ValueObjectSynthetic::ValueObjectSynthetic(ValueObject &parent,
lldb::SyntheticChildrenSP filter)
: ValueObject(parent), m_synth_sp(filter), m_children_byindex(),
m_name_toindex(), m_synthetic_children_count(UINT32_MAX),
m_synthetic_children_cache(), m_parent_type_name(parent.GetTypeName()),
m_might_have_children(eLazyBoolCalculate),
m_provides_value(eLazyBoolCalculate) {
SetName(parent.GetName());
CopyValueData(m_parent);
CreateSynthFilter();
}
ValueObjectSynthetic::ValueObjectSynthetic (ValueObject &parent, lldb::SyntheticChildrenSP filter) :
ValueObject(parent),
m_synth_sp(filter),
m_children_byindex(),
m_name_toindex(),
m_synthetic_children_count(UINT32_MAX),
m_parent_type_name(parent.GetTypeName()),
m_might_have_children(eLazyBoolCalculate),
m_provides_value(eLazyBoolCalculate)
{
#ifdef FOOBAR
std::string new_name(parent.GetName().AsCString());
new_name += "$$__synth__";
SetName (ConstString(new_name.c_str()));
#else
SetName(parent.GetName());
#endif
CopyValueData(m_parent);
CreateSynthFilter();
}
bool
lldb_private::formatters::CFBagSummaryProvider (ValueObject& valobj, Stream& stream)
{
ProcessSP process_sp = valobj.GetProcessSP();
if (!process_sp)
return false;
ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
if (!runtime)
return false;
ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
if (!descriptor.get() || !descriptor->IsValid())
return false;
uint32_t ptr_size = process_sp->GetAddressByteSize();
lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
if (!valobj_addr)
return false;
uint32_t count = 0;
bool is_type_ok = false; // check to see if this is a CFBag we know about
if (descriptor->IsCFType())
{
ConstString type_name(valobj.GetTypeName());
if (type_name == ConstString("__CFBag") || type_name == ConstString("const struct __CFBag"))
{
if (valobj.IsPointerType())
is_type_ok = true;
}
}
if (is_type_ok == false)
{
StackFrameSP frame_sp(valobj.GetFrameSP());
if (!frame_sp)
return false;
ValueObjectSP count_sp;
StreamString expr;
expr.Printf("(int)CFBagGetCount((void*)0x%" PRIx64 ")",valobj.GetPointerValue());
if (process_sp->GetTarget().EvaluateExpression(expr.GetData(), frame_sp.get(), count_sp) != eExecutionCompleted)
return false;
if (!count_sp)
return false;
count = count_sp->GetValueAsUnsigned(0);
}
else
{
uint32_t offset = 2*ptr_size+4 + valobj_addr;
Error error;
count = process_sp->ReadUnsignedIntegerFromMemory(offset, 4, 0, error);
if (error.Fail())
return false;
}
stream.Printf("@\"%u value%s\"",
count,(count == 1 ? "" : "s"));
return true;
}
bool
lldb_private::formatters::CFBitVectorSummaryProvider (ValueObject& valobj, Stream& stream)
{
ProcessSP process_sp = valobj.GetProcessSP();
if (!process_sp)
return false;
ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
if (!runtime)
return false;
ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
if (!descriptor.get() || !descriptor->IsValid())
return false;
uint32_t ptr_size = process_sp->GetAddressByteSize();
lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
if (!valobj_addr)
return false;
uint32_t count = 0;
bool is_type_ok = false; // check to see if this is a CFBag we know about
if (descriptor->IsCFType())
{
ConstString type_name(valobj.GetTypeName());
if (type_name == ConstString("__CFMutableBitVector") || type_name == ConstString("__CFBitVector") || type_name == ConstString("CFMutableBitVectorRef") || type_name == ConstString("CFBitVectorRef"))
{
if (valobj.IsPointerType())
is_type_ok = true;
}
}
if (is_type_ok == false)
return false;
Error error;
count = process_sp->ReadUnsignedIntegerFromMemory(valobj_addr+2*ptr_size, ptr_size, 0, error);
if (error.Fail())
return false;
uint64_t num_bytes = count / 8 + ((count & 7) ? 1 : 0);
addr_t data_ptr = process_sp->ReadPointerFromMemory(valobj_addr+2*ptr_size+2*ptr_size, error);
if (error.Fail())
return false;
// make sure we do not try to read huge amounts of data
if (num_bytes > 1024)
num_bytes = 1024;
DataBufferSP buffer_sp(new DataBufferHeap(num_bytes,0));
num_bytes = process_sp->ReadMemory(data_ptr, buffer_sp->GetBytes(), num_bytes, error);
if (error.Fail() || num_bytes == 0)
return false;
uint8_t *bytes = buffer_sp->GetBytes();
for (uint64_t byte_idx = 0; byte_idx < num_bytes-1; byte_idx++)
{
uint8_t byte = bytes[byte_idx];
bool bit0 = (byte & 1) == 1;
