) const override;
/* See language.h. */
void emitchar (int ch, struct type *chtype,
struct ui_file *stream, int quoter) const override;
/* See language.h. */
void printchar (int ch, struct type *chtype,
struct ui_file *stream) const override;
/* See language.h. */
void printstr (struct ui_file *stream, struct type *elttype,
const gdb_byte *string, unsigned int length,
const char *encoding, int force_ellipses,
const struct value_print_options *options) const override;
/* See language.h. */
void print_typedef (struct type *type, struct symbol *new_symbol,
struct ui_file *stream) const override;
/* See language.h. */
bool is_string_type_p (struct type *type) const override
{
type = check_typedef (type);
if (type->code () == TYPE_CODE_ARRAY
&& type->length () > 0
&& type->target_type ()->length () > 0)
{
struct type *elttype = check_typedef (type->target_type ());
if (elttype->length () == 1
&& (elttype->code () == TYPE_CODE_INT
|| elttype->code () == TYPE_CODE_CHAR))
return true;
}
return false;
}
/* See language.h. */
bool c_style_arrays_p () const override
{ return false; }
/* See language.h. Despite not having C-style arrays, Modula-2 uses 0
for its string lower bounds. */
char string_lower_bound () const override
{ return 0; }
/* See language.h. */
bool range_checking_on_by_default () const override
{ return true; }
};
#endif /* M2_LANG_H */
|
