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"""
LLDB AppKit formatters
part of The LLVM Compiler Infrastructure
This file is distributed under the University of Illinois Open Source
License. See LICENSE.TXT for details.
"""
# example summary provider for NSNotification
# the real summary is now C++ code built into LLDB
import lldb.runtime.objc.objc_runtime
import lldb.formatters.metrics
import CFString
import lldb
import lldb.formatters.Logger
statistics = lldb.formatters.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):
logger = lldb.formatters.Logger.Logger()
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):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture()
# skip the ISA and go to the name pointer
def offset(self):
logger = lldb.formatters.Logger.Logger()
return self.sys_params.pointer_size
def name(self):
logger = lldb.formatters.Logger.Logger()
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):
logger = lldb.formatters.Logger.Logger()
self.valobj = valobj
self.sys_params = params
self.update()
def update(self):
logger = lldb.formatters.Logger.Logger()
self.adjust_for_architecture()
def name(self):
logger = lldb.formatters.Logger.Logger()
stream = lldb.SBStream()
self.valobj.GetExpressionPath(stream)
name_vo = self.valobj.CreateValueFromExpression(
"name", "(NSString*)[" + stream.GetData() + " name]")
if name_vo.IsValid():
return CFString.CFString_SummaryProvider(name_vo, None)
return '<variable is not NSNotification>'
def GetSummary_Impl(valobj):
logger = lldb.formatters.Logger.Logger()
global statistics
class_data, wrapper = lldb.runtime.objc.objc_runtime.Utilities.prepare_class_detection(
valobj, statistics)
if wrapper:
return wrapper
name_string = class_data.class_name()
logger >> "class name is: " + str(name_string)
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',
valobj.GetName() +
" seen as " +
name_string)
return wrapper
def NSNotification_SummaryProvider(valobj, dict):
logger = lldb.formatters.Logger.Logger()
provider = GetSummary_Impl(valobj)
if provider is not None:
if isinstance(
provider,
lldb.runtime.objc.objc_runtime.SpecialSituation_Description):
return provider.message()
try:
summary = provider.name()
except:
summary = None
logger >> "got summary " + str(summary)
if summary is None:
summary = '<variable is not NSNotification>'
return str(summary)
return 'Summary Unavailable'
def __lldb_init_module(debugger, dict):
debugger.HandleCommand(
"type summary add -F NSNotification.NSNotification_SummaryProvider NSNotification")
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