bool bit1 = (byte & 2) == 2;
bool bit2 = (byte & 4) == 4;
bool bit3 = (byte & 8) == 8;
bool bit4 = (byte & 16) == 16;
bool bit5 = (byte & 32) == 32;
bool bit6 = (byte & 64) == 64;
bool bit7 = (byte & 128) == 128;
stream.Printf("%c%c%c%c %c%c%c%c ",
(bit7 ? '1' : '0'),
(bit6 ? '1' : '0'),
(bit5 ? '1' : '0'),
(bit4 ? '1' : '0'),
(bit3 ? '1' : '0'),
(bit2 ? '1' : '0'),
(bit1 ? '1' : '0'),
(bit0 ? '1' : '0'));
count -= 8;
}
{
// print the last byte ensuring we do not print spurious bits
uint8_t byte = bytes[num_bytes-1];
bool bit0 = (byte & 1) == 1;
bool bit1 = (byte & 2) == 2;
bool bit2 = (byte & 4) == 4;
bool bit3 = (byte & 8) == 8;
bool bit4 = (byte & 16) == 16;
bool bit5 = (byte & 32) == 32;
bool bit6 = (byte & 64) == 64;
bool bit7 = (byte & 128) == 128;
if (count)
{
stream.Printf("%c",bit7 ? '1' : '0');
count -= 1;
}
if (count)
{
stream.Printf("%c",bit6 ? '1' : '0');
count -= 1;
}
if (count)
{
stream.Printf("%c",bit5 ? '1' : '0');
count -= 1;
}
if (count)
{
stream.Printf("%c",bit4 ? '1' : '0');
count -= 1;
}
if (count)
{
stream.Printf("%c",bit3 ? '1' : '0');
count -= 1;
}
if (count)
{
stream.Printf("%c",bit2 ? '1' : '0');
count -= 1;
}
if (count)
{
stream.Printf("%c",bit1 ? '1' : '0');
count -= 1;
}
if (count)
stream.Printf("%c",bit0 ? '1' : '0');
}
return true;
}
bool
lldb_private::formatters::CFBagSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
{
static ConstString g_TypeHint("CFBag");
ProcessSP process_sp = valobj.GetProcessSP();
if (!process_sp)
return false;
ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
if (!runtime)
return false;
ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
if (!descriptor.get() || !descriptor->IsValid())
return false;
uint32_t ptr_size = process_sp->GetAddressByteSize();
lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
if (!valobj_addr)
return false;
uint32_t count = 0;
bool is_type_ok = false; // check to see if this is a CFBag we know about
if (descriptor->IsCFType())
{
ConstString type_name(valobj.GetTypeName());
static ConstString g___CFBag("__CFBag");
static ConstString g_conststruct__CFBag("const struct __CFBag");
if (type_name == g___CFBag ||
type_name == g_conststruct__CFBag)
{
if (valobj.IsPointerType())
is_type_ok = true;
}
}
if (is_type_ok)
{
lldb::addr_t offset = 2*ptr_size+4 + valobj_addr;
Error error;
count = process_sp->ReadUnsignedIntegerFromMemory(offset, 4, 0, error);
if (error.Fail())
return false;
}
else
return false;
std::string prefix,suffix;
if (Language* language = Language::FindPlugin(options.GetLanguage()))
{
if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
{
prefix.clear();
suffix.clear();
}
}
stream.Printf("%s\"%u value%s\"%s",
prefix.c_str(),
count,(count == 1 ? "" : "s"),
suffix.c_str());
return true;
}
TypeAndOrName ItaniumABILanguageRuntime::GetTypeInfoFromVTableAddress(
ValueObject &in_value, lldb::addr_t original_ptr,
lldb::addr_t vtable_load_addr) {
if (m_process && vtable_load_addr != LLDB_INVALID_ADDRESS) {
// Find the symbol that contains the "vtable_load_addr" address
Address vtable_addr;
Target &target = m_process->GetTarget();
if (!target.GetSectionLoadList().IsEmpty()) {
if (target.GetSectionLoadList().ResolveLoadAddress(vtable_load_addr,
vtable_addr)) {
// See if we have cached info for this type already
TypeAndOrName type_info = GetDynamicTypeInfo(vtable_addr);
if (type_info)
return type_info;
SymbolContext sc;
target.GetImages().ResolveSymbolContextForAddress(
vtable_addr, eSymbolContextSymbol, sc);
Symbol *symbol = sc.symbol;
if (symbol != NULL) {
const char *name =
symbol->GetMangled()
.GetDemangledName(lldb::eLanguageTypeC_plus_plus)
.AsCString();
if (name && strstr(name, vtable_demangled_prefix) == name) {
Log *log(
lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_OBJECT));
if (log)
log->Printf("0x%16.16" PRIx64
": static-type = '%s' has vtable symbol '%s'\n",
original_ptr, in_value.GetTypeName().GetCString(),
name);
// We are a C++ class, that's good. Get the class name and look it
// up:
const char *class_name = name + strlen(vtable_demangled_prefix);
type_info.SetName(class_name);
const bool exact_match = true;
TypeList class_types;
uint32_t num_matches = 0;
// First look in the module that the vtable symbol came from
// and look for a single exact match.
