1 # Copyright (C) 2008, 2009, 2010, 2011 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 tests python pretty
21 # Test returning a Value from a printer.
23 def __init__(self, val):
27 return self.val['whybother']['contents']
29 # Test a class-based printer.
30 class ContainerPrinter:
32 def __init__ (self, pointer, len):
34 self.pointer = pointer
35 self.end = pointer + len
41 if self.pointer == self.end:
44 self.pointer = self.pointer + 1
45 return ('[%d]' % int (result - self.start), result.dereference())
47 def __init__(self, val):
51 return 'container %s with %d elements' % (self.val['name'], self.val['len'])
54 return self._iterator(self.val['elements'], self.val['len'])
56 # Flag to make NoStringContainerPrinter throw an exception.
57 exception_flag = False
59 # Test a printer where to_string is None
60 class NoStringContainerPrinter:
62 def __init__ (self, pointer, len):
64 self.pointer = pointer
65 self.end = pointer + len
71 if self.pointer == self.end:
74 raise gdb.MemoryError, 'hi bob'
76 self.pointer = self.pointer + 1
77 return ('[%d]' % int (result - self.start), result.dereference())
79 def __init__(self, val):
86 return self._iterator(self.val['elements'], self.val['len'])
89 def __init__(self, val):
96 raise Exception("&a(%s) != b(%s)" % (str(a.address), str(b)))
97 return " a=<" + str(self.val["a"]) + "> b=<" + str(self.val["b"]) + ">"
100 def __init__(self, val):
104 return "a=<" + str(self.val["a"]) + "> b=<" + str(self.val["b"]) + ">"
107 def __init__(self, val):
111 return "a=<" + str(self.val['a']) + "> b=<" + str(self.val["b"]) + ">"
113 class pp_multiple_virtual:
114 def __init__ (self, val):
117 def to_string (self):
118 return "pp value variable is: " + str (self.val['value'])
121 def __init__ (self, val):
124 def to_string (self):
125 return "pp class name: " + self.val.type.tag
128 def __init__(self, val):
132 return self.val['s'].string(gdb.target_charset())
135 "Print a std::basic_string of some kind"
137 def __init__(self, val):
141 len = self.val['length']
142 return self.val['null_str'].string (gdb.target_charset(), length = len)
144 def display_hint (self):
147 pp_ls_encoding = None
150 "Print a std::basic_string of some kind"
152 def __init__(self, val):
156 if pp_ls_encoding is not None:
157 return self.val['lazy_str'].lazy_string(encoding = pp_ls_encoding)
159 return self.val['lazy_str'].lazy_string()
161 def display_hint (self):
167 def __init__ (self, val):
170 def to_string (self):
171 return "x = %s" % self.val['x']
174 yield 's', self.val['s']
175 yield 'x', self.val['x']
177 def lookup_function (val):
178 "Look-up and return a pretty-printer that can print val."
183 # If it points to a reference, get the reference.
184 if type.code == gdb.TYPE_CODE_REF:
185 type = type.target ()
187 # Get the unqualified type, stripped of typedefs.
188 type = type.unqualified ().strip_typedefs ()
196 # Iterate over local dictionary of types to determine
197 # if a printer is registered for that type. Return an
198 # instantiation of the printer if found.
199 for function in pretty_printers_dict:
200 if function.match (typename):
201 return pretty_printers_dict[function] (val)
203 # Cannot find a pretty printer. Return None.
207 def disable_lookup_function ():
208 lookup_function.enabled = False
210 def enable_lookup_function ():
211 lookup_function.enabled = True
213 def register_pretty_printers ():
214 pretty_printers_dict[re.compile ('^struct s$')] = pp_s
215 pretty_printers_dict[re.compile ('^s$')] = pp_s
216 pretty_printers_dict[re.compile ('^S$')] = pp_s
218 pretty_printers_dict[re.compile ('^struct ss$')] = pp_ss
219 pretty_printers_dict[re.compile ('^ss$')] = pp_ss
220 pretty_printers_dict[re.compile ('^const S &$')] = pp_s
221 pretty_printers_dict[re.compile ('^SSS$')] = pp_sss
223 pretty_printers_dict[re.compile ('^VirtualTest$')] = pp_multiple_virtual
224 pretty_printers_dict[re.compile ('^Vbase1$')] = pp_vbase1
226 pretty_printers_dict[re.compile ('^struct nullstr$')] = pp_nullstr
227 pretty_printers_dict[re.compile ('^nullstr$')] = pp_nullstr
229 # Note that we purposely omit the typedef names here.
230 # Printer lookup is based on canonical name.
231 # However, we do need both tagged and untagged variants, to handle
232 # both the C and C++ cases.
233 pretty_printers_dict[re.compile ('^struct string_repr$')] = string_print
234 pretty_printers_dict[re.compile ('^struct container$')] = ContainerPrinter
235 pretty_printers_dict[re.compile ('^struct justchildren$')] = NoStringContainerPrinter
236 pretty_printers_dict[re.compile ('^string_repr$')] = string_print
237 pretty_printers_dict[re.compile ('^container$')] = ContainerPrinter
238 pretty_printers_dict[re.compile ('^justchildren$')] = NoStringContainerPrinter
240 pretty_printers_dict[re.compile ('^struct ns$')] = pp_ns
241 pretty_printers_dict[re.compile ('^ns$')] = pp_ns
243 pretty_printers_dict[re.compile ('^struct lazystring$')] = pp_ls
244 pretty_printers_dict[re.compile ('^lazystring$')] = pp_ls
246 pretty_printers_dict[re.compile ('^struct outerstruct$')] = pp_outer
247 pretty_printers_dict[re.compile ('^outerstruct$')] = pp_outer
249 pretty_printers_dict = {}
251 register_pretty_printers ()
252 gdb.pretty_printers.append (lookup_function)