1 # Copyright 2014-2015 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(),
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