llvm::DenseSet<SymbolFile *> searched_symbol_files;
if (sc.module_sp) {
num_matches = sc.module_sp->FindTypes(
sc, ConstString(class_name), exact_match, 1,
searched_symbol_files, class_types);
}
// If we didn't find a symbol, then move on to the entire
// module list in the target and get as many unique matches
// as possible
if (num_matches == 0) {
num_matches = target.GetImages().FindTypes(
sc, ConstString(class_name), exact_match, UINT32_MAX,
searched_symbol_files, class_types);
}
lldb::TypeSP type_sp;
if (num_matches == 0) {
if (log)
log->Printf("0x%16.16" PRIx64 ": is not dynamic\n",
original_ptr);
return TypeAndOrName();
}
if (num_matches == 1) {
type_sp = class_types.GetTypeAtIndex(0);
if (type_sp) {
if (ClangASTContext::IsCXXClassType(
type_sp->GetForwardCompilerType())) {
if (log)
log->Printf(
"0x%16.16" PRIx64
": static-type = '%s' has dynamic type: uid={0x%" PRIx64
"}, type-name='%s'\n",
original_ptr, in_value.GetTypeName().AsCString(),
type_sp->GetID(), type_sp->GetName().GetCString());
type_info.SetTypeSP(type_sp);
}
}
} else if (num_matches > 1) {
size_t i;
if (log) {
for (i = 0; i < num_matches; i++) {
type_sp = class_types.GetTypeAtIndex(i);
if (type_sp) {
if (log)
log->Printf(
"0x%16.16" PRIx64
": static-type = '%s' has multiple matching dynamic "
"types: uid={0x%" PRIx64 "}, type-name='%s'\n",
original_ptr, in_value.GetTypeName().AsCString(),
type_sp->GetID(), type_sp->GetName().GetCString());
}
}
}
for (i = 0; i < num_matches; i++) {
type_sp = class_types.GetTypeAtIndex(i);
if (type_sp) {
if (ClangASTContext::IsCXXClassType(
type_sp->GetForwardCompilerType())) {
if (log)
log->Printf(
"0x%16.16" PRIx64 ": static-type = '%s' has multiple "
"matching dynamic types, picking "
"this one: uid={0x%" PRIx64
"}, type-name='%s'\n",
original_ptr, in_value.GetTypeName().AsCString(),
type_sp->GetID(), type_sp->GetName().GetCString());
type_info.SetTypeSP(type_sp);
}
}
}
if (log && i == num_matches) {
log->Printf(
"0x%16.16" PRIx64
": static-type = '%s' has multiple matching dynamic "
"types, didn't find a C++ match\n",
original_ptr, in_value.GetTypeName().AsCString());
}
}
if (type_info)
SetDynamicTypeInfo(vtable_addr, type_info);
return type_info;
}
}
}
}
}
return TypeAndOrName();
}
bool
ItaniumABILanguageRuntime::GetDynamicTypeAndAddress (ValueObject &in_value,
lldb::DynamicValueType use_dynamic,
TypeAndOrName &class_type_or_name,
Address &dynamic_address)
{
// For Itanium, if the type has a vtable pointer in the object, it will be at offset 0
// in the object. That will point to the "address point" within the vtable (not the beginning of the
// vtable.) We can then look up the symbol containing this "address point" and that symbol's name
// demangled will contain the full class name.
