1 # Copyright 2014 Free Software Foundation, Inc.
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.
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.
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/>.
16 # This file is part of the GDB testsuite. It test the xmethods support
17 # in the Python extension language.
22 from gdb.xmethod import XMethod
23 from gdb.xmethod import XMethodMatcher, XMethodWorker
24 from gdb.xmethod import SimpleXMethodMatcher
27 def A_plus_A(obj, opr):
28 print('From Python <A_plus_A>:')
29 return obj['a'] + opr['a']
33 print('From Python <plus_plus_A>:')
38 print('From Python <A_geta>:')
42 def A_getarrayind(obj, index):
43 print('From Python <A_getarrayind>:')
44 return obj['array'][index]
47 type_A = gdb.parse_and_eval('(dop::A *) 0').type.target()
48 type_B = gdb.parse_and_eval('(dop::B *) 0').type.target()
49 type_int = gdb.parse_and_eval('(int *) 0').type.target()
52 # The E class matcher and worker test two things:
53 # 1. xmethod returning None.
54 # 2. Matcher returning a list of workers.
56 class E_method_char_worker(XMethodWorker):
60 def get_arg_types(self):
61 return gdb.lookup_type('char')
63 def __call__(self, obj, arg):
64 print('From Python <E_method_char>')
68 class E_method_int_worker(XMethodWorker):
72 def get_arg_types(self):
73 return gdb.lookup_type('int')
75 def __call__(self, obj, arg):
76 print('From Python <E_method_int>')
80 class E_method_matcher(XMethodMatcher):
82 XMethodMatcher.__init__(self, 'E_methods')
83 self.methods = [XMethod('method_int'), XMethod('method_char')]
85 def match(self, class_type, method_name):
86 class_tag = class_type.unqualified().tag
87 if not re.match('^dop::E$', class_tag):
89 if not re.match('^method$', method_name):
92 if self.methods[0].enabled:
93 workers.append(E_method_int_worker())
94 if self.methods[1].enabled:
95 workers.append(E_method_char_worker())
99 # The G class method matcher and worker illustrate how to write
100 # xmethod matchers and workers for template classes and template
103 class G_size_diff_worker(XMethodWorker):
104 def __init__(self, class_template_type, method_template_type):
105 self._class_template_type = class_template_type
106 self._method_template_type = method_template_type
108 def get_arg_types(self):
111 def __call__(self, obj):
112 print('From Python G<>::size_diff()')
113 return (self._method_template_type.sizeof -
114 self._class_template_type.sizeof)
117 class G_size_mul_worker(XMethodWorker):
118 def __init__(self, class_template_type, method_template_val):
119 self._class_template_type = class_template_type
120 self._method_template_val = method_template_val
122 def get_arg_types(self):
125 def __call__(self, obj):
126 print('From Python G<>::size_mul()')
127 return self._class_template_type.sizeof * self._method_template_val
130 class G_mul_worker(XMethodWorker):
131 def __init__(self, class_template_type, method_template_type):
132 self._class_template_type = class_template_type
133 self._method_template_type = method_template_type
135 def get_arg_types(self):
136 return self._method_template_type
138 def __call__(self, obj, arg):
139 print('From Python G<>::mul()')
140 return obj['t'] * arg
143 class G_methods_matcher(XMethodMatcher):
145 XMethodMatcher.__init__(self, 'G_methods')
146 self.methods = [XMethod('size_diff'),
150 def _is_enabled(self, name):
151 for method in self.methods:
152 if method.name == name and method.enabled:
155 def match(self, class_type, method_name):
156 class_tag = class_type.unqualified().tag
157 if not re.match('^dop::G<[ ]*[_a-zA-Z][ _a-zA-Z0-9]*>$',
160 t_name = class_tag[7:-1]
162 t_type = gdb.lookup_type(t_name)
165 if re.match('^size_diff<[ ]*[_a-zA-Z][ _a-zA-Z0-9]*>$', method_name):
166 if not self._is_enabled('size_diff'):
168 t1_name = method_name[10:-1]
170 t1_type = gdb.lookup_type(t1_name)
171 return G_size_diff_worker(t_type, t1_type)
174 if re.match('^size_mul<[ ]*[0-9]+[ ]*>$', method_name):
175 if not self._is_enabled('size_mul'):
177 m_val = int(method_name[9:-1])
178 return G_size_mul_worker(t_type, m_val)
179 if re.match('^mul<[ ]*[_a-zA-Z][ _a-zA-Z0-9]*>$', method_name):
180 if not self._is_enabled('mul'):
182 t1_name = method_name[4:-1]
184 t1_type = gdb.lookup_type(t1_name)
185 return G_mul_worker(t_type, t1_type)
191 SimpleXMethodMatcher('A_plus_A',
195 # This is a replacement, hence match the arg type
197 type_A.const().reference()),
198 SimpleXMethodMatcher('plus_plus_A',
202 SimpleXMethodMatcher('A_geta',
206 SimpleXMethodMatcher('A_getarrayind',
213 for matcher in global_dm_list:
214 gdb.xmethod.register_xmethod_matcher(gdb, matcher)
215 gdb.xmethod.register_xmethod_matcher(gdb.current_progspace(),
217 gdb.xmethod.register_xmethod_matcher(gdb.current_progspace(),