6024e5c395
clang 20.0.0 (based on r547379) from build 12806354. Bug: http://b/379133546 Test: N/A Change-Id: I2eb8938af55d809de674be63cb30cf27e801862b Upstream-Commit: ad834e67b1105d15ef907f6255d4c96e8e733f57
80 lines
2.3 KiB
C++
80 lines
2.3 KiB
C++
//===-- Baton.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_UTILITY_BATON_H
|
|
#define LLDB_UTILITY_BATON_H
|
|
|
|
#include "lldb/lldb-enumerations.h"
|
|
#include "lldb/lldb-public.h"
|
|
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
#include <memory>
|
|
|
|
namespace lldb_private {
|
|
class Stream;
|
|
}
|
|
|
|
namespace lldb_private {
|
|
|
|
/// \class Baton Baton.h "lldb/Core/Baton.h"
|
|
/// A class designed to wrap callback batons so they can cleanup
|
|
/// any acquired resources
|
|
///
|
|
/// This class is designed to be used by any objects that have a callback
|
|
/// function that takes a baton where the baton might need to
|
|
/// free/delete/close itself.
|
|
///
|
|
/// The default behavior is to not free anything. Subclasses can free any
|
|
/// needed resources in their destructors.
|
|
class Baton {
|
|
public:
|
|
Baton() = default;
|
|
virtual ~Baton() = default;
|
|
|
|
virtual void *data() = 0;
|
|
|
|
virtual void GetDescription(llvm::raw_ostream &s,
|
|
lldb::DescriptionLevel level,
|
|
unsigned indentation) const = 0;
|
|
};
|
|
|
|
class UntypedBaton : public Baton {
|
|
public:
|
|
UntypedBaton(void *Data) : m_data(Data) {}
|
|
~UntypedBaton() override {
|
|
// The default destructor for an untyped baton does NOT attempt to clean up
|
|
// anything in m_data.
|
|
}
|
|
|
|
void *data() override { return m_data; }
|
|
void GetDescription(llvm::raw_ostream &s, lldb::DescriptionLevel level,
|
|
unsigned indentation) const override;
|
|
|
|
void *m_data; // Leave baton public for easy access
|
|
};
|
|
|
|
template <typename T> class TypedBaton : public Baton {
|
|
public:
|
|
explicit TypedBaton(std::unique_ptr<T> Item) : Item(std::move(Item)) {}
|
|
|
|
T *getItem() { return Item.get(); }
|
|
const T *getItem() const { return Item.get(); }
|
|
|
|
void *data() override { return Item.get(); }
|
|
void GetDescription(llvm::raw_ostream &s, lldb::DescriptionLevel level,
|
|
unsigned indentation) const override {}
|
|
|
|
protected:
|
|
std::unique_ptr<T> Item;
|
|
};
|
|
|
|
} // namespace lldb_private
|
|
|
|
#endif // LLDB_UTILITY_BATON_H
|