// The second pointer above the "address point" is the "offset_to_top". We'll use that to get the
// start of the value object which holds the dynamic type.
//
class_type_or_name.Clear();
// Only a pointer or reference type can have a different dynamic and static type:
if (CouldHaveDynamicValue (in_value))
{
// First job, pull out the address at 0 offset from the object.
AddressType address_type;
lldb::addr_t original_ptr = in_value.GetPointerValue(&address_type);
if (original_ptr == LLDB_INVALID_ADDRESS)
return false;
ExecutionContext exe_ctx (in_value.GetExecutionContextRef());
Target *target = exe_ctx.GetTargetPtr();
Process *process = exe_ctx.GetProcessPtr();
char memory_buffer[16];
DataExtractor data(memory_buffer, sizeof(memory_buffer),
process->GetByteOrder(),
process->GetAddressByteSize());
size_t address_byte_size = process->GetAddressByteSize();
Error error;
size_t bytes_read = process->ReadMemory (original_ptr,
memory_buffer,
address_byte_size,
error);
if (!error.Success() || (bytes_read != address_byte_size))
{
return false;
}
lldb::offset_t offset = 0;
lldb::addr_t vtable_address_point = data.GetAddress (&offset);
if (offset == 0)
return false;
// Now find the symbol that contains this address:
SymbolContext sc;
Address address_point_address;
if (target && !target->GetSectionLoadList().IsEmpty())
{
if (target->GetSectionLoadList().ResolveLoadAddress (vtable_address_point, address_point_address))
{
target->GetImages().ResolveSymbolContextForAddress (address_point_address, eSymbolContextSymbol, sc);
Symbol *symbol = sc.symbol;
if (symbol != NULL)
{
const char *name = symbol->GetMangled().GetDemangledName().AsCString();
if (strstr(name, vtable_demangled_prefix) == name)
{
Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT));
if (log)
log->Printf ("0x%16.16" PRIx64 ": static-type = '%s' has vtable symbol '%s'\n",
original_ptr,
in_value.GetTypeName().GetCString(),
name);
// We are a C++ class, that's good. Get the class name and look it up:
const char *class_name = name + strlen(vtable_demangled_prefix);
class_type_or_name.SetName (class_name);
const bool exact_match = true;
TypeList class_types;
uint32_t num_matches = 0;
// First look in the module that the vtable symbol came from
// and look for a single exact match.
if (sc.module_sp)
{
num_matches = sc.module_sp->FindTypes (sc,
ConstString(class_name),
exact_match,
1,
class_types);
}
// If we didn't find a symbol, then move on to the entire
// module list in the target and get as many unique matches
// as possible
if (num_matches == 0)
{
num_matches = target->GetImages().FindTypes (sc,
ConstString(class_name),
exact_match,
UINT32_MAX,
class_types);
}
lldb::TypeSP type_sp;
if (num_matches == 0)
{
if (log)
log->Printf("0x%16.16" PRIx64 ": is not dynamic\n", original_ptr);
return false;
}
if (num_matches == 1)
{
type_sp = class_types.GetTypeAtIndex(0);
if (log)
log->Printf ("0x%16.16" PRIx64 ": static-type = '%s' has dynamic type: uid={0x%" PRIx64 "}, type-name='%s'\n",
original_ptr,
in_value.GetTypeName().AsCString(),
type_sp->GetID(),
type_sp->GetName().GetCString());
class_type_or_name.SetTypeSP(class_types.GetTypeAtIndex(0));
}
else if (num_matches > 1)
{
size_t i;
if (log)
{
for (i = 0; i < num_matches; i++)
{
type_sp = class_types.GetTypeAtIndex(i);
if (type_sp)
{
if (log)
log->Printf ("0x%16.16" PRIx64 ": static-type = '%s' has multiple matching dynamic types: uid={0x%" PRIx64 "}, type-name='%s'\n",
original_ptr,
in_value.GetTypeName().AsCString(),
type_sp->GetID(),
type_sp->GetName().GetCString());
}
}
}
for (i = 0; i < num_matches; i++)
{
type_sp = class_types.GetTypeAtIndex(i);
if (type_sp)
{
if (type_sp->GetClangFullType().IsCXXClassType())
{
if (log)
log->Printf ("0x%16.16" PRIx64 ": static-type = '%s' has multiple matching dynamic types, picking this one: uid={0x%" PRIx64 "}, type-name='%s'\n",
original_ptr,
in_value.GetTypeName().AsCString(),
type_sp->GetID(),
type_sp->GetName().GetCString());
class_type_or_name.SetTypeSP(type_sp);
break;
}
}
}
if (i == num_matches)
{
if (log)
log->Printf ("0x%16.16" PRIx64 ": static-type = '%s' has multiple matching dynamic types, didn't find a C++ match\n",
original_ptr,
in_value.GetTypeName().AsCString());
return false;
}
}
// There can only be one type with a given name,
// so we've just found duplicate definitions, and this
// one will do as well as any other.
