diff options
Diffstat (limited to 'lldb/examples/summaries/cocoa/CFBag.py')
| -rw-r--r-- | lldb/examples/summaries/cocoa/CFBag.py | 241 |
1 files changed, 129 insertions, 112 deletions
diff --git a/lldb/examples/summaries/cocoa/CFBag.py b/lldb/examples/summaries/cocoa/CFBag.py index 37d14a432d5..d9a18996e78 100644 --- a/lldb/examples/summaries/cocoa/CFBag.py +++ b/lldb/examples/summaries/cocoa/CFBag.py @@ -22,125 +22,142 @@ statistics.add_metric('code_notrun') # despite the similary to synthetic children providers, these classes are not # trying to provide anything but the length for an CFBag, so they need not # obey the interface specification for synthetic children providers + + class CFBagRef_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.NSUInteger): - if self.sys_params.is_64_bit: - self.sys_params.types_cache.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedLong) - else: - self.sys_params.types_cache.NSUInteger = self.valobj.GetType().GetBasicType(lldb.eBasicTypeUnsignedInt) - self.update(); - - def update(self): - logger = lldb.formatters.Logger.Logger() - self.adjust_for_architecture(); - - # 12 bytes on i386 - # 20 bytes on x64 - # most probably 2 pointers and 4 bytes of data - def offset(self): - logger = lldb.formatters.Logger.Logger() - if self.sys_params.is_64_bit: - return 20 - else: - return 12 - - def length(self): - logger = lldb.formatters.Logger.Logger() - size = self.valobj.CreateChildAtOffset("count", - self.offset(), - self.sys_params.types_cache.NSUInteger) - return size.GetValueAsUnsigned(0) + + 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.NSUInteger): + if self.sys_params.is_64_bit: + self.sys_params.types_cache.NSUInteger = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeUnsignedLong) + else: + self.sys_params.types_cache.NSUInteger = self.valobj.GetType( + ).GetBasicType(lldb.eBasicTypeUnsignedInt) + self.update() + + def update(self): + logger = lldb.formatters.Logger.Logger() + self.adjust_for_architecture() + + # 12 bytes on i386 + # 20 bytes on x64 + # most probably 2 pointers and 4 bytes of data + def offset(self): + logger = lldb.formatters.Logger.Logger() + if self.sys_params.is_64_bit: + return 20 + else: + return 12 + + def length(self): + logger = lldb.formatters.Logger.Logger() + size = self.valobj.CreateChildAtOffset( + "count", self.offset(), self.sys_params.types_cache.NSUInteger) + return size.GetValueAsUnsigned(0) class CFBagUnknown_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 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 update(self): + logger = lldb.formatters.Logger.Logger() + self.adjust_for_architecture() - def length(self): - logger = lldb.formatters.Logger.Logger() - stream = lldb.SBStream() - self.valobj.GetExpressionPath(stream) - num_children_vo = self.valobj.CreateValueFromExpression("count","(int)CFBagGetCount(" + stream.GetData() + " )") - if num_children_vo.IsValid(): - return num_children_vo.GetValueAsUnsigned(0) - return "<variable is not CFBag>" + def length(self): + logger = lldb.formatters.Logger.Logger() + stream = lldb.SBStream() + self.valobj.GetExpressionPath(stream) + num_children_vo = self.valobj.CreateValueFromExpression( + "count", "(int)CFBagGetCount(" + stream.GetData() + " )") + if num_children_vo.IsValid(): + return num_children_vo.GetValueAsUnsigned(0) + return "<variable is not CFBag>" 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() - actual_name = name_string - - logger >> "name string got was " + str(name_string) + " but actual name is " + str(actual_name) - - if class_data.is_cftype(): - # CFBag does not expose an actual NSWrapper type, so we have to check that this is - # an NSCFType and then check we are a pointer-to __CFBag - valobj_type = valobj.GetType() - if valobj_type.IsValid() and valobj_type.IsPointerType(): - valobj_type = valobj_type.GetPointeeType() - if valobj_type.IsValid(): - actual_name = valobj_type.GetName() - if actual_name == '__CFBag' or \ - actual_name == 'const struct __CFBag': - wrapper = CFBagRef_SummaryProvider(valobj, class_data.sys_params) - statistics.metric_hit('code_notrun',valobj) - return wrapper - wrapper = CFBagUnknown_SummaryProvider(valobj, class_data.sys_params) - statistics.metric_hit('unknown_class',valobj.GetName() + " seen as " + actual_name) - return wrapper; - -def CFBag_SummaryProvider (valobj,dict): - logger = lldb.formatters.Logger.Logger() - provider = GetSummary_Impl(valobj); - if provider != None: - if isinstance(provider,lldb.runtime.objc.objc_runtime.SpecialSituation_Description): - return provider.message() - try: - summary = provider.length(); - except: - summary = None - logger >> "summary got from provider: " + str(summary) - # for some reason, one needs to clear some bits for the count - # to be correct when using CF(Mutable)BagRef on x64 - # the bit mask was derived through experimentation - # (if counts start looking weird, then most probably - # the mask needs to be changed) - if summary == None: - summary = '<variable is not CFBag>' - elif isinstance(summary,basestring): - pass - else: - if provider.sys_params.is_64_bit: - summary = summary & ~0x1fff000000000000 - if summary == 1: - summary = '@"1 value"' - else: - summary = '@"' + str(summary) + ' values"' - return summary - return 'Summary Unavailable' - -def __lldb_init_module(debugger,dict): - debugger.HandleCommand("type summary add -F CFBag.CFBag_SummaryProvider CFBagRef CFMutableBagRef") + 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() + actual_name = name_string + + logger >> "name string got was " + \ + str(name_string) + " but actual name is " + str(actual_name) + + if class_data.is_cftype(): + # CFBag does not expose an actual NSWrapper type, so we have to check that this is + # an NSCFType and then check we are a pointer-to __CFBag + valobj_type = valobj.GetType() + if valobj_type.IsValid() and valobj_type.IsPointerType(): + valobj_type = valobj_type.GetPointeeType() + if valobj_type.IsValid(): + actual_name = valobj_type.GetName() + if actual_name == '__CFBag' or \ + actual_name == 'const struct __CFBag': + wrapper = CFBagRef_SummaryProvider(valobj, class_data.sys_params) + statistics.metric_hit('code_notrun', valobj) + return wrapper + wrapper = CFBagUnknown_SummaryProvider(valobj, class_data.sys_params) + statistics.metric_hit( + 'unknown_class', + valobj.GetName() + + " seen as " + + actual_name) + return wrapper + + +def CFBag_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.length() + except: + summary = None + logger >> "summary got from provider: " + str(summary) + # for some reason, one needs to clear some bits for the count + # to be correct when using CF(Mutable)BagRef on x64 + # the bit mask was derived through experimentation + # (if counts start looking weird, then most probably + # the mask needs to be changed) + if summary is None: + summary = '<variable is not CFBag>' + elif isinstance(summary, basestring): + pass + else: + if provider.sys_params.is_64_bit: + summary = summary & ~0x1fff000000000000 + if summary == 1: + summary = '@"1 value"' + else: + summary = '@"' + str(summary) + ' values"' + return summary + return 'Summary Unavailable' + + +def __lldb_init_module(debugger, dict): + debugger.HandleCommand( + "type summary add -F CFBag.CFBag_SummaryProvider CFBagRef CFMutableBagRef") |
