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# summary provider for class NSNotification
import objc_runtime
import metrics
import CFString
import lldb
statistics = metrics.Metrics()
statistics.add_metric('invalid_isa')
statistics.add_metric('invalid_pointer')
statistics.add_metric('unknown_class')
statistics.add_metric('code_notrun')
class NSConcreteNotification_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj, params):
self.valobj = valobj;
self.sys_params = params
if not (self.sys_params.types_cache.id):
self.sys_params.types_cache.id = self.valobj.GetType().GetBasicType(lldb.eBasicTypeObjCID)
self.update();
def update(self):
self.adjust_for_architecture();
# skip the ISA and go to the name pointer
def offset(self):
return self.sys_params.pointer_size
def name(self):
string_ptr = self.valobj.CreateChildAtOffset("name",
self.offset(),
self.sys_params.types_cache.id)
return CFString.CFString_SummaryProvider(string_ptr,None)
class NSNotificationUnknown_SummaryProvider:
def adjust_for_architecture(self):
pass
def __init__(self, valobj, params):
self.valobj = valobj;
self.sys_params = params
self.update()
def update(self):
self.adjust_for_architecture();
def name(self):
stream = lldb.SBStream()
self.valobj.GetExpressionPath(stream)
name_vo = self.valobj.CreateValueFromExpression("name","(NSString*)[" + stream.GetData() + " name]");
return CFString.CFString_SummaryProvider(name_vo,None)
def GetSummary_Impl(valobj):
global statistics
class_data = objc_runtime.ObjCRuntime(valobj)
if class_data.is_valid() == False:
statistics.metric_hit('invalid_pointer',valobj)
wrapper = None
return
class_data = class_data.read_class_data()
if class_data.is_valid() == False:
statistics.metric_hit('invalid_isa',valobj)
wrapper = None
return
if class_data.is_kvo():
class_data = class_data.get_superclass()
if class_data.is_valid() == False:
statistics.metric_hit('invalid_isa',valobj)
wrapper = None
return
name_string = class_data.class_name()
if name_string == 'NSConcreteNotification':
wrapper = NSConcreteNotification_SummaryProvider(valobj, class_data.sys_params)
statistics.metric_hit('code_notrun',valobj)
else:
wrapper = NSNotificationUnknown_SummaryProvider(valobj, class_data.sys_params)
statistics.metric_hit('unknown_class',str(valobj) + " seen as " + name_string)
return wrapper;
def NSNotification_SummaryProvider (valobj,dict):
provider = GetSummary_Impl(valobj);
if provider != None:
try:
summary = provider.name();
except:
summary = None
if summary == None:
summary = 'no valid notification here'
return str(summary)
return ''
def __lldb_init_module(debugger,dict):
debugger.HandleCommand("type summary add -F NSNotification.NSNotification_SummaryProvider NSNotification")
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