vendor/lldb/lldb-trunk-r290819

1 files changed, 169 insertions, 172 deletions

diff --git a/source/Plugins/Language/ObjC/NSException.cpp b/source/Plugins/Language/ObjC/NSException.cpp
index f70e7c7356e1..1609048d432c 100644
--- a/source/Plugins/Language/ObjC/NSException.cpp
+++ b/source/Plugins/Language/ObjC/NSException.cpp
@@ -34,186 +34,183 @@ using namespace lldb;
 using namespace lldb_private;
 using namespace lldb_private::formatters;
 
-bool
-lldb_private::formatters::NSException_SummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
-{
-    ProcessSP process_sp(valobj.GetProcessSP());
+bool lldb_private::formatters::NSException_SummaryProvider(
+    ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
+  ProcessSP process_sp(valobj.GetProcessSP());
+  if (!process_sp)
+    return false;
+
+  lldb::addr_t ptr_value = LLDB_INVALID_ADDRESS;
+
+  CompilerType valobj_type(valobj.GetCompilerType());
+  Flags type_flags(valobj_type.GetTypeInfo());
+  if (type_flags.AllClear(eTypeHasValue)) {
+    if (valobj.IsBaseClass() && valobj.GetParent())
+      ptr_value = valobj.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+  } else
+    ptr_value = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+
+  if (ptr_value == LLDB_INVALID_ADDRESS)
+    return false;
+  size_t ptr_size = process_sp->GetAddressByteSize();
+  lldb::addr_t name_location = ptr_value + 1 * ptr_size;
+  lldb::addr_t reason_location = ptr_value + 2 * ptr_size;
+
+  Error error;
+  lldb::addr_t name = process_sp->ReadPointerFromMemory(name_location, error);
+  if (error.Fail() || name == LLDB_INVALID_ADDRESS)
+    return false;
+
+  lldb::addr_t reason =
+      process_sp->ReadPointerFromMemory(reason_location, error);
+  if (error.Fail() || reason == LLDB_INVALID_ADDRESS)
+    return false;
+
+  InferiorSizedWord name_isw(name, *process_sp);
+  InferiorSizedWord reason_isw(reason, *process_sp);
+
+  CompilerType voidstar = process_sp->GetTarget()
+                              .GetScratchClangASTContext()
+                              ->GetBasicType(lldb::eBasicTypeVoid)
+                              .GetPointerType();
+
+  ValueObjectSP name_sp = ValueObject::CreateValueObjectFromData(
+      "name_str", name_isw.GetAsData(process_sp->GetByteOrder()),
+      valobj.GetExecutionContextRef(), voidstar);
+  ValueObjectSP reason_sp = ValueObject::CreateValueObjectFromData(
+      "reason_str", reason_isw.GetAsData(process_sp->GetByteOrder()),
+      valobj.GetExecutionContextRef(), voidstar);
+
+  if (!name_sp || !reason_sp)
+    return false;
+
+  StreamString name_str_summary;
+  StreamString reason_str_summary;
+  if (NSStringSummaryProvider(*name_sp, name_str_summary, options) &&
+      NSStringSummaryProvider(*reason_sp, reason_str_summary, options) &&
+      !name_str_summary.Empty() && !reason_str_summary.Empty()) {
+    stream.Printf("name: %s - reason: %s", name_str_summary.GetData(),
+                  reason_str_summary.GetData());
+    return true;
+  } else
+    return false;
+}
+
+class NSExceptionSyntheticFrontEnd : public SyntheticChildrenFrontEnd {
+public:
+  NSExceptionSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp)
+      : SyntheticChildrenFrontEnd(*valobj_sp) {}
+
+  ~NSExceptionSyntheticFrontEnd() override = default;
+  // no need to delete m_child_ptr - it's kept alive by the cluster manager on
+  // our behalf
+
+  size_t CalculateNumChildren() override {
+    if (m_child_ptr)
+      return 1;
+    if (m_child_sp)
+      return 1;
+    return 0;
+  }
+
+  lldb::ValueObjectSP GetChildAtIndex(size_t idx) override {
+    if (idx != 0)
+      return lldb::ValueObjectSP();
+
+    if (m_child_ptr)
+      return m_child_ptr->GetSP();
+    return m_child_sp;
+  }
+
+  bool Update() override {
+    m_child_ptr = nullptr;
+    m_child_sp.reset();
+
+    ProcessSP process_sp(m_backend.GetProcessSP());
     if (!process_sp)
-        return false;
-    
-    lldb::addr_t ptr_value = LLDB_INVALID_ADDRESS;
-    
-    CompilerType valobj_type(valobj.GetCompilerType());
+      return false;
+
+    lldb::addr_t userinfo_location = LLDB_INVALID_ADDRESS;
+
+    CompilerType valobj_type(m_backend.GetCompilerType());
     Flags type_flags(valobj_type.GetTypeInfo());
-    if (type_flags.AllClear(eTypeHasValue))
-    {
-        if (valobj.IsBaseClass() && valobj.GetParent())
-            ptr_value = valobj.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
-    }
-    else
-        ptr_value = valobj.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
-    
-    if (ptr_value == LLDB_INVALID_ADDRESS)
-        return false;
+    if (type_flags.AllClear(eTypeHasValue)) {
+      if (m_backend.IsBaseClass() && m_backend.GetParent())
+        userinfo_location =
+            m_backend.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+    } else
+      userinfo_location = m_backend.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
+
+    if (userinfo_location == LLDB_INVALID_ADDRESS)
+      return false;
+
     size_t ptr_size = process_sp->GetAddressByteSize();
-    lldb::addr_t name_location = ptr_value + 1 * ptr_size;
-    lldb::addr_t reason_location = ptr_value + 2 * ptr_size;
-    
+
+    userinfo_location += 3 * ptr_size;
     Error error;
-    lldb::addr_t name = process_sp->ReadPointerFromMemory(name_location, error);
-    if (error.Fail() || name == LLDB_INVALID_ADDRESS)
-        return false;
-    
-    lldb::addr_t reason = process_sp->ReadPointerFromMemory(reason_location, error);
-    if (error.Fail() || reason == LLDB_INVALID_ADDRESS)
-        return false;
-    
-    InferiorSizedWord name_isw(name, *process_sp);
-    InferiorSizedWord reason_isw(reason, *process_sp);
-    
-    CompilerType voidstar = process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeVoid).GetPointerType();
-    
-    ValueObjectSP name_sp = ValueObject::CreateValueObjectFromData("name_str", name_isw.GetAsData(process_sp->GetByteOrder()), valobj.GetExecutionContextRef(), voidstar);
-    ValueObjectSP reason_sp = ValueObject::CreateValueObjectFromData("reason_str", reason_isw.GetAsData(process_sp->GetByteOrder()), valobj.GetExecutionContextRef(), voidstar);
-    
-    if (!name_sp || !reason_sp)
-        return false;
-    
-    StreamString name_str_summary;
-    StreamString reason_str_summary;
-    if (NSStringSummaryProvider(*name_sp, name_str_summary, options) &&
-        NSStringSummaryProvider(*reason_sp, reason_str_summary, options) &&
-        !name_str_summary.Empty() &&
-        !reason_str_summary.Empty())
-    {
-        stream.Printf("name: %s - reason: %s", name_str_summary.GetData(), reason_str_summary.GetData());
-        return true;
-    }
-    else
-        return false;
-}
+    lldb::addr_t userinfo =
+        process_sp->ReadPointerFromMemory(userinfo_location, error);
+    if (userinfo == LLDB_INVALID_ADDRESS || error.Fail())
+      return false;
+    InferiorSizedWord isw(userinfo, *process_sp);
+    m_child_sp = CreateValueObjectFromData(
+        "userInfo", isw.GetAsData(process_sp->GetByteOrder()),
+        m_backend.GetExecutionContextRef(),
+        process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(
+            lldb::eBasicTypeObjCID));
+    return false;
+  }
 
