ValueObjectSP
GoUserExpression::GoInterpreter::VisitIndexExpr(const lldb_private::GoASTIndexExpr *e)
{
ValueObjectSP target = EvaluateExpr(e->GetX());
if (!target)
return nullptr;
ValueObjectSP index = EvaluateExpr(e->GetIndex());
if (!index)
return nullptr;
bool is_signed;
if (!index->GetCompilerType().IsIntegerType(is_signed))
{
m_error.SetErrorString("Unsupported index");
return nullptr;
}
size_t idx;
if (is_signed)
idx = index->GetValueAsSigned(0);
else
idx = index->GetValueAsUnsigned(0);
if (GoASTContext::IsGoSlice(target->GetCompilerType()))
{
target = target->GetStaticValue();
ValueObjectSP cap = target->GetChildMemberWithName(ConstString("cap"), true);
if (cap)
{
uint64_t capval = cap->GetValueAsUnsigned(0);
if (idx >= capval)
{
m_error.SetErrorStringWithFormat("Invalid index %" PRIu64 " , cap = %" PRIu64, uint64_t(idx), capval);
return nullptr;
}
}
target = target->GetChildMemberWithName(ConstString("array"), true);
if (target && m_use_dynamic != eNoDynamicValues)
{
ValueObjectSP dynamic = target->GetDynamicValue(m_use_dynamic);
if (dynamic)
target = dynamic;
}
if (!target)
return nullptr;
return target->GetSyntheticArrayMember(idx, true);
}
return target->GetChildAtIndex(idx, true);
}
ValueObjectSP
GoUserExpression::GoInterpreter::VisitSelectorExpr(const lldb_private::GoASTSelectorExpr *e)
{
ValueObjectSP target = EvaluateExpr(e->GetX());
if (target)
{
if (target->GetCompilerType().IsPointerType())
{
target = target->Dereference(m_error);
if (m_error.Fail())
return nullptr;
}
ConstString field(e->GetSel()->GetName().m_value);
ValueObjectSP result = target->GetChildMemberWithName(field, true);
if (!result)
m_error.SetErrorStringWithFormat("Unknown child %s", field.AsCString());
return result;
}
if (const GoASTIdent *package = llvm::dyn_cast<GoASTIdent>(e->GetX()))
{
if (VariableSP global = FindGlobalVariable(m_exe_ctx.GetTargetSP(),
package->GetName().m_value + "." + e->GetSel()->GetName().m_value))
{
if (m_frame)
{
m_error.Clear();
return m_frame->GetValueObjectForFrameVariable(global, m_use_dynamic);
}
}
}
if (const GoASTBasicLit *packageLit = llvm::dyn_cast<GoASTBasicLit>(e->GetX()))
{
if (packageLit->GetValue().m_type == GoLexer::LIT_STRING)
{
std::string value = packageLit->GetValue().m_value.str();
value = value.substr(1, value.size() - 2);
if (VariableSP global =
FindGlobalVariable(m_exe_ctx.GetTargetSP(), value + "." + e->GetSel()->GetName().m_value))
{
if (m_frame)
{
m_error.Clear();
return m_frame->TrackGlobalVariable(global, m_use_dynamic);
}
}
}
}
// EvaluateExpr should have already set m_error.
return target;
}
OperatingSystemGo::Goroutine
OperatingSystemGo::CreateGoroutineAtIndex(uint64_t idx, Error &err)
{
err.Clear();
Goroutine result;
ValueObjectSP g = m_allg_sp->GetSyntheticArrayMember(idx, true)->Dereference(err);
if (err.Fail())
{
return result;
}
ConstString name("goid");
ValueObjectSP val = g->GetChildMemberWithName(name, true);
bool success = false;
result.m_goid = val->GetValueAsUnsigned(0, &success);
if (!success)
{
err.SetErrorToGenericError();
err.SetErrorString("unable to read goid");
return result;
}
name.SetCString("atomicstatus");
val = g->GetChildMemberWithName(name, true);
result.m_status = (uint32_t)val->GetValueAsUnsigned(0, &success);
if (!success)
{
err.SetErrorToGenericError();
err.SetErrorString("unable to read atomicstatus");
return result;
}
name.SetCString("sched");
val = g->GetChildMemberWithName(name, true);
result.m_gobuf = val->GetAddressOf(false);
name.SetCString("stack");
val = g->GetChildMemberWithName(name, true);
name.SetCString("lo");
ValueObjectSP child = val->GetChildMemberWithName(name, true);
result.m_lostack = child->GetValueAsUnsigned(0, &success);
if (!success)
{
err.SetErrorToGenericError();
err.SetErrorString("unable to read stack.lo");
return result;
}
name.SetCString("hi");
child = val->GetChildMemberWithName(name, true);
result.m_histack = child->GetValueAsUnsigned(0, &success);
if (!success)
{
err.SetErrorToGenericError();
err.SetErrorString("unable to read stack.hi");
return result;
}
return result;
}
bool
lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetDataType()
{
if (m_element_type.GetOpaqueQualType() && m_element_type.GetTypeSystem())
return true;
m_element_type.Clear();
ValueObjectSP deref;
Error error;
deref = m_root_node->Dereference(error);
if (!deref || error.Fail())
return false;
deref = deref->GetChildMemberWithName(ConstString("__value_"), true);
if (!deref)
return false;
m_element_type = deref->GetCompilerType();
return true;
}
bool lldb_private::formatters::LibcxxStdMapSyntheticFrontEnd::GetDataType() {
static ConstString g___value_("__value_");
static ConstString g_tree_("__tree_");
static ConstString g_pair3("__pair3_");
if (m_element_type.GetOpaqueQualType() && m_element_type.GetTypeSystem())
return true;
m_element_type.Clear();
ValueObjectSP deref;
Status error;
deref = m_root_node->Dereference(error);
if (!deref || error.Fail())
return false;
deref = deref->GetChildMemberWithName(g___value_, true);
if (deref) {
m_element_type = deref->GetCompilerType();
return true;
}
deref = m_backend.GetChildAtNamePath({g_tree_, g_pair3});
if (!deref)
return false;
m_element_type = deref->GetCompilerType()
.GetTypeTemplateArgument(1)
.GetTypeTemplateArgument(1);
if (m_element_type) {
std::string name;
uint64_t bit_offset_ptr;
uint32_t bitfield_bit_size_ptr;
bool is_bitfield_ptr;
m_element_type = m_element_type.GetFieldAtIndex(
0, name, &bit_offset_ptr, &bitfield_bit_size_ptr, &is_bitfield_ptr);
m_element_type = m_element_type.GetTypedefedType();
return m_element_type.IsValid();
} else {
m_element_type = m_backend.GetCompilerType().GetTypeTemplateArgument(0);
return m_element_type.IsValid();
}
}