Hello,
Attached is a patch which adds xmethods for the associative containers
(set, map, multiset and multimap) and their unordered versions. I
think the GDB Python API is not rich enough to implement xmethods for
the more interesting methods like find, count etc. The attached patch
only implements xmethods for size and empty. That way, it is a fairly
straightforward patch.
libstdc++-v3/ChangeLog:
2014-11-09 Siva Chandra Reddy sivachan...@google.com
* python/libstdcxx/v6/xmethods.py: Add xmethods for associative
containers.
* testsuite/libstdc++-xmethods/associative-containers.cc: New
file.
diff --git a/libstdc++-v3/python/libstdcxx/v6/xmethods.py
b/libstdc++-v3/python/libstdcxx/v6/xmethods.py
index 6af1c95..2198411 100644
--- a/libstdc++-v3/python/libstdcxx/v6/xmethods.py
+++ b/libstdc++-v3/python/libstdcxx/v6/xmethods.py
@@ -422,6 +422,50 @@ class VectorMethodsMatcher(gdb.xmethod.XMethodMatcher):
return None
return method.worker_class(class_type.template_argument(0))
+# Xmethods for associative containers
+
+class AssociativeContainerWorkerBase(gdb.xmethod.XMethodWorker):
+def __init__(self, unordered):
+self._unordered = unordered
+
+def node_count(self, obj):
+if self._unordered:
+return obj['_M_h']['_M_element_count']
+else:
+return obj['_M_t']['_M_impl']['_M_node_count']
+
+def get_arg_types(self):
+return None
+
+class AssociativeContainerEmptyWorker(AssociativeContainerWorkerBase):
+def __call__(self, obj):
+return int(self.node_count(obj)) == 0
+
+class AssociativeContainerSizeWorker(AssociativeContainerWorkerBase):
+def __call__(self, obj):
+return self.node_count(obj)
+
+class AssociativeContainerMethodsMatcher(gdb.xmethod.XMethodMatcher):
+def __init__(self, name):
+gdb.xmethod.XMethodMatcher.__init__(self,
+matcher_name_prefix + name)
+self._name = name
+self._method_dict = {
+'size': LibStdCxxXMethod('size', AssociativeContainerSizeWorker),
+'empty': LibStdCxxXMethod('empty',
+ AssociativeContainerEmptyWorker),
+}
+self.methods = [self._method_dict[m] for m in self._method_dict]
+
+def match(self, class_type, method_name):
+if not re.match('^std::%s.*$' % self._name, class_type.tag):
+return None
+method = self._method_dict.get(method_name)
+if method is None or not method.enabled:
+return None
+unordered = 'unordered' in self._name
+return method.worker_class(unordered)
+
# Xmethods for std::unique_ptr
class UniquePtrGetWorker(gdb.xmethod.XMethodWorker):
@@ -465,4 +509,20 @@ def register_libstdcxx_xmethods(locus):
gdb.xmethod.register_xmethod_matcher(locus, DequeMethodsMatcher())
gdb.xmethod.register_xmethod_matcher(locus, ListMethodsMatcher())
gdb.xmethod.register_xmethod_matcher(locus, VectorMethodsMatcher())
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('set'))
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('map'))
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('multiset'))
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('multimap'))
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('unordered_set'))
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('unordered_map'))
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('unordered_multiset'))
+gdb.xmethod.register_xmethod_matcher(
+locus, AssociativeContainerMethodsMatcher('unordered_multimap'))
gdb.xmethod.register_xmethod_matcher(locus, UniquePtrMethodsMatcher())
diff --git
a/libstdc++-v3/testsuite/libstdc++-xmethods/associative-containers.cc
b/libstdc++-v3/testsuite/libstdc++-xmethods/associative-containers.cc
new file mode 100644
index 000..7949f22
--- /dev/null
+++ b/libstdc++-v3/testsuite/libstdc++-xmethods/associative-containers.cc
@@ -0,0 +1,79 @@
+// { dg-do run }
+// { dg-options -std=gnu++11 -g -O0 }
+
+// Copyright (C) 2014 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library 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, or (at your option)
+// any later version.
+
+// This library 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