-class NSExceptionSyntheticFrontEnd : public SyntheticChildrenFrontEnd
-{
-public:
-    NSExceptionSyntheticFrontEnd (lldb::ValueObjectSP valobj_sp) :
-    SyntheticChildrenFrontEnd(*valobj_sp)
-    {}
-
-    ~NSExceptionSyntheticFrontEnd() override = default;
-    // no need to delete m_child_ptr - it's kept alive by the cluster manager on our behalf
-
-    size_t
-    CalculateNumChildren() override
-    {
-        if (m_child_ptr)
-            return 1;
-        if (m_child_sp)
-            return 1;
-        return 0;
-    }
-    
-    lldb::ValueObjectSP
-    GetChildAtIndex(size_t idx) override
-    {
-        if (idx != 0)
-            return lldb::ValueObjectSP();
-        
-        if (m_child_ptr)
-            return m_child_ptr->GetSP();
-        return m_child_sp;
-    }
-    
-    bool
-    Update() override
-    {
-        m_child_ptr = nullptr;
-        m_child_sp.reset();
-        
-        ProcessSP process_sp(m_backend.GetProcessSP());
-        if (!process_sp)
-            return false;
-        
-        lldb::addr_t userinfo_location = LLDB_INVALID_ADDRESS;
-        
-        CompilerType valobj_type(m_backend.GetCompilerType());
-        Flags type_flags(valobj_type.GetTypeInfo());
-        if (type_flags.AllClear(eTypeHasValue))
-        {
-            if (m_backend.IsBaseClass() && m_backend.GetParent())
-                userinfo_location = m_backend.GetParent()->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
-        }
-        else
-            userinfo_location = m_backend.GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
-        
-        if (userinfo_location == LLDB_INVALID_ADDRESS)
-            return false;
-        
-        size_t ptr_size = process_sp->GetAddressByteSize();
-        
-        userinfo_location += 3 * ptr_size;
-        Error error;
-        lldb::addr_t userinfo = process_sp->ReadPointerFromMemory(userinfo_location, error);
-        if (userinfo == LLDB_INVALID_ADDRESS || error.Fail())
-            return false;
-        InferiorSizedWord isw(userinfo,*process_sp);
-        m_child_sp = CreateValueObjectFromData("userInfo",
-                                               isw.GetAsData(process_sp->GetByteOrder()),
-                                               m_backend.GetExecutionContextRef(),
-                                               process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeObjCID));
-        return false;
-    }
-    
-    bool
-    MightHaveChildren() override
-    {
-        return true;
-    }
-    
-    size_t
-    GetIndexOfChildWithName(const ConstString &name) override
-    {
-        static ConstString g___userInfo("userInfo");
-        if (name == g___userInfo)
-            return 0;
-        return UINT32_MAX;
-    }
+  bool MightHaveChildren() override { return true; }
+
+  size_t GetIndexOfChildWithName(const ConstString &name) override {
+    static ConstString g___userInfo("userInfo");
+    if (name == g___userInfo)
+      return 0;
+    return UINT32_MAX;
+  }
 
