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 <cstddef> 22 #include <cstdint> 23 #include <optional> 24 25 namespace lldb_private { 26 27 /// A child of another ValueObject. 28 class ValueObjectChild : public ValueObject { 29 public: 30 ~ValueObjectChild() override; 31 GetByteSize()32 std::optional<uint64_t> GetByteSize() override { return m_byte_size; } 33 GetByteOffset()34 lldb::offset_t GetByteOffset() override { return m_byte_offset; } 35 GetBitfieldBitSize()36 uint32_t GetBitfieldBitSize() override { return m_bitfield_bit_size; } 37 GetBitfieldBitOffset()38 uint32_t GetBitfieldBitOffset() override { return m_bitfield_bit_offset; } 39 40 lldb::ValueType GetValueType() const override; 41 42 llvm::Expected<uint32_t> CalculateNumChildren(uint32_t max) override; 43 44 ConstString GetTypeName() override; 45 46 ConstString GetQualifiedTypeName() override; 47 48 ConstString GetDisplayTypeName() override; 49 50 bool IsInScope() override; 51 IsBaseClass()52 bool IsBaseClass() override { return m_is_base_class; } 53 IsDereferenceOfParent()54 bool IsDereferenceOfParent() override { return m_is_deref_of_parent; } 55 56 protected: 57 bool UpdateValue() override; 58 59 LazyBool CanUpdateWithInvalidExecutionContext() override; 60 GetCompilerTypeImpl()61 CompilerType GetCompilerTypeImpl() override { return m_compiler_type; } 62 63 CompilerType m_compiler_type; 64 ConstString m_type_name; 65 uint64_t m_byte_size; 66 int32_t m_byte_offset; 67 uint8_t m_bitfield_bit_size; 68 uint8_t m_bitfield_bit_offset; 69 bool m_is_base_class; 70 bool m_is_deref_of_parent; 71 std::optional<LazyBool> m_can_update_with_invalid_exe_ctx; 72 73 friend class ValueObject; 74 friend class ValueObjectConstResult; 75 friend class ValueObjectConstResultImpl; 76 friend class ValueObjectVTable; 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