FM / cppgc

/snap/node/11691/include/node/cppgc

Name	Size	Mode	Actions
internal/	-	0755	rm
allocation.h	11889	0644	edit dl rm
common.h	643	0644	edit dl rm
cross-thread-persistent.h	15170	0644	edit dl rm
custom-space.h	2454	0644	edit dl rm
default-platform.h	2230	0644	edit dl rm
ephemeron-pair.h	804	0644	edit dl rm
explicit-management.h	3370	0644	edit dl rm
garbage-collected.h	3183	0644	edit dl rm
heap-consistency.h	12021	0644	edit dl rm
heap-handle.h	1289	0644	edit dl rm
heap-state.h	2632	0644	edit dl rm
heap-statistics.h	3982	0644	edit dl rm
heap.h	5834	0644	edit dl rm
liveness-broker.h	2396	0644	edit dl rm
macros.h	1345	0644	edit dl rm
member.h	24114	0644	edit dl rm
name-provider.h	2034	0644	edit dl rm
object-size-trait.h	1643	0644	edit dl rm
persistent.h	13937	0644	edit dl rm
platform.h	6042	0644	edit dl rm
prefinalizer.h	2944	0644	edit dl rm
process-heap-statistics.h	1009	0644	edit dl rm
sentinel-pointer.h	1208	0644	edit dl rm
source-location.h	414	0644	edit dl rm
testing.h	3033	0644	edit dl rm
trace-trait.h	3479	0644	edit dl rm
type-traits.h	8656	0644	edit dl rm
visitor.h	18516	0644	edit dl rm

Edit: /snap/node/11691/include/node/cppgc/sentinel-pointer.h (1208B)

// Copyright 2021 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef INCLUDE_CPPGC_SENTINEL_POINTER_H_
#define INCLUDE_CPPGC_SENTINEL_POINTER_H_

#include <cstdint>

#include "cppgc/internal/api-constants.h"

namespace cppgc {
namespace internal {

// Special tag type used to denote some sentinel member. The semantics of the
// sentinel is defined by the embedder.
struct SentinelPointer {
#if defined(CPPGC_POINTER_COMPRESSION)
  static constexpr intptr_t kSentinelValue =
      1 << api_constants::kPointerCompressionShift;
#else   // !defined(CPPGC_POINTER_COMPRESSION)
  static constexpr intptr_t kSentinelValue = 0b10;
#endif  // !defined(CPPGC_POINTER_COMPRESSION)
  template <typename T>
  operator T*() const {
    return reinterpret_cast<T*>(kSentinelValue);
  }
  // Hidden friends.
  friend bool operator==(SentinelPointer, SentinelPointer) { return true; }
  friend bool operator!=(SentinelPointer, SentinelPointer) { return false; }
};

}  // namespace internal

constexpr internal::SentinelPointer kSentinelPointer;

}  // namespace cppgc

#endif  // INCLUDE_CPPGC_SENTINEL_POINTER_H_

// Copyright 2021 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef INCLUDE_CPPGC_SENTINEL_POINTER_H_ #define INCLUDE_CPPGC_SENTINEL_POINTER_H_ #include #include "cppgc/internal/api-constants.h" namespace cppgc { namespace internal { // Special tag type used to denote some sentinel member. The semantics of the // sentinel is defined by the embedder. struct SentinelPointer { #if defined(CPPGC_POINTER_COMPRESSION) static constexpr intptr_t kSentinelValue = 1 << api_constants::kPointerCompressionShift; #else // !defined(CPPGC_POINTER_COMPRESSION) static constexpr intptr_t kSentinelValue = 0b10; #endif // !defined(CPPGC_POINTER_COMPRESSION) template operator T*() const { return reinterpret_cast(kSentinelValue); } // Hidden friends. friend bool operator==(SentinelPointer, SentinelPointer) { return true; } friend bool operator!=(SentinelPointer, SentinelPointer) { return false; } }; } // namespace internal constexpr internal::SentinelPointer kSentinelPointer; } // namespace cppgc #endif // INCLUDE_CPPGC_SENTINEL_POINTER_H_