// We don't consider something to have a dynamic type if
// it is the same as the static type. So compare against
// the value we were handed.
if (type_sp)
{
if (ClangASTContext::AreTypesSame (in_value.GetClangType(),
type_sp->GetClangFullType()))
{
// The dynamic type we found was the same type,
// so we don't have a dynamic type here...
return false;
}
// The offset_to_top is two pointers above the address.
Address offset_to_top_address = address_point_address;
int64_t slide = -2 * ((int64_t) target->GetArchitecture().GetAddressByteSize());
offset_to_top_address.Slide (slide);
Error error;
lldb::addr_t offset_to_top_location = offset_to_top_address.GetLoadAddress(target);
size_t bytes_read = process->ReadMemory (offset_to_top_location,
memory_buffer,
address_byte_size,
error);
if (!error.Success() || (bytes_read != address_byte_size))
{
return false;
}
offset = 0;
int64_t offset_to_top = data.GetMaxS64(&offset, process->GetAddressByteSize());
// So the dynamic type is a value that starts at offset_to_top
// above the original address.
lldb::addr_t dynamic_addr = original_ptr + offset_to_top;
if (!target->GetSectionLoadList().ResolveLoadAddress (dynamic_addr, dynamic_address))
{
dynamic_address.SetRawAddress(dynamic_addr);
}
return true;
}
}
}
}
}
}
return class_type_or_name.IsEmpty() == false;
}
std::unique_ptr<SwiftHashedContainerBufferHandler>
SwiftHashedContainerBufferHandler::CreateBufferHandler (ValueObject& valobj,
NativeCreatorFunction Native,
SyntheticCreatorFunction Synthetic,
ConstString mangled,
ConstString demangled)
{
static ConstString g__variantStorage("_variantStorage");
static ConstString g_Native("native");
static ConstString g_Cocoa("cocoa");
static ConstString g_nativeStorage("nativeStorage");
static ConstString g_buffer("buffer");
static ConstString g_storage("storage");
static ConstString g__storage("_storage");
static ConstString g_Some("some");
Error error;
ProcessSP process_sp(valobj.GetProcessSP());
if (!process_sp)
return nullptr;
ConstString type_name_cs(valobj.GetTypeName());
if (type_name_cs)
{
llvm::StringRef type_name_strref(type_name_cs.GetStringRef());
if (type_name_strref.startswith(mangled.GetCString()) ||
type_name_strref.startswith(demangled.GetCString()))
{
return CreateBufferHandlerForNativeStorageOwner(valobj, valobj.GetPointerValue(), false, Native);
}
}
ValueObjectSP valobj_sp = valobj.GetSP()->GetQualifiedRepresentationIfAvailable(lldb::eDynamicCanRunTarget, false);
ValueObjectSP _variantStorageSP(valobj_sp->GetChildMemberWithName(g__variantStorage, true));
if (!_variantStorageSP)
return nullptr;
ConstString storage_kind(_variantStorageSP->GetValueAsCString());
if (!storage_kind)
return nullptr;
if (g_Cocoa == storage_kind)
{
ValueObjectSP child_sp(_variantStorageSP->GetChildMemberWithName(g_Native, true));
if (!child_sp)
return nullptr;
// it's an NSDictionary in disguise
uint64_t cocoa_storage_ptr = child_sp->GetValueAsUnsigned(LLDB_INVALID_ADDRESS);
if (cocoa_storage_ptr == LLDB_INVALID_ADDRESS || error.Fail())
return nullptr;
cocoa_storage_ptr &= 0x00FFFFFFFFFFFFFF; // for some reason I need to zero out the MSB; figure out why later
CompilerType id = process_sp->GetTarget().GetScratchClangASTContext()->GetBasicType(lldb::eBasicTypeObjCID);
InferiorSizedWord isw(cocoa_storage_ptr, *process_sp);
