ValueObjectChild.h

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//===-- ValueObjectChild.h --------------------------------------*- 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
//
//===----------------------------------------------------------------------===//
 
#ifndef LLDB_VALUEOBJECT_VALUEOBJECTCHILD_H
#define LLDB_VALUEOBJECT_VALUEOBJECTCHILD_H
 
#include "lldb/ValueObject/ValueObject.h"
 
#include "lldb/Symbol/CompilerType.h"
#include "lldb/Utility/ConstString.h"
#include "lldb/lldb-defines.h"
#include "lldb/lldb-enumerations.h"
#include "lldb/lldb-private-enumerations.h"
#include "lldb/lldb-types.h"
 
#include <cstddef>
#include <cstdint>
#include <optional>
 
namespace lldb_private {
 
/// A child of another ValueObject.
class ValueObjectChild : public ValueObject {
public:
  ~ValueObjectChild() override;
 
  llvm::Expected<uint64_t> GetByteSize() override { return m_byte_size; }
 
  lldb::offset_t GetByteOffset() override { return m_byte_offset; }
 
  uint32_t GetBitfieldBitSize() override { return m_bitfield_bit_size; }
 
  uint32_t GetBitfieldBitOffset() override { return m_bitfield_bit_offset; }
 
  lldb::ValueType GetValueType() const override;
 
  llvm::Expected<uint32_t> CalculateNumChildren(uint32_t max) override;
 
  ConstString GetTypeName() override;
 
  ConstString GetQualifiedTypeName() override;
 
  ConstString GetDisplayTypeName() override;
 
  bool IsInScope() override;
 
  bool IsBaseClass() override { return m_is_base_class; }
 
  bool IsDereferenceOfParent() override { return m_is_deref_of_parent; }
 
protected:
  bool UpdateValue() override;
 
  LazyBool CanUpdateWithInvalidExecutionContext() override;
 
  CompilerType GetCompilerTypeImpl() override { return m_compiler_type; }
 
  CompilerType m_compiler_type;
  ConstString m_type_name;
  uint64_t m_byte_size;
  int32_t m_byte_offset;
  uint8_t m_bitfield_bit_size;
  uint8_t m_bitfield_bit_offset;
  bool m_is_base_class;
  bool m_is_deref_of_parent;
  std::optional<LazyBool> m_can_update_with_invalid_exe_ctx;
 
  friend class ValueObject;
  friend class ValueObjectConstResult;
  friend class ValueObjectConstResultImpl;
  friend class ValueObjectVTable;
 
  ValueObjectChild(ValueObject &parent, const CompilerType &compiler_type,
                   ConstString name, uint64_t byte_size, int32_t byte_offset,
                   uint32_t bitfield_bit_size, uint32_t bitfield_bit_offset,
                   bool is_base_class, bool is_deref_of_parent,
                   AddressType child_ptr_or_ref_addr_type,
                   uint64_t language_flags);
 
  ValueObjectChild(const ValueObjectChild &) = delete;
  const ValueObjectChild &operator=(const ValueObjectChild &) = delete;
};
 
} // namespace lldb_private
 
#endif // LLDB_VALUEOBJECT_VALUEOBJECTCHILD_H