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3666a048 | 1 | # Copyright (C) 2018-2021 Free Software Foundation, Inc. |
5abe0f0c JV |
2 | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | import sys | |
17 | import gdb | |
18 | import gdb.types | |
19 | ||
20 | # Following is for Python 3 compatibility... | |
21 | if sys.version_info[0] > 2: | |
22 | long = int | |
23 | ||
24 | ||
25 | class cons_pp(object): | |
26 | def __init__(self, val): | |
27 | self._val = val | |
28 | ||
29 | def to_string(self): | |
30 | if long(self._val) == 0: | |
31 | return "nil" | |
32 | elif long(self._val['type']) == 0: | |
33 | return "( . )" | |
34 | else: | |
35 | return "%d" % self._val['atom']['ival'] | |
36 | ||
37 | def children(self): | |
38 | if long(self._val) == 0: | |
39 | return [] | |
40 | elif long(self._val['type']) == 0: | |
41 | return [ | |
42 | ('atom', self._val['atom']) | |
43 | ] | |
44 | else: | |
45 | return [ | |
46 | ('car' , self._val["slots"][0]), | |
47 | ('cdr' , self._val["slots"][1]), | |
48 | ] | |
49 | ||
50 | def cons_pp_lookup(val): | |
51 | if str(val.type) == 'struct cons *': | |
52 | return cons_pp(val) | |
53 | else: | |
54 | return None | |
55 | ||
56 | del gdb.pretty_printers[1:] | |
57 | gdb.pretty_printers.append(cons_pp_lookup) |