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4c38e0a4 | 1 | # Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. |
a6bac58e TT |
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 | ||
19 | import re | |
20 | ||
21 | # Test returning a Value from a printer. | |
22 | class string_print: | |
23 | def __init__(self, val): | |
24 | self.val = val | |
25 | ||
26 | def to_string(self): | |
27 | return self.val['whybother']['contents'] | |
28 | ||
29 | # Test a class-based printer. | |
30 | class ContainerPrinter: | |
31 | class _iterator: | |
32 | def __init__ (self, pointer, len): | |
33 | self.start = pointer | |
34 | self.pointer = pointer | |
35 | self.end = pointer + len | |
36 | ||
37 | def __iter__(self): | |
38 | return self | |
39 | ||
40 | def next(self): | |
41 | if self.pointer == self.end: | |
42 | raise StopIteration | |
43 | result = self.pointer | |
44 | self.pointer = self.pointer + 1 | |
45 | return ('[%d]' % int (result - self.start), result.dereference()) | |
46 | ||
47 | def __init__(self, val): | |
48 | self.val = val | |
49 | ||
50 | def to_string(self): | |
51 | return 'container %s with %d elements' % (self.val['name'], self.val['len']) | |
52 | ||
53 | def children(self): | |
54 | return self._iterator(self.val['elements'], self.val['len']) | |
55 | ||
79f283fe PM |
56 | # Test a printer where to_string is None |
57 | class NoStringContainerPrinter: | |
58 | class _iterator: | |
59 | def __init__ (self, pointer, len): | |
60 | self.start = pointer | |
61 | self.pointer = pointer | |
62 | self.end = pointer + len | |
63 | ||
64 | def __iter__(self): | |
65 | return self | |
66 | ||
67 | def next(self): | |
68 | if self.pointer == self.end: | |
69 | raise StopIteration | |
70 | result = self.pointer | |
71 | self.pointer = self.pointer + 1 | |
72 | return ('[%d]' % int (result - self.start), result.dereference()) | |
73 | ||
74 | def __init__(self, val): | |
75 | self.val = val | |
76 | ||
77 | def to_string(self): | |
78 | return None | |
79 | ||
80 | def children(self): | |
81 | return self._iterator(self.val['elements'], self.val['len']) | |
82 | ||
a6bac58e TT |
83 | class pp_s: |
84 | def __init__(self, val): | |
85 | self.val = val | |
86 | ||
87 | def to_string(self): | |
88 | a = self.val["a"] | |
89 | b = self.val["b"] | |
90 | if a.address != b: | |
91 | raise Exception("&a(%s) != b(%s)" % (str(a.address), str(b))) | |
92 | return " a=<" + str(self.val["a"]) + "> b=<" + str(self.val["b"]) + ">" | |
93 | ||
94 | class pp_ss: | |
95 | def __init__(self, val): | |
96 | self.val = val | |
97 | ||
98 | def to_string(self): | |
99 | return "a=<" + str(self.val["a"]) + "> b=<" + str(self.val["b"]) + ">" | |
100 | ||
101 | class pp_sss: | |
102 | def __init__(self, val): | |
103 | self.val = val | |
104 | ||
105 | def to_string(self): | |
106 | return "a=<" + str(self.val['a']) + "> b=<" + str(self.val["b"]) + ">" | |
107 | ||
108 | class pp_multiple_virtual: | |
109 | def __init__ (self, val): | |
110 | self.val = val | |
111 | ||
112 | def to_string (self): | |
113 | return "pp value variable is: " + str (self.val['value']) | |
114 | ||
115 | class pp_vbase1: | |
116 | def __init__ (self, val): | |
117 | self.val = val | |
118 | ||
119 | def to_string (self): | |
120 | return "pp class name: " + self.val.type.tag | |
121 | ||
0cc7d26f TT |
122 | class pp_nullstr: |
123 | def __init__(self, val): | |
124 | self.val = val | |
125 | ||
126 | def to_string(self): | |
f870a310 | 127 | return self.val['s'].string(gdb.target_charset()) |
0cc7d26f | 128 | |
fbb8f299 PM |
129 | class pp_ns: |
130 | "Print a std::basic_string of some kind" | |
131 | ||
132 | def __init__(self, val): | |
133 | self.val = val | |
134 | ||
135 | def to_string(self): | |
136 | len = self.val['length'] | |
f870a310 | 137 | return self.val['null_str'].string (gdb.target_charset(), length = len) |
fbb8f299 PM |
138 | |
139 | def display_hint (self): | |
140 | return 'string' | |
141 | ||
be759fcf PM |
142 | class pp_ls: |
143 | "Print a std::basic_string of some kind" | |
144 | ||
