forked from OSchip/llvm-project
127 lines
3.9 KiB
Python
127 lines
3.9 KiB
Python
"""
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LLDB AppKit formatters
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Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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See https://llvm.org/LICENSE.txt for license information.
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SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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"""
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# example summary provider for NSNotification
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# the real summary is now C++ code built into LLDB
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import lldb.runtime.objc.objc_runtime
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import lldb.formatters.metrics
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import CFString
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import lldb
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import lldb.formatters.Logger
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statistics = lldb.formatters.metrics.Metrics()
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statistics.add_metric('invalid_isa')
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statistics.add_metric('invalid_pointer')
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statistics.add_metric('unknown_class')
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statistics.add_metric('code_notrun')
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class NSConcreteNotification_SummaryProvider:
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def adjust_for_architecture(self):
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pass
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def __init__(self, valobj, params):
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logger = lldb.formatters.Logger.Logger()
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self.valobj = valobj
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self.sys_params = params
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if not (self.sys_params.types_cache.id):
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self.sys_params.types_cache.id = self.valobj.GetType(
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).GetBasicType(lldb.eBasicTypeObjCID)
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self.update()
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def update(self):
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logger = lldb.formatters.Logger.Logger()
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self.adjust_for_architecture()
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# skip the ISA and go to the name pointer
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def offset(self):
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logger = lldb.formatters.Logger.Logger()
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return self.sys_params.pointer_size
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def name(self):
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logger = lldb.formatters.Logger.Logger()
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string_ptr = self.valobj.CreateChildAtOffset(
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"name", self.offset(), self.sys_params.types_cache.id)
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return CFString.CFString_SummaryProvider(string_ptr, None)
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class NSNotificationUnknown_SummaryProvider:
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def adjust_for_architecture(self):
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pass
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def __init__(self, valobj, params):
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logger = lldb.formatters.Logger.Logger()
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self.valobj = valobj
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self.sys_params = params
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self.update()
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def update(self):
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logger = lldb.formatters.Logger.Logger()
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self.adjust_for_architecture()
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def name(self):
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logger = lldb.formatters.Logger.Logger()
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stream = lldb.SBStream()
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self.valobj.GetExpressionPath(stream)
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name_vo = self.valobj.CreateValueFromExpression(
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"name", "(NSString*)[" + stream.GetData() + " name]")
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if name_vo.IsValid():
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return CFString.CFString_SummaryProvider(name_vo, None)
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return '<variable is not NSNotification>'
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def GetSummary_Impl(valobj):
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logger = lldb.formatters.Logger.Logger()
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global statistics
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class_data, wrapper = lldb.runtime.objc.objc_runtime.Utilities.prepare_class_detection(
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valobj, statistics)
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if wrapper:
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return wrapper
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name_string = class_data.class_name()
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logger >> "class name is: " + str(name_string)
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if name_string == 'NSConcreteNotification':
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wrapper = NSConcreteNotification_SummaryProvider(
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valobj, class_data.sys_params)
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statistics.metric_hit('code_notrun', valobj)
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else:
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wrapper = NSNotificationUnknown_SummaryProvider(
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valobj, class_data.sys_params)
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statistics.metric_hit(
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'unknown_class',
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valobj.GetName() +
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" seen as " +
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name_string)
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return wrapper
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def NSNotification_SummaryProvider(valobj, dict):
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logger = lldb.formatters.Logger.Logger()
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provider = GetSummary_Impl(valobj)
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if provider is not None:
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if isinstance(
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provider,
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lldb.runtime.objc.objc_runtime.SpecialSituation_Description):
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return provider.message()
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try:
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summary = provider.name()
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except:
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summary = None
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logger >> "got summary " + str(summary)
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if summary is None:
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summary = '<variable is not NSNotification>'
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return str(summary)
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return 'Summary Unavailable'
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def __lldb_init_module(debugger, dict):
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debugger.HandleCommand(
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"type summary add -F NSNotification.NSNotification_SummaryProvider NSNotification")
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