1//===-- ValueObjectChild.h --------------------------------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLDB_CORE_VALUEOBJECTCHILD_H
10#define LLDB_CORE_VALUEOBJECTCHILD_H
11
12#include "lldb/Core/ValueObject.h"
13
14#include "lldb/Symbol/CompilerType.h"
15#include "lldb/Utility/ConstString.h"
16#include "lldb/lldb-defines.h"
17#include "lldb/lldb-enumerations.h"
18#include "lldb/lldb-private-enumerations.h"
19#include "lldb/lldb-types.h"
20
21#include "llvm/ADT/Optional.h"
22
23#include <stddef.h>
24#include <stdint.h>
25
26namespace lldb_private {
27
28/// A child of another ValueObject.
29class ValueObjectChild : public ValueObject {
30public:
31 ~ValueObjectChild() override;
32
33 llvm::Optional<uint64_t> GetByteSize() override { return m_byte_size; }
34
35 lldb::offset_t GetByteOffset() override { return m_byte_offset; }
36
37 uint32_t GetBitfieldBitSize() override { return m_bitfield_bit_size; }
38
39 uint32_t GetBitfieldBitOffset() override { return m_bitfield_bit_offset; }
40
41 lldb::ValueType GetValueType() const override;
42
43 size_t CalculateNumChildren(uint32_t max) override;
44
45 ConstString GetTypeName() override;
46
47 ConstString GetQualifiedTypeName() override;
48
49 ConstString GetDisplayTypeName() override;
50
51 bool IsInScope() override;
52
53 bool IsBaseClass() override { return m_is_base_class; }
54
55 bool IsDereferenceOfParent() override { return m_is_deref_of_parent; }
56
57protected:
58 bool UpdateValue() override;
59
60 LazyBool CanUpdateWithInvalidExecutionContext() override;
61
62 CompilerType GetCompilerTypeImpl() override { return m_compiler_type; }
63
64 CompilerType m_compiler_type;
65 ConstString m_type_name;
66 uint64_t m_byte_size;
67 int32_t m_byte_offset;
68 uint8_t m_bitfield_bit_size;
69 uint8_t m_bitfield_bit_offset;
70 bool m_is_base_class;
71 bool m_is_deref_of_parent;
72 llvm::Optional<LazyBool> m_can_update_with_invalid_exe_ctx;
73
74 friend class ValueObject;
75 friend class ValueObjectConstResult;
76 friend class ValueObjectConstResultImpl;
77
78 ValueObjectChild(ValueObject &parent, const CompilerType &compiler_type,
79 ConstString name, uint64_t byte_size,
80 int32_t byte_offset, uint32_t bitfield_bit_size,
81 uint32_t bitfield_bit_offset, bool is_base_class,
82 bool is_deref_of_parent,
83 AddressType child_ptr_or_ref_addr_type,
84 uint64_t language_flags);
85
86 ValueObjectChild(const ValueObjectChild &) = delete;
87 const ValueObjectChild &operator=(const ValueObjectChild &) = delete;
88};
89
90} // namespace lldb_private
91
92#endif // LLDB_CORE_VALUEOBJECTCHILD_H
93