1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
| //===-- ValueObjectCast.cpp -------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "lldb/Core/ValueObjectCast.h"
#include "lldb/Core/Value.h"
#include "lldb/Core/ValueObject.h"
#include "lldb/Symbol/CompilerType.h"
#include "lldb/Target/ExecutionContext.h"
#include "lldb/Utility/Scalar.h"
#include "lldb/Utility/Status.h"
namespace lldb_private {
class ConstString;
}
using namespace lldb_private;
lldb::ValueObjectSP ValueObjectCast::Create(ValueObject &parent,
ConstString name,
const CompilerType &cast_type) {
ValueObjectCast *cast_valobj_ptr =
new ValueObjectCast(parent, name, cast_type);
return cast_valobj_ptr->GetSP();
}
ValueObjectCast::ValueObjectCast(ValueObject &parent, ConstString name,
const CompilerType &cast_type)
: ValueObject(parent), m_cast_type(cast_type) {
SetName(name);
// m_value.SetContext (Value::eContextTypeClangType,
// cast_type.GetOpaqueQualType());
m_value.SetCompilerType(cast_type);
}
ValueObjectCast::~ValueObjectCast() {}
CompilerType ValueObjectCast::GetCompilerTypeImpl() { return m_cast_type; }
size_t ValueObjectCast::CalculateNumChildren(uint32_t max) {
ExecutionContext exe_ctx(GetExecutionContextRef());
auto children_count = GetCompilerType().GetNumChildren(
true, &exe_ctx);
return children_count <= max ? children_count : max;
}
uint64_t ValueObjectCast::GetByteSize() {
ExecutionContext exe_ctx(GetExecutionContextRef());
return m_value.GetValueByteSize(nullptr, &exe_ctx);
}
lldb::ValueType ValueObjectCast::GetValueType() const {
// Let our parent answer global, local, argument, etc...
return m_parent->GetValueType();
}
bool ValueObjectCast::UpdateValue() {
SetValueIsValid(false);
m_error.Clear();
if (m_parent->UpdateValueIfNeeded(false)) {
Value old_value(m_value);
m_update_point.SetUpdated();
m_value = m_parent->GetValue();
CompilerType compiler_type(GetCompilerType());
// m_value.SetContext (Value::eContextTypeClangType, compiler_type);
m_value.SetCompilerType(compiler_type);
SetAddressTypeOfChildren(m_parent->GetAddressTypeOfChildren());
if (!CanProvideValue()) {
// this value object represents an aggregate type whose children have
// values, but this object does not. So we say we are changed if our
// location has changed.
SetValueDidChange(m_value.GetValueType() != old_value.GetValueType() ||
m_value.GetScalar() != old_value.GetScalar());
}
ExecutionContext exe_ctx(GetExecutionContextRef());
m_error = m_value.GetValueAsData(&exe_ctx, m_data, GetModule().get());
SetValueDidChange(m_parent->GetValueDidChange());
return true;
}
// The dynamic value failed to get an error, pass the error along
if (m_error.Success() && m_parent->GetError().Fail())
m_error = m_parent->GetError();
SetValueIsValid(false);
return false;
}
bool ValueObjectCast::IsInScope() { return m_parent->IsInScope(); }
|