145 | def __init__(self, val): | |
146 | self.val = val | |
147 | ||
148 | def to_string(self): | |
149 | return self.val['lazy_str'].lazy_string() | |
150 | ||
151 | def display_hint (self): | |
152 | return 'string' | |
153 | ||
0cc7d26f TT |
154 | class pp_outer: |
155 | "Print struct outer" | |
156 | ||
157 | def __init__ (self, val): | |
158 | self.val = val | |
159 | ||
160 | def to_string (self): | |
161 | return "x = %s" % self.val['x'] | |
162 | ||
163 | def children (self): | |
164 | yield 's', self.val['s'] | |
165 | yield 'x', self.val['x'] | |
166 | ||
a6bac58e TT |
167 | def lookup_function (val): |
168 | "Look-up and return a pretty-printer that can print val." | |
169 | ||
170 | # Get the type. | |
0cc7d26f | 171 | type = val.type |
a6bac58e TT |
172 | |
173 | # If it points to a reference, get the reference. | |
174 | if type.code == gdb.TYPE_CODE_REF: | |
175 | type = type.target () | |
176 | ||
177 | # Get the unqualified type, stripped of typedefs. | |
178 | type = type.unqualified ().strip_typedefs () | |
179 | ||
180 | # Get the type name. | |
181 | typename = type.tag | |
182 | ||
183 | if typename == None: | |
184 | return None | |
185 | ||
186 | # Iterate over local dictionary of types to determine | |
187 | # if a printer is registered for that type. Return an | |
188 | # instantiation of the printer if found. | |
189 | for function in pretty_printers_dict: | |
190 | if function.match (typename): | |
191 | return pretty_printers_dict[function] (val) | |
192 | ||
193 | # Cannot find a pretty printer. Return None. | |
194 | ||
195 | return None | |
196 | ||
967cf477 DE |
197 | def disable_lookup_function (): |
198 | lookup_function.enabled = False | |
199 | ||
200 | def enable_lookup_function (): | |
201 | lookup_function.enabled = True | |
a6bac58e TT |
202 | |
203 | def register_pretty_printers (): | |
204 | pretty_printers_dict[re.compile ('^struct s$')] = pp_s | |
205 | pretty_printers_dict[re.compile ('^s$')] = pp_s | |
206 | pretty_printers_dict[re.compile ('^S$')] = pp_s | |
207 | ||
208 | pretty_printers_dict[re.compile ('^struct ss$')] = pp_ss | |
209 | pretty_printers_dict[re.compile ('^ss$')] = pp_ss | |
210 | pretty_printers_dict[re.compile ('^const S &$')] = pp_s | |
211 | pretty_printers_dict[re.compile ('^SSS$')] = pp_sss | |
212 | ||
213 | pretty_printers_dict[re.compile ('^VirtualTest$')] = pp_multiple_virtual | |
214 | pretty_printers_dict[re.compile ('^Vbase1$')] = pp_vbase1 | |
0cc7d26f TT |
215 | |
216 | pretty_printers_dict[re.compile ('^struct nullstr$')] = pp_nullstr | |
217 | pretty_printers_dict[re.compile ('^nullstr$')] = pp_nullstr | |
a6bac58e TT |
218 | |
219 | # Note that we purposely omit the typedef names here. | |
220 | # Printer lookup is based on canonical name. | |
221 | # However, we do need both tagged and untagged variants, to handle | |
222 | # both the C and C++ cases. | |
223 | pretty_printers_dict[re.compile ('^struct string_repr$')] = string_print | |
224 | pretty_printers_dict[re.compile ('^struct container$')] = ContainerPrinter | |
79f283fe | 225 | pretty_printers_dict[re.compile ('^struct justchildren$')] = NoStringContainerPrinter |
a6bac58e TT |
226 | pretty_printers_dict[re.compile ('^string_repr$')] = string_print |
227 | pretty_printers_dict[re.compile ('^container$')] = ContainerPrinter | |
79f283fe | 228 | pretty_printers_dict[re.compile ('^justchildren$')] = NoStringContainerPrinter |
a6bac58e | 229 | |
fbb8f299 PM |
230 | pretty_printers_dict[re.compile ('^struct ns$')] = pp_ns |
231 | pretty_printers_dict[re.compile ('^ns$')] = pp_ns | |
0cc7d26f | 232 | |
be759fcf PM |
233 | pretty_printers_dict[re.compile ('^struct lazystring$')] = pp_ls |
234 | pretty_printers_dict[re.compile ('^lazystring$')] = pp_ls | |
235 | ||
0cc7d26f TT |
236 | pretty_printers_dict[re.compile ('^struct outerstruct$')] = pp_outer |
237 | pretty_printers_dict[re.compile ('^outerstruct$')] = pp_outer | |
238 | ||
a6bac58e TT |
239 | pretty_printers_dict = {} |
240 | ||
241 | register_pretty_printers () | |
242 | gdb.pretty_printers.append (lookup_function) |