1# Copyright (C) 2008-2021 Free Software Foundation, Inc.
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# This file is part of the GDB testsuite.  It tests python pretty
17# printers.
18
19import gdb
20
21
22class PointPrinter(object):
23    def __init__(self, val):
24        self.val = val
25
26    def to_string(self):
27        return "Pretty Point (%s, %s)" % (self.val["x"], self.val["y"])
28
29
30def test_lookup_function(val):
31    "Look-up and return a pretty-printer that can print val."
32
33    # Get the type.
34    type = val.type
35
36    # If it points to a reference, get the reference.
37    if type.code == gdb.TYPE_CODE_REF:
38        type = type.target()
39
40    # Get the unqualified type, stripped of typedefs.
41    type = type.unqualified().strip_typedefs()
42
43    # Get the type name.
44    typename = type.tag
45
46    if typename == "point":
47        return PointPrinter(val)
48
49    return None
50
51
52gdb.pretty_printers.append(test_lookup_function)
53