ValueObjectSP cocoarr_sp = ValueObject::CreateValueObjectFromData("cocoarr", isw.GetAsData(process_sp->GetByteOrder()), valobj.GetExecutionContextRef(), id);
if (!cocoarr_sp)
return nullptr;
auto objc_runtime = process_sp->GetObjCLanguageRuntime();
auto descriptor_sp = objc_runtime->GetClassDescriptor(*cocoarr_sp);
if (!descriptor_sp)
return nullptr;
ConstString classname(descriptor_sp->GetClassName());
if (classname && classname.GetStringRef().startswith(mangled.GetCString()))
{
return CreateBufferHandlerForNativeStorageOwner(*_variantStorageSP, cocoa_storage_ptr, true, Native);
}
else
{
auto handler = std::unique_ptr<SwiftHashedContainerBufferHandler>(Synthetic(cocoarr_sp));
if (handler && handler->IsValid())
return handler;
return nullptr;
}
}
if (g_Native == storage_kind)
{
ValueObjectSP native_sp(_variantStorageSP->GetChildAtNamePath({ g_Native }));
ValueObjectSP nativeStorage_sp(_variantStorageSP->GetChildAtNamePath( { g_Native, g_nativeStorage } ));
if (!native_sp || !nativeStorage_sp)
return nullptr;
CompilerType child_type(valobj.GetCompilerType());
lldb::TemplateArgumentKind kind;
CompilerType key_type(child_type.GetTemplateArgument(0, kind));
CompilerType value_type(child_type.GetTemplateArgument(1, kind));
auto handler = std::unique_ptr<SwiftHashedContainerBufferHandler>(Native(nativeStorage_sp, key_type, value_type));
if (handler && handler->IsValid())
return handler;
return nullptr;
}
return nullptr;
}
bool
lldb_private::formatters::CFBinaryHeapSummaryProvider (ValueObject& valobj, Stream& stream, const TypeSummaryOptions& options)
{
static ConstString g_TypeHint("CFBinaryHeap");
ProcessSP process_sp = valobj.GetProcessSP();
if (!process_sp)
return false;
ObjCLanguageRuntime* runtime = (ObjCLanguageRuntime*)process_sp->GetLanguageRuntime(lldb::eLanguageTypeObjC);
if (!runtime)
return false;
ObjCLanguageRuntime::ClassDescriptorSP descriptor(runtime->GetClassDescriptor(valobj));
if (!descriptor.get() || !descriptor->IsValid())
return false;
uint32_t ptr_size = process_sp->GetAddressByteSize();
lldb::addr_t valobj_addr = valobj.GetValueAsUnsigned(0);
if (!valobj_addr)
return false;
uint32_t count = 0;
bool is_type_ok = false; // check to see if this is a CFBinaryHeap we know about
if (descriptor->IsCFType())
{
ConstString type_name(valobj.GetTypeName());
if (type_name == ConstString("__CFBinaryHeap") || type_name == ConstString("const struct __CFBinaryHeap"))
{
if (valobj.IsPointerType())
is_type_ok = true;
}
}
if (is_type_ok == false)
{
StackFrameSP frame_sp(valobj.GetFrameSP());
if (!frame_sp)
return false;
ValueObjectSP count_sp;
StreamString expr;
expr.Printf("(int)CFBinaryHeapGetCount((void*)0x%" PRIx64 ")",valobj.GetPointerValue());
EvaluateExpressionOptions options;
options.SetResultIsInternal(true);
if (process_sp->GetTarget().EvaluateExpression(expr.GetData(), frame_sp.get(), count_sp, options) != eExpressionCompleted)
return false;
if (!count_sp)
return false;
count = count_sp->GetValueAsUnsigned(0);
}
else
{
uint32_t offset = 2*ptr_size;
Error error;
count = process_sp->ReadUnsignedIntegerFromMemory(offset, 4, 0, error);
if (error.Fail())
return false;
}
std::string prefix,suffix;
if (Language* language = Language::FindPlugin(options.GetLanguage()))
{
if (!language->GetFormatterPrefixSuffix(valobj, g_TypeHint, prefix, suffix))
{
prefix.clear();
suffix.clear();
}
}
stream.Printf("%s\"%u item%s\"%s",
prefix.c_str(),
count,(count == 1 ? "" : "s"),
suffix.c_str());
return true;
}