| """ |
| LLDB AppKit formatters |
| |
| Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| See https://llvm.org/LICENSE.txt for license information. |
| SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| """ |
| # summary provider for class NSException |
| 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 NSKnownException_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() |
| |
| def offset_name(self): |
| logger = lldb.formatters.Logger.Logger() |
| return self.sys_params.pointer_size |
| |
| def offset_reason(self): |
| logger = lldb.formatters.Logger.Logger() |
| return 2 * self.sys_params.pointer_size |
| |
| def description(self): |
| logger = lldb.formatters.Logger.Logger() |
| name_ptr = self.valobj.CreateChildAtOffset( |
| "name", self.offset_name(), self.sys_params.types_cache.id) |
| reason_ptr = self.valobj.CreateChildAtOffset( |
| "reason", self.offset_reason(), self.sys_params.types_cache.id) |
| return 'name:' + CFString.CFString_SummaryProvider( |
| name_ptr, None) + ' reason:' + CFString.CFString_SummaryProvider(reason_ptr, None) |
| |
| |
| class NSUnknownException_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 description(self): |
| logger = lldb.formatters.Logger.Logger() |
| stream = lldb.SBStream() |
| self.valobj.GetExpressionPath(stream) |
| name_vo = self.valobj.CreateValueFromExpression( |
| "name", "(NSString*)[" + stream.GetData() + " name]") |
| reason_vo = self.valobj.CreateValueFromExpression( |
| "reason", "(NSString*)[" + stream.GetData() + " reason]") |
| if name_vo.IsValid() and reason_vo.IsValid(): |
| return CFString.CFString_SummaryProvider( |
| name_vo, None) + ' ' + CFString.CFString_SummaryProvider(reason_vo, None) |
| return '<variable is not NSException>' |
| |
| |
| 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 == 'NSException': |
| wrapper = NSKnownException_SummaryProvider( |
| valobj, class_data.sys_params) |
| statistics.metric_hit('code_notrun', valobj) |
| else: |
| wrapper = NSUnknownException_SummaryProvider( |
| valobj, class_data.sys_params) |
| statistics.metric_hit( |
| 'unknown_class', |
| valobj.GetName() + |
| " seen as " + |
| name_string) |
| return wrapper |
| |
| |
| def NSException_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.description() |
| except: |
| summary = None |
| logger >> "got summary " + str(summary) |
| if summary is None: |
| summary = '<variable is not NSException>' |
| return str(summary) |
| return 'Summary Unavailable' |
| |
| |
| def __lldb_init_module(debugger, dict): |
| debugger.HandleCommand( |
| "type summary add -F NSException.NSException_SummaryProvider NSException") |
