1 //===-- ValueObjectCast.cpp -------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "lldb/Core/ValueObjectCast.h"
12 #include "lldb/Core/Scalar.h" // for operator!=, Scalar
13 #include "lldb/Core/Value.h"
14 #include "lldb/Core/ValueObject.h"
15 #include "lldb/Symbol/CompilerType.h"
16 #include "lldb/Target/ExecutionContext.h"
17 #include "lldb/Utility/Status.h" // for Status
19 namespace lldb_private {
23 using namespace lldb_private;
25 lldb::ValueObjectSP ValueObjectCast::Create(ValueObject &parent,
26 const ConstString &name,
27 const CompilerType &cast_type) {
28 ValueObjectCast *cast_valobj_ptr =
29 new ValueObjectCast(parent, name, cast_type);
30 return cast_valobj_ptr->GetSP();
33 ValueObjectCast::ValueObjectCast(ValueObject &parent, const ConstString &name,
34 const CompilerType &cast_type)
35 : ValueObject(parent), m_cast_type(cast_type) {
37 // m_value.SetContext (Value::eContextTypeClangType,
38 // cast_type.GetOpaqueQualType());
39 m_value.SetCompilerType(cast_type);
42 ValueObjectCast::~ValueObjectCast() {}
44 CompilerType ValueObjectCast::GetCompilerTypeImpl() { return m_cast_type; }
46 size_t ValueObjectCast::CalculateNumChildren(uint32_t max) {
47 auto children_count = GetCompilerType().GetNumChildren(true);
48 return children_count <= max ? children_count : max;
51 uint64_t ValueObjectCast::GetByteSize() {
52 ExecutionContext exe_ctx(GetExecutionContextRef());
53 return m_value.GetValueByteSize(nullptr, &exe_ctx);
56 lldb::ValueType ValueObjectCast::GetValueType() const {
57 // Let our parent answer global, local, argument, etc...
58 return m_parent->GetValueType();
61 bool ValueObjectCast::UpdateValue() {
62 SetValueIsValid(false);
65 if (m_parent->UpdateValueIfNeeded(false)) {
66 Value old_value(m_value);
67 m_update_point.SetUpdated();
68 m_value = m_parent->GetValue();
69 CompilerType compiler_type(GetCompilerType());
70 // m_value.SetContext (Value::eContextTypeClangType, compiler_type);
71 m_value.SetCompilerType(compiler_type);
72 SetAddressTypeOfChildren(m_parent->GetAddressTypeOfChildren());
73 if (!CanProvideValue()) {
74 // this value object represents an aggregate type whose
75 // children have values, but this object does not. So we
76 // say we are changed if our location has changed.
77 SetValueDidChange(m_value.GetValueType() != old_value.GetValueType() ||
78 m_value.GetScalar() != old_value.GetScalar());
80 ExecutionContext exe_ctx(GetExecutionContextRef());
81 m_error = m_value.GetValueAsData(&exe_ctx, m_data, 0, GetModule().get());
82 SetValueDidChange(m_parent->GetValueDidChange());
86 // The dynamic value failed to get an error, pass the error along
87 if (m_error.Success() && m_parent->GetError().Fail())
88 m_error = m_parent->GetError();
89 SetValueIsValid(false);
93 bool ValueObjectCast::IsInScope() { return m_parent->IsInScope(); }