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Diffstat (limited to '')
-rw-r--r-- | solenv/gdb/boost/util/printing.py | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/solenv/gdb/boost/util/printing.py b/solenv/gdb/boost/util/printing.py new file mode 100644 index 000000000..1d5d0bac9 --- /dev/null +++ b/solenv/gdb/boost/util/printing.py @@ -0,0 +1,134 @@ +# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*- +# Printer interface adaptor. +# +# Copyright (C) 2012 Red Hat, Inc., David Tardon <dtardon@redhat.com> +# +# This file is part of boost-gdb-printers. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + + +from collections import Mapping +import gdb +import re +import six + +from boost.util.compatibility import use_gdb_printing + +class SimplePrinter(object): + + def __init__(self, name, function): + self.name = name + self.function = function + self.enabled = True + + def invoke(self, val): + if not self.enabled: + return None + return self.function(self.name, val) + +class NameLookup(Mapping): + + def __init__(self): + self.map = {} + self.name_regex = re.compile('^([\w:]+)(<.*>)?') + + def add(self, name, printer): + self.map[name] = printer + + def __len__(self): + return len(self.map) + + def __getitem__(self, type): + typename = self._basic_type(type) + if typename and typename in self.map: + return self.map[typename] + return None + + def __iter__(self): + return self.map + + def _basic_type(self, type): + basic_type = self.basic_type(type) + if basic_type: + match = self.name_regex.match(basic_type) + if match: + return match.group(1) + return None + + @staticmethod + def basic_type(type): + if type.code == gdb.TYPE_CODE_REF: + type = type.target() + type = type.unqualified().strip_typedefs() + return type.tag + +class FunctionLookup(Mapping): + + def __init__(self): + self.map = {} + + def add(self, test, printer): + self.map[test] = printer + + def __len__(self): + return len(self.map) + + def __getitem__(self, type): + for (test, printer) in six.iteritems(self.map): + if test(type): + return printer + return None + + def __iter__(self): + return self.map + +class Printer(object): + + def __init__(self, name): + self.name = name + self.subprinters = [] + self.name_lookup = NameLookup() + self.func_lookup = FunctionLookup() + self.enabled = True + + def add(self, name, function, lookup = None): + printer = SimplePrinter(name, function) + self.subprinters.append(printer) + if not lookup: + self.name_lookup.add(name, printer) + else: + self.func_lookup.add(lookup, printer) + + + def __call__(self, val): + printer = self.name_lookup[val.type] + if not printer: + printer = self.func_lookup[val.type] + + if printer: + return printer.invoke(val) + return None + +def register_pretty_printer(printer, obj): + '''Registers printer with objfile''' + + if use_gdb_printing: + gdb.printing.register_pretty_printer(obj, printer) + else: + if obj is None: + obj = gdb + obj.pretty_printers.append(printer) + +# vim:set filetype=python shiftwidth=4 softtabstop=4 expandtab: |