 private:
-    // the child here can be "real" (i.e. an actual child of the root) or synthetized from raw memory
-    // if the former, I need to store a plain pointer to it - or else a loop of references will cause this entire hierarchy of values to leak
-    // if the latter, then I need to store a SharedPointer to it - so that it only goes away when everyone else in the cluster goes away
-    // oh joy!
-    ValueObject* m_child_ptr;
-    ValueObjectSP m_child_sp;
+  // the child here can be "real" (i.e. an actual child of the root) or
+  // synthetized from raw memory
+  // if the former, I need to store a plain pointer to it - or else a loop of
+  // references will cause this entire hierarchy of values to leak
+  // if the latter, then I need to store a SharedPointer to it - so that it only
+  // goes away when everyone else in the cluster goes away
+  // oh joy!
+  ValueObject *m_child_ptr;
+  ValueObjectSP m_child_sp;
 };
 
-SyntheticChildrenFrontEnd*
-lldb_private::formatters::NSExceptionSyntheticFrontEndCreator (CXXSyntheticChildren*, lldb::ValueObjectSP valobj_sp)
-{
-    lldb::ProcessSP process_sp (valobj_sp->GetProcessSP());
-    if (!process_sp)
-        return nullptr;
-    ObjCLanguageRuntime *runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
-    if (!runtime)
-        return nullptr;
-    
-    ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(*valobj_sp.get()));
-    
-    if (!descriptor.get() || !descriptor->IsValid())
-        return nullptr;
-    
-    const char* class_name = descriptor->GetClassName().GetCString();
-    
-    if (!class_name || !*class_name)
-        return nullptr;
-    
-    if (!strcmp(class_name,"NSException"))
-        return (new NSExceptionSyntheticFrontEnd(valobj_sp));
-    else if (!strcmp(class_name,"NSCFException"))
-        return (new NSExceptionSyntheticFrontEnd(valobj_sp));
-    else if (!strcmp(class_name,"__NSCFException"))
-        return (new NSExceptionSyntheticFrontEnd(valobj_sp));
-    
+SyntheticChildrenFrontEnd *
+lldb_private::formatters::NSExceptionSyntheticFrontEndCreator(
+    CXXSyntheticChildren *, lldb::ValueObjectSP valobj_sp) {
+  lldb::ProcessSP process_sp(valobj_sp->GetProcessSP());
+  if (!process_sp)
     return nullptr;
+  ObjCLanguageRuntime *runtime =
+      (ObjCLanguageRuntime *)process_sp->GetLanguageRuntime(
+          lldb::eLanguageTypeObjC);
+  if (!runtime)
+    return nullptr;
+
+  ObjCLanguageRuntime::ClassDescriptorSP descriptor(
+      runtime->GetClassDescriptor(*valobj_sp.get()));
+
+  if (!descriptor.get() || !descriptor->IsValid())
+    return nullptr;
+
+  const char *class_name = descriptor->GetClassName().GetCString();
+
+  if (!class_name || !*class_name)
+    return nullptr;
+
+  if (!strcmp(class_name, "NSException"))
+    return (new NSExceptionSyntheticFrontEnd(valobj_sp));
+  else if (!strcmp(class_name, "NSCFException"))
+    return (new NSExceptionSyntheticFrontEnd(valobj_sp));
+  else if (!strcmp(class_name, "__NSCFException"))
+    return (new NSExceptionSyntheticFrontEnd(valobj_sp));
+
+  return nullptr;
 }