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Added some logging to STL synthetic children providers - this should help us catch problems; more logging might/will be added as needed 

llvm-svn: 153750
This commit is contained in:
Enrico Granata 2012-03-30 16:07:08 +00:00
parent 53190539db
commit 22fe3171ee
2 changed files with 20 additions and 2 deletions
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12
lldb/examples/synthetic/gnu_libstdcpp.py
View File

@ -89,6 +89,7 @@ class StdListSynthProvider:
def get_child_at_index(self,index):
logger = Logger.Logger()
logger >> "Fetching child " + str(index)
if index < 0:
return None;
if index >= self.num_children():
@ -190,6 +191,7 @@ class StdVectorSynthProvider:
def get_child_at_index(self,index):
logger = Logger.Logger()
logger >> "Retrieving child " + str(index)
if index < 0:
return None;
if index >= self.num_children():
@ -257,14 +259,20 @@ class StdMapSynthProvider:
map_type = self.valobj.GetType()
if map_type.IsReferenceType():
logger >> "Dereferencing type"
map_type = map_type.GetDereferencedType()
map_arg_0 = str(map_type.GetTemplateArgumentType(0).GetName())
map_arg_1 = str(map_type.GetTemplateArgumentType(1).GetName())
logger >> "map has args " + str(map_arg_0) + " and " + str(map_arg_1)
map_arg_0,fixed_0 = self.fixup_class_name(map_arg_0)
map_arg_1,fixed_1 = self.fixup_class_name(map_arg_1)
logger >> "arg_0 has become: " + str(map_arg_0) + " (fixed: " + str(fixed_0) + ")"
logger >> "arg_1 has become: " + str(map_arg_1) + " (fixed: " + str(fixed_1) + ")"
# HACK: this is related to the above issue with the typename for std::string
# being shortened by clang - the changes to typename display and searching to honor
# namespaces make it so that we go looking for std::pair<const std::basic_string<char>, ...>
@ -281,8 +289,12 @@ class StdMapSynthProvider:
else:
map_arg_type = map_arg_type + ">"
logger >> "final contents datatype is: " + str(map_arg_type)
self.data_type = self.valobj.GetTarget().FindFirstType(map_arg_type)
logger >> "and the SBType is: " + str(self.data_type)
# from libstdc++ implementation of _M_root for rbtree
self.Mroot = self.Mheader.GetChildMemberWithName('_M_parent')
self.data_size = self.data_type.GetByteSize()

10
lldb/examples/synthetic/libcxx.py
View File

@ -97,6 +97,7 @@ class stdvector_SynthProvider:
def get_child_at_index(self,index):
logger = Logger.Logger()
logger >> "Retrieving child " + str(index)
if index < 0:
return None;
if index >= self.num_children():
@ -272,6 +273,7 @@ class stdlist_SynthProvider:
def get_child_at_index(self,index):
logger = Logger.Logger()
logger >> "Fetching child " + str(index)
if index < 0:
return None;
if index >= self.num_children():
@ -509,11 +511,13 @@ class stdmap_SynthProvider:
def get_child_at_index(self,index):
logger = Logger.Logger()
logger >> "Retrieving child " + str(index)
if index < 0:
return None
if index >= self.num_children():
return None;
if self.garbage:
logger >> "Returning None since this tree is garbage"
return None
try:
iterator = stdmap_iterator(self.root_node,max_count=self.num_children())
@ -524,6 +528,7 @@ class stdmap_SynthProvider:
need_to_skip = (index > 0)
current = iterator.advance(index)
if current == None:
logger >> "Tree is garbage - returning None"
self.garbage = True
return None
if self.get_data_type():
@ -538,13 +543,14 @@ class stdmap_SynthProvider:
else:
# FIXME we need to have accessed item 0 before accessing any other item!
if self.skip_size == None:
logger >> "You asked for item > 0 before asking for item == 0, too bad - I have no clue"
return None
return current.CreateChildAtOffset('[' + str(index) + ']',self.skip_size,self.data_type)
else:
print "foo"
logger >> "Unable to infer data-type - returning None (should mark tree as garbage here?)"
return None
except Exception as err:
print err
logger >> "Hit an exception: " + str(err)
return None
# Just an example: the actual summary is produced by a summary string: size=${svar%#}