solenv/gdb/boost/smart_ptr.py

   1 # -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
   2 # GDB pretty printers for Boost.Smart Ptr.
   3 #
   4 # Copyright (C) 2012 Red Hat, Inc., David Tardon <dtardon@redhat.com>
   5 #
   6 # This file is part of boost-gdb-printers.
   7 #
   8 # This program is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17 #
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 import gdb
  22
  23 import boost.util.printing as printing
  24
  25
  26 class SmartPtrPrinter:
  27     """Prints smart pointers based on Boost.SmartPtr"""
  28
  29     def __init__(self, typename, value):
  30         self.typename = typename
  31         self.value = value
  32
  33     def to_string(self):
  34         if self.value['px']:
  35             return "%s %s" % (self.typename, self.value['px'].dereference())
  36         else:
  37             return "empty %s" % (self.typename,)
  38
  39
  40 printer = None
  41
  42 def build_pretty_printers():
  43     global printer
  44
  45     if printer != None:
  46         return
  47
  48     printer = printing.Printer("boost.smart_ptr")
  49
  50     printer.add('boost::shared_ptr', SmartPtrPrinter)
  51     # printer.add('boost::shared_array', SmartPtrPrinter)
  52     printer.add('boost::weak_ptr', SmartPtrPrinter)
  53     printer.add('boost::scoped_ptr', SmartPtrPrinter)
  54     # printer.add('boost::scoped_array', SmartPtrPrinter)
  55
  56 def register_pretty_printers(obj):
  57     printing.register_pretty_printer(printer, obj)
  58
  59 build_pretty_printers()
  60
  61 # vim:set filetype=python shiftwidth=4 softtabstop=4 expandtab: