ValueObjectMemory.h

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//===-- ValueObjectMemory.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_CORE_VALUEOBJECTMEMORY_H
#define LLDB_CORE_VALUEOBJECTMEMORY_H
 
#include "lldb/Core/Address.h"
#include "lldb/Core/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-forward.h"
#include "llvm/ADT/StringRef.h"
 
#include <cstddef>
#include <cstdint>
#include <optional>
 
namespace lldb_private {
class ExecutionContextScope;
 
/// A ValueObject that represents memory at a given address, viewed as some
/// set lldb type.
class ValueObjectMemory : public ValueObject {
public:
  ~ValueObjectMemory() override;
 
  static lldb::ValueObjectSP Create(ExecutionContextScope *exe_scope,
                                    llvm::StringRef name,
                                    const Address &address,
                                    lldb::TypeSP &type_sp);
 
  static lldb::ValueObjectSP Create(ExecutionContextScope *exe_scope,
                                    llvm::StringRef name,
                                    const Address &address,
                                    const CompilerType &ast_type);
 
  std::optional<uint64_t> GetByteSize() override;
 
  ConstString GetTypeName() override;
 
  ConstString GetDisplayTypeName() override;
 
  llvm::Expected<uint32_t> CalculateNumChildren(uint32_t max) override;
 
  lldb::ValueType GetValueType() const override;
 
  bool IsInScope() override;
 
  lldb::ModuleSP GetModule() override;
 
protected:
  bool UpdateValue() override;
 
  CompilerType GetCompilerTypeImpl() override;
 
  Address m_address; ///< The variable that this value object is based upon
  lldb::TypeSP m_type_sp;
  CompilerType m_compiler_type;
 
private:
  ValueObjectMemory(ExecutionContextScope *exe_scope,
                    ValueObjectManager &manager, llvm::StringRef name,
                    const Address &address, lldb::TypeSP &type_sp);
 
  ValueObjectMemory(ExecutionContextScope *exe_scope,
                    ValueObjectManager &manager, llvm::StringRef name,
                    const Address &address, const CompilerType &ast_type);
  // For ValueObject only
  ValueObjectMemory(const ValueObjectMemory &) = delete;
  const ValueObjectMemory &operator=(const ValueObjectMemory &) = delete;
};
 
} // namespace lldb_private
 
#endif // LLDB_CORE_VALUEOBJECTMEMORY_H